Water supply pressurization system for testing tightness of instrument

Abstract

The utility model relates to a water supply pressurization system for testing the sealing performance of an instrument, which belongs to the technical field of instrument sealing performance testing, and comprises a water tank, a circulating pump and a pressurization pump, the water tank is connected with a first water delivery pipe, and the first water delivery pipe is provided with a first valve; the input end of the circulating pump communicates with the first water conveying pipe, the output end of the circulating pump is connected with a second water conveying pipe, the second water conveying pipe is provided with a second valve and connected with a through pipe, and the pipe wall of the through pipe is connected with a plurality of sets of third water conveying pipes. The third water conveying pipes are provided with third valves and pressure gauges correspondingly, and the ends, away from the through pipes, of the third water conveying pipes are connected with pressing machines correspondingly. And the pressure pump is connected with the through pipe. The system provided by the utility model can be used for supplying water to a plurality of groups of pressing machines, so that not only is the equipment manufacturing cost saved, but also the occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of instrument sealing test, in particular to a water supply pressurizing system for testing the sealing of an instrument. Background Art

[0002] After the flow meter, heat meter and other instruments are produced, the staff needs to conduct a sealing test on them. At present, the instrument to be tested is usually installed on a press with a suitable caliber specification, and a water supply pressurizing device is connected to the water supply position of the press.

[0003] There are many caliber specifications of the instrument. In the test of the sealing of the instrument, various specifications of pressurizing machines that are compatible with the instrument are needed. In addition, it is necessary to connect water supply pressurizing equipment to the water supply position of each pressurizing machine. In view of the above phenomenon, the inventor believes that the current test of the sealing of the instrument requires a large amount of water supply pressurizing equipment manufacturing cost, and at the same time, the water supply pressurizing equipment also occupies a large space. Therefore, it is urgent to invent a new type of water supply pressurizing system. Utility Model Content

[0004] The utility model aims to provide a water supply pressurizing system for testing the sealing performance of an instrument in view of the above-mentioned deficiencies in the prior art.

[0005] The utility model provides a water supply pressurizing system for testing the sealing performance of an instrument, which adopts the following technical scheme:

[0006] A water supply pressurizing system for testing the tightness of an instrument, comprising:

[0007] A water tank, wherein the water tank is connected to a first water pipe, and the first water pipe is equipped with a first valve;

[0008] A circulation pump, wherein the input end of the circulation pump is connected to the first water pipe, the output end of the circulation pump is connected to the second water pipe, the second water pipe is equipped with a second valve, the second water pipe is connected to a through pipe, the wall of the through pipe is connected to a third water pipe, the third water pipe is provided with multiple groups, the multiple groups of the third water pipes are respectively equipped with third valves, the multiple groups of the third water pipes are respectively equipped with pressure gauges, and the ends of the third water pipes away from the through pipes are respectively connected to press machines for installing and testing instruments;

[0009] A pressure pump is connected to the through pipe.

[0010] Preferably, the through pipe is connected to the first water pipe via a fourth water pipe, and the fourth water pipe is installed with a fourth valve.

[0011] Preferably, one end of the fourth water pipe away from the through pipe is connected to the pipe body of the first water pipe located between the first valve and the circulation pump.

[0012] Preferably, the second water pipe is connected to the first water pipe via a fifth water pipe, and the fifth water pipe is installed with a fifth valve.

[0013] Preferably, one end of the fifth water pipe is connected to the tube body of the second water pipe located between the second valve and the circulation pump, and the other end of the fifth water pipe is connected to the tube body of the first water pipe located between the first valve and the water tank.

[0014] Preferably, the through pipe and the pressure pump are connected to a pressure hose.

[0015] Preferably, the third water pipe and the press are connected to a water hose.

[0016] In summary, the utility model includes the following beneficial technical effects:

[0017] 1. The utility model comprises a water tank, a circulation pump, a pressurizing machine and a booster pump, wherein the water tank and the circulation pump are connected with a first water delivery pipe, water flowing out of the circulation pump can enter the pressurizing machine through a second water delivery pipe, a through pipe and a third water delivery pipe, a plurality of third water delivery pipes are provided, and the third water delivery pipes are respectively connected with the through pipes, and the pressurizing machine connected with the third water delivery pipe can be installed with instruments of different calibers and specifications, and when the sealing performance of the instruments on the pressurizing machine is preliminarily tested, the first valve, the second valve, the third valve and the valve on the pressurizing machine of the corresponding lines can be opened, water can be delivered into the pressurizing machine, the booster pump can be started, the inside of the pressurizing machine can be pressurized, and the instruments installed on the pressurizing machine can be observed for leaks. The system satisfies the requirement of one machine for multiple uses, saves equipment manufacturing costs, and reduces floor space.

[0018] 2. By connecting the fourth water pipe with the first water pipe through the through pipe, and connecting the fifth water pipe with the first water pipe through the second water pipe, after the press machine completes its work, the fourth valve and the fifth valve respectively installed on the fourth water pipe and the fifth water pipe can be opened, and the third valve on the third water pipe connected to the press machine can be opened, and the circulation pump can be started, and the water in the press machine can be returned to the water tank, so that the water can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a water supply pressurization system for testing the sealing performance of an instrument provided by an embodiment of the utility model;

[0020] Figure 2 It is a partial structural entity diagram to show the pipeline connection relationship between the water tank, circulation pump and booster pump.

[0021] Explanation of the reference numerals in the accompanying drawings: 1. water tank; 11. first water pipe; 111. first valve; 2. circulation pump; 21. second water pipe; 211. second valve; 22. fifth water pipe; 221. fifth valve; 3. booster pump; 31. through pipe; 311. booster hose; 32. third water pipe; 321. third valve; 322. pressure gauge; 323. water hose; 33. fourth water pipe; 331. fourth valve; 4. pressurizing machine; 41. bracket; 42. water injection part; 421. water outlet pipe; 43. hydraulic cylinder. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-2 The utility model is described in further detail.

[0023] The utility model embodiment discloses a water supply pressurization system for testing the sealing performance of an instrument. Figure 1 and Figure 2 , including a water tank 1, a circulating pump 2 and a booster pump 3. The bottom end of the water tank 1 and the input end of the circulating pump 2 are commonly connected with a first water pipe 11, and the first water pipe 11 is installed with a first valve 111. The output end of the circulating pump 2 is connected with a second water pipe 21, and the second water pipe 21 is installed with a second valve 211. The second water pipe 21 and the booster pump 3 are connected with a through pipe 31, and the through pipe 31 is connected with a third water pipe 32, wherein the third water pipe 32 is provided with multiple groups, each group of the third water pipe 32 is installed with a third valve 321 and a pressure gauge 322, and the multiple groups of the third water pipes 32 are connected with a pressurizing machine 4 for installing and detecting instruments of different caliber specifications. The instrument in this embodiment is selected as a flow meter.

[0024] Reference Figure 1 and Figure 2 , the third water pipe 32 in this embodiment is preferably provided with three groups, and the pressing machine 4 is preferably provided with three groups. The pressing machine 4 in this embodiment is an existing device, and the pressing machine 4 includes a bracket 41, a water injection piece 42 and a hydraulic cylinder 43. The water injection piece 42 is arranged on the bracket 41, and the hydraulic cylinder 43 is arranged on the bracket 41 in a vertical downward direction. The flow meter with a smaller diameter to be measured can be installed in series on the water injection piece 42, and the flow meter with a larger diameter to be measured is directly installed on the water injection piece 42. The water injection piece 42 located at the top is connected to the bottom end of the hydraulic cylinder 43. Under the action of the hydraulic cylinder 43, the water injection piece 42 and the flow meter are closely connected. The top of the water injection piece 42 is provided with a water outlet pipe 421, and the water outlet pipe 421 is installed with a valve. The bottom end of the water injection piece 42 is provided with a water inlet connected with the third water pipe 32;

[0025] When the flow meter installed on the press machine 4 is tested for sealing performance, the third valve 321 on the third water pipe 32 connected to the press machine 4 on which the flow meter to be tested is opened, and the first valve 111, the second valve 211 and the valve on the outlet pipe 421 of the press machine 4 are opened, and the other valves are in a closed state. The circulation pump 2 is turned on, and the water in the water tank 1 is transported to the press machine 4. After the outlet pipe 421 located at the upper end of the press machine 4 discharges water, it means that the press machine 4 is full of water. The circulation pump 2 can be turned off, the second valve 211 and the valve of the outlet pipe 421 of the press machine 4 are closed, and the booster pump 3 is started. The booster pump 3 pressurizes the press machine 4 through the through pipe 31. When the pressure gauge 322 on the third water pipe 32 reaches the preset value, the booster pump 3 can be turned off, and the pressure maintenance work is carried out for at least five minutes to observe whether there is any water leakage in the flow meter installed on the press machine 4.

[0026] Reference Figure 1 and Figure 2 The through pipe 31 is connected to the first water pipe 11 via a fourth water pipe 33, the fourth water pipe 33 is provided with a fourth valve 331, one end of the fourth water pipe 33 away from the through pipe 31 is connected to the tube body of the first water pipe 11 between the first valve 111 and the circulating pump 2; the second water pipe 21 is connected to the first water pipe 11 via a fifth water pipe 22, the fifth water pipe 22 is provided with a fifth valve 221, one end of the fifth water pipe 22 is connected to the tube body of the second water pipe 21 between the second valve 211 and the circulating pump 2, and the other end of the fifth water pipe 22 is connected to the tube body of the first water pipe 11 between the first valve 111 and the water tank 1 (it should be noted that when the pressure pump 3 is started to pressurize the pressurizing machine 4, before the pressure pump 3 is started, the fourth valve 331 and the fifth valve 221 must be in a closed state, otherwise the circulating pump 2 may be damaged). After completing the inspection of the flow meter on the press 4, close the first valve 111, open the fourth valve 331 and the fifth valve 221, open the water outlet pipe 421 of the press 4, start the circulation pump 2, and the water in the press 4 can be returned to the water tank 1 through the third water pipe 32, the through pipe 31, the fourth water pipe 33, the fifth water pipe 22 and the first water pipe 11, thereby achieving the reuse of water.

[0027] Reference Figure 1 and Figure 2 The through pipe 31 and the pressure pump 3 are connected together with a pressure hose 311, and the third water pipe 32 and the pressing machine 4 are connected together with a water hose 323. The water hose 323 is connected to the water inlet at the bottom end of the water injection part 42 of the pressing machine 4. The pressure hose 311 and the water hose 323 are both soft material pipes. The staff can change the positions of the pressure pump 3 and the pressing machine 4 according to the use environment.

[0028] The implementation principle of the water supply pressurization system for testing the sealing performance of an instrument according to the embodiment of the utility model is as follows:

[0029] When the sealing test is performed on the instruments on one group of the press machine 4 in advance, the first valve 111, the second valve 211, the third valve 321 on the third water pipe 32 connected to the press machine 4 and the valve of the water outlet pipe 421 of the press machine 4 are opened, the circulation pump 2 is opened, and the water in the water tank 1 is transported to the press machine 4. When the water outlet pipe 421 of the press machine 4 discharges water, the circulation pump 2 can be closed, and the second valve 211, the fourth valve 331 and the valve of the water outlet pipe 421 of the press machine 4 are closed, and the booster pump 3 is started. The pressure gauge 322 on the third water pipe 32 connected to the press machine 4 is observed. When the pressure gauge 322 reaches the preset value, the booster pump 3 is closed, and the pressure maintenance work is performed for at least five minutes to observe whether there are any leaks in the instruments installed on the press machine 4;

[0030] Close the first valve 111, and open the fourth valve 331, the fifth valve 221 and the valve of the water outlet pipe 421 of the press 4, start the circulation pump 2, and the water in the press 4 returns to the water tank 1;

[0031] The system in this embodiment can supply water and pressurize multiple groups of pressurizing machines 4, which not only saves equipment manufacturing costs but also reduces occupied space.

[0032] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A water supply pressurization system for testing the sealing performance of an instrument, characterized in that: include, A water tank (1), the water tank (1) being connected to a first water pipe (11), the first water pipe (11) being provided with a first valve (111); A circulation pump (2), wherein the input end of the circulation pump (2) is connected to the first water pipe (11), the output end of the circulation pump (2) is connected to the second water pipe (21), the second water pipe (21) is equipped with a second valve (211), the second water pipe (21) is connected to a through pipe (31), the wall of the through pipe (31) is connected to a third water pipe (32), the third water pipe (32) is provided with a plurality of groups, the plurality of groups of the third water pipes (32) are respectively equipped with a third valve (321), the plurality of groups of the third water pipes (32) are respectively equipped with a pressure gauge (322), and the ends of the third water pipes (32) away from the through pipe (31) are respectively connected to a press machine (4) for installing and testing instruments; A pressure pump (3), wherein the pressure pump (3) is connected to a through pipe (31).

2. A water supply pressurizing system for testing the sealing performance of an instrument according to claim 1, characterized in that: The through pipe (31) is connected to the first water pipe (11) via a fourth water pipe (33), and the fourth water pipe (33) is installed with a fourth valve (331).

3. A water supply pressurizing system for testing the sealing performance of an instrument according to claim 2, characterized in that: One end of the fourth water delivery pipe (33) away from the through pipe (31) is connected to the pipe body of the first water delivery pipe (11) located between the first valve (111) and the circulation pump (2).

4. A water supply pressurizing system for testing the sealing performance of an instrument according to claim 1, characterized in that: The second water pipe (21) is connected to the first water pipe (11) via a fifth water pipe (22), and the fifth water pipe (22) is installed with a fifth valve (221).

5. A water supply pressurizing system for testing the sealing performance of an instrument according to claim 4, characterized in that: One end of the fifth water pipe (22) is connected to the pipe body of the second water pipe (21) between the second valve (211) and the circulation pump (2), and the other end of the fifth water pipe (22) is connected to the pipe body of the first water pipe (11) between the first valve (111) and the water tank (1).

6. A water supply pressurizing system for testing the sealing performance of an instrument according to claim 1, characterized in that: The through pipe (31) and the pressure pump (3) are connected to a pressure hose (311).

7. A water supply pressurizing system for testing the sealing performance of an instrument according to claim 1, characterized in that: The third water pipe (32) and the press (4) are connected to a water hose (323).

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