Valve body testing device

Abstract

The utility model discloses a valve body testing device, and particularly discloses a valve body testing device which is characterized in that heat conduction liquid is contained in a bath heat box, a coil pipe is further arranged in the bath heat box, and the input end and the output end of the coil pipe respectively extend out of the bath heat box; the heating box is used for containing and communicating with the valve body and heating the valve body from the outside. The cooling box is also used for containing and communicating with the valve body and cooling the valve body from the outside. A transportation substance for testing the valve body is introduced from the input end of the coil pipe, and the coil pipe is arranged in the heat conduction liquid, so that the temperature of the transportation substance in the coil pipe is increased or reduced; the input ends of the heating box and the cooling box are respectively communicated with the output end of the coil pipe, the input ends of the heating box and the cooling box are internally communicated with one end of the valve body, and the output ends of the heating box and the cooling box are internally communicated with the other end of the valve body, so that a transported substance can pass through the valve body in the heating box or the valve body in the cooling box; and the water flows out from the output end of the heating box or the cooling box. The technical scheme of the utility model aims to improve the reliability of a valve body test result.

Description

Technical Field

[0001] The utility model relates to the technical field of valve body detection, in particular to a valve body testing device. Background Art

[0002] The types of valve bodies include high, medium and low pressure valves, butterfly valves, gate valves, ball valves, check valves, globe valves, etc. After the valve body is completed in production and processing, various tests are usually required, such as weather resistance test and airtightness test, etc., to ensure that the performance of each valve body meets the existing standard requirements. When the existing testing device detects the airtightness of the valve body, the valve body is often exposed to the current environment for testing. During the testing process, the actual use scenario is not considered, resulting in unreliable test results. The valve bodies flowing into the market have quality problems, and in severe cases, it may even endanger people's safety. Content of the Utility Model

[0003] The purpose of the utility model is to provide a valve body testing device to improve the reliability of test results.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A valve body testing device includes a heating box, a cooling box and a heat bath box;

[0006] The heat bath box is filled with a heat-conducting liquid, and a coil pipe is also arranged in the heat bath box. The input end and the output end of the coil pipe respectively extend out of the heat bath box;

[0007] The heating box is used for placing and connecting the valve body, and heating the valve body from the outside; the cooling box is also used for placing and connecting the valve body, and cooling the valve body from the outside;

[0008] Wherein, the transportation substance for testing the valve body is introduced from the input end of the coil pipe. The coil pipe is placed in the heat-conducting liquid, so as to increase or decrease the temperature of the transportation substance in the coil pipe. The heating box and the cooling box respectively have an input end and an output end. The input ends of the heating box and the cooling box are respectively communicated with the output end of the coil pipe. The input ends of the heating box and the cooling box are communicated with one end of the valve body inside, and the output ends of the heating box and the cooling box are communicated with the other end of the valve body inside, so that the transportation substance can pass through the valve body in the heating box or the valve body in the cooling box, and flow out from the output end of the heating box or the cooling box.

[0009] In an embodiment, the heat bath box is rotationally connected with the coil pipe, and rotating the coil pipe can separate the coil pipe from the heat-conducting liquid.

[0010] In one embodiment, the bath heat box has a first tank body and a second tank body. The heat-conducting liquid is divided into a heating liquid and a cooling medium. The first tank body is used for containing the heating liquid, and the second tank body is used for containing the cooling medium.

[0011] In one embodiment, the heat-conducting liquid is heat-conducting oil, and the bath heat box is connected with an oil temperature machine. The input end and the output end of the oil temperature machine are respectively communicated with the bath heat box.

[0012] In one embodiment, a pressure regulating valve, a first pressure gauge and a second pressure gauge are further included. The output end of the pressure regulating valve is connected with the input end of the coil pipe. The first pressure gauge is arranged between the pressure regulating valve and the coil pipe; the second pressure gauge is connected to the output end of the heating box or the cooling box.

[0013] In one embodiment, a first temperature sensor and a second temperature sensor are further included. The first temperature sensor is arranged at the output end of the coil pipe, and the second temperature sensor is arranged at the output end of the heating box and / or the cooling box.

