CN221120949U - Valve sealing device - Google Patents
Valve sealing device Download PDFInfo
- Publication number
- CN221120949U CN221120949U CN202322247756.3U CN202322247756U CN221120949U CN 221120949 U CN221120949 U CN 221120949U CN 202322247756 U CN202322247756 U CN 202322247756U CN 221120949 U CN221120949 U CN 221120949U
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- CN
- China
- Prior art keywords
- valve
- sealing
- valve body
- gland
- clack
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 210000004907 gland Anatomy 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 125000003003 spiro group Chemical group 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000012824 chemical production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of valve sealing, in particular to a valve sealing device which comprises a valve body, a valve cover, a gland and a valve rod, wherein a water inlet channel is arranged at the left end of the valve body, a water outlet channel is arranged at the right end of the valve body, a water passing channel with the lower end communicated with the right end of the water inlet channel is arranged in the middle of the valve body, the upper end of the water passing channel is communicated with the left end of the water outlet channel, the valve cover is fixedly arranged at the upper end of the valve body in a sealing manner, the gland is fixedly arranged at the upper end of the valve cover, the lower end of the gland is in sealing threaded connection with the valve rod positioned in the valve body after the lower end of the gland passes through the valve cover in a sealing manner, and the valve sealing device also comprises a valve clack and a sealing plate. The valve body, the valve cover, the gland, the valve rod and the valve clack have the advantages of being reasonable and compact in structure, convenient to maintain, capable of being suitable for the stop valve with the metal valve clack and the specification being larger than DN65, safe, labor-saving, simple, convenient and efficient.
Description
Technical Field
The utility model relates to the technical field of valve sealing, in particular to a valve sealing device.
Background
When chemical production is operated, material medium or impurity particles stored in a pipeline easily cause damage to the sealing valve face of an original stop valve, or the bottom face of an original sealing valve clack is damaged due to impact corrosion of the sealing face by the valve operation medium, so that material leakage occurs, and great potential safety hazard is brought to production.
Disclosure of Invention
The utility model provides a valve sealing device, which overcomes the defects of the prior art, and can effectively solve the problems of low utilization rate, poor economic benefit and high maintenance cost when the traditional stop valve is leaked after running for a period of time.
The technical scheme of the utility model is realized by the following measures: the utility model provides a valve sealing device, including valve body, valve gap, gland and valve rod, the valve body left end is equipped with the passageway that intakes, the valve body right-hand member is equipped with the passageway that goes out, the valve body middle part is equipped with the lower extreme and the passageway that crosses of intakes right-hand member intercommunication, cross the passageway upper end and go out passageway left end intercommunication, valve body upper end sealed fixed mounting has the valve gap, valve gap upper end fixed mounting has the gland, sealed spiro union has the lower extreme to seal to pass the valve rod that is located the valve body after the valve gap, still include valve clack and closing plate, valve rod lower extreme fixed mounting has the valve clack, the closing plate that the passageway upper end can be sealed to valve clack downside detachable fixed mounting.
The following are further optimizations and/or improvements to the above-described inventive solution:
The sealing plate is characterized in that the center of the sealing plate can be provided with a vertically through mounting hole, a connecting screw rod with the upper end fixed with the center of the lower end of the valve clack is arranged in the mounting hole in a penetrating manner in a sealing manner, and a compression nut with the upper end in sealing contact with the lower end of the sealing plate is connected to the outer side of the connecting screw rod in a sealing threaded manner.
A gasket sleeved on the outer side of the connecting screw rod can be arranged between the compression nut and the sealing plate.
The outer side of the lower end of the connecting screw rod can be connected with a cap nut in a threaded manner.
The sealing plate may be made of polytetrafluoroethylene.
The valve body, the valve cover, the gland, the valve rod and the valve clack have the advantages of being reasonable and compact in structure, convenient to maintain, capable of being suitable for the stop valve with the metal valve clack and the specification being larger than DN65, safe, labor-saving, simple, convenient and efficient.
Drawings
Fig. 1 is a schematic diagram of a front sectional structure of a first embodiment.
The codes in the drawings are respectively: 1 is a valve body, 2 is a valve cover, 3 is a gland, 4 is a valve rod, 5 is a water inlet channel, 6 is a water outlet channel, 7 is a water outlet channel, 8 is a valve clack, 9 is a sealing plate, 10 is a connecting screw, 11 is a compression nut, 12 is a gasket, and 13 is a cap nut.
Detailed Description
The present utility model is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present utility model.
In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The utility model is further described below with reference to examples and figures:
Embodiment one: as shown in fig. 1, the valve sealing device comprises a valve body 1, a valve cover 2, a gland 3 and a valve rod 4, wherein a water inlet channel 5 is arranged at the left end of the valve body 1, a water outlet channel 6 is arranged at the right end of the valve body 1, a water passing channel 7 with the lower end communicated with the right end of the water inlet channel 5 is arranged in the middle of the valve body 1, the upper end of the water passing channel 7 is communicated with the left end of the water outlet channel 6, the valve cover 2 is fixedly arranged at the upper end of the valve body 1 in a sealing manner, the gland 3 is fixedly arranged at the upper end of the valve cover 2, the lower end of the gland 3 is fixedly connected with the valve rod 4 which is positioned in the valve body 1 after penetrating through the valve cover 2 in a sealing manner, the valve sealing device further comprises a valve clack 8 and a sealing plate 9, the lower end of the valve clack 8 is fixedly arranged at the lower side of the valve clack 8 in a detachable manner, and the sealing plate 9 which can seal the upper end of the water passing channel 7 is arranged.
According to the demand, be equipped with the packing between valve gap 2 and the valve rod 4, the inboard spiro union of valve gap 2 lower part has the swivel nut that upper end and packing lower extreme offset, and gland 3 upper end is fixed with the valve rod nut of spiro union in the valve rod 4 outside, and valve rod 4 upper end outside fixed mounting has the hand wheel. In the use, through setting up closing plate 9, when water channel 7 takes place to reveal, accomplish the quick maintenance to valve clack 8 through changing closing plate 9, reduce maintenance cost, extension valve body 1, valve gap 2, gland 3, valve rod 4 and valve clack 8's life can be applicable to and have metal valve clack 8 and specification is greater than DN65 stop valve. The utility model has reasonable and compact structure, convenient maintenance and has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.
The valve sealing device can be further optimized or/and improved according to actual needs:
Embodiment two: as shown in fig. 1, the sealing plate 9 is provided with a vertically penetrating mounting hole in the center, a connecting screw 10 with the upper end fixed with the center of the lower end of the valve clack 8 is sealed and penetrated in the mounting hole, and a compression nut 11 with the upper end in sealing contact with the lower end of the sealing plate 9 is sealed and screwed on the outer side of the connecting screw 10. In the use, through this setting, the dismouting and the change of closing plate 9 of being convenient for reduce the maintenance cost of valve.
Embodiment III: as an optimization of the above embodiment, as shown in fig. 1, a gasket 12 sleeved outside the connecting screw 10 is installed between the compression nut 11 and the sealing plate 9. The upper end of the gasket 12 is in sealing contact with the lower end of the sealing plate 9, and the lower end of the gasket 12 is in sealing contact with the upper end of the compression nut 11. In the use process, through the arrangement, the stress area of the sealing plate 9 can be increased, and the phenomenon that the sealing plate 9 is broken due to stress concentration is avoided.
Embodiment four: as an optimization of the above embodiment, as shown in fig. 1, a cap nut 13 is screwed on the outer side of the lower end of the connecting screw 10. The upper end of the cap nut 13 is in sealing contact with the lower end of the compression nut 11 as required. Thus avoiding corrosion and prolonging the service life.
Fifth embodiment: as an optimization of the above embodiment, as shown in fig. 1, the sealing plate 9 is made of polytetrafluoroethylene. The thickness of the sealing plate 9 was 10mm as required. In the use, the material of closing plate 9 adopts polytetrafluoroethylene, can increase the temperature resistant scope of closing plate 9, and secondly, after valve clack 8 is dismantled, compresses tightly closing plate 9 at the up end of water channel 7, can increase area of contact to strengthen sealed effect, finally, still be convenient for maintain like this, utilize parking time can quick replacement closing plate 9, reduce maintenance cost, the life of extension valve.
