CN205209702U - Rail vehicle tee bend ball valve cold resistance's simulation detection device - Google Patents

Rail vehicle tee bend ball valve cold resistance's simulation detection device Download PDF

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Publication number
CN205209702U
CN205209702U CN201520894596.4U CN201520894596U CN205209702U CN 205209702 U CN205209702 U CN 205209702U CN 201520894596 U CN201520894596 U CN 201520894596U CN 205209702 U CN205209702 U CN 205209702U
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China
Prior art keywords
ball valve
air
tee ball
tensimeter
rail vehicle
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CN201520894596.4U
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Chinese (zh)
Inventor
夏春晶
王云霄
王金田
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CRRC Changchun Railway Vehicles Co Ltd
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Changchun Railway Vehicles Co Ltd
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Abstract

Rail vehicle tee bend ball valve cold resistance's simulation detection device belongs to the simulation detection device field of rail vehicle tee bend ball valve gas tightness under low temperature environment, the device is when building and simulating the high and cold environment of being surveyed the tee bend ball valve through the lowtemperature cabinet, the compressed air heat transfer that still will test usefulness through the inside condenser pipe of lowtemperature cabinet becomes the cooling air of same temperature, the actual conditions that accord with severe cold district with the testing ring border of ensureing to be surveyed the tee bend ball valve completely, its low temperature gas tightness test result is accurate, reliabl, can not receive any intensification influence and disturb, in order to stop the potential safety hazard. In addition, the device still introduces earlier, draws forth the lowtemperature cabinet through the compressed air that usefulness will be tested to many pipelines to lowtemperature cabinet two outside manometers are monitored into through lieing in respectively, the pressure differential of air -out pipeline changes, from this, have avoided operating personnel for a long time in the inside operation of chilly lowtemperature cabinet, also offer convenience for wind regime device, manometer etc. Lie in the maintenance work of low temperature external device under normal atmospheric temperature simultaneously.

Description

The analoging detecting device of rail vehicle tee ball valve cold tolerance
Technical field
The utility model belongs to rail vehicle tee ball valve bubble-tight analoging detecting device field at low ambient temperatures, is specifically related to a kind of analoging detecting device of rail vehicle tee ball valve cold tolerance.
Background technology
The rail vehicle run at extremely frigid zones for a long time has a lot of special purpose device, and the tee ball valve wherein with higher cold-resistant grade is exactly a kind of special vitals in its brake system.Because low temperature environment easily causes the leakage of tee ball valve inner seal member, and cause the Pneumatic component on train braking system malfunctioning, even serious threat traffic safety.For this reason, for this type of cold-resistant higher grade train special three-way ball valve except the test of dispatching from the factory of producer, also need specially the test of simulating under cold environment to be carried out to its impermeability and check and accept.
Existing cold environment simulation test scheme be first tee ball valve to be tested is placed on carry out in the low temperature environments such as refrigerator freezing, when reaching chilling temperature and the time of regulation, ball valve after freezing is taken out, and test its impermeability as early as possible at normal temperatures: make the straight-through inlet end of tested tee ball valve and straight-through endpiece be in the pass-through state often opened, and make the threeway endpiece of tee ball valve be in normally closed off state, then, normal temperature compressed air is connected in the straight-through inlet end of tested tee ball valve, and the pipeline be connected with threeway endpiece is submerged in water, whether there is bubble to come up by observation and threeway endpiece connecting line and judge whether the threeway endpiece under its normally off exists leakage.
But, the temperature that pressurized air due to normal room temperature environment and normal temperature all accelerates tested ball valve raises, it can cause originally just may being recovered its original normal air-tightness rapidly in the short period of time by freezing seal member, cause this class testing not accurate enough and reliable, therefore it cannot react this tested ball valve true impermeability at low ambient temperatures authentic and validly, meanwhile, the traffic safety when test result of mistake runs also to train under psychro-environment has buried risk hidden danger.
Utility model content
In order to solve existing still will to be transferred to by freezing tee ball valve under normal temperature environment and to carry out simulating the air tightness test under low temperature environment to it with normal temperature compressed air time, originally just its original normal air-tightness may be recovered rapidly in the short period of time by freezing seal member, cause this class testing not accurate enough and reliable, this tested ball valve true impermeability at low ambient temperatures cannot be reacted authentic and validly, the test result of its mistake has buried the technical matters of risk hidden danger can to the traffic safety of train, the utility model provides a kind of analoging detecting device of rail vehicle tee ball valve cold tolerance.
The technical scheme that the utility model technical solution problem is taked is as follows:
The analoging detecting device of rail vehicle tee ball valve cold tolerance of the present utility model, comprises air source apparatus, air intake stainless-steel tube, device for drying and filtering, air intake tensimeter, cryogenic box, spiral cold-finger, gas-holder, outlet air end tensimeter, threeway test lead stainless-steel tube, air tank pressure gauge lead-in wire steel pipe, basin and rubber hose; The straight-through inlet end of described air source apparatus, air intake stainless-steel tube, device for drying and filtering, air intake tensimeter, spiral cold-finger and tested tee ball valve connects in turn, and the straight-through endpiece of tested tee ball valve, gas-holder, air tank pressure gauge lead-in wire steel pipe are connected in turn with outlet air end tensimeter; Threeway endpiece, the threeway test lead stainless-steel tube of tested tee ball valve are connected in turn with rubber hose; The end of rubber hose is placed in basin.
Described air source apparatus, device for drying and filtering, air intake tensimeter, outlet air end tensimeter, basin and rubber hose are all positioned at the outside of cryogenic box; Described spiral cold-finger, gas-holder and tested tee ball valve are all positioned at the inside of cryogenic box; Described air intake stainless-steel tube, threeway test lead stainless-steel tube and air tank pressure gauge lead-in wire steel pipe is all through the wall box of cryogenic box; The interface of its three pipelines and cryogenic box 5 sidewall is equipped with sealing thermal insulation packed layer.
The volume of described gas-holder is 2.5L, and cryogenic box is volume 23m 3reefer, its cryogenic temperature continuously adjustabe in the scope of-60 DEG C to 100 DEG C; Spiral cold-finger is copper spiral pipe.
The beneficial effects of the utility model are: the analoging detecting device of this rail vehicle tee ball valve cold tolerance is when building and simulate the psychro-environment of tested tee ball valve by cryogenic box, also by the condenser pipe of cryogenic box inside, the pressurized air heat exchange of test is become the cooling air of same temperature, to guarantee that the test environment of tested tee ball valve meets the actual conditions of extremely frigid zones completely, its low temperature airtightness test result accurately, reliably, any intensification impact and interference can not be subject to, to stop potential safety hazard.In addition, this device is also first introduced by the pressurized air of many pipelines by test, is drawn cryogenic box again, and change respectively by the pressure reduction of two the tensimeter monitoring outlet and inlet pipelines being positioned at cryogenic box outside, thus, avoid operating personnel for a long time at the cryogenic box inside processing of cold, also offer convenience for air source apparatus, tensimeter etc. are positioned at lower-temperature external device maintenance work at normal temperatures simultaneously.
In addition the analoging detecting device of this rail vehicle tee ball valve cold tolerance also has simple and practical, easy to operate, with low cost, is convenient to advantages such as popularizing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the analoging detecting device of the utility model rail vehicle tee ball valve cold tolerance.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
As shown in Figure 1, the analoging detecting device of rail vehicle tee ball valve cold tolerance of the present utility model comprises air source apparatus 1, air intake stainless-steel tube 2, device for drying and filtering 3, air intake tensimeter 4, cryogenic box 5, spiral cold-finger 6, gas-holder 9, outlet air end tensimeter 10, threeway test lead stainless-steel tube 11, air tank pressure gauge lead-in wire steel pipe 13, basin 12 and rubber hose 7.
The straight-through inlet end 8-1 of air source apparatus 1, air intake stainless-steel tube 2, device for drying and filtering 3, air intake tensimeter 4, spiral cold-finger 6 and tested tee ball valve 8 connects in turn, and the straight-through endpiece 8-2 of tested tee ball valve 8, gas-holder 9, air tank pressure gauge lead-in wire steel pipe 13 are connected in turn with outlet air end tensimeter 10.Threeway endpiece 8-3, the threeway test lead stainless-steel tube 11 of tested tee ball valve 8 are connected in turn with rubber hose 7.The end of rubber hose 7 is placed in basin 12.
Air source apparatus 1, device for drying and filtering 3, air intake tensimeter 4, outlet air end tensimeter 10, basin 12 and rubber hose 7 are all positioned at the outside of cryogenic box 5.
Spiral cold-finger 6, gas-holder 9 and tested tee ball valve 8 are all positioned at the inside of cryogenic box 5.
Air intake stainless-steel tube 2, threeway test lead stainless-steel tube 11 and air tank pressure gauge lead-in wire steel pipe 13 is all through the wall box of cryogenic box 5, and the interface of its three pipelines and cryogenic box 5 sidewall is equipped with sealing thermal insulation packed layer.
The volume of gas-holder 9 is 2.5L, and cryogenic box 5 is volume 23m 3reefer, its cryogenic temperature continuously adjustabe in the scope of-60 DEG C to 100 DEG C.Spiral cold-finger 6 is copper spiral pipe.
During the analoging detecting device of embody rule the utility model rail vehicle tee ball valve cold tolerance, first open the hatch door of cryogenic box 5, tested ball valve is correctly arranged in this analoging detecting device by the mode shown in Fig. 1, more again the hatch door of cryogenic box 5 is closed and sealing.Then in basin 12, enough soap lather water is loaded, and below the liquid level end of rubber hose 7 being immersed in completely soap foam water.
After this, start cryogenic box 5 and start refrigeration, reach default test-40 DEG C when the instruction of its temperature and keep at least 30 minutes.Now, tested tee ball valve 8 is to merge completely with the temperature environment in cryogenic box 5, and its temperature is also-40 DEG C.
Open the air compressor machine as air source apparatus 1, its pressurized air, along filtration and dry process first through device for drying and filtering 3, then enters cryogenic box 5 through air intake stainless-steel tube 2 inner, and enters spiral cold-finger 6.-40 DEG C of sub-cooled wind are become through condensed pressurized air.This sub-cooled wind flows through the straight-through inlet end 8-1 of tested tee ball valve 8 and straight-through endpiece 8-2 in turn, finally enters gas-holder 9.
The instruction reading of continuous observation and contrast air intake tensimeter 4 and outlet air end tensimeter 10, reach stable both it, then illustrate that the test pressure of sub-cooled wind meets the requirements, the difference both simultaneously observing, and record, confirm leakage rate.Whether the end observing rubber hose 7 in now basin 12 has bubble to produce.If there is no bubble, then illustrate that current tested tee ball valve 8 still keeps impermeability good under simulated high and cold low temperature environment, meet the rigors that this products application environment proposes it, can specification product be considered as.
The analoging detecting device of rail vehicle tee ball valve cold tolerance of the present utility model significantly improves the precision of test result, and ensures the accurate and reliable of tested ball valve true air tightness test result at low ambient temperatures, and stops potential safety hazard thus.

Claims (3)

1. the analoging detecting device of rail vehicle tee ball valve cold tolerance, is characterized in that: this device comprises air source apparatus (1), air intake stainless-steel tube (2), device for drying and filtering (3), air intake tensimeter (4), cryogenic box (5), spiral cold-finger (6), gas-holder (9), outlet air end tensimeter (10), threeway test lead stainless-steel tube (11), air tank pressure gauge lead-in wire steel pipe (13), basin (12) and rubber hose (7);
The straight-through inlet end (8-1) of described air source apparatus (1), air intake stainless-steel tube (2), device for drying and filtering (3), air intake tensimeter (4), spiral cold-finger (6) and tested tee ball valve (8) connects in turn, and the straight-through endpiece (8-2) of tested tee ball valve (8), gas-holder (9), air tank pressure gauge lead-in wire steel pipe (13) are connected in turn with outlet air end tensimeter (10); Threeway endpiece (8-3), the threeway test lead stainless-steel tube (11) of tested tee ball valve (8) are connected in turn with rubber hose (7); The end of rubber hose (7) is placed in basin (12).
2. the analoging detecting device of rail vehicle tee ball valve cold tolerance as claimed in claim 1, is characterized in that: described air source apparatus (1), device for drying and filtering (3), air intake tensimeter (4), outlet air end tensimeter (10), basin (12) and rubber hose (7) are all positioned at the outside of cryogenic box (5);
Described spiral cold-finger (6), gas-holder (9) and tested tee ball valve (8) are all positioned at the inside of cryogenic box (5);
Described air intake stainless-steel tube (2), threeway test lead stainless-steel tube (11) and air tank pressure gauge lead-in wire steel pipe (13) are all through the wall box of cryogenic box (5), and the interface of its three pipelines and cryogenic box 5 sidewall is equipped with sealing thermal insulation packed layer.
3. the analoging detecting device of rail vehicle tee ball valve cold tolerance as claimed in claim 1, it is characterized in that: the volume of described gas-holder (9) is 2.5L, cryogenic box (5) is volume 23m 3reefer, its cryogenic temperature continuously adjustabe in the scope of-60 DEG C to 100 DEG C; Spiral cold-finger (6) is copper spiral pipe.
CN201520894596.4U 2015-11-11 2015-11-11 Rail vehicle tee bend ball valve cold resistance's simulation detection device Active CN205209702U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520894596.4U CN205209702U (en) 2015-11-11 2015-11-11 Rail vehicle tee bend ball valve cold resistance's simulation detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520894596.4U CN205209702U (en) 2015-11-11 2015-11-11 Rail vehicle tee bend ball valve cold resistance's simulation detection device

Publications (1)

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CN205209702U true CN205209702U (en) 2016-05-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105258863A (en) * 2015-11-11 2016-01-20 长春轨道客车股份有限公司 Simulation detection apparatus of railway-vehicle 3-way ball valve cold resistance performance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105258863A (en) * 2015-11-11 2016-01-20 长春轨道客车股份有限公司 Simulation detection apparatus of railway-vehicle 3-way ball valve cold resistance performance

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GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 130062 Jilin province Changchun city green yam Road No. 435

Patentee after: CRRC CHANGCHUN RAILWAY VEHICLES CO., LTD.

Address before: 130062 Jilin province Changchun city green yam Road No. 435

Patentee before: Changchun Track Passenger Train Co., Ltd.

CP01 Change in the name or title of a patent holder