CN104776986B - Safety valve performance testing device - Google Patents
Safety valve performance testing device Download PDFInfo
- Publication number
- CN104776986B CN104776986B CN201410018352.XA CN201410018352A CN104776986B CN 104776986 B CN104776986 B CN 104776986B CN 201410018352 A CN201410018352 A CN 201410018352A CN 104776986 B CN104776986 B CN 104776986B
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- Prior art keywords
- safety valve
- gas
- interface
- connection
- valve
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- Expired - Fee Related
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- Safety Valves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of safety valve performance testing device, including host computer, data collecting system, signal conditioning circuit, power circuit, gas pressure sensor, safety valve, source of the gas, check valve, the first three-way connection, the second three-way connection and air accumulator.The present invention is controlled and test core with host computer as system, user operates testing system software, host computer sends control signal, by data collecting system and signal conditioning circuit, the pressure signal that pressure sensor is detected is fed back into host computer, testing system software judges whether the performance of safety valve is normal according to feedback signal.The safety valve fixture of use can be according to differences such as test object size, structure, interfaces, flexibly change, and to the strong adaptability of test product, and system architecture is simple, and low cost of manufacture is easy to operate, and stable performance, intelligence degree is high.
Description
Technical field
The present invention relates to a kind of test device, more particularly to a kind of safety valve performance testing device.
Background technology
Safety valve is a kind of safeguard protection valve, and its opening and closing element is in normally off by external force effect is lower, when equipment or
Pressure medium in pipeline is raised, and is automatically turned on during more than setting, by preventing pipeline to discharge medium outside system or setting
Standby interior pressure medium exceedes specified value.Safety valve belongs to automatic valve class, is mainly used on boiler, pressure vessels and pipes, control
Pressing pressure is no more than setting, and important protective effect has been run to personal safety and equipment.
Safety valve is safety attachment important in boiler, pressure vessel and other equipment that are stressed, and answers running check, is allowed to
It is safe and reliable.Its Reliability of Microprocessor and performance quality be directly connected to equipment and the person safety, and with energy-conservation and environmental protection
It is closely related.So the present invention is all inventing a kind of easy and effective test system for safety valve.
The content of the invention
A kind of purpose of the present invention, in that solve the above problems, there is provided safety valve performance testing device.
The object of the present invention is achieved like this：A kind of safety valve performance testing device, including host computer, data acquisition system
System, signal conditioning circuit, power circuit, gas pressure sensor, safety valve, source of the gas, check valve, the first three-way connection, second
Three-way connection and air accumulator；Host computer is bi-directionally connected with data collecting system, and signal conditioning circuit is two-way with data collecting system
Connection, power circuit is electrically connected with signal conditioning circuit, and gas pressure sensor is telecom-connected with signal conditioning circuit, gas pressure
The gas feed of force snesor connects the first interface of the first three-way connection, the second interface connection check valve of the first three-way connection
Outlet, the 3rd interface of the first three-way connection connects the first interface of the second three-way connection, and the second of the second three-way connection connects
Mouth connection safety valve, the 3rd interface connection air accumulator of the second three-way connection, source of the gas connects the import of check valve.
Also include safety valve fixture, the safety valve is placed on safety valve fixture.
The host computer and data collecting system are connected by that serial ports is connected, usb bus connection or pci bus are connected.
The data collecting system has analog input AD, analog output DA, digital quantity input DI and digital quantity defeated
Go out DO functions.
The power circuit provides 24V, 12V and 5V DC voltage, respectively signal conditioning circuit, gas pressure sensor
Power supply.
The source of the gas is sphygmomanometer Manual inflating capsule or air pump.
Operation principle of the invention is：Host computer is connected with data collecting system, sends control signal, receives gas pressure
Sensor feedback signal, carries out detection performance and judges；Signal conditioning circuit respectively with data collecting system, power circuit, gas
Pressure sensor connection, wherein power circuit are supplied to alternating voltage, DC voltage for each device；Safety valve and pressure sensor
It is connected by the first three-way connection, when bleed pressure is excessive, when safety valve is pushed up out, feedback signal is atmospheric pressure, works as safety valve
When not opened by top, gas pressure sensor is communicated with air accumulator, and feedback signal is reservoir pressure signal；Test data preserve to
Host computer, and interacted with operator by man-machine interface.
The present invention have it is structurally simple, economical, it is easy to operate, the characteristics of test result is accurate, it is adaptable to the property of safety valve
Can test, for system design, parts type selecting, Product checking provide foundation.
Brief description of the drawings
Fig. 1 is the electrical structure schematic diagram of safety valve performance testing device of the present invention；
Fig. 2 is pneumatic circuit schematic diagram of the invention；
Fig. 3 is the working procedure flow chart of apparatus of the present invention；
Fig. 4 is the structural representation of safety valve fixture.
Specific embodiment
Referring to Fig. 1, Fig. 2, safety valve performance testing device of the present invention, including host computer 1, data collecting system 2, signal are adjusted
Reason circuit 3, power circuit 4, gas pressure sensor 5, safety valve 6, source of the gas 7, check valve 8, the first three-way connection the 9, the 2nd 3
Pass joint 10 and air accumulator 11.Wherein, host computer is bi-directionally connected with data collecting system, signal conditioning circuit and data acquisition system
System is bi-directionally connected, and power circuit is electrically connected with signal conditioning circuit, and gas pressure sensor is telecom-connected with signal conditioning circuit,
The gas feed of gas pressure sensor connects the first interface of the first three-way connection, the second interface connection of the first three-way connection
The outlet of check valve, the 3rd interface of the first three-way connection connects the first interface of the second three-way connection, the second three-way connection
Second interface connection safety valve, the 3rd interface connection air accumulator of the second three-way connection, source of the gas connects the import of check valve.
Also include safety valve fixture 12, above-mentioned safety valve 6 is placed on safety valve fixture.
The structure of safety valve fixture 12 is as shown in figure 4, including base 121,122, motion bar 123 of operating a switch, valve body gas interface
124 and 125, valve body support seat 126 and slide bar 127 are constituted.Operate a switch and be fixed on base, operate a switch with valve body gas interface 124 by living
Lever 123 is connected, and swinging for operating a switch can be moved left and right with moving valve gas port interface 124 on slide bar 127, and operates a switch 122
Can be linked closely fixation；Valve body gas interface 125 is arranged on base with slide bar 127；Valve body support seat 126 can on slide bar 127 level
It is mobile.Safety valve 6 is lain in a horizontal plane in valve body support seat 126, mobile valve support seat connects the right-hand member air inlet of safety valve
Enter valve body gas interface 125, swing the position of 122 adjustment valve body gas interfaces 124 of operating a switch, and valve body gas interface 124 is withstood peace
The adjusting nut of full valve left end.After two ends and the valve body gas interface 124,125 of safety valve are closely connected, link closely and operate a switch 122,
Safety valve is just consolidated and is closely connected in pneumatic circuit.
Host computer in the present invention and data collecting system be connected by serial ports be connected, usb bus connection or pci bus
Connection.
Data collecting system in the present invention has analog input AD, analog output DA, digital quantity input DI sums
Word amount exports DO functions.
Power circuit in the present invention provides 24V, 12V and 5V DC voltage, respectively signal conditioning circuit, gas pressure
Sensor power.
Source of the gas in the present invention is sphygmomanometer Manual inflating capsule or air pump.
Fig. 3 is the working procedure flow chart of apparatus of the present invention, and the course of work of the invention is：After system electrification, system from
Every initial parameter is read in program, initialization is waited " startup ", selects start button, enters into test page.Source of the gas is beaten
Gas, gas pressure sensor real-time detection airline pressure, when the pressure limit that pressure is limited beyond safety valve, sees that safety valve is
No timely opening, if sensor feedback signal is changed into atmospheric pressure, illustrates that safety valve is opened in time, judges that safe valve performance is closed
Lattice, if feedback signal is still airline pressure, illustrate that safety valve could not be opened, and judge that safe valve performance is unqualified.
Claims (5)
1. a kind of safety valve performance testing device, it is characterised in that：Including host computer, data collecting system, signal conditioning circuit,
Power circuit, gas pressure sensor, safety valve, source of the gas, check valve, the first three-way connection, the second three-way connection and air accumulator；
Host computer is bi-directionally connected with data collecting system, and signal conditioning circuit is bi-directionally connected with data collecting system, power circuit with letter
Number modulate circuit electrical connection, gas pressure sensor is telecom-connected with signal conditioning circuit, and the gas of gas pressure sensor enters
The first interface of mouth the first three-way connection of connection, the second interface of the first three-way connection connects the outlet of check valve, the first threeway
The first interface of the 3rd interface second three-way connection of connection of joint, the second interface connection safety valve of the second three-way connection, the
The 3rd interface connection air accumulator of two three-way connections, source of the gas connects the import of check valve；
Also include safety valve fixture, the safety valve is placed on safety valve fixture；
Safety valve fixture include base, operate a switch, motion bar, valve body gas interface, valve body support seat and slide bar, operate a switch and be fixed on base
On, to operate a switch and connected by motion bar with valve body gas interface, swinging for operating a switch can the left and right shifting on slide bar with moving valve gas interface
It is dynamic, and the fixation that can link closely of operating a switch；Valve body gas interface is arranged on base with slide bar；Valve body support seat level can be moved on slide bar
It is dynamic.
2. safety valve performance testing device according to claim 1, it is characterised in that：The host computer and data acquisition system
Be connected by serial ports connection, usb bus connection or the pci bus of system are connected.
3. safety valve performance testing device according to claim 1, it is characterised in that：The data collecting system has mould
Analog quantity input AD, analog output DA, digital quantity input DI and digital output DO functions.
4. safety valve performance testing device according to claim 1, it is characterised in that：The power circuit offer 24V,
12V and 5V DC voltages, respectively signal conditioning circuit, gas pressure sensor are powered.
5. safety valve performance testing device according to claim 1, it is characterised in that：The source of the gas is beaten manually for sphygmomanometer
Air bag or air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018352.XA CN104776986B (en) | 2014-01-15 | 2014-01-15 | Safety valve performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018352.XA CN104776986B (en) | 2014-01-15 | 2014-01-15 | Safety valve performance testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104776986A CN104776986A (en) | 2015-07-15 |
| CN104776986B true CN104776986B (en) | 2017-06-23 |
Family
ID=53618595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410018352.XA Expired - Fee Related CN104776986B (en) | 2014-01-15 | 2014-01-15 | Safety valve performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104776986B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100540308B1 (en) * | 2002-12-27 | 2006-01-11 | 한전기공주식회사 | Apparatus for a test of leakage of presser safety valve and pressure setting up |
| CN201397248Y (en) * | 2009-03-30 | 2010-02-03 | 北京市弗米特测试技术研究所 | Portable safety valve tester |
| CN201788084U (en) * | 2010-08-19 | 2011-04-06 | 杭州沃镭科技有限公司 | Pneumatic electromagnetic valve comprehensive performance detecting device based on PC control |
| CN103196660A (en) * | 2012-01-10 | 2013-07-10 | 浙江大学 | Multistation computer test system facing multitandem valves |
| CN103162956B (en) * | 2013-04-12 | 2015-06-17 | 中国测试技术研究院电子研究所 | Method and system for detecting comprehensive performance of pneumatic brake four circuit protection valve |
| CN203672610U (en) * | 2014-01-15 | 2014-06-25 | 上海理工大学 | Safety valve performance testing apparatus |
-
2014
- 2014-01-15 CN CN201410018352.XA patent/CN104776986B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104776986A (en) | 2015-07-15 |
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| C06 | Publication | ||
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| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170623 Termination date: 20200115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |