Heat exchanger for pyromellitic dianhydride

Abstract

The utility model discloses a heat exchanger for pyromellitic dianhydride, which relates to the technical field of heat exchangers, and comprises a support seat and a heat exchanger, the top of the support seat is provided with the heat exchanger, the left side surface of the heat exchanger is provided with a sealing installation assembly, and a spoiler installation rod is convenient for installing a heat exchange spoiler. According to the pyromellitic dianhydride oxidation device, the heat exchange spoiler can conduct spoiler on pyromellitic dianhydride, the contact area between the pyromellitic dianhydride and oxygen can be increased, and therefore the reaction rate of oxidation of the pyromellitic dianhydride can be increased, after gas is injected into the gas inlet pipe through the arranged gas inlet pipe, the gas is guided through the gas guide pipe and the buffer pipe, and therefore the oxidation reaction rate of the pyromellitic dianhydride is improved. The protective sleeve has the sealing effect on connection of the air guide pipe and the buffer pipe, the first sealing ring and the second sealing ring have the sealing installation effect on contact of the reinforcing cover and the outer wall of the buffer pipe, the use stability of the buffer pipe can be improved, the main air pressure buffer plate is used for buffering air pressure in the heat exchanger, and the service life of the heat exchanger is prolonged. And the locking disc is used for locking.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger used for pyromellitic dianhydride. Background Art

[0002] The heat exchange plate rotates around the heat exchange tube. This process involves the setting of a driving device. However, the driving device is set around the heat exchanger. The heat dissipation of the driving device will affect the oxidation temperature inside the heat exchanger, making it impossible for the staff to accurately grasp the oxidation reaction temperature inside the heat exchanger, which is not conducive to improving the production efficiency of isophthalic anhydride.

[0003] A heat exchanger for the oxidation of pyromellitic anhydride is proposed in the patent with publication number CN217725569U, which includes a gas inlet bin, a gas inlet bin connection seat, a main connection seat, a main connection bolt, a heat exchange bin, a gas inlet pipe, a raw material outlet pipe, a raw material inlet bin, a raw material inlet bin connection seat, a raw material inlet pipe, a main air pressure buffer plate, a heat exchange plate mounting rod, a heat exchange spoiler, and a spoiler groove. First, oxygen is charged into the heat exchange bin through the gas inlet pipe, and the oxygen temperature in the heat exchange bin is ensured to be within the most suitable temperature range for the oxidation reaction of pyromellitic anhydride. Pyromellitic anhydride is charged into the heat exchange bin through the raw material inlet pipe, and the heat exchange spoiler is set to disturb the pyromellitic anhydride, thereby increasing the contact area between pyromellitic anhydride and oxygen, thereby increasing the reaction rate of the oxidation of pyromellitic anhydride. After the oxidation heat exchange, the pyromellitic anhydride flows out of the heat exchange bin through the raw material outlet pipe, completing the oxidation reaction of the pyromellitic anhydride. The utility model avoids the need to set up a driving device, ensuring the precise control of the temperature inside the heat exchange bin during the oxidation heat exchange process, and at the same time sets up a heat exchange spoiler to increase the reaction rate of the pyromellitic anhydride, thereby improving the practicality of the utility model. However, the following problems still exist in the patent:

[0004] The existing heat exchanger needs to inject gas into the heat exchanger during use, does not have a good sealing installation structure, and its gas guide does not have a good stabilizing effect.

[0005] In view of the above problems, it is necessary to design a heat exchanger for pyromellitic dianhydride to overcome the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a heat exchanger for pyromellitic dianhydride, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A heat exchanger for pyromellitic dianhydride, comprising a support base and a heat exchanger, wherein the heat exchanger is arranged on the top of the support base, and a sealing installation assembly is arranged on the left side of the heat exchanger;

[0009] The sealing installation assembly comprises a guide tube arranged on the left side of the heat exchanger, a limit ring is arranged at the right end of the outer wall of the guide tube, a gas inlet pipe is arranged on the left side of the guide tube, a gas inlet pipe is arranged on the top of the gas inlet pipe, an air guide pipe is arranged in the middle of the right side of the gas inlet pipe, a buffer tube is arranged on the right side of the air guide pipe, a protective sleeve is arranged at the left end of the outer wall of the buffer tube, a reinforcement cover is arranged in the middle of the outer wall of the buffer tube, a first sealing ring is arranged at the left end of the inner part of the reinforcement cover, a second sealing ring is arranged at the right end of the outer wall of the reinforcement cover, spoiler mounting rods are arranged on the upper and lower surfaces of the inner part of the guide tube, and heat exchange spoilers are arranged on the inner sides of the two spoiler mounting rods;

