Safety valve sealing performance testing device

Abstract

The utility model discloses a safety valve sealing performance testing device which comprises a testing box, the left side face of the testing box is fixedly connected with an air pump, the output end of the air pump is fixedly communicated with an air outlet pipe, a safety valve body is arranged in the testing box, and the right end of the air outlet pipe and the left end of the safety valve body are fixedly installed. The right side face of the test box fixedly communicates with a gas conveying pipe, the right end of the safety valve body and the left end of the gas conveying pipe are fixedly installed, and a valve is arranged on the outer surface of the gas conveying pipe. Through cooperation of the water pump, the water inlet pipe and the water outlet pipe, water is pumped and conveyed, water is automatically added into the test box, through cooperation of the air pump, the safety valve body, the air outlet pipe, the air conveying pipe and the valve, after the valve is closed, the air pump supplies air into the safety valve body, whether bubbles appear in water or not is observed, and therefore the sealing performance of the safety valve body is judged. The sealing performance of the safety valve body is tested, and the sealing performance of the safety valve body is effectively tested.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a sealing performance testing device for safety valves. Background Technique

[0002] A safety valve is in a normally closed state under the action of external force. When the medium pressure in the equipment or pipeline rises above the specified value, it prevents the medium pressure in the pipeline or equipment from exceeding the specified value by discharging the medium to the outside of the system. The safety valve belongs to the category of automatic valves and is mainly used on boilers, pressure vessels and pipelines to control the pressure not to exceed the specified value, playing an important protective role in personal safety and equipment operation. Note that the safety valve must undergo a pressure test before it can be used.

[0003] In daily life, the production volume of safety valves in factory production and processing is large, and it is inevitable that there are safety valves with quality problems. Among them, some safety valves have sealing problems, and such safety valves need to be subjected to sealing detection. The existing sealing performance testing devices for safety valves have poor detection effects on safety valves and are not convenient for detecting safety valves.

[0004] Therefore, we propose a sealing performance testing device for safety valves to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sealing performance testing device for safety valves to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sealing performance testing device for safety valves includes a testing box. The left side surface of the testing box is fixedly connected with an air pump. The output end of the air pump is fixedly communicated with an air outlet pipe. Inside the testing box is a safety valve body. The right end of the air outlet pipe is fixedly installed with the left end of the safety valve body. The right side surface of the testing box is fixedly communicated with an air delivery pipe. The right end of the safety valve body is fixedly installed with the left end of the air delivery pipe. A valve is arranged on the outer surface of the air delivery pipe. The left side surface of the testing box is fixedly connected with a fixing plate. The upper surface of the fixing plate is fixedly connected with a water pump. The input end of the water pump is fixedly communicated with a water inlet pipe. The output end of the water pump is fixedly communicated with a water outlet pipe. The outer surface of the water outlet pipe is fixedly communicated with the right side surface of the testing box.

[0008] In a further embodiment, the right side surface of the testing box is fixedly communicated with a drain pipe, and a sealing cover is threadedly connected to the outer surface of the drain pipe.

[0009] In a further embodiment, the bottom surface of the testing box is fixedly connected with four bases, and the left side surface of the testing box is fixedly connected with a storage box.

[0010] In a further embodiment, a support plate is fixedly connected to the left side surface of the test box, and the upper surface of the support plate is in contact with the outer surface of the air pump.

[0011] In a further embodiment, a display board is fixedly connected to the front surface of the test box, and an observation window is provided on the front surface of the test box.

[0012] In a further embodiment, a control panel is fixedly connected to the front surface of the test box.

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

[0014] Through the cooperation of the water pump, the water inlet pipe and the water outlet pipe, the device pumps and conveys water to automatically add water into the test box. Through the cooperation of the air pump, the safety valve body, the air outlet pipe, the air delivery pipe and the valve, after closing the valve, the air pump supplies air into the safety valve body, and observes whether bubbles appear in the water to judge the sealing performance of the safety valve body, so as to realize the test of the sealing performance of the safety valve body and effectively test the sealing performance of the safety valve body. Description of the Drawings

[0015] Figure 1 It is a front view structural schematic diagram of a safety valve sealing performance testing device.

[0016] Figure 2 It is a top view structural schematic diagram of a safety valve sealing performance testing device.

[0017] Figure 3 It is a front sectional view of a safety valve sealing performance testing device.

[0018] Figure 4 It is a bottom view structural schematic diagram of a safety valve sealing performance testing device.

[0019] In the figure: 1, test box; 2, air pump; 3, safety valve body; 4, air outlet pipe; 5, air delivery pipe; 6, valve; 7, fixed plate; 8, water pump; 9, water inlet pipe; 10, water outlet pipe; 11, drain pipe; 12, sealing cover; 13, base; 14, storage box; 15, support plate; 16, display board; 17, observation window; 18, control panel. Detailed Embodiments

