CN1702404A - Refrigerant supplying device - Google Patents
Refrigerant supplying device Download PDFInfo
- Publication number
- CN1702404A CN1702404A CNA2005100738007A CN200510073800A CN1702404A CN 1702404 A CN1702404 A CN 1702404A CN A2005100738007 A CNA2005100738007 A CN A2005100738007A CN 200510073800 A CN200510073800 A CN 200510073800A CN 1702404 A CN1702404 A CN 1702404A
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- Prior art keywords
- refrigerant
- pressure
- heater
- cryogen vessel
- pipe arrangement
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/008—Refrigerant heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/01—Heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
Abstract
The purpose of this invention is to increase the heating efficiency of a liquid refrigerant by relatively reducing the size of a structure for filling a refrigerant container with a gas refrigerant. This refrigerant feeder force-feeds the liquid refrigerant in the refrigerant container 1 by a force-feed pump 2 to supply the liquid refrigerant to a product 5 through a supply pipe 3. A return pipe 9 leading to the refrigerant container 1 after branching from the supply pipe 3 is installed on the downstream side of the force-feed pump 2. The liquid refrigerant flowing in the return pipe 9 is heated and evaporated by a heater contained in a refrigerant heating device 10, and the evaporated gas refrigerant is depressed by a pressure reducing valve contained in the device 10. A pressure gauge 11 measuring a refrigerant pressure in a header is installed in the header 8 installed in the supply pipe 3. A temperature sensor 12 detecting the temperature of the refrigerant container 1 is installed in the refrigerant container. A control panel 13 controls the heater 15 based on the detected refrigerant pressure and the temperature of the container.
Description
Technical field
The present invention relates to filling the refrigerant supplying device that cold-producing medium uses to cooling devices such as air conditioners.
Background technology
In the past, in the cryogen vessel of having taken in the cold-producing medium that cooling devices such as air conditioner fill, cold-producing medium was divided into liquid level and gas blanket.The pairing saturated vapor pressure of the state of this liquid level and gas blanket and environment temperature coincide.Herein, for the cold-producing medium in the cryogen vessel is filled in the cooling device, will from cryogen vessel, draw cold-producing medium.At this moment, shown in Fig. 6 (a) and (b), cryogen vessel 31 absorbs heat on every side from it, and liquid refrigerant is vaporized in cryogen vessel 31.That is, the level of liquid refrigerant (liquid level) descends with having drawn of liquid refrigerant, and the volume of gas refrigerant (gas blanket) increases.The amount that liquid refrigerant will increase by the volume of this gas blanket from obtaining heat on every side, is vaporized again and is replenished.In other words, if can not just can not draw liquid refrigerant from absorbing heat on every side.Therefore, when temperature such as winter hang down, compare when high, draw cold-producing medium from cryogen vessel 31 and want spended time with temperature such as summers.
To this, be as shown in Figure 7 in the past, come heating and cooling agent container 31 with electric heater 32.Also have, as shown in Figure 8, provide warm water such as well water to cryogen vessel 31 by supply equipment 33, by this warm water heating and cooling agent container 31.
Perhaps, as following patent documentation 1 record, the cold-producing medium of the refrigerant loop of utilization filling air conditioner etc. comes the cold-producing medium filling device of heating and cooling agent gas cylinder.This device is provided with the heater that is made of the pipe arrangement with heat conductivity on the cold-producing medium gas cylinder, the refrigerant gas of the high temperature of discharging from the compressor that is located in the refrigerant loop is circulated in heater by feeding tube, thus heating and cooling agent gas cylinder.
Patent documentation 1: the spy opens 2000-346503 communique (2-4 page or leaf, Fig. 1-3)
Summary of the invention
The problem that invention will solve
In above-mentioned prior art shown in Figure 7, in the periphery of cryogen vessel 31 heater 32 is installed and is heated, thereby the equipment scale change is big, the efficiency of heating surface of liquid refrigerant is also bad.Also have, when cryogen vessel 31 was alternate form, because having heaters 32, the replacement operation was pretty troublesome.