[0014] In one embodiment, a standby pipeline is further included. The output end of the standby pipeline is communicated with the output end of the coil pipe. A pressure relief valve is arranged on the standby pipeline, and the pressure relief valve is used for controlling the on-off of the standby pipeline.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the technical solution of the utility model, by arranging a heating box, a cooling box and a bath heat box, the working conditions of the valve body at different temperatures are simulated. Other performance tests of the valve body are carried out under the experimental conditions considering the weather resistance of the valve body, which improves the reliability of the test results. Specifically, the transportation substance for testing the valve body is introduced into the coil pipe, and the coil pipe is placed in the heat-conducting liquid in the bath heat box. The temperature of the transportation substance in the coil pipe is increased or decreased through the heat conduction principle. The real temperature of the transportation substance passing through the valve body is simulated, such as hot water, hot oil, steam, etc. with a higher temperature for the transportation substance; or cold water, cold air, etc. in an underground pipeline with a lower temperature. Further, the same valve body is respectively installed on the heating box and the cooling box for testing. The heating box heats from the outside of the valve body, simulating the working conditions of the valve body at an extremely high ambient temperature; the cooling box cools from the outside of the valve body, simulating the working conditions of the valve body at a lower ambient temperature. Therefore, the technical solution of the utility model simulates the working conditions of the valve body at different ambient temperatures and the situation of transporting transportation substances at different temperatures, increases the experimental conditions of the weather resistance of the valve body, and thus improves the reliability of the test data of the valve body. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present invention.

[0019] Figure 1 It is a schematic structural diagram of a valve body testing device;

[0020] Figure 2 It is a schematic diagram of a partial structure of a valve body testing device;

[0021] Illustration: 100, valve body testing device; 110, heating box; 120, cooling box; 130, bath heating box; 131, first tank; 132, second tank; 140, coil; 150, oil temperature machine; 160, pressure regulating valve; 171, first pressure gauge; 172, second pressure gauge; 173, third pressure gauge; 181, first temperature sensor; 182, second temperature sensor; 190, standby pipeline; 191, pressure relief valve; 200, valve body. Detailed implementation manners

[0022] To make the technical objectives, features, and advantages of the present invention more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present.

[0024] The technical solution of the present utility model will be further described below in conjunction with the drawings and through specific embodiments.

[0025] An embodiment of the present utility model provides a valve body testing device 100.

[0026] Please refer to Figure 1 , in one embodiment, the valve body testing device 100 includes a heating box 110, a cooling box 120, and a heat bath box 130;

[0027] The heat bath box 130 is filled with a heat-conducting liquid, and a coil 140 is further provided in the heat bath box 130. The input end and the output end of the coil 140 respectively extend out of the heat bath box 130;

[0028] The heating box 110 is used to place and communicate with the valve body 200, and heat the valve body 200 from the outside; the cooling box 120 is also used to place and communicate with the valve body 200, and cool the valve body 200 from the outside;

[0029] Among them, the transport substance for testing the valve body 200 is introduced from the input end of the coil 140. The coil 140 is placed in the heat-conducting liquid, so as to increase or decrease the temperature of the transport substance in the coil 140. The heating box 110 and the cooling box 120 respectively have an input end and an output end. The input ends of the heating box 110 and the cooling box 120 are respectively communicated with the output end of the coil 140. The input ends of the heating box 110 and the cooling box 120 are communicated with one end of the valve body 200 inside, and the output ends of the heating box 110 and the cooling box 120 are communicated with the other end of the valve body 200 inside, so that the transport substance can pass through the valve body 200 in the heating box 110 or the valve body 200 in the cooling box 120, and flow out from the output end of the heating box 110 or the cooling box 120.

[0030] It can be understood that in the technical solution of the present utility model, by setting the heating box 110, the cooling box 120 and the bath heating box 130, the working conditions of the valve body 200 at different temperatures are simulated, and other performance tests of the valve body 200 are carried out under the experimental conditions considering the weather resistance of the valve body 200, which improves the reliability of the test results. Specifically, the transport substance for testing the valve body 200 is introduced into the coil 140, and the coil 140 is placed in the heat-conducting liquid in the bath heating box 130, and the temperature of the transport substance in the coil 140 is increased or decreased through the principle of heat conduction. The real temperature of the transport substance passing through the valve body 200 is simulated, such as the transport substance being hot water, hot oil, or steam with a higher temperature; or cold water, cold air, etc. in an underground pipeline with a lower temperature. Further, the same valve body 200 is respectively installed in the heating box 110 and the cooling box 120 for testing. The heating box 110 heats from the outside of the valve body 200, simulating the working conditions of the valve body 200 at an extremely high ambient temperature; the cooling box 120 cools from the outside of the valve body 200, simulating the working conditions of the valve body 200 at a lower ambient temperature. Therefore, the technical solution of the present utility model simulates the working conditions of the valve body 200 at different ambient temperatures and the situation of transporting transport substances at different temperatures, increases the experimental conditions for the weather resistance of the valve body 200, and thus improves the reliability of the test data of the valve body 200.

[0031] It should also be noted that the above heating box 110 is an electric heating box with a heat preservation function and is made of ceramic material. The above cooling box 120 includes a refrigeration coil and an air-cooling component, and cools the valve body 200 in the form of a refrigeration coil and a fan.

[0032] Please refer to Figure 2 , in an embodiment of the present utility model, the bath heating box 130 is rotatably connected to the coil 140, and rotating the coil 140 can separate the coil 140 from the heat-conducting liquid.

[0033] It can be understood that rotating the coil 140 can separate the coil 140 from the heat-conducting liquid, and further expose the coil 140 to the air, simulating the real-time temperature of the transport substance in the current environment.

[0034] Please continue to refer to Figure 2 , in an embodiment, the bath heating box 130 has a first tank 131 and a second tank 132, the heat-conducting liquid is divided into heating liquid and cooling liquid, the first tank 131 is used to contain the heating liquid, and the second tank 132 is used to contain the cooling medium. It can be understood that converting the heat-conducting liquid from a higher temperature to a lower temperature has a long temperature change response time, which is not conducive to improving the test efficiency of the valve body 200.

[0035] Optionally, the cooling medium may be an ice-water mixture, water, or other liquid. Please refer to Figure 1 , in a specific embodiment, the heat-conducting liquid is heat-conducting oil, the bath heat box 130 is connected to an oil temperature machine 150, and the input end and the output end of the oil temperature machine 150 are respectively communicated with the bath heat box 130.

[0036] It can be understood that the oil temperature machine 150 can accurately adjust and maintain the temperature of the heat-conducting oil in the bath heat box 130, which is beneficial to stabilizing the experimental variables during the detection of the valve body 200 and improving the reproducibility of the experimental results. And the above oil temperature machine is a prior art, so it will not be described in detail here.

[0037] Please continue to refer to Figure 1 , the valve body testing device 100 further includes a pressure regulating valve 160, a first pressure gauge 171, and a second pressure gauge 172. The output end of the pressure regulating valve 160 is connected to the input end of the coil 140, and the first pressure gauge 171 is disposed between the pressure regulating valve 160 and the coil 140; the second pressure gauge 172 is connected to the output end of the heating box 110 or the cooling box 120.

[0038] It can be understood that the pressure regulating valve 160 is provided to adjust the pressure or flow rate entering the coil 140 so that the transported substance in the coil 140 can meet the temperature after heating or cooling. The first pressure gauge 171 is disposed between the pressure regulating valve 160 and the coil 140, and can guide the actual flow rate or air pressure in the coil 140 after the pressure regulating valve 160 is adjusted. The second pressure gauge 172 is also connected to the output end of the heating box 110 or the cooling box 120. It can be understood that the first pressure gauge 171 and the second pressure gauge 172 are respectively located at both ends of the valve body 200, and the first pressure gauge 171 and the second pressure gauge 172 mainly form the data of the test results of the valve body 200.

[0039] Please refer to Figure 1 , in a specific embodiment of the present invention, the valve body testing device 100 further includes a first temperature sensor 181 and a second temperature sensor 182. The first temperature sensor 181 is disposed at the output end of the coil 140, and the second temperature sensor 182 is disposed at the output end of the heating box 110 and / or the cooling box 120.

[0040] It can be understood that the first temperature sensor 181 is used to detect the temperature of the transported substance flowing out from the output end of the coil 140; the second temperature sensor 182 is used to detect the temperature of the transported substance flowing out from the heating box 110 and / or the cooling box 120; the first temperature sensor 181 and the second temperature sensor 182 are used to form experimental variables for the test results of the valve body 200, improving the reproducibility of the test data.

[0041] Further, the number of the second temperature sensors 182 is two, and the two second temperature sensors 182 are respectively arranged at the output ends of the heating box 110 and the cooling box 120.

[0042] Further, a third pressure gauge 173 is also arranged near the input ends of the heating box 110 and the cooling box 120. The valve body 200 is arranged between the third pressure gauge 173 and the second pressure gauge 172, so that the third pressure gauge 173 and the second pressure gauge 172 form the experimental results of the valve body 200 test. It can also be understood that compared with the first pressure gauge 171, the third pressure gauge 173 is closer to the valve body 200, so that the test results of the valve body testing device 100 are more accurate.

[0043] As Figure 1 shown, in a preferred embodiment, the valve body testing device 100 further includes a spare pipeline 190. The output end of the spare pipeline 190 is communicated with the output end of the coil 140. The spare pipeline 190 is provided with a pressure relief valve 191, and the pressure relief valve 191 is used to control the on-off of the spare pipeline 190.

[0044] It can be understood that in the case of an emergency failure of the valve body testing device 100, the pressure relief valve 191 is manually opened to relieve the pressure of the entire pipeline.

[0045] Optionally, in order to better protect the heating box 110 and the cooling box 120, the output end of the spare pipeline 190 is connected to the third pressure gauge 173. When the pressure relief valve 191 is opened, the heating box 110 and the cooling box 120 form a short circuit.

[0046] The above is the case. The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A valve body testing device, characterized in that: Including heating box, cooling box and bath heating box; The bath heating box contains a heat transfer liquid, and a coil is also arranged in the bath heating box, and the input end and the output end of the coil extend out of the bath heating box respectively; The heating box is used to place and connect the valve body, and heat the valve body from the outside; the cooling box is also used to place and connect the valve body, and cool the valve body from the outside; Among them, the transport material for testing the valve body is introduced from the input end of the coil, and the coil is placed in the heat transfer fluid, so as to increase or decrease the temperature of the transport material in the coil; the heating box and the cooling box respectively have an input end and an output end, and the input ends of the heating box and the cooling box are respectively connected with the output ends of the coil, and the input ends of the heating box and the cooling box are connected with one end of the valve body in their interiors, and the output ends of the heating box and the cooling box are connected with the other end of the valve body in their interiors, so that the transport material can pass through the valve body in the heating box or the valve body in the cooling box, and flow out from the output end of the heating box or the cooling box.

2. The valve body testing device according to claim 1, characterized in that: The bath heating box is rotatably connected to the coil, and rotating the coil can separate the coil from the heat transfer liquid.

3. The valve body testing device according to claim 2, characterized in that: The bath heating box has a first tank body and a second tank body, the heat transfer liquid is divided into a heating liquid and a cooling medium, the first tank body is used to hold the heating liquid, and the second tank body is used to hold the cooling medium.

4. The valve body testing device according to claim 1, characterized in that: The heat transfer liquid is heat transfer oil, the bath heating box is connected to an oil temperature machine, and the input end and the output end of the oil temperature machine are respectively connected to the bath heating box.

5. The valve body testing device according to claim 1, characterized in that: It also includes a pressure regulating valve, a first pressure gauge and a second pressure gauge. The output end of the pressure regulating valve is connected to the input end of the coil. The first pressure gauge is arranged between the pressure regulating valve and the coil. The second pressure gauge is connected to the output end of the heating box or the cooling box.

6. The valve body testing device according to claim 5, characterized in that: It also includes a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is arranged at the output end of the coil, and the second temperature sensor is arranged at the output end of the heating box and / or the cooling box.

7. The valve body testing device according to claim 6, characterized in that: It also includes a spare pipeline, the output end of which is connected to the output end of the coil, and the spare pipeline is provided with a pressure relief valve, which is used to control the on and off of the spare pipeline.

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