Liquid homogenizing device of dry-type evaporator and dry-type evaporator

Abstract

The liquid homogenizing device comprises an outer cylinder body, an end cover is installed at the left end of the outer cylinder body, and a liquid homogenizing box is installed on the right side of the end cover and located in the outer cylinder body. The liquid homogenizing box comprises an outer box body, a box cover, a storage cavity, a floating plate, a sliding rod and a flow distribution plate, the outer box body is installed on the right side of the end cover, the box cover is fixedly connected to the top of the outer box body, the storage cavity is formed in the bottom of the box cover, and the floating plate is connected into the storage cavity in a sleeved mode; the two sets of sliding rods are fixedly connected to the top of the floating plate and are in sliding connection with the box cover, and the flow distribution plate is fixedly connected to the right end of the bottom of the floating plate. Therefore, it is guaranteed that refrigerants are evenly distributed in each heat exchange tube, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a liquid equalizing device of a dry evaporator and a dry evaporator. Background Art

[0002] The dry evaporator is an important component in the air conditioning system. Its performance plays a key role in the energy saving and consumption reduction of the entire air conditioning system. The dry evaporator has chilled water on the shell side and refrigerant in the heat exchange tube. Through the evaporation and heat absorption principle of the refrigerant in the horizontal tube, the water outside the tube is cooled to produce low-temperature chilled water. The application of dry evaporators has been relatively mature. One of its major advantages is that it does not require a separate heat exchanger oil return design. However, the dry evaporator has a disadvantage. Due to the large number of tube bundles, after the refrigerant enters the partition box, it always flows into the heat exchange tube from the lower opening first, and then flows in from the slightly higher opening after the liquid level rises. It is difficult to evenly distribute the refrigerant in each heat exchange tube. Some heat exchange tubes have more refrigerant, and some have less refrigerant. Due to the uneven distribution of the refrigerant, a large part of the heat exchange area is not fully utilized, affecting its heat exchange efficiency. Therefore, whether the refrigerant can be evenly distributed will directly affect the performance of the heat exchanger and the utilization rate of the evaporation tube bundle;

[0003] Therefore, the utility model provides a liquid equalizing device for a dry evaporator and a dry evaporator to solve the above-mentioned problems. Utility Model Content

[0004] 1) Technical problems to be solved by the utility model

[0005] In view of the deficiencies of the prior art, the utility model designs a liquid equalizing device for a dry evaporator and a dry evaporator, which are intended to solve the technical problem of uneven distribution of refrigerant in the prior art.

[0006] 2) Technical solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A liquid equalizing device for a dry evaporator comprises an outer cylinder, an end cover is installed at the left end of the outer cylinder, and a liquid equalizing tank is installed at the right side of the end cover and inside the outer cylinder;

[0009] The liquid equalizing box includes an outer box body, a box cover, a storage cavity, a floating plate, a sliding rod and a diverter plate. The outer box body is installed on the right side of the end cover, the box cover is fixedly connected to the top of the outer box body, the storage cavity is opened at the bottom of the box cover, the floating plate is sleeved inside the storage cavity, the two groups of sliding rods are fixedly connected to the top of the floating plate and slidably connected to the box cover, and the diverter plate is fixedly connected to the right end of the bottom of the floating plate.

[0010] As a preferred solution of the utility model, the left end of the outer box body is fixedly connected with a connecting pipe, the connecting pipe passes through the left end of the end cover and is threadedly connected with a fastening nut, and a plastic gasket is sleeved on the outside of the connecting pipe and located between the outer box body and the end cover.

[0011] As a preferred solution of the utility model, a plurality of diversion sleeves are fixedly connected to the right end of the outer box body, and a plurality of through holes are opened inside the diversion plate, and the through holes are adapted for use with the plurality of diversion sleeves.

[0012] As a preferred solution of the utility model, two groups of limit bars are fixedly connected to the inner wall on the right side of the outer box body, and the diverter plate is slidably connected to the limit bars.

[0013] As a preferred solution of the utility model, sleeves are fixedly connected to the top of the box cover and the positions corresponding to the two sets of sliding rods. The sliding rods and sleeves are adapted for use, and a spring is sleeved inside the sleeve and at the top of the sliding rods.

[0014] As a preferred solution of the utility model, the diversion sleeve is divided into an inner pipe and an outer pipe, the outer pipe is fixedly connected to the right end of the inner pipe, and a sealing ring is sleeved on the inner side of the outer pipe and located at the right end of the inner pipe.

[0015] The utility model also provides a dry evaporator, comprising the liquid equalizing device of the dry evaporator described in any one of the above.

[0016] 3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model designs a liquid balancing box. During use, when the refrigerant entering the outer box body has not reached the floating plate, the diverter plate will block the refrigerant from entering the diverter sleeve. As the refrigerant continues to increase, the floating plate drives the diverter plate to rise upward under the buoyancy, and a plurality of through holes on the diverter plate gradually overlap with the pipe openings of a plurality of diverter sleeves, so that the refrigerant enters a plurality of diverter sleeves through the plurality of through holes at the same time. Under the joint action of the floating plate and the spring, the overlapping surfaces of the plurality of through holes and the plurality of diverter sleeves are automatically adjusted with the pressure of the refrigerant, thereby ensuring the uniformity of the refrigerant entering the plurality of diverter sleeves, thereby ensuring the uniform distribution of the refrigerant in each heat exchange tube and improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial cross-sectional view of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the equalizing liquid tank in the utility model;

[0021] Figure 3This is a cross-sectional view of the structure of the equalizing liquid tank in the utility model;

[0022] Figure 4 This is a cross-sectional view of the end cover structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the floating plate and the diverter plate in the utility model;

[0024] Figure 6 This is a schematic diagram of the flow dividing sleeve structure in the utility model.

[0025] In the figure: 1. outer cylinder; 2. end cover; 3. liquid equalizing box; 301. outer box; 302. box cover; 303. storage chamber; 304. floating plate; 305. sliding rod; 306. diverter plate; 4. connecting pipe; 5. fastening nut; 6. plastic gasket; 7. diverter sleeve; 8. through hole; 9. limit strip; 10. sleeve; 11. spring; 12. internal pipe; 13. external pipe; 14. sealing ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] The embodiment of the utility model provides a liquid equalizing device for a dry evaporator and a dry evaporator, the liquid equalizing device for a dry evaporator and the dry evaporator are intended to solve the technical problem of uneven distribution of refrigerant in the prior art;

[0029] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0030] A liquid equalizing device for a dry evaporator comprises an outer cylinder 1, an end cover 2 is installed at the left end of the outer cylinder 1, and a liquid equalizing tank 3 is installed on the right side of the end cover 2 and inside the outer cylinder 1;

[0031] First, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The specific structure of the liquid averaging tank 3 is as follows:

[0032] The liquid balancing box 3 includes an outer box body 301, a box cover 302, a storage chamber 303, a floating plate 304, a sliding rod 305 and a diverter plate 306. The outer box body 301 is installed on the right side of the end cover 2. The outer box body 301 is used for temporary storage of the refrigerant. The box cover 302 is fixedly connected to the top of the outer box body 301. The box cover 302 and the outer box body 301 are fixed by screws. The box cover 302 seals the outer box body 301 and can facilitate the replacement of internal parts. The storage chamber 303 is opened at the bottom of the box cover 302. The floating plate 304 is provided with a sliding rod 305 and a diverter plate 306. 04 is sleeved on the inside of the storage chamber 303, two sets of slide bars 305 are fixedly connected to the top of the floating plate 304 and are slidably connected to the box cover 302, the two sets of slide bars 305 can ensure the stability of the floating plate 304, the diverter plate 306 is fixedly connected to the right end of the bottom of the floating plate 304, during the use of the utility model, when the refrigerant is injected into the outer box body 301, as the refrigerant continues to increase, the floating plate 304 rises upward under the buoyancy, and when the floating plate 304 rises, it can drive the diverter plate 306 and the two sets of slide bars 305 to rise at the same time.

[0033] For further information, see Figure 1 , Figure 2 and Figure 3 The left end of the outer box body 301 is fixedly connected with a connecting pipe 4, the connecting pipe 4 passes through the left end of the end cover 2 and is threadedly connected with a fastening nut 5, a plastic gasket 6 is sleeved on the outside of the connecting pipe 4 and located between the outer box body 301 and the end cover 2, the left end of the connecting pipe 4 is used for an external refrigerant liquid inlet pipe, the fastening nut 5 is used for fixing the connecting pipe 4 and the end cover 2, so that the outer box body 301 is stable, and the plastic gasket 6 can protect the outer box body 301.

[0034] For further information, see Figure 2 , Figure 3 , Figure 5 and Figure 6 The right end of the outer box body 301 is fixedly connected with a plurality of diverter sleeves 7, and a plurality of through holes 8 are opened inside the diverter plate 306, and the through holes 8 are adapted for use with the plurality of diverter sleeves 7. During use of the utility model, the right end of the diverter plate 306 contacts the pipe mouth of the diverter sleeve 7, and the diverter plate 306 blocks the refrigerant from entering the diverter sleeve 7. When the diverter plate 306 rises, it drives the plurality of through holes 8 to rise. When the plurality of through holes 8 rise, they will gradually overlap with the pipe mouths of the plurality of diverter sleeves 7, so that the refrigerant enters the plurality of diverter sleeves 7 through the plurality of through holes 8.

[0035] For further information, see Figure 3 and Figure 5 Two sets of limit bars 9 are fixedly connected to the inner wall on the right side of the outer box body 301, and the diverter plate 306 is slidably connected to the limit bars 9. The two sets of limit bars 9 limit the diverter plate 306, so that the diverter plate 306 runs stably.

[0036] For further information, see Figure 1 , Figure 2 , Figure 3 and Figure 4 The top of the box cover 302 and the positions corresponding to the two sets of slide bars 305 are fixedly connected with a sleeve 10, and the slide bar 305 is adapted for use with the sleeve 10. A spring 11 is sleeved inside the sleeve 10 and at the top of the slide bar 305. During use of the utility model, the slide bar 305 slides upward under the drive of the floating plate 304, and the top of the slide bar 305 squeezes the spring 11 when sliding upward on the inner side of the sleeve 10. When the buoyancy of the floating plate 304 decreases, the spring 11 squeezes the slide bar 305 in the opposite direction, causing the slide bar 305 to slide downward, thereby driving the floating plate 304 to move downward.

[0037] For further information, see Figure 2 , Figure 3 and Figure 6 The flow dividing sleeve 7 is divided into an inner pipe 12 and an outer pipe 13. The outer pipe 13 is fixedly connected to the right end of the inner pipe 12. A sealing ring 14 is sleeved on the inner side of the outer pipe 13 and located at the right end of the inner pipe 12. The inner pipe 12 is used to ensure the circulation of the refrigerant, and the outer pipe 13 is used to connect the heat exchange tube. The sealing ring 14 can prevent the refrigerant from leaking out, so that the refrigerant flowing in from the inner pipe 12 can all flow into the heat exchange tube.

[0038] The utility model also provides a dry evaporator, comprising a liquid equalizing device of the dry evaporator, and the liquid equalizing device of the dry evaporator is the liquid equalizing device of the dry evaporator mentioned above.

[0039] The utility model workflow:

[0040] During the use of the utility model, the refrigerant enters the interior of the outer box body 301 through the connecting pipe 4, and the right end of the diverter plate 306 contacts the pipe opening of the diverter sleeve 7. The diverter plate 306 will block the refrigerant from entering the diverter sleeve 7. As the refrigerant continues to increase, the floating plate 304 rises upward under the buoyancy. When the floating plate 304 rises, it can drive the diverter plate 306 and the two sets of slide bars 305 to rise at the same time. When the diverter plate 306 rises, it will drive the plurality of through holes 8 to rise. When the plurality of through holes 8 rise, they will gradually overlap with the pipe openings of the plurality of diverter sleeves 7, so that the refrigerant passes through the plurality of The through hole 8 enters into several diverter sleeves 7 at the same time. When the slide rod 305 slides upward driven by the float plate 304, the top end of the slide rod 305 slides upward on the inner side of the sleeve 10 to squeeze the spring 11. When the refrigerant in the outer box 301 decreases, the buoyancy of the float plate 304 will decrease, and the spring 11 will reversely squeeze the slide rod 305 to make the slide rod 305 slide downward, so that the float plate 304 drives the diverter plate 306 to move downward, reducing the overlapping area between the several through holes 8 and the several diverter sleeves 7, thereby ensuring the uniformity of the refrigerant entering the several diverter sleeves 7.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid equalizing device for a dry evaporator, comprising an outer cylinder (1), characterized in that: An end cover (2) is installed at the left end of the outer cylinder (1), and a liquid equalizing box (3) is installed on the right side of the end cover (2) and inside the outer cylinder (1); The liquid equalizing box (3) comprises an outer box body (301), a box cover (302), a storage chamber (303), a floating plate (304), a sliding rod (305) and a diverter plate (306); the outer box body (301) is installed on the right side of the end cover (2); the box cover (302) is fixedly connected to the top of the outer box body (301); the storage chamber (303) is opened at the bottom of the box cover (302); the floating plate (304) is sleeved inside the storage chamber (303); two groups of sliding rods (305) are fixedly connected to the top of the floating plate (304) and slidably connected to the box cover (302); and the diverter plate (306) is fixedly connected to the right end of the bottom of the floating plate (304).

2. The liquid equalizing device of a dry evaporator according to claim 1, characterized in that: The left end of the outer box body (301) is fixedly connected to a connecting pipe (4), the connecting pipe (4) passes through the left end of the end cover (2) and is threadedly connected to a fastening nut (5), and a plastic gasket (6) is sleeved on the outside of the connecting pipe (4) and located between the outer box body (301) and the end cover (2).

3. The liquid equalizing device of a dry evaporator according to claim 1, characterized in that: A plurality of flow dividing sleeves (7) are fixedly connected to the right end of the outer box body (301), and a plurality of through holes (8) are provided inside the flow dividing plate (306), and the through holes (8) are adapted for use with the plurality of flow dividing sleeves (7).

4. The liquid equalizing device of a dry evaporator according to claim 1, characterized in that: Two groups of limit bars (9) are fixedly connected to the inner wall on the right side of the outer box body (301), and the diverter plate (306) is slidably connected to the limit bars (9).

5. The liquid equalizing device of a dry evaporator according to claim 1, characterized in that: A sleeve (10) is fixedly connected to the top of the box cover (302) and the positions corresponding to the two sets of sliding rods (305). The sliding rods (305) and the sleeve (10) are adapted for use. A spring (11) is sleeved inside the sleeve (10) and at the top of the sliding rods (305).

6. The liquid equalizing device of a dry evaporator according to claim 3, characterized in that: The flow dividing sleeve (7) is divided into an inner pipe (12) and an outer pipe (13), wherein the outer pipe (13) is fixedly connected to the right end of the inner pipe (12), and a sealing ring (14) is sleeved on the inner side of the outer pipe (13) and located at the right end of the inner pipe (12).

7. A dry evaporator, characterized in that: A liquid equalizing device comprising the dry evaporator according to any one of claims 1 to 6.

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