Air conditioner refrigeration drying filter
By setting a partition cylinder and an inner cylinder in the middle of the inner side of the drying cylinder of the drying filter and filling the sub-sieve therein, the problems of low utilization and large resistance caused by uneven filling of the molecular sieve are solved, and a higher utilization rate of molecular sieve and lower resistance are achieved.
Patent Information
- Application Number
- CN202421406069.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-06-19
AI Technical Summary
In the existing drying filter, the filling method of molecular sieve causes one end to absorb water and powder first, reduce the overall utilization rate, and increase the resistance in the drying cylinder, affecting the passage of refrigerant.
An air-conditioning refrigeration and drying filter is designed. By setting a partition cylinder and an inner cylinder in the middle of the inner side of the drying cylinder, and filling a sub-sieve between the partition cylinder and the inner cylinder, the liquefied refrigerant is fully surrounded from the outside of the partition cylinder and enters the molecular sieve, increasing the permeability contact area and improving the utilization rate of the molecular sieve.
By limiting the molecular sieve between the separator and the inner cylinder, the utilization rate of the molecular sieve is increased, the saturation thickness is reduced, the resistance in the drying cylinder is reduced, and the convenience of passing the refrigerant is improved.
Smart Images
Figure CN222865270U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drying filters, and in particular relates to an air-conditioning refrigeration drying filter. Background Art
[0002] After the refrigerant is liquefied through the condenser, it needs to pass through a drying filter to dry and filter impurities. The current drying filter is generally an integrated setting. Capillaries are connected to the two ends of the drying cylinder, and a molecular sieve is filled in the middle of the inner side of the drying cylinder. Filters are set on both sides of the molecular sieve. The liquefied refrigerant enters the drying cylinder through the inlet capillary, passes through the filter to filter impurities, then absorbs water through the molecular sieve, and then passes through the filter at the other end to filter the molecular sieve and residual impurities, and finally is discharged through the outlet capillary. However, the current filling method of the molecular sieve is to fill the inner cavity of the drying cylinder. When the refrigerant passes through the molecular sieve, the molecular sieve at one end will absorb water first, and the molecular sieve at the other end will absorb less water. This will cause one end of the molecular sieve to be saturated with water and powdered first, which will reduce the overall utilization rate of the molecular sieve. In addition, since the cross-sectional area of the drying cylinder is relatively small, as the saturated thickness of the molecular sieve increases, it is easy to cause the resistance in the drying cylinder to increase, which is not conducive to the passage of the liquefied refrigerant. Utility Model Content
[0003] In view of the above problems, the purpose of the utility model is to provide an air-conditioning refrigeration drying filter to solve the problem that the current method of filling the molecular sieve is to fill the inner cavity of the drying cylinder. When the refrigerant passes through the molecular sieve, the molecular sieve at one end will absorb water first, and the molecular sieve at the other end will absorb less water. This will cause one end of the molecular sieve to be saturated with water and powdered first, and the overall utilization rate of the molecular sieve will be reduced. In addition, since the cross-sectional area of the drying cylinder is relatively small, as the saturated thickness of the molecular sieve increases, it is easy to cause the resistance in the drying cylinder to increase, which is not conducive to the passage of liquefied refrigerant.
[0004] To achieve the above objectives, the utility model adopts the following technical solution: an air conditioning refrigeration drying filter, comprising a drying cylinder, wherein both sides of the drying cylinder are connected with an outlet capillary and an inlet capillary, a separation cylinder is provided in the middle of the inner side of the drying cylinder, a gap is provided between the separation cylinder and the inner side wall of the drying cylinder, filter screens are provided at both ends of the separation cylinder, the two sides of the separation cylinder are closed, an inner cylinder is provided at the inner center of the separation cylinder, fine holes are provided through the outer circumferences of the separation cylinder and the inner cylinder, one end of the inner cylinder close to the inlet capillary is integrally and sealedly connected with the filter screen, one end of the inner cylinder close to the outlet capillary passes through the separation cylinder and is connected with the filter screen, and a molecular sieve is filled between the separation cylinder and the inner cylinder.
[0005] The beneficial effects of the utility model are as follows: compared with the case where the molecular sieve is filled inside the drying cylinder, the molecular sieve is confined between the separation cylinder and the inner cylinder, a gap is set between the separation cylinder and the drying cylinder, and the liquefied refrigerant enters the molecular sieve from the outside of the separation cylinder through full enclosure, the permeation contact area between the refrigerant and the molecular sieve will be greatly increased, and the more the refrigerant penetrates into the inner cylinder, the smaller the permeation contact area will be, which means that the outer layer utilization area of the molecular sieve is large, the utilization rate of the molecular sieve will be greatly improved for the same water absorption saturation thickness, the saturation thickness of the molecular sieve will be greatly reduced for the same water absorption amount, the resistance will be lower, and it will be more convenient for the refrigerant to pass through.
[0006] In order to facilitate regular cleaning and replacement of the filter;
[0007] As a further improvement of the above technical solution: the drying cylinder includes a cylinder body, a cylinder cover and a connecting ring, the cylinder cover and the connecting ring are fixedly connected, the connecting ring and the cylinder body are threadedly connected, the cylinder cover and the outlet capillary are connected, the cylinder body and the inlet capillary are connected, and a filter screen is arranged on the inner side of the connecting ring.
[0008] The beneficial effect of this improvement is that the connecting ring is driven by the cylinder cover and screwed out of the cylinder body, so that the filter screen inside the drying cylinder can be cleaned and replaced regularly to maintain the filtering effect of the filter screen.
[0009] In order to increase the sealing performance of the connection between the cylinder cover and the cylinder body;
[0010] As a further improvement of the above technical solution: a sealing ring is sleeved on the outer side of the connecting ring, and the sealing ring is arranged between the cylinder body and the cylinder cover.
[0011] The beneficial effect of this improvement is that a sealing ring is provided on the outer sleeve of the connecting ring to increase the sealing performance of the connection between the cylinder cover and the cylinder body.
[0012] In order to facilitate the replacement of the molecular sieve in the separation cylinder;
[0013] As a further improvement of the above technical solution: a rubber pad is provided on the inner side of the connecting ring close to the separating tube, the side of the separating tube close to the rubber pad is open, the separating tube and the rubber pad are tightly crimped, and the inner tube passes through the rubber pad and is connected to the inner side of the connecting ring.
[0014] The beneficial effect of this improvement is that the rubber pad is crimped to the separation tube and is used to close the opening of the separation tube when in use. When disassembling, it is easy to open the separation tube and replace the molecular sieve in the separation tube.
[0015] In order to increase the thermal insulation effect of the cylinder;
[0016] As a further improvement of the above technical solution: the inner layer of the cylinder is a hollow cavity.
[0017] The beneficial effect of this improvement is that the inner layer of the cylinder is a hollow cavity, which increases the heat preservation effect of the cylinder.
[0018] In order to confirm the filtering effect of molecular sieve;
[0019] As a further improvement of the above technical solution: a glass tube is sealed on the lower side of the cylinder, and the upper side of the glass tube is connected to the inner side of the cylinder.
[0020] The beneficial effect of this improvement is that when the molecular sieve is saturated with water and the drying effect of the molecular sieve is poor or disappears, part of the water in the outermost layer of the molecular sieve will reversely seep out and gather on the inner side of the glass tube. By observing the inner side of the glass tube, it is easy to confirm the filtering effect of the molecular sieve, thereby judging whether the molecular sieve needs to be replaced.
[0021] To block powder particles;
[0022] As a further improvement of the above technical solution: a fine screen is provided at the upper end of the glass tube.
[0023] The beneficial effect of this improvement is that when the molecular sieve is used for a long time, the outer layer of the molecular sieve will be pulverized, and some of the pulverized particles will seep into the gap between the separation cylinder and the cylinder body. A fine screen is provided to block the pulverized particles.
[0024] In order to seal the passages of the outlet capillary and the inlet capillary;
[0025] As a further improvement of the above technical solution: a control valve is provided on the side of the outlet capillary and the inlet capillary that are away from each other.
