CN204227586U - A kind of two low-temperature receiver latent heat process low-temperature air conditioner unit - Google Patents

A kind of two low-temperature receiver latent heat process low-temperature air conditioner unit Download PDF

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CN204227586U
CN204227586U CN201420625035.XU CN201420625035U CN204227586U CN 204227586 U CN204227586 U CN 204227586U CN 201420625035 U CN201420625035 U CN 201420625035U CN 204227586 U CN204227586 U CN 204227586U
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low
condenser
refrigeration
compressor
temperature
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林创辉
李云鹏
彭雨
张晓艳
邱小亮
吴东华
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Guangdong Shenling Air Conditioning Equipment Co Ltd
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Guangdong Shenling Air Conditioning Equipment Co Ltd
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Abstract

The utility model discloses a kind of two low-temperature receiver latent heat process low-temperature air conditioner unit, comprise outside framework assembly, air treatment system, chilled water cooling system, refrigeration system one, refrigeration system two, refrigeration system three, refrigeration system four and control system.The utility model is compared with tradition list low-temperature receiver single-stage latent heat process low-temperature air conditioner machine, Energy Efficiency Ratio is higher, economize energy more, reasonable in design, energy-efficient, control accuracy, stable and reliable operation, and have two low-temperature receiver selection function, solve the problem that the temperature adjustment air conditioning water low-temperature receiver that utilizes efficiency higher is more than needed; Economize energy, minimizing environmental pollution, meet the energy saving standard policy that country advocates.

Description

A kind of two low-temperature receiver latent heat process low-temperature air conditioner unit
Technical field
The utility model relates to a kind of low-temperature air conditioner unit, in particular a kind of two low-temperature receiver latent heat process low-temperature air conditioner unit.
Background technology
Current latent heat process low-temperature air conditioner machine product is meet the requirement of air conditioner surroundings to humid control, by cooling the large enthalpy difference of air, for reducing the humidity of air, humidity regulation is carried out to air-conditioned room, combine with efficient temperature adjustment air-conditioning system, reach the object that air-conditioned room temperature and humidity regulation controls.
But existing latent heat process low-temperature air conditioner machine product, refrigeration system is only adopted to freeze single low-temperature receiver and single-stage refrigeration mode, such as, it is 30 DEG C at EAT, when requiring leaving air temp to be the cold air distribution of 7 DEG C, the evaporating temperature of complete machine needs to be low to moderate-2 ~ 0 DEG C, thus the compressor operating efficiency that result in the general latent heat process low-temperature air conditioner unit of single low-temperature receiver single-stage refrigeration is quite low, and due to evaporating temperature too low, easily occur that frosting causes the problem of generator protection action, thus Energy Efficiency Ratio is low to make complete machine occur, the problems such as the unstable and control accuracy of long-play is not high, energy consumption is high, it is unreliable to run, do not meet the energy conservation type that country advocates, the requirement of friendly environment society.
Meanwhile, because latent heat process low-temperature air conditioner is combined with efficient temperature adjustment air-conditioning system, when sub-load or transition season, temperature adjustment air-conditioning cold flow has more than needed, but latent heat process low-temperature air conditioner cannot utilize, and can only waste, and causes the waste of cold and equipment.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The purpose of this utility model is to provide a kind of two low-temperature receiver latent heat process low-temperature air conditioner unit, be intended to solve that existing latent heat process low-temperature air conditioner Energy Efficiency Ratio is low, longtime running is unstable, control accuracy is not high, and latent heat process low-temperature air conditioner cannot utilize temperature adjustment air-condition freezing water problem.
