Auxiliary valve for assisting online detection of ventilation valve

Abstract

The utility model relates to the field of valve equipment, in particular to an auxiliary valve for assisting online detection of a ventilation valve, which comprises a first valve chamber and a second valve chamber, one end of the second valve chamber is connected onto the first valve chamber, and the other end of the second valve chamber is connected with a third valve cover. The interior of the first valve chamber is divided into an upper cavity and a lower cavity by a transverse plate, one end of a third valve chamber and one end of a fourth valve chamber which are fixedly connected to the side of the first valve chamber are communicated with the upper cavity and the lower cavity respectively, and the other end of the third valve chamber and the other end of the fourth valve chamber are both inserted into the third cavity of the second valve chamber. The third valve chamber is connected with a first valve cover, and the fourth valve chamber is connected with a second valve cover. According to the auxiliary valve for assisting online detection of the ventilation valve, when the ventilation valve is detected, communication between the ventilation valve and a storage tank can be effectively cut off, the ventilation valve does not need to be detached from the storage tank, after detection, if problems exist, the ventilation valve can be directly maintained online, and the risk that foreign matter falls into the storage tank is completely avoided during maintenance.

Description

Technical Field

[0001] The utility model relates to the field of valve equipment, and more specifically to an auxiliary valve for assisting online detection of a ventilation valve. Background Art

[0002] The ventilation valve is a safety device to protect the storage tank. During use, its performance needs to be regularly inspected. The detection methods are divided into online detection and offline detection. During online detection, it is necessary to cut off the connection between the storage tank and the valve. The detection devices of valve manufacturers and professional inspection agencies are large in size and have high transportation costs to the inspection site. In addition, it is difficult to connect and inspect the valve that needs to be inspected on the tank without removing the valve from the tank. During offline detection, the valve needs to be removed from the tank and lifted from the top of the tank to the ground for inspection by a crane, or sent to the manufacturer and professional agency for offline inspection. The inspection cycle is long and the cost is high. In the process of removing the valve from the tank, there is a risk of parts or debris falling into the tank. Inflammable, explosive and harmful gases will also pose a threat to personal safety. There is also a risk of the valve falling during the lifting process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an auxiliary valve for assisting the online detection of a ventilation valve.

[0004] The auxiliary valve for online detection of an auxiliary ventilation valve described in the utility model adopts the following technical solution:

[0005] An auxiliary valve for online detection of an auxiliary ventilation valve comprises: a first valve chamber, and a second valve chamber connected to the first valve chamber at one end, the other end of the second valve chamber being connected to valve cover three; the interior of the first valve chamber is divided into an upper chamber and a lower chamber by a horizontal plate, one end of a third valve chamber and a fourth valve chamber fixedly connected to the side of the first valve chamber are respectively connected to the upper chamber and the lower chamber, and the other ends of the third valve chamber and the fourth valve chamber are both inserted into the third chamber of the second valve chamber; valve cover one is connected to the third valve chamber, and valve cover two is connected to the fourth valve chamber.

[0006] Furthermore, the transverse plate is fixedly connected to the middle of the inner wall of the first valve chamber, and the third valve chamber and the fourth valve chamber are relatively arranged on both sides of the transverse plate.

[0007] Furthermore, a valve connecting flange is provided at one end of the first valve chamber, and a tank connecting flange is provided at the other end of the first valve chamber.

[0008] Furthermore, the valve cover 1 and the valve cover 2 are both located in the third chamber.

[0009] Furthermore, the valve cover 1 is provided with a first interface, and the internal thread of the first interface is sealed and connected to the screw plug 1.

[0010] Furthermore, the second valve cover is provided with a second interface, and the internal thread of the second interface is sealed and connected to the second screw plug.

[0011] Furthermore, a first handle is fixed on the first valve cover; a second handle is fixed on the second valve cover; and a third handle is fixed on the third valve cover.

[0012] Furthermore, the second valve chamber is provided with a sewage outlet, and the internal thread of the sewage outlet is sealed and connected to the screw plug three.

[0013] Furthermore, the valve cover three is connected to the flange three on the second valve chamber through fasteners.

[0014] Furthermore, a gasket three is provided between the valve cover three and the flange three.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides an auxiliary valve for assisting the online detection of a ventilation valve. When the ventilation valve is detected, the connection between the ventilation valve and the storage tank can be effectively cut off, and there is no need to remove the ventilation valve from the storage tank. After the detection, if there is a problem, the ventilation valve can be directly repaired online. During the repair, there is no risk of foreign matter falling into the storage tank. After the repair, valve cover one and valve cover two are removed, and valve cover three is reinstalled to resume production operation. The utility model has a simple structure, is easy to operate, and has a low manufacturing cost. It can effectively assist the ventilation valve in rapid online detection, saving time, effort, and money.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of an auxiliary valve online detection for an auxiliary ventilation valve online detection provided by an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of an auxiliary valve for online detection of an auxiliary ventilation valve provided by an embodiment of the utility model when the auxiliary valve is working normally Figure 1 ;

[0021] Figure 3 A schematic diagram of an auxiliary valve for online detection of an auxiliary ventilation valve provided by an embodiment of the utility model when the auxiliary valve is working normally Figure 2 .

[0022] Icons: valve connecting flange 1; flange 1 2; third chamber 3; first chamber 4; handle 3 5; second chamber 6; flange 2 7; tank connecting flange 10; fastener 11; flange 3 12; gasket 3 13; valve cover 3 14; gasket 1 15; valve cover 1 16; handle 1 17; gasket 2 20; valve cover 2 21; handle 2 22; cross plate 25. DETAILED DESCRIPTION

[0023] In order to 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, it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0025] See also Figure 1-3 , the utility model provides a technical solution:

[0026] The utility model provides an auxiliary valve for online detection of an auxiliary ventilation valve, comprising: a first valve chamber, and a second valve chamber connected to the first valve chamber at one end, a valve connecting flange 1 is provided at one end of the first valve chamber, a tank connecting flange 10 is provided at the other end of the first valve chamber, a third chamber 3 is provided in the second valve chamber, and the other end of the second valve chamber is connected to a valve cover 3 14; the interior of the first valve chamber is partitioned into an upper chamber and a lower chamber by a transverse plate 25, one end of the third valve chamber and a fourth valve chamber fixedly connected to the side of the first valve chamber are communicated with the upper chamber and the lower chamber respectively, a first chamber 4 is provided in the third valve chamber, a second chamber 6 is provided in the fourth valve chamber, and the other ends of the third valve chamber and the fourth valve chamber are both inserted into Inside the third chamber 3 of the second valve chamber; the third valve chamber is connected to a valve cover 16 for closing the first chamber 4, and the fourth valve chamber is connected to a valve cover 21 for closing the second chamber 6; the second valve chamber is provided with a sewage outlet, and the internal thread of the sewage outlet is sealed and connected to a screw plug 3; the valve cover 16 is provided with a first interface, and the internal thread of the first interface is sealed and connected to a screw plug 1; the valve cover 21 is provided with a second interface, and the internal thread of the second interface is sealed and connected to a screw plug 2; the transverse plate 25 is fixedly connected to the middle of the inner wall of the first valve chamber, the third valve chamber and the fourth valve chamber are relatively arranged on both sides of the transverse plate 25, and the first chamber 4 and the second chamber 6 are symmetrically distributed about the transverse plate 25.

[0027] The utility model is an auxiliary valve for online detection of an auxiliary ventilation valve. When it works normally, the valve cover 16 is separated from the third valve chamber, and the fourth valve chamber is separated from the valve cover 21. At this time, the first chamber 4 and the second chamber 6 are both connected to the third chamber 3. The first chamber 4 and the second chamber 6 are symmetrically distributed about the center, separated by a horizontal plate 25 in the middle, and the third chamber 3 is arranged on the side of the first chamber 4 and the second chamber 6 and contains the two chambers; then the valve connecting flange 1 at one end of the first valve chamber is connected to the ventilation valve, and the tank connecting flange 10 at the other end of the first valve chamber is connected to the tank; when the storage When the tank pressure is too high, the gas in the tank enters the lower chamber through the connecting end with the first valve chamber, and enters the second chamber 6 of the fourth valve chamber through the lower chamber, and enters the third chamber 3 of the second valve chamber through the second chamber 6, and then enters the first chamber 4 through the third chamber 3, and finally enters the ventilation valve through the upper chamber to be discharged; when the tank pressure is too low, the gas enters the upper chamber of the first valve chamber through the ventilation valve, flows to the third chamber 3 through the first chamber 4, and enters the second chamber 6 through the third chamber 3, and finally enters the tank through the lower chamber to replenish pressure.

[0028] The utility model discloses an auxiliary valve for online detection of an auxiliary ventilation valve. When the ventilation valve is detected online, the screw plug three is unscrewed to open the drain port to discharge the accumulated liquid. When the accumulated liquid is drained, the valve cover three 14 is removed, the valve cover one 16 is connected to the third valve chamber, and the fourth valve chamber is connected to the valve cover two 21. At this time, the first chamber 4 and the second chamber 6 are both closed, and the first chamber 4 and the second chamber 6 cannot be connected to the third chamber 3, so the connection between the ventilation valve and the storage tank is cut off. Then, the screw plug one in the first interface and the screw plug two in the second interface are removed, and the detection equipment is connected to the first interface and the second interface to detect the ventilation valve. After the detection, if there is a problem, the ventilation valve can be directly repaired online. During the repair, there is no risk of foreign matter falling into the storage tank. After the repair, the valve cover one 16 and the valve cover two 21 are removed to reconnect the first chamber 4 and the second chamber 6 with the third chamber 3, and the valve cover three 14 is reinstalled to resume production operation.

[0029] During inspection, only valve cover 21 can be installed, and then valve cover 3 14 can be installed. Valve cover 3 14 is also provided with an inspection port, and a sealing screw plug is provided in the inspection port. During inspection, inspection can be carried out through the two inspection ports on valve cover 1 16 and valve cover 2 21, or through the inspection port on valve cover 3 14. During inspection, the second interface internal thread on valve cover 21 is sealed and connected to screw plug 2 for sealing, thereby inspecting the ventilation valve, making the inspection method more diverse.

[0030] The valve cover 16 and the valve cover 21 are both located in the third chamber 3. The third valve chamber is provided with a flange 2. The valve cover 16 is installed on the flange 2 by bolts. A gasket 15 is provided between the valve cover 16 and the flange 2. The fourth valve chamber is provided with a flange 7. The valve cover 21 is connected to the flange 7 by bolts. A gasket 20 is provided between the valve cover 21 and the flange 7.

[0031] The valve cover 1 16 and the valve cover 2 21 are both located in the third chamber 3. After the valve cover 3 14 is opened, the valve cover 1 16 and the valve cover 2 21 are convenient to install or remove, and are easy to operate. A gasket 15 is provided between the valve cover 1 16 and the flange 1 2, and a gasket 20 is provided between the valve cover 2 21 and the flange 2 7, which can effectively improve the sealing performance of the valve cover 1 16 and the valve cover 2 21 in closing the first chamber 4 and the second chamber 6, and ensure the accuracy of subsequent detection of the ventilation valve.

[0032] The valve cover 1 16 is fixed with a handle 1 17, the valve cover 2 21 is fixed with a handle 2 22, and the valve cover 3 14 is fixed with a handle 3 5. The provision of the handle 1 17, the handle 2 22 and the handle 3 5 improves the convenience of maintenance personnel to control the valve cover 1 16, the valve cover 2 21 and the valve cover 3 14, and facilitates assembly or disassembly.

[0033] The valve cover 3 14 is connected to the flange 3 12 on the second valve chamber through the fastener 11, and a gasket 3 13 is provided between the valve cover 3 14 and the flange 3 12. The valve cover 3 14 and the flange 3 12 are connected through the fastener 11, and the fastener 11 can be a bolt, which is easy to install or disassemble, easy to operate, and easy to repair and maintain; the provision of the gasket 3 13 makes the auxiliary valve of the utility model have better sealing performance during normal operation, reducing the probability of leakage.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An auxiliary valve for assisting ventilation valve online detection, characterized in that: include: A first valve chamber, and a second valve chamber connected to the first valve chamber at one end, and the other end of the second valve chamber connected to a valve cover three; The interior of the first valve chamber is divided into an upper chamber and a lower chamber by a horizontal plate. One ends of the third valve chamber and the fourth valve chamber fixedly connected to the side of the first valve chamber are communicated with the upper chamber and the lower chamber respectively, and the other ends of the third valve chamber and the fourth valve chamber are inserted into the third chamber of the second valve chamber; the third valve chamber is connected to valve cover 1, and the fourth valve chamber is connected to valve cover 2.

2. The auxiliary valve for online detection of an auxiliary ventilation valve according to claim 1, characterized in that: The transverse plate is fixedly connected to the middle of the inner wall of the first valve chamber, and the third valve chamber and the fourth valve chamber are arranged on two sides of the transverse plate opposite to each other.

3. The auxiliary valve for online detection of auxiliary ventilation valve according to claim 1, characterized in that: A valve connecting flange is provided at one end of the first valve chamber, and a storage tank connecting flange is provided at the other end of the first valve chamber.

4. The auxiliary valve for online detection of an auxiliary ventilation valve according to claim 1, characterized in that: The valve cover 1 and the valve cover 2 are both located in the third chamber.

5. The auxiliary valve for online detection of auxiliary ventilation valve according to claim 4, characterized in that: The valve cover 1 is provided with a first interface, and the internal thread of the first interface is sealed and connected to the screw plug 1.

6. The auxiliary valve for online detection of an auxiliary ventilation valve according to claim 4, characterized in that: The second valve cover is provided with a second interface, and the second interface is internally threaded and sealed to connect the second screw plug.

7. The auxiliary valve for online detection of an auxiliary ventilation valve according to claim 4, characterized in that: A first handle is fixed on the valve cover one; a second handle is fixed on the valve cover two; and a third handle is fixed on the valve cover three.

8. The auxiliary valve for online detection of an auxiliary ventilation valve according to claim 1, characterized in that: The second valve chamber is provided with a sewage outlet, and the internal thread of the sewage outlet is sealed and connected to a screw plug three.

9. The auxiliary valve for online detection of auxiliary ventilation valve according to claim 1, characterized in that: The valve cover three is connected to the flange three on the second valve chamber through fasteners.

10. The auxiliary valve for online detection of an auxiliary ventilation valve according to claim 9, characterized in that: A gasket three is arranged between the valve cover three and the flange three.

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