CN100501273C - Controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology - Google Patents
Controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology Download PDFInfo
- Publication number
- CN100501273C CN100501273C CNB2008100591326A CN200810059132A CN100501273C CN 100501273 C CN100501273 C CN 100501273C CN B2008100591326 A CNB2008100591326 A CN B2008100591326A CN 200810059132 A CN200810059132 A CN 200810059132A CN 100501273 C CN100501273 C CN 100501273C
- Authority
- CN
- China
- Prior art keywords
- valve
- treatment chamber
- liquid
- subzero treatment
- pipe
- 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.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 239000012530 fluid Substances 0.000 title claims abstract description 13
- 238000012545 processing Methods 0.000 title claims description 16
- 238000005516 engineering process Methods 0.000 title claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 182
- 239000007788 liquid Substances 0.000 claims abstract description 115
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 91
- 238000003860 storage Methods 0.000 claims abstract description 32
- 239000002826 coolant Substances 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 239000006200 vaporizer Substances 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 39
- 238000010276 construction Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 47
- 238000009834 vaporization Methods 0.000 description 10
- 230000008016 vaporization Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000012546 transfer Methods 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Abstract
The invention discloses a temperature controllable subzero cooling system based on self-pressure cryogenic fluid delivery technique. The system comprises a liquid nitrogen storage tank, a liquid delivery pipe, a liquid injection pipe, a vaporizer, a self-pressure loop, an air delivery pipe, a self-pressure adjusting valve, a liquid injection valve, a safety valve, a manual pressure relief valve, a liquid delivery valve, an air delivery valve, a pressure sensor P1, a three-way pipe, a pressure sensor P2, a data collector, a computer, a subzero cooling treatment chamber top cover, a liquid level meter, an exhaust pipe, a thermometer, a subzero cooling treatment chamber cabinet, a workpiece to be treated, a rack, a supporting structure, a travelling wheel, a perforated baffle, a cooling medium delivery pipe and a subzero cooling treatment chamber. The invention has the advantages of self-pressure cryogenic cooling medium delivery, no need of extra driving source, liquid and air two subzero cooling processes, convenient temperature dropping rate and treatment temperature adjustment and uniform temperature field in the subzero cooling treatment chamber.
Description
Technical field
The present invention relates to heat treated equipment, relate in particular to a kind of controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology.
Background technology
Subzero treatment claims ultralow temperature to handle again, typically refers to a kind of method of material being handled below-130 ℃, and it is conventional heat treated a kind of extension.Subzero treatment can improve some ferrous metal, non-ferrous metal, metal alloy, carbide, plastics and (comprise nylon, Teflon), the mechanical property of material such as silicate (improving intensity and wearability etc.), increase the service life, stable dimensions etc., and have workpiece easy and simple to handle, survivable, pollution-free and low cost and other advantages, have considerable economic and market prospects.At present, subzero treatment is widely used in fields such as industrial production, Aero-Space cause, military engineering, is mainly used in to handle cutter, mould, measurer, friction parts, low temperature machine components, precision instrumentation part etc.
Subzero treatment chamber in the deep cooling processing system provides sealing, heat insulation environment for the subzero treatment of material.In order to carry cooling medium to the subzero treatment chamber, deep cooling processing system needs transmitting power.Have for deep cooling processing system provides the mode of transmitting power at present: the heater cryogenic liquid spraying is set realizes the supercharging conveying, and use cryogenic liquid pump conveying etc., this dual mode all needs to consume external energy.
Because liquid nitrogen source is wide, low price and pollution-free, be the low-temperature receiver of normal employing of present cryogenic treatment process.Subzero treatment can be divided into liquid processes (liquid cooling medium) and gas method (gaseous cooling medium) according to the difference of use cooling medium states of matter.Liquid processes directly is put into material in the liquid cooling medium exactly, in liquid nitrogen, utilizes the latent heat of vaporization cooling workpiece of cryogenic liquid boiling; The gas rule is that material is placed the cryogenic gaseous cooling medium, in low temperature nitrogen, utilizes the sensible heat of cryogenic gas to come material is handled.The liquid processes thermal shock is big, cooldown rate is fast, make some fragile member rupture easily, and the gas method thermal shock is little, and cooldown rate is relatively slow.This in two method pluses and minuses are respectively arranged, application scenario is separately all arranged.
Cooldown rate is a key factor in the cryogenic technology, and the speed of cooldown rate will directly influence the effect of workpiece subzero treatment.The uniformity of the field of subzero treatment room temperature in addition also is a key factor in the cryogenic treatment process.The uniformity of chamber temperature field affects the uniformity of whole workpiece temperature, and the workpiece part exists temperature difference may cause the contraction inequality and produces temperature stress.When stress is lower than elastic limit of materials, only make part produce reversible elastic distortion, but when certain a part of temperature stress has surpassed the yield limit of material, irreversible torsional deformation then will take place in part.Therefore for subzero treatment, the uniformity of rationally controlling the inner treatment chamber temperature field also is vital.
Summary of the invention
The purpose of this invention is to provide a kind of controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology.
It comprises liquid nitrogen storage tank, woven hose, liquid injection pipe, vaporizer, from boost-up circuit, appendix, from the boost pressure regulation valve, liquid-filling valve, safety valve, manual relief valve, fluid-delivery valve, gas valve, pressure sensor P1, three-way pipe, pressure sensor P2, data collecting instrument, computer, subzero treatment chamber top cover, liquid level gauge, blast pipe, thermometer, subzero treatment chamber body, pending workpiece, rack, supporting construction, move wheel, perforated baffle, the cooling medium carrier pipe, the subzero treatment chamber; Subzero treatment chamber body is the inside and outside wall double-decker, inside and outside wall all is a stainless steel, fill the pearlife heat-insulating material between two walls, subzero treatment chamber body inwall bottom is provided with supporting construction, and top is provided with blast pipe, the top is provided with subzero treatment chamber top cover, bottom half is installed and is moved wheel, and liquid injection pipe, woven hose and appendix insert from the liquid nitrogen storage tank top, and the lower ending opening of liquid injection pipe and woven hose is near tank bottom, and the lower ending opening of appendix is in the low temperature nitrogen near tank top; Draw from tank bottom from boost-up circuit, through vaporizer with behind the boost pressure regulation valve, get back to the top of storage tank; Be respectively equipped with liquid-filling valve and fluid-delivery valve on liquid injection pipe and the woven hose; Appendix is provided with gas valve, and appendix is connected with safety valve one end, manual relief valve one end, the safety valve other end and manually relief valve other end emptying; Woven hose is connected with the cooling medium carrier pipe by three-way pipe with appendix, the cooling medium carrier pipe extend into the bottom of subzero treatment chamber, its opening vertically up, opening part is provided with perforated baffle, the subzero treatment chamber is provided with rack, and the rack top is provided with thermometer, liquid level gauge; Pressure sensor P1, pressure sensor P2, liquid level gauge and thermometer are connected with data collecting instrument, and data collecting instrument is connected with computer.
The controllable temperature deep cooling processing system that the present invention is based on self supercharging cryogenic fluids conveying technology can utilize environment to leak heat by the vaporizer in boost-up circuit and make liquid nitrogen vaporization, thereby the pressure in the lifting liquid nitrogen storage tank is used as the delivering cryogenic fluid power of (comprising the gentle nitrogen of liquid nitrogen), need not additionally to provide drive energy, promptly so-called cryogen is from the supercharging conveying technology; Simultaneously, can be by adjusting from the aperture of boost pressure regulation valve and opening and closing operation such as manual relief valve, regulate the pressure in the liquid nitrogen storage tank easily, the flow velocity of control delivering cryogenic fluid, and then can control the workpiece rate of temperature fall by the heat transfer conditions that changes between pending workpiece and the cooling medium.This system can be applicable to liquid processes and two kinds of cryogenic treatment process of gas method.Specifically, when closing fluid-delivery valve, gas valve, manual relief valve and safety valve (safety valve is normally closed) and opening from the boost pressure regulation valve and realize that liquid nitrogen storage tank is after supercharging, if unlatching fluid-delivery valve, liquid nitrogen in the storage tank can enter the subzero treatment chamber by woven hose and cooling medium carrier pipe, thereby can realize utilizing the liquid processes subzero treatment of immersing in liquid nitrogen workpiece.If entering the liquid nitrogen liquid level of subzero treatment chamber is controlled under the pending workpiece, then can utilize environment to the low temperature nitrogen that the leakage heat of subzero treatment chamber forms