A heat exchanger descaling device

Abstract

The utility model provides a heat exchanger scale removing device, include: heat exchanger, support frame, water tank, scale removing mechanism and filter mechanism, wherein, heat exchanger is linked with support frame, and support frame is placed perpendicular to ground, water tank sets up in support frame front side, scale removing mechanism includes guide portion, pumping unit and multiple sets of cleaning assembly, wherein, guide portion is installed on heat exchanger, pumping unit sets up between water tank and guide portion, multiple sets of cleaning assembly are arranged on pumping unit respectively, filter mechanism sets up on water tank. The utility model discloses a heat exchanger scale removing device, and the cleaning assembly is rotated and advances in the heat exchange pipe through pumping unit cooperation guide portion, and the drill bit cooperates with high -speed water flow and can carry out the broken hard scale that is jammed in the pipeline and makes it drop out the outside of heat exchange pipe after, has improved the efficiency and effect of heat exchanger scale removing greatly.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a heat exchanger descaling device. Background Technology

[0002] A heat exchanger is a device that transfers heat from one fluid to another. It is widely used in energy, chemical, and HVAC fields. The main types include shell and tube heat exchangers, plate heat exchangers, finned heat exchangers, and spiral plate heat exchangers.

[0003] The descaling device for a heat exchanger described in publication CN222799799U cleans the scale inside the heat exchange tubes using a cleaning component, collects and circulates the cleaned water using a water collection component, dissolves the cleaning agent in the water using a stirring component, and filters out residues in the water using a filtration component to prevent residues from flowing into the water pump. This achieves the effect of conveniently cleaning the scale inside the heat exchange tubes. However, the existing technology still has the following drawbacks: During cleaning, the aforementioned device uses a water pump to draw water from the tank into the connecting sleeve, and then discharges it into the interior of multiple heat exchange tubes to scrub the inner walls of the heat exchange tubes. However, the heat exchange tubes are quite long, and the high-speed water flow gradually disperses during the spraying process. After spraying a certain distance, the impact force weakens. When the scale buildup inside the pipes is severe, water flow alone cannot completely clear the pipes, resulting in poor cleaning and descaling effects. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this utility model is to provide a heat exchanger descaling device, in which the cleaning component rotates and advances inside the heat exchange tube through a water pumping part and a guide part, and the drill bit, in conjunction with high-speed water flow, can break up the hard scale blocking the pipe and discharge it to the outside of the heat exchange tube, which greatly improves the efficiency and effect of heat exchanger descaling.

[0006] To achieve the above objectives, the first aspect of this utility model provides a heat exchanger descaling device, comprising: a heat exchanger, a support frame, a water tank, a descaling mechanism, and a filtration mechanism, wherein the heat exchanger is connected to the support frame, and the support frame is placed perpendicular to the ground; the water tank is disposed on the front side of the support frame; the descaling mechanism includes a guide portion, a pumping portion, and multiple sets of cleaning components, wherein the guide portion is mounted on the heat exchanger; the pumping portion is disposed between the water tank and the guide portion; the multiple sets of cleaning components are respectively disposed on the pumping portion; and the filtration mechanism is disposed on the water tank.

[0007] In addition, the heat exchanger descaling device proposed above according to this utility model may also have the following additional technical features: Specifically, the heat exchanger includes a shell and a plurality of heat exchange tubes, wherein the shell is connected to the support frame; the plurality of heat exchange tubes are respectively disposed inside the shell, and both ends of the tubes penetrate the shell.

[0008] Specifically, the guide portion includes two guide rods, a connecting plate, and a positioning plate. The two guide rods are respectively installed at the front end of the housing. The connecting plate is connected between the front ends of the two guide rods. The positioning plate is connected between the rear ends of the two guide rods. The positioning plate has multiple through holes inside, and each of the multiple through holes corresponds to a multiple heat exchange tube.

[0009] Specifically, the pumping unit includes a water storage pan, two sliders, a high-pressure water pump, a first inlet pipe, and multiple second inlet pipes. The two sliders are respectively connected to the water storage pan, and the two guide rods pass through the corresponding sliders. The high-pressure water pump is installed on the front side of the water tank, and its input end is connected to the inside of the water tank. One end of the first inlet pipe is connected to the output end of the high-pressure water pump, and the other end is connected to the water storage pan. The multiple second inlet pipes are respectively connected to the water storage pan and pass through the corresponding through holes.

[0010] Specifically, each of the cleaning components includes a connector, a multi-hole nozzle, and a drill bit, wherein the connector is connected to the rear end of the second water inlet pipe; the multi-hole nozzle is rotatably connected to the connector; and the drill bit is connected to the multi-hole nozzle.

[0011] Specifically, the filtration mechanism includes a filter plate, a drain pipe, and a valve, wherein the filter plate is disposed in the middle of the interior of the water tank; the drain pipe is disposed on one side of the water tank; and the valve is installed on the drain pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The heat exchanger descaling device of the present invention uses a pumping part and a guiding part to spray high-speed water flow in different directions, which drives the cleaning component to rotate and advance inside the heat exchange tube. The drill bit can break up the hard scale blocking the pipe. At the same time, the high-speed water flow can also maintain a stable water pressure, so that the hard scale falls off and is discharged from the outside of the heat exchange tube, which greatly improves the efficiency and effect of heat exchanger descaling.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a three-dimensional structural diagram of a heat exchanger descaling device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a heat exchanger descaling device according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the descaling mechanism and filtration mechanism of a heat exchanger descaling device according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the cleaning component structure of a heat exchanger descaling device according to an embodiment of the present invention.

[0015] Reference numerals: 1. Heat exchanger; 101. Shell; 102. Heat exchange tube; 2. Support frame; 3. Water tank; 4. Descaling mechanism; 401. Guide section; 4011. Guide rod; 4012. Connecting plate; 4013. Positioning plate; 402. Pumping section; 4021. Water storage pan; 4022. Sliding block; 4023. High-pressure water pump; 4024. First inlet pipe; 4025. Second inlet pipe; 403. Cleaning assembly; 4031. Connector; 4032. Multi-hole nozzle; 4033. Drill bit; 5. Filtration mechanism; 501. Filter plate; 502. Drain pipe; 503. Valve. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0017] A heat exchanger descaling device according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0018] like Figures 1-4 As shown in the figure, a heat exchanger descaling device according to an embodiment of the present invention may include: a heat exchanger 1, a support frame 2, a water tank 3, a descaling mechanism 4, and a filtration mechanism 5.

[0019] The heat exchanger 1 is connected to the support frame 2, which is placed perpendicular to the ground.

[0020] It should be noted that the heat exchanger 1 described in this embodiment is a shell-and-tube heat exchanger and is detachably connected to the support frame 2, which makes it easy to reinstall the original equipment after cleaning.

[0021] Water tank 3 is located on the front side of support frame 2.

[0022] It should be noted that the water tank 3 described in this embodiment is located at the lower front end of the heat exchanger 1, and the width of the water tank 3 is greater than the diameter of the heat exchanger 1, which facilitates the collection of sewage discharged when cleaning the heat exchanger 1.

[0023] The descaling mechanism 4 includes a guide section 401, a pumping section 402, and multiple cleaning components 403.

[0024] The guide section 401 is installed on the heat exchanger 1, the water pumping section 402 is located between the water tank 3 and the guide section 401, and multiple cleaning components 403 are respectively installed on the water pumping section 402.

[0025] It should be noted that the pumping part 402 and the cleaning component 403 described in this embodiment can move back and forth and extend into the heat exchanger 1 for cleaning in cooperation with the guide part 401.

[0026] The filter mechanism 5 is installed on the water tank 3.

[0027] Specifically, when descaling and cleaning the heat exchanger 1, the relevant personnel first disassemble the heat exchanger 1 and install it on the support frame 2. Then, the guide part 401 is installed on the front end of the heat exchanger 1, the cleaning components 403 are aligned with the inside of the heat exchanger 1, and then clean water is injected into the water tank 3 and cleaning agent is added.

[0028] The pumping unit 402 is activated to draw clean water from the water tank 3 into the cleaning component 403. The cleaning component 403 simultaneously sprays out multiple turbine-shaped high-speed water jets and multiple forward-tilting high-speed water jets. The multiple turbine-shaped high-speed water jets drive the cleaning component 403 to rotate automatically through the reaction force, while the multiple forward-tilting high-speed water jets drive the cleaning component 403 to move automatically backward along the inside of the heat exchanger 1 through the recoil force. Thus, the cleaning component 403 can rotate and move at the same time, impacting and breaking up the hard scale layer (such as calcium carbonate and rust) inside. The scale and impurities that fall off are discharged from the front end of the heat exchanger 1 with the water flow and flow into the water tank 3. The filtration mechanism 5 filters the scale and impurities, and the clean water source is transported back to the cleaning component 403 through the pumping unit 402 for recycling, avoiding waste of water resources.

[0029] After the heat exchanger 1 has been completely cleaned and unblocked, the relevant personnel manually pull out the pumping part 402 and the cleaning component 403 from the heat exchanger 1, remove the guide part 401 from the heat exchanger 1, and finally remove the heat exchanger 1 from the support frame 2 and put it back on the original equipment.

[0030] In one embodiment of this utility model, such as Figure 2 As shown, the heat exchanger 1 includes a shell 101 and a plurality of heat exchange tubes 102.

[0031] The shell 101 is connected to the support frame 2, and multiple heat exchange tubes 102 are respectively installed inside the shell 101, with both ends penetrating the shell 101.

[0032] It should be noted that the housing 101 and the support frame 2 described in this embodiment are fixedly connected by bolts to ensure stability.

[0033] In one embodiment of this utility model, such as Figure 3 As shown, the guide section 401 includes two guide rods 4011, a connecting plate 4012, and a positioning plate 4013.

[0034] Two guide rods 4011 are respectively installed at the front end of the housing 101, a connecting plate 4012 is connected between the front ends of the two guide rods 4011, and a positioning plate 4013 is connected between the rear ends of the two guide rods 4011. The positioning plate 4013 has multiple through holes inside, and the multiple through holes correspond one-to-one with multiple heat exchange tubes 102.

[0035] It should be noted that the length of the guide rod 4011 described in this embodiment is greater than the length of the housing 101. The guide rod 4011 is bolted to the housing 101, the connecting plate 4012 is welded to the guide rod 4011, and the positioning plate 4013 is welded to the guide rod 4011. A certain distance is maintained between the positioning plate 4013 and the housing 101 to facilitate sewage discharge.

[0036] In one embodiment of this utility model, such as Figure 1 As shown, the pumping unit 402 includes a water storage pan 4021, two sliders 4022, a high-pressure water pump 4023, a first water inlet pipe 4024, and multiple second water inlet pipes 4025.

[0037] Two sliders 4022 are connected to the water storage pan 4021 respectively, two guide rods 4011 pass through the corresponding sliders 4022 respectively, a high-pressure water pump 4023 is installed on the front side of the water tank 3 and its input end is connected to the inside of the water tank 3, one end of the first water inlet pipe 4024 is connected to the output end of the high-pressure water pump 4023 and the other end is connected to the water storage pan 4021, and multiple second water inlet pipes 4025 are connected to the water storage pan 4021 respectively and pass through the corresponding through holes respectively.

[0038] It should be noted that the first inlet pipe 4024 described in this embodiment is a soft composite high-pressure water pipe, and its length is set according to the length of the heat exchanger 1 to ensure that the cleaning component 403 can completely penetrate the heat exchange tube 102. The second inlet pipe 4025 is a hard composite high-pressure water pipe to ensure the stability of water supply. The length of the second inlet pipe 4025 is the same as the length of the heat exchange tube 102, but its diameter is smaller than the diameter of the heat exchange tube 102, which facilitates complete entry into the interior of the heat exchange tube 102.

[0039] Additionally, it should be noted that the water storage tray 4021 described in this embodiment is cone-shaped with an internal cavity. The slider 4022 is welded and fixed to the water storage tray 4021. One end of the first water inlet pipe 4024 is sealed to the water storage tray 4021, and the other end is sealed to the output end of the high-pressure water pump 4023. The input end of the high-pressure water pump 4023 is sealed to the water tank 3 to prevent water leakage.

[0040] Understandably, the positioning plate 4013 is used to support the second water inlet pipe 4025 to prevent the second water inlet pipe 4025 from bending or shifting, and to ensure that it can be accurately inserted into the heat exchange tube 102.

[0041] In one embodiment of this utility model, such as Figure 3 and Figure 4 As shown, each cleaning component 403 includes a connector 4031, a multi-hole nozzle 4032, and a drill bit 4033.

[0042] Among them, connector 4031 is connected to the rear end of the second water inlet pipe 4025, multi-hole nozzle 4032 is rotatably connected to connector 4031, and drill bit 4033 is connected to multi-hole nozzle 4032.

[0043] It should be noted that the connector 4031 described in this embodiment is sealed to the second water inlet pipe 4025 to prevent water leakage. The maximum diameter of the drill bit 4033 is smaller than the internal diameter of the heat exchange tube 102, which facilitates the complete entry of the cleaning component 403 into the heat exchange tube 102. The drill bit 4033 is welded and fixed to the multi-hole nozzle 4032.

[0044] Additionally, it should be noted that the multi-hole nozzle 4032 described in this embodiment has multiple evenly distributed first nozzles arranged on its conical inclined surface. These first nozzles spray water forward and to the side at a certain angle. The high-speed water flow impacts the inner wall of the heat exchange tube 102, generating a recoil force that pushes the multi-hole nozzle 4032 to move automatically backward. The cylindrical surface of the multi-hole nozzle 4032 has multiple evenly distributed second nozzles arranged in a ring. These second nozzles spray water along the tangential direction of the multi-hole nozzle 4032. The multiple water streams generate turbine motion, and the reaction force drives the multi-hole nozzle 4032 to rotate at high speed, thereby causing the drill bit 4033 to rotate.

[0045] Specifically, when cleaning the inside of the heat exchange tube 102, clean water is injected into the water tank 3, and the high-pressure water pump 4023 is started to draw clean water. The clean water is input into the multi-hole nozzle 4032 through the first water inlet pipe 4024, the water storage pan 4021 and the second water inlet pipe 4025. The high-pressure water flow is sprayed out through the first nozzle and the second nozzle, driving the multi-hole nozzle 4032 to rotate and gradually move into the heat exchange tube 102. The second water inlet pipe 4025, together with the positioning plate 4013, the guide rod 4011 and the slider 4022, also moves into the heat exchange tube 102.

[0046] During the rotation of the drill bit 4033, hard blockages and scale are broken up, and the high-pressure water flow impacts the pipe wall at a 306° angle without dead angles. The detached dirt and impurities are discharged from the front end of the heat exchange tube 102 with the water flow. When the drill bit 4033 completely penetrates the heat exchange tube 102, the descaling and cleaning work is completed. At this time, the high-pressure water pump 4023 is turned off, and relevant personnel pull the water storage pan 4021 forward to pull out the second water inlet pipe 4025 and the cleaning component 403 from the heat exchange tube 102.

[0047] In one embodiment of this utility model, such as Figure 3 As shown, the filtration mechanism 5 includes a filter plate 501, a drain pipe 502, and a valve 503.

[0048] The filter plate 501 is located in the middle of the water tank 3, the drain pipe 502 is located on one side of the water tank 3, and the valve 503 is installed on the drain pipe 502.

[0049] Specifically, the cleaned wastewater is discharged through the front end of the heat exchange pipe 102 and flows into the water tank 3. After being filtered by the filter plate 501, it is pumped again by the high-pressure water pump 4023 into the multi-hole nozzle 4032 for repeated recycling, thus avoiding waste of water resources. After cleaning, relevant personnel open the valve 503 and discharge the impurities and dirt in the water tank 3 through the drain pipe 502.

[0050] In summary, the heat exchanger descaling device of this utility model uses a pumping unit and a guide unit to spray high-speed water jets in different directions, driving the cleaning component to rotate and advance inside the heat exchange tube. The drill bit can break up the hard scale blocking the pipe, while the high-speed water jet can also maintain stable water pressure, causing the hard scale to fall off and be discharged from the outside of the heat exchange tube, which greatly improves the efficiency and effect of heat exchanger descaling.

[0051] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A heat exchanger descaling device, characterized in that, include: Heat exchanger, support frame, water tank, descaling mechanism and filtration mechanism, among which, The heat exchanger is connected to the support frame, which is placed perpendicular to the ground; The water tank is located on the front side of the support frame; The descaling mechanism includes a guide section, a pumping section, and multiple sets of cleaning components, wherein... The guide section is mounted on the heat exchanger; The pumping unit is disposed between the water tank and the guide unit; Multiple sets of the cleaning components are respectively disposed on the pumping section; The filtration mechanism is installed on the water tank.

2. The heat exchanger descaling device according to claim 1, characterized in that, The heat exchanger includes a shell and multiple heat exchange tubes, wherein, The housing is connected to the support frame; Multiple heat exchange tubes are respectively disposed inside the housing, with both ends penetrating the housing.

3. The heat exchanger descaling device according to claim 2, characterized in that, The guide section includes two guide rods, a connecting plate, and a positioning plate, wherein... The two guide rods are respectively installed at the front end of the housing; The connecting plate is connected between the front ends of the two guide rods; The positioning plate is connected between the rear ends of the two guide rods. The positioning plate has multiple through holes inside, and each of the multiple through holes corresponds to one of the multiple heat exchange tubes.

4. A heat exchanger descaling device according to claim 3, characterized in that, The pumping unit includes a water storage pan, two sliders, a high-pressure water pump, a first inlet pipe, and multiple second inlet pipes, wherein... The two sliders are respectively connected to the water storage tray, and the two guide rods respectively pass through the corresponding sliders; The high-pressure water pump is installed on the front side of the water tank, and its input end is connected to the inside of the water tank; One end of the first water inlet pipe is connected to the output end of the high-pressure water pump, and the other end is connected to the water storage pan; Multiple second water inlet pipes are respectively connected to the water storage pan and pass through the corresponding through holes.

5. A heat exchanger descaling device according to claim 4, characterized in that, Each of the cleaning components includes a connector, a multi-hole nozzle, and a drill bit, wherein, The connector is connected to the rear end of the second water inlet pipe; The multi-hole nozzle is rotatably connected to the connector; The drill bit is connected to the multi-hole nozzle.

6. A heat exchanger descaling device according to claim 1, characterized in that, The filtration mechanism includes a filter plate, a drain pipe, and valves, wherein... The filter plate is located in the middle of the inside of the water tank; The sewage pipe is located on one side of the water tank; The valve is installed on the drain pipe.

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