CN101995076A - Electrical temperature difference adjustment method, electrical temperature difference adjustment valve and air conditioning system - Google Patents
Electrical temperature difference adjustment method, electrical temperature difference adjustment valve and air conditioning system Download PDFInfo
- Publication number
- CN101995076A CN101995076A CN2009100912567A CN200910091256A CN101995076A CN 101995076 A CN101995076 A CN 101995076A CN 2009100912567 A CN2009100912567 A CN 2009100912567A CN 200910091256 A CN200910091256 A CN 200910091256A CN 101995076 A CN101995076 A CN 101995076A
- Authority
- CN
- China
- Prior art keywords
- temperature
- temperature difference
- valve
- temperature sensor
- control signal
- 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.)
- Pending
Links
Images
Abstract
The invention relates to an electrical temperature difference adjustment method, an electrical temperature difference adjustment valve and an air conditioning system. The electrical temperature difference adjustment valve comprises a first temperature sensor, a second temperature sensor, an electrical actuator and a valve, wherein the electrical actuator is connected with the first temperature sensor and the second temperature sensor; the valve is connected with the electrical actuator; the first temperature sensor is used for acquiring the temperature of a water inlet; the second temperature sensor is used for acquiring the temperature of a water outlet; and the electrical actuator is used for adjusting the opening of the valve according to the temperature difference between temperatures acquired by the first temperature sensor and the second temperature sensor. By the electrical temperature difference adjustment valve provided by the invention, the problem of hydraulic imbalance of the air conditioning system can be solved well; and as a plurality of balancing valves are not needed, the cost is reduced, and the difficulty of maintaining and managing the system is reduced.
Description
Technical field
The present invention relates to the hydraulic equilibrium control technology, relate in particular to the electronic control method of a kind of temperature difference, temperature difference electric control valve and air-conditioning system, belong to air-conditioning system and make the field.
Background technology
Along with expanding economy, central air conditioner system becomes one of indispensable facility in the modern building.Because the central air conditioner system energy consumption is bigger usually, so its energy-saving design is imperative.Guarantee the technical parameter operation of central air conditioner system, guarantee reliability of system operation and reach the good temperature control effect that the hydraulic equilibrium control of central air conditioner system is key technology according to design.
In order to solve the unbalanced problem of central air conditioner system waterpower, usually multiple dynamic or static balanced valve need be set in system.For the pump variable frequency system, each end-equipment all needs to install electric two-way valve or magnetic valve.In addition, damage because of discharge is too small in order to prevent end-equipment, end-equipment need be installed the lack of water water flow switch.Above-mentioned various valves are installed in central air conditioner system, have not only been increased cost, also increased the difficulty of system maintenance management.
Summary of the invention
The object of the present invention is to provide the electronic control method of a kind of temperature difference, temperature difference electric control valve and air-conditioning system,, and reduce cost in order to the unbalanced problem of solution air-conditioning system waterpower.
The invention provides a kind of temperature difference electric control valve, comprising: first temperature sensor, second temperature sensor, YE and valve; Wherein, described YE is connected with second temperature sensor with described first temperature sensor, and described valve is connected with described YE;
Described first temperature sensor is used to gather the temperature of water inlet; Described second temperature sensor is used to gather the temperature of delivery port; Described YE is used for the temperature difference according to the temperature of described first temperature sensor and the collection of second temperature sensor, the aperture of regulating described valve.
The invention provides a kind of air-conditioning system, comprise above-mentioned temperature difference electric control valve.
The invention provides the electronic control method of a kind of temperature difference, comprising:
Gather the temperature of water inlet and the temperature of delivery port;
According to the temperature difference of the temperature of the temperature of described water inlet and delivery port, the aperture of control valve.
Among the present invention, first temperature sensor and second temperature sensor detect the Inlet and outlet water temperature, and YE is according to the temperature difference of Inlet and outlet water, the aperture of control valve, and then the flow of Inlet and outlet water controlled.Utilize temperature difference electric control valve provided by the invention can well overcome the unbalanced problem of air-conditioning system waterpower, and do not need multiple balanced valve is set, reduced cost, also reduced the difficulty of system maintenance management.
Description of drawings
Fig. 1 is the structural representation of temperature difference electric control valve one embodiment provided by the invention;
Fig. 2 is the structural representation of another embodiment of temperature difference electric control valve provided by the invention;
Fig. 3 is the structural representation of chilled water system among air-conditioning system one embodiment provided by the invention;
Fig. 4 is the enlarged drawing of I portion among Fig. 3;
Fig. 5 is the structural representation of cooling water system among another embodiment of air-conditioning system provided by the invention;
Fig. 6 is the enlarged drawing of J portion among Fig. 5;
Fig. 7 is the flow chart of electronic control method one embodiment of the temperature difference provided by the invention.
The specific embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 1 is the structural representation of temperature difference electric control valve one embodiment provided by the invention.As shown in Figure 1, present embodiment specifically comprises: first temperature sensor 11, second temperature sensor 12, YE 13 and valve 14.Wherein, YE 13 is connected with second temperature sensor 12 with first temperature sensor 11 respectively, and valve 14 is connected with YE 13.
YE 13 is used for the temperature according to the delivery port of the temperature of the water inlet of first temperature sensor, 11 collections and 12 collections of second temperature sensor, calculates both temperature difference, and then according to this temperature difference, the aperture of control valve 14.
In the present embodiment, first temperature sensor and second temperature sensor detect the Inlet and outlet water temperature, and YE is according to the temperature difference of Inlet and outlet water, the aperture of control valve, and then the flow of Inlet and outlet water controlled.The temperature difference electric control valve that utilizes present embodiment to provide can well overcome the unbalanced problem of air-conditioning system waterpower, and does not need multiple balanced valve is set, and has reduced cost, has also reduced the difficulty of system maintenance management.
Fig. 2 is the structural representation of another embodiment of temperature difference electric control valve provided by the invention.As shown in Figure 2, present embodiment is on embodiment basis shown in Figure 1, and YE 13 further comprises: control module 15 and performance element 16.
Control module 15 is used for that the temperature difference and first of the temperature of first temperature sensor 11 and 12 collections of second temperature sensor is set the temperature difference and compares, if the temperature difference is set the temperature difference less than first, then generates first control signal that valve 14 apertures are reduced; If the temperature difference is set the temperature difference greater than first, then generate second control signal that valve 14 apertures are increased.Performance element 16 is used for reducing the aperture of valve 14 according to first control signal, perhaps, according to second control signal, increases the aperture of valve 14.
First sets the temperature difference for the temperature difference that the user is provided with, and is made as Ta; The temperature difference of the temperature that first temperature sensor 11 and second temperature sensor 12 are gathered is the temperature difference of actual Inlet and outlet water in the end-equipment, is made as Tb.When control module 15 compares Tb＜Ta, control module 15 generates and makes first control signal that valve 14 apertures reduce and send performance element 16 to, performance element 16 reduces the aperture of valve 14, the discharge of end-equipment reduces like this, Tb raises, until Ta=Tb, control module 15 no longer sends signal, the constant aperture of valve 14 maintenances this moment.When control module 15 compares Tb＞Ta, control module 15 generates second control signal that makes the increase of valve 14 apertures and sends performance element 16 to, performance element 16 increases the aperture of valve 14, the discharge of end-equipment increases like this, Tb reduces, until Ta=Tb, control module 15 no longer sends signal, the constant aperture of valve 14 maintenances this moment.The temperature difference electric control valve that present embodiment provides can also can have the function of two-port valve so that the discharge of end-equipment increases so that the discharge of end-equipment reduces.
Further, the aperture of valve 14 can equal percentage be regulated, as: when the Tb＜Ta, control module 15 calculates the difference of Tb and Ta, and difference is big more, and the aperture of valve 14 is more little; When Tb＞Ta, control module 15 calculates the difference of Tb and Ta, and difference is big more, and the aperture of valve 14 is big more.Make that like this degree of regulation of present embodiment is higher.
