CN103206821B - The anti-high temperature ammoniacal liquor fluid level control system that waves - Google Patents
The anti-high temperature ammoniacal liquor fluid level control system that waves Download PDFInfo
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- CN103206821B CN103206821B CN201210006261.5A CN201210006261A CN103206821B CN 103206821 B CN103206821 B CN 103206821B CN 201210006261 A CN201210006261 A CN 201210006261A CN 103206821 B CN103206821 B CN 103206821B
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Abstract
Resist and wave high temperature ammoniacal liquor fluid level control system, comprise that gas-liquid separator, high temperature weak aqua ammonia regenerator, evaporimeter form. Gas-liquid separator is connected with high temperature weak aqua ammonia regenerator, and its connecting line is that high temperature weak aqua ammonia down-comer picks out from gas-liquid separator bottom, from the access of high temperature weak aqua ammonia regenerator bottom; Gas-liquid separator is connected with evaporimeter, its connecting line is, fluid level controller liquid flowing tube picks out from controlling liquid level, be connected with fluid level controller cooling coil, fluid level controller cooling coil is closely wrapped on low temperature concentrated ammonia liquor inlet tube, and then be linked in evaporimeter, its spout is aimed at the temperature sensor in evaporimeter. Exothermic process when the present invention utilizes weak aqua ammonia absorbing ammonia, and the variations in temperature of the endothermic process in liquefied ammonia when evaporation, control the aperture of temp .-control valve, reaches efficiently and accurately while controlling liquid level. Liquefied ammonia or weak aqua ammonia are all to flow in pipeline, affect so the present invention is not rocked by boats and ships.
Description
Technical field
What the present invention relates to is a kind of ammoniacal liquor tank level control system, and specifically a kind of supporting waved high temperature ammoniacal liquor level control systemSystem.
Background technology
Along with economic growth, the quickening of the energy and resource consumption, energy-conservation and environmental protection has become world's hot issue.Due to refrigerator, air-conditioning, heat pump industry lot of energy, the CFC and the destruction of HCFC class material to ozone layer that also adopt simultaneouslyThe ecological environment of the earth in effect and greenhouse effects serious threat. Air conditioner refrigerating industry is being faced with severe task at present.So in 1988, " about the Montreal Protocol book of ODS " explicit order specified CFC and HCFCReplace being finally zero green refrigerant by ozone layer destroying coefficient ODP and greenhouse effects coefficient GWP; 1992Year, United Nations Environment Programme Copenhagen meeting on announce that HCFC22 will all stop using in January 1 the year two thousand thirty; ?1997, " capital of a country treaty " focused on the impact on global warming especially, and the HFC class material that therefore ODP coefficient is zero will be by greatlyThe restriction of amplitude ground is used. Along with the adjustment of shipping work mode, operation voyage is gradually far away, and the time lengthens the joint of people to vessel motionEnergy and environmental requirement are more and more higher. Particularly fishing boat, the fresh-keeping mode of band ice of traditional fishing boat is more and more not suitable with existing fishingIndustry is produced fresh-keeping requirement. Therefore, on boats and ships, wide popularization and application new refrigeration technologies has become inevitable.
On boats and ships, existing Refrigeration Technique mainly contains compression-type refrigeration technology and sorption type refrigerating technology. This kind of utilizationFreon, as refrigeration machine, has impact to environment. Meanwhile, along with the continuous rising of diesel-fuel price, make the refrigeration system on shipUse cost significantly improve. And ammonia water absorbing refrigerator is compared with compression refrigerating machine, its major advantage is: Ke YiyongBoats and ships high-temp waste gas drives, and has energy-saving effect; Use natural refrigerant, atmospheric ozone layer, without destruction, is had to environmental protection effectReally; Whole device is the heat-exchange apparatus such as tower, tank except pump, simple in structure, is convenient to processing and manufacturing; Vibration, noise is less; When load regulates in 30～100% scopes, the economy of device does not have significant change; Easy to maintenance, easy to operate, be easy toManagement. The ammonia generation systems of the ammonia water absorption refrigerating machine that existing a large amount of researchers drive marine exhaust has done intentionally a large amount ofThe research of justice. The tank level control system of ammonia water absorption refrigerating machine peculiar to vessel has particularity: the liquid level of traditional ammonia absorption device is generalControl by ball-cock assembly, the control performance of this kind of fluid level controller is easy to be subject to the impact of Ship Swaying.
