Centrifugal water chilling unit convenient to overhaul

Abstract

The utility model discloses a centrifugal chiller unit convenient to overhaul, which comprises a plurality of centrifugal chiller bodies and separating parts, and the separating parts are fixedly mounted on the centrifugal chiller bodies and comprise buckle components and locking components. The cover shells at the two ends of the evaporator and the condenser are convenient to mount and dismount, the evaporator and the condenser are convenient to overhaul, the pull rod is pulled, the pull rod drives the connecting plate, the connecting plate drives the concave buckling plate to do circular motion around the buckling base as the axis, the groove of the concave buckling plate can clamp the pipe closed ring and the cover closed ring, and meanwhile the pipe closed ring and the cover closed ring are fixed. When the pipe closed ring and the cover closed ring are completely clamped by the displacement plate and the groove of the concave buckling plate, the unlocking rod is loosened, the reset spring is reset, the locking rod moves into the locking hole, the buckling assembly is locked, and swinging is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal chillers, and particularly relates to a centrifugal chiller unit convenient for maintenance. Background Art

[0002] A centrifugal chiller unit is an efficient commercial or industrial refrigeration device that realizes a refrigeration cycle by accelerating refrigerant gas through a centrifugal compressor.

[0003] In the current design of centrifugal chiller units on the market, their condensers usually adopt the traditional flange connection method to seal the pipe orifices. Although this connection technology has a certain reliability in ensuring the sealing performance, several limitations have emerged during actual maintenance and repair:

[0004] 1. Complicated disassembly: Flange connection involves the tightening and loosening of multiple bolts. Especially in large condensers, the flange disk has a large area and a large number of bolts, which not only greatly increases the workload of disassembly and reassembly, but also may require professional tools and additional human resources, resulting in low maintenance efficiency.

[0005] 2. Increased maintenance cost: Frequent disassembly and re-tightening of flange bolts are likely to cause damage to the bolts or flange surfaces, and parts may need to be replaced regularly. Coupled with the required labor costs, the overall maintenance cost increases accordingly.

[0006] 3. Potential leakage risk: Flange connection depends on the sealing effect of gaskets. Long-term operation or multiple disassembly and assembly may cause the gaskets to age or deform, thereby causing refrigerant leakage problems, which not only affect the system efficiency, but also may pollute the environment and pose safety hazards.

[0007] 4. Restricted maintenance flexibility: Due to the complexity of flange connection, when performing partial maintenance or inspection on the condenser, it is often necessary to perform major disassembly on the entire connection part, which restricts the ability to quickly locate and handle problems and is not conducive to the convenience of daily maintenance.

[0008] Therefore, how to provide a centrifugal chiller unit convenient for maintenance is an urgent problem for those skilled in the art to solve. Content of the Utility Model

[0009] An object of the present utility model is to provide a centrifugal chiller that is convenient for maintenance. The present utility model enables the easy installation and disassembly of the cover shells at both ends of the evaporator and the condenser, facilitating the maintenance of the evaporator and the condenser. By pulling the pull rod, the pull rod drives the connecting plate, and the connecting plate drives the concave snap plate to rotate in a circular motion around the snap seat as the axis. The groove of the concave snap plate can hold the pipe closed loop and the cover closed loop simultaneously. At the same time, it is necessary to pull the unlocking rod. The unlocking rod drives the displacement plate, and the displacement plate drives the locking rod to retract into the locking box. When the groove of the displacement plate and the concave snap plate completely holds the pipe closed loop and the cover closed loop, release the unlocking rod, and the return spring resets. The locking rod moves into the locking hole to lock the snap component and prevent it from swinging.

[0010] A centrifugal chiller that is convenient for maintenance according to an embodiment of the present utility model includes a plurality of centrifugal chiller bodies and separation components, and the separation components are fixedly installed on the centrifugal chiller bodies:

[0011] The separation components include a snap component and a locking component. The snap component is fixedly installed on the centrifugal chiller body, and the locking component is fixedly installed on the centrifugal chiller body.

[0012] Further, the centrifugal chiller body includes a frame, a mounting plate, an evaporator, and a condenser. Among them, both ends of the mounting plate are fixedly installed on the top of the frame, both ends of the evaporator are fixedly installed on the frame, and both ends of the condenser are fixedly installed on the frame.

[0013] Further, the evaporator includes an evaporation tube body, a pipe closed loop, an evaporation cover, and a cover closed loop. Among them, both ends of the evaporation tube body are fixedly installed on the frame, the pipe closed loop is fixedly installed at both ends of the evaporation tube body, the evaporation cover is fixedly installed on the pipe closed loop, and the cover closed loop is fixedly installed at the open end of the evaporation cover.

[0014] Further, a convex ring is fixedly arranged on the end face of the pipe closed loop facing the cover closed loop, a groove is formed on the end face of the cover closed loop facing the pipe closed loop, and a sealing rubber ring is fixedly arranged on the end face of the cover closed loop facing the pipe closed loop.

[0015] Further, the snap component is fixedly installed on the pipe closed loop, and the locking component is fixedly installed on the cover closed loop.

[0016] Further, the centrifugal chiller body includes a motor, a compressor, an exhaust pipe, a suction pipe, and a functional cabinet. Among them, the bottom of the motor is fixedly installed on the top of the mounting plate, the bottom of the compressor is fixedly installed on the top of the mounting plate, one end of the exhaust pipe is fixedly installed on the compressor, the other end of the exhaust pipe is fixedly installed on the pipe body of the condenser, one end of the suction pipe is fixedly installed on the compressor, the other end of the suction pipe is fixedly installed on the evaporation pipe body, and the bottom of the functional cabinet is fixedly installed on the top of the mounting plate.

[0017] Further, the buckle assembly includes a buckle seat, a concave buckle plate, a locking hole, a connecting plate, and a pull rod. Among them, the buckle seat is fixedly installed on the pipe closed loop, one end of the concave buckle plate is rotatably installed on the buckle seat, the locking hole is opened at the other end of the concave buckle plate, the connecting plate is fixedly installed on the non-concave end face of the concave buckle plate, and one end of the pull rod is fixedly installed on the connecting plate.

[0018] Further, the locking assembly includes a locking box, a displacement plate, an unlocking rod, an unlocking groove, a locking rod, a return spring, and a limiting block. Among them, the locking box is fixedly installed on the cover closed loop, the displacement plate is slidably installed in the locking box, both ends of the unlocking rod are fixedly installed on the displacement plate, the unlocking groove is opened on the locking box, one end of the locking rod is fixedly installed on one side of the displacement plate, one end of the return spring is fixedly installed on the other side of the displacement plate, the other end of the return spring is fixedly installed on the inner wall of the locking box, and the limiting block is fixedly installed on the inner wall of the locking box.

[0019] Further, a lifting column is fixedly provided at the bottom of the centrifugal chiller body.

[0020] The beneficial effects of the present utility model are as follows:

[0021] The present utility model realizes the convenience of installing and disassembling the cover shells at both ends of the evaporator and the condenser, facilitating the maintenance of the evaporator and the condenser. By pulling the pull rod, the pull rod drives the connecting plate, and the connecting plate drives the concave buckle plate to perform a circular motion around the buckle seat as the axis. The groove of the concave buckle plate can hold the pipe closed loop and the cover closed loop at the same time. Meanwhile, it is necessary to pull the unlocking rod, the unlocking rod drives the displacement plate, and the displacement plate drives the locking rod to retract into the locking box. When the displacement plate and the groove of the concave buckle plate completely hold the pipe closed loop and the cover closed loop, release the unlocking rod, the return spring resets, and the locking rod displaces into the locking hole to lock the buckle assembly to prevent swinging. Description of the Drawings

[0022] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0023] Figure 1 The overall structural schematic diagram of a centrifugal chiller convenient for maintenance proposed by the present utility model;

[0024] Figure 2 A centrifugal chiller convenient for maintenance proposed by the present utility model Figure 1 Enlarged view of part A;

[0025] Figure 3 Cross-sectional view of the evaporation tube body of a centrifugal chiller convenient for maintenance proposed by the present utility model;

[0026] Figure 4 A centrifugal chiller convenient for maintenance proposed by the present utility model Figure 3 Enlarged view of part B.

[0027] In the figure: 1, centrifugal chiller body; 1.1, elevation column; 2, separation component; 3, buckle assembly; 3.1, buckle seat; 3.2, concave buckle plate; 3.3, locking hole; 3.4, connecting plate; 3.5, pull rod; 4, locking component; 4.1, locking box; 4.2, displacement plate; 4.3, unlocking rod; 4.4, unlocking groove; 4.5, locking rod; 4.6, return spring; 4.7, limit block; 5, frame; 6, mounting plate; 7, evaporator; 7.1, evaporation tube body; 7.2, tube closed loop; 7.3, evaporation cover; 7.4, cover closed loop; 7.5, convex ring; 7.6, groove; 7.7, sealing rubber ring; 8, condenser; 9, motor; 10, compressor; 11, exhaust pipe; 12, suction pipe; 13, functional cabinet. Specific embodiments

[0028] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0029] Please refer to Figures 1 to 4 , the present utility model provides a centrifugal chiller convenient for maintenance, including a plurality of centrifugal chiller bodies 1 and separation components 2. The separation components 2 are fixedly installed on the centrifugal chiller bodies 1: The separation components 2 include a buckle assembly 3 and a locking assembly 4. The buckle assembly 3 is fixedly installed on the centrifugal chiller bodies 1. The buckle assembly 3 buckles the cover shells at both ends of the evaporator 7 and the condenser 8. The locking assembly 4 is fixedly installed on the centrifugal chiller bodies 1, and the locking assembly 4 locks the buckle assembly 3.

[0030] Specifically, the centrifugal chiller body 1 includes a frame 5, a mounting plate 6, an evaporator 7 and a condenser 8. Among them, both ends of the mounting plate 6 are fixedly installed on the top of the frame 5, both ends of the evaporator 7 are fixedly installed on the frame 5, both ends of the condenser 8 are fixedly installed on the frame 5. The cover shells at both ends of the condenser 8 have the same structure as the tube closed-loop 7.2, evaporation cover 7.3, cover closed-loop 7.4, convex ring 7.5, groove 7.6 and sealing rubber ring 7.7 of the evaporator 7, and the same buckle assembly 3 and locking assembly 4 as those of the evaporator 7 are also provided at the connection of the cover shells of the condenser 8.

[0031] The centrifugal chiller body 1 includes a motor 9, a compressor 10, an exhaust pipe 11, a suction pipe 12 and a functional cabinet 13. Among them, the bottom of the motor 9 is fixedly installed on the top of the mounting plate 6, the bottom of the compressor 10 is fixedly installed on the top of the mounting plate 6, one end of the exhaust pipe 11 is fixedly installed on the compressor 10, the other end of the exhaust pipe 11 is fixedly installed on the tube body of the condenser 8, one end of the suction pipe 12 is fixedly installed on the compressor 10, the other end of the suction pipe 12 is fixedly installed on the evaporation tube body 7.1, the bottom of the functional cabinet 13 is fixedly installed on the top of the mounting plate 6, and a lifting column 1.1 is fixedly arranged at the bottom of the centrifugal chiller body 1.

[0032] More specifically, the evaporator 7 includes an evaporation tube body 7.1, a tube closed-loop 7.2, an evaporation cover 7.3 and a cover closed-loop 7.4. Among them, both ends of the evaporation tube body 7.1 are fixedly installed on the frame 5, the tube closed-loop 7.2 is fixedly installed at both ends of the evaporation tube body 7.1, the evaporation cover 7.3 is fixedly installed on the tube closed-loop 7.2, and the cover closed-loop 7.4 is fixedly installed at the open end of the evaporation cover 7.3.

[0033] The end face of the tube closed-loop 7.2 facing the cover closed-loop 7.4 is fixedly provided with a convex ring 7.5, the end face of the cover closed-loop 7.4 facing the tube closed-loop 7.2 is provided with a groove 7.6, and the end face of the cover closed-loop 7.4 facing the tube closed-loop 7.2 is fixedly provided with a sealing rubber ring 7.7; the buckle assembly 3 is fixedly installed on the tube closed-loop 7.2, the locking assembly 4 is fixedly installed on the cover closed-loop 7.4, and the convex ring 7.5, groove 7.6 and sealing rubber ring 7.7 play a better sealing role.

[0034] Even more specifically, the buckle assembly 3 includes a buckle seat 3.1, a concave buckle plate 3.2, a locking hole 3.3, a connecting plate 3.4 and a pull rod 3.5. Among them, the buckle seat 3.1 is fixedly installed on the tube closed-loop 7.2, one end of the concave buckle plate 3.2 is rotatably installed on the buckle seat 3.1, the groove of the concave buckle plate 3.2 can catch the tube closed-loop 7.2 and the cover closed-loop 7.4, the locking hole 3.3 is opened at the other end of the concave buckle plate 3.2, the connecting plate 3.4 is fixedly installed on the non-concave end face of the concave buckle plate 3.2, and one end of the pull rod 3.5 is fixedly installed on the connecting plate 3.4.

[0035] The locking component 4 includes a locking box 4.1, a displacement plate 4.2, an unlocking rod 4.3, an unlocking groove 4.4, a locking rod 4.5, a return spring 4.6 and a limiting block 4.7. Among them, the locking box 4.1 is fixedly installed on the cover closed loop 7.4, the displacement plate 4.2 is slidably installed in the locking box 4.1, both ends of the unlocking rod 4.3 are fixedly installed on the displacement plate 4.2, the unlocking groove 4.4 is opened on the locking box 4.1, one end of the locking rod 4.5 is fixedly installed on one side of the displacement plate 4.2, the locking rod 4.5 is inserted into the locking hole 3.3 for locking, one end of the return spring 4.6 is fixedly installed on the other side of the displacement plate 4.2, the other end of the return spring 4.6 is fixedly installed on the inner wall of the locking box 4.1, and the limiting block 4.7 is fixedly installed on the inner wall of the locking box 4.1, and the limiting block 4.7 limits the displacement space of the displacement plate 4.2.

[0036] Furthermore, pulling the pull rod 3.5, the pull rod 3.5 drives the connecting plate 3.4, the connecting plate 3.4 drives the concave snap plate 3.2 to make a circular motion around the snap seat 3.1 as the axis. The groove of the concave snap plate 3.2 can hold the pipe closed loop 7.2 and the cover closed loop 7.4 at the same time. Meanwhile, it is necessary to pull the unlocking rod 4.3. The unlocking rod 4.3 drives the displacement plate 4.2, and the displacement plate 4.2 drives the locking rod 4.5 to retract into the locking box 4.1. When the groove of the displacement plate 4.2 and the concave snap plate 3.2 completely hold the pipe closed loop 7.2 and the cover closed loop 7.4, release the unlocking rod 4.3, the return spring 4.6 resets, and the locking rod 4.5 displaces into the locking hole 3.3 to lock the snap component 3 and prevent swinging.

[0037] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A centrifugal chiller that is easy to maintain, characterized in that: It comprises a plurality of centrifugal chiller bodies (1) and separation components (2), wherein the separation components (2) are fixedly mounted on the centrifugal chiller bodies (1): The separation component (2) comprises a buckle assembly (3) and a locking assembly (4); the buckle assembly (3) is fixedly mounted on the centrifugal chiller body (1); and the locking assembly (4) is fixedly mounted on the centrifugal chiller body (1).

2. A centrifugal chiller convenient for maintenance according to claim 1, characterized in that: The centrifugal chiller body (1) comprises a frame (5), a mounting plate (6), an evaporator (7) and a condenser (8), wherein both ends of the mounting plate (6) are fixedly mounted on the top of the frame (5), both ends of the evaporator (7) are fixedly mounted on the frame (5), and both ends of the condenser (8) are fixedly mounted on the frame (5).

3. A centrifugal chiller convenient for maintenance according to claim 2, characterized in that: The evaporator (7) comprises an evaporation tube body (7.1), a tube closed loop (7.2), an evaporation cover (7.3) and a cover closed loop (7.4), wherein both ends of the evaporation tube body (7.1) are fixedly mounted on a frame (5), the tube closed loop (7.2) is fixedly mounted on both ends of the evaporation tube body (7.1), the evaporation cover (7.3) is fixedly mounted on the tube closed loop (7.2), and the cover closed loop (7.4) is fixedly mounted on an open end of the evaporation cover (7.3).

4. The centrifugal chiller with convenient maintenance according to claim 3, characterized in that: A convex ring (7.5) is fixedly provided on the end surface of the tube closed ring (7.2) facing the cover closed ring (7.4), a groove (7.6) is provided on the end surface of the cover closed ring (7.4) facing the tube closed ring (7.2), and a sealing rubber ring (7.7) is fixedly provided on the end surface of the cover closed ring (7.4) facing the tube closed ring (7.2).

5. The centrifugal chiller with convenient maintenance according to claim 1, characterized in that: The buckle assembly (3) is fixedly mounted on the tube closed ring (7.2), and the locking assembly (4) is fixedly mounted on the cover closed ring (7.4).

6. The centrifugal chiller with convenient maintenance according to claim 1, characterized in that: The centrifugal chiller body (1) comprises a motor (9), a compressor (10), an exhaust pipe (11), an intake pipe (12) and a functional cabinet (13), wherein the bottom of the motor (9) is fixedly mounted on the top of a mounting plate (6), the bottom of the compressor (10) is fixedly mounted on the top of the mounting plate (6), one end of the exhaust pipe (11) is fixedly mounted on the compressor (10), the other end of the exhaust pipe (11) is fixedly mounted on the tube body of a condenser (8), one end of the intake pipe (12) is fixedly mounted on the compressor (10), the other end of the intake pipe (12) is fixedly mounted on the evaporator tube body (7.1), and the bottom of the functional cabinet (13) is fixedly mounted on the top of the mounting plate (6).

7. The centrifugal chiller with convenient maintenance according to claim 1, characterized in that: The buckle assembly (3) comprises a buckle seat (3.1), a concave buckle plate (3.2), a locking hole (3.3), a connecting plate (3.4) and a pull rod (3.5), wherein the buckle seat (3.1) is fixedly mounted on the tube closed loop (7.2), one end of the concave buckle plate (3.2) is rotatably mounted on the buckle seat (3.1), the locking hole (3.3) is formed on the other end of the concave buckle plate (3.2), the connecting plate (3.4) is fixedly mounted on the non-concave end surface of the concave buckle plate (3.2), and one end of the pull rod (3.5) is fixedly mounted on the connecting plate (3.4).

8. The centrifugal chiller with convenient maintenance according to claim 1, characterized in that: The locking assembly (4) comprises a locking box (4.1), a displacement plate (4.2), an unlocking rod (4.3), an unlocking groove (4.4), a locking rod (4.5), a reset spring (4.6) and a limit block (4.7), wherein the locking box (4.1) is fixedly mounted on a cover closed ring (7.4), the displacement plate (4.2) is slidably mounted in the locking box (4.1), both ends of the unlocking rod (4.3) are fixedly mounted on the displacement plate (4.2), the unlocking groove (4.4) is formed on the locking box (4.1), one end of the locking rod (4.5) is fixedly mounted on one side of the displacement plate (4.2), one end of the reset spring (4.6) is fixedly mounted on the other side of the displacement plate (4.2), the other end of the reset spring (4.6) is fixedly mounted on the inner wall of the locking box (4.1), and the limit block (4.7) is fixedly mounted on the inner wall of the locking box (4.1).

9. The centrifugal chiller with convenient maintenance according to claim 1, characterized in that: A lifting column (1.1) is fixedly arranged at the bottom of the centrifugal chiller body (1).

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