Above-mentioned control module 15 can also be used for that the temperature difference and second of the temperature of first temperature sensor 11 and 12 collections of second temperature sensor is set the temperature difference and compare; if the temperature difference greater than second design temperature, then generates the 3rd control signal that makes the excessive low water level protection function on.Performance element 16 can also be used for according to the 3rd control signal, starts the excessive low water level protection function.
Second sets the temperature difference for the limit temperature difference that the user is provided with, and is made as Tc.When control module 15 compared Tb＞Tc, control module 15 generated and makes the 3rd control signal of excessive low water level protection function on and send performance element 16 to, and performance element 16 starts the excessive low water level protection functions.Particularly, when Tb＞Tc, show by the discharge of end-equipment too smallly, need to start the excessive low water level protection function, such as this moment control module 15 can send signal to performance element 16, performance element 16 is shut down end-equipment.The temperature difference electric control valve that present embodiment provides can have the excessive low water level protection function so that end-equipment is shut down.
YE 13 can be angle stroke YE in the present embodiment, also can be the straight stroke electric actuator.Angle stroke YE can be done the rotary type motion by by-pass valve control; The straight stroke electric actuator can be done the linear pattern motion by by-pass valve control.
Present embodiment can also comprise display floater 17, this display floater 17 is connected with YE 13 with first temperature sensor 11, second temperature sensor 12, be used to show the temperature of water inlet, the temperature and the temperature difference of delivery port, and transmit first of user's input to YE 13 and set the temperature difference and the second setting temperature difference.Particularly, this display floater 17 can be display panels or charactron display floater, and the user can the Real Time Observation Inlet and outlet water temperature and the Inlet and outlet water temperature difference by this display floater 17, also can be provided with first and set the temperature difference and second and set the temperature difference.
The temperature difference electric control valve that present embodiment provides can be applied in the chilled water system or cooling water system of air-conditioning system, particularly, temperature difference electric control valve can be connected with the terminal fan coil of chilled water system, also can be connected with distributing water ring, water source, earth source heat pump cooling water system end hosts.
Present embodiment is generally the feature of 4 ℃ or the 5 ℃ temperature difference at the central air conditioner system end-equipment, a kind of temperature difference electric control valve is provided, wherein, first temperature sensor and second temperature sensor detect the Inlet and outlet water temperature, YE is according to the temperature difference of Inlet and outlet water, the aperture of control valve, and then the flow of Inlet and outlet water controlled, make the Inlet and outlet water temperature difference of end-equipment reach the first setting temperature difference, promptly present embodiment has realized regulating according to the temperature difference that detects the flow of Inlet and outlet water in the air-conditioning system.The temperature difference electric control valve that present embodiment provides has replaced multiple balanced valve in the existing air-conditioning system, well overcomes the unbalanced problem of air-conditioning system waterpower; In addition, present embodiment also has two-port valve and excessive low water level protection function.So the temperature difference electric control valve that adopts present embodiment to provide does not need in the air-conditioning system various balanced valves, two-port valve and lack of water water flow switch are set, and has reduced cost, also reduced the difficulty of the system maintenance management that too much causes because of valve.
The present invention also provides a kind of air-conditioning system, comprises temperature difference electric control valve, and wherein the concrete structure of temperature difference electric control valve can not repeat them here referring to the foregoing description.
Fig. 3 is the structural representation of chilled water system among air-conditioning system one embodiment provided by the invention, and Fig. 4 is the enlarged drawing of I portion among Fig. 3.As shown in Figure 3 and Figure 4, chilled water system comprises cooling tower 31, handpiece Water Chilling Units 32 and n1, n2 and n3 three-decker, comprises several terminal fan coils 33 in each layer structure, and temperature difference electric control valve 34 is connected with the terminal fan coil 33 of chilled water system.
Fig. 5 is the structural representation of cooling water system among another embodiment of air-conditioning system provided by the invention, and Fig. 6 is the enlarged drawing of J portion among Fig. 5.As shown in Figure 5 and Figure 6, cooling water system comprises cooling tower 21, cooling water pump 22, interior machine 23 and end hosts 24, and temperature difference electric control valve 25 is connected with the end hosts 24 of cooling water system.Particularly, cooling water system can be distributing water ring, water source, earth source heat pump cooling water system in the present embodiment.
Air-conditioning system provided by the invention adopts above-mentioned temperature difference electric control valve, has improved the performance of end-equipment, has improved the stability of air-conditioning system.
Fig. 7 is the flow chart of electronic control method one embodiment of the temperature difference provided by the invention.As shown in Figure 7, present embodiment specifically comprises the steps:
Further, above-mentioned steps 102 can comprise:
Step 1021, the temperature difference and first of the temperature of the temperature of water inlet and delivery port is set the temperature difference compare,, then generate first control signal that valve opening is reduced if the temperature difference is set the temperature difference less than first; If the temperature difference is set the temperature difference greater than first, then generate second control signal that valve opening is increased;
Present embodiment can also comprise:
Step 103, the temperature difference and second design temperature of the temperature of the temperature of water inlet and delivery port compared,, then generate the 3rd control signal that makes the excessive low water level protection function on if the temperature difference is set the temperature difference greater than second;
Between step 101 and step 102, present embodiment also can comprise:
In above-mentioned steps 101, first temperature sensor that is arranged on the water inlet of air-conditioning system end-equipment is gathered the temperature of water inlet, is arranged on the temperature that second temperature sensor of the delivery port of air-conditioning system end-equipment is gathered delivery port.
In above-mentioned steps 1021, first sets the temperature difference for the temperature difference that the user is provided with, and is made as Ta; The temperature difference of the temperature of first temperature sensor and the second temperature sensor collection is the temperature difference of actual Inlet and outlet water in the end-equipment, is made as Tb.When control module compared Tb＜Ta, control module generated and makes first control signal that valve opening reduces and send performance element to; When control module compared Tb＞Ta, control module generated and makes second control signal that valve opening increases and send performance element to.
In above-mentioned steps 1022, performance element can reduce the aperture of valve according to first control signal, and the discharge of end-equipment reduces like this, and Tb raises, and until Ta=Tb, control module no longer sends signal, and this moment, valve kept constant aperture.Performance element also can increase the aperture of valve according to second control signal, and the discharge of end-equipment increases like this, and Tb reduces, and until Ta=Tb, control module no longer sends signal, and this moment, valve kept constant aperture.The electronic control method of the temperature difference that present embodiment provides can also can have been realized the function of two-port valve so that the discharge of end-equipment increases so that the discharge of end-equipment reduces.Further, the aperture of valve can be regulated by equal percentage, and degree of regulation is higher like this.
In above-mentioned steps 103, second sets the temperature difference for the limit temperature difference that the user is provided with, and is made as Tc.When control module compared Tb＞Tc, control module generated and makes the 3rd control signal of excessive low water level protection function on and send performance element to.
In above-mentioned steps 104, performance element can start the excessive low water level protection function according to the 3rd control signal.When Tb＞Tc, show by the discharge of end-equipment too smallly, need to start the excessive low water level protection function, such as this moment control module can send signal to performance element, performance element is shut down end-equipment.The electronic control method of the temperature difference that present embodiment provides can have been realized the excessive low water level protection function so that end-equipment is shut down.
Present embodiment is generally the feature of 4 ℃ or the 5 ℃ temperature difference at the central air conditioner system end-equipment, provide a kind of temperature difference electronic control method, be specially and detect the Inlet and outlet water temperature, the temperature difference according to Inlet and outlet water, the aperture of control valve, and then the flow of Inlet and outlet water controlled, make the Inlet and outlet water temperature difference of end-equipment reach first and set the temperature difference, promptly present embodiment has realized regulating according to the temperature difference that detects the flow of Inlet and outlet water in the air-conditioning system.The electronic control method of the temperature difference that present embodiment provides well overcomes the unbalanced problem of air-conditioning system waterpower; In addition, present embodiment has also been realized two-port valve and excessive low water level protection function.So the electronic control method of the temperature difference that adopts present embodiment to provide does not need in the air-conditioning system various balanced valves, two-port valve and lack of water water flow switch are set, and has reduced cost, also reduced the difficulty of the system maintenance management that too much causes because of valve.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, this program is when carrying out, execution comprises the step of said method embodiment, and aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a temperature difference electric control valve is characterized in that comprising: first temperature sensor, second temperature sensor, YE and valve; Wherein, described YE is connected with second temperature sensor with described first temperature sensor, and described valve is connected with described YE;
Described first temperature sensor is used to gather the temperature of water inlet; Described second temperature sensor is used to gather the temperature of delivery port; Described YE is used for the temperature difference according to the temperature of described first temperature sensor and the collection of second temperature sensor, the aperture of regulating described valve.