Also have, in above-mentioned prior art shown in Figure 8, need put the large-scale supply equipment 33 of warm water to cryogen vessel 31, the efficiency of heating surface of liquid refrigerant is also bad.Also have, use the occasion of metals at cryogen vessel 31, the metal deterioration that is caused by water etc. has just become problem.
On the other hand, in the cold-producing medium filling device of above-mentioned patent documentation 1 record, must heater be set to the cold-producing medium gas cylinder, this also makes equipment scale become big, and the efficiency of heating surface of liquid refrigerant is also bad.Also be that when cryogen vessel 31 was alternate form, because having heaters 32, the replacement operation was pretty troublesome in this occasion.
The present invention In view of the foregoing proposes, and its purpose is to provide a kind of can improve the refrigerant supplying device of the efficiency of heating surface of liquid refrigerant to the formation relative compactization that is used for replenishing with gas refrigerant among the cryogen vessel.
Be used to solve the device of problem
In order to arrive above-mentioned purpose, the invention of claim 1 record is a kind of refrigerant supplying device, liquid refrigerant in the cryogen vessel is by the compression pump force feed, pass through supplying tubing, offer consumer device, it is characterized in that having: branch is carried out from supplying tubing in the downstream at compression pump, by the feedback pipe arrangement of cryogen vessel; Be used to heat the heater of the liquid refrigerant that flows through the feedback pipe arrangement; And be located at the pressure-reducing valve of feedback on the pipe arrangement in the downstream of heater.
According to the formation of foregoing invention, by the action of compression pump, the liquid refrigerant in the cryogen vessel has been drawn, force feed, offers consumer device by supplying tubing.Herein, in the downstream of compression pump, a part that flows through the liquid refrigerant of supplying tubing flows through in the feedback pipe arrangement, returns cryogen vessel.At this moment, make the heater action, thereby the liquid refrigerant that flows through the feedback pipe arrangement just is heated vaporization.Also have, in the downstream of heater, the gas refrigerant of having vaporized is reduced pressure by pressure-reducing valve.Therefore, the gas refrigerant that has reduced pressure returns in the cryogen vessel, replenishes amount owing to the volume that has drawn the liquid refrigerant that has reduced by gas refrigerant in the cryogen vessel.Also have,, in the feedback pipe arrangement, be provided with heater and pressure-reducing valve,, simplified formation so compare with the occasion of heating and cooling agent container in order to replenish cryogen vessel with gas refrigerant.Have, loss on heating is by the amount of having simplified and reduced again.
In order to arrive above-mentioned purpose, the invention of claim 2 record is a kind of refrigerant supplying device, liquid refrigerant in the cryogen vessel is by the compression pump force feed, pass through supplying tubing, offer consumer device, it is characterized in that having: branch is carried out from supplying tubing in the downstream at compression pump, by the feedback pipe arrangement of cryogen vessel; Be used to heat the heater of the liquid refrigerant that flows through the feedback pipe arrangement; Be located at the pressure-reducing valve that feeds back on the pipe arrangement in the downstream of heater; Be used for detecting the pressure-detecting device of the refrigerant pressure of supplying tubing at the upstream side of compression pump; And the control device that is used for controlling heater according to detected refrigerant pressure.
According to the formation of foregoing invention, by the action of compression pump, the liquid refrigerant in the cryogen vessel has been drawn, force feed, offers consumer device by supplying tubing.Herein, in the downstream of compression pump, a part that flows through the liquid refrigerant of supplying tubing flows through in the feedback pipe arrangement, returns cryogen vessel.Also have, at the upstream side of compression pump, the refrigerant pressure in the supplying tubing is detected by pressure-detecting device.At this moment, according to detected refrigerant pressure, control device makes the heater action, thereby the liquid refrigerant that flows through the feedback pipe arrangement is heated, vaporizes.Also have, in the downstream of heater, the gas refrigerant of having vaporized is reduced pressure by pressure-reducing valve.Therefore, the gas refrigerant that has reduced pressure returns in the cryogen vessel, replenishes amount owing to the volume that has drawn the liquid refrigerant that has reduced by gas refrigerant in the cryogen vessel.Also have,, on the feedback pipe arrangement, be provided with heater and pressure-reducing valve,, simplified formation so compare with the occasion of heating and cooling agent container in order to replenish cryogen vessel with gas refrigerant.Have, loss on heating is by the amount of having simplified and reduced again.
In order to arrive above-mentioned purpose, the invention of claim 3 record in the invention of claim 2 record, is characterized in that, control device is the setting pressure of regulation when following at detected refrigerant pressure, makes the heater action.
According to the formation of foregoing invention, except that right requires the effect of 2 inventions of putting down in writing, no longer replenish in the cryogen vessel by gas refrigerant, the refrigerant pressure that is detected by pressure-detecting device will descend.So it is following that this refrigerant pressure becomes setting pressure, control device just makes the heater action.Like this, the liquid refrigerant that flows through the feedback pipe arrangement just is heated, vaporizes, and the gas refrigerant of having vaporized is reduced pressure by pressure-reducing valve.
In order to arrive above-mentioned purpose, the invention of claim 4 record is a kind of refrigerant supplying device, liquid refrigerant in the cryogen vessel is by the compression pump force feed, pass through supplying tubing, offer consumer device, it is characterized in that having: branch is carried out from supplying tubing in the downstream at compression pump, by the feedback pipe arrangement of cryogen vessel; Be used to heat the heater of the liquid refrigerant that flows through the feedback pipe arrangement; Be located at the pressure-reducing valve that feeds back on the pipe arrangement in the downstream of heater; Be used for detecting the pressure-detecting device of the refrigerant pressure of supplying tubing at the upstream side of compression pump; Be used to detect the temperature-detecting device of the temperature of cryogen vessel; And the control device that is used for controlling heater according to detected refrigerant pressure and detected temperature.
According to the formation of foregoing invention, by the action of compression pump, the liquid refrigerant in the cryogen vessel has been drawn, force feed, offers consumer device by supplying tubing.Herein, in the downstream of compression pump, a part that flows through the liquid refrigerant of supplying tubing flows through in the feedback pipe arrangement, returns cryogen vessel.Also have, at the upstream side of compression pump, the refrigerant pressure in the supplying tubing is detected by pressure-detecting device, and the temperature of cryogen vessel is detected by temperature-detecting device.At this moment, according to detected refrigerant pressure, control device makes the heater action, thereby the liquid refrigerant that flows through the feedback pipe arrangement is heated, vaporizes.Also have, in the downstream of heater, the gas refrigerant of having vaporized is reduced pressure by pressure-reducing valve.Therefore, the gas refrigerant that has reduced pressure returns in the cryogen vessel, replenishes amount owing to the volume that has drawn the liquid refrigerant that has reduced by gas refrigerant in the cryogen vessel.On the other hand, according to the temperature of detected cryogen vessel, control device stops the action of heater, thereby the heating of the liquid refrigerant that flows through the feedback pipe arrangement is stopped, and a spot of liquid refrigerant directly returns cryogen vessel.Therefore, the gas refrigerant in the cryogen vessel can not be increased to the amount that needs that surpasses.Also have,, on the feedback pipe arrangement, be provided with heater and pressure-reducing valve,, simplified formation so compare with the occasion of heating and cooling agent container in order to replenish cryogen vessel with gas refrigerant.Have, loss on heating is by the amount of having simplified and reduced again.
In order to arrive above-mentioned purpose, the invention of claim 5 record, in the invention of claim 4 record, it is characterized in that, control device is the setting pressure of regulation when following at detected refrigerant pressure, make heater action, be the design temperature of regulation when above, the action of heater is stopped in detected temperature.
According to the formation of foregoing invention, except that right requires the effect of 4 inventions of putting down in writing, no longer replenish in the cryogen vessel by gas refrigerant, the refrigerant pressure that is detected by pressure-detecting device will descend.So it is following that this refrigerant pressure becomes setting pressure, control device just makes the heater action.Like this, the liquid refrigerant that flows through the feedback pipe arrangement just is heated, vaporizes, and the gas refrigerant of having vaporized is by the pressure-reducing valve decompression and return cryogen vessel.On the other hand, it is above that the temperature of cryogen vessel becomes design temperature, and control device stops the action of heater.Like this, the heating of flowing through the liquid refrigerant of feedback pipe arrangement just stops, and liquid refrigerant directly returns cryogen vessel.
