CN102979083A - Liquid nitrogen freezing device - Google Patents
Liquid nitrogen freezing device Download PDFInfo
- Publication number
- CN102979083A CN102979083A CN 201210441704 CN201210441704A CN102979083A CN 102979083 A CN102979083 A CN 102979083A CN 201210441704 CN201210441704 CN 201210441704 CN 201210441704 A CN201210441704 A CN 201210441704A CN 102979083 A CN102979083 A CN 102979083A
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- CN
- China
- Prior art keywords
- freezing
- pipe
- liquid nitrogen
- hole
- sealing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007710 freezing Methods 0.000 title claims abstract description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nODVweCcgaGVpZ2h0PSc4NXB4JyB2aWV3Qm94PScwIDAgODUgODUnPgo8IS0tIEVORCBPRiBIRUFERVIgLS0+CjxyZWN0IHN0eWxlPSdvcGFjaXR5OjEuMDtmaWxsOiNGRkZGRkY7c3Ryb2tlOm5vbmUnIHdpZHRoPSc4NS4wJyBoZWlnaHQ9Jzg1LjAnIHg9JzAuMCcgeT0nMC4wJz4gPC9yZWN0Pgo8cGF0aCBjbGFzcz0nYm9uZC0wIGF0b20tMCBhdG9tLTEnIGQ9J00gNjIuNiw0Mi4wIEwgMjEuMiw0Mi4wJyBzdHlsZT0nZmlsbDpub25lO2ZpbGwtcnVsZTpldmVub2RkO3N0cm9rZTojNDI4NEY0O3N0cm9rZS13aWR0aDoxLjBweDtzdHJva2UtbGluZWNhcDpidXR0O3N0cm9rZS1saW5lam9pbjptaXRlcjtzdHJva2Utb3BhY2l0eToxJyAvPgo8cGF0aCBjbGFzcz0nYm9uZC0wIGF0b20tMCBhdG9tLTEnIGQ9J00gNjIuNiwzMC40IEwgMjEuMiwzMC40JyBzdHlsZT0nZmlsbDpub25lO2ZpbGwtcnVsZTpldmVub2RkO3N0cm9rZTojNDI4NEY0O3N0cm9rZS13aWR0aDoxLjBweDtzdHJva2UtbGluZWNhcDpidXR0O3N0cm9rZS1saW5lam9pbjptaXRlcjtzdHJva2Utb3BhY2l0eToxJyAvPgo8cGF0aCBjbGFzcz0nYm9uZC0wIGF0b20tMCBhdG9tLTEnIGQ9J00gNjIuNiw1My42IEwgMjEuMiw1My42JyBzdHlsZT0nZmlsbDpub25lO2ZpbGwtcnVsZTpldmVub2RkO3N0cm9rZTojNDI4NEY0O3N0cm9rZS13aWR0aDoxLjBweDtzdHJva2UtbGluZWNhcDpidXR0O3N0cm9rZS1saW5lam9pbjptaXRlcjtzdHJva2Utb3BhY2l0eToxJyAvPgo8dGV4dCB4PSc2NC4wJyB5PSc1My42JyBjbGFzcz0nYXRvbS0wJyBzdHlsZT0nZm9udC1zaXplOjIzcHg7Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2ZpbGwtb3BhY2l0eToxO3N0cm9rZTpub25lO2ZvbnQtZmFtaWx5OnNhbnMtc2VyaWY7dGV4dC1hbmNob3I6c3RhcnQ7ZmlsbDojNDI4NEY0JyA+TjwvdGV4dD4KPHRleHQgeD0nNi4xJyB5PSc1My42JyBjbGFzcz0nYXRvbS0xJyBzdHlsZT0nZm9udC1zaXplOjIzcHg7Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2ZpbGwtb3BhY2l0eToxO3N0cm9rZTpub25lO2ZvbnQtZmFtaWx5OnNhbnMtc2VyaWY7dGV4dC1hbmNob3I6c3RhcnQ7ZmlsbDojNDI4NEY0JyA+TjwvdGV4dD4KPC9zdmc+Cg== N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 title claims abstract description 25
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000000994 depressed Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The invention belongs to the field of refrigeration technology, and particularly relates a liquid nitrogen freezing device. The liquid nitrogen freezing device comprises an exhaust pipe, a liquid inlet, an exhaust port, a sealing plate, a liquid supply pipe, through holes, a freezing pipe and a bottom plate, wherein the liquid supply pipe and the exhaust pipe are arranged in the freezing pipe through the sealing plate, the exhaust pipe is provided with the exhaust port which is arranged outside the freezing pipe, the bottom plate is arranged at the end, located in the freezing pipe, of the liquid supply pipe, the other end of the liquid supply pipe penetrates through the sealing plate and is provided with the liquid inlet, and the through holes are evenly distributed in the liquid supply pipe. Each through hole is in the shape of a flat rectangle. According to the liquid nitrogen freezing device, the through holes are evenly distributed in the liquid supply pipe, and therefore uniform freezing effect can be achieved; and since each through hole is arranged to be in the shape of the flat rectangle, the contact area of liquid nitrogen and the air outside is enlarged, and quick-freezing effect and freezing effect are improved.
Description
Technical field
The invention belongs to the Refrigeration Technique field, particularly relate to liquid nitrogen freezer.
Background technology
At present, freezing in geotechnical engineering is operating as: accomplish fluently in advance boring in the stratum of freezing at needs, put into special-purpose frigo in boring, logical liquid nitrogen is depressed at a normal atmosphere in special-purpose frigo, use liquid nitrogen can reach the unapproachable low temperature of bulk freezing, quick freezing as refrigerant., it evaporates in frigo, takes away the amount of heat in soil layer around frigo, makes the soil layer Quick freezing, and its freezing speed is far above the speed of common brine freezing.Existing liquid nitrogen freezer only is provided with through hole in the bottom of feed pipe, and liquid nitrogen ejects from through hole, by the quick freezing of bottom ground, much larger than the freezing speed of ground other parts, easily like this causes freezing inhomogeneous situation and occurs.
Summary of the invention
Technical problem to be solved is to overcome the defect that prior art exists, and provides a kind of freezing efficiency uniform liquid nitrogen freezer.
The technology used in the present invention solution is, comprise stack, inlet, exhaust opening, sealing plate, feed pipe, through hole, freezing pipe and base plate, feed pipe and stack are arranged in freezing pipe by sealing plate, stack is provided with exhaust opening, exhaust opening is arranged on outside freezing pipe, the end of feed pipe in freezing pipe is provided with base plate, and the other end is through sealing plate and be provided with inlet, is evenly distributed with through hole on feed pipe.
Described through hole is flat rectangular.
Compared with prior art, the beneficial effect that the present invention has is: the present invention, by being uniformly distributed through hole on feed pipe, can reach the effect of evenly freezing; Through hole is set to flat rectangular, has increased the contact area of liquid nitrogen and outside air, improves and freezes quick-frozen and freezing efficiency.
The accompanying drawing explanation
Fig. 1 is structure diagram of the present invention.
In figure:
1, inlet, 2, sealing plate, 3, freezing pipe, 4, through hole, 5, feed pipe, 6, base plate, 7, exhaust opening, 8, stack
.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, comprise stack 8, inlet 1, exhaust opening 7, sealing plate 2, feed pipe 5, through hole 4, freezing pipe 3 and base plate 6, feed pipe 5 is arranged in freezing pipe 3 by sealing plate 2 with stack 8, stack 8 is provided with exhaust opening 7, exhaust opening 7 is arranged on outside freezing pipe 3, the end of feed pipe 5 in freezing pipe 3 is provided with base plate 6, and the other end is through sealing plate 2 and be provided with inlet 1, is evenly distributed with through hole 4 on feed pipe 5.Liquid nitrogen is introduced feed pipe 5 by inlet 1, by equally distributed through hole 4 on feed pipe 5, discharges, and heat absorption becomes nitrogen by outside stack 8 dischargers.
Described through hole 4 is flat rectangular.Through hole 4 is set to flat rectangular, has increased the contact area of liquid nitrogen and outside air, improves and freezes quick-frozen and freezing efficiency.
Claims (2)
1. liquid nitrogen freezer, it is characterized in that: comprise stack (8), inlet (1), exhaust opening (7), sealing plate (2), feed pipe (5), through hole (4), freezing pipe (3) and base plate (6), feed pipe (5) is arranged in freezing pipe (3) by sealing plate (2) with stack (8), stack (8) is provided with exhaust opening (7), exhaust opening (7) is arranged on outside freezing pipe (3), the end of feed pipe (5) in freezing pipe (3) is provided with base plate (6), the other end is through sealing plate (2) and be provided with inlet (1), be evenly distributed with through hole (4) on feed pipe (5).
2. liquid nitrogen freezer according to claim 1, it is characterized in that: described through hole (4) is flat rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210441704 CN102979083A (en) | 2012-11-08 | 2012-11-08 | Liquid nitrogen freezing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210441704 CN102979083A (en) | 2012-11-08 | 2012-11-08 | Liquid nitrogen freezing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102979083A true CN102979083A (en) | 2013-03-20 |
Family
ID=47853407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210441704 Pending CN102979083A (en) | 2012-11-08 | 2012-11-08 | Liquid nitrogen freezing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102979083A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060603A (en) * | 2014-07-11 | 2014-09-24 | 天地科技股份有限公司 | Temperature controller device capable of measuring frost heaving pressure |
| CN104790957A (en) * | 2015-05-11 | 2015-07-22 | 中煤邯郸特殊凿井有限公司 | Liquid nitrogen freezing device |
| CN104963334A (en) * | 2015-07-13 | 2015-10-07 | 南京林业大学 | Construction method for utilizing grouting freezing pipe to reinforce and freeze contact passage to restrain frost heaving and thaw collapsing |
-
2012
- 2012-11-08 CN CN 201210441704 patent/CN102979083A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060603A (en) * | 2014-07-11 | 2014-09-24 | 天地科技股份有限公司 | Temperature controller device capable of measuring frost heaving pressure |
| CN104060603B (en) * | 2014-07-11 | 2016-03-16 | 天地科技股份有限公司 | A kind of thermostat device can measuring frost-heaving force |
| CN104790957A (en) * | 2015-05-11 | 2015-07-22 | 中煤邯郸特殊凿井有限公司 | Liquid nitrogen freezing device |
| CN104963334A (en) * | 2015-07-13 | 2015-10-07 | 南京林业大学 | Construction method for utilizing grouting freezing pipe to reinforce and freeze contact passage to restrain frost heaving and thaw collapsing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |