Efficient heat exchanger

Abstract

The invention relates to the technical field of heat exchangers, in particular to an efficient heat exchanger which comprises a shell, and a main body mechanism is mounted on the shell; the two ends of the shell communicate with a fixing mechanism and a connecting mechanism correspondingly. A mounting mechanism is clamped on the shell; a plurality of tube bundles are inserted into the mounting mechanism; a sealing mechanism is mounted between the fixing mechanism and the mounting mechanism; when the mounting mechanism is inserted into the tube bundles, the mounting mechanism and the tube bundles can be assembled together, and then when the tube bundles are clamped into the shell, the mounting mechanism can be assembled; when the fixing mechanism is mounted, the sealing mechanism can be driven to be clamped into the mounting mechanism, so that the sealing performance between the fixing mechanism and the mounting mechanism can be improved through the sealing mechanism, and cold and hot fluid in the fixing mechanism can be prevented from being mixed; the hot fluid is discharged into the tube bundle through the fixing mechanism and then exchanges heat through the cold fluid in the main body mechanism, so that the fluid after heat exchange can be discharged out of the tube bundle.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, in particular to a high-efficiency heat exchanger. Background Art

[0002] Heat exchanger is an energy-saving device that realizes heat transfer between two or more fluids at different temperatures. It transfers heat from a higher temperature fluid to a lower temperature fluid, so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also one of the main equipment for improving energy utilization. The heat exchanger industry involves nearly 30 industries such as HVAC, pressure vessels, reclaimed water treatment equipment, chemicals, petroleum, etc., forming an industrial chain.

[0003] However, when the existing heat exchangers are in use, most of the heat exchangers are installed with bow-shaped baffles, which make the fluid in the shell side flow in a Z-shaped return flow, which is prone to flow dead zones and back mixing, and thus reduces the heat transfer efficiency. When the hot fluid is discharged into the tube bundle through the tube sheet, if the sealing effect between the partition plate and the tube sheet is not good, the hot fluid may leak into the cold fluid, which may easily cause medium mixing and affect the heat exchange effect of the equipment. In severe cases, it may cause the heat exchanger to fail. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a high-efficiency heat exchanger.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a high-efficiency heat exchanger, comprising a shell, a main body mechanism is installed on the shell; two ends of the shell are respectively connected with a fixing mechanism and a connecting mechanism; a mounting mechanism is clamped on the shell; a plurality of tube bundles are inserted in the mounting mechanism; a sealing mechanism is installed between the fixing mechanism and the mounting mechanism;

[0006] The mounting mechanism includes a tube sheet and a clamping ring. One end of the shell is in contact with the tube sheet. A plurality of groups of jacks are provided in the tube sheet. The jacks are clamped and installed with clamping rings. A plurality of tube bundles are clamped and connected in the tube sheet. The clamping ring contacts the end of the tube bundle. A plurality of baffles are clamped and installed on the tube bundle. The baffles are clamped and connected with the shell. A sealing ring is sleeved on the side of the tube sheet away from the clamping ring. The sealing ring is in contact with the end of the shell. A plurality of through holes are provided in the baffle. The tube sheet is in contact with the end of a baffle, and a plurality of the baffles are arranged in a continuous spiral structure. The clamping ring is clamped and connected with the tube sheet. The diameter of the clamping ring is equal to the diameter of the jack, and the diameter of the tube bundle is smaller than the diameter of the clamping ring.

[0007] Specifically, the tube bundle is arranged in a U-shaped structure, and the diameter of the through hole is equal to the diameter of the tube bundle.

[0008] Specifically, the main body structure includes a water inlet pipe and a support, two supports are symmetrically fixedly connected to the shell, the shell is connected to the water inlet pipe, a gasket is snap-fitted and installed on the shell, the gasket is located at one end of the shell away from the tube sheet, and the diameter of the gasket is equal to the inner diameter of the shell.

[0009] Specifically, the fixing mechanism includes a front end pipe box and a liquid outlet pipe. The shell and the tube sheet are fixedly connected with the front end pipe box by bolts. The liquid inlet pipe and the liquid outlet pipe are fixedly installed on the front end pipe box. The front end pipe box is fixedly connected with a partition plate. The partition plate divides the interior of the front end pipe box into two. The front end pipe box is connected with the interior of the tube bundle through the tube sheet.