The technical characteristics form the embodiment of the utility model, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
The installation process of the best embodiment of the utility model comprises the following steps:
First, disassembling the stop valve: firstly, disassembling a fixing bolt and a nut on a valve cover 2, then taking out a sealing gasket originally installed on the upper part of a valve body 1 after the fixing bolt is disassembled, and finally, drawing out a valve rod 4 together with a valve clack 8 to be separated from the valve body 1;
Second, installing a connecting screw 10: a connecting screw rod 10 with the thickness of M16 x 55mm is vertically welded at the center of the detached valve clack 8, and the material of the connecting screw rod 10 is consistent with that of the valve clack 8;
Third step, installing a sealing plate 9: firstly, prefabricating a polytetrafluoroethylene circular plate with the thickness of 10mm, wherein the outer diameter is consistent with the size of a valve clack 8, a mounting hole with the aperture of 16mm is formed in the center of the circular plate, then, a prefabricated sealing plate 9 is sleeved on a connecting screw rod 10, and a gasket 12 is mounted on the connecting screw rod 10; finally, the compression nut 11 of the M16 and the cap nut 13 of the M16 are arranged outside the connecting screw 10 to be fastened, the materials of the gasket 12, the compression nut 11 and the cap nut 13 are consistent with the material of the valve body 1, and the materials can be selected according to the stop in the water inlet channel 5.
Fourth step, assembling the stop valve: firstly, a sealing gasket of a valve cover 2 and a valve body 1 is placed between the valve cover 2 and the valve body 1, so that the inner edge distance and the outer edge distance are consistent; then fastening a fixing bolt between the valve cover 2 and the valve seat; and finally, conveying the valve after the installation to a pressure testing station for pressure testing and leakage testing, and putting the valve into production for use after the valve is normal.
Claims (1)
1. The valve sealing device comprises a valve body, a valve cover, a gland and a valve rod, wherein the left end of the valve body is provided with a water inlet channel, the right end of the valve body is provided with a water outlet channel, the middle part of the valve body is provided with a water passing channel, the lower end of the water passing channel is communicated with the right end of the water inlet channel, the upper end of the water passing channel is communicated with the left end of the water outlet channel, the upper end of the valve body is fixedly provided with the valve cover in a sealing manner, the upper end of the valve cover is fixedly provided with the gland, the lower end of the gland is in sealing threaded connection with the valve rod which is positioned in the valve body after the lower end of the gland passes through the valve cover in a sealing manner, the valve sealing device is characterized by also comprising a valve clack and a sealing plate, the lower end of the valve rod is fixedly provided with the valve clack, and the lower side of the valve clack is detachably and fixedly provided with the sealing plate which can seal the upper end of the water passing channel;
The center of the sealing plate is provided with a mounting hole which is penetrated up and down, a connecting screw rod with the upper end fixed with the center of the lower end of the valve clack is arranged in the mounting hole in a sealing way, and a compression nut with the upper end in sealing contact with the lower end of the sealing plate is connected with the outer side of the connecting screw rod in a sealing and screwing way;
A gasket sleeved on the outer side of the connecting screw rod is arranged between the compression nut and the sealing plate;
a cap nut is screwed on the outer side of the lower end of the connecting screw;
the sealing plate is made of polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322247756.3U CN221120949U (en) | 2023-08-21 | 2023-08-21 | Valve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322247756.3U CN221120949U (en) | 2023-08-21 | 2023-08-21 | Valve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221120949U true CN221120949U (en) | 2024-06-11 |
Family
ID=91374680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322247756.3U Active CN221120949U (en) | 2023-08-21 | 2023-08-21 | Valve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221120949U (en) |
-
2023
- 2023-08-21 CN CN202322247756.3U patent/CN221120949U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |