CN2775530Y - Variable air end device - Google Patents
Variable air end device Download PDFInfo
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- CN2775530Y CN2775530Y CN 200520100295 CN200520100295U CN2775530Y CN 2775530 Y CN2775530 Y CN 2775530Y CN 200520100295 CN200520100295 CN 200520100295 CN 200520100295 U CN200520100295 U CN 200520100295U CN 2775530 Y CN2775530 Y CN 2775530Y
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- 239000000203 mixture Substances 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses an air flow regulating device, which is aimed to provide a fan dynamic type variable air flow intelligent end device which is applied to a multi-fan air conditioning system with variable air flow. The variable air flow intelligent end device of the utility model comprises a box body, a fan, an air inlet of secondary returning air and an air inlet of primary air, wherein the air inlet of primary air is provided with a mechanical self-operated type air flow self-balancing electric air valve which can regulate the air input. The utility model has stabilization and reliability, and can keep high precision in a wide pressure range. The utility model has the advantages of low energy consumption, low cost, convenient installation and simple operation and maintenance.
Description
Technical field
The utility model relates to a kind of volume adjusting apparatus.More particularly, the utility model relates to and a kind ofly has wind air quantity of mechanical self-operated type and control fan powered variable air rate function, that can be applicable to multi-blower air conditioning system with variable wind flow intelligence end equipment automatically.
Background technology
Air conditioning system with variable is that system's air output is regulated and a kind of air-conditioning system of control area (indoor) air quality by changing.Advantages such as air conditioning system with variable is good owing to comfortableness, energy consumption is low, initial outlay is little, Region control is flexible, equipment control is convenient, maintenance cost is low, system extension is easy will be widely applied in China.Air conditioning system with variable is one and is subject to interference, highly non-linear, highly probabilistic stochastic system, though the control method with regard to air conditioning system with variable has different various viewpoints, but all be to become static pressure round intelligence to become temperature controlled thought, key point is how to measure and the air quantity that feeds back each end equipment, calculates system's total blast volume.
Air measuring technology by end equipment is classified, and the air quantity variable end device of present known fan powered has two kinds of forms:
A kind of is fan powered vav terminal with direct apparatus for measuring air quantity, comprise volume damper, blast volume controller, apparatus for measuring air quantity, casing, air inlet, blower fan, motor, air outlet composition, the air quantity feedback of this device is directly perceived, simple, certainty of measurement is higher, and shortcoming is: (1) though terminal apparatus for measuring air quantity complicated and cost an arm and a leg, certainty of measurement is higher but be subject to the influence of mounting means, application scenario etc.; (2) system engineering equipment manufacturing cost height, operation and maintenance relative complex; (3) terminal air quantity is regulated and is associated with the airduct ductwork pressure, if airduct network system imbalance during actual motion causes serious control oscillatory occurences easily, and causes the waste of energy consumption and the raising of noise.
Another kind is the fan powered vav terminal that obtains air quantity by indirect calculation, comprises casing, air inlet, blower fan, adjustable motor, air outlet, Common Controller composition, and it does not have direct apparatus for measuring air quantity.It is the effect that reaches variable air rate by the motor of a converter technique or a wind blower fan of time variant voltage technology stepless speed regulation that the air quantity of this device is regulated, with respect to preceding a kind of for the energy saving of system effect more obvious, be subjected to air channel pressure variable effect little, but shortcoming is: (1) end equipment is by calculating the air quantity of a wind, there is very big approximation in this method, and computational solution precision is low.The end equipment of fan type also is associated with the pressure of airduct pipe network after all, can not realize that the indirect calculation of flow is (if adopt converter technique by simple conversion relation formula, suppose that flow and frequency are linear, the flow rate calculation error is very big when being applied to the pipe network system of pressure correlation type according to the method for frequency computation part outflow; And if the method that adopts stepless time variant voltage technology to come the indirect calculation compressor flow is also lower than the precision of VFC, and electromagnetic pollution is very serious; (2) RHVC cost an arm and a leg, operation and maintenance expense height, electric and instrument system complex structure, easily produce electromagnetic radiation, the system engineering cost is higher; (3) though the little blower fan in the end equipment can pass through variable-frequency speed-adjusting energy-saving, the increase of the total blast volume error of calculation can be wasted system's total energy consumption on the contrary, be reduced system's comfortableness.When certain end is stopped using, do not consider the automatic closing function of a wind of this end, also can waste energy consumption.(4) up-to-date end equipment technology also being arranged is that a wind air intake is set up different little blower fans respectively with the secondary return air place, mix by jet, a wind air intake of this mode is difficult for fully mixing with secondary return air, easily cause the air outlet temperature distributing disproportionation even, system reliability descends, cost obviously increases, control mode is more numerous and diverse; (5) the fan powered end equipment of realizing by Technology of stepless such as frequency conversions for wind air quantity still is associated with the pressure of airduct pipe network in essence.This unbalanced fluid pipe network system exists the wild effect of control equally, has wasted system energy consumption, has improved system noise.
