Coil pipe device with bottom drainage structure

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly discloses a coil pipe device with a bottom drainage structure, a coil pipe frame, a water header, a water passing pipe, a pressure gauge, an exhaust valve and a drainage structure, the water header is arranged on the coil pipe frame, and the water header comprises a first water header and a second water header; the water passing pipes comprise the first water passing pipe and the second water passing pipe, the first water passing pipe is arranged on the side edge of the first water header, the second water passing pipe is arranged on the side edge of the second water header, the pressure gauge is arranged above the first water passing pipe, the exhaust valve is arranged above the second water passing pipe, and the drainage structure is located below the first water header. The drainage structure comprises a drainage connector, a connecting pipeline and a drainage ball valve, the drainage connector is connected with the first water header, one end of the connecting pipeline is arranged above the drainage connector, the drainage ball valve is arranged at the other end of the connecting pipeline, the pressure gauge is used for detecting internal pressure, and the exhaust valve is used for introducing air in the liquid drainage process. And the flowing of the liquid is effectively ensured through the entering of air.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a coil device with a bottom drainage structure. Background Art

[0002] Heat exchangers are essential equipment in industrial production. Heat exchangers with metal coils as heat exchange components account for a considerable share. As a core component, the performance and maintenance of the coil heat exchange device play a vital role in the operation of the entire equipment.

[0003] Usually, the heat exchange pipes of the coil are thin-walled metal pipes. Ice and freezing in cold areas are the biggest threat to the coil. If you are not careful, the heat exchange coil will freeze and crack. Usually in cold areas in winter, either keep the equipment running continuously or drain the liquid in the heat exchange coil when it is shut down.

[0004] Traditional drainage devices are installed on the pipes connecting the upper and lower water inlets and outlets of the equipment. Since the pipes are filled with liquid and are very heavy, the deformation of the coils and pipes will increase, causing the internal pipes and the external pipes to be on the same horizontal plane, that is, the drainage device is not at the lowest position of the equipment. This will result in some liquid in the internal pipes not being able to be drained. In production, many projects will still experience freezing and cracking of the heat exchange coils even after the water is drained. Utility Model Content

[0005] The purpose of the utility model is to provide a coil device with a bottom drainage structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a coil device with a bottom drainage structure, a coil rack, a water header, a water pipe, a pressure gauge, an exhaust valve and a drainage structure, wherein the water header is arranged on the coil rack, and the water header includes a first water header and a second water header, wherein the first water header is located at a position close to the bottom of the coil rack, and the second water header is located at a position close to the top of the coil rack;

[0007] The water pipe includes a first water pipe and a second water pipe. The first water pipe is arranged on the side of the first water header box, the second water pipe is arranged on the side of the second water header box, the pressure gauge is arranged above the first water pipe, the exhaust valve is arranged above the second water pipe, and the drainage structure is located below the first water header box. The drainage structure includes a drainage interface, a connecting pipe and a drainage ball valve. The drainage interface is connected to the first water header box, one end of the connecting pipe is arranged above the drainage interface, and the drainage ball valve is arranged at the other end of the connecting pipe.

[0008] The drainage ball valve is a national standard ball valve, which is flexible to open and close and easy to maintain. The first water pipe and the second water pipe are the water inlet and outlet pipes respectively. The pressure gauge is used to detect the internal pressure. The exhaust valve is used to connect air during the drainage process. The entry of air effectively ensures the flow of the liquid.

[0009] Preferably, the exhaust valve is a rotary exhaust valve, which is flexible to operate.

[0010] Preferably, fixed feet are provided below the coil rack, and the fixed feet serve as a support.

[0011] Preferably, the connecting pipe is formed as a whole by welding, and has high dimensional accuracy.

[0012] Preferably, a lifting lug is provided above the coil rack for fixing the device.

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

[0014] The utility model discharges the liquid in the coil body by opening and closing the exhaust valve and the drain ball valve. The drain ball valve is located at the lowest position at the bottom of the coil body, which can effectively ensure that the liquid in the coil is completely discharged. It has the characteristics of simple operation, convenient installation, strong functionality, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] In the figure: 1. Coil rack; 2. First water header; 3. First water pipe; 4. Pressure gauge; 5. Second water header; 6. Second water pipe; 7. Exhaust valve; 8. Drain interface; 9. Connecting pipe; 10. Drain ball valve; 11. Fixed foot; 12. Lifting ear. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1 The utility model provides a technical solution: a coil device with a bottom drainage structure, a coil rack 1, a water header, a water pipe, a pressure gauge 4, an exhaust valve 7 and a drainage structure, wherein the water header is arranged on the coil rack 1, and the water header includes a first water header 2 and a second water header 5, wherein the first water header 2 is located near the bottom of the coil rack 1, and the second water header 5 is located near the top of the coil rack 1;

[0021] Furthermore, the water pipe includes a first water pipe 3 and a second water pipe 6, the first water pipe 3 is arranged on the side of the first water header 2, the second water pipe 6 is arranged on the side of the second water header 5, the pressure gauge 4 is arranged above the first water pipe 3, the exhaust valve 7 is arranged above the second water pipe 6, the drainage structure is located below the first water header 2, the drainage structure includes a drainage interface 8, a connecting pipe 9 and a drainage ball valve 10, the drainage interface 8 is connected to the first water header 2, one end of the connecting pipe 9 is arranged above the drainage interface 8, and the drainage ball valve 10 is arranged at the other end of the connecting pipe 9.

[0022] The drain ball valve 10 is a national standard ball valve, which is flexible to open and close and easy to maintain. The first water pipe 3 and the second water pipe 6 are respectively the water inlet and outlet pipes, the pressure gauge 4 is used to detect the internal pressure, and the exhaust valve 7 is used to connect air during the drainage process, and the entry of air effectively ensures the flow of the liquid.

[0023] Furthermore, the exhaust valve 7 is a rotary exhaust valve 7, which is flexible to operate.

[0024] Furthermore, a fixed foot 11 is provided below the coil rack 1, and the fixed foot 11 serves as a support.

[0025] Furthermore, the connecting pipe 9 is formed as a whole by welding, and has high dimensional accuracy.

[0026] Furthermore, a lifting lug 12 is provided above the coil rack 1 for fixing the device.

[0027] In summary, when the device is in use, the pressure inside the pipeline can be detected by the pressure gauge 4. When draining, the liquid in the coil body is discharged by controlling the opening and closing of the exhaust valve 7 and the drain ball valve 10. Before the emptying operation, the exhaust valve 7 is opened first, and then the drain valve is opened. The exhaust valve 7 is opened to connect the air, and the air entering effectively ensures the flow of the liquid. The drain valve is at the lowest point of the coil body. The entry of air can effectively ensure that the liquid in the drain pipe will be completely emptied, thereby improving the drainage effect.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coil device with a bottom drainage structure, characterized in that: The invention comprises a coil rack (1), a water header, a water pipe, a pressure gauge (4), an exhaust valve (7) and a drainage structure. The water header is arranged on the coil rack (1). The water header comprises a first water header (2) and a second water header (5). The first water header (2) is located near the bottom of the coil rack (1), and the second water header (5) is located near the top of the coil rack (1). The water pipe comprises a first water pipe (3) and a second water pipe (6). The first water pipe (3) is arranged on the side of the first water header (2), and the second water pipe (6) is arranged on the side of the first water header (2). (6) is arranged on the side of the second water header (5), the pressure gauge (4) is arranged above the first water pipe (3), the exhaust valve (7) is arranged above the second water pipe (6), the drainage structure is located below the first water header (2), the drainage structure includes a drainage interface (8), a connecting pipe (9) and a drainage ball valve (10), the drainage interface (8) is connected to the first water header (2), one end of the connecting pipe (9) is arranged above the drainage interface (8), and the drainage ball valve (10) is arranged at the other end of the connecting pipe (9).

2. The coil device with bottom drainage structure according to claim 1, characterized in that: The exhaust valve (7) is a rotary exhaust valve.

3. The coil device with bottom drainage structure according to claim 1, characterized in that: A fixed foot (11) is provided below the coil rack (1).

4. The coil device with bottom drainage structure according to claim 1, characterized in that: The connecting pipe (9) is formed as a whole by welding.

5. The coil device with bottom drainage structure according to claim 1, characterized in that: A lifting lug (12) is provided above the coil rack (1).

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