CN204943717U - A kind of bottom separatory reduces the air-conditioner outdoor unit of filling quantity of refrigerant - Google Patents
A kind of bottom separatory reduces the air-conditioner outdoor unit of filling quantity of refrigerant Download PDFInfo
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- CN204943717U CN204943717U CN201520576246.3U CN201520576246U CN204943717U CN 204943717 U CN204943717 U CN 204943717U CN 201520576246 U CN201520576246 U CN 201520576246U CN 204943717 U CN204943717 U CN 204943717U
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Abstract
The utility model discloses the air-conditioner outdoor unit that a kind of bottom separatory reduces filling quantity of refrigerant, comprise upper end air inlet pipe, lower end liquid pipe, snakelike row's formula heat exchanger tube, this snakelike row's formula heat exchanger tube comprises multiple upper bending section, vertical section and lower bending section, and the end of each lower bending section is all communicated with lower end liquid pipe by communicating pipe; Described upper bending section only initiating terminal is communicated with upper end air inlet pipe; Described vertical section and horizontal plane.In condensation process, condensate stream is in the liquid pipe of lower end, liquid phase burden in condenser is reduced, decrease the filling quantity of cold-producing medium, also be thinned the thickness of liquid film in snakelike row's formula heat exchanger tube while condensate stream to lower end liquid pipe, heat exchange thermal resistance is reduced, increase the coefficient of heat transfer, overall heat-transfer coefficient increases, and improves whole efficiency.
Description
Technical field
The utility model relates to field of Refrigeration and Air-conditioning, particularly relates to the air-conditioner outdoor unit that a kind of bottom separatory reduces filling quantity of refrigerant.
Background technology
China's Air Conditioning Industry Energy Efficiency Standard improves constantly, and also increases the volume of air-condition heat exchanger, filling quantity of refrigerant is also increased while adopting enhanced heat exchange technology to improve air-conditioning whole efficiency.The cold-producing medium of present use belongs to the hydrochlorofluorocarsolvent of ODS, according to the regulations such as " The Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution ", " ODS management rules ", the output of the hydrochlorofluorocarsolvent of ODS and use amount all need less gradually until completely superseded.At present, China is as HCFC22 producing country maximum in the world and use state, in superseded HCFCs cold-producing medium, face difficult challenge.Under the international environment so, how under the prerequisite not reducing heat exchange property and unit performance, the filling quantity reducing cold-producing medium becomes an important research topic.
Fig. 1 is current a kind of normal domestic use air conditioner outdoor unit structure figure.Air-conditioner outdoor unit heat exchanger tube is finned tube horizontal transverse-pipe and arranges, connects employing hosepipe type, air relies on blower fan at the outer forced convertion cooling heat transferring of pipe, cold-producing medium is compressed into high temperature and high pressure gas through compressor, and enter condenser and air heat-exchange, cold-producing medium pipe in by superheated vapor, gas-liquid two-phase condensing heat-exchange to subcooled liquid.Along with the carrying out of condensation process, constantly there is condensate liquid to be formed at wall, hinder the heat exchange of steam and wall, constitute the dominant thermal resistance of heat exchange, reduce the coefficient of heat transfer.Along with being on the increase of condensate liquid, the thickness of liquid film of wall constantly increases, and adds that vapor volume reduces the factor of the refrigerant flow rates reduction brought, condensation effect is sharply worsened.Air side, because in-tube condensation liquid thermal resistance causes the temperature of heat exchanger tube outer wall to decline, the driving force of heat exchange reduces, and the heat exchange amount of Forced Air Convection is reduced.In order to reach enough heat exchange amounts, need to increase heat exchange area to meet heat transfer requirements, adopting fin to increase, tube outside is long-pending improves cost of investment, and volume is also larger, and increase heat exchanger tube length and turn increase liquid phase burden, cause the filling quantity of air-conditioner set to increase.
The patent of invention " liquid separating air condenser " of the patent No. 200610113304.4.Utilize sectional steaming condensation, middle vapor-liquid separation automatically and discharge opeing, concentrate gathering condensate liquid to cross refrigeration technique, ensure that each tube side all enters with pure steam and is cooled, effectively reduce the thickness of liquid film in condensation process and eliminate disadvantageous two phase flow signals; Save material 30% compared with traditional condenser, reduce condenser and make and operating cost, but processed complex.
The utility model patent " a kind of air-cooled condenser " of Authorization Notice No. CN201926216U.-kind of air-cooled condenser is provided, fin tube-in-tube condenser is formed by heat exchanger tube and fin, heat exchanger tube is full of twists and turns shape, heat exchanger tube is divided into from air intake to liquid outlet hires out logical three sections continuously, be vaporized refrigerant in heat exchanger tube first paragraph, being vapour-liquid admixture cold-producing medium in heat exchanger tube second segment, is liquid refrigerant in heat exchanger tube the 3rd section, be characterized in: described heat exchanger tube second segment at least connects a vapor-liquid separating device, vapor-liquid separating device is communicated with by drainage tube and heat exchanger tube the 3rd section.Described heat exchanger tube first paragraph and the 3rd section of employing thermoexcell, and heat exchanger tube second segment adopts common heat exchanger tube.Which improves heat exchange efficiency, and reduce the cost of heat exchange material, same processed complex.
Summary of the invention
The purpose of this utility model is the shortcoming and defect overcoming above-mentioned prior art, provides a kind of bottom separatory to reduce the air-conditioner outdoor unit of filling quantity of refrigerant.Relative to prior art, decrease air-conditioning outdoor machine refrigerant filling quantity, reducer film thickness, improve cooling energy recovery.
The utility model is achieved through the following technical solutions:
A kind of bottom separatory reduces the air-conditioner outdoor unit of filling quantity of refrigerant, comprise upper end air inlet pipe 1, lower end liquid pipe 5, snakelike row's formula heat exchanger tube 3, described snakelike row's formula heat exchanger tube 3 comprises multiple upper bending section, vertical section and lower bending section, and the end of each lower bending section is all communicated with lower end liquid pipe 5 by communicating pipe 1-2; Described upper bending section only initiating terminal 1-1 is communicated with upper end air inlet pipe 1.
The end of described each lower bending section is all by communicating pipe 1-2, and the axial direction along lower end liquid pipe 5 is intervally arranged successively.
The port of described lower end liquid pipe 5 is provided with liquid seal device 4.
The vertical section of described snakelike row's formula heat exchanger tube 3 is provided with fin 2.
The control method of above-mentioned air-conditioner outdoor unit is as follows:
Cold-producing medium enters upper end air inlet pipe 1 from compressor outlet, and flow downward in first vertical tube being entered vertical section by the initiating terminal 1-1 of snakelike row's formula heat exchanger tube 3, convection current cooling-air heat exchange outer with vertical tube, part of refrigerant steam is condensed into liquid, condensate liquid flows downward along first vertical tube inwall, enter into lower end liquid pipe 5 by the communicating pipe 1-2 of lower bending section end, flow to throttle mechanism through liquid seal device 4; Meanwhile, another part second vertical tube that also uncooled refrigerant vapour enters vertical section by communicating pipe 1-2 upwards flows, the 3rd vertical tube entering again vertical section after upper bending section flows downward, the outer convection current cooling-air heat exchange with vertical tube in the process of flowing, condensate liquid flows downward along the 3rd vertical tube inwall, then enter into lower end liquid pipe 5 by the communicating pipe 1-2 of lower bending section end again, flow to throttle mechanism through liquid seal device 4; Condensate liquid flows in this format and constantly circulates, until flow to last root vertical tube of snakelike row's formula heat exchanger tube 3, and enters into lower end liquid pipe 5, flows to throttle mechanism through liquid seal device 4;
Condensate liquid forms fluid-tight at lower end liquid pipe 5 and liquid seal device 4 place, while the refrigerant liquid outflow condenser of condensation, uncooled refrigerant vapour can not flow out condenser, in the vertical tube of then snakelike row's formula heat exchanger tube 3, only some refrigerant steam condensing is liquid, namely the refrigerant liquid scale of construction accumulated in vertical tube reduces, and the filling quantity of refrigerant of air-conditioner set is reduced.
