CN203586485U - Return air cooling energy-saving device of central air conditioner - Google Patents
Return air cooling energy-saving device of central air conditioner Download PDFInfo
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- CN203586485U CN203586485U CN201320687881.XU CN201320687881U CN203586485U CN 203586485 U CN203586485 U CN 203586485U CN 201320687881 U CN201320687881 U CN 201320687881U CN 203586485 U CN203586485 U CN 203586485U
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- 238000001816 cooling Methods 0.000 title claims abstract description 73
- 238000004378 air conditioning Methods 0.000 claims description 39
- 208000011580 syndromic disease Diseases 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a return air cooling energy-saving device of a central air conditioner. The return air cooling energy-saving device of the central air conditioner comprises a first air return pipe and a second air return pipe, wherein the first air return pipe and the second air return pipe are installed between an air return section of an air conditioner room and an air return section of a central air conditioner air processor in parallel; the first air return pipe is provided with an air return valve; the second air return pipe is provided with an outdoor return air cooler; a cooling air valve is arranged at an inlet of the outdoor return air cooler; the air return valve and the cooling air valve are controlled through a controller connected with the air return valve and the cooling air valve; an inlet of the first air return pipe is provided with a return air temperature and humidity sensor; an outlet of the outdoor return air cooler is provided with a cooled air temperature and humidity sensor; a return air and fresh air mixing temperature and humidity sensor is arranged in front of an inlet of the central air conditioner air processor; a supplied air temperature and humidity sensor is arranged at an outlet of the central air conditioner air processor. The return air cooling energy-saving device of the central air conditioner cools the room by effectively utilizing the outdoor low-temperature air, and meanwhile can ensure a certain relative humidity in the air conditioner room to save energy.
Description
Technical field
The utility model relates to air-conditioning system, relates in particular to a kind of central air conditioner system in the winter time under the condition of outdoor low temperature drying, the central air-conditioning return air cooling and energy conserving device that makes full use of outdoor Cryogenic air and the return air of central air-conditioned room is carried out to cooling down moisturizing.
Background technology
In the air-conditioned room that has constant temperature and humidity (general temperature t: 24 ℃ ± 2 ℃, relative temperature φ: in the time of 60% ± 5%), in indoor radiating amount, exist larger in the situation that, often at outside air temperature, during lower than 10 ℃, also to start refrigeration machine and carry out cooling.
In the central air conditioner system of air conditioning terminal that is designed with two blower fans, under this meteorological condition (outside air temperature lower than 10 ℃ time), in order to reach energy-conservation object (or not driving refrigeration machine), often adopt increasing exhaust air rate and resh air requirement to reach the object of room temperature lowering, but have in the air-conditioned room of constant temperature and humidity requirement, now, brought again another one problem, due to a large amount of air drafts of air-conditioned room and filling into of new wind, and the new wind in winter is often relatively dried (relative humidity is relatively low), cause a large amount of of moisture content in air-conditioned room to scatter and disappear, now, in order to maintain constant relative humidity, should strengthen again humidification amount, and adopt popular steam humidification at present, also the temperature rise of air-supply will be caused.
For this reason, in order to keep temperature, the humidity of air-conditioned room of constant temperature and humidity, in the winter time under the meteorological condition of outdoor low temperature drying, and when quantity of heat production is relatively large again in air-conditioned room, also will start refrigeration machine, air conditioning terminal is a large amount of humidifications again, and this will cause the transition consumption of the energy undoubtedly.The Chinese patent that is 202598725U as publication number discloses a kind of dual system Integral computer-room energy-saving type air conditioner, energy-saving type air conditioner comprises control monitoring system, double compressor system and VMC, VMC comprises the outdoor new wind filter being fixed in indoor machine cabinet, outdoor new wind electric control valve, fire resisting damper, indoor return air filter, indoor return air electric control valve, refrigerating plant and main air blower are filtered in wet film air wetting, outdoor Cryogenic air is by outdoor new wind filter, outdoor new wind electric control valve, fire resisting damper, indoor return air is by indoor return air filter, indoor return air electric control valve, both are in indoor machine cabinet internal mix, by wet film air wetting, filtering refrigerating plant humidification filters, by main air blower, send into machine room again.The dual system Integral computer-room energy-saving type air conditioner of this patent, by fresh air refrigerating and the effective combination of compressor cooling two cover system, has accomplished same unit, the refrigeration modes that Various Seasonal is different, but power consumption is large.
