CN102979083A - Liquid nitrogen freezing device - Google Patents

Liquid nitrogen freezing device Download PDF

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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
Authority
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
Application number
CN 201210441704
Other languages
Chinese (zh)
Inventor
王春艳
王爽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Xinda Information Technology Co Ltd
Original Assignee
Shenyang Xinda Information Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenyang Xinda Information Technology Co Ltd filed Critical Shenyang Xinda Information Technology Co Ltd
Priority to CN 201210441704 priority Critical patent/CN102979083A/en
Publication of CN102979083A publication Critical patent/CN102979083A/en
Pending legal-status Critical Current

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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

Liquid nitrogen freezer
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.
CN 201210441704 2012-11-08 2012-11-08 Liquid nitrogen freezing device Pending CN102979083A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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