CN206600904U - A kind of indoor fresh air amount control device - Google Patents

A kind of indoor fresh air amount control device Download PDF

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Publication number
CN206600904U
CN206600904U CN201720149490.0U CN201720149490U CN206600904U CN 206600904 U CN206600904 U CN 206600904U CN 201720149490 U CN201720149490 U CN 201720149490U CN 206600904 U CN206600904 U CN 206600904U
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air
controller
fresh air
valve
indoor
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何恒钊
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Guangzhou Design Institute
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Guangzhou Design Institute
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Abstract

The utility model is related to a kind of indoor fresh air amount control device, including air processing machine, indoor carbon dioxide concentration sensor, outdoor gas concentration lwevel sensor and controller, it is characterised in that:There is the air intake of the air processing machine fresh air channel, return air end to have return air channel, and new air-valve is provided with fresh air channel, and air returning valve is provided with return air channel;The signal output part of gas concentration lwevel sensor in one of signal input part of controller junction chamber, the signal output part of the outdoor gas concentration lwevel sensor of two connections of the signal input part of controller, one of signal output part of controller connects the control signal input of new air-valve, the control signal input of two connection air returning valves of the signal output part of controller;Formed according to the input of indoor and outdoor gas concentration lwevel monitoring and controlling fresh air and return air input structure.With fresh air quantity control effect is good, air conditioner load is small and the low feature of energy consumption and beneficial effect.

Description

A kind of indoor fresh air amount control device
Technical field
The utility model is related to a kind of interior and changes wind devices, more particularly to a kind of indoor fresh air amount control device.Belong to HVAC technical field.
Background technology
Wind devices are changed in interior can be supplied to the fresh air of interior, and the health that fresh air is not only related to people is comfortable, also with building Energy consumption is closely related.It is generally believed that the main function of indoor fresh air is indoor carbon dioxide concentration is good for no more than influence human body Health and comfortable higher limit.According to national standard《Indoor Air Quality standards》In GB/T18883-2002 requirements, room air Carbon dioxide hygiene value≤0.10% (2000mg/m3)。
At present, for the room using all-air air conditioning system, conventional indoor fresh air amount control method is:At room When air conditioning condition under air-conditioning season, setting the maximum and minimum value of fresh air proportion, (minimum value typically takes the 20%- of maximum 50%) and indoor carbon dioxide control range, according to the content of indoor carbon dioxide, adjust the aperture of new air-valve, realize Control to resh air requirement.Such control mode has two:(1) the gas concentration lwevel monitoring of outdoor fresh air is lacked, It is difficult to ensure that New atmosphere quality;The energy-conservation of ventilating system, the control effect of indoor carbon dioxide concentration are poor;(2) minimum fresh air requirmente Excessive, for most of buildings, the excursion of actual fresh air proportion can be bigger, so that according to the concentration of indoor carbon dioxide The energy-saving effect of regulation is more preferable.
Therefore, the utility model designs a kind of indoor fresh air amount control device, using gas concentration lwevel sensor, simultaneously The real time value of the outdoor gas concentration lwevel of monitoring and indoor carbon dioxide concentration, regulation intake and return air amount, indoors two Aoxidize concentration of carbon increase it is few when, the characteristics of reducing resh air requirement, and then reduce the air conditioner load that causes of fresh air and energy consumption.
Utility model content
The purpose of this utility model, is to lack to solve the wind devices of the prior art that change to the titanium dioxide of outdoor fresh air There is provided a kind of indoor fresh air amount control for the problem of concentration of carbon monitoring, ventilation quality are difficult to ensure that and minimum fresh air requirmente is excessive, energy consumption is big Control equipment, with fresh air quantity control effect is good, air conditioner load is small and the low feature of energy consumption and beneficial effect.
The purpose of this utility model can be by taking following technical scheme to realize:
A kind of indoor fresh air amount control device, including air processing machine, indoor carbon dioxide concentration sensor, outdoor dioxy Change concentration of carbon sensor and controller, its design feature is:The air intake of the air processing machine has fresh air channel, return air End has return air channel, and new air-valve is provided with fresh air channel, and air returning valve is provided with return air channel;The signal input of controller The signal output part of gas concentration lwevel sensor in one of end junction chamber, two connection outdoors two of the signal input part of controller The signal output part of carbonoxide concentration sensor, the control signal input of one of the signal output part of controller connection new air-valve End, the control signal input of two connection air returning valves of the signal output part of controller;Formed according to indoor and outdoor dense carbon dioxide Spend the input of monitoring and controlling fresh air and return air input structure.
The purpose of this utility model can also be by taking following technical scheme to realize:
Further, can be provided with return fan section, mixed wind section, air supply section and air inlet fan, the air intake in air processing machine The fresh air inlet of machine extends outward fresh air channel, and return fan section extends outward return air channel, and fresh air is entered by fresh air channel Enter mixed wind section, return air enters mixed wind section by return air channel, and air supply section connects the air outlet of air processing machine;The indoor dioxy Change concentration of carbon sensor to be disposed in the interior at smallpox or wall, outdoor gas concentration lwevel sensor is disposed in the outdoor exterior wall; The controller has arithmetic element, by the indoor carbon dioxide concentration signal of input, outdoor gas concentration lwevel signal with Setting value carries out conversion contrast, carries out and control the wind input quantity of fresh air input quantity.
Further, the three of controller signals output can be connected with fault alarm, and new air-valve has opening amount signal defeated Go out end, air returning valve has return air opening amount signal output end;The fresh air opening amount signal output end connects the feed back input of controller One of end, the two of the feedback input end of the return air opening amount signal output end connection controller, form two tunnel feedback signal inputs Loop;Controller is by the way that the former output valve of feedback signal and arithmetic element is compared, to control the unlatching of fault alarm Or close, form automatic alarm circuit structure.Controller is by ensureing that signal output part sends closing if in error range Otherwise signal sends enabling signal to the guarantee signal of fault alarm and inputs to the guarantee signal input part of fault alarm End.
Further, in air processing machine mixed wind section, can set gradually between air supply section fillter section, surface cooling section plus Hot arc and humidifier section.
Further, the controller can have some rotation speed of fan feedback signal input terminals, and some blower fans turn The connection corresponding with the speed feedback signal output end of each blower fan of air processing machine of fast feedback signal input terminal, speed feedback letter Number send and to be compared to arithmetic element and with the former output valve of arithmetic element, to control being turned on and off for fault alarm, Form automatic alarm circuit structure.Controller is by ensureing that signal output part sends shutdown signal to event if in error range Hinder the guarantee signal input part of alarm, otherwise send enabling signal to the guarantee signal input part of fault alarm.
Further, the controller can have blower fan start stop switch and manual auto state switching switch.
Further, the aperture regulation of the new air-valve may range from 0-100%, and the aperture regulation scope of air returning valve can Think 0-100%.
The utility model has beneficial effect prominent as follows:
1st, the utility model there is fresh air channel, return air end to have return air channel due to the air intake of air processing machine, New air-valve is provided with fresh air channel, air returning valve is provided with return air channel;Two in one of signal input part of controller junction chamber The signal output part of carbonoxide concentration sensor, the outdoor gas concentration lwevel sensor of two connections of the signal input part of controller Signal output part, the control signal input of one of the signal output part of controller connection new air-valve, the signal of controller is defeated Go out the control signal input of the two connection air returning valves at end;Formed defeated according to indoor and outdoor gas concentration lwevel monitoring and controlling fresh air Enter and return air input structure;Therefore, it is possible to solve the gas concentration lwevel of the prior art for changing wind devices shortage to outdoor fresh air Monitoring, ventilation quality be difficult to ensure that and the problem of minimum fresh air requirmente is excessive, energy consumption is big, with fresh air quantity control effect is good, air-conditioning Load is small and the low feature of energy consumption and beneficial effect.
2nd, the utility model respectively indoors, outdoor setting carbon dioxide sensor make the signal of sensor by wire or Person is wirelessly transmitted to controller, controller according to the signal of sensor outputed signal to again after arithmetic element processing new air-valve and Air returning valve, so that intelligent control new air-valve and the aperture of air returning valve, reach effective control to fresh air intake and return air intake System, the aperture of new air-valve is 0 to 100%, fresh air intake is adjusted space increase, is not influenceed by minimum value, energy-saving and emission-reduction.