liquid nitrogen vaporization workpiece to be carried out subzero treatment by casing, it is the gas method subzero treatment, but this moment, the vaporescence of liquid nitrogen was passive, the flow velocity that does not have artificial active adjustment low temperature nitrogen also just can't initiatively be regulated and control the rate of temperature fall and the treatment temperature of pending workpiece.If finish liquid nitrogen storage tank after supercharging, open gas valve, the low temperature nitrogen at liquid nitrogen storage tank top then can enter the subzero treatment chamber by appendix and cooling medium carrier pipe, method by aforementioned adjusting liquid nitrogen tank inner pressure, in conjunction with the aperture of regulating gas valve, can control the flow velocity of transporting low temperature nitrogen easily, thereby control the rate of temperature fall and the treatment temperature of pending workpiece by the heat transfer conditions that changes low temperature nitrogen and pending workpiece, can realize the gas method cryogenic treatment process of ACTIVE CONTROL, and, the low temperature nitrogen that active is strengthened flows and cooling medium delivery spout place is provided with perforated baffle, can guarantee the uniformity of subzero treatment indoor temperature preferably.But, during the operation of this scheme, be low temperature nitrogen owing to enter the cooling medium of subzero treatment chamber, provide cold by the sensible heat of low temperature nitrogen, because sensible heat is limited, be unfavorable for the fast cooling of subzero treatment chamber.In order to address this problem, can be at first by fluid-delivery valve to a certain amount of liquid nitrogen of bottom, subzero treatment chamber filling, guarantee the liquid nitrogen liquid level below pending workpiece, utilize the thermal capacitance of the latent heat of vaporization cooling subzero treatment casing of liquid nitrogen; Afterwards, again by gas valve to subzero treatment chamber transporting low temperature nitrogen, realize the gas method cryogenic treatment process of ACTIVE CONTROL.As seen, the present invention is based on the controllable temperature deep cooling processing system of self supercharging cryogenic fluids conveying technology, have self supercharging, need not extra additional drives source, can realize two kinds of cryogenic treatment process of liquid processes and gas method, conveniently regulating and controlling rate of temperature fall and treatment temperature, advantage such as subzero treatment room temperature field is even.
Description of drawings
Fig. 1 is based on the controllable temperature deep cooling processing system schematic diagram of self supercharging cryogenic fluids conveying technology;
Fig. 2 is a subzero treatment indoor temperature point position schematic diagram.
The specific embodiment
As shown in Figure 1, the controllable temperature deep cooling processing system of self supercharging cryogenic fluids conveying technology comprises liquid nitrogen storage tank 1, woven hose 2, liquid injection pipe 3, vaporizer 4, from boost-up circuit 5, appendix 6, from boost pressure regulation valve 7, liquid-filling valve 8, safety valve 9, manual relief valve 10, fluid-delivery valve 11, gas valve 12, pressure sensor P113, three-way pipe 14, pressure sensor P215, data collecting instrument 16, computer 17, subzero treatment chamber top cover 18, liquid level gauge 19, blast pipe 20, thermometer 21, subzero treatment chamber body 22, pending workpiece 23, rack 24, supporting construction 25, move wheel 26, perforated baffle 27, cooling medium carrier pipe 28, subzero treatment chamber 29; The casing 22 of subzero treatment chamber is the inside and outside wall double-decker, inside and outside wall all is a stainless steel, fill the pearlife heat-insulating material between two walls, the cabinet wall bottom of subzero treatment chamber is provided with supporting construction 25, top is provided with blast pipe 20, the top is provided with subzero treatment chamber top cover 18, bottom half is installed and is moved wheel 26, liquid injection pipe 3, woven hose 2 and appendix 6 insert from liquid nitrogen storage tank 1 top, the lower ending opening of liquid injection pipe 3 and woven hose 2 is near tank bottom, and the lower ending opening of appendix 6 is in the low temperature nitrogen near tank top; Draw from tank bottom from boost-up circuit 5, through vaporizer 4 with behind boost pressure regulation valve 7, get back to the top of storage tank; Be respectively equipped with liquid-filling valve 8 and fluid-delivery valve 11 on liquid injection pipe 3 and the woven hose 2; Air delivering pipeline 6 is provided with safety valve 9, manual relief valve 10 and gas valve 12; Woven hose 2 is connected with cooling medium carrier pipe 28 by three-way pipe 14 with appendix 6, cooling medium carrier pipe 28 extend into the bottom of subzero treatment chamber 29, its opening vertically up, opening part is provided with perforated baffle 27, subzero treatment chamber 29 is provided with rack 24, and rack 24 tops are provided with thermometer 21, liquid level gauge 19.
This deep cooling processing system can be applicable to liquid processes and gas method cryogenic treatment process.When moving as the liquid processes cryogenic treatment apparatus, at first be under the condition of closing at fluid-delivery valve, gas valve, manual relief valve and safety valve, open from the boost pressure regulation valve, make part liquid nitrogen enter the vaporizer of being located on boost-up circuit from the liquid nitrogen storage tank bottom, leakage heat by environment is this part liquid nitrogen vaporization, the low temperature nitrogen warp that vaporization forms enters the nitrogen space on liquid nitrogen storage tank top from the boost pressure regulation valve, thereby promotes the pressure in the storage tank.When pressure of storage tank reaches preset requirement, open fluid-delivery valve, because tank inner pressure is higher than the subzero treatment chamber, therefore liquid nitrogen enters the subzero treatment chamber from the bottom of liquid nitrogen storage tank through woven hose, fluid-delivery valve, three-way pipe, low-temperature cooling media carrier pipe, after the liquid nitrogen liquid level reaches preset requirement, close from boost pressure regulation valve and fluid-delivery valve, stop filling.Afterwards, pending workpiece is put into the subzero treatment chamber, be immersed in the liquid nitrogen, cover the top cover of subzero treatment chamber.Workpiece directly contacts with liquid nitrogen, is realized that by liquid nitrogen vaporization to the cooling of workpiece, the nitrogen that vaporization forms is full of the above space of liquid nitrogen in the body cold treatment room, by blast pipe discharge system.Because workpiece, the thermal capacitance of putting price and subzero treatment chamber body and environment are to the leakage warm of subzero treatment chamber etc., liquid nitrogen liquid level in the subzero treatment chamber can be passed in time and be descended, in order to guarantee the liquid level requirement of liquid processes subzero treatment, in processing procedure, need in the subzero treatment chamber, to replenish the filling liquid nitrogen.In the liquid nitrogen filling process, can control the flow velocity of liquid nitrogen by regulating fluid-delivery valve, regulate and control pressure in the liquid nitrogen storage tank by regulating from the boost pressure regulation valve.
When this deep cooling processing system can be applicable to the gas method cryogenic treatment process, three kinds of duties are arranged.First kind is the gas method subzero treatment duty of passive type, in its when operation, is as the aforementioned liquids method, finish liquid nitrogen storage tank after being pressurized to preset pressure, open fluid-delivery valve, liquid nitrogen is delivered to bottom, subzero treatment chamber, when the liquid nitrogen liquid level reaches preset height, close from boost pressure regulation valve and fluid-delivery valve, stop the liquid nitrogen filling.Afterwards, pending workpiece is positioned over putting on the price in the subzero treatment chamber, the liquid nitrogen liquid level is lower than the supporting surface of putting price, be that workpiece is among the low temperature nitrogen, because environment is to the indoor leakage warm of subzero treatment, make liquid nitrogen vaporization and constantly form low temperature nitrogen, make the work-piece cools cooling, thereby realize the gas method subzero treatment by the heat transfer between low temperature nitrogen and the workpiece.Low temperature nitrogen in the subzero treatment chamber is discharged system by the blast pipe of portion provided thereon.Because this moment, the mobile of low temperature nitrogen was that environment is facilitated to the hot vaporized liquid nitrogen of the indoor leakage of subzero treatment, rather than artificial adjusting, be the gas method subzero treatment of passive type therefore.In addition, in the subzero treatment process, can in the subzero treatment chamber, replenish the filling liquid nitrogen, remain a certain amount of liquid nitrogen with the bottom that guarantees the subzero treatment chamber.
Second kind is active gas method subzero treatment duty, its when operation, at first at fluid-delivery valve, gas valve, manually relief valve and safety valve are under the condition of closing, and open from the boost pressure regulation valve, finish liquid nitrogen storage tank from supercharging.When pressure of storage tank reaches preset requirement, open gas valve, because tank inner pressure is higher than the subzero treatment chamber, therefore the low temperature nitrogen on liquid nitrogen storage tank top enters the subzero treatment chamber through appendix, gas valve, three-way pipe, low-temperature cooling media carrier pipe, carry out heat exchange with the pending workpiece that is placed on wherein, thereby realize the gas method cryogenic treatment process.Regulate and control pressure in the liquid nitrogen storage tank by regulating from the boost pressure regulation valve, and the aperture of regulating gas valve, can control the flow velocity of low temperature nitrogen easily, and then the heat-transfer intensity between regulation and control nitrogen and the pending workpiece, to reach the purpose of control workpiece rate of temperature fall and treatment temperature.When subzero treatment finishes, close, stop supercharging, simultaneously, close gas valve, stop to subzero treatment chamber transporting low temperature nitrogen from the boost pressure regulation valve.
The third is that gas method subzero treatment duty is preceding two kinds comprehensive, during its operation, at first as the operation of first kind of passive type gas method subzero treatment duty, finish after supercharging at liquid nitrogen storage tank, by opening fluid-delivery valve, in the subzero treatment chamber, carry a certain amount of liquid nitrogen, guarantee that the liquid nitrogen liquid level is lower than pending workpiece, mainly utilize the thermal capacitance of the latent heat of vaporization cooling subzero treatment chamber body of liquid nitrogen.Afterwards, close fluid-delivery valve, open gas valve,, operate identical with second kind of active gas method subzero treatment duty to subzero treatment chamber transporting low temperature nitrogen.When subzero treatment finishes, close, stop supercharging, simultaneously, close gas valve, stop to subzero treatment chamber transporting low temperature nitrogen from the boost pressure regulation valve.In addition, in the subzero treatment process, can realize in the subzero treatment chamber, replenishing the filling liquid nitrogen, switch back active gas method subzero treatment state afterwards again by switching gas valve and fluid-delivery valve.
Comprise the measurement and the collection of temperature, pressure and liquid level data based on the measuring system of the controllable temperature deep cooling processing system of self supercharging cryogenic fluids conveying technology.Temperature survey mainly is in the monitoring subzero treatment process, the temperature variations of subzero treatment chamber interior and pending workpiece.Fig. 2 is subzero treatment indoor temperature meter T1, T2 and T3 position view, wherein T1 and the T3 pending workpiece that is installed in and is placed on the rack is in same plane, with with the measuring workpieces present position around temperature, T2 is installed in pending workpiece inside, is used to measure the interior of articles variations in temperature.Two pressure-measuring-points are arranged in (see figure 1) on appendix and the cooling medium carrier pipe, are used to monitor the pressure in liquid nitrogen storage tank and the carrier pipe.Liquid level gauge is arranged in the subzero treatment chamber, is used for monitoring the liquid nitrogen liquid level of process chamber.All temperature, pressure and level gauging signal are sent into computer and are carried out the user interface demonstration by the data collecting instrument collection, and finish that data are preserved automatically etc.
In addition, be arranged on the perforated baffle at cooling medium delivery spout place, can protect low-temperature cooling media and be directly injected on the pending workpiece, and help its uniform distribution on all directions, to guarantee the temperature homogeneity in the subzero treatment chamber.The safety valve that is arranged on the appendix is used to prevent the liquid nitrogen storage tank superpressure, be arranged on the manual relief valve on the appendix equally, except under the normal operating condition of system, being used to regulate the pressure in the liquid nitrogen storage tank, also can raise unusually in the liquid nitrogen storage tank internal pressure, and under the malfunctioning situation of safety valve, realize the manual emergency pressure release.
