CN2687434Y - Self-control injection valve - Google Patents
Self-control injection valve Download PDFInfo
- Publication number
- CN2687434Y CN2687434Y CN 03279006 CN03279006U CN2687434Y CN 2687434 Y CN2687434 Y CN 2687434Y CN 03279006 CN03279006 CN 03279006 CN 03279006 U CN03279006 U CN 03279006U CN 2687434 Y CN2687434 Y CN 2687434Y
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- injection valve
- compressor
- valve
- self
- temperature
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Abstract
The utility model relates to the control device of the air exhaust temperature of the compressor for cooling air conditioning system. A self-control injection valve consists of an injection valve consisting of a power house, a valve body, a valve base, a valve needle, an adjusting rod base, gland packing, a valve cap, an adjusting rod, a gland cover, a filtering net, and nuts on the inlet and the outlet. The utility model is characterized in that: the upper part of the injection valve is provided with an elastic metallic diaphragm; the top of the injection valve is provided with a nut cap; a cavity is provided between the nut cap and the elastic metallic diaphragm, and is connected to a temperature-sensing bag through a capillary pipe which passes through the nut cap; the interior of the temperature-sensing bag is filled with high boiling point actuating medium. The utility model can automatically open and automatically control the open degree of the valve according to the temperature of the air exhaust outlet (pipe) of the compressor; the compressor is cooled by being injected the two-phase flow liquid having low temperature and low pressure onto the air inlet of the compressor, and accordingly, the air exhaust temperature of the compressor is decreased.
Description
Technical field
The utility model relates to a kind of compressor exhaust temperature control gear of refrigeration air-conditioner.
Background technique
Compressor is a vitals in the refrigerating air conditioning device, normally moves and prolongs its service life in order to guarantee compressor, and in general, the delivery temperature of compressor should be not too high.If compressor exhaust temperature is too high, cause the damage of the rotten and machine of lubricant oil easily.Cause that the high factor of compressor exhaust temperature comprises that the refrigeration compressor pressure ratio is too high, evaporating temperature is low excessively, condensing temperature is too high, refrigeration working medium does not match etc.
Spraying cooling method is a kind of comparatively practical method that reduces delivery temperature.The basic principle of the method is: add a secondary circuit that is used to reduce compressor exhaust temperature in the refrigerated air-conditioning system of being made up of compressor, condenser, throttle valve, vaporizer, in the refrigeration air-conditioner circulation loop, major part in the working medium of device condensation of being condensed enters throttle valve, throttling becomes the working medium of low-temp low-pressure, this working medium is absorbed heat in vaporizer, is evaporated, after sucked by compressor again, finish refrigeration air-conditioner circulation.The condensed sub-fraction liquid working substance of the device that is condensed is through throttling arrangement (as expansion valve, capillary tube etc.), throttling becomes the two phase flow working medium of low-temp low-pressure, low-temp low-pressure working medium directly enters compressor, heat absorption in compressor, evaporation, thus reduced compressor exhaust temperature.
Spraying one of cooling subtraction unit is in the refrigeration air-conditioner loop that compressor, condenser, throttle valve, vaporizer are formed, and adds a delivery temperature control loop of being made up of expansion valve and electromagnetic methods, referring to Fig. 3.The outlet of expansion valve is at the suction port place of compressor, the expansion valve inlet connects solenoid valve, electromagnetic valve entrance connects the output terminal of condenser, the control loop of solenoid valve is controlled by the heat responsive element that is contained on the exhaust outlet of compressor (pipe), when relief opening (pipe) temperature height during to setting value, control electromagnetic valve is opened, and highly pressurised liquid sprays into compressor inlet after the expansion valve throttling, low-temp low-pressure working medium is absorbed heat in compressor, is evaporated, thereby has reduced the delivery temperature of compressor.The defective of this device is a system complex, and solenoid valve and heat responsive element are arranged, the cost height.Referring to Fig. 4, another kind of device is in the refrigeration air-conditioner loop that compressor, condenser, throttle valve, vaporizer are formed, add a delivery temperature control loop of forming by capillary tube, in this delivery temperature control loop, the output terminal of condenser inserts the capillary tube input end, capillary tube output termination compressor inlet, and the liquid of High Temperature High Pressure becomes the two phase flow working medium of low-temp low-pressure behind capillary-compensated, working medium is absorbed heat after entering compressor, evaporation, thereby has reduced compressor exhaust temperature.The defective of this device is can not be according to the temperature of relief opening (pipe), the emitted dose of regulated at will liquid working substance, and delivery temperature can only reduce, and can not control.
Summary of the invention
The utility model has overcome defective of the prior art, a kind of self-controlled type injection valve is provided, this self-controlled type injection valve can be opened automatically according to the temperature on the exhaust outlet of compressor (pipe), the autocontrol valve open degree, spray low-temp low-pressure two phase flow working medium and compressor is cooled off, thereby reduce delivery temperature to compressor inlet.The control of this injection valve is simple, and delivery temperature can be controlled arbitrarily.
The utility model is achieved in that a kind of self-controlled type injection valve, comprise the injection valve of forming by power house, valve body, valve seat, needle, adjusting pole socket, filler, bonnet, adjustable lever, Gland, filter screen, import and export nut, it is characterized in that the elastic metallic diaphragm being housed on injection valve top, block is equipped with at the injection valve top, between block and the elastic metallic diaphragm cavity is arranged, the capillary tube of cavity through passing block connects bulb, is fed into higher boiling working medium in the bulb.
Above-mentioned self-controlled type injection valve, described self-controlled type injection valve is connected in the refrigerated air-conditioning system of being made up of compressor, condenser, throttle valve, vaporizer, be used for the control of compressor exhaust temperature, the output of self-controlled type injection valve connects the compressor input end, self-controlled type injection valve input termination condenser output terminal, self-controlled type injection valve bulb is connected on the exhaust outlet of compressor (pipe).
The injection valve working principle is as follows: in loop shown in Figure 2, elastic metallic diaphragm 15 tops in the injection valve are subjected to the effect of power pressure in the bulb, are subjected to the effect of refrigerant pressure and spring force below.Diaphragm is heaved under the effect of these three power up or down, thus valve opening is turned down or open big, in order to regulate the liquid supply rate of injection valve.Power pressure in the bulb is relevant with the working medium temperature, and the working medium temperature is high more, and power pressure is also just high more, and bulb is fixed on the exhaust outlet of compressor (pipe), thereby the delivery temperature of compressor is high more, and power pressure is big more in the bulb.When compressor exhaust temperature reduces, pressure in the injection valve bulb descends, diaphragm top pressure is less than below pressure, so diaphragm 15 upwards shrinks, thereby driving needle 5 boosts, injection valve is turned down, enter the also corresponding minimizing of emitted dose of compressor, compressor exhaust temperature will rise.Otherwise, when compressor exhaust temperature rises, pressure in the injection valve bulb rises, diaphragm top pressure is greater than below pressure, so diaphragm 15 bloats downwards, thereby needle 5 is backed down downwards, and injection valve is left greatly, enter the also corresponding increase of emitted dose of compressor, compressor exhaust temperature descends.This valve can also pass through adjustable lever 9, and the pretightening force of adjusting the valve medi-spring is adjusted the setting value of delivery temperature control.
Working principle of the present utility model is by being contained in the bulb of exhaust outlet of compressor (pipe), detect the temperature on the relief opening (pipe), when temperature raises, automatically open atomizing of liquids to compressor inlet with the injection valve that bulb connects together, liquid absorbs heat in compressor, evaporates, thereby has reduced the delivery temperature of compressor.The self-controlled type injection valve adopts existing inner equilibrium formula thermal expansion valve arrangement, but through the transformation of the way, with the working medium emptying in the inner equilibrium formula heating power expansion valve bulb and vacuumize, is fed into high boiling working medium then, as water, alcohol etc.Place exhaust outlet of compressor (pipe) to locate bulb, by the work of bulb control injection valve.
The utility model is compared with existing capillary-compensated technology, and its advantage is can be according to compressor exhaust temperature to the control that automatically adjusts of system cools spouting liquid; Compare with existing heating power expansion valve throttling technology, saved heat responsive element and solenoid valve, reduced cost.
The too high problem of delivery temperature when using HCFC22 instead that the utility model can solve the refrigeration system of using CFC12 is to realize substituting of CFC; Can solve the desert air-conditioning keeps the normal operation of air-conditioning unit under the too high environment of condensing temperature a difficult problem; Can use single stage compression or multistage refrigerating plant to realize lower evaporating temperature.
Description of drawings
Fig. 1 is the utility model self-controlled type injection valve structural representation, and Fig. 2 is a self-controlled type injection valve connection diagram, and Fig. 3 is existing expansion valve and solenoid valve connection diagram, and Fig. 4 is existing capillary tube connection diagram.
Among the figure: 1 power house, 2 valve bodies, 3 air outlet nuts, 4 valve seats, 5 needles, 6 regulate pole socket, 7 fillers, 8 bonnets, 9 adjustable levers, 10 Glands, 11 bulb, 12 filter screens, 13 suction port nuts, 14 capillary tubies, 15 elastic metallic diaphragms, 16 throttle valve, 17 vaporizers, 18 compressors, 19 condensers, 20 expansion valves, 21 solenoid valves, 22 self-controlled type injection valves, 23 capillary tubies.
