CN209014222U - A kind of anhydrous work seal detection device of gate valve - Google Patents

A kind of anhydrous work seal detection device of gate valve Download PDF

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Publication number
CN209014222U
CN209014222U CN201821846267.2U CN201821846267U CN209014222U CN 209014222 U CN209014222 U CN 209014222U CN 201821846267 U CN201821846267 U CN 201821846267U CN 209014222 U CN209014222 U CN 209014222U
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Prior art keywords
valve
detection
pressure transmitter
gate valve
cap
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CN201821846267.2U
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Inventor
龙飞
邢武
高锋
郑勇
伍先达
曾威威
詹超
吴鹏
卜益军
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ANHUI ZHONGKE INTELLIGENT HI-TECH Co Ltd
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ANHUI ZHONGKE INTELLIGENT HI-TECH Co Ltd
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Abstract

A kind of anhydrous work seal detection device of gate valve, including detection gas circuit unit, closure unit and detection control unit;Wherein, the detection gas circuit unit includes the gas path pipe connection of gas source, intake valve, test valve, vent valve, differential pressure transmitter, pressure transmitter, intake valve, test valve, vent valve, differential pressure transmitter, pressure transmitter are electrically connected with detection control unit, to control the folding of each valve member and the signal of acquisition differential pressure transmitter, pressure transmitter;The closure unit includes the first closure end cap and the second closure end cap for being respectively used to block two exocoels of gate valve, and blocking end cap can be opened or be closed by detection control unit control, so that gate valve ends or connection.The utility model can realize the automatic detection of anhydrous external leakage, internal leakage leakproofness to the gate valve for forming separate cavities with double disc, be suitable for valve member anhydrous sealing detection automatic production line online, improve production efficiency, improve detection accuracy and consistency.

