Air purification system pipe fitting and valve linkage testing device

Abstract

The utility model relates to the technical field of valve linkage testing, in particular to an air purification system pipe fitting and valve linkage testing device which comprises a testing box, a pipe fitting and a ball valve, a clamping mechanism is installed in the testing box, and a pressurization detection mechanism is arranged on the outer side of the clamping mechanism. The hydraulic oil cylinder is started through the PLC control system to drive the piston rod to move in the direction of the pipe fitting, the piston rod moves to drive the clamping block to make contact with the exposed end of the pipe fitting, and the pipe fitting clamping and fastening effect is achieved through simultaneous operation of the two clamping mechanisms. The PLC control system starts the gas adding pump to add gas into the pipe fitting, meanwhile, a water inlet water valve connected with an external water pump is opened, water is filled into the test box till the connecting position of the pipe fitting and the ball valve is submerged, after gas adding is completed, the gas adding pump is closed, the pressure detection meter installed at the top end of the connecting rod is observed, and if the pressure value of the pipe fitting at one end is reduced, the pressure value of the pipe fitting at the other end is detected. If yes, the air tightness of the section is insufficient, and whether bubbles are generated in the test box is observed cooperatively.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve linkage test technical field, concretely is a kind of air purification system pipe fitting and valve linkage test device. BACKGROUND

[0002] Pipe fitting and valve linkage test can ensure the safety and reliability of system. Through test, problems such as leakage, jamming, etc. in pipe fitting and valve connection and cooperation can be found in time, to avoid failure in operation leading to medium leakage, system out of control and other dangerous situations. At the same time, the action accuracy and flexibility of valve in pipe fitting system can be tested to ensure that it can normally open and close and regulate flow as required, and ensure stable and efficient operation of the entire pipeline system, but the existing test device can only detect valve or pipe fitting alone, ignoring the importance of detecting valve and pipe fitting connection point.

[0003] As disclosed in the authorized announcement No. CN215865690U, the aircraft accessory testing device technical field discloses an aircraft pneumatic valve testing device, which comprises a base, a displacement mechanism is arranged in the base, an output end of the displacement mechanism is fixedly connected with a positioning mechanism located at the top of the base, a limiting mechanism is fixedly connected with the left side of the positioning mechanism at the top of the base, a shell is fixedly connected with the left side of the limiting mechanism at the top of the base, a pressurizing mechanism is arranged in the shell, one end of the pressurizing mechanism extends to the left side of the shell and the other end extends to the top of the shell, and a control mechanism is communicated with the outside of the pressurizing mechanism and extends to the inside of the limiting mechanism. The aircraft pneumatic valve testing device has the advantages of convenient use, solves the problem of complex structure of the testing device for aircraft pneumatic valve in the prior art, and needs time-consuming positioning and installation of the pneumatic valve, so that the testing process is complicated, and the testing device is not convenient to use.

[0004] But the utility model in the linkage test of pipe fitting and valve, clamping fixed range is narrow, and it lacks water immersion detection function, it is not convenient to quickly detect the leak point position of product, and the connection of valve two sides and pipe fitting is detected respectively, for this, we put forward a kind of air purification system pipe fitting and valve linkage test device, solve the leak point detection and pipe fitting segmented detection inconvenience problem of the utility model, improve the detection accuracy, intuitiveness and practical effect of the utility model. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of air purification system pipe fitting and valve linkage test device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides an air purification system pipe and valve linkage test device, including test box, pipe and ball valve, the inside installation of test box is clamped mechanism, the outside of clamped mechanism is equipped with pressurized detection mechanism, one end of test box is equipped with water inlet and water outlet, water inlet and water outlet outside installation have water valve.

[0008] Through the above technical scheme: by opening the water inlet water valve connected with the external water pump, the test box is filled with water to the submerged pipe and ball valve connection, the test box inside the product to be tested can be observed whether there is bubble, so as to directly judge the air leakage position, more intuitive and convenient.

