CN202885180U - Air inlet measurement device for variable air rate air conditioning system - Google Patents
Air inlet measurement device for variable air rate air conditioning system Download PDFInfo
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- CN202885180U CN202885180U CN2012204705845U CN201220470584U CN202885180U CN 202885180 U CN202885180 U CN 202885180U CN 2012204705845 U CN2012204705845 U CN 2012204705845U CN 201220470584 U CN201220470584 U CN 201220470584U CN 202885180 U CN202885180 U CN 202885180U
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- 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
Abstract
The utility model discloses an air inlet measurement device for a variable air rate air conditioning system. The air inlet measurement device for the variable air rate air conditioning system comprises an air inlet pipe. A sectional area control mechanism capable of adjusting the size of a ventilation sectional area is arranged in the air inlet pipe. The sectional area control mechanism controls an air inlet channel which is capable of adjusting the sectional area of the air inlet channel. A wind speed measurement device is arranged in the air inlet channel. According to the air inlet measurement device for the variable air rate air conditioning system, through controlling the ventilation sectional area of the air inlet channel, when air inlet capacity is large, the ventilation sectional area of the air inlet channel is enlarged and wind speed is reduced; when the air inlet capacity is small, the ventilation sectional area of the air inlet channel is decreased, the wind speed is increased and therefore the wind speed of the air inlet channel is maintained in a good speed range, the wind speed in the speed range is the most accurate wind speed range measured by the wind speed measurement device, measurement accuracy of the wind speed measurement device is improved, the wind speed measurement device is enabled to measure the wind speed accurately, the measured wind speed is precise so that the air inlet capacity can be controlled precisely.
Description
Technical field
The utility model relates to the air conditioning system with variable technical field, especially relates to a kind of air intake measurement mechanism of air conditioning system with variable.
Background technology
In the prior art, variable air rate (VAV-Variable Air Volume) system is the air-conditioning system that more full air is decided wind system and fresh air and FCU system advanced person.It has energy-conservation, as can to satisfy not chummery different temperatures control requirement, the indoor advantages such as requirement that air quality is good, the adaptation usage space changes, so in increasing building, be applied, such as Pekinese's China Petroleum Building, State Grid control centre, the buildings such as the Chinese Insurance Building in Shanghai have all adopted air conditioning system with variable.
Air conditioning system with variable with decide the air quantity air-conditioning system and be all-air system, but both have very large difference: (1) is decided the air quantity air-conditioning system and is formed simple, air conditioning system with variable is except the part identical with deciding the air quantity air-conditioning system, end is provided with air quantity variable end device in system, changes the temperature requirement that air output guarantees zones of different by end equipment.(2) deciding the air quantity air-conditioning system is single duct system, air conditioning system with variable has minute (3) in single air channel and two air channels to decide air quantity air conditioner system air blast amount to fix, satisfied the variation of indoor load by the change wind pushing temperature, keep indoor temperature requirements air quantity changeable air conditioner system air blast temperature and fix, air output changes with indoor load.(4) the control parameter of air conditioning system with variable is many, and control is complicated more than constant air volume system.
The form of air conditioning system with variable is relevant with factors such as architectural design, instructions for use and investments, usually is divided into the two kinds of forms in single air channel and two air channels.The double duct system cost is high, and control is complicated, at present domestic seldom employing.Design of VAV System is also relevant with the load subregion in the building, and according to load character, building is divided into inner region and outskirt.Inner region refers to that the room air state is only relevant with indoor load, and with the irrelevant zone of outdoor environment, annual wind pushing temperature is lower than the room air design temperature.Outskirt refers to the surrounding zone of building, and the room air state is relevant with the indoor and outdoor load, and winter or summer send respectively heat, cold wind.
Single duct system has different forms in engineering design: the inside and outside district of (1) building share the mode in same air channel.In this mode, inside and outside district through the air-supply of same air channel, send cold wind by same air quantity variable air conditioner unit the whole year.Inside and outside district adopts different single air flue variable wind rate terminal devices.(2) the inside and outside district of building arranges respectively the mode in air channel.