The end equipment that adopts a kind of mechanical self-operated type air mass flow automatic balance function is the best means that solves air quantity variable air conditioner pipe network system air balance.
The at present known intelligent end equipment of the fan powered variable air rate that adopts wind air quantity of mechanical self-operated type to control function automatically of also finding.
Summary of the invention
Main purpose of the present utility model is to overcome deficiency of the prior art, the fan powered variable air rate intelligence end equipment that provides wind air quantity of a kind of mechanical self-operated type to control function automatically.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model provides a kind of variable air rate intelligence end equipment, comprise casing 100, blower fan 106, secondary return air air inlet 101 and a wind air inlet 102, it is characterized in that described wind air inlet 102 places are equipped with the Electric air valve 103 that can regulate intake.
A wind air inlet 102 described in the utility model and secondary return air air inlet 101 can be installed on any one panel except that the cabinet panel at fan outlet 105 places.
Secondary return air air inlet described in the utility model 101 places are equipped with a leaf filter 104.
The motor 107 of direct connection blower fan 106 also is installed in the casing 100 described in the utility model.
The Electric air valve 103 that can regulate intake described in the utility model is the self balancing Electric air valves of mechanical self-operated type air mass flow, comprises control valve valve body 1, is furnished with an electronic center line valve plate 8 at the end of valve body, links to each other with a YE 9; The inside of control valve valve body 1 also has following symmetrical structure: both sides respectively have a streamlined lightweight valve plate 6 to be installed on the control valve valve body 1 by hinge 4 is installed; Respectively there is a high accuracy flexural spring 2 to be installed on the control valve valve body 1, and is being pressed on after the initial deformation on lightweight valve plate 6 one sides; Respectively there is a guiding mechanism 5 that is fixed on the control valve valve body 1 to withstand the another side of lightweight valve plate 6, can changes the initial position of lightweight valve plate 6; Control valve valve body 1 middle part is provided with the pin 7 in restriction lightweight valve plate 6 final positions.
The exit of control valve valve body 1 described in the utility model also is provided with some deflectors 3 that improve the air current composition form.
107, one intelligent temperature controllers of motor of direct connection blower fan 106 also are installed in the casing 100 described in the utility model, are connected to YE 9 and motor 107 respectively by cable.
Electronic center line valve plate 8 described in the utility model links to each other with YE 9 by turning cylinder 10, and electronic center line valve plate 8 can rotate around turning cylinder 10, and described YE 9 can be an angle stroke YE.
Compared with prior art, the beneficial effects of the utility model are:
When (1) Electric air valve of band spring auto-reset function is opened, open a wind air inlet of intelligent end equipment, the air quantity of a wind is mechanical self-operated type automatic constant, thoroughly be not subjected to the influence of air conditioning duct system ductwork pressure fluctuation, the permanent wind amount device of this pressure independent type is not only reliable and stable but also keep high accuracy in very wide pressure limit; (2) in case power failure or intelligent temperature controller output shutdown signal rely on spring force to close the air inlet of a wind, energy efficient automatically; (3) wind at first pass through with secondary return air and mix, and carry the back leaving air temp more even by blower fan power; Utilize the switching value signal cycle of intelligent temperature controller output control the scheme of three fast blower fans not only reliable stable, comfortableness is good, and energy-saving effect is fairly obvious equally; (4) utilize proportional integral (PI) algorithm of general intelligent temperature controller to control indoor temperature automatically, can reach the variable air rate effect in zone or room equally, and cost is low, easy for installation, operation maintenance is simple; (5) utilize the communication function (closing of contact number of relay when perhaps utilizing motor-driven valve to open) of intelligent temperature controller, count unlatching number, and the rated designs air quantity (being exactly the actual motion air quantity) of a wind corresponding of respective ends device with it, can calculate the total blast volume of air-conditioning system fast, this is a kind of simple and effective air quantity-changeable air conditioning system employing total air quantity calculation control strategy; (6) as long as guarantee the preceding minimum static pressure of the valve of least favorable end, comfortableness that just can guarantee whole system and stable control, a wind of each end neither can the inflow-rate of water turbine operations, can the operation of undercurrent amount yet, also guaranteed the energy-conservation and minimal noise control of maximization of system simultaneously.
Description of drawings
Fig. 1 is the box inner structure schematic diagram of embodiment 1 of the present utility model;
Fig. 2 is the left view of box inner structure among Fig. 1;
Fig. 3 be among Fig. 1 casing A to the panel construction schematic diagram;
Fig. 4 be among Fig. 1 casing B to the panel construction schematic diagram;
Fig. 5 is the structural representation of Mechanical Self-Operated Air Flow Self-Balancing Electric Air Valve.
The specific embodiment
With reference to figures 1 through 3, will be described in detail the utility model below.
Specific embodiment 1 provides a kind of air quantity variable end device, comprises casing 100, and blower fan 106 is installed on the one side panel, and the air outlet flange of blower fan 106 connects 105, one three fast tap motors 107 of air outlet by the head that is flexible coupling and connects blower fan 106.Wind air inlet 102 and secondary return air air inlet 101 are installed on the relative side box body panel of air outlet 105.Secondary return air air inlet 101 places are equipped with 104, wind air inlet 102 places of a leaf filter Electric air valve 103 that can regulate intake are installed.
The Electric air valve 103 that can regulate intake in the present embodiment is Mechanical Self-Operated Air Flow Self-Balancing Electric Air Valves, comprise control valve valve body 1, valve inner has following symmetrical structure: both sides respectively have a lightweight valve plate 6 to be installed on the control valve valve body 1 by hinge 4 is installed; Respectively there is a high accuracy stainless steel flexural spring 2 to be installed on the control valve valve body 1, and is being pressed in after the initial deformation on lightweight valve plate 6 one sides; Respectively there is a guiding mechanism 5 that is fixed on the control valve valve body 1 to withstand the another side of lightweight valve plate 6, can changes the initial position of lightweight valve plate 6; Control valve valve body 1 middle part is provided with the pin 7 in restriction lightweight valve plate 6 final positions; The exit of control valve valve body 1 also is provided with the deflector 3 of some adjustment air flow states.
Be furnished with an electronic center line valve plate 8 at control valve valve body 1 end, link to each other with a YE 9.Electronic center line valve plate 8 links to each other with YE 9 by turning cylinder 10, and electronic center line valve plate 8 can rotate around turning cylinder 10.Described YE 9 is angle stroke YEs.
Present embodiment also disposes an intelligent temperature controller, is connected to YE 9 and motor 107 respectively by cable.
The universal product that the integrated indoor mount type intelligent temperature controller of band temperature sensor is a standard.
The technological principle that its technical problem that solves the utility model adopts is:
After the control signal that receives intelligent temperature controller output, angle stroke YE 9 is opened electronic center line valve plate 8, and center line valve plate 8 is parallel to come flow path direction at this moment.High accuracy flexural spring 2 is given 6 one precompressed moment of streamlined lightweight valve plate M1, makes lightweight valve plate 6 rest on initial position by guiding mechanism 5, and this initial position can utilize guiding mechanism to preestablish adjustment.When the airflow passes control valve, lightweight valve plate 6 both sides produce pressure drop Δ P, and pressure drop Δ P makes air-flow give lightweight valve plate 6 rightabout moment M2 to 6 one of generation of lightweight valve plate and high accuracy flexural spring 2.When air-flow acted on enhancing to lightweight valve plate 6, pressure drop Δ P also increased thereupon, and M2 also increases.As M2 during greater than M1, lightweight valve plate 6 is to the closing direction action, and high accuracy flexural spring 2 also increases to M3 for lightweight valve plate 6 moments, reaches the balance of moment at last, makes valve plate rest on a new position, this moment M2=M3.Because lightweight valve plate 6 is to the closing direction action, the flow area A of control valve reduces, and the resistance coefficient ら of control valve is strengthened.
If represent the position of lightweight valve plate 6 with lightweight valve plate 6 and the folded angle θ in side of control valve valve body 1, M3 is expressed as the function of θ:
M3＝M3(θ)
M2 also can be expressed as the function of θ and Δ P:
M2＝M2(θ，ΔP)
When equalising torque:
M3＝M2
Δ P is just about the function of θ like this:
ΔP＝ΔP(θ)
Dimensionless resistance coefficient ら also can be expressed as the function of θ: ら=ら (θ)
Flow area A also can be expressed as the function of θ: A=A (θ)
Suppose atmospheric density ρ, by can the flow through air quantity Q of control valve of fluid mechanics equation:
Utilize the high precision nonlinear flexural spring to set up rational simulative relation, keep air quantity Q to become irrelevant constant, thereby guarantee the automatic constant control of a wind air inlet air quantity with θ.
When intelligent temperature controller is worked, open the center line valve plate 8 of Electric air valve automatically by the control signal of output switching value, the air quantity of promptly having opened 102, wind of a wind air inlet of intelligent end equipment keeps automatic constant by mechanical self-operated type.Flow through from the logical secondary return air air inlet 101 of the return air in room and at first to mix after leaf filter filters 104 with a wind.Under the constant condition of wind air quantity, when three fast blower fans were in different speed, the mixed proportion of wind and secondary return air was different, thereby by the different wind pushing temperature of blower fan dynamic Control output.And indoor temperature to be the switch of automatic loop control three fast blower fans of proportional integral (PI) algorithm by intelligent temperature controller and Electric air valve realize control automatically finally reaching indoor intelligent variable air rate effect.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.
For example: a wind air inlet 102 described in the utility model and secondary return air air inlet 101 can be installed on any one panel except that the cabinet panel at fan outlet 105 places.
For example: a Mechanical Self-Operated Air Flow Self-Balancing Electric Air Valve 103 described in the utility model can adopt the mechanical self-operated type air mass flow automatic balancing valve combination of a plurality of modularizations and evenly install, a shared electronic center line valve plate and a shared YE, to shorten flow direction dimension, improve the control accuracy of a wind intake.
All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (10)
1, a kind of air quantity variable end device, comprise casing (100), blower fan (106), a wind air inlet (102) and secondary return air air inlet (101), it is characterized in that a described wind air inlet (102) locates to be equipped with at least one Electric air valve (103) of control intake automatically.
2, air quantity variable end device according to claim 1 is characterized in that, a described wind air inlet (102) and secondary return air air inlet (101) can be installed on any one panel except that the cabinet panel at fan outlet (105) place.
3, air quantity variable end device according to claim 1 is characterized in that, described secondary return air air inlet (101) locates to be equipped with a leaf filter (104).
4, air quantity variable end device according to claim 1 is characterized in that, the motor (107) of direct connection blower fan (106) also is installed in the described casing (100).
5, air quantity variable end device according to claim 4 is characterized in that, described motor (107) is three fast tap motors.
6, according to right 1 described air quantity variable end device, it is characterized in that, the described Electric air valve (103) that can control intake automatically is a self balancing Electric air valve of mechanical self-operated type air mass flow, comprise control valve valve body (1), be provided with an electronic center line valve plate (8) at the valve body end, link to each other with a YE (9); Valve inner also has following symmetrical structure: both sides respectively have a fairshaped lightweight valve plate (6) to be installed on the control valve valve body (1) by hinge (4) is installed; Respectively there is a high accuracy flexural spring (2) to be installed on the control valve valve body (1), and is being pressed on after the initial deformation on lightweight valve plate (6) one side; Respectively there is a guiding mechanism (5) that is fixed on the control valve valve body (1) to withstand the another side of lightweight valve plate (6), can changes the initial position of lightweight valve plate (6); Control valve valve body (1) middle part is provided with the pin (7) in restriction lightweight valve plate (a 6) final position.
7, air quantity variable end device according to claim 6 is characterized in that, the exit of described control valve valve body (1) also is provided with some deflectors (3) that improve the air current composition form.
8, any one air quantity variable end device according to claim 6, it is characterized in that, the motor (107) of direct connection blower fan (106) also is installed in the described casing (100), and an intelligent temperature controller is connected to YE (9) and motor (107) respectively by cable.
9, air quantity variable end device according to claim 6, it is characterized in that, described electronic center line valve plate (8) links to each other with YE (9) by turning cylinder (10), electronic center line valve plate (8) can center on turning cylinder (10) and rotate, and described YE (9) can be an angle stroke YE.
10, air quantity variable end device according to claim 6 is characterized in that, when described Electric air valve (103) is a plurality of, can adopt a plurality of modularization form combinations that a shared electronic center line valve plate and YE evenly are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100295 CN2775530Y (en) | 2005-01-25 | 2005-01-25 | Variable air end device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100295 CN2775530Y (en) | 2005-01-25 | 2005-01-25 | Variable air end device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775530Y true CN2775530Y (en) | 2006-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520100295 Expired - Lifetime CN2775530Y (en) | 2005-01-25 | 2005-01-25 | Variable air end device |
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| CN (1) | CN2775530Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8963465B2 (en) | 2011-10-25 | 2015-02-24 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Multi-pressure-quantity fan control system and computer system having the same |
| CN109611950A (en) * | 2018-12-07 | 2019-04-12 | 武汉海翼科技有限公司 | A kind of structure design of integrated form fan powered ventilation terminal |
-
2005
- 2005-01-25 CN CN 200520100295 patent/CN2775530Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8963465B2 (en) | 2011-10-25 | 2015-02-24 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Multi-pressure-quantity fan control system and computer system having the same |
| CN109611950A (en) * | 2018-12-07 | 2019-04-12 | 武汉海翼科技有限公司 | A kind of structure design of integrated form fan powered ventilation terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang University Artificial Environment Engineering Tech. Co., Ltd Assignor: Shen Xinrong Contract fulfillment period: 2008.8.5 to 2015.1.24 Contract record no.: 2008330000367 Denomination of utility model: Air quantity testing method and device used for changeable air quantity terminal device Granted publication date: 20060426 License type: Exclusive license Record date: 20080905 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.5 TO 2015.1.24 Name of requester: HANGZHOU ZHEJIANG UNIVERSITY ARTIFICIAL ENVIRONME Effective date: 20080905 |
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| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU ZHEDA TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHEN XINRONG Effective date: 20100329 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310011 BUILDING 3, NO.691, MOGANSHAN ROAD, HANGZHOU CITY, ZHEJIANG PROVINCETO: 310012 BUILDING 6, LIYUAN BUILDING, NO.88, JIAOGONG ROAD, XIHU DISTRICT, HANGZHOU CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100329 Address after: Hangzhou City, Zhejiang Province, 310012 teachers in Xihu District Liyuan Road No. 88 building 6 floor Patentee after: Hangzhou Zheda Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 310011 Moganshan Road No. 691 on the third. Patentee before: Shen Xinrong |
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| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150125 Granted publication date: 20060426 |