A heat exchanger that is easy to clean

Abstract

The present invention discloses a heat exchanger that is easy to clean, and relates to the technical field of heat exchangers. The heat exchanger comprises a heat exchanger shell, wherein a plurality of heat exchange tubes are arranged inside the heat exchanger shell, and a plurality of fixing plates are fixedly installed on the outside of the plurality of heat exchange tubes, and the fixing plates are fixedly connected to the heat exchanger shell. The heat exchanger shell also comprises: a moving component, which is arranged inside and outside the heat exchanger shell, and the moving component comprises a fixing frame, which is fixedly installed on one side of the outside of the heat exchanger shell, an electric push rod is fixedly installed on one side of the fixing frame, and a moving plate is fixedly installed on the movable end of the electric push rod, and a mounting rod is symmetrically installed on one side of the moving plate; so that when the heat exchange tubes are cleaned, the efficiency of cleaning the heat exchange tubes can be improved, and after cleaning, the inside of the heat exchanger shell can be fully rinsed, and the cleaning agent can be flushed down to avoid the existence of cleaning dead corners, thereby improving the convenience of flushing and improving practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, in particular to a heat exchanger which is easy to clean. Background Art

[0002] A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, bringing the fluid temperature to the specified process temperature to meet process requirements. It is also one of the key devices for improving energy efficiency. Heat exchangers include U-tube heat exchangers.

[0003] For example, a heat exchanger with publication number CN117824389B is easy to clean. By combining a vibration cleaning mechanism, a heat exchanger shell and a heat exchange tube, the surface of the heat exchange tube can be immersed and cleaned while slightly vibrating and knocking the surface of the heat exchange tube, which facilitates the removal of scale attached to the surface of the heat exchange tube. The peeled scale impurities are discharged and processed outward with the flowing water, thereby increasing the cleanliness and convenience of cleaning the surface of the heat exchange tube and improving the efficiency of cleaning the surface of the heat exchange tube. However, in actual use, the heat exchange tube is immersed in an acidic cleaning agent. After cleaning the heat exchange tube, a large amount of cleaning agent will remain inside the heat exchanger shell. In order to avoid corrosion to the heat exchanger, the cleaning agent needs to be flushed down in time. When flushing down the cleaning agent, it is usually flushed with a handheld water pipe. The flushing process is relatively inconvenient and there are prone to cleaning dead corners, which has certain usage defects.

[0004] Therefore, we propose a heat exchanger that is easy to clean in order to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat exchanger that is easy to clean, so as to solve the problem proposed in the above background technology that the heat exchange tubes are soaked in an acidic cleaning agent. After the heat exchange tubes are cleaned, a large amount of cleaning agent will remain inside the heat exchanger shell. In order to avoid corrosion to the heat exchanger, the cleaning agent needs to be flushed down in time. When flushing down the cleaning agent, it is usually flushed with a handheld water pipe. The flushing process is relatively inconvenient and is prone to the problem of cleaning dead corners.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a heat exchanger that is easy to clean, comprising a heat exchanger housing, a plurality of heat exchange tubes being arranged inside the heat exchanger housing, a plurality of fixing plates being fixedly mounted on the outside of the plurality of heat exchange tubes, and the fixing plates being fixedly connected to the heat exchanger housing;

[0007] Also includes:

[0008] A movable assembly is arranged inside and outside the heat exchanger shell, and the movable assembly includes a fixed frame;

[0009] A fixed frame is fixedly mounted on one side of the exterior of the heat exchanger housing, an electric push rod is fixedly mounted on one side of the fixed frame, a movable plate is fixedly mounted on the movable end of the electric push rod, and mounting rods are symmetrically mounted on one side of the movable plate, and a movable plate is fixedly mounted on one end of the two mounting rods away from the movable plate, and the movable plate is slidably connected to the plurality of fixed plates;

[0010] The fixed rods are symmetrically mounted on both sides of the movable plate in a plurality of groups. The ends of the two fixed rods that are away from each other are rotatably connected to rotating sleeves, and the interiors of the two rotating sleeves are slidably connected to annular tubes. The inner and outer sides of the annular tubes are symmetrically connected to two groups of nozzles. At the same time, the bottom of the annular tube is connected to a mounting tube, and the end of the mounting tube away from the annular tube is connected to a connecting hose.

[0011] The connecting pipe is connected to the end of the connecting hose away from the mounting pipe, and the connecting pipe is connected to the heat exchanger shell. Several connecting pipes are connected to the diversion pipe at one end away from the heat exchanger shell, and one side of the diversion pipe is connected to the input pipe, and a valve is provided on the input pipe.

[0012] Preferably, a torsion spring is sleeved on one side of the outer side of the two fixed rods close to the rotating sleeve, and one end of the torsion spring is fixedly connected to the rotating sleeve, and a fixed block is fixedly installed on the other end of the torsion spring, and the fixed block is fixedly connected to the fixed rod.

[0013] By adopting the above technical solution, the annular tube can automatically reset after swinging.

[0014] Preferably, the two rotating sleeves are fixedly connected to a rotating gear on the side away from each other, and a mounting seat is fixedly installed on one side of several groups of rotating gears inside the heat exchanger shell, and several tooth plates are fixedly installed on the inner bottom end of the mounting seat, and the rotating gear is meshed with the tooth plate.

[0015] By adopting the above technical solution, the annular tube can swing after moving.

[0016] Preferably, a telescopic spring is provided on one side of the two rotating sleeves outside the annular tube, and a fixing ring is fixedly installed on one end of the telescopic spring, and the fixing ring is fixedly connected to the annular tube. At the same time, a connecting ring is fixedly installed on the other end of the telescopic spring, and the connecting ring is fixedly connected to the rotating sleeve, and the annular tube is slidably connected to the connecting ring.

[0017] By adopting the above technical solution, the annular tube can automatically reset after rotating.

[0018] Preferably, the movable plates are symmetrically provided with support frames on both sides of the several annular tubes, and a support rod is fixedly provided on the top of the support frame, and a steel rope is fixedly provided above one side of the support rod, and the end of the steel rope away from the support rod is fixedly connected to the annular tube.

[0019] By adopting the above technical solution, the annular tube can perform circumferential rotation while swinging back and forth.

[0020] Preferably, the two steel ropes are centrally symmetrically arranged on the annular tube.

[0021] By adopting the above technical solution, the steel rope can pull the annular tube to rotate circumferentially.

[0022] Preferably, a positioning ring is fixedly installed on the other side of the two rotating sleeves outside the annular tube, and a mounting plate is fixedly installed on the side where the two positioning rings are close to each other, and a plurality of sliding rods are slidably connected to the inside of the mounting plate, and a column rod is fixedly installed on one end of the plurality of sliding rods, and a return spring is sleeved on one side of the outside of the plurality of sliding rods, and one end of the return spring is fixedly connected to the mounting plate, and a connecting block is fixedly installed on the other end of the return spring, and the connecting block is fixedly connected to the sliding rod.

[0023] By adopting the above technical solution, the heat exchange tube can be knocked, thereby quickly peeling off the scale on the heat exchange tube.

[0024] Preferably, a rubber layer is provided on the outer sides of the two poles.

[0025] By adopting the above technical solution, damage to the heat exchange tube caused by contact between the column rod and the heat exchange tube can be avoided.

[0026] Compared with the prior art, the present invention has the following advantages: the heat exchanger that is easy to clean is provided with movable components inside and outside the heat exchanger shell, so that when cleaning the heat exchange tubes, the efficiency of cleaning the heat exchange tubes can be improved, and after cleaning, the inside of the heat exchanger shell can be fully flushed, the cleaning agent can be flushed down, and dead corners of cleaning are avoided, thereby improving the convenience of flushing and enhancing practicality;

[0027] 1. When cleaning the heat exchange tubes, introduce an acidic cleaning agent into the heat exchanger shell to remove the scale on the heat exchange tubes. During cleaning, the input pipe can be connected to an air pump so that air can be pushed into the diversion pipe. Then, the air is introduced into multiple annular tubes through the connecting pipe and the connecting hose so that the air is ejected through the nozzle. The air ejected through the nozzle can generate bubbles, and the aeration operation can be performed to assist in removing the scale on the heat exchange tubes. The electric push rod can be started to drive the movable plate to move back and forth, so that the annular tube can move back and forth continuously. After cleaning, the cleaning agent inside the heat exchange tubes is released, and then clean water is input into the annular tubes through the water pump. The clean water is ejected through the nozzle to fully rinse the inside of the heat exchange tubes. The movable plate drives the annular tube to move in the mounting seat during the reciprocating movement, and then the annular tube is driven by the meshing of the rotating gear and the toothed plate. After the annular tube rotates, it can rotate on the fixed rod and deform the torsion spring. When the rotating gear moves between the two toothed plates, the rotating sleeve and the annular tube are reset under the action of the torsion spring, so that the annular tube can swing back and forth during the reciprocating movement, which can increase the range of movement of the nozzle and avoid dead angles in subsequent flushing. The mobile assembly can improve the efficiency of cleaning the heat exchange tube when cleaning the heat exchange tube, and it is convenient to fully flush the inside of the heat exchanger shell after cleaning, and the cleaning agent can be flushed down to avoid dead angles in cleaning, thereby improving the convenience of flushing and improving practicality.

[0028] 2. When the annular tubes are swinging back and forth, since the two steel ropes are obliquely and symmetrically arranged on the annular tubes, after the annular tubes swing, one end of the steel rope is fixed to the support rod, so that the swinging steel rope of the annular tubes can pull the annular tubes to rotate circumferentially, so that they slide on the rotating sleeve and stretch the telescopic spring. After the rotating gear is disengaged from the tooth plate, the annular tubes swing back to their original position. Under the action of the telescopic spring, the annular tubes are reset, and thus the annular tubes can rotate back and forth circumferentially during the reciprocating swinging process, so that the range of movement of the nozzles can be further expanded, the existence of dead angles in flushing can be further avoided, and the convenience of flushing and cleaning can be improved;

[0029] 3. The annular tube will drive the mounting plate to swing as it swings back and forth. After the mounting plate swings, it will drive the column to contact several heat exchange tubes. When the annular tube swings to vertical, the column contacts the heat exchange tube, causing the sliding rod on the column to slide on the mounting plate and stretch the reset spring, so that the column can slap the heat exchange tube, causing the heat exchange tube to vibrate slightly, thereby quickly peeling off the scale on the heat exchange tube and improving the cleaning efficiency of the heat exchange tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 Schematic diagram of the internal structure of the heat exchanger shell of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the mobile component of the present invention;

[0033] Figure 4 This is a schematic diagram of the movable plate structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the local structure of the mobile component of the present invention;

[0035] Figure 6 This is a schematic diagram of the annular tube structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the mounting base structure of the present invention;

[0037] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure of area A in the middle;

[0038] Figure 9 For the present invention Figure 6 Schematic diagram of the enlarged structure of area B in the middle.

[0039] In the figure: 1, heat exchanger shell; 101, heat exchange tube; 102, fixed plate; 2, moving assembly; 201, fixed frame; 202, electric push rod; 203, moving plate; 204, mounting rod; 205, movable plate; 206, fixed rod; 207, rotating sleeve; 208, annular pipe; 2081, nozzle; 209, mounting pipe; 210, connecting hose; 211, connecting pipe; 212, diverter pipe; 21 3. Input pipe; 214. Connecting ring; 215. Torsion spring; 216. Fixed block; 217. Rotating gear; 218. Mounting seat; 219. Tooth plate; 220. Telescopic spring; 221. Fixed ring; 222. Support frame; 223. Support rod; 224. Steel rope; 225. Positioning ring; 226. Mounting plate; 227. Sliding rod; 228. Column rod; 229. Return spring; 230. Connecting block. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See also Figures 1-9The present invention provides a technical solution: a heat exchanger that is easy to clean, comprising a heat exchanger shell 1, wherein a plurality of heat exchange tubes 101 are arranged inside the heat exchanger shell 1, and a plurality of fixing plates 102 are fixedly installed outside the plurality of heat exchange tubes 101, and the fixing plates 102 are fixedly connected to the heat exchanger shell 1;

[0042] Also includes:

[0043] The movable assembly 2 is arranged inside and outside the heat exchanger housing 1, and the movable assembly 2 includes a fixing frame 201;

[0044] A fixed frame 201 is fixedly mounted on one side of the exterior of the heat exchanger housing 1. An electric push rod 202 is fixedly mounted on one side of the fixed frame 201. A movable plate 203 is fixedly mounted on the movable end of the electric push rod 202. Mounting rods 204 are symmetrically mounted on one side of the movable plate 203. A movable plate 205 is fixedly mounted on one end of the two mounting rods 204 away from the movable plate 203. The movable plate 205 is slidably connected to the plurality of fixed plates 102.

[0045] Fixed rods 206 are symmetrically mounted on both sides of the movable plate 205 in a plurality of groups. The ends of the two fixed rods 206 that are away from each other are rotatably connected to a rotating sleeve 207. The interiors of the two rotating sleeves 207 are slidably connected to an annular tube 208. Two groups of nozzles 2081 are symmetrically connected to the inner and outer sides of the annular tube 208. At the same time, a mounting tube 209 is connected to the bottom of the annular tube 208, and a connecting hose 210 is connected to the end of the mounting tube 209 away from the annular tube 208.

[0046] The connecting pipe 211 is connected to the end of the connecting hose 210 away from the mounting pipe 209. The connecting pipe 211 is connected to the heat exchanger shell 1. The ends of several connecting pipes 211 away from the heat exchanger shell 1 are connected to the diversion pipe 212. One side of the diversion pipe 212 is connected to the input pipe 213. The input pipe 213 is provided with a valve.

[0047] A torsion spring 215 is sleeved on one side of the two fixed rods 206 near the rotating sleeve 207, and one end of the torsion spring 215 is fixedly connected to the rotating sleeve 207, and a fixing block 216 is fixedly installed on the other end of the torsion spring 215, and the fixing block 216 is fixedly connected to the fixed rod 206;

[0048] The two rotating sleeves 207 are fixedly connected to the side away from each other with a rotating gear 217, and the inside of the heat exchanger shell 1 is fixedly installed with a mounting seat 218 on one side of several groups of rotating gears 217, and the inner bottom end of the mounting seat 218 is fixedly installed with several tooth plates 219, and the rotating gear 217 is meshed and connected with the tooth plate 219.

[0049] Example 1: Figures 1-8 As shown, when cleaning the heat exchange tube 101, an acidic cleaning agent is introduced into the heat exchanger shell 1 to remove scale on the heat exchange tube 101. During cleaning, an air pump can be introduced into the input pipe 213 so that air can be pushed into the diversion pipe 212. Then, air is introduced into the multiple annular tubes 208 through the connecting pipe 211 and the connecting hose 210, so that the air is ejected through the nozzle 2081. The air ejected through the nozzle 2081 can generate bubbles, and an aeration operation can be performed to assist in removing scale on the heat exchange tube 101. The electric push rod 202 can be started to drive the movable plate 203 to move, so that the movable plate 205 can reciprocate, so that the annular tube 208 can continuously reciprocate. After cleaning, the cleaning agent inside the heat exchange tube 101 is released, and then clean water is input into the annular tube 208 through the water pump, so that the clean water is ejected through the nozzle 2081 to fully rinse the inside of the heat exchange tube 101. The movable plate 205 drives the annular tube 208 to drive the rotating gear 217 to move in the mounting seat 218 during the reciprocating movement, and then the annular tube 208 can be driven by the engagement of the rotating gear 217 with the tooth plate 219. After the annular tube 208 rotates, it can rotate on the fixed rod 206 and cause the torsion spring 215 to deform. When the rotating gear 217 moves between the two tooth plates 219, the rotating sleeve 207 and the annular tube 208 are reset under the action of the torsion spring 215, so that the annular tube 208 can swing back and forth during the reciprocating movement, which can increase the range of movement of the nozzle 2081 and avoid dead corners in subsequent flushing. By moving the component 2, the efficiency of cleaning the heat exchange tube 101 can be improved when cleaning the heat exchange tube 101, and it is convenient to fully flush the inside of the heat exchanger shell 1 after cleaning, and the cleaning agent can be flushed down to avoid dead corners in cleaning, thereby improving the convenience of flushing and improving practicality.

