Heat exchange device for isooctane production

Abstract

The utility model relates to the technical field of isooctane production, and provides a heat exchange device for isooctane production, which comprises a heat exchange box body, a heat exchange tube pass is fixedly embedded on one opposite side of the inner wall of the heat exchange box body, an inlet is arranged at one end of the heat exchange tube pass, an outlet is arranged at the other end of the heat exchange tube pass, and the heat exchange device further comprises a reciprocating screw rod, and the heat exchanger is movably embedded in the opposite side of the inner wall of the heat exchange box body. According to the utility model, the motor is controlled by the controller to start, so that the output shaft of the motor drives the reciprocating screw rod to rotate, the threaded block can reciprocate along the outer surface of the reciprocating screw rod and synchronously drive the connecting strip and the scraping ring to reciprocate, and condensate on the surface of the heat exchange tube pass branch tube is scraped off through the scraping ring; in this way, in the long-time using process of the heat exchange device, water scales can be prevented from being generated on the surfaces of the heat exchange tube pass branch pipes, hot steam can make full contact with the heat exchange tube pass branch pipes, and therefore the heat exchange efficiency of media in the heat exchange tube pass and the hot steam is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of isooctane production, in particular to a heat exchange device for isooctane production. Background Art

[0002] With the rapid development of the fine chemical industry and the continuous application of biochemistry technology, isooctane will be widely used in the biomedical and chemical industries. Isooctane has a large market demand, and the isooctane market has generally been in a state of supply falling short of demand in recent years.

[0003] In the prior art, as disclosed in Chinese Patent Publication No.: CN220708202U, a heat exchange device for isooctane production and processing is disclosed, which includes a heat exchange installation housing. Inside the heat exchange installation housing, there is a medium heat exchange component. On one side of the medium heat exchange component, there is an intelligent heat exchange control component. Inside the heat exchange installation housing, there is a condensate discharge component. The utility model has made improvements to the prior art. In actual use, not only can the hot gas generated during the isooctane reaction be recovered and heat exchanged, but also through the intelligent heat exchange control component, the problem that the hot gas inside the current isooctane production device is not discharged in time is solved. When water droplets generated by the solidification of the hot gas at the top of the reaction tank drip into the reaction tank, it will affect the reaction quality of isooctane. When the hot gas is discharged too fast, too much heat will be dissipated, affecting the reaction speed.

[0004] Although the above solution has the above advantages, the disadvantage of the above solution is that although it can detect the condensate liquid level in the heat exchange installation housing by setting a liquid level sensor, when the condensate liquid level is relatively high, the liquid level sensor starts the condensate discharge valve through the PLC controller, so that the condensate can pass through the condensate discharge pipe. However, during the use of its heat exchange device, when the medium exchanges heat with the hot steam through the heat exchange tube pass, condensate will be generated. During long-term use, scale is likely to form on the surface of the heat exchange tube pass, thereby affecting the heat exchange efficiency between the medium inside the heat exchange tube pass and the hot steam. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem existing in the prior art that although it can detect the condensate liquid level in the heat exchange installation housing by setting a liquid level sensor, when the condensate liquid level is relatively high, the liquid level sensor starts the condensate discharge valve through the PLC controller, so that the condensate can pass through the condensate discharge pipe. However, during the use of its heat exchange device, when the medium exchanges heat with the hot steam through the heat exchange tube pass, condensate will be generated. During long-term use, scale is likely to form on the surface of the heat exchange tube pass, thereby affecting the heat exchange efficiency between the medium inside the heat exchange tube pass and the hot steam.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A heat exchange device for isooctane production, comprising: a heat exchange box body, on the opposite sides of the inner wall of the heat exchange box body, a heat exchange tube pass is fixedly embedded, one end of the heat exchange tube pass is provided with an inlet, and the other end of the heat exchange tube pass is provided with a discharge port. It further comprises:

[0007] A reciprocating lead screw, which is movably embedded on the opposite sides of the inner wall of the heat exchange box body. One side of the heat exchange box body is fixedly installed with a motor, and the output end of the motor is fixedly installed at one end of the reciprocating lead screw. A threaded block is sleeved on the outer surface of the reciprocating lead screw, and connecting bars are fixedly installed around the threaded block. One end of each of the plurality of connecting bars is fixedly installed with a scraping ring, and the outer surfaces of the plurality of scraping rings are respectively movably sleeved on the outer surfaces of the branch pipes of the heat exchange tube pass.

[0008] Preferably, a plurality of guide rods are fixedly installed on the opposite sides of the inner wall of the heat exchange box body in a circumferential array. The outer surfaces of the plurality of guide rods are respectively movably embedded at the centers of the plurality of connecting bars. Through the arrangement of the guide rods, a certain limiting and guiding effect is achieved.

[0009] Preferably, a high-pressure blower is fixedly installed on the top of the heat exchange box body. A gas transmission pipe is fixedly embedded at the center of the top of the heat exchange box body. One end of the gas transmission pipe is fixedly installed at the air outlet end of the high-pressure blower, and the other end of the gas transmission pipe is communicated with the inside of the heat exchange box body. A check valve II is fixedly embedded on the inner wall of the gas transmission pipe close to the heat exchange box body. By controlling the high-pressure blower to start through a controller, hot air is conveyed into the gas transmission pipe. Since the opening direction of the check valve II is from the high-pressure blower towards the inside of the heat exchange box body, under the action of gas pressure, the check valve II is opened, and the hot air enters the inside of the heat exchange box body to perform a drying treatment on the inside of the heat exchange box body.

[0010] Preferably, an air inlet pipe is fixedly embedded at one end of the bottom of the heat exchange box body. One end of the air inlet pipe is communicated with the inside of the heat exchange box body. A check valve I is fixedly embedded on the inner wall of the air inlet pipe close to the heat exchange box body. By allowing hot steam to enter the inside of the heat exchange box body through the air inlet pipe, the hot steam contacts the surface of the branch pipe of the heat exchange tube pass for heat exchange. Through the arrangement of the check valve I, and the opening direction of the check valve I is from the outside towards the inside of the heat exchange box body, the situation of backflow can be avoided.

[0011] Preferably, an exhaust pipe is fixedly installed at one end of the top of the heat exchange box body. One end of the exhaust pipe is communicated with the inside of the heat exchange box body. A flow control valve is fixedly embedded on the inner wall of the exhaust pipe close to the heat exchange box body. By controlling the closing or opening of the flow control valve through a controller, it is convenient to control the discharge of the gas inside the heat exchange box body through the exhaust pipe.

[0012] Preferably, the other end of the bottom of the heat exchange box body is fixedly embedded with a drain pipe. One end of the drain pipe is communicated with the inside of the heat exchange box body. An electromagnetic valve is fixedly embedded on the drain pipe close to the inner wall of the heat exchange box body. The electromagnetic valve is controlled by a controller to open, so that the condensate is discharged through the drain pipe.

[0013] Preferably, a temperature sensor is fixedly embedded at the top of the heat exchange box body near the center. One end of the temperature sensor extends into the heat exchange box body. A pressure sensor is fixedly embedded at the top of the heat exchange box body near the center. One end of the pressure sensor extends into the heat exchange box body. By arranging the temperature sensor and the pressure sensor, it is convenient to detect the temperature and air pressure inside the heat exchange box body.

[0014] Preferably, a liquid level sensor is fixedly embedded at the top of the heat exchange box body away from the high-pressure blower. One end of the liquid level sensor extends into the heat exchange box body. By arranging the liquid level sensor, it is convenient to detect the water level of the condensate inside the heat exchange box body.

[0015] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0016] 1. In the present utility model, the controller controls the motor to start, so that its output shaft drives the reciprocating screw rod to rotate. Then, under the interaction of the reciprocating screw rod and the threaded block in threaded cooperation, and with the cooperation of the guide rod for limiting and guiding the connecting bar, the threaded block can move reciprocally along the outer surface of the reciprocating screw rod, synchronously driving the connecting bar and the scraping ring to move reciprocally. The condensate on the surface of the heat exchange tube process branch pipe is scraped off by the scraping ring, so that the condensate drops from the surface of the heat exchange tube process branch pipe. In this way, during the long-term use of this heat exchange device, scale formation on the surface of the heat exchange tube process branch pipe can be avoided, and the hot steam can be in full contact with the heat exchange tube process branch pipe, thereby ensuring the heat exchange efficiency between the medium inside the heat exchange tube process and the hot steam.

[0017] 2. In the present utility model, the controller controls the electromagnetic valve to open to discharge the condensate inside the heat exchange box body. Then, the controller controls the flow control valve to open, so that the gas inside the heat exchange box body can be discharged through the exhaust pipe. Then, the controller controls the high-pressure blower to start, and conveys hot air into the air delivery pipe. Since the opening direction of the check valve II is from the high-pressure blower towards the inside of the heat exchange box body, under the action of gas pressure, the check valve II is opened, and the hot air enters the inside of the heat exchange box body to perform a drying treatment on the inside of the heat exchange box body. The moisture on the inner wall of the heat exchange box body, the surface of the heat exchange tube process support rod, and the surfaces of other components inside the heat exchange box body can be dried. In this way, rusting on the inner wall of the heat exchange box body, the surface of the heat exchange tube process support rod, and the surfaces of other components inside the heat exchange box body can be avoided, thereby improving the service life of this heat exchange device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Structural schematic diagram of a heat exchange device for isooctane production provided by the present utility model;

[0019] Figure 2 Side view structural schematic diagram of a heat exchange device for isooctane production provided by the present utility model;

[0020] Figure 3 Front cross-sectional structural schematic diagram of a heat exchange device for isooctane production provided by the present utility model;

[0021] Figure 4 Lateral cross-sectional structural schematic diagram of a heat exchange device for isooctane production provided by the present utility model.

[0022] Legend description:

[0023] 1. Heat exchange box body; 101. Heat exchange tube pass; 102. Inlet gas pipe; 103. Check valve 1; 104. Exhaust pipe; 105. Flow control valve; 106. Temperature sensor; 107. Pressure sensor; 108. Liquid level sensor; 109. Drain pipe; 110. Solenoid valve; 2. High-pressure blower; 201. Gas transmission pipe; 202. Check valve 2; 3. Motor; 301. Reciprocating lead screw; 302. Threaded block; 303. Connecting bar; 304. Scraping ring; 305. Guide rod. Specific implementation manners

[0024] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0026] Example 1, as Figures 1 to 4As shown in the figure, the utility model provides a heat exchange device for isooctane production, including: a heat exchange box body 1, in which a heat exchange tube pass 101 is fixedly embedded on the opposite sides of the inner wall of the heat exchange box body 1. One end of the heat exchange tube pass 101 is provided with an inlet, and the other end of the heat exchange tube pass 101 is provided with an outlet. It also includes: a reciprocating lead screw 301, which is movably embedded on the opposite sides of the inner wall of the heat exchange box body 1. One side of the heat exchange box body 1 is fixedly installed with a motor 3, and the output end of the motor 3 is fixedly installed at one end of the reciprocating lead screw 301. A threaded block 302 is sleeved on the outer surface of the reciprocating lead screw 301. Connecting bars 303 are fixedly installed around the threaded block 302. One ends of multiple connecting bars 303 are all fixedly installed with scraping rings 304. The outer surfaces of multiple scraping rings 304 are respectively movably sleeved on the outer surfaces of the branch pipes of the heat exchange tube pass 101. Multiple guide rods 305 are fixedly installed in a circumferential array on the opposite sides of the inner wall of the heat exchange box body 1. The outer surfaces of multiple guide rods 305 are respectively movably embedded at the centers of multiple connecting bars 303. One end of the intake pipe 102 is fixedly embedded at one end of the bottom of the heat exchange box body 1, and one end of the intake pipe 102 is communicated with the inside of the heat exchange box body 1. A check valve 103 is fixedly embedded on the inner wall of the intake pipe 102 close to the heat exchange box body 1. One end of the exhaust pipe 104 is fixedly installed at one end of the top of the heat exchange box body 1, and one end of the exhaust pipe 104 is communicated with the inside of the heat exchange box body 1. A flow control valve 105 is fixedly embedded on the inner wall of the exhaust pipe 104 close to the heat exchange box body 1. One end of the drain pipe 109 is fixedly embedded at the other end of the bottom of the heat exchange box body 1, and one end of the drain pipe 109 is communicated with the inside of the heat exchange box body 1. A solenoid valve 110 is fixedly embedded on the inner wall of the drain pipe 109 close to the heat exchange box body 1. A temperature sensor 106 is fixedly embedded at the top of the heat exchange box body 1 near the center, and one end of the temperature sensor 106 extends into the inside of the heat exchange box body 1. A pressure sensor 107 is fixedly embedded at the top of the heat exchange box body 1 near the center, and one end of the pressure sensor 107 extends into the inside of the heat exchange box body 1. A liquid level sensor 108 is fixedly embedded at the top of the heat exchange box body 1 far from the high-pressure blower 2, and one end of the liquid level sensor 108 extends into the inside of the heat exchange box body 1.

[0027] In this embodiment, hot steam enters the interior of the heat exchange box body 1 through the air inlet pipe 102, and the hot steam contacts the surface of the branch pipe of the heat exchange tube process 101 for heat exchange. The temperature and air pressure inside the heat exchange box body 1 are detected by the temperature sensor 106 and the pressure sensor 107. The controller controls the closing or opening of the flow control valve 105, which facilitates controlling the discharge of the gas inside the heat exchange box body 1 through the exhaust pipe 104. The temperature and air pressure inside the heat exchange box body 1 can be controlled. Through the setting of the check valve 1 103, and the opening direction of the check valve 1 103 is from the outside towards the interior of the heat exchange box body 1, the occurrence of backflow can be avoided. When the liquid level sensor 108 detects that the condensate water level inside the heat exchange box body 1 reaches a certain value, the controller can control the solenoid valve 110 to open, enabling the condensate to be discharged through the drain pipe 109. When this heat exchange device is in use, the controller controls the motor 3 to start, and its output shaft drives the reciprocating lead screw 301 to rotate. Then, under the interaction of the threaded engagement between the reciprocating lead screw 301 and the threaded block 302, and with the cooperation of the guide rod 305 for limiting and guiding the connecting bar 303, the threaded block 302 can reciprocate along the outer surface of the reciprocating lead screw 301, synchronously driving the connecting bar 303 and the scraping ring 304 to reciprocate. The condensate on the surface of the branch pipe of the heat exchange tube process 101 is scraped off by the scraping ring 304, causing the condensate to fall from the surface of the branch pipe of the heat exchange tube process 101. In this way, during the long-term use of this heat exchange device, scale formation on the surface of the branch pipe of the heat exchange tube process 101 can be avoided, and the hot steam can be in full contact with the branch pipe of the heat exchange tube process 101, thereby ensuring the heat exchange efficiency between the medium inside the heat exchange tube process 101 and the hot steam.

[0028] Embodiment 2, as Figures 1 to 4 shown, a high-pressure blower 2 is fixedly installed at the top of the heat exchange box body 1. A gas transmission pipe 201 is fixedly embedded at the center of the top of the heat exchange box body 1. One end of the gas transmission pipe 201 is fixedly installed at the air outlet end of the high-pressure blower 2, and the other end of the gas transmission pipe 201 is communicated with the interior of the heat exchange box body 1. A check valve 2 202 is fixedly embedded near the inner wall of the heat exchange box body 1 on the gas transmission pipe 201.

[0029] In this embodiment, when the heat exchange device is closed, the controller controls the solenoid valve 110 to open to discharge the condensate inside the heat exchange box body 1. Then, the controller controls the flow control valve 105 to open so that the gas inside the heat exchange box body 1 can be discharged through the exhaust pipe 104. Next, the controller controls the high-pressure blower 2 to start and conveys hot air into the air delivery pipe 201. Since the opening direction of the check valve II 202 is from the high-pressure blower 2 towards the inside of the heat exchange box body 1, under the action of gas pressure, the check valve II 202 is opened, and the hot air enters the inside of the heat exchange box body 1 to dry the inside of the heat exchange box body 1. The moisture on the inner wall of the heat exchange box body 1, the surface of the support rods of the heat exchange tube pass 101, and the surfaces of other components inside the heat exchange box body 1 can be dried, which can avoid rusting on the inner wall of the heat exchange box body 1, the surface of the support rods of the heat exchange tube pass 101, and the surfaces of other components inside the heat exchange box body 1, thereby prolonging the service life of this heat exchange device.

[0030] Working principle: When in use, hot steam enters the interior of the heat exchange box body 1 through the intake pipe 102, and the hot steam contacts the surface of the branch pipes of the heat exchange tube pass 101 for heat exchange. The temperature sensor 106 and the pressure sensor 107 are used to detect the temperature and air pressure inside the heat exchange box body 1. The controller controls the closing or opening of the flow control valve 105, facilitating the control of the gas inside the heat exchange box body 1 to be discharged through the exhaust pipe 104, and the temperature and air pressure inside the heat exchange box body 1 can be controlled. Through the setting of the check valve 1 103, and the opening direction of the check valve 1 103 is from the outside towards the interior of the heat exchange box body 1, the situation of backflow can be avoided. When the liquid level sensor 108 detects that the condensate water level inside the heat exchange box body 1 reaches a certain value, the controller can control the solenoid valve 110 to open, enabling the condensate to be discharged through the drain pipe 109. When this heat exchange device is in use, the controller controls the motor 3 to start, and its output shaft drives the reciprocating lead screw 301 to rotate. Then, under the interaction of the threaded fit between the reciprocating lead screw 301 and the threaded block 302, and with the cooperation of the guide rod 305 for limiting and guiding the connecting bar 303, the threaded block 302 can reciprocate along the outer surface of the reciprocating lead screw 301, synchronously driving the connecting bar 303 and the scraping ring 304 to reciprocate. The condensate on the surface of the branch pipes of the heat exchange tube pass 101 is scraped off by the scraping ring 304, causing the condensate to fall from the surface of the branch pipes of the heat exchange tube pass 101. In this way, during the long-term use of this heat exchange device, scale formation on the surface of the branch pipes of the heat exchange tube pass 101 can be avoided, enabling the hot steam to fully contact the branch pipes of the heat exchange tube pass 101, thereby ensuring the heat exchange efficiency between the medium inside the heat exchange tube pass 101 and the hot steam. When this heat exchange device is turned off, at this time, the controller controls the solenoid valve 110 to open to discharge the condensate inside the heat exchange box body 1, and then the controller controls the flow control valve 105 to open, enabling the gas inside the heat exchange box body 1 to be discharged through the exhaust pipe 104. Then, the controller controls the high-pressure blower 2 to start, and hot air is conveyed into the air delivery pipe 201. Since the opening direction of the check valve 2 202 is from the high-pressure blower 2 towards the interior of the heat exchange box body 1, under the action of gas pressure, the check valve 2 202 is opened, allowing the hot air to enter the interior of the heat exchange box body 1 for drying treatment of the interior of the heat exchange box body 1. The moisture on the inner wall of the heat exchange box body 1, the surface of the support rods of the heat exchange tube pass 101, and the surfaces of other components inside the heat exchange box body 1 can be dried, thus avoiding rust on the inner wall of the heat exchange box body 1, the surface of the support rods of the heat exchange tube pass 101, and the surfaces of other components inside the heat exchange box body 1, thereby extending the service life of this heat exchange device.

[0031] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A heat exchange device for isooctane production, comprising: A heat exchange box (1), wherein a heat exchange tube (101) is fixedly embedded on one opposite side of the inner wall of the heat exchange box (1), an inlet is provided at one end of the heat exchange tube (101), and an outlet is provided at the other end of the heat exchange tube (101), characterized in that it also includes: A reciprocating screw (301) is movably embedded in an opposite side of the inner wall of the heat exchange box (1); a motor (3) is fixedly mounted on one side of the heat exchange box (1); an output end of the motor (3) is fixedly mounted on one end of the reciprocating screw (301); a threaded block (302) is threadedly sleeved on the outer surface of the reciprocating screw (301); connecting strips (303) are fixedly mounted around the four sides of the threaded block (302); a plurality of connecting strips (303) are fixedly mounted on one end of each of the scraper rings (304); and the outer surfaces of the plurality of scraper rings (304) are movably sleeved on the outer surfaces of the branch pipes of the heat exchange tube (101).

2. A heat exchange device for isooctane production according to claim 1, characterized in that: A plurality of guide rods (305) are fixedly mounted in a circular array on the opposite side of the inner wall of the heat exchange box body (1), and the outer surfaces of the plurality of guide rods (305) are movably embedded in the centers of the plurality of connecting strips (303).

3. A heat exchange device for isooctane production according to claim 2, characterized in that: A high-pressure blower (2) is fixedly mounted on the top of the heat exchange box (1); an air supply pipe (201) is fixedly embedded in the center of the top of the heat exchange box (1); one end of the air supply pipe (201) is fixedly mounted on the air outlet end of the high-pressure blower (2); the other end of the air supply pipe (201) is connected to the interior of the heat exchange box (1); and a second one-way valve (202) is fixedly embedded in the air supply pipe (201) close to the inner wall of the heat exchange box (1).

4. A heat exchange device for isooctane production according to claim 3, characterized in that: An air intake pipe (102) is fixedly embedded at one end of the bottom of the heat exchange box (1), one end of the air intake pipe (102) is connected to the interior of the heat exchange box (1), and a one-way valve (103) is fixedly embedded on the inner wall of the air intake pipe (102) close to the heat exchange box (1).

5. A heat exchange device for isooctane production according to claim 4, characterized in that: An exhaust pipe (104) is fixedly mounted on one end of the top of the heat exchange box (1), one end of the exhaust pipe (104) is connected to the interior of the heat exchange box (1), and a flow control valve (105) is fixedly embedded on the exhaust pipe (104) near the inner wall of the heat exchange box (1).

6. A heat exchange device for isooctane production according to claim 5, characterized in that: A drain pipe (109) is fixedly embedded at the other end of the bottom of the heat exchange box (1), one end of the drain pipe (109) is connected to the interior of the heat exchange box (1), and a solenoid valve (110) is fixedly embedded in the drain pipe (109) close to the inner wall of the heat exchange box (1).

7. A heat exchange device for isooctane production according to claim 6, characterized in that: A temperature sensor (106) is fixedly embedded in the top of the heat exchange box (1) near the center, and one end of the temperature sensor (106) extends into the interior of the heat exchange box (1). A pressure sensor (107) is fixedly embedded in the top of the heat exchange box (1) near the center, and one end of the pressure sensor (107) extends into the interior of the heat exchange box (1).

8. A heat exchange device for isooctane production according to claim 7, characterized in that: A liquid level sensor (108) is fixedly embedded on the top of the heat exchange box (1) away from the high-pressure blower (2), and one end of the liquid level sensor (108) extends into the interior of the heat exchange box (1).

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