Embodiment
Provide a better embodiment of the present utility model below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, a kind of self-controlled type injection valve 22, comprise the injection valve of forming by power house 1, valve body 2, valve seat 4, needle 5, adjusting pole socket 6, filler 7, bonnet 8, adjustable lever 9, Gland 10, filter screen 12, inlet, outlet nut 13,3, on injection valve top elastic metallic diaphragm 15 is housed, block is equipped with at the injection valve top, between block and the elastic metallic diaphragm 15 cavity is arranged, the capillary tube 14 of cavity through passing block connects bulb 11, is fed into higher boiling working medium after being evacuated in the bulb 11.Higher boiling working medium in the bulb 11 is water or alcohol, and the boiling point of water is about 100 ℃, and the boiling point of alcohol is about 80 ℃.
Self-controlled type injection valve 22 is connected in the refrigerated air-conditioning system of being made up of compressor 18, condenser 19, throttle valve 16, vaporizer 17 etc., be used for the control of compressor 18 delivery temperatures, 22 outputs of self-controlled type injection valve connect compressor 18 input ends, self-controlled type injection valve 22 input termination condensers 19 output terminals, self-controlled type injection valve 22 bulb 11 are connected on compressor 18 relief openings (pipe).
Claims (2)
1. self-controlled type injection valve, comprise the injection valve of forming by power house, valve body, valve seat, needle, adjusting pole socket, filler, bonnet, adjustable lever, Gland, filter screen, import and export nut, it is characterized in that the elastic metallic diaphragm being housed on injection valve top, block is equipped with at the injection valve top, between block and the elastic metallic diaphragm cavity is arranged, the capillary tube of cavity through passing block connects bulb, is fed into higher boiling working medium in the bulb.
2. self-controlled type injection valve according to claim 1, it is characterized in that the self-controlled type injection valve is connected in the refrigerated air-conditioning system of being made up of compressor, condenser, throttle valve, vaporizer, the output of self-controlled type injection valve connects the compressor input end, self-controlled type injection valve input termination condenser output terminal, self-controlled type injection valve bulb is connected on the exhaust outlet of compressor (pipe).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03279006 CN2687434Y (en) | 2003-09-29 | 2003-09-29 | Self-control injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03279006 CN2687434Y (en) | 2003-09-29 | 2003-09-29 | Self-control injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687434Y true CN2687434Y (en) | 2005-03-23 |
Family
ID=34661290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03279006 Expired - Fee Related CN2687434Y (en) | 2003-09-29 | 2003-09-29 | Self-control injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687434Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563944A (en) * | 2012-01-19 | 2012-07-11 | 天津商业大学 | Ejector with automatic adjustment of ejecting flow and refrigerating system comprising same |
| CN102889641A (en) * | 2012-09-12 | 2013-01-23 | 青岛海信日立空调系统有限公司 | Air conditioner used in high-temperature environment and control method |
| CN105628231A (en) * | 2015-12-23 | 2016-06-01 | 太原航空仪表有限公司 | Process method applied to temperature sensor-relay |
| CN106225339A (en) * | 2016-08-24 | 2016-12-14 | 常州市武进南夏墅苏南锻造有限公司 | Outer balanced type heating power expansion valve |
| CN112146238A (en) * | 2020-09-26 | 2020-12-29 | 陈雨豪 | Air conditioner temperature controller with intelligent self-adaption function |
-
2003
- 2003-09-29 CN CN 03279006 patent/CN2687434Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563944A (en) * | 2012-01-19 | 2012-07-11 | 天津商业大学 | Ejector with automatic adjustment of ejecting flow and refrigerating system comprising same |
| CN102889641A (en) * | 2012-09-12 | 2013-01-23 | 青岛海信日立空调系统有限公司 | Air conditioner used in high-temperature environment and control method |
| CN105628231A (en) * | 2015-12-23 | 2016-06-01 | 太原航空仪表有限公司 | Process method applied to temperature sensor-relay |
| CN105628231B (en) * | 2015-12-23 | 2018-09-21 | 太原航空仪表有限公司 | Apply a kind of process in temperature sensor-relay |
| CN106225339A (en) * | 2016-08-24 | 2016-12-14 | 常州市武进南夏墅苏南锻造有限公司 | Outer balanced type heating power expansion valve |
| CN112146238A (en) * | 2020-09-26 | 2020-12-29 | 陈雨豪 | Air conditioner temperature controller with intelligent self-adaption function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |