Valve rod filler low-temperature sealing performance testing device

Abstract

The utility model relates to the technical field of valve rod testing, in particular to a valve rod filler low-temperature sealing performance testing device which comprises a reaction detection shell, a condensation pipe condensation assembly, a first telescopic rod, a data display and operation all-in-one machine, a sealing detection main board, a sealing cover plate, a clamping plate, a second telescopic rod and a supporting adjusting arm. A sealing detection main board is installed on the upper surface of the reaction detection shell, a data display and operation all-in-one machine is welded to the side edge surface of the sealing detection main board, a sealing cover plate is clamped to the inner ring surface of the reaction detection shell in a limiting mode, and a condensation pipe condensation assembly is installed on the upper surface of the low-temperature density testing device bearing main body. According to the low-temperature sealing performance testing device for the valve rod filler, the air pressure in the reaction detection shell is detected through the arranged sealing detection main board, and the detected data is output to the data display operation all-in-one machine, so that the valve rod filler can be subjected to integrated use detection.

Description

Technical Field

[0001] This utility model relates to the field of valve stem testing technology, and in particular to a valve stem packing low-temperature sealing performance testing device. Background Technology

[0002] The valve stem is a crucial component of a valve, used for transmission. It connects to the actuator or handle at the top and directly drives the valve core to move or rotate, thus achieving the valve's opening, closing, or regulating function. During valve opening and closing, the valve stem is not only a moving and force-bearing component but also a sealing component. Furthermore, it is subjected to the impact and corrosion of the medium and friction with the packing. Therefore, when selecting valve stem materials, it is essential to ensure sufficient strength, good impact toughness, scratch resistance, and corrosion resistance at the specified temperature. As a vulnerable component, the valve stem's machinability and heat treatment properties should also be considered when selecting materials. When using the valve stem, packing is required, and its sealing performance must be guaranteed after packing.

[0003] In summary, traditional testing devices are not sufficiently sophisticated in their integrated testing of valve stem packing, which affects the results of valve stem packing seal testing. Therefore, there is a particular need for a low-temperature valve stem packing sealing performance testing device. Utility Model Content

[0004] The purpose of this invention is to provide a low-temperature sealing performance testing device for valve stem packing, in order to solve the problem that the traditional testing devices mentioned in the background art have insufficient detection functions when performing integrated testing of valve stem packing, which affects the results of valve stem packing sealing test.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve stem packing low-temperature sealing performance testing device, comprising a low-temperature density testing device support body, wherein the bottom surface of the low-temperature density testing device support body is fitted with anti-slip fixing feet, and the upper surface of the low-temperature density testing device support body is provided with a detection mechanism;

[0006] The testing mechanism includes a reaction detection shell, a condenser tube condenser assembly, a first telescopic rod, a data display and operation integrated machine, a sealing detection main board, a sealing cover plate, a clamping plate, a second telescopic rod, and a support adjustment arm. The sealing detection main board is installed on the upper surface of the reaction detection shell, and the data display and operation integrated machine is welded to the side surface of the sealing detection main board. The sealing cover plate is limited and snapped onto the inner ring surface of the reaction detection shell. The condenser tube condenser assembly is installed on the upper surface of the low-temperature density testing device support body. The first telescopic rod is installed on the inner ring surface of the low-temperature density testing device support body. The support adjustment arm is installed on the side surface of the first telescopic rod, and the second telescopic rod is installed on the side surface of the support adjustment arm. The clamping plate is fixedly connected to the side surface of the second telescopic rod.

[0007] Preferably, a valve stem body is installed on the inner ring surface of the support adjustment arm, and the valve stem body is connected to the support adjustment arm, the second telescopic rod, and the low-temperature density testing device bearing body through the support adjustment arm, the second telescopic rod, and the low-temperature density testing device bearing body.

[0008] Preferably, the clamping plate is connected to the support adjustment arm via a second telescopic rod, and there are multiple second telescopic rods.

[0009] Preferably, the condenser tube condenser assembly is disposed on both sides of the reaction detection shell, and the condenser tube condenser assembly is symmetrically arranged with the vertical center line of the supporting body of the low temperature density testing device as the axis of symmetry.

[0010] Preferably, the inner surface of the reaction detection shell is filled with a filler assembly, and the filler assembly is connected between the reaction detection shell and the supporting body of the low-temperature density testing device.

[0011] Preferably, the support adjustment arm is connected to the low-temperature density testing device bearing body through the first telescopic rod, and the first telescopic rod and the low-temperature density testing device bearing body are matched in size.

