CN203178818U - High-accuracy air volume data acquisition controller - Google Patents
High-accuracy air volume data acquisition controller Download PDFInfo
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- CN203178818U CN203178818U CN 201320068128 CN201320068128U CN203178818U CN 203178818 U CN203178818 U CN 203178818U CN 201320068128 CN201320068128 CN 201320068128 CN 201320068128 U CN201320068128 U CN 201320068128U CN 203178818 U CN203178818 U CN 203178818U
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- air
- controller
- pressure difference
- pressure
- valve
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Abstract
The utility model relates to a high-accuracy air volume data acquisition controller comprising a cylindrical controller housing, a pressure difference transmitter, a controller, an air valve actuator, a regulation valve, and a pressure measuring device. The pressure measuring device is arranged at an air inlet side of the cylindrical controller housing; the regulation valve is arranged on an air outlet side of the cylindrical controller housing through the air valve actuator; the pressure measuring device is connected to the pressure difference transmitter through a hose; and the pressure difference transmitter is connected to the controller through a signal line. The accuracy and reliability of the controller provided by the utility model are greatly improved. The controller can be applied on various combination-type air-conditioning processor sets and air ports with any size in any required occasions. Pressure difference value is measured by the pressure measuring device; the pressure difference transmitter converts the pressure difference value into an air volume value; the value is transmitted to the controller through 0-10V or 4-20mA signals; and the controller sends instructions to control the air valve actuator to regulate the open degree of the regulation valve. The controller is mainly used in the occasions of: (1) comfortable air-conditioner air volume control, and (2) clean workshop air volume control.
Description
Technical field
The utility model relates to air-conditioning and air purification field, is pin-point accuracy air quantity data acquisition controller (device).Be mainly used in combination type air and regulate all occasions of handling unit and needing the collection of pin-point accuracy air quantity and regulating and controlling, be called for short ADC.
Background technology
Existing combination type air is regulated and is handled unit to air quantity control application seldom.A lot of combination type airs are regulated the processing unit does not have air quantity controller at all, has only seldom part band air quantity controller.The principle of work of band air quantity controller is: in the airduct road air velocity transducer is installed, the sectional area that multiply by the place pipeline location by air velocity transducer calculates airflow value.The shortcoming of this mode is the data instability that single air velocity transducer is measured, and causes airflow value inaccurate, has reduced the accuracy of air-conditioning system operation with control.And if it is too high that a plurality of air velocity transducer costs are set.
Summary of the invention
The utility model purpose is to overcome the prior art above shortcomings, and a kind of pin-point accuracy air quantity data acquisition controller (device) ADC is provided.
Pin-point accuracy air quantity data acquisition controller (device) ADC that the utility model provides comprises tubular controller housing, pressure difference transmitter, controller, air-valve actuator, variable valve and pressure tester; Described pressure tester is installed on tubular controller housing air inlet one side, variable valve is installed on tubular controller housing air outlet one side by the air-valve actuator, pressure tester connects pressure difference transmitter by flexible pipe, and controller connects pressure difference transmitter and air-valve actuator respectively by signal wire.
Described variable valve is to be installed in the valve plate that tubular controller housing air outlet one side is used for adjusting the air quantity size.
Described air-valve actuator is the control device of regulating for the air-valve continuous ratio, regulates the equipment of control valve area by the signal that comes self-controller.The air-valve actuator is standardized product, can use the product as the GBB..1E of Siemens Company series, also can use other series of Siemens Company to have product similar function or that other brand has similar function.
Described pressure difference transmitter is the equipment of acoustic wind numerical quantity.The pressure reduction variator is standardized product, can use the triumphant luxuriant CP200 of company product, also can use other series of triumphant luxuriant company to have product similar function or that other brand has similar function.
Described controller is to set air quantity as the debugging foundation, regulates the equipment of valve area by the difference feed valve actuator signal that compares measured value and setting value.Controller is standardized product, can use the product as the RMU of Siemens Company series, also can use other series of Siemens Company to have product similar function or that other brand has similar function.
The utility model can be installed in combination type air and regulate handle on unit air outlet place and any air port that needs the occasion arbitrary dimension.Because the utility model pressure tester is layouted evenly, the method in that the test section adopts multimetering to average can reduce the inaccurate problem of the inhomogeneous data that cause of single-measurement data.And one the cover pressure tester namely can accurately measure airflow value, a plurality of air velocity transducers needn't be set, reduced cost.Pressure tester is made up of windward side and two hollow piezometric tube of lee face, evenly arranges pressure tap on the piezometric tube, and piezometric tube length is with air-valve length.Two piezometric tube are surveyed the total head mean value of windward side and the static pressure mean value of lee face respectively, and dynamic pressure mean value equals total head mean value and subtracts static pressure mean value.(according to the different quantity that increase piezometric tube of air-valve height, to guarantee the pressure measurement accuracy.) a plurality of total head piezometric tube and the static pressure piezometric tube back that is connected in parallel respectively inserts two interfaces of pressure difference transmitter mark total head and static pressure.The mean flow rate v in this cross section can be calculated according to dynamic pressure mean value, airflow value can be calculated by mean flow rate v and sectional area again.Formula is:
L=v×F×3600 (m
3/h)
V: flow velocity, m/s
Pd: dynamic pressure, pa
L: air quantity, m
3/ h
ρ: atmospheric density, kg/m
3
F: pipeline section is long-pending, m
2
Advantage of the present utility model and good effect:
Accuracy and the reliability of pin-point accuracy air quantity data acquisition controller (device) ADC that the utility model provides improve greatly, can be applied to various combination type airs and regulate and handle on units and any air port that needs the occasion arbitrary dimension.Determine pressure difference by pressure tester 6, pressure difference transmitter 2 converts pressure difference to airflow value.Main application scenario is the control of (1) comfort air conditioning system air quantity, the control of (2) dust proof workshop air quantity.
Description of drawings
Fig. 1 is pin-point accuracy air quantity data acquisition controller simplified schematic diagram.
Among the figure, 1. tubular controller housing, 2. pressure difference transmitter, 3. controller, 4. air-valve actuator, 5. variable valve, 6. pressure tester.
Embodiment
Embodiment 1:
Pin-point accuracy air quantity data acquisition controller (device) ADC as shown in Figure 1, the arrow direction is airflow direction.This controller is that a kind of instruction according to controller is carried out the device that aperture is regulated to variable valve.It mainly be installed in combination type air regulate to handle the air outlet place of unit (
This device is not limited to protection and " is installed in combination type air and regulates the air outlet place that handles unit ", also the occasion of protection " be installed on any needs and accurately measure air quantity and regulating and controlling air quantity "), in order to the air output of gathering the air-conditioning unit and the device of adjusting air output.Necessarily press the air-flow direction indication during installation and install, cannot oppositely install.
Described pin-point accuracy air quantity data acquisition controller (device) ADC comprises tubular controller housing 1, pressure difference transmitter 2, controller 3, air-valve actuator 4, variable valve 5 and pressure tester 6; Described pressure tester is installed on tubular controller housing air inlet one side, variable valve is installed on tubular controller housing air outlet one side by the air-valve actuator, pressure tester connects pressure difference transmitter by flexible pipe, and controller connects pressure difference transmitter and air-valve actuator respectively by signal wire.
Described variable valve is to be installed in the valve plate that tubular controller housing air outlet one side is used for adjusting the air quantity size, and the angle of rotational valve plate can be regulated the aperture of valve plate, namely controls the air output size.
Described air-valve actuator is the control device of regulating for the air-valve continuous ratio, regulates the equipment of control valve area by the signal that comes self-controller.The air-valve actuator is standardized product, can use the product as the GBB..1E of Siemens Company series, also can use other series of Siemens Company to have product similar function or that other brand has similar function.
Described pressure difference transmitter is the equipment of acoustic wind numerical quantity.The pressure reduction variator is standardized product, can use the triumphant luxuriant CP200 of company product, also can use other series of triumphant luxuriant company to have product similar function or that other brand has similar function.
Described controller is regulated the equipment of valve area to set air quantity as the debugging foundation by the difference feed valve actuator signal that compares measured value and setting value.
This controller at first is an air quantity pick-up unit, formed by windward side and two hollow piezometric tube of lee face by two that the are located at tubular controller housing 1 inner air inlet place pressure tester 6(pressure tester of measuring total head and static pressure respectively, evenly arrange pressure tap on the piezometric tube, piezometric tube length is with air-valve length.Two piezometric tube are surveyed the total head mean value of windward side and the static pressure mean value of lee face respectively, and dynamic pressure mean value equals total head mean value and subtracts static pressure mean value.According to the different quantity that increase piezometric tube of air-valve height, to guarantee the pressure measurement accuracy.After being connected in parallel respectively, a plurality of total head piezometric tube and static pressure piezometric tube insert two interfaces of pressure difference transmitter 2 mark total heads and static pressure.) measure force value, pass to pressure difference transmitter 2 by flexible pipe, pressure difference transmitter 2 is converted to airflow value with pressure difference, and passes to controller 3 by 0～10V or 4～20mA signal.Controller 3 sends the aperture that instruction is regulated variable valve 5 by 0～10V signal controlling air-valve actuator.Controller is standardized product, can use the product as the RMU of Siemens Company series, also can use other series of Siemens Company to have product similar function or that other brand has similar function.
(1), pin-point accuracy air quantity data acquisition controller (device) ADC can be applicable to the control of comfort air conditioning system air quantity.Control flow is: according to the temperature value of return air sensor mensuration, compare with the design temperature value, after return air reaches design temperature, controller sends instruction, reduce the aperture of pin-point accuracy air quantity data acquisition controller ADC adjusted valve and regulate the minimum air output of handling unit to designing the combination type air that provides, the frequency that reduces fan frequency converter simultaneously reduces air output.
(2), pin-point accuracy air quantity data acquisition controller (device) ADC can be applicable to the control of dust proof workshop air quantity.Control flow is: the air output of measuring according to pin-point accuracy air quantity data acquisition controller ADC, compare with the design air output, after reaching the design air output, controller sends instruction, reduce the aperture of pin-point accuracy air quantity data acquisition controller ADC adjusted valve to design load, the frequency that reduces fan frequency converter simultaneously reduces air output.
(3), above two kinds of application parameter that all can make combination type air regulate handle unit satisfies the design and use requirement, fan operation can play the effect of saves energy in reasonable frequency.
(4), use occasion is extensive, size can customize according to user's request.
Claims (2)
1. a pin-point accuracy air quantity data acquisition controller is characterized in that described controller comprises tubular controller housing, pressure difference transmitter, controller, air-valve actuator, variable valve and pressure tester; Described pressure tester is installed on tubular controller housing air inlet one side, variable valve is installed on tubular controller housing air outlet one side by the air-valve actuator, pressure tester connects pressure difference transmitter by flexible pipe, and controller connects pressure difference transmitter and air-valve actuator respectively by signal wire.
2. pin-point accuracy air quantity data acquisition controller according to claim 1 is characterized in that described variable valve is to be installed in the valve plate that tubular controller housing air outlet one side is used for adjusting the air quantity size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068128 CN203178818U (en) | 2013-02-05 | 2013-02-05 | High-accuracy air volume data acquisition controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068128 CN203178818U (en) | 2013-02-05 | 2013-02-05 | High-accuracy air volume data acquisition controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203178818U true CN203178818U (en) | 2013-09-04 |
Family
ID=49075493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320068128 Expired - Fee Related CN203178818U (en) | 2013-02-05 | 2013-02-05 | High-accuracy air volume data acquisition controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203178818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234805A (en) * | 2017-06-27 | 2017-10-10 | 宁夏共享模具有限公司 | A kind of FDM printers control wind system automatically |
| CN110793115A (en) * | 2019-10-17 | 2020-02-14 | 华润三九（雅安）药业有限公司 | Automatic air quantity measuring and controlling system of clean air conditioning system of pharmaceutical factory |
-
2013
- 2013-02-05 CN CN 201320068128 patent/CN203178818U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234805A (en) * | 2017-06-27 | 2017-10-10 | 宁夏共享模具有限公司 | A kind of FDM printers control wind system automatically |
| CN110793115A (en) * | 2019-10-17 | 2020-02-14 | 华润三九（雅安）药业有限公司 | Automatic air quantity measuring and controlling system of clean air conditioning system of pharmaceutical factory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20190205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |