CN214791610U

CN214791610U - Biochemical laboratory

Info

Publication number: CN214791610U
Application number: CN202120902181.2U
Authority: CN
Inventors: 吴晓军
Original assignee: Beijing Tengdi Construction Engineering Co ltd
Current assignee: Beijing Tengdi Construction Engineering Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-19
Anticipated expiration: 2031-04-26

Abstract

The application relates to a biochemical laboratory, which comprises a heat preservation chamber, an inner container which is arranged in the heat preservation chamber and is made of materials with good heat conductivity, and a purification air conditioning unit for adjusting the temperature in the heat preservation chamber; the purification air conditioning unit comprises a compression condensing unit and an air processing unit; the air processing unit is internally provided with an evaporator, an electric heater and a fan which are matched with the compression condensing unit. This application has the air that reduces after purifying air conditioning unit handles and sweeps the influence that produces experimental environment, improves the advantage of the accuracy of experiment.

Description

Biochemical laboratory

Technical Field

The application relates to the technical field of architectural design, in particular to a biochemical laboratory.

Background

At present, a laboratory is used as a place for scientific experiments and a base for scientific research, and plays a vital role in the development of science and technology; in various experiments, especially biochemical experiments, the method has very strict requirements on experimental conditions such as temperature, humidity, cleanliness and airflow speed in a laboratory.

In the related art, in order to make the temperature in the laboratory reach a predetermined requirement, a purification air conditioning unit is usually installed in the laboratory; the purification air conditioning unit generally comprises a condensing unit for regulating the temperature of air and an air processing unit communicated with the condensing unit for purifying the air after temperature regulation; the air purified by the air treatment unit is blown in the laboratory so as to adjust the temperature in the laboratory.

With respect to the related art in the above, the inventors consider that: in the in-process of experiment is carried out in the reality, for roughly keeping a invariable temperature in making the laboratory, it needs intermittent type nature to operate to purify air conditioning unit, purifies air conditioning unit in operation in-process, can produce irregular air current in the laboratory when the air after adjusting the temperature and purifying blows in the laboratory, changes the air flow rate in the laboratory to cause the influence to the experimental environment in the laboratory, influence the accuracy of experiment.

SUMMERY OF THE UTILITY MODEL

In order to reduce the influence that air after purifying air conditioning unit handles sweeps and produce experimental environment, improve the accuracy of experiment, this application provides a biochemical laboratory.

The biochemical laboratory provided by the application adopts the following technical scheme:

a biochemical laboratory comprises a heat preservation chamber, an inner container which is arranged in the heat preservation chamber and made of materials with good heat conductivity, and a purification air conditioning unit which is used for adjusting the temperature in the heat preservation chamber; the purification air conditioning unit comprises a compression condensing unit and an air processing unit; the air processing unit is internally provided with an evaporator, an electric heater and a fan which are matched with the compression condensing unit.

By adopting the technical scheme, when the experimental environment needs to be adjusted to a set temperature, the purification air conditioning unit is started firstly, the compression condensing unit is matched with the evaporator and the fan to cool the interior of the heat preservation chamber, the electric heater is matched with the fan to heat the interior of the heat preservation chamber when the temperature is too low, the compression condensing unit is matched with the evaporator and the electric heater to maintain the temperature of the interior of the heat preservation chamber in a relatively stable range, and because the inner containers are made of materials with good heat conductivity, the temperature of the interior of the inner containers is adjusted through radiation of walls of the inner containers, and meanwhile, air blown by the fan is isolated; the influence of air purging on the experimental environment after the air conditioning unit is purified can be reduced by arranging the inner container, and the experimental accuracy is improved.

Optionally, a plurality of supporting plates are arranged at intervals at the bottom of the inner container, two ends of each supporting plate are fixedly connected with the inner container and the bottom surface of the heat preservation chamber respectively, and a channel for air circulation is formed between the bottom surface of the inner container and the heat preservation chamber.

By adopting the technical scheme, the supporting plate can enable the inner containers to be in an overhead state, so that six surfaces between the inner containers can be used as radiation surfaces to adjust the temperature between the inner containers, and the efficiency of adjusting the temperature between the inner containers is improved.

Optionally, a connecting channel is arranged between the inner containers and between the heat preservation chambers, one end of the connecting channel is connected with the inner containers, the other end of the connecting channel penetrates out of the heat preservation chambers, and a first sealing door used for sealing the connecting channel is arranged at one end of the inner containers, which penetrates out of the heat preservation chambers.

Through adopting above-mentioned technical scheme, when the experimenter tested between the business turn over inner bag, can open first closed door and get into between the inner bag from the connecting channel in, the heat preservation room is in sealed state all the time to reduce the in-process between staff business turn over inner bag and produce the disturbance to the temperature in the heat preservation room, improve the stability of the interior temperature of heat preservation room, and then improve the stability of the interior temperature of inner bag.

Optionally, be provided with the exhaust pipe with intercommunication between the inner bag, the exhaust pipe communicates with exhaust system be provided with the electrical control valve who is used for controlling the exhaust pipe switching on the exhaust pipe be provided with the air intake between the inner bag be provided with the backpressure valve that is used for controlling the air intake switching on the air intake.

By adopting the technical scheme, after the experiment is finished, the electric regulating valve is opened to open the exhaust pipe, negative pressure is generated in the liner room to pump away harmful gas in the liner room, the residual pressure valve is opened after detecting that the inner part of the liner room is in a negative pressure state, and external air enters the liner room to supplement pressure to the liner room; through setting up exhaust pipe, electrical control valve and backpressure valve, improve the convenience to harmful gas exhaust in the inner bag room.

Optionally, a first absorption tank is arranged between the exhaust pipe and the inner container, two ends of the first absorption tank are respectively communicated with the exhaust pipe and the inner container, and an adsorbent is filled in the first absorption tank.

Through adopting above-mentioned technical scheme, the gas in the inner bag within a definite time can pass through first absorption tank before business turn over exhaust pipe, and the adsorbent in the first absorption tank can purify the interior exhaust gas of inner bag within a definite time, reduces the influence of the interior gas of inner bag to external environment.

Optionally, a second absorption tank is embedded in the air inlet, and an adsorbent is filled in the second absorption tank.

Through adopting above-mentioned technical scheme, the second absorption tank can reduce at the in-process that the residual pressure valve was opened, and the possibility that harmful gas in the inner bag within a definite time passes through the air intake and leaks improves the security.

Optionally, a buffer chamber is arranged on one side outside the heat preservation chamber, the first sealing door is located in the buffer chamber, and a second sealing door used for sealing the buffer chamber is arranged on the buffer chamber.

By adopting the technical scheme, the laboratory staff need enter the buffer chamber before entering the inner container, so that the possibility that the laboratory staff brings pollutants into the inner container when entering and exiting is reduced, and the experimental precision is improved.

Optionally, a control chamber is arranged outside the heat preservation chamber and the buffer chamber.

Through adopting above-mentioned technical scheme, the staff of being convenient for controls each electrical equipment in the laboratory.

Optionally, a temperature control unit is arranged in the purification air conditioning unit, and the temperature control unit includes a temperature sensor, a signal conditioner electrically connected to the temperature sensor, a data acquisition control system electrically connected to the signal conditioner, and a solid state relay SSR electrically connected to the data acquisition control system, and the solid state relay SSR is electrically connected to the electric heater; and a PID operation module is arranged in the data acquisition control system.

By adopting the technical scheme, the temperature sensor can collect the temperature in the heat preservation chamber, the temperature sensor transmits an electric signal to the signal conditioner, the electric signal is amplified and filtered by the signal conditioner and is transmitted to the data acquisition control system, the data acquisition control system compares the actual temperature with the set temperature, the time for the SSR to be conducted in the sampling period is output through the calculation of the PID operation module, and the SSR can control the heating time of the electric heater, so that the temperature in the heat preservation chamber is adjusted; through setting up the temperature control unit, improve convenience and precision to the temperature control in the heat preservation room.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the influence of air purging on the experimental environment after the air conditioning unit is purified can be reduced by arranging the inner container, and the accuracy of the experiment is improved;

2. the efficiency of adjusting the temperature in the inner container is improved by arranging the supporting rods;

3. the exhaust pipe, the electric regulating valve and the residual pressure valve are arranged, so that convenience in discharging harmful gas in the inner container room is improved;

4. through setting up the temperature control unit, improve convenience and precision to the temperature control in the heat preservation room.

Drawings

FIG. 1 is a schematic structural diagram of a biochemical laboratory in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of the inner container in the embodiment of the present application;

FIG. 3 is a sectional view of a biochemical laboratory in the present embodiment;

fig. 4 is a schematic structural view of a temperature control unit in the embodiment itself.

Description of reference numerals: 1. a heat preservation chamber; 10. a second closure door; 2. the inner container; 20. an air inlet; 21. a residual pressure valve; 22. a second canister; 3. purifying the air conditioning unit; 30. compressing a condensing unit; 31. an air handling unit; 4. a support plate; 5. a connecting channel; 50. a first closure door; 6. an exhaust duct; 60. a first absorption tank; 61. an electric control valve; 7. a buffer chamber; 70. a third sealing door; 8. a control room; 9. a temperature control unit; 90. a temperature sensor; 91. a signal conditioner; 92. a data acquisition control system; 93. a Solid State Relay (SSR); 94. an electric heater.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a biochemical laboratory. Referring to fig. 1 and 2, the biochemical laboratory includes a heat-insulating chamber 1, an inner container 2 made of a material having good thermal conductivity and disposed in the heat-insulating chamber 1, and a purification air-conditioning unit 3 for adjusting the temperature in the heat-insulating chamber 1.

Referring to fig. 2 and 3, in order to improve the heat preservation performance and the sealing performance of the heat preservation chamber 1, in the embodiment, the heat preservation chamber 1 is built by adopting a polyurethane plate, and the inner container 2 is enclosed by a stainless steel plate; in order to improve the effect of adjusting the temperature in the liner room 2, a plurality of support plates 4 are arranged at the bottom of the liner room 2, the specific support plates 4 can be made of 316L thick stainless steel plates, the support plates 4 are arranged at intervals, and two ends of the support plates are respectively fixedly connected with the bottom surface of the heat preservation room 1 and the bottom surface of the liner room 2, so that the liner room 2 is in an overhead state, a channel for air circulation is formed between the bottom surface of the liner room 2 and the heat preservation room 1, and the effect of adjusting the temperature of the liner room 2 is improved; in order to improve the sealing performance of the heat preservation chamber 1 and reduce the disturbance of the temperature in the heat preservation chamber 1 caused by the process that an experimenter enters and exits the inner container room 2, a connecting channel 5 is arranged between the inner container room 2 and the heat preservation chamber 1, one end of the connecting channel 5 is communicated with the inner container room 2, the other end of the connecting channel penetrates out of the heat preservation chamber 1, and a first sealing door 50 used for sealing the inner container room 2 is arranged at one end of the connecting channel 5, which penetrates out of the heat preservation chamber 1; in order to facilitate maintenance of the clean air conditioning unit 3, a second closing door 10 is provided on the heat preservation chamber 1.

Referring to fig. 2 and 3, in order to facilitate the discharge of the gas in the inner container room 2 after the test is completed, an exhaust duct 6 communicated with the inner container room 2 is arranged on the inner container room 2, an exhaust system is arranged outside the heat preservation room 1, the exhaust system is in a negative pressure state, and a gas outlet of the exhaust duct 6 is communicated with the exhaust system, so that the inner container room 2 is gradually pumped to the negative pressure state, the air in the inner container room 2 is replaced, and the harmful gas in the inner container room 2 is discharged; a first absorption tank 60 is arranged between the inner container 2 and the exhaust pipe 6, two ends of the first absorption tank 60 are respectively communicated with the inner container 2 and the exhaust pipe 6, and an adsorbent for absorbing harmful gas is filled in the first absorption tank 60, wherein the adsorbent is activated carbon in the embodiment; an electric control valve 61 for controlling the opening and closing of the exhaust duct 6 is arranged on the exhaust duct 6; an air inlet 20 communicated with the outside is arranged on the inner container room 2, a residual pressure valve 21 for controlling the opening and closing of the air inlet 20 is arranged on the air inlet 20, and when the exhaust pipe 6 works, the residual pressure valve 21 is opened to supplement pressure for the inner container room 2; in order to reduce the gas leakage in the inner container 2 in the pressure supplementing process, a second absorption tank 22 is embedded in the air inlet 20, one end of the second absorption tank 22 is communicated with the inner container 2, the other end of the second absorption tank 22 penetrates out of the heat preservation chamber 1, and the second absorption tank 22 is filled with an activated carbon adsorbent.

In order to improve the cleanliness of the inner container room 2 and reduce the possibility that an experimenter brings pollutants into the inner container room 2, a buffer room 7 is arranged at one side of the first sealing door 50 outside the heat preservation room 1, the first sealing door 50 is arranged in the buffer room 7, and a third sealing door 70 is arranged on the buffer room 7; in order to control the facilities in the laboratory, a control room 8 is provided at one side of the heat preservation room 1 and the buffer room 7, and the second closing door 10 and the third closing door 70 are located in the control room 8.

In order to facilitate the control of the temperature in the heat preservation chamber 1, referring to fig. 1 and 4, the purification air conditioning unit 3 includes a compression condensing unit 30 disposed outside the heat preservation chamber 1 and an air handling unit 31 disposed inside the heat preservation chamber 1 and used in cooperation with the compression condensing unit 30; an evaporator assembly, an electric heater 94 and a fan are arranged in the air handling unit 31, and the evaporator and the electric heater 94 which are matched with the compression condensing unit 30 are started in a linkage manner with the fan, so that the aim of adjusting the temperature in the heat preservation chamber 1 is fulfilled; a temperature control unit 9 is arranged in the purification air conditioning unit 3, the temperature control unit 9 comprises a temperature sensor 90 for measuring the temperature in the heat preservation chamber 1, a signal conditioner 91 electrically connected with the temperature sensor 90 and used for amplifying and filtering signals transmitted by the temperature sensor 90, a data acquisition control system 92 communicated with the signal conditioner 91 and used for acquiring and operating data, and a solid state relay SSR93 electrically connected with the data acquisition control system 92, wherein the solid state relay SSR93 is electrically connected with an electric heater 94; the data acquisition control system 92 is provided with a PID operation module, and compares the temperature measured by the temperature sensor 90 with a set value, thereby outputting the time during which the SSR93 should be turned on in the sampling period.

The implementation principle of a biochemical laboratory in the embodiment of the application is as follows: before experiment, an experimenter firstly adjusts the temperature to a set value, starts the purifying air conditioning unit 3, the compression condensing unit 30 is matched with an evaporator and a fan to cool the interior of the heat preservation chamber 1, the temperature sensor 90 can collect the temperature in the heat preservation chamber 1, the temperature sensor 90 transmits an electric signal to the signal conditioner 91, the electric signal is amplified and filtered by the signal conditioner 91 and is transmitted to the data acquisition control system 92, the data acquisition control system 92 compares the actual temperature with the set temperature and outputs the time for switching on the solid state relay SSR93 in a sampling period through the calculation of the PID operation module, the solid state relay SSR93 can control the heating time of the electric heater 94, when the actual temperature is far lower than the set temperature, the solid state relay SSR93 is completely switched on to heat the interior of the heat preservation chamber 1, and as the actual temperature is gradually close to the set temperature, the on-time of the solid state relay SSR93 is gradually reduced, so that the temperature in the heat preservation chamber 1 is maintained to be close to a set value; because the inner container 2 is made of a material with good thermal conductivity, the temperature in the inner container 2 can be adjusted through radiation of the wall of the inner container 2, and the support plate 4 can enable the inner container 2 to be in an overhead state, so that six surfaces of the inner container 2 can be used as radiation to improve the efficiency of adjusting the temperature in the inner container 2.

When the temperature in the inner container room 2 is at a set value, an experimenter enters the buffer chamber 7 and enters the inner container room 2 through the connecting channel 5, and the buffer chamber 7 can reduce the possibility that the experimenter brings pollutants into the inner container room 2 when entering and exiting the inner container room 2; when an experimenter enters the inner container room 2 from the connecting channel 5, the heat preservation room 1 is always in a sealed state, so that the disturbance of the temperature in the heat preservation room 1 in the process that the experimenter enters and exits the inner container room 2 is reduced, and the stability of the temperature in the heat preservation room 1 is improved; after a period of experiment, when the temperature in the liner room 2 changes and the environment in the laboratory needs to be adjusted to a set temperature, the compression condensing unit 30 is matched with the evaporator, the electric heater 94 and the fan to adjust the temperature in the heat preservation room 1, and then the temperature in the liner room 2 is adjusted; 2 can completely cut off the wind that the fan sweeps between the inner bag to reduce the influence to experimental environment production, improve the accuracy of experiment.

After the experiment is accomplished, open electric control valve 61 and make exhaust pipe 6 open, produce the negative pressure in 2 between the inner bag, harmful gas in 2 between the inner bag discharges into exhaust pipe 6 way after the absorption of absorbent in first absorption tank 60, the absorbent can reduce the influence of gas in 2 between the inner bag to external environment, at this in-process, residual pressure valve 21 detects and opens after being in the negative pressure state in 2 between the inner bag, outside air gets into 2 between the inner bag and carries out the pressure compensation to 2 between the inner bag, second absorption tank 22 can reduce the in-process of opening at residual pressure valve 21, the possibility that harmful gas in 2 between the inner bag passes through air intake 20 and leaks, the security is improved. In conclusion, the influence of air purging on the experimental environment after the air is treated by the purifying air conditioning unit 3 can be reduced by arranging the inner container room 2, and the experimental accuracy is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A biochemical laboratory, characterized by: comprises a heat preservation chamber (1), an inner container (2) which is arranged in the heat preservation chamber (1) and is made of materials with good heat conductivity, and a purification air conditioning unit (3) which is used for adjusting the temperature in the heat preservation chamber (1); the purification air conditioning unit (3) comprises a compression condensing unit (30) and an air processing unit (31); an evaporator, an electric heater (94) and a fan which are matched with the compression condensing unit (30) are arranged in the air processing unit (31).

2. A biochemical laboratory according to claim 1, wherein: a plurality of supporting plates (4) are arranged at the bottom of the inner container room (2) at intervals, two ends of each supporting plate (4) are fixedly connected with the inner container room (2) and the bottom surface of the heat preservation chamber (1) respectively, and a channel for air circulation is formed between the bottom surface of the inner container room (2) and the heat preservation chamber (1).

3. A biochemical laboratory according to claim 2, wherein: be provided with between inner bag (2) and heat preservation room (1) interface channel (5), interface channel (5) one end is connected and the other end wears out heat preservation room (1) with between inner bag (2) be provided with and be used for carrying out confined first closed door (50) to interface channel (5) one end that interface channel (5) worn out heat preservation room (1).

4. A biochemical laboratory according to claim 3, wherein: be provided with on the inner bag between (2) with exhaust pipe (6) of inner bag between (2) intercommunication, exhaust pipe (6) and exhaust system intercommunication be provided with electric control valve (61) that are used for controlling exhaust pipe (6) switching on exhaust pipe (6) be provided with air intake (20) on the inner bag between (2) be provided with backpressure valve (21) that are used for controlling air intake (20) switching on air intake (20).

5. A biochemical laboratory according to claim 4, wherein: a first absorption tank (60) with two ends respectively communicated with the exhaust pipe (6) and the liner chamber (2) is arranged between the exhaust pipe (6) and the liner chamber (2), and an adsorbent is filled in the first absorption tank (60).

6. A biochemical laboratory according to claim 4, wherein: a second absorption tank (22) is embedded in the air inlet (20), and an adsorbent is filled in the second absorption tank (22).

7. A biochemical laboratory according to claim 4, wherein: a buffer chamber (7) is arranged on one side outside the heat preservation chamber (1), the first closing door (50) is positioned in the buffer chamber (7), and a second closing door (10) used for closing the buffer chamber (7) is arranged on the buffer chamber (7).

8. A biochemical laboratory according to claim 7, wherein: a control chamber (8) is arranged outside the heat preservation chamber (1) and the buffer chamber (7).

9. A biochemical laboratory according to claim 1, wherein: a temperature control unit (9) is arranged in the purification air conditioning unit (3), the temperature control unit (9) comprises a temperature sensor (90), a signal conditioner (91) electrically connected with the temperature sensor (90), a data acquisition control system (92) electrically connected with the signal conditioner (91) and a solid state relay SSR (93) electrically connected with the data acquisition control system (92), and the solid state relay SSR (93) is electrically connected with an electric heater (94); and a PID operation module is arranged in the data acquisition control system (92).