Anti-blocking device for plate heat exchanger

Abstract

The utility model provides a plate heat exchanger anti-blocking device and relates to the technical field of plate heat exchangers, the plate heat exchanger anti-blocking device comprises an anti-blocking pipe and a blow-off pipe, a filtering assembly, a cleaning assembly and a driving assembly are arranged in the anti-blocking pipe, the cleaning assembly is arranged at the water inlet end of the filtering assembly, and the blow-off pipe is arranged at the bottom of the anti-blocking pipe in a communicating mode; the sewage discharging pipe is located at the water inlet end of the filtering assembly, a sewage discharging assembly is arranged in the sewage discharging pipe, and the cleaning assembly and the sewage discharging assembly are both connected with the driving assembly; according to the device, the driving assembly is arranged, flowing of fluid in the anti-blocking pipe is used as driving power to drive the cleaning assembly and the pollution discharge assembly to work, additional driving equipment is not needed, and the cost is saved; according to the device, by arranging the cleaning assembly and the sewage discharging assembly, the filtering assembly is cleaned, impurities in the anti-blocking pipe are guided into the sewage discharging pipe, then the impurities are discharged, blockage caused by impurity accumulation is prevented, disassembly and cleaning are not needed, time and labor are saved, and use convenience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of plate heat exchangers, and in particular to an anti-blocking device for plate heat exchangers. Background Art

[0002] A plate heat exchanger is a high-efficiency heat exchanger made of a series of stacked metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and lightweight structure, small footprint, wide application and long service life. In order to prevent impurities in the fluid from entering the plate heat exchanger, most of them will install anti-blocking devices at the position of the water inlet pipe to filter and intercept impurities in the fluid. After long-term use, the anti-blocking device will be blocked due to the accumulation of impurities, and the anti-blocking device needs to be cleaned regularly. At present, it is inconvenient to disassemble and clean the anti-blocking device, which is time-consuming and labor-intensive. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a plate heat exchanger anti-blocking device, which can solve the current technical problem that it is inconvenient, time-consuming and labor-intensive to disassemble and clean the plate heat exchanger anti-blocking device.

[0004] An embodiment of the present application provides a plate heat exchanger anti-blocking device, including an anti-blocking pipe and a drain pipe, wherein a filter assembly, a cleaning assembly and a drive assembly are arranged in the anti-blocking pipe, wherein the cleaning assembly is arranged at the water inlet end of the filter assembly, and the drain pipe is connected to the bottom of the anti-blocking pipe, and the drain pipe is located at the water inlet end of the filter assembly, wherein a drain assembly is arranged in the drain pipe, and the cleaning assembly and the drain assembly are both connected to the drive assembly.

[0005] Wherein, the filter assembly includes a filter screen, and the filter screen is fixedly arranged in the anti-blocking tube.

[0006] Wherein, the cleaning assembly includes a first rotating shaft, a first mounting rod and a cleaning brush, the first rotating shaft is rotatably arranged in the anti-blocking tube through a bearing, the first mounting rod is fixedly arranged on the first rotating shaft, the cleaning brush is fixedly arranged on the first mounting rod, and the cleaning brush is in contact with the water inlet end of the filter.

[0007] Among them, the sewage discharge assembly includes a second mounting rod, a slider, a spiral blade, a mounting plate and a first connecting rod. The mounting plate is fixedly arranged in the sewage discharge pipe through the first connecting rod. The mounting plate is provided with a sliding groove. The slider is fixedly arranged at one end of the second mounting rod. The slider is slidingly connected with the sliding groove in a limited position. The spiral blade is fixedly arranged on the second mounting rod.

[0008] In which, the driving assembly includes an impeller, a second rotating shaft, a first bevel gear, a second bevel gear, a third rotating shaft, a first sprocket, a second sprocket, a third sprocket and a chain, the second rotating shaft is rotatably arranged in the anti-blocking pipe through a bearing, the impeller is fixedly arranged on the second rotating shaft, the third rotating shaft is rotatably arranged in the sewage pipe, the first bevel gear is fixedly sleeved on the third rotating shaft, the second bevel gear is fixedly arranged at the other end of the second mounting rod, the first bevel gear is meshed with the second bevel gear, the first rotating shaft extends to the outside of the anti-blocking pipe and is fixedly connected to the first sprocket, the second rotating shaft extends to the outside of the anti-blocking pipe and is fixedly connected to the second sprocket, the third rotating shaft extends to the outside of the sewage pipe and is fixedly connected to the third sprocket, and the first sprocket, the second sprocket and the third sprocket are all meshed with the chain.

[0009] Wherein, the filter screen is in a hemispherical shape.

[0010] Wherein, the sewage discharge assembly further includes a collar and a second connecting rod, the collar is fixedly arranged in the sewage discharge pipe through the second connecting rod, and the collar is rotatably sleeved on the second mounting rod.

[0011] Wherein, a sewage cover is arranged at the bottom of the sewage pipe.

[0012] Wherein, a valve is arranged on the sewage discharge pipe.

[0013] Wherein, a handle is fixedly arranged on the sewage discharge cover.

[0014] Beneficial effects of the utility model:

[0015] The utility model provides a plate heat exchanger anti-blocking device. When in use, the anti-blocking pipe is connected to the water inlet pipe of the plate heat exchanger. The fluid flowing through the anti-blocking pipe enters the plate heat exchanger after being filtered by the filter component. The flow of the fluid drives the driving component to work, and the driving component drives the cleaning component to clean the filter component. The driving component simultaneously drives the sewage discharge component to guide the impurities in the anti-blocking pipe into the sewage discharge pipe, and then discharges the impurities. The device uses the flow of the fluid in the anti-blocking pipe as the driving power to drive the cleaning component and the sewage discharge component to work, without the need for additional driving equipment, thereby saving costs. The device uses the cleaning component and the sewage discharge component to clean the filter component, and guides the impurities in the anti-blocking pipe into the sewage discharge pipe, and then discharges the impurities, thereby preventing the accumulation of impurities and causing blockage, without the need for disassembly and cleaning, thus saving time and effort and improving ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of some embodiments of the present application;

[0018] Figure 2 It is a schematic diagram of the main cross-sectional structure of the anti-blocking pipe and the sewage pipe in some embodiments of the present application;

[0019] Figure 3 This is a schematic diagram of the main structure of the anti-blocking pipe and the sewage pipe in some embodiments of the present application;

[0020] Figure 4 It is a schematic diagram of the main cross-sectional structure of a sewage pipe in some embodiments of the present application;

[0021] Figure 5 It is a schematic diagram of the top view of the cleaning assembly in some embodiments of the present application;

[0022] Figure 6 It is a schematic diagram of the side structure of the first bevel gear and the second bevel gear.

[0023] The reference numerals are:

[0024] 1. Anti-blocking pipe;

[0025] 2. Drain pipe; 21. Drain cover; 22. Valve; 23. Handle;

[0026] 3. Filter assembly; 31. Filter screen;

[0027] 4. Cleaning assembly; 41. First rotating shaft; 42. First mounting rod; 43. Cleaning brush;

[0028] 5. driving assembly; 51. impeller; 52. second rotating shaft; 53. first bevel gear; 54. second bevel gear; 55. third rotating shaft; 56. first sprocket; 57. second sprocket; 58. third sprocket; 59. chain;

[0029] 6. sewage discharge assembly; 61. second mounting rod; 62. slider; 63. spiral blade; 64. mounting plate; 65. first connecting rod; 66. slide groove; 67. collar; 68. second connecting rod;

[0030] 7. Plate heat exchanger. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] like Figures 1 to 3As shown, an embodiment of the present application provides a plate heat exchanger anti-blocking device, including an anti-blocking pipe 1 and a drain pipe 2, a filter assembly 3, a cleaning assembly 4 and a drive assembly 5 are arranged in the anti-blocking pipe 1, the cleaning assembly 4 is arranged at the water inlet end of the filter assembly 3, the drain pipe 2 is connected to the bottom of the anti-blocking pipe 1, and the drain pipe 2 is located at the water inlet end of the filter assembly 3, a drain assembly 6 is arranged in the drain pipe 2, and the cleaning assembly 4 and the drain assembly 6 are both connected to the drive assembly 5.

[0038] When in use, the anti-blocking pipe 1 is connected to the water inlet pipe of the plate heat exchanger 7, and the fluid flowing through the anti-blocking pipe 1 enters the plate heat exchanger 7 after being filtered by the filter component 3. The flow of the fluid drives the driving component 5 to work, and the driving component 5 drives the cleaning component 4 to clean the filter component 3. The driving component 5 also drives the sewage discharge component 6 to introduce the impurities in the anti-blocking pipe 1 into the sewage discharge pipe 2, and then discharge the impurities; the device is provided with a driving component 5, and the flow of the fluid in the anti-blocking pipe 1 is used as the driving force to drive the cleaning component 4 and the sewage discharge component 6 to work, without the need for additional driving equipment, thereby saving costs; the device is provided with a cleaning component 4 and a sewage discharge component 6 to clean the filter component 3, and introduce the impurities in the anti-blocking pipe 1 into the sewage discharge pipe 2, and then discharge the impurities, so as to prevent the accumulation of impurities and cause blockage, without the need for disassembly and cleaning, thus saving time and effort and improving ease of use.

[0039] like Figure 2 As shown, in this embodiment, the filter assembly 3 includes a filter screen 31, and the filter screen 31 is fixedly arranged in the anti-blocking tube 1; when in use, the fluid flowing through the anti-blocking tube 1 enters the plate heat exchanger 7 after being filtered by the filter screen 31, and the impurities in the fluid are retained by the filter screen 31.

[0040] like Figure 2 and 5 As shown, in this embodiment, the cleaning assembly 4 includes a first rotating shaft 41, a first mounting rod 42 and a cleaning brush 43. The first rotating shaft 41 is rotatably arranged in the anti-blocking pipe 1 through a bearing, the first mounting rod 42 is fixedly arranged on the first rotating shaft 41, and the cleaning brush 43 is fixedly arranged on the first mounting rod 42, and the cleaning brush 43 is in contact with the water inlet end of the filter screen 31.

[0041] When in use, the driving assembly 5 drives the first rotating shaft 41 to rotate, the first rotating shaft 41 drives the first mounting rod 42 to rotate, the first mounting rod 42 drives the cleaning brush 43 to rotate, and the cleaning brush 43 brushes and cleans the water inlet end of the filter screen 31 to prevent impurities from adhering to the filter screen 31 and causing blockage.

[0042] like Figure 2 and 4As shown, in this embodiment, the sewage discharge assembly 6 includes a second mounting rod 61, a slider 62, a spiral blade 63, a mounting plate 64 and a first connecting rod 65. The mounting plate 64 is fixedly arranged in the sewage discharge pipe 2 through the first connecting rod 65. The mounting plate 64 is provided with a slide groove 66. The slider 62 is fixedly arranged at one end of the second mounting rod 61. The slider 62 is slidingly connected to the slide groove 66, and the spiral blade 63 is fixedly arranged on the second mounting rod 61.

[0043] When in use, the driving assembly 5 drives the second mounting rod 61 to rotate, and the second mounting rod 61 drives the spiral blade 63 to rotate. The rotating spiral blade 63 guides the impurities in the anti-blocking pipe 1 into the sewage pipe 2, and then discharges the impurities to prevent the impurities from accumulating in the anti-blocking pipe 1 and causing blockage; the coordinated use of the slider 62 and the slide groove 66 allows the second mounting rod 61 to rotate stably and smoothly on the mounting plate 64, thereby improving the stability of use.

[0044] like Figures 2 to 5 As shown, in this embodiment, the driving assembly 5 includes an impeller 51, a second rotating shaft 52, a first bevel gear 53, a second bevel gear 54, a third rotating shaft 55, a first sprocket 56, a second sprocket 57, a third sprocket 58 and a chain 59. The second rotating shaft 52 is rotatably arranged in the anti-blocking pipe 1 through a bearing, the impeller 51 is fixedly arranged on the second rotating shaft 52, the third rotating shaft 55 is rotatably arranged in the sewage pipe 2, the first bevel gear 53 is fixedly sleeved on the third rotating shaft 55, the second bevel gear 54 is fixedly arranged at the other end of the second mounting rod 61, the first bevel gear 53 is meshedly connected with the second bevel gear 54, the first rotating shaft 41 extends to the outside of the anti-blocking pipe 1 and is fixedly connected with the first sprocket 56, the second rotating shaft 52 extends to the outside of the anti-blocking pipe 1 and is fixedly connected with the second sprocket 57, the third rotating shaft 55 extends to the outside of the sewage pipe 2 and is fixedly connected with the third sprocket 58, and the first sprocket 56, the second sprocket 57 and the third sprocket 58 are all meshedly connected with the chain 59.

[0045] When in use, the flow of fluid drives the impeller 51 to rotate, the impeller 51 drives the second rotating shaft 52 to rotate, the second rotating shaft 52 drives the second sprocket 57 to rotate, the second sprocket 57 drives the chain 59 to rotate, the chain 59 drives the first sprocket 56 to rotate, the first sprocket 56 drives the first rotating shaft 41 to rotate, the chain 59 also drives the third sprocket 58 to rotate, the third sprocket 58 drives the third rotating shaft 55 to rotate, the third rotating shaft 55 drives the first bevel gear 53 to rotate, the first bevel gear 53 drives the second bevel gear 54 to rotate, and the second bevel gear 54 drives the second mounting rod 61 to rotate; the device drives the cleaning component 4 and the sewage discharge component 6 to work by setting a driving component 5, using the flow of fluid in the anti-blocking pipe 1 as the driving power, without the need for additional driving equipment, thereby saving costs.

[0046] like Figure 2As shown, in this embodiment, the shape of the filter screen 31 is hemispherical; the hemispherical filter screen 31 has a larger filtering area and can intercept more impurities.

[0047] like Figure 4 As shown, in this embodiment, the sewage discharge assembly 6 also includes a ring 67 and a second connecting rod 68. The ring 67 is fixedly arranged in the sewage discharge pipe 2 through the second connecting rod 68, and the ring 67 is rotatably mounted on the second mounting rod 61; the ring 67 can provide stable support for the second mounting rod 61, so that the second mounting rod 61 can rotate stably, thereby improving the stability of use.

[0048] like Figure 4 As shown, in this embodiment, a sewage cover 21 is provided at the bottom of the sewage pipe 2; when in use, the sewage cover 21 can be opened to discharge the impurities collected in the sewage pipe 2.

[0049] like Figure 4 As shown, in this embodiment, a valve 22 is provided on the sewage pipe 2; during normal use, the valve 22 is opened, and the impurities in the sewage pipe 2 are collected and accumulated at the bottom of the sewage pipe 2. When the impurities need to be discharged, the valve 22 is closed, and the sewage cover 21 is opened to discharge the impurities collected in the sewage pipe 2. At this time, the impurities introduced into the sewage pipe 2 by the rotating spiral blades 63 are collected and accumulated in the middle part of the sewage pipe 2. The staff can open the sewage pipe 2 to discharge the impurities collected in the sewage pipe 2 without stopping the machine, thereby ensuring continuous filtration of the fluid.

[0050] like Figure 4 As shown, in this embodiment, a handle 23 is fixedly provided on the drain cover 21; the handle 23 is convenient for the staff to open and close the drain cover 21, thereby improving the convenience of use.

[0051] Working principle: When the plate heat exchanger anti-blocking device provided by the present application is in use, the anti-blocking pipe 1 is connected to the water inlet pipe of the plate heat exchanger 7, and the fluid flowing through the anti-blocking pipe 1 enters the plate heat exchanger 7 after being filtered by the filter screen 31. The impurities in the fluid are intercepted by the filter screen 31, and the fluid flow drives the impeller 51 to rotate, the impeller 51 drives the second rotating shaft 52 to rotate, the second rotating shaft 52 drives the second sprocket 57 to rotate, the second sprocket 57 drives the chain 59 to rotate, the chain 59 drives the first sprocket 56 to rotate, the first sprocket 56 drives the first rotating shaft 41 to rotate, the first rotating shaft 41 drives the first mounting rod 42 to rotate, and the first The mounting rod 42 drives the cleaning brush 43 to rotate, and the cleaning brush 43 brushes and cleans the water inlet end of the filter screen 31; the chain 59 simultaneously drives the third sprocket 58 to rotate, the third sprocket 58 drives the third rotating shaft 55 to rotate, the third rotating shaft 55 drives the first bevel gear 53 to rotate, the first bevel gear 53 drives the second bevel gear 54 to rotate, the second bevel gear 54 drives the second mounting rod 61 to rotate, the second mounting rod 61 drives the spiral blade 63 to rotate, the rotating spiral blade 63 guides the impurities in the anti-blocking pipe 1 into the sewage pipe 2, and then closes the valve 22, opens the sewage cover 21 to discharge the impurities collected in the sewage pipe 2.

