An evaporator device for an AS air-suspended oil-free variable frequency centrifugal chiller

Abstract

The invention discloses an evaporator device of an AS gas-suspended oil-free variable frequency centrifugal chiller, which belongs to the technical field of chillers. The evaporator device of an AS gas-suspended oil-free variable frequency centrifugal chiller comprises a shell, support seats are symmetrically arranged at both ends of the shell, one end of the shell is connected to an end cover 1, a water inlet and a water outlet are arranged on the end cover 1, the other end of the shell is connected to an end cover 2, a partition assembly is arranged inside the shell, a heat exchange tube penetrating the partition assembly is arranged inside the shell, filter plates are symmetrically arranged at both ends of the shell, a reciprocating assembly is movably arranged on the filter plate close to the end cover 1, a reversing assembly is connected between the reciprocating assembly and the heat exchange tube, and the evaporator device has the advantages of reciprocating movement, flexible reversing, extended flow time, efficient cooling and reliable structure.

Description

Technical Field

[0001] The invention relates to the technical field of chillers, and in particular to an evaporator device of an AS air-suspended oil-free variable frequency centrifugal chiller. Background Art

[0002] A chiller, also known as a freezer, refrigeration unit or ice water unit, is a multifunctional refrigeration equipment. It removes liquid vapor through a compression or heat absorption refrigeration cycle to achieve cooling or heating effects. Chillers are widely used in air conditioning units and industrial cooling, and are the indispensable "heart" of these systems. Chillers are mainly composed of a compressor, an evaporator, a condenser and an expansion valve. Among them, the evaporator is an important part of its refrigeration system, which is responsible for the liquid refrigerant absorbing heat, changing from liquid to gas, and producing the chilled water required for the process.

[0003] During the use of the evaporator device of the chiller, cooling water flows in a straight line from one end of the evaporator to the other end of the evaporator. During the flow of cooling water, the cooling water contacts the heat exchange tubes, and the refrigerant liquid in the heat exchange tubes absorbs the heat of the cooling water through the surface of the heat exchange tubes, thereby cooling the cooling water. However, the cooling water flow rate in the existing evaporator is relatively fast, and it is difficult for the cooling water to fully contact the heat exchange tubes, which affects the cooling effect of the cooling water. Moreover, the partitions arranged inside the evaporator will conduct heat, affecting the cooling effect of the cooling water.

[0004] Therefore, it is necessary to provide an evaporator device of an AS air-suspended oil-free variable frequency centrifugal chiller to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the embodiments of the present invention is to provide an evaporator device of an AS air-suspended oil-free variable frequency centrifugal chiller to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An evaporator device of an AS air suspension oil-free variable frequency centrifugal chiller comprises a shell, support seats are symmetrically arranged at both ends of the shell, one end of the shell is connected to an end cover 1, a water inlet and a water outlet are arranged on the end cover 1, the other end of the shell is connected to an end cover 2, a heat exchange tube is arranged inside the shell, filter plates are symmetrically arranged at both ends of the shell, and the inside of the shell also includes:

[0008] A partition assembly, wherein the partition assembly is arranged inside the housing;

[0009] A reciprocating component, wherein the reciprocating component is movably disposed on a filter plate near the end cover;

[0010] And a reversing component, wherein the reversing component is connected between the reciprocating moving component and the heat exchange tube.

[0011] As a further solution of the present invention, a liquid inlet pipe is provided at the bottom of the shell, a liquid outlet pipe is provided at the top of the shell, and a plurality of return plates 1 and 2 are provided on the inner wall of the shell, and the return plates 1 and 2 are respectively located on the lower side and the upper side of the partition assembly, the inner concave surface of the return plate 1 corresponds to the end cover 1, and the inner concave surface of the return plate 2 corresponds to the end cover 2, and the return plates 1 and 2 are both configured as bent plates.

[0012] As a further solution of the present invention, the heat exchange tube includes a plurality of coils arranged in an S shape, and the plurality of coils are equidistantly distributed along the length direction of the shell, and the upper ends or lower ends of two adjacent coils are connected by a conduit, and one end of the heat exchange tube is provided with a connecting tube 1 connected to the liquid inlet pipe, and the other end of the heat exchange tube is provided with a connecting tube 2 connected to the liquid outlet pipe.

[0013] As a further solution of the present invention, the partition assembly includes:

[0014] A heat-insulating plate, the heat-insulating plate being arranged in the middle of the inner side of the shell;

[0015] And a partition plate 2 and a partition plate 1, wherein the partition plate 2 and the partition plate 1 are respectively arranged on the upper side and the lower side of the heat preservation plate.

[0016] As a further solution of the present invention, the reciprocating assembly comprises:

[0017] A rotating rod 1, wherein the rotating rod 1 is rotatably arranged on the filter plate, an end of the rotating rod 1 close to the end cover 1 is connected to the abutment plate, and an end of the rotating rod 1 away from the abutment plate is provided with an oblique annular groove;

[0018] A spiral sheet, the spiral sheet is spirally arranged on the outer side of an end of the rotating rod away from the abutting disk;

[0019] A movable sleeve, the movable sleeve is movably mounted on the rotating rod 1, and a sliding column is provided in the movable sleeve and is slidably matched with the oblique ring groove;

[0020] A connecting plate connected to the outer end of the movable sleeve;

[0021] And a guide groove plate, wherein the guide groove plate is arranged on the first partition plate or the second partition plate and is slidably matched with the connecting plate.

[0022] As a further solution of the present invention, the reversing assembly comprises:

[0023] A mounting frame, wherein a plurality of mounting frames are provided and are arranged between two adjacent coils, and connecting rings connected to the heat exchange tubes are provided at both ends of the mounting frame;

[0024] A second rotating rod, wherein the second rotating rod is provided in a plurality and distributed along the length direction of the mounting frame, the second rotating rod is rotatably arranged on the mounting frame, and a reversing rotating plate is arranged on the outer side of the second rotating rod;

[0025] Connecting columns, wherein a plurality of connecting columns are provided and arranged at one end of the reversing rotating plate, and a plurality of connecting columns are rotatably connected to the hinged plate;

[0026] A transmission gear, which is rotatably arranged on a side of the mounting frame away from the reversing rotating plate and is connected to one of the rotating rods;

[0027] And a sliding rack, which is slidably arranged in the shell and meshed with the transmission gear, and the sliding rack is connected to an end of the connecting plate away from the movable sleeve.

[0028] As a further solution of the present invention, the bent plate is a J-shaped plate or a V-shaped plate.

[0029] As a further solution of the present invention, a horizontal plate is provided on the side of the end cover 1 and the end cover 2 that are close to each other.

[0030] As a further solution of the present invention, the sizes of partition one and partition two are consistent, the length of partition one is greater than the length of the insulation board, the two ends of the insulation board are respectively fitted with the corresponding cross plates, and the spacing between partition one and partition two is consistent with the thickness of the cross plate.

[0031] As a further solution of the present invention, the filter plate is configured as a semicircular mesh plate, and a plurality of filter holes are distributed on the filter plate.

[0032] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0033] 1. In the present invention, the temperature of the cooling water at the upper and lower ends of the housing can be maintained separately by setting the heat insulation plate, so as to avoid the cooling water after absorbing heat from absorbing heat through the partition plate 1 and the partition plate 2 to the introduced cooling water, thereby maintaining the heat absorption effect of the cooling water;

