Super-clean bench with refrigeration function

Abstract

The utility model discloses an ultra-clean workbench with a refrigeration function. The ultra-clean workbench comprises a workbench body, a filter unit, an air spring, a glass sliding door, a window, a refrigeration unit, an operation chamber and an isolation conveying chamber. The refrigerating unit is mounted at the lower end of the worktable body to regulate and control the temperature of the operating room, so that the operating room is always kept in a hundred-grade pure environment of 4 DEG C in the use process, the activity of a sample and the characteristics of some temperature-sensitive materials or reagents are favorably kept, and the temperature-sensitive materials or reagents can be conveniently taken out by arranging the window on the glass sliding door. The operating room is arranged in the operating room and sleeved with the protective gloves, operation of personnel is facilitated, the operating room is always separated from the external environment in the experiment process, the environment in the operating room is prevented from being polluted, the hundred-grade pure environment is kept, reagents and samples are conveniently conveyed into the operating room through the arrangement of the isolation conveying room, and pollution to the interior of the operating room is reduced.

Description

Technical Field

[0001] The utility model relates to the field of clean benches, in particular to a clean bench with refrigeration function. Background Art

[0002] The clean bench, also known as the purification bench, is designed to meet the needs of modern industry, optoelectronics industry, biopharmaceuticals, scientific research and other fields for the cleanliness of local working areas. The air is sucked into the pre-filter through the fan, and then enters the high-efficiency filter through the static pressure box for filtration. The filtered air is sent out in a vertical or horizontal airflow state, so that the operating area reaches Class 100 cleanliness, ensuring the production requirements for environmental cleanliness.

[0003] The operating environment temperature of the existing clean bench is generally 5℃-35℃, and the temperature fluctuation is unstable, which makes it easy to affect the characteristics and activity of some temperature-sensitive materials when conducting experiments, which is not conducive to the accurate conduct of the experiment. In addition, when the clean bench is in use, the glass sliding door is usually opened directly for operation, which poses a risk of contamination of the Class 100 pure environment in the clean bench, which is not conducive to maintaining the Class 100 pure environment of the clean bench during the entire experiment. Utility Model Content

[0004] To this end, it is necessary to provide a clean bench with refrigeration to solve the problems recorded in the background technology.

[0005] To achieve the above-mentioned purpose, the present application provides a clean workbench with refrigeration, including a workbench body, a filter unit, a gas spring, a glass sliding door, a window, a refrigeration unit, an operating room and an isolation transfer room; a filter unit is installed inside the top of the workbench body; a gas spring is rotatably connected to the front end of the workbench body, and the front end of the gas spring is rotatably connected to the glass sliding door; the top of the glass sliding door is hinged to the workbench body, and the glass sliding door is provided with a window; the refrigeration unit is installed at the top of the workbench body, an operating room is provided inside the workbench body, and an isolation transfer room is provided at the bottom of the operating room.

[0006] As a further solution of the utility model, the inlet and outlet of the isolation transfer chamber are both provided with openable and closable sealing covers, and the outlet of the isolation transfer chamber is located at the bottom end of the operating chamber, so that the isolation transfer chamber is in a relatively sealed state, and the sealing cover at the top is placed in the operating chamber, and the front end sealing cover is placed in the external environment, and the isolation transfer chamber serves as a transmission channel.

[0007] As a further scheme of the utility model, the refrigeration unit includes a compressor, a condenser, a throttling device and an evaporator; the compressor, condenser, throttling device and evaporator are connected by pipelines; the compressor compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gas to promote the circulation of the refrigerant in the system; the condenser is used to cool the high-temperature and high-pressure gaseous refrigerant into a liquid state, releasing the heat carried by the compression in the compressor; the throttling device serves as a device for controlling the flow rate of the refrigerant, and controls the flow rate and flow direction of the refrigerant by decompressing the high-pressure liquid refrigerant and expanding it into a low-pressure liquid state; the evaporator serves as a heat exchange device, and is used to evaporate the liquid refrigerant into a gaseous state, absorb the heat of the cooled object, and achieve a refrigeration effect.

[0008] As a further solution of the utility model, protective gloves can be put on the window, and the operator can operate the reagents and samples in the operating room by wearing the protective gloves, which can isolate contamination and facilitate the operator's work.

[0009] As a further solution of the utility model, the filtering unit includes a purification fan, a pre-filter, a static pressure box and a high-efficiency filter; the purification fan is used to suck external air into the pre-filter; the pre-filter is used to pre-treat the sucked air; the static pressure box is used to change the air flow cross-sectional area, reduce noise, evenly distribute the air volume and reduce dynamic pressure loss; the high-efficiency filter efficiently filters the air to make the air entering the operating room sterile and clean.

[0010] As a further solution of the utility model, universal movable wheels and universal brake wheels are respectively installed at the bottom end of the workbench body, which facilitates the movement and fixation of the clean bench and improves the convenience of movement of the clean bench.

[0011] As a further solution of the utility model, the windows are provided in multiple groups, and the number of the windows is an even number, so as to facilitate simultaneous aseptic operation of multiple operators.

[0012] The above technical solution has the following beneficial effects:

[0013] By installing a refrigeration unit at the lower end of the workbench body, the temperature of the operating room is regulated and controlled so that the operating room is always maintained in a Class 100 pure environment at 4°C during use, which is helpful to maintain the activity of samples and the characteristics of some temperature-sensitive materials or reagents. By opening a window on the glass sliding door and wearing protective gloves, it is convenient for personnel to operate and the operating room is always separated from the external environment during the experiment to avoid contamination of the environment in the operating room and maintain a Class 100 pure environment. In addition, by setting up an isolation transfer room, it is convenient to transfer reagents and samples into the operating room to reduce contamination in the operating room. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0016] Figure 3 It is a front structural schematic diagram of the utility model;

[0017] Figure 4 It is a side structural schematic diagram of the utility model.

[0018] Description of reference numerals:

[0019] 1. Workbench body;

[0020] 2. Filter unit;

[0021] 3. Gas spring;

[0022] 4. Glass sliding door;

[0023] 5. Window;

[0024] 6. Refrigeration unit;

[0025] 7. Operation room;

[0026] 8. Isolation transfer room. DETAILED DESCRIPTION

[0027] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0028] See also Figure 1-Figure 4 The present embodiment provides a clean bench with refrigeration, comprising a workbench body 1, a filter unit 2, a gas spring 3, a glass sliding door 4, a window 5, a refrigeration unit 6, an operating room 7, and an isolation transfer room 8; the filter unit 2 is installed inside the top of the workbench body 1; the front end of the workbench body 1 is rotatably connected to the gas spring 3, and the front end of the gas spring 3 is rotatably connected to the glass sliding door 4; the top of the glass sliding door 4 is hinged to the workbench body 1, and the glass sliding door 4 is provided with a window 5; the refrigeration unit 6 is installed at the top of the workbench body 1, the inside of the workbench body 1 is provided with an operating room 7, and the bottom of the operating room 7 is provided with an isolation transfer room 8.

[0029] In this embodiment, the inlet (front end) and outlet (top end) of the isolation transfer chamber 8 are both provided with openable and closable sealing covers. The outlet of the isolation transfer chamber 8 is located at the bottom end of the operating chamber 7, so that the isolation transfer chamber 8 is in a relatively sealed state. The sealing cover at the top is placed in the operating chamber 7, and the front sealing cover is placed in the external environment. The isolation transfer chamber 8 acts as a transmission channel. When operating reagents are transferred in or out of the operating chamber 7, the front sealing cover or the top sealing cover can be opened, the reagents can be placed in the isolation transfer chamber 8 and then the sealing cover can be closed for temporary storage. The reagents can then be taken out by opening the sealing cover at the other end, thereby realizing isolated transmission and preventing a large amount of external air from directly entering the interior of the operating chamber 7.

[0030] In this embodiment, the refrigeration unit 6 includes a compressor, a condenser, a throttling device and an evaporator; the compressor, the condenser, the throttling device and the evaporator are connected by pipelines; the compressor compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous state to promote the circulation of the refrigerant in the system; the condenser is used to cool the high-temperature and high-pressure gaseous refrigerant into a liquid state, releasing the heat carried by the compression in the compressor; the throttling device is a device for controlling the flow rate of the refrigerant, and controls the flow rate and flow direction of the refrigerant by reducing the pressure and expanding the high-pressure liquid refrigerant into a low-pressure liquid state; the evaporator is a heat exchange device, which is used to evaporate the liquid refrigerant into a gaseous state, absorb the heat of the cooled object, and achieve a refrigeration effect. After refrigeration, the refrigeration unit 6 transmits the cold air upward to the operating room 7 to reduce the temperature in the operating room 7 and ensure that the temperature in the operating room 7 is controlled at about 4°C. The 4°C environment is conducive to maintaining the activity of the sample and the characteristics of some temperature-sensitive materials or reagents.

[0031] In this embodiment, protective gloves may be provided in the window 5. The operator can wear the protective gloves to operate the reagents and samples in the operating room 7, thereby isolating the contamination and facilitating the operation of the operator.

[0032] There are multiple groups of windows 5, and the number of windows 5 is an even number, which is convenient for simultaneous aseptic operation by multiple operators.

[0033] In this embodiment, the filtering unit 2 includes a purification fan, a pre-filter, a static pressure box and a high-efficiency filter; the purification fan is used to suck external air into the pre-filter; the pre-filter is used to pre-treat the sucked air; the static pressure box is used to change the air flow cross-sectional area, reduce noise, evenly distribute the air volume and reduce dynamic pressure loss; the high-efficiency filter efficiently filters the air to make the air entering the operating room 7 sterile and clean. During the filtering process of the filtering unit 2, the air sucked in by the fan is first simply filtered by the pre-filter to achieve a filtration efficiency of about G45, and then pressurized by the static pressure box to enter the high-level filter, so that the filtration efficiency reaches 99.99%@0.5 micron dust count, and then evenly blown into the operating room 7 through the diffuser plate below the high-level filter, and then exhausted to the outside through the desktop, thereby maintaining the positive pressure in the operating room 7 and achieving 100-level purification.

[0034] In this embodiment, universal moving wheels and universal brake wheels are respectively installed at the bottom end of the workbench body 1, which facilitates the movement and fixation of the clean bench and improves the convenience of movement of the clean bench.

[0035] In this embodiment, an ultraviolet lamp is also provided in the operating room 7 to play a role in sterilization and disinfection.

[0036] refer to Figure 1-Figure 4 When in use, put the protective gloves on the window 5, and turn the glass sliding door 4 firmly and close to the front end of the workbench body 1 through the traction of the gas spring 3, and seal with the workbench body 1, so as to control the start of the filter unit 2 and the refrigeration unit 6;

[0037] The external air is inhaled and filtered through the filter unit 2, and the operating room 7 is filled with pure air. At the same time, the refrigeration unit 6 is started to adjust the temperature in the operating room 7 so that it reaches and is maintained at about 4°C. At this time, the condition of the workbench body 1 meets the condition of pure operation, and the sealing cover at the front end of the isolation transfer chamber 8 can be opened, the reagent is placed in and the front sealing cover is reset. Then the operator puts his hands into the operating room 7 through protective gloves, opens the sealing cover at the top of the isolation transfer chamber 8, takes out the reagent and closes the sealing cover, and then operates the reagent. In this process, the 4°C environment is helpful to maintain the activity of the sample and the characteristics of some temperature-sensitive materials or reagents. The filter unit 2 ensures the purity of the entire operation process, which is convenient for ultra-clean operation.

[0038] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0039] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including 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 terminal device. In the absence of further restrictions, the elements defined by the sentence "include..." or "comprise..." do not exclude the existence of other elements in the process, method, article or terminal device including the elements. In addition, in this article, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself.

[0041] Although the above embodiments have been described, once the technical personnel in the field know the basic creative concept, they can make other changes and modifications to these embodiments. Therefore, the above description is only the embodiment of the utility model, and it does not limit the patent protection scope of the utility model. Any equivalent structure or equivalent process transformation made by using the contents of the utility model specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the utility model.

Claims

1. A clean bench with refrigeration, characterized in that: It includes the workbench body, filter unit, gas spring, glass sliding door, window, refrigeration unit, operation room and isolation transfer room; A filter unit is installed inside the top of the workbench body; The front end of the workbench body is rotatably connected to a gas spring, and the front end of the gas spring is rotatably connected to the glass sliding door; The top end of the glass sliding door is hinged to the workbench body, and the glass sliding door is provided with a window; The refrigeration unit is installed on the top of the workbench body. An operating room is arranged inside the workbench body, and an isolation transfer room is arranged at the bottom of the operating room.

2. The clean bench according to claim 1, characterized in that: The inlet and outlet of the isolation transfer chamber are both provided with an openable and closable sealing cover, and the outlet of the isolation transfer chamber is located at the bottom end of the operation chamber.

3. The clean bench according to claim 1, characterized in that: The refrigeration unit includes a compressor, a condenser, a throttling device and an evaporator; The compressor, condenser, throttling device and evaporator are connected by pipelines; The compressor is used to compress the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous state to promote the circulation of the refrigerant in the system; The condenser is used to cool the high-temperature and high-pressure gaseous refrigerant into liquid state, releasing the heat carried by compression in the compressor; The throttling device is a device for controlling the flow rate of the refrigerant, and controls the flow rate and flow direction of the refrigerant by reducing the pressure of the high-pressure liquid refrigerant and expanding it into a low-pressure liquid state; The evaporator is a heat exchange device used to evaporate liquid refrigerant into gaseous state to absorb heat from the object to be cooled.

4. The clean bench according to claim 1, characterized in that: Protective gloves can be placed in the window.

5. The clean bench according to claim 1, characterized in that: The filter unit includes a purification fan, a pre-filter, a static pressure box and a high-efficiency filter; The purification fan is used to draw external air into the pre-filter; The pre-filter is used to pre-treat the inhaled air; The static pressure box is used to change the cross-sectional area of ​​the airflow, reduce noise, evenly distribute the air volume, and reduce dynamic pressure loss; The high-efficiency filter filters the air with high efficiency, making the air entering the operating room sterile and clean.

6. The clean bench according to claim 1, characterized in that: The bottom end of the workbench body is respectively provided with a universal moving wheel and a universal brake wheel.

7. The clean bench according to claim 1, characterized in that: The windows are arranged in multiple groups.

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