[0009] Preferably, the clamping mechanism includes a hydraulic cylinder and a piston rod, the piston rod is fixedly provided with a clamping block at one end away from the hydraulic cylinder, the clamping block is hollow, a sealing ring is embedded and installed on the side of the clamping block away from the piston rod, an air inlet hole is formed in the side of the clamping block away from the piston rod and communicated with the hollow cavity, a connecting rod is fixedly installed on the top end of the clamping block, a pressure detection table is fixedly installed on the top end of the connecting rod, the bottom end of the connecting rod is communicated with the hollow cavity, an air hose is fixedly connected to the side of the connecting rod, one end of the air hose is fixedly connected to the output end of an air pump, the air pump is fixedly installed on the outer wall of the test box, the air hose and the connecting rod are communicated with each other, the hydraulic cylinder is fixedly installed on the outer wall of the test box, the clamping mechanism is provided with two groups, the two groups of clamping mechanisms are respectively installed on the two ends of the test box, a pressure sensor is installed on the oil way of the hydraulic cylinder, a PLC control system is fixedly installed on the outer wall of the long side of the test box, the pressure sensor and the PLC control system are electrically connected, the PLC control system is electrically connected with the hydraulic cylinder and the air pump, support legs are fixedly installed on the bottom end of the test box, the sealing ring is made of silicone rubber or nitrile rubber material.

[0010] By adopting the technical scheme, the hydraulic cylinder is started by the PLC control system to drive the piston rod to move towards the pipe, before use, the output pressure value of the hydraulic cylinder is preset in the PLC control system according to different pipe materials, the oil circuit of the hydraulic cylinder is provided with a pressure sensor, the actual pressure value of the hydraulic cylinder can be detected in real time, and the pressure signal is converted into an electric signal and fed back to the PLC control system, the PLC control system compares the received actual pressure signal with the set pressure value, and adjusts the control signal output according to the comparison result. The movement of the piston rod drives the clamping block to contact the exposed end of the pipe, and the clamping and fastening effect of the pipe is realized through the simultaneous operation of the two groups of clamping mechanisms, the sealing ring has good sealing property and flexibility, and the sealing effect of the exposed end of the pipe can be realized, so that air leakage at the clamping point during the pressurizing and inflating process is avoided. Then the ball valve is closed, the inflating pump is started by the PLC control system to inflate the pipe, after inflation, the inflating pump is closed, and the pressure detection table installed at the top end of the connecting rod is observed, if the pressure value of one end of the pipe decreases, it indicates that the air tightness of the pipe is insufficient, after detection, the piston rod is retracted by the hydraulic cylinder started by the PLC control system, and the product can be taken out, so as to realize the detection of the product one by one.

[0011] Preferably, the ball valve is fixedly connected with the pipe end through flange connectors on both sides, and the end of the pipe away from the ball valve is abutted against the sealing ring.

[0012] By adopting the technical scheme, the ball valve and the pipe are first fixedly connected through the flange connectors, so that the air tightness detection operation of the pipe and the ball valve connection part is facilitated.

[0013] Compared with the prior art, the air purification system pipe and valve linkage test device has the following beneficial effects:

[0014] 1. The air purification system pipe and valve linkage test device is provided with a water inlet and a water outlet at one end of the test box, the water inlet is connected to an external water pump and a water source, and the water outlet is connected to an external circulating water tank, when the product is detected in the test tank, the test tank can be filled with water to submerge the product to be detected, so that the water immersion detection function is realized, and the product leakage point position can be more directly and quickly observed, and the maintenance or spare part replacement operation efficiency of the workers is improved.

[0015] 2. The air purification system pipe and valve linkage test device is provided with a water inlet and a water outlet at one end of the test box, the water inlet is connected to an external water pump and a water source, and the water outlet is connected to an external circulating water tank, when the product is detected in the test tank, the test tank can be filled with water to submerge the product to be detected, so that the water immersion detection function is realized, and the product leakage point position can be more directly and quickly observed, and the maintenance or spare part replacement operation efficiency of the workers is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the pipe fitting and ball valve structure of the utility model;

[0019] Figure 4 It is the utility model Figure 2 The enlarged schematic diagram of A in the middle.

[0020] In the figure: 1, test box; 2, pipe fitting; 3, ball valve; 4, hydraulic oil cylinder; 5, piston rod; 6, clamping block; 7, connecting rod; 8, pressure detection meter; 9, inflatable hose; 10, air pump; 11, flange connecting piece; 12, PLC control system; 13, support leg; 101, water inlet; 102, water outlet; 103, water valve; 601, cavity; 602, sealing ring; 603, air inlet hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 A technical scheme provided by the utility model:

[0023] The air purification system pipe fitting and valve linkage test device, including test box 1, pipe fitting 2 and ball valve 3, test box 1 inside installation has clamping mechanism, clamping mechanism outside is provided with pressurization detection mechanism, test box 1 one end fixedly set up with water inlet 101 and water outlet 102, water inlet 101 and water outlet 102 outside installation has water valve 103.

[0024] Through the above scheme: by connecting the water inlet 101 water valve 103 of external water pump is opened, test box 1 inside fills water to submerge pipe fitting 2 and ball valve 3 connection place, can cooperate and observe whether the product to be tested in test box 1 has bubble to produce, thereby directly judges the air leakage position, more intuitive and convenient.

[0025] In the embodiment, preferably, the clamping mechanism comprises a hydraulic cylinder 4 and a piston rod 5, the piston rod 5 is fixedly provided with a clamping block 6 at an end away from the hydraulic cylinder 4, the clamping block 6 is internally provided with a cavity 601, the clamping block 6 is embeddedly provided with a sealing ring 602 at an end away from the piston rod 5, the clamping block 6 is provided with an air inlet hole 603 at an end away from the piston rod 5, the air inlet hole 603 is in communication with the cavity 601, the clamping block 6 is fixedly provided with a connecting rod 7 at a top end, the connecting rod 7 is fixedly provided with a pressure detection gauge 8 at a top end, the connecting rod 7 is in communication with the cavity 601 at a bottom end, the connecting rod 7 is fixedly connected with an air hose 9 at one side, one end of the air hose 9 is fixedly connected with an output end of an air pump 10, the air pump 10 is fixedly installed on an outer wall of the test box 1, the air hose 9 is in communication with the connecting rod 7, the hydraulic cylinder 4 is fixedly installed on the outer wall of the test box 1, the clamping mechanism is provided with two groups, the two groups of clamping mechanisms are respectively installed at two ends of the test box 1, a pressure sensor is installed on an oil way of the hydraulic cylinder 4, a PLC control system 12 is fixedly installed on an outer wall of one side of a long side of the test box 1, the pressure sensor is electrically connected with the PLC control system 12, the PLC control system 12 is electrically connected with the hydraulic cylinder 4 and the air pump 10, support legs 13 are fixedly installed at a bottom end of the test box 1, the sealing ring 602 is made of silicone rubber or nitrile rubber.

[0026] Through the above scheme: the hydraulic cylinder 4 is started by the PLC control system 12 to drive the piston rod 5 to move towards the pipe fitting 2, before use, according to different pipe fitting 2 materials, the output pressure value of the hydraulic cylinder 4 is preset in the PLC control system 12, the pressure sensor is installed on the oil way of the hydraulic cylinder 4, the actual pressure value of the hydraulic cylinder 4 can be detected in real time, and the pressure signal is converted into an electric signal to feed back to the PLC control system 12, the PLC control system 12 compares the received actual pressure signal with the set pressure value, and adjusts the control signal output according to the comparison result. The movement of the piston rod 5 drives the clamping block 6 to contact the exposed end of the pipe fitting 2, and through the simultaneous operation of the two groups of clamping mechanisms, the clamping and fastening effect of the pipe fitting 2 is realized, the sealing ring 602 has good sealing property and flexibility, and can play a sealing effect on the exposed end of the pipe fitting 2, avoiding air leakage at the clamping point during the pressurized inflation process. Then the ball valve 3 is closed, the air pump 10 is started again by the PLC control system 12 to inflate the inside of the pipe fitting 2, after inflation, the air pump 10 is closed, and the pressure detection gauge 8 installed at the top end of the connecting rod 7 is observed, if the pressure value of one end of the pipe fitting 2 decreases, it indicates that the air tightness of the pipe fitting 2 is insufficient, after detection is completed, the piston rod 5 is retracted by the hydraulic cylinder 4 started by the PLC control system 12, and the product can be taken out, so as to complete the detection of the product one by one.

[0027] In the embodiment, preferably, the ball valve 3 is fixedly connected with the pipe fitting 2 at both sides through the flange connecting piece 11, and the pipe fitting 2 is abuttingly connected with the sealing ring 602 at an end away from the ball valve 3.

[0028] Through the above scheme: the flange connecting piece 11 is used to fix and connect the ball valve 3 and the pipe 2, so as to facilitate the air tightness detection operation of the pipe 2 and the ball valve 3.

[0029] In use, the fixedly connected pipe 2 and ball valve 3 are manually placed in the test box 1, and the exposed end of the pipe 2 is located at the center of the side of the clamping block 6 provided with the sealing ring 602, then the hydraulic oil cylinder 4 is started by the PLC control system 12 to drive the piston rod 5 to move to the pipe 2 direction, before use, according to different pipe 2 materials, the output pressure value of the hydraulic oil cylinder 4 is preset in the PLC control system 12, a pressure sensor is installed on the oil circuit of the hydraulic oil cylinder 4, which can detect the actual pressure value of the hydraulic oil cylinder 4 in real time, and convert the pressure signal into an electric signal to feed back to the PLC control system 12, the PLC control system 12 compares the received actual pressure signal with the set pressure value, and adjusts the control signal output according to the comparison result. The movement of the piston rod 5 drives the clamping block 6 to contact the exposed end of the pipe 2, and the clamping and fastening effect of the pipe 2 is realized through the simultaneous operation of the two sets of clamping mechanisms, the sealing ring 602 has good sealing property and flexibility, and can seal the exposed end of the pipe 2 to avoid air leakage at the clamping point during the pressurized inflation process. Then the ball valve 3 is closed, the air pump 10 is started by the PLC control system 12 to inflate the pipe 2, and at the same time the water inlet 101 water valve 103 connected with the external water pump is opened, the test box 1 is filled with water to submerge the connection between the pipe 2 and the ball valve 3, after inflation, the air pump 10 is closed, and the pressure detection table 8 installed at the top end of the connecting rod 7 is observed, if the pressure value of one end of the pipe 2 decreases, it indicates that the air tightness of this section is insufficient, and the observation of whether there is air bubble in the test box 1 can directly determine the air leakage position, which is more intuitive and convenient. The drain can be connected to an external circulating water tank, and the circulating water tank is connected with the external water pump, so as to facilitate the circulation of test water. After detection, the hydraulic oil cylinder 4 is started by the PLC control system 12 to drive the piston rod 5 to retract, so that the product can be taken out, and the detection operation of the product is completed in this way. The linkage test device combines pressure detection table 8 and water immersion detection, so that the detection is more accurate and intuitive, the problem area of the product can be quickly judged, and the maintenance or spare part replacement operation efficiency of the workers is improved.

[0030] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A testing device for the linkage of pipe fittings and valves in an air purification system, comprising a test chamber (1), pipe fittings (2), and a ball valve (3), characterized in that: The test box (1) is equipped with a clamping mechanism inside, and a pressure detection mechanism is provided on the outside of the clamping mechanism; The test box (1) is fixedly provided with an inlet (101) and an outlet (102) at one end, and a water valve (103) is installed on the outside of the inlet (101) and the outlet (102); The clamping mechanism includes a hydraulic cylinder (4) and a piston rod (5). A clamping block (6) is fixedly installed at the end of the piston rod (5) away from the hydraulic cylinder (4). The clamping block (6) has a cavity (601) inside. A sealing ring (602) is embedded on the side of the clamping block (6) away from the piston rod (5). An air inlet (603) communicating with the cavity (601) is opened on the side of the clamping block (6) away from the piston rod (5). A connecting rod (7) is fixedly installed at the top of the clamping block (6). A pressure gauge (8) is fixedly installed at the top of the connecting rod (7).

2. The air purification system fittings and valve linkage testing device according to claim 1, characterized in that: The bottom end of the connecting rod (7) is connected to the cavity (601), and an inflation hose (9) is fixedly connected to one side of the connecting rod (7). One end of the inflation hose (9) is fixedly connected to the output end of the air pump (10).

3. The air purification system fittings and valve linkage testing device according to claim 2, characterized in that: The air pump (10) is fixedly installed on the outer wall of the test box (1), and the air inflator (9) is connected to the connecting rod (7).

4. The air purification system fittings and valve linkage testing device according to claim 1, characterized in that: The hydraulic cylinder (4) is fixedly installed on the outer wall of the test box (1). The clamping mechanism is provided in two sets, and the two sets of clamping mechanisms are respectively installed at both ends of the test box (1).

5. The air purification system fittings and valve linkage testing device according to claim 1, characterized in that: The ball valve (3) is fixedly connected to the end of the pipe fitting (2) on both sides through flange connectors (11), and the end of the pipe fitting (2) away from the ball valve (3) is pressed against the sealing ring (602).

6. The air purification system fittings and valve linkage testing device according to claim 4, characterized in that: A pressure sensor is installed on the oil circuit of the hydraulic cylinder (4), and a PLC control system (12) is fixedly installed on the outer wall of the long side of the test box (1).

7. The air purification system fittings and valve linkage testing device according to claim 6, characterized in that: The pressure sensor is electrically connected to the PLC control system (12), and the PLC control system (12) is electrically connected to the hydraulic cylinder (4) and the air pump (10).

8. The air purification system fittings and valve linkage testing device according to claim 1, characterized in that: The test box (1) is fixedly installed with a support leg (13) at the bottom, and the sealing ring (602) is made of silicone rubber or nitrile rubber.

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