CN209326910U - Gate valve pressure device - Google Patents
Gate valve pressure device Download PDFInfo
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- CN209326910U CN209326910U CN201920331300.6U CN201920331300U CN209326910U CN 209326910 U CN209326910 U CN 209326910U CN 201920331300 U CN201920331300 U CN 201920331300U CN 209326910 U CN209326910 U CN 209326910U
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- gate valve
- pressure
- connecting pipe
- pressure device
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Abstract
The utility model discloses a kind of gate valve pressure devices, are applied to gate valve, and gate valve includes valve deck, valve body, valve rod and flap, and gate valve pressure device includes: to suppress ring, connection short tube, connecting pipe, suppression of machine structure, pressure gauge and isolating valve.It suppresses ring to be set between valve deck and valve body, and the side for suppressing ring offers aperture；Connect short tube one end and keyhole welding；It is welded with the other end for connecting short tube connecting pipe one end；The other end of suppression of machine structure one end and connecting pipe is welded and fixed；Pressure gauge is set in connecting pipe, and size of the pressure gauge to show pressure；And isolating valve is set on pipeline；Wherein, isolating valve is closed after suppression of machine structure is forced into predetermined pressure to gate valve and carries out pressure maintaining, and the sealing performance of gate valve is judged by the variation of observation pressure gauge.Whereby, the gate valve pressure device of the utility model, it is simple and reasonable, can it is more acurrate judgement gate valve sealing performance, to ensure that the safe operation of system and equipment.
Description
Technical field
The utility model is about nuclear power station mechanical equipment technical field, especially with regard to a kind of gate valve pressure device.
Background technique
Gate valve is for being truncated pipeline medium in nuclear power station, but longtime running late gate sealing surface is easy to produce defect, causes
Valves leakage loses break-in facility, needs the valve that disintegrates, and repairs to sealing surface.After valve sealing face is repaired, need to check
Whether valve seal is good, and common inspection method has blue oil test and two kinds of bulge test.Blue oil test is by flap
A thin layer of blue oil is smeared on sealing surface, is then shut off valve, so that flap and valve base sealing face contact is generated impression, is passed through pressure
Whether trace is good to judge sealing.This method is higher to the skill requirement of staff, and the insufficient personnel's judging result of experience can
There can be deviation, lead to valves leakage, therefore reliability is lower.Bulge test is after closing valve, by introducing water or sky
Gas is simultaneously forced into certain pressure, observes leakage situation or pressure change to judge whether valve seal is good.Bulge test is again
It is divided into and suppresses and suppress online offline.Suppressing offline is to disassemble valve from pipeline, is beaten on platform in dedicated suppress
Pressure, is generally used for valve of the flanged joint on pipeline, is not suitable for being welded on the valve on pipeline.Suppressing online is by valve
After closing, water is introduced in valve upper chamber or air carries out bulge test, therefore can be used for being welded on the valve on pipeline.It should
Method requires valve upper chamber to have the water of access or the interface of air.In nuclear power station, the important gate valve of small part only in nuclear island
It is provided with packing purge hole, suppresses use for valve, most of gate valve does not have packing purge hole, therefore can not be beaten online
Pressure.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
It is simple and reasonable the purpose of this utility model is to provide a kind of gate valve pressure device, more acurrate it can judge
The sealing performance of gate valve, to ensure that the safe operation of system and equipment.
To achieve the above object, the utility model provides a kind of gate valve pressure device, is applied to gate valve, gate valve includes valve
Lid, valve body, valve rod and flap, gate valve pressure device include: to suppress ring, connection short tube, connecting pipe, suppression of machine structure, pressure gauge
And isolating valve.It suppresses ring to be set between valve deck and valve body, and the side for suppressing ring offers aperture；Connect short tube one end with
Keyhole welding；It is welded with the other end for connecting short tube connecting pipe one end；The weldering of the other end of suppression of machine structure one end and connecting pipe
Connect fixation；Pressure gauge is set in connecting pipe, and size of the pressure gauge to show pressure；And isolating valve is set to pipeline
On；Wherein, isolating valve is closed after suppression of machine structure is forced into predetermined pressure to gate valve and carries out pressure maintaining, by the variation for observing pressure gauge
To judge the sealing performance of gate valve.
In a preferred embodiment, the top for suppressing ring has a groove, and the diameter of groove and depth and valve body
The diameter and depth of groove are identical.
In a preferred embodiment, the lower part for suppressing ring has boss, and the diameter of boss and height and valve deck
The diameter and height of boss are identical.
In a preferred embodiment, the top and lower part for suppressing ring are separately installed with gasket seal
In a preferred embodiment, gate valve pressure device further includes the first union and the second union.First
It is welded with the other end for connecting short tube one end of union；One end of second union and the other end of connecting pipe weld.
In a preferred embodiment, gate valve pressure device further includes high-pressure hose, one end of high-pressure hose and first
The other end of union is fixedly connected, and the other end of high-pressure hose is fixedly connected with the other end of the second union.
In a preferred embodiment, gate valve pressure device further includes drain valve, is set in connecting pipe, and is discharged
Valve after the completion of suppressing to be drained.
In a preferred embodiment, suppression of machine structure includes hand pump and water tank.The water outlet and connecting tube of water tank
Road is fixedly connected；Wherein, the water in water tank can be passed sequentially through connecting pipe, high-pressure hose, connection short tube by operation hand pump
And aperture is suppressed into gate valve.
Compared with prior art, gate valve pressure device according to the present utility model, it is simple and reasonable, it can be to non-stuffing
The gate valve of purge hole carries out online bulge test, with the sealing performance of accurate judgement gate valve, to ensure that system and equipment
Safe operation.
Detailed description of the invention
Fig. 1 is the overall structure diagram according to the gate valve pressure device of one embodiment of the utility model.
Fig. 2 is the structural schematic diagram for suppressing ring according to the gate valve pressure device of one embodiment of the utility model.
Main appended drawing reference explanation:
1- suppresses ring, 2- aperture, 3- connection short tube, 4- connecting pipe, 5- pressure gauge, 6- isolating valve, 7- gasket seal, 8-
High-pressure hose, 9- drain valve, 10- hand pump, 11- water tank, 12- valve deck, 13- valve body, 14- valve rod, 15- flap.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1 to Figure 2, Fig. 1 is the overall structure according to the gate valve pressure device of one embodiment of the utility model
Schematic diagram；Fig. 2 is the structural schematic diagram for suppressing ring according to the gate valve pressure device of one embodiment of the utility model.
According to a kind of gate valve pressure device of the preferred embodiments of the present invention, it is applied to gate valve, gate valve includes valve deck
12, valve body 13, valve rod 14 and flap 15, gate valve pressure device include: to suppress ring 1, connection short tube 3, connecting pipe 4, stamper
Structure, pressure gauge 5 and isolating valve 6.Suppress the side that ring 1 is set between valve deck 12 and valve body 13, and suppresses ring 1 offer it is small
Hole 2；It connects 3 one end of short tube and aperture 2 welds；It is welded with the other end for connecting short tube 34 one end of connecting pipe；Suppression of machine structure one
It holds and is welded and fixed with the other end of connecting pipe 4；Pressure gauge 5 is set in connecting pipe 4, and pressure gauge 5 is to show pressure
Size；And isolating valve 6 is set on pipeline；Wherein, isolating valve 6 is closed after suppression of machine structure is forced into predetermined pressure to gate valve
Pressure maintaining is carried out, the sealing performance of gate valve is judged by the variation of observation pressure gauge 5.
In a preferred embodiment, the top for suppressing ring 1 has groove, and the diameter of groove and depth and valve body 13
Groove diameter and depth it is identical；The lower part for suppressing ring 1 has boss, and the boss of the diameter of boss and height and valve deck 12
Diameter and height it is identical；The top and lower part for suppressing ring 1 are separately installed with gasket seal 7
In a preferred embodiment, gate valve pressure device further includes the first union and the second union.First
It is welded with the other end for connecting short tube 3 one end of union；One end of second union and the other end of connecting pipe 4 weld；
Gate valve pressure device further includes high-pressure hose 8, and one end of high-pressure hose 8 is fixedly connected with the other end of the first union, and high
The other end of pressure hose 8 is fixedly connected with the other end of the second union.
In a preferred embodiment, gate valve pressure device further includes drain valve 9, is set in connecting pipe 4, and is arranged
Valve 9 is put to be drained after the completion of suppressing；Suppression of machine structure includes hand pump 10 and water tank 11.The water outlet of water tank 11 and company
Adapter tube road 4 is fixedly connected；Wherein, the water in water tank 11 can be passed sequentially through connecting pipe 4, high-pressure hose by operation hand pump 10
8, it connects short tube 3 and aperture 2 is suppressed into gate valve.
In practical applications, the gate valve pressure device of the utility model, by installing one between valve body 13 and valve deck 12
It is a to suppress ring 1, the diameter, highly identical as the diameter of 12 boss of valve deck, height of 1 lower boss of ring is suppressed, it is recessed to suppress 1 top of ring
The diameter of slot, depth are identical as the diameter of 13 groove of valve body, depth.It suppresses about 1 ring and gasket seal 7 is respectively installed in fact
It now seals, suppresses 1 side of ring and be provided with an aperture 2,2 outside weld of aperture is connected to connection short tube 3, and connection 3 end of short tube is welded with work
Connector introduces pressure medium by union and carries out bulge test.It is non-stuffing purge hole by suppressing ring 1 and connection short tube 3
Gate valve one interface is provided, pressure medium can be introduced by this interface and carry out bulge test, solve many gate valves in scene
The problem of can not suppressing online because of non-stuffing purge hole, specific external pressure device can diversifications.
