CN201436493U - Heat pipe antifreeze type air conditioning unit - Google Patents
Heat pipe antifreeze type air conditioning unit Download PDFInfo
- Publication number
- CN201436493U CN201436493U CN2009200068865U CN200920006886U CN201436493U CN 201436493 U CN201436493 U CN 201436493U CN 2009200068865 U CN2009200068865 U CN 2009200068865U CN 200920006886 U CN200920006886 U CN 200920006886U CN 201436493 U CN201436493 U CN 201436493U
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- conditioning unit
- pipe
- condenser
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 37
- 230000002528 anti-freeze Effects 0.000 title claims abstract description 22
- 230000005494 condensation Effects 0.000 abstract description 10
- 238000009833 condensation Methods 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000001704 evaporation Methods 0.000 abstract description 8
- 238000004134 energy conservation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nMzAwcHgnIGhlaWdodD0nMzAwcHgnIHZpZXdCb3g9JzAgMCAzMDAgMzAwJz4KPCEtLSBFTkQgT0YgSEVBREVSIC0tPgo8cmVjdCBzdHlsZT0nb3BhY2l0eToxLjA7ZmlsbDojRkZGRkZGO3N0cm9rZTpub25lJyB3aWR0aD0nMzAwLjAnIGhlaWdodD0nMzAwLjAnIHg9JzAuMCcgeT0nMC4wJz4gPC9yZWN0Pgo8dGV4dCB4PScxMDAuNScgeT0nMTcwLjAnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6NDBweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID5IPC90ZXh0Pgo8dGV4dCB4PScxMjYuMScgeT0nMTg2LjAnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6MjZweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID4yPC90ZXh0Pgo8dGV4dCB4PScxMzguMCcgeT0nMTcwLjAnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6NDBweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID5PPC90ZXh0Pgo8L3N2Zz4K data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
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- 238000007710 freezing Methods 0.000 description 3
- 230000000249 desinfective Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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Abstract
The utility model discloses a heat pipe antifreeze type air conditioning unit, comprising a heating coil pipe, a heat pipe device, in which the heat pipe device includes a condenser, an evaporator and a connecting pipeline; the condenser and the evaporator are respectively located at the air-in side and the air-out side of the heating coil pipe; a special working medium is filled in the heat pipe device; a certain height difference is arranged between the condensation end and the evaporation end; the working medium is evaporated on the evaporation end through absorbing heat from the high temperature environment and is condensed on the condensation end through releasing heat to the low temperature environment; an inner circulation is formed owing to a certain height difference and density difference between the evaporation end and the condensation end so as to transfer the heat from the evaporation end to the condensation end without external force, thus leading the heat of the high temperature air-flow at the air-out side of the heating coil pipe to be transferred to the air-flow at the air-in side for preheating so as to increase the air intake temperature of the heating coil pipe. The air conditioning unit is antifreezing in winner, has lower air supply temperature, energy conservation, simple structure, low cost and no maintenance.
Description
Technical field
The utility model relates to the air-conditioning system technical field, particularly a kind of heat pipe anti-freeze type air-conditioning unit.
Background technology
China territory is vast, the north and south temperature difference is bigger, at north cold area, when the air-conditioning unit of brand-new wind operation moves in the winter time, new wind EAT cross low or the hot water temperature on the low side, all may cause the interior hot water of coil pipe to freeze gradually, water is solidified as ice volumetric expansion afterwards, and this will inevitably cause the heat exchange copper tube spalling of heat(ing) coil.Therefore, the operation of heat(ing) coil (hot water or steam pipe coil) is antifreeze, is for many years to compare stubborn problem in Air-conditioner design and the operational management always.
The basic reason of coil pipe bursting by freezing is that the unit EAT is low excessively.In order to reach the constant purpose of coil pipe safe operation and wind pushing temperature, common have two kinds of ways.As shown in Figure 1 a kind of, heat(ing) coil is divided into two-stage, the two-stage heat(ing) coil is connected with water inlet pipe 18, return pipe 17 respectively, the heating efficiency of one-level heat(ing) coil 14 accurately designs, make it new wind can only be heated to 5～10 ℃, keep higher flow velocity and not icing to guarantee the hot water in the one-level heat(ing) coil.Secondary heat(ing) coil 15 is installed electric control valve 16, regulate hot water flow, to guarantee wind pushing temperature, this kind scheme also can realize antifreeze function on principle, but its shortcoming is: for security consideration, at one-level coil pipe place electric control valve is not installed usually, so its temperature is unadjustable, and the heat transfer efficiency of hot water is higher, simultaneously in actual motion, water system flow and design depart from the autumn, winter the outside atmosphere temperature fluctuation, the capital causes one-level coil pipe heating efficiency in some time period excessive, wind pushing temperature is higher, and this makes indoor temperature raise, and has both wasted energy, can make indoor occupant feel scorching fidgety again, produce discomfort.
Another kind is to install electric heater unit additional at air inlet (new wind acquisition port), forces heating more than 0 ℃ new wind with electric energy, and heat(ing) coil is regulated wind pushing temperature.Though this kind method can guarantee cold air distribution, can avoid coil pipe freezing again, increased power consumption, the operating cost height, uneconomical.
The utility model content
Problem to be solved in the utility model provides a kind of heat pipe anti-freeze type air-conditioning unit, antifreeze effect in the time of can being implemented in winter operation, again can cold air distribution and conserve energy, simple in structure, need not safeguard, cost is low.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows:
A kind of heat pipe anti-freeze type air-conditioning unit, comprise heat(ing) coil, be provided with heat-pipe apparatus before and after the described heat(ing) coil, described heat-pipe apparatus comprises condenser and evaporimeter, described condenser and evaporimeter lay respectively at the inlet side and the air side of described heat(ing) coil, described condenser is connected by pipeline with evaporimeter, constitutes heat pipe circuit.
Preferably, described condenser is higher than described evaporimeter, makes the working media in the heat pipe circuit can form difference in height, and the efficient of heat exchange is higher.
Preferably, described heat pipe circuit can be one or more groups, and being provided with that one group of heat pipe circuit can reach can be antifreeze, and effect that again can cold air distribution is provided with many group heat pipe circuit and can makes heat exchange effect better.
Preferably, the working media in the described heat pipe circuit is any of R134a, R13, R22, R407c, and the condensation temperature of aforementioned working media is low, can also can select the low working media of other condensation temperatures for use in operate as normal under the low temperature environment.
Preferably, also comprise pressure fan, accelerate air supply velocity.
Preferably, also comprise one or more levels filter, to entering the outdoor new wind of air-conditioning unit, carry out filtration treatment, remove airborne impurity, the multistage filtering device is concentrated and is arranged on the place in the air-conditioning unit or is distributed in many places, can make filtration treatment more thorough, the air of sending is cleaner.
Preferably, also comprise humidifier, the air that enters in the air-conditioning unit is added wet process, make the humidity of sending air suitable.
Preferably, also comprise muffler, reduce the noise that unit operation brings.
Preferably, also comprise sterilizer, to entering the air disinfection in the air-conditioning unit.
Compare with existing air-conditioning unit, the utlity model has following advantage with operation antifreeze function:
The utility model is owing to be provided with heat pipe circuit before and after heat(ing) coil, the evaporation of under the evaporimeter hot environment, absorbing heat of the inner working media that fills of heat pipe circuit, heat release condensation under the condenser low temperature environment, because working media can form inner loop between evaporimeter and condenser, self can finish heat from evaporation ends to the transfer of condensation end and do not need external force, this makes the transfer of heat of high temperature gas flow of heating tube dish air side give the air-flow of inlet side as preheating, thereby improve the EAT of heat(ing) coil, can realize the antifreeze effect of air conditioner unit in winter operation, also can reduce the wind pushing temperature of air-conditioning unit simultaneously, and conserve energy, simple in structure, need not safeguard, cost is low.
Description of drawings
Fig. 1 is the structural representation of existing anti-freeze type air-conditioning unit;
Fig. 2 is the structural representation of the utility model heat-pipe apparatus and heat(ing) coil;
Fig. 3 is the structural representation of the utility model heat pipe anti-freeze type air-conditioning unit first embodiment;
Fig. 4 is the structural representation of the utility model heat pipe anti-freeze type air-conditioning unit second embodiment;
Fig. 5 is the structural representation of the utility model heat pipe anti-freeze type air-conditioning unit the 3rd embodiment.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Referring to Fig. 2 and Fig. 3, first embodiment describes to the utility model heat pipe anti-freeze type air-conditioning unit.
