Layered partition cylinder for heat exchanger tube box

Abstract

The utility model discloses a layered partition cylinder for a heat exchanger tube box, which comprises a tube bundle plate detachably arranged at one end of a heat exchanger and a tube box detachably arranged at one end of the tube bundle plate away from the heat exchanger and provided with an inner cavity, an air inlet tube is inserted into the tube box, an exhaust tube is arranged on the peripheral side of the tube box, and the inner cavity of the tube box is communicated with the tube bundle plate. An air inlet cylinder is arranged in the inner cavity, one end of the air inlet cylinder is connected with the air inlet pipe, the other end of the air inlet cylinder is connected with the tube bundle plate, the air inlet cylinder is communicated with the air inlet pipe, a flow guide cover is arranged on the peripheral side of the air inlet cylinder, and the flow guide cover, the air inlet cylinder and the inner cavity form an air backflow cavity. And the gas backflow cavity is communicated with the exhaust pipe. The layered partition cylinder has no flow direction dead angle, the gas flow direction is stable, and the heat exchange effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a layered spacer for a heat exchanger tube box. Background Art

[0002] Heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It transfers heat from a higher temperature fluid to a lower temperature fluid, so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also one of the main equipment for improving energy utilization. The heat exchanger industry involves nearly 30 industries such as HVAC, pressure vessels, reclaimed water treatment equipment, chemicals, and petroleum.

[0003] For example, Chinese invention patent application CN2020115782613 discloses a waste heat boiler, in which the air intake pipe passes through the internal parts of the pipe box and then passes through the air distributor to enter the inner pipe. After heat exchange, the gas flows back to the air distributor and then enters the inner cavity of the pipe box to be discharged from the exhaust pipe. The exhaust direction is downward, and the air intake enters from the top. The reflux route is complicated, and there are prone to dead corners. In addition, the structure of the air distributor and the internal parts of the pipe box is complicated, and the exhaust effect is poor, which affects the heat exchange efficiency. Therefore, a new technical solution is urgently needed to solve at least one of the above technical problems. Summary of the invention

[0004] The utility model aims to provide a layered partition tube for a heat exchanger tube box, which has no flow dead angle, stable gas flow direction and good heat exchange effect.

[0005] In order to achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted by the utility model is: a layered spacer for a heat exchanger tube box, characterized in that it includes a tube bundle plate detachably arranged at one end of the heat exchanger, and a tube box with an inner cavity detachably arranged at the end of the tube bundle plate away from the heat exchanger, an air intake pipe is inserted into the tube box, an exhaust pipe is arranged on the outer peripheral side of the tube box, an air intake cylinder is arranged in the inner cavity, one end of the air intake cylinder is connected to the air intake pipe, and the other end of the air intake cylinder is connected to the tube bundle plate, the air intake cylinder is communicated with the air intake pipe, a guide cover is arranged on the outer peripheral side of the air intake cylinder, the guide cover, the air intake cylinder and the inner cavity constitute a gas reflux chamber, and the gas reflux chamber is communicated with the exhaust pipe.

[0006] As a preferred technical solution, the air intake cylinder includes a cylindrical portion and a conical portion arranged at one end of the cylindrical portion away from the tube bundle plate, the cylindrical portion is connected to the tube bundle plate, and the conical portion is connected to the air intake pipe.

[0007] As a preferred technical solution, an air intake flange is provided at one end of the air intake pipe away from the heat exchanger.

[0008] As a preferred technical solution, an exhaust flange is provided at one end of the exhaust pipe away from the heat exchanger.

[0009] As a preferred technical solution, the tube bundle plate is provided with a plurality of heat exchange tubes having air inlets and air outlets, the air inlets are located in the air inlet tube, the air outlets are located in the gas reflux chamber, and the heat exchange tubes are U-shaped.

[0010] As a preferred technical solution, the heat exchange tube is detachably provided with a plurality of support plates, and the support plates are slidably connected to the inner wall of the heat exchanger.

[0011] As a preferred technical solution, the air guide cover is trumpet-shaped.

[0012] The beneficial effects of the utility model are:

[0013] 1) The gas is introduced into the air inlet pipe, and then enters the heat exchange tube through the air inlet cylinder. The gas after heat exchange enters the gas reflux chamber, and then is exhausted from the exhaust pipe. The gas reflux chamber is a quasi-annular structure, so that the gas flow has no dead angle, the gas flow is stable, and the heat exchange effect is good;

[0014] 2) Preferably, the conical part and the cylindrical part are of variable diameter structure, so that the gas has a flow change after entering, so that the gas can enter the heat exchange tube better and improve the heat exchange effect;

[0015] 3) Preferably, the air inlet flange and the exhaust flange are convenient for connecting the pipelines and are easy to install and disassemble;

[0016] 4) Preferably, the support plate has good support for the heat exchange tube, thereby improving the stability of the heat exchange process;

[0017] 5) Preferably, a trumpet-shaped air guide cover has a good air guide effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a layered spacer provided by an embodiment of the utility model;

[0019] Figure 2 This is a structural diagram of a pipe box provided by an embodiment of the utility model;

[0020] Figure 3 It is an internal structure diagram of a heat exchanger provided in one embodiment of the utility model.

[0021] exist Figure 1-Figure 31. heat exchanger; 2. tube bundle plate; 3. tube box; 301. inner cavity; 3011. gas reflux cavity; 4. air inlet pipe; 5. exhaust pipe; 6. air inlet cylinder; 601. cylindrical part; 6011. second balancing hole; 602. conical part; 7. air guide cover; 701. first balancing hole; 8. support plate; 9. slide rail; 10. air inlet flange; 11. exhaust flange; 12. heat exchange tube. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "head", "tail", "top", "bottom", "left", "right", "front", "back", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] See also Figure 1-Figure 3 The utility model provides a layered spacer for a heat exchanger tube box, comprising a tube bundle plate 2 detachably arranged at one end of the heat exchanger 1, and a tube box 3 with an inner cavity 301 detachably arranged at the end of the tube bundle plate 2 away from the heat exchanger 1, an air intake pipe 4 is inserted into the tube box 3, an exhaust pipe 5 is arranged on the outer peripheral side of the tube box 3, an air intake cylinder 6 is arranged in the inner cavity 301, one end of the air intake cylinder 6 is connected to the air intake pipe 4, and the other end of the air intake cylinder 6 is connected to the tube bundle plate 2, the air intake cylinder 6 is communicated with the air intake pipe 4, a guide cover 7 is arranged on the outer peripheral side of the air intake cylinder 6, the guide cover 7, the air intake cylinder 6 and the inner cavity 301 constitute a gas reflux chamber 3011, and the gas reflux chamber 3011 is communicated with the exhaust pipe 5, the exhaust pipe 5 is arranged horizontally, and the exhaust pipe 5 is arranged vertically and located at the top of the heat exchanger 1.

[0025] The gas is introduced into the air intake pipe 4, and the gas enters the heat exchange tube 12 through the air intake cylinder 6. The gas after heat exchange enters the gas reflux chamber 3011, and then is exhausted from the exhaust pipe 5. The gas reflux chamber 3011 is a ring-like structure, so that the gas flow has no dead angle, the gas flow stability is good, and the heat exchange effect is good.

[0026] like Figure 1-Figure 3As shown, in some embodiments, the air inlet cylinder 6 includes a cylindrical portion 601 and a conical portion 602 arranged at one end of the cylindrical portion 601 away from the tube bundle plate 2, the cylindrical portion 601 is connected to the tube bundle plate 2, and the conical portion 602 is connected to the air inlet pipe 4, and the conical portion 602 and the cylindrical portion 601 are variable diameter structures, so that there is a flow change after the gas enters, so that the gas can better enter the heat exchange tube 12 and improve the heat exchange effect.

[0027] like Figure 1-Figure 3 As shown, in some of the embodiments, an air intake flange 10 is provided at one end of the air intake pipe 4 away from the heat exchanger 1. The air intake flange 10 is convenient for connecting pipelines and is easy to install and disassemble.

[0028] like Figure 1-Figure 3 As shown, in some of the embodiments, an exhaust flange 11 is provided at one end of the exhaust pipe 5 away from the heat exchanger 1. The exhaust flange 11 is convenient for connecting pipelines and is easy to install and disassemble.

[0029] like Figure 1-Figure 3 As shown, in some of the embodiments, the heat exchanger 1 is flange-connected to the pipe box 3, the connection is firm, and installation and disassembly are more convenient.

[0030] like Figure 1-Figure 3 As shown, in some embodiments, the tube bundle plate 2 is provided with a plurality of heat exchange tubes 12 having an air inlet and an air outlet, the air inlet is located in the air inlet tube 6, and the air outlet is located in the gas reflux chamber 3011, the heat exchange tube 12 is U-shaped, the gas flow path is simple, and the flow direction stability is good.

[0031] like Figure 1-Figure 3 As shown, in some of the embodiments, the heat exchange tube 12 is detachably provided with a plurality of support plates 8, and the support plates 8 are slidably connected to the inner wall of the heat exchanger 1. The support plates 8 have good support for the heat exchange tube 12, thereby improving the stability of the heat exchange process. A slide rail 9 is provided at the bottom of the heat exchanger 1, and the support plate 8 is slidably provided on the slide rail 9, and the support plate 8 slides along the slide rail 9.

[0032] like Figure 1-Figure 3 As shown, in some of the embodiments, the air deflector 7 is trumpet-shaped, and the air deflector 7 can better guide the gas to the exhaust pipe 5 .

[0033] like Figure 1-Figure 3 As shown, in some embodiments, the air deflector 7 is penetrated by at least one first balancing hole 701, and the first balancing hole 701 is used to balance the pressure difference on both sides to improve the stress of the air deflector 7. The outer peripheral side of the cylindrical portion 601 is provided with a second balancing hole 6011 that penetrates it radially to improve the stress of the air intake cylinder 6.

[0034] The above embodiments are merely descriptions for clearly illustrating the present invention, and are not limitations on the implementation methods. For technicians in the relevant field, other different forms of changes or modifications can be made based on the above descriptions. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A layered spacer for a heat exchanger tube box, characterized in that: It includes a tube bundle plate detachably arranged at one end of the heat exchanger, and a tube box with an inner cavity detachably arranged at the end of the tube bundle plate away from the heat exchanger, an air intake pipe is inserted into the tube box, an exhaust pipe is arranged on the outer peripheral side of the tube box, an air intake cylinder is arranged in the inner cavity, one end of the air intake cylinder is connected to the air intake pipe, and the other end of the air intake cylinder is connected to the tube bundle plate, the air intake cylinder is communicated with the air intake pipe, a guide cover is arranged on the outer peripheral side of the air intake cylinder, the guide cover, the air intake cylinder and the inner cavity constitute a gas reflux chamber, and the gas reflux chamber is communicated with the exhaust pipe.

2. The layered spacer for a heat exchanger tube box according to claim 1, characterized in that: The air intake cylinder comprises a cylindrical portion and a tapered portion arranged at one end of the cylindrical portion away from the tube bundle plate, the cylindrical portion is connected to the tube bundle plate, and the tapered portion is connected to the air intake pipe.

3. The layered spacer for a heat exchanger tube box according to claim 1, characterized in that: An air intake flange is arranged at one end of the air intake pipe away from the heat exchanger.

4. The layered spacer for a heat exchanger tube box according to claim 1, characterized in that: An exhaust flange is arranged at one end of the exhaust pipe away from the heat exchanger.

5. The layered spacer for a heat exchanger tube box according to claim 1, characterized in that: The tube bundle plate is provided with a plurality of heat exchange tubes with air inlets and air outlets, the air inlets are located in the air inlet tube, the air outlets are located in the gas reflux cavity, and the heat exchange tubes are U-shaped.

6. The layered spacer for a heat exchanger tube box according to claim 5, characterized in that: The heat exchange tube is detachably provided with a plurality of support plates, and the support plates are slidably connected to the inner wall of the heat exchanger.

7. The layered spacer for a heat exchanger tube box according to claim 1, characterized in that: The deflector is trumpet-shaped.

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