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4, in the present utility model, a safety valve sealing performance testing device includes a test box 1. A gas pump 2 is fixedly connected to the left side surface of the test box 1. The output end of the gas pump 2 is fixedly communicated with an air outlet pipe 4. Inside the test box 1, there is a safety valve body 3. The right end of the air outlet pipe 4 is fixedly installed with the left end of the safety valve body 3. A gas transmission pipe 5 is fixedly communicated with the right side surface of the test box 1. The right end of the safety valve body 3 is fixedly installed with the left end of the gas transmission pipe 5. A valve 6 is provided on the outer surface of the gas transmission pipe 5. A fixed plate 7 is fixedly connected to the left side surface of the test box 1. A water pump 8 is fixedly connected to the upper surface of the fixed plate 7. The input end of the water pump 8 is fixedly communicated with a water inlet pipe 9. The output end of the water pump 8 is fixedly communicated with a water outlet pipe 10. The outer surface of the water outlet pipe 10 is fixedly communicated with the right side surface of the test box 1. The safety valve body 3 is tested inside the test box 1. Water can be stored inside the test box 1 to ensure that water will not flow out during the test. The gas pump 2 adds air into the closed space between the air outlet pipe 4, the safety valve body 3 and the gas transmission pipe 5. Combined with the water inside the test box 1, observe whether bubbles appear in the water to judge the sealing performance of the safety valve body 3. When the valve 6 is closed, it blocks the gas or liquid from passing through the gas transmission pipe 5 to ensure that the space between the gas pump 2, the safety valve body 3, the air outlet pipe 4 and the gas transmission pipe 5 is in a closed state. The water pump 8 can pump water to facilitate adding water into the test box 1.

[0024] A drain pipe 11 is fixedly communicated with the right side surface of the test box 1. A sealing cover 12 is threadedly connected to the outer surface of the drain pipe 11. Four base plates 13 are fixedly connected to the bottom surface of the test box 1. A storage frame 14 is fixedly connected to the left side surface of the test box 1. A support plate 15 is fixedly connected to the left side surface of the test box 1. The upper surface of the support plate 15 is in contact with the outer surface of the gas pump 2. The drain pipe 11 can drain the water inside the test box 1 to facilitate the drainage of water. The sealing cover 12 seals the drain pipe 11 to prevent the water inside the test box 1 from draining out randomly. The base plates 13 support the test box 1 to ensure the stability of the test box 1. Tools for installing and disassembling the safety valve body 3 are stored in the storage frame 14 to improve the test efficiency. The support plate 15 supports the gas pump 2 to increase the stability of the gas pump 2.

[0025] A display board 16 is fixedly connected to the front surface of the test box 1. An observation window 17 is provided on the front surface of the test box 1. A control panel 18 is fixedly connected to the front surface of the test box 1. The display board 16 shows that this device is a safety valve body 3 sealing performance testing device, which is beneficial for personnel to identify. Through the observation window 17, it can be observed whether bubbles appear inside the test box 1 to facilitate the observation of bubbles. The control panel 18 is used to control the gas pump 2 and the water pump 8 to improve the test efficiency.

[0026] The working principle of the present utility model is:

[0027] First, install the safety valve body 3 on the installation mechanism of the outlet pipe 4 and the gas transmission pipe 5. Subsequently, use the water pump 8 to pump water and deliver it into the test box 1 until the water submerges the safety valve body 3. After adding water, close the valve 6, and then use the air pump 2 to supply gas. The gas is delivered into the safety valve body 3 after passing through the outlet pipe 4. When bubbles appear in the water, it indicates that there is a sealing problem with the safety valve body 3. When no bubbles appear in the water, it indicates that the safety valve body 3 has good sealing performance. Then, close the air pump 2 and open the valve 6 to complete the test of the safety valve body 3. Then, the water can be drained from the drain pipe 11, and the safety valve body 3 can be disassembled.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A safety valve sealing performance testing device, characterized in that: It includes a test box (1). A gas pump (2) is fixedly connected to the left side surface of the test box (1). The output end of the gas pump (2) is fixedly communicated with an air outlet pipe (4). A safety valve body (3) is arranged inside the test box (1). The right end of the air outlet pipe (4) is fixedly installed with the left end of the safety valve body (3). A gas transmission pipe (5) is fixedly communicated with the right side surface of the test box (1). The right end of the safety valve body (3) is fixedly installed with the left end of the gas transmission pipe (5). A valve (6) is arranged on the outer surface of the gas transmission pipe (5). A fixing plate (7) is fixedly connected to the left side surface of the test box (1). A water pump (8) is fixedly connected to the upper surface of the fixing plate (7). The input end of the water pump (8) is fixedly communicated with a water inlet pipe (9). The output end of the water pump (8) is fixedly communicated with a water outlet pipe (10). The outer surface of the water outlet pipe (10) is fixedly communicated with the right side surface of the test box (1).

2. The safety valve sealing performance testing device according to claim 1, wherein: A drain pipe (11) is fixedly communicated with the right side surface of the test box (1). A sealing cover (12) is threadedly connected to the outer surface of the drain pipe (11).

3. The safety valve sealing performance testing device according to claim 1, wherein: Four bases (13) are fixedly connected to the bottom surface of the test box (1). A storage box (14) is fixedly connected to the left side surface of the test box (1).

4. The safety valve sealing performance testing device according to claim 1, characterized in that: A support plate (15) is fixedly connected to the left side surface of the test box (1). The upper surface of the support plate (15) is in contact with the outer surface of the gas pump (2).

5. The safety valve sealing performance testing device according to claim 1, wherein: A display board (16) is fixedly connected to the front surface of the test box (1). An observation window (17) is arranged on the front surface of the test box (1).

6. The safety valve sealing performance testing device according to claim 1, wherein: A control panel (18) is fixedly connected to the front surface of the test box (1).

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