Filtering device for refrigerant production

Abstract

The utility model discloses a filter device for refrigerant production, which comprises a vertically arranged filter pipe, a filter screen is arranged in the filter pipe, the center position of the upper surface of the filter screen is arched upwards to form a diversion arch surface, the inner wall of the filter pipe is fixedly connected with a diversion ring along the circumferential direction, and the diversion ring is fixedly connected with the filter pipe. The flow guide ring is located above the filter screen, an inner hole of the flow guide ring is aligned with the center position of the flow guide arch face, and a flow guide inclined face is arranged on the upper surface of the flow guide ring. By arranging the arched filter screen, impurity particles can flow towards the edge position of the filter screen along the flow guide arched surface, so that the middle position of the filter screen can be kept through, the risk that the impurity particles are accumulated on the surface of the filter screen is reduced, the flowing speed of a refrigerant can be ensured, and the risk that the filter screen is blocked can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of refrigerant production, in particular to a filtering device for refrigerant production. Background Art

[0002] Refrigerant, commonly known as refrigerant, is a working fluid used in refrigeration and air conditioning systems to transfer heat energy and produce a cooling effect. It is widely used in steam engines, automotive air conditioners, and refrigerators. During the refrigerant production or recycling process, particulate impurities may be present in the refrigerant, necessitating the use of filtration equipment to filter the refrigerant.

[0003] The filtering device in the related technology usually includes a filter tube with a filter mesh provided inside the filter tube. One end of the filter tube is connected to the refrigerant delivery pipe and the other end is connected to the refrigerant recovery pipe. When the refrigerant flows through the filter tube, the filter mesh can block the impurity particles in the refrigerant, thereby achieving refrigerant filtration.

[0004] However, after long-term use, foreign particles may accumulate on the surface of the filter screen in the filter device of the related art, thereby affecting the flow rate of the refrigerant and further affecting the working time, which needs to be improved. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a filtering device for refrigerant production, which can reduce the risk of impurity particles accumulating on the surface of the filter screen, ensure the flow speed of the refrigerant, and thus improve working efficiency.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions: a filtering device for refrigerant production, comprising a vertically arranged filter tube, a filter screen is arranged in the filter tube, the center position of the upper surface of the filter screen is arched upward to form a guide arch surface, the inner wall of the filter tube is fixedly connected to a guide ring along its circumference, the guide ring is located above the filter screen, the inner hole of the guide ring is aligned with the center position of the guide arch surface, and the upper surface of the guide ring is provided with a guide slope.

[0007] In a preferred example, the present invention can be further configured as follows: a storage ring groove is provided on the inner wall of the filter tube along its circumference, and the bottom inner wall of the storage ring groove is tangent to the guide arch surface, so that the impurity particles on the guide arch surface can smoothly enter the storage ring groove.

[0008] In a preferred example, the present invention can be further configured as follows: a filter disc is provided in the filter tube, the filter disc is located below the filter screen, and the inner diameter of the filter holes on the filter disc is smaller than the inner diameter of the filter holes on the filter screen.

[0009] In a preferred example, the present invention can be further configured as follows: the filter disc is detachably connected to the filter tube, and the filter disc can be taken out from the bottom port of the filter tube.

[0010] In a preferred example, the present invention can be further configured as follows: the inner wall of the filter tube is fixedly connected to a limiting ring, the upper surface of the filter disc abuts against the lower surface of the limiting ring, and the edge position of the filter disc is connected to the limiting ring by a plurality of fastening screws.

[0011] In a preferred example, the present invention can be further configured as follows: flanges are respectively provided at the upper and lower ends of the filter tube for connection with external pipelines.

[0012] In a preferred example, the present invention can be further configured as follows: the filtering device also includes a support frame, the support frame is provided with pneumatic clamps for clamping and fixing the filter tube, and self-locking casters are respectively provided at the four corners of the bottom of the support frame.

[0013] In summary, the present invention has the following beneficial effects:

[0014] 1. By setting up an arched filter, impurity particles will flow along the guide arch to the edge of the filter, so that the middle of the filter can remain transparent, reducing the risk of impurity particles accumulating on the filter surface. This can not only ensure the flow rate of the refrigerant, but also reduce the risk of filter clogging;

[0015] 2. By setting up the storage ring groove, the impurity particles on the filter net can enter the storage ring groove, reducing the risk of impurity particles accumulating on the surface of the filter net, thereby ensuring the permeability of the filter net and thus ensuring the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of Example 1;

[0017] Figure 2 is a cross-sectional view of the filter tube in Example 1;

[0018] Figure 3 It is a schematic diagram of the overall structure of Example 2.

[0019] Figure numerals: 1. filter tube; 2. flange; 3. filter screen; 4. filter plate; 5. guide arch; 6. guide ring; 7. guide slope; 8. storage ring groove; 9. limit ring; 10. fastening screw; 11. support frame; 12. pneumatic clamp; 13. self-locking caster. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings. Example

[0021] like Figure 1 、 Figure 2 The first embodiment of the present invention is shown, which discloses a filtration device for refrigerant production. The device comprises a vertically arranged filter tube 1 with flanges 2 at its upper and lower ends for connection to external piping. A filter screen 3 and a filter disc 4 are located within the filter tube 1. The filter disc 4 is positioned below the filter screen 3, and the inner diameter of the filter holes in the filter disc 4 is smaller than that of the filter screen 3, thereby achieving double filtration of the refrigerant.

[0022] Reference Figure 1 、 Figure 2 The center position of the upper surface of the filter screen 3 is arched upward to form a guide arch surface 5. The inner wall of the filter tube 1 is fixedly connected with a guide ring 6 along its circumference. The guide ring 6 is located above the filter screen 3. The inner hole of the guide ring 6 is aligned with the center position of the guide arch surface 5, and the upper surface of the guide ring 6 is integrally formed with a guide slope 7.

[0023] Reference Figure 1 、 Figure 2 The inner wall of the filter tube 1 is provided with a storage ring groove 8 along its circumference, and the bottom inner wall of the storage ring groove 8 is tangent to the guide arch surface 5, so that the impurity particles on the guide arch surface 5 can smoothly enter the storage ring groove 8, ensuring the permeability of the surface of the filter screen 3.

[0024] When filtering the refrigerant, the top flange 2 of the filter tube 1 is connected to the refrigerant delivery pipe, and the bottom flange 2 is connected to the refrigerant recovery pipe, with the filter tube 1 in a vertical position. During the refrigerant filtration process, impurity particles flow along the guide arch 5 toward the edge of the filter screen 3 and enter the storage ring groove 8, reducing the risk of impurity particles accumulating on the surface of the filter screen 3. This allows the filter screen 3 to remain transparent, ensuring the flow rate of the refrigerant and reducing the risk of clogging of the filter screen 3, thereby ensuring the filtration effect.

[0025] Reference Figure 1 、 Figure 2 The filter screen 3 is fixedly connected to the filter tube 1, and the filter disc 4 is detachably connected to the filter tube 1, and the filter disc 4 can be removed from the bottom port of the filter tube 1. A limit ring 9 is fixedly connected to the inner wall of the filter tube 1, and the upper surface of the filter disc 4 abuts against the lower surface of the limit ring 9. The edge of the filter disc 4 is connected to the limit ring 9 by multiple fastening screws 10, so that the filter disc 4 can be quickly disassembled and assembled. Example

[0026] like Figure 3The second embodiment of the present invention is shown. This embodiment differs from the first embodiment in that the filter device further includes a support frame 11, which is provided with pneumatic clamps 12 for clamping the filter tube 1. Furthermore, self-locking casters 13 are provided at the four corners of the bottom of the support frame 11 to facilitate movement of the support frame 11 by personnel.

[0027] If the filter tube 1 cannot be kept in a vertical state after the flange 2 at the top and the flange 2 at the bottom are connected to the refrigerant recovery pipe, the filter tube 1 can be fixed to the support frame 11 by means of a pneumatic clamp 12 to ensure that the filter tube 1 is in a vertical state.

[0028] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A filtering device for refrigerant production, comprising a vertically arranged filter tube (1), wherein a filter screen (3) is arranged inside the filter tube (1), characterized in that: The center position of the upper surface of the filter screen (3) is arched upward to form a guide arch surface (5); the inner wall of the filter tube (1) is fixedly connected to a guide ring (6) along its circumference; the guide ring (6) is located above the filter screen (3); the inner hole of the guide ring (6) is aligned with the center position of the guide arch surface (5), and the upper surface of the guide ring (6) is provided with a guide slope (7).

2. A refrigerant production filtering device according to claim 1, characterized in that: The inner wall of the filter tube (1) is provided with a storage annular groove (8) along its circumference, and the bottom inner wall of the storage annular groove (8) is tangent to the guide arch surface (5), so that foreign particles on the guide arch surface (5) can smoothly enter the storage annular groove (8).

3. The refrigerant production filtering device according to claim 1, characterized in that: A filter disc (4) is provided in the filter tube (1), the filter disc (4) is located below the filter screen (3), and the inner diameter of the filter holes on the filter disc (4) is smaller than the inner diameter of the filter holes on the filter screen (3).

4. A refrigerant production filtering device according to claim 3, characterized in that: The filter disc (4) is detachably connected to the filter tube (1), and the filter disc (4) can be taken out from the bottom port of the filter tube (1).

5. A refrigerant production filtering device according to claim 4, characterized in that: The inner wall of the filter tube (1) is fixedly connected to a limiting ring (9), the upper surface of the filter disc (4) abuts against the lower surface of the limiting ring (9), and the edge position of the filter disc (4) is connected to the limiting ring (9) via a plurality of fastening screws (10).

6. The refrigerant production filtering device according to claim 1, characterized in that: Flanges (2) are respectively provided at the upper and lower ends of the filter tube (1) for connection with external pipelines.

7. The refrigerant production filtering device according to claim 1, characterized in that: The filtering device further comprises a support frame (11), the support frame (11) being provided with pneumatic clamps (12) for clamping and fixing the filter tube (1), and self-locking casters (13) are respectively provided at the four corners of the bottom of the support frame (11).

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