The effect of invention
Invention according to claim 1 record can be used in the formation relative compactization to replenishing with gas refrigerant among the cryogen vessel, can improve the efficiency of heating surface of liquid refrigerant.And, can also can draw cold-producing medium very soon when waiting temperature low in the winter time by heating the gas pressure that improves in the cryogen vessel to returning cold-producing medium.
Invention according to claim 2 record can improve the efficiency of heating surface of liquid refrigerant to the formation relative compactization that is used for replenishing with gas refrigerant among the cryogen vessel.Also have, can offer cryogen vessel to gas refrigerant really as required, the action that provides to the liquid refrigerant of consumer device can be provided.
Invention according to claim 3 record, except that right requires the effect of 2 inventions of putting down in writing, can also become the setting pressure of regulation when following at the refrigerant pressure that detects by pressure-detecting device, gas refrigerant is offered cryogen vessel really, the action that provides to the liquid refrigerant of consumer device can be provided.
Invention according to claim 4 record can improve the efficiency of heating surface of liquid refrigerant to the formation relative compactization that is used for replenishing with gas refrigerant among the cryogen vessel.Also have, can offer cryogen vessel to gas refrigerant really as required, the action that provides to the liquid refrigerant of consumer device can be provided, can prevent that the excessive pressure in the cryogen vessel from rising, can make the heater action efficiently.
Invention according to claim 5 record, except that right requires the effect of 4 inventions of putting down in writing, can also become the setting pressure of regulation when following at the refrigerant pressure that detects by pressure-detecting device, gas refrigerant is offered cryogen vessel really, the action that provides to the liquid refrigerant of consumer device can be provided.Also have, become the design temperature of regulation when above, can stop really can controlling pressure excessive in the cryogen vessel and rising the providing of the gas refrigerant of cryogen vessel in detected temperature.
Description of drawings
Fig. 1 is the summary pie graph of expression refrigerant supplying device.
Fig. 2 is the details drawing of the formation etc. of expression heating device for refrigerant.
Fig. 3 is the front view of the outward appearance of expression heater.
Fig. 4 is the schematic diagram of the action of expression heater.
Fig. 5 is the sequential chart of the change of the expression various parameters relevant with heater control.
Fig. 6 is the key diagram of expression with the cryogen vessel of precedent.
Fig. 7 is the key diagram of expression with the heater of the cryogen vessel of precedent.
Fig. 8 is the key diagram of expression with the heater of the cryogen vessel of precedent.
The specific embodiment
Below, describe the embodiment that refrigerant supplying device of the present invention has been specialized in detail with reference to accompanying drawing.
Fig. 1 represents the summary pie graph of the refrigerant supplying device of this embodiment.In this refrigerant supplying device, the liquid refrigerant in the cryogen vessel 1, is provided, fills to the goods (air conditioner) 5 as consumer device by supplying tubing 3 and metering implanter 4 by compression pump 2 force feeds.Refrigerant supplying device has the 1st pressure gauge 6 of the pressure (discharge pressure) of the liquid refrigerant that is used for measuring supplying tubing 3 in the downstream of compression pump 2.The discharge pressure of being measured by the 1st pressure gauge 6 is sent to compression pump 2 as control signal.In this embodiment, the discharge pressure of measuring with the 1st pressure gauge 6 is lower than the setting pressure of regulation, represents that the control signal of this reduction just is sent to compression pump 2.Compression pump 2 receives this control signal and auto-action.Like this, by compression pump 2 force feeds, it is certain that the pressure of the liquid refrigerant that provides to goods 5 just keeps.
On the supplying tubing 3 between cryogen vessel 1 and the compression pump 2, be provided with the 1st open and close valve 7 and water tank (ヘ Star one) 8.The 1st open and close valve 7 is used for as required and the flowing of liquid refrigerant of blocking supplying tubing 3.Water tank 8 has the volume of regulation, in case after gathering, makes its mobile stablizing from the liquid refrigerant that cryogen vessel 1 draws, just allow compression pump 2 suck.
Refrigerant supplying device has: in the downstream of compression pump 2, carry out branch from supplying tubing 3, by the feedback pipe arrangement 9 of cryogen vessel 1; Be used to heat the heating device for refrigerant 10 of the liquid refrigerant that flows through feedback pipe arrangement 9; At the upstream side of compression pump 2, be used to detect supplying tubing 3, i.e. the 2nd pressure gauge 11 of the conduct pressure-detecting device of the present invention of the pressure (tank pressure) of the liquid refrigerant in the water tank 8; Be used to detect the temperature sensor 12 of conduct temperature-detecting device of the present invention of the temperature (vessel temp) of cryogen vessel 1; And control panel 13.In the downstream of heating device for refrigerant 10, on feedback pipe arrangement 9, be provided with the 2nd open and close valve 14.The 2nd open and close valve 14 is used for as required and the flowing of liquid refrigerant of blocking feedback pipe arrangement 9.In this embodiment, the 2nd pressure gauge 11 becomes the setting pressure (being made as " 0.5MPa " in this embodiment) of regulation when following at tank pressure, just the tank pressure alarm signal is delivered to control panel 13.Temperature sensor 12 is used for the vessel temp that detects is delivered to control panel 13.Control panel 13 is controlled heating device for refrigerant 10 according to the tank pressure alarm signal and the vessel temp of input.Control panel 13 is equivalent to control device of the present invention.
Fig. 2 represents to feed back the formation of the heating device for refrigerant 10 on the pipe arrangement 9 etc. in detail.Heating device for refrigerant 10 comprises heater 15 and is located at the pressure-reducing valve 16 of feedback on the pipe arrangement 9 in the downstream of this heater 15.Heater 15 is equivalent to be used to heat the heater of the present invention of the liquid refrigerant that flows through feedback pipe arrangement 9.Heater 15 comprises the heating wire 15a that is wound on the feedback pipe arrangement 9.The outward appearance of representing heater 15 among Fig. 3 with front view.As shown in Figure 3, be equipped with in heater 15 comprises heating wire 15a outer cover 17, with the pipe 18 that is connected of feedback pipe arrangement 9, the connector 19,20 at two ends that is located at this pipe 18.In the inside of outer cover 17, heating wire 15a is wound on the pipe 18.On the other hand, pressure-reducing valve 16 is used to make the pressure of the gas refrigerant of having been vaporized by heater 15 heating to reduce.In the heater 15 thermostat is housed,, just remains on heating-up temperature below 40 ℃ by thermostat in case connect.In this embodiment, the setting pressure of pressure-reducing valve 16 is " about 0.9Mpa ".As shown in Figure 2, in this embodiment, the liquid refrigerant that compression pump 2 makes " about 2.0Mpa " flows to heater 15 by feedback pipe arrangement 9, liquid refrigerant vaporization and become the gas refrigerant of " about 2.0Mpa ".After this, this gas refrigerant is by pressure-reducing valve 16, makes pressure drop to " 0.7～0.8Mpa " as the pressure of cryogen vessel 1.
Fig. 4 represents the action of the heater 15 that control panel 13 is carried out with schematic diagram.Control panel 13 is after the startup of refrigerant supplying device, and tank pressure alarm signal " connection " is just the power supply of heater 15 " connection ".After this, when control panel 13 becomes " 6 ℃ " at the signal from the vessel temp of temperature sensor 12, the power supply of heater 15 " shutoff ".Arrive operation between " shutoff " by the power supply that makes heater 15 in " connection ", heater 15 transfers device to turn on and off repeatedly by temperature.
Fig. 5 (a)～(d) represents an example of the various parameter changes relevant with the control of heater 15 with sequential chart.The change of Fig. 5 (a) expression tank pressure, the change of Fig. 5 (b) expression tank pressure alarm signal, the change of Fig. 5 (c) expression heater power source, Fig. 5 (d) expression is equivalent to the change of the vessel temp of environment temperature.As can be seen from Figure 5, along with the reduction of environment temperature, vessel temp reduces, and tank pressure will reduce.So tank pressure is reduced to " 0.5MPa " as setting pressure, the tank pressure alarm signal is " connection " just, and heater power source is " connection " just.After this, heater 15 just remains on heating-up temperature below 40 ℃ by thermostat.Like this, the liquid refrigerant that flows through feedback pipe arrangement 9 just is heated, vaporizes, and by feedback pipe arrangement 9, gas refrigerant flows into cryogen vessel 1, and the interior pressure of cryogen vessel 1 is just rationally kept.At this moment, tank pressure rises near " the about 0.9MPa " as the setting pressure of pressure-reducing valve 16.After this, vessel temp becomes " 6 ℃ ", and heater power source just becomes " shutoff ", and tank pressure just becomes above more than the allowable temperature of " 0.5MPa ".Herein, vessel temp is along with the variation of environment temperature, i.e. seasonal variations and changing, thereby shown in Fig. 5 (d), be lower than " 6 ℃ " winter, just surpass to spring " 6 ℃ ".Therefore, heater 15 is when entering winter, and power supply is " connection " just, and power supply keeps " connection ", becomes " 6 ℃ " up to vessel temp.
Refrigerant supplying device according to above this embodiment that has illustrated, refrigerant supplying device starts, compression pump 2 moves, thereby the liquid refrigerant in the cryogen vessel 1 has been drawn, force feed, be provided for goods 5 by supplying tubing 3 and metering implanter 4, liquid refrigerant just is filled in the goods 5.
Herein, in the downstream of compression pump 2, a part that flows through the liquid refrigerant of supplying tubing 3 flows to feedback pipe arrangement 9 and returns cryogen vessel 1.Also have, at the upstream side of compression pump 2, the refrigerant pressure in the supplying tubing 3, promptly tank pressure is measured by the 2nd pressure gauge 11, and the temperature of cryogen vessel 1 (vessel temp) is detected by temperature sensor 12.At this moment, control panel 13 heater 15 is connected, thereby the liquid refrigerant that flows through feedback pipe arrangement 9 just is heated, vaporizes according to measured tank pressure.Also have, in the downstream of heater 15, the gas refrigerant of having vaporized is by pressure-reducing valve 16 decompressions.Therefore, the gas refrigerant that has reduced pressure returns in the cryogen vessel 1, in the cryogen vessel 1 by the gas refrigerant volume reducing of coming the liquid make-up cold-producing medium owing to drawn amount.Therefore, as required, promptly tank pressure becomes " 0.5MPa " when following, can offer cryogen vessel 1 to gas refrigerant really, and the action that provides to the liquid refrigerant of goods 5 can be provided.On the other hand, control panel 13 turn-offs heater 15 according to measured tank pressure, thereby the heating of flowing through the liquid refrigerant of feedback pipe arrangement 9 will stop, and liquid refrigerant just directly returns cryogen vessel 1.Therefore, vessel temp is abundant when high, and the gas refrigerant in the cryogen vessel 1 can not be increased to the necessary amount that surpasses.Therefore, vessel temp becomes " 6 ℃ " when above, can stop really the providing of the gas refrigerant of cryogen vessel 1, and the excessive pressure that can control in the cryogen vessel 1 rises.Like this, just can heater 15 be moved efficiently according to tank pressure and vessel temp.
In this embodiment, replenish cryogen vessel 1, thereby only be provided with heater 15 and pressure-reducing valve 16 on the pipe arrangement 9 in feedback with gas refrigerant, thus with compare with the situation of main equipment heating and cooling agent container 31 like that with precedent, simplified formation.And, the amount that loss on heating has been simplified by formation and reduced.Therefore, formation relative compactization can be used in, the efficiency of heating surface of liquid refrigerant can be improved replenishing with gas refrigerant among the cryogen vessel 1.And, can also can draw cold-producing medium very soon when waiting temperature low in the winter time by heating the gas pressure that improves in the cryogen vessel 31 to returning cold-producing medium.
Also have, in this embodiment, the formation and the cryogen vessel of feedback pipe arrangement 9, heater 15 and pressure-reducing valve 16 were arranged in 1 minute, also pulled down feedback pipe arrangement 9 from cryogen vessel 1 easily.Therefore, even cryogen vessel 1 is the occasion of alternate form, also can make the replacement operation of cryogen vessel 1 become easy.
