CN219177735U - Waste heat utilization environment-friendly device - Google Patents

Waste heat utilization environment-friendly device Download PDF

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Publication number
CN219177735U
CN219177735U CN202223448990.4U CN202223448990U CN219177735U CN 219177735 U CN219177735 U CN 219177735U CN 202223448990 U CN202223448990 U CN 202223448990U CN 219177735 U CN219177735 U CN 219177735U
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CN
China
Prior art keywords
heat exchange
catalytic combustion
waste heat
channel
combustion chamber
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CN202223448990.4U
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Chinese (zh)
Inventor
肖建衡
杨楚丙
黄志健
潘涛亮
张其诺
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Zhuhai Rongsheng Super Micro Wire Co ltd
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Zhuhai Rongsheng Super Micro Wire Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

Abstract

The utility model provides a waste heat utilization environment-friendly device which comprises a first heat exchange box, a second heat exchange box and a first heat exchange device, wherein the first heat exchange box is provided with a first heat exchange space, and a first water inlet channel and a steam channel which are communicated with the first heat exchange space; the waste heat utilization environment-friendly device also comprises a catalytic combustion chamber, and the first heat exchange space is positioned at the periphery of the catalytic combustion chamber; the waste heat utilization environment-friendly device comprises an exhaust gas inlet channel and an exhaust gas channel, and the exhaust gas inlet channel, the catalytic combustion chamber and the exhaust gas channel are sequentially communicated; a catalytic carrier is arranged in the catalytic combustion chamber; the first heat exchange box is provided with an inner wall, the inner wall is arranged between the catalytic combustion chamber and the first heat exchange space, and heat exchange is carried out between the catalytic combustion chamber and the first heat exchange space through the inner wall. The first heat exchange box is arranged around the periphery of the catalytic combustion chamber, and the high temperature generated by the catalytic combustion of the waste gas in the catalytic combustion chamber directly heats the water in the first heat exchange box to generate steam, so that the heat efficiency is higher on the basis of environmental protection.

Description

Waste heat utilization environment-friendly device
Technical Field
The utility model relates to the field of waste gas treatment, in particular to a waste heat utilization environment-friendly device.
Background
When the enameled wire is produced, a large amount of waste gas is generated in the baking furnace in the baking stage, more heat can be taken away by exhaust emission, and the redundant heat is emitted in the air, so that energy is wasted, and the enameled wire is not beneficial to energy conservation and environmental protection. The existing waste gas treatment and utilization method is that after the waste gas of the baking furnace is discharged, the waste gas is treated by waste gas treatment equipment and enters a waste heat utilization device after reaching standards, the waste heat utilization device comprises a heat exchange water tank, the heat exchange water tank is heated by high-temperature waste gas after environmental protection treatment by the waste gas treatment equipment, and a large amount of steam is generated for the annealing furnace to utilize after the water in the heat exchange water tank is heated by the high-temperature waste gas.
The existing waste heat utilization device recycles the heat of the waste gas, but the recycling rate of the heat of the waste gas is not high, and part of the heat is wasted.
Disclosure of Invention
The utility model aims to provide a waste heat utilization environment-friendly device which has high waste gas heat utilization rate and can simultaneously carry out environment-friendly treatment on waste gas.
In order to achieve the above object, the present utility model provides an environmental protection device for waste heat utilization, comprising a first heat exchange box having a first heat exchange space, a first water inlet channel and a steam channel communicating with the first heat exchange space; the waste heat utilization environment-friendly device also comprises a catalytic combustion chamber, and the first heat exchange space is positioned at the periphery of the catalytic combustion chamber; the waste heat utilization environment-friendly device comprises an exhaust gas inlet channel and an exhaust gas channel, and the exhaust gas inlet channel, the catalytic combustion chamber and the exhaust gas channel are sequentially communicated; a catalytic carrier is arranged in the catalytic combustion chamber; the first heat exchange box is provided with an inner wall, the inner wall is arranged between the catalytic combustion chamber and the first heat exchange space, and heat exchange is carried out between the catalytic combustion chamber and the first heat exchange space through the inner wall.
Compared with the fact that hot gas generated after catalytic combustion of waste gas heats the first heat exchange space, the first heat exchange box surrounds the periphery of the catalytic combustion chamber, the high temperature generated by catalytic combustion of the waste gas in the catalytic combustion chamber directly heats the first heat exchange box, the catalytic combustion of the waste gas and the waste heat utilization are in the same environment, heat loss is less, efficiency of generating steam by water in the first heat exchange space is higher, and heat utilization rate is improved; the waste gas reaches the emission standard after catalytic combustion, and meets the requirement of environmental protection. The environmental protection system and the waste heat utilization system are integrated in the same equipment, so that the space occupation of the equipment is reduced.
According to the scheme, the waste heat utilization environment-friendly device further comprises a first heater, and the first heater is arranged in the air inlet and exhaust channel.
Therefore, the temperature of the waste gas generated at the initial stage of the starting of the baking furnace is lower, catalytic combustion or catalytic combustion cannot be performed after the waste gas enters the catalytic combustion chamber, and the temperature of the waste gas can reach the temperature required by the catalytic combustion by heating the inside of the waste gas inlet channel through the first heater, so that the waste gas is ensured to enter the catalytic combustion chamber and then is fully catalytic combusted.
According to the scheme, the catalytic combustion chamber comprises a placement platform; at least two layers of placing platforms are sequentially arranged along the direction from the exhaust gas inlet channel to the exhaust gas channel; the placing platform is used for placing the catalytic carrier.
Therefore, the arrangement of the multi-layer placement platform carrying the catalytic carrier can improve the contact area of the waste gas and the catalytic carrier in the catalytic combustion chamber, so that the waste gas is in full contact with the catalytic carrier, and the catalytic combustion efficiency of the waste gas is improved.
According to the scheme, the waste heat utilization environment-friendly device further comprises a heat preservation door, and the heat preservation door and the first heat exchange box encircle the periphery of the catalytic combustion chamber.
Therefore, the heat preservation door can be opened to overhaul and maintain the interior of the waste heat utilization environment-friendly device, and the catalytic carrier in the catalytic combustion chamber can be replaced; the heat preservation door has the heat preservation effect, prevents the heat in the catalytic combustion chamber from overflowing.
According to the scheme, the waste heat utilization environment-friendly device further comprises an insulation layer, and the insulation layer is located on the periphery of the first heat exchange box.
Therefore, the arrangement of the heat preservation layer preserves the heat of the water in the first heat exchange box, and the temperature in the first heat exchange box can be prevented from falling too fast, so that the steam pressure in the first heat exchange box is not constant.
According to the scheme, the waste heat utilization environment-friendly device further comprises a second heater, and the second heater is arranged inside the first heat exchange space.
