A chemical reaction kettle waste heat recycling device

Abstract

This utility model discloses a waste heat recovery and reuse device for a chemical reactor, belonging to the field of waste heat recovery technology. It includes a reaction stirring mechanism, a first heat recovery mechanism, and a second heat recovery mechanism. The reaction stirring mechanism includes a chemical reaction tank. The upper surface of the chemical reaction tank is connected to an exhaust pipe, and the outer surface of the chemical reaction tank is connected to a discharge pipe. Through the S-shaped air guide hole on the inner wall of the water tank, the residence time of the hot gas discharged from the reactor in the water tank is extended, which can quickly heat the cold water in the water tank. The hot water produced can be used for preheating in chemical production or for heating in the factory area, reducing additional heating energy consumption. The second heat recovery mechanism uses heating elements in the connecting pipe to recover the hot gas in the exhaust pipe, which is convenient for people to keep warm when the external temperature is too low. The dual recovery design maximizes the utilization rate of waste heat. The combination of temperature sensor and display screen can monitor the water temperature in the water tank in real time, which is convenient for staff to control accurately.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery technology, specifically a waste heat recovery and reuse device for chemical reaction vessels. Background Technology

[0002] Reactors are widely used in industries such as petroleum, chemical, rubber, pesticide, dye, pharmaceutical, and food. They are pressure vessels used to complete processes such as vulcanization, nitration, hydrogenation, hydrocarbonation, polymerization, and condensation. During chemical production, reactors generate a large amount of waste heat. If this heat is not recovered and utilized, it will not only result in significant energy waste but may also lead to high production costs, which contradicts the development concept of energy conservation and environmental protection.

[0003] Currently, waste heat recovery devices for reaction vessels on the market generally suffer from problems such as low waste heat recovery rate, complex structure of recovery devices, high maintenance costs, and single waste heat utilization pathways. The waste heat generated by reaction products is not fully utilized, and efficient comprehensive utilization of energy cannot be achieved. Therefore, those skilled in the art provide a waste heat recovery and reuse device for chemical reaction vessels to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a waste heat recovery and reuse device for chemical reaction vessels to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waste heat recovery and reuse device for a chemical reactor includes a reaction stirring mechanism, a first heat recovery mechanism, and a second heat recovery mechanism. The reaction stirring mechanism includes a chemical reaction tank, the upper surface of which is connected to an air outlet pipe, and the outer surface of which is connected to a material outlet pipe. The first heat recovery mechanism includes a water tank, the inner wall of which is provided with an S-shaped air guide hole, and the bottom surface of which is connected to a water outlet pipe.

[0007] As a further embodiment of this utility model: the inner top wall and the inner bottom wall of the chemical reaction vessel are both inlaid with bearings, the inner rings of the two bearings are connected to a rotating shaft, and the outer surface of the rotating shaft is connected to annularly arranged stirring blades.

[0008] As a further improvement of this utility model: a drive motor is installed on the upper surface of the chemical reaction vessel, and the output end of the drive motor is connected to the rotating shaft.

[0009] As a further improvement of this utility model: the upper surface of the chemical reaction vessel has two feed inlets, and the interior of each feed inlet is equipped with a sealing plug; the bottom surface of the chemical reaction vessel is connected to a support frame.

[0010] As a further embodiment of this utility model: the second heat recovery mechanism includes a connecting pipe, one end of which is connected to an exhaust pipe, and a heating element is threadedly connected inside the connecting pipe.

[0011] As a further improvement of this utility model: the upper surface of the water tank is provided with a water inlet, and the inside of the water inlet is provided with a threaded plug.

[0012] As a further improvement of this utility model: a temperature sensor is installed on the inner bottom wall of the water tank, and a display screen is installed on the upper surface of the water tank.

