Industrial waste gas waste heat recycling device
By designing heat exchange plates and connecting pipe structures in the industrial waste gas waste heat recovery and utilization device, the problem of unutilized waste heat from waste gas is solved, the effect of heating the cold air to heating is achieved, and the waste heat is reused.
Patent Information
- Application Number
- CN202422088231.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-08-28
AI Technical Summary
In the existing technology, the high temperature characteristics of industrial waste gas have not been effectively utilized, resulting in waste heat resources and the inability to replace heating equipment.
An industrial waste gas waste heat recovery and utilization device is designed, which adopts a heat exchange plate structure in the waste heat recovery and utilization box. The waste gas flows through the heat exchange plate through the first and second waste gas connecting pipes, and is combined with the partition plate and the barrier block to achieve the heating of the cold air.
Effectively recover the waste heat of exhaust gas, heat up the cold air into heating, replace the traditional heater, and realize the reuse of waste heat.
Smart Images
Figure CN223361163U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of industrial waste gas waste heat recovery, in particular to an industrial waste gas waste heat recovery and utilization device. Background Art
[0002] Waste gas refers to toxic and harmful gases emitted by humans in the production and life processes, especially from chemical plants, steel mills, pharmaceutical plants, coking plants and oil refineries.
[0003] Nowadays, many factories directly recycle and purify the waste gas they produce and then discharge it. However, some waste gases have high temperatures. If their high temperature characteristics can be utilized, they can effectively replace some heating equipment, so that the waste heat of the waste gas can be recovered and reused. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an industrial waste gas waste heat recovery and utilization device.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] An industrial waste gas waste heat recovery and utilization device includes a waste heat recovery box, an air inlet pipe and an air outlet pipe being symmetrically arranged on the upper portion of a side wall of one side of the waste heat recovery box body, a first waste gas connecting pipe being connected to the bottom of the side wall of the waste heat recovery box adjacent to the side where the air inlet pipe is arranged, and a plurality of heat exchange plates are evenly arranged in a transverse direction in an inner cavity of the waste heat recovery box, and the heat exchange plates are connected to the first waste gas connecting pipe;
[0007] A plurality of exhaust ports are arranged evenly in the transverse direction on the wall of the first exhaust gas connecting pipe, and the exhaust ports are connected to the inner cavity of the first exhaust gas connecting pipe. A plurality of barrier disks are arranged in the transverse direction on the inner cavity of the first exhaust gas connecting pipe, and the barrier disks are respectively arranged between the first exhaust port and the second exhaust port close to the connecting port, between the third exhaust port and the fourth exhaust port, and between the fifth exhaust port and the sixth exhaust port.
[0008] In addition, the preferred structure is that a partition plate is provided in the middle of the inner cavity of the waste heat recovery box and in the middle of the heat exchange plate. The waste heat recovery box is divided into two chambers by the partition plate, and a connection port is provided at a corner of the partition plate.
[0009] In addition, the preferred structure is that the inner cavity of the waste heat recovery box is located at the top or bottom of the plate body of the heat exchange plate and is provided with a blocking block. The blocking block is arranged on the top of the first heat exchange plate, the third heat exchange plate, the fifth heat exchange plate, and the seventh heat exchange plate close to the air intake pipe, and the blocking block is arranged on the bottom of the second heat exchange plate, the fourth heat exchange plate, and the sixth heat exchange plate close to the air intake pipe.
[0010] In addition, a preferred structure is that the air inlet pipe is connected to the chamber on one side of the waste heat recovery box separated by the partition plate, and the air outlet pipe is connected to the chamber on the other side of the waste heat recovery box separated by the partition plate.
[0011] In addition, the preferred structure is that a second exhaust gas connecting pipe is provided on the top of the side wall of the waste heat recovery and utilization box away from the other side where the first exhaust gas connecting pipe is provided, the connection port of the second exhaust gas pipe is in the opposite direction to the connection port of the first exhaust gas connecting pipe, and the structure of the second exhaust gas pipe is consistent with that of the first exhaust gas connecting pipe, and the second exhaust gas pipe is connected to the heat exchange plate.
[0012] In addition, a preferred structure is that a cavity is opened in the heat exchange plate, a first gas supply channel is connected to the bottom of one side of the heat exchange plate body, and a second gas supply channel is connected to the top of the other side of the heat exchange plate body away from the first gas supply channel. The first gas supply channel is connected to the first exhaust gas connecting pipe, and the second gas supply channel is connected to the second exhaust gas connecting pipe.
[0013] The beneficial effects of the present invention are as follows: by arranging multiple heat exchange plates in the waste heat recovery box, and by arranging a first exhaust gas connecting pipe and a second exhaust gas connecting pipe on both sides, the exhaust gas can flow through each heat exchange plate, so that the cold air input into the waste heat recovery box can be effectively heated up into warm air, and the partition plates and barrier blocks arranged can effectively increase the flow of the cold air flow, so that the cold air can be better heated up, and the waste heat energy of industrial waste gas can be recovered and utilized, thereby replacing the heater and converting the cold air into the heating required by the factory. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the waste heat recovery box;
[0015] Figure 2 This is a schematic diagram of the structure inside the waste heat recovery box;
[0016] Figure 3 It is a structural diagram of the heat exchange plate connected to the first exhaust gas connecting pipe and the second exhaust gas connecting pipe on both sides;
[0017] Figure 4 is a schematic structural diagram of the first exhaust gas connecting pipe;
[0018] Figure 5 Schematic diagram of the internal structure of the heat exchange plate.
[0019] In the figure: 1 waste heat recovery box, 11 partition plate, 111 connection port, 12 barrier block, 2 first exhaust gas connecting pipe, 21 exhaust port, 22 barrier plate, 3 air inlet pipe, 4 air outlet pipe, 5 heat exchange plate, 51 first gas transmission channel, 52 second gas transmission channel, 6 second exhaust gas connecting pipe. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0021] Reference Figure 1-5 A device for recovering and utilizing waste heat from industrial waste gas comprises a waste heat recovery box 1. An air inlet pipe 3 and an air outlet pipe 4 are symmetrically arranged on the upper part of the side wall of one side of the waste heat recovery box 1. The waste heat recovery box 1 is located at the bottom of the side wall adjacent to the side where the air inlet pipe 3 is arranged, and is connected to a first waste gas connecting pipe 2. A plurality of heat exchange plates 5 are evenly arranged in the transverse direction on the inner cavity of the waste heat recovery box 1, and the heat exchange plates 5 are connected to the first waste gas connecting pipe 2.
[0022] Among them, a plurality of exhaust ports 21 are arranged uniformly in the horizontal direction on the wall of the first exhaust gas connecting pipe 2, and the exhaust ports 21 are connected to the inner cavity of the first exhaust gas connecting pipe 2. A plurality of barrier disks 22 are arranged in the horizontal direction on the inner cavity of the first exhaust gas connecting pipe 2. The barrier disks 22 are respectively arranged between the first exhaust port 21 and the second exhaust port 21 close to the connection port, between the third exhaust port 21 and the fourth exhaust port 21, and between the fifth exhaust port 21 and the sixth exhaust port 21. The exhaust ports 21 facilitate the input of exhaust gas into the waste heat recovery box 1.
[0023] In addition, a partition plate 11 is provided in the middle of the inner cavity of the waste heat recovery box 1 and in the middle of the heat exchange plate 5. The waste heat recovery box 1 is divided into two chambers by the partition plate 11, and a connecting port 111 is provided at a corner of the partition plate 11. The connecting port 111 facilitates communication between the chambers on both sides.
[0024] Among them, the inner cavity of the waste heat recovery box 1 is located at the top or bottom of the plate body of the heat exchange plate 5 and is provided with a blocking block 12. The blocking block 12 is arranged on the top of the first heat exchange plate 5, the third heat exchange plate 5, the fifth heat exchange plate 5, and the seventh heat exchange plate 5 close to the air intake pipe 3. The blocking block 12 is arranged on the bottom of the second heat exchange plate 5, the fourth heat exchange plate 5, and the sixth heat exchange plate 5 close to the air intake pipe 3. The blocking block 12 can block the gap between the heat exchange plate 5 at the top or bottom of the inner cavity of the waste heat recovery box 1.
[0025] Moreover, the air inlet pipe 3 is connected to the chamber on one side of the waste heat recovery box 1 separated by the partition plate 11, and the air outlet pipe 4 is connected to the chamber on the other side of the waste heat recovery box 1 separated by the partition plate 11. This can increase the flow of the incoming cold air, so that it can be better converted into heating.
[0026] Among them, a second exhaust gas connecting pipe 6 is provided on the top of the side wall of the waste heat recovery and utilization box 1 away from the other side where the first exhaust gas connecting pipe 2 is provided. The connection port of the second exhaust gas pipe 6 is in the opposite direction to the connection port of the first exhaust gas connecting pipe 2, and the structure of the second exhaust gas pipe 6 is consistent with that of the first exhaust gas connecting pipe 2. The second exhaust gas pipe 6 is connected to the heat exchange plate 5, and the second exhaust gas pipe 6 is used to discharge exhaust gas.
[0027] Moreover, a cavity is opened in the heat exchange plate 5, and a first gas supply channel 51 is connected to the bottom of one side of the heat exchange plate 5, and a second gas supply channel 52 is connected to the top of the other side of the heat exchange plate 5 away from the first gas supply channel 51. The first gas supply channel 51 is connected to the first exhaust gas connecting pipe 2, and the second gas supply channel 52 is connected to the second exhaust gas connecting pipe 6. The heat exchange plate 5 facilitates heat exchange of the exhaust gas.
[0028] In this embodiment, the first exhaust gas connecting pipe 2 is connected to the exhaust gas input pipe, and the high-temperature exhaust gas is input into the first exhaust gas connecting pipe 2. The exhaust gas is first blocked by the first baffle plate 22, and then the first exhaust port 21 is input into the cavity of the heat exchange plate 5 through the first gas delivery channel 51, so that it fills the cavity of the heat exchange plate 5, and then output from the second gas delivery channel 52 to the second exhaust gas connecting pipe 6, and then under the action of the baffle plate 22 in the second exhaust gas pipe 6, it flows back into the second heat exchange plate 5. In this way, the exhaust gas flows through each subsequent heat exchange plate 5, and then from In the second exhaust gas connecting pipe 6, the temperature of each heat exchange plate 5 is higher, and then cold air is input from the air inlet pipe 3. The input cold air will be subject to the suction force of the air outlet pipe 4, and a barrier block 12 is provided above the first heat exchange plate 5, so that the cold air can only pass through from the bottom, and then pass from the top of the second heat exchange plate 5, and finally enter the chamber on the other side from the connecting port 111, and then be extracted from the air outlet pipe 4. In this process, when the cold air passes through each heat exchange plate 5, the cold air can be effectively heated up, so that the output of the air outlet pipe 4 is warm air.
[0029] In the present invention, a plurality of heat exchange plates 5 are arranged in the waste heat recovery box 1, and a first exhaust gas connecting pipe 2 and a second exhaust gas connecting pipe 6 are arranged on both sides, so that the exhaust gas can flow through each heat exchange plate 5, so that the cold air input into the waste heat recovery box 1 can be effectively heated up into warm air, and the partition plate 11 and the barrier block 12 can be effectively increased when the cold air flows, so that the cold air can be better heated up, so that the waste heat energy of industrial waste gas can be recovered and utilized, thereby replacing the heater and converting the cold air into the heating required by the factory.
[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An industrial waste gas waste heat recovery device, comprising a waste heat recovery box (1), characterized in that: An air inlet pipe (3) and an air outlet pipe (4) are symmetrically arranged on the upper portion of the side wall of one side of the waste heat recovery box (1); a first exhaust gas connecting pipe (2) is connected to the bottom of the side wall of the waste heat recovery box (1) adjacent to the side where the air inlet pipe (3) is arranged; a plurality of heat exchange plates (5) are evenly arranged in a transverse direction in the inner cavity of the waste heat recovery box (1); the heat exchange plates (5) are connected to the first exhaust gas connecting pipe (2); A plurality of exhaust ports (21) are uniformly arranged in a transverse direction on the wall of the first exhaust gas connecting pipe (2), the exhaust ports (21) are communicated with the inner cavity of the first exhaust gas connecting pipe (2), and a plurality of blocking discs (22) are arranged in a transverse direction on the inner cavity of the first exhaust gas connecting pipe (2), the blocking discs (22) are respectively arranged between the first exhaust port (21) and the second exhaust port (21) close to the connecting port, between the third exhaust port (21) and the fourth exhaust port (21), and between the fifth exhaust port (21) and the sixth exhaust port (21).
2. The industrial waste gas waste heat recovery and utilization device according to claim 1, characterized in that: A partition plate (11) is provided in the middle of the inner cavity of the waste heat recovery box (1) and in the middle of the heat exchange plate (5). The waste heat recovery box (1) is divided into two chambers by the partition plate (11), and a connection port (111) is provided at a corner of the partition plate (11).
3. The industrial waste gas waste heat recovery and utilization device according to claim 2, characterized in that: The inner cavity of the waste heat recovery box (1) is located at the top or bottom of the plate body of the heat exchange plate (5), and a barrier block (12) is provided. The barrier block (12) is provided on the top of the first heat exchange plate (5), the third heat exchange plate (5), the fifth heat exchange plate (5), and the seventh heat exchange plate (5) close to the air inlet pipe (3), and the barrier block (12) is provided on the bottom of the second heat exchange plate (5), the fourth heat exchange plate (5), and the sixth heat exchange plate (5) close to the air inlet pipe (3).
4. The industrial waste gas waste heat recovery and utilization device according to claim 3, characterized in that: The air inlet pipe (3) is in communication with a chamber on one side of the waste heat recovery box (1) separated by the partition plate (11), and the air outlet pipe (4) is in communication with a chamber on the other side of the waste heat recovery box (1) separated by the partition plate (11).
5. The industrial waste gas waste heat recovery and utilization device according to claim 1, characterized in that: A second exhaust gas connecting pipe (6) is provided on the top of the side wall of the waste heat recovery box (1) away from the side where the first exhaust gas connecting pipe (2) is provided. The connection port of the second exhaust gas pipe (6) is in the opposite direction to the connection port of the first exhaust gas connecting pipe (2), and the structure of the second exhaust gas pipe (6) is consistent with that of the first exhaust gas connecting pipe (2). The second exhaust gas pipe (6) is connected to the heat exchange plate (5).
6. The industrial waste gas waste heat recovery and utilization device according to claim 2, characterized in that: A cavity is provided in the heat exchange plate (5); a first gas supply channel (51) is connected to the bottom of one side of the heat exchange plate (5); a second gas supply channel (52) is connected to the top of the other side of the heat exchange plate (5) away from the first gas supply channel (51); the first gas supply channel (51) is connected to the first exhaust gas connecting pipe (2), and the second gas supply channel (52) is connected to the second exhaust gas connecting pipe (6).