CN104930895B - A kind of regenerative heat exchanger and there is the VMC (Ventilation Mechanical Control System) automatically controlling electrostatic precipitation - Google Patents
A kind of regenerative heat exchanger and there is the VMC (Ventilation Mechanical Control System) automatically controlling electrostatic precipitation Download PDFInfo
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- CN104930895B CN104930895B CN201510268003.8A CN201510268003A CN104930895B CN 104930895 B CN104930895 B CN 104930895B CN 201510268003 A CN201510268003 A CN 201510268003A CN 104930895 B CN104930895 B CN 104930895B
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Abstract
A kind of regenerative heat exchanger, described heat exchanger includes housing, heat storage medium, fluid passage, described heat storage medium is positioned at housing, described fluid passage is positioned at heat storage medium, described fluid passage has fluid intake and outlet, and the heat storage capacity of described regenerative heat exchanger gradually rises along with the flow direction of fluid.The heat storage medium that the present invention makes overall heat absorption on fluid flow direction is uniform, it is to avoid produce the situation that heat absorption is uneven.
Description
Technical field
The invention belongs to field of heat exchangers, particularly relate to a kind of regenerative heat exchanger.
Background technology
Along with the development rapidly of China's several years in the past, energy resource consumption is increasing, along with the waste of the energy gets more and more, is therefore badly in need of designing a kind of regenerative heat exchanger carrying out energy recovery.And the heat-storing material of the thermophore of prior art all has identical heat storage capacity, thus cause thermophore accumulation of heat on the whole uneven, temperature near the position that accumulation of heat is too much, such as high temperature fluid entry position can be caused too high, and convection cell pipeline and thermophore all can reduce the life-span of local.
Additionally, China's atmospheric pollution is increasingly severe, the bad air phenomenon such as sandstorm, haze is increasingly severe, and the urbanite of 3/4 absorbs the air less than cleaning.Simultaneously modern 80～90% time spend in indoor, the seal of modern building increases, various decorating and renovating materials, furniture and household chemicals etc. enter indoor in a large number, make indoor pollutant benzene homologues, volatile organic matter (VOC), the source of PM2.5 and kind increase.These harmful gass retain, accumulate, and cause IAQ (indoor air quality) to deteriorate, and more increased the weight of one layer, person health is caused serious impact on the basis of outdoor air pollution.Cause leukemia, pulmonary carcinoma, nervous system, respiratory system and immune system, the generation of the diseases such as fetal congenital defect.
Ventilation is the key improving IAQ (indoor air quality), dilutes indoor air pollutants with outdoor fresh air, makes concentration reduce.If but outdoor air severe contamination (as high in sandstorm or pellet or other pollutant levels) will avoid ventilation of directly windowing.The Per capita area of house is the biggest at present, the rate of ventilation of design generally regulation 0.3 time/hour is as fresh-air ventilation standard in winter, indoor fresh air be continuously replenished the increase that can bring air conditioning energy consumption undoubtedly, calculate according to relevant department, house total energy consumption has accounted for the 37% of whole nation energy consumption at present, and in building energy consumption, for air-conditioning, heating energy consumption in accounted for the 35% ~ 50% of building energy consumption, along with frequently occurring and persistent period growth of Summer and winter extreme climate, air-conditioner power consumption energy will constantly rise.
The novel high-efficiency and energy-saving VMC (Ventilation Mechanical Control System) of invention, the new built-in multi-layer filtrating equipment of blower fan, can effectively filter formaldehyde, VOC, PM2.5 dusty gas reaches more than 99.9%, total-heat exchanger, energy-storage modules etc. carry out the recycling of waste heat, after phase-change material homoiothermic, the sensible heat load that VMC (Ventilation Mechanical Control System) recovery heat exchanger undertakes significantly reduces, phase-change material is as a kind of hot functional material that can absorb or discharge latent heat, when ambient temperature is higher than phase transition temperature, phase-change material undergoes phase transition absorption heat, when ambient temperature is down to below phase transition temperature, phase-change material undergoes phase transition release heat, thus reach regulating and controlling temperature and store the effect of energy, and it is prone to after phase-change material phase transformation recover in time.After setting up VMC (Ventilation Mechanical Control System) phase-changing and temperature-regulating subsystem, result of study shows, for relatively common VMC (Ventilation Mechanical Control System), the novel fresh air system of this patent introduction has a clear superiority in terms of energy-saving effect and comfort level, and the sustainable development to the energy is significant.
Summary of the invention
The invention provides a kind of novel regenerative heat exchanger and energy-efficient VMC (Ventilation Mechanical Control System) thereof, this system provides high-quality pure air on the basis of saving the energy to greatest extent.
For achieving the above object, the technical scheme is that
A kind of regenerative heat exchanger, described heat exchanger includes housing, heat storage medium, fluid passage, described heat storage medium is positioned at housing, described fluid passage is positioned at heat storage medium, described fluid passage has fluid intake and outlet, and the heat storage capacity of described regenerative heat exchanger gradually rises along with the flow direction of fluid.
A kind of supply air system, described supply air system includes detection module, control module and defecator, described defecator includes electrostatic precipitator, described supply air system also includes detection module, detection module is for detecting the particle concentration of new wind, the particle concentration of detection is beyond arranging threshold value, and detection module sends a signal to control module, now opens the electrostatic precipitator in defecator.
As preferably, detection module receives and judges the fine particle concentration making new advances in wind less than arranging threshold value, and it sends a signal to control module, closes the electrostatic precipitator in defecator.
As preferably, control module automatically adjusts the size of electric current in electrostatic precipitator according to particle concentration, when particle concentration becomes big, the most automatically increases electric current, when particle concentration diminishes when, the most automatically turns the size of electric current down.
As preferably, one control function is set in the control module, control module automatically adjusts the size of electric current according to control function, described control function I=F (X), wherein I is size of current, and X is particle concentration data, wherein F (X) ' > 0, F''(X) > 0, wherein F (X) ', F''(X) be F(X) first order derivative and second derivative.
As preferably, detection module is arranged in supply air duct and/or detection module 10 is arranged in new wind air channel.
As preferably, described control module is capable of adjusting automatically electric current according to particle concentration, control mode is as follows: the when of assuming electric current I, new wind air channel particle concentration X, represent the filter effect meeting certain condition, above-mentioned electric current I, particle concentration X benchmark data, described benchmark data stores in the control module；
When particle concentration becomes x when, electric current i change is as follows:
I=I*(x/X)a, wherein a is parameter, 1.08 < a < 1.14;
0.8< x/X
<1.2。
As preferably, benchmark data is organized in input more in the control module, in the case of there are two groups or many group benchmark datas, it is provided that the interface of the benchmark data that user selects.
As preferably, system automatically selects (1-x/X)2Minimum one of value.
As preferably, described control module can be connected by wireless communication technology with user, and user utilizes mobile phone app remotely to operate VMC (Ventilation Mechanical Control System)
Relative to prior art, the invention have the advantages that or advantage:
1. providing a kind of new regenerative heat exchanger, the heat storage medium made overall heat absorption on fluid flow direction is uniform, it is to avoid produce the situation that heat absorption is uneven.
2. the supply air system of the present invention is relative to prior art, it is to avoid air draft is connected with energy storage module, thus avoids the heat to pass to air draft, it is ensured that heat all passes to air-supply, thus is greatly saved the energy.
3. provide a kind of new heat storage medium, met the accumulation of heat demand of VMC (Ventilation Mechanical Control System) by heat storage medium.
4. the present invention is by being coated with energy-accumulation material on the inwall or outer wall of supply air duct, can reduce the volume of energy storage module further, and the most not increase any equipment, reaches the overall clean and tidy of equipment, saves the device space.
5. realize adjusting automatically according to particle concentration size of current by control module, thus reach to save the energy.
6. provide a kind of VMC (Ventilation Mechanical Control System), take full advantage of phase-change material and inhale amplification quantity latent heat and the ability being recycled for a long time, by the temperature regulation characteristic of phase-change material in heat exchanger, phase-change accumulation energy module and air supply duct, new wind and return air is made to carry out abundant heat exchange, ensure retaining of indoor heat to greatest extent, avoid unnecessary additional energy source consumption, make new air temperature more comfortable；This system heat exchange efficiency is high, pollution-free, energy-conserving and environment-protective.
7. the VMC (Ventilation Mechanical Control System) that the present invention relates to, owing to new wind is purified by fourfold filter in filtering module and the optimization of distance between filter, available high-quality clean fresh air, the fine particle purification efficiency of right >=2.5 μm is by >=99.9%, improve the filter efficiency of VMC (Ventilation Mechanical Control System), and extend the service life of high efficiency particulate air filter greatly.This VMC (Ventilation Mechanical Control System) has significant practicality and generalization in green building and green energy conservation industry.
8. the present invention synchronizes to exchange by supply air duct and return airway so that new wind can blow to the different position of indoor, so that room air is formed without dead angle systemic circulation, thoroughly improves IAQ (indoor air quality).
Accompanying drawing explanation
Fig. 1 is the regenerative heat exchanger structural representation of the present invention；
Fig. 2 is the ventilation system setups schematic diagram of the present invention；
Fig. 3 is that the ventilation system setups of the present invention improves schematic diagram.
In figure: 1, new wind air channel, 2, return airway, 3, supply air duct, 4, wind output channel, 5, filtering module, 6, heat exchanger, 7, phase-change accumulation energy module, 8, blower fan, 9, control module, 10, detection module, 11, roughing efficiency air filter, 12, precipitator, 13, active carbon filter, 14, high efficiency particulate air filter；15 is heat storage medium, and 16 is thermophore housing, and 17 is fluid intake, 18 fluid issuings, 19, three-way valve；20, three-way valve, 21 passages, 22 passages.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the invention will be further described.
Fig. 1 illustrates a kind of regenerative heat exchanger, described heat exchanger includes housing 16, heat storage medium 15, fluid passage, described heat storage medium 15 is positioned at housing 16, described fluid passage is positioned at heat storage medium 15, described fluid passage has fluid intake 17 and outlet 18, wherein along the flow direction of fluid, the heat storage capacity of described heat storage medium 15 gradually rises, the heat storage capacity of the most described regenerative heat exchanger is S, heat storage capacity S is set to the function of distance fluid intake x, i.e. S=f(x), in regenerative heat exchanger, f'(x) > 0, wherein f'(x) be f(x) first order derivative.
If fluid is high temperature fluid, because the flowing along with fluid, the temperature of fluid can be gradually reduced, the most therefore its emission capacity is gradually lowered, and be stepped up by the heat storage capacity of heat storage medium, the heat storage medium made overall accumulation of heat on fluid flow direction is uniform, it is to avoid produce the situation that accumulation of heat is uneven, thus the part affecting the internal uneven accumulation of heat caused of accumulation of heat of regenerative heat exchanger too much is easily damaged.In like manner, if fluid is cryogen, flowing along with fluid, the temperature of fluid can gradually rise, the most therefore its heat absorption capacity is gradually lowered, and be stepped up by the heat storage capacity of heat storage medium, the heat storage medium made overall heat absorption on fluid flow direction is uniform, it is to avoid produce the situation that heat absorption is uneven.
Certainly, as preferably, along the direction of fluid flowing, the amplitude that the heat storage capacity of heat storage medium raises is gradually lowered, i.e. f''(x) and < 0, wherein f''(x) be f(x) second derivative.Because along the flowing of fluid, high temperature fluid temperature can be more and more lower, by being arranged such, it is to avoid fluid temperature (F.T.) declines too fast, thus affects the uniformity of accumulation of heat.Being experimentally confirmed, in this, set-up mode makes the accumulation of heat of thermophore more uniform.
It is continually varying that above-mentioned function is not offered as the heat storage capacity of heat-storing material, actually the heat storage capacity of heat-storing material be can be discrete change.Such as, the heat-storing material that described thermophore includes includes polylith, and such as, the left and right directions along Fig. 1 arranges polylith, and the heat storage capacity that arbitrary neighborhood is two pieces is different, and along the flow direction of fluid, the heat storage capacity of adjacent two pieces gradually rises.Further preferably, the amplitude of rising is gradually lowered.This kind of situation is also included within above-mentioned function f(x) in.
As preferably, fin is set outside fluid passage, with augmentation of heat transfer.As preferably, along with the flow direction of fluid, the height of fin is gradually increased.Because along with fluid flows, fluid temperature (F.T.) constantly reduces, by the increase of fin height so that on the path of fluid flowing, the quantity of the heat radiation of unit length is essentially identical, thus reaches uniform accumulation of heat.
As preferably, along with the flow direction of fluid, the amplitude that fin increases is increasing.It is found through experiments, by so arranging so that overall accumulation of heat is more uniform.
Fig. 2 illustrates a kind of supply air system arranging energy storage module, the new wind air channel 1 that including housing and is installed on housing, return airway 2, supply air duct 3, wind output channel 4, arranges heat exchanger 6, energy-storage module 7 in described housing；Described return airway 2, heat exchanger 6 connect；Described new wind air channel 1 is connected with outdoor with wind output channel 4；Described return airway 2 is connected with indoor with supply air duct 3；Described new wind air channel 1, heat exchanger 6, energy-storage module 7, supply air duct 3 connect successively.
Above-mentioned supply air system is relative to the setting that an improvement of prior art is exactly energy storage module 7.In the prior art, typically directly arranging a heat exchanger, described heat exchanger connects new wind air channel and wind output channel, thus realizes the heat exchange of new wind and air draft.Sometimes, described heat exchanger is regenerative heat exchanger.The present invention is improved by energy storage module 7 relative to one of prior art and is arranged between heat exchanger 6 and supply air duct 3.By such setting, stream between new wind air channel and air-supply passage is connected with energy storage module 7, and the stream between return airway 2 and wind output channel 4 is not connected with accumulation of heat module, and accumulation of heat module is arranged on the downstream (i.e. air-supply firstly flows through heat exchanger, again passes through accumulation of heat module) of heat exchanger.By so arranging so that after air-supply is that air draft carries out heat exchange, then enters back into energy storage module and carry out accumulation of heat.And in prior art, air draft is all connected with regenerative heat exchanger with air-supply so that drop at temperature, such as the when that indoor and outdoors temperature all declining, the heat of now regenerative heat exchanger storage can heat air draft and air-supply, so that take away a part of heat because of air draft simultaneously.The supply air system of the present invention is relative to prior art, it is to avoid air draft is connected with energy storage module, thus avoids the heat to pass to air draft, it is ensured that heat all passes to air-supply, thus is greatly saved the energy.
When daytime, indoor/outdoor temperature-difference was less, new wind and air draft are simultaneously through over-heat-exchanger 6, it is achieved that the air draft temperature-compensating to new wind, and are stored by the phase-changing and temperature-regulating material in energy-storage module 7 by unnecessary heat；When night, indoor/outdoor temperature-difference was bigger, new wind and air draft realize air draft through over-heat-exchanger 6 and compensate the portion temperature of new wind, meanwhile, the heat being stored in daytime in energy-storage module 7 discharges through phase-changing and temperature-regulating material, reduce further and enter indoor new wind and the indoor temperature difference, thus avoid breaking the balance of indoor temperature as far as possible when changing wind, reduce the additional compensation of indoor temperature.
As preferably, energy storage module arranges phase change heat storage material.
As preferably, also include that defecator, described defecator are arranged between new wind air channel 1 and heat exchanger 6.
As preferably, described filtering module 5 is disposed with roughing efficiency air filter 11, precipitator 12, active carbon filter 13 and high efficiency particulate air filter 14.
Experiment finds, distance between roughing efficiency air filter 11, precipitator 12, active carbon filter 13 and high efficiency particulate air filter 14 can not be too small, if too small, cause air intake resistance excessive, noise is excessive, simultaneously can not be excessive, excessive if VMC (Ventilation Mechanical Control System) volume can be caused excessive, therefore, the optimal position relationship between each filter is found by great many of experiments:
Distance between roughing efficiency air filter 11 and precipitator 12 is D1, distance between precipitator 12 and active carbon filter 13 is D2, distance between active carbon filter 13 and high efficiency particulate air filter 14 is D3, meets following relation: D1 > D2 > D3 between D1, D2, D3;
Further preferably, D1-D2 < D2-D3;
Further preferably, D3:D2:D1=1:(1.15-1.3): (1.20-1.4)；
Being preferable to provide by above-mentioned, filter blast is relatively small, and noise is lower and filter effect more preferable, and volume is the most moderate.
As preferably, the distance between every two kinds of roughing efficiency air filter 11, precipitator 12, active carbon filter 13 and high efficiency particulate air filter 14 is 1cm-10cm；Distance between the most every two kinds is 2cm-5cm.
D1, D2, D3 refer to the distance in the adjacent face of two parts, and such as D1 refers to the distance in roughing efficiency air filter 11 and adjacent between precipitator 12 face.
As preferably, described primary efficient filter screen is one or more in non-woven fabrics, nylon wire, fluffy Chopped Strand Mat, plastic wire or metal gauze.As preferably, primary efficient filter screen is the composite construction at least including two-layer, and in the composite construction of adjacent two layers, the direction of the framing structure fiber alignment of drainage screen is orthogonal, is arranged by this kind, so that filter effect is up to medium air filtration.
As preferably, precipitator 12 is Double-region electrostatic dust collect plant, and first region endoparticle obtains electric charge; in Two Areas; collecting plate is disposed in second area, it is thus achieved that the granule of electric charge is trapped by collecting plate, and uses positive corona discharge to reduce ozone generation amount.
As preferably, collecting plate arranges multiple dust sheet, constitutes air flow channel between collecting plate, and the spacing of collecting plate uses 3.5-7mm, preferably 3.5-5mm.
As preferably, described active carbon filter includes the catalyst MnO that ozone can carry out catalytic decomposition2/CuO、CuO/Ni、MnO2/Pt、Fe3O4/CuO、Ag/Fe2O3、Ni/SiO2In one or more.
Preferably MnO2With CuO with activated carbon for carrier compound use by a certain percentage, wherein MnO2Consumption accounts for the consumption of 50%-80%, CuO and accounts for 20%-60%, preferred MnO2Consumption accounts for the consumption of 60%-70%, CuO and accounts for 30%-40%.In transition metal oxide, MnO2Catalysis activity more excellent, the CuO of addition serves synergism and compared with noble metal catalyst, and cost is lower.
As preferably, catalyst is attached on active carbon filter drainage screen through-hole structure together with activated carbon, and through-hole structure is the one in aluminum honeycomb, plastic honeycomb or paper honeycomb.The material of activated carbon is one or more in wood activated charcoal, active fruit shell carbon, coal mass active carbon, petroleum-type activated carbon, regenerated carbon mineral raw material activated carbon, it is preferred to employ the shell class activated carbon that activation method prepares.
As preferably, described high efficiency particulate air material is one or more in PP filter paper, glass fiber paper, PET filter paper.
As preferably, described supply air system also includes that control module 9, described control module 9 are attached with precipitator 12, to be controlled precipitator 12.Such as include the size etc. of opening and closing, electricity.
As preferably, described supply air system also includes detection module 10, and detection module 10 is for detecting the particle concentration of new wind, fine particle data are beyond arranging threshold value, it sends a signal to control module 9, now opens the electrostatic precipitator 12 in filtering module 5, increases the filtering times of new wind.When running into the preferable weather of air quality, detection module 10 receives and judges the fine particle data making new advances in wind less than arranging threshold value, and it sends a signal to control module 9, closes the electrostatic precipitator 12 in filtering module 5, reduces the consumption of electricity.
As preferably, control module 9 according to automatically adjusting the size of electric current in electrostatic precipitator 12 according to particulate count, such as when particulate count is according to becoming big, the most automatically increases electric current, when particulate count is according to the when of diminishing, the most automatically turns the size of electric current down.
Can arrange a control function in control module 9, control module automatically adjusts the size of electric current according to control function.Described control function I=F (X), wherein I is size of current, and X is particle concentration data, wherein F (X) ' > 0, F''(X) > 0, wherein F (X) ', F''(X) be F(X) first order derivative and second derivative.Above-mentioned formula shows, along with the increase of particle concentration, electric current is increasing, and the amplitude increased is the most increasing.The relation of above-mentioned formula is obtained by great many of experiments, because along with concentration increases, the electric current of needs is increasing, but electric current is not that proportional example increases with the increase of particle concentration, and the amplitude that is to increase is increasing, only in this way, just can better meet the needs of room air.
As preferably, detection module 10 is arranged in supply air duct 3, so can directly test the particle concentration in the air entering room.
As preferably, detection module 10 is arranged in new wind air channel 1.
Described control module 9 is capable of adjusting automatically electric current according to particle concentration.Control mode is as follows: the when of assuming electric current I, new wind air channel particle concentration X, represents the filter effect meeting certain condition.Above-mentioned electric current I, particle concentration X benchmark data.Described benchmark data is stored in control module 9.
When particle concentration becomes x when, electric current i change is as follows:
I=I*(x/X)a, wherein a is parameter, 1.08 < a < 1.14；Preferably, a=1.11;
0.8< x/X
<1.2。
By above-mentioned formula, it is possible to achieve according to the function of particle concentration Intelligent purifying air, saved electric energy.
As preferably, can input in control module 9 and organize benchmark data more.In the case of two groups or many group benchmark datas occur, it is provided that the interface of the benchmark data that user selects, it is preferred that system can automatically select (1-x/X)2Minimum one of value.
As preferably, described energy storage module is described regenerative heat exchanger noted earlier, for example, see Fig. 1.
As preferably, described energy storage module arranges phase-change heat accumulation medium, the mass component of described heat storage medium includes the following: by heat storage medium paraffin 50-70 part of 18-23 carbon atom, high density polyethylene filler 10-20 part, melamine phosphate fire retardant 10-30 part, expanded graphite heat-conducting medium 5-15 part.
The paraffin of 18-23 carbon atom, latent heat of phase change is about 160-270KJ/Kg；Liquid paraffin is bound in the space net structure that high density polyethylene (HDPE) solidifies formation in advance, forms qualitative phase change paraffin, solves the problem that paraffin is easily revealed in engineering；Graphite has good adsorptivity and bound to paraffin, has the good compatibility with paraffin, and has excellent heat conductivility, solve the problem that paraffin heat conductivity is low, makes the latent heat of phase change of the qualitative phase change composite material of paraffin may be up to the 80% of paraffin refined wax latent heat.
As preferably, heat storage medium is set to polylith, and on the flow direction of new wind, in different masses, the number of paraffin is gradually increased, and the amplitude wherein increased is gradually lowered.Increased and increase the setting of ratio by the mark of paraffin, the heat storage capacity that can meet in energy storage heat exchanger gradually rises, and the amplitude raised is gradually lowered.
As preferably, described supply air duct 3 outer wall cladding insulation material, insulation material is polyurathamc, expanded polypropylene, ceramic fiber blanket or aerogel blanket.
As preferably, insulation material, a kind of thickness 5～20mm heat-insulation layer, this heat-insulation layer is to use the pentane foaming agent of 3 weight %, 60-80 weight % polypropylene, 5-15 weight % decabrominated dipheny ether flame retardant, 2-10 weight % polrvinyl chloride foaming stabilizer compositions to make.The apparent thermal conductivity of above-mentioned insulation material is between 0.005～0.030W/m k.
As another embodiment, supply air duct 3 inwall or outer wall cladding energy-accumulation material.By arranging energy-accumulation material at inwall or outer wall, the effect replacing auxiliary energy-storage module can be played.It is of course possible to serve the function of auxiliary energy-storage module accumulation of heat, thus reach power saving function.Prior art is all be separately provided energy storage heat exchanger, and the present invention is by being coated with energy-accumulation material on the inwall or outer wall of supply air duct 2, the volume of energy storage module can be reduced further, and the most do not increase any equipment, reach the overall clean and tidy of equipment, save the device space.
As preferably, heat-storing material is arranged on inwall.As preferably, heat-storing material is the projective structure from inwall.By arranging projective structure, so that enhanced heat transfer.
As preferably, by arranging projective structure so that air flowing in supply air duct is helical flow.Pass through helical flow, it is to avoid partial short-circuit in flowing, it is ensured that air is fully and energy-accumulation material contact heat-exchanging.
As preferably, the height of projective structure is more and more lower along the flow direction of air.Main purpose is the most constantly to reduce the circulation area of air, thus constantly reduces the flow velocity of air, so that air exports slowly, simultaneously as the temperature of air is more and more lower when of accumulation of heat, heat storage capacity is more and more lower, therefore reduces the volume of energy-accumulation material, it is to avoid the waste of material.
As preferably, the amplitude that projective structure height reduces along air-flow direction is more and more less.Being found through experiments, arranging in such cases can make heat storage efficiency improve 10-20%.
As preferably, energy-accumulation material is phase change heat storage material.
As preferably, metal material is used to be coated with energy-accumulation material.
As preferably, along the flow direction of air, the heat storage capacity of described energy-accumulation material gradually rises.
As preferably, along the direction of fluid flowing, the amplitude that the heat storage capacity of energy-accumulation material raises is gradually lowered.
The concrete reason arranged is identical with arranging of above heat-storing material.
As preferably, along the flow direction of air-supply, the phase transition temperature of phase change heat storage material gradually rises.Being further used as preferably, phase change heat storage material is set to polylith, and along air-supply flow direction, the phase transition temperature of every block of phase-change material gradually rises.
As preferably, described energy-accumulation material is identical with heat storage medium above.
As preferably, heat storage medium is set to polylith, and on the flow direction of air, in different masses, the number of paraffin is gradually increased.
As preferably, on the flow direction of air, the amplitude that wherein number of paraffin increases is gradually lowered.
As preferably, described supply air system also includes that room air detects equipment, and described control module adjusts air output automatically according to the data of air detection equipment Inspection.If the air quality of detection is less than certain threshold value, then automatically turns on supply air system and blow, if the air quality of detection is higher than certain threshold value, then automatically gives and close supply air system.
Control module 9 automatically adjusts the frequency of breeze fan according to IAQ (indoor air quality), thus adjusts air output, and such as air quality is deteriorated, and the most automatically increases blower fan frequency, when air quality improves when, the most automatically turns blower fan frequency down.
As preferably, described control module 9 can be connected by wireless communication technology with user, and user utilizes mobile phone app can know IAQ (indoor air quality) situation, and VMC (Ventilation Mechanical Control System) carries out switching on and shutting down, regulates air quantity, selects the remotely operations such as filtered model.
Described VMC (Ventilation Mechanical Control System) arranges two passes 21,22 between return airway 2 and supply air duct 3, wherein the communicating position (the first communicating position) of passage 21 and supply air duct 3 than passage 22 and supply air duct 3 communicating position (the second communicating position) closer to VMC (Ventilation Mechanical Control System) housing, the position (third connecting position) that wherein passage 21 connects with return airway 2 than passage 22 and return airway 2 communicating position (the 4th communicating position) further from VMC (Ventilation Mechanical Control System) housing.Wherein at return airway 2, supply air duct 3, passage 20, the first valve it is respectively provided with in 21, second valve, 3rd valve and the 4th valve, for opening and closing return airway 2, supply air duct 3, passage 20, 21, described new wind air channel valve arranges between the first communicating position and the second communicating position, return airway valve is arranged between third connecting position and the 4th communicating position, by the opening and closing of valve, so that the batch (-type) of supply air duct 3 and return airway 2 synchronizes to exchange, can synchronize to exchange by the new wind air port of indoor location and return air air port simultaneously, by exchanging, make new wind can blow to the different position of indoor, so that room air is formed without dead angle systemic circulation, thoroughly improve IAQ (indoor air quality).Open the 3rd valve and the 4th valve the most simultaneously, close the first valve and the second valve, then can realize new wind air port and return air air port and synchronize to exchange.
As replacing, the first valve and the 4th valve can use three-way valve 20 to replace, and the second valve and the 3rd valve can use three-way valve 19 to replace.Three-way valve 20 is arranged at the 4th communicating position, and three-way valve 19 is arranged on the first communicating position and goes out.
As preferably, described control module 9 can control the opening and closing of air-valve, to realize the batch (-type) synchronization exchange of supply air duct 3 and return airway 2.
As preferably, in Fig. 3 embodiment, the heat-storing material of supply air duct 3 inwall is arranged between housing and the first communicating position.
As preferably, it is 200～400m that the selection of new wind processes air quantity3/ h, preferably air quantity are 300m3/h。
Further preferably, arranging heat storage medium in described heat exchanger, described heat storage medium is exactly heat storage medium noted earlier.When daytime, indoor/outdoor temperature-difference was less, new wind and air draft are simultaneously through the heat exchanger 6 of overload phase-changing and temperature-regulating material, achieve the air draft temperature-compensating to new wind, and unnecessary heat is stored by the phase-changing and temperature-regulating material in heat exchanger 6, energy-storage module 7 and supply air duct 3；When night, indoor/outdoor temperature-difference was bigger, new wind and air draft realize air draft through over-heat-exchanger 6 and compensate the portion temperature of new wind, meanwhile, the heat being stored in daytime in heat exchanger 6, energy-storage module 7 and supply air duct 3 discharges through phase-changing and temperature-regulating material, reduce further and enter indoor new wind and the indoor temperature difference, thus avoid breaking the balance of indoor temperature as far as possible when changing wind, reduce the additional compensation of indoor temperature.
Although the present invention discloses as above with preferred embodiment, but the present invention is not limited to this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (7)
1. a supply air system, described supply air system includes detection module, control module and defecator, described defecator includes electrostatic precipitator, described supply air system also includes detection module, detection module is for detecting the particle concentration of new wind, the particle concentration of detection is beyond arranging threshold value, and detection module sends a signal to control module, now opens the electrostatic precipitator in defecator；Control module automatically adjusts the size of electric current in electrostatic precipitator according to particle concentration, when particle concentration becomes big, the most automatically increases electric current, when particle concentration diminishes when, the most automatically turns the size of electric current down；
One control function is set in the control module, control module automatically adjusts the size of electric current according to control function, described control function I=F (X), wherein I is size of current, X is particle concentration data, wherein F (X) ' > 0, F''(X) > 0, wherein F (X) ', F''(X) be F(X) first order derivative and second derivative.
2. supply air system as claimed in claim 1, it is characterised in that detection module receives and judges the fine particle concentration making new advances in wind less than arranging threshold value, and it sends a signal to control module, closes the electrostatic precipitator in defecator.
3. the supply air system as described in one of claim 1-2, it is characterised in that detection module is arranged in supply air duct and/or detection module is arranged in new wind air channel.
4. supply air system as claimed in claim 1, it is characterized in that, described control module is capable of adjusting automatically electric current according to particle concentration, control mode is as follows: the when of assuming electric current I, new wind air channel particle concentration X, representing and meet the filter effect of certain condition, above-mentioned electric current I, particle concentration X benchmark data, described benchmark data stores in the control module；
When particle concentration becomes x when, electric current i change is as follows:
I=I*(x/X)a, wherein a is parameter, 1.08 < a < 1.14；
0.8< x/X <1.2。
5., in the case of there are two groups or many group benchmark datas, it is provided that the interface of the benchmark data that user selects in supply air system as claimed in claim 4, it is characterised in that benchmark data is organized in input more in the control module.
6. supply air system as claimed in claim 5, it is characterised in that system automatically selects (1-x/X)2Minimum one of value.
7. supply air system as claimed in claim 1, it is characterised in that described control module can be connected by wireless communication technology with user, and user utilizes mobile phone app remotely to operate VMC (Ventilation Mechanical Control System).
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| CN201510268003.8A CN104930895B (en) | 2015-05-25 | 2015-05-25 | A kind of regenerative heat exchanger and there is the VMC (Ventilation Mechanical Control System) automatically controlling electrostatic precipitation |
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| CN201510268003.8A CN104930895B (en) | 2015-05-25 | 2015-05-25 | A kind of regenerative heat exchanger and there is the VMC (Ventilation Mechanical Control System) automatically controlling electrostatic precipitation |
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| CN104930895B true CN104930895B (en) | 2017-01-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105509345A (en) * | 2015-12-30 | 2016-04-20 | 西安交通大学 | Solar energy storage device utilizing honeycombed heat storage units |
| CN110986239B (en) * | 2019-12-23 | 2020-09-01 | 青建集团股份公司 | Ventilation system utilizing solar energy and building thereof |
| CN111536818B (en) * | 2019-12-23 | 2021-03-12 | 青岛建设集团有限公司 | Heat storage heat exchanger and fresh air system for controlling PM2.5 |
| CN111707111B (en) * | 2020-06-20 | 2022-06-14 | 天津大学 | Dual-purpose header type heat storage radiation plate type indoor heat exchanger for winter and summer |
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Address after: 266112 Shandong City, Chengyang District, Qingdao, the streets of the streets of the Wangjiazhuang neighborhood of the community on the north side of the 500 meters Applicant after: Qingdao Kerui new environmental protection materials Group Co. Ltd. Address before: 266112 Shandong City, Chengyang District, Qingdao, the streets of the streets of the Wangjiazhuang neighborhood of the community on the north side of the 500 meters Applicant before: Qingdao Creek New Environmental Materials Co., Ltd. |
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Denomination of invention: Heat storage heat exchanger and fresh air system with automatic electrostatic precipitation control function Effective date of registration: 20191217 Granted publication date: 20170104 Pledgee: Qingdao Datong Huixin Private Capital Management Co., Ltd Pledgor: Qingdao Kerui new environmental protection materials Group Co. Ltd. Registration number: Y2019370010045 |
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