[0013] As a further embodiment of this utility model: the bottom surface of the water tank is connected to a base, and the upper surface of the water tank is connected to an exhaust pipe and a vent pipe, with one end of the vent pipe connected to the exhaust pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This waste heat recovery and reuse device for chemical reactors extends the residence time of hot gas discharged from the reactor in the water tank through S-shaped air guide holes on the inner wall of the water tank, significantly improving heat exchange efficiency. It can quickly heat the cold water in the water tank, and the produced hot water can be used for preheating in chemical production or for heating in the factory area, reducing additional heating energy consumption. The second heat recovery mechanism uses heating elements in the connecting pipe to recover the hot gas in the exhaust pipe, making it convenient for people to keep warm when the external temperature is too low. The dual recovery design maximizes the utilization rate of waste heat. The combination of temperature sensor and display screen can monitor the water temperature in the tank in real time, making it easy for staff to make precise adjustments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a waste heat recovery and reuse device for a chemical reactor.

[0017] Figure 2 A top view of a waste heat recovery and reuse device for a chemical reactor.

[0018] Figure 3 A rear view of a waste heat recovery and reuse device for a chemical reactor.

[0019] Figure 4 This is a side sectional view of a waste heat recovery and reuse device for a chemical reactor.

[0020] Figure 5 This is a front sectional view of a waste heat recovery and reuse device for a chemical reactor.

[0021] In the diagram: 1. Reaction stirring mechanism; 101. Chemical reaction vessel; 102. Bearing; 103. Rotating shaft; 104. Stirring blade; 105. Drive motor; 106. Feed inlet; 107. Sealing plug; 108. Gas outlet pipe; 109. Discharge pipe; 110. Support frame; 2. First heat recovery mechanism; 201. Water tank; 202. Temperature sensor; 203. Water outlet pipe; 204. S-shaped air guide hole; 205. Exhaust pipe; 206. Water inlet; 207. Threaded plug; 208. Display screen; 209. Base; 210. Air guide pipe; 3. Second heat recovery mechanism; 301. Connecting pipe; 302. Heating element. Detailed Implementation

[0022] Please see Figures 1-5 In this embodiment of the utility model, a waste heat recovery and reuse device for a chemical reactor includes a reaction stirring mechanism 1, a first heat recovery mechanism 2, and a second heat recovery mechanism 3. The reaction stirring mechanism 1 includes a chemical reaction tank 101, with an exhaust pipe 108 connected to the upper surface of the chemical reaction tank 101 and a discharge pipe 109 connected to the outer surface of the chemical reaction tank 101. The first heat recovery mechanism 2 includes a water tank 201, with an S-shaped air guide hole 204 opened on the inner wall of the water tank 201 and a water outlet pipe 203 connected to the bottom surface of the water tank 201. The overall structure is compact and suitable for chemical production scenarios. While reducing energy consumption, it also reduces production and operating costs, and has good economic and environmental value.

[0023] Bearings 102 are embedded in the inner top wall and the inner bottom wall of the chemical reaction tank 101. The inner rings of the two bearings 102 are connected to a rotating shaft 103. The outer surface of the rotating shaft 103 is connected to annularly arranged stirring blades 104. A drive motor 105 is installed on the upper surface of the chemical reaction tank 101. The output end of the drive motor 105 is connected to the rotating shaft 103. Two feed inlets 106 are opened on the upper surface of the chemical reaction tank 101. Both feed inlets 106 are equipped with sealing plugs 107. A support frame 110 is connected to the bottom surface of the chemical reaction tank 101. This not only improves the reaction effect of chemical raw materials, but also facilitates the addition of raw materials.

[0024] The second heat recovery mechanism 3 includes a connecting pipe 301, one end of which is connected to the exhaust pipe 108. A heating element 302 is threadedly connected inside the connecting pipe 301. A water inlet 206 is provided on the upper surface of the water tank 201. A threaded plug 207 is provided inside the water inlet 206. A temperature sensor 202 is installed on the inner bottom wall of the water tank 201. A display screen 208 is installed on the upper surface of the water tank 201. A base 209 is connected to the bottom surface of the water tank 201. An exhaust pipe 205 and a guide pipe 210 are connected to the upper surface of the water tank 201. One end of the guide pipe 210 is connected to the exhaust pipe 108. This mechanism can improve the efficiency of the equipment in recovering chemical waste heat, thereby greatly increasing the practicality of the equipment.

