Biochemical box using refrigeration mechanism to regulate and control evaporator

Abstract

The utility model relates to the technical field of biochemical boxes, in particular to a biochemical box with evaporators regulated and controlled by refrigerating mechanisms, which comprises a biochemical box shell, a group of refrigerating mechanisms and a plurality of box bodies are arranged in the biochemical box shell, and an evaporator is arranged in each box body. The inlet ends of the multiple evaporators are connected to the outlet end of the refrigerating mechanism in parallel through pipelines, the outlet ends of the multiple evaporators are connected to the inlet end of the refrigerating mechanism in parallel through pipelines, and the evaporators on the multiple pipelines are controlled to work at the same time or the evaporator on the single pipeline is controlled to work independently through the refrigerating mechanism. Therefore, the temperature of the plurality of box bodies can be regulated and controlled by one refrigerating mechanism. According to the utility model, one group of refrigeration mechanism is utilized, different refrigerant flows are regulated and distributed according to temperatures required by different box bodies, constant temperature of different temperature sections in the plurality of box bodies is realized, the production cost is reduced, the resource waste is reduced, the economic benefit is increased, and the occupied space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of biochemical boxes, in particular to a biochemical box using a refrigeration mechanism to regulate an evaporator. Background Art

[0002] The biochemical chambers currently used usually adopt a one-to-one series configuration in which a group of refrigeration mechanisms adjust the temperature of an evaporator. When multiple evaporators need to be adjusted, multiple groups of refrigeration mechanisms need to be configured. This structural configuration has high production costs, wastes resources, has low economic benefits, and occupies a large space.

[0003] In view of the above existing problems, a Chinese invention patent with a patent publication number of CN101191119A discloses a method for improving the temperature control accuracy and reliability of a biochemical incubator, wherein two groups of evaporation devices are installed in parallel in the refrigeration mechanism of the biochemical incubator, and two evaporators are switched in time by a two-position three-way solenoid valve so that the two evaporators work in turn, each group of evaporation devices includes an evaporator, a capillary tube and a filter, and the timed switching is achieved by a time controller, and the switching time is 2-5 hours. The prior art controls the operation of two groups of evaporators through one group of refrigeration mechanisms, but the two evaporators of the prior art can only work in turn, that is, only one evaporator can work at a time, and the two groups of evaporators cannot work at the same time.

[0004] Therefore, it is necessary to improve the prior art. Utility Model Content

[0005] In view of the defects of the prior art, the utility model provides a biochemical box that uses a refrigeration mechanism to regulate the evaporator. A group of variable frequency compressors are used to regulate and distribute different refrigerant flows according to the temperatures required by different boxes, thereby achieving constant temperatures in different temperature ranges in multiple boxes, reducing production costs, reducing waste of resources, increasing economic benefits, and saving occupied space.

[0006] In order to achieve the above purpose, the technical solution applied by the utility model is as follows:

[0007] A biochemical box that uses a refrigeration mechanism to control an evaporator comprises a biochemical box shell, in which a group of refrigeration mechanisms and a plurality of boxes are arranged, each box is respectively provided with an evaporator, inlet ends of the plurality of evaporators are respectively connected in parallel to outlet ends of the refrigeration mechanism through pipelines, and outlet ends of the plurality of evaporators are respectively connected in parallel to inlet ends of the refrigeration mechanism through pipelines, and the refrigeration mechanism is used to control the evaporators on the plurality of pipelines to work simultaneously or to control the evaporator on a single pipeline to work alone, thereby realizing a group of refrigeration mechanisms to control the temperatures of the plurality of boxes.

[0008] According to the above scheme, the box body includes box body one, box body two, box body three and box body four which are arranged at intervals. Box body one is provided with evaporator one, and evaporator one is connected to the refrigeration mechanism through pipeline one. Box body two is provided with evaporator two, and evaporator two is connected to the refrigeration mechanism through pipeline two. Box body three is provided with evaporator three, and evaporator three is connected to the refrigeration mechanism through pipeline three. Box body four is provided with evaporator four, and evaporator four is connected to the refrigeration mechanism through pipeline four.

[0009] According to the above scheme, the pipeline 1 is provided with a liquid reservoir 1, a quick-opening valve 1, a capillary tube 1 and a one-way valve 1, the inlet end of the liquid reservoir 1 is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir 1 is connected to the inlet end of the quick-opening valve 1 through a copper tube, the outlet end of the quick-opening valve 1 is connected to the inlet end of the capillary tube 1 through a copper tube, the outlet end of the capillary tube 1 is connected to the inlet end of the evaporator 1 through a copper tube, the outlet end of the evaporator 1 is connected to the inlet end of the one-way valve 1 through a copper tube, and the outlet end of the one-way valve 1 is connected to the inlet end of the refrigeration mechanism through a copper tube.

[0010] According to the above scheme, the pipeline 2 is provided with a liquid reservoir 2, a quick-opening valve 2, a capillary tube 2 and a one-way valve 2, the inlet end of the liquid reservoir 2 is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir 2 is connected to the inlet end of the quick-opening valve 2 through a copper tube, the outlet end of the quick-opening valve 2 is connected to the inlet end of the capillary tube 2 through a copper tube, the outlet end of the capillary tube 2 is connected to the inlet end of the evaporator 2 through a copper tube, the outlet end of the evaporator 2 is connected to the inlet end of the one-way valve 2 through a copper tube, and the outlet end of the one-way valve 2 is connected to the inlet end of the refrigeration mechanism through a copper tube.

[0011] According to the above scheme, the pipeline three is provided with a liquid reservoir three, a quick-opening valve three, a capillary tube three and a one-way valve three, the inlet end of the liquid reservoir three is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir three is connected to the inlet end of the quick-opening valve three through a copper tube, the outlet end of the quick-opening valve three is connected to the inlet end of the capillary tube three through a copper tube, the outlet end of the capillary tube three is connected to the inlet end of the evaporator three through a copper tube, the outlet end of the evaporator three is connected to the inlet end of the one-way valve three through a copper tube, and the outlet end of the one-way valve three is connected to the inlet end of the refrigeration mechanism through a copper tube.

[0012] According to the above scheme, the pipeline four is provided with a liquid reservoir four, a quick-opening valve four, a capillary tube four and a one-way valve four, the inlet end of the liquid reservoir four is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir four is connected to the inlet end of the quick-opening valve four through a copper tube, the outlet end of the quick-opening valve four is connected to the inlet end of the capillary tube four through a copper tube, the outlet end of the capillary tube four is connected to the inlet end of the evaporator four through a copper tube, the outlet end of the evaporator four is connected to the inlet end of the one-way valve four through a copper tube, and the outlet end of the one-way valve four is connected to the inlet end of the refrigeration mechanism through a copper tube.

[0013] According to the above scheme, the refrigeration mechanism includes a variable frequency compressor, a condenser, a drying filter, a distributor 1 and a distributor 2, the outlet end of the variable frequency compressor is connected to the inlet end of the condenser through a copper tube, the outlet end of the condenser is connected to the inlet end of the drying filter through a copper tube, the outlet end of the drying filter is connected to the inlet end of the distributor 1 through a copper tube, the outlet end of the distributor 1 is connected to the inlet end of the liquid reservoir 1 on pipeline 1, the inlet end of the liquid reservoir 2 on pipeline 2, the inlet end of the liquid reservoir 3 on pipeline 3 and the inlet end of the liquid reservoir 4 on pipeline 4 through copper tubes, respectively, the inlet end of the distributor 2 is connected to the outlet end of the one-way valve 1 on pipeline 1, the outlet end of the one-way valve 2 on pipeline 2, the outlet end of the one-way valve 3 on pipeline 3 and the outlet end of the one-way valve 4 on pipeline 4 through copper tubes, respectively, and the outlet end of the distributor 2 is connected to the inlet end of the variable frequency compressor through a copper tube.

[0014] According to the above solution, a needle valve 1 is provided on the copper tube between the outlet end of the condenser and the inlet end of the drying filter, and a needle valve 2 is provided on the copper tube between the outlet end of the distributor 2 and the inlet end of the variable frequency compressor.

[0015] Beneficial effects of the utility model:

[0016] The utility model adopts such a structural setting and utilizes a group of refrigeration mechanisms to regulate and distribute different refrigerant flows according to the temperatures required by different boxes, thereby achieving constant temperatures in different temperature ranges in multiple boxes, reducing production costs, reducing resource waste, increasing economic benefits, and saving occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the external structure of the biochemical box of the utility model;

[0018] Figure 2 It is a schematic diagram of the pipeline connection of the biochemical box of the utility model.

[0019] In the figure: 1. Box body 1; 11. Liquid reservoir 1; 12. Quick-opening valve 1; 13. Capillary 1; 14. Evaporator 1; 15. One-way valve 1; 2. Box body 2; 21. Liquid reservoir 2; 22. Quick-opening valve 2; 23. Capillary 2; 24. Evaporator 2; 25. One-way valve 2; 3. Box body 3; 31. Liquid reservoir 3; 32. Quick-opening valve 3; 33. Capillary 3; 34. Evaporator 3; 35. One-way valve 3; 4. Box body 4; 41. Liquid reservoir 4; 42. Quick-opening valve 4; 43. Capillary 4; 44. Evaporator 4; 45. One-way valve 4; 5. Variable frequency compressor; 6. Condenser; 7. Dry filter; 8. Distributor 1; 9. Distributor 2; 10. Needle valve 1; 20. Needle valve 2. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1 and Figure 2 As shown, the utility model uses a refrigeration mechanism to control the evaporator of the biochemical box, including a biochemical box shell, a group of refrigeration mechanisms and multiple boxes are arranged in the biochemical box shell, and each box is provided with an evaporator, the inlet ends of the multiple evaporators are connected to the outlet end of the refrigeration mechanism in parallel through pipelines, and the outlet ends of the multiple evaporators are connected to the inlet end of the refrigeration mechanism in parallel through pipelines, and the evaporators on multiple pipelines are controlled to work simultaneously or the evaporators on a single pipeline are controlled to work alone, thereby realizing a group of refrigeration mechanisms to control the temperature of multiple boxes. The utility model adopts such a structural setting, using a group of refrigeration mechanisms, according to the temperature required by different boxes, to control and distribute different refrigerant flows, to achieve constant temperature in different temperature sections in multiple boxes, reduce production costs, reduce resource waste, increase economic benefits, and save space. More specifically, by controlling the evaporators on multiple pipelines to work simultaneously or controlling the evaporators on a single pipeline to work alone through a group of refrigeration mechanisms, a one-to-many parallel configuration can be realized, which can reduce the area of ​​the refrigeration mechanism and the number of refrigeration mechanisms accordingly, saving the space occupied by the equipment.

[0022] In actual applications, each box is an independent biochemical box usage space, and each box can independently control the required temperature.

[0023] It should be noted that a group of refrigeration mechanisms is used to control multiple boxes and electrically assist the heating of the evaporator to achieve constant temperature in different temperature sections in each box.