Through the literature search of prior art is found, patent publication No.: CN1766462, patent name is: Yi ZhongliWith the ammonia-water absorption-type refrigeration device of using waste heat from tail gas, this device is made up of the closed circuit of ammonia spirit and the closed circuit of ammonia,In ammonia spirit closed circuit, pump from solution the cooled high strength ammonia aqueous solution coming, enter being sent back to waste heat generatorIn the process of row heating, take full advantage of regenerator, rectifier coil pipe, generation-absorption heat exchanger and carry and heat up in a steamer device, regeneratorThe heat of assembly, has carried out cold by low temperature ammonia steam out of evaporimeter and condenser liquefied ammonia out returning in coolerReclaim, effectively improved the coefficient of refrigerating performance of this device. The present invention can be applicable to the occasion that has surplus heat, as automobile, fishing boat, generatorThe tail gas of discharging in be equipped with engine, also can be applicable to the tail gas that all combustion systems are discharged, and can also be applied to non-The direct energy source heat form of waste heat occasion. This system adopts falling film type to absorb, and its performance is jolted by boats and ships to be affected. Generator is adoptedWith full-liquid type, its generator performance is subject to liquid fluctuating impact. Liquid level control meeting is subject to the impact that boats and ships rock.
Patent publication No.: CN2903813, patent name is: exhaust absorption type refrigerator for IC engine, this inventionComprise ammoniacal liquor heater, condenser, evaporimeter, absorber, circulating pump and ammoniacal liquor case, the output of heater is by pipeline and coldCondenser connects, and the output of condenser is connected with evaporimeter by pipeline, the diesel engine row on ammoniacal liquor heater and diesel locomotiveTracheae is fixedly connected with and communicates, and on ammoniacal liquor heater, is provided with chimney, and the first output of evaporimeter is by pipeline and ammoniacal liquor caseConnect, the second output of evaporimeter is connected with the input of absorber by pipeline, and the input of absorber also passes through pipelineBe connected with ammoniacal liquor heater, the output of absorber is connected with ammoniacal liquor case by pipeline, and ammoniacal liquor case is by pipeline and ammoniacal liquor heatingDevice connects, and circulating pump is arranged on the pipeline that connects ammoniacal liquor case and ammoniacal liquor heater. Coefficient of refrigerating performance of the present invention is high, for diesel engineAfter supercharging, air is cooling, greatly improves diesel engine performance, for air conditioner refrigeratings such as drivers' cabs, for locomotive machinery compartment skyAdjust,
Cooling. In this device, there is no rectification and purification flow process, ammonia purity is lower, affects its refrigeration. Meanwhile, this dressPut recovery ammonia not yet in effect and rectified heat, coefficient of performance is lower. Ammoniacal liquor case adopts full-liquid type, and its liquid level control meeting is subject to shipThe impact that oceangoing ship rocks is not easy accurate control.
Patent publication No.: CN2668430, patent name is: engine residual heat refrigerating device, engine is in the time of workThe heat energy producing, the ammonia spirit this device liquid reservoir being sent in generator by helix tube is heated. Make it produce ammonia, water steamingGas. After a point gold-plating, smart gold-plating, obtain ammonia steam and the water droplet of higher degree. Water droplet is back to liquid reservoir through return pipe, ammonia steamAfter being condensed into liquid state, spiral cold-finger enters ammonia storage bottle. Be sent to evaporimeter through ammoniacal liquor pump, electrically-controlled valve, in evaporation gas port and splitThe hydrogen that interchanger provides mixes, and liquefied ammonia is diffusion rapidly in hydrogen, and in this process, evaporimeter absorbs amount of heat, reaches systemCold object. Due to ammonia continuous enriching in hydrogen, its quality increases, and under Action of Gravity Field, flows into split interchanger through return duct.Ammonia, hydrogen participate in new circulation separately after obtaining decomposing. The generator of this device is full-liquid type, the boats and ships that it is not suitable for rockingUpper use. This device does not have regenerative apparatus to be effectively used for reclaiming rectified heat, ammonia sensible heat and ammoniacal liquor sensible heat etc., the performance of systemCoefficient is lower. The liquid level control meeting of full-liquid type liquid reservoir is subject to the impact that boats and ships rock, and is difficult to accurate control.
Summary of the invention
The present invention is directed to prior art above shortcomings, a kind of anti-high temperature ammoniacal liquor fluid level control system that waves be provided,Be achieved through the following technical solutions, the present invention includes: gas-liquid separator, high temperature weak aqua ammonia regenerator, evaporimeter, wherein: gas-liquid separator is connected with high temperature weak aqua ammonia regenerator, and the pipeline of its connection is that high temperature weak aqua ammonia down-comer is from gas-liquid separatorBottom picks out, from the access of high temperature weak aqua ammonia regenerator bottom; Gas-liquid separator is connected with evaporimeter, and its connecting line is, liquid levelController liquid flowing tube picks out from controlling liquid level, is connected with fluid level controller cooling coil, and fluid level controller cooling coil is tightBe wrapped on low temperature concentrated ammonia liquor inlet tube, and then be linked in evaporimeter, its spout is aimed at the temperature sensor in evaporimeter.
Described gas-liquid separator comprises: ammonia outlet, fluid level controller liquid flowing tube, high temperature weak aqua ammonia down-comer and containGas high temperature weak aqua ammonia inlet tube, wherein: gassiness high temperature weak aqua ammonia inlet tube is from the access of gas-liquid separator bottom, ammonia outlet pipePick out from gas-liquid separator top, high temperature weak aqua ammonia down-comer picks out from gas-liquid separator bottom, position control liquid level withUnder, fluid level controller liquid flowing tube picks out from the center of the liquid level of control.
Described high temperature weak aqua ammonia regenerator comprises: low temperature concentrated ammonia liquor inlet tube, low temperature concentrated ammonia liquor outlet, backheat dishPipe, high temperature weak aqua ammonia tedge, high temperature weak aqua ammonia outlet, wherein: low temperature concentrated ammonia liquor inlet tube is from high temperature weak aqua ammonia regeneratorAfter the access of top, be connected with reheat coils, reheat coils is connected with low temperature concentrated ammonia liquor outlet, and low temperature concentrated ammonia liquor outlet connectsIn the bottom of high temperature weak aqua ammonia regenerator. High temperature weak aqua ammonia tedge is from the access of high temperature weak aqua ammonia regenerator bottom, the rare ammonia of high temperatureWater outlet pipe is connected to high temperature weak aqua ammonia regenerator top, and its position is below weak aqua ammonia liquid level.
Described evaporimeter comprises: liquefied ammonia inlet tube, evaporator coil, temperature sensor and ammonia outlet pipe, wherein: liquidAmmonia inlet tube enters from the left side of evaporimeter, is then connected with evaporator coil, and evaporator coil is connected with ammonia outlet again, ammoniaGas outlet picks out from evaporimeter right side. Temperature sensor is arranged on evaporimeter internal face, and wall keeps 5mm distance, temperatureSensor is more than evaporimeter liquid level.
Compared to the prior art, its major advantage is embodied in patent of the present invention:
(1) high sensitivity liquid level control, the exothermic process while utilizing weak aqua ammonia absorbing ammonia, and the heat absorption in liquefied ammonia when evaporationThe variations in temperature of process, can promptly control the aperture of temp .-control valve, can reach efficiently and accurately while controlling liquid level, and thisBright movement-less part, has improved the reliability of system.
(2) tank level control system of the present invention is not subject to the impact that boats and ships rock, due to the liquid flowing tube of tank level control system fromThe center of the liquid level of controlling picks out, and liquefied ammonia or weak aqua ammonia are all to flow in pipeline, so this tank level control system is not subject to shipOceangoing ship rocks impact.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below embodiments of the invention are elaborated, the present embodiment carries out under taking technical solution of the present invention as prerequisiteImplement, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following enforcementExample.
As shown in Figure 1, the present embodiment comprises: gas-liquid separator 19, high temperature weak aqua ammonia regenerator 21, evaporimeter 2,Wherein: gas-liquid separator 19 is connected with high temperature weak aqua ammonia regenerator 21, the pipeline of its connection is, high temperature weak aqua ammonia down-comer 14Pick out from gas-liquid separator 19 bottoms, from the 21 bottom accesses of high temperature weak aqua ammonia regenerator; Gas-liquid separator 19 and evaporationDevice 2 connects, and its connecting line is that fluid level controller liquid flowing tube 16 picks out from controlling liquid level, and fluid level controller is coolingCoil pipe 7, fluid level controller cooling coil is closely wrapped on low temperature concentrated ammonia liquor inlet tube 22, and then is linked into evaporimeter 2In, its spout is aimed at the temperature sensor 18 in evaporimeter.
Described gas-liquid separator 19 comprises: ammonia outlet 20, fluid level controller liquid flowing tube 16, high temperature weak aqua ammoniaDown-comer 14 and gassiness high temperature weak aqua ammonia inlet tube 13, wherein: gassiness high temperature weak aqua ammonia inlet tube 13 is from 19 ends of gas-liquid separatorPortion's access, ammonia outlet pipe 20 picks out from gas-liquid separator top, and high temperature weak aqua ammonia down-comer 14 is from gas-liquid separatorPortion picks out, and position is below the liquid level of controlling, and fluid level controller liquid flowing tube 16 picks out from the center of the liquid level of control.
Described high temperature weak aqua ammonia regenerator 21 comprises: low temperature concentrated ammonia liquor inlet tube 22, low temperature concentrated ammonia liquor outlet12, reheat coils 10, high temperature weak aqua ammonia tedge 11, high temperature weak aqua ammonia outlet 9, wherein: low temperature concentrated ammonia liquor inlet tube 22 fromAfter the 21 top accesses of high temperature weak aqua ammonia regenerator, be connected reheat coils and low temperature concentrated ammonia liquor outlet with reheat coils 1012 connect, and low temperature concentrated ammonia liquor outlet is connected to the bottom of high temperature weak aqua ammonia regenerator. High temperature weak aqua ammonia tedge 11 is from high temperatureThe 21 bottom accesses of weak aqua ammonia regenerator, high temperature weak aqua ammonia outlet 9 is connected to high temperature weak aqua ammonia regenerator top, its positionBelow weak aqua ammonia liquid level.
Described evaporimeter 2 comprises: liquefied ammonia inlet tube 1, evaporator coil 3, temperature sensor 18 and ammonia go outMouth pipe 4, wherein: liquefied ammonia inlet tube 1 enters from the left side of evaporimeter 2, is then connected evaporimeter with evaporator coil 3Coil pipe is connected with ammonia outlet 4 again, and ammonia outlet picks out from evaporimeter right side. Temperature sensor 18 is arranged in evaporimeterOn wall, and wall maintenance 5mm distance, temperature sensor is more than evaporimeter liquid level.
As shown in Figure 1, specific works step of the present invention is as follows:
1) liquefied ammonia sweat cooling process: liquefied ammonia enters into the evaporator coil 3 of evaporimeter 2 from liquefied ammonia inlet tube 1,In evaporator coil 3, liquefied ammonia flashes to steam, utilizes the latent heat of vaporization, realizes the object of refrigeration, and ammonia is from ammonia outlet pipe 4Flow out.
2) liquid level control procedure: when the liquid level of gas-liquid separator 19 is during lower than the position of fluid level controller liquid flowing tube, liquidLevel controller liquid flowing tube 16 extracts ammonia from gas-liquid separator 19, and ammonia is condensed into liquefied ammonia in cooling coil 7, and liquefied ammonia entersAfter evaporimeter, be sprayed on sensor 18, because liquefied ammonia is vaporized rapidly, sensor temperature declines rapidly, thereby can control temperatureControl valve 6 reduces aperture. When the liquid level of gas-liquid separator 19 is during higher than the position of fluid level controller liquid flowing tube, fluid level controller is gotLiquid pipe 16 extracts weak aqua ammonia from gas-liquid separator 19, and weak aqua ammonia is cooled in cooling coil 7, and weak aqua ammonia enters intoAfter evaporimeter, be sprayed on sensor 18, because weak aqua ammonia absorbs rapidly moisture, sensor temperature rises rapidly, thereby can controlTemperature-sensing valve 6 processed strengthens aperture.
3) high temperature weak aqua ammonia heat recovery process: low temperature concentrated ammonia liquor enters into the rare ammonia of high temperature from low temperature concentrated ammonia liquor inlet tube 22In water regenerator 21, low temperature concentrated ammonia liquor is interior mobile in reheat coils 10, finally flows out from low temperature concentrated ammonia liquor outlet 12.High temperature weak aqua ammonia enters into the shell side of high temperature weak aqua ammonia regenerator 21 from high temperature weak aqua ammonia tedge 11, then from the rare ammonia of high temperatureIn water outlet pipe 9, flow out. Low temperature concentrated ammonia liquor is heated, and high temperature weak aqua ammonia is cooled, thereby realizes heat recovery process, raising systemThe coefficient of performance.
Claims (4)
1. resist and wave high temperature ammoniacal liquor fluid level control system, comprise gas-liquid separator, high temperature weak aqua ammonia regenerator, evaporimeter, its spyLevy and be: gas-liquid separator is connected with high temperature weak aqua ammonia regenerator, the pipeline of its connection is that high temperature weak aqua ammonia down-comer is from gas-liquidSeparator bottom picks out, from the access of high temperature weak aqua ammonia regenerator bottom; Gas-liquid separator is connected with evaporimeter, its connecting lineThat fluid level controller liquid flowing tube picks out from controlling liquid level, is connected fluid level controller cooler pan with fluid level controller cooling coilPipe is closely wrapped on low temperature concentrated ammonia liquor inlet tube, and then is linked in evaporimeter, and its spout is aimed at the temperature in evaporimeterSensor.
2. according to claim 1 resisting waved high temperature ammoniacal liquor fluid level control system, it is characterized in that: described gas-liquidSeparator, comprises ammonia outlet, fluid level controller liquid flowing tube, high temperature weak aqua ammonia down-comer and gassiness high temperature weak aqua ammonia inlet tube,Wherein: gassiness high temperature weak aqua ammonia inlet tube is from the access of gas-liquid separator bottom, and ammonia outlet pipe connects from gas-liquid separator topGo out, high temperature weak aqua ammonia down-comer picks out from gas-liquid separator bottom, is controlled at the position below liquid level, fluid level controller liquid flowing tubePick out from the center of liquid level of controlling.
3. according to claim 1 resisting waved high temperature ammoniacal liquor fluid level control system, it is characterized in that: described high temperatureWeak aqua ammonia regenerator, comprise low temperature concentrated ammonia liquor inlet tube, low temperature concentrated ammonia liquor outlet, reheat coils, high temperature weak aqua ammonia tedge,High temperature weak aqua ammonia outlet, wherein: low temperature concentrated ammonia liquor inlet tube is from the access of high temperature weak aqua ammonia regenerator top, and reheat coilsConnect, reheat coils is connected with low temperature concentrated ammonia liquor outlet, and low temperature concentrated ammonia liquor outlet is connected to high temperature weak aqua ammonia regeneratorBottom, high temperature weak aqua ammonia tedge is from the access of high temperature weak aqua ammonia regenerator bottom, and it is rare that high temperature weak aqua ammonia outlet is connected to high temperatureAmmoniacal liquor regenerator top, its position is below weak aqua ammonia liquid level.
4. according to claim 1 resisting waved high temperature ammoniacal liquor fluid level control system, it is characterized in that: described evaporimeter,Comprise liquefied ammonia inlet tube, evaporator coil, temperature sensor and ammonia outlet pipe, wherein: liquefied ammonia inlet tube is from a left side for evaporimeterSide enters, and is then connected with evaporator coil, and evaporator coil is connected with ammonia outlet again, and ammonia outlet connects from evaporimeter right sideGo out; Temperature sensor is arranged on evaporimeter internal face, and wall keeps 5mm distance, temperature sensor evaporimeter liquid level withOn.
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| CN201210006261.5A CN103206821B (en) | 2012-01-11 | 2012-01-11 | The anti-high temperature ammoniacal liquor fluid level control system that waves |
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| CN201210006261.5A CN103206821B (en) | 2012-01-11 | 2012-01-11 | The anti-high temperature ammoniacal liquor fluid level control system that waves |
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| CN103206821B true CN103206821B (en) | 2016-05-11 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04340066A (en) * | 1991-01-29 | 1992-11-26 | Hitachi Ltd | Absorption air conditioning system |
| JPH06201211A (en) * | 1992-12-29 | 1994-07-19 | Sanyo Electric Co Ltd | Liquid level control method for absorptive refrigeration machine |
| JPH09189461A (en) * | 1996-01-08 | 1997-07-22 | Daikin Ind Ltd | Absorbing type freezer |
| CN1181805A (en) * | 1995-02-28 | 1998-05-13 | 美国标准公司 | Feed forward control of expansion valve |
| CN1766462A (en) * | 2005-10-31 | 2006-05-03 | 庞启东 | Ammonia absorption type refrigerating apparatus utilizing waste heat of exhaust |
| CN2826320Y (en) * | 2005-02-05 | 2006-10-11 | 张跃 | Coolant liquid level control apparatus for lithium bromide absorption type water chilling and heating unit |
| CN202048734U (en) * | 2011-03-22 | 2011-11-23 | 上海弗格森制冷设备有限公司 | Tube ice maker supplying liquid in stable storage manner |
-
2012
- 2012-01-11 CN CN201210006261.5A patent/CN103206821B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04340066A (en) * | 1991-01-29 | 1992-11-26 | Hitachi Ltd | Absorption air conditioning system |
| JPH06201211A (en) * | 1992-12-29 | 1994-07-19 | Sanyo Electric Co Ltd | Liquid level control method for absorptive refrigeration machine |
| CN1181805A (en) * | 1995-02-28 | 1998-05-13 | 美国标准公司 | Feed forward control of expansion valve |
| JPH09189461A (en) * | 1996-01-08 | 1997-07-22 | Daikin Ind Ltd | Absorbing type freezer |
| CN2826320Y (en) * | 2005-02-05 | 2006-10-11 | 张跃 | Coolant liquid level control apparatus for lithium bromide absorption type water chilling and heating unit |
| CN1766462A (en) * | 2005-10-31 | 2006-05-03 | 庞启东 | Ammonia absorption type refrigerating apparatus utilizing waste heat of exhaust |
| CN202048734U (en) * | 2011-03-22 | 2011-11-23 | 上海弗格森制冷设备有限公司 | Tube ice maker supplying liquid in stable storage manner |
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| CN103206821A (en) | 2013-07-17 |
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Effective date of registration: 20170817 Address after: 214500 No. 118 Xingye Road, Taizhou, Jiangsu, Jingjiang Co-patentee after: Shanghai Jiao Tong University Patentee after: Jiangsu Environment Technology Co., Ltd. Address before: 214500 No. 66, Longjiang Road, Jingjiang Development Zone, Taizhou, Jiangsu Co-patentee before: Shanghai Jiao Tong University Patentee before: Jiangsu Jiangping Air Conditioning Purification Equipment Co.,Ltd. |
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