[0026] The beneficial effect of this improvement is that a control valve is provided to close the passages of the outlet capillary tube and the inlet capillary tube when the drying cylinder is disassembled.
[0027] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a side sectional view of the structure of the utility model;
[0029] Figure 2 It is a schematic diagram of the structure of the utility model;
[0030] Figure 3 This is a schematic diagram of the connection structure of the partition cylinder in the utility model;
[0031] Figure 4 It is a side sectional view of the connection structure of the partition cylinder in the utility model;
[0032] In the figure: 1. drying cylinder; 101. cylinder body; 102. cylinder cover; 103. connecting ring; 104. sealing ring; 105. rubber pad; 2. outlet capillary; 3. inlet capillary; 4. separation cylinder; 5. filter screen; 6. inner cylinder; 7. molecular sieve; 8. control valve; 9. glass tube; 10. fine screen. DETAILED DESCRIPTION
[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.
[0034] like Figure 1 — Figure 4As shown: an air conditioning refrigeration drying filter, comprising a drying cylinder 1, wherein both sides of the drying cylinder 1 are connected with an outlet capillary 2 and an inlet capillary 3, a separation cylinder 4 is provided in the middle of the inner side of the drying cylinder 1, a gap is formed between the separation cylinder 4 and the inner side wall of the drying cylinder 1, and filter screens 5 are provided at both ends of the separation cylinder 4, the two sides of the separation cylinder 4 are closed, an inner cylinder 6 is provided at the inner center of the separation cylinder 4, and fine holes are provided through the outer peripheries of the separation cylinder 4 and the inner cylinder 6, one end of the inner cylinder 6 close to the inlet capillary 3 is integrally sealed and connected with the filter screen 5, one end of the inner cylinder 6 close to the outlet capillary 2 passes through the separation cylinder 4 and is connected with the filter screen 5, and a molecular sieve 7 is filled between the separation cylinder 4 and the inner cylinder 6. Compared with the molecular sieve 7 The inner side of the drying cylinder 1 is filled and the molecular sieve 7 is confined between the separation cylinder 4 and the inner cylinder 6. A gap is set between the separation cylinder 4 and the drying cylinder 1. The liquefied refrigerant is completely surrounded from the outside of the separation cylinder 4 and enters the molecular sieve 7. The permeation contact area between the refrigerant and the molecular sieve 7 will be greatly increased, and the more the refrigerant penetrates into the inner cylinder 6, the smaller the permeation contact area will be, which means that the outer layer of the molecular sieve has a large utilization area. With the same water absorption saturation thickness, the utilization rate of the molecular sieve will be greatly improved. With the same water absorption, the saturation thickness of the molecular sieve will be greatly reduced, the resistance will be lower, and it will be easier for the refrigerant to pass through. The drying cylinder 1 includes a cylinder body 101, a cylinder cover 102 and a connecting ring 103. The cylinder cover 102 and the connecting ring 103 are fixedly connected, and the connecting ring 103 and the cylinder body 101 are threadedly connected. The cylinder cover 102 is connected to the outlet capillary 2, and the cylinder body 101 is connected to the inlet capillary 3. The inner side of the connecting ring 103 is provided with a filter screen 5. The connecting ring 103 is driven by the cylinder cover 102 to be screwed out from the cylinder body 101, so as to facilitate regular cleaning and replacement of the filter screen 5 inside the drying cylinder 1 to maintain the filtering effect of the filter screen 5. The outer side of the connecting ring 103 is provided with a sealing ring 104, and the sealing ring 104 is arranged between the cylinder body 101 and the cylinder cover 102. The outer side of the connecting ring 103 is provided with a sealing ring 104 for increasing the sealing performance of the connection between the cylinder cover 102 and the cylinder body 101. A rubber pad 105 is provided on the inner side of the connecting ring 103 close to the separating cylinder 4. The separating cylinder 4 close to the rubber pad 105 is provided on the inner side of the connecting ring 103. One side of 05 is open, the separation cylinder 4 is tightly pressed against the rubber pad 105, the inner cylinder 6 passes through the rubber pad 105 and is connected to the inner side of the connecting ring 103, the rubber pad 105 is pressed against the separation cylinder 4, and is used to close the opening of the separation cylinder 4 when in use, and is convenient to open the separation cylinder 4 during disassembly to replace the molecular sieve 7 in the separation cylinder 4, the inner layer of the cylinder 101 is a hollow cavity, the inner layer of the cylinder 101 is a hollow cavity, which increases the thermal insulation effect of the cylinder 101, the lower side of the cylinder 101 is sealed with a glass tube 9, the upper side of the glass tube 9 is connected to the inner side of the cylinder 101, when the molecular sieve 7 is saturated with water, the drying effect of the molecular sieve 7 is poor or disappears, the water in the outermost layer of the molecular sieve 7 will partially reversely seep out and gather on the inner side of the glass tube 9,By observing the inside of the glass tube 9, it is convenient to confirm the filtering effect of the molecular sieve 7, so as to judge whether the molecular sieve 7 needs to be replaced. A fine screen 10 is provided at the upper end of the glass tube 9. When the molecular sieve 7 is used for a long time, the outer molecular sieve will be powdered, and some of the powdered particles will seep into the gap between the separation cylinder 4 and the cylinder body 101. The fine screen 10 is provided to block the powdered particles. The outlet capillary 2 and the inlet capillary 3 are both provided with a control valve 8 on the side away from each other. The control valve 8 is provided to close the passage of the outlet capillary 2 and the inlet capillary 3 when the drying cylinder 1 is disassembled.
[0035] The working principle and use process of this utility model:
[0036] When in use, the condenser is connected through the inlet capillary 3, and the liquefied refrigerant enters the drying cylinder 1 from the condenser through the inlet capillary 3, first passes through the filter screen 5, and after filtering impurities through the filter screen 5, the liquefied refrigerant enters the gap between the separation cylinder 4 and the drying cylinder 1. After the liquefied refrigerant fills the gap, it penetrates into the inner side of the separation cylinder 4 through the pores surrounding it, and after absorbing water through the molecular sieve 7, it penetrates into the inner cylinder 6 through the pores, and then is discharged from the opening of the inner cylinder 6. After being filtered through the filter screen 5 again, it is discharged from the outlet capillary 2 to the expansion valve. Compared with the molecular sieve 7 filling the inner side of the drying cylinder 1, the molecular sieve 7 is confined between the separation cylinder 4 and the inner cylinder 6. A gap is set between the partition cylinder 4 and the drying cylinder 1, and the liquefied refrigerant enters the molecular sieve 7 from the outside of the partition cylinder 4. The permeation contact area between the refrigerant and the molecular sieve 7 will be greatly increased, and the more the refrigerant penetrates into the inner cylinder 6, the smaller the permeation contact area will be, which means that the outer layer of the molecular sieve has a large utilization area, and the utilization rate of the molecular sieve will be greatly improved for the same water absorption saturation thickness. The saturation thickness of the molecular sieve will also be greatly reduced for the same water absorption amount, and the resistance will be lower, making it easier for the refrigerant to pass through. In addition, when in use, the connecting ring 103 is driven by the cylinder cover 102 and screwed out from the cylinder body 101, so as to facilitate the regular cleaning and replacement of the filter screen 5 on the inside of the drying cylinder 1 to keep the filter screen 5 clean. In order to improve the filtering effect, a sealing ring 104 is provided on the outer side of the connecting ring 103 to increase the sealing performance of the connection between the cylinder cover 102 and the cylinder body 101. In addition, a rubber pad 105 is provided on the inner side of the connecting ring 103 close to the separating cylinder 4. The side of the separating cylinder 4 close to the rubber pad 105 is an opening. The separating cylinder 4 is tightly crimped with the rubber pad 105. The inner cylinder 6 passes through the rubber pad 105 and is connected with the inner side of the connecting ring 103. The rubber pad 105 is crimped with the separating cylinder 4 to close the opening of the separating cylinder 4 when in use. When disassembling, it is convenient to open the separating cylinder 4 and replace the molecular sieve 7 in the separating cylinder 4. The inner layer of the cylinder body 101 is a hollow cavity to increase the sealing performance of the cylinder body 101. For the heat preservation effect, a glass tube 9 is provided. When the molecular sieve 7 is saturated with water and the drying effect of the molecular sieve 7 is poor or disappears, part of the water in the outermost layer of the molecular sieve 7 will reversely seep out and gather on the inner side of the glass tube 9. By observing the inner side of the glass tube 9, it is convenient to confirm the filtering effect of the molecular sieve 7, so as to judge whether the molecular sieve 7 needs to be replaced. When the molecular sieve 7 is used for a long time, the outer layer of the molecular sieve will be powdered, and part of the powdered particles will seep into the gap between the partition cylinder 4 and the cylinder body 101. A fine screen 10 is provided to block the powdered particles. A control valve 8 is provided to close the passages of the outlet capillary 2 and the inlet capillary 3 when the drying cylinder 1 is disassembled.
[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0038] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.
Claims
1. An air conditioning refrigeration filter drier, characterized in that: The invention comprises a drying cylinder (1), wherein both sides of the drying cylinder (1) are connected with an outlet capillary (2) and an inlet capillary (3), a separator cylinder (4) is arranged in the middle of the inner side of the drying cylinder (1), a gap is formed between the separator cylinder (4) and the inner side wall of the drying cylinder (1), filters (5) are arranged at both ends of the separator cylinder (4), the two sides of the separator cylinder (4) are closed, an inner cylinder (6) is arranged at the inner center of the separator cylinder (4), fine holes are formed through the outer peripheries of the separator cylinder (4) and the inner cylinder (6), one end of the inner cylinder (6) close to the inlet capillary (3) is integrally sealed and connected with the filter (5), one end of the inner cylinder (6) close to the outlet capillary (2) passes through the separator cylinder (4) and is connected with the filter (5), and a molecular sieve (7) is filled between the separator cylinder (4) and the inner cylinder (6).
2. The air conditioning refrigeration filter-dryer according to claim 1, characterized in that: The drying cylinder (1) comprises a cylinder body (101), a cylinder cover (102) and a connecting ring (103); the cylinder cover (102) and the connecting ring (103) are fixedly connected; the connecting ring (103) and the cylinder body (101) are threadedly connected; the cylinder cover (102) and the outlet capillary (2) are connected; the cylinder body (101) and the inlet capillary (3) are connected; and a filter screen (5) is arranged on the inner side of the connecting ring (103).
3. The air conditioning refrigeration filter-dryer according to claim 2, characterized in that: A sealing ring (104) is sleeved on the outer side of the connecting ring (103), and the sealing ring (104) is arranged between the cylinder body (101) and the cylinder cover (102).
4. The air conditioning refrigeration filter-dryer according to claim 2, characterized in that: A rubber pad (105) is provided on the inner side of the connecting ring (103) close to the separating tube (4); the side of the separating tube (4) close to the rubber pad (105) is open; the separating tube (4) and the rubber pad (105) are tightly crimped; and the inner tube (6) passes through the rubber pad (105) and is connected to the inner side of the connecting ring (103).
5. The air conditioning refrigeration filter-dryer according to claim 2, characterized in that: The inner layer of the cylinder (101) is a hollow cavity.
6. The air conditioning refrigeration filter-dryer according to claim 2, characterized in that: A glass tube (9) is sealed on the lower side of the cylinder (101), and the upper side of the glass tube (9) is connected to the inner side of the cylinder (101).
7. The air conditioning refrigeration filter-dryer according to claim 6, characterized in that: A fine mesh (10) is provided at the upper end of the glass tube (9).
8. The air conditioning refrigeration filter-dryer according to claim 1, characterized in that: A control valve (8) is provided on the side of the outlet capillary (2) and the side of the inlet capillary (3) that are away from each other.