[0052] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A plate heat exchanger anti-blocking device, characterized in that: The invention comprises an anti-blocking pipe (1) and a sewage pipe (2), wherein a filter assembly (3), a cleaning assembly (4) and a driving assembly (5) are arranged in the anti-blocking pipe (1), wherein the cleaning assembly (4) is arranged at the water inlet end of the filter assembly (3), the sewage pipe (2) is connected to and arranged at the bottom of the anti-blocking pipe (1), and the sewage pipe (2) is located at the water inlet end of the filter assembly (3), and a sewage discharge assembly (6) is arranged in the sewage pipe (2), wherein the cleaning assembly (4) and the sewage discharge assembly (6) are both connected to the driving assembly (5).

2. The plate heat exchanger anti-blocking device according to claim 1, characterized in that: The filter assembly (3) comprises a filter screen (31), and the filter screen (31) is fixedly arranged in the anti-blocking pipe (1).

3. The plate heat exchanger anti-blocking device according to claim 2, characterized in that: The cleaning assembly (4) comprises a first rotating shaft (41), a first mounting rod (42) and a cleaning brush (43); the first rotating shaft (41) is rotatably arranged in the anti-blocking pipe (1) via a bearing; the first mounting rod (42) is fixedly arranged on the first rotating shaft (41); the cleaning brush (43) is fixedly arranged on the first mounting rod (42); and the cleaning brush (43) is in contact with the water inlet end of the filter screen (31).

4. The plate heat exchanger anti-blocking device according to claim 3, characterized in that: The sewage discharge component (6) comprises a second mounting rod (61), a slider (62), a spiral blade (63), a mounting plate (64) and a first connecting rod (65); the mounting plate (64) is fixedly arranged in the sewage discharge pipe (2) through the first connecting rod (65); the mounting plate (64) is provided with a slide groove (66); the slider (62) is fixedly arranged at one end of the second mounting rod (61); the slider (62) is limitedly slidably connected to the slide groove (66); and the spiral blade (63) is fixedly arranged on the second mounting rod (61).

5. The plate heat exchanger anti-blocking device according to claim 4, characterized in that: The driving assembly (5) comprises an impeller (51), a second rotating shaft (52), a first bevel gear (53), a second bevel gear (54), a third rotating shaft (55), a first sprocket (56), a second sprocket (57), a third sprocket (58) and a chain (59); the second rotating shaft (52) is rotatably arranged in the anti-blocking pipe (1) via a bearing; the impeller (51) is fixedly arranged on the second rotating shaft (52); the third rotating shaft (55) is rotatably arranged in the sewage discharge pipe (2); the first bevel gear (53) is fixedly sleeved on the third rotating shaft (55); the second bevel gear (54) is fixedly sleeved on the third rotating shaft (55); The first bevel gear (53) is arranged at the other end of the second mounting rod (61), and is meshedly connected with the second bevel gear (54). The first rotating shaft (41) extends to the outside of the anti-blocking pipe (1) and is fixedly connected to the first sprocket (56). The second rotating shaft (52) extends to the outside of the anti-blocking pipe (1) and is fixedly connected to the second sprocket (57). The third rotating shaft (55) extends to the outside of the sewage pipe (2) and is fixedly connected to the third sprocket (58). The first sprocket (56), the second sprocket (57), and the third sprocket (58) are all meshedly connected with the chain (59).

6. The plate heat exchanger anti-blocking device according to claim 2, characterized in that: The filter screen (31) is hemispherical in shape.

7. The plate heat exchanger anti-blocking device according to claim 4, characterized in that: The sewage discharge assembly (6) further comprises a collar (67) and a second connecting rod (68); the collar (67) is fixedly arranged in the sewage discharge pipe (2) via the second connecting rod (68), and the collar (67) is rotatably sleeved on the second mounting rod (61).

8. The plate heat exchanger anti-blocking device according to claim 1, characterized in that: A sewage cover (21) is provided at the bottom of the sewage pipe (2).

9. The plate heat exchanger anti-blocking device according to claim 1, characterized in that: The sewage discharge pipe (2) is provided with a valve (22).

10. The plate heat exchanger anti-blocking device according to claim 8, characterized in that: A handle (23) is fixedly provided on the sewage discharge cover (21).

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