CN118089146B - Dynamic balance operating room air conditioning system capable of adjusting cleanliness - Google Patents
Dynamic balance operating room air conditioning system capable of adjusting cleanliness Download PDFInfo
- Publication number
- CN118089146B CN118089146B CN202311565898.2A CN202311565898A CN118089146B CN 118089146 B CN118089146 B CN 118089146B CN 202311565898 A CN202311565898 A CN 202311565898A CN 118089146 B CN118089146 B CN 118089146B
- Authority
- CN
- China
- Prior art keywords
- air
- operating room
- cleanliness
- fan
- outer rotor
- 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
- 230000003749 cleanliness Effects 0.000 title claims abstract description 71
- 238000004378 air conditioning Methods 0.000 title claims abstract description 18
- 230000006641 stabilisation Effects 0.000 claims abstract description 21
- 238000011105 stabilization Methods 0.000 claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 claims description 33
- 230000033228 biological regulation Effects 0.000 claims description 28
- 238000002156 mixing Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000012544 monitoring process Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 15
- 238000001704 evaporation Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000011897 real-time detection Methods 0.000 claims description 7
- 230000010365 information processing Effects 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 241000238631 Hexapoda Species 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Ventilation (AREA)
Abstract
The invention relates to the field of purification systems, and particularly discloses a dynamic balance operating room air conditioning system with adjustable cleanliness, which comprises a purified air circulation assembly, a cleanliness dynamic stabilization module and a PLC control module, wherein variable air quantity purifying and air supplying equipment of the purified air circulation assembly is arranged in a ceiling of an operating room, and the cleanliness dynamic stabilization module comprises a conventional dynamic stabilization module and an air quantity compensation module and can adjust the air quantity of a fan in real time according to different conditions. According to the invention, the air speed and the air quantity of the air supply ceiling are continuously switched through the PLC control module, so that the requirements that different incision types of operations can be performed in an operating room and different types of operation cleanliness requirements are different are met, and the operation room air conditioning system capable of freely changing the cleanliness level can freely change the cleanliness level of the operating room: i, II, III, IV level, reduced the required area of operating unit construction and construction cost, can realize the dynamic stabilization of operating room air cleanliness factor in addition.
Description
Technical Field
The invention relates to the field of purification systems, in particular to a dynamic balance operating room air conditioning system with adjustable cleanliness.
Background
The traditional single operating room is relatively fixed in operation type and cleanliness class that can carry out, in order to satisfy the cleanliness requirement that different operation types correspond, traditional way is the operating room of three to four kinds of clean grades of independent construction: the I-level clean operating room, the II-level clean operating room, the III-level clean operating room and the IV-level clean operating room are large in number, large in construction area of the whole operating part, high in construction cost, single in function of the single operating room, low in use efficiency, and particularly in small and medium-sized hospitals, the I-level clean operating room is idle frequently, and resources are seriously wasted.
The adjustability of operating room cleanliness mainly relies on two key technologies: air filtration and air flow control techniques typically use High Efficiency Particulate Air (HEPA) filters to filter particulates and bacteria from the air. The filtering effect can be adjusted by increasing the number of filters or changing the specifications of the filters, thereby adjusting the cleanliness of the air. Operating rooms may also typically employ laminar flow techniques to control air flow to reduce particulates and bacteria in the air, and to regulate air cleanliness by changing air flow rates or changing air flow directions.
In addition, there are some operating room air conditioning systems for static adjustment of cleanliness, and in practice, the operating room is used with timeliness and rigor, especially in operating conditions of the operating room, when the cleanliness does not conform to the current type of incision, static adjustment of cleanliness increases the risk of surgical infection for the patient.
Disclosure of Invention
The invention provides a dynamic balance operating room air-conditioning system with adjustable cleanliness, which solves the technical problems that an operating room with level I cleanliness cannot be switched into level II, level III and level IV cleanliness in the related art, and meanwhile, the cleanliness is maintained to be dynamic and stable, and the corresponding level operation is performed.
