DE856600C - Control device for the refrigerant supply to the evaporator - Google Patents
Control device for the refrigerant supply to the evaporatorInfo
- Publication number
- DE856600C DE856600C DER1689D DER0001689D DE856600C DE 856600 C DE856600 C DE 856600C DE R1689 D DER1689 D DE R1689D DE R0001689 D DER0001689 D DE R0001689D DE 856600 C DE856600 C DE 856600C
- Authority
- DE
- Germany
- Prior art keywords
- evaporator
- control device
- control valve
- refrigerant supply
- refrigerant
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
Bei automatischen Kühlanlagen sind Regeleinrichtungen bekannt, die bei einer einmal eingestellten Temperatur eine gleichmäßige Versorgung des Verdampfers mit dem Kältemittel gewährleisten. Diese Anlagen arbeiten bei gleichbleibenden oder wenig wechselnden Temperaturen im allgemeinen befriedigend. Sie versagen jedoch, wenn man sie bei den neuerdings entwickelten Prüfschränken für Weaseltemperaturen verwenden will lei denen Temperaturen von -I- roo bis - toö° erzeugt werden sollen. Es ist bei derartigen Anlagen nicht möglich, durch das übliche Regelventil, das vielfach als Schwimmerventil ausgebildet ist, den Verdampfer gleichmäßig mit Kältemitteln zu versehen.In automatic cooling systems, control devices are known that once the temperature has been set, the evaporator is supplied evenly with the refrigerant. These systems work at constant or little changing temperatures generally satisfactory. However, they fail if you look at the recently developed test cabinets for weasel temperatures want to use lei where temperatures from -I- roo to - toö ° are to be generated. With such systems it is not possible to use the usual control valve, the is often designed as a float valve, the evaporator evenly with refrigerants to provide.
Um auch für derartige Prüfschränke eine gute Ausnutzung des Verdampfers bei befriedigendem Wirkungsgrad des Kompressors zu erreichen, wird erfindungsgemäß ein zweites Regelventil vorgesehen. Dieses Regelventil liegt in einer das übliche Regelventil umgehenden Leitung, zwischen Kondensator und Verdampfer und kann von Hand oder automatisch teilweise oder ganz geschlossen werden, wenn die Temperatur des vom Verdampfer zum Kompressor strömenden Kältemittels unter den gewünschten Wert sinkt.In order to make good use of the evaporator for such test cabinets To achieve a satisfactory efficiency of the compressor, is according to the invention a second control valve is provided. This control valve is in one of the usual ones Control valve bypassing line, between condenser and evaporator and can from Hand or automatically be partially or fully closed when the temperature of the refrigerant flowing from the evaporator to the compressor is below the desired Value goes down.
In der Zeichnung ist ein Ausführungsbeispiel der Regelvorrichtung schematisch dargestellt. Das vom Kondensator kommende Kältemittel strömt durch die Leitung a über das übliche Regelventil b zu dem Verdampfer c und von dort durch die Leitung d zum Kompressor. Erfindungsgemäß ist nun eine Umgehungsleitung e vorgesehen, in der ein weiteres Regelventil f angeordnet ist. Das Regelventil (wird zweckmäßig durch einen Temperaturfühler g gesteuert, der an der zum Kompressor führenden Leitung d angebracht ist.In the drawing, an embodiment of the control device is shown schematically. The refrigerant coming from the condenser flows through line a via the usual control valve b to evaporator c and from there through line d to the compressor. According to the invention, a bypass line e is now provided, in which a further control valve f is arranged. The control valve ( is expediently controlled by a temperature sensor g, which is attached to the line d leading to the compressor.
Bei hohen Temperaturen im Verdampfer ist das Regelventil f geöffnet, so daß dem Verdampfer eine möglichst große Kältemittelmenge zuströmen kann. Sinkt jedoch die Temperatur im Verdampfer, so wird durch den Temperaturfühler g das Ventil f mehr oder weniger geschlossen. -Man wird das Ventil f so einstellen, daß kein Kältemittel mehr hindurchtritt, wenn .zu befürchten ist, daß flüssiges Kältemittel aus dem Verdampfer zum Kompressor überströmen 'kann. In diesem Fall wird der Kältemittelzufluß zum Verdampfer ausschließlich durch das Ventil b geregelt.At high temperatures in the evaporator, the control valve f is open, so that the largest possible amount of refrigerant can flow to the evaporator. Sinks however the temperature in the evaporator, the valve is controlled by the temperature sensor g f more or less closed. -The valve f will be adjusted so that no More refrigerant passes if there is a risk that liquid refrigerant can overflow from the evaporator to the compressor '. In this case, the refrigerant inflow to the evaporator regulated exclusively by valve b.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER1689D DE856600C (en) | 1940-01-10 | 1940-01-10 | Control device for the refrigerant supply to the evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER1689D DE856600C (en) | 1940-01-10 | 1940-01-10 | Control device for the refrigerant supply to the evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE856600C true DE856600C (en) | 1952-11-24 |
Family
ID=7395651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DER1689D Expired DE856600C (en) | 1940-01-10 | 1940-01-10 | Control device for the refrigerant supply to the evaporator |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE856600C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2306475A1 (en) * | 1975-04-03 | 1976-10-29 | Multifluid En | Antifrosting device for heat pump evaporator - uses frosting detector to control valve adjusting heat exchanger bypass control |
| FR2590006A1 (en) * | 1985-11-13 | 1987-05-15 | Bernier Jacques | HEAT PUMP |
| DE4238531A1 (en) * | 1992-11-14 | 1994-02-03 | Danfoss As | Expansion valve for refrigeration circuit evaporator - uses at least one setting valve and ON-OFF valves in parallel between input and output connections |
-
1940
- 1940-01-10 DE DER1689D patent/DE856600C/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2306475A1 (en) * | 1975-04-03 | 1976-10-29 | Multifluid En | Antifrosting device for heat pump evaporator - uses frosting detector to control valve adjusting heat exchanger bypass control |
| FR2590006A1 (en) * | 1985-11-13 | 1987-05-15 | Bernier Jacques | HEAT PUMP |
| WO1987003072A1 (en) * | 1985-11-13 | 1987-05-21 | Axergie | Heat pump |
| DE4238531A1 (en) * | 1992-11-14 | 1994-02-03 | Danfoss As | Expansion valve for refrigeration circuit evaporator - uses at least one setting valve and ON-OFF valves in parallel between input and output connections |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE856600C (en) | Control device for the refrigerant supply to the evaporator | |
| DE594280C (en) | Circulation heating with a hot and a cold liquid circuit and with automatic temperature control of the heating power | |
| DE1019792B (en) | Heat pump system with hot water pressure storage | |
| DE671115C (en) | Thermostatically controlled mixing valve | |
| DE577447C (en) | Cooling system with centrifugal compressor | |
| DE722899C (en) | Cooling system | |
| DE674780C (en) | Device for rapid reheating of lubricating oil in internal combustion engines | |
| DE676920C (en) | Device for the rapid regulation and commissioning of thermal power plants | |
| DE593690C (en) | Hot water heating system with a circulation pump and with displacement heat storage | |
| DE537643C (en) | Throttle device in the water supply line of automatic hot water heaters | |
| DE515117C (en) | Periodically acting absorption refrigeration machine | |
| DE826299C (en) | Hot steam cooler with changeable cooling surface and condensation of the coolant in the cooler | |
| DE615266C (en) | Regulation of the steam supply to a heat storage tank in a steam power plant with a low-pressure consumer network | |
| DE677301C (en) | Device for the repair of pressurized water pipe taps | |
| DE479670C (en) | Absorption refrigerator | |
| DE419720C (en) | Absorption refrigeration machine | |
| DE598956C (en) | Small refrigeration system | |
| DE365980C (en) | Process for cooling gases | |
| DE2633100A1 (en) | Heat pump for hot water supply - pref. uses domestic waste water as heat source | |
| DE840247C (en) | Umfuehrungs- and shut-off device for steam water drain | |
| DE533020C (en) | Method and device for the automatic control of high-speed evaporators | |
| DE748066C (en) | Liquid heater with two or more draw-off points with different outlet temperatures | |
| DE588099C (en) | Sectional boiler with a device to bring about different temperatures in the boiler parts | |
| AT200078B (en) | Dosing device | |
| DE102014116437B3 (en) | Heat pump apparatus |