3rd, the fresh air that the utility model is related to is by fresh flue, and return air passes through air -return duct, both quilts in air processing machine After mixed merging treatment, the room of air processing machine service is re-fed into.Wind can be entered by each functional section of air processing machine Row mixing, filtering, refrigeration, heating, humidification, meet the requirement of user.Controller has arithmetic element, can be to indoor titanium dioxide Concentration of carbon sensor, the signal of outdoor gas concentration lwevel sensor carry out computing, and contrasted with value set in advance, from And new air-valve and air returning valve are sent control signals to, the effect with energy-saving and emission-reduction, the saving energy.
4th, controller of the present utility model has multiple signal input output ends, by the feedback for receiving each rotation speed of fan Signal, the opening amount signal feedback of new air-valve, return air opening amount signal feedback is capable of the working order of monitoring instrument in time, when beyond mistake During poor scope, alarm signal can be sent to fault alarm, the effect of real-time guard complete machine is reached.
Brief description of the drawings
Fig. 1 is the structured flowchart of the utility model specific embodiment;
Fig. 2 is each functional section block diagram of air processing machine of the utility model specific embodiment;
Fig. 3 is the control principle block diagram of the utility model specific embodiment;
Control principle block diagram when Fig. 4 is gas concentration lwevel control in regular air chamber of handler.
Wherein:1- air processing machines, 2- fresh air channels, 3- return air valve passages, 4- indoor carbon dioxide concentration sensors, 5- Outdoor gas concentration lwevel sensor, 6- controllers, 7- fault alarms.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing 1 and 4 and embodiment:
Specific embodiment 1
Referring to figs. 1 to Fig. 4, the present embodiment includes air processing machine 1, indoor carbon dioxide concentration sensor 4, outdoor dioxy Change concentration of carbon sensor 5 and controller 6, there is the air intake of the air processing machine 1 fresh air channel 2, return air end to have return air Passage 3, is provided with new air-valve in fresh air channel 2, and air returning valve is provided with return air channel 3;One of signal input part of controller 6 The signal output part of gas concentration lwevel sensor 4 in junction chamber, the outdoor titanium dioxide of two connections of the signal input part of controller 6 The signal output part of concentration of carbon sensor 5, the control signal input of one of the signal output part of controller 6 connection new air-valve, The control signal input of two connection air returning valves of the signal output part of controller 6;Formed according to indoor and outdoor gas concentration lwevel Monitoring and controlling fresh air is inputted and return air input structure.
In the present embodiment:
Can be provided with return fan section, mixed wind section, air supply section and air inlet fan, the fresh air of the air inlet fan in air processing machine 1 Entrance extends outward fresh air channel 2, and return fan section extends outward return air channel 3, and fresh air enters mixed wind by fresh air channel 2 Section, return air enters mixed wind section by return air channel 3, and air supply section connects the air outlet of air processing machine 1;The indoor carbon dioxide Concentration sensor 4 is disposed in the interior at smallpox or wall, and outdoor gas concentration lwevel sensor 5 is disposed in the outdoor exterior wall;Institute Controller 6 is stated with arithmetic element, by the indoor carbon dioxide concentration signal of input, outdoor gas concentration lwevel signal with setting Definite value carries out conversion contrast, carries out and control the wind input quantity of fresh air input quantity.
The three of the signal output of controller 6 can be connected with fault alarm 7, and new air-valve has opening amount signal output end, return Air-valve has return air opening amount signal output end;One of feedback input end of the fresh air opening amount signal output end connection controller 6, The two of the feedback input end of the return air opening amount signal output end connection controller 6, form two tunnel feedback signal input circuits;Control Device 6 processed is by the way that the former output valve of feedback signal and arithmetic element is compared, to control unlatching or the pass of fault alarm 7 Close, form automatic alarm circuit structure.Controller 6 is by ensureing that signal output part sends shutdown signal if in error range To the guarantee signal input part of fault alarm 7, enabling signal is otherwise sent to the guarantee signal input part of fault alarm 7.
Fillter section, surface cooling section, bringing-up section can be set gradually between mixed wind section, air supply section in air processing machine 1 and are added Wet section.
The controller 6 can have some rotation speed of fan feedback signal input terminals, some rotation speed of fan feedback letters Number input connection corresponding with the speed feedback signal output end of each blower fan of air processing machine 1, speed feedback signal is sent It is compared, to control being turned on and off for fault alarm 7, is formed certainly to arithmetic element and with the former output valve of arithmetic element Dynamic warning circuit structure.Controller 6 is by ensureing that signal output part sends shutdown signal to failure report if in error range The guarantee signal input part of alert device 7, otherwise sends enabling signal to the guarantee signal input part of fault alarm 7.
The controller 6 can have blower fan start stop switch and manual auto state switching switch.The new air-valve is opened It can be 0-100% to spend adjustable range, and the aperture regulation of air returning valve may range from 0-100%.
New air-valve, air returning valve can use the air-valve of routine techniques;Controller 6 can have built-in fortune using routine techniques Calculate the unit chip of element circuit structure;Indoor carbon dioxide concentration sensor 4, outdoor gas concentration lwevel sensor 5 can be with Using the gas concentration lwevel sensor of routine techniques.
The principle of the present embodiment is as follows:
The present embodiment is applied to all-air air conditioning system.This kind of equipment, mainly includes air processing machine 1, fresh air valve passage 2nd, return air valve passage 3, indoor carbon dioxide concentration sensor 4, outdoor gas concentration lwevel sensor 5 and controller 6.Wherein, Air processing machine 1 can include return fan section, mixed wind section, fillter section, surface cooling section, bringing-up section, humidifier section, pressure fan as needed Section it is all or part of.Fresh air channel 2, return air channel 3 are respectively connected to air processing machine, and fresh air passes through fresh air channel 2, return air By return air channel 3, both send into air processing machine 1 after the mixing section processing of air processing machine 1, by air supply section and serviced Room.
New air-valve is set in fresh air channel 2, and the new air-valve is electric control valve, can be according to the telecommunications from controller 6 Number adjusting air valve aperture, the aperture regulation scope of new air-valve is 0-100%.Air returning valve is set on return air channel 3, and air returning valve is electricity Dynamic regulating valve, can adjust return air valve opening according to the electric signal from controller 6.The aperture regulation scope of air returning valve is 0- 100%.Position indoors, outdoor sets carbon dioxide sensor, i.e. indoor carbon dioxide concentration sensor 4 and outdoor respectively Gas concentration lwevel sensor 5.The signal of sensor is by wire or is wirelessly transmitted to controller 6.Controller 6 is according to interior Gas concentration lwevel sensor 4 and the signal of the outdoor transmission of gas concentration lwevel sensor 5, enter in arithmetic element with setting value Row contrast is handled, and is finally sent control signal to new air-valve and air returning valve, is controlled new air-valve and air returning valve.
Controller 6 also has multiple input I and output end O port.Wherein, analog input end AI can include return air Temperature, the open degree feedback of two water-through valves, feedback of rotation speed of fan etc.;In the present embodiment, with the input of rotation speed of fan feedback signal End, but also various kinds of sensors can be increased as needed, return air temperature sensor for example is set in air -return duct, return air temperature is passed Sensor outputs signal to controller 6.The open degree feedback signal output part of two water-through valves, output two can also be increased in humidifier section The opening amount signal of water-through valve is to controller 6.The arithmetic element of controller 6 contrasts the signal inputted according to setting value, Such as exceed error amount, then send alarm signal to fault alarm 7.The analog output end AO of controller 6 can also include two Aperture control, the control of rotation speed of fan, fresh air valve opening, return air valve opening of water-through valve etc., the present embodiment includes new air-valve Aperture, return air valve opening.Digital quantity input DI, which includes blower fan start and stop state, manual auto state, to be changed;Digital output end DO includes blower fan start-up and shut-down control.
When using:When room is in the air conditioning condition under air-conditioning season, according to the gas concentration lwevel limit value of setting, interior The measured value of gas concentration lwevel sensor 4 and the outdoor measured value of gas concentration lwevel sensor 5, fresh air is exported by controller 6 The control signal of valve, air returning valve, operates the motion of new air-valve and air returning valve, controls the gas concentration lwevel of room air Value.
It is described above, only the utility model preferably specific embodiment, but protection domain of the present utility model not office Be limited to this, it is any to be familiar with this technology personnel in the range of the utility model exposure, according to technical solutions of the utility model and its Utility model design is subject to equivalent substitution or change, belongs to this and uses new protection domain.

Claims (7)

1. a kind of indoor fresh air amount control device, including air processing machine (1), indoor carbon dioxide concentration sensor (4), outdoor Gas concentration lwevel sensor (5) and controller (6), it is characterised in that:The air intake of the air processing machine (1) has fresh air Passage (2), return air end have return air channel (3), and new air-valve is provided with fresh air channel (2), are provided with back in return air channel (3) Air-valve;The signal output part of gas concentration lwevel sensor (4) in one of the signal input part of controller (6) junction chamber, control The signal output part of the outdoor gas concentration lwevel sensor (5) of two connections of the signal input part of device (6), the letter of controller (6) The control signal input of one of number output end connection new air-valve, two connection air returning valves of the signal output part of controller (6) Control signal input;Formed according to the input of indoor and outdoor gas concentration lwevel monitoring and controlling fresh air and return air input structure.
2. a kind of indoor fresh air amount control device according to claim 1, it is characterised in that:Set in air processing machine (1) There are return fan section, mixed wind section, air supply section and air inlet fan, the fresh air inlet of the air inlet fan extends outward fresh air channel (2), returned Fan section extends outward return air channel (3), and fresh air enters mixed wind section by fresh air channel (2), and return air passes through return air channel (3) Into mixed wind section, the air outlet of air supply section connection air processing machine (1);The indoor carbon dioxide concentration sensor (4) is set Indoors at smallpox or wall, outdoor gas concentration lwevel sensor (5) is disposed in the outdoor exterior wall;Controller (6) tool There is arithmetic element, the indoor carbon dioxide concentration signal of input, outdoor gas concentration lwevel signal and setting value are changed Contrast is calculated, the wind input quantity of fresh air input quantity is carried out and control.
3. a kind of indoor fresh air amount control device according to claim 1 or 2, it is characterised in that:Controller (6) signal is defeated Three gone out are connected with fault alarm (7), and new air-valve has opening amount signal output end, and air returning valve has the output of return air opening amount signal End;One of feedback input end of the fresh air opening amount signal output end connection controller (6), the return air opening amount signal output end The two of the feedback input end of controller (6) are connected, two tunnel feedback signal input circuits are formed;Controller (6) is by by feedback letter Number it is compared with the former output valve of arithmetic element, to control being turned on and off for fault alarm (7), forms automatic alarm electricity Line structure.
4. a kind of indoor fresh air amount control device according to claim 3, it is characterised in that:In air processing machine (1) Fillter section, surface cooling section, bringing-up section and humidifier section are set gradually between mixed wind section, air supply section.
5. a kind of indoor fresh air amount control device according to claim 4, it is characterised in that:The controller (6) has Some rotation speed of fan feedback signal input terminals, some rotation speed of fan feedback signal input terminals are each with air processing machine (1) Individual blower fan speed feedback signal output end correspondence connect, speed feedback signal send to arithmetic element and with the original of arithmetic element Output valve is compared, and to control being turned on and off for fault alarm (7), forms automatic alarm circuit structure.
6. a kind of indoor fresh air amount control device according to claim 5, it is characterised in that:The controller (6) has Blower fan start stop switch and manual auto state switching switch.
7. a kind of indoor fresh air amount control device according to claim 3, it is characterised in that:The aperture of the new air-valve is adjusted Adjusting range is 0-100%, and the aperture regulation scope of air returning valve is 0-100%.
CN201720149490.0U 2017-02-20 2017-02-20 A kind of indoor fresh air amount control device Active CN206600904U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112781201A (en) * 2021-02-10 2021-05-11 珠海格力电器股份有限公司 Control system of air conditioner
CN113531726A (en) * 2021-07-06 2021-10-22 福氏环保科技发展(北京)有限公司 Air purification system and control method for purifying air in rail transit environment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112781201A (en) * 2021-02-10 2021-05-11 珠海格力电器股份有限公司 Control system of air conditioner
CN113531726A (en) * 2021-07-06 2021-10-22 福氏环保科技发展(北京)有限公司 Air purification system and control method for purifying air in rail transit environment

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