Publication number is that the Chinese patent of CN102418989A discloses the air-conditioner with new type heat exchanger, comprise compressor, condenser, throttling arrangement, evaporimeter, in casing, by median septum, be divided into epicoele and cavity of resorption, evaporimeter is arranged on epicoele, condenser is arranged on cavity of resorption, on described median septum, be provided with return duct, return duct is provided with door regulating plate, also comprise air-to-air total heat exchanger, described air-to-air total heat exchanger is provided with the first air channel and the second air channel, described the first air channel and return duct, air port, indoor is communicated with, described the second air channel is communicated with the heat exchanging air duct of condenser, described the first air channel interlocks and does not communicate with the second air channel.The present invention utilizes full heat-heat exchanger to realize indoor-outdoor air heat exchange, and do not mix mutually, when in outdoor low temperature chamber during high temperature, utilize outdoor air to room air, carry out cooling and do not allow outdoor air enter indoor circulation, keep indoor air clean, ensure the safety and effectivity operation of indoor electronic electrical equipment.
Utility model content
The utility model provides a kind of central air-conditioning return air cooling and energy conserving device, when effectively using outdoor Cryogenic air to lower the temperature to room, guaranteed again the relative humidity that air-conditioned room is certain, in the prerequisite of the air-conditioned room moisture content that do not scatter and disappear, be issued to the object of cooling down, and reduce humidification amount simultaneously, reach energy-conservation object.
A kind of central air-conditioning return air cooling and energy conserving device, comprising:
Comprise the first backwind tube parallel with one another and the second backwind tube that are installed between air-conditioned room air return section and central air-conditioning air processing machine air return section, the first backwind tube is provided with air returning valve; The second backwind tube is provided with outdoor recirculated air cooler, and the porch of this outdoor recirculated air cooler is provided with cooling air-valve; Described air returning valve and described cooling air-valve are by connected controller control;
Described the first backwind tube porch is provided with return air Temperature Humidity Sensor, described outdoor recirculated air cooler exit is provided with cooling rear aerial temperature and humidity sensor, before described central air-conditioning air processing machine entrance, be provided with the mixed wind-warm syndrome humidity sensor of the new wind of return air, described central air-conditioning air processing machine exit is provided with air-supply Temperature Humidity Sensor.
Described controller is connected on central air-conditioning air processing machine.By central air-conditioning air processing machine, whole system is unified to control, be beneficial to operation.
This air-conditioning return air cooling and energy conserving device can regulate the return air amount that enters this outdoor recirculated air cooler automatically according to the temperature of air-conditioned room, also by air returning valve, cooling air-valve regulate direct return air with need be through the return air ratio of this outdoor recirculated air cooler, reach the effect of cooling moisture-retaining, thereby finally reach the object of energy-saving and emission-reduction.
If this central air-conditioning need to carry out Air exhaust, between the entrance of so described outdoor recirculated air cooler and the second backwind tube entrance, be provided with exhaust outlet, exhaust outlet is provided with exhaust valve, for discharging a part of air-conditioned room return air out.
Described exhaust valve is connected with described controller and is subject to this controller control.
By exhaust valve and new air-valve, air-conditioned room return air is out taken a breath, often for new, fresh and clean to guarantee room air.
If this central air-conditioning need to be inputted new wind, between the outlet of so described outdoor recirculated air cooler and the outlet of the second backwind tube, be provided with fresh wind port, fresh wind port is provided with new air-valve, for inputting extraneous fresh air, is flowing to the air return section of central air conditioner system after fresh air is mixed with return air.
Described new air-valve is connected with described controller and is subject to this controller control.
Described air returning valve, exhaust valve, new air-valve and cooling air-valve are broad sense air-valve, comprise various structures, can be board plug type, roller shutter type or vane type etc., its objective is that the size by regulating draught area regulates ventilation.
Described outdoor recirculated air cooler, comprise various structures, can be square, circular or plug-in forced heat radiation in the type of cooling of one, described outdoor recirculated air cooler is also equipped with blower fan outward, its objective is to make to manage air-conditioning return air that interior temperature is relatively high and the lower air of outside air temperature carries out heat exchange, thereby reach the temperature that reduces air-conditioning return air and the object that does not affect its humidity.
Described outdoor recirculated air cooler is comprised of m × n root cooling tube, m>1, n>1, the wide and Gao Jun≤150mm in the cross section of every cooling tube, cooling tube length≤10000m.
Wide and the Gao Jun≤50mm in the cross section of described every cooling tube, the length≤2000m of described cooling tube.
When described cooling tube appearance adopts forced heat radiation form (as additional blower fan), the length≤1000m of described cooling tube.
On the air return section of described air-conditioned room, be also connected with return air fan, for utilizing blower fan to be transported to exhaust duct air-conditioned room air out, can from exhaust valve, discharge simultaneously.
Utilize the method for above-mentioned central air-conditioning return air cooling and energy conserving device, comprise: a return air part in air conditioning chamber is flowed to outdoor recirculated air cooler by the second backwind tube and cool, return air, the supplementary new wind that enters of another part by the first backwind tube and after cooling flows to central air-conditioning air processing machine after being mixed together.
The beneficial effects of the utility model are:
The relatively existing air-conditioning system of the utility model has increased outdoor recirculated air cooler, the in the situation that of outdoor low temperature, by outdoor recirculated air cooler, return air is lowered the temperature, and guaranteed the humidity requirement in air-conditioned room, the utility model can meet the effect of air-conditioned room constant temperature and humidity.In addition, the utility model can be according to the control to air returning valve, new air-valve, cooling air-valve etc., and by the control of new air returning ratio, is not affecting whole central air conditioner system stable in the situation that, reaches the effect of constant temperature and humidity.
Accompanying drawing explanation
Fig. 1 is basic structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of outdoor recirculated air cooler of the present utility model; The front view that wherein Fig. 2 a is outdoor recirculated air cooler; Fig. 2 b is the cutaway view along o-o line in Fig. 2 a;
Wherein: 1, the first backwind tube; 2, the second backwind tube; 3, air returning valve; 4, exhaust valve; 5, new air-valve; 6, cooling air-valve; 7, outdoor recirculated air cooler; 8, air-conditioned room; 9, return air fan; 10, central air-conditioning air processing machine; 11, new air-valve; 12, exhaust outlet; 13, fresh wind port; 14, air outlet; 15, cooling tube; A1, return air Temperature Humidity Sensor; A2, cooling rear aerial temperature and humidity sensor; A3, cooling rear air and the mixed wind-warm syndrome humidity sensor of new wind; A4, the mixed wind-warm syndrome humidity sensor of the new wind of return air; A5, new wind-warm syndrome humidity sensor; A6, air-supply Temperature Humidity Sensor; A, cooling tube are wide; B, cooling tube are high; L, cooling tube length.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is made a detailed explanation.
As shown in Figure 1: this device comprises the first backwind tube 1 parallel with one another and the second backwind tube 2 that are installed between air-conditioned room 8 air return sections and central air-conditioning air processing machine 10 air return sections, the first backwind tube 1 be provided with on air returning valve 3, the second backwind tubes 2 with exhaust outlet 12, fresh wind port 13 and be arranged on exhaust outlet 12 and fresh wind port 13 between outdoor recirculated air cooler 7 on pipeline; Exhaust outlet 12 places are provided with exhaust valve 4, and fresh wind port 13 places are provided with new air-valve 5, are provided with cooling air-valve 6 before outdoor recirculated air cooler 7.Air-conditioned room 8 air return section is out provided with return air fan 9, the return air inlet place of return air fan 9 is provided with return air Temperature Humidity Sensor A1, between outdoor recirculated air cooler 7 and fresh wind port 13, be provided with cooling rear aerial temperature and humidity sensors A 2, in the second backwind tube, be provided with cooling rear air and the mixed wind-warm syndrome humidity sensor A3 of new wind, fresh wind port 13 places are provided with new wind-warm syndrome humidity sensor A5, before central air-conditioning air processing machine 10 entrances, be provided with the mixed wind-warm syndrome humidity sensor A4 of the new wind of return air, air outlet 14 places that central air-conditioning air processing machine 10 exports are provided with air-supply Temperature Humidity Sensor A6.Exhaust valve 4, new air-valve 5, cooling air-valve 6 and air returning valve 3 are by being connected and controlling the controller adjusting aperture of each valve opening with it, controller is connected on central air-conditioning air processing machine 10, and by central air-conditioning air processing machine 10, controller is unified to control.
As shown in Figure 2, in Fig. 2 a, outdoor recirculated air cooler 7 is comprised of a large amount of cooling tubes, in Fig. 2 b, cooling tube is comprised of m × n root cooling tube 15, m>1, n>1, wherein the wide A in the cross section of every cooling tube 15 and high B all≤150mm, cooling tube 15 length L≤10000m.If the wide A in the cross section of every cooling tube 15 and high B all≤50mm, the length L≤2000m of cooling tube 15.And, outside outdoor recirculated air cooler 7, added after blower fan, make it adopt forced heat radiation form, the length L of cooling tube 15 can be contracted in 1000m.
This device utilizes return air Temperature Humidity Sensor A1, cooling rear aerial temperature and humidity sensors A 2, cooling rear air to gather the humiture in site separately with the mixed wind-warm syndrome humidity sensor A3 of new wind, the mixed wind-warm syndrome humidity sensor A4 of the new wind of return air, new wind-warm syndrome humidity sensor A5 and air-supply Temperature Humidity Sensor A6, and the humiture collecting is compared to judgement, then by the controller being connected on central air-conditioning processor 10, new air-valve 5, cooling air-valve 6, air returning valve 3, exhaust valve 4 are carried out to aperture control, keep the temperature and humidity requirement in air-conditioned room 8.The controller of this device adopts Programmable Logic Controller+I/O module (or DDC).
Claims (8)
1. a central air-conditioning return air cooling and energy conserving device, is characterized in that, comprising:
Be installed on the first backwind tube (1) parallel with one another and the second backwind tube (2) between air-conditioned room (8) air return section and central air-conditioning air processing machine (10) air return section, the first backwind tube (1) is provided with air returning valve (3); The second backwind tube (2) is provided with outdoor recirculated air cooler (7), and the porch of this outdoor recirculated air cooler (7) is provided with cooling air-valve (6); Described air returning valve (3) and described cooling air-valve (6) are by connected controller control;
Described the first backwind tube (1) porch is provided with return air Temperature Humidity Sensor (A1), described outdoor recirculated air cooler (7) exit is provided with cooling rear aerial temperature and humidity sensor (A3), before described central air-conditioning air processing machine (10) entrance, be provided with the mixed wind-warm syndrome humidity sensor (A4) of the new wind of return air, described central air-conditioning air processing machine exit is provided with air-supply Temperature Humidity Sensor (A6).
2. central air-conditioning return air cooling and energy conserving device according to claim 1, it is characterized in that, between the entrance of described outdoor recirculated air cooler (7) and the second backwind tube (2) entrance, be provided with exhaust outlet (12), exhaust outlet (12) is provided with exhaust valve (4), for discharging a part of air-conditioned room (8) return air out.
3. central air-conditioning return air cooling and energy conserving device according to claim 2, is characterized in that, described exhaust valve (4) is connected with described controller and is subject to this controller control.
4. central air-conditioning return air cooling and energy conserving device according to claim 1, it is characterized in that, between the outlet of described outdoor recirculated air cooler (7) and the second backwind tube (2) outlet, be provided with fresh wind port (13), fresh wind port (13) is provided with new air-valve (11), for inputting extraneous fresh air.
5. central air-conditioning return air cooling and energy conserving device according to claim 4, is characterized in that, described new air-valve (11) is connected with described controller and is subject to this controller control.
6. central air-conditioning return air cooling and energy conserving device according to claim 1, it is characterized in that, described outdoor recirculated air cooler (7) is comprised of m × n root cooling tube (15), m>1, n>1, wide (A) in the cross section of every cooling tube (15) and high (B) all≤150mm, cooling tube (15) length (L)≤10000m.
7. central air-conditioning return air cooling and energy conserving device according to claim 6, is characterized in that, wide (A) of described every cooling tube (15) and high (B) all≤50mm, length (the L)≤2000m of described cooling tube (15).
8. central air-conditioning return air cooling and energy conserving device according to claim 7, is characterized in that, length (the L)≤1000m of described cooling tube (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687881.XU CN203586485U (en) | 2013-11-01 | 2013-11-01 | Return air cooling energy-saving device of central air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687881.XU CN203586485U (en) | 2013-11-01 | 2013-11-01 | Return air cooling energy-saving device of central air conditioner |
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| CN203586485U true CN203586485U (en) | 2014-05-07 |
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| CN201320687881.XU Expired - Lifetime CN203586485U (en) | 2013-11-01 | 2013-11-01 | Return air cooling energy-saving device of central air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627526A (en) * | 2016-03-23 | 2016-06-01 | 核工业理化工程研究院华核新技术开发公司 | Automatic temperature and humidity control device of energy-saving air pretreatment system |
| CN110966662A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
-
2013
- 2013-11-01 CN CN201320687881.XU patent/CN203586485U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627526A (en) * | 2016-03-23 | 2016-06-01 | 核工业理化工程研究院华核新技术开发公司 | Automatic temperature and humidity control device of energy-saving air pretreatment system |
| CN110966662A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
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Granted publication date: 20140507 |