CN206037336U - Frost -proof heat recovery system of outer new trend of preheating chamber - Google Patents
Frost -proof heat recovery system of outer new trend of preheating chamber Download PDFInfo
- Publication number
- CN206037336U CN206037336U CN201620979134.7U CN201620979134U CN206037336U CN 206037336 U CN206037336 U CN 206037336U CN 201620979134 U CN201620979134 U CN 201620979134U CN 206037336 U CN206037336 U CN 206037336U
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- Prior art keywords
- heat exchanger
- heat
- recovery system
- temperature
- fresh air
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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]
- Y02B30/56—Heat recovery units
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- Air Conditioning Control Device (AREA)
Abstract
The utility model provides a frost -proof heat recovery system of outer new trend of preheating chamber, including fresh air pipeline, the passageway of airing exhaust, central heat transfer board and frost -proof system. Outdoor new trend gets into fresh air pipeline from new trend entry, and indoor airing exhaust from the entry of airing exhaust gets into the passageway of airing exhaust, and the hot working medium that trades that the circulating pump promoted in the heat exchanger flows, and the indoor temperature new trend temperature outdoor relatively of airing exhaust is higher, can realize indoor airing exhaust and the intensive heat transfer of outdoor new trend through the heat exchanger to improve the temperature of outdoor new trend contact center heat transfer board. The utility model overcomes consuming extra energy among the prior art and heating the new trend, the circulation circuit of the heat exchanger that sets up through air exhaust entry and new trend entry utilizes the heat of airing exhaust to preheat the new trend, and the solve is crossed by outdoor new trend temperature and is hanged down and lead to the problem that the hot switching path of air frosted, has improved entire system's heat exchange efficiency effectively.
Description
Technical field
This utility model belongs to air antifrost technical field, and more particularly to a kind of antifrost heat of preheating outdoor fresh air is returned
Receipts system.
Background technology
Air-air heat recovery system has as indoor ventilation equipment improves indoor air quality and reducing energy consumption etc.
Advantage, but remain in the application of severe cold and cold district in very big obstacle at present, as outdoor temperature is low, indoor humidity is high,
Heat-exchange device in heat recovery system there may be different degrees of frosting problem.If frost accumulated is removed not in time, will blocking
Air heat exchange passage simultaneously reduces heat transfer area so that air flow resistance is significantly increased, and heat exchanged thermoresistance is significantly increased, and causes sky
Gas-air heat recovery system overall performance declines.
In equipment similar to this utility model at present, mostly by external preheater preheating or electric heated defrosting etc.
Method, but need to consume extra energy (electric energy or heat energy) to heat fresh air, therefore reduce whole system heat reclamation device
Efficiency.
Secondly as lacking the effective monitoring to frosting, it is impossible to prevent frosting, can only be defrosted after frosting occurs,
Also system heat recovery system overall performance is caused to decline.
Utility model content
The purpose of this utility model is consume in prior art additional energy to heat fresh air to overcome, more than air draft
Heat is preheated to fresh air, so as to effectively increase the heat exchange efficiency of whole system.
For solving above-mentioned technical problem, a kind of antifrost recuperation of heat system of preheating outdoor fresh air that this utility model is provided
System, including fresh air channel, air exhaust passage and center heat exchanger plates, also including anti-caking defrosting system, the anti-caking defrosting system includes arranging
Heat exchanger in the fresh air inlet of the fresh air channel and the air draft entrance of the air exhaust passage and for closed circulation and
Promote the circulating pump of heat-exchange working medium flowing in the heat exchanger.
Preferably, in the antifrost heat recovery system of above-mentioned preheating outdoor fresh air, the heat exchanger is arranged on the row
The wall of wind entrance and the fresh air inlet and away from the center heat exchanger plates install.
Preferably, in the antifrost heat recovery system of above-mentioned preheating outdoor fresh air, also include：Temperature sensor, is used for
Detect the temperature at the center heat exchanger plates；Controller, in minimum of the temperature less than preset temperature range, the control
Device processed controls the circulating pump and opens.
Preferably, in the antifrost heat recovery system of above-mentioned preheating outdoor fresh air, it is higher than preset temperature in the temperature
During the peak of scope, the controller controls the circulating pump to be stopped.
Preferably, in the antifrost heat recovery system of above-mentioned preheating outdoor fresh air, the temperature sensor is thermocouple.
Preferably, in the antifrost heat recovery system of above-mentioned preheating outdoor fresh air, the temperature sensor is uniformly installed
In the air draft side of the center heat exchanger plates.
Preferably, in the antifrost heat recovery system of above-mentioned preheating outdoor fresh air, the quantity of the temperature sensor is 9
It is individual.
Preferably, in the antifrost heat recovery system of above-mentioned preheating outdoor fresh air, the preset temperature range is 2-5
℃。
Preferably, in the antifrost heat recovery system of above-mentioned preheating outdoor fresh air, the heat exchanger is serpentine coil.
Preferably, in the antifrost heat recovery system of above-mentioned preheating outdoor fresh air, the heat-exchange working medium is ethylene glycol water
Solution.
Relative to background technology, a kind of antifrost heat recovery system of preheating outdoor fresh air provided by the utility model,
Including fresh air channel, air exhaust passage, center heat exchanger plates and anti-caking defrosting system.Outdoor fresh air enters fresh air channel from fresh air inlet,
Indoor exhaust wind enters air exhaust passage from air draft entrance, and circulating pump promotes the heat-exchange working medium flowing in heat exchanger, indoor exhaust wind temperature
It is higher with respect to outdoor fresh air temperature, the enhanced heat exchange of indoor exhaust wind and outdoor fresh air can be realized by heat exchanger, so as to improve
Outdoor fresh air contacts the temperature of center heat exchanger plates.This utility model consumes additional energy in overcoming prior art new to heat
Wind, the closed circuit of the heat exchanger arranged by air draft entrance and fresh air inlet, is preheated to fresh air using the heat of air draft,
Solve the problems, such as too low by outdoor fresh air temperature and cause air heat exchange passage frosting, be effectively improved whole system
Heat exchange efficiency.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing for providing.
Fig. 1 is a kind of antifrost heat recovery system of preheating outdoor fresh air provided by the utility model；
Fig. 2 is the arrangement schematic diagram of heat exchanger plates temperature sensor in center provided by the utility model；
Fig. 3 is automatic control system schematic diagram provided by the utility model；
Fig. 4 is the partial view of serpentine coil provided by the utility model.
In figure 1 above -4：
Air draft entrance 1, wind exhausting outlet 2, exhaust blower 3, temperature sensor 4, center heat exchanger plates 5, controller 6,7, fresh air enter
The outlet 10, circulating pump 11 of mouth 8, pressure fan 9, fresh air.
Specific embodiment
The purpose of this utility model is consume in prior art additional energy to heat fresh air to overcome, more than air draft
Heat is preheated to fresh air, so as to effectively increase the heat exchange efficiency of whole system.
In order that those skilled in the art more fully understands the technical scheme that this utility model is provided, below in conjunction with attached
The utility model is described in further detail with specific embodiment for figure.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 is refer to, this utility model provides a kind of antifrost recuperation of heat of preheating outdoor fresh air
System, including fresh air channel, air exhaust passage, center heat exchanger plates 5 and anti-caking defrosting system.The fresh air inlet 8 of fresh air channel and outdoor
Fresh air is connected, and the air draft entrance 1 of air exhaust passage is connected with indoor exhaust wind, and air draft is discharged from wind exhausting outlet 2 after waste heat recovery.
In order to promote air circulation fresh air channel can be loaded pressure fan 9, air exhaust passage loads exhaust blower 3.Fresh air channel and air draft
Heat exchanger plates 5 centered on the channel wall of fitting part between passage.Anti-caking defrosting system includes that being arranged on air draft entrance 1 and fresh air enters
The circulating pump 11 of heat-exchange working medium flowing in mouth 8 and the heat exchanger 7 for closed circulation and promotion heat exchanger 7.
In flow process, circulating pump 11 promotes the heat-exchange working medium flowing in heat exchanger 7, and indoor exhaust wind temperature is relatively outdoor
New air temperature is higher, can realize the enhanced heat exchange of indoor exhaust wind and outdoor fresh air by heat exchanger 7, so as to improve outdoor fresh air
The temperature of contact center heat exchanger plates 5.Relative to prior art, this utility model is solved as outdoor fresh air temperature is too low and is led
The problem of cause air heat exchange passage air draft side surface frosting, and the heat exchanger arranged by air draft entrance and fresh air inlet
Closed circuit, the heat for being sufficiently used air draft are preheated to fresh air, are effectively improved the heat exchange efficiency of whole system.
Further, heat exchanger 7 could be arranged to the wall installed in air draft entrance 1 and fresh air inlet 8, and away from heat exchanger
Center heat exchanger plates 5 install, its position can reduce the disturbance to center heat exchanger plates 5 and to fresh air channel and air exhaust passage
The pressure drop of airduct, Local map are as shown in Figure 4.
Heat exchanger 7 can be serpentine coil, relatively large relative to the heating surface area of other pipelines, using wide in engineering
It is general.Mass concentration can be adopted in heat exchanger 7 for 50% glycol water freezing point be -33.8 DEG C or so as heat transfer medium,
Glycol water can effectively avoid heat transfer medium from freezing under severe cold operating mode and affect as a kind of low anti-icing fluid of freezing point
The normal work of system.
The heat exchanger 7 of air draft entrance 1 is stored in the waste heat in air draft in glycol water, by circulating pump 11 by temperature
The higher glycol water of degree is transported into the heat exchanger 7 of fresh air inlet 8, fresh air is preheated, air draft is eventually passed back to and is entered
In the heat exchanger 7 of mouth 1, and so on circulate.
Further, antifrost heat recovery system also includes temperature sensor 4 and controller 6.
Temperature sensor 4 carries out monitor in real time to system temperature, the pre- antifrost from source so that control is with advanced
Property.The temperature that temperature sensor 4 is used at inspection center's heat exchanger plates 5, realizes that heat exchanging central plate 5 carries out real-time monitoring, and will
The temperature signal immediate feedback is to controller 6.
Center heat exchanger plates 5 are provided with the preset temperature range for opening and closing defrosting state, including minimum and peak.
Controller 6 when the temperature of center heat exchanger plates 5 is less than the minimum of preset temperature range, open by the control circulating pump 11 of controller 6.
Temperature signal is transformed into the signal of telecommunication and is sent to temperature controller 12 by the temperature of perception center heat exchanger plates 5.Temperature controller 12
According to the feedback signal of thermocouple, when at center, the temperature of heat exchanger plates 5 reaches the preset temperature range inside program, open the circulation pump
11.In peak of the temperature higher than preset temperature range, the control circulating pump 11 of controller 6 stops.
After circulating pump 11 starts, heat-exchange working medium initially enters the heat exchanger 7 at air draft entrance 1, flow direction and air draft wind
To adverse current is formed, enhanced heat exchange, the higher air draft of temperature carry out sufficient heat exchange, absorb the heat in air draft, and temperature is raised,
The heat exchanger 7 at fresh air inlet 8 is delivered to by circulating pump 11 again, the outdoor fresh air relatively low with temperature is carried out in the heat exchanger 7
Heat exchange, flow direction form adverse current with fresh air wind direction, come back to the heat exchanger at air draft entrance 1 after the temperature for improving fresh air
In 7, continue to absorb air exhaust waste heat, and so on circulate, until the highest of 5 temperature recovery of center heat exchanger plates to preset temperature range
During value, controller 6 cuts off the power supply of circulating pump 11, and antifrost heat regenerative system quits work.Treat that temperature sensor 4 detects center
Antifrost heat regenerative system restarting when the temperature of heat exchanger plates 5 is less than the minimum of preset temperature range.
Specifically, temperature sensor 4 can be thermocouple, and its quantity can be 9.Temperature sensor 4 is uniformly arranged on
The air draft side of center heat exchanger plates 5.Fig. 2 is when the distribution situation that the temperature sensor quantity on the heat exchanger plates of center is 9.9
The temperature probe of individual temperature sensor 4 is evenly spaced on center heat exchanger plates 5.The arrangement rule of temperature sensor 4 is as follows：By in
Heart heat exchanger plates 5 are divided into 3 rows 3 and arrange totally 9 shape identical rectangles, in the center arrangement temperature sensor 4 of each rectangle, arrange
The temperature probe of 9 temperature sensors 4 can preferably take into account the temperature of 5 central temperature of center heat exchanger plates and its surrounding, more entirely
The distribution situation of face ground reflection heat exchange plate temperature, improves the control accuracy of system.
On the whole, the antifrost heat recovery system of a kind of preheating outdoor fresh air provided by the utility model, can not only
Enough fresh air is preheated using itself air exhaust waste heat, consume additional energy to heat fresh air in overcoming prior art, moreover it is possible to logical
Excess temperature sensor carries out real-time monitoring, the pre- antifrost from source so that control ultimately provides one kind certainly with advanced
Dynamicization degree is high, be concisely and efficiently antifrost heat recovery system.
Above a kind of antifrost heat recovery system of preheating outdoor fresh air provided by the utility model has been carried out in detail
Introduce.Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Illustrate that being only intended to help understands method of the present utility model and its core concept.It should be pointed out that general for the art
For logical technical staff, on the premise of without departing from this utility model principle, some improvement can also be carried out to this utility model
And modification, these improve and modification is also fallen in this utility model scope of the claims.
Claims (10)
1. it is a kind of preheating outdoor fresh air antifrost heat recovery system, including fresh air channel, air exhaust passage and center heat exchanger plates
(5), it is characterised in that also including anti-caking defrosting system, the anti-caking defrosting system includes that the fresh air for being arranged on the fresh air channel enters
Mouth (8) and the air draft entrance (1) of the air exhaust passage and the heat exchanger (7) for closed circulation and the promotion heat exchanger
(7) circulating pump (11) of interior heat-exchange working medium flowing.
2. antifrost heat recovery system according to claim 1, it is characterised in that described heat exchanger (7) are arranged on described
The wall of air draft entrance (1) and the fresh air inlet (8) and away from described center heat exchanger plates (5) install.
3. antifrost heat recovery system according to claim 1, it is characterised in that also include：
Temperature sensor (4), for detecting the temperature at center heat exchanger plates (5) place；
Controller (6), in minimum of the temperature less than preset temperature range, described controller (6) control the circulation
Pump (11) is opened.
4. antifrost heat recovery system according to claim 3, it is characterised in that be higher than preset temperature model in the temperature
During the peak for enclosing, described controller (6) control described circulating pump (11) and stop.
5. antifrost heat recovery system according to claim 3, it is characterised in that described temperature sensor (4) are thermoelectricity
It is even.
6. the antifrost heat recovery system according to any one in claim 3-5, it is characterised in that the temperature sensing
Device (4) is uniformly installed in the air draft side of center heat exchanger plates (5).
7. the antifrost heat recovery system according to any one in claim 3-5, it is characterised in that the temperature sensing
The quantity of device (4) is 9.
8. the antifrost heat recovery system according to any one in claim 3-5, it is characterised in that the preset temperature
Scope is 2-5 DEG C.
9. antifrost heat recovery system according to claim 1, it is characterised in that described heat exchanger (7) are serpentine coil.
10. antifrost heat recovery system according to claim 1, it is characterised in that the heat-exchange working medium is ethylene glycol water
Solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620979134.7U CN206037336U (en) | 2016-08-29 | 2016-08-29 | Frost -proof heat recovery system of outer new trend of preheating chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620979134.7U CN206037336U (en) | 2016-08-29 | 2016-08-29 | Frost -proof heat recovery system of outer new trend of preheating chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206037336U true CN206037336U (en) | 2017-03-22 |
Family
ID=58303491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620979134.7U Expired - Fee Related CN206037336U (en) | 2016-08-29 | 2016-08-29 | Frost -proof heat recovery system of outer new trend of preheating chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206037336U (en) |
-
2016
- 2016-08-29 CN CN201620979134.7U patent/CN206037336U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20190829 |