The utility model, relative to prior art, has following advantage and effect:
The utility model snakelike row formula heat exchanger tube 3 comprises multiple upper bending section, vertical section and lower bending section, and the end of each lower bending section is all communicated with lower end liquid pipe 5 by communicating pipe 1-2; Described upper bending section only initiating terminal 1-1 is communicated with upper end air inlet pipe 1.The end of described each lower bending section is all by communicating pipe 1-2, and the axial direction along lower end liquid pipe 5 is intervally arranged successively; Described vertical section and horizontal plane.Refrigerant vapour like this from compressor enters into snakelike row's formula heat exchanger tube 3 by upper end air inlet pipe 1, with the heat exchange of pipe outer convection current cooling-air, refrigerant vapour is condensed into downward liquid flow, enters into lower end liquid pipe 5, flow to throttle mechanism through liquid seal device 4 by communicating pipe 1-2; Now, condensate liquid forms fluid-tight at lower end liquid pipe 5 and liquid seal device 4 place, and while the refrigerant liquid outflow condenser of condensation, uncooled refrigerant vapour can not flow out condenser.
In condensation process, condensate liquid is not accumulate within the condenser, but flow in lower end liquid pipe 5, liquid phase burden in condenser is reduced, decreases the filling quantity of cold-producing medium, while condensate stream to lower end liquid pipe 5, be also thinned the thickness of liquid film in heat exchanger tube, heat exchange thermal resistance is reduced, increase the coefficient of heat transfer, overall heat-transfer coefficient increases, and improves whole efficiency.
The technological means that the utility model adopts, significantly can reduce filling quantity of refrigerant, can improve again air-conditioner outdoor unit heat exchange property and unit overall performance simultaneously, difficulty of processing is low, with low cost.
Accompanying drawing explanation
Fig. 1 is current existing normal domestic use air conditioner outdoor unit structure figure.
Fig. 2 is structural representation of the present utility model (front view).
Fig. 3 is structure top view of the present utility model.
Fig. 4 is structure left view of the present utility model.
Fig. 5 is lower end of the present utility model liquid tubular construction schematic diagram.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
As shown in Fig. 2 to 5.The utility model bottom separatory reduces the air-conditioner outdoor unit of filling quantity of refrigerant, comprise upper end air inlet pipe 1, lower end liquid pipe 5, snakelike row's formula heat exchanger tube 3, it is characterized in that: described snakelike row's formula heat exchanger tube 3 comprises multiple upper bending section, vertical section and lower bending section, and the end of each lower bending section is all communicated with lower end liquid pipe 5 by communicating pipe 1-2; Described upper bending section only initiating terminal 1-1 is communicated with upper end air inlet pipe 1; Described vertical section and horizontal plane.
The end of described each lower bending section is all by communicating pipe 1-2, and the axial direction along lower end liquid pipe 5 is intervally arranged successively.
The port of described lower end liquid pipe 5 is provided with liquid seal device 4.
The vertical section of described snakelike row's formula heat exchanger tube 3 is provided with fin 2.
The air-conditioner outdoor unit control method that the utility model bottom separatory reduces filling quantity of refrigerant realizes by following steps:
Cold-producing medium enters upper end air inlet pipe 1 from compressor outlet (with high pressure gaseous), and flow downward in first vertical tube being entered vertical section by the initiating terminal 1-1 of snakelike row's formula heat exchanger tube 3, convection current cooling-air heat exchange outer with vertical tube, part of refrigerant steam is condensed into liquid, condensate liquid flows downward along first vertical tube inwall, enter into lower end liquid pipe 5 by the communicating pipe 1-2 of lower bending section end, flow to throttle mechanism through liquid seal device 4; Meanwhile, another part second vertical tube that also uncooled refrigerant vapour enters vertical section by communicating pipe 1-2 upwards flows, the 3rd vertical tube entering again vertical section after upper bending section flows downward, the outer convection current cooling-air heat exchange with vertical tube in the process of flowing, condensate liquid flows downward along the 3rd vertical tube inwall, then enter into lower end liquid pipe 5 by the communicating pipe 1-2 of lower bending section end again, flow to throttle mechanism through liquid seal device 4; Condensate liquid flows in this format and constantly circulates, until flow to last root vertical tube of snakelike row's formula heat exchanger tube 3, and enters into lower end liquid pipe 5, flows to throttle mechanism through liquid seal device 4;
Condensate liquid forms fluid-tight at lower end liquid pipe 5 and liquid seal device 4 place, while the refrigerant liquid outflow condenser of condensation, uncooled refrigerant vapour can not flow out condenser, in the vertical tube of then snakelike row's formula heat exchanger tube 3, only some refrigerant steam condensing is liquid, namely the refrigerant liquid scale of construction accumulated in vertical tube reduces, and the filling quantity of refrigerant of air-conditioner set is reduced.
Because the condensation of refrigerant thickness of liquid film in snakelike row's formula heat exchanger tube is thinning, such that the condensing heat-exchange thermal resistance of refrigerant side reduces, cooling energy recovery increases, condenser overall heat-transfer coefficient increases, and heat exchange efficiency improves.
As mentioned above, just the utility model can be realized preferably.
Embodiment of the present utility model is not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present utility model and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (4)
1. the air-conditioner outdoor unit of a bottom separatory minimizing filling quantity of refrigerant, comprise upper end air inlet pipe (1), lower end liquid pipe (5), snakelike row's formula heat exchanger tube (3), it is characterized in that: described snakelike row's formula heat exchanger tube (3) comprises multiple upper bending section, vertical section and lower bending section, the end of each lower bending section is all communicated with lower end liquid pipe (5) by communicating pipe (1-2); Described upper bending section only initiating terminal (1-1) is communicated with upper end air inlet pipe (1); Described vertical section and horizontal plane.
2. air-conditioner outdoor unit according to claim 1, is characterized in that: the end of described each lower bending section is all by communicating pipe (1-2), and the axial direction along lower end liquid pipe (5) is intervally arranged successively.
3. air-conditioner outdoor unit according to claim 1 and 2, is characterized in that: the port of described lower end liquid pipe (5) is provided with liquid seal device (4).
4. air-conditioner outdoor unit according to claim 3, is characterized in that: the vertical section of described snakelike row's formula heat exchanger tube (3) is provided with fin (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520576246.3U CN204943717U (en) | 2015-07-31 | 2015-07-31 | A kind of bottom separatory reduces the air-conditioner outdoor unit of filling quantity of refrigerant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520576246.3U CN204943717U (en) | 2015-07-31 | 2015-07-31 | A kind of bottom separatory reduces the air-conditioner outdoor unit of filling quantity of refrigerant |
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| CN204943717U true CN204943717U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520576246.3U Expired - Fee Related CN204943717U (en) | 2015-07-31 | 2015-07-31 | A kind of bottom separatory reduces the air-conditioner outdoor unit of filling quantity of refrigerant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066277A (en) * | 2015-07-31 | 2015-11-18 | 华南理工大学 | Air conditioner outdoor unit with refrigerant filling amount of lower portion liquid reduced and method of air conditioner outdoor unit |
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2015
- 2015-07-31 CN CN201520576246.3U patent/CN204943717U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066277A (en) * | 2015-07-31 | 2015-11-18 | 华南理工大学 | Air conditioner outdoor unit with refrigerant filling amount of lower portion liquid reduced and method of air conditioner outdoor unit |
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| 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: 20160106 Termination date: 20200731 |