As Fig. 2, heat-pipe apparatus of the present utility model comprises condenser 21, evaporimeter 22, lay respectively at the inlet side and the air side of heat(ing) coil 1, condenser 21 is connected to form heat pipe circuit 2 with evaporimeter 22 by pipeline, be filled with working media in this heat pipe circuit 2, the evaporation of under evaporimeter 22 hot environments, absorbing heat of this working media, heat release condensation under condenser 21 low temperature environments, owing to evaporimeter 22 and condenser 21 exist certain density contrast to form inner loop, finish heat from the transfer of evaporimeter 22 to condenser 21.
In addition, heat-pipe apparatus of the present utility model also can further improve, and briefly explains as follows:
For example, the height of condenser 21 is higher than the height of evaporimeter 22 in the heat pipe circuit, exists certain height difference and density contrast to form inner loop owing to evaporimeter 22 and condenser 21 like this, is more conducive to finish heat from the transfer of evaporimeter 22 to condenser 21.
And for example, the utility model heat-pipe apparatus can be provided with two groups or more heat pipe circuit, the heat exchange better effects if.
As Fig. 3, heat pipe anti-freeze type air-conditioning unit comprises cabinet 4, air inlet 5, air outlet 6, between air inlet 5 and air outlet 6, also be provided with first filter 7, second filter 8, the 3rd filter 9, humidifier 10, pressure fan 13 successively, heat(ing) coil is located at after the 3rd filter 9, before the humidifier 10, heat-pipe apparatus is located at before and after the heat(ing) coil, and its condenser 21 and evaporimeter 22 lay respectively at the inlet side and the air side of heat(ing) coil 1, and condenser 21 is higher than evaporimeter 22.
During the work of air-conditioning unit, outdoor new wind enters from air inlet, through first filter 7, second filter 8, the 3rd filter filters 9, the condenser 21 of then flowing through, condenser 21 heat release condensations, then be heated through behind the heat(ing) coil 1, temperature raises, flow through behind the evaporimeter 22, evaporimeter heat absorption evaporation, owing to difference in height and the density contrast of working media at condenser 21 and evaporimeter 22 two ends of heat pipe circuit 2 inside forms inner loop, high-temperature medium in the evaporimeter 22 moves to pinnacled condenser 21, cryogenic media in the condenser 21 moves to the evaporimeter 22 at lower, thereby finish heat exchange, so circulation makes outdoor new wind temperature through condenser 21 time raise, to avoid heat(ing) coil 1 bursting by freezing, because the cryogenic media of condenser 21 flows to evaporimeter 22, cause air themperature to reduce, in addition to avoid heat(ing) coil 1 long-time heating through heat(ing) coil 1, the discomfort that the wind pushing temperature height brings to the people.Outdoor new wind carries out humidification through humidifier after carrying out temperature control through heat-pipe apparatus immediately, is sent by air outlet.
Referring to Fig. 4, second embodiment describes to the utility model heat pipe anti-freeze type air-conditioning unit.
Air-conditioning unit in the present embodiment comprises cabinet 4, air inlet 5, air outlet 6, air inlet 5 is provided with first filter 7, between air inlet and air outlet, also be provided with pressure fan 13, second filter 8, the 3rd filter 9, humidifier 10 successively, heat(ing) coil 1 is located at after the 3rd filter 7, before the humidifier 10, heat-pipe apparatus is located at heat(ing) coil 1 front and back, and its condenser 21 and evaporimeter 22 lay respectively at the inlet side and the air side of heat(ing) coil 1, and condenser 21 is higher than evaporimeter 22.
Compare with first embodiment, the characteristics of present embodiment are: first filter 7 is placed on the air inlet 5, and outdoor new wind was just filtered earlier before entering cabinet inside, can make filter effect better like this.Its operation principle does not repeat them here as first embodiment.
Referring to Fig. 5, the 3rd embodiment describes to the utility model heat pipe anti-freeze type air-conditioning unit.
Air-conditioning unit in the present embodiment comprises cabinet 4, air inlet 5, air outlet 6, between air inlet 5 and air outlet 6, also be provided with first filter 7, humidifier 10, pressure fan 13, second filter 8, the 3rd filter 9 successively, heat(ing) coil 1 is located at after described first filter 7, before the humidifier 10, heat-pipe apparatus is located at heat(ing) coil 1 front and back, its condenser 21 and evaporimeter 22 lay respectively at the inlet side and the air side of described heat(ing) coil, and condenser 21 is higher than evaporimeter 22.
Compare with first embodiment, second embodiment, the characteristics of present embodiment are: heat(ing) coil and heat-pipe apparatus are arranged on after first filter 7, before second filter 8, the 3rd filter 9, outdoor new wind is all filtered before and after flow through heat(ing) coil and heat-pipe apparatus, can make filter effect better like this.Its operation principle does not repeat them here as first embodiment.
For reaching better effect, also can in first, second and third embodiment, add with the fan group:
Sterilizer 3 to the air disinfection in the unit, thereby makes air-out cleaner.
Muffler 12 carries out noise reduction to unit inside and handles, and reduces noise.
In addition, it should be noted that also that the heat-pipe apparatus in the utility model can also be applied to EAT, and to be lower than the coil pipe of 0 ℃ refrigeration or air-conditioning equipment antifreeze, its principle of meeting the tendency is identical with the meet the tendency principle of heat-pipe apparatus in the utility model air-conditioning unit.
The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction., all belong in the scope of technical solutions of the utility model protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present utility model.
Claims (9)
1. heat pipe anti-freeze type air-conditioning unit, comprise heat(ing) coil, it is characterized in that, be provided with heat-pipe apparatus before and after the described heat(ing) coil, described heat-pipe apparatus comprises condenser and evaporimeter, described condenser and evaporimeter lay respectively at the inlet side and the air side of described heat(ing) coil, and described condenser is connected by pipeline with evaporimeter, constitute heat pipe circuit.
2. air-conditioning unit according to claim 1 is characterized in that described condenser is higher than described evaporimeter.
3. air-conditioning unit according to claim 1 is characterized in that, described heat pipe circuit is one or more groups.
4. according to each described air-conditioning unit of claim 1-3, it is characterized in that the working media in the described heat pipe circuit is any among R134a, R13, R22, the R407c.
5. air-conditioning unit according to claim 1 is characterized in that, also comprises pressure fan.
6. air-conditioning unit according to claim 1 is characterized in that, also comprises one or more levels filter.
7. air-conditioning unit according to claim 1 is characterized in that, also comprises humidifier.
8. air-conditioning unit according to claim 1 is characterized in that, also comprises muffler.
9. air-conditioning unit according to claim 1 is characterized in that, also comprises sterilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200068865U CN201436493U (en) | 2009-03-30 | 2009-03-30 | Heat pipe antifreeze type air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200068865U CN201436493U (en) | 2009-03-30 | 2009-03-30 | Heat pipe antifreeze type air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436493U true CN201436493U (en) | 2010-04-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200068865U Expired - Fee Related CN201436493U (en) | 2009-03-30 | 2009-03-30 | Heat pipe antifreeze type air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436493U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353099A (en) * | 2011-08-23 | 2012-02-15 | 上海京瓷电子有限公司 | Energy-efficient air conditioner in winter |
| CN103388857A (en) * | 2013-08-19 | 2013-11-13 | 苏州惠林节能材料有限公司 | Heat pipe self-temperature returning preheat type heating fresh air handling unit |
| CN103868224A (en) * | 2014-04-04 | 2014-06-18 | 王彦国 | Antifreezing type heating section for fresh air handling unit and combined type air conditioning unit |
-
2009
- 2009-03-30 CN CN2009200068865U patent/CN201436493U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353099A (en) * | 2011-08-23 | 2012-02-15 | 上海京瓷电子有限公司 | Energy-efficient air conditioner in winter |
| CN103388857A (en) * | 2013-08-19 | 2013-11-13 | 苏州惠林节能材料有限公司 | Heat pipe self-temperature returning preheat type heating fresh air handling unit |
| CN103868224A (en) * | 2014-04-04 | 2014-06-18 | 王彦国 | Antifreezing type heating section for fresh air handling unit and combined type air conditioning unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG YASHI CO., LTD. Free format text: FORMER OWNER: YASHI AIR CONDITIONER (GUANGZHOU) CO., LTD. Effective date: 20110906 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 511434 GUANGZHOU, GUANGDONG PROVINCE TO: 261061 WEIFANG, SHANDONG PROVINCE |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110906 Address after: 261061 7898 Taoyuan Street, hi tech Development Zone, Shandong, Weifang Patentee after: Shandong Yashi Co., Ltd. Address before: 511434 Guangdong city of Guangzhou province Panyu District Zhenlong Jin Road No. 1 Patentee before: Yashi Air Conditioner (Guangzhou) Co Ltd |
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| 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: 20100407 Termination date: 20170330 |