CN213149569U

CN213149569U - Program cooling instrument

Info

Publication number: CN213149569U
Application number: CN202022786702.0U
Authority: CN
Inventors: 方亮; 于恩华
Original assignee: Shanghai Tianfeng Industrial Co ltd
Current assignee: Shanghai Tianfeng Industrial Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-05-07
Anticipated expiration: 2030-11-26

Abstract

The utility model relates to a procedure cooling appearance, it includes the box, a lateral wall of box sets up to the charging opening, and the box is provided with the chamber door in the articulated chamber door that is provided with of charging opening, is provided with interior chamber in the box, interior chamber and charging opening are linked together, interior indoor being provided with the laboratory bench that is used for placing the sample, interior indoor portion is in the fixed baffle that is provided with of position department that the laboratory bench deviates from the charging opening, the box is deviated from wearing to be equipped with house steward on the lateral wall of charging opening, and house steward has first branch pipe and second branch pipe in the one end intercommunication that is close to the charging opening, and first branch pipe and second branch pipe wear to locate on the lateral wall and the baffle that interior chamber deviates from the: the side wall of the box body, which deviates from the charging hole, is fixedly provided with a driving piece, the output end of the driving piece penetrates through the side wall of the inner chamber, which deviates from the charging hole, and the partition plate, and the fan is fixedly arranged at the position, between the partition plate and the experiment frame, of the output end of the driving piece. This application has the effect that can distribute evenly when the liquid nitrogen gets into inner chamber.

Description

Program cooling instrument

Technical Field

The application relates to the field of biomedical storage equipment, in particular to a program cooling instrument.

Background

The program cooling instrument is widely applied to various fields of light industry, agriculture, medicine, basic biological research and the like, and is used for freezing and storing lymphocytes, tissue banks, bone marrow cells, tumor cells, animal and plant cells, myocardial cells and the like.

The program cooling instrument in the related art comprises a box body, wherein a charging hole is formed in one side wall of the box body, a box door is hinged to the charging hole, an inner chamber is arranged in the box body and communicated with the charging hole, a laboratory rack used for placing samples is arranged in the inner chamber, a partition plate is fixedly arranged at the position, deviating from the charging hole, of the laboratory rack in the inner chamber, a main pipe is arranged on the side wall, deviating from the charging hole, of the box body in a penetrating mode, one end, close to the charging hole, of the main pipe is communicated with a first branch pipe and a second branch pipe, and the first branch pipe and the second branch pipe are arranged on the side wall, deviating from the charging hole, of the inner chamber and the.

During the use, be linked together house steward with the container that has the liquid nitrogen of storing to the test tube that is equipped with the sample that will treat low temperature preservation is put into the experiment frame, closes the chamber door, lets in the house steward with the liquid nitrogen, and the liquid nitrogen passes through house steward, first minute pipe and second minute pipe and gets into the inner chamber, thereby lowers the temperature with the sample on the experiment frame, reaches the effect that the low temperature was preserved.

Aiming at the related technologies, the inventor thinks that the defects that when liquid nitrogen is introduced into the inner cavity, the liquid nitrogen is unevenly distributed, and the cooling effect is poor are easily caused.

SUMMERY OF THE UTILITY MODEL

In order to make liquid nitrogen can distribute evenly when getting into inner chamber, this application provides a procedure cooling appearance.

The program cooling instrument provided by the application adopts the following technical scheme:

a program cooling instrument comprises a box body, wherein a charging hole is formed in one side wall of the box body, a box door is hinged to the box body at the charging hole, an inner chamber is arranged in the box body, the inner chamber is communicated with the charging hole, a laboratory rack for placing samples is arranged in the inner chamber, a partition plate is fixedly arranged in the inner chamber at the position of the laboratory rack departing from the charging hole, a main pipe is arranged on the side wall of the box body, which is far away from the charging opening, in a penetrating way, one end of the main pipe, which is close to the charging opening, is communicated with a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe penetrate through the side wall of the inner chamber, which is far away from the charging hole, and the partition plate, a driving piece is fixedly arranged on the side wall of the box body, which is far away from the charging hole, the output end of the driving piece penetrates through the side wall of the inner chamber, which is away from the charging hole, and the partition plate, and the fan is fixedly arranged at the position, between the partition plate and the experiment frame, of the output end of the driving piece.

Through adopting above-mentioned technical scheme, when the operation of cooling down, start the driving piece, the driving piece passes through output drive fan and rotates, and the liquid nitrogen that leads to from first minute pipe and second minute pipe blows in interior chamber evenly under the stirring of fan to can be at interior intracavity evenly distributed, make the sample of waiting to cool down of each position on the laboratory shelf can cool down fast evenly, be favorable to promoting the cooling effect of procedure cooling appearance.

Preferably, the partition plate is fixedly provided with a heating plate between the fan and the side wall of the inner chamber, which is away from the charging hole, and the output end of the driving piece penetrates through the heating plate.

Through adopting above-mentioned technical scheme, because when the operation of cooling down, need make the temperature of interior chamber be the same temperature with the temperature of sample, when the temperature of sample is higher, can be to the heating plate circular telegram, make the temperature of heating plate rise, start the driving piece this moment, make the heat that the fan gived off the heating plate blow in interior chamber uniformly, when the temperature of interior chamber reaches the temperature equal with the sample, can put into interior chamber with the sample and cool down the operation, so set up, make the work efficiency of the procedure cooling appearance in this application obtain promoting.

Preferably, the first branch pipe and the second branch pipe are communicated with each other and provided with a flow control valve.

Through adopting above-mentioned technical scheme, can control the flow of the liquid nitrogen in first minute pipe and the second minute pipe through the flow control valve to reach the effect of control sample cooling rate, be favorable to promoting the cooling accuracy of the program cooling appearance in this application.

Preferably, an air net is fixedly arranged between the experiment frame and the fan in the inner chamber.

Through adopting above-mentioned technical scheme, the effect of coming with experiment frame and fan separation is played to the wind net, has reduced the probability that the sample on the experiment frame is damaged by the fan.

Preferably, a flow guide ring is fixedly arranged on the side wall of the air net deviating from the experimental frame, the axial surface of the flow guide ring faces the charging hole, and the fan is located in the flow guide ring.

Through adopting above-mentioned technical scheme, when the fan during operation, the water conservancy diversion circle can block towards the air current that the water conservancy diversion circle inside wall flows for most air currents that the fan was made can flow towards the experiment frame, thereby has promoted the efficiency that the fan bloied.

Preferably, a pressure relief pipe penetrates through the side wall of the box body and is communicated with the inner chamber, and a cover plate used for blocking the pressure relief pipe is detachably and fixedly arranged at one end, deviating from the inner chamber, of the box body.

Through adopting above-mentioned technical scheme, when the operation of cooling down, because the liquid nitrogen constantly gets into interior chamber, the pressure of interior chamber will rise to easily lead to interior chamber pressure too big and produce the leakage phenomenon, and then lead to the cooling inhomogeneous, through setting up the pressure release pipe, make the pressure of interior chamber can be balanced with atmospheric pressure.

Preferably, the side wall of the box body, which is deviated from the charging port, is provided with an operation port, the box body is detachably and fixedly provided with a rear door at the operation port, and the main pipe penetrates through the side wall of the rear door.

By adopting the technical scheme, when the mechanisms in the box body need to be repaired, the back door can be disassembled, and the mechanisms in the box body can be repaired through the operation ports, so that the convenience in repairing the mechanisms in the box body is improved.

Preferably, the experiment frame comprises a frame body and a plurality of bearing plates, the bearing plates are symmetrically and fixedly arranged on two opposite side walls of the frame body, the extension direction of the bearing plates is perpendicular to the plane where the charging hole is located, the test tube rack is placed on the two opposite bearing plates and comprises an upper plate and a bottom plate, the upper plate is arranged on one side, close to the top of the box body, of the bottom plate, fixing columns are fixedly arranged between the side walls, close to the upper plate and the bottom plate, and a plurality of placing holes used for inserting test tubes are formed in the side walls of the upper plate.

Through adopting above-mentioned technical scheme, when placing the sample on the experiment frame, take out the test-tube rack from accepting the board, the test tube that will be equipped with the sample this moment inserts downthehole of laying of upper plate, and the test tube will be by the bottom plate bearing, puts back the test-tube rack this moment and accepts the board on, accomplishes the operation of placing the sample promptly.

Preferably, a plurality of vent holes are formed in the side wall, close to each other, of the bottom plate and the upper plate, and the aperture of each vent hole is smaller than that of the placement hole.

Through adopting above-mentioned technical scheme, let in the inner chamber when the liquid nitrogen, entangle when in the experimental frame, the air vent can be passed through to nitrogen gas to can wrap up the test tube more evenly, promote the cooling effect of procedure cooling appearance in this application to the sample.

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

the driving piece is arranged on the side wall of the inner cavity, the fan is fixedly arranged at the output end of the driving piece, and the first branch pipe and the second branch pipe are arranged towards the fan, so that nitrogen flowing out of the first branch pipe and the second branch pipe can be uniformly blown to the inner cavity by the fan, and the cooling effect of the program cooling instrument is improved;

the heating plate is arranged between the fan and the side wall of the inner chamber, which is away from the charging hole, so that the temperature of the inner chamber can be quickly raised, and the temperature of the inner chamber can be quickly kept consistent with a sample with higher temperature;

through wear to establish the pressure release pipe that is linked together with interior chamber on the lateral wall of box, when accomplishing the cooling operation, because of the temperature of interior chamber is lower than the external atmospheric pressure of box, consequently, the atmospheric pressure of interior chamber also is less than the external atmospheric pressure of box, thereby make the chamber door be difficult to open under the effect of atmospheric pressure, interior chamber can be through pressure release pipe and external intercommunication this moment, interior chamber is balanced with external pressure this moment, can open the chamber door, be favorable to promoting the whole application of the procedure cooling appearance in this application.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a sectional view of the case in the embodiment of the present application;

fig. 3 is a schematic structural diagram of the experimental rack according to the embodiment of the present application.

Description of reference numerals: 1. a box body; 2. a box door; 3. a charging port; 4. an inner chamber; 5. an operation port; 6. a rear door; 7. a header pipe; 8. a first branch pipe; 9. a second branch pipe; 10. a flow control valve; 11. a partition plate; 12. a drive member; 13. a fan; 14. heating the plate; 15. an experiment frame; 151. a frame body; 152. a bearing plate; 16. a test tube rack; 161. an upper plate; 162. a base plate; 17. fixing a column; 18. a placement hole; 19. a vent hole; 20. a wind net; 21. a flow guide ring; 22. a pressure relief pipe; 23. a cover plate; 24 insulating material.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a program cooling instrument. Referring to fig. 1 and 2, the program cooling instrument includes a rectangular box body 1, a rectangular charging port 3 is opened on one side wall of the box body 1 along the length direction, and a rectangular box door 2 is hinged on the box body 1 at the position of the charging port 3.

Referring to fig. 2, a rectangular inner chamber 4 is vertically welded to a side wall provided with a charging port 3 inside the box body 1, and a heat insulating material 24 is filled between the inner chamber 4 and the box body 1. The inner chamber 4 is communicated with the charging port 3. A rectangular operation opening 5 is formed in one side wall, deviating from the charging opening 3, of the box body 1, and a rectangular rear door 6 is detachably and fixedly covered on the position of the operation opening 5 of the box body 1 through screws. When the mechanisms in the box body 1 need to be repaired, the rear door 6 can be disassembled, and the mechanisms in the box body 1 can be repaired through the operation opening 5.

Referring to fig. 2, a cylindrical header pipe 7 is vertically penetrated through the side wall of the rear door 6 at a position close to the bottom side of the tank 1, and the header pipe 7 is communicated with the outside liquid nitrogen. One end of the main pipe 7 facing the charging port 3 is communicated with a first branch pipe 8 and a second branch pipe 9 which are in an inverted L shape through a three-way pipe, the first branch pipe 8 and the second branch pipe 9 are symmetrically arranged on two sides of the main pipe 7 along the width direction of the box body 1, and the first branch pipe 8 and the second branch pipe 9 are arranged on the side wall of the inner cavity 4 deviating from the charging port 3. The peripheral side walls of the first branch pipe 8 and the second branch pipe 9 are provided with a flow control valve 10 in communication at a position away from the charging port 3, and in this embodiment, the flow control valve 10 may be an electromagnetic valve. The flow rate of the liquid nitrogen in the first branch pipe 8 and the second branch pipe 9 can be controlled by the flow control valve 10.

Referring to fig. 2, a rectangular partition plate 11 is welded on one side of the side wall of the inner chamber 4, which is far away from the charging port 3 and close to the charging port 3, the partition plate 11 is parallel to the plane of the charging port 3, and the first branch pipe 8 and the second branch pipe 9 penetrate through the partition plate 11. The side wall of the inner chamber 4 facing away from the filling opening 3 is welded, on the side facing the operating opening 5, with an actuating element 12, which actuating element 12 can be a motor in the present embodiment. The fan 13 is welded at the output end of the driving part 12, the fan 13 is composed of five rectangular fan blades, and the five fan blades are evenly circumferentially welded at intervals at one end of the output end far away from the driving part 12.

Referring to fig. 2, a circular heating plate 14 is arranged on the side wall of the partition plate 11 facing the charging port 3, and the heating plate 14 is connected with the partition plate 11 through a welding fixing column 17. The output end of the drive 12 passes through the center of the heating plate 14. When the temperature of the inner chamber 4 is raised, the heating plate 14 is energized to raise the temperature of the heating plate 14, and the driving member 12 is activated to uniformly blow the heat emitted from the heating plate 14 into the inner chamber 4 by the fan 13.

Referring to fig. 2 and 3, a laboratory rack 15 is welded to a position near the charging port 3 inside the inner chamber 4, and the laboratory rack 15 includes two frames 151 formed by rectangular annular frames and a plurality of receiving plates 152 having an L-shaped cross section in the longitudinal direction. Two blocks are welded in the inner chamber 4 at intervals in parallel and are parallel to the charging port 3. The longitudinal direction of the frame 151 is parallel to the longitudinal direction of the inner chamber 4. The receiving plates 152 are symmetrically welded to both sides of the frame 151 in the longitudinal direction at intervals, and the longitudinal direction of the receiving plates 152 is the same as the longitudinal direction of the inner chamber 4.

Referring to fig. 2 and 3, one test tube rack 16 is placed on each of two opposite receiving plates 152 near the top side wall of the box body 1, and in the present embodiment, the number of test tube racks 16 may be three in total. The test tube rack 16 includes a rectangular upper plate 161 and a rectangular bottom plate 162, and the upper plate 161 and the bottom plate 162 have the same shape and size. The upper plate 161 and the bottom plate 162 are symmetrically arranged in parallel, and a plurality of cylindrical fixing posts 17 are welded between the side walls, close to each other, of the upper plate 161 and the bottom plate 162, in this embodiment, the number of the fixing posts 17 may be four, the fixing posts 17 are circumferentially arranged on the edge of the side wall of the bottom plate 162, and the four fixing posts 17 are arranged in a rectangular shape. A plurality of circular placing holes 18 are uniformly and vertically formed in the side wall of the upper plate 161 close to the bottom plate 162, and test tubes can be inserted into the placing holes 18. A plurality of circular vent holes 19 are vertically, uniformly and oppositely arranged on the side wall of the upper plate 161 close to the bottom plate 162, and the aperture of the vent hole 19 is smaller than that of the placing hole 18. When liquid nitrogen is introduced into the inner chamber 4 and entangled in the experimental frame 15, the nitrogen gas can pass through the vent holes 19, thereby being capable of wrapping the test tubes more uniformly.

Referring to fig. 2, a rectangular wind screen 20 is vertically welded to the inner chamber 4 between the experimental frame 15 and the fan 13, and the wind screen 20 is disposed parallel to the partition 11. The mesh on the wind screen 20 is rectangular. The air net 20 serves to block the experimental rack 15 from the fan 13.

Referring to fig. 2, one side of the air grid 20 close to the fan 13 is welded with a circular guide ring 21, the guide ring 21 is coaxially arranged with the output end of the driving part 12, the fan 13 is surrounded by the guide ring 21, and when the fan 13 works, the guide ring 21 can block the airflow flowing towards the inner side wall of the guide ring 21, so that most of the airflow manufactured by the fan 13 can flow towards the experiment frame 15.

Referring to fig. 1 and 2, a cylindrical pressure relief pipe 22 is vertically welded to a longitudinal side wall of the tank body 1 at a position close to the charging port 3, and the pressure relief pipe 22 extends into the inner chamber 4. One end of the pressure relief pipe 22 departing from the inner chamber 4 is covered with a rectangular cover plate 23, and the cover plate 23 is detachably and fixedly arranged on the side wall of the box body 1 through screws. When the box door 2 is difficult to open under the action of atmospheric pressure due to the difference between the internal pressure and the external pressure, the cover plate 23 can be detached, so that the inner chamber 4 can be communicated with the outside through the pressure relief pipe 22, and the pressure of the inner chamber 4 and the outside is balanced, so that the box door 2 can be opened.

The implementation principle of the program cooling instrument in the embodiment of the application is as follows: the program cooling instrument in the application is connected with a computer, so that the program cooling instrument in the application can be controlled through a program set in the computer. When the device is used, software in a computer is opened to confirm parameters, when the parameters in the software are confirmed to be correct, the box door 2 is opened, the test tube rack 16 is taken out of the bearing plate 152, the test tube with the sample is inserted into the placing hole 18 of the upper plate 161, the test tube is supported by the bottom plate 162, the test tube rack 16 is put back on the bearing plate 152, the box door 2 is closed, and the driving piece 12 is started; the computer judges the difference between the temperature of the sample and the set temperature, when the temperature of the sample is lower than the set temperature, the computer controls the flow control valve 10 to be opened, and liquid nitrogen introduced from the first branch pipe 8 and the second branch pipe 9 is uniformly blown into the inner chamber 4 under the stirring of the fan 13, so that the liquid nitrogen can be uniformly distributed in the inner chamber 4, and the samples to be cooled at all positions on the experimental frame 15 can be rapidly and uniformly cooled; when the temperature of the sample is higher than the set temperature, the computer closes the flow control valve and judges the temperature rising speed of the sample, and when the temperature rising speed of the sample is too slow, the computer controls the heating plate 14 to be electrified, so that the temperature of the heating plate 14 rises, and the fan 13 uniformly blows the heat emitted by the heating plate 14 into the inner chamber 4, so that the temperature of the sample rises. After the cooling operation of the sample is completed, the power supply of the computer and the program cooling instrument is closed, the box door 2 is opened, the sample is taken out, and the box door 2 is kept open, so that the inner chamber is naturally cooled.

