Heat exchanger for phosphorus pentachloride production

Abstract

The utility model discloses a heat exchanger for phosphorus pentachloride production, which belongs to the technical field of phosphorus pentachloride production, and comprises a heat exchanger body, the top of the heat exchanger body is in bolted connection with an ultrasonic vibration mechanism, and the bottom of the heat exchanger body is communicated with a collecting mechanism. The heat exchanger body can support and limit the ultrasonic vibration mechanism and the collecting mechanism, the ultrasonic generator generates electric signals needed by ultrasonic waves and provides a power source for the whole vibration cleaning process, the transducer converts the electric signals into mechanical vibration, energy form conversion is achieved, and preparation is made for subsequent vibration enhancement and transmission. The amplitude amplifier amplifies the amplitude of mechanical vibration and enhances the vibration effect, phosphorus pentoxide crystals are made to fall off from the inner wall of the heat exchanger body more easily, the transmitting probe directly transmits amplified ultrasonic vibration to the interior of the heat exchanger body, accurate action is conducted on crystal attachment parts, crystals are effectively promoted to fall off, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphorus pentachloride production, in particular to a heat exchanger for phosphorus pentachloride production. Background Art

[0002] During the preparation of phosphorus pentachloride, part of the Cl2 needs to be recycled. The recycled Cl2 gas contains CO2 and a small amount of solid phosphorus pentachloride, and needs to be cooled before it is recycled.

[0003] Existing heat exchangers, when cooling the aforementioned gases, suffer from low space utilization, poor sealing performance, and low heat exchange efficiency. Furthermore, phosphorus pentachloride crystallizes and adheres to the tube wall, resulting in poor heat exchange and pitting corrosion on the heat exchange tubes.

[0004] An existing patent (publication number: CN217953204U) discloses a heat exchanger for phosphorus pentachloride production, comprising a heat exchanger body for use in phosphorus pentoxide production, an air outlet being provided at the bottom end of the heat exchanger body, a thread being provided at the end of the air outlet away from the heat exchanger body, and a collection device being provided in conjunction with the thread. The collection device comprises a tightening sleeve, a polyethylene plastic bag, and a sealing strip. The tightening sleeve is used in conjunction with the thread, a polyethylene plastic bag being provided at the end of the tightening sleeve away from the thread, and a sealing strip being provided on the side of the polyethylene plastic bag close to the tightening sleeve. The utility model adds a collection device at the air outlet to collect and process phosphorus pentoxide crystals using the polyethylene plastic bag. The utility model has a simple structure, is easy to operate, improves the safety of the device, and enhances the practicality of the device.

[0005] In response to the above-mentioned problem, the existing patent provides a solution, but it lacks a structure for vibrating the inside of the heat exchanger used in phosphorus pentachloride production, resulting in low efficiency in removing small, tightly attached crystals, thereby reducing the heat exchange efficiency of the heat exchanger used in phosphorus pentachloride production.

[0006] Therefore, a heat exchanger for producing phosphorus pentachloride is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a heat exchanger for phosphorus pentachloride production, which can solve the problem that the existing phosphorus pentachloride production lacks a structure for vibrating the inner side of the heat exchanger for phosphorus pentachloride production, resulting in low efficiency in removing small and tightly attached crystals, thereby reducing the heat exchange efficiency of the heat exchanger for phosphorus pentachloride production.

[0008] To achieve the above object, the present invention provides the following technical solution: a heat exchanger for phosphorus pentachloride production, comprising a heat exchanger body, the top of the heat exchanger body being bolted with an ultrasonic vibration mechanism, and the bottom of the heat exchanger body being connected to a collection mechanism;

[0009] The ultrasonic vibration mechanism includes an ultrasonic generator, a transducer, an amplifier and a transmitting probe. The ultrasonic generator is bolted to the top of the heat exchanger body, the transducer is bolted to the rear side of the ultrasonic generator, the amplifier is bolted to the rear side of the transducer, the top of the transmitting probe is fixedly connected to the bottom of the amplifier, and the bottom of the transmitting probe is fixedly connected to the inner wall of the heat exchanger body.

[0010] Preferably, the collecting mechanism comprises a micro vacuum pump, a vacuum pipe, an adsorption box, a filter cloth and a collecting bin, and the micro vacuum pump is bolted to the bottom of the heat exchanger body.

[0011] Preferably, the vacuum suction pipe is connected to the front side of the micro vacuum pump, and the side of the vacuum suction pipe away from the micro vacuum pump passes through and is connected to the inner side of the adsorption box.

[0012] Preferably, the adsorption box is connected to the bottom of the heat exchanger body, the filter cloth is bolted to one end of the vacuum pipe passing through the adsorption box, and the collection bin is movably connected to the bottom of the adsorption box.

[0013] Preferably, the surface of the filter cloth is coated with an anti-corrosion coating, and the filter cloth is made of a non-woven material.

[0014] Preferably, a fixing seat is bolted to the bottom of the micro vacuum pump, and a side of the fixing seat away from the micro vacuum pump is bolted to the bottom of the heat exchanger body.

[0015] Preferably, a limiting ring is bolted to the surface of the ultrasonic generator, and the inner side of the limiting ring is welded to the surface of the heat exchanger body.

[0016] Preferably, a sealing ring is bolted to a side of the vacuum suction tube close to the adsorption box, and a side of the sealing ring away from the vacuum suction tube is bolted to an inner side of the adsorption box.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The heat exchanger body of the present application can support and limit the ultrasonic vibration mechanism and the collection mechanism. The ultrasonic generator generates the electrical signal required for ultrasonic waves, providing a power source for the entire vibration cleaning process. The transducer converts the electrical signal into mechanical vibration, realizing energy conversion and preparing for subsequent vibration enhancement and transmission. The amplifier amplifies the amplitude of the mechanical vibration, enhancing the vibration effect, making it easier for phosphorus pentoxide crystals to fall off from the inner wall of the heat exchanger body. The transmitting probe transmits the amplified ultrasonic vibration directly into the interior of the heat exchanger body, precisely targeting the crystal attachment site, effectively promoting crystal shedding and improving cleaning efficiency. The micro vacuum pump provides negative pressure suction, creating power conditions for collecting phosphorus pentoxide crystals. The vacuum suction pipe can guide the suction of the micro vacuum pump to the inside of the adsorption box. The adsorption box can guide the suction to the inside of the heat exchanger body, so that the phosphorus pentoxide crystals that fall off after vibration are adsorbed to the inside of the adsorption box. The filter cloth can prevent the crystals from entering the vacuum suction pipe and prevent the vacuum suction pipe from being blocked. The collection bin is used to centrally store the collected phosphorus pentoxide crystals for subsequent processing and reuse.

[0019] 2. Compared with the existing heat exchanger for phosphorus pentachloride production, the present application improves the efficiency of cleaning the small, tightly attached crystals on the inner wall of the heat exchanger through the cooperation of the ultrasonic vibration mechanism and the collection mechanism, thereby improving the heat exchange efficiency of the heat exchanger for phosphorus pentachloride production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the heat exchanger for phosphorus pentachloride production of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of the ultrasonic vibration mechanism of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the collection mechanism of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the collection bin of the utility model;

[0024] Figure 5 This is a schematic structural diagram of the transducer of the present utility model.

[0025] In the figure, 1. heat exchanger body; 2. ultrasonic vibration mechanism; 201. ultrasonic generator; 202. transducer; 203. amplifier; 204. transmitting probe; 3. collecting mechanism; 301. micro vacuum pump; 302. vacuum suction pipe; 303. adsorption box; 304. filter cloth; 305. collecting bin; 4. fixing seat; 5. limiting ring; 6. sealing ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , this utility model provides a technical solution:

[0028] A heat exchanger for phosphorus pentachloride production includes a heat exchanger body 1, an ultrasonic vibration mechanism 2 is bolted to the top of the heat exchanger body 1, and a collection mechanism 3 is connected to the bottom of the heat exchanger body 1;

[0029] The ultrasonic vibration mechanism 2 includes an ultrasonic generator 201, a transducer 202, an amplifier 203 and a transmitting probe 204. The ultrasonic generator 201 is bolted to the top of the heat exchanger body 1, the transducer 202 is bolted to the rear side of the ultrasonic generator 201, the amplifier 203 is bolted to the rear side of the transducer 202, the top of the transmitting probe 204 is fixedly connected to the bottom of the amplifier 203, and the bottom of the transmitting probe 204 is fixedly connected to the inner wall of the heat exchanger body 1.

[0030] In this embodiment: by providing a heat exchanger body 1, the ultrasonic vibration mechanism 2 and the collecting mechanism 3 can be supported and limited. By providing an ultrasonic generator 201, the electrical signal required for ultrasonic waves is generated, providing a power source for the entire vibration cleaning process. By providing a transducer 202, the electrical signal is converted into mechanical vibration to achieve energy form conversion, preparing for subsequent vibration enhancement and transmission. By providing an amplifier 203, the amplitude of the mechanical vibration is amplified to enhance the vibration effect, making it easier for phosphorus pentoxide crystals to fall off from the inner wall of the heat exchanger body 1. By providing a transmitting probe 204, the amplified ultrasonic vibration is directly transmitted to the interior of the heat exchanger body 1, precisely acting on the crystal attachment site, effectively promoting the crystal to fall off, and improving the cleaning efficiency.

[0031] Specifically, such as Figure 3 、 Figure 4 、 Figure 5 As shown, the collecting mechanism 3 includes a micro vacuum pump 301 , a vacuum pipe 302 , an adsorption box 303 , a filter cloth 304 and a collecting chamber 305 . The micro vacuum pump 301 is bolted to the bottom of the heat exchanger body 1 .

[0032] Specifically, such as Figure 3 、 Figure 4 、 Figure 5As shown, the vacuum suction pipe 302 is connected to the front side of the micro vacuum pump 301 , and the side of the vacuum suction pipe 302 away from the micro vacuum pump 301 passes through and is connected to the inner side of the adsorption box 303 .

[0033] Specifically, such as Figure 3 、 Figure 4 、 Figure 5 As shown, the adsorption box 303 is connected to the bottom of the heat exchanger body 1 , the filter cloth 304 is bolted to one end of the vacuum pipe 302 passing through the adsorption box 303 , and the collection bin 305 is movably connected to the bottom of the adsorption box 303 .

[0034] In this embodiment, a micro vacuum pump 301 is provided to provide negative pressure suction, thereby creating a driving force for the collection of phosphorus pentoxide crystals. A vacuum pipe 302 is provided to guide the suction of the micro vacuum pump 301 to the inner side of the adsorption box 303. The adsorption box 303 can guide the suction to the inner side of the heat exchanger body 1, so that the phosphorus pentoxide crystals that fall off after vibration are adsorbed to the inner side of the adsorption box 303. A filter cloth 304 is provided to prevent the crystals from entering the vacuum pipe 302 and prevent the vacuum pipe 302 from being blocked. A collection bin 305 is provided to centrally store the collected phosphorus pentoxide crystals, facilitating subsequent processing and reuse.

[0035] Specifically, such as Figure 3 As shown, the surface of the filter cloth 304 is coated with an anti-corrosion coating, and the filter cloth 304 is made of non-woven fabric material.

[0036] Specifically, such as Figure 4 As shown, a fixing seat 4 is bolted to the bottom of the micro vacuum pump 301 , and a side of the fixing seat 4 away from the micro vacuum pump 301 is bolted to the bottom of the heat exchanger body 1 .

[0037] In this embodiment: by providing an anti-corrosion coating, the resistance of the filter cloth 304 to corrosive substances such as phosphorus pentachloride can be enhanced, its service life can be extended, and stable operation in harsh working environments can be ensured. By providing the filter cloth 304 to be made of non-woven fabric material, the non-woven fabric has good air permeability and filtering performance, which is conducive to the passage of gas while effectively blocking phosphorus pentoxide crystals. By providing a fixing seat 4, a stable support and fixation is provided for the micro vacuum pump 301, reducing its vibration and displacement during operation, ensuring the stability and reliability of the micro vacuum pump 301, and thus ensuring that the entire collecting mechanism 3 can operate continuously and effectively.

[0038] Specifically, such as Figure 5 As shown, a limiting ring 5 is bolted to the surface of the ultrasonic generator 201 , and the inner side of the limiting ring 5 is welded to the surface of the heat exchanger body 1 .

[0039] Specifically, such as Figure 3As shown, a sealing ring 6 is bolted to one side of the vacuum suction tube 302 close to the adsorption box 303 , and a side of the sealing ring 6 away from the vacuum suction tube 302 is bolted to the inner side of the adsorption box 303 .

[0040] In this embodiment, a limiting ring 5 is provided to limit and fix the ultrasonic generator 201 to prevent displacement or shaking during operation, thereby ensuring that the ultrasonic generator 201 can stably transmit ultrasonic vibrations to the interior of the heat exchanger body 1, thereby improving the effect and stability of crystal cleaning. A sealing ring 6 is provided to enhance the sealing performance of the connection between the vacuum suction pipe 302 and the adsorption box 303, reduce gas leakage, ensure that the negative pressure generated by the micro vacuum pump 301 can effectively act on the interior of the heat exchanger body 1, and improve the collection efficiency of phosphorus pentoxide crystals.

[0041] Working principle: First, the user installs the heat exchanger body 1 at the location where work is required. Then, when it is necessary to clean the phosphorus pentoxide crystals on the inner wall of the heat exchanger body 1, the user turns on the power and starts the ultrasonic generator 201. The ultrasonic generator 201 generates the electrical signal required for the ultrasonic wave, providing a power source for the entire vibration cleaning process. The transducer 202 converts the electrical signal into mechanical vibration. The amplifier 203 amplifies the amplitude of the mechanical vibration, enhances the vibration effect, and makes it easier for the phosphorus pentoxide crystals to fall off from the inner wall of the heat exchanger body 1. The transmitting probe 204 transmits the amplified ultrasonic vibration directly to the inner wall of the heat exchanger body 1, and vibrates and cleans the phosphorus pentoxide crystals attached to the inner wall of the heat exchanger body 1. After that, the user turns on the power and starts the micro vacuum pump 301. The micro vacuum pump 301 After startup, negative pressure suction is provided. The vacuum pipe 302 guides the suction of the micro vacuum pump 301 to the inner side of the adsorption box 303. The adsorption box 303 guides the suction to the inner side of the heat exchanger body 1, so that the phosphorus pentoxide crystals that fall off after vibration are adsorbed to the inner side of the adsorption box 303. The filter cloth 304 blocks the crystals from entering the vacuum pipe 302 to prevent the vacuum pipe 302 from being blocked. The collection bin 305 is used to centrally store the collected phosphorus pentoxide crystals for subsequent processing and reuse. Finally, after cleaning and collecting the phosphorus pentoxide crystals on the inner wall of the heat exchanger body 1, the user turns off the power to the micro vacuum pump 301 and the ultrasonic generator 201 and stops them. The micro vacuum pump 301 stops generating negative pressure suction and the ultrasonic generator 201 stops sending ultrasonic vibrations.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat exchanger for phosphorus pentachloride production, comprising a heat exchanger body (1), characterized in that: The top of the heat exchanger body (1) is bolted with an ultrasonic vibration mechanism (2), and the bottom of the heat exchanger body (1) is connected to a collection mechanism (3); The ultrasonic vibration mechanism (2) comprises an ultrasonic generator (201), a transducer (202), an amplifier (203) and a transmitting probe (204); the ultrasonic generator (201) is bolted to the top of the heat exchanger body (1); the transducer (202) is bolted to the rear side of the ultrasonic generator (201); the amplifier (203) is bolted to the rear side of the transducer (202); the top of the transmitting probe (204) is fixedly connected to the bottom of the amplifier (203); and the bottom of the transmitting probe (204) is fixedly connected to the inner wall of the heat exchanger body (1).

2. A heat exchanger for phosphorus pentachloride production according to claim 1, characterized in that: The collecting mechanism (3) comprises a micro vacuum pump (301), a vacuum suction pipe (302), an adsorption box (303), a filter cloth (304) and a collecting bin (305); the micro vacuum pump (301) is bolted to the bottom of the heat exchanger body (1).

3. A heat exchanger for phosphorus pentachloride production according to claim 2, characterized in that: The vacuum suction pipe (302) is connected to the front side of the micro vacuum pump (301), and the side of the vacuum suction pipe (302) away from the micro vacuum pump (301) passes through and is connected to the inner side of the adsorption box (303).

4. A heat exchanger for phosphorus pentachloride production according to claim 3, characterized in that: The adsorption box (303) is connected to the bottom of the heat exchanger body (1), the filter cloth (304) is bolted to one end of the vacuum pipe (302) passing through the adsorption box (303), and the collection bin (305) is movably connected to the bottom of the adsorption box (303).

5. A heat exchanger for phosphorus pentachloride production according to claim 4, characterized in that: The surface of the filter cloth (304) is coated with an anti-corrosion coating, and the filter cloth (304) is made of a non-woven fabric material.

6. A heat exchanger for phosphorus pentachloride production according to claim 5, characterized in that: A fixing seat (4) is bolted to the bottom of the micro vacuum pump (301), and the side of the fixing seat (4) away from the micro vacuum pump (301) is bolted to the bottom of the heat exchanger body (1).

7. A heat exchanger for phosphorus pentachloride production according to claim 1, characterized in that: A limiting ring (5) is bolted to the surface of the ultrasonic generator (201), and the inner side of the limiting ring (5) is welded to the surface of the heat exchanger body (1).

8. A heat exchanger for phosphorus pentachloride production according to claim 2, characterized in that: A sealing ring (6) is bolted to the side of the vacuum suction tube (302) close to the adsorption box (303), and a side of the sealing ring (6) away from the vacuum suction tube (302) is bolted to the inner side of the adsorption box (303).

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