[0050] A telescopic spring 220 is sleeved on one side of the two rotating sleeves 207 on the outside of the annular tube 208, and a fixing ring 221 is fixedly installed on one end of the telescopic spring 220, and the fixing ring 221 is fixedly connected to the annular tube 208. At the same time, a connecting ring 214 is fixedly installed on the other end of the telescopic spring 220, and the connecting ring 214 is fixedly connected to the rotating sleeve 207. The annular tube 208 is slidably connected to the connecting ring 214;

[0051] The movable plate 205 is located on both sides of the plurality of annular tubes 208 and is symmetrically mounted with support frames 222. A support rod 223 is fixedly mounted on the top of the support frame 222, and a steel rope 224 is fixedly mounted on one side of the support rod 223. At the same time, one end of the steel rope 224 away from the support rod 223 is fixedly connected to the annular tube 208.

[0052] The two steel ropes 224 are centrally symmetrically arranged on the annular tube 208 .

[0053] Example 2: Figure 5-Figure 6 and Figure 8 As shown, when several annular tubes 208 swing back and forth, since two steel ropes 224 are arranged obliquely and symmetrically on the annular tubes 208, after the annular tubes 208 swing, one end of the steel rope 224 is fixed to the support rod 223, so that the swinging steel rope 224 of the annular tube 208 can pull the annular tube 208 to rotate circumferentially, so that it slides on the rotating sleeve 207, and can stretch the telescopic spring 220. After the rotating gear 217 is disengaged from the tooth plate 219, the annular tube 208 swings back and forth, and the annular tube 208 is reset under the action of the telescopic spring 220, so that the annular tube 208 can rotate back and forth circumferentially during the reciprocating swinging process, so that the range of motion of the nozzle 2081 can be further expanded, further avoiding dead angles in flushing, and improving the convenience of flushing and cleaning.

[0054] A positioning ring 225 is fixedly installed on the outside of the annular tube 208 on the other side of the two rotating sleeves 207, and a mounting plate 226 is fixedly installed on the side close to the two positioning rings 225. A plurality of sliding rods 227 are slidably connected to the inside of the mounting plate 226, and a column 228 is fixedly installed on one end of the plurality of sliding rods 227. A return spring 229 is sleeved on one side of the outer side of the plurality of sliding rods 227, and one end of the return spring 229 is fixedly connected to the mounting plate 226, and the other end of the return spring 229 is fixedly installed to a connecting block 230, and the connecting block 230 is fixedly connected to the sliding rod 227.

[0055] The outer sides of the two poles 228 are both provided with a rubber layer.

[0056] Example 3: Figure 5-Figure 6 and Figure 9 As shown, the annular tube 208 will drive the mounting plate 226 to swing during the reciprocating swinging process, and after the mounting plate 226 swings, it will drive the column rod 228 to contact several heat exchange tubes 101. When the annular tube 208 swings to vertical, the column rod 228 contacts the heat exchange tube 101, so that the sliding rod 227 on the column rod 228 slides on the mounting plate 226 and stretches the reset spring 229, so that the column rod 228 can slap the heat exchange tube 101, which can cause the heat exchange tube 101 to vibrate slightly, and then the scale on the heat exchange tube 101 can be quickly peeled off, thereby improving the cleaning efficiency of the heat exchange tube 101.

[0057] Working principle: When using this easy-to-clean heat exchanger, first, according to Figures 1-9As shown, when cleaning the heat exchange tube 101, an acidic cleaning agent is introduced into the heat exchanger shell 1 to remove the scale on the heat exchange tube 101. During cleaning, the input pipe 213 can be connected to an air pump so that air can be pushed into the diversion pipe 212. Then, the air is introduced into the multiple annular tubes 208 through the connecting pipe 211 and the connecting hose 210, so that the air is ejected through the nozzle 2081. The air ejected through the nozzle 2081 can generate bubbles, and an aeration operation can be performed to assist in removing the scale on the heat exchange tube 101. The electric push rod 202 can be started to drive the movable plate 203 to move, so that the movable plate 205 can move back and forth, so that the annular tube 208 can move back and forth continuously. After cleaning, the cleaning agent inside the heat exchange tube 101 is released, and then the air is passed through the nozzle 208. The water pump inputs clean water into the annular tube 208, so that the clean water is sprayed out through the nozzle 2081 to fully flush the inside of the heat exchange tube 101. The movable plate 205 drives the annular tube 208 to move back and forth, which can drive the rotating gear 217 to move in the mounting seat 218. Then, the engagement of the rotating gear 217 with the tooth plate 219 can drive the annular tube 208. After the annular tube 208 rotates, it can rotate on the fixed rod 206, and the torsion spring 215 is deformed. When the rotating gear 217 moves between the two tooth plates 219, the torsion spring 215 causes the rotating sleeve 207 and the annular tube 208 to reset, so that the annular tube 208 can swing back and forth during the reciprocating movement, which can increase the movable range of the nozzle 2081 and avoid dead angles in subsequent flushing.

[0058] When the annular tubes 208 are swinging back and forth, the two steel ropes 224 are symmetrically arranged on the annular tubes 208. After the annular tubes 208 swing, one end of the steel rope 224 is fixed to the support rod 223, so that the swinging steel rope 224 of the annular tubes 208 can pull the annular tubes 208 to rotate circumferentially, so that they slide on the rotating sleeve 207 and stretch the telescopic spring 220. After the rotating gear 217 is separated from the tooth plate 219, the annular tubes 208 swing back to their original position. Under the action of the telescopic spring 220, the annular tubes 208 are reset, thereby allowing the annular tubes 208 to rotate back and forth circumferentially during the reciprocating swinging process, so that the nozzle 208 can be further expanded. The range of movement can further avoid dead corners in flushing and improve the convenience of flushing and cleaning. The annular tube 208 will drive the mounting plate 226 to swing during the reciprocating swinging process. After the mounting plate 226 swings, it will drive the column 228 to contact several heat exchange tubes 101. When the annular tube 208 swings to vertical, the column 228 contacts the heat exchange tube 101, so that the sliding rod 227 on the column 228 slides on the mounting plate 226 and stretches the reset spring 229, so that the column 228 can slap the heat exchange tube 101, which can cause the heat exchange tube 101 to vibrate slightly, thereby quickly peeling off the scale on the heat exchange tube 101 and improving the cleaning efficiency of the heat exchange tube 101.

[0059] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0060] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat exchanger that is easy to clean, comprising a heat exchanger housing (1), wherein a plurality of heat exchange tubes (101) are arranged inside the heat exchanger housing (1), and a plurality of fixing plates (102) are fixedly installed outside the plurality of heat exchange tubes (101), and the fixing plates (102) are fixedly connected to the heat exchanger housing (1); It is characterized in that Also includes: A moving assembly (2) is arranged inside and outside the heat exchanger housing (1), and the moving assembly (2) includes a fixing frame (201); A fixed frame (201) is fixedly mounted on one side of the exterior of the heat exchanger housing (1); an electric push rod (202) is fixedly mounted on one side of the fixed frame (201); a movable plate (203) is fixedly mounted on the movable end of the electric push rod (202); a mounting rod (204) is symmetrically mounted on one side of the movable plate (203); and a movable plate (205) is fixedly mounted on one end of two mounting rods (204) away from the movable plate (203), and the movable plate (205) is slidably connected to a plurality of fixed plates (102); The fixed rods (206) are symmetrically mounted on both sides of the movable plate (205) in a plurality of groups. The ends of the two fixed rods (206) that are away from each other are rotatably connected to the rotating sleeves (207), and the interiors of the two rotating sleeves (207) are slidably connected to the annular tubes (208). The inner and outer sides of the annular tubes (208) are symmetrically connected to two groups of nozzles (2081). At the same time, the bottom of the annular tubes (208) is connected to the mounting tubes (209), and the end of the mounting tubes (209) away from the annular tubes (208) is connected to the connecting hoses (210). A connecting pipe (211) is connected through one end of the connecting hose (210) away from the mounting pipe (209), the connecting pipe (211) is connected through the heat exchanger shell (1), and a plurality of connecting pipes (211) are connected through one end away from the heat exchanger shell (1) with a diverter pipe (212), and one side of the diverter pipe (212) is connected through an input pipe (213), and a valve is provided on the input pipe (213); A torsion spring (215) is sleeved on one side of the exterior of the two fixed rods (206) close to the rotating sleeve (207), and one end of the torsion spring (215) is fixedly connected to the rotating sleeve (207), and a fixing block (216) is fixedly installed on the other end of the torsion spring (215), and the fixing block (216) is fixedly connected to the fixed rod (206); The two rotating sleeves (207) are fixedly connected to a rotating gear (217) on one side away from each other, and a mounting seat (218) is fixedly installed on one side of the plurality of rotating gears (217) inside the heat exchanger housing (1), and a plurality of tooth plates (219) are fixedly installed on the inner bottom end of the mounting seat (218), and the rotating gear (217) is meshedly connected with the tooth plate (219); The annular tube (208) is provided with a telescopic spring (220) on one side of the two rotating sleeves (207), and a fixing ring (221) is fixedly installed on one end of the telescopic spring (220), and the fixing ring (221) is fixedly connected to the annular tube (208). At the same time, a connecting ring (214) is fixedly installed on the other end of the telescopic spring (220), and the connecting ring (214) is fixedly connected to the rotating sleeve (207), and the annular tube (208) is slidably connected to the connecting ring (214); The movable plate (205) is symmetrically mounted with support frames (222) on both sides of the plurality of annular tubes (208), and a support rod (223) is fixedly mounted on the top of the support frame (222), and a steel rope (224) is fixedly mounted above one side of the support rod (223), and the end of the steel rope (224) away from the support rod (223) is fixedly connected to the annular tube (208).

2. The heat exchanger that is easy to clean according to claim 1, characterized in that: The two steel ropes (224) are centrally symmetrically arranged on the annular tube (208).

3. The heat exchanger that is easy to clean according to claim 1, characterized in that: The outside of the annular tube (208) is fixedly mounted with a positioning ring (225) on the other side of the two rotating sleeves (207), and the two positioning rings (225) are fixedly mounted with a mounting plate (226) on the side close to each other, and the inside of the mounting plate (226) is slidably connected with a plurality of sliding rods (227), and one end of the plurality of sliding rods (227) is fixedly mounted with a column rod (228), and the outer side of the plurality of sliding rods (227) is sleeved with a reset spring (229), and one end of the reset spring (229) is fixedly connected to the mounting plate (226), and the other end of the reset spring (229) is fixedly mounted with a connecting block (230), and the connecting block (230) is fixedly connected to the sliding rod (227).

4. The heat exchanger that is easy to clean according to claim 3, characterized in that: The outer sides of the two poles (228) are both provided with a rubber layer.

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