According to one aspect of the invention, there is provided a dynamically balanced operation room air conditioning system with adjustable cleanliness, comprising a purified air circulation assembly, a cleanliness dynamic stabilization module and a PLC control module, wherein the purified air circulation assembly comprises a variable air volume purified air supply device, a lower return air inlet and a purified circulating air processing unit, the variable air volume purified air supply device is arranged in a ceiling of an operation room, the lower return air inlet is arranged in a wall of the operation room, the purified circulating air processing unit is arranged outside the operation room, the purified circulating air processing unit is arranged between the variable air volume purified air supply device and the lower return air inlet through a pipeline, the variable air volume purified air supply device comprises a first air supply cavity, second air supply cavities are symmetrically arranged on two adjacent sides of the first air supply cavity, the second air supply cavity are respectively provided with a closed type quick variable air volume butterfly valve, the closable quick variable air volume butterfly valve is electrically connected to the PLC control module, and the air speed of an air outlet and the operation room are controlled by controlling the closable quick variable air volume and the air volume of air supply and the operation room;
The purifying and circulating air treatment unit comprises a fresh air component, a wind mixing component and an air supply component, wherein the wind mixing component is arranged between the fresh air component and the air supply component, and the fresh air component and the wind mixing component are respectively provided with a direct current brushless outer rotor speed regulating fan, a first direct current brushless outer rotor speed regulating fan and a second direct current brushless outer rotor speed regulating fan;
The cleanliness dynamic stabilization module comprises a conventional dynamic stabilization module and an air volume compensation module, wherein the conventional dynamic stabilization module comprises a pressure measuring device, the pressure measuring device is arranged in an air guide ring of the direct current brushless outer rotor speed regulation fan, the pressure measuring device is used for measuring dynamic pressure values of the air guide ring, a frequency converter is further arranged in the direct current brushless outer rotor speed regulation fan, the direct current brushless outer rotor speed regulation fan is electrically connected with the frequency converter, the frequency converter is used for intelligently regulating air volume of the fan, and the positive correlation relation between the dynamic pressure values of the air guide ring of the direct current brushless outer rotor speed regulation fan and the air volume is utilized for dynamically regulating the air volume of an operating room with a variable cleanliness level;
The air quantity compensation module comprises an air quality real-time detection device which is arranged in an operating room and is used for detecting air quality in a normal state dynamic stable state, when the air quality in the operating room does not reach the standard, the air quantity compensation is increased through the purifying and circulating air processing unit, the threshold value of the air quantity compensation is not higher than the dynamic pressure value of the highest air guide ring operated by the direct-current brushless outer rotor speed regulation fan, and when the air quantity compensation is increased, the air quality in the operating room does not reach the standard yet, an alarm signal for purifying the loss of functions of the filtering system in the air circulation assembly is sent out through the PLC control module;
The PLC control module is used for regulating and controlling the switching flow of the purified air circulation assembly and controlling the cleanliness dynamic stabilization module.
Further, the pressure measuring device is a miniature dynamic pressure monitoring device, the miniature dynamic pressure monitoring device feeds the dynamic pressure value of the air guide ring back to the PLC control module in real time, and the PLC control module adjusts the air quantity of the DC brushless outer rotor speed regulation fan and the closable type quick variable air quantity butterfly valve through the positive correlation relation between the dynamic pressure value of the air guide ring and the air quantity.
Further, the air quality real-time detection device comprises a cleanliness monitoring module and an information processing module, wherein the cleanliness monitoring module is used for monitoring the air quality of an operating room under different cleanliness in real time, the information processing module comprises an air quantity compensation control mechanism, and the air quantity compensation control mechanism is used for receiving monitoring information of the cleanliness monitoring module.
Further, when the air quantity compensation control mechanism sends an air quantity compensation instruction to the PLC control module, the PLC control module receives the air quantity compensation instruction and performs step-by-step control on the first DC brushless outer rotor speed regulating fan and the second DC brushless outer rotor speed regulating fan according to a preset air quantity compensation threshold value to increase the air quantity, wherein the air quantity compensation threshold value is not higher than the highest wind guide ring dynamic pressure value of fan operation.
Further, the fresh air treatment component comprises a fresh air section pipeline, a primary filter, an electric preheater, a first direct-current brushless outer rotor speed regulation fan, a first cold water coil pipe and a freon direct evaporation coil pipe, the fresh air section pipeline is sequentially connected with the primary filter, the electric preheater, the first direct-current brushless outer rotor speed regulation fan, the first cold water coil pipe and the freon direct evaporation coil pipe in series, the end part interface of the fresh air treatment component is connected with a fresh air pipe, and a detachable and washable fresh air rainproof shutter, an electric airtight air valve and a muffler are sequentially installed in the fresh air pipe.
Further, the air mixing assembly comprises an air mixing section pipeline, a second direct current brushless outer rotor speed regulating fan, a medium-efficiency filter, a second cold water coil pipe, a heating source and a humidifier, wherein the air mixing section pipeline is sequentially connected with the second direct current brushless outer rotor speed regulating fan, the medium-efficiency filter, the second cold water coil pipe, the heating source and the humidifier in series.
Further, the return air interface of the air mixing assembly is connected with a return air pipe, and a manual air quantity adjusting valve, a muffler and a DEG C fire damper are sequentially connected through an air mixing section pipeline after the return air interface, and are communicated into a lower return air opening at the tail end of the return air pipe.
Further, a first detachable and washable insect-proof net is arranged in the detachable and washable fresh air rainproof shutter.
Further, a top air outlet with a medium-efficiency filter is arranged on the ceiling of the operating room, the top air outlet is connected to the outer wall of the equipment layer through an air exhaust pipeline, and a fireproof valve, a manual air quantity regulating valve, a low-noise air exhaust fan, an air pipe check valve and a detachable and washable air exhaust rainproof shutter are sequentially arranged on the air exhaust pipeline from the operating room to the outside of the operating room.
Further, a second detachable and washable insect-proof net is arranged in the detachable and washable air exhaust rainproof shutter.
The invention has the beneficial effects that: 1) According to the technical scheme, the operation room air-conditioning system can realize that one operation room can perform operations of different incision types, the operation cleanliness requirements of different types are different, and the operation room cleanliness level can be freely changed: the I, II, III and IV levels are compared with the traditional operating rooms with the fixed operation type and the unadjustable cleanliness level, different operation types and different cleanliness levels can be considered simultaneously, and each operating room is separately and independently constructed, so that the area and the construction cost required by the construction of an operation part are reduced.
2) By arranging the cleanliness dynamic stabilization module, the air quantity requirement of the cleanliness of the operating room can be accurately maintained in real time, and the air quantity compensation module can furthest maintain the cleanliness requirement of the operating room under a specific environment, especially under the operating state of the operating room, so that the infection probability of a patient in operation is reduced.
Drawings
FIG. 1 is a schematic diagram of the system components of an operating room air conditioning system with a freely variable cleanliness level according to the present invention;
fig. 2 is an operating room cleanliness grading table of the present invention.
In the figure: 1. an operating room; 2. a ceiling; 3. a first air supply chamber; 4. a second air supply chamber; 5. an upper exhaust outlet; 6. a lower return air inlet; 7. fresh air pretreatment section; 8. a primary filter; 9. an electric preheater; 10. the first direct-current brushless outer rotor speed regulation fan; 11. a first chilled water coil; 12. freon direct evaporation coil; 13. a wind mixing section; 14. the second direct-current brushless outer rotor speed regulation fan; 15. a medium-efficiency filter; 16. a second chilled water coil; 17. a heating source; 18. a humidifier; 19. an air supply section; 20. a unit box body; 21. detachable and washable fresh air rainproof shutter; 22. an electric sealing valve; 23. a new air pipe; 24. a first muffler; 31. a second muffler; 32. a first 70 ℃ fire damper; 33. an air supply pipe; 34. the first closable type quick variable air volume butterfly valve; 35. a third muffler; 36. the second closeable type quick variable air volume butterfly valve; 37. a fourth muffler; 41. an air return pipe; 42. a second 70 ℃ fire valve; 43. a fifth muffler; 44. a first manual air volume adjusting valve; 51. an exhaust pipe; 52. a third 70 ℃ fire valve; 53. a second manual air volume adjusting valve; 54. a low noise exhaust fan; 55. an air duct check valve; 56. detachable and washable air exhaust rainproof shutter.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It should be appreciated that these embodiments are discussed so that those skilled in the art will better understand and realize the subject matter described herein. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure as set forth in the specification. Various examples may omit, replace, or add various procedures or components as desired. In addition, features described with respect to some examples may be combined in other examples as well.
Referring to fig. 1-2, in this embodiment, a dynamically balanced operation room 1 air conditioning system with adjustable cleanliness is provided, which comprises a purified air circulation assembly, a cleanliness dynamic stabilization module and a PLC control module, wherein the purified air circulation assembly comprises a variable air volume purified air supply device, a lower return air inlet 6 and a purified circulating air treatment unit, the variable air volume purified air supply device is arranged in a ceiling 2 of the operation room 1, the lower return air inlet 6 is arranged in a wall of the operation room 1, an upper exhaust air outlet 5 can be arranged on the ceiling 2, the purified circulating air treatment unit is arranged outside the operation room 1, the purified circulating air treatment unit is arranged between the variable air volume purified air supply device and the lower return air inlet 6 through a pipeline, the variable air volume purified air supply device comprises a first air supply cavity 3, second air supply cavities 4 are symmetrically arranged on two adjacent sides of the first air supply cavity 3, the second air supply cavity 4 are internally provided with a variable air volume, the variable air volume is arranged on a pipeline at an air inlet end of the first air supply cavity 3 and the second air supply cavity 4, the variable air volume is electrically connected to a butterfly valve and the variable air volume control module through the butterfly valve and the variable air volume control module, and the variable air volume control unit is arranged in the operation room 1;
the purifying and circulating air processing unit comprises a fresh air component, a wind mixing component and an air supply component, wherein the wind mixing component is arranged between the fresh air component and the air supply component, and the fresh air component and the wind mixing component are respectively provided with a direct current brushless outer rotor speed regulating fan, namely a first direct current brushless outer rotor speed regulating fan 10 and a second direct current brushless outer rotor speed regulating fan 14;
The cleanliness dynamic stabilization module comprises a conventional dynamic stabilization module and an air volume compensation module, wherein the conventional dynamic stabilization module comprises a pressure measuring device, the pressure measuring device is arranged in an air guide ring of the direct current brushless outer rotor speed regulation fan, the pressure measuring device is used for measuring dynamic pressure values of the air guide ring, a frequency converter is further arranged in the direct current brushless outer rotor speed regulation fan, the direct current brushless outer rotor speed regulation fan is electrically connected with the frequency converter, the frequency converter is used for intelligently regulating air volume of the fan, and the air volume of the operating room 1 with the cleanliness level can be dynamically regulated by utilizing the positive correlation relation between the dynamic pressure values of the air guide ring of the direct current brushless outer rotor speed regulation fan and the air volume;
The air quantity compensation module comprises an air quality real-time detection device which is arranged in an operating room 1, wherein the air quality detection device is used for detecting air quality in a normal state and a dynamic stable state, when the air quality in the operating room 1 does not reach the standard, the air quantity compensation is increased by a purifying and circulating air processing unit, the threshold value of the air quantity compensation is not higher than the dynamic pressure value of the highest wind guide ring operated by a direct current brushless outer rotor speed regulation fan, and when the air quantity compensation is increased, the air quality in the operating room 1 does not reach the standard yet, an alarm signal for the loss of functions of a filtering system in a purifying air circulation assembly is sent out by a PLC (programmable logic controller) control module;
The air quality real-time detection device comprises a cleanliness monitoring module and an information processing module, wherein the cleanliness monitoring module is used for monitoring the air quality of the operating room 1 under different cleanliness in real time, the information processing module comprises an air quantity compensation control mechanism, and the air quantity compensation control mechanism is used for receiving monitoring information of the cleanliness monitoring module.
When the air quantity compensation control mechanism sends an air quantity compensation instruction to the PLC control module, the PLC control module receives the air quantity compensation instruction and performs step-by-step control on the first DC brushless outer rotor speed regulating fan 10 and the second DC brushless outer rotor speed regulating fan 14 according to a preset air quantity compensation threshold value, so that the air quantity is increased, and the air quantity compensation threshold value is not higher than the highest dynamic pressure value of an air guide ring in running of the fan.
The PLC control module is used for regulating and controlling the switching flow of the purified air circulation assembly and controlling the cleanliness dynamic stabilization module.
It should be noted that, the pressure measuring device is a miniature dynamic pressure monitoring device, the miniature dynamic pressure monitoring device feeds back dynamic pressure values of the wind guide ring to the PLC control module in real time, and the PLC control module adjusts the air quantity of the DC brushless outer rotor speed regulation fan and the closable type quick variable air quantity butterfly valve through the positive correlation relation between dynamic pressure values of the wind guide ring and the air quantity.
Specifically, the conventional dynamic stabilization module is provided with a pressure measuring device at the wind guide ring of the variable-frequency EC fan, is used for measuring the dynamic pressure value of the wind guide ring, is also provided with a frequency converter in the fan, and is used for intelligently adjusting the air quantity of the fan, and dynamically adjusting the air quantity of the operating room 1 with the variable cleanliness level in real time by utilizing the positive correlation between the dynamic pressure value of the wind guide ring of the variable-frequency EC fan and the air quantity;
The air quantity compensation module is provided with an air quality real-time detection device in the operating room 1, the air quality detection device is used for detecting air quality in a normal state dynamic stable state, when the air speed and the air quantity meet the cleanliness standard, the control quality in the operating room 1 still does not reach the standard, the priority control system continues to increase the air quantity compensation until the air quality detection device shows that the air quality detection device meets the cleanliness standard, the air supply quantity at the moment is maintained, and the highest compensation threshold value is not higher than the highest dynamic pressure value of the air guide ring recommended to operate by the fan; when the air quantity is increased and compensated, the air quality still does not reach the standard, and an alarm that the filtering system may lose function is sent out.
It is also to supplement that fresh air treatment component includes fresh air section pipeline, primary filter 8, electric preheater 9, first cold water coil 11 and freon direct evaporation coil 12, and fresh air section pipeline establishes ties primary filter 8, electric preheater 9, first brushless external rotor speed governing fan 10 of direct current, first cold water coil 11 and freon direct evaporation coil 12 in proper order, and fresh air treatment component's tip interface connection has fresh air pipe 23, installs in proper order in the fresh air pipe 23 and unpick and wash formula fresh air rainproof shutter 21, electronic airtight blast valve and silencer.
The air mixing assembly comprises an air mixing section 13 pipeline, an intermediate filter 15, a second cold water coil 16, a heating source 17 and a humidifier 18, wherein the air mixing section 13 pipeline is sequentially connected with a second direct current brushless outer rotor speed regulation fan 14, the intermediate filter 15, the second cold water coil 16, the heating source 17 and the humidifier 18 in series; the return air interface of the air mixing assembly is connected with a return air pipe 41, a first manual air quantity adjusting valve 44, a second muffler 31 and a first 70 ℃ fireproof valve 32 are sequentially connected through a pipeline of the air mixing section 13 after the return air interface, the tail end of the return air pipe 41 is communicated into the lower return air inlet 6, and a first detachable insect-proof net is installed in the detachable fresh air rainproof shutter 21.
Heating sources 17 include, but are not limited to, hot water coils or PTC electric heaters;
the ceiling 2 of the operating room 1 is provided with a top air outlet with a medium-efficiency filter 15, the top air outlet is connected to the outer wall of the equipment layer through an air outlet pipe 51, a fireproof valve, a manual air quantity adjusting valve, a low-noise air outlet fan 54, an air pipe check valve 55 and a detachable and washable air exhaust rainproof shutter 56 are sequentially arranged on the air outlet pipe 51 from the inside of the operating room 1 to the outside of the operating room 1, and a second detachable and washable insect screen is arranged in the detachable and washable air exhaust rainproof shutter 56.
The variable air volume purifying air supply device comprises a first air supply cavity 3, second air supply cavities 4 are symmetrically arranged on two adjacent sides of the first air supply cavity 3, efficient filters which are in a flat-paved shape are respectively arranged in the first air supply cavity 3 and the second air supply cavity 4, and a closable type rapid air volume changing butterfly valve and a muffler are arranged on a pipeline at the air inlet end of the first air supply cavity 3 and the pipeline at the air inlet end of the second air supply cavity 4 and are electrically connected to a PLC control module.
Specifically, the purifying and circulating air treatment unit comprises a unit box 20, wherein a fresh air pretreatment section 7, a primary filter 8, an electric preheater 9, a first direct-current brushless outer rotor speed regulation fan 10, a first cold water coil 11, a freon direct evaporation coil 12, a wind mixing section 13, a second direct-current brushless outer rotor speed regulation fan 14, a middle-effect filter 15, a second cold water coil 16, a PTC electric heater, a humidifier 18 and an air supply section 19 are sequentially arranged in the unit box 20.
The fresh air section interface of the purifying and circulating air processing unit is connected with a fresh air pipe 23, and a detachable and washable fresh air rainproof shutter 21, a first electric closed air valve and a first muffler 24 are sequentially arranged.
The air return port of the air mixing section 13 of the purifying and circulating air processing unit is connected with an air return pipe 41, a second manual air quantity regulating valve 53, a fifth muffler 43 and a third fireproof valve 52 at 70 ℃ are sequentially arranged behind the air return port, and the tail end of the air return pipe 41 is communicated with each air return port.
The air supply section 19 of the purifying and circulating air processing unit is connected with an air supply pipe 33, a muffler and a second-DEG C fireproof valve are sequentially arranged behind an air supply interface, a closable type rapid variable air volume butterfly valve, a third muffler 35 and a variable air volume purifying and air supply ceiling connected with the tail end of the air supply pipe 33 are arranged, and a freon direct evaporating coil 12 of the purifying and circulating air processing unit is matched with a variable frequency compressor.
The first direct current brushless outer rotor speed regulating fan 10 of the purifying and circulating air processing unit can monitor fresh air quantity and feed back the fresh air quantity to the PLC control system, the electric closed valve 22 is arranged at the front end of the detachable and washable fresh air rainproof shutter 21, and the electric closed valve is arranged at the front end of the detachable and washable fresh air rainproof shutter 21, so that when the fresh air quantity is insufficient due to the blocking of the insect-proof net or the blocking of the primary filter 8 in the detachable and washable fresh air rainproof shutter 21, the PLC control system adjusts the rotating speed of the first direct current brushless outer rotor speed regulating fan 10 in real time according to a set value, and increases the fresh air quantity so as to keep the fresh air quantity supplied to the operating room 1 constant, thereby stabilizing the positive pressure of the operating room 1.
In this embodiment, temperature and humidity sensors are respectively disposed at the rear end of the freon direct evaporation coil 12 and the air flow stabilizing section of the air return pipe 41 of the purifying and circulating air processing unit, and the fresh air outlet and return air temperature and humidity signals are detected and sent to the PLC control system.
Meanwhile, a control algorithm is set according to the positive correlation between the dynamic pressure value of the air guide ring and the air quantity, the air quantity of the fan is adjusted in real time through a frequency converter in the fan controlled by a controller, and the degree of opening and closing of a butterfly valve is closed quickly in cooperation with air supply, so that the dynamic balance of cleanliness in an operating room 1 is achieved;
in addition, when the operating room 1 is in a working environment (such as an operation running state, a maintenance system is not easy to stop), on the basis that the air quantity and the air speed meet the corresponding cleanliness standards, the air cleanliness still does not meet the requirements, and then the air quantity is increased by the air quantity compensation module (the conventional dynamic stabilization module is closed at the moment) through the primary regulating fan according to a preset threshold value (the highest compensation threshold value is not higher than the highest wind guide ring dynamic pressure value of the recommended operation of the fan), so that the cleanliness of the operating room 1 in a specific state is maintained, and the normal operation of the operating room 1 is not influenced. When the threshold value of the compensated air quantity reaches the highest level of the preset threshold value, the air cleanliness still does not reach the standard, an early warning is sent out, and the filter system is prompted to possibly partially lose or completely lose the filtering function. The system has simple control logic, belongs to autonomous regulation of the system, does not need manual intervention, and simultaneously takes account of air quantity compensation setting in a special state, thereby ensuring the use of the air conditioning system to the maximum extent.
In summer, the PLC control system preferentially starts the first cold water coil 11 to cool and dehumidify, and when the absolute moisture content of the fresh air outlet is larger than a set upper limit value, the PLC control system controls the freon direct evaporation coil 12 to work, and the relay first cold water coil 11 deeply dehumidifies the fresh air; in winter, when the relative humidity of the return air is smaller than the set lower limit value, the PLC control system controls the humidifier 18 to work so as to humidify the fresh air.
The variable air volume purifying air supply ceiling comprises a first air supply cavity 3, second air supply cavities 4 are symmetrically arranged on two adjacent sides of the first air supply cavity 3, and tiling high-efficiency filters are respectively arranged in the first air supply cavity 3 and the second air supply cavity 4.
The air inlet end air pipe of the first air supply cavity 3 is provided with a closable type rapid variable air volume butterfly valve and a third muffler 35, the air inlet end air pipe of the second air supply cavity 4 is provided with a first closable type rapid variable air volume butterfly valve 34 and a third muffler 35, and the closable type rapid variable air volume butterfly valve is in communication connection with the PLC control system. The first closeable quick variable air volume butterfly valve 34 is arranged, so that the air volume passing through the valve body can be accurately controlled, namely the air volume fed into each air supply cavity of the variable air volume purification air supply ceiling is controlled, the air speed of the air outlet surface of each air supply cavity is further controlled, and the condition that the air speeds of the air outlet surfaces of the air supply cavities are inconsistent and the laminar flow effect is influenced is avoided; in addition, the second closeable quick variable air volume butterfly valve 36 and the fourth muffler 37 are arranged, the actual air volume of the variable air volume purifying air supply ceiling can be monitored in real time and fed back to the PLC control system, and the function of visualizing the actual air volume of the operating room 1 is realized;
According to different cleanliness requirements, operation projects and the like, the purification level of the operating room 1 is further switched, specifically, when the operating room 1 runs under the I-level purification level, the PLC control system controls the closable type rapid air volume changing butterfly valve 34, the closable type rapid air volume changing butterfly valve 36 is opened, and the closable type rapid air volume changing butterfly valves 34 and 36 at the air inlet ends of the first air supply cavity 3 and the second air supply cavity 4 are adjusted to set values, so that the first air supply cavity 3 and the second air supply cavity 4 simultaneously send set air volumes to meet the requirements of the size of the air supply ceiling and the air supply speed of the I-level operating room 1.
When the operating room 1 runs under the grade II purification level, the PLC control system controls the closable type quick air volume changing butterfly valve 34 to be opened, the closable type quick air volume changing butterfly valve 36 to be closed, and the closable type quick air volume changing butterfly valve 34 at the air inlet end of the first air supply cavity 3 is adjusted to a set value, so that the first air supply cavity 3 sends set air volume, and the second air supply cavity 4 stops air supply, so that the requirements of the size and the air supply volume of the air supply ceiling of the grade II operating room 1 are met.
When the operating room 1 runs under the III-level purification level, the PLC control system controls the closable type quick air volume changing butterfly valve 34 to be opened, the closable type quick air volume changing butterfly valve 36 to be closed, and the closable type quick air volume changing butterfly valve 34 at the air inlet end of the first air supply cavity 3 is adjusted to a set value, so that the first air supply cavity 3 sends set air volume, and the second air supply cavity 4 stops air supply, so that the requirements of the III-level operating room 1 on the size and the air supply volume of the air supply ceiling are met.
When the operating room 1 runs under the IV-level purification level, the PLC control system controls the closable type quick air volume changing butterfly valve 36 to be opened, the closable type quick air volume changing butterfly valve 34 to be closed, and the closable type quick air volume changing butterfly valve 36 at the air inlet end of the second air supply cavity 4 is adjusted to a set value, so that the second air supply cavity 4 sends set air volume, the first air supply cavity 3 stops air supply, the air supply volume requirement of the IV-level operating room 1 is met, the air supply surface is ensured to have relatively higher air outlet speed, and better sinking airflow is realized.
The ceiling 2 of the operating room 1 is provided with a top air outlet with a medium-efficiency filter 15, the top air outlet is connected to the outer wall of the equipment layer through an air outlet pipe 51, and the air outlet pipe 51 is sequentially provided with a fireproof valve, a manual air quantity regulating valve and a third fan from inside to outside, an air pipe check valve 55 and a detachable and washable air exhaust rainproof shutter 56.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
The embodiment of the present embodiment has been described above with reference to the accompanying drawings, but the embodiment is not limited to the above-described specific implementation, which is merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the embodiment and the scope of the protection of the claims, which fall within the protection of the embodiment.
Claims (6)
1. The utility model provides a dynamically balanced's adjustable cleanliness's operating room air conditioning system, a serial communication port, including the clean air circulation assembly, cleanliness dynamic stabilization module and PLC control module, clean air circulation assembly includes variable air volume clean air supply equipment, lower return air inlet (6) and clean circulating air processing unit, variable air volume clean air supply equipment locates in operating room (1) ceiling (2), lower return air inlet (6) locate in operating room (1) wall, clean circulating air processing unit locates outside operating room (1), clean circulating air processing unit locates between variable air volume clean air supply equipment, lower return air inlet (6) through the pipeline, variable air volume clean air supply equipment includes first air supply chamber (3), adjacent both sides in first air supply chamber (3) all symmetry are provided with second air supply chamber (4), be provided with the quick variable air volume butterfly valve of closeable type on the pipeline of first air supply chamber (3), second air supply chamber (4) end, the quick variable air volume butterfly valve of closeable type is through electric connection to PLC control module, through control the quick variable air volume butterfly valve of closeable type air outlet and operating room (1);
The purifying and circulating air treatment unit comprises a fresh air component, a wind mixing component and an air supply component, wherein the wind mixing component is arranged between the fresh air component and the air supply component, and the fresh air component and the wind mixing component are respectively provided with a first direct current brushless outer rotor speed regulating fan (10) and a second direct current brushless outer rotor speed regulating fan (14);
The cleanliness dynamic stabilization module comprises a conventional dynamic stabilization module and an air volume compensation module, wherein the conventional dynamic stabilization module comprises a pressure measuring device, the pressure measuring device is arranged in an air guide ring of the direct-current brushless outer rotor speed regulation fan, the pressure measuring device is used for measuring dynamic pressure values of the air guide ring, a frequency converter is further arranged in the direct-current brushless outer rotor speed regulation fan, the direct-current brushless outer rotor speed regulation fan is electrically connected with the frequency converter, the frequency converter is used for intelligently regulating air volume of the fan, and the air volume of an operating room (1) with the cleanliness level can be dynamically regulated by utilizing the positive correlation relation between the dynamic pressure values of the air guide ring of the direct-current brushless outer rotor speed regulation fan and the air volume;
The air quantity compensation module comprises an air quality real-time detection device which is arranged in an operating room (1), wherein the air quality detection device is used for detecting air quality in a normal dynamic stable state, when the air quality in the operating room (1) does not reach the standard, the air quantity compensation is increased through a purified circulating air treatment unit, the threshold value of the air quantity compensation is not higher than the dynamic pressure value of the highest air guide ring of the operation of a direct-current brushless outer rotor speed regulation fan, and after the air quantity compensation is increased, the air quality in the operating room (1) does not reach the standard, and an alarm signal for the loss of functions of a filtering system in a purified air circulation assembly is sent out through a PLC control module;
The PLC control module is used for regulating and controlling the switching flow of the purified air circulating assembly and controlling the cleanliness dynamic and temperature and humidity stabilizing module;
The pressure measuring device is a miniature dynamic pressure monitoring device, the miniature dynamic pressure monitoring device feeds the dynamic pressure value of the air guide ring back to the PLC control module in real time, and the PLC control module adjusts the air quantity of the DC brushless outer rotor speed regulation fan and the closable type quick variable air quantity butterfly valve through the positive correlation relation between the dynamic pressure value of the air guide ring and the air quantity;
The air quality real-time detection device comprises a cleanliness monitoring module and an information processing module, wherein the cleanliness monitoring module is used for monitoring the air quality of an operating room (1) under different cleanliness in real time, and the information processing module comprises an air quantity compensation control mechanism which is used for receiving monitoring information of the cleanliness monitoring module;
the fresh air treatment component comprises a fresh air section pipeline, a primary filter (8), an electric preheater (9), a first direct current brushless outer rotor speed regulation fan (10), a first cold water coil (11) and a freon direct evaporation coil (12), wherein the fresh air section pipeline is sequentially connected with the primary filter (8), the electric preheater (9), the first direct current brushless outer rotor speed regulation fan (10), the first cold water coil (11) and the freon direct evaporation coil (12) in series, a fresh air pipe (23) is connected with an end interface of the fresh air treatment component, and detachable and washable fresh air rainproof shutter (21), an electric airtight air valve and a muffler are sequentially installed in the fresh air pipe (23);
The air mixing assembly comprises an air mixing section (13) pipeline, a second direct-current brushless outer rotor speed regulating fan (14), a middle-effect filter (15), a second cold water coil pipe (16), a heating source (17) and a humidifier (18), wherein the air mixing section (13) pipeline is sequentially connected with the second direct-current brushless outer rotor speed regulating fan (14), the middle-effect filter (15), the second cold water coil pipe (16), the heating source (17) and the humidifier (18) in series.
2. The operating room air conditioning system with the dynamically balanced and adjustable cleanliness according to claim 1, wherein when the air volume compensation control mechanism sends an air volume compensation command to the PLC control module, the PLC control module receives the air volume compensation command and performs step-by-step control on the first direct-current brushless outer rotor speed regulating fan (10) and the second direct-current brushless outer rotor speed regulating fan (14) according to a preset air volume compensation threshold value, so that the air volume is increased, and the air volume compensation threshold value is not higher than the highest air guide ring dynamic pressure value of the fan operation.
3. The operating room air conditioning system with the dynamically balanced and adjustable cleanliness according to claim 2, wherein a return air interface of the air mixing assembly is connected with a return air pipe (41), a manual air quantity adjusting valve, a muffler and a 70 ℃ fireproof valve are sequentially connected through a pipeline of the air mixing section (13) after the return air interface, and the tail end of the return air pipe (41) is communicated into the lower return air inlet (6).
