CN215115997U - External cooling device for DSC - Google Patents
External cooling device for DSC Download PDFInfo
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- CN215115997U CN215115997U CN202121461656.5U CN202121461656U CN215115997U CN 215115997 U CN215115997 U CN 215115997U CN 202121461656 U CN202121461656 U CN 202121461656U CN 215115997 U CN215115997 U CN 215115997U
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Abstract
The utility model discloses an external cooling device for DSC, include: the heat exchange units are provided with a plurality of coiled medium channels inside, and two ends of each medium channel are respectively a medium inlet and a medium outlet communicated to the outside of the heat exchange units; the heat dissipation fans and the heat exchange units are alternately overlapped, so that both sides of each heat exchange unit are the heat dissipation fans; at least two liquid distributors are communicated with a heat exchanger pipeline used for refrigeration in the DSC and are respectively communicated with each medium inlet and each medium outlet through branch pipes to form a closed loop; the medium pump is arranged on a pipeline connected with the liquid separator and the DSC; and the temperature control system is in signal connection with the medium pump and the cooling fan. The medium cooling speed can be adjusted by controlling the medium flow rate, the running number of the cooling fans and the rotating speed of the cooling fans through the temperature control system, and the adjustment of the cooling speed of the medium in the cooling device is more controllable in the mode that the cooling fans and the cooling units are alternately arranged in a stacked mode, so that the temperature change in the DSC is more accurately controlled.
Description
Technical Field
The utility model relates to a control by temperature change equipment field, concretely relates to an external cooling device for DSC.
Background
Differential Scanning Calorimetry (DSC) is the calculation of a particular thermodynamic or kinetic parameter of a sample by measuring the power difference input to the sample and a reference versus temperature under programmed control of the temperature. The requirement on the control precision of the temperature is very high in the operation process, and for the measurement of special parameters of certain special samples, the cooling device of the instrument cannot meet the precision requirement, so that the external connection of a cooling device is needed to assist in temperature control.
SUMMERY OF THE UTILITY MODEL
In order to improve the temperature control precision of DSC, the utility model provides an external cooling device for DSC.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an external cooling device for a DSC, comprising:
the heat exchange units are provided with a plurality of coiled medium channels inside, and two ends of each medium channel are respectively a medium inlet and a medium outlet communicated to the outside of the heat exchange units;
the heat dissipation fans are alternately overlapped with the heat exchange units, so that both sides of each heat exchange unit are the heat dissipation fans;
at least two liquid distributors are communicated with a heat exchanger pipeline used for refrigeration in the DSC and are respectively communicated with each medium inlet and each medium outlet through branch pipes to form a closed loop;
the medium pump is arranged on a pipeline connected with the liquid separator and the DSC;
and the temperature control system is in signal connection with the medium pump and the cooling fan.
Compared with the prior art, the utility model discloses following beneficial effect has:
the medium cooling speed can be adjusted by controlling the medium flow rate, the running number of the cooling fans and the rotating speed of the cooling fans through the temperature control system, and the adjustment of the cooling speed of the medium in the cooling device is more controllable in the mode that the cooling fans and the cooling units are alternately arranged in a stacked mode, so that the temperature change in the DSC is more accurately controlled.
Drawings
Fig. 1 is a schematic structural view of an external cooling device for DSC according to an embodiment of the present invention.
Fig. 2 is a schematic sectional view of a heat exchange unit structure according to an embodiment of the present invention.
In the above drawings: 1. a heat exchange unit; 2. a fin; 3. a liquid separator; 4. a branch pipe; 5. a heat radiation fan; 6. an air passage; 7. a media channel; 8. a water passage.
Detailed Description
As shown in fig. 1 and fig. 2, the embodiment of the present invention discloses an external cooling device for DSC, including:
the heat exchange units 1 are provided with a plurality of coiled medium channels 7, and two ends of each medium channel 7 are respectively a medium inlet and a medium outlet communicated to the outside of the heat exchange unit 1;
the heat radiation fans 5 are alternately overlapped with the heat exchange units 1, so that the heat radiation fans 5 are arranged on both sides of each heat exchange unit 1;
at least two liquid distributors 3 are communicated with a heat exchanger pipeline used for refrigeration in the DSC, and are respectively communicated with each medium inlet and each medium outlet through a branch pipe 4 to form a closed loop;
the medium pump is arranged on a pipeline connected with the DSC of the liquid separator 3;
and the temperature control system is in signal connection with the medium pump and the cooling fan 5.
