Online uninterrupted continuous operation heat exchanger device with standby function

Abstract

The utility model discloses an on-line uninterrupted continuous operation heat exchanger device with a standby function, which belongs to the technical field of heat exchangers and comprises a water collecting tank and positioning boxes fixed on two sides of the water collecting tank, two fixing plates are fixed on the surface of the water collecting tank, supporting boxes and fixing boxes are fixed between the positioning boxes and the fixing plates, and the supporting boxes and the fixing boxes are fixed on the water collecting tank. Heat exchange plate sets are placed on the surfaces of the two supporting boxes, movable plates used for limiting the positions of the heat exchange plate sets are movably connected to the bottoms of the fixed boxes, four three-way ball valves are installed between the two fixed plates, and every two three-way ball valves are connected in parallel. According to the on-line uninterrupted continuous operation heat exchanger device with the standby function, the two heat exchangers are repeatedly switched for use, cleaned and disassembled through the three-way ball valves integrated in parallel, and standby and on-line uninterrupted continuous operation of the heat exchangers are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat exchanger technical field, and specifically relates to an on-line uninterrupted continuous operation heat exchanger device with standby function. BACKGROUND

[0002] Heat exchanger (also known as heat exchanger or heat exchange equipment) is used to make heat transfer from hot fluid to cold fluid to meet the specified process requirements, and is an industrial application of flow heat transfer and heat conduction.

[0003] With the application of heat exchanger in the fields of petroleum chemical industry, ship matching, power, pharmacy, food, heat supply unit matching and the like, the integrated demand of users for heat exchanger with standby function and uninterrupted continuous operation is increasingly large, especially the economic benefit loss caused by shutdown maintenance is particularly prominent, therefore, the heat exchanger integrated device with standby function and on-line uninterrupted continuous operation is particularly important, and is especially suitable for large-scale petroleum chemical industry, ship matching, power, pharmacy, food and the like needing continuous operation scene. SUMMARY

[0004] The utility model discloses a kind of on-line uninterrupted continuous operation heat exchanger devices with standby function, to solve the integrated demand of users for heat exchanger with standby function and uninterrupted continuous operation increasingly large as described in the above background art, especially the economic benefit loss caused by shutdown maintenance is particularly prominent.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of on-line uninterrupted continuous operation heat exchanger device with standby function, including water collecting tank and the positioning box fixed to the both sides of water collecting tank, the surface of water collecting tank is fixed with two fixed plates, support box and fixed box are fixed between the positioning box and fixed plate, the surface of two support boxes is placed with heat exchange plate group, the bottom of fixed box is movably connected with movable plate for limiting the position of heat exchange plate group, four three-way ball valves are installed between two fixed plates, four three-way ball valves are parallelly connected two by two between them;

[0006] The outer wall of the control rod of three-way ball valve is fixed with chain wheel one, the outer wall of two fixed plates is fixed with mounting plate, and the outer wall of one side of mounting plate is installed with step motor, the output end of step motor is fixed with chain wheel two, and the outer wall of chain wheel one and chain wheel two is sleeved with chain.

[0007] In further embodiments, a positive and negative motor is installed on the bottom wall of the inner chamber of the positioning box, and a drive shaft is fixed to the output end of the positive and negative motor, and two driving bevel gears are fixed to the outer wall of the drive shaft.

[0008] In further embodiments, a guide screw is rotatably connected in the support box and the fixing box, an end surface of the guide screw is fixed with a driven bevel gear meshing with the driving bevel gear, and an outer wall of the guide screw is threadedly connected with a guide block fixedly connected with the movable plate.

[0009] The technical effects and advantages of the present application are as follows:

[0010] The online uninterrupted continuous operation heat exchanger device with standby function is provided with two sets of heat exchange plate groups, and a same type of heat exchanger is placed opposite to the two sets of heat exchange plate groups, the two heat exchangers are connected through the parallel integrated three-way ball valves, the two three-way ball valves are connected through the chain wheel one, the chain wheel two and the chain, the chain wheel two drives the chain wheel one to rotate through the chain, the parallel three-way ball valves are switched, the outlet position of the cold and hot medium flowing through the three-way ball valves is changed to flow into another new heat exchanger to be put into use, the fouling heat exchanger can be closed, the fouling on the wall surface of the heat exchanger after being closed can be cleaned, and the heat exchanger can be reassembled and prepared for use next time, the two heat exchangers are switched and cleaned through the parallel integrated three-way ball valves, and standby and online uninterrupted continuous operation of the heat exchanger are realized.

[0011] The driving shaft and the driving bevel gear are driven to rotate by the forward and reverse motors, the driving bevel gear drives the guide screw and the guide block to move through the driven bevel gear, the movable plate is driven to move, the installation and fixation of the heat exchange plate group can be quickly completed, the heat exchange plate group can be conveniently disassembled from the support box, and the heat exchange plate group is convenient for later maintenance, the online uninterrupted continuous operation heat exchanger device with standby function is provided with two heat exchangers, the two heat exchangers are switched and cleaned through the parallel integrated three-way ball valves, and standby and online uninterrupted continuous operation of the heat exchanger are realized. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0013] Figure 1 The present application is a structural schematic diagram of the present application;

[0014] Figure 2 The present application is a structural schematic diagram of the positioning box and the fixing plate of the present application;

[0015] Figure 3 The present application is a sectional view of the positioning box and the fixing plate of the present application;

[0016] Figure 4 The utility model discloses a Figure 1 The enlarged view of A in the middle.

[0017] In the figure: 1, the water collecting tank is set up; 2, the positioning box is set up; 3, the fixed plate is set up; 4, the support box is set up; 5, the heat exchange plate group is set up; 6, the fixed box is set up; 7, the positive and negative motor is set up; 8, the drive shaft is set up; 9, the driving bevel gear is set up; 10, the movable plate is set up; 11, the guide screw is set up; 12, the driven bevel gear is set up; 13, the guide block is set up; 14, the three-way ball valve is set up; 15, the chain wheel one is set up; 16, the mounting plate is set up; 17, the stepping motor is set up; 18, the chain wheel two is set up; 19, the chain is set up. DETAILED DESCRIPTION

[0018] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, some technical features known in the art are not described in order not to obscure the utility model.

[0019] Unless the direction defined separately is indicated, the directions such as up, down, left, right, front, back, inner and outer involved in the present utility model are based on the directions such as up, down, left, right, front, back, inner and outer in the figure shown in the present utility model, which are explained here.

[0020] Please refer to Figures 1-4 The utility model provides a kind of online uninterrupted continuous operation heat exchanger device with standby function, including water collecting tank 1 and the positioning box 2 fixed in the both sides of water collecting tank 1, the surface welding of water collecting tank 1 has two fixed plates 3, positioning box 2 and fixed plate 3 between welding have support box 4 and fixed box 6, fixed box 6 is located above support box 4, the surface of two support boxes 4 is placed with heat exchange plate group 5, heat exchange plate group 5 is tightly arranged and compressed by a plurality of heat exchange plate pieces and sealing gasket in sequence, the bottom of fixed box 6 movably connects movable plate 10 for the position restriction of heat exchange plate group 5, the bottom of movable plate 10 is provided with recess matched with support box 4, to facilitate movable plate 10 moving outside support box 4;

[0021] The bottom wall of the inner cavity of the positioning box 2 is provided with a forward-reverse motor 7 through bolts, and the output end of the forward-reverse motor 7 is fixed with a driving shaft 8 through a shaft coupling. The outer wall of the driving shaft 8 is welded with two driving bevel gears 9. The supporting box 4 and the fixed box 6 are both rotatably connected with a guide screw 11 through a welded bearing. The two guide screws 11 both extend into the positioning box 2 and are rotatably connected with the positioning box 2 through a welded bearing. The end face of the guide screw 11 is welded with a driven bevel gear 12 which is engaged with the driving bevel gear 9. The outer wall of the guide screw 11 is threadedly connected with a guide block 13 which is fixedly connected with the movable plate 10. The opposite faces of the supporting box 4 and the fixed box 6 are both provided with a guide groove for the movement of the guide block 13. The driving shaft 8 and the driving bevel gear 9 are driven to rotate by the forward-reverse motor 7. The driving bevel gear 9 drives the guide screw 11 and the guide block 13 to move through the driven bevel gear 12, thereby driving the movable plate 10 to move. The movable plate 10 is in close contact with the heat exchange plate group 5, so that the installation and fixation of the heat exchange plate group 5 can be quickly completed. At the same time, the forward-reverse motor 7 is reversely rotated, the movable plate 10 is separated from the heat exchange plate group 5, and the heat exchange plate group 5 can be conveniently disassembled from the supporting box 4, which is convenient for later maintenance.

[0022] The two fixed plates 3 are provided with four three-way ball valves 14 through bolts. The four three-way ball valves 14 are connected in parallel two by two. The parallel three-way ball valves 14 are respectively composed of two sets of three-way valves which are independently used and connected in series through the same valve rod. When the three-way valves connected in series through the same valve rod rotate the valve rod, the simultaneous rotation and switching control of the two separate three-way ball valves 14 can be realized. The control rod of the three-way ball valve 14 is fixedly provided with a chain wheel one 15.

[0023] The outer walls of the two fixed plates 3 are fixedly provided with mounting plates 16 through bolts. One side of the outer wall of the mounting plate 16 is provided with a stepping motor 17 through bolts. The output end of the stepping motor 17 is fixedly provided with a chain wheel two 18. The outer walls of the chain wheel one 15 and the chain wheel two 18 are sleeved with a chain 19. Through the arrangement of the two heat exchange plate groups 5, two heat exchangers are formed. By placing a heat exchanger of the same type on the opposite side, the two heat exchangers are connected through the parallel integrated three-way ball valves 14. The parallel three-way ball valves 14 are connected through the chain wheel one 15, the chain wheel two 18 and the chain 19. The chain wheel two 18 drives the chain wheel one 15 to rotate through the chain 19, switches the parallel three-way ball valves 14, and changes the outlet position of the cold and hot medium flowing through the three-way ball valves 14 to flow into another new heat exchanger which needs to be put into use. In this way, the closing of the fouling heat exchanger can be realized. The closed heat exchanger can be disassembled and cleaned to remove the fouling on the wall of the heat exchange plate group 5. After reassembly, it is prepared for use again next time. In this way, the two heat exchangers are switched and used and cleaned and disassembled by the parallel integrated three-way ball valves 14, realizing the standby and uninterrupted continuous operation of the heat exchanger online.

[0024] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein, the control mode of the utility model is controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art, and the contents not described in detail in the description belong to the prior art known by the person skilled in the art.

[0025] In the description of the utility model, it is understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] Working principle:

[0027] The online uninterrupted continuous running heat exchanger device with standby function, when in use, two groups of heat exchange plate groups 5 jointly form two heat exchangers, by placing a heat exchanger of the same type opposite, one heat exchanger works, and the other heat exchanger is standby, the two heat exchangers are connected through the integrated three-way ball valve 14, two two-parallel three-way ball valves 14 are connected through the chain wheel one 15, the chain wheel two 18 and the chain 19, the chain wheel two 18 drives the chain wheel one 15 to rotate through the chain 19, switches the parallel three-way ball valve 14, and changes the outlet position of the cold and hot medium flowing through the three-way ball valve 14 to flow into another new heat exchanger to be put into use, so that the fouling heat exchanger can be closed, and the closed heat exchanger can be disassembled and cleaned to remove the fouling on the wall of the heat exchange plate group 5, and after reassembly, it is prepared for use next time again, so that the two heat exchangers are switched and used and cleaned and disassembled through the integrated three-way ball valve 14, and the standby and online uninterrupted continuous running of the heat exchanger are realized.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An on-line uninterrupted continuous operation heat exchanger device with standby function, comprising a collecting tank (1) and positioning boxes (2) fixed on both sides of the collecting tank (1), characterized in that: The surface of the water collecting tank (1) is fixed with two fixed plates (3), the positioning box (2) and the fixed plate (3) are fixed with a support box (4) and a fixed box (6), the surface of the two support boxes (4) is placed with a heat exchange plate group (5), the bottom of the fixed box (6) is movably connected with a movable plate (10) for limiting the position of the heat exchange plate group (5), four three-way ball valves (14) are installed between the two fixed plates (3), and the four three-way ball valves (14) are connected in parallel in pairs; The outer wall of the control rod of the three-way ball valve (14) is fixed with a chain wheel one (15), the outer wall of the two fixed plates (3) is fixed with a mounting plate (16), one side of the outer wall of the mounting plate (16) is provided with a stepping motor (17), the output end of the stepping motor (17) is fixed with a chain wheel two (18), and the outer walls of the chain wheel one (15) and the chain wheel two (18) are sleeved with a chain (19).

2. An on-line heat exchanger unit with backup function according to claim 1, characterized in that: The bottom wall of the inner cavity of the positioning box (2) is provided with a reversible motor (7), and the output end of the reversible motor (7) is fixed with a driving shaft (8), and the outer wall of the driving shaft (8) is fixed with two driving bevel gears (9).

3. An on-line heat exchanger unit with backup function according to claim 2, characterized in that: The support box (4) and the fixed box (6) are rotatably connected with a guide screw (11), the end surface of the guide screw (11) is fixed with a driven bevel gear (12) engaged with the driving bevel gear (9), and the outer wall of the guide screw (11) is threadedly connected with a guide block (13) fixedly connected with the movable plate (10).

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