CN204716994U - A kind of explosion-proof type ammonia stop valve - Google Patents
A kind of explosion-proof type ammonia stop valve Download PDFInfo
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- CN204716994U CN204716994U CN201520445198.4U CN201520445198U CN204716994U CN 204716994 U CN204716994 U CN 204716994U CN 201520445198 U CN201520445198 U CN 201520445198U CN 204716994 U CN204716994 U CN 204716994U
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- proof
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- pressure relief
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 230000006837 decompression Effects 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
本实用新型涉及一种防爆型氨用截止阀，它包括阀体，阀体内部连接有阀座，阀体左侧设置有进流口，右侧设置有出流口，进流口一侧的壳体上安装有泄压防爆装置，阀体上部安装有阀盖，阀盖内部安装有阀杆，阀杆上端连接有手轮，阀杆下部安装有减压装置，阀杆下端连接有阀瓣盖，阀瓣盖连接有阀瓣，阀瓣底端设置有缓压装置，泄压防爆装置具有在流体突发高压的情况下自行泄压的功能，能够有效地保护设备不受损害，预防爆炸事故的发生，减压装置和橡胶缓压装置，具有很好的缓压和抗压功能，能够很好地保护阀件，延长阀件的使用寿命，本实用新型具有设计合理，防爆性能强，密封效果好，使用寿命长，安全可靠的优点。
The utility model relates to an explosion-proof stop valve for ammonia, which comprises a valve body, a valve seat is connected inside the valve body, an inlet port is arranged on the left side of the valve body, an outlet port is arranged on the right side, and a valve seat on the side of the inlet port A pressure relief and explosion-proof device is installed on the shell, a bonnet is installed on the upper part of the valve body, a valve stem is installed inside the bonnet, a hand wheel is connected to the upper end of the valve stem, a pressure reducing device is installed on the lower part of the valve stem, and a valve disc is connected to the lower end of the valve stem Cover, the disc cover is connected with a disc, and the bottom of the disc is provided with a pressure relief device, and the pressure relief and explosion-proof device has the function of self-relieving pressure in the case of a sudden high pressure of the fluid, which can effectively protect the equipment from damage and prevent explosions In the event of an accident, the decompression device and the rubber pressure relief device have good pressure relief and pressure resistance functions, can well protect the valve parts, and prolong the service life of the valve parts. The utility model has reasonable design and strong explosion-proof performance. Good sealing effect, long service life, safety and reliability.
Description
技术领域technical field
本实用新型属于化工设备技术领域，具体涉及一种截止阀，特别涉及一种防爆型氨用截止阀。The utility model belongs to the technical field of chemical equipment, in particular to a stop valve, in particular to an explosion-proof stop valve for ammonia.
背景技术Background technique
氨用截止阀作为控制介质截止的启闭装置，广泛使用于储存氧气、氮气、液氨、液化气等专用气体管道，氨用截止阀的作用是使高压气体的压力下降到可使用范围内，但是在使用过程中，经常会出现由于误操作或其它原因造成的流经阀体的流体压力骤然增大，目前通常选用的普通氨用截止阀抗压能差，当流体的压力大于阀体最大的抗压值时，导致设备爆炸，从而污染周边环境，甚至危害附近人员的生命安全。因此，设计一种具有防爆性能、使用寿命长，安全可靠的氨用截止阀具有非常重要的意义。The stop valve for ammonia is used as the opening and closing device to control the cut-off of the medium, and is widely used in special gas pipelines for storing oxygen, nitrogen, liquid ammonia, liquefied gas, etc. The function of the stop valve for ammonia is to reduce the pressure of high-pressure gas to the usable range. However, in the process of use, the pressure of the fluid flowing through the valve body often increases suddenly due to misoperation or other reasons. When the anti-pressure value is higher, the equipment will explode, thereby polluting the surrounding environment and even endangering the lives of nearby personnel. Therefore, it is of great significance to design an ammonia globe valve with explosion-proof performance, long service life, safety and reliability.
实用新型内容Utility model content
本实用新型的目的是为了解决现有技术存在的缺陷和不足，提供一种在突发高压的情况下，能够自行泄压，有效保护设备和预防爆炸事故发生的防爆型氨用截止阀。The purpose of this utility model is to solve the defects and deficiencies of the prior art, and provide an explosion-proof ammonia stop valve that can release pressure by itself in the case of sudden high pressure, effectively protect equipment and prevent explosion accidents.
