CN105202654B - A kind of integral air conditioner unit and its control method applied to subway station - Google Patents

A kind of integral air conditioner unit and its control method applied to subway station Download PDF

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Publication number
CN105202654B
CN105202654B CN201510554359.8A CN201510554359A CN105202654B CN 105202654 B CN105202654 B CN 105202654B CN 201510554359 A CN201510554359 A CN 201510554359A CN 105202654 B CN105202654 B CN 105202654B
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air
electronic
valve
compressor
evaporative condenser
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CN105202654A (en
Inventor
潘展华
黄云材
王亮添
黄海峰
林特耀
陈禧
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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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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F13/222Means for preventing condensation or evacuating condensate for evacuating condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers

Abstract

The invention discloses a kind of integral air conditioner units and its control method applied to subway station, the air-conditioner set is monolithic construction, it is divided into upper layer and lower layer, the air-conditioner set upper layer is air-supply chamber, is made of new air-return mixing section, initial effect filtering section, electronics dust removal and filtration section, straight swollen evaporator section, air supply section;The air-conditioner set lower layer is air draft chamber, is made of new air-return mixing section, initial effect filtering section, direct evaporative condenser section, compressor section, exhaustion section;The direct evaporative condenser section of the air draft chamber is fixedly installed with the evaporative condenser with spray system, and the condensed water that air-supply chamber is precipitated enters spray system by pipeline, sprays to evaporative condenser, exchange heat with the refrigerant in evaporative condenser.The present invention uses integral structure, and deals carefully with to the condensed water of evaporative condenser, reduces construction investment, reduces project cost, has the advantages that efficient, energy saving, easy to maintain.

Description

A kind of integral air conditioner unit and its control method applied to subway station
Technical field
The present invention relates to the air-conditioning equipment fields more particularly to one kind that are applied to subway station and the underground space to be applied to The integral air conditioner unit and its control method of subway station.
Background technique
The combination of traditional subway device rooms air-conditioner set " cooling tower+water cooler+end-equipment ", because it is used Water generates chilled water as intermediate refrigerating medium, by water cooler, and chilled water, which passes through chilled water pump again and is delivered to air conditioning terminal, to be set It is standby, it is wet more than indoor waste heat for handling, so that indoor air temperature humidity is met requirement, such as Chinese literature " subway station Plant management information system air-conditioning system is inquired into " subway is disclosed in (Sun Zhaojun write, be detailed in " design of railway standard " the 6th phase in 2004) Several air conditioning modes of station equipment Service center, including all-air system, air blower tube disc system, VRV system etc., these types system System can provide the air conditioning mode of different condition for subway station, guarantee the air quality in subway station, still, these systems Freezed mostly using cold water mode, chilled water transfer pipeline is long, thus the operation energy consumption of chilled water water circulating pump compared with Greatly, refrigerant and chilled water carry out heat exchange before this, and chilled water and air carry out heat exchange again, use the side to exchange heat twice altogether Formula, reduces heat exchange efficiency, and operation energy consumption increases.
And application No. is the Chinese invention patent applications of 201210085322.1 entitled " central air conditioner systems " to disclose one Kind central air conditioner system, including refrigeration compressor, cooling water recirculation system, freezing water circulation system and cooling tower;Cooling water follows Loop system is made of cooling pump, throttle valve and condenser;Water circulation system is freezed by refrigerating water pump, throttle valve, evaporator and blower Coil pipe is constituted;Refrigeration compressor simultaneously with cooling water recirculation system, freezing water circulation system connect, cooling water recirculation system with it is cold Freeze water circulation system connection, the end of cooling water recirculation system is connected to cooling tower.Such air-conditioning system is used in factory, subway The large spaces such as stand, but the installation of such air-conditioning system needs while installing cooling tower, and the placement of cooling tower there are the problem of It is concentrated mainly on the following: 1. since cooling tower need to be mounted on outdoor ground along subway, in crowded city, having When cooling tower placed without space so that part subway line solves the problems, such as a little classes using central cooling mode, but will increase air-conditioning The refrigerating loss of system cold source increases energy consumption, increases overall cost, increases air-conditioning system maintenance cost.2. cooling tower need to be mounted on Outdoor ground along subway interferes urban landscape.3. cooling tower can bring noise pollution and health concerns to surrounding resident.
" a kind of suitable for the combined type whole air conditioner of subway station public area " of Patent No. CN201420025881 State's utility model patent discloses a kind of combined type whole air conditioner suitable for subway station public area, which has a machine Cabinet, the upper layer of cabinet are equipped with air conditioning cabinet, and lower interior part is equipped with water condenser and magnetic bearing centrifugal compressor, wherein described Air conditioning cabinet be rectangle, the air conditioning cabinet of the rectangle is followed successively by fresh air and return air mixing chamber, mistake from one to other end Filter, direct evaporative cooler and pressure fan;The suction inlet of the magnetic bearing centrifugal compressor and direct evaporative cooler Outlet, successively water cooled condenser and expansion valve are connected to the entrance of direct evaporative cooler for outlet.This kind of air-conditioner set benefit Heat exchange processing is carried out to refrigerant with water-cooling pattern, installation needs to be arranged corresponding cooling tower, while being arranged on cooling tower Spray system, this kind of air-conditioning system heat exchange efficiency is low, operation energy consumption is high, and the condensed water that direct evaporative condenser is precipitated does not obtain The problem of condensed water of appropriate processing, precipitation may damage air-conditioner set, and cooling tower occupies ground space does not obtain It well solves.
Summary of the invention
The purpose of the present invention is to provide a kind of integral air conditioner units and its control method applied to subway station, it is intended to It is low to solve subway station air-conditioner set heat exchange efficiency, operation energy consumption is high, condensed water cannot obtain the problems such as dealing carefully with, and solve cold But the problems such as land occupation, noise, drift ice brought by tower.
Foregoing invention purpose of the invention is accomplished by the following way:
A kind of integral air conditioner unit applied to subway station, including it is divided into bilevel monolithic construction, the sky Adjust unit upper layer be air-supply chamber, the air-supply chamber by new air-return mixing section, initial effect filtering section, electronics dust removal and filtration section, directly Swollen evaporator section, air supply section composition;The air-conditioner set lower layer be air draft chamber, the air draft chamber by new air-return mixing section, just Imitate fillter section, direct evaporative condenser section, compressor section, exhaustion section composition;Wherein, the straight swollen evaporator section, compressor section, directly Air-conditioner set refrigeration system is formed between evaporative condenser section, wherein the direct evaporative condenser section of the air draft chamber is fixedly mounted There is the evaporative condenser with spray system, the condensed water that air-supply chamber is precipitated enters spray system by pipeline, cold to evaporating Condenser is sprayed, and is exchanged heat with the refrigerant in evaporative condenser.
The air-conditioner set eliminates freezing, cooling water system, directly replaces original cooling with the air-conditioner set of integral type Tower, water cooler, end-equipment, outdoor fresh air are only once exchanged heat by the straight swollen evaporator section of air-supply chamber, straight swollen condensation For the condensed water of section by water conservancy diversion into spray system, spray system carries out spraying cooling, spray to the evaporative condenser by refrigerant Water drenching exchanges heat with refrigerant therein, to improve the Energy Efficiency Ratio of unit, and has dealt carefully with straight swollen condensation segment and has been precipitated Condensed water.
Further, the spray system include drip tray, connection water pipe, water circulating pump, nozzle, water-collecting tray, gap, Moisturizing float trap and blowdown valve, the drip tray are fixedly installed on the direct evaporator section bottom chamber locular wall of air-supply chamber, and It is connect by connection water pipe with water-collecting tray;The water circulating pump is fixedly installed in water-collecting tray, and passes through spray piping and setting Nozzle in evaporative condenser upper end connects, and the water-collecting tray top edge is provided with moisturizing float trap and gap, and bottom is also It is provided with blowdown valve;The evaporative condenser is fixedly installed between water-collecting tray and nozzle.
Wherein, the condensed water of the air-supply direct evaporator section of chamber is pooled in drip tray, and passes through connection water pipe conveying To the water-collecting tray in air draft chamber, under the action of water circulating pump, it is sent at nozzle by spray piping, to evaporative condenser It is sprayed;The moisturizing float trap carries out moisturizing to water-collecting tray;The gap controls water-collecting tray water level, the blowdown valve pair The water of water-collecting tray periodically carries out sewage treatment.
The air-supply chamber successively embeds the first electronic new air-valve, the first electronic air returning valve, primary filter, electronics dedusting Filter, evaporator and pressure fan, the first electronic new air-valve and the first electronic air returning valve form the new return air of air-supply chamber Mixing section, the primary filter, electronics dust removal filter, evaporator and pressure fan are respectively formed initial effect filtering section, electronics removes Dirt fillter section, straight swollen evaporator section and air supply section;
Outdoor fresh air enters in the wind pushing cavity room, first mixes in new air-return mixing section with return air, then in turn through first Effect filter, electronics dust removal filter be dusted filtering, enters back into after straight swollen evaporator section utilizes evaporator heat exchange and cools down and analyse Condensed water out is discharged to station public area or device rooms by air supply section, wherein the first electronic new air-valve and the first electronic return air Valve is for adjusting the new air-return mixing section fresh air of air-supply chamber and the mixed proportion of return air.
In addition, the air draft chamber be successively embedded with the second electronic new air-valve, the second electronic air returning valve, primary filter, Evaporative condenser, compressor and exhaust blower, the second electronic new air-valve and the second electronic air returning valve form the new of air draft chamber Return air mixing section, the primary filter, evaporative condenser, compressor and exhaust blower are respectively formed initial effect filtering section, directly steam Send out condensation segment, compressor section, exhaustion section;
Indoor wind enters in air draft chamber room, first in new air-return mixing section according to the second electronic new air-valve, the second electronic return air The ratio of valve regulation is mixed with return air, is filtered then in turn through primary filter and is passed through direct evaporative condenser Duan Li Heat exchange is carried out with evaporative condenser, temperature increases after heat absorption, while spraying the water heat absorption evaporation on evaporative condenser and being formed Vapor after high-temperature gas is mixed with vapor, is discharged to air draft pavilion by exhaustion section.
Further, the air-conditioner set refrigeration system is compressor, evaporative condenser, expansion valve, evaporator, gas-liquid point It connects to form refrigerating circuit by refrigeration piping from device, place compressor air suction mouth is provided with low tension switch, in compressor air-discharging Mouth setting high-voltage switch gear, to adjust the pressure of compressor air suction mouth and exhaust outlet, between the evaporative condenser and expansion valve Condensing pressure switch is additionally provided on refrigeration piping, to control the flow of shower water.
Refrigerant becomes the gas of high temperature and pressure after compressor compresses, then carries out heat exchange by evaporative condenser, Refrigerant is condensed into cryogenic high pressure liquid, becomes low temperature and low pressure liquid after expansion valve throttles, and absorbs heat and steams in evaporator Low temperature low pressure gas is sent out into, is then returned in compressor by gas-liquid separator.
Preferably, the straight swollen evaporator section and direct evaporative condenser section are openable, are opened in transition season operation, Reduce ventilation resistance, energy saving.The compressor is that electrodeless tune carries compressor, can automatically adjust energy according to load variations Output.
Preferably, the pressure fan of the air-supply chamber is nearby provided with fresh air Temperature Humidity Sensor;The air-supply chamber and The new air-return mixing section of air draft chamber is provided with air return temperature humidity sensor;The exhaust blower of the air draft chamber is nearby provided with and send Wind-warm syndrome humidity sensor.Temperature parameter is picked by Temperature Humidity Sensor, and is made comparisons with desired temperature, to control compression The output of function amount.
This kind is applied to subway station integral air conditioner unit and is controlled by following steps to realize air-conditioner set not With working under operating mode:
Return air parameter is set on the control panel, and controller is warm and humid according to the signal of the return air temperature of setting and by fresh air The signal that degree sensor, air return temperature humidity sensor are transmitted is judged, different operational modes is selected;It is outdoor empty when detecting When gas enthalpy is greater than air-conditioning system return air enthalpy, minimum fresh air operational mode is executed, executes step S1;When detecting outdoor Air enthalpy be less than or equal to air conditioner system air blast air enthalpy when, and outside air temperature be greater than air-conditioning temperature when, All-fresh air operational mode is executed, step S2 is executed;When detecting that outside air temperature send temperature less than air-conditioning, conditioning in Transition Season is executed Operational mode is saved, step S3 is executed;When receiving fire signal, smoke evacuation operational mode is executed, step S4 is executed.
