Energy-saving industrial refrigeration device and refrigeration method

Abstract

The present invention discloses an energy-saving industrial refrigeration device and a refrigeration method, which belong to the technical field of refrigeration equipment. The energy-saving industrial refrigeration device includes a compressor, an evaporator, a condenser and a filter that are interconnected by pipelines. An outer ring plate and an inner ring plate are installed inside the filter. Filter cores are provided in the inner cavities of the inner ring plate and the outer ring plate. A slide rail is provided above the filter. The rack can drive the inner ring plate and the outer ring plate to move upward through the clamping connection of the insertion strip and the limit plate. During the upward movement of the inner ring plate, the inner ring plate can be screwed into the outer ring plate, so that a gap can be formed between the inner ring plate and the outer ring plate, so that the inner ring plate and the outer ring plate can pass through the slide rail upward without interfering with the output shaft. In this way, the inner ring plate and the outer ring plate can be replaced within a limited space in the vertical direction.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to an energy-saving industrial refrigeration device and a refrigeration method. Background Art

[0002] Water-cooled units generally refer to centrifugal refrigeration units. Centrifugal refrigeration units for air conditioning (or centrifugal chillers) are composed of centrifugal refrigeration compressors, evaporators, condensers, main motors, air recovery devices, lubrication systems, and control cabinets.

[0003] Chinese invention patent CN119934705A discloses a seasonally adjustable machine room refrigeration device. When the filter cartridge needs to be replaced, the second rotating handle is rotated, thereby driving the threaded sleeve to rotate along the outer surface of the second screw. When the threaded sleeve rotates until it is separated from the outer surface of the second screw, the threaded sleeve will release the downward pressure on the filter plate, and the filter cartridge can now be removed from the interior of the filter.

[0004] The above-mentioned device removes the filter cartridge manually or through a lifting device. The former is more laborious to operate, while the latter requires a large amount of vertical space when removing the filter cartridge through a lifting device. When the vertical space is limited, the lifting device is more difficult to operate. In summary, there is still room for improvement in the above-mentioned device.

[0005] Therefore, it is necessary to provide an energy-saving industrial refrigeration device and a refrigeration method to solve the above technical problems. Summary of the Invention

[0006] The object of the present invention is to provide an energy-saving industrial refrigeration device and a refrigeration method to solve the problem that the existing device proposed in the above background technology has a large demand for vertical space when removing the filter cartridge through the lifting device, and when the vertical space is limited, the operation of the lifting device is more difficult.

[0007] Based on the above ideas, the present invention provides the following technical solution: an energy-saving industrial refrigeration device, comprising a compressor, an evaporator, a condenser, and a filter interconnected by pipelines, an outer ring plate and an inner ring plate installed inside the filter, filter elements are disposed in the inner cavities of the inner and outer ring plates, and a slide rail is disposed above the filter;

[0008] A rack that can be raised and lowered is slidably mounted on the slide rail, and an insertion strip is fixedly arranged on the outside of the rack. A strip-shaped limit plate is fixedly arranged on the inner wall of the outer ring plate, and a plug-in groove that matches the insertion strip is opened on the inner wall of the limit plate. When the rack moves downward so that the insertion strip is engaged with the limit plate, the rack can drive the inner and outer ring plates to move upward;

[0009] The filter and the inner ring plate are matched with each other through a limiting assembly, so that the inner ring plate can be screwed into the outer ring plate during the upward movement.

[0010] As a further solution of the present invention: the cross-sections of the plug slot and the insert strip are both T-shaped structures, a positioning hole is opened on the bottom surface of the plug slot, and a positioning column that matches the positioning hole is elastically connected to the outer side of the insert strip.

[0011] As a further solution of the present invention: a slide is slidably mounted on the slide rail, a drive motor is mounted on the top of the slide, and a gear meshing with the rack is fixedly provided on the output shaft of the drive motor.

[0012] As a further solution of the present invention: the limiting assembly includes a limiting rod, which is fixed to the inner wall of the filter. An arc groove is provided on the outer wall of the inner ring plate, and straight grooves are provided at both ends of the arc groove. The end of the limiting rod away from the filter can slide along the straight groove and the arc groove.

