CN212646338U - Automatic device for valve hydrostatic test - Google Patents
Automatic device for valve hydrostatic test Download PDFInfo
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- CN212646338U CN212646338U CN202021430470.9U CN202021430470U CN212646338U CN 212646338 U CN212646338 U CN 212646338U CN 202021430470 U CN202021430470 U CN 202021430470U CN 212646338 U CN212646338 U CN 212646338U
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Abstract
The utility model discloses a valve hydrostatic test's automatics, including sealing device, control box, forcing pipe, water tank, blast pipe and water-drain mast, sealing device's upper end is provided with the exhaust hole, be provided with the blast pipe between exhaust hole and the water tank, be provided with first solenoid valve on the blast pipe, sealing device's lower extreme is provided with the pressurization hole, be provided with the forcing pipe between pressurization hole and the water tank, pressure sensor, flowmeter and force (forcing) pump have set gradually by pressurization hole to water tank on the forcing pipe, still be provided with the water-drain mast between pressure sensor and the pressurization hole, in the water tank is stretched into to the other end of water-drain mast, still be provided with the second solenoid valve on the water-drain mast, first solenoid valve, the second solenoid valve, pressure sensor, the flowmeter, the force. This automatics is after fixing the test valve, by control box control test process, finally obtains whether qualified result of test valve, and in this process, the timing is accurate, and the test result judges accurately.
Description
Technical Field
The utility model relates to a valve hydrostatic test equipment technical field, concretely relates to valve hydrostatic test's automatics.
Background
According to the design standard of the valve, a hydraulic pressure strength test needs to be carried out on each newly produced valve. In the prior art, the devices for hydrostatic testing of valves are generally: the blind plate is arranged at one end of the valve, the other end of the valve is connected with the water pump for pressurization, manual timing is carried out when the pressure reaches the test pressure, and after the hydrostatic test timing is completed, the leakage is observed at the positions of the valve shell, the packing and the sealing surface of the valve clack, so that whether the hydrostatic test of the valve is qualified or not is judged. When the device is used for carrying out the hydrostatic test, the problems of inaccurate timing and easy error in leakage observation exist, and therefore the result of the hydrostatic test is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the simulation provides a valve hydrostatic test's automatics, can avoid in the hydrostatic test process timing inaccurate, the easy error condition when still preventing to appear observing the seepage simultaneously.
Therefore, the utility model discloses the technical scheme who adopts does: an automatic device for a valve hydrostatic test comprises a sealing device, a first electromagnetic valve, a control box, a pressure pipe, a pressure sensor, a flowmeter, a pressure pump, a second electromagnetic valve, a water tank, an exhaust pipe and a water drain pipe, wherein an exhaust hole is formed in the upper end of the sealing device and connected with one end of the exhaust pipe;
the pressure pipe is provided with a pressure sensor, a flowmeter and a pressure pump in sequence from a pressure hole to a water tank, a water drain pipe is further arranged between the pressure sensor and the pressure hole, the other end of the water drain pipe extends into the water tank, a second electromagnetic valve is further arranged on the water drain pipe, and the first electromagnetic valve, the second electromagnetic valve, the pressure sensor, the flowmeter and the pressure pump are electrically connected with the control box.
Preferably, the sealing device comprises a rotating hand wheel, a pressing connecting rod, an upper cross rod, a supporting slide rod, an upper pressing disc, a supporting chassis, a quick connector and a base, wherein the upper cross rod and the supporting slide rod form a portal frame, the portal frame is installed on the base, the supporting chassis is fixedly arranged on the upper surface of the base, the supporting chassis is arranged in the supporting slide rod, and a pressurizing hole is formed in the middle of the supporting chassis; the upper pressing disc is arranged below the upper cross rod and is in sliding connection with the supporting slide rod, the exhaust hole is formed in the middle of the upper pressing disc and is upwards protruded, the exhaust hole is connected with the exhaust pipe through a quick connector, the pressing connecting rod is arranged on the upper pressing disc and is in threaded connection with the upper pressing disc, the pressing connecting rod upwards penetrates through the upper cross rod and is provided with a rotating hand wheel, the pressing connecting rod is in threaded connection with the upper cross rod, and when the rotating hand wheel is rotated, the pressing connecting rod is driven to rotate upwards or downwards relative to the upper cross rod, so that the upper pressing disc can slide up and down along the supporting slide rod.
