Series plate type heat exchanger unit

Abstract

The utility model relates to the field of heat exchange units, and discloses a series plate type heat exchange unit which comprises a rack, the rear end of the upper surface of the rack is fixedly connected with a moving mechanism, the moving mechanism comprises a fixing rod, and the upper end of the outer wall of the front end of the fixing rod is fixedly connected with an upper transverse rod. A lower transverse rod is fixedly connected to the lower end of the outer wall of the front end of the fixing rod, a sliding groove is formed in the rear end of the upper surface of the lower transverse rod, and a hydraulic cylinder is arranged in the fixing rod. According to the device, the hydraulic cylinder is arranged, the heat exchanger of the device can be directly moved out through the hydraulic cylinder, the heat exchanger can be integrally removed through the idler wheels and the sliding grooves at the lower end of the fixing plate, then the heat exchange plate can be disassembled, maintained and replaced, after maintenance is completed, the hydraulic cylinder is started, and the heat exchanger can be pushed back to the original position; and the pipeline and the connecting flange only need to be fixed again, so that the working burden of a user can be reduced, and the use convenience of the equipment is also improved.

Description

Technical Field

[0001] The utility model relates to the field of heat exchange units, in particular to a series plate heat exchange unit. Background Art

[0002] The plate heat exchange unit is a type of heat exchange unit. Its characteristic is that it uses a plate heat exchanger. Under the same pressure loss condition, the heat transfer coefficient of the plate heat exchanger is 3 to 5 times higher than that of the tubular heat exchanger, the floor area is one-third of that of the tubular heat exchanger, and the heat recovery rate is high. When one or more plate heat exchangers are connected together in sequence, a series configuration of the plate heat exchanger is formed. This configuration is mainly used in application scenarios that need to process multiple different temperature fluids, generally in situations where there is a temperature crossover between hot and cold fluids, a relatively large heat load, and sufficient heat recovery is required.

[0003] Currently, most plate heat exchange units need to disassemble the entire heat exchanger for maintenance or replacement. The disassembly process is relatively cumbersome, time-consuming and laborious. Moreover, most current plate heat exchange units do not have an exhaust device, which may lead to unstable water pressure in the pipeline and also reduce the heat exchange efficiency in the heat exchanger.

[0004] Therefore, the technical personnel in this field provide a series plate heat exchange unit to solve the problems raised in the above background art. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a series plate heat exchange unit is proposed. This device is provided with a hydraulic cylinder. Through the hydraulic cylinder, the heat exchanger of this device can be directly moved out. Through the rollers at the lower end of the fixing plate and the sliding groove, the whole heat exchanger can be removed. Subsequently, the heat exchange plates can be disassembled, maintained and replaced. After the maintenance is completed, start the hydraulic cylinder, and the heat exchanger can be pushed back to its original position. It only needs to fix the pipeline and the connecting flange again, which can reduce the workload of the users and also improve the convenience of using this equipment.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A series plate heat exchange unit, comprising a frame. At the rear end of the upper surface of the frame, a moving mechanism is fixedly connected. The moving mechanism includes a fixed rod. At the upper end of the outer wall of the front end of the fixed rod, an upper cross bar is fixedly connected. At the lower end of the outer wall of the front end of the fixed rod, a lower cross bar is fixedly connected. A chute is provided at the rear end of the upper surface of the lower cross bar. A hydraulic cylinder is arranged inside the fixed rod. The output end of the hydraulic cylinder is fixedly connected with a connecting plate. The outer wall of the front end of the connecting plate is fixedly connected with a rear plate. The outer wall of the front end of the rear plate is fixedly connected with a fixing plate. A roller is rotatably connected to the middle of the lower surface of the fixing plate. A plurality of heat exchange plates are arranged on the outer wall of the front end of the fixing plate. A plurality of support rods are arranged around the outer wall of the front end of the fixing plate. A support frame is arranged on the lower surface of the heat exchange plate. At the outer wall of the front end of one side of the support rod, a first front plate is arranged;

[0008] At the outer wall of the front end of the support rod on the other side, a second front plate is arranged. A plurality of connection through holes are arranged on the outer walls of the front ends of the first front plate and the second front plate. A connection flange is fixedly connected to the front end of the inner wall of the connection through hole. On one side of the front end of the upper surface of the frame, a hot water pump and a cold water pump are respectively fixedly connected. The input end of the hot water pump is fixedly connected with a first butterfly valve;

[0009] An exhaust mechanism is arranged at the output end of the hot water pump. The exhaust mechanism includes a housing, a fixed frame, a floating ball, a support column, a filter screen, a cover plate, and a gasket. The rear end of the exhaust mechanism is fixedly connected with a first filter valve. The rear end of the first filter valve is fixedly connected with a temperature detection valve. One end of the temperature detection valve away from the first filter valve is fixedly connected with a primary hot water inlet pipe. The input end of the cold water pump is fixedly connected with a second butterfly valve. An exhaust mechanism is arranged at the output end of the cold water pump. One end of the exhaust mechanism away from the cold water pump is fixedly connected with a second filter valve. The outer wall of the rear end of the second filter valve is fixedly connected with a primary cold water inlet pipe;

[0010] Through the above technical solution, the device is provided with a hydraulic cylinder. Through the hydraulic cylinder, the heat exchanger of the device can be directly moved out. Through the roller at the lower end of the fixing plate and the chute, the whole heat exchanger can be removed. Subsequently, the heat exchange plates can be disassembled, maintained, and replaced. After the maintenance is completed, start the hydraulic cylinder, and the heat exchanger can be pushed back to its original position. It only needs to fix the pipeline and the connection flange again, which can reduce the workload of the users and improve the convenience of using the equipment.

[0011] Furthermore, the fixed frame is fixedly connected to the middle of the inner wall of the housing. The floating ball is arranged on the upper surface of the fixed frame. The support column is fixedly connected to the upper surface of the housing. The filter screen is sleeved on the outer wall of the support column. The cover plate is fixedly connected to the upper surface of the support column. The gasket is fixedly connected to the inner top surface of the housing;

[0012] Through the above technical solution, when the water pump is started, the air in the pipeline will be discharged through the exhaust mechanism first. Subsequently, the water flow passes through the pipeline, and the water flow will lift the floating ball. The floating ball fits tightly with the gasket, preventing water from overflowing and also preventing the pipeline from being crushed by vacuum, which can extend the service life of the pipeline.

[0013] Further, the fixing rods are respectively fixedly connected to the center of the rear end of the upper surface of the frame;

[0014] Through the above technical solution, the moving mechanism can be fixed by setting the fixing rods.

[0015] Further, one side above the front end outer wall of the first front plate is fixedly connected with a second connecting pipe, and one end of the second connecting pipe away from the first front plate is fixedly connected to the second front plate;

[0016] Through the above technical solution, the cold water that has undergone the first heat exchange can undergo a second heat exchange through the second connecting pipe.

[0017] Further, one side below the front end outer wall of the first front plate is fixedly connected with a first connecting pipe, and one end of the first connecting pipe away from the first front plate is fixedly connected to the second front plate;

[0018] Through the above technical solution, the hot water that has undergone the first heat exchange can undergo a second heat exchange through the second connecting pipe.

[0019] Further, the outer walls of the front end of the second front plate are respectively fixedly connected with a secondary hot water outlet pipe and a secondary cold water outlet pipe;

[0020] Through the above technical solution, the water that has completed the heat exchange can flow out through the secondary hot water outlet pipe and the secondary cold water outlet pipe.

[0021] Further, the rollers roll in the chute;

[0022] Through the above technical solution, the heat exchange plate can be moved.

[0023] Further, an electric control cabinet is fixedly connected to one side of the front end of the upper surface of the frame;

[0024] Through the above technical solution, the overall operation of the device can be controlled through the electric control cabinet.

[0025] The utility model has the following beneficial effects:

[0026] 1. A series plate heat exchanger unit proposed by the present utility model is provided with a hydraulic cylinder. Through the hydraulic cylinder, the heat exchanger of the device can be directly removed. Through the rollers and chutes at the lower end of the fixing plate, the whole heat exchanger can be removed. Subsequently, the heat exchange plates can be disassembled, maintained and replaced. After the maintenance is completed, by starting the hydraulic cylinder, the heat exchanger can be pushed back to its original position, and only the pipes and connecting flanges need to be fixed again, which can reduce the workload of the operators and improve the convenience of using the equipment.