[0013] As a further solution of the present invention: the outer ring plate is respectively fixed with a main stop part and a secondary stop part at positions on both sides, the inner ring plate is integrally formed with a convex strip on one side, the convex strip is located between the main stop part and the secondary stop part, a guide groove is opened on the inner wall of the outer ring plate, and a guide block that slides with the guide groove is fixedly provided on the outer side surface of the convex strip.

[0014] As a further solution of the present invention: the guide groove is arranged along the circumference of the outer ring plate, and the cross-sections of the guide block and the guide groove are both T-shaped structures.

[0015] As a further solution of the present invention: a magnetic block is fixedly embedded on a side of the guide block opposite to the guide groove, and the opposite sides of the two magnetic blocks have different magnetic poles.

[0016] As a further solution of the present invention: the inner wall of the auxiliary stop portion is aligned with the side surface of the outer ring plate, and the outer wall of the main stop portion is aligned with the side surface of the outer ring plate.

[0017] As a further solution of the present invention: the inner ring plate and the outer ring plate are both semicircular structures, and the outer diameter of the inner ring plate is smaller than the inner diameter of the outer ring plate.

[0018] A method for refrigeration using the above-mentioned energy-saving industrial refrigeration device includes the following steps: achieving the circulation of cooling water through a compressor; using a filter to filter impurities in the cooling water; when it is necessary to replace the components in the filter, driving the rack to slide along the slide rail to the top of the filter, and using the rack to lift the components in the filter upward for replacement.

[0019] Compared with the prior art, the beneficial effect of the present invention is that: through the clamping connection between the insertion strip and the limit plate, the rack can drive the inner ring plate and the outer ring plate to move upward, and the inner ring plate can be screwed into the outer ring plate during the upward movement, so that a gap can be formed between the inner ring plate and the outer ring plate, so that the inner ring plate and the outer ring plate can pass upward through the slide rail without interfering with the output shaft. In this way, the replacement of the inner ring plate and the outer ring plate can be completed in a limited space in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the gear and rack cooperation of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the insert and the positioning column of the present invention;

[0025] Figure 5 It is a schematic diagram of the limiting plate and positioning hole structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the arc groove and straight groove structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the plug-in board and slot structure of the present invention;

[0028] Figure 8 is a schematic diagram of the inner ring plate of the present invention after deflection relative to the outer ring plate;

[0029] Figure 9 This is a schematic diagram of the connection structure between the positioning column and the pulling block of the present invention;

[0030] Figure 10 It is a schematic structural diagram of the guide block of the present invention.

[0031] In the figure: 1. filter; 101. slot; 2. hydraulic rod; 3. compressor; 4. rotating shaft; 5. cover plate; 501. connecting part; 6. bracket; 601. sheath; 7. gear; 8. rack; 9. slide rail; 10. ladder; 11. outer ring plate; 1101. main stop; 1102. auxiliary stop; 1103. guide groove; 12. inner ring plate; 1201. convex strip; 1202. arc groove; 1203. straight groove; 13. slide plate; 1301. slider; 14. screw rod; 15. inserting strip; 1501. positioning column; 16. traction rope; 17. box body; 1701. electromagnet; 18. limit plate; 1801. chamfer; 1802. positioning hole; 19. limit rod; 20. inserting plate; 21. output shaft; 22. traction block; 23. guide block. DETAILED DESCRIPTION

[0032] like Figures 1-10 As shown, an energy-saving industrial refrigeration device includes a compressor 3, an evaporator and a condenser. Here, the compressor 3 can use a variable frequency compressor to reduce energy consumption. All components are connected by pipes so that the cooling water can circulate. In actual use, in order to filter impurities in the circulating water, a filter 1 is also provided in the device that is connected to the condenser through a pipe so that the cooling water can flow between the filter 1 and the condenser. Figure 1 As shown, one of the pipes connected to the filter 1 is marked as s. When the cooling water is introduced into the filter 1 through the pipe s, the impurities in the cooling water can be filtered through the filter 1. Since the components are relatively common in refrigeration equipment, the specific structure and working principle of the components are not described in detail here.

[0033] Combine Figure 1-Figure 3 、 Figure 5-Figure 7 As shown, an outer ring plate 11 and an inner ring plate 12 are installed inside the filter 1, and the inner ring plate 12 and the outer ring plate 11 are both semicircular structures. The outer diameter of the inner ring plate 12 is smaller than the inner diameter of the outer ring plate 11. The inner ring plate 12 and the outer ring plate 11 are both hollow frame structures, and filter elements are provided in the inner cavities of the inner ring plate 12 and the outer ring plate 11, which is beneficial to filtering the circulating cooling water. Of course, through holes are provided on the surfaces of the inner ring plate 12 and the outer ring plate 11, which is beneficial to the entry of cooling water. In the initial state, the inner ring plate 12 and the outer ring plate 11 are arranged relative to each other, as shown in 3, Figure 5 As shown, at this time, the cooling water entering the filter 1 through the pipe s will flow between the inner ring plate 12 and the outer ring plate 11. During this process, impurities in the cooling water can be filtered through the filter element.

[0034] When the components inside the filter 1 are large in size, the components inside the filter 1 are generally replaced by lifting equipment. In order to facilitate the replacement of the components inside the filter 1, this solution provides a slide rail 9 at the upper position of the filter 1, and a lifting component is slidably assembled on the slide rail 9. When the lifting component moves along the slide rail 9 to the upper position of the filter 1, the lifting component can drive the inner ring plate 12 and the outer ring plate 11 to move upward, which is convenient for replacing them.

[0035] Furthermore, the lifting assembly mainly includes a rack 8 that can be lifted and lowered in the vertical direction, and an insert 15 is fixedly provided on the outer side of the rack 8. Figure 4-Figure 5 As shown, a strip-shaped limit plate 18 is fixedly provided on the inner wall of the outer ring plate 11, and a plug-in slot that matches the insert 15 is opened on the inner wall of the limit plate 18 in the vertical direction. When the lifting assembly moves to its position, the insert 15 can be inserted into the plug-in slot during the process of the rack 8 descending. Figure 4-Figure 5 It can be seen that the cross-sections of the insertion slot and the insertion strip 15 are both T-shaped structures, which is conducive to the stable cooperation between the insertion strip 15 and the limiting plate 18. A positioning hole 1802 is provided at the bottom surface of the inner part of the insertion slot, and the positioning hole 1802 is located near the bottom end of the limiting plate 18. The outer side surface of the insertion strip 15 is elastically connected with a positioning column 1501 that cooperates with the positioning hole 1802. As the insertion strip 15 gradually descends, when the positioning column 1501 is aligned with the positioning hole 1802, one end of the positioning column 1501 can be inserted into the positioning hole 1802, so that the outer ring plate 11 and the inner ring plate 12 can be driven to move upward during the upward movement of the rack 8.

[0036] Combine Figure 3 、 Figure 8 As shown, in order to drive the rack 8 to move up and down, this solution has a slide 13 slidably installed on the slide rail 9, and a drive motor is installed on the top of the slide 13. The output end of the drive motor is connected to the output shaft 21, and the output shaft 21 is fixed with a gear 7 that meshes with the rack 8. The forward and reverse rotation of the drive motor can drive the rack 8 to move in the vertical direction.

[0037] The inner ring plate 12 and the filter 1 are matched with each other through a limit assembly, so that as the outer ring plate 11 moves upward relative to the filter 1, the inner ring plate 12 can rotate relative to the outer ring plate 11, so that a gap is formed between the inner ring plate 12 and the outer ring plate 11, which is conducive to the inner ring plate 12 and the outer ring plate 11 being able to move upward relative to the output shaft 21 of the drive motor without interfering with it. In this way, the slide rail 9 can be closer to the filter 1, thereby making full use of the space in the vertical direction, so that the internal components of the filter 1 can be replaced within the limited space in the vertical direction.

[0038] Reference Figure 5-Figure 7 As shown, the limiting assembly includes a limiting rod 19, which is fixed to the inner wall of the filter 1. An arc groove 1202 is provided on the outer wall of the inner ring plate 12, and straight grooves 1203 are provided on the outer wall of the inner ring plate 12 at both ends of the arc groove 1202. The straight groove 1203 is connected to the arc groove 1202. In the initial state, one end of the limiting rod 19 is in the straight groove 1203 at the top.

[0039] During operation, when the lifting assembly moves to the specified position along the slide rail 9 and is above the filter 1, the engagement of the gear 7 and the rack 8 drives the rack 8 to move downward, so that the insertion strip 15 can be inserted into the limit plate 18. When the positioning column 1501 is aligned with the positioning hole 1802, the insertion strip 15 can be engaged with the limit plate 18, so that the gear 7 drives the rack 8 to move upward, which can drive the inner ring plate 12 and the outer ring plate 11 to move upward. During the upward movement of the inner ring plate 12, the limiting rod 19 will slide downward from the straight groove 1203 to the arc groove 1202, The inner ring plate 12 is rotated relative to the outer ring plate 11 by a certain angle, so that a gap can be formed between the inner ring plate 12 and the outer ring plate 11, and the output shaft 21 connected to the drive motor is within the range of this gap, so that the inner ring plate 12 and the outer ring plate 11 can pass upward through the slide rail 9 without interfering with the output shaft 21. After that, the lifting assembly is driven to move outward to the end of the slide rail 9, and the staff can replace the inner ring plate 12 and the outer ring plate 11. In this way, the replacement of the inner ring plate 12 and the outer ring plate 11 can be completed in a limited space in the vertical direction.

[0040] Combine Figure 4 、 Figure 9 As shown, a box body 17 is fixedly provided at the top position of the rack 8, and an electromagnet 1701 is fixedly installed at the top inside the box body 17, and a traction block 22 (the traction block 22 is made of iron) is slidably provided at the bottom end of the box body 17, and a circular hole that slides with the positioning column 1501 is opened on the insertion strip 15, and a spring is fixedly provided between the inner end face of the circular hole and the positioning column 1501, and a traction rope 16 is fixedly provided between the positioning column 1501 and the traction block 22, and the traction rope 16 passes through the insertion strip 15 and the box body 17 and slides with the two. In actual use, when the lifting assembly moves to the end of the slide rail 9, the staff can control the electromagnet 1701 to be energized, and use the suction force of the electromagnet 1701 on the traction block 22 to pull the traction rope 16, so that one end of the positioning column 1501 is moved out of the positioning hole 1802, which is conducive to replacing the inner ring plate 12 and the outer ring plate 11.

[0041] Further, combined with Figure 5-Figure 8As shown, a main stopper 1101 and a secondary stopper 1102 are fixed at positions on both sides of the outer ring plate 11, the inner wall of the secondary stopper 1102 is aligned with the side surface of the outer ring plate 11, and the outer wall of the main stopper 1101 is aligned with the side surface of the outer ring plate 11, and a ridge 1201 is integrally formed on one side surface of the inner ring plate 12, and the ridge 1201 is located between the main stopper 1101 and the secondary stopper 1102;

[0042] At least one guide groove 1103 is provided on the inner wall of the outer ring plate 11. The guide groove 1103 is arranged along the circumference of the outer ring plate 11, and a guide block 23 is fixedly provided on the outer side surface of the convex strip 1201 to slide with the guide groove 1103. The cross-sections of the guide block 23 and the guide groove 1103 are both T-shaped structures. Figure 6 、 Figure 10 As shown, the guide block 23 is fixedly embedded with a magnetic block on the side opposite to the guide groove 1103, and the two magnetic blocks have different magnetic poles on the sides opposite to each other. Before the outer ring plate 11 and the inner ring plate 12 are installed on the filter 1, the relative position of the inner ring plate 12 and the outer ring plate 11 is as shown in FIG. Figure 8 As shown, at this time, the guide block 23 is at the end of the guide groove 1103, and the inner ring plate 12 can remain stable relative to the outer ring plate 11 through the suction force of the two magnetic blocks. When the staff assembles the limit plate 18 on the outer ring plate 11 to the outside of the insertion strip 15, the electromagnet 1701 can be controlled to be in a de-energized state, so that the positioning column 1501 can pop out. When the positioning column 1501 cooperates with the positioning hole 1802, the insertion strip 15 is engaged with the outer ring plate 11. At this time, the lifting assembly is driven to move along the slide rail 9 to the position above the filter 1. Afterwards, the inner ring plate 12 and the outer ring plate 11 can be driven downward and inserted into the filter 1 through the cooperation of the gear 7 and the rack 8. During this process, the limit rod 19 will slide along the straight groove 1203 below to the arc groove 1202, thereby prompting the inner ring plate 12 to be rotated out of the outer ring plate 11 and finally be in a position as shown in FIG. Figure 5-Figure 6 In the state shown, at this time, the ridge 1201 and the auxiliary stop portion 1102, and the side of the inner ring plate 12 away from the ridge 1201 and the main stop portion 1101 are in a state of close contact, thereby being able to seal the gap between the inner ring plate 12 and the outer ring plate 11, so that the circulating cooling water can only pass through the filter elements on the inner ring plate 12 and the outer ring plate 11, and then flow out through the pipe connected to the bottom of the filter 1, which is beneficial to filtering impurities in the cooling water.

[0043] Reference Figure 7As shown, an insert plate 20 is fixedly provided on the bottom end surface of the outer ring plate 11 and the bottom end surface of the inner ring plate 12, and a slot 101 that cooperates with the insert plate 20 is opened on the inner bottom surface of the filter 1. When the lifting component drives the inner ring plate 12 and the outer ring plate 11 into the interior of the filter 1, the insert plate 20 can be inserted into the slot 101 and in close contact with it. On the one hand, it can position the inner ring plate 12 and the outer ring plate 11, and on the other hand, it can also maintain the stability of the inner ring plate 12 and the outer ring plate 11.

[0044] Reference Figure 1-2 As shown, a ladder 10 is fixedly provided at one end of the slide rail 9 , and a support is provided at the other end of the slide rail 9 . The support and the ladder 10 are fixed to the ground, thereby facilitating support for the slide rail 9 .

[0045] The top opening of the filter 1 is sealed by the cover plate 5. Specifically, a connecting portion 501 is welded on the outer peripheral wall of the cover plate 5. Support frames are provided at both ends of the connecting portion 501. The support frames are fixed to the outer wall of the filter 1, and a rotating shaft 4 is rotatably installed between the two support frames. The rotating shaft 4 passes through the connecting portion 501 and is fixedly connected thereto. A hydraulic rod 2 is also installed on the outside of the filter 1. Specifically, the tail end of the hydraulic rod 2 is hinged to the filter 1, and a rocker arm is fixedly provided on one end of the rotating shaft 4 passing through the support frame. The bottom end of the rocker arm is hinged to the telescopic end of the hydraulic rod 2. Through this structure, the hydraulic rod 2 can drive the cover plate 5 to deflect, thereby sealing the top opening of the filter 1. When the cover plate 5 is closed on the top of the filter 1, the cover plate 5 can also be locked by corresponding fasteners and other structures. Since this is a mature technical means, it will not be described here.

[0046] A slider 1301 is fixedly provided on the bottom surface of the slide 13, and the slider 1301 slides with the slide rail 9, and a screw rod 14 is provided at the lower position of the slide rail 9, and the screw rod 14 passes through the slider 1301 and is threadedly connected to it. In order to install the screw rod 14, a base is provided near both ends of the screw rod 14, and the base is fixedly connected to the slide rail 9, and the screw rod 14 passes through the base and rotates with it. A motor is also installed at the lower position of the slide rail 9, and the screw rod 14 passes through one end of the base and is connected to the output end of the motor through a belt or chain transmission, so as to drive the two screw rods 14 to rotate, thereby driving the slide 13 to move along the slide rail 9.