Claims (1)
1. controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology, it is characterized in that it comprises liquid nitrogen storage tank (1), woven hose (2), liquid injection pipe (3), vaporizer (4), from boost-up circuit (5), appendix (6), from boost pressure regulation valve (7), liquid-filling valve (8), safety valve (9), manual relief valve (10), fluid-delivery valve (11), gas valve (12), pressure sensor P1 (13), three-way pipe (14), pressure sensor P2 (15), data collecting instrument (16), computer (17), subzero treatment chamber top cover (18), liquid level gauge (19), blast pipe (20), thermometer (21), subzero treatment chamber body (22), pending workpiece (23), rack (24), supporting construction (25), move wheel (26), perforated baffle (27), cooling medium carrier pipe (28), subzero treatment chamber (29); Subzero treatment chamber body (22) is the inside and outside wall double-decker, inside and outside wall all is a stainless steel, fill the pearlife heat-insulating material between two walls, subzero treatment chamber body inwall bottom is provided with supporting construction (25), top is provided with blast pipe (20), the top is provided with subzero treatment chamber top cover (18), bottom half is installed and is moved wheel (26), liquid injection pipe (3), woven hose (2) and appendix (6) insert from liquid nitrogen storage tank (1) top, the lower ending opening of liquid injection pipe (3) and woven hose (2) is near tank bottom, and the lower ending opening of appendix (6) is in the low temperature nitrogen near tank top; Draw from tank bottom from boost-up circuit (5), through vaporizer (4) with behind boost pressure regulation valve (7), get back to the top of storage tank; Be respectively equipped with liquid-filling valve (8) and fluid-delivery valve (11) on liquid injection pipe (3) and the woven hose (2); Appendix (6) is provided with gas valve (12), and appendix (6) is connected with safety valve (9) one ends, manual relief valve (10) one ends, safety valve (9) other end and manually relief valve (10) other end emptying; Woven hose (2) is connected with cooling medium carrier pipe (28) by three-way pipe (14) with appendix (6), cooling medium carrier pipe (28) extend into the bottom of subzero treatment chamber (29), its opening vertically up, opening part is provided with perforated baffle (27), subzero treatment chamber (29) is provided with rack (24), and rack (24) top is provided with thermometer (21), liquid level gauge (19); Pressure sensor P1 (13), pressure sensor P2 (15), liquid level gauge (19) and thermometer (21) are connected with data collecting instrument (16), and data collecting instrument (16) is connected with computer (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100591326A CN100501273C (en) | 2008-01-14 | 2008-01-14 | Controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100591326A CN100501273C (en) | 2008-01-14 | 2008-01-14 | Controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101216233A CN101216233A (en) | 2008-07-09 |
| CN100501273C true CN100501273C (en) | 2009-06-17 |
Family
ID=39622717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100591326A Expired - Fee Related CN100501273C (en) | 2008-01-14 | 2008-01-14 | Controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100501273C (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914663B (en) * | 2010-07-28 | 2012-07-25 | 太原科技大学 | Liquid nitrogen refrigerating type subzero treating device and temperature detecting control method |
| CN102011939A (en) * | 2010-10-28 | 2011-04-13 | 华南理工大学 | System and method for temperature reduction and pressure stabilization of liquefied natural gas storage tank |
| CN102323139A (en) * | 2011-08-09 | 2012-01-18 | 振石集团东方特钢股份有限公司 | Cold insulation testing device for low-temperature impacts |
| CN102426464A (en) * | 2011-09-30 | 2012-04-25 | 中国科学院电工研究所 | Automatic liquid supplementation device of high-temperature superconducting transformer |
| CN102661485B (en) * | 2012-04-25 | 2014-04-02 | 江苏美时医疗技术有限公司 | Liquid nitrogen filling device and liquid nitrogen filling system |
| CN103343202B (en) * | 2013-07-11 | 2015-10-28 | 太原理工大学 | A kind of low temperature nickel Heat Treatment Of Steel quenching cryogenic treating process |
| CN103589840A (en) * | 2013-11-26 | 2014-02-19 | 天津市热处理研究所有限公司 | High-efficiency energy-saving apparatus used for cryogenic treatment |
| CN103983066B (en) * | 2014-05-12 | 2016-07-27 | 南通天工深冷新材料强化有限公司 | A kind of releasable uses liquid nitrogen and liquid helium to carry out the device of pole deep-cool treatment |
| CN105276921A (en) * | 2015-09-09 | 2016-01-27 | 衢州市江氏电子科技有限公司 | Device intelligently controlling liquid nitrogen to refrigerate beer |
| CN107202461A (en) * | 2017-07-15 | 2017-09-26 | 科威嘉尼（江苏）制冷设备有限公司 | A kind of liquid nitrogen control system of liquid nitrogen frozen equipment |
| CN107289327A (en) * | 2017-07-31 | 2017-10-24 | 华中科技大学 | A kind of liquid nitrogen buffering liquid supply device of multichannel rate controlling |
| CN109556337A (en) * | 2018-12-03 | 2019-04-02 | 天津市热处理研究所有限公司 | A kind of dual chamber cryogenic treatment apparatus |
| CN110108532B (en) * | 2019-05-17 | 2024-04-19 | 中国科学院理化技术研究所 | High-low temperature treatment equipment |
| CN111066873A (en) * | 2019-12-20 | 2020-04-28 | 浙江大学舟山海洋研究中心 | Marine fishery source fresh-keeping liquid nitrogen supply system |
| CN112129136B (en) * | 2020-09-04 | 2021-11-16 | 西北工业大学 | Low-temperature cold air generating device capable of stabilizing temperature and pressure and control method |
| CN114011892B (en) * | 2021-10-29 | 2022-07-05 | 华中科技大学 | Temperature-speed-controllable ultrasonic vibration-assisted thin-wall capillary drawing forming device and method |
| CN114370601B (en) * | 2021-12-17 | 2023-08-08 | 华能核能技术研究院有限公司 | Liquid nitrogen injection system, method and application |
| CN115218606B (en) * | 2022-07-25 | 2023-08-25 | 北京中科富海低温科技有限公司 | Low-temperature constant-temperature device and temperature control method |
| CN115445531A (en) * | 2022-08-30 | 2022-12-09 | 嘉兴谱相科技有限公司 | Normal position pond system with portable temperature regulating device |
-
2008
- 2008-01-14 CN CNB2008100591326A patent/CN100501273C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101216233A (en) | 2008-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100501273C (en) | Controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology | |
| CN104677000B (en) | Liquid nitrogen cooling cryogenic device and implementation method for same | |
| CN105571190B (en) | A kind of mechanical oscillation isolation consumes extremely low temp, refrigerating system without liquid helium | |
| CN1942979B (en) | Circulation cooling system for cryogenic cable | |
| CN109297804B (en) | Liquid hydrogen temperature area material mechanics test platform based on low-temperature refrigerator and refrigerant circulation | |
| CN102759231B (en) | Normal-pressure/negative-pressure liquid nitrogen subcooler system | |
| CN202182852U (en) | Mechanical property test system for superconducting material in 77K environment | |
| CN106196878A (en) | A kind of refrigerating device and liquid nitrogen refrigerating method thereof | |
| CN205897645U (en) | Cold -stored refrigeration device | |
| CN108717029A (en) | Low-temperature control system and control method for vacuum QCM | |
| CN103743147A (en) | Superconducting MRI low temperature refrigeration system | |
| CN109781425A (en) | Attitude control engine low-temperature test system under vacuum environment | |
| CN103853203A (en) | Cooling device | |
| AU2020352258A1 (en) | Heat-storage medium conveying system for solar-thermal power plant | |
| CN107311446B (en) | Optical fiber drawing cooling device | |
| KR20180136486A (en) | Gas filling device | |
| CN105675381A (en) | Super-low-vibration helium cold accumulation system and control method thereof | |
| CN219553732U (en) | Immersed battery energy storage system | |
| CN109606941A (en) | Device for cooling is filled in a kind of metering that filling cold insulating box | |
| JP2014500473A (en) | Indirect injection method for managing the supply of chilled liquid to a transport vehicle for the transport of thermal products | |
| CN109524133A (en) | A kind of nuclear power plant's liquid nitrogen ice berg device and its ice berg control method | |
| CN112229105B (en) | Temperature control device and pump drive two-phase fluid loop system | |
| CN203141310U (en) | Low-temperature nitrogen supplying system for use in low-temperature processing | |
| CN112098261B (en) | Device for evaporating liquid metal sodium at high temperature and high pressure and operation method | |
| CN113778149A (en) | Thermostat device capable of carrying out continuous variable temperature control of wide temperature zone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20140114 |