Spraying device of spraying type evaporator

Abstract

The utility model discloses a spraying device of a spraying type evaporator, relates to the technical field of evaporators, and provides the following scheme aiming at the problems proposed in the background technology: the spraying device comprises a shell, the surface of the shell is fixedly connected with two circular partition plates, and the surface of the shell is respectively communicated with an air inlet pipe, a refrigerant pipe and an exhaust pipe; the opposite faces of the two circular partition plates are rotationally connected with a first rotating rod and a second rotating rod correspondingly, and the opposite ends of the first rotating rod and the second rotating rod are fixedly connected with a spraying assembly. The servo motor can drive the driving bevel gear to rotate through the round rod, the driving bevel gear drives the cylindrical flow divider to rotate through the driven bevel gear and the second rotating rod, so that the spraying range of the nozzle is enlarged, the cylindrical flow divider is connected with the tee joint through the corrugated pipe, the problem of refrigerant feeding cannot be affected, and the service life of the nozzle is prolonged. Therefore, the steam utilization rate can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a spray device of a spray type evaporator. Background Art

[0002] An evaporator is an object that converts liquid substances into gaseous substances. It mainly consists of two parts: a heating chamber and an evaporation chamber. The heating chamber provides the heat required for evaporation to the liquid, causing the liquid to boil and vaporize, while the evaporation chamber completely separates the gas and liquid phases. It is more common in the chemical industry, food industry, pharmaceutical industry and other fields.

[0003] The evaporation chamber in the existing evaporator mostly uses a nozzle to spray refrigerant onto the surface of the heat exchange tube, so that the atomized water droplets cover the surface of the heat exchange tube to form a liquid film, thereby achieving the function of rapid evaporation. However, in actual use, the existing spray equipment is mostly a fixed structure. Due to the large number of heat exchange tubes and the fixed angle of the nozzle, the number of water droplets on some heat exchange tubes is small, resulting in low steam utilization in the heat exchange tube and energy waste. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a spray device for a spray type evaporator.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A spray device of a spray-type evaporator comprises a shell, two circular baffles are fixedly connected to the surface of the shell, the surfaces of the shell are respectively connected to an air inlet pipe, a refrigerant pipe and an exhaust pipe, the side surfaces of the two circular baffles are rotatably connected to circular discs through bearings, the side surfaces of the two circular baffles are provided with a plurality of circular holes, the inner walls of the circular holes are fixedly connected to a heat exchange tube, the opposite surfaces of the two circular baffles are respectively rotatably connected to a first rotating rod and a second rotating rod, the opposite ends of the first rotating rod and the second rotating rod are fixedly connected to a spray assembly, the spray assembly comprises a cylindrical diverter, the surface of the cylindrical diverter is connected to a plurality of nozzles, the inner wall of the shell is fixedly connected to a tee, the two output ends of the tee are both connected to a bellows, the surface of the second rotating rod is fixedly connected to a passive bevel gear, the surface of the shell is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a circular rod, and the bottom end of the circular rod is fixedly connected to an active bevel gear;

[0007] The left side of the shell is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a connecting rod, the right end of the connecting rod is fixedly connected to a rotating disk, the right side of the rotating disk is fixedly connected to four positioning rods, and the right ends of the four positioning rods are fixedly connected to the left side of the disk.

[0008] Preferably, the surface of the cylindrical diverter is provided with a plurality of circular holes adapted to the nozzles, and the refrigerant in the cylindrical diverter is sprayed onto the surface of the heat exchange tube through each nozzle.

[0009] Preferably, the bottom end of the refrigerant pipe extends to the interior of the shell and is connected to the input end of the tee.

[0010] Preferably, the ends of the two bellows away from the tee are both connected to the interior of the cylindrical diverter. The cylindrical diverter rotates to pull the bellows to deform, so it will not affect the charging of the refrigerant.

[0011] Preferably, the bottom end of the round rod extends to the interior of the housing, and the driving bevel gear is meshed with the passive bevel gear, and the rotation of the driving bevel gear can drive the passive bevel gear to rotate.

[0012] Preferably, a circular through hole adapted to the connecting rod is opened on the left side of the shell, and the driving motor can drive the rotating disk to rotate through the connecting rod. A sealing ring is provided in the circular through hole to ensure that steam will not leak and be wasted.

[0013] The beneficial effects of the utility model are:

[0014] 1. The servo motor can drive the active bevel gear to rotate through the round rod. The active bevel gear drives the cylindrical diverter to rotate through the passive bevel gear and the second rotating rod, thereby increasing the spray range of the nozzle. The cylindrical diverter is connected to the tee through a bellows, which will not affect the refrigerant feed problem, thereby improving the steam utilization rate;

[0015] 2. The driving motor can drive the disc to rotate on the side of the circular partition through the connecting rod, the rotating disc and the positioning rod, thereby driving the heat exchange tube to rotate, so that the heat exchange tube does not have the problem of downward spraying dead angle, increases the contact area between the heat exchange tube and the refrigerant, increases the area of ​​the liquid film, and thus can improve the refrigerant evaporation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a spray device of a spray-type evaporator proposed in the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional disassembled structure of the spray assembly of the spray device of a spray type evaporator proposed by the present invention;

[0018] Figure 3 The utility model proposes a spray device for a spray evaporator Figure 2 A magnified schematic diagram of the structure in the middle.

[0019] In the figure: 1 shell, 2 circular partition, 3 intake pipe, 4 refrigerant pipe, 5 exhaust pipe, 6 disc, 7 heat exchange tube, 8 first rotating rod, 9 second rotating rod, 10 cylindrical diverter, 11 nozzle, 12 tee, 13 bellows, 14 passive bevel gear, 15 servo motor, 16 round rod, 17 active bevel gear, 18 drive motor, 19 connecting rod, 20 rotating disc, 21 positioning rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Example 1, with reference to Figure 1 、 Figure 2 and Figure 3 A spray device for a spray evaporator includes a shell 1, two circular partitions 2 are fixedly connected to the surface of the shell 1, and the surface of the shell 1 is respectively connected to an air inlet pipe 3, a refrigerant pipe 4, and an exhaust pipe 5. The sides of the two circular partitions 2 are rotatably connected to a disk 6 through a bearing. The sides of the two disks 6 are each provided with a plurality of circular holes, and the inner walls of the circular holes are fixedly connected to a heat exchange tube 7;

[0022] The opposite surfaces of the two circular partitions 2 are rotatably connected to the first rotating rod 8 and the second rotating rod 9, respectively. The opposite ends of the first rotating rod 8 and the second rotating rod 9 are fixedly connected to the spray assembly, which includes a cylindrical diverter 10. The surface of the cylindrical diverter 10 is connected to a plurality of nozzles 11. The surface of the cylindrical diverter 10 is provided with a plurality of circular holes adapted to the nozzles 11. A tee 12 is fixedly connected to the inner wall of the shell 1. The bottom end of the refrigerant pipe 4 extends to the interior of the shell 1 and is connected to the input end of the tee 12. The two output ends of the tee 12 are both connected to a bellows 13. The ends of the two bellows 13 away from the tee 12 are both connected to the interior of the cylindrical diverter 10.

[0023] The nozzles 11 are fixedly connected to the circular holes on the surface of the cylindrical manifold 10 by welding. The nozzles 11 are evenly distributed on the surface of the cylindrical manifold 10 according to the refrigerant flow rate, so that the refrigerant can be evenly sprayed on the surface of the heat exchange tube 7, thereby increasing the heat transfer coefficient of the outer film of the evaporator tube, thereby improving the heat transfer coefficient;

[0024] A passive bevel gear 14 is fixedly connected to the surface of the second rotating rod 9, a servo motor 15 is fixedly connected to the surface of the housing 1, a round rod 16 is fixedly connected to the output end of the servo motor 15, and a driving bevel gear 17 is fixedly connected to the bottom end of the round rod 16. The bottom end of the round rod 16 extends into the interior of the housing 1, and the driving bevel gear 17 is meshed with the passive bevel gear 14;

[0025] The servo motor 15 can drive the active bevel gear 17 to rotate through the round rod 16, thereby driving the cylindrical diverter 10 to rotate through the passive bevel gear 14 and the second rotating rod 9, thereby increasing the spray range of the nozzle 11 and ensuring that a liquid film can be formed on the surface of all heat exchange tubes 7.

[0026] Example 2: Reference Figure 1 and Figure 2 The left side of the housing 1 is fixedly connected to a drive motor 18, and the output end of the drive motor 18 is fixedly connected to a connecting rod 19. A circular through hole adapted to the connecting rod 19 is opened on the left side of the housing 1. The right end of the connecting rod 19 is fixedly connected to a rotating disk 20. Four positioning rods 21 are fixedly connected to the right side of the rotating disk 20. The right ends of the four positioning rods 21 are fixedly connected to the left side of the disc 6;

[0027] The driving motor 18 can drive the connecting rod 19 to rotate, thereby driving the disc 6 to rotate on the side of the circular partition 2 through the rotating disc 20 and the positioning rod 21, driving multiple heat exchange tubes 7 to rotate, ensuring that the heat exchange tubes 7 at different positions can change their positions and be fully sprayed.

[0028] Working principle: Steam enters the shell 1 through the air inlet pipe 3, flows through the heat exchange tube 7 and is discharged through the exhaust pipe 5. The refrigerant enters the cylindrical diverter 10 through the refrigerant pipe 4, the tee 12 and the bellows 13, and is sprayed into the shell 1 through each nozzle 11, so that a liquid film is formed on the surface of the heat exchange tube 7, accelerating the condensation of steam in the heat exchange tube 7 to produce condensed water. At the same time, the servo motor 15 can drive the active bevel gear 17 to rotate, thereby driving the cylindrical diverter 10 to rotate through the passive bevel gear 14 and the second rotating rod 9, thereby changing the spray angle of the nozzle 11 and increasing the spray range of the nozzle 11. At the same time, the driving motor 18 drives the disc 6 to rotate through the connecting rod 19, the rotating disk 20 and the positioning rod 21, so that the disc 6 drives the heat exchange tube 7 to rotate, thereby ensuring that there is no problem of spraying dead angles in the heat exchange tube 7, ensuring the evaporation efficiency and the utilization rate of the heating steam in the heat exchange tube 7.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spray device for a spray evaporator, comprising a shell (1), two circular partitions (2) fixedly connected to the surface of the shell (1), an air inlet pipe (3), a refrigerant pipe (4) and an exhaust pipe (5) respectively connected to the surface of the shell (1), the side surfaces of the two circular partitions (2) are rotatably connected to a disc (6) through a bearing, the side surfaces of the two discs (6) are each provided with a plurality of circular holes, the inner walls of the circular holes are fixedly connected to a heat exchange tube (7), the opposite surfaces of the two circular partitions (2) are rotatably connected to a first rotating rod (8) and a second rotating rod (9), the opposite ends of the first rotating rod (8) and the second rotating rod (9) are fixedly connected to a spray assembly, characterized in that The spray assembly comprises a cylindrical diverter (10), the surface of the cylindrical diverter (10) is connected to a plurality of nozzles (11), the inner wall of the housing (1) is fixedly connected to a tee (12), both output ends of the tee (12) are connected to a bellows (13), the surface of the second rotating rod (9) is fixedly connected to a passive bevel gear (14), the surface of the housing (1) is fixedly connected to a servo motor (15), the output end of the servo motor (15) is fixedly connected to a round rod (16), and the bottom end of the round rod (16) is fixedly connected to an active bevel gear (17); The left side of the housing (1) is fixedly connected to a driving motor (18), the output end of the driving motor (18) is fixedly connected to a connecting rod (19), the right end of the connecting rod (19) is fixedly connected to a rotating disk (20), the right side of the rotating disk (20) is fixedly connected to four positioning rods (21), and the right ends of the four positioning rods (21) are fixedly connected to the left side of the disc (6).

2. The spray device of a spray evaporator according to claim 1, characterized in that: The surface of the columnar flow divider (10) is provided with a plurality of circular holes adapted to the nozzles (11).

3. The spray device of a spray evaporator according to claim 1, characterized in that: The bottom end of the refrigerant pipe (4) extends to the interior of the shell (1) and is connected to the input end of the tee (12).

4. The spray device of a spray evaporator according to claim 1, characterized in that: One end of the two bellows (13) away from the tee (12) is communicated with the interior of the cylindrical flow divider (10).

5. The spray device of a spray evaporator according to claim 1, characterized in that: The bottom end of the round rod (16) extends to the interior of the housing (1), and the driving bevel gear (17) is meshed with the driven bevel gear (14).

6. The spray device of a spray evaporator according to claim 1, characterized in that: A circular through hole adapted to the connecting rod (19) is provided on the left side of the housing (1).

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