[0047] In order to maintain the stability of the movement of the rack 8, a sheath 601 is provided on the outer side of the rack 8, and the sheath 601 is fixedly connected to the slide 13 through the bracket 6. Of course, the bracket 6 can also pass through the above-mentioned gap.

[0048] Reference Figure 5As shown, a chamfer 1801 is provided on the inner side surface of the insertion slot and at the top position. In actual use, when the insertion strip 15 is inserted into the insertion slot, the positioning post 1501 can contact the chamfer 1801, so that the positioning post 1501 is compressed into the insertion strip 15. When the positioning post 1501 is aligned with the positioning hole 1802, the positioning post 1501 can pop out again and cooperate with the positioning hole 1802, thereby prompting the insertion strip 15 to be engaged with the limit plate 18.

Claims

1. An energy-saving industrial refrigeration device, comprising a compressor, an evaporator, a condenser, and a filter interconnected by a pipeline, characterized in that: An outer ring plate and an inner ring plate are installed inside the filter, filter elements are provided in the inner cavities of the inner ring plate and the outer ring plate, and a slide rail is provided above the filter; A rack that can be raised and lowered is slidably mounted on the slide rail, and an insertion strip is fixedly arranged on the outside of the rack. A strip-shaped limit plate is fixedly arranged on the inner wall of the outer ring plate, and a plug-in groove that matches the insertion strip is opened on the inner wall of the limit plate. When the rack moves downward so that the insertion strip is engaged with the limit plate, the rack can drive the inner and outer ring plates to move upward; The filter and the inner ring plate cooperate with each other through a limiting assembly so that the inner ring plate can be screwed into the outer ring plate during the upward movement; The outer ring plate is respectively fixed with a main stop part and a secondary stop part at positions on both sides, and a convex strip is integrally formed on one side of the inner ring plate, and the convex strip is located between the main stop part and the secondary stop part. A guide groove is provided on the inner wall of the outer ring plate, and a guide block that slides with the guide groove is fixed on the outer side surface of the convex strip.

2. An energy-saving industrial refrigeration device according to claim 1, characterized in that: The cross sections of the plug-in slot and the inserting strip are both T-shaped structures. A positioning hole is provided on the bottom surface of the plug-in slot, and a positioning column that matches the positioning hole is elastically connected to the outer side surface of the inserting strip.

3. An energy-saving industrial refrigeration device according to claim 2, characterized in that: A slide plate is slidably mounted on the slide rail, and a driving motor is mounted on the top of the slide plate. A gear meshing with the rack is fixedly arranged on the output shaft of the driving motor.

4. The energy-saving industrial refrigeration device according to claim 3, characterized in that: The limiting assembly includes a limiting rod, which is fixed to the inner wall of the filter. An arc groove is provided on the outer wall of the inner ring plate, and straight grooves are provided at both ends of the arc groove. The end of the limiting rod away from the filter can slide along the straight groove and the arc groove.

5. The energy-saving industrial refrigeration device according to claim 1, characterized in that: The guide groove is arranged along the circumference of the outer ring plate, and the cross sections of the guide block and the guide groove are both T-shaped structures.

6. The energy-saving industrial refrigeration device according to claim 1, characterized in that: A magnetic block is fixedly embedded on one side of the guide block opposite to the guide groove, and the two magnetic blocks have different magnetic poles on the opposite sides.

7. The energy-saving industrial refrigeration device according to claim 1, characterized in that: The inner wall of the auxiliary stop portion is aligned with the side surface of the outer ring plate, and the outer wall of the main stop portion is aligned with the side surface of the outer ring plate.

8. The energy-saving industrial refrigeration device according to claim 1, characterized in that: The inner ring plate and the outer ring plate are both semicircular structures, and the outer diameter of the inner ring plate is smaller than the inner diameter of the outer ring plate.

9. A method for refrigeration using the energy-saving industrial refrigeration device according to any one of claims 1 to 8, characterized in that: The process includes the following steps: achieving the circulation of cooling water through a compressor; filtering impurities in the cooling water using a filter; and when components in the filter need to be replaced, driving the rack to slide along the slide rail to the top of the filter, and lifting the components in the filter upward for replacement through the rack.

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