CN207231024U - A kind of liquid nitrogen refrigerating system - Google Patents
A kind of liquid nitrogen refrigerating system Download PDFInfo
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- CN207231024U CN207231024U CN201721232246.7U CN201721232246U CN207231024U CN 207231024 U CN207231024 U CN 207231024U CN 201721232246 U CN201721232246 U CN 201721232246U CN 207231024 U CN207231024 U CN 207231024U
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- liquid nitrogen
- condenser
- pump
- pipe
- refrigerating system
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Abstract
The utility model discloses a kind of liquid nitrogen refrigerating system, valve group, liquid nitrogen pipe, electrical control cabinet, delivery pipe, connecting tube and pressure valve are adjusted including heat pump, refrigeration pump, liquid nitrogen, the side of the lyophilized preceding case is connected with the first condenser, and the side of first condenser is provided with the second condenser.The utility model has done fully optimized to structure, reduce the process of liquid nitrogen atomization, shorten the connection of pipeline, thereby reduce use cost, low temperature liquid nitrogen heat exchanger can effectively carry out cold and hot exchange, the problem of can preventing gas-liquid mixed from causing frosting to freeze, thermal insulation cotton has the effect of heat-insulation and heat-preservation, insulation can be thermally shielded to liquid nitrogen pipe, and then reduce energy loss, improve refrigerating efficiency, first condenser and being used cooperatively for the second condenser can control condensation rate, and then easy to the amount of accurate control liquid nitrogen refrigerating, the design is easy for installation, energy loss can be reduced, improve refrigerating efficiency.
Description
Technical field
Liquid nitrogen refrigerating system technical field is the utility model is related to, is specially a kind of liquid nitrogen refrigerating system.
Background technology
Liquid nitrogen is the nitrogen of liquid, and nitrogen constitutes the major part of air, and nitrogen is inactive, does not support to burn, liquid nitrogen is
Colourless, tasteless, liquid nitrogen is the liquid form that nitrogen is formed at low temperature, and the boiling point of nitrogen is -196 °C, at normal atmospheric pressure, temperature
If degree will form liquid nitrogen below this, if pressurization, can obtain liquid nitrogen at higher temperatures.
But liquid nitrogen refrigerating system currently on the market is complicated, and function is single, it is impossible to reduces use cost, it is impossible to
Frosting is avoided to freeze, it is impossible to be thermally shielded insulation to liquid nitrogen pipe, it is impossible to reduce energy loss, it is impossible to improve refrigerating efficiency, it is impossible to
Control condensation rate, it is impossible to easy to accurately control the amount of liquid nitrogen refrigerating.
Utility model content
The utility model provides a kind of liquid nitrogen refrigerating system, can effectively solve proposed in the above background technology cannot drop
Low use cost, it is impossible to avoid frosting from freezing, it is impossible to insulation is thermally shielded to liquid nitrogen pipe, it is impossible to reduce energy loss, it is impossible to carry
High refrigerating efficiency, it is impossible to control condensation rate, it is impossible to easy to accurately control the topic of the amount of liquid nitrogen refrigerating.
To achieve the above object, the utility model provides following technical solution：A kind of liquid nitrogen refrigerating system, including heating
Pump, refrigeration pump, liquid nitrogen adjust valve group, liquid nitrogen pipe, safety valve, supporting rack, vacuum pump, electrical control cabinet, delivery pipe, connecting tube,
Pressure valve, the second condenser, the first condenser, low temperature liquid nitrogen heat exchanger, it is lyophilized before case, the first adjusting knob, first switch, total
Switch, pressure gauge and thermal insulation cotton, the side of the lyophilized preceding case is connected with the first condenser, and the bottom of lyophilized preceding case is consolidated
Surely there is supporting rack, the side of first condenser is provided with the second condenser, and is provided with low temperature on front side of the first condenser
Liquid nitrogen heat exchanger, the side of second condenser is provided with electrical control cabinet, and the top of the second condenser is provided with connection
Pipe, the top of the connecting tube are provided with pressure valve, and the side of the electrical control cabinet is provided with vacuum pump, the vacuum pump
Top is connected with delivery pipe, and heat pump is fixed with the lower surface of support frame as described above, and the side of the heat pump is provided with refrigeration
Pump, the side of the refrigeration pump are provided with liquid nitrogen and adjust valve group, and the liquid nitrogen adjusts and is provided with liquid nitrogen pipe on rear side of valve group, described
Safety valve is installed in the one side wall of liquid nitrogen pipe, pressure gauge is installed on the side wall of the electrical control cabinet, the pressure gauge
Bottom is provided with the first adjusting knob, and the bottom of first adjusting knob is provided with first switch, the bottom of the first switch
End is provided with master switch, and the outside of the liquid nitrogen pipe is enclosed with thermal insulation cotton.
Preferably, one end of the refrigeration pump and low temperature liquid nitrogen heat exchanger unicom, the other end adjust valve group unicom with liquid nitrogen.
Preferably, the thermal insulation cotton is a kind of component of glass fiber cotton material.
Preferably, it is described it is lyophilized before circulating pump is set between case and the first condenser.
Preferably, the quantity of first adjusting knob, first switch and pressure gauge is four.
Compared with prior art, the beneficial effects of the utility model：The utility model is scientific and reasonable for structure, side safe to use
Just, fully optimized has been done to structure, reduce liquid nitrogen atomization process, shorten the connection of pipeline, thereby reduce use into
Originally, the problem of low temperature liquid nitrogen heat exchanger can effectively carry out cold and hot exchange, can prevent gas-liquid mixed from causing frosting to freeze, every
Hot heat-preservation cotton has the effect of heat-insulation and heat-preservation, and insulation can be thermally shielded to liquid nitrogen pipe, and then reduces energy loss, improves
Being used cooperatively for refrigerating efficiency, the first condenser and the second condenser can control condensation rate, and then easy to accurate control liquid
The amount of nitrogen refrigeration, the design are easy for installation, it is possible to reduce energy loss, improves refrigerating efficiency.
Brief description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form the limitation to the utility model.
In the accompanying drawings：
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the side view of the utility model electrical control cabinet；
Fig. 3 is the structure diagram of the utility model thermal insulation cotton；
Figure label：1st, heat pump；2nd, refrigeration pump；3rd, liquid nitrogen adjusts valve group；4th, liquid nitrogen pipe；5th, safety valve；6th, supporting rack；
7th, vacuum pump；8th, electrical control cabinet；9th, delivery pipe；10th, connecting tube；11st, pressure valve；12nd, the second condenser；13rd, the first condensation
Device；14th, low temperature liquid nitrogen heat exchanger；15th, case before freezing；16th, the first adjusting knob；17th, first switch；18th, master switch；19th, press
Power table；20th, thermal insulation cotton.
Embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it will be appreciated that described herein excellent
Select embodiment to be only used for describing and explaining the present invention, be not used to limit the utility model.
Embodiment：As shown in Figs. 1-3, the utility model provides a kind of technical solution, a kind of liquid nitrogen refrigerating system, including adds
Heat pump 1, refrigeration pump 2, liquid nitrogen adjust valve group 3, liquid nitrogen pipe 4, safety valve 5, supporting rack 6, vacuum pump 7, electrical control cabinet 8, conveying
Pipe 9, connecting tube 10, pressure valve 11, the second condenser 12, the first condenser 13, low temperature liquid nitrogen heat exchanger 14, it is lyophilized before case 15,
First adjusting knob 16, first switch 17, master switch 18, pressure gauge 19 and thermal insulation cotton 20, the side of case 15 connects before freezing
The first condenser 13 is connected to, and the bottom of lyophilized preceding case 15 is fixed with supporting rack 6, the side of the first condenser 13 is provided with second
Condenser 12, and the front side of the first condenser 13 is provided with low temperature liquid nitrogen heat exchanger 14, the side of the second condenser 12 is provided with
Electrical control cabinet 8, and the top of the second condenser 12 is provided with connecting tube 10, the top of connecting tube 10 is provided with pressure valve 11,
The side of electrical control cabinet 8 is provided with vacuum pump 7, and the top of vacuum pump 7 is connected with delivery pipe 9, consolidates on the lower surface of supporting rack 6
Surely there is heat pump 1, the side of heat pump 1 is provided with refrigeration pump 2, and the side of refrigeration pump 2 is provided with liquid nitrogen and adjusts valve group 3, liquid nitrogen
The rear side for adjusting valve group 3 is provided with liquid nitrogen pipe 4, and safety valve 5, the side wall of electrical control cabinet 8 are provided with the one side wall of liquid nitrogen pipe 4
On pressure gauge 19 is installed, the bottom of pressure gauge 19 is provided with the first adjusting knob 16, and the bottom of the first adjusting knob 16 is set
There is first switch 17, the bottom of first switch 17 is provided with master switch 18, and the outside of liquid nitrogen pipe 4 is enclosed with thermal insulation cotton 20.
In order to make refrigeration pump 2 and 14 unicom of low temperature liquid nitrogen heat exchanger, in the present embodiment, it is preferred that one end of refrigeration pump 2 with
14 unicom of low temperature liquid nitrogen heat exchanger, the other end adjust 3 unicom of valve group with liquid nitrogen.
In order to make thermal insulation cotton 20 that there is the effect of heat-insulation and heat-preservation, in the present embodiment, it is preferred that thermal insulation cotton 20 is
A kind of component of glass fiber cotton material.
In order to improve work efficiency, in the present embodiment, it is preferred that set and follow between 15 and first condenser 13 of case before lyophilized
Ring pumps.
For the ease of the pressure value of the first condenser 13 of display and the second condenser 12, in the present embodiment, it is preferred that first
The quantity of adjusting knob 16, first switch 17 and pressure gauge 19 is four.
The operation principle and process for using of the utility model：The front side of first condenser 13 is provided with low temperature liquid nitrogen heat exchanger
14, low temperature liquid nitrogen heat exchanger 14 can effectively carry out cold and hot exchange, while can prevent gas-liquid mixed from causing what frosting was freezed
Problem, the outside of liquid nitrogen pipe 4 are enclosed with thermal insulation cotton 20, in order to make thermal insulation cotton 20 that there is the effect of heat-insulation and heat-preservation, every
The features such as hot heat-preservation cotton 20 is a kind of component of glass fiber cotton material, and glass fiber cotton has high temperature resistant, nonflammable, and thermal conductivity factor is low,
With good heat insulation and preservation effect, insulation can be thermally shielded to liquid nitrogen pipe 4, and then reduce energy loss, improve system
Cold efficiency, the side of lyophilized preceding case 15 are connected with the first condenser 13, and the side of the first condenser 13 is provided with the second condenser
12, the first condenser 13 and being used cooperatively for the second condenser 12 can control condensation rate, and then easy to accurate control liquid nitrogen
The amount of refrigeration, the design have done fully optimized to structure, reduce the process of liquid nitrogen atomization, shorten the connection of pipeline, and then
Use cost is reduced, is easily installed, while energy loss can be reduced, improves refrigerating efficiency.
Finally it should be noted that：The foregoing is merely the preferred embodiment of the utility model, this reality is not limited to
With new, although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic into
Row equivalent substitution.Where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on, should all
It is included within the scope of protection of this utility model.
Claims (5)
1. a kind of liquid nitrogen refrigerating system, including heat pump（1）, refrigeration pump（2）, liquid nitrogen adjust valve group（3）, liquid nitrogen pipe（4）, safety
Valve（5）, supporting rack（6）, vacuum pump（7）, electrical control cabinet（8）, delivery pipe（9）, connecting tube（10）, pressure valve（11）, second
Condenser（12）, the first condenser（13）, low temperature liquid nitrogen heat exchanger（14）, it is lyophilized before case（15）, the first adjusting knob（16）,
One switch（17）, master switch（18）, pressure gauge（19）And thermal insulation cotton（20）, it is characterised in that：The lyophilized preceding case（15）
Side be connected with the first condenser（13）, and lyophilized preceding case（15）Bottom be fixed with supporting rack（6）, first condenser
（13）Side be provided with the second condenser（12）, and the first condenser（13）Front side be provided with low temperature liquid nitrogen heat exchanger
（14）, second condenser（12）Side be provided with electrical control cabinet（8）, and the second condenser（12）Top be provided with
Connecting tube（10）, the connecting tube（10）Top be provided with pressure valve（11）, the electrical control cabinet（8）Side be provided with
Vacuum pump（7）, the vacuum pump（7）Top be connected with delivery pipe（9）, support frame as described above（6）Lower surface on be fixed with plus
Heat pump（1）, the heat pump（1）Side be provided with refrigeration pump（2）, the refrigeration pump（2）Side be provided with liquid nitrogen adjusting
Valve group（3）, the liquid nitrogen adjusting valve group（3）Rear side be provided with liquid nitrogen pipe（4）, the liquid nitrogen pipe（4）One side wall on install
There is safety valve（5）, the electrical control cabinet（8）Side wall on pressure gauge is installed（19）, the pressure gauge（19）Bottom set
It is equipped with the first adjusting knob（16）, first adjusting knob（16）Bottom be provided with first switch（17）, described first opens
Close（17）Bottom be provided with master switch（18）, the liquid nitrogen pipe（4）Outside be enclosed with thermal insulation cotton（20）.
A kind of 2. liquid nitrogen refrigerating system according to claim 1, it is characterised in that：The refrigeration pump（2）One end with it is low
Warm liquid nitrogen heat exchanger（14）Unicom, the other end adjust valve group with liquid nitrogen（3）Unicom.
A kind of 3. liquid nitrogen refrigerating system according to claim 1, it is characterised in that：The thermal insulation cotton（20）For one kind
The component of glass fiber cotton material.
A kind of 4. liquid nitrogen refrigerating system according to claim 1, it is characterised in that：The lyophilized preceding case（15）It is cold with first
Condenser（13）Between circulating pump is set.
A kind of 5. liquid nitrogen refrigerating system according to claim 1, it is characterised in that：First adjusting knob（16）,
One switch（17）And pressure gauge（19）Quantity be four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721232246.7U CN207231024U (en) | 2017-09-25 | 2017-09-25 | A kind of liquid nitrogen refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721232246.7U CN207231024U (en) | 2017-09-25 | 2017-09-25 | A kind of liquid nitrogen refrigerating system |
Publications (1)
| Publication Number | Publication Date |
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| CN207231024U true CN207231024U (en) | 2018-04-13 |
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ID=61863796
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721232246.7U Active CN207231024U (en) | 2017-09-25 | 2017-09-25 | A kind of liquid nitrogen refrigerating system |
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| CN (1) | CN207231024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028697A (en) * | 2021-03-22 | 2021-06-25 | 昆山浩测仪器有限公司 | Control system for liquid nitrogen refrigeration equipment and liquid nitrogen refrigeration equipment |
-
2017
- 2017-09-25 CN CN201721232246.7U patent/CN207231024U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028697A (en) * | 2021-03-22 | 2021-06-25 | 昆山浩测仪器有限公司 | Control system for liquid nitrogen refrigeration equipment and liquid nitrogen refrigeration equipment |
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