CN105509378A - Automatic air discharging device and using method thereof - Google Patents
Automatic air discharging device and using method thereof Download PDFInfo
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- CN105509378A CN105509378A CN201510912073.2A CN201510912073A CN105509378A CN 105509378 A CN105509378 A CN 105509378A CN 201510912073 A CN201510912073 A CN 201510912073A CN 105509378 A CN105509378 A CN 105509378A
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- separator
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- liquid
- incoagulable gas
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention provides an automatic air discharging device and a using method thereof. The upper end of a primary separator is connected with a mixed gas pipeline through a first filter; the top of the primary separator is connected with the bottom of a secondary separator through a first one-way valve; a high-pressure liquid pipeline is connected with the upper end of the secondary separator through a first temperature control valve; the top of the secondary separator is connected with an ammonia absorbing water container through an air discharging pipeline. The automatic air discharging device is simple in structure principle; the condensation pressure of a refrigeration system can be effectively reduced; the refrigeration capacity is improved; the power consumption is reduced; the leakage of refrigerant to the environment is reduced; compared with the conventional horizontal type quadruple-pipe air discharging device, the automatic air discharging device is simple to operate and can be automatically controlled, so that the system can efficiently run in an energy-saving way; the direct economic benefit is generated during running of the system; the automatic air discharging device is especially applicable to an ammonia refrigeration system.
Description
Technical field:
The present invention relates to air separator field, particularly relate to a kind of automatic evacuation gas device and using method.
Background technology:
Air separator is main still for getting rid of the incoagulable gas contained in refrigerating plant, certainly main based on air.Present domestic use have horizontal-type bushing-type, vertical disc tubular type and self-action air separator three kinds of patterns.Its connection request is as follows: feed pipe can pick out from the high-pressure liquid tube near regulation station or air separator, as the low-temperature receiver of air separator after throttling.
Muffler should be connected on the return-air duct of the evaporation circuit that evaporating temperature is lower, cooling condition is stablized, often work, and must not directly be connected with suction line, in order to avoid there is wet stroke when feed flow is many, gas mixing pipe should connect from reservoir and condenser.Fluid-tight effect due to reservoir makes the incoagulable gas entering refrigeration system accumulate in condenser and reservoir, therefore should pick out mixture pipe to air separator from these two equipment.Some vertical (type) condensers have upper and lower two joints of dropping a hint.This is because under a certain pressure, temperature lower air content is large, and during vertical (type) condenser work, near liquid outlet, temperature is minimum, and it is suitable for dropping a hint from here.When quitting work, then can drop a hint from the exit on top.Emptying tracheae should access in water, for the process of the liquid be condensed, horizontal be inner loop use, vertical receive the cocycle of air separator feed pipe use, difference in height also can be utilized to enter reservoir.
Summary of the invention:
It is simple that the object of the invention provides a kind of structural principle, the condensing pressure of system can be effectively reduced, increase refrigerating capacity, save power consumption, reduce the leakage of cold-producing medium to environment, simple to operate, and can realize automatically controlling, enable the operation that system is energy-efficient, in system cloud gray model, produce the technical scheme of direct economic benefit:
A kind of automatic evacuation gas device and using method, mainly comprise first separator, second separator, mist pipeline, high-pressure liquid line, suction line, blowdown piping and ammonia absorb water receptacle, mist pipeline, high-pressure liquid line connects turborefrigerator respectively, first separator upper end connects mist pipeline by the first filter, top is by the first ball valve connecting secondary separator bottom, high-pressure liquid line is by the first thermostatic expansion valve connecting secondary separator upper end, second separator top connects ammonia by blowdown piping and absorbs water receptacle.
As preferably, first separator bottom is provided with liquid-sighting glass and the second filter, and by the first check valve, the second check valve and the 3rd filter connecting secondary separator.
As preferably, second separator inside is provided with ball float plunger and valve seat, top is provided with 300psid pressure safety valve, and connect suction line by 225psid check-valves, 225psid check-valves side arranges Pressure gauge, also through shut off valve is provided with bottom second separator, incoagulable gas stop valve, the second ball valve, the second thermostatic expansion valve and 1psid check-valves is provided with between second separator and blowdown piping, second separator is provided with temperature controller, blowdown piping also arranges magnetic valve of dropping a hint, and temperature controller connects magnetic valve of dropping a hint.