Step S1: under minimum fresh air operational mode, the electronic new air-valve for chamber of blowing is by most 30% aperture, electronic return air Valve presses 70% aperture, and the electronic new air-valve of exhaustion section presses most 70% aperture, and electronic air returning valve presses 30% aperture, pressure fan and exhaust blower Operation, compressor operation, water circulating pump operation, control system are defeated according to the energy of the variation automatic adjustment compressor of room temperature Out.
Step S2: under all-fresh air operational mode, the electronic new air-valve for chamber of blowing is by most 100% aperture, electronic air returning valve It closes, the electronic new air-valve of air draft chamber is closed, and electronic air returning valve presses 100% aperture, pressure fan, exhaust blower operation, compressor fortune Row, water circulating pump operation, control system are exported according to the energy of the variation automatic adjustment compressor of room temperature.
Step S3: under transition season operational mode, the electronic new air-valve for chamber of blowing is by most 100% aperture, electronic return air Valve is closed, and the electronic new air-valve of air draft chamber is closed, and electronic air returning valve presses 100% aperture, pressure fan, exhaust blower operation, compressor Out of service, water circulating pump is out of service.
Step S4: under operational mode of discharging fume, the electronic new air-valve for chamber of blowing is closed, and electronic air returning valve is closed, air draft The electronic new air-valve of chamber is closed, and electronic air returning valve presses 100% aperture, and exhaust blower operation, pressure fan is out of service, and compressor stops It only runs, water circulating pump is out of service.
What technical solution of the present invention was realized has the beneficial effect that
(1) air-conditioner set is provided with the spray system for the condensate water device that the direct condensation segment of recycling air-supply chamber is precipitated, On the one hand condensed water is recycled, prevents condensed water from gathering and the component of air-conditioner set is damaged, on the other hand, condensed water The temperature for reducing the water in spray system reduces the condensation temperature of refrigeration system by nozzles spray evaporative condenser, improves The Energy Efficiency Ratio of unit.
(2) original secondary heat exchange mode is become primary direct evaporation and heat-exchange by the air-conditioner set, improves evaporating temperature, To improving heat exchange efficiency, also while eliminating freezing, cooling water system and substantially reduced due to having lacked freezing, cooling water pump The operation energy consumption of entire air-conditioning system, in addition, integral air conditioner unit directly replaces original cooling tower, water cooler, end End equipment is greatly saved Metro Air conditioner equipment space occupied, reduces subway station project cost, is more convenient for safeguarding, meanwhile, by It is openable in straight swollen evaporator section and direct evaporative condenser section, in transition season operation, reduces air drag, reduce air-supply Machine wasted work reaches energy-efficient effect.Indoor air draft is discharged to outdoor after direct evaporative condenser again, is contained to air draft Energy is recycled.
(3) the electronic new air-valve of air-conditioner set, electronic air returning valve and compressor, spray system etc. are controlled by controller The switch of equipment and operation make air-conditioner set that can realize that minimum fresh air operational mode, all-fresh air are transported according to the operating condition of Various Seasonal The operating modes such as row mode, transition season operational mode.Also, the air-conditioner set has fire smoke discharging function, is able to achieve smoke evacuation The operating mode of operation does not need that smoke evacuation system, cost saving in addition is arranged.
Detailed description of the invention
A kind of integral air conditioner set structure schematic diagram applied to subway station of Fig. 1;
A kind of integral air conditioner Crew Cooling System structural schematic diagram applied to subway station of Fig. 2;
A kind of integral air conditioner unit spray system structural schematic diagram applied to subway station of Fig. 3;
Wherein, 1- pressure fan, 2- evaporator, 3- electronics dust removal filter, 4- primary filter, the electronic return air of 5- first Valve, the electronic new air-valve of 6- first, 7- exhaust blower, 8- compressor, 9- evaporative condenser, the electronic air returning valve of 10- second, 11- second Electronic new air-valve, 12- gas-liquid separator, 13- low tension switch, 14- high-voltage switch gear, 15- expansion valve, 16- condensing pressure switch, 17- drip tray, 18- connection water pipe, 19- water circulating pump, 20- spray piping, 21- nozzle, 22- water-collecting tray, 23- gap, 24- Moisturizing float trap, 25- blowdown valve.
Specific embodiment
The present invention is made combined with specific embodiments below and further being elaborated, but embodiment is not the present invention Any type of restriction.
It is a kind of integral air conditioner unit applied to subway station as shown in Figure 1, which is monolithic construction, is divided into Two layers lower, upper layer is air-supply chamber, and lower layer is air draft chamber.The air-supply chamber is by new air-return mixing section, initial effect filtering section, electricity Sub- dust removal and filtration section, straight swollen evaporator section, air supply section composition;The air-conditioner set lower layer be air draft chamber, the air draft chamber by New air-return mixing section, initial effect filtering section, direct evaporative condenser section, compressor section, exhaustion section composition;Wherein, the straight swollen evaporation Section, compressor section form air-conditioner set refrigeration system between direct evaporative condenser section, wherein the direct steaming of the air draft chamber Hair condensation segment is fixedly installed with the evaporative condenser 9 with spray system, and the condensed water that air-supply chamber is precipitated passes through connection water pipe 18 enter spray system, spray to evaporative condenser 9, exchange heat with the refrigerant in evaporative condenser 9.
It is the spray system of the integral air conditioner unit applied to subway station as shown in Figure 3, which includes Drip tray 17, connection water pipe 18, water circulating pump 19, nozzle 21, water-collecting tray 22, gap 23, moisturizing float trap 24 and blowdown Valve 25, the drip tray 17 are fixedly installed on the direct evaporator section bottom chamber locular wall of air-supply chamber, and pass through connection water pipe 18 It is connect with water-collecting tray 22;The water circulating pump 19 is fixedly installed in water-collecting tray 22, and is connected by spray piping 20 and nozzle 21 It connects, spray piping 20 is equipped with moisturizing float trap 24;22 top edge of water-collecting tray is provided with moisturizing float trap 24 and gap 23, bottom is additionally provided with blowdown valve 25;The evaporative condenser 9 is fixedly installed between water-collecting tray 22 and nozzle 21.,
Wherein, the condensed water of the air-supply direct evaporator section of chamber is pooled in drip tray 17, and is conveyed by connection water pipe 18 To the water-collecting tray 22 in air draft chamber, under the action of water circulating pump 19, it is sent at nozzle 21 by spray piping 20, to steaming The condenser 9 that feels cold is sprayed;The moisturizing float trap 24 carries out moisturizing to water-collecting tray 22;The gap 23 controls water-collecting tray 22 Water level, the blowdown valve 25 periodically carry out sewage treatment to the water of water-collecting tray 22.
Further, the air-supply chamber successively embeds the first electronic new air-valve 6, the first electronic air returning valve 5, primarily efficient filter Device 4, electronics dust removal filter 3, evaporator 2 and pressure fan 1, the first electronic new air-valve 6 and the first electronic formation of air returning valve 5 The new air-return mixing section of air-supply chamber, the primary filter 4, electronics dust removal filter 3, evaporator 2 and pressure fan 1 distinguish shape At initial effect filtering section, electronics dust removal and filtration section, straight swollen evaporator section and air supply section;
Outdoor fresh air enters in the wind pushing cavity room, first mixes in new air-return mixing section with return air, then in turn through first Effect filter 4, electronics dust removal filter 3 are dusted filtering, enter back into straight swollen evaporator section using cooling down simultaneously after the heat exchange of evaporator 2 Condensed water is precipitated, is discharged to station public area or device rooms by air supply section, wherein the first electronic new air-valve 6 and first is electronic Air returning valve 5 is for adjusting the new air-return mixing section fresh air of air-supply chamber and the mixed proportion of return air.
In addition the air draft chamber is successively embedded with the second electronic new air-valve 11, the second electronic air returning valve 10, primarily efficient filter Device 4, evaporative condenser 9, compressor 8 and exhaust blower 7, the second electronic new air-valve 11 and the second electronic air returning valve 10 form row The new air-return mixing section of wind chamber, the primary filter, evaporative condenser, compressor and exhaust blower are respectively formed primarily efficient filter Section, direct evaporative condenser section, compressor section, exhaustion section;
Indoor wind enters in air draft chamber room, first in new air-return mixing section according to the second electronic new air-valve 11, second electronic time The ratio that air-valve 10 is adjusted is mixed with return air, is filtered then in turn through primary filter 4 and is passed through direct evaporative condenser Duan Liyong evaporative condenser 9 carries out heat exchange, and temperature increases after heat absorption, while spraying the water on evaporative condenser 9 and absorbing heat and steaming Hair forms vapor, after high-temperature gas is mixed with vapor, is discharged to air draft pavilion by exhaustion section.
