CN203010779U - Air treatment system for cleaning operating departments by fixed-proportion secondary return air - Google Patents
Air treatment system for cleaning operating departments by fixed-proportion secondary return air Download PDFInfo
- Publication number
- CN203010779U CN203010779U CN 201220721160 CN201220721160U CN203010779U CN 203010779 U CN203010779 U CN 203010779U CN 201220721160 CN201220721160 CN 201220721160 CN 201220721160 U CN201220721160 U CN 201220721160U CN 203010779 U CN203010779 U CN 203010779U
- Authority
- CN
- China
- Prior art keywords
- air
- section
- return air
- segment
- secondary return
- 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.)
- Expired - Lifetime
Links
- 238000011282 treatment Methods 0.000 title claims abstract description 18
- 238000004140 cleaning Methods 0.000 title abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims description 11
- 241000700647 Variola virus Species 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 238000004378 air conditioning Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000001356 surgical procedure Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model relates to an air treatment system for cleaning operating departments by fixed-proportion secondary return air and relates to the technical field of air treatment. The air treatment system for cleaning operating departments by fixed-proportion secondary return air comprises a fresh air circulating unit connected to a fresh air filter box. The fresh air filter box is sequentially connected with a primary return air segment, a surface cooling segment, a secondary return air segment, a fan segment and an even flow segment through a pipeline. The even flow segment comprises a medium filter segment, a heating segment, a humidifying segment and an outlet segment. The outlet segment is connected to an operating room through a pipeline and a laminar flow ceiling efficient filter segment. An air outlet at the top of the operating room is connected to outside through a pipeline, a fireproof adjusting valve and a blower. An air outlet at the bottom of the operating room is respectively connected to the primary return air segment and the secondary return air segment through a pipeline, the fireproof adjusting valve and an airflow adjusting valve. The primary return air volume is determined according to the return air volume required for actual conditioning treatment and is maintained unchanged throughout the year, heat offset is avoided greatly, and control is facilitated.
Description
Technical field
The utility model relates to the air-treatment technical field, is specifically related to a kind of fixed proportion secondary return air clean operation department air treatment system.
Background technology
Traditional air-conditioning system adopts the primary retirn air mode, causes a large amount of cold-hot counteractions, wastes energy.The characteristics of clean air-conditioning system are that air quantity is large, heat moisture ratio is large, and supply air temperature difference is little, adopt primary retirn air will need a large amount of heats again, not only waste cold, also wasted heat.
Surgery air-treatment scheme comparatively commonly used can be divided into primary retirn air and secondary return air (or bypass) two classes according to the return air number of times of Cycle Unit at present.If in conjunction with the various combination sequence of each air-treatment section, its kind can reach tens of kinds more than again, the below introduces several air-conditioning processing schemes commonly used.
1. the new wind primary retirn air air-conditioning processing scheme of asking for
Because the operating room air output is very large, supply air temperature difference is very little, adopts primary retirn air to need a large amount of heats again, produces serious cold-hot counteraction.Advantage is that control is very convenient.
2. the new wind secondary return air air-conditioning processing scheme of asking for
For the serious cold-hot counteraction of operating room system, also there are indivedual cleaning systems to attempt using automatic ratio to control secondary return air in operating room.Because the air-valve control accuracy of secondary return air is not high, control again water valve simultaneously, complicated being difficult to of or control system unreasonable because of control mode realizes eventually, result is not used widely.
3. concentrate new wind to process, circulator one or secondary return air air-conditioning processing scheme
Central fresh air handling can reduce the new wind opening of outside, and it is convenient that new blower fan group is changed Filter management.But in case new blower fan group breaks down, will affect whole Surgery and use.Therefore, adopt the air-conditioning system of concentrating new wind to process should adopt two blower fan air-conditioning units.