In this mode, inside and outside district is by different variable air rate unit blasting airs, and at inner region, unit send cold wind the whole year, and at outskirt, unit in summer send cold wind, send hot blast winter.Air quantity variable end device all adopts single air channel basic model.(3) building without obvious inside and outside district minute, air conditioning area is by the mode of a variable air rate unit blasting air.System send hot blast, summer to send cold wind winter.Root grab architectural plane layout and towards, dissimilar end equipments is set.
Air conditioning system with variable can simply be regarded as by the air quantity variable air conditioner unit, air quantity variable end device, the parts such as air-conditioning object and air blow and return pipeline, air quantity variable end device (VAV Terminal Unit) often is known as again the present air quantity variable end device of VAV BOX and all adopts pressure independent type (Pressure idependent), its air output is only relevant with indoor load, irrelevant with the system blast pressure, it can compensate the variation of blast pressure quickly, VAV BOX has dividing of basic model and fan powered (FPB-FanPowered BOX), and whether end equipment is with dividing of reheater in addition on this basis.In addition, cooperate the form of air conditioning system with variable, end equipment also is divided into single air duct type and two air duct type.
Air quantity variable end device is provided with volume damper in casing.The first is to be provided with a cross Pitot tube 4 in blast pipe, is called Pitot tubular type wind speed and surveys device, and it is used for measuring the air output of end equipment, and Pitot tube 4 directly links to each other with two plastics one sampling pipes of pressure difference transmitter 5 usefulness of the little case internal controller in right side.
The second is that a variable resistor silk 6 of reeling is set in blast pipe, be called hot-wire array and survey device, variable resistor silk 6 be horizontally through blast pipe, the two ends of variable resistor silk 6 connect respectively measuring circuit, the measuring wind by the deflection of variable resistor silk 6.
And the air intake passage of the blast pipe of prior art is changeless, the ventilation-sectional area of air intake passage is changeless, but intake is but changing, especially at spring and fall, the indoor and outdoor temperature difference is less, in the scope that the load of air-conditioning system allows, is drawn into the outdoor air amount and reaches energy-conservation purpose mainly with the usefulness as Free Cooling, intake is larger, and wind speed is larger.But in summer and winter, the indoor and outdoor temperature difference is larger, and for reducing the load of air-conditioning system, it is less to be drawn into the outdoor air amount, and intake is less, and wind speed is less.
Therefore, in different seasons, the intake difference of blast pipe is larger, above-mentioned Pitot tubular type wind speed surveys device and hot-wire array survey device then can't adapt to, can not Measurement accuracy wind speed and intake, especially for the measurement of hanging down wind speed, low intake, because air quantity is less, wind speed is very low, and in such cases, Pitot tubular type wind speed surveys device and hot-wire array survey device is all extremely insensitive, measurement result will be very inaccurate, therefore, the regulation and control of intake is also very inaccurate, therefore is necessary to be improved.
The utility model content
For the deficiency that prior art exists, the purpose of this utility model provides a kind of air intake measurement mechanism of air conditioning system with variable, and it is simple in structure, accurate measuring wind, thus can accurately control intake.
To achieve these goals, the technical scheme that adopts of the utility model is:
A kind of air intake measurement mechanism of air conditioning system with variable, comprise blast pipe, be provided with the sectional area controlling organization of the size that can regulate its ventilation-sectional area in the blast pipe, the control of sectional area controlling organization is provided with the air intake passage that can regulate its sectional area size, and wind speed measuring device is arranged in the air intake passage.
Described sectional area controlling organization comprises the upper air inlet board component that can regulate its position and can regulate the lower air intake plate assembly of its position, forms described air intake passage between upper air inlet board component and the lower air intake plate assembly.
Described sectional area controlling organization comprises a drive unit, and drive unit connects respectively upper air inlet board component and lower air intake plate assembly.
Described upper air inlet board component comprises the first front side board, the first intermediate plate and the first back side panel successively along the air intake direction, the both sides of the first intermediate plate are articulated in respectively the inboard of the first front side board and the inboard of the first back side panel, and the outside of outer first back side panel of the first front side board is articulated in respectively the upside tube wall of blast pipe.
Described lower air intake plate assembly comprises the second front side board, the second intermediate plate and the second back side panel successively along the air intake direction, the both sides of the second intermediate plate are articulated in respectively the inboard of the second front side board and the inboard of the second back side panel, and the outside of the outside of the second front side board and the second back side panel is articulated in respectively the downside tube wall of blast pipe.
Described the first intermediate plate and the second intermediate plate be arranged in parallel, and the tube wall of the first intermediate plate, the second intermediate plate and blast pipe both sides surrounds the air intake passage of a four sides sealing, both ends open.
Described drive unit drives respectively upper air inlet board component and lower air intake plate assembly and regulates spacing between the first intermediate plate and the second intermediate plate.
Described the first front side board and the second front side board are obliquely installed, and the first front side board and the second front side board be angle in obtuse angle, and the tube wall of the first front side board, the second front side board and blast pipe both sides forms the air suction inlet of the open type of a horn mouth shape.
Described the first back side panel and the second back side panel are obliquely installed, and the first back side panel and the second back side panel be angle in obtuse angle, and the tube wall of the first back side panel, the second back side panel and blast pipe both sides forms the air outflow port of the open type of a horn mouth shape.
Described drive unit connects inboard and/or first back side panel of the first front side board, and drive unit connects inboard and/or second back side panel of the second front side board.
After adopting said structure, the utility model is compared with existing technology the advantage that has and is:
The utility model is by the ventilation-sectional area of control air intake passage, when intake is large, enlarge the ventilation-sectional area of air intake passage, reducing wind speed, when intake is little, dwindle the ventilation-sectional area of air intake passage, improve wind speed, thereby the wind speed by air intake passage is remained in the better velocity interval, and the wind speed of this velocity interval to be wind speed measuring device measure the most accurately wind speed range, improve the certainty of measurement of wind speed measuring device, make the wind speed measuring device can the Measurement accuracy wind speed, measuring wind is more accurate, thereby can accurately control intake.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation that the Pitot tubular type wind speed of prior art is surveyed device.
Fig. 2 is the structural representation that this hot-wire array of prior art is surveyed device.
Fig. 3 is structural representation of the present utility model.
Among the figure: 1, blast pipe 2, air intake passage 3, wind speed measuring device 4, Pitot tube 5, pressure difference transmitter 6, variable resistor silk 11, the first front side board 12, the first intermediate plate 13, the first back side panel 21, the second front side board 22, the second intermediate plate 23, the second back side panel.
The specific embodiment
The following stated only is preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.
Embodiment, as shown in Figure 3: a kind of air intake measurement mechanism of air conditioning system with variable, comprise blast pipe 1, be provided with the sectional area controlling organization of the size that can regulate its ventilation-sectional area in the blast pipe 1, the control of sectional area controlling organization is provided with the air intake passage 2 that can regulate its sectional area size, and wind speed measuring device 3 is arranged in the air intake passage 2.The utility model is by the ventilation-sectional area of control air intake passage 2, when intake is large, enlarge the ventilation-sectional area of air intake passage 2, reducing wind speed, when intake is little, dwindle the ventilation-sectional area of air intake passage 2, improve wind speed, thereby the wind speed by air intake passage 2 is remained in the better velocity interval, and the wind speed of this velocity interval to be wind speed measuring device 3 measure the most accurately wind speed range, improve the certainty of measurement of wind speed measuring device 3, make the wind speed measuring device 3 can the Measurement accuracy wind speed, measuring wind is more accurate, thereby can accurately control intake.
The sectional area controlling organization comprises the upper air inlet board component that can regulate its position and can regulate the lower air intake plate assembly of its position, forms described air intake passage 2 between upper air inlet board component and the lower air intake plate assembly.The sectional area controlling organization comprises a drive unit, and drive unit connects respectively upper air inlet board component and lower air intake plate assembly.The ventilation-sectional area of regulating air intake passage 2 by the upper-lower position of control upper air inlet board component and lower air intake plate assembly, thus wind speed by air intake passage 2 changed.
The upper air inlet board component comprises the first front side board 11, the first intermediate plate 12 and the first back side panel 13 successively along the air intake direction, the both sides of the first intermediate plate 12 are articulated in respectively the inboard of the first front side board 11 and the inboard of the first back side panel 13, and the outside of outer first back side panel 13 of the first front side board 11 is articulated in respectively the upside tube wall of blast pipe 1.Lower air intake plate assembly comprises the second front side board 21, the second intermediate plate 22 and the second back side panel 23 successively along the air intake direction, the both sides of the second intermediate plate 22 are articulated in respectively the inboard of the second front side board 21 and the inboard of the second back side panel 23, and the outside of the outside of the second front side board 21 and the second back side panel 23 is articulated in respectively the downside tube wall of blast pipe 1.Drive unit is connected in inboard and/or first back side panel 13 of the first front side board 11, change the position of the first intermediate plate 12 by inboard and/or first back side panel 13 of rotation or mobile the first front side board 11, in like manner, drive unit is connected in inboard and/or second back side panel 23 of the second front side board 21, change the position of the second intermediate plate 22 by inboard and/or second back side panel 23 of rotation or mobile the second front side board 21, thereby realize the ventilation-sectional area of adjusting air intake passage 2.
The first intermediate plate 12 and the second intermediate plate 22 be arranged in parallel, and the tube wall of the first intermediate plate 12, the second intermediate plate 22 and blast pipe 1 both sides surrounds the air intake passage 2 of a four sides sealing, both ends open.Drive unit drives respectively upper air inlet board component and lower air intake plate assembly and regulates spacing between the first intermediate plate 12 and the second intermediate plate 22.Change the ventilation-sectional area that spacing between the first intermediate plate 12 and the second intermediate plate 22 namely can change air intake passage 2.
The first front side board 11 and the second front side board 21 are obliquely installed, the first front side board 11 and the second front side board 21 be angle in obtuse angle, the tube wall of the first front side board 11, the second front side board 21 and blast pipe 1 both sides forms the air suction inlet of the open type of a horn mouth shape, makes blast pipe 1 air amount easier.The first back side panel 13 and the second back side panel 23 are obliquely installed, the first back side panel 13 and the second back side panel 23 be angle in obtuse angle, the tube wall of the first back side panel 13, the second back side panel 23 and blast pipe 1 both sides forms the air outflow port of the open type of a horn mouth shape, and the air-stable that blast pipe 1 is sucked flow into by in the pipeline.
Air conditioning system with variable is widely used at present, and other structure and principle are same as the prior art, repeat no more here.
Claims (10)
1. the air intake measurement mechanism of an air conditioning system with variable, comprise blast pipe (1), it is characterized in that: the sectional area controlling organization that is provided with the size that to regulate its ventilation-sectional area in the blast pipe (1), the control of sectional area controlling organization is provided with the air intake passage (2) that can regulate its sectional area size, and wind speed measuring device (3) is arranged in the air intake passage (2).
2. the air intake measurement mechanism of a kind of air conditioning system with variable according to claim 1, it is characterized in that: described sectional area controlling organization comprises the upper air inlet board component that can regulate its position and can regulate the lower air intake plate assembly of its position, forms described air intake passage (2) between upper air inlet board component and the lower air intake plate assembly.
3. the air intake measurement mechanism of a kind of air conditioning system with variable according to claim 2, it is characterized in that: described sectional area controlling organization comprises a drive unit, drive unit connects respectively upper air inlet board component and lower air intake plate assembly.
4. the air intake measurement mechanism of a kind of air conditioning system with variable according to claim 3, it is characterized in that: described upper air inlet board component comprises the first front side board (11), the first intermediate plate (12) and the first back side panel (13) successively along the air intake direction, the both sides of the first intermediate plate (12) are articulated in respectively the inboard of the first front side board (11) and the inboard of the first back side panel (13), and the outside of outer first back side panel (13) of the first front side board (11) is articulated in respectively the upside tube wall of blast pipe (1).
5. the air intake measurement mechanism of a kind of air conditioning system with variable according to claim 4, it is characterized in that: described lower air intake plate assembly comprises the second front side board (21), the second intermediate plate (22) and the second back side panel (23) successively along the air intake direction, the both sides of the second intermediate plate (22) are articulated in respectively the inboard of the second front side board (21) and the inboard of the second back side panel (23), and the outside of the outside of the second front side board (21) and the second back side panel (23) is articulated in respectively the downside tube wall of blast pipe (1).
6. the air intake measurement mechanism of a kind of air conditioning system with variable according to claim 5, it is characterized in that: described the first intermediate plate (12) and the second intermediate plate (22) be arranged in parallel, and the tube wall of the first intermediate plate (12), the second intermediate plate (22) and blast pipe (1) both sides surrounds the air intake passage (2) of a four sides sealing, both ends open.
7. the air intake measurement mechanism of a kind of air conditioning system with variable according to claim 5 is characterized in that: described drive unit drives respectively upper air inlet board component and lower air intake plate assembly and regulates spacing between the first intermediate plate (12) and the second intermediate plate (22).
8. the air intake measurement mechanism of a kind of air conditioning system with variable according to claim 5, it is characterized in that: described the first front side board (11) and the second front side board (21) are obliquely installed, the first front side board (11) and the second front side board (21) be angle in obtuse angle, and the tube wall of the first front side board (11), the second front side board (21) and blast pipe (1) both sides forms the air suction inlet of the open type of a horn mouth shape.
9. the air intake measurement mechanism of a kind of air conditioning system with variable according to claim 5, it is characterized in that: described the first back side panel (13) and the second back side panel (23) are obliquely installed, the first back side panel (13) and the second back side panel (23) be angle in obtuse angle, and the tube wall of the first back side panel (13), the second back side panel (23) and blast pipe (1) both sides forms the air outflow port of the open type of a horn mouth shape.
10. the air intake measurement mechanism of a kind of air conditioning system with variable according to claim 5, it is characterized in that: described drive unit connects inboard and/or first back side panel (13) of the first front side board (11), and drive unit connects inboard and/or second back side panel (23) of the second front side board (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012204705845U CN202885180U (en) | 2012-09-14 | 2012-09-14 | Air inlet measurement device for variable air rate air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012204705845U CN202885180U (en) | 2012-09-14 | 2012-09-14 | Air inlet measurement device for variable air rate air conditioning system |
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| CN2012204705845U Expired - Lifetime CN202885180U (en) | 2012-09-14 | 2012-09-14 | Air inlet measurement device for variable air rate air conditioning system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296248A (en) * | 2013-07-16 | 2015-01-21 | 珠海格力电器股份有限公司 | Air cleaning machine |
| CN108223461A (en) * | 2016-12-10 | 2018-06-29 | 沈阳铝镁设计研究院有限公司 | A kind of axial flow blower with movable rack honeycomb |
| CN114811934A (en) * | 2021-01-21 | 2022-07-29 | 中国船舶重工集团公司第七一一研究所 | Noise control method for self-cooling type draught fan room and air blower room |
| CN114811888A (en) * | 2021-01-21 | 2022-07-29 | 中国船舶重工集团公司第七一一研究所 | Noise control method for self-cooling type air blower room |
-
2012
- 2012-09-14 CN CN2012204705845U patent/CN202885180U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296248A (en) * | 2013-07-16 | 2015-01-21 | 珠海格力电器股份有限公司 | Air cleaning machine |
| CN104296248B (en) * | 2013-07-16 | 2019-04-26 | 珠海格力电器股份有限公司 | A kind of air cleaner |
| CN108223461A (en) * | 2016-12-10 | 2018-06-29 | 沈阳铝镁设计研究院有限公司 | A kind of axial flow blower with movable rack honeycomb |
| CN114811934A (en) * | 2021-01-21 | 2022-07-29 | 中国船舶重工集团公司第七一一研究所 | Noise control method for self-cooling type draught fan room and air blower room |
| CN114811888A (en) * | 2021-01-21 | 2022-07-29 | 中国船舶重工集团公司第七一一研究所 | Noise control method for self-cooling type air blower room |
| CN114811888B (en) * | 2021-01-21 | 2024-03-22 | 中国船舶集团有限公司第七一一研究所 | Self-cooling type blower room noise control method |
| CN114811934B (en) * | 2021-01-21 | 2024-03-22 | 中国船舶集团有限公司第七一一研究所 | Noise control method for self-cooling induced air machine room and blower machine room |
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Granted publication date: 20130417 |