[0010] A locking ring is installed on the right side of the heat exchanger, a main air pressure buffer plate is provided at the right end inside the heat exchanger, a raw material air inlet pipe is provided on the right side of the main air pressure buffer plate, a locking disk is installed on the right side of the raw material air inlet pipe, a locking block is installed behind the locking ring, and a raw material air outlet pipe is provided at the right end of the top of the heat exchanger.

[0011] As a preferred solution of the utility model, the heat exchanger and the guide pipe are detachably connected, the limiting ring is sleeved on the right end of the outer wall of the guide pipe and is detachably connected, and the guide pipe and the gas inlet pipe are detachably connected.

[0012] As a preferred solution of the utility model, the gas inlet pipe is detachably connected to the gas intake pipe, and the gas inlet pipe is detachably connected to the air guide pipe.

[0013] As a preferred solution of the utility model, the air guide tube and the buffer tube are detachably connected, the protective sleeve is sleeved on the left end of the outer wall of the buffer tube, and the left end of the inner wall of the protective sleeve contacts the right end of the outer wall of the air guide tube.

[0014] As a preferred solution of the utility model, the reinforcement cover is sleeved on the middle part of the outer wall of the buffer tube, the outer walls of the first sealing ring and the second sealing ring are in contact with the left and right ends of the inner wall of the reinforcement cover, and are detachably connected, and the spoiler mounting rod is detachably connected to the heat exchange spoiler.

[0015] As a preferred solution of the utility model, the heat exchanger is detachably connected to the locking ring, the locking ring is detachably connected to the locking block, the heat exchanger is detachably connected to the main air pressure buffer plate, the main air pressure buffer plate is detachably connected to the raw material air inlet pipe, the raw material air inlet pipe is detachably connected to the locking plate, and the heat exchanger is detachably connected to the raw material air outlet pipe. Beneficial Effects

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. In the utility model, a heat exchanger for isophthalic anhydride is designed, and a spoiler mounting rod is provided to facilitate the installation of a heat exchange spoiler, and the heat exchange spoiler can disturb isophthalic anhydride, and can increase the contact area between isophthalic anhydride and oxygen, thereby increasing the oxidation reaction rate of isophthalic anhydride. After the gas is injected into the pipe by the provided gas inlet pipe, the gas is guided by the air guide pipe and the buffer pipe, the provided protective sleeve seals the connection between the air guide pipe and the buffer pipe, the provided first sealing ring and the provided second sealing ring seal the contact between the reinforcing cover and the outer wall of the buffer pipe, and can improve the use stability of the buffer pipe, and the provided main air pressure buffer plate is used to buffer the air pressure in the heat exchanger, and is locked by the locking disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the main air pressure buffer plate of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the sealing installation component of the utility model.

[0021] In the figure: 1. support seat; 2. heat exchanger; 3. sealing installation assembly; 4. locking ring; 5. locking block; 6. main air pressure buffer plate; 7. raw material air inlet pipe; 8. locking disk; 9. raw material air outlet pipe; 301. limiting ring; 302. guide pipe; 303. gas inlet pipe; 304. gas inlet pipe; 305. air guide pipe; 306. buffer pipe; 307. protective cover; 308. first sealing ring; 309. reinforcement cover; 310. second sealing ring; 311. spoiler mounting rod; 312. heat exchange spoiler. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-3 As shown, a heat exchanger for pyromellitic anhydride comprises a support base 1 and a heat exchanger 2. The heat exchanger 2 is arranged on the top of the support base 1, and a sealing installation assembly 3 is arranged on the left side of the heat exchanger 2.

[0024] The sealing installation assembly 3 includes a guide tube 302 arranged on the left side of the heat exchanger 2, a limit ring 301 is arranged at the right end of the outer wall of the guide tube 302, a gas inlet tube 303 is arranged on the left side of the guide tube 302, a gas inlet tube 304 is arranged on the top of the gas inlet tube 303, a gas guide tube 305 is arranged in the middle of the right side of the gas inlet tube 303, a buffer tube 306 is arranged on the right side of the gas guide tube 305, a protective sleeve 307 is arranged at the left end of the outer wall of the buffer tube 306, a reinforcement cover 309 is arranged in the middle of the outer wall of the buffer tube 306, a first sealing ring 308 is arranged at the left end of the inner part of the reinforcement cover 309, and a second sealing ring 310 is arranged at the right end of the outer wall of the reinforcement cover 309, spoiler mounting rods 311 are installed on the upper and lower surfaces of the inner part of the guide tube 302, and heat exchange spoilers 312 are arranged on the inner sides of the two spoiler mounting rods 311;

[0025] The heat exchanger 2 is detachably connected to the guide tube 302, the limit ring 301 is sleeved on the right end of the outer wall of the guide tube 302 and is detachably connected, the guide tube 302 is detachably connected to the gas inlet tube 303, the gas inlet tube 303 is detachably connected to the gas inlet tube 304, the gas inlet tube 303 is detachably connected to the air guide tube 305, the air guide tube 305 is detachably connected to the buffer tube 306, the protective sleeve 307 is sleeved on the left end of the outer wall of the buffer tube 306, the left end of the inner wall of the protective sleeve 307 contacts the right end of the outer wall of the air guide tube 305, the reinforcement cover 309 is sleeved on the middle part of the outer wall of the buffer tube 306, the outer walls of the first sealing ring 308 and the second sealing ring 310 are both in contact with the left and right ends of the inner wall of the reinforcement cover 309 and are detachably connected, and the spoiler mounting rod 311 is detachably connected to the heat exchange spoiler 312;

[0026] A locking ring 4 is installed on the right side of the heat exchanger 2, a main air pressure buffer plate 6 is installed on the right end inside the heat exchanger 2, a raw material air inlet pipe 7 is installed on the right side of the main air pressure buffer plate 6, a locking plate 8 is installed on the right side of the raw material air inlet pipe 7, a locking block 5 is installed behind the locking ring 4, and a raw material air outlet pipe 9 is installed on the right end of the top of the heat exchanger 2; the heat exchanger 2 and the locking ring 4 are detachably connected, the locking ring 4 and the locking block 5 are detachably connected, the heat exchanger 2 and the main air pressure buffer plate 6 are detachably connected, the main air pressure buffer plate 6 and the raw material air inlet pipe 7 are detachably connected, the raw material air inlet pipe 7 and the locking plate 8 are detachably connected, and the heat exchanger 2 and the raw material air outlet pipe 9 are detachably connected;

[0027] Among them, the spoiler mounting rod 311 is convenient for installing the heat exchange spoiler 312, and the heat exchange spoiler 312 can disturb the flow of isophthalic anhydride, which can increase the contact area between isophthalic anhydride and oxygen, thereby increasing the reaction rate of the oxidation of isophthalic anhydride. The set gas inlet pipe 304 injects gas into the gas entry tube 303, and the gas is guided by the air guide pipe 305 and the buffer tube 306. The set protective sleeve 307 seals the connection between the air guide pipe 305 and the buffer tube 306. The set first sealing ring 308 and the second sealing ring 310 seal the contact between the reinforcement cover 309 and the outer wall of the buffer tube 306, which can improve the stability of the buffer tube 306. The set main air pressure buffer plate 6 is used to buffer the air pressure in the heat exchanger 2, and is locked by the locking disk 8.

[0028] The working process of the utility model: a heat exchanger for isophthalic anhydride designed by the present invention is used. When working, gas is injected into the gas inlet pipe 303 through the gas inlet pipe 304, and the gas guide pipe 305 on the right side of the gas inlet pipe 303 injects the gas into the heat exchanger 2 through the buffer pipe 306 to contact and react with isophthalic anhydride. A plurality of heat exchange spoilers 312 disturb the flow of isophthalic anhydride, which can increase the contact area between isophthalic anhydride and oxygen, thereby increasing the reaction rate of the oxidation of isophthalic anhydride. The protective sleeve 307 can be used to control the gas guide pipe. The connection 1 between 305 and the buffer tube 306 has a sealing connection effect, the reinforcing cover 309 plays a guiding and reinforcing role in the use of the buffer tube 306, the first sealing ring 308 and the second sealing ring 310 improve the connection between the reinforcing cover 309 and the buffer tube 306, and the raw material air inlet pipe 7 injects phthalic acid dianhydride into the heat exchanger 2. After heat exchange in the heat exchanger 2, the gas is discharged through the raw material air outlet pipe 9. The locking plate 8 can lock the raw material air inlet pipe 7 to improve the sealing effect. The main air pressure buffer plate 6 can buffer the argon gas in the heat exchanger 2.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger for pyromellitic anhydride, comprising a support (1), a heat exchanger (2), Features: A heat exchanger (2) is arranged on the top of the support seat (1), and a sealing installation assembly (3) is arranged on the left side of the heat exchanger (2); The sealing installation assembly (3) comprises a guide tube (302) arranged on the left side of the heat exchanger (2); a limit ring (301) is arranged at the right end of the outer wall of the guide tube (302); a gas inlet pipe (303) is arranged on the left side of the guide tube (302); a gas inlet pipe (304) is arranged on the top of the gas inlet pipe (303); a gas guide pipe (305) is arranged in the middle of the right side of the gas inlet pipe (303); a buffer pipe (306) is arranged on the right side of the gas guide pipe (305); A protective sleeve (307) is provided at the left end of the outer wall of the buffer tube (306), a reinforcement cover (309) is provided at the middle of the outer wall of the buffer tube (306), a first sealing ring (308) is provided at the left end inside the reinforcement cover (309), and a second sealing ring (310) is provided at the right end of the outer wall of the reinforcement cover (309), spoiler mounting rods (311) are installed on the upper and lower surfaces inside the guide tube (302), and heat exchange spoilers (312) are provided on the inner sides of the two spoiler mounting rods (311); A locking ring (4) is installed on the right side of the heat exchanger (2), a main air pressure buffer plate (6) is provided at the right end inside the heat exchanger (2), a raw material air inlet pipe (7) is provided on the right side of the main air pressure buffer plate (6), a locking plate (8) is installed on the right side of the raw material air inlet pipe (7), a locking block (5) is installed behind the locking ring (4), and a raw material air outlet pipe (9) is provided at the right end of the top of the heat exchanger (2).

2. A heat exchanger for pyromellitic dianhydride according to claim 1, Features: The heat exchanger (2) and the guide tube (302) are detachably connected, the limiting ring (301) is sleeved on the right end of the outer wall of the guide tube (302) and is detachably connected, and the guide tube (302) and the gas inlet tube (303) are detachably connected.

3. A heat exchanger for pyromellitic dianhydride according to claim 1, Features: The gas inlet pipe (303) and the gas intake pipe (304) are detachably connected, and the gas inlet pipe (303) and the gas guide pipe (305) are detachably connected.

4. A heat exchanger for pyromellitic dianhydride according to claim 1, Features: The air guide tube (305) and the buffer tube (306) are detachably connected, the protective sleeve (307) is sleeved on the left end of the outer wall of the buffer tube (306), and the left end of the inner wall of the protective sleeve (307) contacts the right end of the outer wall of the air guide tube (305).

5. A heat exchanger for pyromellitic dianhydride according to claim 1, Features: The reinforcement cover (309) is sleeved on the middle part of the outer wall of the buffer tube (306); the outer walls of the first sealing ring (308) and the second sealing ring (310) are in contact with the left and right ends of the inner wall of the reinforcement cover (309) and are detachably connected; the spoiler mounting rod (311) is detachably connected to the heat exchange spoiler (312).

6. A heat exchanger for pyromellitic dianhydride according to claim 1, Features: The heat exchanger (2) is detachably connected to the locking ring (4), the locking ring (4) is detachably connected to the locking block (5), the heat exchanger (2) is detachably connected to the main air pressure buffer plate (6), the main air pressure buffer plate (6) is detachably connected to the raw material air inlet pipe (7), the raw material air inlet pipe (7) is detachably connected to the locking plate (8), and the heat exchanger (2) is detachably connected to the raw material air outlet pipe (9).

Images