4. concentrate new wind degree of depth dehumidification treatments, circulator dry cooling condition processing scheme
Bear with new wind the cold-hot counteraction that indoor humidity load avoids the torrid zone again, can make again Cycle Unit realize the solution of dry cooling condition operation.This thinking can realize theoretically, but following problem is arranged in Practical Project: due in Surgery often a plurality of operating room Cycle Unit share a new blower fan group, in this case, can't adapt to the fluctuation that each operating room humidity load increases generation by regulating new wind processing parameter.Deciding resh air requirement can't realize because predicting the humidity load recruitment; Becoming resh air requirement certainly will cause robot control system(RCS) complicated.In addition, because the supply water temperature that new wind requires is too low, air-cooled coil pipe should be set simultaneously, increase the trouble point, the fault rate of Air cooler is higher, and new blower fan group focuses on, in case break down, can affect the operation of whole Surgery system air conditioner.Adopt this scheme, air-conditioning system that should new return air ratio is close is concentrated a new blower fan group, the new wind rationing of Cycle Unit.Therefore because Cycle Unit does not have the ability of dehumidifying, new wind must be by the operating room of humidity load maximum as the control point of processing.Other operating rooms come controlled humidity by humidification, by heating or refrigeration control temperature, the energy dissipation phenomenon are arranged equally.
Be CN2859313Y as publication number, disclose a kind of secondary return air constant temperature and humidity and purified unit, and publication number is CN201059698Y, a kind of independence return type second air return system is disclosed, these two patents all relate to secondary return air system, but it all can't accomplish fine adjustment, and energy waste is larger.
The utility model content
It is a kind of simple in structure that technical problem to be solved in the utility model is to provide, and can greatly reduce the fixed proportion secondary return air clean operation department air treatment system of energy consumption.
Technical problem to be solved in the utility model realizes by the following technical solutions:
a kind of fixed proportion secondary return air clean operation department air treatment system, it is characterized in that: comprise new wind Cycle Unit, described new wind Cycle Unit is connected to new wind Rose Box, described new wind Rose Box is connected with the primary retirn air section in turn through pipeline, surface cooling section, the secondary return air section, fan section and flow equalization section, described flow equalization section comprises the medium air filtration section, bringing-up section, humidifier section and wind outlet section, described wind outlet section is connected to operating room by pipeline through laminar flow smallpox high efficiency filter section, described operating room top outlet inlet is connected to outdoor by pipeline through fire-preventino regulating valve and air blast, described operating room bottom air outlet is connected respectively to primary retirn air section and secondary return air section by pipeline through fire-preventino regulating valve and volume damper, the outdoor new wind that new wind Cycle Unit will be sent into is through after new wind Rose Box three-stage filtration, mix with primary retirn air, enter surface cooling section after mixing and carry out hot wet process to dew-point temperature, mix with secondary return air again and enter flow equalization section by fan section and carry out medium air filtration, heating, add wet process, be reached for and deliver to operating room after satisfying the due new ventilation state of room air state requirement, send in operating room through laminar flow smallpox high efficiency filter air outlet.
Be provided with the microperforated panel muffler between described laminar flow smallpox high efficiency filter section and wind outlet section.
Be equipped with Temperature Humidity Sensor on the backwind tube of described secondary return air section, described Temperature Humidity Sensor is connected to controller by wired or wireless mode, and described controller is provided with information and regulates panel, and described controller drives volume damper.
the utility model is that the new wind of Surgery Cycle Unit and total return air are all immobilized, system can regulate one automatically according to the variation of operating room load, the secondary return air air quantity, guarantee that total return air amount fixes, be provided with temperature sensor and volume damper on the secondary returning airduct, when indoor waste heat (wetting) quantitative change, can regulate panel by information and regulate parameter, temperature sensor on backwind tube is experienced the size of controlled variable, and output signal to controller, in the situation that total blast volume remains unchanged, controller is regulated the secondary returning air quantity according to the signal driver volume damper of temperature sensor output, ventilation state point is changed, to guarantee required room air parameter, the new wind of Cycle Unit and total return air all immobilize, establish the adjusting air quantity valve on the secondary return air branch road, both can play the fixedly effect of primary retirn air and secondary returning air quantity, be beneficial to again the resistance balance of primary retirn air and secondary return air.