[0027] 2. For a series plate heat exchanger unit proposed by the present utility model, when the water pump starts, the air in the pipes will be discharged first through the exhaust mechanism. Subsequently, when the water flows through the pipes, the water flow will lift the floating ball. The floating ball fits tightly with the gasket, preventing water from overflowing and also preventing the pipes from being crushed by vacuum, which can extend the service life of the pipes. Description of the Drawings

[0028] Figure 1 Isometric view of a series plate heat exchanger unit proposed by the present utility model;

[0029] Figure 2 Structural diagram of the hot water inlet pipe of a series plate heat exchanger unit proposed by the present utility model;

[0030] Figure 3 Structural diagram of the cold water inlet pipe of a series plate heat exchanger unit proposed by the present utility model;

[0031] Figure 4 Structural schematic diagram of a series plate heat exchanger unit proposed by the present utility model;

[0032] Figure 5 Structural diagram of the moving mechanism of a series plate heat exchanger unit proposed by the present utility model;

[0033] Figure 6 Rear view cross-sectional view of a series plate heat exchanger unit proposed by the present utility model;

[0034] Figure 7 Cross-sectional view of the exhaust valve of a series plate heat exchanger unit proposed by the present utility model.

[0035] Legend Explanation:

[0036] 1. Frame; 2. Moving mechanism; 201. Hydraulic cylinder; 202. Connecting plate; 204. Heat exchange plate; 205. Fixed plate; 206. Rear plate; 207. Fixed rod; 208. Chute; 209. Support frame; 2010. Lower cross bar; 2011. Upper cross bar; 2012. Roller; 2013. First front plate; 2014. Second front plate; 3. First filter valve; 4. Temperature detection valve; 5. Support rod; 6. Connecting flange; 7. Primary hot water inlet pipe; 8. Hot water pump; 9. Exhaust mechanism; 901. Housing; 902. Fixed frame; 903. Float ball; 904. Support column; 905. Filter screen; 906. Cover plate; 907. Gasket; 10. First butterfly valve; 11. Electric control cabinet; 12. Secondary hot water outlet pipe; 13. First connecting pipe; 14. Connecting through hole; 15. Second filter valve; 16. Primary cold water inlet pipe; 17. Secondary cold water outlet pipe; 18. Second connecting pipe; 19. Cold water pump; 20. Second butterfly valve. Detailed implementation manner

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Referring to Figure 1-7 , an embodiment provided by the present invention:

[0039] A series plate heat exchange unit includes a frame 1. The rear end of the upper surface of the frame 1 is fixedly connected with a moving mechanism 2. The moving mechanism 2 includes a fixed rod 207. The upper end of the outer wall of the front end of the fixed rod 207 is fixedly connected with an upper cross bar 2011. The lower end of the outer wall of the front end of the fixed rod 207 is fixedly connected with a lower cross bar 2010. A chute 208 is opened at the rear end of the upper surface of the lower cross bar 2010. A hydraulic cylinder 201 is arranged inside the fixed rod 207. The output end of the hydraulic cylinder 201 is fixedly connected with a connecting plate 202. The outer wall of the front end of the connecting plate 202 is fixedly connected with a rear plate 206. The outer wall of the front end of the rear plate 206 is fixedly connected with a fixed plate 205. The middle part of the lower surface of the fixed plate 205 is rotatably connected with a roller 2012. A plurality of heat exchange plates 204 are arranged on the outer wall of the front end of the fixed plate 205. A plurality of support rods 5 are arranged around the outer wall of the front end of the fixed plate 205. A support frame 209 is arranged on the lower surface of the heat exchange plate 204. A first front plate 2013 is arranged on the outer wall of the front end of one side of the support rod 5;

[0040] On the outer wall of the front end of the other support rod 5, a second front plate 2014 is provided. On the outer walls of the front ends of the first front plate 2013 and the second front plate 2014, a plurality of connection through holes 14 are provided. At the front end of the inner wall of the connection through hole 14, a connection flange 6 is fixedly connected. On one side of the front end of the upper surface of the frame 1, a hot water pump 8 and a cold water pump 19 are respectively fixedly connected. The input end of the hot water pump 8 is fixedly connected with a first butterfly valve 10;

[0041] An exhaust mechanism 9 is provided at the output end of the hot water pump 8. The exhaust mechanism 9 includes a housing 901, a fixing frame 902, a floating ball 903, a support column 904, a filter screen 905, a cover plate 906, and a gasket 907. The rear end of the exhaust mechanism 9 is fixedly connected with a first filter valve 3. The rear end of the first filter valve 3 is fixedly connected with a temperature detection valve 4. One end of the temperature detection valve 4 away from the first filter valve 3 is fixedly connected with a primary hot water inlet pipe 7. The input end of the cold water pump 19 is fixedly connected with a second butterfly valve 20. An exhaust mechanism 9 is provided at the output end of the cold water pump 19. One end of the exhaust mechanism 9 away from the cold water pump 19 is fixedly connected with a second filter valve 15. The outer wall of the rear end of the second filter valve 15 is fixedly connected with a primary cold water inlet pipe 16.

[0042] The device is provided with a hydraulic cylinder 201. Through the hydraulic cylinder 201, the heat exchanger of the device can be directly moved out. Through the rollers 2012 at the lower end of the fixing plate 205 and the sliding groove 208, the whole heat exchanger can be removed. Subsequently, the heat exchange plate 204 can be disassembled, maintained and replaced. After the maintenance is completed, starting the hydraulic cylinder 201 can push the heat exchanger back to its original position. It only needs to fix the pipeline and the connection flange 6 again, which can reduce the burden on the operators and improve the convenience of using the equipment.

[0043] The fixing frame 902 is fixedly connected to the middle of the inner wall of the outer shell 901. The floating ball 903 is arranged on the upper surface of the fixing frame 902. The support column 904 is fixedly connected to the upper surface of the outer shell 901. The filter screen 905 is sleeved on the outer wall of the support column 904. The cover plate 906 is fixedly connected to the upper surface of the support column 904. The gasket 907 is fixedly connected to the inner top surface of the outer shell 901. After the water pump is started, the air in the pipeline will first be discharged through the exhaust mechanism 9. Subsequently, the water flow passes through the pipeline, and the water flow will lift the floating ball 903. The floating ball 903 is in close contact with the gasket 907, which can prevent water from overflowing and also prevent the pipeline from being crushed by vacuum, thereby improving the service life of the pipeline. The fixing rods 207 are respectively fixedly connected to the center of the rear end of the upper surface of the frame 1. By setting the fixing rods 207, the moving mechanism 2 can be fixed. One side above the front end outer wall of the first front plate 2013 is fixedly connected with a second connecting pipe 18. The end of the second connecting pipe 18 away from the first front plate 2013 is fixedly connected to the second front plate 2014. Through the second connecting pipe 18, the cold water that has undergone the first heat exchange can undergo the second heat exchange. One side below the front end outer wall of the first front plate 2013 is fixedly connected with a first connecting pipe 13. The end of the first connecting pipe 13 away from the first front plate 2013 is fixedly connected to the second front plate 2014. Through the second connecting pipe 18, the hot water that has undergone the first heat exchange can undergo the second heat exchange. The outer walls of the front end of the second front plate 2014 are respectively fixedly connected with a secondary hot water outlet pipe 12 and a secondary cold water outlet pipe 17. Through the secondary hot water outlet pipe 12 and the secondary cold water outlet pipe 17, the water that has completed the heat exchange can flow out. The roller 2012 rolls in the chute 208, which can move the heat exchange plate 204. One side of the front end of the upper surface of the frame 1 is fixedly connected with an electric control cabinet 11. Through the electric control cabinet 11, the overall operation of the device can be controlled.

[0044] Working principle: After the device is installed, start the cold water pump 19 and the hot water pump 8. The pumps send water into the pipeline. The air in the pipeline will first be discharged through the exhaust mechanism 9. Subsequently, the water flow passes through the pipeline, and the water flow will lift the floating ball 903. The floating ball 903 fits tightly with the gasket 907, preventing water from overflowing and also preventing the pipeline from being crushed by vacuum, which can improve the service life of the pipeline. Then, through the first filter valve 3 and the second filter valve 15, impurities in the water are filtered. Finally, the water flows to the heat exchange plate 204 for heat exchange through the heat exchange plate 204, and then flows out through the water outlet. When the device needs to replace the heat exchange plate 204, stop the water pump, close the butterfly valve. After unlocking the connecting flange 6, start the hydraulic cylinder 201. Through the hydraulic cylinder 201, the fixing plate 205 and the heat exchange plate 204 of the device can be directly removed. Through the rollers 2012 at the lower end of the fixing plate 205 and the chute 208, the whole heat exchanger can be removed. Subsequently, the heat exchange plate 204 can be disassembled, maintained and replaced. After the maintenance is completed, start the hydraulic cylinder 201, and the heat exchanger can be pushed back to its original position. It only needs to fix the pipeline and the connecting flange 6 again. Moreover, the front end of the support frame 209 is clamped and matched with the front plate, which can reduce the workload of the user and also improve the convenience of using the device.

[0045] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A series plate heat exchange unit, comprising a frame (1), characterized in that: A moving mechanism (2) is fixedly connected to the rear end of the upper surface of the frame (1). The moving mechanism (2) includes a fixed rod (207). The upper end of the outer wall of the front end of the fixed rod (207) is fixedly connected to an upper cross bar (2011). The lower end of the outer wall of the front end of the fixed rod (207) is fixedly connected to a lower cross bar (2010). A chute (208) is provided at the rear end of the upper surface of the lower cross bar (2010). A hydraulic cylinder (201) is arranged inside the fixed rod (207). The output end of the hydraulic cylinder (201) is fixedly connected to a connecting plate (202). The outer wall of the front end of the connecting plate (202) is fixedly connected to a rear plate (206). The outer wall of the front end of the rear plate (206) is fixedly connected to a fixing plate (205). A roller (2012) is rotatably connected to the middle of the lower surface of the fixing plate (205). A plurality of heat exchange plates (204) are arranged on the outer wall of the front end of the fixing plate (205). A plurality of support rods (5) are arranged around the outer wall of the front end of the fixing plate (205). A support frame (209) is arranged on the lower surface of the heat exchange plate (204). A first front plate (2013) is arranged on the outer wall of the front end of one of the support rods (5). A second front plate (2014) is arranged on the outer wall of the front end of the other support rod (5). A plurality of connection through holes (14) are arranged on the outer walls of the front ends of the first front plate (2013) and the second front plate (2014). A connection flange (6) is fixedly connected to the front end of the inner wall of the connection through hole (14). A hot water pump (8) and a cold water pump (19) are respectively fixedly connected to one side of the front end of the upper surface of the frame (1). The input end of the hot water pump (8) is fixedly connected to a first butterfly valve (10). An exhaust mechanism (9) is arranged at the output end of the hot water pump (8). The exhaust mechanism (9) includes a housing (901), a fixing frame (902), a floating ball (903), a support column (904), a filter screen (905), a cover plate (906), and a gasket (907). A first filter valve (3) is fixedly connected to the rear end of the exhaust mechanism (9). A temperature detection valve (4) is fixedly connected to the rear end of the first filter valve (3). A primary hot water inlet pipe (7) is fixedly connected to the end of the temperature detection valve (4) far from the first filter valve (3). A second butterfly valve (20) is fixedly connected to the input end of the cold water pump (19). An exhaust mechanism (9) is arranged at the output end of the cold water pump (19). A second filter valve (15) is fixedly connected to the end of the exhaust mechanism (9) far from the cold water pump (19). A primary cold water inlet pipe (16) is fixedly connected to the outer wall of the rear end of the second filter valve (15).

2. The series plate heat exchange unit according to claim 1, characterized in that: The fixing bracket (902) is fixedly connected to the middle of the inner wall of the outer shell (901), the floating ball (903) is arranged on the upper surface of the fixing bracket (902), the support column (904) is fixedly connected to the upper surface of the outer shell (901), the filter screen (905) is sleeved on the outer wall of the support column (904), the cover plate (906) is fixedly connected to the upper surface of the support column (904), and the gasket (907) is fixedly connected to the inner top surface of the outer shell (901).

3. A series plate heat exchange unit according to claim 1, characterized in that: The fixing rods (207) are respectively fixedly connected to the center of the rear end of the upper surface of the machine frame (1).

4. A series plate heat exchanger unit according to claim 1, characterized in that: One side above the front outer wall of the first front plate (2013) is fixedly connected with a second connecting pipe (18), and one end of the second connecting pipe (18) far away from the first front plate (2013) is fixedly connected with the second front plate (2014).

5. A series plate heat exchange unit according to claim 1, wherein: One side below the front outer wall of the first front plate (2013) is fixedly connected with a first connecting pipe (13), and one end of the first connecting pipe (13) far away from the first front plate (2013) is fixedly connected with the second front plate (2014).

6. A series plate heat exchanger unit according to claim 1, characterized in that: The outer walls of the front ends of the second front plates (2014) are respectively fixedly connected with a secondary hot water outlet pipe (12) and a secondary cold water outlet pipe (17).

7. A series plate heat exchanger unit according to claim 1, characterized in that: The rollers (2012) roll in the sliding grooves (208).

8. A series plate heat exchange unit according to claim 1, characterized in that: One side of the front end of the upper surface of the machine frame (1) is fixedly connected with an electric control cabinet (11).

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