[0034] 2. In the present invention, when the cooling water in the shell flows from the end cover 1 to the end cover 2, the cooling water close to the inner wall of the shell will contact the return plate 1 and flow along the arc direction of the return plate 1, which can impact the cooling water flowing toward the end cover 2. When the cooling water in the shell flows from the end cover 2 to the end cover 1, the cooling water close to the inner wall of the shell will contact the return plate 2 and flow along the arc direction of the return plate 2, which can impact the cooling water flowing toward the end cover 1, thereby reducing the flow speed of the cooling water inside the shell, facilitating full contact between the cooling water and the heat exchange tube, effectively prolonging the heat absorption time, and improving the cooling effect;

[0035] 3. In the present invention, the cooling water drives the rotating rod 1 to rotate by contacting with the spiral sheet, and the rotating rod 1 drives the inclined ring groove to slide with the sliding column and the connecting plate to slide with the guide groove plate to drive the connecting plate to move back and forth, and the connecting plate drives the sliding rack to move back and forth synchronously, and the sliding rack drives the rotating rod 2 to rotate back and forth by meshing with the transmission gear and the rotating connection between the rotating rod 2 and the mounting frame, and the rotating rod 2 drives the reversing rotating plate arranged on the outside to swing synchronously. At the same time, the rotating rod 2 drives the other reversing rotating plates to rotate around the rotating rod 2 where it is located through the movable connection between the connecting column and the hinged plate, so as to realize the reciprocating swing of the angle of the reversing rotating plate, and to adjust the flow direction of the cooling water back and forth, so as to avoid the cooling water flowing in a single straight line and being unable to fully contact with the heat exchange tube, thereby extending the contact efficiency between the cooling water and the surface of the heat exchange tube and improving the heat exchange efficiency.

[0036] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a three-dimensional diagram of the evaporator device of the AS air-suspended oil-free variable frequency centrifugal chiller in the embodiment of the invention.

[0038] Figure 2 It is a cross-sectional view of the evaporator device of the AS air-suspended oil-free variable frequency centrifugal chiller in the embodiment of the invention.

[0039] Figure 3 It is a schematic diagram of the structure of the heat exchange tube in the embodiment of the invention.

[0040] Figure 4 It is a schematic diagram of the structure of the reciprocating moving component in the embodiment of the invention.

[0041] Figure 5 It is a schematic diagram of the structure of the reversing component in the embodiment of the invention.

[0042] Figure 6 It is a cross-sectional view of the housing in the embodiment of the invention.

[0043] Figure 7 It is a cross-sectional view of end cover 1 in an embodiment of the invention.

[0044] Figure 8 It is a schematic diagram of the structure of the rotating rod in the embodiment of the invention.

[0045] Fig. 9 It is a schematic diagram of the structure of the partition assembly in an embodiment of the invention.

[0046] Fig.10 It is a schematic diagram of the structure of the sliding rack in the embodiment of the invention.

[0047] Figure numerals: 1, housing; 101, liquid inlet pipe; 102, liquid outlet pipe; 103, reflux plate 1; 104, reflux plate 2; 2, end cover 1; 201, water inlet; 202, water outlet; 203, cross plate; 3, support seat; 4, end cover 2; 5, partition assembly; 501, partition 1; 502, insulation board; 503, partition 2; 6, heat exchange tube; 601, connecting pipe 1; 602, connecting pipe 2; 7, filter plate; 701, filter Hole; 8, reciprocating moving assembly; 801, abutment plate; 802, rotating rod one; 8021, oblique ring groove; 803, spiral sheet; 804, movable sleeve; 8041, sliding column; 805, connecting plate; 806, guide groove plate; 9, reversing assembly; 901, mounting frame; 902, connecting ring; 903, rotating rod two; 904, reversing rotating plate; 905, connecting column; 906, hinged plate; 907, transmission gear; 908, sliding rack. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0050] In one embodiment of the present invention, see Figure 1-3 , Figure 6 and Figure 7 An evaporator device of an AS gas-suspended oil-free variable frequency centrifugal chiller comprises a shell 1, support seats 3 are symmetrically arranged at both ends of the shell 1, an end cover 2 is connected to one end of the shell 1, a water inlet 201 and a water outlet 202 are arranged on the end cover 2, an end cover 4 is connected to the other end of the shell 1, a partition assembly 5 is arranged inside the shell 1, a heat exchange tube 6 penetrating the partition assembly 5 is arranged inside the shell 1, filter plates 7 are symmetrically arranged at both ends of the shell 1, a reciprocating assembly 8 is movably arranged on the filter plate 7 near the end cover 2, and a reversing assembly 9 is connected between the reciprocating assembly 8 and the heat exchange tube 6.

[0051] In this embodiment, the space inside the shell 1 can be sealed by connecting the shell 1, the end cover 1 2 and the end cover 2 4. After the cooling water enters the inside of the shell 1 through the water inlet 201, it will contact the heat exchange tube 6. The refrigerant liquid flowing in the heat exchange tube 6 will absorb the heat of the cooling water through the surface of the heat exchange tube 6, so that the temperature of the cooling water is reduced. At the same time, the refrigerant liquid will form gas after absorbing the heat and be discharged from the inside of the shell 1. By cooperating with the shell 1 and the heat exchange tube 6, the contact time between the cooling water and the surface of the heat exchange tube 6 can be increased, thereby improving the cooling effect. The cooling water will drive the reciprocating component 8 to reciprocate during the flow process. The reciprocating component 8 is connected to the reversing component 9. The direction of the water flow can be flexibly adjusted in a certain manner to avoid the problem of short cooling time caused by the straight flow of cooling water, effectively prolonging the flow time of the cooling water in the housing 1, and facilitating the full cooling operation of the cooling water. The filter plate 7 provided can filter the impurities in the introduced cooling water to prevent the impurities from accumulating in the housing 1 and blocking the flow channel of the cooling water, which is convenient for regular cleaning and maintenance. At the same time, it can also reduce air resistance. In addition, the flow rate of the cooling water passing through the filter plate 7 will increase. The cooling water with increased flow rate can drive the reciprocating component 8 to drive the reversing component 9 to reciprocate, thereby improving the linkage of the device, and has the advantages of reciprocating movement, flexible reversing, extended flow time, efficient cooling and reliable structure.

[0052] The bottom of the shell 1 is provided with a liquid inlet pipe 101, the top of the shell 1 is provided with a liquid outlet pipe 102, and the inner wall of the shell 1 is provided with a plurality of return plates 103 and return plates 104, the return plates 103 and return plates 104 are respectively located at the lower side and the upper side of the partition assembly 5, the return plates 103 and return plates 104 are both set as curved plates, and the curved plates can be J-shaped plates or V-shaped plates, the inner concave surface of the return plate 103 corresponds to the end cover 1 2, and the inner concave surface of the return plate 2 104 corresponds to the end cover 2 4, and the cooling water flows from the end cover 1 to the end cover 2 in the shell 1. In the process of cooling water flowing from the end cover 24 to the end cover 12, the cooling water near the inner wall of the shell 1 will contact the return plate 103 and flow along the curvature direction of the return plate 103, which can impact the cooling water flowing toward the end cover 24. In the process of cooling water flowing from the end cover 24 to the end cover 12 in the shell 1, the cooling water near the inner wall of the shell 1 will contact the return plate 104 and flow along the curvature direction of the return plate 104, which can impact the cooling water flowing toward the end cover 2, thereby reducing the flow speed of the cooling water inside the shell 1 and facilitating full contact between the cooling water and the heat exchange tube 6. The heat absorption time is effectively prolonged and the cooling effect is improved. The side where the end cover 1 2 and the end cover 2 4 are close to each other is provided with a horizontal plate 203. The horizontal plate 203 cooperates with the partition assembly 5 to separate the space in the shell 1 up and down to avoid mixing of the cooling water to be cooled and the cooling water after heat absorption, which is convenient for the stable export of the cooling water after heat absorption. The filter plate 7 is set as a semicircular mesh plate, and a plurality of filter holes 701 are distributed on the filter plate 7 to facilitate filtering the cooling water and increase the flow rate of the cooling water. The heat exchange tube 6 includes a plurality of coils arranged in an S shape, and a plurality of coils The coils are evenly distributed along the length direction of the shell 1, and the upper ends or lower ends of two adjacent coils are connected by a conduit. One end of the heat exchange tube 6 is provided with a connecting tube 1 601 connected to the liquid inlet pipe 101, and the other end of the heat exchange tube 6 is provided with a connecting tube 2 602 connected to the liquid outlet pipe 102. Through a plurality of coils, it is convenient to increase the contact time between the cooling water and the heat exchange tube 6 and improve the heat exchange efficiency. The horizontal spacing from the turning part of the coil to the inner wall of the shell 1 is consistent. "AS" in this application is the abbreviation of the English meaning of air suspension "AIRSUSPENSION".

[0053] In one embodiment of the present invention, see Figure 1-2 and Fig. 9 The partition assembly 5 includes a heat preservation plate 502 arranged in the middle of the inner side of the shell 1, and a partition 2 503 and a partition 1 501 are respectively arranged on the upper side and the lower side of the heat preservation plate 502.

[0054] In this embodiment, the cooling water at the upper and lower ends of the shell 1 can be stably supported and separated by partition 1 501 and partition 2 503, and the temperature of the cooling water at the upper and lower ends of the shell 1 can be maintained respectively by setting the insulation plate 502, so as to avoid the cooling water after absorbing heat from absorbing heat through partition 1 501 and partition 2 503 to absorb heat of the introduced cooling water, so as to maintain the heat absorption effect of the cooling water, wherein the sizes of partition 1 501 and partition 2 503 are the same, the length of partition 1 501 is greater than the length of insulation plate 502, the two ends of insulation plate 502 are respectively fitted with the corresponding horizontal plate 203, and the spacing between partition 1 501 and partition 2 503 is the same as the thickness of the horizontal plate 203, so as to ensure the effective separation of the cooling water at the upper and lower ends of the shell 1, and the insulation plate 502 is a commercially available insulation plate, which can be selected according to actual needs.

[0055] In one embodiment of the present invention, see Figure 1-2 , Figure 4-5 , Figure 8 and Fig.10 The reciprocating moving assembly 8 includes a rotating rod 802 rotatably arranged on the filter plate 7, the end of the rotating rod 802 close to the end cover 2 is connected to the abutment disk 801, the outer side of the end of the rotating rod 802 away from the abutment disk 801 is spirally provided with a spiral sheet 803, the end of the rotating rod 802 away from the abutment disk 801 is provided with an oblique annular groove 8021, the rotating rod 802 is movably sleeved with a movable sleeve 804, the movable sleeve 804 is provided with a sliding column 8041 that slidably cooperates with the oblique annular groove 8021, the outer end of the movable sleeve 804 is connected to a connecting plate 805, and the connecting plate 805 is slidably cooperated with a guide groove plate 806 arranged on the partition 1 501 or the partition 2 503;

[0056] The reversing assembly 9 includes a plurality of mounting frames 901 arranged between two adjacent coils, and connecting rings 902 connected to the heat exchange tube 6 are provided at both ends of the mounting frames 901, and a plurality of rotating rods 903 distributed along the length direction of the mounting frames 901 are rotatably provided on the mounting frames 901, and a reversing plate 904 is provided on the outer side of the rotating rods 903, and a connecting column 905 is provided at one end of the plurality of reversing plates 904, and a plurality of connecting columns 905 are rotatably connected to the hinged plate 906, and a transmission gear 907 connected to one of the rotating rods 903 is rotatably connected to the side of the mounting frame 901 away from the reversing plate 904, and a sliding rack 908 meshing with the transmission gear 907 is slidably provided in the outer shell 1, and the sliding rack 908 is connected to the end of the connecting plate 805 away from the movable sleeve 804.

[0057] In this embodiment, the cooling water passing through the water inlet 201 will flow into the interior of the housing 1 through the filter plate 7. The cooling water pushes the rotating rod 802 to rotate by contacting the spiral sheet 803. The rotating rod 802 drives the sliding cooperation between the oblique annular groove 8021 and the sliding column 8041 and the sliding cooperation between the connecting plate 805 and the guide groove plate 806 to drive the connecting plate 805 to move back and forth. The connecting plate 805 drives the sliding rack 908 to reciprocate synchronously. The sliding rack 908 drives the rotating rod by meshing with the transmission gear 907 and the rotating rod 2 903 is rotatably connected to the mounting frame 901. The second rotating rod 903 rotates back and forth, and the rotating rod 903 drives the reversing rotating plate 904 set on the outside to swing synchronously. At the same time, the rotating rod 903 drives other reversing rotating plates 904 to rotate around the second rotating rod 903 through the movable connection between the connecting column 905 and the hinged plate 906, so that the reciprocating swing of the reversing rotating plate 904 can be realized, and the flow direction of the cooling water can be reciprocated to avoid the cooling water flowing in a single straight line and unable to fully contact with the heat exchange tube 6, thereby extending the contact efficiency between the cooling water and the surface of the heat exchange tube 6 and improving the heat exchange efficiency. Three rotating rods 903 are arranged on a single mounting frame 901.

[0058] Specific:

[0059] The cooling water enters between the end cover 2 and the filter plate 7 through the water inlet 201. Then, after being filtered and accelerated by the filter plate 7, the cooling water pushes the rotating rod 802 to rotate by contacting with the spiral sheet 803. The rotating rod 802 drives the inclined ring groove 8021 to slide with the sliding column 8041 and the connecting plate 805 to slide with the guide groove plate 806 to drive the connecting plate 805 to reciprocate. The connecting plate 805 drives the sliding rack 908 to reciprocate synchronously. The sliding rack 908 The second rotating rod 903 is driven to reciprocate by meshing with the transmission gear 907 and the rotation connection between the second rotating rod 903 and the mounting frame 901, and the second rotating rod 903 drives the reversing rotating plate 904 arranged on the outside to swing synchronously. At the same time, the second rotating rod 903 drives other reversing rotating plates 904 to rotate around the second rotating rod 903 through the movable connection between the connecting column 905 and the hinge plate 906, so that the reciprocating swing of the reversing rotating plate 904 can be realized, and the flow direction of the cooling water can be reciprocated.

[0060] At the same time, when the cooling water flows from the end cover 1 2 to the end cover 2 4 in the shell 1, the cooling water close to the inner wall of the shell 1 will contact the return plate 103 and flow along the arc direction of the return plate 103, which can impact the cooling water flowing toward the end cover 2 4, reduce the flow speed of the cooling water inside the shell 1, and facilitate the full contact between the cooling water and the heat exchange tube 6;

[0061] The refrigerant liquid after absorbing heat is discharged through the liquid outlet pipe 102, and the cooling water after cooling is discharged through the water outlet 202, so that the cooling water after cooling can be stably discharged.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An evaporator device of an AS air suspension oil-free variable frequency centrifugal chiller, comprising a shell, support seats are symmetrically arranged at both ends of the shell, one end of the shell is connected to an end cover 1, a water inlet and a water outlet are arranged on the end cover 1, and the other end of the shell is connected to an end cover 2, characterized in that: The shell is provided with a heat exchange tube, filter plates are symmetrically provided at both ends of the shell, and the shell also includes: A partition assembly, wherein the partition assembly is arranged inside the housing; A reciprocating component, wherein the reciprocating component is movably disposed on a filter plate near the end cover; and a reversing assembly connected between the reciprocating assembly and the heat exchange tube; Wherein, a liquid inlet pipe is provided at the bottom of the shell, a liquid outlet pipe is provided at the top of the shell, a plurality of return plates 1 and 2 are provided on the inner wall of the shell, the return plates 1 and 2 are respectively located at the lower side and the upper side of the partition assembly, the inner concave surface of the return plate 1 corresponds to the end cover 1, the inner concave surface of the return plate 2 corresponds to the end cover 2, and the return plates 1 and 2 are both configured as curved plates; The heat exchange tube comprises a plurality of coils arranged in an S shape, the plurality of coils are equidistantly distributed along the length direction of the shell, the upper ends or lower ends of two adjacent coils are connected by a conduit, one end of the heat exchange tube is provided with a connecting tube 1 connected to the liquid inlet pipe, and the other end of the heat exchange tube is provided with a connecting tube 2 connected to the liquid outlet pipe; The reciprocating moving assembly comprises a rotating rod 1, the rotating rod 1 is rotatably arranged on the filter plate, the end of the rotating rod 1 close to the end cover 1 is connected to an abutment plate, and the end of the rotating rod 1 away from the abutment plate is provided with an oblique annular groove; a spiral sheet, the spiral sheet is spirally arranged on the outer side of the end of the rotating rod 1 away from the abutment plate; a movable sleeve, the movable sleeve is movably sleeved on the rotating rod 1, and a sliding column is provided in the movable sleeve that slidably cooperates with the oblique annular groove; a connecting plate, the connecting plate is connected to the outer end of the movable sleeve; and a guide groove plate, the guide groove plate is arranged on the partition plate 1 or the partition plate 2 and slidably cooperates with the connecting plate; The reversing assembly includes a mounting frame, which is provided with a plurality of mounting frames and is arranged between two adjacent coils, and connecting rings connected to the heat exchange tubes are provided at both ends of the mounting frame; a second rotating rod, which is provided with a plurality of rotating rods and distributed along the length direction of the mounting frame, and the second rotating rod is rotatably arranged on the mounting frame, and a reversing plate is provided on the outer side of the second rotating rod; a connecting column, which is provided with a plurality of connecting columns and is arranged at one end of the reversing plate, and a plurality of connecting columns are rotatably connected to the hinge plate; a transmission gear, which is rotatably arranged on a side of the mounting frame away from the reversing plate and connected to one of the second rotating rods; and a sliding rack, which is slidably arranged in the outer shell and meshes with the transmission gear, and the sliding rack is connected to an end of the connecting plate away from the movable sleeve.

2. The evaporator device of the AS air suspension oil-free variable frequency centrifugal chiller according to claim 1 is characterized in that: The partition assembly comprises: A heat-insulating plate, the heat-insulating plate being arranged in the middle of the inner side of the shell; And a partition plate 2 and a partition plate 1, wherein the partition plate 2 and the partition plate 1 are respectively arranged on the upper side and the lower side of the heat preservation plate.

3. The evaporator device of the AS air suspension oil-free variable frequency centrifugal chiller according to claim 1 is characterized in that: The bent plate is a J-shaped plate or a V-shaped plate.

4. The evaporator device of the AS air suspension oil-free variable frequency centrifugal chiller according to claim 2 is characterized in that: A transverse plate is provided on one side of the end cover 1 and the end cover 2 which are close to each other.

5. The evaporator device of the AS air suspension oil-free variable frequency centrifugal chiller according to claim 4 is characterized in that: The sizes of partition one and partition two are consistent, the length of partition one is greater than the length of the insulation board, the two ends of the insulation board are respectively fitted with the corresponding cross plates, and the distance between partition one and partition two is consistent with the thickness of the cross plate.

6. The evaporator device of the AS air suspension oil-free variable frequency centrifugal chiller according to claim 1 is characterized in that: The filter plate is configured as a semicircular mesh plate, and a plurality of filter holes are distributed on the filter plate.

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