Heat energy recovery device for chlorinated paraffin tail gas treatment

Abstract

The utility model relates to the technical field of chlorinated paraffin tail gas treatment, in particular to a heat energy recovery device for chlorinated paraffin tail gas treatment, which comprises a cooling tank and partition plates mounted on two sides of the inner wall of the cooling tank, and a heat energy recovery cavity is formed by the two partition plates and the inner wall of the cooling tank. The number of the liquid injection ports is two, and the liquid injection ports are communicated with the heat energy recovery cavity; and the heat recovery mechanism is mounted in the heat energy recovery cavity. According to the device, the heat recovery efficiency is improved by arranging the heat recovery mechanism and utilizing a heat exchange through pipe, a heat exchange partition plate, a heat exchange guide pipe and other components, the transmission mechanism is arranged to drive the heat recovery mechanism to rotate, tail gas and cooling liquid are fully mixed, the heat exchange effect is further enhanced, and through cooperation of an intelligent electromagnetic valve, a motor, a monitor and a PLC control panel, the heat energy recovery efficiency is improved. Automatic control over the heat energy recovery process is achieved, adjustment is conducted according to the actual temperature condition, and the operation stability and the energy-saving effect of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of chlorinated paraffin tail gas treatment technology, and in particular to a heat energy recovery device for chlorinated paraffin tail gas treatment. Background Technology

[0002] In the production of chlorinated paraffin, heat recovery from exhaust gas is crucial. Existing heat recovery devices for chlorinated paraffin exhaust gas treatment, such as the one disclosed in patent number CN220322137U, while achieving some degree of heat recovery and scale removal, still have significant drawbacks. Their complex structure, including numerous sealed bearings, connecting pipes, gears, pulleys, and other components, not only increases manufacturing and maintenance costs but also increases the risk of equipment failure, reducing stability and reliability. Furthermore, the continuous operation of the motor and water pump during operation results in high energy consumption, hindering energy conservation and emission reduction. Therefore, developing a simpler, lower-energy-consumption heat recovery device for chlorinated paraffin exhaust gas treatment is of significant practical importance. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a heat recovery device for treating chlorinated paraffin tail gas, thereby solving the problem of low heat recovery efficiency in existing technologies for chlorinated paraffin tail gas.

[0004] To solve the above problems, the technical solution adopted by this utility model is: a heat recovery device for treating chlorinated paraffin tail gas, including a cooling tank, and partitions installed on both sides of the inner wall of the cooling tank, the two partitions forming a heat recovery chamber with the inner wall of the cooling tank; two injection ports that communicate with the heat recovery chamber; a heat recovery mechanism installed inside the heat recovery chamber; a transmission mechanism installed at one end inside the cooling tank for driving the rotation of the heat recovery mechanism; two liquid outlet pipes that communicate with the heat recovery chamber; an inlet pipe and an outlet pipe installed on the cooling tank and communicating with the heat recovery mechanism.

[0005] Preferably, the heat recovery mechanism includes a heat exchange pipe, heat exchange baffles installed at both ends and the center of the heat exchange pipe, and heat exchange conduits evenly installed on opposite sides of the three heat exchange baffles. The heat exchange baffles are hollow structures, and the heat exchange baffles at both ends of the heat exchange pipe are respectively connected to the inlet pipe and the outlet pipe.

[0006] Preferably, a sleeve is installed at the center of the outer surface of the heat exchange baffle, and multiple circulation pipes are evenly installed on the sleeve. A longitudinal pipe is evenly installed between the circulation pipe and the heat exchange pipe.

[0007] Preferably, heat exchange pipes are evenly installed between the three heat exchange baffles.

[0008] Preferably, the transmission mechanism includes a motor, which is mounted at one end of the cooling tank. A first gear is mounted at the output end of the motor, and a second gear that meshes with the first gear is mounted on the outer surface of the air outlet pipe.

[0009] Preferably, each of the two outlet pipes is equipped with an intelligent solenoid valve, which is electrically connected to an external PLC control panel.

[0010] Preferably, the motor is electrically connected to the PLC control panel.

[0011] Preferably, two monitoring instruments are installed on the cooling tank, and the monitoring instruments are electrically connected to the PLC control panel. The monitoring instruments are used to monitor the temperature inside the heat recovery chamber.

[0012] This utility model has a novel structure, ingenious design, and is simple and convenient to operate. Compared with the prior art, it has the following advantages:

[0013] 1. This device increases the contact area between exhaust gas and coolant by setting up a heat recovery mechanism and using components such as heat exchange pipes, heat exchange baffles and heat exchange conduits, thereby improving the heat recovery efficiency.

[0014] 2. This device drives the heat recovery mechanism to rotate by setting a transmission mechanism, so that the exhaust gas and coolant are fully mixed, which further enhances the heat exchange effect and improves the energy utilization rate.

[0015] 3. This device, through the cooperation of intelligent solenoid valves, motors, and monitoring instruments with a PLC control panel, realizes the automated control of the heat recovery process, and adjusts according to the actual temperature conditions, thereby improving the operational stability and energy-saving effect of the device. Attached Figure Description

[0016] Figure 1 This is a perspective view of a heat recovery device for treating chlorinated paraffin tail gas according to the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the cooling tank of a heat recovery device for treating chlorinated paraffin tail gas according to this utility model.

[0018] Figure 3 This is a half-sectional structural diagram of a heat recovery device for treating chlorinated paraffin tail gas according to the present invention.

[0019] Figure 4 This is a schematic diagram of the circulation pipe structure of a heat recovery device for treating chlorinated paraffin tail gas according to the present invention.

[0020] 1-Cooling tank, 2-Injection port, 3-Air inlet pipe, 4-Outlet pipe, 5-Monitor, 6-Outlet pipe, 7-Baffle, 8-Heat recovery mechanism, 9-Intelligent solenoid valve, 10-Transmission mechanism, 11-Motor, 12-First gear, 13-Second gear, 14-Heat exchange baffle, 15-Heat exchange conduit, 16-Heat exchange through pipe, 17-Shell pipe, 18-Circulation pipe, 19-Longitudinal pipe. Detailed Implementation

[0021] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Figure 1-4 As shown, this utility model provides a heat recovery device for treating chlorinated paraffin tail gas, including a cooling tank 1. Two partitions 7 are installed on both sides of the inner wall of the cooling tank 1, forming a heat recovery chamber between the two partitions 7 and the inner wall of the cooling tank 1. Two injection ports 2 are also provided, communicating with the heat recovery chamber, for injecting coolant into the heat recovery chamber. A heat recovery mechanism 8 is installed inside the heat recovery chamber and is the core component for realizing heat recovery. A transmission mechanism 10 is installed at one end inside the cooling tank 1 to drive the rotation of the heat recovery mechanism 8. Two outlet pipes 4 communicate with the heat recovery chamber to discharge the coolant after heat exchange. An inlet pipe 3 and an outlet pipe 6 are respectively installed on the cooling tank 1 and communicate with the heat recovery mechanism 8. The tail gas enters the heat recovery mechanism 8 through the inlet pipe 3, and after heat exchange, is discharged from the outlet pipe 6.

[0023] The heat recovery mechanism 8 includes a heat exchange pipe 16, heat exchange baffles 14 installed at both ends and the center of the heat exchange pipe 16, and heat exchange conduits 15 evenly installed on opposite sides of the three heat exchange baffles 14. The heat exchange baffles 14 are hollow structures. The heat exchange baffles 14 at both ends of the heat exchange pipe 16 are connected to the inlet pipe 3 and the outlet pipe 6, respectively, allowing the exhaust gas to flow within the heat recovery mechanism 8. A sleeve 17 is installed at the center of the outer surface of each heat exchange baffle 14. Multiple circulation pipes 18 are evenly installed on the sleeves 17. Longitudinal pipes 19 are evenly installed between the circulation pipes 18 and the heat exchange pipe 16, which facilitates the circulation of coolant and improves heat exchange efficiency. The heat exchange conduits 15 evenly installed between the three heat exchange baffles 14 further increase the contact area between the exhaust gas and the coolant, enhancing the heat exchange effect.

[0024] The transmission mechanism 10 includes a motor 11, which is installed at one end of the cooling tank 1. A first gear 12 is installed at the output end of the motor 11, and a second gear 13 that meshes with the first gear 12 is installed on the outer surface of the exhaust pipe 6. After the motor 11 is started, it drives the exhaust pipe 6 and the heat recovery mechanism 8 connected to the exhaust pipe 6 to rotate through the meshing transmission of the first gear 12 and the second gear 13, so that the exhaust gas and the coolant can be fully contacted, thereby improving the heat recovery efficiency.

[0025] Two intelligent solenoid valves 9 are installed on the two liquid outlet pipes 4 respectively, and the motor 11 is electrically connected to an external PLC control panel. Two monitoring instruments 5 are installed on the cooling tank 1, and the monitoring instruments 5 are electrically connected to the PLC control panel to monitor the temperature in the heat recovery chamber. Based on the temperature information fed back by the monitoring instruments 5, the PLC control panel controls the opening and closing of the intelligent solenoid valves 9 and the operating status of the motor 11 to realize automated control of the heat recovery process.

[0026] Instructions for use: First, install the cooling tank 1 in a suitable location, ensuring its stability. Connect the injection port 2 to the coolant supply pipe, and the outlet pipe 4 to the coolant recovery pipe. Connect the inlet pipe 3 to the chlorinated paraffin exhaust pipe, and the outlet pipe 6 to the subsequent exhaust gas treatment equipment. Install the motor 11, intelligent solenoid valve 9, and monitor 5, and electrically connect them to the PLC control panel, checking that the connections are correct and secure. Then, start the coolant supply system, injecting coolant into the heat recovery chamber through the injection port 2, and then open the exhaust gas... The valve in the outlet pipe allows the chlorinated paraffin exhaust gas to enter the heat recovery mechanism 8 through the inlet pipe 3. The exhaust gas flows within the heat exchange pipe 16 and heat exchange baffle 14, exchanging heat with the surrounding coolant and transferring heat to the coolant. Then, the motor 11 is started, driving the first gear 12 to rotate. Through the meshing of the first gear 12 and the second gear 13, the heat recovery mechanism 8 rotates, enhancing the mixing degree of the exhaust gas and coolant and improving the heat exchange efficiency. During operation, the monitoring instrument 5 monitors the temperature inside the heat recovery chamber in real time and feeds the temperature information back to the PLC control panel. When the coolant absorbs heat and reaches a certain temperature, the PLC control panel controls the intelligent solenoid valve 9 to open, allowing the coolant that has undergone heat exchange to be discharged through the outlet pipe 4. At the same time, new coolant is injected to ensure the continuous heat exchange process. Finally, the exhaust gas after heat exchange is discharged from the outlet pipe 6 and enters the subsequent exhaust gas treatment equipment for further treatment.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A heat recovery device for treating tail gas of chlorinated paraffin, comprising a cooling tank (1), characterized in that: Two baffles (7) are installed on the two sides of the inner wall of the cooling tank (1), and a heat energy recovery cavity is formed between the two baffles (7) and the inner wall of the cooling tank (1); a liquid injection port (2) is provided, the number of the liquid injection port (2) is two, and the liquid injection port (2) is in communication with the heat energy recovery cavity; a heat recovery mechanism (8) is installed in the heat energy recovery cavity; a transmission mechanism (10) is installed at one end of the cooling tank (1) and is used to drive the rotation of the heat recovery mechanism (8); two liquid outlet pipes (4) are provided, the liquid outlet pipes (4) are in communication with the heat energy recovery cavity; an air inlet pipe (3) and an air outlet pipe (6) are installed on the cooling tank (1) and are in communication with the heat recovery mechanism (8).

2. A heat recovery unit for treating the off-gas of chlorinated paraffins according to claim 1, characterized in that: The heat recovery mechanism (8) comprises a heat exchange pipe (16), heat exchange baffles (14) installed at both ends and the center of the heat exchange pipe (16), and heat exchange guide pipes (15) uniformly installed on one side of the three heat exchange baffles (14), the heat exchange baffles (14) are hollow structures, and the heat exchange baffles (14) at both ends of the heat exchange pipe (16) are in communication with the air inlet pipe (3) and the air outlet pipe (6) respectively.

3. A heat recovery unit for treating the off-gas of chlorinated paraffins according to claim 2, characterized in that: A sleeve pipe (17) is installed at the center of the outer surface of the heat exchange baffle (14), a plurality of circulation pipes (18) are uniformly installed on the sleeve pipe (17), and a vertical pipe (19) is uniformly installed between the circulation pipe (18) and the heat exchange pipe (16).

4. A heat recovery unit for treating the off-gas of chlorinated paraffins according to claim 2, characterized in that: The heat exchange guide pipes (15) are uniformly installed between the three heat exchange baffles (14).

5. A thermal energy recovery unit for treating the off-gas of chlorinated paraffins according to claim 1, characterized in that: The transmission mechanism (10) comprises a motor (11), the motor (11) is installed at one end of the cooling tank (1), a first gear (12) is installed at the output end of the motor (11), and a second gear (13) meshing with the first gear (12) is installed on the outer surface of the air outlet pipe (6).

6. A heat recovery unit for treating the off-gas of chlorinated paraffins according to claim 5, characterized in that: An intelligent electromagnetic valve (9) is installed on each of the two liquid outlet pipes (4), and the intelligent electromagnetic valve (9) is electrically connected with the PLC control panel.

7. A heat recovery unit for treating the off-gas of chlorinated paraffins according to claim 6, characterized in that: The motor (11) is electrically connected with the PLC control panel.

8. A heat recovery unit for treating the off-gas of chlorinated paraffins according to claim 6, characterized in that: Two monitoring instruments (5) are installed on the cooling tank (1), the monitoring instruments (5) are electrically connected with the PLC control panel, and the monitoring instruments (5) are used to monitor the temperature in the heat energy recovery cavity.

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