[0010] Specifically, the connection mechanism includes a rear end pipe box and a water outlet pipe. The rear end pipe box is fixedly installed on one end of the shell away from the tube sheet, and the water outlet pipe is fixedly connected to the rear end pipe box.

[0011] Specifically, the sealing mechanism includes a sealing gasket and a slot. The central portion of the tube sheet is provided with a slot, the sealing gasket is bonded to the slot, a clip is fixedly connected to the partition plate, and the clip is snap-connected to the sealing gasket.

[0012] The beneficial effects of the present invention are:

[0013] (1) In the high-efficiency heat exchanger described in the present invention, when the mounting mechanism is inserted into the tube bundle, it can be assembled with a plurality of tube bundles. Then, when the tube bundle is inserted into the shell, the mounting mechanism can be assembled, so as to facilitate the disassembly and assembly of the tube bundle. That is, the operator can first sleeve a plurality of baffles on the side wall of the tube bundle. Since the baffles are arranged in a spiral structure, the fluid flows in a continuous spiral in the shell, which can reduce the flow dead zone and the scaling dead corner, and is conducive to improving the heat exchange effect of the tube bundle. After the baffles are assembled, the tube sheet is inserted into the end of the tube bundle, and the tube sheet contacts the end of a baffle. After being fixed, several baffles can be in a state of mutual conflict; then the tube bundle and the baffles are placed into the shell. Since the diameter of the tube sheet is equal to the diameter of the shell, when the sealing ring sleeved inside the shell and the tube sheet conflicts, the sealing effect inside the shell can be improved; the tube sheet can be installed on the shell by fixing bolts, and then the clamping ring is clamped into the socket part provided in the tube sheet, so that the clamping ring can conflict with the end of the tube bundle. The setting of the clamping ring can effectively prevent fluid leakage, and the clamping ring can effectively prevent fluid leakage between the tube bundle and the tube sheet, ensuring the normal operation of the heat exchanger and avoiding fluid mixing or contamination.

[0014] (2) The high-efficiency heat exchanger described in the present invention can drive the sealing mechanism to engage in the installation mechanism when the fixing mechanism is installed, and then the sealing mechanism can improve the sealing between the fixing mechanism and the installation mechanism, which is beneficial to preventing the mixing of cold and hot fluids in the fixing mechanism, that is: after the tube sheet is fixed, the end of the front end tube box is aligned with the tube sheet, and the tube sheet can be fixed to the middle part of the front end tube box and the shell by fixing bolts. A partition plate is fixed in the front end tube box, and a clamping plate is fixedly connected to the partition plate. When the front end tube box does not conflict with the tube sheet, the clamping plate can be engaged with the inside of the tube sheet. Since a clamping groove is provided at the center of the tube sheet, and a sealing gasket is bonded to the clamping groove, when the front end tube box contacts the tube sheet, the clamping plate will conflict with the sealing gasket at the clamping groove, so that the clamping plate and the sealing gasket increase the contact area between the partition plate and the tube sheet, which is beneficial to improving the sealing between the front end tube box and the tube sheet, and is beneficial to preventing the mixing of cold and hot fluids.

[0015] (3) In the high-efficiency heat exchanger described in the present invention, the hot fluid is discharged into the tube bundle through a fixed mechanism, and then heat is exchanged with the cold fluid in the main mechanism, so that the fluid after heat exchange can be discharged from the tube bundle, that is, when the heat exchanger is used, the hot fluid is discharged from the liquid inlet pipe to the interior of the front end tube box. Due to the setting of the partition plate, the hot fluid can be discharged into the interior of the tube bundle through the tube sheet. At this time, the cold fluid is discharged into the interior of the shell through the water inlet pipe. The cold fluid passes through the baffle installed on the tube bundle. The spiral baffle changes the flow direction and speed of the fluid, making the fluid flow more uniform and avoiding the phenomenon of excessively high or low local flow rate, thereby optimizing the flow state of the fluid; and the cold fluid forms a vortex flow during the flow process, which increases the contact area between the fluid and the tube bundle and reduces the dead zone of flow and heat transfer, thereby significantly improving the heat transfer coefficient; the hot fluid after heat exchange is discharged to the bottom end of the front end tube box through the tube bundle and discharged from the interior of the heat exchanger through the liquid outlet pipe; when discharging the cold fluid, the cold fluid can be discharged into the interior of the shell through the water outlet pipe fixed on the rear end tube box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a high-efficiency heat exchanger provided by the present invention;

[0018] Figure 2 It is a schematic diagram of the connection structure between the housing and the water inlet pipe of the present invention;

[0019] Figure 3 for Figure 2 An enlarged schematic diagram of the structure of section A is shown;

[0020] Figure 4 It is a schematic diagram of the connection structure between the tube sheet and the sealing gasket of the present invention;

[0021] Figure 5 for Figure 4 An enlarged schematic diagram of the structure of part B is shown;

[0022] Figure 6 It is a schematic diagram of the connection structure between the tube bundle and the baffle of the present invention;

[0023] Figure 7 It is a schematic diagram of the connection structure between the tube sheet and the sealing ring of the present invention;

[0024] Figure 8 It is a schematic diagram of the connection structure between the tube sheet and the slot of the present invention;

[0025] Fig. 9 for Figure 8 An enlarged schematic diagram of the C-section structure is shown;

[0026] Fig.10 It is a schematic diagram of the connection structure between the baffle and the through hole of the present invention.

[0027] In the figure: 1. shell; 2. main body; 201. water inlet pipe; 202. support; 203. gasket; 3. fixing mechanism; 301. liquid inlet pipe; 302. front end pipe box; 303. liquid outlet pipe; 304. partition plate; 4. connecting mechanism; 401. rear end pipe box; 402. water outlet pipe; 5. tube bundle; 6. sealing mechanism; 601. clamping plate; 602. sealing gasket; 603. clamping groove; 7. mounting mechanism; 701. tube sheet; 702. clamping ring; 703. baffle; 704. sealing ring; 705. jack; 706. through hole. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8 and Fig.10 As shown, a high-efficiency heat exchanger according to the present invention comprises a shell 1, on which a main body mechanism 2 is installed; two ends of the shell 1 are respectively connected with a fixing mechanism 3 and a connecting mechanism 4; a mounting mechanism 7 is engaged with the shell 1; a plurality of tube bundles 5 are inserted in the mounting mechanism 7; a sealing mechanism 6 is installed between the fixing mechanism 3 and the mounting mechanism 7;

[0030] Specifically, Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the mounting mechanism 7 includes a tube sheet 701 and a clamp ring 702. One end of the shell 1 contacts the tube sheet 701. The tube sheet 701 is provided with a plurality of groups of jacks 705. The jacks 705 are clamped and installed with clamp rings 702. The tube sheet 701 is clamped and connected with a plurality of tube bundles 5. The clamp ring 702 contacts the end of the tube bundle 5. The tube bundle 5 is clamped and installed with a plurality of baffles 703. The baffles 703 are clamped and connected with the shell 1. The tube sheet 70 A sealing ring 704 is sleeved on the side away from the clamp ring 702, and the sealing ring 704 contacts the end of the shell 1. The baffle plate 703 is provided with a plurality of through holes 706. The tube sheet 701 contacts the end of one baffle plate 703, and a plurality of baffle plates 703 are arranged in a continuous spiral structure. The clamp ring 702 is connected with the tube sheet 701 by snapping. The diameter of the clamp ring 702 is equal to the diameter of the insertion hole 705, and the diameter of the tube bundle 5 is smaller than the diameter of the clamp ring 702.

[0031] Specifically, Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the tube bundle 5 is arranged in a U-shaped structure, and the diameter of the through hole 706 is equal to the diameter of the tube bundle 5. When the installation mechanism 7 is inserted into the tube bundle 5, it can be assembled with a plurality of tube bundles 5, and then when the tube bundle 5 is inserted into the shell 1, the installation mechanism 7 can be assembled, so as to facilitate the disassembly and assembly of the tube bundle 5, that is: the operator can first sleeve a plurality of baffles 703 on the side wall of the tube bundle 5. Since the baffles 703 are arranged in a spiral structure, the fluid flows in a continuous spiral in the shell 1, which can reduce the flow dead zone and the scaling dead corner, and is conducive to improving the heat exchange effect of the tube bundle 5; when the baffles 703 are assembled, the tube sheet 701 is inserted into the end of the tube bundle 5, and the tube sheet 701 contacts the end of a baffle 703. , so that several baffles 703 are in a state of mutual conflict after being fixed; then the tube bundle 5 and the baffle 703 are placed into the shell 1. Since the diameter of the tube sheet 701 is equal to the diameter of the shell 1, when the shell 1 and the sealing ring 704 sleeved in the tube sheet 701 conflict, the sealing effect inside the shell 1 can be improved; the tube sheet 701 can be installed on the shell 1 by fixing bolts, and then the clamping ring 702 is clamped into the insertion hole 705 provided in the tube sheet 701, so that the clamping ring 702 can conflict with the end of the tube bundle 5. The setting of the clamping ring 702 can effectively prevent fluid leakage, and the clamping ring 702 can effectively prevent the leakage of the fluid between the tube bundle 5 and the tube sheet 701, ensuring the normal operation of the heat exchanger and avoiding fluid mixing or contamination.

[0032] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the main body mechanism 2 includes a water inlet pipe 201 and a support 202, two supports 202 are symmetrically fixedly connected to the shell 1, the shell 1 is connected with the water inlet pipe 201, and a gasket 203 is snap-fitted and installed on the shell 1. The gasket 203 is located at one end of the shell 1 away from the tube sheet 701, and the diameter of the gasket 203 is equal to the inner diameter of the shell 1.

[0033] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, the fixing mechanism 3 includes a front end pipe box 302 and a liquid outlet pipe 303. The shell 1 and the tube sheet 701 are fixedly connected with the front end pipe box 302 by bolts. The liquid inlet pipe 301 and the liquid outlet pipe 303 are fixedly installed on the front end pipe box 302. The front end pipe box 302 is fixedly connected with a partition plate 304. The partition plate 304 divides the interior of the front end pipe box 302 into two. The front end pipe box 302 is connected to the interior of the tube bundle 5 through the tube sheet 701.

[0034] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the connecting mechanism 4 includes a rear end pipe box 401 and a water outlet pipe 402. The rear end pipe box 401 is fixedly installed at one end of the shell 1 away from the tube sheet 701. The water outlet pipe 402 is fixedly connected to the rear end pipe box 401. The hot fluid is discharged into the tube bundle 5 through the fixing mechanism 3, and then heat is exchanged through the cold fluid in the main mechanism 2, so that the fluid after heat exchange can be discharged from the tube bundle 5, that is, when the heat exchanger is used, the hot fluid is discharged from the liquid inlet pipe 301 to the inside of the front end pipe box 302. Due to the setting of the partition plate 304, the hot fluid can be discharged into the inside of the tube bundle 5 through the tube sheet 701. At this time, the cold fluid is discharged into the inside of the shell 1 through the water inlet pipe 201. The cold fluid passes through the The baffle plate 703 installed on the tube bundle 5 has a spiral shape, which changes the flow direction and speed of the fluid, making the fluid flow more uniform and avoiding the phenomenon of excessively high or low local flow velocity, thereby optimizing the flow state of the fluid; and the cold fluid forms a vortex flow during the flow process, which increases the contact area between the fluid and the tube bundle 5, while reducing the dead zone of flow and heat transfer, thereby significantly improving the heat transfer coefficient; the hot fluid after heat exchange is discharged to the bottom end of the front end pipe box 302 through the tube bundle 5, and is discharged from the inside of the heat exchanger through the liquid outlet pipe 303; when discharging the cold fluid, the cold fluid can be discharged from the inside of the shell 1 through the outlet pipe 402 fixed on the rear end pipe box 401.

[0035] Specifically, Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Fig. 9 As shown, the sealing mechanism 6 includes a sealing gasket 602 and a slot 603. The central part of the tube sheet 701 is provided with a slot 603, and the sealing gasket 602 is bonded to the slot 603. The partition plate 304 is fixedly connected with a clamping plate 601, and the clamping plate 601 and the sealing gasket 602 are clamped and connected. When the fixing mechanism 3 is installed, it can drive the sealing mechanism 6 to clamp into the installation mechanism 7, and then the sealing performance between the fixing mechanism 3 and the installation mechanism 7 can be improved by the sealing mechanism 6, which is conducive to preventing the mixing of the cold and hot fluids in the fixing mechanism 3, that is, after the tube sheet 701 is fixed, the end of the front end tube box 302 is aligned with the tube sheet 701, and the tube sheet 701 can be fixed to the front end tube box 30 by fixing bolts. 2 and the shell 1, a partition plate 304 is fixed in the front end tube box 302, and a clamping plate 601 is fixedly connected to the partition plate 304. When the front end tube box 302 does not conflict with the tube sheet 701, the clamping plate 601 can be clamped into the inside of the tube sheet 701. Since a clamping groove 603 is provided at the center of the tube sheet 701, and a sealing gasket 602 is bonded to the clamping groove 603, when the front end tube box 302 contacts the tube sheet 701, the clamping plate 601 will conflict with the sealing gasket 602 at the clamping groove 603, thereby making the clamping plate 601 and the sealing gasket 602 increase the contact area between the partition plate 304 and the tube sheet 701, thereby facilitating the improvement of the sealing performance between the front end tube box 302 and the tube sheet 701, and facilitating the prevention of mixing of cold and hot fluids.

[0036] When the present invention is used, first, the operator can sleeve a plurality of baffles 703 on the side wall of the tube bundle 5. Since the baffles 703 are arranged in a spiral structure, the fluid flows in a continuous spiral in the shell 1, which can reduce the flow dead zone and the scaling dead corner, and is conducive to improving the heat exchange effect of the tube bundle 5. After the baffles 703 are assembled, the tube sheet 701 is clamped to the end of the tube bundle 5. The tube sheet 701 contacts the end of one baffle 703, so that the plurality of baffles 703 are in a state of mutual conflict after being fixed. Then, the tube bundle 5 and the baffles 703 are placed inside the shell 1. Since the diameter of the tube sheet 701 is equal to the diameter of the shell 1, when the shell 1 and the sealing ring 704 sleeved in the tube sheet 701 collide with each other, the sealing effect inside the shell 1 can be improved; the tube sheet 701 can be installed on the shell 1 by fixing bolts, and then the clamping ring 702 is clamped into the insertion hole 705 provided in the tube sheet 701, so that the clamping ring 702 can collide with the end of the tube bundle 5. The setting of the clamping ring 702 can effectively prevent fluid leakage, and the clamping ring 702 can effectively prevent the leakage of the fluid between the tube bundle 5 and the tube sheet 701, thereby ensuring the normal operation of the heat exchanger and avoiding fluid mixing or contamination;

[0037] After the tube sheet 701 is fixed, the end of the front end tube box 302 is aligned with the tube sheet 701, and the tube sheet 701 can be fixed to the middle part of the front end tube box 302 and the shell 1 by fixing bolts. A partition plate 304 is fixed in the front end tube box 302, and a clamping plate 601 is fixedly connected to the partition plate 304. When the front end tube box 302 does not conflict with the tube sheet 701, the clamping plate 601 can be clamped into the inside of the tube sheet 701. Since a clamping groove 603 is provided at the center of the tube sheet 701, and a sealing gasket 602 is bonded to the clamping groove 603, the front end tube box 302 contacts the tube sheet 701, and the clamping plate 601 will conflict with the sealing gasket 602 at the clamping groove 603, so that the clamping plate 601 and the sealing gasket 602 increase the contact area between the partition plate 304 and the tube sheet 701, which is beneficial to improve the sealing between the front end tube box 302 and the tube sheet 701, and is beneficial to prevent the mixing of cold and hot fluids.

[0038] When the heat exchanger is used, the hot fluid is discharged from the liquid inlet pipe 301 to the interior of the front end tube box 302. Due to the setting of the partition plate 304, the hot fluid can be discharged to the interior of the tube bundle 5 through the tube sheet 701. At this time, the cold fluid is discharged to the interior of the shell 1 through the water inlet pipe 201. The cold fluid passes through the baffle 703 installed on the tube bundle 5. The spiral baffle 703 changes the flow direction and speed of the fluid, making the fluid flow more uniform, avoiding the phenomenon of excessively high or too low local flow rate, thereby optimizing the flow state of the fluid; and the cold fluid forms a vortex flow during the flow process, which increases the contact area between the fluid and the tube bundle 5 and reduces the dead zone of flow and heat transfer, thereby significantly improving the heat transfer coefficient; the hot fluid after heat exchange is discharged to the bottom end of the front end tube box 302 through the tube bundle 5, and discharged from the interior of the heat exchanger through the liquid outlet pipe 303; when discharging the cold fluid, the cold fluid can be discharged from the interior of the shell 1 through the water outlet pipe 402 fixed on the rear end tube box 401.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high efficiency heat exchanger, characterized in that: The invention comprises a shell (1), on which a main body mechanism (2) is installed; two ends of the shell (1) are respectively connected with a fixing mechanism (3) and a connecting mechanism (4); a mounting mechanism (7) is engaged with the shell (1); a plurality of tube bundles (5) are inserted in the mounting mechanism (7); a sealing mechanism (6) is installed between the fixing mechanism (3) and the mounting mechanism (7); The mounting mechanism (7) comprises a tube sheet (701) and a clamping ring (702); one end of the shell (1) contacts the tube sheet (701); a plurality of groups of insertion holes (705) are provided in the tube sheet (701); the clamping ring (702) is mounted on the insertion holes (705); a plurality of tube bundles (5) are mounted in the tube sheet (701); the clamping ring (702) contacts the end of the tube bundle (5); a plurality of baffles (703) are mounted on the tube bundle (5); the baffles (703) are connected in a clamping manner to the shell (1); a sealing ring (704) is sleeved on the side of the tube sheet (701) away from the clamping ring (702); the sealing ring (704) contacts the end of the shell (1); and a plurality of through holes (706) are provided in the baffle (703).

2. A high efficiency heat exchanger according to claim 1, characterized in that: The tube sheet (701) abuts against the end of a baffle (703), and a plurality of baffles (703) are arranged in a continuous spiral structure.

3. A high-efficiency heat exchanger according to claim 1, characterized in that: The clamping ring (702) is snap-fitted to the tube sheet (701); the diameter of the clamping ring (702) is equal to the diameter of the insertion hole (705); and the diameter of the tube bundle (5) is smaller than the diameter of the clamping ring (702).

4. A high efficiency heat exchanger according to claim 1, characterized in that: The tube bundle (5) is arranged in a U-shaped structure, and the diameter of the through hole (706) is equal to the diameter of the tube bundle (5).

5. The high-efficiency heat exchanger according to claim 1, characterized in that: The main body mechanism (2) comprises a water inlet pipe (201) and a support (202); two supports (202) are symmetrically fixedly connected to the shell (1); the shell (1) is connected to the water inlet pipe (201); and a gasket (203) is snap-fitted and installed on the shell (1).

6. A high-efficiency heat exchanger according to claim 5, characterized in that: The gasket (203) is located at one end of the shell (1) away from the tube sheet (701), and the diameter of the gasket (203) is equal to the inner diameter of the shell (1).

7. A high-efficiency heat exchanger according to claim 1, characterized in that: The fixing mechanism (3) comprises a front end pipe box (302) and a liquid outlet pipe (303); the housing (1) and the tube sheet (701) are fixedly connected with the front end pipe box (302) by bolts; the front end pipe box (302) is fixedly mounted with a liquid inlet pipe (301) and a liquid outlet pipe (303); and the front end pipe box (302) is fixedly connected with a range partition (304).

8. A high-efficiency heat exchanger according to claim 7, characterized in that: The partition plate (304) divides the interior of the front end tube box (302) into two parts. The front end tube box (302) is connected to the interior of the tube bundle (5) through the tube sheet (701).

9. The high-efficiency heat exchanger according to claim 1, characterized in that: The connection mechanism (4) comprises a rear end pipe box (401) and a water outlet pipe (402); the rear end pipe box (401) is fixedly mounted on one end of the shell (1) away from the tube sheet (701); and the water outlet pipe (402) is fixedly connected to the rear end pipe box (401).

10. A high-efficiency heat exchanger according to claim 7, characterized in that: The sealing mechanism (6) comprises a sealing gasket (602) and a clamping groove (603). The central portion of the tube sheet (701) is provided with a clamping groove (603). The sealing gasket (602) is bonded to the clamping groove (603). The partition plate (304) is fixedly connected with a clamping plate (601). The clamping plate (601) and the sealing gasket (602) are clamped and connected.

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