Preferably, the lower surface of the upper pressure disc and the upper surface of the supporting chassis are both provided with sealing rubber, so that the sealing effect at two ends of the valve is improved, and the leakage of the valve can only flow out along the pressure hole.
Further preferably, the exhaust pipe and the water drain pipe extend into the water tank and are located above the water surface, the pressurizing pipe directly extends into the position below the water surface, and the upper cover of the water tank is made of transparent materials, so that whether water in the pipeline is emptied or not can be observed conveniently.
The utility model has the advantages that: compared with the traditional hydrostatic test, the automatic device has the advantages that after the test valve is fixed, the test process is controlled by the control box, and finally the result of whether the test valve is qualified is obtained, so that the timing is accurate, and meanwhile, the test result is judged accurately; the automatic device has simple integral structure and lower cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
shown in combination 1, the automatic device for the valve hydrostatic test mainly comprises a sealing device, a first electromagnetic valve 1, a control box 2, a pressurization pipe 3, a pressure sensor 4, a flowmeter 5, a pressurization pump 6, a second electromagnetic valve 7, a water tank 8, an exhaust pipe 9 and a drain pipe 10.
Sealing device's upper end is provided with the exhaust hole, and the exhaust hole is connected with the one end of blast pipe 9, and the other end of blast pipe 9 still is provided with first solenoid valve 1 in stretching into water tank 8 on the blast pipe 9, and sealing device's lower extreme is provided with the pressurization hole, is provided with forcing pipe 3 on the pressurization hole, and the other end of forcing pipe 3 stretches into in the water tank 8.
The pressure sensor 4, the flowmeter 5 and the pressure pump 6 are sequentially arranged on the pressure pipe 3 from the pressure hole to the water tank 8, a water drain pipe 10 is further arranged between the pressure sensor 4 and the pressure hole, the other end of the water drain pipe 10 extends into the water tank 8, a second electromagnetic valve 7 is further arranged on the water drain pipe 10, and the first electromagnetic valve 1, the second electromagnetic valve 7, the pressure sensor 4, the flowmeter 5 and the pressure pump 6 are electrically connected with the control box 2.
The sealing device mainly comprises a rotating hand wheel 11, a pressing connecting rod 12, an upper cross rod 13, a supporting slide rod 14, an upper pressing disc 15, a supporting chassis 16, a quick connector 17 and a base 18, wherein the upper cross rod 13 and the supporting slide rod 14 form a door-shaped frame, the door-shaped frame is installed on the base 18, the supporting chassis 16 is fixedly arranged on the upper surface of the base 18, the supporting chassis 16 is arranged in the supporting slide rod 14, and a pressing hole is formed in the middle of the supporting chassis 16.
An upper pressing disc 15 is arranged below the upper cross rod 13, the upper pressing disc 15 is in sliding connection with the supporting slide rod 14, an exhaust hole is formed in the middle of the upper pressing disc 15 and protrudes upwards, the exhaust hole is connected with the exhaust pipe 9 through a quick connector 17, the pressing connecting rod 12 is arranged on the upper pressing disc 15 and is in threaded connection with the upper pressing disc 15, a rotating hand wheel 11 is arranged after the pressing connecting rod 12 upwards penetrates through the upper cross rod 13, the pressing connecting rod 12 is in threaded connection with the upper cross rod 13, and when the rotating hand wheel 11 is rotated, the pressing connecting rod 12 is driven to rotate upwards or downwards relative to the upper cross rod 13, so that the upper pressing disc 15 can slide up and down along the supporting slide rod 14.
Preferably, the lower surface of the upper pressing disc 15 and the upper surface of the supporting chassis 16 are both provided with sealing rubber to increase the sealing effect at both ends of the test valve 19, so that the leakage of the test valve 19 can only flow out along the pressing hole.
Preferably, the exhaust pipe 9 and the drain pipe 10 extend into the water tank 8 and are located above the water surface, the pressure pipe 3 directly extends into the water surface, and the upper cover of the water tank 8 is made of transparent material, so that whether the water in the pipeline is emptied or not can be conveniently observed.
The operation procedure before the test of this example is as follows: firstly, placing a test valve 19 below an upper pressure disc 15, rotating a rotating hand wheel 11, pressing the upper pressure disc 15 onto the test valve 19 through a pressing connecting rod 12, and pressing the test valve 19 tightly to seal the upper end and the lower end of the test valve 19; secondly, selecting or inputting various parameters of the test valve 19, such as nominal diameter, nominal pressure, sealing type (metal sealing/nonmetal sealing) and the like, in the control box 2; and thirdly, starting the control box 2 to enable the device to start working.
The experimental procedure for this example is as follows:
firstly, the control box 2 opens the first electromagnetic valve 1, closes the second electromagnetic valve 7, starts the pressure pump 6, injects water in the water tank 8 to the test valve 19 through the pressure pipe 3, simultaneously exhausts the air through the exhaust pipe 9, and when water in the exhaust pipe 9 is discharged into the water tank 8, the control box 2 closes the first electromagnetic valve 1;
secondly, the pressure pump 6 continues to inject water into the test valve 19, at the moment, the pressure sensor 4 monitors, when the pressure in the pressure pipe 3 is increased to the strength test pressure (namely 1.5 times of the nominal pressure of the test valve), the pressure sensor 4 transmits a signal to the control box 2, the control box 2 starts the strength test timing of the test valve 19, the control box 2 performs first reading on the flow meter 5 at the same time, during the strength test timing, the control box 2 controls the pressure pump 6 to keep the water pressure stable and unchanged, when the strength test timing is finished, the control box 2 performs second reading on the flow meter 5, the first reading and the second reading are compared, if the readings are the same (or the leakage amount is within an allowable range), the control box 2 displays that the strength test result is qualified, if the readings are different (or the leakage amount is beyond the allowable range), the control box 2 prompts that the strength test result is unqualified;
thirdly, under the condition that the strength test of the test valve 19 is qualified, the control box 2 opens the first electromagnetic valve 1 for pressure relief, the pressure sensor 4 carries out real-time pressure detection, when the pressure in the pressure pipe 3 is reduced to the tightness test pressure (namely 1.1 times of the nominal pressure of the test valve), the control box 2 closes the first electromagnetic valve 1, the tightness test timing of the test valve 19 is started, meanwhile, the control box 2 carries out third reading on the flow meter 5, during the tightness test timing, the control box 2 controls the pressure pump 6 to keep the water pressure stable and unchanged, when the tightness test timing is ended, the control box 2 carries out fourth reading on the flow meter 5, the third reading and the fourth reading are compared, if the two readings are the same (or the leakage amount is within an allowable range), the control box 2 displays the tightness test result to be qualified, and if the two readings are different (or the leakage amount exceeds the allowable range), the control box 2 prompts that the product is not qualified;
fourthly, the control box 2 controls the pressure pump 6 to stop working, the first electromagnetic valve 1 and the second electromagnetic valve 7 are opened to discharge water in the pressure pipe 3, the exhaust pipe 9, the water drain pipe 10 and the test valve 19 to the water tank 8, and when the water is emptied, the automatic device stops working.
Claims (4)
1. The utility model provides a valve hydrostatic test's automatics which characterized in that: the device comprises a sealing device, a first electromagnetic valve (1), a control box (2), a pressure pipe (3), a pressure sensor (4), a flowmeter (5), a pressure pump (6), a second electromagnetic valve (7), a water tank (8), an exhaust pipe (9) and a drain pipe (10), wherein an exhaust hole is formed in the upper end of the sealing device and is connected with one end of the exhaust pipe (9), the other end of the exhaust pipe (9) extends into the water tank (8), the first electromagnetic valve (1) is further arranged on the exhaust pipe (9), a pressure hole is formed in the lower end of the sealing device, the pressure pipe (3) is arranged on the pressure hole, and the other end of the pressure pipe (3) extends into the water tank (8);
pressure sensor (4), flowmeter (5) and force (forcing) pump (6) have set gradually by pressurization hole to water tank (8) on forcing pipe (3), still be provided with water-drain pipe (10) between pressure sensor (4) and the pressurization hole, in the other end of water-drain pipe (10) stretched into water tank (8), still be provided with second solenoid valve (7) on water-drain pipe (10), first solenoid valve (1), second solenoid valve (7), pressure sensor (4), flowmeter (5), force (forcing) pump (6) were connected with control box (2) electricity.
2. The automated valve hydraulics test apparatus of claim 1, wherein: the sealing device comprises a rotary hand wheel (11), a pressing connecting rod (12), an upper cross rod (13), a supporting slide rod (14), an upper pressing disc (15), a supporting base plate (16), a quick joint (17) and a base (18), wherein the upper cross rod (13) and the supporting slide rod (14) form a door-shaped frame, the door-shaped frame is installed on the base (18), the supporting base plate (16) is fixedly arranged on the upper surface of the base (18), the supporting base plate (16) is arranged in the supporting slide rod (14), and a pressurizing hole is formed in the middle of the supporting base plate (16);
an upper pressing disc (15) is arranged below the upper cross rod (13), the upper pressing disc (15) is in sliding connection with the supporting slide rod (14), an exhaust hole is formed in the middle of the upper pressing disc (15) and is connected with the exhaust pipe (9) through a quick connector (17), the pressing connecting rod (12) is arranged on the upper pressing disc (15) and is in threaded connection with the upper pressing disc (15), the pressing connecting rod (12) penetrates the upper cross rod (13) upwards and is provided with a rotating hand wheel (11), the pressing connecting rod (12) is in threaded connection with the upper cross rod (13), and when the rotating hand wheel (11) is rotated, the pressing connecting rod (12) is driven to rotate upwards or downwards relative to the upper cross rod (13), so that the upper pressing disc (15) can slide up and down along the supporting slide rod (14).
3. The automated valve hydraulics test apparatus of claim 2, wherein: and sealing rubber is arranged on the lower surface of the upper pressing disc (15) and the upper surface of the supporting chassis (16).
4. The automated valve hydraulics test apparatus of claim 1, wherein: the exhaust pipe (9) and the drain pipe (10) extend into the water tank (8) and are located above the water surface, the pressurizing pipe (3) directly extends into the position below the water surface, and the upper cover of the water tank (8) is made of transparent materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021430470.9U CN212646338U (en) | 2020-07-20 | 2020-07-20 | Automatic device for valve hydrostatic test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021430470.9U CN212646338U (en) | 2020-07-20 | 2020-07-20 | Automatic device for valve hydrostatic test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212646338U true CN212646338U (en) | 2021-03-02 |
Family
ID=74763804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021430470.9U Active CN212646338U (en) | 2020-07-20 | 2020-07-20 | Automatic device for valve hydrostatic test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212646338U (en) |
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2020
- 2020-07-20 CN CN202021430470.9U patent/CN212646338U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214104 room 301-218, block a, Xidong chuangrong building, No. 78, Danshan Road, anzhen street, Xishan District, Wuxi City, Jiangsu Province Patentee after: Jiangsu CRRC Urban Development Co.,Ltd. Patentee after: CRRC Construction Engineering Co., Ltd Address before: 215000 115 Yinsheng Road, Shengpu Town, Suzhou Industrial Park, Jiangsu Province Patentee before: SUZHOU CHINA VEHICLE CONSTRUCTION ENGINEERING Co.,Ltd. Patentee before: CRRC Construction Engineering Co., Ltd |
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| CP03 | Change of name, title or address |