2. temperature difference electric control valve according to claim 1 is characterized in that, described YE comprises:
Control module is used for that the temperature difference and first of the temperature of described first temperature sensor and the second temperature sensor collection is set the temperature difference and compares, if the described temperature difference is set the temperature difference less than first, then generates first control signal that valve opening is reduced; If the described temperature difference is set the temperature difference greater than first, then generate second control signal that valve opening is increased;
Performance element is used for reducing the aperture of described valve according to described first control signal; Perhaps, according to described second control signal, increase the aperture of described valve.
3. temperature difference electric control valve according to claim 2, it is characterized in that, described control module also is used for the temperature difference of the temperature of described first temperature sensor and the second temperature sensor collection and second design temperature are compared, if the described temperature difference is set the temperature difference greater than described second, then generate the 3rd control signal that makes the excessive low water level protection function on;
Described performance element also is used for according to described the 3rd control signal, starts the excessive low water level protection function.
4. temperature difference electric control valve according to claim 3, it is characterized in that also comprising display floater, described display floater is connected with YE with described first temperature sensor, second temperature sensor, be used to show the temperature and the described temperature difference of the temperature of described water inlet, described delivery port, and transmit described first of user's input to described YE and set the temperature difference and the described second setting temperature difference.
5. air-conditioning system that comprises the described temperature difference electric control valve of the arbitrary claim of claim 1 to 4.
6. air-conditioning system according to claim 5 is characterized in that, described air-conditioning system comprises the terminal fan coil that is arranged in chilled water system, and described temperature difference electric control valve is connected with described terminal fan coil.
7. air-conditioning system according to claim 5 is characterized in that described air-conditioning system comprises the end hosts that is arranged in cooling water system, and described temperature difference electric control valve is connected with described end hosts.
8. air-conditioning system according to claim 7 is characterized in that, described cooling water system is distributing water ring, water source, earth source heat pump cooling water system.
9. electronic control method of the temperature difference is characterized in that comprising:
Gather the temperature of water inlet and the temperature of delivery port;
According to the temperature difference of the temperature of the temperature of described water inlet and delivery port, the aperture of control valve.
10. the electronic control method of the temperature difference according to claim 9 is characterized in that, described according to water inlet temperature and the temperature difference of the temperature of delivery port, the aperture of control valve comprises:
The temperature difference and first of the temperature of the temperature of described water inlet and delivery port is set the temperature difference compare,, then generate first control signal that valve opening is reduced if the described temperature difference is set the temperature difference less than first; If the described temperature difference is set the temperature difference greater than first, then generate second control signal that valve opening is increased;
According to described first control signal, reduce the aperture of described valve; Perhaps, according to described second control signal, increase the aperture of described valve.
11. the electronic control method of the temperature difference according to claim 10 is characterized in that also comprising:
The temperature difference and second design temperature of the temperature of the temperature of described water inlet and delivery port are compared,, then generate the 3rd control signal that makes the excessive low water level protection function on if the described temperature difference is set the temperature difference greater than described second;
According to described the 3rd control signal, start the excessive low water level protection function.