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 program cooling instrument comprises a box body (1), wherein a charging hole (3) is formed in one side wall of the box body (1), a box door (2) is hinged to the charging hole (3) of the box body (1), an inner chamber (4) is arranged in the box body (1), the inner chamber (4) is communicated with the charging hole (3), a laboratory rack (15) for placing a sample is arranged in the inner chamber (4), a partition plate (11) is fixedly arranged at the position, deviating from the charging hole (3), of the laboratory rack (15) in the inner chamber (4), a main pipe (7) penetrates through the side wall, deviating from the charging hole (3), of the box body (1), one end, close to the charging hole (3), of the main pipe (7) is communicated with a first branch pipe (8) and a second branch pipe (9), the first branch pipe (8) and the second branch pipe (9) penetrate through the side wall, deviating from the charging hole (3), of the inner chamber (4) and the partition plate (11), the method is characterized in that: the side wall of the box body (1) departing from the charging hole (3) is fixedly provided with a driving piece (12), the output end of the driving piece (12) penetrates through the side wall of the inner chamber (4) departing from the charging hole (3) and the partition plate (11), and the position of the output end of the driving piece (12) between the partition plate (11) and the experiment frame (15) is fixedly provided with a fan (13).

2. The programmed temperature reducing instrument of claim 1, wherein: the partition plate (11) is arranged between the fan (13) and the side wall of the inner chamber (4) deviating from the charging hole (3), a heating plate (14) is fixedly arranged, and the output end of the driving piece (12) penetrates through the heating plate (14).

3. The programmed temperature reducing instrument of claim 1, wherein: the first branch pipe (8) and the second branch pipe (9) are communicated with each other to be provided with a flow control valve (10).

4. The programmed temperature reducing instrument of claim 1, wherein: and an air net (20) is fixedly arranged between the experiment frame (15) and the fan (13) in the inner chamber (4).

5. The programmed temperature lowering instrument of claim 4, wherein: the side wall of the air net (20) departing from the experimental frame (15) is fixedly provided with a flow guide ring (21), the axial surface of the flow guide ring (21) faces the charging hole (3), and the fan (13) is located in the flow guide ring (21).

6. The programmed temperature reducing instrument of claim 1, wherein: wear to be equipped with pressure relief pipe (22) on the lateral wall of box (1), pressure relief pipe (22) are linked together with inner chamber (4), and box (1) can be dismantled fixedly at the one end that pressure relief pipe (22) deviate from inner chamber (4) and be provided with apron (23) that are used for shutoff pressure relief pipe (22).

7. The programmed temperature reducing instrument of claim 1, wherein: the side wall of the box body (1) departing from the charging hole (3) is provided with an operation hole (5), the box body (1) is detachably and fixedly provided with a rear door (6) at the operation hole (5), and the header pipe (7) penetrates through the side wall of the rear door (6).

8. The programmed temperature reducing instrument of claim 1, wherein: experiment frame (15) are including framework (151) and a plurality of board (152) of accepting, accept board (152) symmetry fixed setting on framework (151) two relative lateral wall, the extending direction of accepting board (152) is perpendicular with charging hole (3) place plane, placed test-tube rack (16) on two relative board (152) of accepting, test-tube rack (16) are including upper plate (161) and bottom plate (162), upper plate (161) are close to the one side at box (1) top at bottom plate (162), fixed column (17) that are provided with between the lateral wall that upper plate (161) and bottom plate (162) are close to each other, set up a plurality of holes (18) of laying that are used for inserting the test tube on the lateral wall of upper plate (161).

9. The programmed temperature reducing instrument of claim 8, wherein: a plurality of vent holes (19) are formed in the side wall, close to each other, of the bottom plate (162) and the upper plate (161), and the aperture of each vent hole (19) is smaller than that of the placement hole (18).