Preferably, a plurality of fins 2 are fixed on each surface of the heat exchange unit 1, and a channel which is directly communicated with the edge of the heat exchange unit 1 is formed between every two adjacent fins 2. The fin plates 2 are good in heat conductivity, the heat exchange area is effectively increased, and channels which are formed among the fin plates 2 and directly penetrate through the edges of the heat exchange units 1 are more favorable for air circulation and heat dissipation under the action of the fan.
Preferably, as shown in fig. 2, the heat exchange unit 1 has an air channel 6 communicating with the heat dissipation fans 5 on both sides thereof, and the side wall of the medium channel 7 not facing at least one side of the heat dissipation fan 5 is the outside of the air channel 6 or the outside of the heat exchange unit 1. The air passage 6 provides a circulation passage through which air passes across the heat exchange unit 1 when the radiator fan 5 is operated, while allowing the heat exchange unit 1 to be sufficiently contacted with the flowing air.
Preferably, the heat exchange unit 1 further comprises a water channel 8, and the water channel 8 and the medium channel 7 share the same side wall. The specific heat capacity of water is large, and the cooling efficiency is higher. Water and radiator fan 5 can use alone, also can jointly use, and the degree of cooling of more convenient as required adjustment medium.
Preferably, the side wall of the water channel 8 facing away from the medium channel 7 is the outside of the air channel 6 or the heat exchange unit 1. The two sides of the medium channel 7 exchange heat with water and air respectively, and the water also exchanges heat with the air under the action of the cooling fan 5, and when the two sides operate simultaneously, the structure ensures that the cooling efficiency is higher.
Preferably, the flow rate of the water passage 8 is larger than the flow rate of the medium passage 7. A large amount of water is more favorable for absorbing heat in the medium.
Preferably, the water inlet at the end of the water channel 8 is located at the medium outlet side, and the water inlet is communicated with a water source. When rapid cooling is needed, a tap water pipe with a lower temperature can be directly connected with the water inlet, and the like.
Preferably, the branch pipe 4 is a copper pipe. The better thermal conductivity of copper allows the branch 4 portion to exchange heat with air more easily.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. An external cooling device for a DSC, comprising:
the heat exchange units are provided with a plurality of coiled medium channels inside, and two ends of each medium channel are respectively a medium inlet and a medium outlet communicated to the outside of the heat exchange units;
the heat dissipation fans are alternately overlapped with the heat exchange units, so that both sides of each heat exchange unit are the heat dissipation fans;
at least two liquid distributors are communicated with a heat exchanger pipeline used for refrigeration in the DSC and are respectively communicated with each medium inlet and each medium outlet through branch pipes to form a closed loop;
the medium pump is arranged on a pipeline connected with the liquid separator and the DSC;
and the temperature control system is in signal connection with the medium pump and the cooling fan.
2. An external cooling device for a DSC according to claim 1, characterized in that: and a plurality of fin plates are fixed on each surface of the heat exchange unit, and a channel which is directly communicated with the edge of the heat exchange unit is formed between every two adjacent fin plates.
3. An external cooling device for a DSC according to claim 1 or 2, characterized in that: the heat exchange unit is provided with an air channel communicated with the heat radiation fans at two sides of the heat exchange unit, and the side wall of at least one side of the medium channel, which does not face the heat radiation fans, is an air channel or the outer side of the heat exchange unit.
4. An external cooling device for a DSC according to claim 3, characterized in that: the heat exchange unit further comprises a water channel, and the water channel and the medium channel share the same side wall.
5. An external cooling device for a DSC in accordance with claim 4, wherein: and the outside of the side wall of the water channel, which is far away from the medium channel, is an air channel or the outside of the heat exchange unit.
6. An external cooling device for a DSC according to claim 5, characterized in that: the flow rate of the water channel is larger than that of the medium channel.
7. An external cooling device for a DSC in accordance with claim 4, wherein: and a water inlet at the end part of the water channel is positioned at the medium outlet side, and the water inlet is communicated with a water source.
8. An external cooling device for a DSC according to claim 1, characterized in that: the branch pipe is a copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121461656.5U CN215115997U (en) | 2021-06-29 | 2021-06-29 | External cooling device for DSC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121461656.5U CN215115997U (en) | 2021-06-29 | 2021-06-29 | External cooling device for DSC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215115997U true CN215115997U (en) | 2021-12-10 |
Family
ID=79312070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121461656.5U Active CN215115997U (en) | 2021-06-29 | 2021-06-29 | External cooling device for DSC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215115997U (en) |
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2021
- 2021-06-29 CN CN202121461656.5U patent/CN215115997U/en active Active
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