CN204064591U - The vertical automatic pressure test device of heat collector runner - Google Patents
The vertical automatic pressure test device of heat collector runner Download PDFInfo
- Publication number
- CN204064591U CN204064591U CN201420443914.0U CN201420443914U CN204064591U CN 204064591 U CN204064591 U CN 204064591U CN 201420443914 U CN201420443914 U CN 201420443914U CN 204064591 U CN204064591 U CN 204064591U
- Authority
- CN
- China
- Prior art keywords
- heat collector
- pressure
- collector runner
- water
- test device
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses the vertical automatic pressure test device of a kind of heat collector runner, comprise support, be arranged on the control box of support side, described support at least comprises a test station, waterflood system and pressure charging system is provided with in described control box, by waterflood system and pressure charging system simultaneously to water filling in heat collector runner, substantially reduce the working time of booster water pump, decrease energy consumption, wearing and tearing, and " choking with resentment " phenomenon can eliminated in heat collector runner, outlet pipeline have employed electrical ball valve or other can the valve of slowly closing, eliminate water hammer.Adopt rational method for designing, water filling when making pressure testing, supercharging, pressurize, the several operation of pressure release can reliably fully automatic operation, " interruption " function is added in circuit design, if namely find to leak at water filling, supercharging, packing stage, " interruption " button can be pressed after determining leaking area, system enters at once " pressure release " stage, shortens system operation time, improves work efficiency.
Description
Technical field
The utility model relates to a kind of for whether there being the pressure testing machine leaking and check to pipeline, more particularly, relates to a kind of for whether there being the vertical automatic pressure test device leaking and check to heat collector runner.
Background technology
Heat collector runner is the vitals of flat-plate solar collector, and heat collector runner and absorber plate form the collector plate core of flat-plate solar collector.Heat collector runner forms by collector with the some combs that collector welds mutually, the heat collector runner be welded by collector and some combs needs to check, hold plate with suction again after determining No leakage and be assembled into collector plate core, thus the quality of flat-plate solar collector is effectively guaranteed.Otherwise, if leak making the quality of flat-plate solar collector have a greatly reduced quality because heat collector runner exists, even cannot use, being unfavorable for the product percent of pass improving flat-plate solar collector, also bringing huge loss to user.
At present, in sun power industry, the pressure testing of heat collector runner adopts manual type in the majority, and small part adopts pressure testing equipment.Artificial pressure testing exists that labour intensity is large, workman's fatiguability, cost of labor are high, pressure test pressure and dwell time all cannot ensure for a long time, and easily security incident and product quality accident occur, this kind of mode belongs to superseded ranks already.In view of all drawbacks of artificial pressure testing, Some Enterprises has manufactured experimently pressure testing equipment, but this kind equipment has problems due to during design, causes reliability extreme difference, even if so sun power industry has developed into industry in large scale, but this kind equipment still there is no extensive popularization.Mainly there is following defect in the vertical pressure testing equipment being conventionally used to heat collector runner:
There is " water hammer " problem in the vertical pressure testing equipment 1, being conventionally used to heat collector runner, easily causes damage to the pipeline of the vertical pressure testing equipment of heat collector runner and pipe fitting, have a strong impact on the serviceable life of equipment.
2, the vertical pressure testing equipment being conventionally used to heat collector runner can only by pressure piping to water filling in heat collector runner, the flow flowed in heat collector runner is little, water injection time is long, considerably increase working time and the wearing and tearing of booster water pump, and causing the time required for pressure testing long, the work pressure test efficiency of equipment is low.
If 3, find to leak at water filling, supercharging, packing stage, pressure release can not be carried out in time, interrupt pressure testing process, extend operation hours, the inefficiency of equipment pressure testing.
4, the vertical pressure testing equipment being conventionally used to heat collector runner can only by pressure piping to water filling in heat collector runner, flow in input heat collector runner is little, the water filling stage can not ensure that outlet pipeline full-section pipe-flow goes out current, cause exhaust not smooth, the problem of " choking with resentment " is there is in heat collector runner, water discharging valve on outlet pipeline is closed, water can not be injected due on the position that the generation of problem in heat collector runner of choking with resentment " is choked with resentment ", and water filling pressure testing is carried out in the position cannot choked with resentment to this generation, there is leakage and cannot be examined out in the position that this generations some are choked with resentment, greatly reduce the reliability of pressure test leak-detecting.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect of the prior art, a kind of problem of water hammer can eliminated in the vertical pressure testing equipment of heat collector runner is provided, thus extend the serviceable life of the vertical pressure testing equipment of heat collector runner, significantly can improve the work efficiency of the vertical pressure testing equipment of heat collector runner and the reliability of pressure test leak-detecting, be convenient to the vertical automatic pressure test device of heat collector runner that subsequent handling carries out assembling product.
For achieving the above object, the technical scheme that provides of the utility model is as follows:
The vertical automatic pressure test device of a kind of heat collector runner, comprise support, be arranged on the control box of support side, described support at least comprises a test station, described test station has the first drive unit be installed on support, second drive unit, water supply connector, water out adapter, first sealing adaptor and the second sealing adaptor, described water supply connector or the first sealing adaptor and the first drive unit are in transmission connection, described water out adapter or the second sealing adaptor and the second drive unit are in transmission connection, also comprise be installed in control box and with the waterflood system of the inlet pipeline parallel communication of this water supply connector and pressure charging system and with the outlet pipeline being installed in water out adapter on can the valve of slowly closing for what eliminate water hammer.
Described waterflood system comprises the water injecting pipeline be connected with inlet pipeline, and be installed in the first solenoid valve on water injecting pipeline and the first retaining valve, water injecting pipeline is connected with the inlet pipeline of water supply connector.
Described pressure charging system comprises reserve tank, the pressure piping be connected with reserve tank, and be installed in the booster water pump on pressure piping and the second retaining valve, pressure piping is connected with the inlet pipeline of water supply connector.
Also comprise a controller, be installed in the pressure transducer on the inlet pipeline of described water supply connector, be installed in the supervising device on the outlet pipeline of water out adapter, the signal input part of controller is connected with pressure transducer and supervising device communication, the signal output part of controller and described booster water pump, the first solenoid valve and can the valve communication of slowly closing be connected.
As what preferentially select, in the technical scheme of the vertical automatic pressure test device of above-mentioned heat collector runner, the inlet pipeline of described water supply connector is equiped with the first threeway, the interface that water supply connector, waterflood system and pressure charging system are corresponding in the first threeway is respectively connected.
As what preferentially select, in the technical scheme of the vertical automatic pressure test device of above-mentioned heat collector runner, described water injecting pipeline is equiped with the second threeway, the inlet pipeline of reserve tank is connected with this second threeway, and the inlet pipeline being positioned at the reserve tank of reserve tank is equiped with ball-cock assembly.
As what preferentially select, in the technical scheme of the vertical automatic pressure test device of above-mentioned heat collector runner, the outlet pipeline of described water out adapter is equiped with the tensimeter for showing the pressure in heat collector runner.
Furthermore, in the technical scheme of the vertical automatic pressure test device of above-mentioned heat collector runner, the bottom of described reserve tank is equiped with blowdown apparatus, this blowdown apparatus is by the blow-off pipe be connected with reserve tank, the second solenoid valve be installed on blow-off pipe is formed, and the second solenoid valve is connected with controller communication.
Furthermore, described support is also provided with the control hand valve of control first drive unit and the second drive unit.
Compared with prior art, the beneficial effects of the utility model are: by installing at least one test station on support, this test station has the first drive unit be installed on support, second drive unit, water supply connector, water out adapter, first sealing adaptor and the second sealing adaptor, described water supply connector or the first sealing adaptor and the first drive unit are in transmission connection, described water out adapter or the second sealing adaptor and the second drive unit are in transmission connection, also comprise be installed in control box and with the waterflood system of the inlet pipeline parallel communication of this water supply connector and pressure charging system and with the outlet pipeline being installed in water out adapter on can the valve of slowly closing for what eliminate water hammer.The water filling stage can simultaneously by waterflood system and pressure charging system to the water filling of heat collector runner, substantially reduce the time of water filling, large discharge water inlet is quicker, easily the air of heat collector runner is thoroughly discharged, eliminate in heat collector runner, produce the problem of choking with resentment, significantly can improve the work efficiency of the vertical pressure testing equipment of heat collector runner and the reliability of pressure test leak-detecting; Outlet pipeline adopts can the valve of slowly closing, thus weakens and even eliminate water hammer, thus extends the serviceable life of the vertical pressure testing equipment of heat collector runner.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the vertical automatic pressure test device of heat collector described in the utility model;
Fig. 2 is the three-dimensional structure diagram of the vertical automatic pressure test device embodiment one of single station heat collector described in the utility model;
Fig. 3 is the three-dimensional structure diagram of the vertical automatic pressure test device embodiment two of double heat collector described in the utility model.
Below in conjunction with drawings and Examples, the three-dimensional automatic pressure test device of heat collector runner described in the utility model is described further.
Embodiment
Be below the preferred example of the three-dimensional automatic pressure test device of heat collector runner described in the utility model, therefore do not limit protection domain of the present utility model.
Embodiment one
Please refer to Fig. 1 and Fig. 2, Fig. 1 and Fig. 2 shows the vertical automatic pressure test device of a kind of single station heat collector runner, comprise support 1, be installed in the control box 20 of support 1 side, support 1 is provided with a test station 21, described test station 21 comprises the first drive unit 2 be installed on support 1, second drive unit 3, water supply connector 4, water out adapter 5, first sealing adaptor 22 and the second sealing adaptor 23, first drive unit 2 in this enforcement, second drive unit 3 adopts cylinder, certain also available hydraulic cylinder or the device adopting servomotor and screw mandrel etc. can realize straight line back and forth movement substitute, described first sealing adaptor 22 and the first drive unit 2 are in transmission connection, described water out adapter 5 and the second drive unit 3 are in transmission connection, also comprise be installed in control box 20 and with the waterflood system 7 of the inlet pipeline parallel communication of this water supply connector 4 and pressure charging system 8, and be installed on the outlet pipeline of water out adapter 5 can the valve 9 of slowly closing, in the present embodiment, this can the valve 9 of slowly closing be electrical ball valve, also fluid automatic controlling valve can be used, multifunctional water pump control valves etc. can the device of slowly closing, system pipeline can be carried out stably when closing supercharging, thus weaken even except water hammer, improve the reliability of system, guarantee that equipment energy long-time stable uses.
Certainly, water supply connector 4 and the first drive unit 2 also can be adopted to be in transmission connection, the second sealing adaptor 23 and two drive units 3 are in transmission connection.
When heat collector runner is arranged on test station, first drive unit 2 and the second drive unit 3 advance, heat collector runner is compressed, thus the water inlet making water supply connector 4, water out adapter 5, first sealing adaptor 22 corresponding to heat collector runner respectively with the second sealing adaptor 23 or water delivering orifice are tightly connected.
When unloading heat collector runner, the first drive unit 2 and the second drive unit 3 retreat, and heat collector runner is unclamped, then is unloaded by heat collector runner.
In the present embodiment, waterflood system 7 comprises the water injecting pipeline 71 be connected with inlet pipeline, be installed in the first solenoid valve 72 and the first retaining valve 73 on water injecting pipeline 71, in order to control waterflood system 7 and anti-backflow, waterflood system 7 is connected with the inlet pipeline of water supply connector 4; Pressure charging system 8 comprises reserve tank 81, the pressure piping 82 be connected with reserve tank 81, and be installed in the booster water pump 83 on pressure piping 82 and the second retaining valve 84, pressure piping 82 is connected with the inlet pipeline of water supply connector 4.
In this enforcement, a controller 13 is also provided with in described control box 20, control box 20 is provided with the control panel 201 be connected with controller 13 communication, control panel 201 is provided with " power switch ", " power lights ", " blowdown ", " interruption ", " pressurize lamp ", function button and display lamps such as " startups ", the inlet pipeline of described water supply connector 4 is equiped with pressure transducer 10, the signal input part of controller 13 is connected with pressure transducer 10 communication, the signal output part of controller 13 and described booster water pump 83, first solenoid valve 72 with can valve 9 communication of slowly closing be connected.
Preferably, the inlet pipeline of described water supply connector 4 is also provided with the first threeway 15, waterflood system 7, pressure charging system 8 and water supply connector 4 are connected with corresponding interface respectively.
Preferably, the water injecting pipeline 71 of described waterflood system 7 is provided with the second threeway 14, the inlet pipeline of reserve tank 81 is connected with this second threeway 14, the inlet pipeline being positioned at the reserve tank 81 of reserve tank 81 is equiped with ball-cock assembly 85, when the water level in reserve tank 81 reaches setting value, ball-cock assembly 85 is closed, and stops adding water in reserve tank 81.
Preferably, the outlet pipeline of described water out adapter 5 is also equiped with the tensimeter 18 for showing pressure in heat collector runner, the pressure in heat collector runner is can be observed by tensimeter 18, display can also be set on control box 20, by controller 13, pressure transducer 10 is detected that signal outputs on display to show, also can observe the pressure in heat collector runner.
The outlet pipeline of water out adapter 5 is also equiped with for judging whether water lines is the supervising device 51 that full-section pipe-flow goes out current, this supervising device 51 is connected with the signal input end communication of controller 13, in the present embodiment, this supervising device 51 uses flow detector, when flow detector detects that outlet pipeline reaches maximum flow, by signal transmission to controller 13, then controller 13 export that control signal makes can valve 9 slowly closing of slowly closing, certainly with other, this supervising device 51 also can judge that the water lines device whether full-section pipe-flow goes out current substitutes, as the time relay, this time relay with can valve 9 communication of slowly closing be connected, need to measure the minimum time needed when outlet pipeline reaches full packages flowing water by experiment, during relay service time, the time parameter of the time relay should be set to be more than or equal to this minimum time, certainly, also can with time condenser arrange simultaneously can slowly closing valve 9 close time and the required dwell time, when water injection time reaches the time of time relay setting, now outlet pipeline flows out with full packages water, the time relay sends signal, can the valve 9 of slowly closing close, enter pressurization stages, after packing stage reaches the dwell time set by the time relay, the time relay controls the valve 9 of slowly closing to open and carry out pressure release.
The bottom of reserve tank 81 is also equiped with blowdown apparatus 19, and this blowdown apparatus 19 is by the blow-off pipe 191 be connected with reserve tank 81, and the second solenoid valve 192 be installed on blow-off pipe 191 is formed, and the second solenoid valve 192 is connected with controller 13 communication.
Furthermore, described support is also provided with the control hand valve 6 of control first drive unit 2 and the second drive unit 3, control the first drive unit 2 and the second drive unit by controlling hand valve 6, the first drive unit 2 and the second drive unit 3 also can be controlled by controller 13 automatically.
When adopting the vertical automatic pressure test device of above-mentioned heat collector runner to carry out pressure testing to heat collector runner, comprise water filling, supercharging, pressurize, interrupt, pressure release double teacher, when starting working, the artificial control hand valve 6 that passes through makes two cylinders drive the first sealing adaptor 22, second sealing adaptor 23 lifts, manually heat collector runner is put in pressure testing district, heat collector collector end opening aims at water supply connector 4 respectively, second sealing adaptor 23, suitable for readingly aim at the first sealing adaptor 22 respectively, water out adapter 5, two cylinders are controlled the first sealing adaptor 22 again by controlling hand valve 6, water out adapter 5 falls compression collector, confirm without after deflection, access power supply, press " power switch ", " power lights " now on control panel 201 can light.
One, water filling, press " startup " button on control panel 201, controller 13 start signal output booster water pump 83 also opens the first solenoid valve 72, pressure charging system 8 and waterflood system 7 are simultaneously to water filling in heat collector runner, enter the water filling stage, when flow detector detects that outlet pipeline goes out current with full-section pipe-flow, controller 13 outputs signal control electrical ball valve 9 and cuts out, and electrical ball valve 9 is closed with slow speed to eliminate water hammer;
Two, supercharging, controller 13 first outputs signal and the first solenoid valve 72 cuts out, waterflood system 7 stops water filling, pressure charging system 8 continues water filling in heat collector runner, enter pressurization stages, set required pressure test pressure by controller 13, when the pressure that pressure transducer 10 detects in heat collector runner reaches the pressure test pressure of setting, controller 13 output signal makes booster water pump 83 quit work, and pressure charging system 8 stops water filling in heat collector runner;
Three, pressurize, dwell time required for setting, enter packing state, whether " pressurize lamp " now on control panel can light, and simultaneously can check whether leak everywhere, and observe pressure in heat collector runner by tensimeter 18 and reduce, if heat collector runner is without leaking, then skip to the 5th step, if heat collector runner leaks, then then perform the 4th step;
Four, interrupt, press " interruption " button on control panel 201, directly outputed signal by controller 13 and control the valve 9 of slowly closing to open and carry out pressure release, pressure drop in heat collector runner, unload this heat collector runner, then this heat collector runner is underproof heat collector runner;
Five, pressure release, after reaching set dwell time, " pressurize lamp " closes automatically, controller 13 outputs signal and controls the valve 9 of slowly closing to open and carry out pressure release, pressure drop in heat collector runner, unloads this heat collector runner, then this heat collector runner is qualified heat collector runner.
After Long-Time Service, dirt, impurity is had in reserve tank 81, can by pressing " blowdown " button on control panel 201, the second solenoid valve 192 opened on blow-off pipe 191 by controller 13 carries out blowdown, this key is pressed again after removing contamination, the resilience of " blowdown " button, controller 13 controls the second solenoid valve 192 and cuts out.
Embodiment two
A kind of double heat collector runner vertical automatic pressure test device has been shown in Fig. 3, only need many installing test battery stations 21 on support 1, waterflood system 7 and the pressure charging system 8 of a set of and newly-increased test station 21 inlet pipeline parallel communication are set in control box more, described waterflood system 7, pressure charging system 8 shares a reserve tank 81 to save space, two cover test stations 21 are provided with separately the tensimeter 18 of independently detected pressures, pressure transducer 10, and judged water lines on outlet pipeline be whether full-section pipe-flow go out current supervising device 51 and can the valve 9 of slowly closing, can by control panel 201 by the separate work of key control two cover system, other structures are identical with embodiment one, repeat no more.
Above-described embodiment is the utility model preferably embodiment; but embodiment of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (7)
1. the vertical automatic pressure test device of heat collector runner, comprise support (1), be arranged on the control box (20) of support (1) side, it is characterized in that: described support (1) at least comprises test station (21), described test station (21) has the first drive unit (2) be installed on support (1), second drive unit (3), water supply connector (4), water out adapter (5), first sealing adaptor (22) and the second sealing adaptor (23), described water supply connector (4) or the first sealing adaptor (22) are in transmission connection with the first drive unit (2), described water out adapter (5) or the second sealing adaptor (23) are in transmission connection with the second drive unit (3), also comprise be installed in control box (20) and with the waterflood system (7) of the inlet pipeline parallel communication of this water supply connector (4) and pressure charging system (8) and with the outlet pipeline being installed in water out adapter (5) on can the valve (9) of slowly closing for what eliminate water hammer,
Described waterflood system (7) comprises the water injecting pipeline (71) be connected with inlet pipeline, be installed in the first solenoid valve (72) on water injecting pipeline (71) and the first retaining valve (73), water injecting pipeline (71) is connected with the inlet pipeline of water supply connector (4);
Described pressure charging system (8) comprises reserve tank (81), the pressure piping (82) be connected with reserve tank (81), be installed in the booster water pump (83) on pressure piping (82) and the second retaining valve (84), pressure piping (82) is connected with the inlet pipeline of water supply connector (4);
Also comprise a controller (13), be installed in the pressure transducer (10) on the inlet pipeline of described water supply connector (4), the signal input part of controller (13) is connected with pressure transducer (10) communication, the signal output part of controller (13) and described booster water pump (83), the first solenoid valve (72) and can valve (9) communication of slowly closing be connected.
2. the vertical automatic pressure test device of heat collector runner according to claim 1, it is characterized in that: the inlet pipeline of described water supply connector (4) is equiped with the first threeway (15), water supply connector (4), waterflood system (7) and pressure charging system (8) respectively corresponding interface upper with the first threeway (15) are connected.
3. the vertical automatic pressure test device of heat collector runner according to claim 1, it is characterized in that: described water injecting pipeline (71) is equiped with the second threeway (14), the inlet pipeline of reserve tank (81) is connected with this second threeway (14), and the inlet pipeline being positioned at the reserve tank (81) of reserve tank (81) is equiped with ball-cock assembly (85).
4. the vertical automatic pressure test device of heat collector runner according to claim 1, is characterized in that: the outlet pipeline of described water out adapter (5) is equiped with the tensimeter (18) for showing the pressure in heat collector runner.
5. the vertical automatic pressure test device of heat collector runner according to claim 1, it is characterized in that: the outlet pipeline of described water out adapter (5) is equiped with for monitoring the outlet pipeline supervising device (51) whether full packages flows out, this supervising device (51) is connected with the signal input part communication of controller (13).
6. the vertical automatic pressure test device of heat collector runner according to claim 1, it is characterized in that: the bottom of described reserve tank (81) is equiped with blowdown apparatus (19), this blowdown apparatus (19) is by the blow-off pipe (191) be connected with reserve tank (81), the second solenoid valve (192) be installed on blow-off pipe (191) is formed, and the second solenoid valve (192) is connected with controller (13) communication.
7. the vertical automatic pressure test device of heat collector runner according to claim 1, is characterized in that: the control hand valve (6) described support (1) being also provided with control first drive unit (2) and the second drive unit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420443914.0U CN204064591U (en) | 2014-08-07 | 2014-08-07 | The vertical automatic pressure test device of heat collector runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420443914.0U CN204064591U (en) | 2014-08-07 | 2014-08-07 | The vertical automatic pressure test device of heat collector runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204064591U true CN204064591U (en) | 2014-12-31 |
Family
ID=52206079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420443914.0U Expired - Fee Related CN204064591U (en) | 2014-08-07 | 2014-08-07 | The vertical automatic pressure test device of heat collector runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204064591U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180955A (en) * | 2014-08-07 | 2014-12-03 | 广东五星太阳能股份有限公司 | Heat collector channel vertical type automatic pressure testing machine |
| CN109738276A (en) * | 2019-02-21 | 2019-05-10 | 洛阳双瑞金属复合材料有限公司 | A kind of backwash filter Withstand test device and test method |
-
2014
- 2014-08-07 CN CN201420443914.0U patent/CN204064591U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180955A (en) * | 2014-08-07 | 2014-12-03 | 广东五星太阳能股份有限公司 | Heat collector channel vertical type automatic pressure testing machine |
| CN109738276A (en) * | 2019-02-21 | 2019-05-10 | 洛阳双瑞金属复合材料有限公司 | A kind of backwash filter Withstand test device and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202939022U (en) | Service life testing device for energy-saving air water valves | |
| CN101598624B (en) | High-efficiency high pressure gas leak detection method | |
| CN101672748B (en) | 400MPa super-high pressure fatigue test device and test method | |
| CN102352957B (en) | Electronic grade ultra pure ammonia automatic filling device and method | |
| CN104165739B (en) | Method for testing pressure by adoption of vertical and automatic heat collector flow channel pressure test machine | |
| CN204064591U (en) | The vertical automatic pressure test device of heat collector runner | |
| CN111257121B (en) | Automatic testing system for hydrostatic test | |
| CN105890845B (en) | Pipeline high strength and tightness test tool and method | |
| CN104165731B (en) | The horizontal automatic pressure test device of heat collector runner | |
| CN206920297U (en) | A kind of mortar impermeability automatic detection device | |
| CN209394615U (en) | Band gas is changed the shuttle valve tooling | |
| CN103123311A (en) | Device used for detecting pressure resistance of ceramic tube | |
| CN210833985U (en) | Automatic pressure stabilizer for water discharge after low-temperature strain strengthening storage tank water pressure | |
| CN203587338U (en) | Pressure switch service life detection tooling | |
| CN104180954B (en) | Method for testing pressure of horizontal automatic pressure testing machine by use of heat collector channel | |
| CN202994395U (en) | Die water passage seepage detection apparatus | |
| CN202691597U (en) | Residual air treatment device | |
| CN114323497B (en) | Clamp for testing sealing performance of pipe plug, system and method for testing sealing performance of pipe plug | |
| CN104180955A (en) | Heat collector channel vertical type automatic pressure testing machine | |
| CN204142432U (en) | The horizontal automatic pressure test device of heat collector runner | |
| CN202614594U (en) | Double-station air pressure testing table | |
| CN202994384U (en) | Die string passage seepage detection apparatus | |
| CN113310681A (en) | Testing device and testing method for hydraulic self-driven quick-closing isolating valve | |
| CN112798427A (en) | Automatic pressure testing system for water pressure of coiled pipe | |
| CN114184332A (en) | Automatic inflation and deflation sealing detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20170807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |