Multi-stage heat exchange type efficient evaporative condenser

Abstract

The invention discloses a multistage heat exchange type efficient evaporative condenser, which belongs to the technical field of condensers, and comprises a water collecting base and a box body, a composite heat exchange module is arranged in the box body, and a spraying module for cooling the composite heat exchange module is arranged above the box body; an axial flow air cooling module for conducting air cooling heat exchange on the composite heat exchange module is arranged in the box body, and a high-frequency cleaning module for cleaning the composite heat exchange module is arranged in the water collecting base. The whole composite heat exchange module is driven by the adjusting motor to rotate slowly like a rotating door, so that the composite pipe bodies in each group are periodically and alternately switched to a working area and a bottommost cleaning area, when the pipe bodies rotate to a bottom cleaning position, fin ribs on the surfaces of the pipe bodies can extrude a fixed arc-shaped cleaning base plate, and the cleaning effect is improved. Hard scale condensed outside the pipe wall can be effectively extruded, broken and crushed, and the ultrasonic generator arranged in the cleaning area is combined to deeply and finely clean the composite pipe body subjected to mechanical scale breaking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of condensers, in particular to a multi-stage heat exchange type high-efficiency evaporative condenser. BACKGROUND

[0002] The evaporative condenser is a heat exchange equipment that uses the evaporation of water to cool and condense the refrigerant or other process fluid in the pipe. It uses the evaporation of water to absorb a large amount of latent heat, thereby efficiently taking away the heat of the fluid in the pipe. Compared with simple air cooling or water cooling, it combines the advantages of both, significantly improves the heat exchange efficiency and greatly reduces the water consumption.

[0003] In daily use, the concentration of minerals (such as calcium and magnesium) in the cooling water will become higher and higher in the process of continuous circulation and evaporation, eventually exceeding its solubility, precipitating and depositing on the surface of the heat exchange pipe and the inside of the pipe, forming hard scale with extremely low thermal conductivity, which seriously hinders heat transfer, leading to increased condensing pressure, increased compressor power consumption and reduced refrigeration capacity, which seriously restricts the use of the condenser. Based on this, a multi-stage heat exchange type high-efficiency evaporative condenser is proposed. SUMMARY

[0004] The purpose of the present application is to solve the problems existing in the prior art and to provide a multi-stage heat exchange type high-efficiency evaporative condenser.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: A multi-stage heat exchange type high-efficiency evaporative condenser, comprising a water collecting base and a box body, a composite heat exchange module is arranged in the box body, a spray module for cooling the composite heat exchange module is arranged above the box body, an axial flow air cooling module for air cooling heat exchange of the composite heat exchange module is arranged in the box body, and a high-frequency cleaning module for periodic cleaning of the composite heat exchange module is arranged in the water collecting base. The composite heat exchange module comprises two inlet and outlet water tanks arranged at one end of the box body, a rotating end plate connected by a driving control assembly is arranged in the inlet and outlet water tank, a plurality of composite end plates are uniformly arranged on the rotating end plate, a plurality of supporting inner tube bodies are rotatably arranged on the composite end plate, a composite tube body is arranged at the end of the supporting inner tube body, and the other end of the composite tube body is connected by a dynamic communication device.

[0006] As a preferred scheme, the composite tube body comprises a corrosion-resistant inner tube arranged inside, a heat exchange tube body is arranged outside the corrosion-resistant inner tube, a plurality of fin strips are arranged in a staggered manner on the heat exchange tube body, and an extruded lining is arranged at the inner end of the fin strip.

[0007] As a preferred scheme, the active control assembly comprises an inner water isolation disc rotatably connected with the inner wall of the water inlet and outlet tank body through a fixed inner ring, and an inner sealing disc is rotatably connected with the inner water isolation disc at a position corresponding to the composite end disc; An adjusting motor is arranged in the water inlet and outlet tank body, and the output end of the adjusting motor is fixedly connected with the inner water isolation disc and the rotating end plate.

[0008] As a preferred scheme, a self-rotation gear is fixedly connected with the outer side wall of the supporting inner pipe body, an inner fixed gear ring is arranged on the fixed inner ring and is in meshing connection with the self-rotation gear, a self-rotation gear ring is fixedly connected with the outer side wall of the composite end disc, and an outer fixed gear ring is arranged on the fixed inner ring and is in meshing connection with the self-rotation gear ring.

[0009] As a preferred scheme, the dynamic communication device comprises two communication water changing discs arranged on the tank body, a connecting end plate is rotatably arranged on the communication water changing disc, a plurality of connecting end discs are uniformly rotatably arranged on the connecting end plate, the end portion of the composite pipe body is fixedly arranged on the connecting end disc, a water changing opening is arranged at the connecting position, a communication opening corresponding to the water changing opening is arranged on the communication water changing disc, and the two communication water changing discs are in communication with each other through a laminated pipeline.

[0010] As a preferred scheme, the high-frequency cleaning module comprises an arc-shaped cleaning base disc arranged in the water collecting base.

[0011] As a preferred scheme, the axial flow air cooling module comprises an air outlet arranged on the top of the tank body, the air outlet is directly above the supporting inner pipe body, an axial flow fan is arranged in the air outlet, and an air inlet is arranged on the side of the tank body close to the dynamic communication device.

[0012] As a preferred scheme, the spraying module is provided with two groups and is arranged directly above the composite pipe bodies on the two sides.

[0013] Compared with the prior art, the application has the following beneficial effects: 1、The whole composite heat exchange module can slowly rotate like a "revolving door" through the driving of the adjusting motor, so that the composite pipe bodies of each group are periodically rotated to the working area and the cleaning area at the bottom, the fins on the surface of the pipe body are extruded with the fixed arc-shaped cleaning base disc when the pipe body rotates to the bottom cleaning position, the hard scale condensed on the outer wall of the pipe body can be effectively extruded, broken and crushed, the composite pipe body after mechanical descaling is deeply and finely cleaned by the ultrasonic generator arranged in the cleaning area, residual scale is completely removed, the cleaning effect is ensured, and physical automatic descaling without chemical agents is realized.

[0014] 2、The finned rib strip handles the scale on the pipe wall at the same time, when the finned rib strip moves inward, the internal extrusion lining piece is linked to move, the flexible corrosion-resistant inner tube is extruded and deformed, so that the soft blockage possibly existing in the pipe is disturbed and cleaned, and the internal flow channel is kept unobstructed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic view of a multi-stage heat exchange type high-efficiency evaporative condenser is provided for the present application; Figure 2 An assembly structural schematic view of a multi-stage heat exchange type high-efficiency evaporative condenser is provided for the present application; Figure 3 A combination structural schematic view of a composite heat exchange module in a multi-stage heat exchange type high-efficiency evaporative condenser is provided for the present application Figure 1 ; Figure 4 A structural schematic view of a composite heat exchange module in a multi-stage heat exchange type high-efficiency evaporative condenser is provided for the present application Figure 3 ; Figure 5 A combination structural schematic view of a composite heat exchange module in a multi-stage heat exchange type high-efficiency evaporative condenser is provided for the present application Figure 2 ; Figure 6 A sectional structural schematic view of a water inlet and outlet tank body in a multi-stage heat exchange type high-efficiency evaporative condenser is provided for the present application; Figure 7 A structural schematic view of a composite pipe body in a multi-stage heat exchange type high-efficiency evaporative condenser is provided for the present application; Figure 8 A positional relationship distribution schematic view of a composite pipe body, a composite end disc and a rotating end plate in a multi-stage heat exchange type high-efficiency evaporative condenser is provided for the present application; Figure 9 A frame diagram of a multi-stage heat exchange type high-efficiency evaporative condenser is provided for the present application.

[0016] In the figure: 1, water collecting base; 2, tank body; 3, spraying module; 4, water inlet and outlet tank body; 5, rotating end plate; 6, composite end disc; 7, supporting inner pipe body; 8, composite pipe body; 801, corrosion-resistant inner tube; 802, heat exchange pipe body; 803, finned rib strip; 804, extrusion lining piece; 9, fixed inner ring; 10, inner water isolation disc; 11, inner sealing disc; 12, self-rotating gear; 13, inner fixed tooth ring; 14, self-rotating tooth ring; 15, outer fixed tooth ring; 16, communication water changing disc; 17, connecting end plate; 18, connecting end disc; 19, laminated pipe; 20, arc-shaped cleaning bottom disc; 21, air outlet; 22, air inlet. DETAILED DESCRIPTION

[0017] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0018] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] Embodiment, refer to Figures 1 to 9 A multi-stage heat exchange type high-efficiency evaporative condenser, comprising a water collecting base 1 and a box body 2, a composite heat exchange module is arranged in the box body 2, the composite heat exchange module comprises two water inlet and outlet box bodies 4 arranged at one end of the box body 2, and a rotating end plate 5 is connected in the water inlet and outlet box body 4 through a positive control assembly, wherein an external pipeline is arranged above the water inlet and outlet box body 4, and cold water and hot water pipelines of a system are connected respectively; Further, the positive control assembly comprises an inner water isolation disc 10 rotatably connected with the inner wall of the water inlet and outlet box body 4 through a fixed inner ring 9, wherein the fixed inner ring 9 is fixedly connected with the inner wall of the water inlet and outlet box body 4, and the inner water isolation disc 10 is rotatably connected with the fixed inner ring 9, so that the inner water isolation disc 10 can rotate with the water inlet and outlet box body 4, an inner sealing disc 11 is rotatably connected with the inner water isolation disc 10 at a position corresponding to the composite end disc 6, the end portion of the support inner pipe body 7 extends inwardly through the inner sealing disc 11, and the inner sealing disc 11 and the composite end disc 6 can synchronously rotate, and such arrangement can seal the structure of the positive control assembly by the inner water isolation disc 10 and the inner sealing disc 11; An adjusting motor is arranged in the water inlet and outlet tank body 4, and an output end of the adjusting motor is fixedly connected with the inner water isolation disc 10 and the rotating end plate 5, and the adjusting motor is used for driving the inner water isolation disc 10 and the rotating end plate 5 to synchronously rotate.

[0021] Further, the support inner tube body 7 is fixedly connected with a self-rotation gear 12 on the outer side wall, the fixed inner ring 9 is provided with an inner fixed gear ring 13 which is in meshing connection with the self-rotation gear 12, and the composite end disc 6 is fixedly connected with a self-rotation gear ring 14 on the outer side wall, and the fixed inner ring 9 is provided with an outer fixed gear ring 15 which is in meshing connection with the self-rotation gear ring 14.

[0022] The rotating end plate 5 is uniformly provided with a plurality of composite end discs 6, the composite end disc 6 is rotatably provided with a plurality of support inner tube bodies 7, the support inner tube body 7 is provided with a composite tube body 8 at the end, and further, the composite tube body 8 comprises a corrosion-resistant inner tube 801 in the inside, the heat exchange tube body 802 is arranged outside the corrosion-resistant inner tube 801, a plurality of fin strips 803 are arranged in the heat exchange tube body 802, and the fin strip 803 is provided with an extrusion lining 804 at the inner end, which adopts the composite tube body 8 composed of the heat exchange tube body 802 and the fin strip 803, so that the effective heat exchange area is greatly increased.

[0023] It should be noted that the arc-shaped cleaning bottom disc 20 is close to the outer wall of the composite tube body 8, when the composite tube body 8 is driven to rotate, the fin strip 803 arranged on the surface layer of the composite tube body 8 will contact the inner wall of the arc-shaped cleaning bottom disc 20, so as to extrude the fin strip 803, and the fin strip 803 moves inward, when extruded, the scale originally condensed on the surface layer of the composite tube body 8 is broken, and the inward movement of the fin strip 803 drives the inner connected extrusion lining 804 to be internally pressed, so as to extrude and deform the flexibly arranged corrosion-resistant inner tube 801, and the condensation blockage in the corrosion-resistant inner tube 801 can also be cleaned. It should be noted that the plurality of composite tube bodies 8 are in a ring shape, the ring-shaped distribution of the composite tube body 8 provides a channel for wind delivery, increases the contact area with air, combines the top spray evaporation and axial flow air cooling, comprehensively combines the advantages of high efficiency of water cooling and water saving of air cooling, and realizes extremely high heat exchange efficiency.

[0024] The other end of the composite tube body 8 is connected through a dynamic communication device, the dynamic communication device comprises two communication water changing discs 16 arranged on the tank body 2, the communication water changing disc 16 is rotatably provided with a connecting end plate 17, the connecting end plate 17 is uniformly rotatably provided with a plurality of connecting end discs 18, the end of the composite tube body 8 is fixedly arranged on the connecting end disc 18, and a water changing port is arranged at the connecting position, the communication water changing disc 16 is provided with a communication port corresponding to the water changing port, and the two communication water changing discs 16 are connected through a laminated pipeline 19.

[0025] Need to explain, the bottom of the communication water pan 16 is in the closed state, so the bottom of the composite pipe body 8 is in the working state, so when the upper composite pipe body 8 is working, the bottom composite pipe body 8 is in the continuous cleaning state of the high-frequency cleaning module.

[0026] It is worth noting that the middle position of the communication water pan 16 and the connecting end plate 17 is hollow, which improves the ventilation area of the air inlet channel.

[0027] The box body 2 is provided with a spray module 3 for cooling the composite heat exchange module, and further, the spray module 3 is provided with two groups, which are respectively arranged above the composite pipe body 8 on both sides.

[0028] The box body 2 is provided with an axial flow air cooling module for air cooling of the composite heat exchange module, and further, the axial flow air cooling module includes an air outlet 21 opened at the top of the box body 2, the air outlet 21 is above the support inner pipe body 7, the air outlet 21 is provided with an axial flow fan, and the box body 2 is provided with an air inlet 22 near the dynamic communication device.

[0029] The water collecting base 1 is provided with a high-frequency cleaning module for periodic cleaning of the composite heat exchange module, and the high-frequency cleaning module includes an arc-shaped cleaning base plate 20 arranged in the water collecting base 1, the arc-shaped cleaning base plate 20 is soaked in the circulating water in the water collecting base 1, and the arc-shaped cleaning base plate 20 is provided with an ultrasonic generator, which is a prior art, which can realize ultrasonic cleaning of a group of composite pipe bodies 8 at the arc-shaped cleaning base plate 20, so as to ensure effective cleaning of the scale on the composite pipe body 8.

[0030] When the high-efficiency evaporative condenser works, the medium is transported through the inlet and outlet water tank 4 on one side, and the medium is transported under the action of the pressure and enters the composite pipe body 8 through the support inner pipe body 7. Under the action of the spray module 3, the circulating water is continuously sprayed on the surface of the composite pipe body 8, at this time, the internal medium will be effectively cooled under the action of the spray, and under the action of the axial flow fan, the steam can be quickly volatilized, and the heat exchange effect is improved; When the evaporative condenser runs to the predetermined time, scale condensation will occur on the composite pipe body 8 located in the upper layer, at this time, the control adjusting motor drives the rotating end plate 5, so that the multiple composite pipe bodies 8 connected through the composite end plate 6 are rotated, so as to change the position of the composite pipe body 8 located in the uppermost position, so that the composite pipe body 8 located in the uppermost position is gradually adjusted in position. When the rotating end plate 5 is driven to rotate, the composite end plate 6 is rotated under the action of the self-rotation tooth ring 14 under the action of the outer fixed tooth ring 15, so as to gradually change the position of the composite pipe body 8 and the position directly contacting the circulating water. In the process, under the action of the inner fixed tooth ring 13 and the self-rotating gear 12, the support inner tube body 7 drives the composite tube body 8 to rotate, at this time, the composite tube body 8 at the lowermost position makes the fin rib 803 arranged on the surface layer of the composite tube body 8 contact with the inner wall of the arc-shaped cleaning bottom plate 20, so as to extrude the fin rib 803, and the fin rib 803 moves inward, when extruded, the scale originally condensed on the surface layer of the composite tube body 8 is broken, and the inward movement of the fin rib 803 drives the connected extrusion inner liner 804 to be internally pressed, extrudes the flexibly arranged corrosion-resistant inner tube 801, deforms the corrosion-resistant inner tube 801, and can also clean the blockage condensed in the corrosion-resistant inner tube 801; When the group of composite tube bodies 8 needing to be cleaned moves to the bottom (in the non-working state), it directly contacts with the arc-shaped cleaning bottom plate 20 below, at this time, the high-frequency cleaning module arranged at the arc-shaped cleaning bottom plate 20 can realize ultrasonic cleaning of the scale on the broken composite tube body 8, so as to ensure that the evaporative condenser is always in an efficient working state.

[0031] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A multi-stage heat-exchange type high-efficiency evaporative condenser comprising a water collecting base (1) and a box body (2), characterized in that, The box (2) is provided with a composite heat exchange module, a spray module (3) for cooling the composite heat exchange module is arranged above the box (2), an axial flow air cooling module for air cooling the composite heat exchange module is arranged in the box (2), and a high-frequency cleaning module for periodically cleaning the composite heat exchange module is arranged in the water collecting base (1); The composite heat exchange module comprises two inlet and outlet water boxes (4) arranged at one end of the box (2), the inlet and outlet water boxes (4) are connected with rotating end plates (5) through active control assemblies, the rotating end plates (5) are uniformly provided with a plurality of composite end discs (6), the composite end discs (6) are rotatably provided with a plurality of supporting inner tube bodies (7), the supporting inner tube bodies (7) are provided with composite tube bodies (8) at the ends, and the composite tube bodies (8) are connected with each other through dynamic communication devices at the other ends.

2. The multi-stage heat-recovery high-efficiency evaporative condenser according to claim 1, characterized in that, The composite tube body (8) comprises a corrosion-resistant inner tube (801) arranged in the interior, a heat exchange tube body (802) arranged outside the corrosion-resistant inner tube (801), a plurality of fin ribs (803) arranged in an interlaced manner on the heat exchange tube body (802), and an extruded inner lining (804) arranged at the inner end of the fin rib (803).

3. The multi-stage heat-recovery high-efficiency evaporative condenser according to claim 1, characterized in that, The active control assembly comprises an inner water isolation disc (10) rotatably connected with the inner wall of the inlet and outlet water box (4) through a fixed inner ring (9), the inner water isolation disc (10) is rotatably connected with an inner sealing disc (11) at the position corresponding to the composite end disc (6), and the supporting inner tube body (7) extends inwardly through the inner sealing disc (11) at the end. An adjusting motor is arranged in the inlet and outlet water box (4), and the output end of the adjusting motor is fixedly connected with the inner water isolation disc (10) and the rotating end plate (5).

4. The multi-stage heat-recovery high-efficiency evaporative condenser according to claim 3, characterized in that, A self-rotation gear (12) is fixedly connected to the outer side wall of the supporting inner tube body (7), an inner fixed tooth ring (13) is arranged on the fixed inner ring (9) and engaged with the self-rotation gear (12), a self-rotation tooth ring (14) is fixedly connected to the outer side wall of the composite end disc (6), and an outer fixed tooth ring (15) is arranged on the fixed inner ring (9) and engaged with the self-rotation tooth ring (14).

5. The multi-stage heat-recovery high-efficiency evaporative condenser according to claim 1, characterized in that, The dynamic communication device comprises two communication water replacement discs (16) arranged on the box (2), a connecting end plate (17) is rotatably arranged on the communication water replacement disc (16), a plurality of connecting end discs (18) are uniformly rotatably arranged on the connecting end plate (17), the composite tube body (8) is fixedly arranged on the connecting end disc (18) at the end, a water replacement opening is arranged at the connecting position, a communication opening corresponding to the water replacement opening is arranged on the communication water replacement disc (16), and the two communication water replacement discs (16) are communicated with each other through a laminated pipeline (19).

6. The multi-stage heat-recovery high-efficiency evaporative condenser according to claim 1, characterized in that, The high-frequency cleaning module comprises an arc-shaped cleaning base disc (20) arranged in the water collecting base (1), and an ultrasonic generator is arranged on the arc-shaped cleaning base disc (20).

7. The multi-stage heat-recovery high-efficiency evaporative condenser according to claim 1, characterized in that, The axial flow air cooling module comprises an air outlet (21) formed on the top of the box (2), the air outlet (21) is right above the supporting inner pipe body (7), an axial flow fan is arranged in the air outlet (21), and the box (2) is provided with an air inlet (22) on the side close to the dynamic communication device.

8. The multi-stage heat-recovery high-efficiency evaporative condenser according to claim 1, characterized in that, The spraying module (3) is provided with two groups, which are arranged above the composite pipe bodies (8) on the two sides respectively.

Images