As preferably, device automatic control method of dropping a hint mainly comprises the following steps:
The mist that A, turborefrigerator are discharged enters first separator by mist pipeline, heat exchange coil liquid towards refrigerant cools cooling in first separator;
B, cool after meteyage refrigerant vapour and incoagulable gas, refrigerant vapour is condensed and is discharged into low pressure evaporator coil inlet, and incoagulable gas accumulates in the top of second separator in a gaseous form;
The sensible heat that C, Air flow are released is much smaller than the latent heat of releasing during refrigerant liquefaction, and air does not undergo phase transition, and remains gaseous state, air is cumulative at second separator top, temperature is more and more higher, and temperature controller controls to drop a hint closed electromagnetic valve, and temperature reduces;
D, temperature drop to the lower of setting value gradually and prescribe a time limit, magnetic valve of dropping a hint is opened and is discharged by blowdown piping by air, the incoagulable gas simultaneously mixed enters second separator again, temperature rises again thereupon, when temperature rises in limited time, temperature controller orders closed electromagnetic valve of dropping a hint again, and discharge process temporarily terminates, and so circulates.
As preferably, incoagulable gas discharge method mainly comprises the following steps:
A, incoagulable gas enter the bottom of second separator by first ball valve at first separator top, simultaneously, the refrigerant liquid of the high pressure that turborefrigerator is discharged enters high-pressure liquid line and becomes low pressure refrigerant liquid by the first thermostatic expansion valve, and enters the evaporation coil in second separator;
The degree of superheat of evaporation coil outlet experienced by b, the first thermostatic expansion valve, and supplement fills liquid refrigerant to second separator as required, liquid refrigerant absorbs the heat of incoagulable gas by cooling coil, become steam, enter the compressor air suction mouth of turborefrigerator, incoagulable gas is not condensed into liquid state, there is second separator top in a gaseous form;
The liquid level of the liquid refrigerant in c, second separator changes with the change of ball float plunger, and when the valve seat at ball float plunger and second separator top matches time, incoagulable gas will be exhausted from system;
Pressure in d, second separator is higher than 80psig, and the temperature in second separator is equal to or less than 40 ℉, and incoagulable gas enters ammonia by the second thermostatic expansion valve and the second ball valve through blowdown piping and absorbs water receptacle;
During the release of e, incoagulable gas, the liquid level of liquid refrigerant in second separator rises, and when incoagulable gas removes, ball float plunger rises to the valve seat on ball float plunger, and emptying process terminates;
F, the refrigerant liquid that condensation is got off from incoagulable gas are let out the low-pressure inlet of the evaporation coil getting back to second separator, for the incoagulable gas that condensation is come in by the 3rd filter.
Beneficial effect of the present invention is:
Structural principle of the present invention is simple, it can effectively reduce the condensing pressure of system, increase refrigerating capacity, save power consumption, reduce the leakage of cold-producing medium to environment, compared with horizontal quadruple tubular type, simple to operate, and can realize automatically controlling, enable the operation that system is energy-efficient, in system cloud gray model, produce direct economic benefit.
Accompanying drawing illustrates:
Fig. 1 is structure principle chart of the present invention;
Fig. 2 is incoagulable gas emptying state principle figure of the present invention.
Detailed description of the invention:
For making goal of the invention of the present invention, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.
As Fig. 1, shown in Fig. 2, a kind of automatic evacuation gas device and using method, mainly comprise first separator 1, second separator 2, mist pipeline 3, high-pressure liquid line 4, suction line 5, blowdown piping 6 and ammonia absorb water receptacle 7, described mist pipeline 3 is connected to the top of condenser and reservoir, described high-pressure liquid line 4 is connected to the industrial pipeline of refrigeration system reservoir, described first separator 1 upper end connects described mist pipeline 3 by the first filter 8, top connects bottom described second separator 2 by the first check valve 9, described high-pressure liquid line 4 connects the upper end on described second separator 2 evaporation coil by the first temperature-sensing valve 10, the top of described second separator 2 connects described ammonia by described blowdown piping 6 and absorbs water receptacle 7.
In the present embodiment, be provided with liquid-sighting glass 11 and the second filter 13 bottom first separator 1, and connect described second separator 2 by the first check valve 9.Second separator 2 inside is provided with ball float plunger b and valve seat c, top is provided with 300psid pressure safety valve 18, and connect suction line 5 by 225psid check-valves 19,225psid check-valves 19 side arranges Pressure gauge 20, also be provided with through shut off valve 21 bottom second separator 2 in order to blowdown, between described second separator 2 and described blowdown piping 6, be provided with the check-valves 25 that incoagulable gas stop valve 22, second check valve 23, second temperature-sensing valve 24 and pressure reduction are 1psid.
Device automatic control method of dropping a hint mainly comprises the following steps:
The mist that A, condenser and reservoir top are discharged enters first separator 1 by mist pipeline 3, and first separator 1 utilizes inertia to be separated for the first time mist;
B, first be separated after produce refrigerant liquid and incoagulable gas, refrigerant liquid enters in the evaporation coil of second separator after throttling after filtration, and incoagulable gas is in a gaseous form by entering bottom second separator 2;
The condensing temperature of C, incoagulable gas, far below the condensing temperature of cold-producing medium, so incoagulable gas does not undergo phase transition, remains gaseous state, and cumulative at second separator 2 top, temperature is more and more higher; Cold-producing medium in mist is condensed and is liquefied as liquid state, is connected to evaporation coil entrance by the 3rd filter 15 and choke valve 14;
D, temperature drop to the lower of setting value gradually and prescribe a time limit, magnetic valve of dropping a hint is opened and is discharged by blowdown piping 6 by air, the incoagulable gas simultaneously mixed enters again second separator 2, temperature rises again thereupon, when temperature rises in limited time, temperature controller orders closed electromagnetic valve of dropping a hint again, and discharge process temporarily terminates, and so circulates.
In the present embodiment, the liquid refrigerant carried secretly in mist is carried out first separation by first separator 1.Mainly utilize mist different with the density of liquid refrigerant, by inertia and gravity principle, the flow velocity of mist and flow direction are changed, completes first separation with this; Second separator 2 be after utilizing that incoagulable gas in mist is different with the condensation temperature of cold-producing medium and being cooled condensation of refrigerant for liquid incoagulable gas is still for gaseous state.After the heat of the mist that the low pressure refrigerant liquid absorption temperature after throttling is higher, become the air entry that gaseous refrigerant gets back to refrigeration compressor.Incoagulable gas still stays the top of second separator 2 part sensible heat is passed to the low pressure refrigerant liquid in pipe by evaporation coil after in the form of a vapor; Simultaneously, in mist, latent heat and part sensible heat are passed to the low pressure refrigerant liquid in pipe by the gaseous refrigerant of entrained with by evaporation coil, became cold liquid refrigerant, certainly, also fraction gaseous refrigerant is had not to be condensed, stay the top of second separator 2, incoagulable gas is different with refrigerant vapour proportion and form lamination.
Incoagulable gas discharge method mainly comprises the following steps:
A, incoagulable gas enter the bottom of second separator 2 by first separator 1 top first check valve 9, simultaneously, the high pressure refrigerant liquid that in refrigeration system, reservoir is discharged enters high-pressure liquid line 4 and becomes low pressure refrigerant liquid through the first temperature-sensing valve 10, and enters in the evaporation coil in second separator 2;
The degree of superheat of evaporation coil outlet experienced by b, the first temperature-sensing valve 10, and supplement fills liquid refrigerant to second separator 2 as required, the heat that liquid refrigerant absorbs incoagulable gas by cooling coil becomes steam, enter refrigeration compressor air suction mouth, incoagulable gas is not condensed into liquid state, there is second separator 2 top in a gaseous form;
The liquid level of the liquid refrigerant in c, second separator 2 changes with the change of ball float plunger b, and when the valve seat c at ball float plunger b and second separator 2 top matches time, incoagulable gas will be exhausted from system;
Pressure in d, second separator 2 is higher than 80psig, and the temperature in second separator 2 is equal to or less than 40 ℉, and incoagulable gas enters ammonia by the second thermostatic expansion valve 24 and the second check valve 23 through blowdown piping 6 and absorbs water receptacle 7;
After e, incoagulable gas are discharged, the liquid level of liquid refrigerant in second separator 2 rises, and when incoagulable gas removes, ball float plunger b rises to the valve seat on ball float plunger b, and emptying process terminates;
F, the refrigerant liquid that condensation is got off from mist get back to the low-pressure inlet of the evaporation coil of second separator 2 by the 3rd filter 15 and choke valve, for cooling and mixing gas.
