Carbon calcining furnace flue gas waste heat recovery device

Abstract

The utility model discloses a carbon calcining furnace flue gas waste heat recovery device, which relates to the technical field of waste heat recovery, and comprises two groups of saddle type supports arranged in parallel, a heat exchange tank is fixedly connected above the two saddle type supports, a first connecting flange is arranged on the right side of the heat exchange tank, and a second connecting flange is arranged on the right side of the first connecting flange. A flow speed control assembly is fixedly installed on the right side of the heat exchange tank through a first connecting flange, a heat exchange assembly is arranged in the heat exchange tank, a second connecting flange is fixedly connected to the left side of the heat exchange tank, and a flow dividing assembly is fixedly installed on the left side of the heat exchange tank through a second connecting flange. The leftmost side of the top of the heat exchange tank is fixedly connected with a smoke outlet pipe, and the rightmost side of the bottom of the heat exchange tank is fixedly connected with a smoke inlet pipe. The system has the advantages that waste heat of high-temperature flue gas is effectively utilized and converted into heat energy, so that recycling of energy is achieved, energy consumption can be reduced, the overall energy utilization efficiency can be improved, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a carbon calcining furnace flue gas waste heat recovery device. Background Art

[0002] Carbon calcining furnace is a heat treatment equipment for carbon materials, which is mainly used to heat treat carbon materials in an air-tight environment. The main function of heat treatment is to make the moisture and volatiles in the carbon materials escape, and produce changes such as volume shrinkage and true density increase, so that the carbon materials can obtain better electrical and thermal conductivity, as well as anti-oxidation and anti-corrosion capabilities.

[0003] A carbon calcining furnace will generate a large amount of high-temperature flue gas during the production process. The flue gas contains rich heat. This part of the heat is usually discharged into the environment as waste heat through air cooling or water cooling, resulting in a huge waste of energy. The high-temperature flue gas is directly discharged into the atmosphere, which not only increases the heat in the atmosphere, but also may contain harmful substances, causing pollution to the environment. In view of the above problems, a carbon calcining furnace flue gas waste heat recovery device is proposed to solve them. Utility Model Content

[0004] In order to solve the above technical problems, a carbon calcining furnace flue gas waste heat recovery device is provided, which solves the problem that the current carbon calcining furnace will generate a large amount of high-temperature flue gas during the production process. The flue gas contains rich heat. This part of heat is usually used as waste heat and then discharged into the environment in the form of air cooling or water cooling, resulting in a huge waste of energy. The high-temperature flue gas is directly discharged into the atmosphere, which not only increases the heat in the atmosphere, but also may contain harmful substances, causing pollution to the environment.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a carbon calcining furnace flue gas waste heat recovery device, comprising two groups of parallel arranged saddle supports, a heat exchange tank is fixedly connected above the two saddle supports, a first connecting flange is arranged on the right side of the heat exchange tank, a flow rate control component is fixedly installed on the right side of the heat exchange tank through the first connecting flange, a heat exchange component is arranged inside the heat exchange tank, a second connecting flange is fixedly connected to the left side of the heat exchange tank, a diversion component is fixedly installed on the left side of the heat exchange tank through the second connecting flange, a flue gas outlet pipe is fixedly connected to the leftmost side of the top of the heat exchange tank, and a flue gas inlet pipe is fixedly connected to the rightmost side of the bottom of the heat exchange tank.

[0006] Preferably, first lifting ears are fixedly connected to the left and right sides of the top of the heat exchange tank, and a pressure gauge seat, an electric contact water level gauge interface and a balance container interface are arranged in sequence from left to right between the top of the heat exchange tank and the two first lifting ears.

[0007] Preferably, the flow rate control assembly includes a sealing cover, which is fixedly connected to the first connecting flange via anti-loosening bolts, a servo motor is fixedly installed on the right side of the sealing cover, and the output end of the servo motor passes through the sealing cover and is fixedly connected to the inside of the heat exchange tank with a fan blade.

[0008] Preferably, the heat exchange assembly includes a connecting plate, which is fixedly connected to the second connecting flange by anti-loosening bolts, and an obliquely arranged sealing groove is opened in the middle of the surface of the connecting plate. A plurality of heat exchange tubes are fixedly connected to the right side of the connecting plate, and the heat exchange tubes are U-shaped.

[0009] Preferably, at least four first baffles are fixedly connected at the upper ends of several of the heat exchange tubes, and at least three second baffles are fixedly connected at the lower ends of several of the heat exchange tubes, and the first baffles are arranged at intervals from the second baffles.

[0010] Preferably, the diversion assembly includes a water inlet hood, which is fixedly connected to the connecting plate by bolts, and a partition plate adapted to the sealing groove is fixedly connected inside the water inlet hood, and the partition plate is plugged into the sealing groove, and a second lifting ear is fixedly connected to the left side of the top of the water inlet hood.

[0011] Preferably, a hot water outlet pipe is fixedly connected to the right side of the top of the water inlet cover, and a cold water inlet pipe is fixedly connected to the right side of the bottom of the water inlet cover.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] 1. The utility model separates cold water and hot water by setting a diversion component, thereby reducing the amount of pipes used and reducing the footprint of the waste heat recovery device. The reduction in footprint usually means a reduction in infrastructure, thereby reducing construction costs, which means that land resources can be used more effectively and land costs can be reduced.

[0014] 2. The utility model heats cold water into usable hot water by setting up a heat exchange component, effectively utilizing the waste heat of high-temperature flue gas and converting it into thermal energy, thereby realizing energy recycling. This not only reduces energy consumption, but also helps to improve the overall energy utilization efficiency. Transferring the heat in the high-temperature flue gas to cold water can improve the energy utilization efficiency of the entire system, improve energy utilization efficiency and reduce energy consumption.

[0015] 3. The utility model controls the flue gas flow rate inside the heat exchange tank by setting a flow rate control component. The increase in the flue gas flow rate will increase the heat transfer area between the flue gas and the pipe or the wall of the heat exchanger, thereby increasing the surface area of ​​heat transfer and improving the heat transfer efficiency. By controlling the flue gas flow rate, it is possible to reduce energy consumption and extend the service life of the equipment while ensuring the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the flow rate control component in the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the heat exchange component in the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the diversion component in the utility model.

[0021] The numbers in the figure are:

[0022] 1. Saddle support; 2. Heat exchange tank; 3. First lifting ear; 4. First connecting flange; 5. Flow rate control assembly; 501. Sealing cover; 502. Servo motor; 503. Fan blade; 6. Second connecting flange; 7. Diverter assembly; 701. Water inlet cover; 702. Second lifting ear; 703. Hot water outlet pipe; 704. Cold water inlet pipe; 705. Partition plate; 8. Heat exchange assembly; 801. Connecting plate; 802. Heat exchange tube; 803. Sealing groove; 804. First baffle plate; 805. Second baffle plate; 9. Pressure gauge seat; 10. Electric contact water level gauge interface; 11. Balance container interface; 12. Smoke inlet pipe; 13. Smoke outlet pipe. DETAILED DESCRIPTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0024] Reference Figure 1-5 As shown, a carbon calcining furnace flue gas waste heat recovery device includes two groups of parallel arranged saddle supports 1, a heat exchange tank 2 is fixedly connected above the two saddle supports 1, a first connecting flange 4 is arranged on the right side of the heat exchange tank 2, a flow rate control component 5 is fixedly installed on the right side of the heat exchange tank 2 through the first connecting flange 4, a heat exchange component 8 is arranged inside the heat exchange tank 2, a second connecting flange 6 is fixedly connected to the left side of the heat exchange tank 2, a diversion component 7 is fixedly installed on the left side of the heat exchange tank 2 through the second connecting flange 6, a flue gas outlet pipe 13 is fixedly connected to the leftmost side of the top of the heat exchange tank 2, and a flue gas inlet pipe 12 is fixedly connected to the rightmost side of the bottom of the heat exchange tank 2.

