Flue gas waste heat recovery equipment for chemical production

Abstract

The utility model discloses flue gas waste heat recovery equipment for chemical production, which comprises a water storage tank, a support frame used for supporting and fixing the water storage tank, a recovery mechanism arranged outside the water storage tank and used for recycling heat in flue gas, and a stirring mechanism arranged in an inner cavity of the water storage tank. Smoke flows on the outer wall of the water storage tank through the conveying coil pipe, heat in the smoke is absorbed by the water storage tank shell, the heat conduction plate, the stirring block and the fixed block are driven by the movable rod to rotate together, and the heat conduction plate absorbs and conducts the heat in the water storage tank shell. And a fixing block drives cooling water at the bottom of the inner cavity of the water storage tank to move upwards together, the cooling water is diffused, heat of the water storage tank is absorbed, a stirring block stirs and mixes the cooling water in the inner cavity of the water storage tank, it is guaranteed that the temperature of the cooling water in the inner cavity of the water storage tank is uniform, and recovery of heat in smoke is improved.

Description

Technical Field

[0001] The utility model relates to the field of heat energy recovery, in particular to a flue gas waste heat recovery device for chemical production. Background Art

[0002] A large amount of waste gas is generated in industrial production. Usually, after the flue gas is purified to meet the emission standards, the flue gas is directly discharged to the outside, such as the patent number CN215654657U "A flue gas treatment equipment for chemical production".

[0003] The disadvantage of the above cooling device is that since the flue gas will absorb the heat generated by the reaction during the generation process, the flue gas will flow with a large amount of heat and be directly discharged to the outside. During the flow of the flue gas, the heat in the flue gas will gradually dissipate and decrease, and the heat in the flue gas cannot be utilized, resulting in a waste of heat energy. Utility Model Content

[0004] The purpose of the utility model is to provide a flue gas waste heat recovery device for chemical production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue gas waste heat recovery device for chemical production, comprising a water storage tank;

[0006] A support frame, which is fixedly connected with both ends of the water tank and is used to support and fix the water tank;

[0007] A recovery mechanism, which is arranged outside the water storage tank and is used to recover and utilize the heat in the flue gas;

[0008] The stirring mechanism is arranged in the inner cavity of the water storage tank and is used for stirring the cooling water in the inner cavity of the water storage tank.

[0009] Preferably, the recovery mechanism comprises:

[0010] A conveying coil, which is spirally arranged around the outside of the water storage tank and is used for conveying smoke;

[0011] An air pump, the air outlet of which is fixedly connected to one end of the conveying coil, is used to draw external smoke into the inner cavity of the conveying coil.

[0012] Preferably, the recovery mechanism comprises:

[0013] A feed pipe, the bottom of which is fixedly connected to the top of one end of the water tank, and is used to add cooling water into the inner cavity of the water tank;

[0014] A discharge pipe, the top of which is fixedly connected with the bottom of the other end of the water storage tank, and a control valve is fixedly installed on the discharge pipe.

[0015] Preferably, the stirring mechanism comprises:

[0016] A movable rod, the two ends of which are rotatably and interlacedly connected with the two ends of the inner wall of the water storage tank respectively;

[0017] A plurality of heat-conducting plates, which are fixedly connected to the outer wall of the movable rod in a ring array and are used to absorb and conduct heat on the water tank shell;

[0018] A fixing block, one end of which is fixedly connected to the top of the heat conducting plate and is arranged in an arc shape.

[0019] Preferably, the stirring mechanism comprises:

[0020] A plurality of stirring blocks, which are fixedly connected to the outer wall of the movable rod in a circular array and are used to stir the cooling water in the inner cavity of the water storage tank;

[0021] Gear one, the middle part of the gear one is fixedly inserted and connected with one end of the movable rod.

[0022] Preferably, the stirring mechanism comprises:

[0023] A driving motor, wherein the driving motor is arranged at one end of the water tank;

[0024] Gear 2, the middle part of which is transmission-connected to the output shaft of the driving motor, and meshingly connected to gear 1.

[0025] Technical effects and advantages of the utility model:

[0026] The utility model utilizes a configuration mode that cooperates with a conveying coil, a movable rod, a heat conducting plate, a fixed block and a stirring block. The smoke is flowed on the outer wall of a water tank through the conveying coil, and the water tank shell absorbs heat in the smoke. The movable rod is used to drive the heat conducting plate, the stirring block and the fixed block to rotate together, and the heat conducting plate absorbs and conducts heat from the water tank shell. The fixed block drives cooling water at the bottom of the inner cavity of the water tank to move upward together, diffuses the cooling water, and absorbs heat from the water tank shell, which is convenient for the cooling water to absorb the heat of the water tank shell. The stirring block stirs and mixes the cooling water in the inner cavity of the water tank, ensures that the temperature of the cooling water in the inner cavity of the water tank is uniform, improves the recovery of heat in the smoke, and reduces the waste of heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0028] Figure 2 It is a schematic diagram of the side sectional structure of the water storage tank of the utility model.

[0029] Figure 3 It is a front sectional structural schematic diagram of the water storage tank of the utility model.

[0030] Figure 4 It is a schematic diagram of the side structure of the stirring block of the utility model.

[0031] In the figure: 1. water storage tank; 2. support frame; 3. recovery mechanism; 31. conveying coil; 32. air pump; 33. feed pipe; 34. discharge pipe; 4. stirring mechanism; 41. movable rod; 42. heat conduction plate; 43. fixed block; 44. stirring block; 45. gear one; 46. drive motor; 47. gear two. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The utility model provides Figure 1-4 The device for recovering waste heat from flue gas used in chemical production shown in the figure comprises a water tank 1, which is arranged in a cylindrical shape, and absorbs heat in the flue gas by adding cooling water into the inner cavity of the water tank 1, and a support frame 2, which is fixedly connected with both ends of the water tank 1 and is used to support and fix the water tank 1;

[0034] The recovery mechanism 3 is arranged outside the water storage tank 1 and is used to recover the heat in the flue gas. The heat of the flue gas is absorbed by the recovery mechanism 3 and the heat is recovered;

[0035] A stirring mechanism 4 is provided in the inner cavity of the water storage tank 1, and is used to stir the cooling water in the inner cavity of the water storage tank 1. The stirring mechanism 4 stirs the cooling water in the inner cavity of the water storage tank 1, and diffuses the cooling water into the water storage tank 1, so as to absorb the heat on the top of the outer shell of the water storage tank 1 and improve the heat dissipation effect;

[0036] The recovery mechanism 3 includes a conveying coil 31, which is spirally arranged on the outside of the water tank 1 and is used to convey cooling water. The inner wall of the conveying coil 31 fits the outer wall of the water tank 1. The outer wall of the water tank 1 is made of a heat-conducting metal material. The smoke flows in the inner cavity of the conveying coil 31, so that the smoke flows along the outer wall of the water tank 1, and the heat in the smoke is transferred to the inside of the water tank 1. The air pump 32 is electrically connected to the external power supply through an external first switch, and the air outlet of the air pump 32 is fixedly connected to one end of the conveying coil 31, which is used to absorb external smoke into the inner cavity of the conveying coil 31. The air inlet of the air pump 32 is connected to the external pipeline, and the air outlet of the air pump 32 is connected to the conveying coil. The pipe 31 is fixedly connected, and the smoke enters the air pump 32 from the air inlet. After being transmitted by the air pump 32, the smoke is discharged from the air outlet and enters the inner cavity of the conveying coil 31. It is fixedly connected to the other end of the conveying coil 31 through an external pipeline, so that the smoke flows in the inner cavity of the conveying coil 31. The feed pipe 33, the bottom of the feed pipe 33 is fixedly connected with the top of one end of the water storage tank 1 through insertion, and is used to add cooling water to the inner cavity of the water storage tank 1. The discharge pipe 34, the top of the discharge pipe 34 is fixedly connected with the bottom of the other end of the water storage tank 1 through insertion, and a control valve is fixedly installed on it. The control valve is used to control the on-off of the discharge pipe 34. By opening the control valve, the cooling water in the inner cavity of the water storage tank 1 is discharged from the discharge pipe 34;

[0037] The stirring mechanism 4 includes a movable rod 41, the two ends of the movable rod 41 are respectively connected to the two ends of the inner wall of the water storage tank 1 by rotation and insertion, the movable rod 41 is used to install the heat conducting plate 42 and the stirring block 44, drive the heat conducting plate 42 and the stirring block 44 to rotate in the inner cavity of the water storage tank 1, multiple heat conducting plates 42, multiple heat conducting plates 42 are fixedly connected to the outer wall of the movable rod 41 in a ring array, and are used to absorb and conduct heat on the shell of the water storage tank 1. The multiple heat conducting plates 42 rotate with the movable rod 41, and are used to install the fixed block 43 to the shell of the water storage tank 1. Heat is conducted and contacts with the cooling water in the inner cavity of the water storage tank 1 to dissipate the heat. The fixed block 43 has one end fixedly connected to the top of the heat conducting plate 42 and is arranged in an arc shape. The fixed block 43 rotates with the heat conducting plate 42 to drive the cooling water at the bottom of the inner cavity of the water storage tank 1 to move upward to diffuse the cooling water. The fixed block 43 is made of a heat conducting material, and the outer wall fits with the inner wall of the water storage tank 1 to absorb and conduct the heat on the shell of the water storage tank 1. A plurality of stirring blocks 44, a plurality of stirring blocks 44 The stirring blocks 44 are arranged in a circular array and fixedly connected to the outer wall of the movable rod 41, and are used to stir the cooling water in the inner cavity of the water storage tank 1. The stirring blocks 44 are arranged in a wave shape, which increases the contact area between the stirring blocks 44 and the cooling water, stirs and mixes the cooling water in the inner cavity of the water storage tank 1, ensures that the temperature of the cooling water in the inner cavity of the water storage tank 1 is uniform, and is convenient for absorbing heat. The stirring blocks 44 rotate together with the movable rod 41, and the gear 45, the middle part of the gear 45 is fixedly connected with one end of the movable rod 41, and the gear 45 is used to drive the movable rod 41 to rotate. , drive motor 46, drive motor 46 is electrically connected to the external power supply through an external second switch, drive motor 46 is arranged at one end of water tank 1, and is used to drive gear 2 47 to rotate, gear 2 47, the middle part of gear 2 47 is transmission connected with the output end of drive motor 46, and it is meshingly connected with gear 1 45, and through the operation of drive motor 46, gear 2 47 is driven to rotate, and the meshing action of gear 1 45 and gear 2 47 is utilized to drive movable rod 41, heat conducting plate 42, stirring block 44 and fixed block 43 to rotate together.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A flue gas waste heat recovery device for chemical production, comprising: Water storage tank (1); A support frame (2), the support frame (2) being fixedly connected to both ends of the water tank (1) by insertion, and being used to support and fix the water tank (1); The invention is characterized in that: a recovery mechanism (3) is arranged outside the water storage tank (1) and is used to recover and utilize the heat in the flue gas; A stirring mechanism (4), wherein the stirring mechanism (4) is arranged in the inner cavity of the water storage tank (1), and is used to stir the cooling water in the inner cavity of the water storage tank (1).

2. The chemical production flue gas waste heat recovery equipment according to claim 1, characterized in that: The recovery mechanism (3) comprises: A conveying coil (31), the conveying coil (31) is spirally arranged on the outside of the water storage tank (1) and is used for conveying smoke; An air pump (32), the air outlet of which is fixedly connected to one end of the conveying coil (31), and is used to draw external smoke into the inner cavity of the conveying coil (31).

3. The chemical production flue gas waste heat recovery equipment according to claim 2, characterized in that: The recovery mechanism (3) comprises: A feed pipe (33), the bottom of which is fixedly connected to the top of one end of the water storage tank (1) and is used to add cooling water into the inner cavity of the water storage tank (1); A discharge pipe (34), the top of which is fixedly connected to the bottom of the other end of the water storage tank (1) through insertion, and a control valve is fixedly mounted on the discharge pipe (34).

4. The chemical production flue gas waste heat recovery equipment according to claim 3, characterized in that: The stirring mechanism (4) comprises: A movable rod (41), the two ends of which are respectively rotatably connected to the two ends of the inner wall of the water storage tank (1); A plurality of heat-conducting plates (42), the plurality of heat-conducting plates (42) being arranged in a ring array and fixedly connected to the outer wall of the movable rod (41), and being used to absorb and conduct heat on the shell of the water storage tank (1); A fixed block (43), one end of which is fixedly connected to the top of the heat conducting plate (42) and is arranged in an arc shape.

5. The chemical production flue gas waste heat recovery equipment according to claim 4, characterized in that: The stirring mechanism (4) comprises: A plurality of stirring blocks (44), wherein the plurality of stirring blocks (44) are arranged in a ring array and fixedly connected to the outer wall of the movable rod (41), and are used to stir the cooling water in the inner cavity of the water storage tank (1); Gear one (45), the middle part of which is fixedly interlaced with one end of the movable rod (41).

6. The chemical production flue gas waste heat recovery equipment according to claim 5, characterized in that: The stirring mechanism (4) comprises: A driving motor (46), wherein the driving motor (46) is arranged at one end of the water storage tank (1); Gear 2 (47), the middle part of which is transmission-connected to the output end of the driving motor (46), and which is meshingly connected to gear 1 (45).

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