Self-cleaning four-fluorine heat exchanger with backwashing

Abstract

The utility model discloses a kind of self-cleaning four fluorine heat exchangers with backwashing, the utility model relates to heat exchanger technical field.This self-cleaning four fluorine heat exchanger with backwashing, including shell, the inside of shell is provided with guide assembly, the top of shell is provided with pressure relief assembly, the guide assembly includes the guide plate of fixed mounting in the inside of shell, the inner bottom wall of shell is fixedly installed with baffle, the bottom of shell is connected with cover, the bottom of cover is connected with backwashing pipe, the side of shell is connected with water inlet pipe, the other side of shell is connected with water outlet pipe, the utility model is conveniently guided to water operation by being set up guide assembly, in the process of using, it is also convenient to carry out backwashing operation to it in the process of using subsequently, so that the use convenience of the heat exchanger will be improved in the process of using subsequently, the use efficiency of the heat exchanger is improved, and subsequent normal operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a self-cleaning PTFE heat exchanger with backflushing. Background Technology

[0002] A heat exchanger is a device that transfers part of the heat from a hot fluid to a cold fluid. It is also called a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used. For example, low-temperature polytetrafluoroethylene (PTFE) heat exchangers for power plants are new types of equipment used in power plants to reduce flue gas temperature and recover waste heat. Using fluoroplastic heat exchangers can prevent acid corrosion and reduce flue gas temperature to below 100 degrees Celsius. Zhengzhou University of Technology successfully developed a "limited expansion pressure heating welding" process for PTFE (F-4) tube sheets, solving the key technology of connecting fluoroplastic tubes to tube sheets. Subsequently, various types of domestically produced heat exchangers have been put into practical production and application with good results. Existing patent, patent publication number CN110345780A, discloses a heat exchanger comprising: a heat exchange assembly, which includes: multiple heat exchange tubes through which the heat exchange medium flows and connecting pieces connecting adjacent heat exchange tubes. Heat exchangers using embodiments of this disclosure can, for example, save energy and improve heat exchange efficiency.

[0003] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: backwashing is inconvenient in practical applications, which reduces the ease of use of the heat exchanger, affects its efficiency, and hinders normal operation. Therefore, we propose a self-cleaning PTFE heat exchanger with backwashing to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a self-cleaning PTFE heat exchanger with backflushing, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a self-cleaning PTFE heat exchanger with backflushing, comprising a shell, wherein a guide assembly is provided inside the shell, and a pressure relief assembly is provided at the top of the shell.

[0006] The guiding assembly includes a guide plate fixedly installed inside the housing, a baffle plate fixedly installed on the inner bottom wall of the housing, a cover connected to the bottom of the housing, a backwash pipe connected to the bottom of the cover, a water inlet pipe connected to one side of the housing, and a water outlet pipe connected to the other side of the housing. The guiding assembly facilitates water guidance during use and also facilitates backwashing operations during subsequent use, thereby improving the ease of use and efficiency of the heat exchanger and facilitating normal operation.

[0007] The pressure relief assembly includes a vertical pipe connected to the top of the shell. A return spring is fixedly installed on the inner bottom wall of the vertical pipe, and a piston block is fixedly installed on the top of the return spring. A round rod is fixedly installed on the top of the vertical pipe, and a baffle is fixedly installed on the top of the round rod. The pressure relief assembly facilitates the control of the pressure inside the heat exchanger during use, and also facilitates pressure relief operations during subsequent use, thereby preventing excessive pressure during subsequent use, improving the ease of use of the heat exchanger, and thus improving its efficiency.

[0008] Preferably, the guide plate is set in an inclined state with an inclination angle of - degrees, and the baffle plate is set in an inclined state with the top of the baffle plate being higher than the bottom of the guide plate. The inclined state of the guide plate and the baffle plate facilitates the guiding operation of the liquid during use, thereby facilitating subsequent use and improving the ease of use of the heat exchanger.

[0009] Preferably, the guide plate is set in an inclined state, and the inclination angle of the guide plate is 15-30 degrees; the flow barrier is set in an inclined state, and the top of the flow barrier is higher than the bottom of the guide plate.

[0010] Preferably, the top of the housing is provided with a cover, the bottom of the cover fits against the top of the housing, and bolts are inserted at the four corners of the top of the cover. The bottom of the bolts is threaded to the top of the housing. The cover and bolts facilitate sealing of the top of the housing during use, thereby increasing the sealing performance of the top of the housing and facilitating subsequent use, thus improving the sealing performance of the component.

[0011] Preferably, the cover has a screw hole for the bolt to pass through, the screw hole is threaded to the bolt, and the bottom of the bolt nut fits against the top of the cover. The screw hole facilitates the passage of the bolt during use, thereby facilitating the tightening operation during subsequent use and ensuring normal operation.

[0012] Preferably, the water outlet pipe is located on one side of the guide plate, and one side of the guide plate is aligned with one end of the water outlet pipe. One end of the water inlet pipe is located on one side of the baffle plate, and the top height of the baffle plate is lower than the height of one end of the water inlet pipe.

[0013] Preferably, the cover is located between the guide plate and the baffle plate, and the width of the cover is the same as the width of the shell. Beneficial effects

[0014] This invention provides a self-cleaning PTFE heat exchanger with backflushing capability. Compared with the prior art, it has the following advantages:

[0015] This self-cleaning PTFE heat exchanger with backwashing feature facilitates water guidance during use through its guide components, and also makes it easy to perform backwashing operations later on. This improves the ease of use and efficiency of the heat exchanger, and facilitates normal operation.

[0016] Meanwhile, the pressure relief component facilitates pressure control within the heat exchanger during use, allowing for easy pressure relief during subsequent operations. This prevents excessive pressure during use, improving the ease of use and efficiency of the heat exchanger. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a first-view three-dimensional cross-sectional structural diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the second-view stereoscopic cross-sectional structure of the present invention.

[0020] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Housing; 2. Guide assembly; 200. Bolt; 201. Guide plate; 202. Baffle plate; 203. Cover; 204. Backwash pipe; 205. Inlet pipe; 206. Outlet pipe; 207. Cover; 3. Pressure relief assembly; 300. Vertical pipe; 301. Return spring; 302. Piston block; 303. Round rod; 304. Baffle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution: a self-cleaning PTFE heat exchanger with backflushing, including a shell 1, a guide assembly 2 inside the shell 1, and a pressure relief assembly 3 on the top of the shell 1.

[0024] The guide assembly 2 includes a guide plate 201 fixedly installed inside the housing 1, a baffle plate 202 fixedly installed on the inner bottom wall of the housing 1, a cover 203 connected to the bottom of the housing 1, a backwash pipe 204 connected to the bottom of the cover 203, a water inlet pipe 205 connected to one side of the housing 1, and a water outlet pipe 206 connected to the other side of the housing 1. The guide assembly 2 facilitates water guidance during use and also facilitates backwashing during subsequent use, thereby improving the ease of use and efficiency of the heat exchanger and facilitating normal operation.

[0025] The pressure relief assembly 3 includes a vertical pipe 300 connected to the top of the housing 1. A return spring 301 is fixedly installed on the inner bottom wall of the vertical pipe 300. A piston block 302 is fixedly installed on the top of the return spring 301. A round rod 303 is fixedly installed on the top of the vertical pipe 300. A baffle 304 is fixedly installed on the top of the round rod 303. The pressure relief assembly 3 facilitates the control of the pressure inside the heat exchanger during use, and also facilitates the pressure relief operation during subsequent use, thereby avoiding excessive pressure during subsequent use, improving the ease of use of the heat exchanger, and thus improving the efficiency of the heat exchanger.

[0026] See Figure 3 The guide plate 201 is set in an inclined state with an inclination angle of 15-30 degrees. The baffle plate 202 is also set in an inclined state with its top higher than the bottom of the guide plate 201. The inclined state of the guide plate 201 and the baffle plate 202 facilitates the guiding operation of the liquid during use, thereby improving the ease of use of the heat exchanger and making it more convenient for subsequent use.

[0027] See Figure 3The guide plate 201 is set to an inclined state, and the inclination angle of the guide plate 201 is 15-30 degrees. The flow deflector 202 is set to an inclined state, and the top of the flow deflector 202 is higher than the bottom height of the guide plate 201.

[0028] See Figure 2 The top of the housing 1 is provided with a cover 207. The bottom of the cover 207 fits against the top of the housing 1. Bolts 200 are inserted into the four corners of the top of the cover 207. The bottom of the bolts 200 is threaded to the top of the housing 1. The cover 207 and bolts 200 facilitate sealing of the top of the housing 1 during use, thereby increasing the sealing performance of the top of the housing 1 and facilitating subsequent use, thus improving the sealing performance of the component.

[0029] See Figure 2 The cover 207 has a screw hole for the bolt 200 to pass through. The screw hole is threaded to the bolt 200. The bottom of the nut of the bolt 200 fits against the top of the cover 207. The screw hole facilitates the passage of the bolt 200 during use, thus facilitating the tightening operation during subsequent use and ensuring normal use.

[0030] See Figure 3 The water outlet pipe 206 is located on one side of the guide plate 201, and one side of the inclined surface of the guide plate 201 is aligned with one end of the water outlet pipe 206. One end of the water inlet pipe 205 is located on one side of the baffle plate 202, and the top height of the baffle plate 202 is lower than the height of one end of the water inlet pipe 205.

[0031] See Figure 3 The cover 203 is located between the guide plate 201 and the baffle plate 202, and the width of the cover 203 is the same as the width of the shell 1.

[0032] During operation, the guide component 2 facilitates water guidance and backwashing, thus improving the ease of use and efficiency of the heat exchanger. The pressure relief component 3 controls the pressure within the heat exchanger and allows for pressure relief to prevent excessive pressure, further enhancing usability and efficiency.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A self-cleaning PTFE heat exchanger with backflushing, comprising a shell (1), characterized in that: The housing (1) is provided with a guide assembly (2) inside and a pressure relief assembly (3) is provided on the top of the housing (1). The guide assembly (2) includes a guide plate (201) fixedly installed inside the housing (1), a baffle plate (202) fixedly installed on the inner bottom wall of the housing (1), a cover (203) connected to the bottom of the housing (1), a backwash pipe (204) connected to the bottom of the cover (203), a water inlet pipe (205) connected to one side of the housing (1), and a water outlet pipe (206) connected to the other side of the housing (1). The pressure relief assembly (3) includes a vertical tube (300) connected to the top of the housing (1), a return spring (301) is fixedly installed on the inner bottom wall of the vertical tube (300), a piston block (302) is fixedly installed on the top of the return spring (301), a round rod (303) is fixedly installed on the top of the vertical tube (300), and a baffle (304) is fixedly installed on the top of the round rod (303).

2. A self-cleaning PTFE heat exchanger with backflushing according to claim 1, characterized in that: The guide plate (201) is set to an inclined state, and the inclination angle of the guide plate (201) is 15-30 degrees. The flow barrier (202) is set to an inclined state, and the top of the flow barrier (202) is higher than the bottom height of the guide plate (201).

3. A self-cleaning PTFE heat exchanger with backflushing according to claim 1, characterized in that: The surface of the piston block (302) is slidably connected to the inner wall of the vertical tube (300), and the piston block (302) is adapted to the vertical tube (300), and the piston block (302) is made of rubber.

4. A self-cleaning PTFE heat exchanger with backflushing according to claim 1, characterized in that: The top of the housing (1) is provided with a cover (207), the bottom of the cover (207) is attached to the top of the housing (1), and bolts (200) are inserted at the four corners of the top of the cover (207), and the bottom of the bolts (200) is threaded to the top of the housing (1).

5. A self-cleaning PTFE heat exchanger with backflushing according to claim 4, characterized in that: The cover (207) has a screw hole for the bolt (200) to pass through. The screw hole is threadedly connected to the bolt (200), and the bottom of the nut of the bolt (200) fits against the top of the cover (207).

6. A self-cleaning PTFE heat exchanger with backflushing according to claim 1, characterized in that: The outlet pipe (206) is located on one side of the guide plate (201), and one side of the guide plate (201) is aligned with one end of the outlet pipe (206). One end of the inlet pipe (205) is located on one side of the baffle plate (202), and the top height of the baffle plate (202) is lower than the height of one end of the inlet pipe (205).

7. A self-cleaning PTFE heat exchanger with backflushing according to claim 1, characterized in that: The cover (203) is located between the guide plate (201) and the baffle plate (202), and the width of the cover (203) is the same as the width of the shell (1).

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