Therefore, at the initial starting stage of the waste heat utilization environment-friendly device, the temperature of water in the first heat exchange box is low, a large amount of steam cannot be generated, and at the moment, the second heater can heat the inside of the first heat exchange space, so that the efficiency of converting water in the first heat exchange box into steam is improved.
According to the scheme, the waste heat utilization environment-friendly device further comprises a second heat exchange box, wherein the second heat exchange box is provided with a second heat exchange space; the second heat exchange box is positioned above the first heat exchange box; the second heat exchange space is located at the outer periphery of the exhaust passage.
Therefore, after the first heat exchange box absorbs a part of heat generated by catalytic combustion of the waste gas, the waste gas entering the exhaust channel still has a certain amount of heat, and the second heat exchange box can recycle the heat generated by catalytic combustion of the waste gas for the second time, so that the heat is prevented from being wasted.
According to the above scheme, the second heat exchange space is annular; the waste heat utilization environment-friendly device also comprises a baffle plate; the second heat exchange box comprises a second water inlet channel and a water outlet channel; the partition board is positioned in the second heat exchange space and is blocked between the second water inlet channel and the water outlet channel so that the second heat exchange space becomes a unidirectional flow channel.
Therefore, the partition plate is blocked between the second water inlet channel and the water outlet channel, water entering the second heat exchange box from the second water inlet channel can be discharged from the water outlet channel only after the water enters the second heat exchange box from the second water inlet channel and winds the air outlet channel for a circle, the heat absorption time of the water in the second heat exchange box is prolonged, and the water in the second heat exchange box can absorb heat fully.
According to the above aspect, the exhaust passage includes a first exhaust section, and the cross-sectional area of the first exhaust section is gradually smaller along the exhaust direction of the exhaust passage.
Therefore, the cross-sectional area of the first exhaust section gradually becomes smaller along the exhaust direction of the exhaust channel, so that a larger heat exchange area is formed between the second heat exchange space and the exhaust channel, and the heat absorption efficiency of water in the second heat exchange box is improved.
According to the scheme, the waste heat utilization environment-friendly device further comprises a first water supply tank and a second water supply tank; a first liquid level switch is arranged in the first water supply tank, and a second liquid level switch is arranged in the second water supply tank; the first water supply tank is positioned above the second water supply tank, and the first water supply tank is communicated with the second water supply tank; the second water supply tank is communicated with the first heat exchange space, and the highest liquid level of the second water supply tank is lower than the air inlet of the steam channel; the air inlet is communicated with the first heat exchange space.
Therefore, the second water supply tank can realize continuous water supplementing of the first heat exchange space; the first water supply tank continuously supplies water to the second water supply tank, and the second water supply tank can be a small-volume water supply tank, so that the space occupation of the second water supply tank is reduced; the waste gas can be partly excessive in the heat that catalytic combustion produced in catalytic combustion room, and the second supply tank is located the periphery of catalytic combustion room and can absorb the heat that overflows and preheat, and when the second supply tank had less volume, the water in the second supply tank rose more fast.
Drawings
Fig. 1 is a first view of a construction of the waste heat utilization apparatus of the present utility model.
Fig. 2 is a view showing a construction of a second view of the waste heat utilization apparatus of the present utility model.
Fig. 3 is a cross-sectional view of a third view of the waste heat utilization device of the present utility model.
Fig. 4 is a cross-sectional view of a fourth view of the waste heat utilization device of the present utility model.
Fig. 5 is a structural view of the waste heat utilization environment-friendly device of the present utility model, with a part of the structure omitted.
Fig. 6 is a cross-sectional view of a fifth view of the waste heat utilization apparatus of the present utility model.
Fig. 7 is a cross-sectional view of a sixth view of the waste heat utilization device of the present utility model.
The utility model is further described below with reference to the drawings and examples.
Detailed Description
Referring to fig. 1, 2 and 5, the waste heat utilization environment-friendly device of the present embodiment includes a first heat exchange tank 1, a first heating pipe 301, a first thermocouple 302, a second thermocouple 402, a second heating pipe 401, a drawer 5, a heat insulation door 601, a heat insulation layer 602, a second heat exchange tank 7, a first water supply tank 801 and a second water supply tank 802. The first heating pipe 301 is a first heater of the present utility model, and the second heating pipe 401 is a second heater of the present utility model.
Referring to fig. 1 and 3 to 5, the first heat exchange tank 1 includes an inner wall 104, an outer wall 103, a first water inlet passage 1011, an air pressure balance passage 1012, and a communication pipe 105; referring to fig. 7 again, a first heat exchanging space 101 with a cross section of "" is formed between the inner wall 104 and the outer wall 103, the first water inlet channel 1011 and the air pressure balancing channel 1012 are all connected to the first heat exchanging space 101, the first water inlet channel 1011 is connected to the lower part of the first heat exchanging space 101, and the air pressure balancing channel 1012 is connected to the upper part of the first heat exchanging space 101. The communication pipes 105 are positioned at the lower part of the first heat exchange tank 1, the communication pipes 105 are communicated with the opposite sides of the first heat exchange space 101, and two communication pipes 105 are arranged side by side. The top of outer wall 103 is provided with a plurality of first steam holes 1031, and gas collection box 106 and outer wall 103 fixed connection, a plurality of first steam holes 1031 and gas collection box 106 intercommunication, and gas collection box 106 has second steam hole 1061, and steam channel 1013 fixed connection is in the second steam hole 1061 place of gas collection box 106, and steam channel 1013 communicates with first heat exchange space 101. The bottom of the first heat exchange tank 1 is also connected with a drain pipe 9, and the drain pipe 9 can be used to drain water in the first heat exchange space 101 when the waste heat utilization environment-friendly device is serviced.
Referring to fig. 4, an insulation layer 602 is disposed on the outer periphery of the outer wall 103, and the insulation layer 602 can prevent the temperature in the first heat exchange space 101 from being inconstant, prevent the vapor pressure in the first heat exchange space 101 from being inconstant, and ensure that the annealing furnace row line is not oxidized. The heat preservation layer 602 is a new heat preservation material ceramic fiber board, the thickness of the fiber board is 50mm, the surface temperature of the environment-friendly device is about 40 degrees, and a good heat preservation effect is achieved. Referring to fig. 1 again, a first slide 803 is fixedly connected to the outside of the thermal insulation layer 602, the second water supply tank 802 is connected to the first slide 803 in a matching manner, and the height of the second water supply tank 802 is adjustable. The second water supply tank comprises a transparent second liquid level indicating pipe 8021, the second liquid level indicating pipe 8021 extends vertically, two ends of the second liquid level indicating pipe 8021 are respectively communicated with the upper part and the lower part of the second water supply tank 802, and the liquid level of the second liquid level indicating pipe 8021 is the liquid level of the second water supply tank 802. The first water inlet passage 1011 communicates with the lower portion of the second water supply tank 802, and the air pressure balancing passage 1012 communicates with the upper portion of the second water supply tank 802; the second water supply tank 802 supplies water to the first heat exchange space 101 through the first water inlet passage 1011, and the second water supply tank 802 is vented to the first heat exchange space 101 through the air pressure balancing passage 1012 to balance the air pressure in the second water supply tank 802.
Referring to fig. 1 and 3, a second ball float valve is provided in the second water supply tank 802, and the second ball float valve is provided at a water inlet of the second water supply tank 802 to adjust a liquid level of the second water supply tank 802. The first water supply tank 801 is fixed above the second water supply tank 802, and a water outlet of the first water supply tank 801 is higher than a water inlet of the second water supply tank 802, and the water inlet of the first water supply tank 801 is provided with a first float valve for controlling a liquid level of the first water supply tank 801. The first water supply tank 801 includes a transparent first liquid level indicator tube 8011, and the working principle thereof is the same as that of the second liquid level indicator tube 8021, and will not be described herein. The highest liquid level of the second water supply tank is lower than the steam hole 1031, and the air inlet of the steam channel 1013 communicates with the steam hole 1031.
Referring to fig. 3 and 4, the heat-insulating door 601 is detachably connected to one side of the first heat exchanging box 1, the heat-insulating door 601 and the first heat exchanging box 1 form a closed catalytic combustion chamber 2, and the heat-insulating door 601 and the first heat exchanging box 1 encircle the outer circumference of the catalytic combustion chamber 2. The inner wall 104 is provided between the catalytic combustor 2 and the first heat exchange space 101, through which heat exchange is performed between the catalytic combustor 2 and the first heat exchange space 101. The inner wall 104 of the first heat exchange box 1 is provided with a second slide way 102, the second slide way 102 is of a convex structure facing the catalytic combustion chamber 2, 3 layers of second slide ways 102 are vertically arranged in the first heat exchange box 1, a drawer 5 is arranged on each layer of second slide way 102, a bottom plate of the drawer 5 is provided with strip-shaped through holes, the drawer 5 is used for placing a catalytic carrier, the catalytic carrier preferably adopts a cordierite honeycomb ceramic body as a first carrier, Y-A l O3 is a second carrier, precious metals Pd and Pt are used as main active components, and the novel efficient organic waste gas purifying catalyst is provided. The intake and exhaust gas passage 201 is located at the bottom of the catalytic combustor 2, and the exhaust gas passage 202 is located at the top of the catalytic combustor 2. The drawer 5 is a placement platform of the present utility model.
Referring to fig. 2 to 4, the second heat exchange tank 7 is fixedly coupled to the top of the first heat exchange tank 1, and the second heat exchange tank 7 has a ring-shaped second heat exchange space 701, and the second heat exchange space 701 surrounds the outer circumference of the exhaust passage 202. The exhaust channel 202 comprises a first exhaust section 2021 and a second exhaust section 2022 which are sequentially communicated from bottom to top, and the first exhaust section 2021 is in a square frustum shape; the cross-sectional area of the first exhaust section 2021 becomes gradually smaller along the exhaust direction of the exhaust passage 202 so that the second heat exchange space 701 has a larger heat exchange area. The second water inlet passage 7011 and the water outlet passage 7012 are respectively communicated with the second heat exchange space 701; referring to fig. 6 again, the partition 702 is located in the second heat exchange space 701 and is fixedly connected to the second heat exchange tank 7, the partition 702 is located between the second water inlet channel 7011 and the water outlet channel 7012, the partition 702 is blocked between the second water inlet channel 7011 and the water outlet channel 7012 along the first direction, and water flows out of the water outlet channel 7012 along the second direction around the air outlet channel 202 for one circle after entering the second heat exchange space 701 from the second water inlet channel 7011. The first direction and the second direction are circumferential directions of the second heat exchange space, and the first direction and the second direction are opposite. The exhaust direction along the exhaust passage 202 is upward.
Referring to fig. 3 to 5, the first heating pipes 301 are U-shaped heating pipes, and a plurality of first heating pipes 301 are sequentially arranged in the exhaust gas inlet channel 201; the first thermocouple 302 and the second thermocouple 402 are located in the exhaust inlet channel 201 and are used for detecting the temperature of the exhaust gas entering the exhaust inlet channel 201, the second thermocouple 402 is located above the first thermocouple 302, and when the first thermocouple 302 detects that the temperature of the exhaust gas entering the exhaust inlet channel 201 is lower than a first preset value, the first heating pipe 301 starts to heat the exhaust gas entering the exhaust inlet channel 201; when the second thermocouple 402 detects that the temperature of the exhaust gas entering the exhaust gas inlet passage 201 is equal to or higher than the second preset value, the first heating pipe 301 stops heating. The second heating pipes 401 are located in the communicating pipe 105 and are used for heating water in the first heat exchange space 101, and the second heating pipes 401 can be opened one by one or simultaneously.
The waste heat utilization environment-friendly device is communicated with an exhaust gas discharge port of a baking furnace, and exhaust gas generated by the baking furnace enters the catalytic combustion chamber 2 through the exhaust gas inlet channel 201 and then contacts with a catalytic carrier for catalytic combustion, and the exhaust gas after catalytic combustion reaches the discharge standard and is discharged into the atmosphere through the exhaust channel 202. When the first thermocouple 302 detects that the temperature of the exhaust gas entering the exhaust gas inlet channel 201 is lower than the temperature required by catalytic combustion, the first heating pipe 301 starts to heat the exhaust gas entering the exhaust gas inlet channel 201 to the temperature required by catalytic reaction, so that the exhaust gas is ensured to be fully catalytically combusted, and the exhaust gas reaches the emission standard. When the second thermocouple 402 detects that the temperature of the exhaust gas entering the exhaust gas inlet passage 201 reaches the temperature required for catalytic combustion, the first heating pipe 301 stops heating. The exhaust gas generates a large amount of heat energy to heat the water in the first heat exchange space 101 during catalytic combustion, and the water in the first heat exchange space 101 is heated to generate steam and then is conveyed from the steam channel 1013 to a steam use point in a factory. The heat of the catalytic combustion of the exhaust gas still has a higher temperature after being absorbed by a part of the water in the first heat exchange space 101, the exhaust gas continues to travel upwards into the exhaust channel 202, the water in the second heat exchange space 701 continues to absorb the heat of the exhaust gas, and the water in the second heat exchange space 701 is transported to a hot water use point in a factory after being heated by the exhaust gas. As the water in the first heat exchange space 101 is continuously evaporated, the second water supply tank 802 continuously supplements the first heat exchange space 101 with water, when the water in the second water supply tank 802 falls to a low level, the second float valve is opened, the water in the first water supply tank 801 flows into the second water supply tank 802 under the action of gravity, and when the water in the first water supply tank 801 falls to a low level, the first float valve is opened, and the first water supply tank 801 is supplemented with water from the outside.
According to the waste heat utilization environment-friendly device, the waste gas catalytic combustion system and the waste heat utilization system are integrated, the catalytic combustion chamber 2 is positioned in the first heat exchange box 1, so that heat generated by catalytic combustion of waste gas in the catalytic combustion chamber 2 overflows as little as possible, and the waste heat utilization efficiency is improved; the second heat exchange box 7 can recycle the heat generated by the catalytic combustion of the waste gas again; the floating ball valve can realize automatic water supplementing of the first heat exchange space 101; when the temperature of the exhaust gas in the initial stage of the furnace startup is low, the first heating pipe 301 can enable the exhaust gas in the catalytic combustion chamber 2 to quickly reach the temperature required by catalytic combustion; when the amount of steam generated by the water in the first heat exchanging space 101 is insufficient, the second heating pipe 401 may perform auxiliary heating on the water in the first heat exchanging space 101 to increase the efficiency of generating steam in the first heat exchanging space 101.
Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the utility model, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the utility model.

Claims (10)

1. The waste heat utilization environment-friendly device comprises a first heat exchange box, wherein the first heat exchange box is provided with a first heat exchange space, and a first water inlet channel and a steam channel which are communicated with the first heat exchange space; the method is characterized in that:
the waste heat utilization environment-friendly device further comprises a catalytic combustion chamber, and the first heat exchange space is positioned at the periphery of the catalytic combustion chamber;
the waste heat utilization environment-friendly device comprises an air inlet and exhaust channel, and the air inlet and exhaust channel, the catalytic combustion chamber and the exhaust channel are sequentially communicated;
a catalytic carrier is arranged in the catalytic combustion chamber;
the first heat exchange box comprises an inner wall, the inner wall is arranged between the catalytic combustion chamber and the first heat exchange space, and heat exchange is carried out between the catalytic combustion chamber and the first heat exchange space through the inner wall.
2. The waste heat utilization environmental protection device of claim 1, wherein:
the waste heat utilization environment-friendly device further comprises a first heater, and the first heater is arranged in the air inlet and exhaust channel.
3. The waste heat utilization environmental protection device according to claim 1 or 2, characterized in that:
the catalytic combustion chamber comprises a placement platform; at least two layers of placing platforms are sequentially arranged along the direction from the exhaust gas inlet channel to the exhaust gas channel; the catalytic carrier is placed on the placement platform.
4. The waste heat utilization environmental protection device according to claim 1 or 2, characterized in that:
the waste heat utilization environment-friendly device further comprises a heat preservation door, and the heat preservation door and the first heat exchange box encircle the periphery of the catalytic combustion chamber.
5. The waste heat utilization environmental protection device according to claim 1 or 2, characterized in that:
the waste heat utilization environment-friendly device further comprises an insulation layer, and the insulation layer is located on the periphery of the first heat exchange box.
6. The waste heat utilization environmental protection device according to claim 1 or 2, characterized in that:
the waste heat utilization environment-friendly device further comprises a second heater, and the second heater is arranged inside the first heat exchange space.
7. The waste heat utilization environmental protection device according to claim 1 or 2, characterized in that:
the waste heat utilization environment-friendly device further comprises a second heat exchange box, wherein the second heat exchange box is provided with a second heat exchange space; the second heat exchange box is positioned above the first heat exchange box; the second heat exchange space is located at an outer periphery of the exhaust passage.
8. The waste heat utilization environmental protection device of claim 7, wherein:
the second heat exchange space is annular;
the waste heat utilization environment-friendly device also comprises a baffle plate;
the second heat exchange box comprises a second water inlet channel and a water outlet channel;
the partition plate is positioned in the second heat exchange space and is blocked between the second water inlet channel and the water outlet channel so that the second heat exchange space becomes a unidirectional flow channel.
9. The waste heat utilization environmental protection device according to claim 1 or 2, characterized in that:
the exhaust passage includes a first exhaust section having a cross-sectional area that gradually decreases along an exhaust direction of the exhaust passage.
10. The waste heat utilization environmental protection device according to claim 1 or 2, characterized in that:
the waste heat utilization environment-friendly device also comprises a first water supply tank and a second water supply tank;
a first liquid level switch is arranged in the first water supply tank, and a second liquid level switch is arranged in the second water supply tank; the first water supply tank is positioned above the second water supply tank, and the first water supply tank is communicated with the second water supply tank; the second water supply tank is communicated with the first heat exchange space, and the highest liquid level of the second water supply tank is lower than the air inlet of the steam channel;
the air inlet is communicated with the first heat exchange space.
CN202223448990.4U 2022-12-22 2022-12-22 Waste heat utilization environment-friendly device Active CN219177735U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223448990.4U CN219177735U (en) 2022-12-22 2022-12-22 Waste heat utilization environment-friendly device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223448990.4U CN219177735U (en) 2022-12-22 2022-12-22 Waste heat utilization environment-friendly device

Publications (1)

Publication Number Publication Date
CN219177735U true CN219177735U (en) 2023-06-13

Family

ID=86667846

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223448990.4U Active CN219177735U (en) 2022-12-22 2022-12-22 Waste heat utilization environment-friendly device

Country Status (1)

Country Link
CN (1) CN219177735U (en)

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