本实用新型的目的是这样实现的：一种防爆型氨用截止阀，它包括阀体，所述的阀体内部连接有阀座，所述的阀体左侧设置有进流口，右侧设置有出流口，所述的进流口一侧的壳体上安装有泄压防爆装置，所述的阀体上部安装有阀盖，所述的阀盖内部安装有阀杆，所述的阀杆上端连接有手轮，所述的阀杆与阀盖之间安装有密封填料，所述的密封填料上部设置有填料压盖，所述的阀杆下部安装有减压装置，所述的阀杆下端连接有阀瓣盖，所述的阀瓣盖连接有阀瓣，所述的阀瓣底端设置有缓压装置，所述的缓压装置与阀座配合。The purpose of this utility model is achieved as follows: an explosion-proof ammonia stop valve, which includes a valve body, the valve body is connected with a valve seat, the left side of the valve body is provided with an inlet, and the right side An outlet is provided, a pressure relief and explosion-proof device is installed on the housing on the side of the inlet, a bonnet is installed on the upper part of the valve body, and a valve stem is installed inside the bonnet. The upper end of the valve stem is connected with a handwheel, the sealing packing is installed between the valve stem and the valve cover, the upper part of the sealing packing is provided with a packing gland, the lower part of the valve stem is equipped with a pressure reducing device, and the The lower end of the valve stem is connected with a disc cover, the valve disc cover is connected with a valve disc, and the bottom end of the valve disc is provided with a pressure-relief device, and the pressure-relief device cooperates with the valve seat.
所述的阀杆下端设置有台阶结构，减压装置安装在台阶上部。The lower end of the valve stem is provided with a stepped structure, and the decompression device is installed on the upper part of the stepped.
所述的减压装置为多个套在阀杆外围的减压套环组成。The decompression device is composed of a plurality of decompression collars sleeved on the periphery of the valve stem.
所述的缓压装置贴合在阀瓣下端，呈下窄上宽的倒梯形结构。The pressure-relief device is attached to the lower end of the valve clack, and has an inverted trapezoidal structure with a narrow bottom and a wide top.
所述的泄压防爆装置为一种具有自动泄压功能的防爆器。The pressure relief and explosion-proof device is an explosion-proof device with an automatic pressure relief function.
所述的阀座与阀体为一体结构。The valve seat and the valve body are integrally structured.
所述的阀盖与阀体为榫槽式密封连接。The valve cover and the valve body are in a tongue-and-groove sealing connection.
本实用新型能达到的有益效果：本实用新型采用的自动泄压防爆装置，可以在流体突发高压的情况下自行泄压，减小流体的压力，从而有效地保护设备，预防爆炸事故的发生；减压装置和缓压装置均用高分子橡胶材料组成，具有很好的缓压和抗压能力，能够很好地保护阀件，延长阀件的使用寿命，本实用新型具有设计合理、防爆性能强、密封效果好、使用寿命长，安全可靠等优点。The beneficial effects that the utility model can achieve: the automatic pressure relief and explosion-proof device adopted in the utility model can automatically release the pressure in the case of sudden high pressure of the fluid, reduce the pressure of the fluid, thereby effectively protecting the equipment and preventing the occurrence of explosion accidents The decompression device and the slow pressure device are composed of polymer rubber materials, which have good pressure slowing and pressure resistance capabilities, can well protect the valve parts, and prolong the service life of the valve parts. The utility model has reasonable design and explosion-proof performance Strong, good sealing effect, long service life, safe and reliable, etc.
附图说明Description of drawings
图1是本实用新型一种防爆型氨用截止阀。Fig. 1 is an explosion-proof ammonia globe valve of the present invention.
图中：1、进流口，2、缓压装置，3、泄压防爆装置，4、阀盖，5、密封填料，6、手轮，7、填料压盖，8、阀杆，9、减压装置，10、阀瓣盖，11、阀瓣，12、阀座，13、出流口，14、阀体。In the figure: 1. Inlet, 2. Pressure slowing device, 3. Pressure relief and explosion-proof device, 4. Bonnet, 5. Seal packing, 6. Handwheel, 7. Packing gland, 8. Valve stem, 9. Pressure reducing device, 10, disc cover, 11, valve disc, 12, valve seat, 13, outflow port, 14, valve body.
具体实施方式Detailed ways
下面结合附图及具体实施方式对本实用新型做进一步的详细说明。The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
实施例1Example 1
如图1所示，一种防爆型氨用截止阀，它包括阀体14，所述的阀体14内部连接有阀座12，所述的阀体14左侧设置有进流口1、右侧设置有出流口13，所述的进流口1一侧的壳体上安装有泄压防爆装置3，所述的阀体14上部安装有阀盖4，所述的阀盖4内部安装有阀杆8，所述的阀杆8上端连接有手轮6，所述的阀杆8与阀盖之4间安装有密封填料5，所述的密封填料5上部设置有填料压盖7，所述的阀杆8下部安装有减压装置9，所述的阀杆8下端连接有阀瓣盖10，所述的阀瓣盖10连接有阀瓣11，所述的阀瓣11底端设置有缓压装置2，所述的缓压装置2与阀座12配合。As shown in Figure 1, an explosion-proof ammonia stop valve includes a valve body 14, the valve body 14 is internally connected with a valve seat 12, and the left side of the valve body 14 is provided with an inlet port 1, a right An outlet port 13 is provided on the side, and a pressure relief explosion-proof device 3 is installed on the shell on the side of the inlet port 1. A valve cover 4 is installed on the upper part of the valve body 14, and the valve cover 4 is installed inside There is a valve stem 8, the upper end of the valve stem 8 is connected with a hand wheel 6, a sealing packing 5 is installed between the valve stem 8 and the valve cover, and a packing gland 7 is arranged on the upper part of the sealing packing 5, The lower part of the valve stem 8 is equipped with a decompression device 9, the lower end of the valve stem 8 is connected with a valve disc cover 10, the valve disc cover 10 is connected with a valve disc 11, and the bottom end of the valve disc 11 is set There is a pressure relief device 2, and the pressure relief device 2 cooperates with the valve seat 12.
本实用新型通过旋转手轮带动阀杆上下运动，阀杆上下运动带动阀瓣运动，通过阀瓣与阀座的接触和脱离来完成阀门的闭合与开启；顺时针旋转手轮，手轮带动阀杆下降，阀杆的下降带动阀瓣向下运动，随着阀瓣的下降，阀瓣下端缓压装置也向下运动，直至缓压装置与阀座密封接触，切断通路，截止阀关闭；逆时针旋转手轮，手轮带动带动阀杆向上运动，阀杆带动阀瓣也随之向上运动，阀瓣带动缓压装置向上运动，随着缓压装置的上升，缓压装置脱离阀座，打开通路，截止阀开启，本实用新型具有设计合理、防爆性能强、密封效果好，使用寿命长等优点。The utility model drives the valve stem to move up and down by rotating the handwheel, and the up and down movement of the valve stem drives the valve clack to move, and completes the closing and opening of the valve through the contact and separation of the valve clack and the valve seat; the handwheel drives the valve by clockwise rotation. The stem descends, and the valve stem’s decline drives the valve clack to move downward. With the valve clack’s descent, the pressure relief device at the lower end of the valve clack also moves downward until the pressure relief device is in sealing contact with the valve seat, the passage is cut off, and the stop valve is closed; Turn the handwheel clockwise, the handwheel drives the valve stem to move upward, the valve stem drives the valve disc to move upward, and the valve disc drives the pressure relief device to move upward. With the rise of the pressure relief device, the pressure relief device breaks away from the valve seat and opens. passage, the shut-off valve is opened, and the utility model has the advantages of reasonable design, strong explosion-proof performance, good sealing effect, and long service life.
实施例2Example 2
如图1所示，一种防爆型氨用截止阀，它包括阀体14，所述的阀体14内部连接有阀座12，所述的阀体14侧分设置有进流口1、右侧设置有出流口13，所述的进流口1一侧的壳体上安装有泄压防爆装置3，所述的阀体14上部安装有阀盖4，所述的阀盖4内部安装有阀杆8，所述的阀杆8上端连接有手轮6，所述的阀杆8与阀盖之4间安装有密封填料5，所述的密封填料5上部设置有填料压盖7，所述的阀杆8下部安装有减压装置9，所述的阀杆8下端连接有阀瓣盖10，所述的阀瓣盖10连接有阀瓣11，所述的阀瓣11底端设置有缓压装置2，所述的缓压装置2与阀座12配合。As shown in Figure 1, an explosion-proof ammonia stop valve includes a valve body 14, the valve body 14 is internally connected with a valve seat 12, and the side of the valve body 14 is provided with an inlet port 1, a right An outlet port 13 is provided on the side, and a pressure relief explosion-proof device 3 is installed on the shell on the side of the inlet port 1. A valve cover 4 is installed on the upper part of the valve body 14, and the valve cover 4 is installed inside There is a valve stem 8, the upper end of the valve stem 8 is connected with a hand wheel 6, a sealing packing 5 is installed between the valve stem 8 and the valve cover, and a packing gland 7 is arranged on the upper part of the sealing packing 5, The lower part of the valve stem 8 is equipped with a decompression device 9, the lower end of the valve stem 8 is connected with a valve disc cover 10, the valve disc cover 10 is connected with a valve disc 11, and the bottom end of the valve disc 11 is set There is a pressure relief device 2, and the pressure relief device 2 cooperates with the valve seat 12.
所述的阀杆8下端设置有台阶结构，减压装置安装在台阶上部。The lower end of the valve rod 8 is provided with a stepped structure, and the decompression device is installed on the upper part of the step.
所述的减压装置9为多个套在阀杆8外围的减压套环组成。The decompression device 9 is composed of a plurality of decompression collars sleeved on the periphery of the valve stem 8 .
所述的缓压装置2贴合在阀瓣11下端，呈下窄上宽的倒梯形结构。The pressure relief device 2 is attached to the lower end of the valve disc 11 and has an inverted trapezoidal structure with a narrow bottom and a wide top.
所述的泄压防爆装置3为一种具有自动泄压功能的防爆器。The pressure relief and explosion-proof device 3 is an explosion-proof device with an automatic pressure relief function.
所述的阀座12与阀体14为一体结构。The valve seat 12 and the valve body 14 are integrally structured.
所述的阀盖4与阀体14为榫槽式密封连接。The valve cover 4 and the valve body 14 are in a tongue-and-groove sealing connection.
本实用新型的阀盖与阀体采用榫槽式密封连接，增加了阀体的密封性，自动泄压防爆装置具有在流体突发高压的情况下自行泄压的功能，减小流体的压力，从而有效地保护设备，预防爆炸事故的发生；旋转手轮，手轮带动阀杆上下运动，阀杆上下运动带动阀瓣下端的缓压装置上下运动，使缓压装置与阀座脱离与接触，从而可以轻松地完成截止阀的开启和关闭，套在阀杆外围的减压装置可以减轻阀杆所受的压力，贴合在阀瓣下端的高分子橡胶缓压装置能够缓解阀瓣所受的压力，具有很好的缓压和抗压功能，能够很好地保护阀件，延长阀件的使用寿命；本实用新型具有设计合理、防爆性能强、密封效果好、使用寿命长，安全可靠的优点。The bonnet and the valve body of the utility model are connected by tongue and groove sealing, which increases the sealing performance of the valve body. The automatic pressure relief explosion-proof device has the function of self-pressure relief in the case of a sudden high pressure of the fluid, reducing the pressure of the fluid. In order to effectively protect the equipment and prevent the occurrence of explosion accidents; rotate the handwheel, the handwheel drives the valve stem to move up and down, and the up and down movement of the valve stem drives the pressure relief device at the lower end of the valve disc to move up and down, so that the pressure relief device is out of contact with the valve seat, In this way, the opening and closing of the stop valve can be easily completed. The pressure reducing device around the valve stem can reduce the pressure on the valve stem, and the polymer rubber pressure relief device attached to the lower end of the valve disc can relieve the pressure on the valve disc. pressure, has a good pressure-relieving and pressure-resisting function, can well protect the valve parts, and prolong the service life of the valve parts; the utility model has reasonable design, strong explosion-proof performance, good sealing effect, long service life, safe and reliable advantage.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445198.4U CN204716994U (en) | 2015-06-23 | 2015-06-23 | A kind of explosion-proof type ammonia stop valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445198.4U CN204716994U (en) | 2015-06-23 | 2015-06-23 | A kind of explosion-proof type ammonia stop valve |
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| Publication Number | Publication Date |
|---|---|
| CN204716994U true CN204716994U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520445198.4U Expired - Fee Related CN204716994U (en) | 2015-06-23 | 2015-06-23 | A kind of explosion-proof type ammonia stop valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013741A (en) * | 2017-05-17 | 2017-08-04 | 南通艾迈特机械有限公司 | A kind of self checking structure of valve |
| CN108150654A (en) * | 2018-03-31 | 2018-06-12 | 大连函量科技发展有限公司 | An anti-rust and pressure-resistant valve for marine engineering ships |
| CN112032375A (en) * | 2020-09-09 | 2020-12-04 | 罗兰自控阀业（上海）有限公司 | Pressure regulating valve device with nitrogen seal |
| CN119934248A (en) * | 2025-04-09 | 2025-05-06 | 中阀控股（集团）有限公司 | A flow control valve and control method thereof |
-
2015
- 2015-06-23 CN CN201520445198.4U patent/CN204716994U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013741A (en) * | 2017-05-17 | 2017-08-04 | 南通艾迈特机械有限公司 | A kind of self checking structure of valve |
| CN108150654A (en) * | 2018-03-31 | 2018-06-12 | 大连函量科技发展有限公司 | An anti-rust and pressure-resistant valve for marine engineering ships |
| CN112032375A (en) * | 2020-09-09 | 2020-12-04 | 罗兰自控阀业（上海）有限公司 | Pressure regulating valve device with nitrogen seal |
| CN119934248A (en) * | 2025-04-09 | 2025-05-06 | 中阀控股（集团）有限公司 | A flow control valve and control method thereof |
| CN119934248B (en) * | 2025-04-09 | 2025-07-11 | 中阀控股（集团）有限公司 | Flow regulating valve and control method thereof |
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Granted publication date: 20151021 Termination date: 20160623 |