Native system adopts the new wind of asking for, new wind only carries out three-stage filtration, circulation air conditioner fixed proportion secondary return air mode, be fit to use the larger air-conditioning system of air quantity, generally use the system more than 10,000 air quantity, such as one-level operating room, ICU, air-conditioning auxiliary room etc., energy is saved again in both stable and reliable operations of system.
The beneficial effects of the utility model are: the utility model is determined the primary retirn air amount according to the needed return air amount of the hot wet process of reality, and to fix this air quantity constant the whole year, both avoided a large amount of cold-hot counteractions, be beneficial to again control, simultaneously, because the air face velocity through sub-cooling coil reduces greatly, be conducive to hot wet process; The new wind of Cycle Unit and total return air all immobilize, and establish the adjusting air quantity valve on the secondary return air branch road, both can play the fixedly effect of primary retirn air and secondary returning air quantity, are beneficial to again the resistance balance of primary retirn air and secondary return air.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
as shown in Figure 1, a kind of fixed proportion secondary return air clean operation department air treatment system, comprise new wind Cycle Unit, new wind Cycle Unit is connected to new wind Rose Box 1, new wind Rose Box 1 is connected with primary retirn air section 2 in turn through pipeline, surface cooling section 3, secondary return air section 4, fan section 5 and flow equalization section 6, flow equalization section 6 comprises the medium air filtration section, bringing-up section, humidifier section and wind outlet section, wind outlet section is connected to operating room 8 by pipeline through laminar flow smallpox high efficiency filter section 7, operating room 8 top outlet inlets are connected to outdoor by pipeline through fire-preventino regulating valve 9 and air blast 10, operating room 8 bottom air outlets are connected respectively to primary retirn air section 2 and secondary return air section 4 by pipeline through fire-preventino regulating valve 9 and volume damper 11, the outdoor new wind that new wind Cycle Unit will be sent into is through after new wind Rose Box 1 three-stage filtration, mix with primary retirn air, enter surface cooling section 3 after mixing and carry out hot wet process to dew-point temperature, mix with secondary return air again and enter flow equalization section 6 by fan section 5 and carry out medium air filtration, heating, add wet process, be reached for and deliver to operating room after satisfying the due new ventilation state of room air state requirement, send in operating room 8 through laminar flow smallpox high efficiency filter section 7 air outlets.Be provided with microperforated panel muffler 12 between laminar flow smallpox high efficiency filter section 7 and wind outlet section.Be equipped with Temperature Humidity Sensor on the backwind tube of secondary return air section, Temperature Humidity Sensor is connected to controller by wired or wireless mode, and controller is provided with information and regulates panel, and controller drives volume damper.
The below applies to the fixed proportion secondary return air technology of clean operation department I level Operating Room Design the new wind of asking for, and new wind only carries out three-stage filtration, describes for example in the Cycle Unit air-conditioning system:
Characteristics for I level operating room and clean attached room air-conditioning: air quantity is large, refrigeration duty is less, if adopt the reheat load that in the situation of common primary retirn air, the air-conditioning unit is needed larger, therefore the loss that cold-hot counteraction brings is larger,
Designed thus the fixed proportion secondary return air, new wind and primary retirn air mixing are carried out hot wet process to dew-point temperature, mix with secondary return air again and reach the wind pushing temperature air-supply, saved in this way electricity heat again, avoided a large amount of cold-hot counteractions, simultaneously a coil pipe is diminished, whole Surgery system cold is saved greatly, reduced school's operating cost.
Outdoor new wind is through after new wind Rose Box three-stage filtration, mix with primary retirn air, enter surface cooling section after mixing and carry out hot wet process to dew-point temperature, be mixed into the blower fan flow equalization section with secondary return air again and carry out medium air filtration, heat, add wet process and be reached for and deliver to I level operating room after satisfying the due new ventilation state of room air state requirement, send into indoor through laminar flow smallpox high efficiency filter air outlet.
Fixed proportion secondary return air technology can apply to the clean operation department air-treatment scheme of asking for new wind or central fresh air handling, the air-conditioning section is also according to the actual conditions setting, and the air-conditioning section of the secondary return air that this I level operating room adopts is effect warming and humidifying wind outlet section in primary retirn air section, surface cooling section, secondary return air section, fan section, current-sharing.
The fixed proportion secondary return air is provided with robot control system(RCS):
Operating room air-conditioning humiture adopts that constant temperature and humidity is controlled, pressure reduction is controlled and considers that humidity preferentially controls, temperature-humidity signal is delivered to controller by being located at the backwind tube Temperature Humidity Sensor with signal, automatically regulate volume damper and humidifier by controller, control humiture in scope of design.
When indoor waste heat (wetting) quantitative change, can regulate parameter by the information panel, the temperature sensor on backwind tube is experienced the size of controlled variable, and outputs signal to the parts of adjuster.
In the situation that total blast volume remains unchanged, controller is regulated the secondary returning air quantity according to the signal driver volume damper of sensor output, ventilation state point is changed, to guarantee required room air parameter.
System is provided with the temperature rise hot coil, adopt on off control, auxiliary heat again as winter, the fixed proportion secondary return air calculates the suitable heat again that saves, this temperature rise hot coil is in order to ensure institute of system calorific requirement in winter, when secondary return air can not meet indoor temperature, can open voluntarily, close voluntarily after additional heat, play safety effect.
When the difficult point that adopts secondary return air is debugging, the determining of a secondary return air ratio, this must through the calculating of science, by arm air-quantity measuring adjusting air valve, guarantee that ratio is suitable.
The effect analysis of fixed proportion secondary air-return energy-saving, and the energy-conservation comparison between calculation results of primary retirn air (take I level operating room as example):
Table one: one-level operating room calculating parameter
Table two: one-level operating room primary retirn air in summer and secondary return air energy consuming ratio are
Can find out from table one and table two, the fixed proportion secondary return air has obvious energy-saving effect.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. fixed proportion secondary return air clean operation department air treatment system, it is characterized in that: comprise new wind Cycle Unit, described new wind Cycle Unit is connected to new wind Rose Box, described new wind Rose Box is connected with the primary retirn air section in turn through pipeline, surface cooling section, the secondary return air section, fan section and flow equalization section, described flow equalization section comprises the medium air filtration section, bringing-up section, humidifier section and wind outlet section, described wind outlet section is connected to operating room by pipeline through laminar flow smallpox high efficiency filter section, described operating room top outlet inlet is connected to outdoor by pipeline through fire-preventino regulating valve and air blast, described operating room bottom air outlet is connected respectively to primary retirn air section and secondary return air section by pipeline through fire-preventino regulating valve and volume damper.
2. fixed proportion secondary return air clean operation department air treatment system according to claim 1, is characterized in that: be provided with the microperforated panel muffler between described laminar flow smallpox high efficiency filter section and wind outlet section.
3. fixed proportion secondary return air clean operation department air treatment system according to claim 1, it is characterized in that: be equipped with Temperature Humidity Sensor on the backwind tube of described secondary return air section, described Temperature Humidity Sensor is connected to controller by wired or wireless mode, described controller is provided with information and regulates panel, and described controller drives volume damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721160 CN203010779U (en) | 2012-12-25 | 2012-12-25 | Air treatment system for cleaning operating departments by fixed-proportion secondary return air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721160 CN203010779U (en) | 2012-12-25 | 2012-12-25 | Air treatment system for cleaning operating departments by fixed-proportion secondary return air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203010779U true CN203010779U (en) | 2013-06-19 |
Family
ID=48602368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220721160 Expired - Lifetime CN203010779U (en) | 2012-12-25 | 2012-12-25 | Air treatment system for cleaning operating departments by fixed-proportion secondary return air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203010779U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613598A (en) * | 2015-01-22 | 2015-05-13 | 北京博锐尚格节能技术股份有限公司 | Energy-saving monitoring method and device used for air-conditioner |
| CN106765706A (en) * | 2016-12-29 | 2017-05-31 | 武汉嘉荣医疗净化工程有限公司 | A kind of energy-saving fresh air purifying air-conditioning system of asking for |
| CN107305042A (en) * | 2017-05-08 | 2017-10-31 | 浙江欧伦电气有限公司 | High temperature constant temperature constant humidity unit |
| CN108413524A (en) * | 2018-04-04 | 2018-08-17 | 航天凯天环保科技股份有限公司 | A kind of combined type secondary returning air control humid air purification unit |
| CN108613333A (en) * | 2016-12-26 | 2018-10-02 | 成都三益福达机械设备制造有限公司 | A kind of low temperature variable air rate energy-saving and purifying air-conditioning system |
| CN110425708A (en) * | 2019-08-01 | 2019-11-08 | 苍龙集团有限公司 | Operating room construction high efficiency energy saving self control system |
| CN111161618A (en) * | 2020-01-19 | 2020-05-15 | 天津商业大学 | A small air handling unit test bench based on semiconductor refrigeration |
| CN111503792A (en) * | 2020-05-26 | 2020-08-07 | 无锡市天兴净化空调设备有限公司 | A new type of special low-humidity air-conditioning unit for cigarette manufacturing workshop |
| CN112747414A (en) * | 2020-12-31 | 2021-05-04 | 深圳华侨城文化旅游建设有限公司 | Air conditioning system, independent air return method and system of air conditioner, terminal and storage medium |
| CN113405198A (en) * | 2021-07-15 | 2021-09-17 | 汪显良 | Proportion-adjustable secondary return air conditioning system with reheater |
| CN114963366A (en) * | 2022-06-15 | 2022-08-30 | 中国电子***工程第四建设有限公司 | Secondary return air conditioning system and control method |
-
2012
- 2012-12-25 CN CN 201220721160 patent/CN203010779U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613598A (en) * | 2015-01-22 | 2015-05-13 | 北京博锐尚格节能技术股份有限公司 | Energy-saving monitoring method and device used for air-conditioner |
| CN108613333B (en) * | 2016-12-26 | 2023-07-04 | 成都三益福达机械设备制造有限公司 | Low-temperature variable air volume energy-saving purifying air conditioning system |
| CN108613333A (en) * | 2016-12-26 | 2018-10-02 | 成都三益福达机械设备制造有限公司 | A kind of low temperature variable air rate energy-saving and purifying air-conditioning system |
| CN106765706A (en) * | 2016-12-29 | 2017-05-31 | 武汉嘉荣医疗净化工程有限公司 | A kind of energy-saving fresh air purifying air-conditioning system of asking for |
| CN107305042A (en) * | 2017-05-08 | 2017-10-31 | 浙江欧伦电气有限公司 | High temperature constant temperature constant humidity unit |
| CN108413524A (en) * | 2018-04-04 | 2018-08-17 | 航天凯天环保科技股份有限公司 | A kind of combined type secondary returning air control humid air purification unit |
| CN110425708A (en) * | 2019-08-01 | 2019-11-08 | 苍龙集团有限公司 | Operating room construction high efficiency energy saving self control system |
| CN110425708B (en) * | 2019-08-01 | 2024-04-05 | 苍龙集团有限公司 | High-efficiency energy-saving automatic control system for air conditioner in operating room |
| CN111161618A (en) * | 2020-01-19 | 2020-05-15 | 天津商业大学 | A small air handling unit test bench based on semiconductor refrigeration |
| CN111503792A (en) * | 2020-05-26 | 2020-08-07 | 无锡市天兴净化空调设备有限公司 | A new type of special low-humidity air-conditioning unit for cigarette manufacturing workshop |
| CN112747414B (en) * | 2020-12-31 | 2022-05-03 | 深圳华侨城文化旅游建设有限公司 | Air conditioning system, independent air return method and system of air conditioner, terminal and storage medium |
| CN112747414A (en) * | 2020-12-31 | 2021-05-04 | 深圳华侨城文化旅游建设有限公司 | Air conditioning system, independent air return method and system of air conditioner, terminal and storage medium |
| CN113405198A (en) * | 2021-07-15 | 2021-09-17 | 汪显良 | Proportion-adjustable secondary return air conditioning system with reheater |
| CN114963366A (en) * | 2022-06-15 | 2022-08-30 | 中国电子***工程第四建设有限公司 | Secondary return air conditioning system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203010779U (en) | Air treatment system for cleaning operating departments by fixed-proportion secondary return air | |
| CN201652635U (en) | Novel constant temperature and humidity purification air-conditioning unit | |
| CN100552573C (en) | The controller based on optimal allocation of fresh air for VAV air conditioning | |
| CN201652636U (en) | A double cold source heat recovery type constant temperature and humidity air conditioning unit | |
| CN204648544U (en) | Indoor environmental condition control unit and system and building system and passive type building | |
| CN105047058B (en) | A kind of full size central air-conditioning and central heating synthesis experiment platform and its control method | |
| CN105605753B (en) | Fresh air air-supply temperature control system based on multi-connected machine and new blower fan composite air conditioner system | |
| CN202059850U (en) | Independent ventilation cage tool environment control device | |
| CN204730410U (en) | A kind of full working scope adaptive controller of combined air conditioning box | |
| CN204946458U (en) | A kind of full size central air-conditioning and central heating synthesis experiment platform | |
| CN102213477A (en) | Constant temperature and humidity air-conditioning intelligent network energy-saving system | |
| CN203310050U (en) | Variable air volume dew-point controlled air conditioning system | |
| CN109945333A (en) | A residential building air-conditioning system with decentralized adjustment at the end of fresh air centralized treatment | |
| CN207123040U (en) | A kind of Animal House two fans formula air conditioner intelligent control system | |
| CN202119046U (en) | Constant temperature and humidity air-conditioning intelligent network energy-saving system | |
| CN201740130U (en) | Temperature and humidity independent control type air-conditioning unit | |
| CN202675488U (en) | Intelligence frequency conversion double air conditioning system | |
| CN104776527A (en) | Indoor environment control unit and system, building system and passive building | |
| CN204757138U (en) | Indoor unit | |
| CN104235972A (en) | Intelligent energy-saving control system and method for fresh air volume of operating rooms | |
| CN204176810U (en) | A kind of operating room resh air requirement intelligent power saving regulator control system | |
| CN213983826U (en) | Clean windless air conditioning system of soil source heat pump special for villa | |
| CN105135552A (en) | Air conditioning system | |
| CN207365245U (en) | A kind of indoor fresh air ventilating system | |
| CN2926891Y (en) | Ventilating and dehumidifying air-conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SITENG ENGINEERING CO., LTD., XI'AN Free format text: FORMER OWNER: XI'AN LVYUAN ENERGY SAVING SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20140605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140605 Address after: 5 building, 9 Times Building, No. three, 710075 hi tech Road, Xi'an hi tech Zone, Shaanxi, China Patentee after: Xi'an Siteng Engineering Co.,Ltd. Address before: 710075, building 3, building 9, new Times Building, No. three, 312 hi tech Road, hi tech Zone, Shaanxi, Xi'an Patentee before: Xi'an Lvyuan Energy-Saving Science & Technology Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: XI'AN SITENG ENVIRONMENTAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SITENG ENGINEERING CO., LTD., XI'AN Effective date: 20150827 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150827 Address after: 5 building, 9 Times Building, No. three, 710075 hi tech Road, Xi'an hi tech Zone, Shaanxi, China Patentee after: XI'AN SITENG ENVIRONMENT TECHNOLOGY CO.,LTD. Address before: 5 building, 9 Times Building, No. three, 710075 hi tech Road, Xi'an hi tech Zone, Shaanxi, China Patentee before: Xi'an Siteng Engineering Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |