Modularized pipeline waste gas cooling device

Abstract

The utility model provides a modularized pipeline waste gas cooling device which comprises a pipe base body arranged along an exhaust pipe, the pipe base body comprises a central ventilation channel, the ventilation channel is communicated with the interior of the exhaust pipe, a plurality of through grooves are formed in the outer wall of the pipe base body in the circumferential direction, a heat conduction cover is arranged at each through groove, the heat conduction cover comprises a plurality of heat absorption pipes, and each heat absorption pipe is inserted into the ventilation channel; a first liquid inlet and outlet and a second liquid inlet and outlet are formed in one end of the heat conduction cover, cooling liquid is arranged in the heat conduction cover, and the problem that the waste gas cooling efficiency of a large-pipe-diameter exhaust pipe is low is solved.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, in particular to a modular pipeline waste gas cooling device. Background Art

[0002] The waste gas discharged from industrial exhaust pipes often carries a large amount of heat. These waste gases mainly come from multiple processes such as fuel combustion, chemical reactions, and physical operations in industrial production. Their temperatures are usually relatively high and contain considerable thermal energy. If this thermal energy can be reasonably utilized, it will not only help reduce production costs but also reduce environmental pollution.

[0003] The traditional cooling method is to arrange the exhaust pipe in a zigzag or spiral manner and use an air cooling device here to take away the transferred heat. However, due to the large diameter of the industrial exhaust pipe, it is difficult to cool the gas in the central area of the pipe only by heat transfer through the pipe wall, and the heat recovery efficiency is not high. Content of the Utility Model

[0004] The utility model provides a modular pipeline waste gas cooling device, which solves the problem of low waste gas cooling efficiency of large-diameter exhaust pipes.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a modular pipeline waste gas cooling device, including a pipe matrix arranged along the exhaust pipe. The pipe matrix includes a ventilation channel in the center, and the ventilation channel is internally connected to the exhaust pipe. A plurality of through grooves are provided on the outer wall of the pipe matrix along the circumferential direction, and a heat conduction cover is provided at each through groove. The heat conduction cover includes a plurality of heat absorption tubes, and each heat absorption tube is inserted into the ventilation channel. One end of the heat conduction cover is provided with a first liquid inlet / outlet and a second liquid inlet / outlet, and a coolant is provided inside the heat conduction cover.

[0006] In a preferred solution, the heat conduction cover includes a sealing plate that seals the through groove. Each heat absorption tube is connected to one side of the sealing plate. The heat absorption tubes on the sealing plate are arranged in multiple rows and columns in parallel, and the heat absorption tubes of adjacent sealing plates are arranged in a vertically staggered manner.

[0007] In a preferred solution, a first collector cover is provided on the side of the sealing plate close to the pipe matrix. A plurality of liquid guide cylinders arranged in rows and columns are provided on the side of the first collector cover close to the sealing plate. The outer diameter of the liquid guide cylinder is smaller than the inner diameter of the first communication hole. One end of the heat absorption tube inserted into the ventilation channel is closed, and a first communication hole is provided at the end of the heat absorption tube connected to the sealing plate. Each liquid guide cylinder is inserted into the first communication hole, and a second communication hole is provided at the end of the liquid guide cylinder connected to the first collector cover. A second collector cover is provided on the side of the first collector cover away from the sealing plate. The first liquid inlet / outlet is provided on the second collector cover, and the second liquid inlet / outlet is provided on the first collector cover.

[0008] In a preferred solution, the liquid guide cylinder is welded to the first collector cover, and the heat absorption tube is welded to the sealing plate.

[0009] In a preferred embodiment, the second current collector cover is welded to the first current collector cover, the first current collector cover is welded to the sealing plate, and the sealing plate is detachably connected to the pipe base through bolts.

[0010] In a preferred embodiment, a flange structure is provided at the connection end of the pipe base and the exhaust pipe. The flange structures of the pipe base and the exhaust pipe are connected by bolts, and a sealing ring is provided between the flange structures of the pipe base and the exhaust pipe.

[0011] The beneficial effects of the present utility model are as follows: By inserting a modular cooling device along the original exhaust pipe, the contact area with the exhaust gas is increased by multiple heat absorption pipes inserted into the pipe interior, improving the heat conduction efficiency; the ends of the heat absorption pipes are closed, eliminating the worry of exhaust gas leakage; a heat conduction cover structure filled with coolant is adopted, and the coolant is circulated through a pipeline to facilitate heat energy recovery. Moreover, the liquid circulation can directly act on the heat absorption pipes through the liquid guide cylinders extending to the bottom ends of the heat absorption pipes, improving the fluidity of the coolant at the blind ends of the heat absorption pipes and quickly removing heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0013] Figure 1 is a connection schematic diagram of the present utility model.

[0014] Figure 2 is a structural diagram of the present utility model.

[0015] Figure 3 is an exploded view of the present utility model.

[0016] Figure 4 is a diagram showing the vertical staggered arrangement of the heat absorption pipes of the present utility model.

[0017] Figure 5 is the exploded view of the heat conduction cover of the present utility model Figure 1 .

[0018] Figure 6 is the exploded view of the heat conduction cover of the present utility model Figure 2 .

[0019] Figure 7 is a cross-sectional view of the heat conduction cover of the present utility model.

[0020] Figure 8 is a schematic diagram of the liquid guide cylinder inserted into the heat absorption pipe of the present utility model.

[0021] In the figure: pipe base 1; through groove 101; ventilation channel 102; flange structure 103; sealing ring 104; heat conduction cover 2; heat absorption pipe 201; sealing plate 202; liquid guide cylinder 203; first current collector cover 204; first communication hole 205; second current collector cover 206; first liquid inlet / outlet 207; second liquid inlet / outlet 208; second communication hole 209; exhaust pipe 3. Specific Embodiment

[0022] As Figure 1-8 In [reference], a modular pipeline waste gas cooling device includes a pipe base body 1 arranged along the exhaust pipe 3. The pipe base body 1 includes a central ventilation channel 102, and the ventilation channel 102 is internally connected to the exhaust pipe 3. A plurality of through grooves 101 are provided on the outer wall of the pipe base body 1 in the circumferential direction. A heat conduction cover 2 is provided at each through groove 101. The heat conduction cover 2 includes a plurality of heat absorption pipes 201, and each heat absorption pipe 201 is inserted into the ventilation channel 102. One end of the heat conduction cover 2 is provided with a first liquid inlet / outlet 207 and a second liquid inlet / outlet 208, and a coolant is provided inside the heat conduction cover 2.

[0023] One of the first liquid inlet / outlet 207 and the second liquid inlet / outlet 208 is for liquid inlet, and the other is for liquid outlet, and can be connected to an external temperature controller to circulate the coolant inside the heat conduction cover 2 and maintain a lower temperature. When the waste gas passing through the exhaust pipe 3 enters the ventilation channel 102 and passes through the area where the heat absorption pipes 201 are located, the heat absorption pipes 201 absorb heat and direct it to the coolant inside the heat conduction cover 2, reducing the temperature of the waste gas in the exhaust pipe 3.

[0024] In a preferred solution, the heat conduction cover 2 includes a sealing plate 202. The sealing plate 202 blocks the through groove 101. Each heat absorption pipe 201 is connected to one side of the sealing plate 202. The heat absorption pipes 201 on the sealing plate 202 are arranged in multiple rows and columns in parallel, and the heat absorption pipes 201 of adjacent sealing plates 202 are arranged vertically and staggeredly.

[0025] The pipe base body 1 can adopt a square pipe. Each of the four circumferential faces is provided with a through groove 101. The through groove 101 is covered with a sealing plate 202. A plurality of heat absorption pipes 201 are welded in a matrix on each sealing plate 202. The heat absorption pipes 201 are made of a metal material with a high thermal conductivity. Adjacent sealing plates 202 are arranged vertically, and opposite sealing plates 202 are arranged in parallel. The adjacent sealing plates 202 arranged vertically are staggered in the length direction and inserted into each other's gaps, so that as many heat absorption pipes 201 as possible are distributed in the ventilation channel 102, and the contact area with the waste gas is increased as much as possible on the premise of ensuring the waste gas flow-through area.

[0026] Since the heat absorption pipe 201 is cylindrical and has a smooth surface, the resistance to the passage of waste gas is small.

[0027] In a preferred embodiment, a first flow collector 204 is provided on the side of the sealing plate 202 close to the pipe base body 1. A plurality of liquid guide cylinders 203 arranged in rows and columns are provided on the side of the first flow collector 204 close to the sealing plate 202. The outer diameter of the liquid guide cylinder 203 is smaller than the inner diameter of the first communication hole 205. One end of the heat absorption tube 201 inserted into the air passage 102 is closed. A first communication hole 205 is provided at one end of the heat absorption tube 201 connected to the sealing plate 202. Each liquid guide cylinder 203 is inserted into the first communication hole 205. A second communication hole 209 is provided at one end of the liquid guide cylinder 203 connected to the first flow collector 204. A second flow collector 206 is provided on the side of the first flow collector 204 away from the sealing plate 202. A first liquid inlet / outlet 207 is provided on the second flow collector 206. A second liquid inlet / outlet 208 is provided on the first flow collector 204.

[0028] The coolant enters the interior of the second flow collector 206 through the first liquid inlet / outlet 207, enters the hollow inner cavity of the liquid guide cylinder 203 through the second communication hole 209, reaches the inner bottom end of the heat absorption tube 201 from the port, and then enters the inner cavity of the first flow collector 204 through the clamping cavity between the inner wall of the heat absorption tube 201 and the outer wall of the liquid guide cylinder 203 at the first communication hole 205, and is finally discharged through the second liquid inlet / outlet 208.

[0029] The flow directions of the first liquid inlet / outlet 207 and the second liquid inlet / outlet 208 can also be reversed.

[0030] In a preferred embodiment, the liquid guide cylinder 203 is welded to the first flow collector 204, and the heat absorption tube 201 is welded to the sealing plate 202.

[0031] In a preferred embodiment, the second flow collector 206 is welded to the first flow collector 204, the first flow collector 204 is welded to the sealing plate 202, and the sealing plate 202 is detachably connected to the pipe base body 1 by bolts.

[0032] During manufacturing, the sealing plate 202 and the first flow collector 204 are first drilled. Each liquid guide cylinder 203 is welded to the first flow collector 204 according to the designed positions. Each heat absorption tube 201 and the sealing plate 202 are welded into one body. Subsequently, the open end of the first flow collector 204 is buckled on the outside of the sealing plate 202. Each liquid guide cylinder 203 is inserted into the heat absorption tube 201. The contact edge between the first flow collector 204 and the sealing plate 202 is welded. Finally, the second flow collector 206 is buckled on the outside of the first flow collector 204 and the contact edge is welded to form the heat conduction cover 2. Full welding is used at each welding joint to avoid liquid leakage. The heat conduction cover 2 is detachably connected to the pipe base body 1. When other impurities such as oil liquid in the waste gas are deposited on the surface of the heat absorption tube 201 after a long time, the heat conduction cover 2 can be removed to clean the heat absorption tube 201.

[0033] In a preferred embodiment, a flange structure 103 is provided at the connection end of the pipe base body 1 and the exhaust pipe 3. The flange structures 103 of the pipe base body 1 and the exhaust pipe 3 are connected by bolts, and a sealing ring 104 is provided between the flange structures 103 of the pipe base body 1 and the exhaust pipe 3.

[0034] The pipe base body 1 and the heat conducting cover 2 form a modular cooling structure, which can be installed at any position along the pipeline.

[0035] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A modular pipeline exhaust gas cooling device, characterized by: The invention comprises a tube base (1) arranged along an exhaust pipe (3), the tube base (1) comprising a central air duct (102), the air duct (102) being in communication with the interior of the exhaust pipe (3), a plurality of through grooves (101) being provided on the outer wall of the tube base (1) along the circumferential direction, a heat-conducting cover (2) being provided at each of the through grooves (101), the heat-conducting cover (2) comprising a plurality of heat-absorbing tubes (201), each of the heat-absorbing tubes (201) being inserted into the air duct (102), a first liquid inlet and outlet (207) and a second liquid inlet and outlet (208) being provided at one end of the heat-conducting cover (2), and a cooling liquid being provided in the heat-conducting cover (2).

2. The modular pipeline exhaust gas cooling device according to claim 1 is characterized in that: The heat-conducting cover (2) comprises a sealing plate (202), the sealing plate (202) blocks the through groove (101), each heat absorption tube (201) is connected to one side of the sealing plate (202), the heat absorption tubes (201) on the sealing plate (202) are arranged in parallel in multiple rows and columns, and the heat absorption tubes (201) of adjacent sealing plates (202) are arranged in a vertical staggered manner.

3. The modular pipeline exhaust gas cooling device according to claim 2 is characterized in that: A first collecting cover (204) is provided on one side of the sealing plate (202) close to the tube base (1); a plurality of liquid guide tubes (203) arranged in rows and columns are provided on one side of the first collecting cover (204) close to the sealing plate (202); the outer diameter of the liquid guide tubes (203) is smaller than the inner diameter of the first connecting hole (205); one end of the heat absorbing tube (201) inserted into the air passage (102) is closed; and one end of the heat absorbing tube (201) connected to the sealing plate (202) is provided with the first connecting hole. (205), each liquid guiding tube (203) is inserted into the first connecting hole (205), a second connecting hole (209) is provided at one end of the liquid guiding tube (203) connected to the first collecting cover (204), a second collecting cover (206) is provided on the side of the first collecting cover (204) away from the sealing plate (202), a first liquid inlet and outlet (207) is provided on the second collecting cover (206), and a second liquid inlet and outlet (208) is provided on the first collecting cover (204).

4. The modular pipeline exhaust gas cooling device according to claim 1 is characterized in that: The liquid guiding cylinder (203) is connected to the first collecting cover (204) by welding, and the heat absorbing tube (201) is connected to the sealing plate (202) by welding.

5. The modular pipeline exhaust gas cooling device according to claim 4 is characterized in that: The second collecting cover (206) is connected to the first collecting cover (204) by welding, the first collecting cover (204) is connected to the sealing plate (202) by welding, and the sealing plate (202) is detachably connected to the tube base (1) by bolts.

6. The modular pipeline exhaust gas cooling device according to claim 1 is characterized in that: A flange structure (103) is provided at the connection end of the tube base (1) and the exhaust pipe (3); the tube base (1) and the flange structure (103) of the exhaust pipe (3) are connected by bolts; and a sealing ring (104) is provided between the tube base (1) and the flange structure (103) of the exhaust pipe (3).

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