Heat exchanger capable of being cleaned without shutdown

Abstract

The utility model discloses a heat exchanger capable of being cleaned without shutdown, and particularly relates to the technical field of heat exchangers, the heat exchanger comprises a plate heat exchanger body, and a water inlet and a water outlet are respectively arranged on two sides of the plate heat exchanger body. The end cover can be conveniently and quickly detached, the operation is convenient, and the detaching efficiency is improved; during operation of equipment, impurities in cooling water are intercepted through the Y-shaped filter, blockage caused by the fact that the impurities enter the heat exchanger is avoided, when the heat exchanger is seriously blocked, the valve II is opened, the valve I is closed, and water passes through a pipeline where the valve II is located, so that the filter cartridge can be taken out to be cleaned, and the condition that a water feeding pump is frequently started and stopped is eliminated. Safe operation of the water feeding pump is guaranteed, and the economical efficiency of equipment is improved; through the limiting assembly, the driving ring can be limited and fixed, and the situation that the driving ring rotates accidentally, and the connecting and fixing effect between the end cover and the Y-shaped filter is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger which can be cleaned without stopping the machine. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchanger plays an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchanger can be used as heater, cooler, condenser, evaporator and reboiler, etc., and is widely used; according to the structure, it can be divided into: floating head heat exchanger, fixed tube sheet heat exchanger, U-shaped tube sheet heat exchanger, plate heat exchanger, etc. Heat exchanger is widely used. For example, in the lubrication system of boiler feed water pump in thermal power plant, the oil cooler of feed water pump oil system of plate heat exchanger is used to cool down. Because the cooling water is not designed as closed water and the water quality is poor, the heat exchange effect will be poor due to the accumulation of debris in the heat exchanger after a short operation. Therefore, the temperature of the oil system rises and reaches the alarm value, affecting the safety of equipment operation. Therefore, Y-type filter is used to filter water before it enters the heat exchanger to prevent debris from entering the heat exchanger and affecting its use.

[0003] At present, when using a Y-type filter to filter debris in water, a filter cartridge is provided at one end thereof and the end cover is connected and fixed to one end of the water filter by bolts, thereby limiting the installation position of the filter cartridge and facilitating the removal of the end cover for cleaning. However, the installation method using multiple bolts requires the bolts to be twisted one by one to be disassembled, which is cumbersome to operate, inconvenient to use, and relatively poor in practicality. Utility Model Content

[0004] The purpose of the utility model is to provide a heat exchanger which can be cleaned without stopping the machine, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a heat exchanger that can be cleaned without stopping the machine, comprising a plate heat exchanger body, and a water inlet and a water outlet are respectively arranged on both sides of the plate heat exchanger body, one end of the water inlet of the plate heat exchanger body is connected to two valves one and a Y-type filter through a pipeline, and the Y-type filter is arranged between the two valves one, a valve two is arranged behind the Y-type filter, and the two ends of the valve two are respectively connected to the pipeline connected to the opposite outer ends of the two valves one through pipelines, a filter cartridge is arranged on the inner side of the lower part of the Y-type filter, the lower end of the Y-type filter is connected to an end cover through a fixing mechanism, a limit assembly is arranged on one side of the end cover, the fixing mechanism comprises a mounting disk, and the mounting disk is sleeved on the outer side of the lower end of the Y-type filter, a threaded barrel is rotatably embedded and installed on one end of the mounting disk, and the threaded barrel passes through the mounting disk, a screw is threadedly connected to the inner side of the threaded barrel, and one end of the screw is fixedly connected to the end cover.

[0006] Furthermore, the fixing mechanism also includes a driving ring, and the driving ring is rotatably sleeved and installed on the outer side of the lower part of the Y-type filter. A gear ring is fixedly installed on the inner wall of the driving ring. A transmission ring is sleeved on the outer wall of one end of the threaded barrel on the inner side of the driving ring. A plurality of tooth grooves meshing with the gear ring are opened on the outer wall of the transmission ring. Through the fixing mechanism, multiple threaded barrels can be conveniently and synchronously driven to rotate, thereby synchronously separating multiple screws and threaded barrels, thereby improving disassembly efficiency, being convenient to use, and being more practical.

[0007] Furthermore, the limiting assembly includes a transmission box, and the transmission box is fixedly installed on one side of the end cover, a torsion bar is rotatably installed in the transmission box, and one end of the torsion bar is connected to a handle outside the transmission box, the outer wall of the torsion bar is symmetrically provided with support rods, and the relatively outer end of the support rod is movably connected to the transmission rod through a connecting rod, one end of the transmission rod is connected to the outside of the transmission box with a clamping rod, one end of the clamping rod is clamped into a clamping groove provided on the outer wall of the drive ring, and a plurality of clamping grooves are provided, a torsion spring is sleeved on the outer side of the torsion bar in the transmission box, and both ends of the torsion spring are fixedly connected to the inner wall of the transmission box and the torsion bar respectively, and the position of the drive ring can be limited and fixed by the limiting assembly to avoid accidentally touching the drive ring and causing it to rotate, thereby affecting the connection between the end cover and the Y-type filter.

[0008] Furthermore, a plurality of handles are symmetrically provided on the outer wall of the driving ring, and the diameter of the driving ring is larger than the diameters of the mounting plate and the end cover, so that force can be applied to the driving ring through the handles to facilitate the rotation of the driving ring.

[0009] Furthermore, the threaded barrel is rotatably connected to the mounting plate via a bearing, a sealing ring is provided between the end cover and the Y-type filter, and the inner wall surface combination of the driving ring is in a convex shape so as to fix the threaded barrel without affecting its rotation. The use of the sealing ring ensures good sealing at the connection between the end cover and the Y-type filter.

[0010] Furthermore, the two ends of the connecting rod are respectively hinged to the support rod and the transmission rod, the clamping rod is a rectangular columnar structure, and a plurality of the clamping grooves are arranged in a circular equidistant array to transmit power, so that the clamping rod is clamped into the clamping groove to limit the drive ring.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0012] 1. The utility model can synchronously drive multiple threaded barrels to rotate through a fixing mechanism, realize the separation between multiple threaded barrels and screws, and facilitate the quick disassembly of the end cover, which is easy to operate and improves the disassembly efficiency; and during the operation of the equipment, impurities in the cooling water are intercepted by the Y-type filter, avoiding blockage caused by entering the plate heat exchanger body. When the plate heat exchanger body is seriously blocked, open valve 2 and close valve 1 to allow water to pass through the pipeline where valve 2 is located, so that the filter cartridge can be taken out for cleaning, and the frequent start and stop of the water supply pump is eliminated, ensuring the safe operation of the water supply pump and improving the economic efficiency of the equipment;

[0013] 2. The utility model can limit and fix the driving ring through the limiting component to prevent it from accidentally rotating and affecting the connection and fixing effect between the end cover and the Y-type filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0017] Figure 3 It is a schematic diagram of the structure between the Y-type filter, the end cover and the drive ring of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure between the torsion bar and the clamping rod of the utility model;

[0019] Figure 5 It is a partial top view structural diagram between valve 1 and valve 2 of the utility model;

[0020] In the figure: 1. Plate heat exchanger body; 2. Valve 1; 3. Valve 2; 4. Y-type filter; 5. Mounting plate; 6. End cover; 7. Threaded barrel; 8. Screw; 9. Drive ring; 10. Gear ring; 11. Transmission ring; 12. Transmission box; 13. Torsion bar; 14. Support rod; 15. Connecting rod; 16. Transmission rod; 17. Clamp rod; 18. Torsion spring; 19. Clamp slot; 20. Handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 - Figure 5 A heat exchanger that can be cleaned without stopping the machine is shown, comprising a plate heat exchanger body 1, and a water inlet and a water outlet are respectively provided on both sides of the plate heat exchanger body 1, one end of the water inlet of the plate heat exchanger body 1 is connected to two valves 2 and a Y-type filter 4 through a pipeline, and the Y-type filter 4 is arranged between the two valves 2, a valve 2 3 is provided behind the Y-type filter 4, and both ends of the valve 2 3 are respectively connected to the pipelines connected to the opposite outer ends of the two valves 2 through pipelines, a filter cartridge is provided on the inner side of the lower part of the Y-type filter 4, the lower end of the Y-type filter 4 is connected to an end cover 6 through a fixing mechanism, a limit assembly is provided on one side of the end cover 6, the fixing mechanism comprises a mounting disk 5, and the mounting disk 5 is sleeved on the outer side of the lower end of the Y-type filter 4, a threaded barrel 7 is rotatably embedded and installed at one end of the mounting disk 5, and the threaded barrel 7 passes through the mounting disk 5, a screw 8 is threadedly connected to the inner side of the threaded barrel 7, and one end of the screw 8 is fixedly connected to the end cover 6. In this example, the fixing mechanism also includes a driving ring 9, and the driving ring 9 is rotatably sleeved and installed on the outer side of the lower part of the Y-type filter 4. A gear ring 10 is fixedly installed on the inner wall of the driving ring 9. A transmission ring 11 is sleeved on the outer wall of one end of the threaded tube 7 on the inner side of the driving ring 9. The outer wall of the transmission ring 11 is provided with a plurality of tooth grooves meshing with the gear ring 10. Through the fixing mechanism, multiple threaded tubes 7 can be conveniently and synchronously driven to rotate, thereby synchronously separating multiple screws 8 and threaded tubes 7, thereby improving disassembly efficiency, being convenient to use, and being more practical. In this example, the limiting assembly includes a transmission box 12, and the transmission box 12 is fixedly installed on one side of the end cover 6. A torsion bar 13 is rotatably installed in the transmission box 12, and one end of the torsion bar 13 is connected to a handle outside the transmission box 12. The outer wall of the torsion bar 13 is symmetrically provided with support rods 14, and the relatively outer end of the support rod 14 is movably connected to a transmission rod 16 through a connecting rod 15. One end of the transmission rod 16 is connected to a clamping rod 17 outside the transmission box 12, and one end of the clamping rod 17 is clamped into a clamping groove 19 provided on the outer wall of the drive ring 9, and the clamping groove 19 is provided with a plurality of them. A torsion spring 18 is sleeved on the outer side of the torsion bar 13 in the transmission box 12, and the two ends of the torsion spring 18 are respectively fixedly connected to the inner wall of the transmission box 12 and the torsion bar 13. The position of the drive ring 9 can be limited and fixed by the limiting assembly to avoid accidentally touching the drive ring 9 to cause it to rotate, thereby affecting the connection between the end cover 6 and the Y-type filter 4.

[0023] In this example, the outer wall of the driving ring 9 is symmetrically provided with a plurality of handles 20. The diameter of the driving ring 9 is larger than the diameter of the mounting plate 5 and the end cover 6, so that the driving ring 9 can be forcefully applied through the handles 20, and the driving ring 9 can be conveniently rotated. In this example, the threaded barrel 7 is rotatably connected to the mounting plate 5 through a bearing, and a sealing ring is provided between the end cover 6 and the Y-type filter 4. The inner wall surface of the driving ring 9 is combined in a convex shape, so as to fix the threaded barrel 7 without affecting its rotation. The use of the sealing ring maintains good sealing at the connection between the end cover 6 and the Y-type filter 4. In this example, the two ends of the connecting rod 15 are respectively hinged to the support rod 14 and the transmission rod 16, the clamping rod 17 is a rectangular columnar structure, and a plurality of clamping grooves 19 are arranged in a circumferentially equidistant array to transmit power, so that the clamping rod 17 is clamped into the clamping groove 19, and the driving ring 9 can be limited.

[0024] The working principle of the utility model is as follows: when in use, water is transported through a pipe connected to one end of a valve 2 away from one side of the plate heat exchanger body 1, and is introduced into the plate heat exchanger body 1 for heat exchange through valve 2 and Y-type filter 4 valve 2. When passing through the Y-type filter 4, impurities in the water can be filtered and intercepted to prevent them from entering the plate heat exchanger body 1 and affecting its use. When the Y-type filter 4 is blocked by filtering impurities, the two valves 12 can be closed and valve 2 3 can be opened at the same time, so that the transported water passes through the pipe connected to valve 2 3, thereby missing the position of valve 2 and Y-type filter 4, thereby avoiding stopping the water supply pump, and the filter cartridge in the Y-type filter 4 can be disassembled and taken out for cleaning. When the filter cartridge needs to be disassembled, the torsion rod 13 can be driven to rotate by twisting the handle, so that the torsion rod 13 twists the torsion spring 18, and the torsion rod 13 drives the support rod 14, and then the support rod 14 drives the connecting rod 15 to drive the transmission rod 16, so that the transmission rod 16 drives the clamping rod 17 to move relative to the The outer side of the clamping rod 17 is moved out of the clamping groove 19, and then the driving ring 9 is driven to rotate by the handle 20, so that the driving ring 9 drives the gear ring 10, and the gear ring 10 drives the transmission ring 11 to drive the threaded barrel 7 to rotate, so that the threaded barrel 7 drives the screw 8, so that the threaded barrel 7 drives the screw 8 to drive the end cover 6 to move away from the mounting plate 5, so that the end cover 6 is separated from the Y-type filter 4. After the end cover 6 is disassembled, the filter cartridge can be taken out and cleaned. It is easy to use and can drive multiple threaded barrels synchronously. 7 and the screw 8 are separated, so that the end cover 6 can be disassembled more efficiently and is easy to use. When the end cover 6 is connected to the Y-type filter 4, the above disassembly steps can be repeated to move the clamping rod 17 to the outside of the driving ring 9, and then one end of the screw 8 is inserted into the corresponding threaded barrel 7. At the same time, the driving ring 9 is driven to rotate by the handle 20, and then the threaded barrel 7 is driven to rotate, so that the threaded barrel 7 is connected to the screw 8, so that the end cover 6 is fitted with the mounting plate 5, and the connection and fixation of the end cover 6 and the Y-type filter 4 are completed. It is easy to use and has strong practicality.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat exchanger that can be cleaned without stopping the machine, comprising a plate heat exchanger body (1), wherein a water inlet and a water outlet are respectively provided on both sides of the plate heat exchanger body (1), and the characteristics are: One end of the water inlet of the plate heat exchanger body (1) is connected to two valves (2) and a Y-type filter (4) through a pipeline, and the Y-type filter (4) is arranged between the two valves (2). A valve (3) is arranged behind the Y-type filter (4), and both ends of the valve (3) are respectively connected to the pipeline connected to the opposite outer ends of the two valves (2) through pipelines. A filter cartridge is arranged on the inner side of the lower part of the Y-type filter (4), and the lower end of the Y-type filter (4) is connected to an end cover (6) through a fixing mechanism. A limit assembly is arranged on one side of the end cover (6), and the fixing mechanism comprises a mounting plate (5), and the mounting plate (5) is sleeved on the outer side of the lower end of the Y-type filter (4). A threaded cylinder (7) is rotatably embedded and installed at one end of the mounting plate (5), and the threaded cylinder (7) passes through the mounting plate (5). A screw rod (8) is threadedly connected to the inner side of the threaded cylinder (7), and one end of the screw rod (8) is fixedly connected to the end cover (6).

2. A heat exchanger that can be cleaned without stopping the machine according to claim 1, characterized in that: The fixing mechanism further comprises a driving ring (9), and the driving ring (9) is rotatably sleeved and installed on the outer side of the lower part of the Y-type filter (4), and a gear ring (10) is fixedly installed on the inner wall of the driving ring (9), and a transmission ring (11) is sleeved on the inner side of the driving ring (9) on the outer wall of one end of the threaded tube (7), and a plurality of tooth grooves meshing with the gear ring (10) are formed on the outer wall of the transmission ring (11).

3. A heat exchanger capable of being cleaned without stopping the machine according to claim 2, characterized in that: The limit assembly comprises a transmission box (12), and the transmission box (12) is fixedly mounted on one side of the end cover (6). A torsion bar (13) is rotatably mounted in the transmission box (12), and one end of the torsion bar (13) is connected to a handle outside the transmission box (12). A support rod (14) is symmetrically arranged on the outer wall of the torsion bar (13). One end of the support rod (14) is movably connected to a transmission rod (16) through a connecting rod (15) at a relatively outer side. One end of the transmission rod (16) is connected to a clamping rod (17) outside the transmission box (12). One end of the clamping rod (17) is clamped into a clamping groove (19) provided on the outer wall of the drive ring (9), and a plurality of clamping grooves (19) are provided. A torsion spring (18) is sleeved on the outer side of the torsion bar (13) inside the transmission box (12), and two ends of the torsion spring (18) are respectively fixedly connected to the inner wall of the transmission box (12) and the torsion bar (13).

4. The heat exchanger capable of being cleaned without stopping the machine according to claim 2, characterized in that: A plurality of handles (20) are symmetrically arranged on the outer wall of the driving ring (9), and the diameter of the driving ring (9) is larger than the diameters of the mounting plate (5) and the end cover (6).

5. The heat exchanger capable of being cleaned without stopping the machine according to claim 2, characterized in that: The threaded cylinder (7) is rotatably connected to the mounting plate (5) via a bearing, a sealing ring is provided between the end cover (6) and the Y-type filter (4), and the inner wall surface of the driving ring (9) is combined into a convex shape.

6. The heat exchanger capable of being cleaned without stopping the machine according to claim 3, characterized in that: The two ends of the connecting rod (15) are respectively hinged to the supporting rod (14) and the transmission rod (16); the clamping rod (17) is a rectangular columnar structure; and a plurality of clamping grooves (19) are distributed in a circumferentially equidistant array.

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