For example, the gate valve pressure device of the utility model includes 11, isolating valves of a hand pump 10 and cistern
6,5, one, pressure gauge high-pressure hose, 8, the connection short tubes 3 of drain valve 9, one and one suppress ring 1.Hand pump 10 and
Cistern 11 is weldingly connected with pipeline, and isolating valve 6 and drain valve 9 are also weldingly connected with pipeline；It is between pressure gauge 5 and pipeline
It is threadedly coupled, 8 both ends of high-pressure hose are union connection, easy to disassemble.Water tank 11 is for storing water, and hand pump 10 is for giving
Water pressurization, isolating valve 6 for being isolated after pressurizeing, pressure maintaining, for being drained after having suppressed, pressure gauge 5 is used for drain valve 9
Indicate pressure size, high-pressure hose 8 connects short tube 3 and suppress ring 1 and suppress access port with offer for providing flexible connection.Peace
Bi Yihou is installed, it is as follows to suppress process: gate valve is closed, closes drain valve 9, opens isolating valve 6, by hand pump 10 from Jiang Shui
Water in case 11 squeezes into valve upper chamber, closes the progress pressure maintaining of isolating valve 6 after being forced into certain pressure, observes the change of pressure gauge 5
Change situation to judge valve seal performance.After pressure maintaining, opens drain valve 9 and carry out pressure release, then remove pressure device.
Always, the gate valve pressure device of the utility model, it is simple and reasonable, it can the more acurrate leakproofness for judging gate valve
Can, it not only can be used for suppressing for offline valve, but also can be used for suppressing for online valve；Not only it can be used for parallel gate valve, but also can
To be used for wedge action valve；It is particularly suitable for the bulge test of the gate valve of no packing purge hole, application range is wider, more
It is convenient, it improves work efficiency, reduces the maintenance cost of equipment.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (8)
1. a kind of gate valve pressure device is applied to gate valve, the gate valve includes valve deck, valve body, valve rod and flap, and feature exists
In the gate valve pressure device includes:
Ring is suppressed, is set between the valve deck and the valve body, and the side for suppressing ring offers aperture；
Connect short tube, one end and the keyhole welding；
The other end of connecting pipe, one end and the connection short tube welds；
Suppression of machine structure, one end and the other end of the connecting pipe are welded and fixed；
Pressure gauge is set in the connecting pipe, and size of the pressure gauge to show pressure；And
Isolating valve is set on the pipeline；
Wherein, the suppression of machine structure is forced into after predetermined pressure to the gate valve closes the isolating valve progress pressure maintaining, passes through sight
The variation of the pressure gauge is examined to judge the sealing performance of the gate valve.
2. gate valve pressure device as described in claim 1, which is characterized in that the top for suppressing ring has groove, and institute
Diameter and the depth for stating groove are identical as the diameter of the groove of the valve body and depth.
3. gate valve pressure device as described in claim 1, which is characterized in that the lower part for suppressing ring has boss, and institute
Diameter and the height for stating boss are identical as the diameter of the boss of the valve deck and height.
4. gate valve pressure device as described in claim 1, which is characterized in that the top for suppressing ring and lower part are installed respectively
There is gasket seal.
5. gate valve pressure device as described in claim 1, which is characterized in that further include:
The other end of first union, one end and the connection short tube welds；And
The other end of second union, one end and the connecting pipe welds.
6. gate valve pressure device as claimed in claim 5, which is characterized in that it further include high-pressure hose, the high-pressure hose
One end is fixedly connected with the other end of first union, and the other end of the high-pressure hose and second union
The other end is fixedly connected.
7. gate valve pressure device as described in claim 1, which is characterized in that further include drain valve, be set to the connecting tube
On road, and the drain valve after the completion of suppressing to be drained.
8. gate valve pressure device as claimed in claim 6, which is characterized in that the suppression of machine structure includes:
Hand pump；And
Water tank, the water outlet of the water tank are fixedly connected with the connecting pipe；
Wherein, operate the hand pump water in the water tank can be passed sequentially through the connecting pipe, the high-pressure hose,
The connection short tube and the aperture are suppressed into the gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331300.6U CN209326910U (en) | 2019-03-15 | 2019-03-15 | Gate valve pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331300.6U CN209326910U (en) | 2019-03-15 | 2019-03-15 | Gate valve pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209326910U true CN209326910U (en) | 2019-08-30 |
Family
ID=67732856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920331300.6U Active CN209326910U (en) | 2019-03-15 | 2019-03-15 | Gate valve pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209326910U (en) |
-
2019
- 2019-03-15 CN CN201920331300.6U patent/CN209326910U/en active Active
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