[0025] The working principle of this utility model is as follows: First, people can open the sealing plug 107 on the chemical reaction tank 101, add the reaction raw materials through the feed port 106, and then tighten the sealing plug 107 to ensure the chemical reaction tank 101 is sealed; start the drive motor 105, the output end of the drive motor 105 drives the rotating shaft 103 to rotate in the bearing 102, and the stirring blades 104 arranged in a ring on the outside of the rotating shaft 103 rotate accordingly, uniformly stirring the raw materials in the chemical reaction tank 101, promoting the efficient chemical reaction, and after the reaction is completed, the product is discharged through the discharge pipe 109.

[0026] Waste heat recovery stage: The high-temperature gas generated during the reaction is discharged through the gas outlet pipe 108. A portion of the high-temperature gas enters the water tank 201 through the gas guide pipe 210 and flows along the S-shaped gas guide hole 204 on the inner wall of the water tank 201, where it fully exchanges heat with the cold water in the water tank 201. The heated water is then discharged from the water outlet pipe 203 for use, and the gas after heat exchange is discharged from the exhaust pipe 205. Another portion of the high-temperature gas enters the connecting pipe 301 of the second heat recovery mechanism 3, where it further absorbs waste heat through the heating element 302 connected by threads inside the pipe, achieving secondary waste heat recovery. At the same time, the temperature sensor 202 inside the water tank 201 monitors the water temperature in real time and transmits the data to the display screen 208. The operator can monitor the water temperature through the display screen 208, and simply open the threaded plug 207 of the water inlet 206 when water needs to be added.

[0027] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for recovering and reusing waste heat from a chemical reaction vessel, characterized in that, The system includes a reaction stirring mechanism (1), a first heat recovery mechanism (2), and a second heat recovery mechanism (3). The reaction stirring mechanism (1) includes a chemical reaction tank (101). The upper surface of the chemical reaction tank (101) is connected to an air outlet pipe (108), and the outer surface of the chemical reaction tank (101) is connected to a material outlet pipe (109). The first heat recovery mechanism (2) includes a water tank (201). The inner wall of the water tank (201) is provided with an S-shaped air guide hole (204), and the bottom surface of the water tank (201) is connected to a water outlet pipe (203).

2. The waste heat recovery and reuse device for a chemical reactor according to claim 1, characterized in that, The inner top wall and the inner bottom wall of the chemical reaction vessel (101) are both inlaid with bearings (102), and the inner rings of the two bearings (102) are connected to a rotating shaft (103). The outer surface of the rotating shaft (103) is connected to annularly arranged stirring blades (104).

3. The waste heat recovery and reuse device for a chemical reactor according to claim 1, characterized in that, A drive motor (105) is installed on the upper surface of the chemical reaction vessel (101), and the output end of the drive motor (105) is connected to the rotating shaft (103).

4. The waste heat recovery and reuse device for a chemical reactor according to claim 1, characterized in that, The chemical reaction vessel (101) has two feed inlets (106) on its upper surface, and each feed inlet (106) is provided with a sealing plug (107). The bottom surface of the chemical reaction vessel (101) is connected to a support frame (110).

5. The waste heat recovery and reuse device for a chemical reactor according to claim 1, characterized in that, The second heat recovery mechanism (3) includes a connecting pipe (301), one end of which is connected to the air outlet pipe (108), and a heating element (302) is threaded inside the connecting pipe (301).

6. The waste heat recovery and reuse device for a chemical reactor according to claim 5, characterized in that, The water tank (201) has an inlet (206) on its upper surface, and the inlet (206) has a threaded plug (207) inside.

7. The waste heat recovery and reuse device for a chemical reactor according to claim 1, characterized in that, A temperature sensor (202) is installed on the inner bottom wall of the water tank (201), and a display screen (208) is installed on the upper surface of the water tank (201).

8. The waste heat recovery and reuse device for a chemical reactor according to claim 1, characterized in that, The bottom surface of the water tank (201) is connected to a base (209), and the upper surface of the water tank (201) is connected to an exhaust pipe (205) and a vent pipe (210), with one end of the vent pipe (210) connected to an exhaust pipe (108).

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