Energy-saving and low-consumption valve testing device

Abstract

The utility model relates to the technical field of valve detection, in particular to an energy-saving and low-consumption valve testing device, which comprises a tank body and a plurality of valve pipes, an independent accommodating space is constructed in the tank body, an air inlet communicated with the accommodating space is arranged on the outer side of the tank body, each valve pipe is fixedly connected to the outer side of the tank body, and the valve pipes are connected with the air inlet. All the valve pipes are communicated with the interior of the containing space. According to the valve testing device, the effect of stabilizing pressure is achieved through the independent containing space in the tank body and the air inlet formed in the outer side of the tank body, the problem that in a traditional method, due to the large gas compression ratio, the pressure value fluctuation amplitude is large is solved, the probability of valve damage is reduced, and the service life of the valve is prolonged. And a plurality of valve pipes communicated with the accommodating space are arranged on the outer side of the tank body, so that a plurality of valves can be tested at the same time, the test time is saved, and the loss of compressed gas in the test process is reduced.

Description

Technical Field

[0001] The utility model relates to a valve testing device, in particular to an energy-saving and low-consumption valve testing device. Background Art

[0002] When valves are accepted at the site, they need to be subjected to pressure tests and tightness tests. In the traditional valve testing process, the single valve series test method is usually adopted. In this method, only one valve or a small number of valves in series are pressure tested each time. The specific operation is to connect the valves in series in sequence, and then introduce compressed gas into the air inlet at the end valve.

[0003] However, the traditional method of testing a single valve or a small number of valves in series has significant shortcomings. First, due to the large compression ratio of the gas and the lack of an effective buffer zone, the pressure value will fluctuate during the test and cannot be stabilized, causing the valve to be easily damaged. This not only increases the valve damage rate during the test, but also increases maintenance and replacement costs. Secondly, this traditional method has a low utilization rate of compressed gas and is extremely inefficient when faced with a large number of valve testing needs, which seriously affects the progress and overall benefits of the project. Therefore, the existing technology urgently needs a valve testing device that can improve testing efficiency, reduce losses, and stabilize pressure. Utility Model Content

[0004] The purpose of the utility model is to provide an energy-saving and low-consumption valve testing device which connects a plurality of valve pipes to a tank body to provide a stable pressure during the valve testing process and can test a plurality of valves at the same time, thereby improving the testing efficiency, reducing valve loss and stabilizing the gas pressure.

[0005] The technical solution adopted by the present invention to solve the above problems is: an energy-saving and low-consumption valve testing device, comprising:

[0006] A tank body, wherein an independent accommodating space is provided inside the tank body, and an air inlet communicating with the accommodating space is provided on the outside of the tank body;

[0007] A plurality of valve tubes are provided, each of the valve tubes is arranged on the outside of the tank body, and the interior of each valve tube is communicated with the interior of the accommodating space.

[0008] Preferably, the tank body includes a tank body and two heads, the tank body is a hollow tube, and the two heads are respectively arranged at both ends of the hollow tube in a sealed connection manner to form the accommodating space through the inner wall of the tank body and the opposite sides of the two heads.

[0009] The outer peripheral side of the tank body is configured with a plurality of pipe holes communicating with the accommodating space, and the air inlet is arranged at one of the sealing heads.

[0010] Preferably, each of the valve tubes includes a tube body and a connecting structure arranged at one end of the tube body, and one end of each of the tube bodies facing away from the connecting structure is fixedly connected to each of the tube holes in a one-to-one correspondence, and the tube body and the tube holes are sealed.

[0011] Preferably, the nominal diameter of the pipe body is any value between 15 mm and 20 mm, and the nominal pressure of the pipe body is 1.6 MPa or 2.5 MPa.

[0012] Preferably, one end of the tube body away from the connection structure is connected to the tank body by welding.

[0013] Preferably, the connection structure is a threaded structure.

[0014] Preferably, the connecting mechanism is a connecting flange, and the connecting flange is fixedly connected to one end of the tube body facing away from the tank body.

[0015] Preferably, the connecting flange is connected to the end of the tube body facing away from the tank body by welding.

[0016] Preferably, the above-mentioned valve testing device also includes a pressure gauge and a safety valve. The pressure gauge is installed at the connecting structure of one of the valve pipes to display the internal pressure of the tank body. The safety valve is installed at the connecting structure of another valve pipe to discharge the gas of the tank body after the internal air pressure of the tank body exceeds a preset value. The connecting structures of the remaining valve pipes are all connected to the valve.

[0017] Beneficial effects in the embodiments of the present application

[0018] This energy-saving and low-consumption valve testing device stabilizes the pressure through the independent accommodating space inside the tank and the air inlet arranged on the outside of the tank. It overcomes the problem of large pressure fluctuations caused by the large gas compression ratio in traditional methods and reduces the probability of valve damage. By arranging multiple valve pipes connected to the accommodating space on the outside of the tank, multiple valves can be tested at the same time, which not only saves test time but also reduces the loss of compressed gas during the test.

[0019] This energy-saving and low-consumption valve testing device, by installing pressure gauges and safety valves at the connection structures of different valve pipes, overcomes the problems of traditional valve pressure testing devices that are unable to monitor the pressure changes inside the tank in real time during the test and quickly release pressure when the tank is over-pressurized. It plays the role of monitoring the internal pressure of the tank and automatically releasing excessive air pressure, achieving the effect of real-time pressure monitoring and protecting equipment safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural schematic diagram of an embodiment of the present utility model.

[0021] Figure 2 It is a side view of an embodiment of the present utility model.

[0022] Among them: 100, valve test device; 110, tank body; 111, tank body; 112, head; 120, valve pipe; 121, pipe body; 122, connection structure; 130, mounting seat. DETAILED DESCRIPTION

[0023] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. 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 indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0026] See also Figures 1 to 2, provides a valve testing device 100 in a preferred embodiment of the present application, comprising a tank body 110 and a plurality of valve tubes 120. The internal structure of the tank body 110 is provided with an independent accommodating space, and the outer side of the tank body 110 is provided with an air inlet (not shown in the figure) connected to the accommodating space. Each valve tube 120 is fixedly connected to the outer side of the tank body 110, and each valve tube 120 is connected to the interior of the accommodating space. The valve testing device 100 plays a role in stabilizing the pressure through the independent accommodating space inside the tank body 110 and the air inlet provided on the outer side of the tank body 110, overcoming the problem of fluctuating pressure values ​​caused by the large gas compression ratio in the traditional method, and reducing the valve damage rate. By providing multiple valve tubes 120 connected to the accommodating space on the outer side of the tank body 110, multiple valves can be tested at the same time, which not only saves test time but also reduces the loss of compressed gas during the test.

[0027] Specifically, the tank body 110 comprises a tank body 111 and two end caps 112. The tank body 111 is a hollow steel pipe, and the end caps 112 are made of the same material as the tank body 111. The two end caps 112 are fixedly connected to the ends of the tank body 111 by welding to seal the ends of the tank body 111. At this time, the inner wall of the tank body 111 and the opposing sides of the two end caps 112 together form the aforementioned accommodation space. The circumference of the tank body 111 is constructed with a plurality of pipe holes connected to the accommodation space. The shape and size of the pipe holes match the shape and size of the end of the valve tube 120.

[0028] In some embodiments, the tank body 111 is a seamless steel pipe with a nominal diameter of 600 mm and a thickness of 9 mm, and each pipe hole is formed by laser cutting.

[0029] In some embodiments, an air inlet is provided on a sealing head 112 , and when the valve testing device 100 is in operation, the air inlet is connected to an external gas source, and compressed gas enters the interior of the tank body 110 through the air inlet.

[0030] Specifically, the valve tube 120 includes a tube body 121 and a connecting structure 122 fixedly connected to one end of the tube body 121. The tube body 121 is a hollow circular tube, and its material is the same as that of the tank body 111. The end of the tube body 121 away from the connecting structure 122 is fixedly connected to the tube hole on the side of the tank body 111, and there is no connection gap between the tube body 121 and the tube hole.

[0031] In some embodiments, the end of the tube body 121 facing away from the connecting structure 122 is connected to the tank body 111 by welding, and the connecting structure 122 is a threaded connection and can be connected to a valve with a threaded interface. In another embodiment, when the connecting structure 122 is a connecting flange, it can be fixed to one end of the tube body 121 by welding, and the connecting flange can be connected to a valve installed and fixed through a flange.

[0032] It should be noted that the pipe body 121 and the tank body 111 are welded using a reinforced AB weld (SAW) process, with a weld width of 15 mm + 1 mm to improve the strength and safety of the straight weld. The connecting flange and the pipe body 121 are welded using a reinforced AB weld (SAMW) process, with a V-section angle of 60° ± 5° and a weld width of 1 mm + 1 mm to improve the strength and safety of the fillet weld.

[0033] In some embodiments, there are fourteen valve tubes 120. The length of the tube body 121 in each valve tube 120 is 100 mm. The nominal diameter of the tube body 121 in the fourteen valve tubes 120 can be anywhere between 15 mm and 20 mm. It should be noted that the nominal pressure of the valve tubes 120 is 1.6 MPa or 2.5 MPa. In one embodiment, the nominal diameters of the fourteen valve tubes 120 decrease in descending order.

[0034] In order to prevent the internal pressure of the tank body 110 from being too high, it is also necessary to monitor the internal pressure of the tank body 110 and relieve the pressure in time. To address this issue, a pressure gauge (not shown in the figure) can be installed on the connection structure 122 of one valve tube 120, and a safety valve (not shown in the figure) can be installed on the connection structure 122 of the other valve tube 120. The pressure gauge can monitor the internal pressure of the tank body 110 in real time. When the internal air pressure of the tank body 110 is greater than the preset value, the internal gas of the tank body 110 can be discharged by opening the safety valve to reduce the internal air pressure of the tank body 110. It can be understood that the preset value is a safe value for the tank body 110 to withstand the internal air pressure, which can be obtained through manufacturer calibration or testing.

[0035] In some embodiments, both the pressure gauge and the safety valve may be online devices to enable automatic control and remote control.

[0036] In some embodiments, to facilitate installation of the valve testing device 100 , a mounting base 130 is fixedly connected to the bottom of the tank 110 . The mounting base 130 includes a bottom plate 131 connected to the ground, and the bottom plate 131 is provided with a plurality of through holes for mounting bolts.

[0037] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.

Claims

1. An energy-saving and low-consumption valve testing device, characterized in that: include: A tank body, wherein an independent accommodating space is provided inside the tank body, and an air inlet communicating with the accommodating space is provided on the outside of the tank body; The tank body includes a tank body and two sealing heads. The tank body is a hollow tube. The two sealing heads are respectively arranged at both ends of the hollow tube in a sealed connection manner, so as to form the accommodating space by enclosing the inner wall of the tank body and the opposite sides of the two sealing heads. The outer circumference of the tank body is configured with a plurality of pipe holes communicating with the accommodating space, and the air inlet is arranged at one of the sealing heads. A plurality of valve tubes are provided, each of which is arranged on the outside of the tank body, and the interior of each valve tube is connected to the interior of the accommodating space; each valve tube includes a tube body and a connecting structure provided at one end of the tube body, and one end of each tube body away from the connecting structure is fixedly connected to each of the tube holes in a one-to-one correspondence, and the tube body is sealed to the tube hole, and the nominal diameter of each tube body decreases successively.

2. The energy-saving and low-consumption valve testing device according to claim 1 is characterized in that: The nominal diameter of the pipe body is any value between 15 mm and 20 mm, and the nominal pressure of the pipe body is 1.6 MPa or 2.5 MPa.

3. The energy-saving and low-consumption valve testing device according to claim 1, characterized in that: One end of the tube body away from the connection structure is connected to the tank body by welding.

4. The energy-saving and low-consumption valve testing device according to claim 1, characterized in that: The connection structure is a threaded structure.

5. The energy-saving and low-consumption valve testing device according to claim 1, characterized in that: The connecting structure is a connecting flange, and the connecting flange is fixedly connected to one end of the tube body away from the tank body.

6. The energy-saving and low-consumption valve testing device according to claim 5, characterized in that: The connecting flange is connected to the end of the tube body away from the tank body by welding.

7. An energy-saving and low-consumption valve testing device according to any one of claims 1 to 5, characterized in that: It also includes a pressure gauge and a safety valve. The pressure gauge is installed at the connecting structure of one of the valve pipes to display the internal pressure of the tank body. The safety valve is installed at the connecting structure of another valve pipe to discharge the gas of the tank body when the internal air pressure of the tank body exceeds a preset value. The connecting structures of the remaining valve pipes are all connected to the valve.

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