Refrigerating system and slicing machine with same

Abstract

The utility model relates to a refrigerating system and a slicing machine with the same. The refrigerating system comprises a condenser, a freezing box body, a main refrigerating unit and an auxiliary refrigerating unit, the condenser comprises two inlet ends and two outlet ends in one-to-one correspondence with the two inlet ends; the main refrigeration unit comprises a main compressor, a main capillary tube, a quick-freezing table and an evaporator arranged in the freezing box body which are connected in sequence, and the main refrigeration unit is connected with one inlet end and the corresponding outlet end of the condenser; the auxiliary refrigeration unit comprises an auxiliary compressor, an auxiliary capillary tube and a sample head which are connected in sequence, and the auxiliary refrigeration unit is connected with the other inlet end and the other corresponding outlet end of the condenser; according to the utility model, the auxiliary refrigeration unit is arranged to cool the sample head, so that a sample is directly frozen through the sample head while the temperature in the freezing box body is kept stable, and the sample can be more accurately cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of cryotome, in particular to a refrigeration system and a slicer with the same. Background Art

[0002] The cryotome hardens the tissue through refrigeration, then installs it on the fixed fixture of the robotic arm, and drives the robotic arm to reciprocate up and down by shaking the handwheel, and makes a relative reciprocating up and down movement and a forward feeding movement with the blade for cutting the tissue fixed, so as to cut out tissue sections with a micron-level thickness. Therefore, the refrigeration effect is crucial for the cryotome. Due to the different water content and oil content of tissues in different parts, different low temperatures are required during slicing to ensure the hardness of the tissue. If the temperature of the tissue with more water is too low, the cut slices will be broken; the tissue with more oil needs a relatively lower temperature to cut out complete thin slices.

[0003] Over the years, in medical, laboratory histology, molecular biology, cytology, and pathological tissue cryotomes, most use one compressor to refrigerate the freezing table and the freezing chamber. The freezing table is used to freeze the tissue first; and keep the temperature in the freezing chamber to ensure that the tissue to be cut will not soften during cutting. However, it is difficult to accurately control the temperature of the sample through the ambient temperature in the freezing chamber. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a refrigeration system and a slicer with the same. By setting a secondary refrigeration unit to cool the sample head, while keeping the temperature in the freezing chamber stable, the sample can be directly frozen by the sample head, and the temperature of the sample can be more accurately controlled.

[0005] The technical solution for the utility model to solve the above technical problems is as follows: A refrigeration system and a slicer with the same, including a condenser, a freezing chamber, a main refrigeration unit, and a secondary refrigeration unit; the condenser includes two inlet ends and two outlet ends corresponding to the two inlet ends one by one;

[0006] The main refrigeration unit includes a main compressor, a main capillary tube, a quick-freezing table, and an evaporator arranged in the freezing chamber; the air outlet of the main compressor is connected to one of the inlet ends of the condenser, and the corresponding outlet end of the condenser is connected to the quick-freezing table and the air inlet of the evaporator through the main capillary tube, and the air outlets of the quick-freezing table and the evaporator are connected to the air inlet of the main compressor;

[0007] The auxiliary refrigeration unit includes an auxiliary compressor, an auxiliary capillary tube, and a sample head; the outlet of the auxiliary compressor is connected to another inlet end of the condenser, the other outlet end of the condenser is connected to the inlet of the sample head through the auxiliary capillary tube, and the outlet of the sample head is connected to the inlet of the auxiliary compressor.

[0008] Based on the above technical solution, the present utility model can be further improved as follows.

[0009] Further, the auxiliary refrigeration unit further includes a heat exchanger and a circulation pump. The primary side of the heat exchanger forms a unit with the auxiliary compressor, the auxiliary capillary tube, and the condenser, and the secondary side of the heat exchanger forms a unit with the circulation pump and the sample head. And the sample head is connected to the heat exchanger and the circulation pump through a hose.

[0010] Further, a heating element is provided on the sample head.

[0011] Further, an electromagnetic regulating valve is connected between the outlet of the main compressor and the outlet of the main capillary tube.

[0012] Further, a main drying tube is provided between one of the outlet ends of the condenser and the main capillary tube.

[0013] Further, an auxiliary drying tube is provided between the other outlet end of the condenser and the auxiliary capillary tube.

[0014] Further, the sample head and the quick-freezing table are also arranged in the freezer body, and the condenser, the main compressor, and the auxiliary compressor are arranged outside the freezer body.

[0015] Further, one of the outlet ends of the condenser is connected to the inlet of the quick-freezing table through the main capillary tube, the outlet of the quick-freezing table is connected to the inlet of the evaporator, and the outlet of the evaporator is connected to the inlet of the main compressor.

[0016] The present utility model also proposes a slicing machine, including the refrigeration system described in any one of the above.

[0017] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0018] 1. By setting an auxiliary refrigeration unit to cool the sample head, while keeping the temperature in the freezer body stable, the sample can be directly frozen through the sample head, and the sample can be cooled more precisely.

[0019] 2. Since the sample head needs to move frequently and needs to be connected by a hose, the utility model isolates the sample head and the auxiliary compressor by setting a heat exchanger, preventing the high-pressure gas generated by the auxiliary compressor from entering the sample head, ensuring a low-pressure environment inside the hose, and preventing the high-pressure gas from exacerbating the fatigue rupture of the hose. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a slicing machine provided by an embodiment of the utility model;

[0021] Figure 2 It is a schematic structural diagram of a refrigeration system provided by an embodiment of the utility model;

[0022] Figure 3 It is a schematic system structure diagram of the refrigeration system in an embodiment of the utility model;

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Housing; 2. Condenser; 3. Freezing chamber; 4. Main refrigeration unit; 41. Main compressor; 42. Main drying pipe; 43. Main capillary tube; 44. Quick-freezing table; 45. Evaporator; 46. Electromagnetic regulating valve; 5. Auxiliary refrigeration unit; 51. Auxiliary compressor; 52. Auxiliary drying pipe; 53. Auxiliary capillary tube; 54. Heat exchanger; 55. Circulation pump; 56. Sample head; 57. Hose. Detailed Description of the Embodiment

[0025] To facilitate the understanding of this application, the following will describe this application more comprehensively with reference to the relevant drawings. Embodiments of this application are given in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0027] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprising", "including" or "having", etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0028] A slicer, comprising a housing 1 and a refrigeration system arranged inside the housing 1. The refrigeration system includes a condenser 2, a freezing chamber 3, a main refrigeration unit 4 and an auxiliary refrigeration unit 5. The condenser 2 includes two inlet ends and two outlet ends corresponding to the two inlet ends one by one.

[0029] In this embodiment, the main refrigeration unit 4 includes a main compressor 41, a main drying pipe 42, a main capillary tube 43, a quick-freezing table 44 and an evaporator 45. The auxiliary refrigeration unit 5 includes an auxiliary compressor 51, an auxiliary drying pipe 52, an auxiliary capillary tube 53, a heat exchanger 54, a circulation pump 55 and a sample head 56. Among them, the quick-freezing table 44, the evaporator 45 and the sample head 56 are arranged inside the freezing chamber 3. The sample head 56 is used to clamp the sample, and the quick-freezing table 44 is used to place the sliced sample. The main compressor 41, the main drying pipe 42, the auxiliary compressor 51, the auxiliary drying pipe 52, the heat exchanger 54 and the circulation pump 55 are arranged outside the freezing chamber 3.

[0030] The main refrigeration unit 4 is used to control the temperature of the quick-freezing table 44 and control the temperature inside the freezing chamber 3 through the evaporator 45. Specifically, the outlet of the main compressor 41 is connected to one of the inlet ends of the condenser 2. The corresponding outlet end of the condenser 2 is connected to the main drying pipe 42. The main drying pipe 42 is connected to the inlets of the quick-freezing table 44 and the evaporator 45 through the main capillary tube 43. The outlets of the quick-freezing table 44 and the evaporator 45 are connected to the inlet of the main compressor 41.

[0031] In this embodiment, the quick-freezing table 44 and the evaporator 45 are arranged in series. One of the outlet ends of the condenser 2 is connected to the inlet of the quick-freezing table 44 through the main capillary tube 43. The outlet of the quick-freezing table 44 is connected to the inlet of the evaporator 45. The outlet of the evaporator 45 is connected to the inlet of the main compressor 41, so that the cold air first passes through the quick-freezing table 44 and then through the evaporator 45, thereby ensuring that the quick-freezing table 44 has the lowest temperature.

[0032] In addition, the outlet of the main compressor 41 and the outlet of the main capillary tube 43 are connected through an electromagnetic regulating valve 46. By controlling the opening degree of the electromagnetic regulating valve 46, the proportion of the hot air entering the condenser 2 can be controlled. A part of the hot air passes through the electromagnetic regulating valve 46 and is mixed with the cold air generated by the condenser 2 and then enters the quick-freezing table 44 and the evaporator 45, thereby controlling the temperature inside the quick-freezing table 44 and the freezing chamber 3 and preventing the samples in the quick-freezing table 44 and the freezing chamber 3 from being damaged due to too low temperature.

[0033] The main refrigeration unit 4 is used to control the temperature of the sample head 56. The outlet of the auxiliary compressor 51 is connected to the other inlet end of the condenser 2. The other outlet end corresponding to the condenser 2 is connected to the auxiliary drying pipe 52. The auxiliary drying pipe 52 is connected to the auxiliary capillary 53. The primary side of the heat exchanger 54 forms a unit with the auxiliary compressor 51, the auxiliary drying pipe 52, the auxiliary capillary 53 and the condenser 2. The secondary side of the heat exchanger 54 forms a unit with the circulation pump 55 and the sample head 56. And the sample head 56 is connected to the heat exchanger 54 and the circulation pump 55 through a hose 57.

[0034] Since the sample head 56 needs to be moved frequently and needs to be connected through the hose 57, in this embodiment, the heat exchanger 54 is provided to isolate the sample head 56 and the auxiliary compressor 51, preventing the high-pressure gas generated by the auxiliary compressor 51 from entering the sample head 56, ensuring a low-pressure environment inside the hose 57, and avoiding the high-pressure gas from accelerating the fatigue rupture of the hose 57.

[0035] In addition, a heating element is provided on the sample head 56. When the sample head 56 frosts, the heating element can be turned on to heat the sample head 56, accelerating the melting of the frost on the sample head 56 and preventing the sample from being frozen. Since the sample head 56 is in the auxiliary refrigeration unit 5, the heating is thus prevented from affecting the quick-freezing table 44 and the evaporator 45 in the main refrigeration unit 4.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A refrigeration system, characterized in that, It includes a condenser, a freezing box body, a main refrigeration unit and a sub-refrigeration unit; the condenser includes two inlet ends and two outlet ends corresponding to the two inlet ends one by one; The main refrigeration unit includes a main compressor, a main capillary tube, a quick-freezing table and an evaporator arranged in the freezing box body; The outlet of the main compressor is connected to one of the inlet ends of the condenser, the corresponding outlet end of the condenser is connected to the quick-freezing table and the inlet of the evaporator through the main capillary tube, and the outlets of the quick-freezing table and the evaporator are connected to the inlet of the main compressor; The sub-refrigeration unit includes a sub-compressor, a sub-capillary tube and a sample head; the outlet of the sub-compressor is connected to the other inlet end of the condenser, the corresponding other outlet end of the condenser is connected to the inlet of the sample head through the sub-capillary tube, and the outlet of the sample head is connected to the inlet of the sub-compressor.

2. The refrigeration system according to claim 1, characterized in that, The sub-refrigeration unit further includes a heat exchanger and a circulation pump. The primary side of the heat exchanger forms a unit with the sub-compressor, the sub-capillary tube and the condenser, the secondary side of the heat exchanger forms a unit with the circulation pump and the sample head, and the sample head is connected to the heat exchanger and the circulation pump through a hose.

3. A refrigeration system according to claim 1, characterized in that, A heating element is arranged on the sample head.

4. A refrigeration system according to claim 1, wherein An electromagnetic regulating valve is connected between the outlet of the main compressor and the outlet of the main capillary tube.

5. A refrigeration system according to claim 1, characterized in that, A main drying tube is arranged between one of the outlet ends of the condenser and the main capillary tube.

6. A refrigeration system according to claim 1, characterized in that, A sub-drying tube is arranged between the other outlet end of the condenser and the sub-capillary tube.

7. A refrigeration system according to claim 1, characterized in that, The sample head and the quick-freezing table are also arranged in the freezing box body, and the condenser, the main compressor and the sub-compressor are arranged outside the freezing box body.

8. A refrigeration system according to claim 1, characterized in that, One of the outlet ends of the condenser is connected to the inlet of the quick-freezing table through the main capillary tube, the outlet of the quick-freezing table is connected to the inlet of the evaporator, and the outlet of the evaporator is connected to the inlet of the main compressor.

9. A slicing machine, characterized in that, It includes the refrigeration system according to any one of claims 1-8.

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