CN201589710U - Testing calibration stand for testing overflow quantity of emergency trip valve - Google Patents
Testing calibration stand for testing overflow quantity of emergency trip valve Download PDFInfo
- Publication number
- CN201589710U CN201589710U CN2009202773992U CN200920277399U CN201589710U CN 201589710 U CN201589710 U CN 201589710U CN 2009202773992 U CN2009202773992 U CN 2009202773992U CN 200920277399 U CN200920277399 U CN 200920277399U CN 201589710 U CN201589710 U CN 201589710U
- Authority
- CN
- China
- Prior art keywords
- valve
- pipeline
- testing
- emergency trip
- water tank
- 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
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a testing calibration stand for testing overflow quantity of an emergency trip valve. The testing calibration stand has the structural characteristics that the lower part of a water tank is connected with a water pump through a pipeline; the other end of the water pump is connected with a pipeline; an electromagnetic flowmeter, a pressure gauge, an overflow valve with the other end connected with the water tank, a stop valve and an emergency trip valve to be tested are connected on the pipeline in sequence; the tail end of the pipeline is inserted at the upper part of the water tank; and a network paperless recording instrument with measuring, display, storage and other functions is connected to the electromagnetic flowmeter. The utility model can accurately test the technical performance indicators of the emergency trip valve when leaving factories, and regularly test the over-current protection function of the emergency trip valve, thereby guaranteeing the product quality and the using function of the emergency trip valves, avoiding the occurrence of safety accidents and ensuring the safety of railway tank cars during liquid gas transportation. The testing calibration stand has the advantages of simple structure, convenient use, safety and reliability due to the adoption of water substituting dangerous medium, economy and environmental protection.
Description
One, technical field
The utility model relates to a kind of flow verification calibration equipment of valve, especially a kind of over-flow checking table of emergency cut-off valve.
Two, background technology
In recent years, tank car because of the problems such as structure, setting and connected mode of tank car safety attachment cause the incident of dielectric leakage to happen occasionally, causes potential safety hazard to transportation by railroad in conveying liquified gas process.Be effectively to solve the potential safety hazard that tank car exists, guarantee that tank car in conveying liquified gas process safe, transforms the liquid phase quick action emergency valve of tank car, make the liquid phase quick action emergency valve must have the overcurrent limitation function.Both when take place situation velocity of medium such as piping failure too fast, when rate-of flow is above standard flow, the unsteady flap of quick action emergency valve will be closed automatically, avoids accident to take place.And whether maximum flow when closing with the unsteady flap that detects quick action emergency valve also of no use at present surpasses the checking device of state specified standards flow; carry out the technical indicator service check and the overcurrent protection function of periodic inspection quick action emergency valve in use in the time of can't dispatching from the factory to quick action emergency valve; do not guarantee the product quality and the functions of use of this valve, security incident still takes place easily.
Three, summary of the invention
In order to solve the deficiencies in the prior art, the purpose of this utility model provides a kind of over-flow checking table of emergency cut-off valve, maximum flow when being used for detecting quick action emergency valve and closing the automatically flow that whether is above standard is to satisfy the requirement of tank car safe transport medium in conveying liquified, gas process.
Realize that the technical scheme that the purpose of this utility model adopts is: this over-flow checking table of emergency cut-off valve is mainly taken into account the network recording instrument without paper by water tank, water pump, pipeline, surplus valve, tensimeter, Electromagnetic Flow and is formed; The bottom of water tank is connected with water pump by pipeline, and the other end of water pump is connected to pipeline, is connected to surplus valve, stop valve and the detected quick action emergency valve of electromagnetic flowmeter, tensimeter, other end water receiving case on the pipeline successively, and the tail end of pipeline inserts the top of water tank; Be connected to the network recording instrument without paper of functions such as having measurement, demonstration, storage on the electromagnetic flowmeter.
During detection, in water tank, inject 1/2～3/4 water, install the quick action emergency valve that needs detection, and make it be in closed condition; Open the flap of the emergency cut-off part of quick action emergency valve with the pressurization of the oil hand pump on the quick action emergency valve, start water pump and make its work, the tensimeter of observing on the pipeline makes its pressure stability when 0.5～0.6Mpa left and right sides, opens stop valve and guides medium into tested quick action emergency valve; Open the upper ball valve of quick action emergency valve then gradually, flow rises thereupon, closes voluntarily to the unsteady flap of quick action emergency valve, writes down the maximum flow of moment when closing from electromagnetic flowmeter, obtains detected data.
The beneficial effects of the utility model are: the flow of whole process when using this checking table and can test quick action emergency valve and close from being opened to; technical performance index in the time of can accurately checking out quick action emergency valve to dispatch from the factory; and the overcurrent protection function of energy periodic inspection quick action emergency valve; the product quality and the functions of use of this valve have been guaranteed; avoided the generation of security incident, guaranteed that tank car is in conveying liquified gas process safe.This checking table also can be used for the overcurrent protection check of liquid gas truck tank quick action emergency valve.Owing to inserted the network recording instrument without paper, can accomplish on-the-spot demonstration and can show in the pulpit again, the store recording function is arranged again simultaneously, utilize internal memory and the external memory media can the long-time data of more reliable preservation, pass through USB interface, can be saved in data on the USB storage, can arrive PC to data transmission easily by USB storage.When needs are searched the quick action emergency valve test data sheet, can open computer at any time, just can find the flow rate test record of valve.Can be used for the test of periodic inspection quick action emergency valve inflow-rate of water turbine defencive function.This checking table is simple in structure, easy to use, and water replaces danger medium, reduces hazardous medium and leaks, and is safe and reliable, economic environmental protection.
Four, description of drawings
Fig. 1 is the structure connection layout of the utility model over-flow checking table of emergency cut-off valve.
Five, embodiment
In the accompanying drawings, the main water tank of the utility model over-flow checking table of emergency cut-off valve, water pump, pipeline, surplus valve, tensimeter, Electromagnetic Flow are taken into account network recording instrument without paper composition; The bottom of water tank 1 is connected with water pump 2 by pipeline 3, the other end of water pump 2 is connected to pipeline 3, be connected to surplus valve 7, stop valve 8 and the detected quick action emergency valve 9 of electromagnetic flowmeter 4, tensimeter 6, other end water receiving case 1 on the pipeline 3 successively, the tail end of pipeline 3 inserts the top of water tank 1; Be connected on the electromagnetic flowmeter 4 have measurement, the network recording instrument without paper 5 of function such as demonstration, storage.
During detection, in water tank, inject 1/2～3/4 water, install the quick action emergency valve that needs detection, and make it be in closed condition; Open the flap of the emergency cut-off part of quick action emergency valve with the pressurization of the oil hand pump on the quick action emergency valve, start water pump and make its work, the tensimeter of observing on the pipeline makes its pressure stability when 0.5～0.6Mpa left and right sides, open stop valve and guide medium into tested quick action emergency valve, the speed of opening stop valve should be slow and constant; (speed of opening ball valve should be slow, in order to avoid phenomenon is closed in the excessive appearance of pressure reduction too early before and after the overcurrent limiting valve to open the upper ball valve of quick action emergency valve then gradually.), flow rises to the unsteady flap of quick action emergency valve thereupon and closes voluntarily, writes down the maximum flow of moment when closing from electromagnetic flowmeter, obtains detected data.The unsteady flap permissible variation of turn-off transient maximum flow voluntarily is ± 10%, exceeds this scope and should adjust until qualified.Revision test three times, flow all should be in allowed band.
This checking table can detect the inflow-rate of water turbine that the nominal bore is the quick action emergency valve of DN50 and two kinds of specifications of DN65, at present the automobile-used quick action emergency valve of liquefied gas tank is commonly used also has only this two kinds of specifications, also can increase the product of other specification according to the demand in market.This checking table uses water as test(ing) medium, can test quick action emergency valve from being opened to the flow of the whole process before closing.The network recording instrument without paper 5 that picks out on the described electromagnetic flowmeter 4 has measurement, show, functions such as storage, it is the DX1000 new network recording instrument without paper that Japanese Yokogawa company produces, can accomplish on-the-spot demonstration and can show in the pulpit again, the store recording function is arranged again simultaneously, utilize internal memory and the external memory media can the long-time data of more reliable preservation, pass through USB interface, can be saved in data on the USB storage, can arrive PC to data transmission easily by USB storage, when needs are searched the quick action emergency valve test data sheet, can open computer at any time, just can find the flow rate test record of valve.
Described quick action emergency valve belongs to combined valve, it by the band that directly contacts with medium the emergency cut-off valve portion of flow restriction and the ball valve on top partly combine, quick action emergency valve is the gas-liquid phase valve of the main gateway of liquid gas storage and transportation equipment, when the loading and unloading material, at first by force emergency cut-off is partially opened, manually top ball valve is opened again and loaded and unloaded material by oil hand pump.When situations such as generation piping failures, rate-of flow surpasses rated flow, and the unsteady flap of emergency cut-off part can be closed automatically.So-called overcurrent protection is exactly in the medium cargo handling process, and when media flow speed surpassed permissible value, this device can be closed automatically, makes the media flow speed control below permissible value.Thereby quick action emergency valve is one of requisite safety attachment of train tank car.
This checking table should be put water only, and inlet is sealed in the long-term storage process, is strictly on guard against that dirt enters, and should leave dry ventilate indoor in, does not allow outdoor storage.Should check when reusing whether each instrument and equipment is intact errorless.
Claims (2)
1. over-flow checking table of emergency cut-off valve, main water tank, water pump, pipeline, surplus valve, tensimeter, Electromagnetic Flow are taken into account the network recording instrument without paper and are formed; It is characterized in that: the bottom of described water tank (1) is connected with water pump (2) by pipeline (3), the other end of water pump (2) is connected to pipeline (3), be connected to surplus valve (7), stop valve (8) and the detected quick action emergency valve (9) of electromagnetic flowmeter (4), tensimeter (6), other end water receiving case (1) on the pipeline (3) successively, the tail end of pipeline (3) inserts the top of water tank (1).
2. over-flow checking table of emergency cut-off valve as claimed in claim 1 is characterized in that: be connected on the described electromagnetic flowmeter (4) have measurement, the network recording instrument without paper (5) of function such as demonstration, storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202773992U CN201589710U (en) | 2009-12-31 | 2009-12-31 | Testing calibration stand for testing overflow quantity of emergency trip valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202773992U CN201589710U (en) | 2009-12-31 | 2009-12-31 | Testing calibration stand for testing overflow quantity of emergency trip valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201589710U true CN201589710U (en) | 2010-09-22 |
Family
ID=42749497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202773992U Expired - Fee Related CN201589710U (en) | 2009-12-31 | 2009-12-31 | Testing calibration stand for testing overflow quantity of emergency trip valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201589710U (en) |
-
2009
- 2009-12-31 CN CN2009202773992U patent/CN201589710U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108760279B (en) | Harsh working condition valve test device capable of monitoring valve torque and sealing | |
| CN206556857U (en) | A kind of online safety valve testing system | |
| CN110207976A (en) | A kind of automobile-used breather valve intelligent type comprehensive test device of oil tank | |
| CN101750225A (en) | Over-flow checking table of emergency cut-off valve | |
| CN201589710U (en) | Testing calibration stand for testing overflow quantity of emergency trip valve | |
| CN102445299A (en) | Closed fluid-resistance comprehensive tester for oil gas recovery system of gas station | |
| CN201662597U (en) | Fluid pipeline electrostatic measuring device | |
| CN102928175A (en) | Discharge oil gas recycling effect test system and discharge oil gas recycling effect test method | |
| CN206410828U (en) | Electrical equipment special container sealing property detection system | |
| CN205909851U (en) | Transformer stores up blocking detector of oil tank respirator | |
| CN201837564U (en) | Calibration device for low-temperature gas bottle safety valve | |
| CN204829290U (en) | Be applied to two devices of breathing freely that end among boats and ships inert gas pipe -line system | |
| CN207336053U (en) | A kind of low-temperature safety valve performance detecting system | |
| CN204201465U (en) | The quantitative charging device of liquefied chlorine cistern car | |
| CN203397707U (en) | Security defending system for nuclear power station | |
| CN205981658U (en) | Protected against explosion vehicular safety valve operating test device | |
| CN205261210U (en) | LNG loading sledge integrated device | |
| CN113504016A (en) | Device and method for detecting sealing performance of transformer conservator capsule | |
| CN202676411U (en) | Detector for sealing property of gas pipeline | |
| CN206270035U (en) | A kind of safety valve for pressure pipeline detecting system | |
| CN206830427U (en) | The low discharge measurement apparatus of 1000MW reactor coolant pumps sealing leakage | |
| CN221004740U (en) | Natural gas pipeline broken pipe protection system with pressure drop rate detection device | |
| CN106198231B (en) | Piston type air entraining substation long-tube trailer rupture disk fatigue test device | |
| CN216243605U (en) | Remote information type natural gas detection pipeline | |
| CN219161875U (en) | LPG gas cylinder fatigue test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20111231 |