12. the electronic control method of the temperature difference according to claim 11 is characterized in that also comprising: the temperature and the described temperature difference that show the temperature of described water inlet, described delivery port; And, import described first and set the temperature difference and the described second setting temperature difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100912567A CN101995076A (en) | 2009-08-14 | 2009-08-14 | Electrical temperature difference adjustment method, electrical temperature difference adjustment valve and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100912567A CN101995076A (en) | 2009-08-14 | 2009-08-14 | Electrical temperature difference adjustment method, electrical temperature difference adjustment valve and air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101995076A true CN101995076A (en) | 2011-03-30 |
Family
ID=43785570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100912567A Pending CN101995076A (en) | 2009-08-14 | 2009-08-14 | Electrical temperature difference adjustment method, electrical temperature difference adjustment valve and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101995076A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954557A (en) * | 2011-08-31 | 2013-03-06 | 杭州三花研究院有限公司 | Air-conditioning system |
| CN103307710A (en) * | 2013-06-07 | 2013-09-18 | 昆山市远视商用空调工程有限公司 | Air conditioner starting method |
| CN103423508A (en) * | 2012-05-24 | 2013-12-04 | 杭州三花研究院有限公司 | Control unit and control method for thermal electric regulating valve |
| CN103673201A (en) * | 2012-09-10 | 2014-03-26 | 杭州三花研究院有限公司 | Tail end control system and method of variable-temperature-difference self-adaptive air conditioner |
| CN104390323A (en) * | 2014-12-08 | 2015-03-04 | 中国建筑设计咨询有限公司 | Electric temperature difference control valve of air-conditioning system and temperature difference control method of electric temperature difference control valve |
| CN105066358A (en) * | 2015-08-17 | 2015-11-18 | 烟台荏原空调设备有限公司 | Method and system for automatically adjusting temperature of air conditioning unit |
| CN105352119A (en) * | 2015-11-06 | 2016-02-24 | 珠海格力电器股份有限公司 | Method and device for controlling refrigeration water system in air conditioner |
| CN109237753A (en) * | 2017-05-15 | 2019-01-18 | 郭建良 | Dynamic two temperature balance electric regulating valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331900Y (en) * | 1998-08-05 | 1999-08-04 | 广州新菱冷气集团有限公司 | Variable frequency energy-saving controller for water pump of air conditioner |
| CN2896099Y (en) * | 2006-04-28 | 2007-05-02 | 上海旭宁信息科技有限公司 | Energy-saving control system of central air-conditioner |
| CN101008518A (en) * | 2007-01-23 | 2007-08-01 | 贵州汇通华城楼宇科技有限公司 | Heating ventilating and air conditioning hydraulic dynamic regulation method and device based on energy distribution equilibrium |
-
2009
- 2009-08-14 CN CN2009100912567A patent/CN101995076A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331900Y (en) * | 1998-08-05 | 1999-08-04 | 广州新菱冷气集团有限公司 | Variable frequency energy-saving controller for water pump of air conditioner |
| CN2896099Y (en) * | 2006-04-28 | 2007-05-02 | 上海旭宁信息科技有限公司 | Energy-saving control system of central air-conditioner |
| CN101008518A (en) * | 2007-01-23 | 2007-08-01 | 贵州汇通华城楼宇科技有限公司 | Heating ventilating and air conditioning hydraulic dynamic regulation method and device based on energy distribution equilibrium |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954557A (en) * | 2011-08-31 | 2013-03-06 | 杭州三花研究院有限公司 | Air-conditioning system |
| CN102954557B (en) * | 2011-08-31 | 2016-05-18 | 杭州三花研究院有限公司 | A kind of air-conditioning system |
| CN103423508A (en) * | 2012-05-24 | 2013-12-04 | 杭州三花研究院有限公司 | Control unit and control method for thermal electric regulating valve |
| CN103673201B (en) * | 2012-09-10 | 2017-09-22 | 杭州三花研究院有限公司 | A kind of adaptive air-conditioning end control system of temp.-differential and control method |
| CN103673201A (en) * | 2012-09-10 | 2014-03-26 | 杭州三花研究院有限公司 | Tail end control system and method of variable-temperature-difference self-adaptive air conditioner |
| CN103307710B (en) * | 2013-06-07 | 2016-02-03 | 昆山市远视商用空调工程有限公司 | Starting of air conditioner method |
| CN103307710A (en) * | 2013-06-07 | 2013-09-18 | 昆山市远视商用空调工程有限公司 | Air conditioner starting method |
| CN104390323A (en) * | 2014-12-08 | 2015-03-04 | 中国建筑设计咨询有限公司 | Electric temperature difference control valve of air-conditioning system and temperature difference control method of electric temperature difference control valve |
| CN104390323B (en) * | 2014-12-08 | 2017-02-22 | 中国建筑设计咨询有限公司 | Electric temperature difference control valve of air-conditioning system and temperature difference control method of electric temperature difference control valve |
| CN105066358A (en) * | 2015-08-17 | 2015-11-18 | 烟台荏原空调设备有限公司 | Method and system for automatically adjusting temperature of air conditioning unit |
| CN105066358B (en) * | 2015-08-17 | 2018-03-23 | 荏原冷热系统（中国）有限公司 | A kind of air-conditioner set automatically adjusts the method and system of temperature |
| CN105352119A (en) * | 2015-11-06 | 2016-02-24 | 珠海格力电器股份有限公司 | Method and device for controlling refrigeration water system in air conditioner |
| CN105352119B (en) * | 2015-11-06 | 2018-01-23 | 珠海格力电器股份有限公司 | The control method and device of chilled water system in air-conditioning |
| CN109237753A (en) * | 2017-05-15 | 2019-01-18 | 郭建良 | Dynamic two temperature balance electric regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101995076A (en) | Electrical temperature difference adjustment method, electrical temperature difference adjustment valve and air conditioning system | |
| CN101881498B (en) | Multiple connected air conditioning system and control method thereof | |
| CN107238174A (en) | The control method and device of compressor frequency | |
| CN102455093B (en) | Energy efficiency controlling method for refrigerating system | |
| EP3260788B1 (en) | Air conditioner | |
| CN108151250B (en) | Variable frequency air conditioner control method and device | |
| CN201652653U (en) | Circulating air-conditioning system of liquid pump | |
| CN102954557B (en) | A kind of air-conditioning system | |
| AU2017101902A4 (en) | A single module optimizing controller capable of operating one of a plurality of different types of HVACR systems | |
| CN103868190A (en) | Energy-saving control method suitable for central air-conditioning cooling water system | |
| CN109236622A (en) | A kind of compressor frequency control method, device and air conditioner | |
| CN100441983C (en) | Capacity governing system for heat pumping set | |
| CN101986050A (en) | Method for controlling air-conditioner in variable volume modular unit | |
| Ma et al. | Energy-efficient static pressure reset in VAV systems | |
| CN102418965B (en) | Multifunctional frequency conversion central air-conditioning experimental platform | |
| CN100422651C (en) | Method for controlling multi-type air conditioner | |
| CN108507126A (en) | A kind of fuzzy control method, device and the air-conditioning of central air-conditioning freezing water | |
| CN110454953A (en) | Control method, device and the air conditioner of air conditioner | |
| CN114995543A (en) | Method and device for controlling environment adjusting equipment through Artificial Intelligence (AI) | |
| CN112524746B (en) | Control method for outdoor unit balanced frosting in multi-split air conditioning system | |
| CN103423843B (en) | The method of wind pipe type indoor set and control wind pipe type indoor set capacity | |
| CN114087738A (en) | Control method and device of air conditioner, storage medium and air conditioner | |
| CN103398447B (en) | Indoor set load capacity control system and indoor set load capacity control method | |
| CN107120797B (en) | Frequency conversion control system and frequency conversion control method for precise air conditioner fan | |
| CN101592371A (en) | Multi-split air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 21 Avenue, No. 60 Applicant after: Hangzhou Sanhua Institute Co., Ltd. Address before: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 21 Avenue, No. 60 Applicant before: Hangzhou Sanhua Technology Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HANGZHOU SANHUA TECHNOLOGY CO., LTD. TO: HANGZHOU SANHUA INSTITUTE CO., LTD. |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |