Multi-layer heat exchanger with air escape valve

Abstract

The utility model discloses a multi-layer heat exchanger with an air escape valve, which comprises a plurality of heat exchanger bodies, the heat exchanger bodies are arranged in a spiral and laminated manner, each heat exchanger body is provided with a first water inlet and a first water outlet, and the first water inlets and the first water outlets are arranged in the same direction. The heat exchanger bodies are sequentially arranged from top to bottom, first water inlets of the heat exchanger bodies are connected with a water inlet header pipe, first water outlets of the heat exchanger bodies are connected with a water outlet header pipe, and the top of the water outlet header pipe is of a protruding structure with the bottom periphery and the high middle. The air escape valve used for air escape is installed at the top of the protruding structure, the protruding structure with the bottom periphery and the high middle can concentrate air to the topmost position, then the air is exhausted through the air escape valve, and therefore the heat exchanger can be effectively protected, and explosion caused by air concentration is avoided.

Description

Technical field:

[0001] The utility model relates to the field of a multilayer heat exchanger with an air release valve. Background technology:

[0002] A large heat exchanger consists of several pipes, a water inlet main pipe and a water outlet main pipe. Several pipes are connected to the water inlet main pipe and the water outlet main pipe respectively. The water inlets of several pipes are stacked up and down in sequence and spiraled at the same time. Finally, the water outlets are connected to the water outlet main pipe in parallel.

[0003] When water enters the water inlet main pipe, it will be input into the heat exchanger body through the upper and lower parallel water inlets, and finally to the water outlet to the water outlet main pipe. In the water outlet main pipe, water spreads from a low position upward and is discharged to the main water outlet. Because the main water outlet is not at the top position, water with air is concentrated at the top position of the water outlet main pipe and cannot be discharged. Moreover, the top of the existing water outlet main pipe is generally welded with a flat cover. Once the air reaches the limit, the top flat cover will burst. Once it bursts, the entire heat exchanger will be scrapped. Utility model content:

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a multilayer heat exchanger with an air release valve, which can reduce the possibility of the top of the water outlet main pipe bursting and release air.

[0005] The purpose of the utility model is achieved through the following technical solutions.

[0006] The utility model aims to provide a multilayer heat exchanger with an air release valve, comprising a plurality of heat exchanger bodies, wherein the heat exchanger bodies are arranged in a spiral stack, and the heat exchanger bodies are provided with a first water inlet and a first water outlet, wherein the first water inlet and the first water outlet are arranged in the same direction, and the plurality of heat exchanger bodies are arranged in sequence up and down, wherein the first water inlets of the plurality of heat exchanger bodies are connected to a water inlet main pipe, and the first water outlets of the plurality of heat exchanger bodies are connected to a water outlet main pipe, wherein the top of the water outlet main pipe is a raised structure with an outer bottom and a middle height, and an air release valve for air release is installed at the top of the raised structure.

[0007] The above-mentioned protrusion structure is a hemispherical protrusion structure or a conical protrusion structure.

[0008] The above-mentioned raised structure is welded to the water outlet main pipe

[0009] Compared with the prior art, the utility model has the following effects:

[0010] 1) The utility model describes a multilayer heat exchanger with an air release valve, comprising a plurality of heat exchanger bodies, wherein the heat exchanger bodies are arranged in a spiral stack, and the heat exchanger bodies are provided with a first water inlet and a first water outlet, wherein the first water inlet and the first water outlet are arranged in the same direction, and the plurality of heat exchanger bodies are arranged in sequence up and down, wherein the first water inlets of the plurality of heat exchanger bodies are connected to a water inlet main pipe, and the first water outlets of the plurality of heat exchanger bodies are connected to a water outlet main pipe, and the top of the water outlet main pipe is a raised structure with a height in the middle of the outer bottom, and an air release valve for air release is installed at the top of the raised structure, and the raised structure with a height in the middle of the outer bottom can concentrate the air at the top position, and then discharge it through the air release valve, thereby effectively protecting the heat exchanger and preventing explosion caused by air concentration.

[0011] 2) Other advantages of the present invention are described in detail in the embodiment section of the specification. Description of the drawings:

[0012] Figure 1 It is a three-dimensional diagram of a multilayer heat exchanger with a vent valve provided in an embodiment of the utility model;

[0013] Figure 2 It is a three-dimensional diagram of a heat exchanger body provided by an embodiment of the utility model;

[0014] Figure 3 It is a three-dimensional enlarged view of a multilayer heat exchanger with an air release valve provided in an embodiment of the utility model. Specific implementation method:

[0015] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0016] The following specific implementation contents provide a variety of different embodiments or examples for implementing the present invention. Of course, these are only embodiments or examples and do not wish to be restrictive. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0017] like Figures 1 to 3As shown, this embodiment provides a multilayer heat exchanger with an air release valve, comprising a plurality of heat exchanger bodies 1, wherein the heat exchanger bodies 1 are arranged in a spiral stack, and the heat exchanger bodies 1 are provided with a first water inlet 101 and a first water outlet 102, wherein the first water inlet 101 and the first water outlet 102 are arranged in the same direction, and the plurality of heat exchanger bodies 1 are arranged up and down in sequence, wherein the first water inlets 101 of the plurality of heat exchanger bodies 1 are connected to a water inlet main pipe 2, and the first water outlets 102 of the plurality of heat exchanger bodies 1 are connected to a water outlet main pipe 3, wherein the top of the water outlet main pipe 3 is a raised structure 31 with a height in the middle of the outer bottom, and an air release valve 4 for air release is installed at the top of the raised structure 31, and the raised structure 31 with a height in the middle of the outer bottom can concentrate the air at the top position, and then discharge it through the air release valve 4, thereby effectively protecting the heat exchanger and preventing explosion caused by air concentration.

[0018] Preferably, the raised structure 31 is a hemispherical raised structure or a conical raised structure, so that the air can be concentrated at the top position and easily discharged through the air relief valve 4. The hemispherical raised structure or the conical raised structure is easier to weld to the water outlet main pipe 3, and such a structure is easier to be wrapped by insulation material.

[0019] Preferably, the protruding structure 31 is welded to the water outlet main pipe 3, and is not likely to explode when the air reaches the highest value.

[0020] In the prior art, the water inlet main pipe 2 and the water outlet main pipe 3 of the multilayer heat exchanger are used for total water input and water output during use, and then multiple heat exchanger bodies 1 are connected respectively, and air will easily be concentrated in the water outlet main pipe 3 and cannot be discharged. Moreover, the top position is generally welded with a flat cover, which will cause it to burst at the top when it reaches the highest value. Therefore, a protrusion structure 31 is installed at the top position, and the protrusion structure 31 can concentrate the air at the top position. The protrusion structure 31 is a hemispherical protrusion structure or a conical protrusion structure, which can improve the connection strength. The circular pressure bearing capacity (air pressure, water pressure, etc.) is strong, and the flat pressure bearing capacity is not good, and it is not easy to burst at the welding position, and it is easy to be wrapped by the insulation material. The most important thing is to install a deflation valve 4 at the top position, which can be deflated regularly. The deflation valve 4 can be deflated manually, which can avoid the explosion caused by air concentration and increase the safety, reliability and durability of the product.

[0021] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A multilayer heat exchanger with a vent valve, comprising a plurality of heat exchanger bodies (1), wherein the heat exchanger bodies (1) are arranged in a spiral stack, wherein the heat exchanger bodies (1) are provided with a first water inlet (101) and a first water outlet (102), wherein the first water inlet (101) and the first water outlet (102) are arranged in the same direction, wherein the plurality of heat exchanger bodies (1) are arranged in sequence up and down, wherein the first water inlets (101) of the plurality of heat exchanger bodies (1) are connected to a water inlet main pipe (2), and the first water outlets (102) of the plurality of heat exchanger bodies (1) are connected to a water outlet main pipe (3), wherein: The top of the water outlet main pipe (3) is a raised structure (31) with a lower periphery and a higher middle portion, and a deflation valve (4) for deflation is installed at the top of the raised structure (31).

2. A multilayer heat exchanger with a vent valve according to claim 1, characterized in that: The protrusion structure (31) is a hemispherical protrusion structure or a conical protrusion structure.

3. A multilayer heat exchanger with a vent valve according to claim 1, characterized in that: The protruding structure (31) is connected to the water outlet main pipe (3) by welding.

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