Description

A kind of anhydrous work seal detection device of gate valve
Technical field
The utility model relates to valve seal detection technique fields, and in particular to a kind of anhydrous work seal detection of gate valve Device.
Background technique
Important devices of the gate valve as connection or the truncation of the conveyance conduits such as gas, heat supply, sewage, sealing performance It is more demanding, especially for the gate valve for forming separate cavities with double disc, monoblock cast part is not required nothing more than without external leakage, is also wanted Ask the separate cavities formed in gate valve without internal leakage.Producers many for the leak detection that leaks of gate valve are using the water inspection for manually seeing bubble Method, some using pressure gauge see pressure decline, some using hydraulic measurement of discharge method, as number of patent application is 201410809793.1 " the online signal detecting equipment of gate valve ", individual large size valve member manufacturing enterprises are using conventional differential pressure air-tightness Detecting instrument detects.And for the current conventional instrument of leakage rate of internal leakage, that is, gate valve lumen to the both sides side chamber of gate valve without Method detects automatically.
Number of patent application 201711194463.6 " a kind of gate valve leak detection apparatus and pipe-line system " is examined using U-shaped pressure difference Survey lumen toward two side chambers leakage it is poor, number of patent application 2011103533841 " a kind of air-tightness detection device of gate valve ", be by Gate valve leaks through pipeline access sink and sees the method for bubble to detect the cut-off sealing performance of gate valve, is declined with pressure gauge and is determined Cavity leakproofness.Number of patent application 201810226433.7 " fixing ball valve sealing property detection device " is by three inspections of detection The pressure of mouth is surveyed to determine whether valve seat and the sealing ring on both sides on sphere, valve seat leak, the device is close in ball valve due to needing Detection hole is opened on seal attachment base, needs further to split ball valve, install, may be only available for the sizing examination to ball valve design It tests, is not applied for the sealing performance of on-line checking finished product valve member.
Utility model content
The utility model proposes a kind of anhydrous work seal detection device of gate valve, can solve traditional technology cannot achieve The technical issues of automatic and on-line checking Gate-valve sealing.
To achieve the above object, the utility model uses following technical scheme:
A kind of anhydrous work seal detection device of gate valve, be based on gate valve, the gate valve include double disc formed three every From chamber, A chamber, B chamber and C chamber, B chamber is located at centre, and handle, including detection gas circuit unit, closure unit and detection are arranged on gate valve Control unit;Wherein,
The detection gas circuit unit includes gas source and intake valve, and gas source is connected with intake valve pipe, further includes the first test valve With the second test valve, first test valve one end is connect with intake valve pipe, and the other end is connected to test input channel, the second test valve One end is connect with intake valve pipe, and the other end is connected to standard testing pipeline.
The delivery outlet sealing blocking of the standard testing pipeline.
The detection gas circuit unit further includes differential pressure transmitter and first pressure transmitter, differential pressure transmitter one end and test Input channel connection, the other end are connected to standard testing pipeline;First pressure transmitter is connected to test input channel.
The detection gas circuit unit further includes the first vent valve and the second vent valve, and first vent valve one end and test are defeated Enter pipeline connection, the other end is communicated with outer atmosphere;Second vent valve one end is connected to standard testing pipeline, the other end and outer atmosphere It communicates.
The detection gas circuit unit further includes that third test valve, third vent valve and second pressure transmitter, third are deflated Valve one end is communicated with third test valve, and one end is communicated with outer atmosphere;The other end of third test valve is connected with test output channel; Second pressure transmitter is connected on the pipeline between third test valve and third vent valve.
The closure unit includes the first closure end cap and second blocks end cap, and the first closure end cap is fixed in the first drive It takes offence on the output shaft of cylinder, described first, which blocks end cap, drives the A chamber for carrying out stretching motion and blocking gate valve by the first driving cylinder End face;Second closure end cap is fixed on the output shaft of the second driving cylinder, and second blocks end cap is driven by the second driving cylinder Carry out the C resonator end surface that stretching motion blocks gate valve;It is described first block cover internal setting pipeline respectively with test input channel It is connected to the A accent of gate valve, second blocks cover internal setting pipeline connects with the C accent of test output channel and gate valve respectively It connects;
The closure unit further includes the first drive magnetic valve and the second drive magnetic valve, the first drive magnetic valve and the One driving cylinder tube connection, the second drive magnetic valve are connect with the second driving cylinder tube;
The closure unit further includes motor, and the delivery outlet of motor is connected on the handle of gate valve by connector, electricity Machine output shaft rotational handle drives the B chamber of gate valve to move up and down, so that gate valve cut-off or connection;
The detection control unit and intake valve, the first test valve, the second test valve, differential pressure transmitter, first pressure become Send device, the first vent valve, the second vent valve, third test valve, second pressure transmitter, third vent valve, the first driving electromagnetism Valve, the second drive magnetic valve and motor are electrically connected.
As shown from the above technical solution, the utility model can realize the gate valve that separate cavities are formed with double disc anhydrous outer Leakage, the automatic detection of internal leakage leakproofness are suitable for valve member anhydrous sealing detection automatic production line online, improve life Efficiency is produced, detection accuracy and consistency are improved.
In conclusion the utility model has the beneficial effects that:
1) blocking unit by control driving detection gas circuit unit combination can disposably realize in after gate valve external leakage, cut-off Between the anhydrous on-line checking that is leaked to both sides of separate cavities.
2) by the way that an interface of the first differential pressure transmitter is led to atmosphere, differential pressure transmitter, which is converted to pressure transmitter, to be made With, significantly simplify detection gas circuit, saved cost.
