Refrigeration type centrifugal machine

Abstract

The utility model relates to the field of centrifugal machines, in particular to a refrigeration type centrifugal machine. Comprising a base, a centrifugal part arranged on the base, an inner container arranged on the base and used for wrapping the centrifugal part, a box body arranged on the base and used for installing the inner container, a heat preservation part arranged in the box body and a micro-channel evaporator arranged in the box body and located between the heat preservation part and the inner container. The base is provided with a refrigeration assembly used for conveying refrigerants into the micro-channel evaporator. The application has the effects of reducing the usage amount of the refrigerant and improving the cooling efficiency.

Description

Technical Field

[0001] The present application relates to the field of centrifuges, and in particular to a refrigerated centrifuge. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate liquids from solids or components in a mixture of liquids and liquids. It is often used in the chemical, food processing, pharmaceutical and other fields.

[0003] Existing refrigeration centrifuges mainly use copper tube coils welded as evaporator materials, and a small number of them use semiconductors for refrigeration. However, the cost of existing copper tubes or semiconductors is relatively high, and the copper tube coils need to be welded to ensure the connection strength of the copper tubes. During use, the welding position is prone to leakage, which cannot meet the needs of high-speed, overspeed or large-rotor centrifugal experiments. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present application provides a refrigerated centrifuge.

[0005] The present application provides a refrigerated centrifuge, which adopts the following technical solution:

[0006] A refrigeration centrifuge comprises a base, a centrifugal component arranged on the base, an inner liner arranged on the base and used to wrap the centrifugal component, a box body arranged on the base and used to install the inner liner, a heat preservation component arranged in the box body, and a microchannel evaporator arranged in the box body and located between the heat preservation component and the inner liner. A refrigeration component for transmitting refrigerant to the microchannel evaporator is provided on the base.

[0007] By adopting the above technical solution, the base is used to install the centrifugal parts, the box body and the refrigeration assembly. The refrigeration assembly transports the refrigerant to the microchannel evaporator, and the centrifugal parts in the inner tank are cooled by the microchannel evaporator. During the high-speed rotation of the centrifugal parts, the impact on the microchannel evaporator is small, thereby improving the cooling stability of the microchannel evaporator. The insulation part improves the stability of the temperature in the box body and reduces the energy consumption required for cooling.

[0008] Preferably, the microchannel evaporator includes a microchannel arranged along the outer wall of the inner tank, a collecting pipe 1 arranged at one end of the microchannel, and a collecting pipe 2 arranged at the other end of the microchannel, a plurality of positioning plates 1 are provided on the side of the collecting pipe 1 close to the collecting pipe 2, a plurality of positioning plates 2 cooperating with the positioning plates 1 are provided on the side of the collecting pipe 2 close to the collecting pipe 1, and through holes for bolts to pass through are opened on the positioning plates 1 and 2.

[0009] By adopting the above technical solution, the refrigeration component transfers the refrigerant to the microchannel, first through the collecting pipe 2 to the microchannel, the microchannel is surrounded by the outer wall of the inner tank, which is convenient for cooling the centrifugal parts in the inner tank, the positioning plate 1 and the positioning plate 2 are used to bolt the microchannel to the inner tank, thereby improving the stability of the microchannel, and the collecting pipe 1 is used for the refrigerant to flow out of the microchannel in a unified manner.

[0010] Preferably, the refrigeration assembly includes a compressor and a condenser arranged on a base, the compressor is provided with a pipeline 1, one end of the pipeline 1 is connected to the compressor, and the other end of the pipeline 1 is connected to a collection pipe 1, the collection pipe 2 is provided with a pipeline 2, one end of the pipeline 2 is connected to the collection pipe 2, and the other end of the pipeline 2 is connected to the condenser, the condenser is provided with a pipeline 3, one end of the pipeline 3 is connected to the condenser, and the other end of the pipeline 3 is connected to the compressor.

[0011] By adopting the above technical solution, the compressor is used to compress the refrigerant, and the refrigerant flows into the condenser through pipeline three. After condensation by the condenser, the refrigerant enters pipeline two from the condenser, enters the microchannel through pipeline two, and then the refrigerant in the microchannel is transported to the compressor by pipeline three for compression to form a refrigeration cycle.

[0012] Preferably, a filter for filtering the refrigerant is provided on the second pipe.

[0013] By adopting the above technical solution, the filter is used to filter the refrigerant, thereby extending the service life of the refrigerant.

[0014] Preferably, a control valve for controlling the flow of refrigerant is provided on the pipeline 2.

[0015] By adopting the above technical solution, the control valve is used to control the circulation of the refrigerant.

[0016] Preferably, a connector is provided between the microchannel and the inner tank, and the connector is a thermal conductive adhesive.

[0017] By adopting the above technical solution, the connector improves the connection strength between the microchannel and the inner tank, and the thermal conductive adhesive not only improves the stability of the microchannel on the inner tank, but also has a good temperature conduction effect.

[0018] Preferably, the base is provided with a support seat for supporting the box body.

[0019] By adopting the above technical solution, the support seat improves the stability of the box body on the base, and at the same time the support seat provides an installation space for the driving structure of the centrifugal component.

[0020] Preferably, the box body is provided with a box cover for opening and closing the box body.

[0021] By adopting the above technical solution, the box cover improves the thermal insulation effect of the box body.

[0022] To sum up, the microchannel is arranged along the inner tank to increase the heat exchange area and heat exchange efficiency, balance the cooling range, and improve the cooling efficiency of the microchannel evaporator; the insulation component is used for thermal insulation to reduce energy consumption; the microchannel and the refrigeration component form a refrigeration cycle through pipeline one, pipeline two and pipeline three, and at the same time, the centrifugal component of the present application is located in the inner tank to reduce the impact of the centrifuge operation on the microchannel evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a refrigerated centrifuge of the present application;

[0024] Figure 2 This is a schematic diagram of the structure of a refrigerated centrifuge in the present application with the box cover removed;

[0025] Figure 3 is a cross-sectional view of a refrigerated centrifuge of the present application;

[0026] Figure 4 This is a schematic diagram of the structure of a refrigerated centrifuge without a box body in the present application;

[0027] Figure 5 This is a schematic diagram of the structure of a microchannel evaporator in a refrigeration centrifuge in the present application. Figure 1 ;

[0028] Figure 6 This is a schematic diagram of the structure of a microchannel evaporator in a refrigeration centrifuge in the present application. Figure 2 .

[0029] Explanation of the reference numerals: 1. base; 2. centrifugal part; 3. liner; 4. box body; 5. insulation part; 6. microchannel evaporator; 61. microchannel; 62. manifold pipe one; 63. manifold pipe two; 7. refrigeration assembly; 71. compressor; 72. condenser; 8. positioning plate one; 9. positioning plate two; 10. through hole; 11. pipe one; 12. pipe two; 13. pipe three; 14. filter; 15. connector; 16. support seat; 17. box cover; 18. control valve. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 6 This application is described in further detail.

[0031] The present application embodiment discloses a refrigerated centrifuge. Figure 1 and Figure 2 , comprising a base 1, on which a box body 4 is fixedly mounted, a box cover 17 for opening and closing the box body 4 is fixedly mounted on the top surface of the box body 4, an inner liner 3 is mounted in the box body 4, and a cavity is formed between the inner liner 3 and the box body 4.

[0032] Reference Figure 2 and Figure 3 , a thermal insulation component 5 located in the cavity is fixedly installed in the box body 4, and the thermal insulation component 5 is used to improve the thermal insulation effect of the box body 4. In the embodiment of the present application, the thermal insulation component 5 uses a polyurethane foaming agent, and the polyurethane foaming agent is filled in the cavity and forms a thermal insulation layer, which effectively improves the thermal insulation effect of the box body 4; according to existing materials, the installer can also use other materials that play a thermal insulation role, such as thermal insulation rock wool or polypropylene. A centrifugal component 2 for material separation experiments is installed in the inner tank 3. In order to avoid the driving mechanism of the centrifugal component 2, a support seat 16 for supporting the box body 4 is fixedly installed on the base 1, and the support seat 16 provides an installation space for the driving mechanism of the centrifugal component 2. A refrigeration component 7 for conveying refrigerant to the microchannel evaporator 6 is also fixedly installed on the base 1.

[0033] Reference Figure 1 and Figure 4 The refrigeration assembly 7 includes a compressor 71 and a condenser 72 fixedly mounted on the base 1, and the microchannel evaporator 6 includes a microchannel 61 surrounded along the outer wall of the inner tank 3, a collecting pipe 1 62 fixedly mounted at one end of the microchannel 61, and a collecting pipe 2 63 fixedly mounted at the other end of the microchannel 61.

[0034] Reference Figure 5 and Figure 6 Both the collecting pipe 1 62 and the collecting pipe 2 63 are connected to the capillary tube of the microchannel 61 to facilitate the flow of the refrigerant in the microchannel 61 .

[0035] Reference Figure 1 and Figure 4 The liquid inlet end of the compressor 71 is fixedly connected with a pipe 11, one end of which is connected to the compressor 71, and the other end of which is connected to the collection pipe 1 62; the collection pipe 2 63 is fixed with a pipe 2 12, one end of which is connected to the collection pipe 2 63, and the other end of which is connected to the liquid outlet end of the condenser 72; the liquid inlet end of the condenser 72 is fixed with a pipe 3 13, one end of which is connected to the liquid inlet end of the condenser 72, and the other end of which is connected to the liquid outlet end of the compressor 71. A refrigeration cycle pipeline is formed by pipe 1 11, pipe 2 12 and pipe 3 13. A filter 14 is installed on pipe 2 12 to effectively extend the service life of the refrigerant. At the same time, a control valve 18 is installed on pipe 2 12 to control the circulation of the refrigerant. The control valve 18 in the embodiment of the present application can be a solenoid valve or a quick-opening valve, and the filter 14 is installed between the control valve 18 and the condenser 72.

[0036] Reference Figure 4 and Figure 5In order to improve the stability of the microchannel 61 on the inner liner 3, a plurality of positioning plates 1 8 are fixed along the length direction on one side of the collecting pipe 1 62 close to the collecting pipe 2 63, and a plurality of positioning plates 2 9 are fixed on one side of the collecting pipe 2 63 close to the collecting pipe 1 62. The positioning plates 1 8 and the positioning plates 2 9 correspond to each other. Through holes 10 for bolts to pass through are provided on the positioning plates 1 8 and the positioning plates 2 9. The screws are tightened on the positioning plates 1 8 and the positioning plates 2 9 to allow the microchannel 61 to fit on the inner liner 3. A connector 15 is also provided between the microchannel 61 and the inner liner 3. The connector 15 is a heat-conducting glue. The heat-conducting glue is used to improve the stability of the microchannel 61 on the inner liner 3 and effectively reduce the influence of the centrifugal part 2 on the microchannel 61 during operation. At the same time, the heat-conducting glue has good thermal conductivity, which is convenient for the microchannel 61 to cool the inner liner 3.

[0037] The implementation principle of a refrigeration centrifuge in an embodiment of the present application is as follows: the material to be centrifuged is placed in the centrifugal part 2, and the door is closed. The refrigeration system is started, and the compressor 71 starts to operate to promote the circulation of the refrigerant. The compressed and condensed refrigerant expands and absorbs heat in the microchannel 61 structure, cooling the temperature in the inner tank 3. After the refrigerant expands and absorbs heat, it enters the compressor 71 through the pipeline 11. The compressor 71 compresses the refrigerant, and the refrigerant enters the condenser 72 through the pipeline 3 13 for condensation. The condensed refrigerant is then transmitted back to the microchannel 61 through the pipeline 2 12 to form a refrigeration cycle. The present application increases the heat exchange area and heat exchange efficiency of the heat exchange device through the microchannel 61, reduces the amount of refrigerant used and improves the cooling efficiency; the microchannel 61 of the present application reduces the welding link, saves the use of materials, reduces the risk of deformation caused by welding and the manufacturing labor cost, and effectively saves the cooling cost and installation difficulty.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A refrigerated centrifuge, characterized in that: The invention comprises a base (1), a centrifugal member (2) arranged on the base (1), an inner liner (3) arranged on the base (1) and used to wrap the centrifugal member (2), a box (4) arranged on the base (1) and used to install the inner liner (3), a heat preservation member (5) arranged in the box (4), and a microchannel evaporator (6) arranged in the box (4) and located between the heat preservation member (5) and the inner liner (3); a refrigeration component (7) for conveying a refrigerant into the microchannel evaporator (6) is provided on the base (1).

2. A refrigerated centrifuge according to claim 1, characterized in that: The microchannel evaporator (6) comprises a microchannel (61) arranged along the outer wall of the inner tank (3), a collecting pipe (62) arranged at one end of the microchannel (61), and a collecting pipe (63) arranged at the other end of the microchannel (61), a plurality of positioning plates (8) being arranged on the side of the collecting pipe (62) close to the collecting pipe (63), a plurality of positioning plates (9) cooperating with the positioning plates (8) being arranged on the side of the collecting pipe (63) close to the collecting pipe (62), and through holes (10) for bolts to pass through are provided on the positioning plates (8) and the positioning plates (9).

3. A refrigerated centrifuge according to claim 2, characterized in that: The refrigeration assembly (7) comprises a compressor (71) and a condenser (72) arranged on a base (1); the compressor (71) is provided with a pipe one (11); one end of the pipe one (11) is connected to the compressor (71); the other end of the pipe one (11) is connected to a collection pipe one (62); the collection pipe two (63) is provided with a pipe two (12); one end of the pipe two (12) is connected to the collection pipe two (63); the other end of the pipe two (12) is connected to the condenser (72); the condenser (72) is provided with a pipe three (13); one end of the pipe three (13) is connected to the condenser (72); the other end of the pipe three (13) is connected to the compressor (71).

4. A refrigerated centrifuge according to claim 3, characterized in that: The second pipe (12) is provided with a filter (14) for filtering the refrigerant.

5. A refrigerated centrifuge according to claim 3, characterized in that: The second pipeline (12) is provided with a control valve (18) for controlling the flow of refrigerant.

6. A refrigerated centrifuge according to claim 1, characterized in that: A connecting piece (15) is provided between the microchannel (61) and the inner container (3), and the connecting piece (15) is a heat-conducting glue.

7. A refrigerated centrifuge according to claim 1, characterized in that: The base (1) is provided with a support seat (16) for supporting the box body (4).

8. A refrigerated centrifuge according to claim 1, characterized in that: The box body (4) is provided with a box cover (17) for opening and closing the box body (4).

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