GB425876A - Improvements in or relating to air cooling and conditioning apparatus - Google Patents
Improvements in or relating to air cooling and conditioning apparatusInfo
- Publication number
- GB425876A GB425876A GB24937/34A GB2493734A GB425876A GB 425876 A GB425876 A GB 425876A GB 24937/34 A GB24937/34 A GB 24937/34A GB 2493734 A GB2493734 A GB 2493734A GB 425876 A GB425876 A GB 425876A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- coil
- spring
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0411—Refrigeration circuit bypassing means for the expansion valve or capillary tube
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Drying Of Gases (AREA)
Abstract
425,876. Pressure-regulating valves. PAYNE, M., 50, Hook Road, Surbiton, Surrey, and BRITISH THERMOSTAT CO., Ltd., Teddington Works, Windmill Road, Sunbury, Middlesex. Aug. 29, 1934, No. 24937. [Class 135] [See also Group XIII] The temperature and the humidity o: the air in a cham ber are regulated by a refrigerant evap orator coil E the flow of refrigerant liquid to which i; controlled by an expansion valve set to maintain the pres sure in the coil at either of two selec ted values At the higher pressure nc moisture will be separated from the air while at the lower pressure a desirec portion of the mois ture will be deposited as rime on the coil. The expansion valve comprises a casing containing two valves R<1>, R<2>, the operation of each of which is controlled by an adjustable spring 2 disposed in a bellows 3 subjected internally to atmospheric pressure and externally to the pressure in the evaporator coil. The pressure of the spring 2 on the valve R<2> is greater than that of the corresponding spring on the valve R<1>. In the position shown, the flow of refrigerant liquid from the pipe a through the pipe d<2> is cut off by a valve C, controlled, e.g. by an electromagnet S<1> operated through a switch by a humidistat in the chamber, and the refrigerant flows through the pipe d<1> and past the valve R<1>, which is opened by the pressure of the corresponding bellows and spring, into the casing and thence to the evaporator coil in which it vaporizes at a relatively low pressure and temperature so that moisture from the air is deposited thereon. When the moisture content of the air has been sufficiently reduced, the valve C opens and refrigerant liquid passes through both the pipes d<1>, d<2> and past the valves R<1>, R<2> into the casing. The consequent rise of pressure in the coil and the casing contracts the bellows of the valve R<1> which therefore closes; the valve R<2> remains open since it is more heavily loaded by its spring 2 than is the valve R<1>. In this case, the pressure and temperature in the coil will be relatively high and no moisture will be deposited thereon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24937/34A GB425876A (en) | 1934-08-29 | 1934-08-29 | Improvements in or relating to air cooling and conditioning apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24937/34A GB425876A (en) | 1934-08-29 | 1934-08-29 | Improvements in or relating to air cooling and conditioning apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB425876A true GB425876A (en) | 1935-03-22 |
Family
ID=10219633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24937/34A Expired GB425876A (en) | 1934-08-29 | 1934-08-29 | Improvements in or relating to air cooling and conditioning apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB425876A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2193559B (en) * | 1986-02-04 | 1990-10-10 | Eidsmore Paul G | Monitoring of gas-volume in a pressurized reservoir |
EP2064496A2 (en) * | 2006-09-18 | 2009-06-03 | Carrier Corporation | Refrigerant system wtih expansion device bypass |
-
1934
- 1934-08-29 GB GB24937/34A patent/GB425876A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2193559B (en) * | 1986-02-04 | 1990-10-10 | Eidsmore Paul G | Monitoring of gas-volume in a pressurized reservoir |
EP2064496A2 (en) * | 2006-09-18 | 2009-06-03 | Carrier Corporation | Refrigerant system wtih expansion device bypass |
EP2064496A4 (en) * | 2006-09-18 | 2012-05-30 | Carrier Corp | Refrigerant system wtih expansion device bypass |
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