Shell-and-tube heat exchanger for air conditioner

Abstract

The utility model relates to the technical field of heat exchangers, and provides a shell-and-tube heat exchanger for an air conditioner, which comprises a shell, a tube plate is fixedly connected to the inner wall of the shell, a plurality of heat exchange tubes are fixedly connected to the outer surface of the tube plate, and one end of each heat exchange tube is detachably connected with a filter screen. The heat exchanger comprises a plurality of heat exchange tubes, the outer surfaces of the heat exchange tubes are fixedly connected with fixing strips, threaded rods are movably embedded in the fixing strips, one ends of the threaded rods are rotationally connected with round blocks through bearings, and the outer surfaces of the round blocks are fixedly connected with limiting rods. Gas enters the first pipe box from the fluid inlet pipe, then enters the shell and flows out through the fluid outlet pipe, liquid enters the heat exchange pipes in the shell through the gas inlet pipe, and when the liquid enters the heat exchange pipes, the liquid is filtered through the filter screen and the filter screen firstly; and the filtered impurity-free water enters the heat exchange tube for heat exchange.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a shell and tube heat exchanger for air conditioners. Background Art

[0002] A heat exchanger is a device that transfers part of the energy of a hot fluid to a cold fluid. It is widely used in industrial production in many fields such as chemical, petroleum, food, electricity, and HVAC.

[0003] The existing published patent number is CN204730713U, which discloses a shell-and-tube heat exchanger, relating to the technical field of heat exchangers. The shell-and-tube heat exchanger includes an outer shell, an inner shell disposed within the outer shell, and a heat exchange tube group disposed within the inner shell. The outer shell is provided with a shell-side fluid inlet and a shell-side fluid outlet. The inner shell is provided with a first opening and a second opening. The first opening is staggered with the shell-side fluid inlet, and the second opening is staggered with the shell-side fluid outlet. A buffer space is formed between the shell-side fluid inlet and the first opening, and a separation space is formed between the shell-side fluid outlet and the second opening.

[0004] In the above scheme, the shell-side fluid flows from the shell-side fluid inlet through the anti-collision space, the first opening, the second opening, the separation space, and finally to the shell-side fluid outlet. This utility model solves the problem of large space occupation and short service life of the previous shell-and-tube heat exchanger. When gas or liquid enters the pipe inside the heat exchanger, in order to prevent the pipe from being blocked, a filter needs to be installed at one end of the pipe to prevent the pipe from being blocked by excessive impurities. Utility Model Content

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a shell and tube heat exchanger for air conditioning, comprising: an outer shell, the inner wall of the outer shell is fixedly connected to a tube sheet, the outer surface of the tube sheet is fixedly connected to a plurality of heat exchange tubes, and one end of the plurality of heat exchange tubes is detachably connected to a filter.

[0006] The technical effect of adopting the above further scheme is: the liquid enters the heat exchange tube inside the shell through the gas inlet pipe. When the liquid enters, it will first pass through the filter screen, which will filter it. The filtered impurity-free water enters the heat exchange tube for heat exchange.

[0007] As a preferred embodiment, the outer surfaces of the multiple heat exchange tubes are fixedly connected to fixing bars, the interiors of the multiple fixing bars are movably embedded with threaded rods, one end of the multiple threaded rods are rotatably connected to round blocks through bearings, and the outer surfaces of the multiple round blocks are fixedly connected to limiting rods.

[0008] The technical effect of adopting the above further solution is: by rotating the threaded rod, the round block fixes the filter screen under the limit of the limit rod. At this time, the filter screen can be disassembled and installed above the heat exchange tube by rotating the threaded rod.

[0009] As a preferred embodiment, the plurality of limit rods are movably embedded in the interior of the fixing bar, the top of the outer surface of the shell is fixedly connected to a gas inlet pipe, the outer surface of the shell is fixedly connected to a pipe box 1, the top of the outer surface of the pipe box 1 is fixedly connected to a fluid inlet pipe, the outer surface of the tube sheet is fixedly connected to a through pipe, and the bottom of the outer surface of the shell is fixedly connected to a fluid outlet pipe.

[0010] The technical effect of adopting the above further solution is that the gas enters the interior of the pipe box 1 from the fluid inlet pipe, then enters the interior of the outer shell, and then flows out through the fluid outlet pipe.

[0011] As a preferred embodiment, a gas outlet pipe is fixedly connected to the bottom of the outer surface of the pipe box 2, a through pipe is fixedly connected to the outer surface of the pipe box 2 near its center, and two bases are fixedly connected to the bottom of the outer surface of the shell.

[0012] The technical effect of adopting the above further solution is that the base supports the entire device, and when the fluid outlet pipe and the gas outlet pipe are blocked, the gas and liquid can come out from the inside of the through pipe.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. When the utility model is in use, the gas enters the interior of the pipe box from the fluid inlet pipe, then enters the interior of the shell, and then flows out through the fluid outlet pipe. The liquid enters the heat exchange tube inside the shell through the gas inlet pipe. When the liquid enters, it will first pass through the filter screen, which will filter it. The filtered impurity-free water enters the interior of the heat exchange tube for heat exchange.

[0015] 2. When the utility model is in use, the threaded rod is rotated, and the round block fixes the filter under the limit of the limit rod. At this time, the filter can be disassembled and installed above the heat exchange tube by rotating the threaded rod. The base supports the entire device. When the fluid outlet pipe and the gas outlet pipe are blocked, the gas and liquid can come out from the inside of the through pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a schematic diagram of the three-dimensional structure of a shell and tube heat exchanger for air conditioning;

[0017] Figure 2 The utility model provides a schematic diagram of the internal structure of a shell and tube heat exchanger for air conditioning;

[0018] Figure 3 This is an enlarged structural diagram of point A of a shell and tube heat exchanger for air conditioning proposed by the utility model;

[0019] Figure 4 The utility model provides a front planar structural schematic diagram of a shell and tube heat exchanger for air conditioning.

[0020] Legend: 101, outer shell; 102, pipe box 1; 103, fluid inlet pipe; 104, gas inlet pipe; 105, fluid outlet pipe; 106, tube sheet; 107, pipe box 2; 108, through pipe; 109, gas outlet pipe; 110, base; 111, heat exchange tube; 112, filter; 113, fixing bar; 114, threaded rod; 115, limit rod; 116, round block. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] See also Figures 1 to 4 The utility model provides a shell and tube heat exchanger for air conditioning, comprising: a shell 101, an inner wall of the shell 101 is fixedly connected to a tube sheet 106, an outer surface of the tube sheet 106 is fixedly connected to a plurality of heat exchange tubes 111, one end of the plurality of heat exchange tubes 111 is detachably connected to a filter screen 112, and liquid enters the heat exchange tube 111 inside the shell 101 through the gas inlet pipe 104. When the liquid enters, it will first pass through the filter screen 112, and the filter screen 112 will filter it. The filtered impurity-free water enters the interior of the heat exchange tube 111 for heat exchange.

[0024] like Figures 1 to 4 As shown, the outer surfaces of the multiple heat exchange tubes 111 are fixedly connected with fixing bars 113, and the interiors of the multiple fixing bars 113 are movably embedded with threaded rods 114. One ends of the multiple threaded rods 114 are rotatably connected with round blocks 116 through bearings, and the outer surfaces of the multiple round blocks 116 are fixedly connected with limiting rods 115. The threaded rods 114 are rotated, and the round blocks 116 fix the filter screen 112 under the limitation of the limiting rods 115. At this time, the filter screen 112 can be disassembled and installed above the heat exchange tube 111 by rotating the threaded rods 114.

[0025] like Figures 1 to 4 As shown, multiple limit rods 115 are movably embedded in the interior of the fixing bar 113, the top of the outer surface of the shell 101 is fixedly connected to the gas inlet pipe 104, the outer surface of the shell 101 is fixedly connected to the pipe box 102, the top of the outer surface of the pipe box 102 is fixedly connected to the fluid inlet pipe 103, the outer surface of the tube sheet 106 is fixedly connected to the through pipe 108, and the bottom of the outer surface of the shell 101 is fixedly connected to the fluid outlet pipe 105. The gas enters the interior of the pipe box 102 from the fluid inlet pipe 103, then enters the interior of the shell 101, and then flows out through the fluid outlet pipe 105.

[0026] like Figures 1 to 4 As shown, a gas outlet pipe 109 is fixedly connected to the bottom of the outer surface of the second pipe box 107, a through pipe 108 is fixedly connected to the outer surface of the second pipe box 107 near its center, and two bases 110 are fixedly connected to the bottom of the outer surface of the shell 101. The bases 110 support the entire device. When the fluid outlet pipe 105 and the gas outlet pipe 109 are blocked, the gas and liquid can come out from the inside of the through pipe 108.

[0027] Working principle: When in use, the gas enters the interior of the pipe box 102 from the fluid inlet pipe 103, then enters the interior of the shell 101, and then flows out through the fluid outlet pipe 105. The liquid enters the heat exchange tube 111 inside the shell 101 through the gas inlet pipe 104. When the liquid enters, it will first pass through the filter screen 112. The filter screen 112 filters it. The filtered impurity-free water enters the interior of the heat exchange tube 111 for heat exchange. Rotate the threaded rod 114, and the round block 116 fixes the filter screen 112 under the limit of the limit rod 115. At this time, the filter screen 112 can be disassembled and installed above the heat exchange tube 111 by rotating the threaded rod 114. The base 110 supports the entire device. When the fluid outlet pipe 105 and the gas outlet pipe 109 are blocked, the gas and liquid can come out from the inside of the through pipe 108.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A shell and tube heat exchanger for air conditioning, comprising: The shell (101) is characterized in that the inner wall of the shell (101) is fixedly connected to a tube sheet (106), the outer surface of the tube sheet (106) is fixedly connected to a plurality of heat exchange tubes (111), and one end of the plurality of heat exchange tubes (111) is detachably connected to a filter screen (112).

2. The shell and tube heat exchanger for air conditioning according to claim 1, characterized in that: The outer surfaces of the plurality of heat exchange tubes (111) are all fixedly connected with fixing bars (113), and the interiors of the plurality of fixing bars (113) are all movably embedded with threaded rods (114).

3. The shell and tube heat exchanger for air conditioning according to claim 2, characterized in that: One end of each of the plurality of threaded rods (114) is rotatably connected to a round block (116) via a bearing, and the outer surfaces of each of the plurality of round blocks (116) are fixedly connected to a limiting rod (115).

4. The shell and tube heat exchanger for air conditioning according to claim 3, characterized in that: The plurality of limiting rods (115) are movably embedded in the interior of the fixing bar (113), and a gas inlet pipe (104) is fixedly connected to the top of the outer surface of the housing (101).

5. The shell and tube heat exchanger for air conditioning according to claim 4, characterized in that: The outer surface of the shell (101) is fixedly connected to a pipe box one (102), and the top of the outer surface of the pipe box one (102) is fixedly connected to a fluid inlet pipe (103).

6. The shell and tube heat exchanger for air conditioning according to claim 5, characterized in that: A through pipe (108) is fixedly connected to the outer surface of the tube plate (106), and a fluid outlet pipe (105) is fixedly connected to the bottom of the outer surface of the shell (101).

7. The shell and tube heat exchanger for air conditioning according to claim 6, characterized in that: The outer surface of the tube sheet (106) is fixedly connected to a second tube box (107), the bottom of the outer surface of the second tube box (107) is fixedly connected to a gas outlet pipe (109), and the outer surface of the second tube box (107) near its center is fixedly connected to a through pipe (108).

8. The shell and tube heat exchanger for air conditioning according to claim 7, characterized in that: Two bases (110) are fixedly connected to the bottom of the outer surface of the housing (101).

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