CN203454321U - Energy-saving type anti-condensation air-conditioning system with adjustable air volume - Google Patents
Energy-saving type anti-condensation air-conditioning system with adjustable air volume Download PDFInfo
- Publication number
- CN203454321U CN203454321U CN201320547642.4U CN201320547642U CN203454321U CN 203454321 U CN203454321 U CN 203454321U CN 201320547642 U CN201320547642 U CN 201320547642U CN 203454321 U CN203454321 U CN 203454321U
- Authority
- CN
- China
- Prior art keywords
- temperature
- air
- conditioning system
- adjustment room
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 44
- 238000009833 condensation Methods 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 230000001809 detectable Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 235000019628 coolness Nutrition 0.000 description 30
- 230000004087 circulation Effects 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Abstract
The utility model provides an energy-saving type anti-condensation air-conditioning system with adjustable air volume. The air-conditioning system comprises a cooling coil (1), a centrifugal fan (2), at least one temperature sensor, a humidity sensor (5), a proportioning valve (6) and a frequency conversion control module (7). The cooling coil (1) comprises a water return pipe (9) and a water supplying pipe (10), and the water return pipe (9) and a water supplying pipe (10) are respectively communicated with a cold source. The cooling coil (1) is connected with the centrifugal fan (2), and the centrifugal fan (2) is communicated with a room (8) with temperature to be adjusted. The humidity sensor (5) and at least one temperature sensor are arranged in the room (8) with the temperature to be adjusted, and the frequency conversion control module (7) comprises a temperature adjusting unit, a display unit and a data processing unit. The energy-saving type anti-condensation air-conditioning system with the adjustable air volume reduces enthalpy difference by increasing the circulating air volume, and the air is processed till the temperature is higher than the dew point temperature, so that the requirement for indoor environment temperature and humidity is met.
Description
Technical field
The utility model relates to the technical field of air-conditioning system, in particular a kind of energy-saving adjustable air volume anti-condensation air-conditioning system.
Background technology
Existing air-conditioning, generally cooling coil is directly arranged in room, the air-treatment end forming (is the equipment such as air-treatment unit of cooling coil or indoor layout, it is the air conditioning terminal that utilizes chilled water, refer generally to frequency conversion centrifugal blower, cooling coil and sensing, the assembly of control system) do not possess according to indoor temperature and humidity definite wind pushing temperature that imposes a condition, the autonomous function that regulates air-out state, so easy dewfall of air outlet, and energy consumption is large, be difficult to freeze for a long time, therefore, need a kind of air-conditioning system that is difficult for dewfall, to solve existing laboratory or public building room air, process end dewfall and the large problem of air conditioning energy consumption.
Utility model content
In order to solve the aforementioned problems in the prior, the utility model provides a kind of energy-saving adjustable air volume anti-condensation air-conditioning system, it is characterized in that:
It comprises cooling coil 1, centrifugal blower 2, at least one temperature sensor and humidity sensor 5, ratio adjusting valve 6 and VFC module 7;
Described cooling coil 1 comprises return pipe 9 and feed pipe 10, and described return pipe 9 and feed pipe 10 are communicated with low-temperature receiver respectively.
Described cooling coil 1 is connected with centrifugal blower 2;
Described centrifugal blower 2 by wind path with described in treat that temperature adjustment room 8 is communicated with; Described humidity sensor 5 is arranged on and treats in temperature adjustment room 8 with temperature sensor described at least one;
Described VFC module 7 comprises thermostat unit, display unit and data processing unit; Described temperature sensor is connected with described data processing unit with humidity sensor 5, and detectable signal is inputted; Described data processing unit sends described thermostat unit by instruction, and described display unit shows data; Described thermostat unit is connected with described ratio adjusting valve 6, controls the return pipe 9 of cooling coil 1.
Described VFC module 7 comprises thermostat unit, display unit and data processing unit; Described data processing unit is connected with thermostat unit and display unit, and described data processing unit sends control instruction, and described thermostat unit sends control command according to instruction to described ratio adjusting valve 6; Described display unit is for displays temperature, and VFC module 7 also comprises unit control cabinet described in moisture signal.
Concrete, described VFC module is high-precision programmable logic controller.
Described air-conditioning system comprises two temperature sensors, and one for being arranged on air outlet pipeline, detects the air outlet temperature sensor 3 of air temperature; Another portion is arranged on and treats in temperature adjustment room 8; Described two equal one end of temperature sensor are connected with described VFC single module 7.
Described centrifugal blower 2 and treat that the wind path between temperature adjustment room 8 comprises air outlet pipeline and air return pipeline; Described air outlet pipeline by the air outlet 2-2 of described centrifugal blower 2 with described in treat that the air outlet 8-1 in temperature adjustment room 8 is formed by connecting; Described air return pipeline treats that by described the return air inlet 8-2 in temperature adjustment room 8 and the air intake vent 2-1 of described centrifugal blower 2 are formed by connecting.
The air outlet 2-2 temperature of described centrifugal blower 2 is design temperature;
Described design temperature is not less than treats temperature adjustment room 8 predetermined temperatures and the determined dew-point temperature of humidity.
Described design temperature is than treating that the definite dew-point temperature of temperature adjustment room 8 predetermined temperatures and humidity is high 1～2 ℃.
Described return pipe 9 is relevant with refrigeration plant low-temperature receiver with feed pipe 10 water temperatures, and return pipe 9 water temperatures are 12 ℃ of left and right conventionally, and feed pipe 10 water temperatures are 7 ℃ of left and right.When need to be lower apparatus dew point temperature time, need to reduce refrigeration plant and supply water, be i.e. described feed pipe 10 water temperatures.
In a kind of energy-saving adjustable air volume anti-condensation air-conditioning system of the present utility model, the centrifugal blower 2 air intake vent 2-1 coil pipe 1 that is cooled separates, return air enters unit (comprising centrifugal blower 2, air intake vent 2-1, air outlet 2-2) from air intake vent 2-1, first pass through cooling coil 1, then enter centrifugal blower 2.Cooling coil 1 is to from treating that the air that temperature adjustment room 8 return air inlet 8-2 return carries out cooling processing, then through the pressurization of centrifugal blower 2, is sent back to and is treated temperature adjustment room 8 again by air outlet 8-1, treats temperature adjustment and treats that temperature adjustment room 8 lowers the temperature.Cooling coil 1 passes through return pipe 9 and the external low-temperature receiver of feed pipe 10, the in-built chilled water of feed pipe 10, and the air conditioning water that provides cooling coil 1 to need, in feed pipe 10, chilled water heats up and sends low-temperature receiver back to by return pipe 9 after cooling coil 1 cooling-air.Ratio adjusting valve 6 is arranged on chilled water return pipe 9, and the data that ratio adjusting valve 6 is transferred to VFC module 7 according to temperature sensor regulate chilled water output, and the air quantity that VFC module 7 is controlled centrifugal blower 2 simultaneously changes.
In the actual process of using, according to treating that temperature adjustment room 8 requires the humiture reaching (according to code requirement, GB50019-2003 heating and ventilation and In Air Conditioning Design standard or GB50736-2012 civil buildings heating ventilator and In Air Conditioning Design standard, or comfortableness or manufacturability require to determine) and treat that temperature adjustment room 8 their location outdoor air conditioners calculating humitures draw cooling load of air-condition, according to described cooling load of air-condition, carry out air-conditioning equipment type selecting, according to described, treat that temperature adjustment room 8 requires the indoor temperature reaching to determine dew-point temperature, dew-point temperature+1～2 are ℃ as air outlet 2-2, it is the design temperature of air outlet 8-1, according to described cooling load of air-condition and design temperature and treat that temperature adjustment room 8 requires the differential thermal calculation of the temperature that reaches to draw initial cycle air quantity.
Treat temperature adjustment room 8 temperature, it is return air temperature, by treating that temperature adjustment room 8 temperature sensors transmit data to VFC module 7, as treat temperature adjustment room 8 temperature over the temperature that requires to reach, strengthen centrifugal blower 2 air circulations, when treating that temperature adjustment room 8 temperature, lower than requiring temperature, reduce centrifugal blower 2 air circulations.To accomplish to guarantee the not minimal circulation air quantity under dewfall prerequisite of air outlet 8-1.
Temperature sensor detects and treats that temperature adjustment room 8 variations in temperature feed back to VFC module 7, control ratio water adjusting valve 6 apertures, corresponding adjustment centrifugal blower 2 air quantity, treat temperature adjustment room 8 increase in temperature, ratio water adjusting valve 6 is opened greatly, fan delivery is corresponding simultaneously increases, and guarantees that leaving air temp is not less than design temperature; Treat that temperature adjustment room 8 temperature reduce, ratio water adjusting valve 6 turns down, and fan delivery correspondence reduces, and guarantees that leaving air temp is still design temperature, and accomplishes energy-saving run.
When the humiture that requires to reach until temperature adjustment room 8 changes and causes after dew-point temperature change, readjust air outlet 2-2 design temperature, readjust initial cycle air quantity, the return air temperature for the treatment of temperature adjustment room 8 feeds back to VFC module 7 by temperature sensor, according to the data of VFC module 7, control ratio water adjusting valve 6 apertures, adjust centrifugal blower 2 air quantity, change the temperature for the treatment of temperature adjustment room 8, all the time guarantee that air outlet 2-2 leaving air temp is not less than the definite dew-point temperature of humiture for the treatment of that 8 requirements of temperature adjustment room reach, guarantee not dewfall of air outlet 2-2 and air outlet 8-1, and energy-saving run.
So-called dew-point temperature refers to that air is at moisture content and air pressure all under immovable condition, is cooled to corresponding temperature when saturated.Figuratively, temperature when airborne exactly steam becomes condensate water is dew-point temperature, also referred to as frost point temperature.
A kind of energy-saving adjustable air volume anti-condensation air-conditioning system of the present utility model, to process on the basis of end in conventional air, by adding Wind Volume, reduce enthalpy difference, air-treatment is required, on dew-point temperature, to make air wind pushing temperature higher than indoor environment dew-point temperature to indoor environment humiture.In summer, laboratory or public building are controlled temperature between 20～28 ℃ as treated temperature adjustment room 8, and humidity is between 40%～80%, and best working environment is that 25 ℃/60%(is the above-mentioned temperature for the treatment of that 8 requirements of temperature adjustment room reach.), now environment dew-point temperature is 16.7 ℃ (take certain Shelter in South China Cities summer air-conditioning design condition be example), as long as air outlet 8-1 temperature is not less than this value, system certainly can dewfall (in the process of practical operation, air outlet 8-1 and air outlet 2-2 are generally as same air port, namely air-conditioning system of the present utility model is to be arranged in the equipment for the treatment of in temperature adjustment room 8, or arrange near treat that temperature adjustment room 8 is equipment, therefore do not need to consider the temperature spread between air outlet 8-1 and air outlet 2-2, and adopt same temperature value, the temperature that is air outlet 8-1 and air outlet 2-2 all equals described design temperature).Can set 16.7 ℃ for minimum dew-point temperature limit value, get 1～2 ℃ of allowance, design temperature can be 17.7～18.7 ℃, and cooling coil leaving air temp is about 18 ℃.Meanwhile, due to outdoor, fill into that the resh air requirement for the treatment of temperature adjustment room 8 can change, outdoor environment humiture also can change, need refrigeration duty that air-treatment end bears in continuous variation, adjust air circulation in good time and can accomplish to save as much as possible fan energy consumption.
A kind of energy-saving adjustable air volume anti-condensation air-conditioning system of the present utility model, as shown in Figure 2, concrete control flow is as follows for control flow:
First basis treats that temperature adjustment room 8 requires the humiture reaching to determine dew-point temperature, thereby determines design temperature, i.e. the air outlet 2-2 temperature of centrifugal blower 2, and definite ratio adjusting valve 6 initial openings and centrifugal blower 2 air quantity, guarantee not dewfall of air outlet 2-2.Simultaneously, according to treating that the return air temperature value contrast indoor temperature that the interior temperature sensor in temperature adjustment room 8 and humidity sensor 5 sense sets value to regulate aperture size, when treating temperature adjustment room 8 temperature, be that return air temperature surpasses setting value+1～2 ℃, now ratio adjusting valve 6 is opened and is strengthened greatly load disposal ability, VFC module 7 frequencies are strengthened simultaneously, increase return air amount; In room, temperature is lower than-1～2 ℃ of setting values, now ratio adjusting valve 6 turns down to reduce load disposal ability, VFC module 7 frequencies are reduced simultaneously, reduce return air amount, guarantee that air outlet 2-2 temperature is still setting value, at air outlet 8-1, under the prerequisite of dewfall, do not accomplish energy-saving run as much as possible.When the temperature that requires to reach until temperature adjustment room 8 and humidity change, treat that temperature adjustment room 8 dew-point temperatures change, need to readjust the design temperature of the air outlet 2-2 of centrifugal blower 2, readjust initial cycle air quantity, repeat above-mentioned steps, all the time guarantee that leaving air temp is not less than indoor dew-point temperature, guarantee to treat not dewfall of temperature adjustment room 8 air outlet 2-2 and air outlet 8-1, and energy-saving run.
A kind of energy-saving adjustable air volume anti-condensation air-conditioning system of the present utility model, reduces enthalpy difference by strengthening air circulation, and air-treatment is required, on dew-point temperature, to make wind pushing temperature higher than indoor environment dew-point temperature to indoor environment humiture; By monitoring room humiture, change, adjust air circulation and save fan energy consumption.The utility model, by the accurate control and regulation to indoor circulation air-conditioning system, has solved the problem of southern Gao Regao Humid Area air outlet dewfall, and has accomplished energy-saving run as much as possible, for laboratory provides good operating environment.The utility model is applicable to public building and the hotel room of southern Gao Regao Humid Area simultaneously.
Accompanying drawing explanation
Fig. 1 is the energy-saving adjustable air volume anti-condensation of the utility model air-conditioning system schematic diagram and structural representation.
Fig. 2 is the energy-saving adjustable air volume anti-condensation of the utility model Air-condition system control flow chart.
Description of reference numerals:
1: cooling coil, 2: centrifugal blower, 2-1: air intake vent, 2-2: air outlet, 3: temperature sensor, 4, temperature sensor, 5: humidity sensor, 6: ratio adjusting valve, 7: VFC module, (no longer describe, cancel), 8: treat temperature adjustment room, 8-1: air outlet, 8-2: return air inlet, 9: return pipe, 10: feed pipe.
The specific embodiment
Below in conjunction with embodiment, further illustrate the utility model.
Embodiment 1
Take certain laboratory, Shelter in South China Cities summer air-conditioning system is example:
A kind of energy-saving adjustable air volume anti-condensation air-conditioning system as shown in Figure 1, is characterized in that:
It comprises cooling coil 1, centrifugal blower 2, at least one temperature sensor and humidity sensor 5, ratio adjusting valve 6 and VFC module 7;
Described cooling coil 1 comprises return pipe 9 and feed pipe 10, and described return pipe 9 and feed pipe 10 are communicated with low-temperature receiver respectively.
Described cooling coil 1 is connected with centrifugal blower 2;
Described centrifugal blower 2 by wind path with described in treat that temperature adjustment room 8 is communicated with; Described humidity sensor 5 is arranged on and treats in temperature adjustment room 8 with temperature sensor described at least one;
Described VFC module 7 comprises thermostat unit, display unit and data processing unit; Described temperature sensor is connected with described data processing unit with humidity sensor 5, and detectable signal is inputted; Described data processing unit sends described thermostat unit by instruction, and described display unit shows data; Described thermostat unit is connected with described ratio adjusting valve 6; Control the return pipe 9 of cooling coil 1.
Described VFC module 7 comprises thermostat unit, display unit and data processing unit; Described data processing unit is connected with thermostat unit and display unit, and described data processing unit sends control instruction, and described thermostat unit sends control command according to instruction to described ratio adjusting valve 6; Described display unit is for displays temperature, and VFC module 7 also comprises unit control cabinet described in moisture signal.
Described VFC module is high-precision programmable logic controller.
Described air-conditioning system comprises two temperature sensors, and one for being arranged on air outlet pipeline, detects the air outlet temperature sensor 3 of air temperature; Another portion is arranged on and treats in temperature adjustment room 8; Described two equal one end of temperature sensor are connected with described VFC single module 7.
Described centrifugal blower 2 and treat that the wind path between temperature adjustment room 8 comprises air outlet pipeline and air return pipeline; Described air outlet pipeline by the air outlet 2-2 of described centrifugal blower 2 with described in treat that the air outlet 8-1 in temperature adjustment room 8 is formed by connecting; Described air return pipeline treats that by described the return air inlet 8-2 in temperature adjustment room 8 and the air intake vent 2-1 of described centrifugal blower 2 are formed by connecting.
The air outlet 2-2 temperature of described centrifugal blower 2 is design temperature;
Described design temperature is not less than treats temperature adjustment room 8 predetermined temperatures and the determined dew-point temperature of humidity.
Described design temperature is than treating that the definite dew-point temperature of temperature adjustment room 8 predetermined temperatures and humidity is high 1～2 ℃.
The concrete control procedure design of above-mentioned air-conditioning system is as follows:
Certain laboratory treats that temperature adjustment room 8 control temperature are between 20～28 ℃, humidity is between 40%～80%, best working environment is 25 ℃/60%, described in, treat that temperature adjustment room 8 requires the humiture reaching, according to code requirement, GB50019-2003 heating and ventilation and In Air Conditioning Design standard or GB50736-2012 civil buildings heating ventilator and In Air Conditioning Design standard, or comfortableness or manufacturability require to determine, now treat that temperature adjustment room 8 environment dew-point temperatures are 16.7 ℃ and (generally according to thermohygrometer, directly find, also can be by measuring, built-in and the indoor best effort environment of the application's cooling system is dew point temperature value one to one), as long as air outlet 8-1 temperature is not less than this value, certainly can dewfall.16.7 ℃ is minimum dew-point temperature limit value, gets 1～2 ℃ of allowance, and design temperature can be 17.7～18.7 ℃, and (it is identical that air outlet 8-1 and the temperature of air outlet 2-2 are considered as, and is all design temperature to fetch and deliver air port 8-1 air-supply design temperature and be 18 ℃; Air-conditioning system of the present utility model also can directly be arranged in and treat that temperature adjustment room 8 is indoor, and air outlet 2-2 treats temperature adjustment room 8 air outlet 8-1).According to treating that the 8 humitures requirements of temperature adjustment room and the outdoor calculating humiture of summer air-conditioning value calculate cooling load of air-condition, be 13.0kW, air-conditioning equipment, by this load type selecting, is selected cooling coil.Standard cooling coil is (the nominal refrigerating capacity 13.5kW of general commercially available standard fan coil pipe) when refrigerating capacity is 13.5kW, and air circulation is 2380m
3/ h.If directly select this model cooling coil for treating 8 coolings of temperature adjustment room, the refrigeration duty of 13.0kW in decontamination chamber, wind pushing temperature is 15.0 ℃, lower than treating 16.7 ℃ of temperature adjustment room 8 environment dew-point temperatures, the inevitable dewfall of air outlet 8-1.This patent centrifugal blower 2 air outlet 2-2 and treat that temperature adjustment room 8 air outlet 8-1 design temperatures are 18 ℃, higher than treating 16.7 ℃ of temperature adjustment room 8 environment dew-point temperatures, can dewfall.According to supply air temperature difference (18 ℃ of air outlet 8-1 design temperatures and the temperature difference for the treatment of 25 ℃ of the operating ambient temperatures of temperature adjustment room 8 the bests) and treat temperature adjustment room 8 refrigeration duty 13.0kW, calculating air output is 4900m
3/ h.
While conventionally selecting cooling coil, according to summer air-conditioning design parameter, select, so refrigeration duty 13.0kW is now peak load, when cooling coil normally moves, seldom reach this limit value.When temperature adjustment room 8 refrigeration dutys are 10.0kW, calculating air output is 3770m
3/ h.When treating temperature adjustment room 8 temperature, return air temperature surpasses+1 ℃ of setting value, and now ratio adjusting valve 6 is opened and strengthened greatly load disposal ability, VFC module 7 frequencies is strengthened simultaneously, increases return air amount; In room, temperature is lower than-1 ℃ of setting value, now ratio adjusting valve 6 turns down to reduce load disposal ability, VFC module 7 frequencies is reduced simultaneously, reduces return air amount, guarantee air outlet 2-2 and treat that temperature adjustment room 8 air outlet 8-1 leaving air temps are still 18 ℃ of setting values, air outlet 8-1 is dewfall not.Air circulation is also controlled at and guarantees the not minimum of a value of dewfall of air outlet 8-1 simultaneously, accomplishes maximum energy-saving run.
When temperature adjustment room 8 indoor environments require to change, such as best effort Environmental adjustments is 26 ℃/60%, described in, treat that temperature adjustment room 8 requires the humiture reaching, now treat that temperature adjustment room 8 environment dew-point temperatures are 17.6 ℃, centrifugal blower 2 air outlet 2-2(are with air outlet 8-1 temperature) design temperature is adjusted into 19 ℃, treats that temperature adjustment room 8 refrigeration dutys are reduced to 9.0kW, and calculating air output is 3410m
3/ h, as initial cycle air quantity.Then repeat above automatic control operation, according to the difference of return air temperature and setting value, regulate ratio adjusting valve 6 and VFC module 7, change return air amount, guarantee not maximum energy-saving run under the prerequisite of dewfall of air outlet 8-1.By said process, can be found out, air-conditioning system of the present utility model is when until temperature adjustment room 8 refrigeration duty change with time, and its air circulation providing also changes with refrigeration duty, energy-saving run.
Claims (7)
1. an energy-saving adjustable air volume anti-condensation air-conditioning system, is characterized in that:
It comprises cooling coil (1), centrifugal blower (2), at least one temperature sensor and humidity sensor (5), ratio adjusting valve (6) and VFC module (7);
Described cooling coil (1) comprises return pipe (9) and feed pipe (10), and described return pipe (9) is communicated with described cooling coil (1) with low-temperature receiver respectively with feed pipe (10) and is connected with centrifugal blower (2);
Described centrifugal blower (2) by wind path with described in treat that temperature adjustment room (8) is communicated with; Described humidity sensor (5) and described at least one temperature sensor be arranged on and treat in temperature adjustment room (8);
Described VFC module (7) comprises thermostat unit, display unit and data processing unit;
Described temperature sensor is connected with described data processing unit with humidity sensor (5), and detectable signal is inputted; Described data processing unit sends described thermostat unit by instruction, and described display unit shows data; Described thermostat unit is connected with described ratio adjusting valve (6), controls the return pipe (9) of cooling coil (1).
2. a kind of energy-saving adjustable air volume anti-condensation air-conditioning system according to claim 1, is characterized in that:
Described VFC module (7) comprises thermostat unit, display unit and data processing unit; Described data processing unit is connected with thermostat unit and display unit, and described data processing unit sends control instruction, and described thermostat unit sends control command according to instruction to described ratio adjusting valve (6); Described display unit is for displays temperature, and VFC module (7) also comprises unit control cabinet described in moisture signal.
3. a kind of energy-saving adjustable air volume anti-condensation air-conditioning system according to claim 1 and 2, is characterized in that: described VFC module is high-precision programmable logic controller.
4. a kind of energy-saving adjustable air volume anti-condensation air-conditioning system according to claim 1, is characterized in that:
Described air-conditioning system comprises two temperature sensors, and one for being arranged on air outlet pipeline, detects the air outlet temperature sensor (3) of air temperature; Another portion is arranged on and treats in temperature adjustment room (8); Described two equal one end of temperature sensor are connected with described VFC single module (7).
5. a kind of energy-saving adjustable air volume anti-condensation air-conditioning system according to claim 1, is characterized in that:
Described centrifugal blower (2) and treat that the wind path between temperature adjustment room (8) comprises air outlet pipeline and air return pipeline; Described air outlet pipeline by the air outlet (2-2) of described centrifugal blower (2) with described in treat that the air outlet (8-1) of temperature adjustment room (8) is formed by connecting; Described air return pipeline treats that by described the return air inlet (8-2) of temperature adjustment room (8) and the air intake vent (2-1) of described centrifugal blower (2) are formed by connecting.
6. a kind of energy-saving adjustable air volume anti-condensation air-conditioning system according to claim 1, is characterized in that:
Air outlet (2-2) temperature of described centrifugal blower (2) is design temperature;
Described design temperature is not less than treats temperature adjustment room (8) predetermined temperature and the determined dew-point temperature of humidity.
7. a kind of energy-saving adjustable air volume anti-condensation air-conditioning system according to claim 6, is characterized in that:
Described design temperature ratio treat temperature adjustment room (8) predetermined temperature and the definite dew-point temperature of humidity high 1～2 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547642.4U CN203454321U (en) | 2013-09-04 | 2013-09-04 | Energy-saving type anti-condensation air-conditioning system with adjustable air volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547642.4U CN203454321U (en) | 2013-09-04 | 2013-09-04 | Energy-saving type anti-condensation air-conditioning system with adjustable air volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203454321U true CN203454321U (en) | 2014-02-26 |
Family
ID=50134190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320547642.4U Active CN203454321U (en) | 2013-09-04 | 2013-09-04 | Energy-saving type anti-condensation air-conditioning system with adjustable air volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203454321U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019510A (en) * | 2014-06-09 | 2014-09-03 | 西安工程大学 | Water-air radiant panel evaporative cooling air conditioning system provided with cold beam and used for data center |
| CN105202630A (en) * | 2015-08-28 | 2015-12-30 | 中山市绿涛电子科技有限公司 | Energy-saving air conditioner cooling system |
| CN108278734A (en) * | 2018-01-11 | 2018-07-13 | 广东美的制冷设备有限公司 | The control method and air conditioner of air conditioner |
| CN108375186A (en) * | 2018-01-31 | 2018-08-07 | 青岛海尔空调器有限总公司 | The method, apparatus and computer storage media of the anti-condensation control of air-conditioning |
| CN108413554A (en) * | 2018-01-31 | 2018-08-17 | 青岛海尔空调器有限总公司 | The method, apparatus and computer storage media of the anti-condensation control of air-conditioning |
| CN111623564A (en) * | 2020-02-20 | 2020-09-04 | 上海朗绿建筑科技股份有限公司 | Multi-cavity hydraulic module |
-
2013
- 2013-09-04 CN CN201320547642.4U patent/CN203454321U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019510A (en) * | 2014-06-09 | 2014-09-03 | 西安工程大学 | Water-air radiant panel evaporative cooling air conditioning system provided with cold beam and used for data center |
| CN105202630A (en) * | 2015-08-28 | 2015-12-30 | 中山市绿涛电子科技有限公司 | Energy-saving air conditioner cooling system |
| CN108278734A (en) * | 2018-01-11 | 2018-07-13 | 广东美的制冷设备有限公司 | The control method and air conditioner of air conditioner |
| CN108278734B (en) * | 2018-01-11 | 2020-09-25 | 广东美的制冷设备有限公司 | Control method of air conditioner and air conditioner |
| CN108375186A (en) * | 2018-01-31 | 2018-08-07 | 青岛海尔空调器有限总公司 | The method, apparatus and computer storage media of the anti-condensation control of air-conditioning |
| CN108413554A (en) * | 2018-01-31 | 2018-08-17 | 青岛海尔空调器有限总公司 | The method, apparatus and computer storage media of the anti-condensation control of air-conditioning |
| CN111623564A (en) * | 2020-02-20 | 2020-09-04 | 上海朗绿建筑科技股份有限公司 | Multi-cavity hydraulic module |
| CN111623564B (en) * | 2020-02-20 | 2021-08-24 | 上海朗绿建筑科技股份有限公司 | Multi-cavity hydraulic module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203454321U (en) | Energy-saving type anti-condensation air-conditioning system with adjustable air volume | |
| CN103512155B (en) | A kind of air conditioning control method and Controlling System | |
| CN105352109B (en) | VAV box temperature control system and method based on weather compensation | |
| US9702578B2 (en) | Air conditioning control system for controlling outside air control and return air control of air conditioning system | |
| CN106440222B (en) | Clean air-conditioning system and its control method | |
| KR100933515B1 (en) | Energy saving thermo-hygrostat using coolants in cooling tower and its controlling method thereof | |
| CN203310050U (en) | Variable air volume dew-point controlled air conditioning system | |
| CN103245036B (en) | A kind of system and method for micro-process air conditioning | |
| CN103277571A (en) | Dynamic return water temperature flow regulating valve | |
| CN204730411U (en) | Central air conditioning cooling water system energy-saving controller | |
| CN103047740A (en) | Method for reducing water flow of air conditioning system and dynamic temperature difference flow regulating valve | |
| CN103673107A (en) | Air conditioner and control method and device thereof | |
| CN204853680U (en) | Air conditioner with constant temperature and humidity | |
| CN104913393A (en) | Constant-temperature constant-humidity air conditioner | |
| CN104296329B (en) | High-precision standard laboratory with constant temperature and constant humidity control system | |
| CN104456835A (en) | Passive room intelligent control system | |
| CN202119046U (en) | Constant-temperature constant-humidity air conditioner intelligent network energy-saving system | |
| CN102213477A (en) | Intelligent network energy conservation system for constant temperature and humidity air conditioner | |
| CN107940698B (en) | The cold station air-conditioning system of integrated form and its control method | |
| CN105135552A (en) | Air conditioner system | |
| CN104101061A (en) | Indoor temperature and humidity regulating device | |
| CN204830332U (en) | Capillary system controller | |
| CN105115033B (en) | A kind of energy saving air-return air conditioner and its control method | |
| CN203231463U (en) | Indoor temperature/humidity regulation unit | |
| CN203704192U (en) | Air conditioning water system of hospital building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |