Heat exchange device for water chilling unit

Abstract

The heat exchange device for the water chilling unit comprises a heat exchanger and a shell fixed to the top of the heat exchanger, two partition plates are fixedly connected in the shell, the opposite sides of the two partition plates are fixedly connected with liquid inlet pipes used for adding water, one ends of the liquid inlet pipes extend out of the shell, and the other ends of the liquid inlet pipes are fixedly connected with liquid outlet pipes. A heat exchanger is arranged in the shell, connecting pipes are fixedly connected to the two sides of the shell and communicate with the heat exchanger, a cover plate is arranged at the top of the shell, two connecting frames are fixedly connected to the bottom of the cover plate, and a first filter plate and a second filter plate are arranged in each connecting frame. According to the heat exchange device, impurities can be prevented from adhering to the inner wall of the heat exchanger, the use effect of the heat exchange device is improved, the first filter plate and the second filter plate can be conveniently detached, time is saved, leakage between the shell and the cover plate can be prevented, and the use sealing performance of the heat exchange device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chillers, in particular to a heat exchange device for a chiller unit. Background Art

[0002] A chiller is a machine that achieves a refrigeration effect through a vapor compression or absorption cycle. During the operation of a chiller unit, the chiller unit transfers the heat of the high-temperature gaseous refrigerant to the cooling water through a condenser. The cooling water system will absorb a large amount of heat, resulting in an increase in the water temperature of the cooling water. In conventional designs, this part of the heat is directly discharged after being exchanged with the air through a cooling tower. The heat in the cooling water is waste heat, and a heat exchange device is also used in the chiller unit to recover this part of the heat.

[0003] Due to the presence of some impurities in the liquid, during the long-term use of the heat exchange device, these impurities will adhere to the inner wall of the heat exchange device, thus greatly affecting the working efficiency of the heat exchange device. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a heat exchange device for a chiller unit is proposed.

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

[0006] A heat exchange device for a chiller unit includes a heat exchanger and a housing fixed on the top of the heat exchanger. Two partition plates are fixedly connected inside the housing. On one side of the two partition plates facing each other, a liquid inlet pipe for adding water is fixedly connected, and one end of the liquid inlet pipe extends out of the housing. Connecting pipes are fixedly connected to both sides of the housing, and the connecting pipes are communicated with the heat exchanger. A cover plate is provided on the top of the housing. Two connecting frames are fixedly connected to the bottom of the cover plate. A first filter plate and a second filter plate are provided in each of the two connecting frames. Locking components for fixing the cover plate are provided on the outer walls of both sides of the housing, and a limiting component for positioning the first filter plate and the second filter plate is provided on the inner wall of the bottom of the housing.

[0007] As a further scheme of the utility model, the locking component includes two fixing blocks, which are respectively fixedly connected to the outer walls of both sides of the housing. A sliding groove is opened at the top of each of the two fixing blocks. Convex blocks are fixedly connected to the positions on both sides of the bottom of the cover plate, and the convex blocks are inserted into the sliding grooves. Bevels are provided on both sides of the convex blocks. Two sliding frames for squeezing the convex blocks are slidably connected in the sliding grooves, and a driving component for moving the sliding frames is provided in the sliding grooves.

[0008] As a further solution of the present utility model, the driving component is a bidirectional threaded rod, the bidirectional threaded rod is rotatably connected in the sliding groove, and the bidirectional threaded rod passes through the two sliding brackets and is threadedly connected to the two sliding brackets.

[0009] As a further solution of the present utility model, both ends of the bidirectional threaded rod pass through the fixing block and are fixedly connected with knobs.

[0010] As a further solution of the present utility model, the limiting component is two groups of positioning brackets, both groups of positioning brackets are fixedly connected to the bottom of the housing, the number of both groups of positioning brackets is two, and the adjacent first filter plate and second filter plate are respectively inserted into the adjacent two positioning brackets.

[0011] As a further solution of the present utility model, the two groups of positioning brackets are respectively located on one side of the two partitions in opposite directions, and the connecting frame is located between the adjacent two positioning brackets.

[0012] As a further solution of the present utility model, a groove is formed at the bottom of the cover plate, and the housing is snapped into the groove to position the cover plate, and both connecting frames are located in the groove.

[0013] As a further solution of the present utility model, a sealing ring is fixedly connected to the top of the housing.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By the combined use of the first filter plate and the second filter plate, after water enters the housing through the liquid inlet pipe, the first filter plate and the second filter plate will filter the water, so that the impurities contained in the water can be filtered out, thereby avoiding the adhesion of impurities on the inner wall of the heat exchanger and improving the use effect of the heat exchange device.

[0016] 2. Through the arrangement of the connecting frame, the first filter plate and the second filter plate are placed in the connecting frame, and the first filter plate and the second filter plate are limited by the limiting component, so that the first filter plate and the second filter plate can be taken out after the cover plate is removed, which is convenient for disassembling the first filter plate and the second filter plate and saves time.

[0017] 3. Through the arrangement of the sealing ring, the sealing ring can seal the gap between the cover plate and the housing, thereby preventing leakage between the housing and the cover plate and improving the sealing performance of the heat exchange device during use. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the heat exchange device for a water chiller proposed by the present utility model;

[0019] Figure 2Schematic cross-sectional structure diagram of the fixing block of the heat exchange device for a water chiller proposed by the present utility model;

[0020] Figure 3 Schematic cross-sectional structure diagram of the housing of the heat exchange device for a water chiller proposed by the present utility model;

[0021] Figure 4 Schematic enlarged structure diagram of the cover plate of the heat exchange device for a water chiller proposed by the present utility model.

[0022] In the figure: 1. Cover plate; 2. Housing; 3. Heat exchanger; 4. Connecting pipe; 5. Fixing block; 6. Chute; 7. Slide carriage; 8. Bidirectional threaded rod; 9. Convex block; 10. Inclined plane; 11. Sealing ring; 12. Liquid inlet pipe; 13. Positioning frame; 14. Connecting frame; 15. First filter plate; 16. Second filter plate; 17. Partition board; 18. Groove. Specific embodiments

[0023] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. For the embodiments of this application described here, based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0024] Referring to Figures 1-4 , the heat exchange device for a water chiller includes a heat exchanger 3 and a housing 2 fixed on the top of the heat exchanger 3. Two partition boards 17 are fixed in the housing 2 by bolts. Liquid inlet pipes 12 for adding water are fixed on one side of the two partition boards 17 facing each other by bolts, and one end of each liquid inlet pipe 12 extends out of the housing 2. Connecting pipes 4 are welded on both sides of the housing 2, and the connecting pipes 4 are communicated with the heat exchanger 3.

[0025] A cover plate 1 is arranged on the top of the housing 2. Two connecting frames 14 are welded on the bottom of the cover plate 1. A first filter plate 15 and a second filter plate 16 are arranged in each of the two connecting frames 14. Locking components for fixing the cover plate 1 are arranged on the outer walls of both sides of the housing 2. Limiting components for positioning the first filter plate 15 and the second filter plate 16 are arranged on the inner bottom wall of the housing 2. Hot water and cold water are respectively added into the housing 2 through the two liquid inlet pipes 12, so that the hot water and cold water respectively enter the spaces separated by the two partition boards 17. At this time, the first filter plate 15 and the second filter plate 16 will filter the water entering the housing 2, thereby filtering out the impurities contained in the water. The filtered water will enter the heat exchanger 3 through the connecting pipe 4 for heat exchange. Since the impurities in the water are filtered out by the first filter plate 15 and the second filter plate 16, the adhesion of impurities on the inner wall of the heat exchanger 3 can be avoided.

[0026] In the present utility model, the locking assembly includes two fixing blocks 5 which are respectively welded to the outer walls on both sides of the housing 2. Chutes 6 are provided at the tops of the two fixing blocks 5. Protrusions 9 are welded to the bottom of the cover plate 1 at both side positions. The protrusions 9 are inserted into the chutes 6. Bevels 10 are provided on both sides of the protrusions 9. Two sliding frames 7 that squeeze the protrusions 9 are slidably connected in the chutes 6. A driving component for moving the sliding frames 7 is provided in the chutes 6. The driving component is a bidirectional threaded rod 8. The bidirectional threaded rod 8 is rotatably connected in the chutes 6. The bidirectional threaded rod 8 passes through the two sliding frames 7 and is threadedly connected to the two sliding frames 7. Knobs are welded to both ends of the bidirectional threaded rod 8 after passing through the fixing blocks 5. When it is necessary to take out the first filter plate 15 and the second filter plate 16, rotate the bidirectional threaded rod 8. The bidirectional threaded rod 8 will drive the two sliding frames 7 to move in opposite directions along the chutes 6, so that the sliding frames 7 no longer squeeze the protrusions 9. At this time, the cover plate 1 can be removed from the housing 2. The cover plate 1 will drive the connecting frame 14 to move, and the connecting frame 14 will drive the first filter plate 15 and the second filter plate 16 to move, so as to take out the first filter plate 15 and the second filter plate 16 from the housing 2;

[0027] In particular, the limiting component is two groups of positioning frames 13. The two groups of positioning frames 13 are both welded to the bottom of the housing 2. The number of the two groups of positioning frames 13 is two. The adjacent first filter plate 15 and the second filter plate 16 are respectively inserted into the adjacent two positioning frames 13. The two groups of positioning frames 13 are respectively located on one side of the two partitions 17 in opposite directions. The connecting frame 14 is located between the adjacent two positioning frames 13. When inserting the first filter plate 15 and the second filter plate 16 into the housing 2, insert the first filter plate 15 and the second filter plate 16 between the adjacent two positioning frames 13, so as to limit the first filter plate 15 and the second filter plate 16 and prevent the first filter plate 15 and the second filter plate 16 from moving. A groove 18 is provided at the bottom of the cover plate 1. The housing 2 is snapped into the groove 18 to position the cover plate 1. The two connecting frames 14 are both located in the groove 18. A sealing ring 11 is bonded to the top of the housing 2. The sealing ring 11 can seal the gap between the housing 2 and the cover plate 1.

[0028] Working principle: When in use, hot water and cold water are respectively added into the housing 2 through two liquid inlet pipes 12, so that the hot water and cold water enter the spaces separated by two partition plates 17 respectively. At this time, the first filter plate 15 and the second filter plate 16 will filter the water entering the housing 2, thereby filtering out the impurities contained in the water. The filtered water will enter the heat exchanger 3 through the connecting pipe 4 for heat exchange. Since the impurities in the water are filtered out by the first filter plate 15 and the second filter plate 16, it is possible to avoid the adhesion of impurities on the inner wall of the heat exchanger 3, improving the use effect of the heat exchange device. When it is necessary to take out the first filter plate 15 and the second filter plate 16, rotate the bidirectional threaded rod 8, and the bidirectional threaded rod 8 will drive two sliding frames 7 to move in opposite directions along the sliding grooves 6, so that the sliding frames 7 no longer squeeze the convex blocks 9. At this time, the cover plate 1 can be removed from the housing 2. The cover plate 1 will drive the connecting frame 14 to move, and the connecting frame 14 will drive the first filter plate 15 and the second filter plate 16 to move, so as to take out the first filter plate 15 and the second filter plate 16 from the housing 2.

[0029] The present utility model has been described through the above embodiments. Those skilled in the art can understand that the present utility model is not limited to the above embodiments, and more modifications can be made according to the teachings of the present utility model. These modifications all fall within the scope of protection required by the present utility model. The scope of protection of the present utility model is defined by the appended claims and their equivalent scope.

Claims

1. A heat exchange device for a chiller, comprising a heat exchanger (3) and a shell (2) fixed on the top of the heat exchanger (3), characterized in that: Two partitions (17) are fixedly connected inside the shell (2), and a liquid inlet pipe (12) for adding water is fixedly connected to opposite sides of the two partitions (17), and one end of the liquid inlet pipe (12) extends outside the shell (2). Connecting pipes (4) are fixedly connected to both sides of the shell (2), and the connecting pipes (4) are connected to the heat exchanger (3). A cover plate (1) is provided on the top of the shell (2), and two connecting frames (14) are fixedly connected to the bottom of the cover plate (1). A first filter plate (15) and a second filter plate (16) are provided in the two connecting frames (14). Locking components for fixing the cover plate (1) are provided on the outer walls of both sides of the shell (2), and a limiting component for positioning the first filter plate (15) and the second filter plate (16) is provided on the inner wall of the bottom of the shell (2).

2. The heat exchange device for a chiller according to claim 1, characterized in that: The locking assembly comprises two fixed blocks (5), the two fixed blocks (5) are respectively fixedly connected to the outer walls on both sides of the shell (2), the tops of the two fixed blocks (5) are provided with sliding grooves (6), the bottom of the cover plate (1) is located on both sides and is fixedly connected with protrusions (9), and the protrusions (9) are inserted into the sliding grooves (6), and both sides of the protrusions (9) are provided with inclined surfaces (10), and two slides (7) for squeezing the protrusions (9) are slidably connected in the sliding grooves (6), and a driving component for moving the slides (7) is provided in the sliding grooves (6).

3. The heat exchange device for a chiller according to claim 2, characterized in that: The driving component is a bidirectional threaded rod (8), the bidirectional threaded rod (8) is rotatably connected in the slide groove (6), and the bidirectional threaded rod (8) passes through two slides (7) and is threadedly connected to the two slides (7).

4. The heat exchange device for a chiller according to claim 3, characterized in that: Both ends of the bidirectional threaded rod (8) pass through the fixing block (5) and are fixedly connected with knobs.

5. The heat exchange device for a chiller according to claim 1, characterized in that: The limiting components are two groups of positioning frames (13), both groups of the positioning frames (13) are fixedly connected to the bottom of the shell (2), the number of the two groups of the positioning frames (13) is two, and the adjacent first filter plate (15) and the second filter plate (16) are inserted into the two adjacent positioning frames (13).

6. The heat exchange device for a chiller according to claim 5, characterized in that: The two groups of positioning frames (13) are respectively located on one side of the two partitions (17) in opposite directions, and the connecting frame (14) is located between two adjacent positioning frames (13).

7. The heat exchange device for a chiller according to claim 1, characterized in that: The bottom of the cover plate (1) is provided with a groove (18), and the shell (2) is inserted into the groove (18) so that the cover plate (1) is positioned, and the two connecting frames (14) are both located in the groove (18).

8. The heat exchange device for a chiller according to claim 7, characterized in that: A sealing ring (11) is fixedly connected to the top of the housing (2).

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