If Fig. 2 is the refrigeration system of the air-conditioner set, the refrigeration system be compressor 8, evaporative condenser 9, expansion valve 15, Evaporator 2, gas-liquid separator 12 connect to form refrigerating circuit by refrigeration piping, and compressor 8 air entry in place is provided with low pressure High-voltage switch gear 14 is arranged in 8 exhaust outlet of compressor, to adjust the pressure of compressor 8 air entry and exhaust outlet, the steaming in switch 13 It feels cold and is additionally provided with condensing pressure switch 16 on the refrigeration piping between condenser 9 and expansion valve 15, to control the flow of shower water.
Refrigerant becomes the gas of high temperature and pressure after the compression of compressor 8, then carries out hot friendship by evaporative condenser 9 It changes, refrigerant is condensed into cryogenic high pressure liquid, becomes low temperature and low pressure liquid after the throttling of expansion valve 15, in evaporator 2 Heat absorption flashes to low temperature low pressure gas, then returns in compressor 8 by gas-liquid separator 12.
The straight swollen evaporator section and direct evaporative condenser section are openable, open, reduce logical in transition season operation Wind resistance, energy saving.The compressor 8 is that electrodeless tune carries compressor, can automatically adjust energy output according to load variations.
Wherein, the pressure fan of the air-supply chamber is nearby provided with fresh air Temperature Humidity Sensor;The air-supply chamber and row The new air-return mixing section of wind chamber is provided with air return temperature humidity sensor;The exhaust blower of the air draft chamber is nearby provided with air-supply Temperature Humidity Sensor.Temperature parameter is picked by Temperature Humidity Sensor, and is made comparisons with desired temperature, to control compressor Energy output.
This kind is applied to subway station integral air conditioner unit and is controlled by following steps to realize air-conditioner set not With working under operating mode:
Return air parameter is set on the control panel, and controller is warm and humid according to the signal of the return air temperature of setting and by fresh air The signal that degree sensor, air return temperature humidity sensor are transmitted is judged, different operational modes is selected;It is outdoor empty when detecting When gas enthalpy is greater than air-conditioning system return air enthalpy, minimum fresh air operational mode is executed, executes step S1;When detecting outdoor Air enthalpy be less than or equal to air conditioner system air blast air enthalpy when, and outside air temperature be greater than air-conditioning temperature when, All-fresh air operational mode is executed, step S2 is executed;When detecting that outside air temperature send temperature less than air-conditioning, conditioning in Transition Season is executed Operational mode is saved, step S3 is executed;When receiving fire signal, smoke evacuation operational mode is executed, step S4 is executed.
Step S1: under minimum fresh air operational mode, the electronic new air-valve 6 of the first of chamber of blowing is by most 30% aperture, and first Electronic air returning valve 5 presses 70% aperture, and the electronic new air-valve 11 of the second of air draft chamber presses most 70% aperture, and the second electronic air returning valve 10 is pressed 30% aperture, pressure fan 1 and exhaust blower 7 are run, and compressor 8 is run, and water circulating pump 19 is run, and control system is according to room temperature Variation automatic adjustment compressor 8 energy output.
Step S2: under all-fresh air operational mode, the electronic new air-valve 6 of the first of chamber of blowing is by most 100% aperture, and first Electronic air returning valve 5 is closed, and the electronic new air-valve 11 of the second of air draft chamber is closed, and the second electronic air returning valve 10 presses 100% aperture, is sent Blower 1, exhaust blower 7 are run, and compressor 8 is run, and water circulating pump 19 is run, and control system is adjusted automatically according to the variation of room temperature Save the energy output of compressor.
Step S3: under transition season operational mode, the electronic new air-valve 6 of the first of chamber of blowing is by most 100% aperture, and One electronic air returning valve 5 is closed, and the electronic new air-valve 11 of the second of air draft chamber is closed, and the second electronic air returning valve 10 presses 100% aperture, Pressure fan 1, exhaust blower 7 are run, and compressor 8 is out of service, and water circulating pump 19 is out of service.
