CN108644493A - The sealing structure and encapsulating method of highly pressurised liquid baffle type pipe connections - Google Patents
The sealing structure and encapsulating method of highly pressurised liquid baffle type pipe connections Download PDFInfo
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- CN108644493A CN108644493A CN201810887212.4A CN201810887212A CN108644493A CN 108644493 A CN108644493 A CN 108644493A CN 201810887212 A CN201810887212 A CN 201810887212A CN 108644493 A CN108644493 A CN 108644493A
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- 238000007789 sealing Methods 0.000 title claims abstract description 138
- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 51
- 230000004888 barrier function Effects 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000004146 energy storage Methods 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 37
- 239000012855 volatile organic compound Substances 0.000 claims description 12
- 210000004907 gland Anatomy 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims 2
- 239000000945 filler Substances 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 239000003039 volatile agent Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种管连接件的密封结构。特别是涉及一种防止管线连接件之间物料泄漏的高压液体阻隔式管连接件的密封结构与密封方法。The invention relates to a sealing structure of a pipe connector. In particular, it relates to a sealing structure and a sealing method of a high-pressure liquid barrier type pipe connector for preventing material leakage between the pipeline connectors.
背景技术Background technique
现有的管线连接件的结构如图1、图2所示，其中挥发性物料1流经由相互连接的上游直管2和下游直管3构成的挥发性物料1的流路，其中，所述的上游直管2和下游直管3的连接是通过螺纹密封4来实现的。或者是，所述的上游直管2和下游直管3的连接是通过连接套5、垫片6和螺纹密封4来实现的。螺纹密封4的材质是生料带或麻绳，垫片的材质是橡胶、聚四氟乙烯等。由于挥发性物料或VOCs的渗透力远远大于液体物料，所以上游直管2、下游直管3之间的连接处是存在一定量的无组织泄漏，而这一泄漏量是持续不间断的，随着时间的推移这个泄漏量越来越大。很难找到渗漏的具体位置，也很难彻底得到修复，往往明明知道渗漏也必须带病工作。The structure of the existing pipeline connector is shown in Figure 1 and Figure 2, wherein the volatile material 1 flows through the flow path of the volatile material 1 formed by the interconnected upstream straight pipe 2 and downstream straight pipe 3, wherein the The connection of the upstream straight pipe 2 and the downstream straight pipe 3 is realized by a threaded seal 4 . Alternatively, the connection between the upstream straight pipe 2 and the downstream straight pipe 3 is realized through the connecting sleeve 5 , the gasket 6 and the threaded seal 4 . The material of the thread seal 4 is raw material tape or hemp rope, and the material of the gasket is rubber, polytetrafluoroethylene or the like. Since the penetration of volatile materials or VOCs is much greater than that of liquid materials, there is a certain amount of unorganized leakage at the connection between the upstream straight pipe 2 and the downstream straight pipe 3, and this leakage is continuous. This leak is getting bigger and bigger over time. It is difficult to find the specific location of the leakage, and it is also difficult to completely repair it. Often, it is necessary to work with a disease even knowing the leakage.
这就表明现有技术管线连接件的结构和工作原理有很多缺点难以克服：This just shows that the structure and working principle of the prior art pipeline connector have many shortcomings that are difficult to overcome:
1、在管线中没有物流的时候无法知道单个管线连接件泄漏点具体的准确位置；1. When there is no logistics in the pipeline, it is impossible to know the exact location of the leakage point of a single pipeline connection;
2、气体的渗透力比液体的渗透力大很多，因此，只要存在间隙就肯定存在渗漏，而且持续不断，越漏越大。这样泄漏出来的气体挥发物与大气中的空气混合比例增加就会引发爆炸，容易造成火灾，给安全带来巨大的隐患。2. The permeability of gas is much greater than that of liquid. Therefore, as long as there is a gap, there must be leakage, and it will continue continuously, and the leakage will become larger. The increase of the mixing ratio of the leaked gas volatiles and the air in the atmosphere will cause an explosion, which is easy to cause a fire and brings huge hidden dangers to safety.
3、无法彻底修复而带病生产，尤其是“不可达点”更是如此，易挥发物料和VOCs泄漏到大气中污染环境、增加雾霾。污染大气无法捕捉而形成累积效应，使大气的纯净度越来越低。3. It cannot be completely repaired and produced with diseases, especially in "inaccessible points". Volatile materials and VOCs leak into the atmosphere to pollute the environment and increase smog. Polluted air cannot be captured and forms a cumulative effect, making the purity of the atmosphere lower and lower.
4、工厂的管线连接件泄漏点数量众多，积少成多，难以控制。4. There are a large number of leakage points of pipeline connectors in the factory, which are difficult to control.
5、在管线工作期间发生泄漏，很难做到在不停车的情况下边运转边修复。5. Leakage occurs during pipeline work, and it is difficult to repair while running without stopping.
6、检测、修复泄漏点费时费力，修复时间滞后、不及时，而且人为因素大，检测数据不准确。6. It is time-consuming and labor-intensive to detect and repair the leakage point, the repair time lags and is not timely, and the human factor is large, and the detection data is inaccurate.
7、物料本身就是资源，泄漏的部分无法收回就造成浪费，增加化工产品的成本。7. The material itself is a resource. If the leaked part cannot be recovered, it will cause waste and increase the cost of chemical products.
8、气体物料实际就是毒气，会诱发人类疾病。8. The gas material is actually poisonous gas, which can induce human diseases.
发明内容Contents of the invention
本发明所要解决的技术问题是，提供一种能够有效防止管线中的物料挥发物沿着两管件之间连接处泄漏大气之中的高压液体阻隔式管连接件的密封结构与密封方法。The technical problem to be solved by the present invention is to provide a sealing structure and sealing method of a high-pressure liquid barrier pipe connector that can effectively prevent material volatiles in the pipeline from leaking into the atmosphere along the connection between two pipes.
本发明所采用的技术方案是：一种高压液体阻隔式管连接件的密封结构，包括有构成挥发性物料流路的上游直管和下游直管，所述上游直管的出口端插入所述下游直管的入口端并通过螺纹密封密封连接，或者是，所述上游直管与下游直管对接连接，并在连接处套有密封连接件，所述密封连接件的一端与所述上游直管是通过螺纹密封密封连接，所述密封连接件的另一端与所述下游直管相互卡钩连接，所述卡钩处设置有密封垫片，在经过密封连接的上游直管和下游直管连接处的外侧设置有能够包裹住连接处的用于通过高压液体阻隔挥发性物料或VOCs从连接处渗透的密封套结构，所述密封套结构上分别设置有用于向密封套结构的密封腔内导入高压洁净阻隔液体的进液口，以及用于排出所述密封腔内气体的放气口，其中，所述的高压洁净阻隔液体用于对上游直管与下游直管的密封连接处进行再次阻隔密封，所述的进液口通过高压液体输送管连接用于提供高压洁净阻隔液体的蓄能罐的高压洁净阻隔液体出液口。The technical solution adopted in the present invention is: a sealing structure of a high-pressure liquid barrier pipe connector, including an upstream straight pipe and a downstream straight pipe forming a volatile material flow path, and the outlet end of the upstream straight pipe is inserted into the The inlet end of the downstream straight pipe is sealed and connected by screw thread, or, the upstream straight pipe is butt-connected with the downstream straight pipe, and a sealing connection piece is sleeved at the connection, and one end of the sealing connection piece is connected to the upstream straight pipe. The pipe is sealed and connected by thread, and the other end of the sealed connection is connected with the downstream straight pipe by a hook. The hook is provided with a sealing gasket. The outer side of the connection is provided with a sealing sleeve structure that can wrap the connection and is used to block the penetration of volatile materials or VOCs from the connection through high-pressure liquid. A liquid inlet for introducing a high-pressure clean barrier liquid, and an air release port for discharging the gas in the sealed cavity, wherein the high-pressure clean barrier liquid is used to re-block the sealed connection between the upstream straight pipe and the downstream straight pipe Sealing, the liquid inlet is connected to the high-pressure clean barrier liquid outlet of the energy storage tank for providing high-pressure clean barrier liquid through a high-pressure liquid delivery pipe.
所述的密封套结构包括有密封外套，所述密封外套的两端口内侧与所对应的上游直管和下游直管之间分别嵌入有用于封闭密封腔的填料函，两个所述的填料函与所对应的上游直管和下游直管的外侧壁之间形成有填料槽，所述填料槽内填入有密封填料，所述密封外套的两个端口上分别通过螺钉固定连接有用于封堵填料函和密封填料的填料压盖，所述密封腔形成在所述密封外套内侧面、上游直管外侧、下游直管外侧以及嵌入在密封外套两端口内的填料函之间，所述的进液口和放气口分别形成在所述密封外套上。The sealing sleeve structure includes a sealing sleeve, and stuffing boxes for sealing the sealing cavity are respectively embedded between the inner sides of the two ports of the sealing sleeve and the corresponding upstream straight pipe and downstream straight pipe, and the two stuffing boxes A packing groove is formed between the outer side walls of the corresponding upstream straight pipe and the downstream straight pipe, the packing groove is filled with sealing packing, and the two ports of the sealing jacket are fixedly connected with screws for plugging The stuffing box and the stuffing gland of the sealing packing, the sealing cavity is formed between the inner surface of the sealing jacket, the outer side of the upstream straight pipe, the outer side of the downstream straight pipe and the stuffing box embedded in the two ports of the sealing jacket. A liquid port and an air release port are respectively formed on the sealing jacket.
所述的密封套结构包括有密封外套，所述密封外套的两端口内侧与所对应的上游直管和下游直管之间分别嵌入有用于封闭密封腔的填料函，两个所述的填料函与所对应的上游直管和下游直管的外侧壁之间形成有填料槽，所述填料槽内填入有密封填料，所述密封外套的两个端口上分别通过螺钉固定连接有用于封堵填料函和密封填料的填料压盖，所述密封腔形成在所述密封外套内侧、上游直管外侧、下游直管外侧、密封连接件外侧以及嵌入在密封外套两端口内的填料函之间，所述的进液口和放气口分别形成在所述密封外套上。The sealing sleeve structure includes a sealing sleeve, and stuffing boxes for sealing the sealing cavity are respectively embedded between the inner sides of the two ports of the sealing sleeve and the corresponding upstream straight pipe and downstream straight pipe, and the two stuffing boxes A packing groove is formed between the outer side walls of the corresponding upstream straight pipe and the downstream straight pipe, the packing groove is filled with sealing packing, and the two ports of the sealing jacket are fixedly connected with screws for plugging stuffing box and stuffing gland of sealing packing, the sealing cavity is formed between the inner side of the sealing outer casing, the outer side of the upstream straight pipe, the outer side of the downstream straight pipe, the outer side of the sealing connector and the stuffing box embedded in the two ports of the sealing outer casing, The liquid inlet and air outlet are respectively formed on the sealing jacket.
所述的填料函与所述的密封外套之间分别设置有径向密封圈和轴向密封圈。A radial sealing ring and an axial sealing ring are respectively arranged between the stuffing box and the sealing jacket.
所述的密封填料是密封圈或是密封垫或是密封盘根。The sealing packing is a sealing ring or a sealing gasket or a sealing packing.
所述的填料压盖包括有用于套在所述的上游直管或下游直管上并通过螺钉插入螺孔而固定连接在密封外套端口上的填料压板，所述填料压板在位于所述上游直管或下游直管侧一体形成有向外凸出的用于插入到所述填料函外端口内侧的填料槽内顶住密封填料的凸台。The packing gland includes a packing plate that is used to be sleeved on the upstream straight pipe or the downstream straight pipe and fixedly connected to the port of the sealing jacket by inserting screws into the screw holes. The packing plate is located on the upstream straight pipe The side of the pipe or the downstream straight pipe is integrally formed with an outwardly protruding boss for being inserted into the packing groove inside the outer port of the stuffing box to withstand the sealing packing.
一种高压液体阻隔式管连接件的密封结构的阻隔方法，是依靠管连接件的密封套结构，通过高压阻隔液体切断管件之间连接处泄漏通道，能够有效防止管线中的物料挥发物沿着两个管件之间泄漏大气之中，做到挥发性有机化合物零泄漏。A barrier method for the sealing structure of high-pressure liquid barrier-type pipe connectors, which relies on the seal sleeve structure of the pipe connectors to cut off the leakage channels at the joints between the pipes through the high-pressure barrier liquid, which can effectively prevent the material volatiles in the pipeline from flowing along the pipeline. Leak into the atmosphere between the two pipe fittings to achieve zero leakage of volatile organic compounds.
本发明的高压液体阻隔式管连接件的密封结构与密封方法，是利用高压阻隔液体切断两管件之间连接处泄漏通道的密封结构，能够有效防止管线中的物料挥发物沿着两个管件之间泄漏大气之中的结构与方法，这种方法可以做到挥发性有机化合物(VOCs)零泄漏。本发明优点如下：The sealing structure and sealing method of the high-pressure liquid barrier pipe connector of the present invention is a sealing structure that uses a high-pressure barrier liquid to cut off the leakage channel at the joint between the two pipe fittings, and can effectively prevent the material volatiles in the pipeline from flowing along the two pipe fittings. The structure and method of leakage into the atmosphere between time, this method can achieve zero leakage of volatile organic compounds (VOCs). Advantage of the present invention is as follows:
1、没有泄漏通道。1. There is no leakage channel.
2、物料本身就是资源，挥发性有机化合物(VOCs)零泄漏既节能又减排。2. The material itself is a resource, and zero leakage of volatile organic compounds (VOCs) saves energy and reduces emissions.
3、观察、控制蓄能罐里的液面高度和罐内的压力就能预判两管件之间连接处的工作状况，防范与未然。3. Observing and controlling the liquid level in the energy storage tank and the pressure in the tank can predict the working conditions of the connection between the two pipe fittings, and prevent them from happening.
4、无论管线里有没有物料都可以方便看到水滴的位置就能找到渗漏的位置，使维修做到有的放矢。4. Regardless of whether there is material in the pipeline, you can easily see the position of the water drop to find the position of the leak, so that the maintenance can be targeted.
5、一旦泄漏可以在线维修，边修复边生产，不需要停机维修。5. Once leaked, it can be repaired online, and it can be produced while repairing, without shutting down for maintenance.
6、改造的互换性强，投入小。6. The interchangeability of transformation is strong, and the investment is small.
7、维护方便。7. Easy maintenance.
8、避免爆炸和发生火灾，保证安全生产。8. Avoid explosion and fire and ensure safe production.
附图说明Description of drawings
图1是现有技术的阻隔气体物料泄漏管线连接件的密封装置第一结构示意图；Fig. 1 is a schematic diagram of the first structure of the sealing device of the prior art barrier gas material leakage pipeline connector;
图2是现有技术的阻隔气体物料泄漏管线连接件的密封装置第二结构示意图；Fig. 2 is a schematic diagram of the second structure of the sealing device of the gas material leakage pipeline connector in the prior art;
图3是本发明高压液体阻隔式管连接件的密封结构第一实施例的结构示意图；Fig. 3 is a structural schematic diagram of the first embodiment of the sealing structure of the high-pressure liquid barrier pipe connector of the present invention;
图4是本发明高压液体阻隔式管连接件的密封结构第二实施例的结构示意图；Fig. 4 is a structural schematic diagram of the second embodiment of the sealing structure of the high-pressure liquid barrier pipe connector of the present invention;
图5是本发明中填料压盖的结构示意图。Fig. 5 is a structural schematic diagram of the packing gland in the present invention.
图中in the picture
1：挥发性物料 2：上游直管1: Volatile material 2: Upstream straight pipe
3：下游直管 4：螺纹密封3: Downstream straight pipe 4: Thread seal
5：密封连接件 6：密封垫片5: Sealing joint 6: Sealing gasket
7：密封套结构 7.1：密封腔7: Sealing sleeve structure 7.1: Sealing cavity
7.2：进液口 7.3：放气口7.2: Liquid inlet 7.3: Air outlet
7.4：密封外套 7.5：填料函7.4: Seal jacket 7.5: Stuffing box
7.6：密封填料 7.7：填料压盖7.6: Seal packing 7.7: Packing gland
7.71：螺孔 7.72：凸台7.71: Screw hole 7.72: Boss
7.73：填料压板 7.8：径向密封圈7.73: Packing plate 7.8: Radial sealing ring
7.9：轴向密封圈 7.10：螺钉7.9: Axial sealing ring 7.10: Screw
8：高压液体输送管 9：蓄能罐8: High-pressure liquid delivery pipe 9: Energy storage tank
9.1：视镜 9.2：排气口9.1: Sight glass 9.2: Exhaust port
9.3：高压洁净气体 9.4：高压洁净阻隔液体9.3: High pressure clean gas 9.4: High pressure clean barrier liquid
9.5：出液口9.5: Liquid outlet
具体实施方式Detailed ways
下面结合实施例和附图对本发明的高压液体阻隔式管连接件的密封结构与密封方法做出详细说明。The sealing structure and sealing method of the high-pressure liquid barrier pipe connector of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings.
本发明的高压液体阻隔式管连接件的密封结构与密封方法，是利用高压阻隔液体切断两管件之间连接处泄漏通道的密封结构，能够有效防止管线中的物料挥发物沿着两个管件之间泄漏大气之中。The sealing structure and sealing method of the high-pressure liquid barrier pipe connector of the present invention is a sealing structure that uses a high-pressure barrier liquid to cut off the leakage channel at the joint between the two pipe fittings, and can effectively prevent the material volatiles in the pipeline from flowing along the two pipe fittings. leakage into the atmosphere.
如图3、图4所示，本发明的高压液体阻隔式管连接件的密封结构，包括有构成挥发性物料1流路的上游直管2和下游直管3，所述上游直管2的出口端插入所述下游直管3的入口端并通过螺纹密封4密封连接，或者是，所述上游直管2与下游直管3对接连接，并在连接处套有密封连接件5，所述密封连接件5的一端与所述上游直管2是通过螺纹密封4密封连接，所述密封连接件5的另一端与所述下游直管3相互卡钩连接，所述卡钩处设置有密封垫片6，在经过密封连接的上游直管2和下游直管3连接处的外侧设置有能够包裹住连接处的用于通过高压液体阻隔挥发性物料或VOCs从连接处渗透的密封套结构7，所述密封套结构7上分别设置有用于向密封套结构7的密封腔7.1内导入高压洁净阻隔液体9.4的进液口7.2，以及用于排出所述密封腔7.1内气体的放气口7.3，其中，所述的高压洁净阻隔液体9.4用于对上游直管2与下游直管3的密封连接处进行再次阻隔密封，所述的进液口7.2通过高压液体输送管8连接用于提供高压洁净阻隔液体9.4的蓄能罐9的高压洁净阻隔液体出液口9.5。As shown in Fig. 3 and Fig. 4, the sealing structure of the high-pressure liquid barrier type pipe connector of the present invention includes an upstream straight pipe 2 and a downstream straight pipe 3 constituting the flow path of the volatile material 1, and the upstream straight pipe 2 The outlet end is inserted into the inlet end of the downstream straight pipe 3 and is sealed and connected by a threaded seal 4, or the upstream straight pipe 2 is butt-connected with the downstream straight pipe 3, and a sealing joint 5 is sleeved at the joint, and the One end of the sealing connector 5 is sealed and connected to the upstream straight pipe 2 through a threaded seal 4, and the other end of the sealing connector 5 is connected to the downstream straight pipe 3 with a hook, and a seal is provided at the hook. Gasket 6, on the outer side of the joint of the upstream straight pipe 2 and the downstream straight pipe 3, which is sealed and connected, is provided with a sealing sleeve structure 7 capable of wrapping the joint for blocking volatile materials or VOCs from penetrating the joint through high-pressure liquid , the sealing sleeve structure 7 is respectively provided with a liquid inlet 7.2 for introducing a high-pressure clean barrier liquid 9.4 into the sealing cavity 7.1 of the sealing sleeve structure 7, and an air release port 7.3 for discharging the gas in the sealing cavity 7.1, Among them, the high-pressure clean barrier liquid 9.4 is used to re-block and seal the sealed connection between the upstream straight pipe 2 and the downstream straight pipe 3, and the liquid inlet 7.2 is connected through a high-pressure liquid delivery pipe 8 to provide high-pressure clean air. The high-pressure cleaning of the accumulator tank 9 of the barrier liquid 9.4 blocks the liquid outlet 9.5.
如图3所示，所述的密封套结构7包括有密封外套7.4，所述密封外套7.4的两端口内侧与所对应的上游直管2和下游直管3之间分别嵌入有用于封闭密封腔7.1的填料函7.5，两个所述的填料函7.5与所对应的上游直管2和下游直管3的外侧壁之间形成有填料槽，所述填料槽内填入有密封填料7.6，所述的密封填料7.6是密封圈或是密封垫或是密封填料。所述密封外套7.4的两个端口上分别通过螺钉7.10固定连接有用于封堵填料函7.5和密封填料7.6的填料压盖7.7，所述的填料函7.5与所述的密封外套7.4之间分别设置有径向密封圈7.8和轴向密封圈7.9。所述密封腔7.1形成在所述密封外套7.4内侧面、上游直管2外侧、下游直管3外侧以及嵌入在密封外套7.4两端口内的填料函7.5之间，所述的进液口7.2和放气口7.3分别形成在所述密封外套7.4上。As shown in Figure 3, the sealing sleeve structure 7 includes a sealing sleeve 7.4, and the inner sides of the two ports of the sealing sleeve 7.4 and the corresponding upstream straight pipe 2 and downstream straight pipe 3 are respectively embedded with sealing chambers for sealing the sealing cavity. The stuffing box 7.5 of 7.1, a stuffing groove is formed between the two stuffing boxes 7.5 and the corresponding outer walls of the upstream straight pipe 2 and the downstream straight pipe 3, and the sealing packing 7.6 is filled in the stuffing groove, so The sealing packing 7.6 mentioned above is a sealing ring or a gasket or a sealing packing. The two ports of the sealing jacket 7.4 are respectively fixedly connected with the packing gland 7.7 for sealing the stuffing box 7.5 and the sealing packing 7.6 through screws 7.10, and the stuffing box 7.5 and the sealing jacket 7.4 are respectively arranged There are radial sealing ring 7.8 and axial sealing ring 7.9. The sealing cavity 7.1 is formed between the inner surface of the sealing jacket 7.4, the outer side of the upstream straight pipe 2, the outer side of the downstream straight pipe 3, and the stuffing box 7.5 embedded in the two ports of the sealing jacket 7.4. The liquid inlet 7.2 and Air vents 7.3 are respectively formed on the sealing jackets 7.4.
