Anti-freezing U-shaped water seal structure

Abstract

The utility model relates to U type water seal technical field, concretely is a kind of anti-freezing U type water seal structure, the utility model discloses to solve the problem that many defects exist in current U type water seal, therefore provides a new anti-freezing U type water seal structure, including U type water seal body, water supply pipeline, return water pipeline, U type overflow water seal and vertically arranged water replenishing pipeline, return water pipeline, water supply pipeline, water inlet, the upper pipe mouth of water replenishing pipeline is connected by four-way joint, return water valve is equipped on return water pipeline, water replenishing valve is equipped on water replenishing pipeline, the lower pipe mouth of water replenishing pipeline, overflow pipe mouth, U type overflow water seal is connected by three-way joint, the bottom of U type overflow water seal is equipped with overflow drain pipe mouth, overflow drain pipe mouth is equipped with overflow drain valve, and drain pipe mouth is also equipped with drain valve. The structure is simple, and manufacturing cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to U type water seal technical field, concretely is a kind of anti-freezing U type water seal structure. BACKGROUND

[0002] U type water seal commonly used in industrial production equipment is a device for cutting off industrial gas medium flow, and the flow of industrial gas medium is cut off by the pressure generated by a certain liquid level. The existing industrial U type water seal is provided with an upper water pipe opening, an overflow pipe opening and a discharge pipe opening. The upper water pipe opening is arranged higher than the overflow pipe opening, and the discharge pipe opening is located at the lowest part of the U type water seal. The upper water pipe opening is connected with the water supply pipe and is provided with a water inlet valve at the upper water pipe opening. The overflow pipe opening is provided with an overflow valve, and the discharge pipe opening is provided with a discharge valve. The U type water seal has many defects in the actual use of industrial production. First, the U type water seal generally uses industrial water as a cutting medium. When the water inlet valve is closed in winter at a temperature below zero, the industrial water in the water supply pipe does not flow. At this time, the industrial water in the water supply pipe is prone to freezing due to low temperature, causing the water supply pipe to crack and damage. Second, when the U type water seal needs to be filled with water, the overflow valve is opened. During the water filling process, the overflow pipe opening will continuously discharge industrial gas. If the discharged industrial gas is toxic and harmful gas, it is easy to pollute the working environment. In addition, when the U type water seal is cut off, i.e. from the state of cutting off industrial gas to the state of industrial gas flow, the discharge valve needs to be opened to discharge the industrial water in the U type water seal, so that the industrial gas can flow normally. However, when the industrial water is discharged to a low liquid level, the industrial water will be mixed with industrial gas. If the discharged industrial gas is toxic and harmful gas, it is easy to pollute the working environment. SUMMARY

[0003] The utility model discloses in order to solve the problem that the existing U type water seal has many defects mentioned above, and therefore provides a new anti-freezing U type water seal structure.

[0004] The utility model discloses the following technical scheme is adopted to realize:

[0005] An anti-freezing U type water seal structure, comprising a U type water seal body, a water supply pipe, a backwater pipe, a U type overflow water seal and a vertically arranged water replenishing pipe. The U type water seal body is provided with a water inlet pipe opening, an overflow pipe opening and a discharge pipe opening. A water inlet valve is arranged at the water inlet pipe opening. An overflow valve is arranged at the overflow pipe opening. A main discharge valve is arranged at the discharge pipe opening. The backwater pipe, the water supply pipe, the water inlet pipe opening and the water replenishing pipe are connected through a four-way joint. The backwater pipe is arranged lower than the water supply pipe. A backwater valve is arranged on the backwater pipe. A water replenishing valve is arranged on the water replenishing pipe. The lower pipe opening of the water replenishing pipe, the overflow pipe opening and the first port of the U type overflow water seal are connected through a three-way joint. An overflow discharge pipe opening is arranged at the bottom of the U type overflow water seal. An overflow discharge valve is arranged at the overflow discharge pipe opening. A drain valve is also arranged at the discharge pipe opening.

[0006] Working principle: when the industrial gas needs to be cut off, that is, the water seal is used, the main purge valve, overflow purge valve, water valve and overflow valve are closed, the water return valve is opened, the industrial water flows in the water return pipeline to prevent the water return pipeline from freezing, the water supply valve is opened, the U-shaped overflow water seal is supplied with water, and until the tail port of the U-shaped overflow water seal starts to overflow, the water supply valve is closed, the water valve and the overflow valve are opened, and the U-shaped water seal body is supplied with water; since the U-shaped overflow water seal is filled with industrial water, the industrial gas will not be discharged from the tail port of the U-shaped overflow water seal when the overflow valve is opened, and the water seal is supplied with water until the tail port of the U-shaped overflow water seal starts to overflow again; when the industrial gas needs to be connected, that is, the water seal is cut off, the water valve and the overflow valve are closed, the main purge valve is opened, the industrial water in the U-shaped water seal body is discharged, and the industrial gas in the U-shaped water seal body will not be discharged due to the presence of the drain valve; at the same time, the overflow purge valve is opened, the water in the U-shaped overflow water seal is discharged, and the industrial water in the U-shaped overflow water seal is prevented from freezing in a low-temperature environment; at this time, the water return valve is normally opened, the water in the water supply pipeline and the water return pipeline is communicated, and the industrial water in the water supply pipeline is prevented from freezing in a low-temperature environment.

[0007] Further, the tail port of the U-shaped overflow water seal is also connected with a inverted U-shaped pipe to prevent industrial water from overflowing and spraying, and to facilitate the recovery of the overflowed industrial water.

[0008] The anti-freezing U-shaped water seal structure has the advantages that the ingenious addition of the water return pipeline solves the problem of low-temperature freezing of the water supply pipeline; the addition of the U-shaped overflow water seal and the water supply pipeline solves the problem of industrial gas discharge when the U-shaped water seal body is supplied with water; the addition of the drain valve solves the problem of industrial gas discharge when the U-shaped water seal body is discharged, and the structure is simple and the manufacturing cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0009] The accompanying drawings incorporated into the description and forming a part thereof illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0011] Figure 1 The structure of the anti-freezing U-shaped water seal structure is shown in the structure diagram.

[0012] In the diagram: 1-Water inlet valve, 2-Return valve, 3-Water supply valve, 4-Overflow valve, 5-Main drain valve, 6-Overflow drain valve, 7-Drain valve, 8-U-shaped water seal body, 9-U-shaped overflow water seal, 10-Water supply pipe, 11-Return pipe, 12-Water supply pipe, 13-Inverted U-shaped pipe. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0014] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0016] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0017] like Figure 1 As shown, an antifreeze U-shaped water seal structure includes a U-shaped water seal body 8, a water supply pipe 10, a return water pipe 11, a U-shaped overflow water seal 9, and a vertically arranged replenishment water pipe 12. The U-shaped water seal body 8 is equipped with a water inlet, an overflow pipe, and a drain pipe. A water inlet valve 1 is installed at the water inlet, an overflow valve 4 is installed at the overflow pipe, and a main drain valve 5 is installed at the drain pipe. The upper ports of the return water pipe 11, the water supply pipe 10, the water inlet, and the replenishment water pipe 12 are connected through a four-way connector. The return water pipe 11 is arranged lower than the water supply pipe 10 and is equipped with a return water valve 2. The replenishment water pipe 12 is equipped with a replenishment water valve 3. The lower port, the overflow pipe, and the first port of the U-shaped overflow water seal 9 of the replenishment water pipe 12 are connected through a three-way connector. The bottom of the U-shaped overflow water seal 9 is equipped with an overflow drain port, an overflow drain valve 6 is provided at the overflow drain port, and a drain valve 7 is also provided at the drain port.

[0018] Working principle: when the industrial gas needs to be cut off, i.e. the water seal is used, the main purge valve 5, the overflow purge valve 6, the water supply valve 1 and the overflow valve 4 are closed, the water return valve 2 is reduced in opening degree, the industrial water flows in the water return pipeline 11, the water return pipeline 11 is prevented from freezing, the water supply valve 3 is opened, the U-shaped overflow water seal 9 is supplied with water, until the tail end port of the U-shaped overflow water seal 9 starts to overflow, the water supply valve 3 is closed, the water supply valve 1 and the overflow valve 4 are opened, and the U-shaped water seal body 8 is supplied with water. Since the U-shaped overflow water seal 9 is filled with industrial water, the industrial gas will not be discharged from the tail end port of the U-shaped overflow water seal 9 when the overflow valve 4 is opened, until the tail end port of the U-shaped overflow water seal 9 starts to overflow again, and the water seal is supplied with water; when the industrial gas needs to be connected, i.e. the water seal is cut off, the water supply valve 1 and the overflow valve 4 are closed, the main purge valve 5 is opened, and the industrial water in the U-shaped water seal body 8 is purged. Since the drain valve 7 exists, the industrial gas in the U-shaped water seal body 8 will not be discharged, and at the same time, the overflow purge valve 6 is opened, and the water in the U-shaped overflow water seal 9 is purged, so as to prevent the industrial water in the U-shaped overflow water seal 9 from freezing in a low temperature environment. At this time, the water return valve 2 is normally opened, the water in the water supply pipeline 10 and the water return pipeline 11 is communicated, and the industrial water in the water supply pipeline 10 is prevented from freezing in a low temperature environment.

[0019] In specific implementation, the tail end port of the U-shaped overflow water seal 9 is also communicated with a reversed U-shaped pipe 13, so as to avoid the industrial water from overflowing and spraying, and also facilitate the recovery of the overflowed industrial water.

[0020] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Although the foregoing embodiments are described in detail, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should be covered in the protection scope of the claims.

Claims

1. A freeze-proof U-shaped water seal structure, comprising a U-shaped water seal body (8) provided with an upper water pipe opening, an overflow pipe opening, and a drain pipe opening, wherein an upper water valve (1) is arranged at the upper water pipe opening, an overflow valve (4) is arranged at the overflow pipe opening, and a main drain valve (5) is arranged at the drain pipe opening, characterized in that, Also include water supply pipeline (10), backwater pipeline (11), U-shaped overflow water seal (9) and vertically arranged water replenishment pipeline (12), backwater pipeline (11), water supply pipeline (10), water inlet, water replenishment pipeline (12) upper tube mouth through four-way interface communication, backwater pipeline (11) is lower than water supply pipeline (10) arrangement, backwater pipeline (11) is equipped with backwater valve (2), water replenishment pipeline (12) is equipped with water replenishment valve (3), water replenishment pipeline (12) lower tube mouth, overflow pipe, U-shaped overflow water seal (9) first port through three-way interface communication, U-shaped overflow water seal (9) bottom is equipped with overflow discharge pipe mouth, overflow discharge pipe mouth is equipped with overflow discharge valve (6) valve, discharge pipe mouth is also provided with drain valve (7). ​ 2. The freeze-proof U-shaped water seal structure according to claim 1, wherein U-shaped overflow water seal (9) tail port also has inverted U-shaped tube (13).

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