In addition, the invention is not restricted to above-mentioned embodiment, in scope, also can change the part of formation, implement in the following manner within the aim of inventing.
(1) in the above-described embodiment,, be provided with electric formula heater 15, but, also can constitute, on the feedback pipe arrangement, heat exchanger is set, replace heater 15, hot fluid is circulated in this heat exchanger by pump etc. as being located at the heater of feedback on the pipe arrangement 9.
(2) in the refrigerant supplying device of above-mentioned embodiment,, but, also can in this constitutes, omit temperature sensor 12 and constitute refrigerant supplying device for the action of control heater 15 is provided with control panel the 13, the 2nd pressure gauge 11 and temperature sensor 12.This in this case, control panel 13 can receive the tank pressure alarm signal from the 2nd pressure gauge 11, and heater 15 is connected.Corresponding therewith, as required, promptly tank pressure becomes " 0.5MPa " when following, also can offer cryogen vessel 1 to gas refrigerant really, and the action that provides to the liquid refrigerant of goods 5 can be provided.Also have, can be used in formation relative compactization, can improve the efficiency of heating surface of liquid refrigerant replenishing with gas refrigerant among the cryogen vessel 1.
(3) in the refrigerant supplying device of above-mentioned embodiment,, but, also can omit these formations for the action of control heater 15 is provided with control panel the 13, the 2nd pressure gauge 11 and temperature sensor 12.This in this case, the operator can make heater 15 connect as required.Corresponding therewith, as required, can offer cryogen vessel 1 to gas refrigerant really, the action that provides to the liquid refrigerant of goods 5 can be provided.Also have, can be used in formation relative compactization, can improve the efficiency of heating surface of liquid refrigerant replenishing with gas refrigerant among the cryogen vessel 1.
Claims (5)
1. refrigerant supplying device, the liquid refrigerant in the cryogen vessel by supplying tubing, offers consumer device by the compression pump force feed, it is characterized in that having:
Branch is carried out from described supplying tubing in downstream at described compression pump, by the feedback pipe arrangement of described cryogen vessel;
Be used to heat the heater of the liquid refrigerant that flows through described feedback pipe arrangement; And
Be located at the pressure-reducing valve on the described feedback pipe arrangement in the downstream of described heater.
2. refrigerant supplying device, the liquid refrigerant in the cryogen vessel by supplying tubing, offers consumer device by the compression pump force feed, it is characterized in that having:
Branch is carried out from described supplying tubing in downstream at described compression pump, by the feedback pipe arrangement of described cryogen vessel;
Be used to heat the heater of the liquid refrigerant that flows through described feedback pipe arrangement;
Be located at the pressure-reducing valve on the described feedback pipe arrangement in the downstream of described heater;
Be used for detecting the pressure-detecting device of the refrigerant pressure of described supplying tubing at the upstream side of described compression pump; And
Be used for controlling the control device of described heater according to detected refrigerant pressure.
3. refrigerant supplying device according to claim 2 is characterized in that, described control device for the setting pressure of regulation and when following, makes described heater action at detected refrigerant pressure.
4. refrigerant supplying device, the liquid refrigerant in the cryogen vessel by supplying tubing, offers consumer device by the compression pump force feed, it is characterized in that having:
Branch is carried out from described supplying tubing in downstream at described compression pump, by the feedback pipe arrangement of described cryogen vessel;
Be used to heat the heater of the liquid refrigerant that flows through described feedback pipe arrangement;
Be located at the pressure-reducing valve on the described feedback pipe arrangement in the downstream of described heater;
Be used for detecting the pressure-detecting device of the refrigerant pressure of described supplying tubing at the upstream side of described compression pump;
Be used to detect the temperature-detecting device of the temperature of described cryogen vessel; And
Be used for controlling the control device of described heater according to detected refrigerant pressure and detected temperature.
5. refrigerant supplying device according to claim 4, it is characterized in that, described control device at detected refrigerant pressure for the setting pressure of regulation and when following, make described heater action, for the design temperature of regulation and when above, the action of described heater is stopped in detected temperature.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004152742 | 2004-05-24 | ||
| JP2004152742A JP4366245B2 (en) | 2004-05-24 | 2004-05-24 | Refrigerant supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1702404A true CN1702404A (en) | 2005-11-30 |
| CN100338418C CN100338418C (en) | 2007-09-19 |
Family
ID=35491280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100738007A Expired - Fee Related CN100338418C (en) | 2004-05-24 | 2005-05-24 | Refrigerant supplying device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4366245B2 (en) |
| KR (1) | KR100629807B1 (en) |
| CN (1) | CN100338418C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922828A (en) * | 2010-09-21 | 2010-12-22 | 林勇 | Quick refrigerant feeding device |
| CN101657687B (en) * | 2007-04-13 | 2011-08-17 | 大金工业株式会社 | Refrigerant charging device, refrigeration device, and refrigerant charging method |
| CN103471300A (en) * | 2013-09-27 | 2013-12-25 | 武汉优力汽车技术发展有限公司 | Device used for recovering and charging more than two kinds of refrigerant |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2997483A3 (en) * | 2012-10-26 | 2014-05-02 | Cinetic Filling | METHOD AND DEVICE FOR FILLING A REFRIGERATED CIRCUIT AT HIGH RATE WITH DIFFERENT FLUIDS SO AS TO FINALLY OBTAIN A HOMOGENEOUS REFRIGERANT FLUID |
| JP6036740B2 (en) * | 2014-04-08 | 2016-11-30 | ウシオ電機株式会社 | Light irradiation device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3805832A1 (en) * | 1987-07-11 | 1989-01-19 | Teves Gmbh Alfred | FLUID FILLING DEVICE |
| JPH01127869A (en) * | 1987-11-12 | 1989-05-19 | Daido Sanso Kk | Method of filling room air conditioner with refrigerant gas |
| DE4337177A1 (en) * | 1993-10-30 | 1995-05-04 | Behr Gmbh & Co | Method and apparatus for filling and/or maintaining air-conditioning systems |
| US5542261A (en) | 1995-04-17 | 1996-08-06 | Albertson; Luther D. | Refrigerant evaporator over-pressure relief system including a fluid containment vessel |
| JP2000346503A (en) * | 1999-05-31 | 2000-12-15 | Mitsubishi Electric Building Techno Service Co Ltd | Refrigerant filling device |
| JP3149871B2 (en) * | 1999-07-05 | 2001-03-26 | 松下電器産業株式会社 | Replacement gas recovery trap container and air conditioner installation method |
| JP2002195705A (en) * | 2000-12-28 | 2002-07-10 | Tgk Co Ltd | Supercritical refrigerating cycle |
| JP2002350014A (en) * | 2001-05-22 | 2002-12-04 | Daikin Ind Ltd | Refrigerating equipment |
-
2004
- 2004-05-24 JP JP2004152742A patent/JP4366245B2/en active Active
-
2005
- 2005-05-23 KR KR1020050042803A patent/KR100629807B1/en not_active IP Right Cessation
- 2005-05-24 CN CNB2005100738007A patent/CN100338418C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101657687B (en) * | 2007-04-13 | 2011-08-17 | 大金工业株式会社 | Refrigerant charging device, refrigeration device, and refrigerant charging method |
| CN101922828A (en) * | 2010-09-21 | 2010-12-22 | 林勇 | Quick refrigerant feeding device |
| CN103471300A (en) * | 2013-09-27 | 2013-12-25 | 武汉优力汽车技术发展有限公司 | Device used for recovering and charging more than two kinds of refrigerant |
| CN103471300B (en) * | 2013-09-27 | 2016-05-18 | 武汉优力汽车技术发展有限公司 | A kind of for two or more refrigerant-recovery and filled device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005337510A (en) | 2005-12-08 |
| JP4366245B2 (en) | 2009-11-18 |
| KR20060048057A (en) | 2006-05-18 |
| KR100629807B1 (en) | 2006-10-02 |
| CN100338418C (en) | 2007-09-19 |
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