Structural principle of the present invention is simple, the condensing pressure of refrigeration system can be effectively reduced, increase refrigerating capacity, save power consumption, reduce the leakage of cold-producing medium to environment, compared with traditional horizontal quadruple pipe air-discharging device, simple to operate, and can realize automatically controlling, enable the operation that system is energy-efficient, in system cloud gray model, produce direct economic benefit.
Above-described embodiment is preferred embodiment of the present invention; it is not the restriction to technical solution of the present invention; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (5)
1. an automatic evacuation gas device, it is characterized in that: mainly comprise first separator, second separator, mist pipeline, high-pressure liquid line, suction line, blowdown piping and ammonia absorb water receptacle, described mist pipeline, described high-pressure liquid line connects turborefrigerator respectively, described first separator upper end connects described mist pipeline by the first filter, top connects bottom described second separator by the first ball valve, described high-pressure liquid line connects described second separator upper end by the first thermostatic expansion valve, described second separator top connects described ammonia by described blowdown piping and absorbs water receptacle.
2. a kind of automatic evacuation gas device according to claim 1, is characterized in that: described first separator bottom is provided with liquid-sighting glass and the second filter, and is connected described second separator by the first check valve, the second check valve with the 3rd filter.
3. a kind of automatic evacuation gas device according to claim 1, it is characterized in that: described second separator inside is provided with ball float plunger and valve seat, top is provided with 300psid pressure safety valve, and connect suction line by 225psid check-valves, 225psid check-valves side arranges Pressure gauge, also through shut off valve is provided with bottom second separator, incoagulable gas stop valve is provided with between described second separator and described blowdown piping, second ball valve, second thermostatic expansion valve and 1psid check-valves, described second separator is provided with temperature controller, described blowdown piping also arranges magnetic valve of dropping a hint, temperature controller connects magnetic valve of dropping a hint.
4. realize the using method of a kind of automatic evacuation gas device according to claim 1, it is characterized in that: device automatic control method of dropping a hint mainly comprises the following steps:
The mist that A, turborefrigerator are discharged enters first separator by mist pipeline, heat exchange coil liquid towards refrigerant cools cooling in first separator;
B, cool after meteyage refrigerant vapour and incoagulable gas, refrigerant vapour is condensed and is discharged into low pressure evaporator coil inlet, and incoagulable gas accumulates in the top of second separator in a gaseous form;
The sensible heat that C, Air flow are released is much smaller than the latent heat of releasing during refrigerant liquefaction, and air does not undergo phase transition, and remains gaseous state, air is cumulative at second separator top, temperature is more and more higher, and temperature controller controls to drop a hint closed electromagnetic valve, and temperature reduces;
D, temperature drop to the lower of setting value gradually and prescribe a time limit, magnetic valve of dropping a hint is opened and is discharged by blowdown piping by air, the incoagulable gas simultaneously mixed enters second separator again, temperature rises again thereupon, when temperature rises in limited time, temperature controller orders closed electromagnetic valve of dropping a hint again, and discharge process temporarily terminates, and so circulates.
5. realize the using method of a kind of automatic evacuation gas device according to claim 1, it is characterized in that: incoagulable gas discharge method mainly comprises the following steps:
A, incoagulable gas enter the bottom of second separator by first ball valve at first separator top, simultaneously, the refrigerant liquid of the high pressure that turborefrigerator is discharged enters high-pressure liquid line and becomes low pressure refrigerant liquid by the first thermostatic expansion valve, and enters the evaporation coil in second separator;
The degree of superheat of evaporation coil outlet experienced by b, the first thermostatic expansion valve, and supplement fills liquid refrigerant to second separator as required, liquid refrigerant absorbs the heat of incoagulable gas by cooling coil, become steam, enter the compressor air suction mouth of turborefrigerator, incoagulable gas is not condensed into liquid state, there is second separator top in a gaseous form;
The liquid level of the liquid refrigerant in c, second separator changes with the change of ball float plunger, and when the valve seat at ball float plunger and second separator top matches time, incoagulable gas will be exhausted from system;
Pressure in d, second separator is higher than 80psig, and the temperature in second separator is equal to or less than 40 ℉, and incoagulable gas enters ammonia by the second thermostatic expansion valve and the second ball valve through blowdown piping and absorbs water receptacle;
During the release of e, incoagulable gas, the liquid level of liquid refrigerant in second separator rises, and when incoagulable gas removes, ball float plunger rises to the valve seat on ball float plunger, and emptying process terminates;
F, the refrigerant liquid that condensation is got off from incoagulable gas are let out the low-pressure inlet of the evaporation coil getting back to second separator, for the incoagulable gas that condensation is come in by the 3rd filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510912073.2A CN105509378B (en) | 2015-12-11 | 2015-12-11 | A kind of automatic evacuation gas device and application method |
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| CN201510912073.2A CN105509378B (en) | 2015-12-11 | 2015-12-11 | A kind of automatic evacuation gas device and application method |
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| CN105509378A true CN105509378A (en) | 2016-04-20 |
| CN105509378B CN105509378B (en) | 2018-03-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568245A (en) * | 2016-10-30 | 2017-04-19 | 广州市粤联水产制冷工程有限公司 | Automatic air discharging device |
| WO2020029804A1 (en) * | 2018-08-09 | 2020-02-13 | 麦克维尔空调制冷(武汉)有限公司 | Refrigerant purification system and heat exchange system including refrigerant purification system |
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| RU2027123C1 (en) * | 1991-01-22 | 1995-01-20 | Краснодарский научно-исследовательский центр хранения и переработки сельскохозяйственной продукции | Reactor-settler of ammonia refrigerating plant |
| CN201209983Y (en) * | 2008-05-12 | 2009-03-18 | 上海海事大学 | Non-condensable gas separation plant of novel ammine refrigeration system |
| CN102269491A (en) * | 2010-06-07 | 2011-12-07 | 四川空分设备(集团)有限责任公司 | Noncondensable gas separation and refrigerant recycling device and method for refrigerating system |
| CN204830358U (en) * | 2015-08-21 | 2015-12-02 | 广州永诚制冷设备有限公司 | Air conditioning unit is congealing nature gas outgoing device not |
-
2015
- 2015-12-11 CN CN201510912073.2A patent/CN105509378B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2027123C1 (en) * | 1991-01-22 | 1995-01-20 | Краснодарский научно-исследовательский центр хранения и переработки сельскохозяйственной продукции | Reactor-settler of ammonia refrigerating plant |
| CN201209983Y (en) * | 2008-05-12 | 2009-03-18 | 上海海事大学 | Non-condensable gas separation plant of novel ammine refrigeration system |
| CN102269491A (en) * | 2010-06-07 | 2011-12-07 | 四川空分设备(集团)有限责任公司 | Noncondensable gas separation and refrigerant recycling device and method for refrigerating system |
| CN204830358U (en) * | 2015-08-21 | 2015-12-02 | 广州永诚制冷设备有限公司 | Air conditioning unit is congealing nature gas outgoing device not |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568245A (en) * | 2016-10-30 | 2017-04-19 | 广州市粤联水产制冷工程有限公司 | Automatic air discharging device |
| CN106568245B (en) * | 2016-10-30 | 2019-10-22 | 广州市粤联水产制冷工程有限公司 | Automatic evacuation gas device |
| WO2020029804A1 (en) * | 2018-08-09 | 2020-02-13 | 麦克维尔空调制冷(武汉)有限公司 | Refrigerant purification system and heat exchange system including refrigerant purification system |
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