CN1071440C - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN1071440C CN1071440C CN94101063A CN94101063A CN1071440C CN 1071440 C CN1071440 C CN 1071440C CN 94101063 A CN94101063 A CN 94101063A CN 94101063 A CN94101063 A CN 94101063A CN 1071440 C CN1071440 C CN 1071440C
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- expansion valve
- electric expansion
- reheater
- heat converter
- valve
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention relates to an air conditioner which can omit an original bypass pipe and an electromagnetic valve and a check valve which are arranged on the bypass pipe. A first electronic expansion valve is arranged between an outdoor heat exchanger and a reheater, and simultaneously, an electronic expansion valve and a controller are arranged between the reheater and an indoor heat exchanger; when refrigeration and heating are carried out, the opening degree of the first electronic expansion valve is increased or decreased along with loads, and simultaneously, the second electronic expansion valve is opened fully. When dehumidification is carried out, the first electronic expansion valve is opened fully, and simultaneously, the opening degree of the second electronic expansion valve is increased or decreased along with the loads.
Description
The present invention relates to air-conditioner.
With reference to Fig. 4, one of the refrigerant loop of existing air-conditioner example is described as follows.
Existing as shown in Figure 4 air-conditioner, when dehumidifying (dry) operation, four-port conversion value 12 is transformed into the state shown in the solid line among Fig. 4, and magnetic valve 24,29 converts normally off to, and magnetic valve 17 converts out the valve state to.
So by the gaseous refrigerant process four-port conversion value 12 that compressor 11 compresses, inlet chamber outer heat-exchanger 13 is blown to the outdoor air heat release to outdoor fan (fant) 14 at this, the part cold-producing medium is condensed and liquefies.
This cold-producing medium passes through bypass pipe (bypass) 16 successively and is contained in the magnetic valve 17 and the check-valves 18 of this bypass pipe middle part, flows into reheater 21, blow to indoor fan 27 at this, and to the room air heat release, thus condensation liquefaction, the liquefy cold-producing medium.
This cold-producing medium is through capillary (capillary tube) 22 by throttling and after carrying out adiabatic expansion, inflow indoor heat exchanger 26, blow to indoor fan 27 at this, by absorbing heat in the room air, therefore be vaporized and become gaseous state autocratic monarchy cryogen, through four-port conversion value 12, be inhaled in the compressor 11 then.
Room air is attracted by indoor fan 27, when flowing through the process status of indoor heat converter 26, controls another electric expansion valve and its aperture is increased by the size of load or reduces.This architectural feature is not mentioned in documents 1 yet.The aperture that documents 1 only discloses electric expansion valve 8 tapers to the such feature of desired value according to the ON/OFF switching manipulation of outdoor fan 21 from initial value.
Because air-conditioner of the present invention only is equipped with the 1st electric expansion valve in the pipeline that is connected between outdoor heat converter and the reheater, and the 2nd electric expansion valve only is housed in the pipeline that is connected between reheater and the indoor heat converter, thereby saved the bypass pipe that need install additional under the regular situation, magnetic valve and check-valves etc., its structure is simplified.In addition, because when one of the 1st electric expansion valve and the 2nd electronic expansion threshold standard-sized sheet, control another electric expansion valve and its aperture is increased according to the size of load or reduce, thereby can realize level and smooth driving.
In sum, the present invention is different from documents 1 disclosed content, and compare with documents 1, this claim 1 has outstanding substantive distinguishing features and obvious improvement, the novelty and the creativeness that possess the 22nd regulation of patent law of china, thus its dependent claims 2 and 3 also possesses patentability.
Adapt with the modification of claim 1, the applicant has also revised the technical scheme part in the specification.
Please the auditor reappraise patentability of the present invention, continue the trial of this case, thanks! Cost, and reduced reliability, this is the problem that existing air-conditioner exists.
The present invention develops in order to address the above problem, the object of the present invention is to provide a kind of like this air-conditioner, when promptly dehumidifying when operation and refrigerating operaton, cold-producing medium along the sequential loop of compressor, outdoor heat converter, reheater, indoor heat converter and when heating operation, cold-producing medium then along and above-mentioned opposite sequential loop.
For this reason, the invention provides a kind of air-conditioner, when dehumidifying operation and refrigerating operaton, cold-producing medium is along compressor, outdoor heat converter, reheater, the sequential loop of indoor heat converter, cold-producing medium edge and above-mentioned opposite sequential loop during heating operation, the 1st electric expansion valve only is housed in the pipeline that is connected between above-mentioned outdoor heat converter and the reheater, the 2nd electric expansion valve only is housed in the pipeline that is connected between above-mentioned reheater and the indoor heat converter simultaneously, when one of the 1st electric expansion valve and the 2nd electric expansion valve standard-sized sheet, control another electric expansion valve and its aperture is increased according to the size of load or reduce.
In addition, the objective of the invention is in above-mentioned air-conditioner, the above-mentioned the 1st and the 2nd electric expansion valve is made of the reversible electric expansion valve respectively.
In addition, the objective of the invention is in above-mentioned air-conditioner, the above-mentioned the 1st and the characteristic of the 2nd electric expansion valve be, it from the traverse of valve plug 0% complete shut-down position, along with the increase of traverse, the aperture of valve increases, and traverse reaches 70% and becomes full-gear when above.
Because the present invention has said structure, so when refrigerating operaton and heating operation, the aperture of the 1st electric expansion valve increases and decreases with the size of load, meanwhile, the aperture of the 2nd electric expansion valve is a standard-sized sheet, and when the dehumidifying operation, the aperture of the 1st electric expansion valve is a standard-sized sheet, meanwhile, the aperture of the 2nd electric expansion valve increases and decreases with the size of load.
Fig. 1 is the system diagram of an embodiment of air-conditioner of the present invention.
Fig. 2 is the profile of the electric expansion valve in the foregoing description.
Fig. 3 is the aperture performance diagram of the electric expansion valve in the foregoing description.
Fig. 4 is the system diagram of existing air-conditioner.
Describe one embodiment of the present of invention in detail below with reference to Fig. 1-Fig. 3.
Fig. 1 is an overall construction drawing of representing to be suitable for air-conditioner of the present invention briefly.Air-conditioner in this example as shown in Figure 1, reversible the 1st electric expansion valve 31 is installed between outdoor heat converter 13 and the reheater 21, and reversible the 2nd electric expansion valve 32 is installed between reheater 21 and the indoor heat converter 26.
Be installed in the pressure sensor 41 in the suction line of compressor 11 and the signal of temperature sensor 42, and be input to the controller 43 from the signal that running status selecting arrangement 44 sends, export to four-port conversion value 12, the 1 electric expansion valves 31 and the 2nd electric expansion valve 32 respectively from the instruction that this controller 43 sends.
Fig. 2 shows the structure of the 1st and the 2nd electric expansion valve 31,32.
As shown in Figure 2, be provided with motor 35 on the top of valve body 34, this motor 35 is made of rotor 35a and stator 35b.By this motor 35 rotation actuate valve stem 36, valve rod 36 is moved up and down by threaded portion 39 guiding, the gap between valve plug 38 that is provided in a side of the valve rod lower end and valve seat 37, is that the aperture of valve is along with increase and decrease.Valve plug 38 is made of inverted cone and the small cylinder that extended by the lower ends downward of this inverted cone.
Secondly, relation between the traverse of the valve plug 38 of electric expansion valve 31,32 and the aperture of valve as shown in Figure 3, when valve plug 38 is positioned at bottom, its traverse is 0%, from this complete shut-down state, along with the increase of traverse, the aperture of valve increases, when the traverse that reaches regulation, for example 70% when above, the aperture of valve reaches maximum full-gear.
Other structure is identical with conventional device shown in Figure 4.
Secondly, if when selecting the dehumidifying operation by running status selecting arrangement 44, four-port conversion value 12 is according to the instruction that comes self-controller 43, convert the state of representing with solid line among Fig. 1 to, the aperture of the 1st electric expansion valve 31 is a standard-sized sheet, the aperture of the 2nd electric expansion valve 32 increases and decreases with the size of load, is keeping the certain degree of superheat of gaseous refrigerant that sucks in the compressor 11.
So the gaseous refrigerant that is compressed by compressor 11 is through behind the outdoor heat converter 13, needn't throttling and, enter reheater 21 by the 1st electric expansion valve 31.Heat release in the process of outdoor heat converter 13 and reheater 21 of flowing through, the liquefy cold-producing medium.This liquid refrigerant enters the 2nd electric expansion valve 32, after this is carried out adiabatic expansion by throttling, is absorbed heat by indoor heat converter 26 and becomes gaseous refrigerant, is inhaled into then in the compressor 11.
In this process, the room air by indoor fan 27 sucks is cooled in the process of indoor heat converter 26 of flowing through, remove moisture simultaneously after, in the process of reheater 21 of flowing through, be heated, send back to indoor again.
When selecting refrigerating operaton, four-port conversion value 12 is the same when moving with dehumidifying, convert the state shown in the solid line among Fig. 1 to, but the aperture of the 2nd electric expansion valve 32 is a full-gear, and the aperture of the 1st electric expansion valve 31 increases and decreases with the size of load.
So, the gaseous refrigerant that is compressed by compressor 11 heat release and liquefy cold-producing medium in outdoor heat converter 13.This liquid refrigerant after carrying out adiabatic expansion, does not add throttling ground by reheater 21 and the 2nd electric expansion valve 32 through 31 throttlings of the 1st electric expansion valve, enters indoor heat converter 26.In the process of reheater 21 and indoor heat converter 26 of flowing through, absorbed heat and the liquefy cold-producing medium, be inhaled into then in the compressor 11.
In this process, the room air by indoor fan 27 sucks is cooled in the process of indoor heat converter 26 and reheater 21 of flowing through respectively, removes moisture simultaneously, becomes the cold air of dehumidifying, sends back to indoor again.
When selecting heating operation, four-port conversion value 12 converts state shown in dotted lines in Figure 1 to, and the aperture of the 2nd electric expansion valve 32 is a standard-sized sheet, and the aperture of the 1st electric expansion valve 31 increases and decreases with the size of load.
So, the gaseous refrigerant that is compressed by compressor 11 indoor heat converter 26 of flowing through, the 2nd electric expansion valve 32 of not flowing through enters reheater 21 with not adding throttling.Heat release in the process of indoor heat converter 26 and reheater 21 of flowing through and liquefy cold-producing medium.This liquid refrigerant flows into the 1st electric expansion valve, after carrying out adiabatic expansion, is become gaseous refrigerant by outdoor heat converter 13 heat absorptions by throttling herein, is inhaled into then in the compressor 11.
In this process, the room air that is sucked by indoor fan 27 is heated in the process of indoor heat converter 26 and reheater 21 of flowing through, become be blown into behind the hot blast indoor.
Therefore, corresponding to various running statuses, the 1st electric expansion valve 31 or the 2nd electric expansion valve 32 of the function that does not need throttling arrangement and had become full-gear, therefore can reduce the flow resistance of the cold-producing medium in the 1st expansion valve 31 or the 2nd expansion valve 32.
If employing the present invention, corresponding to running statuses such as refrigeration, heating, dehumidifying, when not needing throttling function, the the 1st or the 2nd electric expansion valve is a full-gear, can reduce flow resistance, therefore bypass pipe of installing in the existing apparatus and magnetic valve and the check-valves that is contained on the bypass pipe do not need, thereby can reduce cost, and can also improve the reliability of air-conditioner simultaneously.
Claims (3)
1. air-conditioner, when dehumidifying operation and refrigerating operaton, cold-producing medium is along compressor, outdoor heat converter, reheater, the sequential loop of indoor heat converter, cold-producing medium edge and above-mentioned opposite sequential loop during heating operation, it is characterized in that: the 1st electric expansion valve only is housed in the pipeline that is connected between above-mentioned outdoor heat converter and the reheater, the 2nd electric expansion valve only is housed in the pipeline that is connected between above-mentioned reheater and the indoor heat converter simultaneously, when one of the 1st electric expansion valve and the 2nd electric expansion valve standard-sized sheet, control another electric expansion valve and its aperture is increased according to the size of load or reduce.
2. air-conditioner according to claim 1 is characterized in that, the above-mentioned the 1st and the 2nd electric expansion valve is made of the reversible electric expansion valve respectively.
3. air-conditioner according to claim 1, it is characterized in that, the aperture characteristic of the above-mentioned the 1st and the 2nd electric expansion valve is for being the position of 0% complete shut-down from the traverse of valve plug, and aperture increases along with the increase of traverse, becomes full-gear when above when traverse reaches 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94101063A CN1071440C (en) | 1994-01-10 | 1994-01-10 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94101063A CN1071440C (en) | 1994-01-10 | 1994-01-10 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1105440A CN1105440A (en) | 1995-07-19 |
| CN1071440C true CN1071440C (en) | 2001-09-19 |
Family
ID=5030026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94101063A Expired - Fee Related CN1071440C (en) | 1994-01-10 | 1994-01-10 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1071440C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101375114B (en) * | 2006-03-08 | 2010-06-09 | 大金工业株式会社 | Coolant flow divider for freezer heat exchanger |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149168B (en) * | 2006-09-21 | 2010-05-26 | 海尔集团公司 | Temperature-fixing dehumidifying air conditioner control method |
| CN110691950B (en) * | 2017-05-31 | 2021-08-27 | 大金工业株式会社 | Air conditioner |
| CN110469926B (en) * | 2018-05-11 | 2022-05-24 | 开利公司 | Water circulation system for air conditioning system and control method thereof |
| CN110657489B (en) * | 2019-10-25 | 2021-04-13 | 南京天加环境科技有限公司 | Improved dehumidification reheating system and control method thereof |
| CN113551305B (en) * | 2020-04-26 | 2022-08-12 | 海信空调有限公司 | Air conditioner with double heat exchangers and control method thereof |
| CN113137673A (en) * | 2021-03-04 | 2021-07-20 | 青岛海尔空调电子有限公司 | Air conditioner and method and device for controlling dehumidification of air conditioner |
| CN114811862A (en) * | 2022-03-31 | 2022-07-29 | 青岛海尔空调电子有限公司 | Refrigerant system, and control method and control device thereof |
-
1994
- 1994-01-10 CN CN94101063A patent/CN1071440C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101375114B (en) * | 2006-03-08 | 2010-06-09 | 大金工业株式会社 | Coolant flow divider for freezer heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1105440A (en) | 1995-07-19 |
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