Smoke port heat energy conversion equipment

Abstract

The utility model provides smoke opening heat energy conversion equipment, and relates to the field of high-temperature waste smoke waste heat recovery, the smoke opening heat energy conversion equipment is formed by connecting a plurality of sections of heat energy conversion devices end to end in series, the heat energy conversion device comprises a shell, and a waste smoke channel, a steam concentration channel and a smoke inlet channel are arranged in the shell in a head-to-tail penetrating mode in the length direction of the shell. The waste smoke channel, the steam concentration channel and the smoke inlet channel are arranged from top to bottom, a plurality of water cavity plates are transversely arranged in the waste smoke channel at intervals, clear water inlets and outlets are formed in the tops of the front end and the rear end of each water cavity plate, and the clear water inlets and outlets in the front ends are used for water inflow. The heat exchange pipe is used for replacing the water cavity plate of a plate-shaped structure, due to the fact that the interior of the water cavity plate is narrow, water passes through the water cavity plate in a flat and spread state, the water can fully exchange heat with external waste smoke when passing through the water cavity plate, meanwhile, the water temperature of the water outlet end is relatively high, and even gaseous low-pressure steam can be formed; compared with traditional heat exchange pipes for heat exchange, the heat exchange efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature waste smoke waste heat recovery, in particular to a smoke outlet heat energy conversion device. Background Art

[0002] The exhaust gas emitted by the setting machine in the printing and dyeing industry is a high-temperature hot gas with a temperature of about 180°C. The exhaust gas contains various harmful components such as oil smoke, dust and fabric fibers. If the exhaust gas is directly discharged into the atmosphere, it is neither environmentally friendly nor energy-saving. Therefore, the exhaust gas of the setting machine is now required to meet the emission standards to save energy and reduce environmental pollution.

[0003] In terms of the current waste gas treatment of the setting machine, most printing and dyeing enterprises simply suck the waste gas from the pipeline through the fan and discharge it into the atmosphere after filtering it through the purification equipment. The temperature of the discharged flue gas is still high, wasting a lot of heat energy.

[0004] In order to improve economic benefits, some large printing and dyeing enterprises have carried out waste heat recovery on the waste gas of existing setting machines. The existing waste heat recovery equipment exchanges heat through heat exchange tubes. Since water passes through the tubes quickly, the water cannot fully absorb the heat energy of the high-temperature waste gas. The temperature of the waste gas after heat recovery is still relatively high, around 70°C, and the waste heat is still wasted. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a smoke outlet heat energy conversion device, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a smoke outlet heat energy conversion device, the smoke outlet heat energy conversion device is composed of multiple heat energy conversion devices connected in series end to end, the heat energy conversion device includes a shell, the shell is provided with a waste smoke channel, a steam concentration channel, and a smoke inlet channel along its length direction, the waste smoke channel, the steam concentration channel, and the smoke inlet channel are arranged from top to bottom, and a plurality of water cavity plates are arranged at a horizontal interval in the waste smoke channel, and the tops of the front and rear ends of the water cavity plates are provided with clean water inlets and outlets, the clean water inlet and outlet at the front end is used for water intake, the clean water inlets and outlets between two adjacent heat energy conversion devices are connected by a steam elbow, the clean water inlet and outlet at the tail end are connected to the steam concentration channel through a steam outlet pipe, the smoke inlet channel is connected to the smoke exhaust device through a waste smoke inlet, the outlet end at the tail end is connected to the waste smoke channel through a waste smoke elbow, and the outlet of the waste smoke channel at the head end is connected to a fan for smoke exhaust.

[0009] Preferably, the steam concentration channel is provided with a plurality of steam outlets for exhausting gas, and the steam outlets are sequentially connected with a steam exhaust pipe and a secondary heater.

[0010] Preferably, the secondary heater is an electric heater or a boiler heater.

[0011] Preferably, the water cavity plate is formed by welding two metal plates along the four sides, and the metal plates on both sides are provided with dense protrusions protruding outwards.

[0012] Preferably, the metal plate is made of copper or stainless steel.

[0013] Preferably, a sedimentation chamber is provided in the shell below the waste smoke passage, and a sewage cleaning port corresponding to the sedimentation chamber is provided on the side of the sedimentation chamber.

[0014] (III) Beneficial effects

[0015] The utility model provides a smoke outlet heat energy conversion device, which has the following beneficial effects:

[0016] 1. The smoke outlet heat energy conversion device replaces the heat exchange tube with the water cavity plate of the plate structure of this application. Since the inside of the water cavity plate is narrow, the water is spread out through the water cavity plate. When passing through the water cavity plate, the water can fully exchange heat with the external waste smoke. At the same time, the water temperature at the water outlet is relatively high, and can even present gaseous low-pressure steam. Compared with the traditional heat exchange tube heat exchange, the heat exchange efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an axonometric diagram of the thermal energy conversion device of the utility model;

[0018] Figure 2 This is a schematic diagram of the heat energy conversion device of the utility model connected to the smoke exhaust device;

[0019] Figure 3 It is a schematic diagram of multiple heat energy conversion devices connected in series according to the utility model.

[0020] In the figure: 0 heat energy conversion device, 1 shell, 2 water cavity plate, 3 clean water inlet and outlet, 4 steam outlet pipe, 5 waste smoke channel, 6 raised part, 7 smoke inlet channel, 8 waste smoke inlet, 9 smoke exhaust equipment, 10 fan, 11 clean water inlet pipe, 12 steam exhaust pipe, 13 secondary heater, 14 steam concentration channel, 15 sedimentation chamber, 16 sewage outlet, 17 steam outlet, 18 waste smoke elbow, 19 steam elbow, 20 spray pipe. DETAILED DESCRIPTION

[0021] The utility model provides a heat energy conversion device for a smoke outlet, such as Figure 1-3As shown, the smoke outlet heat energy conversion device is composed of multiple heat energy conversion devices 0 connected in series end to end. The heat energy conversion device 0 includes a shell 1, which is in the shape of a rectangular parallelepiped. The shell 1 is provided with a waste smoke channel 5, a steam concentration channel 14, and a smoke inlet channel 7 along its length direction. The waste smoke channel 5, the steam concentration channel 14, and the smoke inlet channel 7 are arranged from top to bottom. A plurality of water cavity plates 2 are arranged at horizontal intervals in the waste smoke channel 5, and clean water inlets and outlets 3 are provided at the tops of the front and rear ends of the water cavity plates 2.

[0022] like Figure 3 As shown, in order to improve the heat recovery efficiency, multiple heat energy conversion devices 0 are connected in series head to tail. The clean water inlet and outlet 3 at the front end is used for water intake, the clean water inlet and outlet 3 between two adjacent heat energy conversion devices 0 are connected through a steam elbow 19, and the clean water inlet and outlet 3 at the tail end of the tail heat energy conversion device 0 is connected to the steam concentration channel 14 through a steam outlet pipe 4.

[0023] like Figure 2 As shown, the head of the smoke inlet channel 7 of the first section of the heat energy conversion device 0 is closed, and each section of the heat energy conversion device 0 is provided with a waste smoke inlet 8 connected to the smoke inlet channel 7. Each section of the smoke inlet channel 7 is connected to the smoke exhaust device 9 through the waste smoke inlet 8, and the air outlet at the tail is connected to the waste smoke channel 5 through the waste smoke elbow 18. The outlet of the waste smoke channel 5 at the head is connected to the fan 10 for exhausting smoke.

[0024] The heat-absorbing steam is first concentrated in the steam concentration channel 14, and a plurality of steam outlets 17 for exhausting gas are arranged on the steam concentration channel 14. Since the temperature of the clean water after heat absorption is only 70-100°C, in order to enable it to be reused by the setting machine, it needs to be heated to above 150°C and the corresponding steam pressure. The steam outlet 17 is connected in sequence with a steam exhaust pipe 12 and a secondary heater 13.

[0025] The secondary heater 13 is an electric heater or a boiler heater. The electric heater is a heating wire, both of which are existing commercial products.

[0026] The water chamber plate 2 is formed by welding two metal plates along the four sides, and the metal plates on both sides are provided with dense outwardly protruding protrusions 6. The setting of the protrusions 6 can reduce the internal water flow velocity, increase its residence time, and improve the heat energy absorption rate; on the other hand, it can increase the contact area between water and exhaust smoke and increase the heat exchange efficiency.

[0027] As a preferred solution, the metal plate is made of copper or stainless steel.

[0028] The housing 1 has a sedimentation chamber 15 located below the waste smoke channel 5, and a cleaning port 16 corresponding to the sedimentation chamber 15 is provided on the side of the sedimentation chamber 15. A plurality of spray pipes 20 are provided above the water chamber plate 2 in the housing 1, and a plurality of nozzles are provided on the spray pipes 20 to aim at the water chamber plate 2. The water inlet end of the spray pipe 20 is connected to the steam concentration channel 14, and the heated steam is used to supply steam to the spray pipe 20. A valve is provided on the water inlet pipe of the spray pipe 20.

[0029] The waste smoke passing through the waste smoke channel 5 collides between the water cavity plates 2 , and some of the impurities contained therein will settle at the bottom, and the smoke and dust impurities washed off by the spray will accumulate in the sedimentation chamber 15 , and the internal impurities can be discharged through the cleaning port 16 .

[0030] The top of the housing 1 is covered by a cover plate for sealing to prevent the exhaust smoke from leaking out.

[0031] Working principle: Figure 2 and Figure 3 As shown, the direction of waste smoke: waste smoke is discharged from the smoke exhaust device 9 of the setting machine through the waste smoke inlet 8 of each section of the heat energy conversion device 0 and enters the smoke inlet channel 7. The waste smoke in the smoke inlet channel 7 is collected at the tail section of the heat energy conversion device 0 and then enters the waste smoke channel 5 through the waste smoke elbow 18, and then is discharged through the head end of the waste smoke channel 5 of the first section of the heat energy conversion device 0. The direction of steam: clean water enters the water cavity plate 2 from the clean water inlet and outlet 3 of the first section of the heat energy conversion device 0, passes through a number of water-saving cavity plates 2 in sequence through the steam elbow 19, and then enters the steam concentration channel 14 through the steam outlet pipe 4. The steam in the steam concentration channel 14 enters the steam exhaust pipe 12 through the steam outlet 17, and then is heated to the rated temperature by the secondary heater 13 and then supplied to the setting machine for use again. It should be noted that the direction of the waste smoke in the waste smoke channel 5 is opposite to the direction of the clean water in the water cavity plate 2.

[0032] 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 smoke outlet heat energy conversion device, characterized in that: The smoke outlet heat energy conversion device is composed of a plurality of heat energy conversion devices (0) connected end to end in series. The heat energy conversion device (0) comprises a shell (1). The shell (1) is provided with a waste smoke channel (5), a steam concentration channel (14), and a smoke inlet channel (7) running through the shell (1) along its length direction. The waste smoke channel (5), the steam concentration channel (14), and the smoke inlet channel (7) are arranged from top to bottom. A plurality of water cavity plates (2) are arranged in a horizontal spacing in the waste smoke channel (5). The tops of the front and rear ends of the water cavity plates (2) are provided with cleaning A water inlet and outlet (3), the clean water inlet and outlet (3) at the front end is used for water intake, the clean water inlet and outlet (3) between two adjacent heat energy conversion devices (0) are connected via a steam elbow (19), the clean water inlet and outlet (3) at the rear end is connected to a steam concentration channel (14) via a steam outlet pipe (4), the smoke inlet channel (7) is connected to a smoke exhaust device (9) via a waste smoke inlet (8), the outlet end at the rear end is connected to a waste smoke channel (5) via a waste smoke elbow (18), and the outlet of the waste smoke channel (5) at the front end is connected to a fan (10) for exhausting smoke.

2. A smoke outlet heat energy conversion device according to claim 1, characterized in that: The steam concentration channel (14) is provided with a plurality of steam outlets (17) for exhausting gas, and the steam outlets (17) are sequentially connected to a steam exhaust pipe (12) and a secondary heater (13).

3. A smoke outlet heat energy conversion device according to claim 2, characterized in that: The secondary heater (13) is an electric heater or a boiler heater.

4. The heat energy conversion device at the smoke outlet according to claim 1, characterized in that: The water cavity plate (2) is formed by welding two metal plates along the four sides, and the metal plates on both sides are provided with dense protrusions (6) protruding outwards.

5. The heat energy conversion device at the smoke outlet according to claim 4, characterized in that: The metal plate is made of copper or stainless steel.

6. The heat energy conversion device at the smoke outlet according to claim 1, characterized in that: A sedimentation chamber (15) is located below the waste smoke passage (5) in the housing (1), and a sewage cleaning port (16) corresponding to the sedimentation chamber (15) is provided on the side of the sedimentation chamber (15).

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