[0025] Specifically, the left and right sides of the top of the heat exchange tank 2 are fixedly connected with the first lifting ears 3, and the pressure gauge seat 9, the electric contact water level gauge interface 10 and the balance container interface 11 are arranged from left to right between the top of the heat exchange tank 2 and the two first lifting ears 3. The arrangement of the pressure gauge seat 9, the electric contact water level gauge interface 10 and the balance container interface 11 facilitates real-time monitoring and control of the working status inside the heat exchange tank 2.

[0026] Furthermore, the flow rate control assembly 5 includes a sealing cover 501, which is fixedly connected to the first connection flange 4 by anti-loosening bolts, and a servo motor 502 is fixedly installed on the right side of the sealing cover 501. The output end of the servo motor 502 passes through the sealing cover 501 and is fixedly connected to the inside of the heat exchange tank 2 with a fan blade 503. Through the precise control of the servo motor 502, the fan blade 503 can adjust the flow rate of the flue gas inside the heat exchange tank 2, thereby optimizing the heat exchange efficiency. This design can adjust the heat exchange speed according to actual needs to achieve more efficient and flexible heat energy recovery.

[0027] Preferably, the heat exchange assembly 8 includes a connecting plate 801, which is fixedly connected to the second connecting flange 6 by anti-loosening bolts, and a sealing groove 803 arranged obliquely is provided in the middle of the surface of the connecting plate 801. A plurality of heat exchange tubes 802 are fixedly connected to the right side of the connecting plate 801. The heat exchange tubes 802 are U-shaped, and the hot water outlet is above the heat exchange tubes 802 and the partition plate 705, and the cold water inlet is below the heat exchange tubes 802 and the partition plate 705. The U-shaped structure design increases the contact area between the flue gas and the water, and improves the heat exchange efficiency. At the same time, the U-shaped structure also helps to prevent impurities such as scale from accumulating on the tube wall, thereby extending the service life of the equipment.

[0028] It is worth noting that at least four first baffles 804 are fixedly connected to the upper ends of the heat exchange tubes 802, and at least three second baffles 805 are fixedly connected to the lower ends of the heat exchange tubes 802. The first baffles 804 and the second baffles 805 are arranged at intervals. The interval arrangement of the first baffles 804 and the second baffles 805 can guide the flue gas to form turbulence outside the heat exchange tubes 802, further enhancing the heat exchange effect. At the same time, the baffles can also support the heat exchange tubes 802 to prevent them from being deformed or damaged due to the impact of water flow.

[0029] Specifically, the diversion assembly 7 includes a water inlet hood 701, which is fixedly connected to the connecting plate 801 by bolts, and a partition plate 705 adapted to the sealing groove 803 is fixedly connected inside the water inlet hood 701, and the partition plate 705 is plugged into the sealing groove 803. A second lifting ear 702 is fixedly connected to the left side of the top of the water inlet hood 701. The setting of the first lifting ear 3 and the second lifting ear 702 facilitates the lifting and transportation of the heat exchange tank 2.

[0030] Specifically, a hot water outlet pipe 703 is fixedly connected to the right side of the top of the water inlet cover 701 , and a cold water inlet pipe 704 is fixedly connected to the right side of the bottom of the water inlet cover 701 .

[0031] Working principle: When in use, first connect the smoke inlet pipe 12, the smoke outlet pipe 13, the hot water outlet pipe 703 and the cold water inlet pipe 704 to the corresponding pipes, and the high-temperature smoke enters from the smoke inlet pipe 12. At this time, the output end of the servo motor 502 drives the fan blade 503 to rotate, thereby blowing the smoke from the right to the left. Under the action of the first baffle 804 and the second baffle 805, the smoke will be in an S shape and contact the heat exchange tube 802. At this time, cold water enters from the cold water inlet pipe 704 and is blocked by the partition plate 705. The cold water enters the inside of the heat exchange tube 802 and exchanges heat with the high-temperature smoke. After the heat exchange, the temperature of the cold water increases and flows out from the other end of the heat exchange tube 802, and then flows into the place where heating is required from the hot water outlet pipe 703.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A carbon calcining furnace flue gas waste heat recovery device, characterized in that: The invention comprises two groups of saddle supports (1) arranged in parallel, a heat exchange tank (2) being fixedly connected above the two saddle supports (1), a first connecting flange (4) being arranged on the right side of the heat exchange tank (2), a flow rate control component (5) being fixedly installed on the right side of the heat exchange tank (2) through the first connecting flange (4), a heat exchange component (8) being arranged inside the heat exchange tank (2), a second connecting flange (6) being fixedly connected on the left side of the heat exchange tank (2), a flow diversion component (7) being fixedly installed on the left side of the heat exchange tank (2) through the second connecting flange (6), a smoke outlet pipe (13) being fixedly connected on the leftmost side of the top of the heat exchange tank (2), and a smoke inlet pipe (12) being fixedly connected on the rightmost side of the bottom of the heat exchange tank (2).

2. A carbon calcining furnace flue gas waste heat recovery device according to claim 1, characterized in that: The left and right sides of the top of the heat exchange tank (2) are fixedly connected to first lifting ears (3), and a pressure gauge seat (9), an electric contact water level gauge interface (10) and a balance container interface (11) are arranged in sequence from left to right between the top of the heat exchange tank (2) and the two first lifting ears (3).

3. The carbon calcining furnace flue gas waste heat recovery device according to claim 1, characterized in that: The flow rate control assembly (5) comprises a sealing cover (501), wherein the sealing cover (501) is fixedly connected to the first connecting flange (4) via anti-loosening bolts, a servo motor (502) is fixedly installed on the right side of the sealing cover (501), and an output end of the servo motor (502) passes through the sealing cover (501) and is fixedly connected to a fan blade (503) inside the heat exchange tank (2).

4. The carbon calcining furnace flue gas waste heat recovery device according to claim 1, characterized in that: The heat exchange assembly (8) comprises a connecting plate (801), wherein the connecting plate (801) is fixedly connected to the second connecting flange (6) via anti-loosening bolts, an obliquely arranged sealing groove (803) is provided in the middle of the surface of the connecting plate (801), and a plurality of heat exchange tubes (802) are fixedly connected to the right side of the connecting plate (801), wherein the heat exchange tubes (802) are U-shaped.

5. A carbon calcining furnace flue gas waste heat recovery device according to claim 4, characterized in that: At least four first baffles (804) are fixedly connected at the upper ends of the plurality of heat exchange tubes (802), and at least three second baffles (805) are fixedly connected at the lower ends of the plurality of heat exchange tubes (802), and the first baffles (804) and the second baffles (805) are arranged at intervals.

6. The carbon calcining furnace flue gas waste heat recovery device according to claim 1, characterized in that: The diversion assembly (7) comprises a water inlet cover (701), wherein the water inlet cover (701) is fixedly connected to a connecting plate (801) via bolts, a partition plate (705) adapted to the sealing groove (803) is fixedly connected inside the water inlet cover (701), the partition plate (705) is plugged into the inside of the sealing groove (803), and a second lifting ear (702) is fixedly connected to the left side of the top of the water inlet cover (701).

7. A carbon calcining furnace flue gas waste heat recovery device according to claim 6, characterized in that: A hot water outlet pipe (703) is fixedly connected to the right side of the top of the water inlet cover (701), and a cold water inlet pipe (704) is fixedly connected to the right side of the bottom of the water inlet cover (701).

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