Round block hole type graphite heat exchanger

Abstract

The utility model relates to a round block hole type graphite heat exchanger which comprises a heat exchanger body, a cleaning mechanism and a heat exchange filtering mechanism are arranged in the heat exchanger body, the cleaning mechanism comprises connecting pipes, the connecting pipes are arranged on the left side and the right side of the heat exchanger body, and the left side of one connecting pipe is fixedly connected with a motor. The output end of the motor is fixedly connected with one end of a rotating rod, the outer wall of the rotating rod is fixedly connected with a brush plate, the other end of the rotating rod is fixedly connected with a reciprocating lead screw, and the reciprocating lead screw is arranged on the inner wall of the heat exchanger body. According to the heat exchanger, the cleaning mechanism is arranged to clean the filter screen, excessive impurities are prevented from being attached to the surface of the filter screen to affect the filtering effect, the inner wall of the heat exchanger body and the outer walls of the heat exchange pipes can be cleaned, and then the impurities can be prevented from being attached to the inner wall of the heat exchanger body; impurities can be prevented from being attached to the outer wall of the heat exchange pipe to affect the heat exchange effect.

Description

Technical Field

[0001] This utility model relates to the field of graphite heat exchangers, and more particularly to a circular block perforated graphite heat exchanger. Background Technology

[0002] In many industrial production fields such as chemical, metallurgical, and pharmaceutical industries, heat exchange is a crucial process. The circular block graphite heat exchanger, with its excellent corrosion resistance, high thermal conductivity, and low coefficient of thermal expansion, has become an ideal device for heat exchange operations involving corrosive media.

[0003] In existing technologies, circular perforated graphite heat exchangers primarily work by allowing hot and cold fluids to flow in separate channels. Utilizing the thermal conductivity of graphite, heat is transferred from the high-temperature fluid to the low-temperature fluid, thus completing the heat exchange process. Generally, the fluid to be heated is introduced into specific channels of the heat exchanger, undergoes heat exchange, and then flows out from the corresponding outlet. Some heat exchangers incorporate simple filtration devices to remove impurities from the fluid, ensuring efficient heat exchange. Regarding cleaning, some traditional methods involve periodic manual disassembly and cleaning of the heat exchanger, but this method is cumbersome and inefficient.

[0004] Due to factors related to the fluid itself and changes in operating conditions, such as temperature and pressure fluctuations, a large amount of impurities tend to accumulate on the inner wall of the heat exchanger and the outer wall of the heat exchange tubes during long-term use. These impurities affect the flow state of the fluid, reduce heat transfer efficiency, and consequently, prevent the efficient transfer of heat between hot and cold fluids, resulting in a significant reduction in the heat exchange efficiency of the entire production process. To address this issue, a circular block perforated graphite heat exchanger is proposed. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a circular block perforated graphite heat exchanger, which aims to solve the problem that impurities easily adhere to the inner wall of the heat exchanger and the outer wall of the heat exchange tube in the prior art, affecting the heat exchange efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a circular block perforated graphite heat exchanger, comprising a heat exchanger body, wherein a cleaning mechanism and a heat exchange filtration mechanism are provided inside the heat exchanger body, the cleaning mechanism comprising a connecting pipe, the connecting pipe being disposed on the left and right sides of the heat exchanger body, a motor being fixedly connected to the left side of one of the connecting pipes, a rotating rod being fixedly connected to the output end of the motor, a brush plate being fixedly connected to the outer wall of the rotating rod, and a reciprocating screw being fixedly connected to the other end of the rotating rod, the reciprocating screw being disposed on the inner wall of the heat exchanger body, and a cleaning scraper being threadedly connected to the outer wall of the reciprocating screw.

[0007] Preferably, the heat exchange and filtration mechanism includes a sealing cover, the outer wall of which is fixedly connected to the left and right sides of the heat exchanger body, and the outer walls of the two connecting pipes are fixedly connected to the outer walls of the two sealing covers.

[0008] Preferably, the heat exchange filtration mechanism further includes a filter screen disposed on the inner wall of the sealing cover.

[0009] Preferably, the heat exchange and filtration mechanism further includes a heat exchange tube, both ends of which are fixedly connected to the inner wall of the heat exchanger body, and the outer wall of the heat exchange tube is slidably connected to the inner wall of the cleaning scraper.

[0010] Preferably, the heat exchange filtration mechanism further includes a fluid inlet, which is located on the top of the outer wall of the heat exchanger body.

[0011] Preferably, the heat exchange filtration mechanism further includes a fluid outlet, which is located at the bottom of the outer wall of the heat exchanger body.

[0012] Preferably, the heat exchange and filtration mechanism further includes a second fluid inlet, which is located at the top of the outer wall of a connecting pipe.

[0013] Preferably, the heat exchange and filtration mechanism further includes a second fluid outlet, which is located at the bottom of the outer wall of another connecting pipe.