如图4所示，所述的密封套结构7包括有密封外套7.4，所述密封外套7.4的两端口内侧与所对应的上游直管2和下游直管3之间分别嵌入有用于封闭密封腔7.1的填料函7.5，两个所述的填料函7.5与所对应的上游直管2和下游直管3的外侧壁之间形成有填料槽，所述填料槽内填入有密封填料7.6，所述的密封填料7.6是密封圈或是密封垫或是密封盘根。所述密封外套7.4的两个端口上分别通过螺钉7.10固定连接有用于封堵填料函7.5和密封填料7.6的填料压盖7.7，所述的填料函7.5与所述的密封外套7.4之间分别设置有径向密封圈7.8和轴向密封圈7.9。所述密封腔7.1形成在所述密封外套7.4内侧、上游直管2外侧、下游直管3外侧、密封连接件5外侧以及嵌入在密封外套7.4两端口内的填料函7.5之间，所述的进液口7.2和放气口7.3分别形成在所述密封外套7.4上。As shown in Figure 4, the sealing sleeve structure 7 includes a sealing sleeve 7.4, and the inner sides of the two ports of the sealing sleeve 7.4 and the corresponding upstream straight pipe 2 and downstream straight pipe 3 are respectively embedded with sealing chambers for sealing the sealing cavity. The stuffing box 7.5 of 7.1, a stuffing groove is formed between the two stuffing boxes 7.5 and the corresponding outer walls of the upstream straight pipe 2 and the downstream straight pipe 3, and the sealing packing 7.6 is filled in the stuffing groove, so The sealing packing 7.6 mentioned above is a sealing ring or a gasket or a sealing packing. The two ports of the sealing jacket 7.4 are respectively fixedly connected with the packing gland 7.7 for sealing the stuffing box 7.5 and the sealing packing 7.6 through screws 7.10, and the stuffing box 7.5 and the sealing jacket 7.4 are respectively arranged There are radial sealing ring 7.8 and axial sealing ring 7.9. The sealing cavity 7.1 is formed on the inside of the sealing jacket 7.4, the outside of the upstream straight pipe 2, the outside of the downstream straight pipe 3, the outside of the sealing connector 5 and the stuffing box 7.5 embedded in the two ports of the sealing jacket 7.4. The liquid inlet 7.2 and the air outlet 7.3 are respectively formed on the sealing jacket 7.4.
如图5所示，所述的填料压盖7.7包括有用于套在所述的上游直管2或下游直管3上并通过螺钉7.10插入螺孔7.71而固定连接在密封外套7.44端口上的填料压板7.73，所述填料压板7.73在位于所述上游直管2或下游直管3侧一体形成有向外凸出的用于插入到所述填料函7.5外端口内侧的填料槽内顶住密封填料7.6的凸台7.72。As shown in Figure 5, the packing gland 7.7 includes a packing used to be sleeved on the upstream straight pipe 2 or the downstream straight pipe 3 and fixedly connected to the port of the sealing jacket 7.44 by inserting the screw 7.10 into the screw hole 7.71 Pressing plate 7.73, the packing pressing plate 7.73 is integrally formed on the side of the upstream straight pipe 2 or downstream straight pipe 3 with an outwardly protruding stuffing groove for inserting into the inner side of the outer port of the stuffing box 7.5 to withstand the sealing packing 7.6 boss 7.72.
本发明的高压液体阻隔式管连接件的密封结构的阻隔方法，是依靠管连接件的密封套结构，通过高压阻隔液体切断管件之间连接处泄漏通道，能够有效防止管线中的物料挥发物沿着两个管件之间泄漏大气之中，做到挥发性有机化合物零泄漏。The barrier method of the sealing structure of the high-pressure liquid barrier-type pipe connector of the present invention relies on the sealing sleeve structure of the pipe connector, and cuts off the leakage channel of the joint between the pipe parts through the high-pressure barrier liquid, which can effectively prevent the material volatiles in the pipeline from leaking along the pipeline. With the leakage between the two pipe fittings into the atmosphere, zero leakage of volatile organic compounds is achieved.
Claims (7)
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