3) pass through test input channel, the differential pressure transmitter on test output channel, pressure transmitter, control setting for valve member It sets and controls, realize to after gate valve cut-off, while detecting B chamber and leaking to A chamber and B chamber and leaking leakage rate to C chamber, be more in line with detection Code requirement, while also improving detection efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 101- gas source, 102- intake valve, 103- first test valve, 104- second tests valve, 105- differential pressure transporting Device, the first vent valve of 106-, the second vent valve of 107-, 108- first pressure transmitter, 109- third test valve, 110- second are pressed Power transmitter, 111- third vent valve, 112- test input channel, 113- standard testing pipeline, 114- test output channel, 2- Detection control unit, the first drive magnetic valve of 301-, the second drive magnetic valve of 302-, 303- first drive cylinder, 304- second Cylinder, 305- first is driven to block end cap, 306- second closure end cap, 307- motor, 4- gate valve, 401- handle.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.
Fig. 1 is the structural schematic diagram of the utility model embodiment, and solid line is tracheae connection, and dotted line is circuit connection, click and sweep Line is mechanical connection.
As shown in Figure 1, the anhydrous work seal detection device of gate valve described in the present embodiment, is based on gate valve 4, the gate valve 4 include that double disc forms three separate cavities, A chamber, B chamber and C chamber, and B chamber is located at centre, handle 401, including inspection are arranged on gate valve 4 It surveys gas circuit unit, detection control unit 2, block unit.
The gas source 101 of the detection gas circuit unit, intake valve 102, first test valve 103, second and test valve 104, the Three test valves 109, differential pressure transmitter 105, the first vent valve 106, the second vent valve 107, third vent valve 111, first pressure Transmitter 108, second pressure transmitter 110 are all connected by pipeline.
The intake valve 102, first of the detection control unit 2 and detection gas circuit unit tests valve 103, second and tests valve 104, third tests valve 109, differential pressure transmitter 105, the first vent valve 106, the second vent valve 107, third vent valve 111, the One pressure transmitter 108, second pressure transmitter 110 all pass through electrical connection.First vent valve 106, the second vent valve 107, Interface one end of three vent valves 111 is connect with the pipeline of Detection & Controling unit 2, and one end is deflated.It is connected with the second test valve 104 The 113 delivery outlet sealing blocking of standard testing pipeline connect.
The closure unit includes the first drive magnetic valve 301, the second drive magnetic valve 302, first driving cylinder 303, the second driving cylinder 304, first blocks end cap 305, second and blocks end cap 306, motor 307, the first drive magnetic valve 301, the second drive magnetic valve 302, first driving cylinder 303, second drives and is all connected by pipeline between cylinder 304.First It blocks end cap 305 to be fixed on the output shaft of the first driving cylinder 303, flexible fortune can be carried out by the first driving drive of cylinder 303 The dynamic A resonator end surface for blocking gate valve 4.Second closure end cap 306 is fixed on the output shaft of the second driving cylinder 304, can be by second It drives cylinder 304 to drive and carries out the C resonator end surface that stretching motion blocks gate valve 4.There is pipeline to be connected to inside first closure end cap 305 The A accent of input channel 112 and gate valve 4 is tested, has pipeline to be connected to test output channel 114 inside the first closure end cap 306 With the C accent of gate valve 4.The delivery outlet of motor 307 is connected on the handle 401 of gate valve 4 by connector, 307 output shaft of motor The handle 401 of gate valve 4 is driven to rotate, the B chamber of gate valve 4 moves up and down, so that the cut-off of gate valve 4 or connection.
The detection control unit 2 and block the first drive magnetic valve 301 in unit, the second drive magnetic valve 302, Motor 307 passes through electrical connection.
Wherein 102 be intake valve, is mainly responsible for the on-off of the gas source supply on federation road;106,107,111 be vent valve, is It is responsible for releasing the gas in pipeline;103,104,109 pipeline on-off action is only played.
105 for differential pressure transmitter be detect pipeline both sides pressure difference, 108 and 110 for pressure transmitter be detection pipeline Pressure change.
The utility model embodiment provides a kind of anhydrous work seal of gate valve that separate cavities are formed based on double disc simultaneously Detection device detects and controls step:
(1) starting device, detection control unit 2 drive the first drive magnetic valve 301, the movement of the second drive magnetic valve 302, So that the first driving cylinder 303, second drives 304 output shaft of cylinder that the first closure end cap 305, second is driven to block end cap respectively 306 movements, the A chamber and C resonator end surface of sealing blocking gate valve 4.
(2) intake valve 102, the first vent valve 106, the second vent valve 107, third are closed and tests valve 109, first is opened and surveys It tries valve 103, second and tests valve 104, third vent valve 111.
(3) driving motor 307 rotates forward so that A, B, C chamber of gate valve 4 are connected to.
(4) 102 air inlets are opened, when detection control unit 2, which detects first pressure transmitter 108, reaches setting pressure, are closed Close 102.
(5) it after balancing a period of time, closes the first test valve 103, second and tests valve 104, detection control unit 2 acquires difference The signal of pressure transmitter 105, and calculate leakage rate, the as leakage quantity that leaks of gate valve 4.
(6) driving motor 307 inverts, and gate valve 4 ends, so that tri- chamber of A, B, C is isolated, opens the first vent valve 106, second Vent valve 107, third test valve 109, discharge A chamber, C chamber gas.
(7) the first vent valve 106, third vent valve 111 are simultaneously closed off, while acquiring the first differential pressure transmitter 105, second Pressure transmitter 110, and calculate the leakage rate on both sides, respectively the B chamber of gate valve 4 are to A chamber, C chamber leakage rate.
(8) the first vent valve 106 and third vent valve 111 are opened, release leakage is defeated in test input channel 112, test Gas in pipeline 114 out.
(9) the first vent valve 106 and third vent valve 111 are closed, driving motor 307 rotates forward, so that A, B, C of gate valve 4 Chamber connection, acquires the signal of first pressure transmitter, calculates the B chamber residual compression of gate valve 4, to judge B chamber with the presence or absence of big leakage.
(10) it opens the first test valve 103, second and tests valve 104, the first vent valve 106, the second vent valve 107, third Vent valve 111 is deflated, the first drive magnetic valve 301 of driving, the movement of the second drive magnetic valve 302, so that the first driving cylinder 303, the second driving 304 output shaft of cylinder blocks end cap 305, second respectively away from first and blocks end cap 306, and test terminates.
In summary, the device of the utility model embodiment can realize nothing to the gate valve for forming separate cavities with double disc Leaked water leakage, the automatic detection of internal leakage leakproofness are suitable for valve member anhydrous sealing detection automatic production line online, improve Production efficiency, improves detection accuracy and consistency.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations;Although referring to aforementioned reality Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features;And these It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims (2)

1. a kind of anhydrous work seal detection device of gate valve is based on gate valve (4), the gate valve (4) includes that double disc forms three A separate cavities, A chamber, B chamber and C chamber, B chamber are located at centre, handle (401) are arranged on gate valve (4), it is characterised in that: including detection Gas circuit unit blocks unit and detection control unit (2);Wherein,
The detection gas circuit unit includes gas source (101) and intake valve (102), and gas source (101) is connected with intake valve (102) pipe, It further include the first test valve (103) and the second test valve (104), first tests valve (103) one end and intake valve (102) Guan Lian It connects, the other end is connected to test input channel (112), and first pressure transmitter is connected on the test input channel (112) (108);Second test valve (104) one end is connect with intake valve (102) pipe, and the other end connects standard testing pipeline (113), described The delivery outlet sealing blocking of standard testing pipeline (113);
The detection gas circuit unit further includes differential pressure transmitter (105), the first vent valve (106) and the second vent valve (107), poor Pressure transmitter (105) is connect with the first vent valve (106) and the second vent valve (107) pipe respectively, the differential pressure transmitter (105) It is connected to respectively with standard testing pipeline (113) with the second vent valve (107), the differential pressure transmitter (105) and the first vent valve (106) it is also connected to respectively with test input channel (112);
The detection gas circuit unit further includes testing valve (109), second pressure transmitter by the third that pipeline is interconnected (110) and third vent valve (111);
The closure unit includes that the first closure end cap (305) and second block end cap (306), and first blocks end cap (305) The A resonator end surface for carrying out stretching motion and blocking gate valve (4) is controlled by detection control unit (2);Second blocks end cap (306) by detecting Control unit (2) control carries out the C resonator end surface that stretching motion blocks gate valve (4);Described first blocks setting inside end cap (305) Pipeline is connected to the A accent of test input channel (112) and gate valve (4) respectively, and second blocks setting pipeline inside end cap (306) It is connect respectively with the C accent of test output channel (114) and gate valve (4), the test output channel (114) is also tested with third Valve (109) connection;
The closure unit further includes motor (307), and the delivery outlet of motor (307) is connected to gate valve (4) by connector On handle (401), motor (307) output shaft rotational handle (401) drives the B chamber of gate valve (4) to move up and down, so that gate valve (4) Cut-off or connection;
The detection control unit (2) and intake valve (102), the first test valve (103), the second test valve (104), differential pressure transporting Device (105), the first vent valve (106), the second vent valve (107), first pressure transmitter (108), third test valve (109), Second pressure transmitter (110), third vent valve (111) and motor (307) are electrically connected.
2. the anhydrous work seal detection device of gate valve according to claim 1, it is characterised in that:
Described first, which blocks end cap (305), is fixed on the output shaft of the first driving cylinder (303), and described first blocks end cap (305) the A resonator end surface for carrying out stretching motion and blocking gate valve (4) is driven by the first driving cylinder (303);Second blocks end cap (306) it is fixed on the output shaft of the second driving cylinder (304), second blocks end cap (306) by second driving cylinder (304) band The dynamic C resonator end surface for carrying out stretching motion and blocking gate valve (4);
The closure unit further includes the first drive magnetic valve (301) and the second drive magnetic valve (302), the first driving electromagnetism Valve (301) is connect with first driving cylinder (303) pipe, the second drive magnetic valve (302) and second driving cylinder (304) Guan Lian It connects;
First drive magnetic valve (301) and the second drive magnetic valve (302) are electrically connected with the detection control unit (2) respectively It connects.
CN201821846267.2U 2018-11-09 2018-11-09 A kind of anhydrous work seal detection device of gate valve Active CN209014222U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821846267.2U CN209014222U (en) 2018-11-09 2018-11-09 A kind of anhydrous work seal detection device of gate valve

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Application Number Priority Date Filing Date Title
CN201821846267.2U CN209014222U (en) 2018-11-09 2018-11-09 A kind of anhydrous work seal detection device of gate valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110319981A (en) * 2019-08-15 2019-10-11 郭颂 A kind of valve manufactures leakproofness general detection device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110319981A (en) * 2019-08-15 2019-10-11 郭颂 A kind of valve manufactures leakproofness general detection device and method

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