The technical solution of the utility model is as follows: a kind of two low-temperature receiver latent heat process low-temperature air conditioner, wherein, outside framework assembly, air treatment system, chilled water cooling system, refrigeration system one, refrigeration system two, refrigeration system three, refrigeration system four and control system is comprised;
Described outside framework assembly comprises base and outside framework, outside framework is fixedly installed on base, described outside framework is provided with air inlet and air outlet, the top of outside framework is provided with multiple stage axial flow blower, and axial flow blower provides the power of gas flow for whole low-temperature air conditioner; Described air treatment system chilled water cooling system, refrigeration system one, refrigeration system two, refrigeration system three and refrigeration system four are all arranged in outside framework;
Described air treatment system comprises humidifier, motor and pressure fan, and described humidifier is arranged in outside framework, and blower setting is at air outlet place, and motor is connected with pressure fan;
Described chilled water cooling system comprises Surface cooling coil, and described Surface cooling coil is connected to high-temperature air conditioner system by water inlet pipe and outlet pipe, described water inlet pipe is provided with flow-control water valve;
Described refrigeration system one comprises compressor one, condenser one, reservoir one, device for drying and filtering one and one-level evaporimeter, and described compressor one, condenser one, reservoir one, device for drying and filtering one and one-level evaporimeter are connected to form the circulation loop of cold-producing medium between any two by pipeline; The vibrational power flow of described refrigeration system two is consistent with refrigeration system one;
Described refrigeration system three comprises compressor three, condenser three, again reheater condenser three, reservoir three, device for drying and filtering three, three grades of evaporimeters and gas-liquid separator three, described compressor three, condenser three, reservoir three, device for drying and filtering three, three grades of evaporimeters and gas-liquid separator three are connected to form loop by pipeline between any two, described condenser three is also connected with reheater condenser three again, then reheater condenser three is connected with compressor three; Condenser magnetic valve three is provided with between compressor three and condenser three, reheating condenser magnetic valve three is being provided with again between reheater condenser three and compressor three, between compressor three and three grades of evaporimeters, be provided with defrosting magnetic valve three, the air inlet pipeline of compressor three is connected with evaporating pressure controller three; The vibrational power flow of described refrigeration system four is consistent with refrigeration system three;
Described control system comprises electric control box, room temperature sensor, room humidity sensor, EAT sensor and air intake humidity sensor, described electric control box comprises sensor data acquisition module, central control module and operation display interface, described room temperature sensor, room humidity sensor, EAT sensor and air intake humidity sensor all with sensor data acquisition model calling, sensor data acquisition module is all connected with central control module with operation display interface; Described axial flow blower, motor, humidifier, flow-control water valve, compressor one, compressor two, compressor three, condenser magnetic valve three, reheating condenser magnetic valve three, defrosting magnetic valve three, evaporating pressure controller three, compressor four, condenser magnetic valve four, reheating condenser magnetic valve four, defrosting magnetic valve four are all connected with central control module with evaporating pressure controller four.
Described two low-temperature receiver latent heat process low-temperature air conditioner units, wherein, are all provided with non-return valve one and pressure switch one in the inlet and outlet of described compressor one; The entrance of one-level evaporimeter is provided with expansion valve one; Non-return valve two and pressure switch two is all provided with in the inlet and outlet of described compressor two; The entrance of secondary evaporimeter is provided with expansion valve two.
Described two low-temperature receiver latent heat process low-temperature air conditioner units, wherein, are all provided with non-return valve three and pressure switch three in the inlet and outlet of described compressor three; The entrance of three grades of evaporimeters is provided with expansion valve three; Between described condenser three and reservoir three, condenser three and be provided with check valve three between reheater condenser three again; The inlet and outlet of described compressor four is provided with non-return valve four and pressure switch four; The entrance of level Four evaporimeter is provided with expansion valve four; Between described condenser four and reservoir four, condenser four and be provided with check valve four between reheater condenser four again.
Described two low-temperature receiver latent heat process low-temperature air conditioner units, wherein, described air inlet is provided with air-valve.
Described two low-temperature receiver latent heat process low-temperature air conditioner units, wherein, described air inlet is also provided with air cleaner: hot blast enters air cleaner by air-valve and carries out contaminant filter, then enters in outside framework.
Described two low-temperature receiver latent heat process low-temperature air conditioner units, wherein, the bottom of described outside framework is provided with drip tray, and drip tray is placed in the below of one-level evaporimeter, secondary evaporimeter, three grades of evaporimeters and level Four evaporimeter, drip tray external connection row water pipe.
The beneficial effects of the utility model: the utility model is by two low-temperature receiver latent heat process low-temperature air conditioner unit, adopt the multiple innovation structures such as two low-temperature receiver design, step air latent heat cooling processing mode and energy-conservation reheating, that uses innovation prevents frosting, Defrost mode and intelligent control method, efficiently solve that the efficiency that traditional single low-temperature receiver single-stage latent heat process low-temperature air conditioner machine product occurs is low, longtime running is unstable, control accuracy is not high, and the problem of the temperature adjustment air conditioning water low-temperature receiver that efficiency cannot be utilized higher; Compared with tradition list low-temperature receiver single-stage latent heat process low-temperature air conditioner machine, Energy Efficiency Ratio is higher, more economize energy; The utility model is reasonable in design, energy-efficient, control accuracy is high, stable and reliable operation, and has two low-temperature receiver selection function, and the temperature adjustment air conditioning water low-temperature receiver that efficiency can be utilized higher freezes; Can effectively economize energy, reduce environmental pollution, meet the energy saving standard policy that country advocates.
Accompanying drawing explanation
Fig. 1 is the front view of two low-temperature receiver latent heat process low-temperature air conditioner unit in the utility model.
Fig. 2 is the left view of two low-temperature receiver latent heat process low-temperature air conditioner unit in the utility model.
Fig. 3 is the inside connection diagram of two low-temperature receiver latent heat process low-temperature air conditioner unit in the utility model.
Fig. 4 is the flow chart of steps of two low-temperature receiver latent heat process low-temperature air conditioner unit allocation method in the utility model.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, clearly, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
As Figure 1-3, this pair of low-temperature receiver latent heat process low-temperature air conditioner comprises outside framework assembly, air treatment system, chilled water cooling system, refrigeration system one, refrigeration system two, refrigeration system three, refrigeration system four and control system.
Described outside framework assembly comprises base 110 and outside framework 120, described outside framework 120 is fixedly installed on base 110, described outside framework 120 is provided with air inlet 121 and air outlet 122, the top of outside framework 120 is provided with multiple stage axial flow blower 123, described axial flow blower 123 is connected with control system, and axial flow blower 123 provides the power of gas flow for whole low-temperature air conditioner; Described air treatment system chilled water cooling system, refrigeration system one, refrigeration system two, refrigeration system three and refrigeration system four are all arranged in outside framework 120.
Described air treatment system comprises humidifier 210, motor 220 and pressure fan 230, described humidifier 210 is arranged in outside framework 120, pressure fan 230 is arranged on air outlet 122 place, and motor 220 is connected with pressure fan 230, and described humidifier 210 is all connected with control system with motor 220.
In order to control the intake of low-temperature air conditioner, described air inlet 121 place is provided with air-valve 125.Low-temperature air conditioner is entered in order to prevent the foreign material in air, affect the operation of internal unit, described air inlet 121 place is provided with air cleaner 126: hot blast enters air cleaner 126 by air-valve 125 and carries out contaminant filter, then enters each equipment in outside framework 120.
Described chilled water cooling system comprises Surface cooling coil 310, described Surface cooling coil 310 is connected to high-temperature air conditioner system by water inlet pipe and outlet pipe, described water inlet pipe is provided with flow-control water valve 320, described flow-control water valve 320 is connected with control system: chilled water is introduced into flow flow-control water valve 320, then Surface cooling coil 310 is entered by water inlet pipe, chilled water in Surface cooling coil 310 cools the moving air by Surface cooling coil fin, after chilled water and hot-air heat exchange, air themperature reduces, chilled water own temperature raises, chilled water after intensification is flowed out by outlet pipe and enters high-temperature air conditioner system.
Described refrigeration system one comprises compressor 1, condenser 1, reservoir 1, device for drying and filtering 1 and one-level evaporimeter 480, described compressor 1, condenser 1, reservoir 1, device for drying and filtering 1 and one-level evaporimeter 480 are connected to form the circulation loop of cold-producing medium between any two by pipeline, described compressor 1 is connected with control system.
In order to realize the flow direction and the Stress control of cold-producing medium in compressor 1, be all provided with non-return valve one and pressure switch one in the inlet and outlet of described compressor 1.In order to ensure the work quality of one-level evaporimeter 480, the entrance of one-level evaporimeter 480 being provided with expansion valve one, throttling being realized to the cold-producing medium entering one-level evaporimeter 480 and controls the effect of flow.
Described refrigeration system two comprises compressor 2 510, condenser 2 540, reservoir 2 550, device for drying and filtering 2 560 and secondary evaporimeter 580, described compressor 2 510, condenser 2 540, reservoir 2 550, device for drying and filtering 2 560 and secondary evaporimeter 580 are connected to form the circulation loop of cold-producing medium between any two by pipeline, described, described compressor 2 510 is connected with control system.
In order to realize the flow direction and the Stress control of cold-producing medium in compressor 2 510, be all provided with non-return valve two and pressure switch two in the inlet and outlet of described compressor 2 510.In order to ensure the work quality of secondary evaporimeter 580, the entrance of secondary evaporimeter 580 being provided with expansion valve two, throttling being realized to the cold-producing medium entering secondary evaporimeter 580 and controls the effect of flow.
Described refrigeration system three comprises compressor 3 610, condenser 3 660, again reheater condenser 3 670, reservoir 3 690, device for drying and filtering 3 620, three grades of evaporimeters 630 and gas-liquid separator 3 680, described compressor 3 610, condenser 3 660, reservoir 3 690, device for drying and filtering 3 620, three grades of evaporimeters 630 and gas-liquid separator 3 680 are connected to form loop by pipeline between any two, described condenser 3 660 is also connected with reheater condenser 3 670 again, then reheater condenser 3 670 is connected with compressor 3 610; Condenser magnetic valve 3 640 is provided with between compressor 3 610 and condenser 3 660, reheating condenser magnetic valve 3 650 is being provided with again between reheater condenser 3 670 and compressor 3 610, between compressor 3 610 and three grades of evaporimeters 630, be provided with defrosting magnetic valve three, the air inlet pipeline of described compressor 3 610 is connected with evaporating pressure controller three; Described compressor 3 610, condenser magnetic valve 3 640, reheating condenser magnetic valve 3 650, defrosting magnetic valve three are all connected with control system with evaporating pressure controller three.
In order to realize the flow direction and the Stress control of cold-producing medium in compressor 3 610, be all provided with non-return valve three and pressure switch three in the inlet and outlet of described compressor 3 610.In order to ensure the work quality of three grades of evaporimeters 630, the entrance of three grades of evaporimeters 630 being provided with expansion valve three, throttling being realized to the cold-producing medium entering three grades of evaporimeters 630 and controls the effect of flow.In order to prevent adverse current, between described condenser 3 660 and reservoir 3 690, condenser 3 660 and be provided with check valve three between reheater condenser 3 670 again.
Described refrigeration system four comprises compressor 4 710, condenser 4 760, again reheater condenser 4 770, reservoir 4 790, device for drying and filtering 4 720, level Four evaporimeter 730 and gas-liquid separator 4 780, described compressor 4 710, condenser 4 760, reservoir 4 790, device for drying and filtering 4 720, level Four evaporimeter 730 and gas-liquid separator 4 780 are connected to form loop by pipeline between any two, described condenser 4 760 is also connected with reheater condenser 4 770 again, then reheater condenser 4 770 is connected with compressor 4 710; Condenser magnetic valve 4 740 is provided with between compressor 4 710 and condenser 4 760, reheating condenser magnetic valve 4 750 is being provided with again between reheater condenser 4 770 and compressor 4 710, between compressor 4 710 and level Four evaporimeter 730, be provided with defrosting magnetic valve four, the air inlet pipeline of described compressor 4 710 is connected with evaporating pressure controller three; Described compressor 4 710, condenser magnetic valve 4 740, reheating condenser magnetic valve 4 750, defrosting magnetic valve four are all connected with control system with evaporating pressure controller four.
In order to realize the flow direction and the Stress control of cold-producing medium in compressor 4 710, be all provided with non-return valve four and pressure switch four in the inlet and outlet of described compressor 4 710.In order to ensure the work quality of level Four evaporimeter 730, the entrance of level Four evaporimeter 730 being provided with expansion valve four, throttling being realized to the cold-producing medium entering level Four evaporimeter 730 and controls the effect of flow.In order to prevent adverse current, between described condenser 4 760 and reservoir 4 790, condenser 4 760 and be provided with check valve four between reheater condenser 4 770 again.
Described control system comprises electric control box 810, room temperature sensor 820, room humidity sensor 830, EAT sensor 840 and air intake humidity sensor 850, described electric control box 810 comprises sensor data acquisition module, central control module and operation display interface, described room temperature sensor 820, room humidity sensor 830, EAT sensor 840 and air intake humidity sensor 850 all with sensor data acquisition model calling, sensor data acquisition module is all connected with central control module with operation display interface; Described axial flow blower 123, motor 220, humidifier 210, flow-control water valve 320, compressor 1, compressor 2 510, compressor 3 610, condenser magnetic valve 3 640, reheating condenser magnetic valve 3 650, defrosting magnetic valve three, evaporating pressure controller three, compressor 4 710, condenser magnetic valve 4 740, reheating condenser magnetic valve 4 750, defrosting magnetic valve four are all connected with central control module with evaporating pressure controller four.
Condensed water in order to the device that avoids evaporating is detained in outside framework 120, affect the normal operation of equipment in outside framework 120, the bottom of described outside framework 120 is provided with drip tray 124, drip tray 124 is placed in the below of one-level evaporimeter, secondary evaporimeter, three grades of evaporimeters and level Four evaporimeter: the condensed water that one-level evaporimeter, secondary evaporimeter, three grades of evaporimeters and level Four evaporimeter stay from top to bottom stay drip tray 124, then to be discharged by drainpipe.
The flow process that this pair of low-temperature receiver latent heat process low-temperature air conditioner realizes the process of air step latent heat is as follows: air by air inlet 121 first by entering air cleaner 126 after air-valve 125, filter out the various dust in air and impurity, then one-level cooling is carried out by Surface cooling coil 310, then secondary cooling is carried out by one-level evaporimeter 480, then three grades of coolings are carried out by secondary evaporimeter 580, enter three grades of evaporimeters 630 again and carry out level Four cooling, the level Four evaporimeter 730 that enters carries out Pyatyi cooling, then reheater condenser 3 670 is again passed through, reheater condenser 4 770 carries out reheating wet down or carries out equal-enthalpy humidifying by humidifier 210 again, after process reaches air-supply requirement, air-conditioned room is delivered to by pressure fan 230.
As shown in Figure 4, a kind of control method of two low-temperature receiver latent heat process low-temperature air conditioners as described above, specifically comprises the following steps:
Step S1: input room temperature set point, room humidity setting value by operation display interface, select to determine low-temperature receiver method of supplying, evaporating pressure setting value and pressure reset setting difference;
Step S2: sensor data acquisition module Real-time Collection is detected the room humiture information, the air intake humiture information that obtain by room temperature sensor 820, room humidity sensor 830, EAT sensor 840 and air intake humidity sensor 850, room humiture information and air intake humiture information are sent to central control module, and evaporating pressure controller three and evaporating pressure controller four evaporating pressure in real time in signal piping is sent to central control module;
Step S3: the instruction that central control module inputs according to step S1 and the humiture information obtained according to step S2; automatic control flow controls water valve 320, refrigeration system one, refrigeration system two, refrigeration system three and refrigeration system four, motor 220, axial flow blower 123, humidifier 210, reheating condenser magnetic valve 3 650, reheating condenser magnetic valve 4 750, the start-stop of condenser magnetic valve 3 640 and condenser magnetic valve 4 740 or load proportion, guarantees that the humiture of air-conditioned room all reaches setting requirement.
In step sl, when the low-temperature receiver method of supplying being selected by operation display interface to determine is chilled water low-temperature receiver, step S3 specifically comprises the following steps:
Step s11: central control module controls flow-control water valve 320 and opens, controls to close refrigeration system one and refrigeration system two, opens refrigeration system three and refrigeration system four;
Step s12: central control module judges that whether detect by room humidity sensor 830 room humidity obtained in real time is greater than room humidity setting value, is, performs step s13-step s18, no, performs step s19-step s114;
Step s13: central control module controls not disconnect the flow that large discharge controls water valve 320;
Step s14: central control module judges flow-control water valve 320 whether standard-sized sheet, is perform step s15-step s17, no, performs step s18;
Step s15: central control module judges that whether detect by room humidity sensor 830 room humidity obtained in real time is greater than room humidity setting value, is, performs step S35, no, performs step S36;
Step s16: central control module controls to open reheating condenser magnetic valve 3 650 and reheating condenser magnetic valve 4 750, close condenser magnetic valve 3 640 and condenser magnetic valve 4 740, reheating wet down is carried out to the air of process, guarantees that the humiture of air-conditioned room all reaches setting requirement;
Step s17: perform step S34;
Step s18: perform step S33;
Step s19: central control module controls the flow constantly closing Small Flow Control water valve 320;
Step s110: central control module judges flow-control water valve 320 whether complete shut-down, is perform step s111-step s13, no, performs step s114;
Step s111: central control module judges that whether detect by room humidity sensor 830 room humidity obtained in real time is less than room humidity setting value, is, performs step s112, no, performs step s113;
Step s112: central control module controls open humidifier 210 and add moisture according to room humidity setting value step-less adjustment, guarantees that the humiture of air-conditioned room all reaches setting requirement;
Step s113: perform step S310;
Step s114: perform step S39.