4. A dynamically balanced, cleanliness-adjustable operating room air conditioning system according to claim 3, characterized in that the removable and washable fresh air rainproof shutter (21) is internally fitted with a first removable and washable insect screen.
5. The operating room air conditioning system with adjustable cleanliness of claim 4, characterized in that a top air outlet with a middle-effect filter (15) is arranged on a ceiling (2) of an operating room (1), the top air outlet is connected to an outer wall of an equipment layer through an air outlet pipe (51), and a fire-proof valve, a manual air quantity adjusting valve, a low-noise air outlet fan (54), an air pipe check valve (55) and a detachable and washable air exhaust rainproof shutter (56) are sequentially arranged on the air outlet pipe (51) from the inside of the operating room (1) to the outside of the operating room (1).
6. The operating room air conditioning system with dynamic balance and adjustable cleanliness as claimed in claim 5, wherein a second removable and washable insect screen is installed in the removable and washable ventilating and rainproof shutter (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311565898.2A CN118089146B (en) | 2023-11-22 | 2023-11-22 | Dynamic balance operating room air conditioning system capable of adjusting cleanliness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311565898.2A CN118089146B (en) | 2023-11-22 | 2023-11-22 | Dynamic balance operating room air conditioning system capable of adjusting cleanliness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118089146A CN118089146A (en) | 2024-05-28 |
| CN118089146B true CN118089146B (en) | 2024-07-16 |
Family
ID=91162409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311565898.2A Active CN118089146B (en) | 2023-11-22 | 2023-11-22 | Dynamic balance operating room air conditioning system capable of adjusting cleanliness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118089146B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118328495B (en) * | 2024-06-12 | 2024-10-11 | 上海尧伟建设工程有限公司 | Intelligent fresh air system for operation clean room |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168015A (en) * | 2018-01-16 | 2018-06-15 | 上海市肺科医院 | Logical storehouse blending operating room |
| CN112344469A (en) * | 2020-12-02 | 2021-02-09 | 上海尧伟建设工程有限公司 | Laminar flow air conditioning system for radiation air conditioning operating room |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4750058B2 (en) * | 2007-02-27 | 2011-08-17 | 正 角田 | Operating room |
| CN204176810U (en) * | 2014-09-22 | 2015-02-25 | 深圳市尚荣医疗股份有限公司 | A kind of operating room resh air requirement intelligent power saving regulator control system |
-
2023
- 2023-11-22 CN CN202311565898.2A patent/CN118089146B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168015A (en) * | 2018-01-16 | 2018-06-15 | 上海市肺科医院 | Logical storehouse blending operating room |
| CN112344469A (en) * | 2020-12-02 | 2021-02-09 | 上海尧伟建设工程有限公司 | Laminar flow air conditioning system for radiation air conditioning operating room |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118089146A (en) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204648544U (en) | Indoor environmental condition control unit and system and building system and passive type building | |
| CN118089146B (en) | Dynamic balance operating room air conditioning system capable of adjusting cleanliness | |
| CN208012003U (en) | A kind of air quantity control system changing air quantity by wireless signal | |
| KR101911227B1 (en) | System for air conditioning in vessel and method thereof | |
| KR20090116120A (en) | Energy saving kitchen ventilation control system and method for the same | |
| CN210135648U (en) | Variable air volume fresh air system based on number feedback adjustment | |
| CN219140955U (en) | Clean room air conditioning system | |
| CN214664970U (en) | New fan of multichannel circulation | |
| CN105987488A (en) | Household air quality monitoring system and control method utilizing intelligent internet of things | |
| CN107120756A (en) | Laboratory saves air supplying and exhausting system | |
| CN104776527A (en) | Indoor environment control unit and system, building system and passive building | |
| CN218495081U (en) | Passive room fresh air conditioning equipment with passive ultralow energy consumption | |
| KR102266306B1 (en) | Generation ventilation system using fan separated type range hood | |
| CN105546684A (en) | Indoor environment control unit and building | |
| CN208042334U (en) | The energy-saving unitary air handling unit of independent temperature-humidity control | |
| CN206846961U (en) | Laboratory saves air supplying and exhausting system | |
| CN116538576A (en) | Fresh air control method for scale Wen Hengshi Heng Yangheng and fresh air conditioner unit | |
| CN104374013A (en) | Marine noise reduction and sterilization combined air conditioner | |
| CN110906486A (en) | Air circulation type capillary network air conditioner and control method thereof | |
| CN110594874A (en) | Household air conditioner | |
| CN206831689U (en) | A kind of Domestic hanging air conditioner | |
| CN211261142U (en) | Air circulation type capillary network air conditioner | |
| CN211060255U (en) | Household air conditioner | |
| CN113864886A (en) | Biological safety type clean air conditioning system and control method | |
| CN107101277A (en) | A kind of Domestic hanging air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |