Automatic detection equipment for sealing performance of valve positioner

Abstract

The utility model relates to the technical field of valve positioner detection equipment, and discloses valve positioner sealing performance automatic detection equipment, which comprises a detection table, a plurality of positioner main bodies are arranged on the top surface of the detection table, and a detection assembly used for detecting the sealing performance of the positioner main bodies is further arranged on the top surface of the detection table. The detection assembly comprises a blocking plate arranged at the rear end of the positioner body, and the front side of the blocking plate is fixed to a rubber block. Gas in the positioner main body is extracted through the vacuum pump, so that the interior of the positioner main body is in a negative pressure state, air pressure detection is carried out on the interior of the positioner main body through the air pressure sensor, and when the air pressure of the positioner main body does not change greatly within a certain period of time, the sealing performance is reliable; in the process of detecting a certain positioner main body, the vacuum air pipe can be pulled out to be continuously connected to other positioner main bodies for sealing performance detection, so that the detection efficiency of the positioner main bodies is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve positioner detection equipment technical field especially relates to a valve positioner sealing performance automatic detection equipment. BACKGROUND

[0002] Valve positioner is one of the main accessories of regulating valve, and is widely used in nuclear power, chemical industry, petroleum, LNG transportation and other industries, and the working environment is very bad, so the positioner shell needs to have the functions of explosion-proof or explosion-proof, and has high requirements on its structural strength and sealing performance, therefore, valve positioner sealing performance automatic detection equipment is needed to detect the sealing performance of valve positioner.

[0003] The existing valve positioner shell water pressure testing device (announcement number: CN219914845U) has at least the following disadvantages: when detecting the sealing performance of a valve positioner, the device needs to inject water into the valve positioner and maintain for a period of time to observe whether water overflows, and during this detection time, other valve positioners cannot be detected, and the detection efficiency is affected, therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a valve positioner sealing performance automatic detection equipment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A valve positioner sealing performance automatic detection equipment, including detection table, the top surface of detection table is provided with a plurality of positioner main parts, the top surface of detection table is also provided with detection assembly for detecting the sealing performance of positioner main part, detection assembly includes the blocking plate arranged at the rear end of positioner main part, the front side of blocking plate is fixed to rubber block, rubber block is connected with the socket of positioner main part in interference fit, the left side interface of front end of positioner main part is connected with manual valve, the end away from positioner main part of manual valve is connected with vacuum air pipe, the right side interface of front end of positioner main part is connected with air pressure sensor.

[0007] As a further scheme of the utility model, the top surface of detection table is respectively fixed with vacuum pump and touch PLC all-in-one machine, one end of vacuum air pipe away from manual valve is connected with vacuum pump suction end, vacuum air pipe is connected with electromagnetic valve in the middle, vacuum air pipe is metal bellows, air pressure sensor, vacuum pump and electromagnetic valve are electrically connected with touch PLC all-in-one machine.

[0008] As a further scheme of the utility model, the top surface of the detection table is fixed with a placing rack, the plurality of positioner main bodies are placed in the inside of the placing rack respectively, the top surface of the placing rack is fixed with a red light, a yellow light and a green light at the position corresponding to the positioner main body, and the red light, the yellow light and the green light are electrically connected with the touch PLC all-in-one machine.

[0009] As a further scheme of the utility model, the top surface of the detection table is embedded with a wire collecting box, and the excess wire bodies of the air pressure sensor, the red light, the yellow light and the green light are all collected in the inside of the wire collecting box.

[0010] As a further scheme of the utility model, the air pressure sensor and the manual valve are all sealedly connected with the interface of the positioner main body through the quick connector, and the manual valve is also sealedly connected with the vacuum air pipe through the quick connector.

[0011] As a further scheme of the utility model, the inside of the detection table is fixed with a storage cabinet, and the storage cabinet has a partition.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] By sealing the other interfaces of the positioner main body through the sealing plate and the rubber block, then extracting the gas in the positioner main body through the vacuum pump, so that the inside of the positioner main body is in a negative pressure state, and then detecting the air pressure in the positioner main body through the air pressure sensor, if the air pressure in the positioner main body does not change greatly within a certain time, it indicates that the sealing performance is reliable, and in the process of detecting a certain positioner main body, the vacuum air pipe can be pulled out and connected to other positioner main bodies for sealing performance detection, so that other positioner main bodies can be continuously detected during the waiting time of the previous positioner main body detection, and the detection efficiency of the positioner main body is increased. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the valve positioner sealing performance automatic detection equipment proposed in the utility model;

[0015] Figure 2 It is a front view three-dimensional structure schematic view of the positioner main body of the valve positioner sealing performance automatic detection equipment proposed in the utility model;

[0016] Figure 3 It is a rear view three-dimensional structure schematic view of the positioner main body of the valve positioner sealing performance automatic detection equipment proposed in the utility model;

[0017] Figure 4 It is a sealing plate three-dimensional structure schematic view of the valve positioner sealing performance automatic detection equipment proposed in the utility model.

[0018] In the figure: 1, detection platform; 101, locator main body; 2, blocking plate; 201, rubber block; 202, manual valve; 203, vacuum air pipe; 204, air pressure sensor; 205, vacuum pump; 206, electromagnetic valve; 3, placing rack; 301, red light; 302, yellow light; 303, green light; 4, concentrator box; 5, storage cabinet. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] As shown in Figures 1-4 A valve positioner sealing performance automatic detection equipment, including detection platform 1, the top surface of the detection platform 1 is provided with a plurality of locator main body 101, the top surface of the detection platform 1 is also provided with a detection assembly for detecting the sealing performance of the locator main body 101, the detection assembly includes a blocking plate 2 arranged at the rear end of the locator main body 101, the front side of the blocking plate 2 is fixed to the rubber block 201, the rubber block 201 is connected with the socket of the locator main body 101 in interference fit, the blocking plate 2 can be replaced according to different models of the locator main body 101, the rubber block 201 on the different blocking plates 2 is different in position, size and shape, a manual valve 202 is connected to the left interface at the front end of the locator main body 101, a vacuum air pipe 203 is connected to the end of the manual valve 202 away from the locator main body 101, and an air pressure sensor 204 is connected to the right interface at the front end of the locator main body 101.

[0023] As Figures 2-4 shown in the embodiment, the top surface of the detection platform 1 is respectively fixed with a vacuum pump 205 and a touch PLC integrated machine, one end of a vacuum air pipe 203 away from a manual valve 202 is connected with a suction end of the vacuum pump 205, a middle part of the vacuum air pipe 203 is connected with an electromagnetic valve 206, the vacuum air pipe 203 is a metal bellows, the air pressure sensor 204, the vacuum pump 205 and the electromagnetic valve 206 are electrically connected with the touch PLC integrated machine, by placing the blocking plate 2 at the rear end of the positioner main body 101 and making the rubber block 201 and the socket of the positioner main body 101 in interference fit connection, then connecting the manual valve 202 and the air pressure sensor 204 with the front end interface of the positioner main body 101, then connecting the vacuum air pipe 203 with the manual valve 202, at this time, opening the manual valve 202, opening the electromagnetic valve 206 and starting the vacuum pump 205 to extract the gas inside the positioner main body 101 by operating the touch PLC integrated machine, at this time, the air pressure sensor 204 detects the air pressure inside the positioner main body 101, when the air pressure reaches a predetermined value, the electromagnetic valve 206 is closed, the vacuum pump 205 is also closed, then the staff closes the manual valve 202, and detaches the vacuum air pipe 203 from the manual valve 202, then installs the blocking plate 2, the air pressure sensor 204 and the manual valve 202 on the next positioner main body 101, then connects the vacuum air pipe 203 with the manual valve 202 of the next positioner main body 101 and performs sealing performance detection, so that other positioner main bodies 101 can be continuously detected during the detection waiting time of the previous positioner main body 101, the detection efficiency of the positioner main body 101 is increased, when the air pressure sensor 204 of the previous positioner main body 101 detects that the air pressure value inside the positioner main body 101 is within the allowable range within a certain time, it indicates that the sealing performance is qualified, when the air pressure sensor 204 detects that the air pressure value inside the positioner main body 101 is outside the allowable range within a certain time, it indicates that the sealing performance is unqualified.

[0024] As Figures 2-4As shown in the figure, in this embodiment, the top surface of the detection table 1 is fixed with a rack 3, and a plurality of locator bodies 101 are placed inside the rack 3. The top surface of the rack 3 is fixed with a red light 301, a yellow light 302 and a green light 303 corresponding to the position of the locator body 101. The red light 301, the yellow light 302 and the green light 303 are electrically connected with the touch PLC all-in-one machine. By setting the red light 301, the yellow light 302 and the green light 303 indicator lights, when starting the vacuum pump 205 to extract the gas inside the locator body 101, the gas pressure sensor 204 detects the gas pressure inside the locator body 101. When the gas pressure reaches the predetermined value, the yellow light 302 corresponding to the locator body 101 is lit, indicating that the test starts. When the gas pressure sensor 204 of the locator body 101 detects that the gas pressure value inside the locator body 101 is within the allowable range within a certain period of time, the green light 303 corresponding to the locator body 101 is lit, indicating that the sealing performance is qualified. When the gas pressure sensor 204 detects that the gas pressure value inside the locator body 101 is outside the allowable range within a certain period of time, the red light 301 corresponding to the locator body 101 is lit, indicating that the sealing performance is unqualified, which facilitates the staff to quickly confirm the test result.

[0025] As shown in the figure, Figures 2-4 In this embodiment, the top surface of the detection table 1 is embedded with a collection box 4. The excess lines of the gas pressure sensor 204, the red light 301, the yellow light 302 and the green light 303 are all collected inside the collection box 4. By setting the collection box 4, the excess lines of the gas pressure sensor 204, the red light 301, the yellow light 302 and the green light 303 can be collected, preventing the lines of the detection table 1 from being messy and affecting the detection work of the staff.

[0026] As shown in the figure, Figures 2-4 In this embodiment, the gas pressure sensor 204 and the manual valve 202 are both sealedly connected with the interface of the locator body 101 through quick connectors. The manual valve 202 is also sealedly connected with the vacuum air pipe 203 through a quick connector. By using quick connectors to connect the gas pressure sensor 204, the manual valve 202 and the vacuum air pipe 203, the staff can quickly disassemble the equipment, increasing the detection speed.

[0027] As shown in the figure, Figures 2-4 In this embodiment, the inside of the detection table 1 is fixed with a storage cabinet 5. The storage cabinet 5 has a partition. By setting the storage cabinet 5, the staff can temporarily place the qualified and unqualified locator bodies 101 for centralized processing.

[0028] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: in use, when the sealing performance of the positioner body 101 needs to be detected, the positioner body 101 to be detected is placed in the inside of the placing frame 3 one by one, then the plugging plate 2 is placed at the rear end of the positioner body 101, and the rubber block 201 is connected with the socket of the positioner body 101 in interference fit, then the manual valve 202 and the air pressure sensor 204 are connected with the front end interface of the positioner body 101 respectively, then the vacuum air pipe 203 is connected with the manual valve 202, at this time, the manual valve 202 is opened, the electromagnetic valve 206 is opened by operating the touch PLC all-in-one machine, and the vacuum pump 205 is started to extract the gas in the positioner body 101, at this time, the air pressure sensor 204 detects the air pressure in the positioner body 101, when the air pressure reaches the predetermined value, the electromagnetic valve 206 is closed, and the vacuum pump 205 is also closed, at this time, the yellow lamp 302 corresponding to the position of the positioner body 101 is lit, indicating that the test is started, the staff closes the manual valve 202, and the vacuum air pipe 203 is detached from the manual valve 202, then the plugging plate 2, the air pressure sensor 204 and the manual valve 202 are installed on the next positioner body 101, then the vacuum air pipe 203 is connected with the manual valve 202 of the next positioner body 101 and the sealing performance is detected, so that the detection of other positioner bodies 101 can be continued during the waiting time of the detection of the previous positioner body 101, the detection efficiency of the positioner body 101 is increased, when the air pressure sensor 204 of the previous positioner body 101 detects that the air pressure value in the positioner body 101 is within the allowable range within a certain time, the green lamp 303 corresponding to the positioner body 101 is lit, indicating that the sealing performance is qualified, when the air pressure sensor 204 detects that the air pressure value in the positioner body 101 is outside the allowable range within a certain time, the red lamp 301 corresponding to the positioner body 101 is lit, indicating that the sealing performance is unqualified.

[0029] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A valve positioner sealing performance automatic detection device, comprising a detection table (1), characterized in that, The top surface of the detection platform (1) is provided with a plurality of locator bodies (101), and the top surface of the detection platform (1) is also provided with a detection assembly for detecting the sealing performance of the locator body (101). The detection assembly comprises a blocking plate (2) arranged at the rear end of the locator body (101), the front side of the blocking plate (2) is fixed to a rubber block (201), the rubber block (201) is connected with the socket of the locator body (101) in an interference fit, a manual valve (202) is connected to the left interface at the front end of the locator body (101), the end of the manual valve (202) away from the locator body (101) is connected with a vacuum air pipe (203), and the right interface at the front end of the locator body (101) is connected with an air pressure sensor (204).

2. The valve positioner sealing performance automatic detection device according to claim 1, characterized in that, The top surface of the detection platform (1) is fixed with a vacuum pump (205) and a touch PLC all-in-one machine, respectively. One end of the vacuum air pipe (203) away from the manual valve (202) is connected with the suction end of the vacuum pump (205), the middle part of the vacuum air pipe (203) is connected with an electromagnetic valve (206), the vacuum air pipe (203) is a metal bellows, and the air pressure sensor (204), the vacuum pump (205) and the electromagnetic valve (206) are electrically connected with the touch PLC all-in-one machine.

3. The apparatus according to claim 2, wherein The top surface of the detection platform (1) is fixed with a placing rack (3), and a plurality of locator bodies (101) are placed in the placing rack (3), respectively. The top surface of the placing rack (3) is fixed with a red light (301), a yellow light (302) and a green light (303) corresponding to the position of the locator body (101). The red light (301), the yellow light (302) and the green light (303) are electrically connected with the touch PLC all-in-one machine.

4. The apparatus according to claim 3, wherein The top surface of the detection platform (1) is embedded with a junction box (4), and the excess lines of the air pressure sensor (204), the red light (301), the yellow light (302) and the green light (303) are collected in the junction box (4).

5. The apparatus according to claim 4, wherein The air pressure sensor (204) and the manual valve (202) are connected with the interface of the locator body (101) through quick connectors, and the manual valve (202) is also connected with the vacuum air pipe (203) through a quick connector.

6. The apparatus according to claim 5, wherein The inside of the detection platform (1) is fixed with a storage cabinet (5), and the storage cabinet (5) has a partition.

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