[0024] In this embodiment, the box includes box one 1, box two 2, box three 3 and box four 4 which are arranged at intervals. Box one 1 is provided with evaporator one 14, and evaporator one 14 is connected to the refrigeration mechanism through pipeline one. Box two 2 is provided with evaporator two 24, and evaporator two 24 is connected to the refrigeration mechanism through pipeline two. Box three 3 is provided with evaporator three 34, and evaporator three 34 is connected to the refrigeration mechanism through pipeline three. Box four 4 is provided with evaporator four 44, and evaporator four 44 is connected to the refrigeration mechanism through pipeline four. The utility model adopts such a structural arrangement, and evaporator one 14, evaporator two 24, evaporator three 34 and evaporator four 44 are connected to the refrigeration mechanism in parallel through pipelines respectively, so as to achieve the effect of one group of refrigeration mechanisms regulating evaporator one 14, evaporator two 24, evaporator three 34 and evaporator four 44.

[0025] In this embodiment, the pipeline is provided with a liquid reservoir 11, a quick-opening valve 12, a capillary tube 13 and a one-way valve 15. The inlet end of the liquid reservoir 11 is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir 11 is connected to the inlet end of the quick-opening valve 12 through a copper tube, the outlet end of the quick-opening valve 12 is connected to the inlet end of the capillary tube 13 through a copper tube, the outlet end of the capillary tube 13 is connected to the inlet end of the evaporator 14 through a copper tube, the outlet end of the evaporator 14 is connected to the inlet end of the one-way valve 15 through a copper tube, and the outlet end of the one-way valve 15 is connected to the inlet end of the refrigeration mechanism through a copper tube. The utility model adopts such a structural setting that when the box body 1 has a cooling demand, the refrigerant generates a high-temperature and high-pressure liquid through the refrigeration mechanism, and the liquid enters the liquid storage tank 11 for storage. According to the quantity demand, the cold liquid flow is controlled by the quick opening valve 12 and the capillary tube 13, and then flows into the evaporator 14 to realize heat exchange. The liquid after heat exchange flows back to the refrigeration mechanism through the one-way valve 15 to realize circulation work.

[0026] In practical applications, the liquid reservoir 11 has a liquid storage balance function.

[0027] In this embodiment, the pipeline 2 is provided with a liquid reservoir 21, a quick-opening valve 22, a capillary 23 and a one-way valve 25. The inlet end of the liquid reservoir 21 is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir 21 is connected to the inlet end of the quick-opening valve 22 through a copper tube, the outlet end of the quick-opening valve 22 is connected to the inlet end of the capillary 23 through a copper tube, the outlet end of the capillary 23 is connected to the inlet end of the evaporator 24 through a copper tube, the outlet end of the evaporator 24 is connected to the inlet end of the one-way valve 25 through a copper tube, and the outlet end of the one-way valve 25 is connected to the inlet end of the refrigeration mechanism through a copper tube. The utility model adopts such a structural setting. When the box body 2 has a cooling demand, the refrigerant generates a high-temperature and high-pressure liquid through the refrigeration mechanism. The liquid enters the liquid storage tank 21 for storage. According to the quantity demand, the cold liquid flow is controlled by the quick-opening valve 22 and the capillary tube 23, and then flows into the evaporator 24 to realize heat exchange. The liquid after heat exchange flows back to the refrigeration mechanism through the one-way valve 25 to realize circulation work.

[0028] In practical applications, the second liquid reservoir 21 has a liquid storage balance function.

[0029] In this embodiment, the pipeline three is provided with a liquid reservoir three 31, a quick-opening valve three 32, a capillary tube three 33 and a one-way valve three 35, the inlet end of the liquid reservoir three 31 is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir three 31 is connected to the inlet end of the quick-opening valve three 32 through a copper tube, the outlet end of the quick-opening valve three 32 is connected to the inlet end of the capillary tube three 33 through a copper tube, the outlet end of the capillary tube three 33 is connected to the inlet end of the evaporator three 34 through a copper tube, the outlet end of the evaporator three 34 is connected to the inlet end of the one-way valve three 35 through a copper tube, and the outlet end of the one-way valve three 35 is connected to the inlet end of the refrigeration mechanism through a copper tube. The utility model adopts such a structural setting that when the box body three 3 has a cooling demand, the refrigerant generates a high-temperature and high-pressure liquid through the refrigeration mechanism, and the liquid enters the liquid storage tank three 31 for storage. According to the quantity demand, the cold liquid flow is controlled by the quick opening valve three 32 and the capillary tube three 33, and then flows into the evaporator three 34 to realize heat exchange. The liquid after heat exchange flows back to the refrigeration mechanism through the one-way valve three 35 to realize circulation work.

[0030] In practical applications, the liquid reservoir 31 has a liquid storage balance function.

[0031] In this embodiment, the pipeline four is provided with a liquid reservoir four 41, a quick-opening valve four 42, a capillary tube four 43 and a one-way valve four 45, the inlet end of the liquid reservoir four 41 is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir four 41 is connected to the inlet end of the quick-opening valve four 42 through a copper tube, the outlet end of the quick-opening valve four 42 is connected to the inlet end of the capillary tube four 43 through a copper tube, the outlet end of the capillary tube four 43 is connected to the inlet end of the evaporator four 44 through a copper tube, the outlet end of the evaporator four 44 is connected to the inlet end of the one-way valve four 45 through a copper tube, and the outlet end of the one-way valve four 45 is connected to the inlet end of the refrigeration mechanism through a copper tube. The utility model adopts such a structural setting that when the box body four 4 has a cooling demand, the refrigerant generates a high-temperature and high-pressure liquid through the refrigeration mechanism, and the liquid enters the liquid storage tank four 41 for storage. According to the quantity demand, the cold liquid flow is controlled by the quick opening valve four 42 and the capillary tube four 43, and then flows into the evaporator four 44 to realize heat exchange. The liquid after heat exchange flows back to the refrigeration mechanism through the one-way valve four 45 to realize circulation work.

[0032] In practical applications, the liquid reservoir 41 has a liquid storage balance function.

[0033] In this embodiment, the refrigeration mechanism includes a variable frequency compressor 5, a condenser 6, a drying filter 7, a distributor 1 8 and a distributor 2 9. The outlet end of the variable frequency compressor 5 is connected to the inlet end of the condenser 6 through a copper tube, the outlet end of the condenser 6 is connected to the inlet end of the drying filter 7 through a copper tube, the outlet end of the drying filter 7 is connected to the inlet end of the distributor 1 8 through a copper tube, the outlet end of the distributor 1 8 is respectively connected to the inlet end of the liquid reservoir 1 11 on the pipeline 1, the inlet end of the liquid reservoir 21 on the pipeline 2, the inlet end of the liquid reservoir 3 31 on the pipeline 3 and the inlet end of the liquid reservoir 4 41 on the pipeline 4 through copper tubes, the inlet end of the distributor 2 9 is respectively connected to the outlet end of the one-way valve 15 on the pipeline 1, the outlet end of the one-way valve 25 on the pipeline 2, the outlet end of the one-way valve 35 on the pipeline 3 and the outlet end of the one-way valve 45 on the pipeline 4 through copper tubes, and the outlet end of the distributor 2 9 is connected to the inlet end of the variable frequency compressor 5 through a copper tube. The utility model adopts such a structural arrangement that when the refrigeration mechanism is working, the variable frequency compressor 5 is started, and the refrigerant is compressed by the variable frequency compressor 5 into a high-temperature and high-pressure gas, and enters the condenser 6 through the connected copper tube. After condensation, the refrigerant becomes a medium-temperature and high-pressure liquid, and flows through the filter drying filter 7 through the connected copper tube, and then is distributed to the liquid reservoir 11, the liquid reservoir 21, the liquid reservoir 31, and the liquid reservoir 41 in the pipeline corresponding to the box through the distributor 8. According to the production quantity requirements of each box, the quick opening valve 12, the quick opening valve The second quick-opening valve 22, the third quick-opening valve 32, and the fourth quick-opening valve 42 control the refrigerant flow rate and distribute it as needed, and flow into the evaporator one 14, the evaporator two 24, the evaporator three 34, and the evaporator four 44 in each box to realize heat exchange. After the refrigerant passes through the evaporator one 14, the evaporator two 24, the evaporator three 34, and the evaporator four 44, it passes through the one-way valve one 15, the one-way valve two 25, the one-way valve three 35, and the one-way valve four 45, and then flows to the distributor two 9, and flows to the inlet end of the variable frequency compressor 5 through the connecting copper pipe to realize the circulation of the refrigerant.

[0034] In practical applications, the temperatures in box 1 1, box 2 2, box 3 3 and box 4 4 can be controlled simultaneously according to needs, or the temperatures in box 1 1, box 2 2, box 3 3 and box 4 4 can be controlled separately, which is convenient to use.

[0035] It should be noted that the quick-opening valve and the one-way valve are preferably solenoid valves, which can control the flow more accurately.

[0036] In this embodiment, a needle valve 10 is provided on the copper tube between the outlet end of the condenser 6 and the inlet end of the drying filter 7, and a needle valve 20 is provided on the copper tube between the outlet end of the distributor 9 and the inlet end of the variable frequency compressor 5. The utility model adopts such a structural setting, and the needle valve is a fine-tuning valve, whose valve plug is needle-shaped, and is mainly used to adjust the air flow rate and its adjustment accuracy is relatively high.

[0037] It should be noted that the number of boxes described in the utility model can be extended, such as adding box 5, box 6... box N in the biochemical box shell, and correspondingly adding corresponding pipelines 5, pipeline 6... pipeline N. In addition, the utility model also has the advantages of reducing the electric power of the machine; reducing the volume of the condenser, reducing the number of compressors, reducing the amount of copper pipes; reducing the volume of the machine, easy to use; and facilitating the user to compare experiments in different temperature ranges of multiple boxes.

[0038] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which belong to the protection scope of the present invention.

Claims

1. A biochemical box using a refrigeration mechanism to control an evaporator, comprising a biochemical box housing, characterized in that: A group of refrigeration mechanisms and multiple boxes are arranged in the shell of the biochemical box, and an evaporator is arranged in each box. The inlet ends of the multiple evaporators are respectively connected to the outlet ends of the refrigeration mechanism through pipelines in parallel, and the outlet ends of the multiple evaporators are respectively connected to the inlet end of the refrigeration mechanism through pipelines. The refrigeration mechanism controls the evaporators on multiple pipelines to work simultaneously or controls the evaporator on a single pipeline to work alone, thereby realizing a group of refrigeration mechanisms to regulate the temperature of multiple boxes.

2. A biochemical box using a refrigeration mechanism to control an evaporator according to claim 1, characterized in that: The box body includes box body 1, box body 2, box body 3 and box body 4 which are arranged at intervals. Evaporator 1 is arranged in box body 1, and evaporator 1 is connected to the refrigeration mechanism through pipeline 1. Evaporator 2 is arranged in box body 2, and evaporator 2 is connected to the refrigeration mechanism through pipeline 2. Evaporator 3 is arranged in box body 3, and evaporator 3 is connected to the refrigeration mechanism through pipeline 3. Evaporator 4 is arranged in box body 4, and evaporator 4 is connected to the refrigeration mechanism through pipeline 4.

3. A biochemical box using a refrigeration mechanism to control an evaporator according to claim 2, characterized in that: The pipeline is provided with a liquid reservoir, a quick-opening valve, a capillary and a one-way valve. The inlet end of the liquid reservoir is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir is connected to the inlet end of the quick-opening valve through a copper tube, the outlet end of the quick-opening valve is connected to the inlet end of the capillary through a copper tube, the outlet end of the capillary is connected to the inlet end of the evaporator through a copper tube, the outlet end of the evaporator is connected to the inlet end of the one-way valve through a copper tube, and the outlet end of the one-way valve is connected to the inlet end of the refrigeration mechanism through a copper tube.

4. A biochemical box using a refrigeration mechanism to control an evaporator according to claim 2, characterized in that: The second pipeline is provided with a second liquid reservoir, a second quick-opening valve, a second capillary tube and a second one-way valve. The inlet end of the second liquid reservoir is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the second liquid reservoir is connected to the inlet end of the second quick-opening valve through a copper tube, the outlet end of the second quick-opening valve is connected to the inlet end of the second capillary tube through a copper tube, the outlet end of the second capillary tube is connected to the inlet end of the second evaporator through a copper tube, the outlet end of the second evaporator is connected to the inlet end of the second one-way valve through a copper tube, and the outlet end of the second one-way valve is connected to the inlet end of the refrigeration mechanism through a copper tube.

5. A biochemical box using a refrigeration mechanism to control an evaporator according to claim 2, characterized in that: The pipeline three is provided with a liquid reservoir three, a quick-opening valve three, a capillary tube three and a one-way valve three. The inlet end of the liquid reservoir three is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir three is connected to the inlet end of the quick-opening valve three through a copper tube, the outlet end of the quick-opening valve three is connected to the inlet end of the capillary tube three through a copper tube, the outlet end of the capillary tube three is connected to the inlet end of the evaporator three through a copper tube, the outlet end of the evaporator three is connected to the inlet end of the one-way valve three through a copper tube, and the outlet end of the one-way valve three is connected to the inlet end of the refrigeration mechanism through a copper tube.

6. A biochemical box using a refrigeration mechanism to control an evaporator according to claim 2, characterized in that: The pipeline four is provided with a liquid reservoir four, a quick-opening valve four, a capillary tube four and a one-way valve four. The inlet end of the liquid reservoir four is connected to the outlet end of the refrigeration mechanism through a copper tube, the outlet end of the liquid reservoir four is connected to the inlet end of the quick-opening valve four through a copper tube, the outlet end of the quick-opening valve four is connected to the inlet end of the capillary tube four through a copper tube, the outlet end of the capillary tube four is connected to the inlet end of the evaporator four through a copper tube, the outlet end of the evaporator four is connected to the inlet end of the one-way valve four through a copper tube, and the outlet end of the one-way valve four is connected to the inlet end of the refrigeration mechanism through a copper tube.

7. A biochemical box using a refrigeration mechanism to control an evaporator according to any one of claims 1 to 6, characterized in that: The refrigeration mechanism includes a variable frequency compressor, a condenser, a drying filter, a distributor 1 and a distributor 2. The outlet end of the variable frequency compressor is connected to the inlet end of the condenser through a copper tube, the outlet end of the condenser is connected to the inlet end of the drying filter through a copper tube, the outlet end of the drying filter is connected to the inlet end of the distributor 1 through a copper tube, the outlet end of the distributor 1 is connected to the inlet end of the liquid reservoir 1 on pipeline 1, the inlet end of the liquid reservoir 2 on pipeline 2, the inlet end of the liquid reservoir 3 on pipeline 3 and the inlet end of the liquid reservoir 4 on pipeline 4 through copper tubes, respectively, the inlet end of the distributor 2 is connected to the outlet end of the one-way valve 1 on pipeline 1, the outlet end of the one-way valve 2 on pipeline 2, the outlet end of the one-way valve 3 on pipeline 3 and the outlet end of the one-way valve 4 on pipeline 4 through copper tubes, respectively, and the outlet end of the distributor 2 is connected to the inlet end of the variable frequency compressor through a copper tube.

8. A biochemical box using a refrigeration mechanism to control an evaporator according to claim 7, characterized in that: A first needle valve is arranged on the copper tube between the outlet end of the condenser and the inlet end of the drying filter, and a second needle valve is arranged on the copper tube between the outlet end of the second distributor and the inlet end of the variable frequency compressor.

Images