Step S4: under operational mode of discharging fume, the electronic new air-valve 6 of the first of chamber of blowing is closed, the first electronic air returning valve 5 It closes, the electronic new air-valve 11 of the second of air draft chamber is closed, and the second electronic air returning valve 10 presses 100% aperture, and exhaust blower 7 runs, send Blower 1 is out of service, and compressor 8 is out of service, and water circulating pump 19 is out of service.

Claims (10)

1. a kind of integral air conditioner unit applied to subway station, including it is divided into bilevel monolithic construction, the air-conditioning Unit upper layer be air-supply chamber, the air-supply chamber by new air-return mixing section, initial effect filtering section, electronics dust removal and filtration section, directly it is swollen Evaporator section, air supply section composition;The air-conditioner set lower layer is air draft chamber, and the air draft chamber is by new air-return mixing section, just effect Fillter section, direct evaporative condenser section, compressor section, exhaustion section composition;Wherein, the straight swollen evaporator section, compressor section, directly steaming It sends out and forms air-conditioner set refrigeration system between condensation segment, which is characterized in that the direct evaporative condenser section of the air draft chamber is fixed Evaporative condenser with spray system is installed, the condensed water that air-supply chamber is precipitated enters spray system by pipeline, to steaming The condenser that feels cold is sprayed, and is exchanged heat with the refrigerant in evaporative condenser;
The air-supply chamber successively embeds the first electronic new air-valve, the first electronic air returning valve, primary filter, electronics dust removal and filtration Device, evaporator and pressure fan, the first electronic new air-valve and the first electronic air returning valve form the new return air mixing of air-supply chamber Section, the primary filter, electronics dust removal filter, evaporator and pressure fan are respectively formed initial effect filtering section, electronics dedusting Filter section, straight swollen evaporator section and air supply section;
The air draft chamber is successively embedded with the second electronic new air-valve, the second electronic air returning valve, primary filter, evaporative condenser Device, compressor and exhaust blower, the second electronic new air-valve and the second electronic air returning valve form the new return air mixing of air draft chamber Section, the primary filter, evaporative condenser, compressor and exhaust blower be respectively formed initial effect filtering section, direct evaporative condenser section, Compressor section, exhaustion section;
When outdoor air enthalpy is greater than air-conditioning system return air enthalpy, minimum fresh air operational mode is executed;When detecting room When outer air enthalpy is less than or equal to air conditioner system air blast air enthalpy, and outside air temperature is greater than air-conditioning temperature When, execute all-fresh air operational mode;
Return air parameter is set on the control panel, and control system is according to the signal of the return air temperature of setting and by fresh air temperature and humidity The signal that sensor, air return temperature humidity sensor are transmitted is judged, different operational modes is selected;
Under minimum fresh air operational mode, the first electronic new air-valve press 30% aperture, the first electronic air returning valve press 70% aperture, second Electronic new air-valve presses 70% aperture, and the second electronic air returning valve presses 30% aperture, pressure fan, exhaust blower operation, compressor operation, spray System operation;
Under all-fresh air operational mode, the first electronic new air-valve presses 100% aperture, and the first electronic air returning valve is closed, and second is electronic new Air-valve is closed, and the second electronic air returning valve presses 100% aperture, pressure fan, exhaust blower operation, compressor operation, spray system operation.
2. being applied to the integral air conditioner unit of subway station according to claim 1, which is characterized in that the spray system packet Include drip tray, connection water pipe, water circulating pump, nozzle, water-collecting tray, gap, moisturizing float trap and blowdown valve, the drip tray It is fixedly installed on the straight swollen evaporator section bottom chamber locular wall of air-supply chamber, and connect by connecting water pipe with water-collecting tray;It is described to follow Ring water pump is fixedly installed in water-collecting tray, and is connect by spray piping with the nozzle being set to above evaporative condenser, described Water-collecting tray top edge is provided with moisturizing float trap and gap, and bottom is additionally provided with blowdown valve.
3. being applied to the integral air conditioner unit of subway station according to claim 1, which is characterized in that the air-supply chamber is straight The condensed water for connecing evaporator section is pooled in drip tray, and the water-collecting tray being pipelined in air draft chamber, in water circulating pump Under the action of, it is sent at nozzle by pipeline, evaporative condenser is sprayed.
4. being applied to the integral air conditioner unit of subway station according to claim 1, which is characterized in that outdoor fresh air enters institute It states in wind pushing cavity room, first in new air-return mixing section and return air according to the first electronic new air-valve, the ratio of the first electronic return air valve regulation Example mixing is dusted filtering then in turn through primary filter, electronics dust removal filter, enters back into straight swollen evaporator section utilization Cool down after evaporator heat exchange and condensed water is precipitated, is discharged to station public area or device rooms by air supply section.
5. being applied to the integral air conditioner unit of subway station according to claim 1, which is characterized in that indoor wind enters air draft In chamber, first mixed according to the ratio of the second electronic new air-valve, the second electronic return air valve regulation with return air in new air-return mixing section, It is filtered then in turn through primary filter and passes through direct evaporative condenser section and carry out heat exchange using evaporative condenser, Temperature increases after heat absorption, while spraying the water heat absorption evaporation on evaporative condenser and forming vapor, high-temperature gas and vapor After mixing, air draft pavilion is discharged to by exhaustion section.
6. being applied to the integral air conditioner unit of subway station according to claim 1, which is characterized in that the air-conditioner set system Cooling system is compressor, evaporative condenser, expansion valve, evaporator, gas-liquid separator are connected to be formed by refrigeration piping and be freezed back Road, the compressor air suction mouth are provided with low tension switch, and exhaust outlet is provided with high-voltage switch gear, the evaporative condenser and expansion valve Between refrigeration piping on be additionally provided with condensing pressure switch.
7. being applied to the integral air conditioner unit of subway station according to claim 1, which is characterized in that the straight swollen evaporator section It is openable with direct evaporative condenser section.
8. the integral air conditioner unit according to claim 4 or 5 applied to subway station, which is characterized in that the compressor Compressor is carried for electrodeless tune.
9. being applied to the integral air conditioner unit of subway station according to claim 1, which is characterized in that the air-supply chamber Pressure fan is nearby provided with fresh air Temperature Humidity Sensor;The new air-return mixing section of the air-supply chamber and air draft chamber is provided with Air return temperature humidity sensor;The exhaust blower of the air draft chamber is nearby provided with air-supply Temperature Humidity Sensor.
10. a kind of control method applied to subway station such as claim 1-7,9 described in any item integral air conditioner units, Characterized by comprising the following steps:
Step S0: return air parameter is set on the control panel, control system is according to the signal of the return air temperature of setting and by new The signal that wind-warm syndrome humidity sensor, air return temperature humidity sensor are transmitted is judged, different operational modes is selected;When detecting When outdoor air enthalpy is greater than air-conditioning system return air enthalpy, minimum fresh air operational mode is executed, executes step S1;Work as detection When being less than or equal to air conditioner system air blast air enthalpy to outdoor air enthalpy, and outside air temperature is greater than air-conditioning temperature When spending, all-fresh air operational mode is executed, executes step S2;When detecting that outside air temperature send temperature less than air-conditioning, execute Transition season operational mode executes step S3;When receiving fire signal, smoke evacuation operational mode is executed, step S4 is executed;
Step S1: under minimum fresh air operational mode, the first electronic new air-valve presses 30% aperture, and the first electronic air returning valve is opened by 70% Degree, the second electronic new air-valve press 70% aperture, and the second electronic air returning valve presses 30% aperture, pressure fan, exhaust blower operation, compressor fortune Row, water circulating pump operation, control system are exported according to the energy of the variation automatic adjustment compressor of room temperature;
Step S2: under all-fresh air operational mode, the first electronic new air-valve presses 100% aperture, and the first electronic air returning valve is closed, the Two electronic new air-valves are closed, and the second electronic air returning valve presses 100% aperture, pressure fan, exhaust blower operation, compressor operation, recirculated water Pump operation, control system are exported according to the energy of the variation automatic adjustment compressor of room temperature;
Step S3: under transition season operational mode, the first electronic new air-valve presses 100% aperture, and the first electronic air returning valve is closed, Second electronic new air-valve is closed, and the second electronic air returning valve presses 100% aperture, and pressure fan, exhaust blower operation, compressor is out of service, Water circulating pump is out of service;
Step S4: under operational mode of discharging fume, the first electronic new air-valve is closed, and the first electronic air returning valve is closed, and second is electronic new Air-valve is closed, and the second electronic air returning valve presses 100% aperture, and exhaust blower operation, pressure fan is out of service, and compressor is out of service, follows Ring water pump is out of service.
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