CN215414263U - Simple valve pressure testing device - Google Patents
Simple valve pressure testing device Download PDFInfo
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- CN215414263U CN215414263U CN202121170468.7U CN202121170468U CN215414263U CN 215414263 U CN215414263 U CN 215414263U CN 202121170468 U CN202121170468 U CN 202121170468U CN 215414263 U CN215414263 U CN 215414263U
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Abstract
The utility model provides a simple valve pressure testing device, wherein a first baffle and a second baffle are arranged in parallel at intervals, a first screw and a second screw are arranged between the first baffle and the second baffle in parallel at intervals, and one ends of the first screw and the second screw protrude out of the second baffle; the first hand wheel and the second hand wheel are respectively movably connected with the parts of the first screw rod and the second screw rod, which protrude outwards, of the second baffle plate, and the first hand wheel and the second hand wheel are rotated to change the distance between the first baffle plate and the second baffle plate; the valve to be tested is arranged between the first baffle and the second baffle, and a sealing gasket is arranged on one side of the first baffle, which faces the valve to be tested; the pressure supply device is used for conveying oil or water or compressed air into the valve. The utility model aims to solve the main technical problem of designing a valve pressure testing device, which can simply and intuitively see whether a valve leaks air or not and does not depend on the experience of an operator.
Description
Technical Field
The utility model relates to a pressure testing device, in particular to a valve pressure testing device.
Background
The heating, ventilating and air conditioning system in the building control system is a general term for heating, ventilating and air conditioning systems in a building or a building, and is an important component of the whole building in terms of function. With the development of urbanization, large commercial buildings or office buildings all adopt advanced heating, ventilating and air conditioning systems. One field device used to control the flow of a cooling or heating medium in a hvac system is a valve. The field-mounted valves may be connected to a controller. The controller can open/close the control valve or control the opening of the valve according to the data collected by the field sensor so as to control the flow.
The valves used in the heating and ventilating system are various in kind, and may be classified into, for example, a shut-off valve (e.g., ball valve, butterfly valve), a regulating valve (e.g., pressure reducing valve), a check valve, a flow dividing valve, etc., according to the application and use. The regulating valve can be further divided into an electric differential pressure regulating valve, a pressure independent regulating valve and the like. In order to enable continuous, smooth, long-term operation of these field-mounted valves, it is generally required that the valves employed should have high reliability and good safety performance. For this reason, each valve requires a series of tests before it is shipped. In these tests, the pressure test phase is the last test cycle of the valve test. The pressure test includes, for example: inner and outer leak tests. The internal leakage test value is used for representing and measuring the flow characteristic of the valve, and the external leakage test value is used for representing and measuring the strength characteristic of the valve. Taking a two-way valve and a three-way valve as an example, the internal leakage test typically comprises a straight-through test, i.e. measuring whether a fluid leakage occurs in a straight-through situation, for example, for a two-way or a three-way valve. For three-way valves, the internal leakage test also includes a bypass test, wherein the path switching of the straight-through and bypass of the three-way valve is achieved by a change in the position of the valve stem assembly. The leakage test is generally called a high pressure test, in which high pressure water is injected while the valve stem of the valve is placed in a neutral position to test whether the valve leaks water.
Conventional pressure testing equipment is generally manually used to monitor, control and switch various testing links in the testing process. This requires, on the one hand, that the operator is an experienced professional and, on the other hand, that there is also a risk of possible non-professional operations.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem of designing a valve pressure testing device, which can simply and intuitively see whether a valve leaks air or not and does not depend on the experience of an operator.
In order to solve the above technical problem, the present invention provides a simple valve pressure testing device, comprising: the device comprises a valve to be tested, a first baffle, a second baffle, a first screw rod, a second screw rod, a first hand wheel, a second hand wheel and a pressure supply device;
the first baffle plate and the second baffle plate are arranged in parallel at intervals, the first screw rod and the second screw rod are arranged between the first baffle plate and the second baffle plate in parallel at intervals, and one ends of the first screw rod and the second screw rod protrude out of the second baffle plate; the first hand wheel and the second hand wheel are respectively movably connected with the parts of the first screw rod and the second screw rod which protrude outwards from the second baffle plate, and the first hand wheel and the second hand wheel are rotated to change the distance between the first baffle plate and the second baffle plate;
the valve to be tested is arranged between the first baffle and the second baffle, and a sealing gasket is arranged on one side, facing the valve to be tested, of the first baffle; the pressure supply device is used for conveying oil or water or compressed air into the valve.
In a preferred embodiment: the first baffle is provided with a through channel along the thickness direction, and the pressure supply device conveys oil or water or compressed air into the valve through the through channel.
In a preferred embodiment: and a ball valve is arranged at the communication part of the pressure supply device and the through passage and is used for opening or closing the communication of the pressure supply device and the through passage.
In a preferred embodiment: the first baffle is further provided with a pressure gauge for detecting the pressure in the through channel.
In a preferred embodiment: the first baffle extends outwards along the thickness direction to form a boss, the through channel penetrates through the boss, and the pressure gauge is installed on the boss.
In a preferred embodiment: the valve to be tested is a low-pressure valve.
In a preferred embodiment: the low-pressure valve is a valve with the pressure not more than 2.5 MPa.
In a preferred embodiment: and the second baffle is also provided with an observation window along the thickness direction and used for observing the leakage point of the valve to be tested.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
according to the simple valve pressure testing device, the second baffle is driven to move through the hand wheel, so that the first baffle and the second baffle clamp a valve to be tested from two ends; thereby realizing that the interior of the valve to be tested forms a sealed chamber. Carry oil or water or compressed air in to the valve through pressure feed arrangement, and then observe pressure numerical value through the manometer, if pressure numerical value keeps unchangeable, then explain the valve and do not leak gas, if pressure numerical value changes then explain the valve gas leakage, can find the concrete position of valve gas leakage through the observation window this moment. The whole process is simple and visual, and an operator can judge whether the valve leaks air or not by observing the numerical value of the pressure gauge without depending on experience, so that the requirement on the operator is greatly reduced.
Drawings
Fig. 1 is a cross-sectional view of a preferred embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like, are used in a broad sense, and for example, "connected" may be a wall-mounted connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically.
Referring to fig. 1, the present embodiment provides a simple valve pressure testing device, including: the device comprises a valve to be tested 1, a first baffle 2, a second baffle 3, a first screw rod 4, a second screw rod 5, a first hand wheel 6, a second hand wheel 7 and a pressure supply device 8;
the first baffle plate 2 and the second baffle plate 3 are arranged in parallel at intervals, the first screw rods 4 and the second screw rods 5 are arranged between the first baffle plate 2 and the second baffle plate 3 in parallel at intervals, and one ends of the first screw rods 4 and the second screw rods 5 protrude out of the second baffle plate 3; the first hand wheel 6 and the second hand wheel 7 are respectively movably connected with the parts of the first screw rod 4 and the second screw rod 5 protruding out of the second baffle 3, and the first hand wheel 6 and the second hand wheel 7 are rotated to change the distance between the first baffle 2 and the second baffle 3;
the valve to be tested 1 is arranged between the first baffle plate 2 and the second baffle plate 3, and a sealing gasket 12 is arranged on one side, facing the valve to be tested 1, of the first baffle plate 2; the pressure supply device 8 is used to feed oil or water or compressed air into the valve.
In order to allow oil, water or compressed air to enter the valve 1 to be tested, the first baffle 2 is provided with a through channel along the thickness direction, and the pressure supply device 8 conveys the oil, water or compressed air into the valve through the through channel.
In order to be able to disconnect the valve from the pressure supply device 8 after the pressure supply device 8 has delivered a sufficient amount of oil or water or compressed air, a ball valve 9 is provided at the connection of the pressure supply device 8 to the through-channel for opening or closing the connection of the pressure supply device 8 to the through-channel.
In order to facilitate an operator to observe whether the pressure in the valve changes, the first baffle 2 is further provided with a pressure gauge 10 for detecting the pressure in the through channel.
In order to install the pressure gauge 10, the first baffle 2 extends outwards along the thickness direction to form a boss, the through channel penetrates through the boss, and the pressure gauge 10 is installed on the boss.
In this embodiment, the second baffle 3 is further provided with an observation window 11 along the thickness direction for observing the leakage point of the valve 1 to be measured.
According to the simple valve pressure testing device, the second baffle 3 is driven to move through the hand wheel, so that the first baffle 2 and the second baffle 3 clamp the valve 1 to be tested from two ends; thereby realizing that the interior of the valve 1 to be tested forms a sealed chamber. Oil or water or compressed air are conveyed into the valve through the pressure supply device 8, then the pressure value is observed through the pressure gauge 10, if the pressure value is kept unchanged, the valve is not leaked, if the pressure value is changed, the valve is leaked, and at the moment, the specific position of the valve leakage can be found through the observation window 11. The whole process is simple and visual, an operator can judge whether the valve leaks air by observing the value of the pressure gauge 10 without depending on experience, and the requirement on the operator is greatly reduced.
In this embodiment, the valve 1 to be tested is a low pressure valve. Specifically, the low-pressure valve is a valve with the pressure not greater than 2.5 MPa.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.
Claims (8)
1. The utility model provides a simple and easy valve pressure testing device which characterized in that includes: the device comprises a valve to be tested, a first baffle, a second baffle, a first screw rod, a second screw rod, a first hand wheel, a second hand wheel and a pressure supply device;
the first baffle plate and the second baffle plate are arranged in parallel at intervals, the first screw rod and the second screw rod are arranged between the first baffle plate and the second baffle plate in parallel at intervals, and one ends of the first screw rod and the second screw rod protrude out of the second baffle plate; the first hand wheel and the second hand wheel are respectively movably connected with the parts of the first screw rod and the second screw rod which protrude outwards from the second baffle plate, and the first hand wheel and the second hand wheel are rotated to change the distance between the first baffle plate and the second baffle plate;
the valve to be tested is arranged between the first baffle and the second baffle, and a sealing gasket is arranged on one side, facing the valve to be tested, of the first baffle; the pressure supply device is used for conveying oil or water or compressed air into the valve.
2. The simple valve pressure testing device according to claim 1, characterized in that: the first baffle is provided with a through channel along the thickness direction, and the pressure supply device conveys oil or water or compressed air into the valve through the through channel.
3. The simple valve pressure testing device according to claim 2, characterized in that: and a ball valve is arranged at the communication part of the pressure supply device and the through passage and is used for opening or closing the communication of the pressure supply device and the through passage.
4. The simple valve pressure testing device according to claim 3, characterized in that: the first baffle is further provided with a pressure gauge for detecting the pressure in the through channel.
5. The simple valve pressure testing device according to claim 4, characterized in that: the first baffle extends outwards along the thickness direction to form a boss, the through channel penetrates through the boss, and the pressure gauge is installed on the boss.
6. The simple valve pressure testing device according to claim 1, characterized in that: the valve to be tested is a low-pressure valve.
7. The simple valve pressure testing device according to claim 6, characterized in that: the low-pressure valve is a valve with the pressure not more than 2.5 MPa.
8. The simple valve pressure testing device according to claim 1, characterized in that: and the second baffle is also provided with an observation window along the thickness direction and used for observing the leakage point of the valve to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121170468.7U CN215414263U (en) | 2021-05-27 | 2021-05-27 | Simple valve pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121170468.7U CN215414263U (en) | 2021-05-27 | 2021-05-27 | Simple valve pressure testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215414263U true CN215414263U (en) | 2022-01-04 |
Family
ID=79677566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121170468.7U Active CN215414263U (en) | 2021-05-27 | 2021-05-27 | Simple valve pressure testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215414263U (en) |
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2021
- 2021-05-27 CN CN202121170468.7U patent/CN215414263U/en active Active
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