[0014] This utility model has the following beneficial effects:

[0015] 1. By setting up a cleaning mechanism, the filter screen can be cleaned, thereby preventing excessive impurities from adhering to the surface of the filter screen and affecting its filtration effect. The inner wall of the heat exchanger body and the outer wall of the heat exchange tube can also be cleaned, thereby preventing impurities from adhering to the inner wall of the heat exchanger body and the outer wall of the heat exchange tube and affecting its heat exchange effect.

[0016] 2. By setting up a heat exchange filtration mechanism, the filter screen will filter the fluid entering the sealed cover to prevent impurities in the fluid from entering and affecting the heat exchange effect. The two fluids exchange heat through the heat exchange tube wall, with the hot fluid transferring heat to the cold fluid, thus achieving heat exchange. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a circular block perforated graphite heat exchanger proposed in this utility model.

[0018] Figure 2 This is a front view cross-sectional structural diagram of a circular block perforated graphite heat exchanger proposed in this utility model.

[0019] Figure 3This is a schematic diagram of the cross-sectional structure of the sealing cover of a circular block perforated graphite heat exchanger proposed in this utility model.

[0020] Figure 4 This is a side view cross-sectional structural diagram of the heat exchanger body of a circular block perforated graphite heat exchanger proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the cleaning scraper structure of a circular block perforated graphite heat exchanger proposed in this utility model.

[0022] Legend:

[0023] 1. Heat exchanger body; 2. Cleaning mechanism; 211. Connecting pipe; 212. Motor; 213. Rotating rod; 214. Brush plate; 215. Reciprocating screw; 216. Cleaning scraper; 3. Heat exchange and filtration mechanism; 311. Sealing cover; 312. Filter screen; 313. Heat exchange tube; 314. Fluid inlet one; 315. Fluid outlet one; 316. Fluid inlet two; 317. Fluid outlet two. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Reference Figure 1 , Figure 2 , Figure 5 This utility model provides an embodiment of a circular block-type graphite heat exchanger, comprising a heat exchanger body 1, which serves as the basic frame of the entire device, accommodating and protecting the internal mechanisms for normal operation. The heat exchanger body 1 contains a cleaning mechanism 2 and a heat exchange filtration mechanism 3. The cleaning mechanism 2 removes fouling from the heat exchanger body 1 to maintain efficient heat exchange. The heat exchange filtration mechanism 3 facilitates heat exchange and impurity filtration between hot and cold fluids. The cleaning mechanism 2 includes connecting pipes 211, providing a channel for fluid flow and connecting the various components. The connecting pipes 211 are located on the left and right sides of the heat exchanger body 1. A motor 212 is fixedly connected to the left side of a connecting pipe 211 to provide power for the cleaning action. One end of a rotating rod 213 is fixedly connected to the output end of the motor 212 to transmit the power of the motor 212. A brush plate 214 is fixedly connected to the outer wall of the rotating rod 213. A reciprocating screw 215 is fixedly connected to the other end of the rotating rod 213 to convert the rotational motion into the linear reciprocating motion of the cleaning scraper 216. The reciprocating screw 215 is set on the inner wall of the heat exchanger body 1. The cleaning scraper 216 is threadedly connected to the outer wall of the reciprocating screw 215 to scrape away stubborn dirt on the inner wall and the outer wall of the heat exchange tube 313.

[0026] Reference Figure 2 - Figure 4The heat exchange filtration mechanism 3 includes a sealing cover 311 to prevent fluid leakage and protect internal components. The outer wall of the sealing cover 311 is fixedly connected to the left and right sides of the heat exchanger body 1. The bottom of the sealing cover 311 has a discharge port for discharging impurities. The outer walls of the two connecting pipes 211 are fixedly connected to the outer walls of the two sealing covers 311 to ensure smooth fluid flow between components. The heat exchange filtration mechanism 3 also includes a filter screen 312 to filter impurities in the fluid and avoid affecting the heat exchange effect. The filter screen 312 is set on the inner wall of a sealing cover 311. The outer wall of the filter screen 312 is fixedly connected to the outer wall of the left end of the heat exchange tube 313. The heat exchange filtration mechanism 3 also includes a heat exchange tube 313, which is the core component for heat exchange. Hot and cold fluids transfer heat through its tube wall. Both ends of the heat exchange tube 313 are fixedly connected to the inner wall of the heat exchanger body 1. The outer wall of the heat exchange tube 313 is slidably connected to the inner wall of the cleaning scraper 216 for easy cleaning and maintenance by the cleaning scraper 216.

[0027] Reference Figure 2 - Figure 4 The heat exchange filtration mechanism 3 also includes a fluid inlet 314, which is a channel for the fluid to be heat exchanged to enter the heat exchanger. The fluid inlet 314 is located at the top of the outer wall of the heat exchanger body 1. The heat exchange filtration mechanism 3 also includes a fluid outlet 315, which is a channel for the fluid to flow out after heat exchange. The fluid outlet 315 is located at the bottom of the outer wall of the heat exchanger body 1. The heat exchange filtration mechanism 3 also includes a fluid inlet 316, which is a channel for another fluid to be heat exchanged to enter. The fluid inlet 316 is located at the top of the outer wall of a connecting pipe 211. The heat exchange filtration mechanism 3 also includes a fluid outlet 317, which is a channel for the fluid to flow out after heat exchange. The fluid outlet 317 is located at the bottom of the outer wall of another connecting pipe 211.

[0028] Working principle: During heat exchange in the heat exchanger body 1, the two fluids to be exchanged enter the heat exchanger from different inlets. One fluid enters the heat exchanger body 1 from fluid inlet 314 and flows around the heat exchange tube 313. The other fluid enters the connecting pipe 211 from fluid inlet 316, then flows into the sealing cover 311, and finally enters the heat exchange tube 313. During the flow around the heat exchange tube 313, heat exchange occurs through the tube wall. The hot fluid transfers heat to the cold fluid, thus achieving heat exchange. During this process, the filter screen 312 fixedly connected to the inner wall of the sealing cover 311 filters the fluid entering the sealing cover 311, preventing impurities in the fluid from entering and affecting the heat exchange effect. After heat exchange, the two fluids flow out of the heat exchanger body 1 from fluid outlet 315 and fluid outlet 317, respectively, thus completing the entire heat exchange and filtration process.

[0029] When cleaning of the interior of the heat exchanger body 1 is required, the motor 212 on the left side of the connecting pipe 211 is started. The motor 212 drives the rotating rod 213 at the output end to rotate, and the brush plate 214 fixedly connected to the outer wall of the rotating rod 213 rotates accordingly. The brush plate 214 can scrape off the impurities attached to the surface of the filter screen 312, thereby cleaning the filter screen 312 and preventing excessive impurities from adhering to the surface of the filter screen 312 and affecting its filtration effect. At the same time, the rotating rod 213 drives the reciprocating screw 215 at the other end to rotate. The cleaning scraper 216 is connected to the outer wall of the reciprocating screw 215 by a thread. When the screw rotates, the cleaning scraper 216 will move back and forth in a straight line along the reciprocating screw 215. During the movement, the cleaning scraper 216 can scrape off impurities on the inner wall of the heat exchanger body 1 and the outer wall of the heat exchange tube 313, thereby cleaning the inner wall of the heat exchanger body 1 and the outer wall of the heat exchange tube 313. This can prevent impurities from adhering to the inner wall of the heat exchanger body 1 and the outer wall of the heat exchange tube 313, thus preventing impurities from adhering to the outer wall of the heat exchange tube 313 and affecting its heat exchange effect.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A round block hole type graphite heat exchanger comprising a heat exchanger body (1), characterized in that: The heat exchanger body (1) is internally provided with a cleaning mechanism (2) and a heat exchange filtering mechanism (3), the cleaning mechanism (2) comprises a connecting pipe (211), the connecting pipe (211) is arranged on the left and right sides of the heat exchanger body (1), one end of the connecting pipe (211) is fixedly connected with a motor (212), the output end of the motor (212) is fixedly connected with one end of a rotating rod (213), the outer wall of the rotating rod (213) is fixedly connected with a brush plate (214), the other end of the rotating rod (213) is fixedly connected with a reciprocating screw rod (215), the reciprocating screw rod (215) is arranged on the inner wall of the heat exchanger body (1), and the outer wall of the reciprocating screw rod (215) is threadedly connected with a cleaning scraper (216).

2. The graphite heat exchanger of claim 1, wherein: The heat exchange filtering mechanism (3) comprises a sealing cover (311), the outer wall of the sealing cover (311) is fixedly connected on the left and right sides of the heat exchanger body (1), and the outer walls of the two connecting pipes (211) are fixedly connected with the outer walls of the two sealing covers (311).

3. A graphite gasketed block heat exchanger according to claim 2, characterized in that: The heat exchange filtering mechanism (3) further comprises a filter screen (312), and the filter screen (312) is arranged on the inner wall of one of the sealing covers (311).

4. The graphite heat exchanger of claim 1, wherein: The heat exchange filtering mechanism (3) further comprises a heat exchange pipe (313), both ends of the heat exchange pipe (313) are fixedly connected with the inner wall of the heat exchanger body (1), and the outer wall of the heat exchange pipe (313) is slidably connected with the inner wall of the cleaning scraper (216).

5. The graphite heat exchanger of claim 1, wherein: The heat exchange filtering mechanism (3) further comprises a fluid inlet one (314), and the fluid inlet one (314) is arranged on the top of the outer wall of the heat exchanger body (1).

6. The graphite heat exchanger of claim 1, wherein: The heat exchange filtering mechanism (3) further comprises a fluid outlet one (315), and the fluid outlet one (315) is arranged on the bottom of the outer wall of the heat exchanger body (1).

7. The graphite heat exchanger of claim 1, wherein: The heat exchange filtering mechanism (3) further comprises a fluid inlet two (316), and the fluid inlet two (316) is arranged on the top of the outer wall of one of the connecting pipes (211).

8. The graphite heat exchanger of claim 1, wherein: The heat exchange filtering mechanism (3) further comprises a fluid outlet two (317), and the fluid outlet two (317) is arranged on the bottom of the outer wall of the other connecting pipe (211).

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