[0012] Preferably, the data display and operation integrated machine is connected between the sealed detection motherboard and the reaction detection shell, and the bottom detection head of the sealed detection motherboard penetrates the surface of the reaction detection shell and extends into the interior of the reaction detection shell.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The established testing mechanism facilitates integrated testing of the valve stem packing's sealing performance in low-temperature environments. When testing the valve stem packing, the valve stem body is clamped between the support adjustment arm and the clamping plate. The second telescopic rod is then activated, stably clamping the valve stem body. The first telescopic rod is then activated, pulling the clamped valve stem body. Before pulling, the condenser assembly is activated to cool the packing assembly inside the testing mechanism. Pushing the valve stem body pressurizes the reaction detection shell. The sealing detection mainboard measures the internal pressure and outputs the data to the integrated data display and operation unit. This integrated testing of the valve stem packing fulfills the requirements for integrated testing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a side sectional view of the present invention.

[0018] Figure 4 This is a side view of the structure of this utility model;

[0019] Figure 5 This is a bottom view of the structure of this utility model.

[0020] In the diagram: 1. Low-temperature density testing device supporting body; 2. Testing mechanism; 201. Reaction detection shell; 202. Condenser tube condenser assembly; 203. First telescopic rod; 204. Data display and operation integrated machine; 205. Sealing detection main board; 206. Sealing cover plate; 207. Clamping plate; 208. Second telescopic rod; 209. Support adjustment arm; 3. Valve stem body; 4. Packing assembly; 5. Anti-slip fixing feet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5This utility model provides a technical solution: a valve stem packing low-temperature sealing performance testing device, comprising a low-temperature density testing device support body 1, with anti-slip fixing feet 5 attached to the bottom surface of the low-temperature density testing device support body 1, and a detection mechanism 2 provided on the upper surface of the low-temperature density testing device support body 1. The detection mechanism 2 includes a reaction detection shell 201, a condenser tube condenser assembly 202, a first telescopic rod 203, a data display and operation integrated machine 204, a sealing detection main board 205, a sealing cover plate 206, and a clamping plate 207. The second telescopic rod 208 and the support adjustment arm 209 are mounted on the upper surface of the reaction detection shell 201. A sealing detection main board 205 is installed on the upper surface of the reaction detection shell 201. A data display and operation integrated machine 204 is welded to the side surface of the sealing detection main board 205. A sealing cover plate 206 is limited and snapped onto the inner ring surface of the reaction detection shell 201. A condenser tube condenser assembly 202 is mounted on the upper surface of the low-temperature density testing device support body 1. A first telescopic rod 203 is mounted on the inner ring surface of the low-temperature density testing device support body 1. The side of the first telescopic rod 203 is... A support adjustment arm 209 is mounted on the surface, and a second telescopic rod 208 is mounted on the side surface of the support adjustment arm 209. A clamping plate 207 is fixedly connected to the side surface of the second telescopic rod 208. In use, the valve stem body 3 needs to be clamped between the support adjustment arm 209 and the clamping plate 207. Then, the second telescopic rod 208 needs to be opened. After the second telescopic rod 208 is activated, it can stably clamp the valve stem body 3. Then, the first telescopic rod 203 needs to be activated. After the first telescopic rod 203 is activated, This allows the valve stem body 3 to be pulled. Before pulling, the condenser assembly 202 needs to be activated. Then, the packing assembly 4 inside the detection mechanism 2 can be cooled. After pushing the valve stem body 3, the inside of the reaction detection shell 201 can be pressurized. The pressure inside the reaction detection shell 201 is detected by the sealing detection main board 205, and the detected data is output to the data display and operation integrated machine 204. In this way, the valve stem packing can be tested in an integrated manner.

[0023] Furthermore, a valve stem body 3 is installed on the inner ring surface of the support adjustment arm 209, and the valve stem body 3 is connected to the low-temperature density testing device support body 1 through the support adjustment arm 209 and the second telescopic rod 208. The valve stem body 3, which is connected to the low-temperature density testing device support body 1 through the support adjustment arm 209 and the second telescopic rod 208, facilitates the connection between the valve stem body 3 and the low-temperature density testing device support body 1.

[0024] Furthermore, the clamping plate 207 is connected to the support adjustment arm 209 via the second telescopic rod 208, and there are multiple second telescopic rods 208. The multiple second telescopic rods 208 facilitate the connection between the clamping plate 207 and the support adjustment arm 209.

[0025] Furthermore, the condenser tube condenser assembly 202 is disposed on both sides of the reaction detection shell 201, and the condenser tube condenser assembly 202 is symmetrically arranged with the vertical center line of the low-temperature density testing device support body 1 as the axis of symmetry. The condenser tube condenser assembly 202, which is symmetrically arranged with the vertical center line of the low-temperature density testing device support body 1 as the axis of symmetry, can facilitate the use of cooling and temperature reduction for the inside of the reaction detection shell 201.

[0026] Furthermore, the inner surface of the reaction detection shell 201 is filled with a filler assembly 4, and the filler assembly 4 is connected between the reaction detection shell 201 and the low-temperature density testing device support body 1. The filler assembly 4, which is connected between the reaction detection shell 201 and the low-temperature density testing device support body 1, facilitates a stable connection between the filler assembly 4 and the low-temperature density testing device support body 1.

[0027] Furthermore, the support adjustment arm 209 is connected to the low-temperature density testing device support body 1 via the first telescopic rod 203, and the first telescopic rod 203 and the low-temperature density testing device support body 1 are matched in size. The first telescopic rod 203, which is matched in size with the low-temperature density testing device support body 1, can be easily placed in the low-temperature density testing device support body 1 and then protected by a snap-fit ​​mechanism.

[0028] Furthermore, the data display and operation all-in-one machine 204 is connected to the sealing detection motherboard 205 and the reaction detection shell 201. The bottom detection head of the sealing detection motherboard 205 penetrates the surface of the reaction detection shell 201 and extends into the interior of the reaction detection shell 201. The sealing detection motherboard 205, which penetrates the surface of the reaction detection shell 201 and extends into the interior of the reaction detection shell 201, facilitates the use detection of the internal air pressure of the data display and operation all-in-one machine 204.

[0029] Working principle: When the valve stem packing needs to be tested, the valve stem body 3 needs to be clamped between the support adjusting arm 209 and the clamping plate 207. Then, the second telescopic rod 208 needs to be opened. After the second telescopic rod 208 is activated, the valve stem body 3 can be stably clamped. Then, the first telescopic rod 203 needs to be activated. After the first telescopic rod 203 is activated, the clamped valve stem body 3 can be pulled. Before pulling, the condenser assembly 202 needs to be activated. Then, the packing assembly 4 inside the detection mechanism 2 can be cooled. After pushing the valve stem body 3, the inside of the reaction detection shell 201 can be pressurized. The sealing detection main board 205 detects the air pressure inside the reaction detection shell 201 and outputs the detected data to the data display and operation integrated machine 204. In this way, the valve stem packing can be tested in an integrated manner.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve stem packing low-temperature sealing performance testing device, comprising a low-temperature density testing device support body (1), characterized in that: The bottom surface of the low-temperature density testing device support body (1) is fitted with anti-slip fixing feet (5), and the upper surface of the low-temperature density testing device support body (1) is provided with a detection mechanism (2). The detection mechanism (2) includes a reaction detection shell (201), a condenser tube condenser assembly (202), a first telescopic rod (203), a data display and operation integrated machine (204), a sealing detection main board (205), a sealing cover plate (206), a clamping plate (207), a second telescopic rod (208), and a support adjustment arm (209). The sealing detection main board (205) is installed on the upper surface of the reaction detection shell (201), and the data display and operation integrated machine (204) is welded to the side surface of the sealing detection main board (205). The inner ring surface of the low-temperature density testing device is limited and snapped with a sealing cover plate (206). The upper surface of the supporting body (1) of the low-temperature density testing device is equipped with a condenser tube condenser assembly (202). The inner ring surface of the supporting body (1) of the low-temperature density testing device is equipped with a first telescopic rod (203). The side surface of the first telescopic rod (203) is equipped with a support adjustment arm (209). The side surface of the support adjustment arm (209) is equipped with a second telescopic rod (208). The side surface of the second telescopic rod (208) is fixedly connected with a clamping plate (207).

2. The valve stem packing low-temperature sealing performance testing device according to claim 1, characterized in that: The inner ring surface of the support adjustment arm (209) is provided with a valve stem body (3), and the valve stem body (3) is connected to the support adjustment arm (209), the second telescopic rod (208), and the low temperature density testing device bearing body (1) through the support adjustment arm (209) and the second telescopic rod (208).

3. The valve stem packing low-temperature sealing performance testing device according to claim 1, characterized in that: The clamping plate (207) is connected to the support adjustment arm (209) via the second telescopic rod (208), and there are multiple second telescopic rods (208).

4. The valve stem packing low-temperature sealing performance testing device according to claim 1, characterized in that: The condenser tube condenser assembly (202) is disposed on both sides of the reaction detection shell (201), and the condenser tube condenser assembly (202) is symmetrically arranged with the vertical center line of the low temperature density testing device support body (1) as the axis of symmetry.

5. The valve stem packing low-temperature sealing performance testing device according to claim 1, characterized in that: The inner surface of the reaction detection shell (201) is filled with a filler assembly (4), and the filler assembly (4) is connected between the reaction detection shell (201) and the low temperature density testing device support body (1).

6. The valve stem packing low-temperature sealing performance testing device according to claim 1, characterized in that: The support adjustment arm (209) is connected to the low-temperature density testing device bearing body (1) through the first telescopic rod (203), and the first telescopic rod (203) and the low-temperature density testing device bearing body (1) are matched in size.

7. The valve stem packing low-temperature sealing performance testing device according to claim 1, characterized in that: The data display and operation all-in-one machine (204) is connected between the sealing detection motherboard (205) and the reaction detection shell (201), and the bottom detection head of the sealing detection motherboard (205) penetrates the surface of the reaction detection shell (201) and extends into the interior of the reaction detection shell (201).

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