In step sl, when the low-temperature receiver method of supplying being selected by operation display interface to determine is compressor low-temperature receiver, step S3 specifically comprises the following steps:
Step s21: central control module controls to close flow-control water valve 320, opens refrigeration system one, refrigeration system two, refrigeration system three and refrigeration system four;
Step s22: central control module judges that whether detect by room humidity sensor 830 room humidity obtained in real time is greater than room humidity setting value, is, performs step s23-step s28, no, performs step s29-step s214;
Step s23: central control module controls to open refrigeration system two and refrigeration system one step by step in order;
Step s24: central control module judges whether refrigeration system two and refrigeration system one all open, and are, performs step s25-s27, no, performs step s28;
Step s25: central control module judges that whether detect by room humidity sensor 830 room humidity obtained in real time is greater than room humidity setting value, is, performs step s26, no, performs step s27;
Step s26: central control module controls to open reheating condenser magnetic valve 3 650 and reheating condenser magnetic valve 4 750, close condenser magnetic valve 3 640 and condenser magnetic valve 4 740, reheating wet down is carried out to the air of process, guarantees that the humiture of air-conditioned room all reaches setting requirement;
Step s27: perform step s25;
Step s28: perform step s24;
Step s29: central control module controls to close refrigeration system two and refrigeration system one step by step in order;
Step s210: central control module judges whether refrigeration system two and refrigeration system one all close, and are, performs step s211-s213, no, performs step s214;
Step s211: central control module judges that whether detect by room humidity sensor 830 room humidity obtained in real time is less than room humidity setting value, is, performs step s212, no, performs step s213;
Step s212: central control module controls open humidifier 210 and add moisture according to room humidity setting value step-less adjustment, guarantees that the humiture of air-conditioned room all reaches setting requirement;
Step s213: perform step s25;
Step s214: perform step s210.
In order to prevent the evaporimeter Yin Wendu of refrigeration system three and refrigeration system four from reducing, there is existing frosting, causing the evaporating pressure of refrigeration system to decline, in whole control flow, also comprise following defrosting step simultaneously:
Step K 1: evaporating pressure controller three and evaporating pressure controller four evaporating pressure in real time in signal piping feeds back to central control module, central control module judges that whether real-time evaporating pressure is lower than evaporating pressure setting value, is, performs step K 2-step K 5, no, perform step K 6;
Step K 2: central control module controls defrosting magnetic valve three and defrosting magnetic valve four is opened, and makes the high temperature refrigerant superheated vapor of compressor 3 610 and compressor 4 710 enter three grades of evaporimeters 630 and level Four evaporimeter 730, to remove frosting;
Step K 3: central control module judges that whether detect by evaporating pressure controller three and evaporating pressure controller four the pipeline evaporating pressure that obtains in real time resets higher than evaporating pressure setting value and pressure and set difference sum, be, perform step K 4, no, perform step K 5;
Step K 4: central control module controls defrosting magnetic valve three and defrosting magnetic valve four cuts out, stops allowing the high temperature refrigerant superheated vapor of compressor 3 610 and compressor 4 710 enter three grades of evaporimeters 630 and level Four evaporimeter 730;
Step K 5: perform step K 3;
Step K 6: perform step K 1.
The concrete following advantage of the utility model: 1, the utility model adopts two low-temperature receiver design, when system only need run sub-load can the air conditioner coolant water more than needed that provides of Selection utilization high-temperature air conditioner system as low-temperature receiver, save the energy consumption of this pair of low-temperature receiver latent heat process low-temperature air conditioner as far as possible, also can solve the problem of the cold waste more than needed of high-temperature air conditioner system chilled water simultaneously; When system oepration at full load, also Selection utilization refrigeration system can provide low-temperature receiver, have low-temperature receiver selection function flexibly, the temperature adjustment low-temperature receiver that can preferentially utilize efficiency higher carries out energy-conservation.2, the utility model adopts step air latent heat cooling processing mode, Energy Efficiency Ratio is high, economize energy: traditional single low-temperature receiver single-stage latent heat process low-temperature air conditioner unit adopts refrigeration system list low-temperature receiver and single-stage refrigeration mode, such as, it is 30 DEG C at EAT, when needing wind pushing temperature to be 7 DEG C, the evaporating temperature of complete machine needs to be low to moderate-2 ~ 0 DEG C, makes the compressor operating efficiency of traditional single low-temperature receiver single-stage latent heat process low-temperature air conditioner unit quite low; The utility model adopts the type of cooling of multistage refrigerating plant and two low-temperature receiver, cool-down dehumidification step by step, compared with traditional single low-temperature receiver single-stage latent heat process low-temperature air conditioner unit, Energy Efficiency Ratio is high: such as, it is 30 DEG C at EAT, when needing wind pushing temperature to be 7 DEG C, divide level Four refrigeration system cooling and dehumidifying step by step, the evaporating temperature of fourth stage refrigeration system is low to moderate-2 ~ 0 DEG C, but the evaporating temperature of all the other refrigeration systems can be in 10 ~ 15 DEG C, greatly improve the evaporating temperature of prime refrigeration system, thus significantly improve the Energy Efficiency Ratio of complete machine, economize energy.3, the utility model adopts the mode preventing frosting and defrosting of innovation, make unit long-play reliable and stable: traditional single low-temperature receiver single-stage latent heat process low-temperature air conditioner unit, when leaving air temp is lower, the evaporating temperature of evaporimeter is lower than 0 DEG C, easily cause evaporator fin frosting, running time is longer, frosting is more serious, frosting can block evaporator fin, increase the air drag of evaporimeter, reduce ventilation, further reduction evaporating temperature, long-time continuous service easily causes unit low-voltage variation, situation about could open once again after needing to shut down defrosting, application process bothers, leaving air temp and refrigerating capacity become stable not due to frosting, the air-conditioning of equilibrium temperature and flow cannot be provided for a long time, comfortableness is lower, the mode preventing frosting and defrosting of the utility model application innovation, when the evaporimeter Yin Wendu of rear class refrigeration system three and refrigeration system four reduces, when there is existing frosting, the evaporating pressure of refrigeration system declines, when the pipeline evaporating pressure that the evaporating pressure controller of refrigeration system three and refrigeration system four detects is lower than pressure set points, the defrosting magnetic valve of refrigeration system three and refrigeration system four is opened, the high temperature refrigerant superheated vapor of compressor exhaust pipe is entered after the expansion valve of refrigeration system three and refrigeration system four, high temperature hot gas is allowed to enter refrigeration system three and refrigeration system four evaporimeter of evaporimeter heating frosting, removing frosting, after frosting defrosting, evaporating pressure rises, the pipeline evaporating pressure that the evaporating pressure controller of refrigeration system three and refrigeration system four detects higher than pressure set points and pressure reset set difference sum time, the defrosting closed electromagnetic valve of refrigeration system three and refrigeration system four, stop allowing high pressure refrigerant vapor enter evaporimeter.4, traditional single low-temperature receiver single-stage latent heat process low-temperature air conditioner unit, adopt electric heater as reheating humidity regulation, and the utility model adopts energy-conservation reheating condenser to utilize air-conditioning waste heat to substitute the electrical heating of conventional rack, a large amount of electric energy that reheating humidity regulation needs are saved.
This pair of low-temperature receiver latent heat process low-temperature air conditioner adopts the multiple innovation structures such as two low-temperature receiver design, step air latent heat cooling processing mode and energy-conservation reheating, that uses innovation prevents frosting, Defrost mode and intelligent control method, efficiently solve that the efficiency that traditional single low-temperature receiver single-stage latent heat process low-temperature air conditioner machine product occurs is low, longtime running is unstable, control accuracy is not high, and the problem of the temperature adjustment air conditioning water low-temperature receiver that efficiency cannot be utilized higher; When unit occurs frosting at running, without the need to shutting down defrosting, leaving air temp does not affect by frosting, and long-play provides stable air-conditioning, thus ensures humid control precision at any time; Compared with tradition list low-temperature receiver single-stage latent heat process low-temperature air conditioner machine, Energy Efficiency Ratio is higher, more economize energy; The utility model is reasonable in design, energy-efficient, control accuracy is high, stable and reliable operation, and has two low-temperature receiver selection function, and the temperature adjustment air conditioning water low-temperature receiver that efficiency can be utilized higher freezes; Can effectively economize energy, reduce environmental pollution, meet the energy saving standard policy that country advocates, there is important economy and social effect.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills, can be improved according to the above description or convert, all these improve and convert the protection domain that all should belong to the utility model claims.

Claims (6)

1. a two low-temperature receiver latent heat process low-temperature air conditioner, is characterized in that, comprise outside framework assembly, air treatment system, chilled water cooling system, refrigeration system one, refrigeration system two, refrigeration system three, refrigeration system four and control system;
Described outside framework assembly comprises base and outside framework, outside framework is fixedly installed on base, described outside framework is provided with air inlet and air outlet, the top of outside framework is provided with multiple stage axial flow blower, and axial flow blower provides the power of gas flow for whole low-temperature air conditioner; Described air treatment system chilled water cooling system, refrigeration system one, refrigeration system two, refrigeration system three and refrigeration system four are all arranged in outside framework;
Described air treatment system comprises humidifier, motor and pressure fan, and described humidifier is arranged in outside framework, and blower setting is at air outlet place, and motor is connected with pressure fan;
Described chilled water cooling system comprises Surface cooling coil, and described Surface cooling coil is connected to high-temperature air conditioner system by water inlet pipe and outlet pipe, described water inlet pipe is provided with flow-control water valve;
Described refrigeration system one comprises compressor one, condenser one, reservoir one, device for drying and filtering one and one-level evaporimeter, and described compressor one, condenser one, reservoir one, device for drying and filtering one and one-level evaporimeter are connected to form the circulation loop of cold-producing medium between any two by pipeline; The vibrational power flow of described refrigeration system two is consistent with refrigeration system one;
Described refrigeration system three comprises compressor three, condenser three, again reheater condenser three, reservoir three, device for drying and filtering three, three grades of evaporimeters and gas-liquid separator three, described compressor three, condenser three, reservoir three, device for drying and filtering three, three grades of evaporimeters and gas-liquid separator three are connected to form loop by pipeline between any two, described condenser three is also connected with reheater condenser three again, then reheater condenser three is connected with compressor three; Condenser magnetic valve three is provided with between compressor three and condenser three, reheating condenser magnetic valve three is being provided with again between reheater condenser three and compressor three, between compressor three and three grades of evaporimeters, be provided with defrosting magnetic valve three, the air inlet pipeline of compressor three is connected with evaporating pressure controller three; The vibrational power flow of described refrigeration system four is consistent with refrigeration system three;
Described control system comprises electric control box, room temperature sensor, room humidity sensor, EAT sensor and air intake humidity sensor, described electric control box comprises sensor data acquisition module, central control module and operation display interface, described room temperature sensor, room humidity sensor, EAT sensor and air intake humidity sensor all with sensor data acquisition model calling, sensor data acquisition module is all connected with central control module with operation display interface; Described axial flow blower, motor, humidifier, flow-control water valve, compressor one, compressor two, compressor three, condenser magnetic valve three, reheating condenser magnetic valve three, defrosting magnetic valve three, evaporating pressure controller three, compressor four, condenser magnetic valve four, reheating condenser magnetic valve four, defrosting magnetic valve four are all connected with central control module with evaporating pressure controller four.
2. according to claim 1 pair of low-temperature receiver latent heat process low-temperature air conditioner unit, is characterized in that, be all provided with non-return valve one and pressure switch one in the inlet and outlet of described compressor one; The entrance of one-level evaporimeter is provided with expansion valve one; Non-return valve two and pressure switch two is all provided with in the inlet and outlet of described compressor two; The entrance of secondary evaporimeter is provided with expansion valve two.
3. according to claim 1 pair of low-temperature receiver latent heat process low-temperature air conditioner unit, is characterized in that, be all provided with non-return valve three and pressure switch three in the inlet and outlet of described compressor three; The entrance of three grades of evaporimeters is provided with expansion valve three; Between described condenser three and reservoir three, condenser three and be provided with check valve three between reheater condenser three again; The inlet and outlet of described compressor four is provided with non-return valve four and pressure switch four; The entrance of level Four evaporimeter is provided with expansion valve four; Between described condenser four and reservoir four, condenser four and be provided with check valve four between reheater condenser four again.
4. according to claim 3 pair of low-temperature receiver latent heat process low-temperature air conditioner unit, it is characterized in that, described air inlet is provided with air-valve.
5. according to claim 4 pair of low-temperature receiver latent heat process low-temperature air conditioner unit, it is characterized in that, described air inlet is also provided with air cleaner: hot blast enters air cleaner by air-valve and carries out contaminant filter, then enters in outside framework.
6. according to claim 5 pair of low-temperature receiver latent heat process low-temperature air conditioner unit, it is characterized in that, the bottom of described outside framework is provided with drip tray, and drip tray is placed in the below of one-level evaporimeter, secondary evaporimeter, three grades of evaporimeters and level Four evaporimeter, drip tray external connection row water pipe.
CN201420625035.XU 2014-10-27 2014-10-27 A kind of two low-temperature receiver latent heat process low-temperature air conditioner unit Withdrawn - After Issue CN204227586U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104359166A (en) * 2014-10-27 2015-02-18 广东申菱空调设备有限公司 Double-cold-source latent heat treatment low-temperature air conditioning unit and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104359166A (en) * 2014-10-27 2015-02-18 广东申菱空调设备有限公司 Double-cold-source latent heat treatment low-temperature air conditioning unit and control method thereof
CN104359166B (en) * 2014-10-27 2017-03-29 广东申菱环境系统股份有限公司 A kind of pair of low-temperature receiver latent heat processes low-temperature air conditioner unit and its control method

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C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8

Patentee after: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT CO., LTD.

Address before: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8

Patentee before: Guangdong Shenling Air Conditioning Equipment Co., Ltd.

AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20150325

Effective date of abandoning: 20170329