CN2814270Y - Automatic controlling device for cryogen water pump - Google Patents
Automatic controlling device for cryogen water pump Download PDFInfo
- Publication number
- CN2814270Y CN2814270Y CN 200520034583 CN200520034583U CN2814270Y CN 2814270 Y CN2814270 Y CN 2814270Y CN 200520034583 CN200520034583 CN 200520034583 CN 200520034583 U CN200520034583 U CN 200520034583U CN 2814270 Y CN2814270 Y CN 2814270Y
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- water
- refrigerant
- cryogen
- liquid level
- automatic controller
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Abstract
The utility model discloses an automatic controlling device for a cryogen water pump, which comprises an automatic controller, a high position liquid level sensor which is arranged in a water receiving tray for cryogen water, and a low position liquid level sensor, wherein the high position liquid level sensor checks the high water-level signal of the cryogen water in the water receiving tray and transmits the high water-level signal to the automatic controller, and the automatic controller sends out an instruction to start the cryogen water pump; the low position liquid level sensor checks the low water-level signal of the cryogen water in the water receiving tray and transmits the water receiving tray to the automatic controller, and the automatic controller sends out an instruction to stop the cryogen water pump. The utility model has the advantage that the starting or the stopping of the cryogen water pump can be controlled by checking the height of the cryogen liquid level in the water receiving tray, which avoids the idle rotation of the cryogen water pump or the energy source waste of the cryogen water in the process of evaporation, reduces the working load of the cryogen water pump and is favorable for the stable operation of the whole machine set.
Description
Technical field
The utility model relates to the automaton of double effect absorption lithium bromide refrigerating unit, particularly refrigerant pump.
Background technology
Double effect absorption lithium bromide refrigerating unit mainly comprises 7 heat-exchange apparatus, that is: condenser, evaporimeter, high-temperature generator, cryogenerator, high-temperature heat exchanger, low temperature heat exchanger, absorber.And other parts such as throttling arrangement, solution pump, refrigerant pump, evaporimeter heat exchanger tube, water as refrigerant shower, refrigerant pump shower, water as refrigerant drip tray, they form two circulation loops: water as refrigerant circulation and lithium-bromide solution circulation.
The water as refrigerant circulation is made up of condenser, evaporimeter, throttling arrangement, refrigerant pump, evaporimeter heat exchanger tube, water as refrigerant shower, refrigerant pump shower, water as refrigerant drip tray.The high-pressure steam that is produced by high-temperature generator, cryogenerator enters evaporimeter, and carries out spraying and sprinkling evaporation by the water as refrigerant shower after heat release is condensed into water as refrigerant in condenser after throttling arrangement decompression cooling.In this process, water as refrigerant is vaporizated into low pressure cryogen water vapour, the heat of drawing cooling medium in the evaporimeter heat exchanger tube simultaneously produces refrigeration effect, the water as refrigerant that is not in time evaporated is then collected by the water as refrigerant drip tray, and pump into the refrigerant pump shower by refrigerant pump, in evaporimeter, participate in simultaneously spraying and sprinkling evaporation, to strengthen heat exchange.
The lithium-bromide solution circulation mainly is made up of high-temperature generator, cryogenerator, high-temperature heat exchanger, low temperature heat exchanger, absorber and solution pump.In absorber, bromize lithium concentrated solution from high-temperature heat exchanger and low temperature heat exchanger absorbs the low pressure cryogen water vapour formation bromize lithium dilute solution that evaporimeter produces, to keep the low pressure in the evaporimeter, make water as refrigerant continuous evaporation in evaporimeter carry out heat exchange.The bromize lithium dilute solution that forms then after solution pump boosts parallel connection enter high-temperature heat exchanger and low temperature heat exchanger, at this heat exchange taking place with the bromize lithium concentrated solution from high-temperature generator and cryogenerator respectively, and then enters high-temperature generator and cryogenerator respectively.This bromize lithium dilute solution is heated, seethes with excitement in high-temperature generator and cryogenerator, and wherein low-boiling water as refrigerant is vaporized into high pressure cryogen water vapour to be separated with the bromize lithium concentrated solution of remainder.High pressure cryogen water vapour condensation liquefaction in condenser, bromize lithium concentrated solution then enter high-temperature heat exchanger and low temperature heat exchanger respectively and carry out heat exchange, and then return absorber and absorb low pressure cryogen water vapour and circulate once more.
Existing double effect absorption lithium bromide refrigerating unit is in above two cyclic processes, refrigerant pump is in operating condition always, even the water as refrigerant liquid level in the water as refrigerant drip tray in evaporimeter is crossed low or when not having water as refrigerant, refrigerant pump still continues in running, caused the unsaturated running or the idle running of refrigerant pump thus, the safe and stable operation of unit has been caused great influence.
The utility model content
Technical problem to be solved in the utility model provides a kind ofly can control the automaton of the running status of refrigerant pump in the unit effectively, thereby helps the stable operation of unit.
The technical scheme that its technical problem that solves the utility model adopts is: the automaton of refrigerant pump of the present utility model comprises automatic controller and is arranged on water as refrigerant drip tray interior high-order liquid level sensor, low level liquid level sensor, wherein: detect in the drip tray water as refrigerant high water level signal and be sent to automatic controller by high-order liquid level sensor, send instruction by automatic controller and start the refrigerant pump operation; Detect in the drip tray water as refrigerant low water level signal and be sent to automatic controller by the low level liquid level sensor, send instruction by automatic controller and stop the refrigerant pump operation
In technique scheme, described automatic controller can obtain the controller of widespread in adopting industrial automation control field, as computer industrial computer, programmable controller (PLC) etc.Because programmable controller has advantages such as summary, miniaturization, reliability height, Installation and Debugging convenience, therefore described automatic controller can preferably adopt programmable controller.
The beneficial effects of the utility model are, by detecting the height of water as refrigerant liquid level in the water as refrigerant drip tray, starting or stoping of the operation of control refrigerant pump, the idle running of refrigerant pump or the waste of water as refrigerant energy in evaporation process have been avoided, reduce the live load of refrigerant pump, helped the stable operation of whole unit.
Description of drawings
This specification comprises following two width of cloth accompanying drawings:
Fig. 1 is the operation conditions schematic diagram of existing refrigerant pump;
Fig. 2 is the composition and the operation conditions schematic diagram of the utility model refrigerant pump automaton.
Parts, position and numbering among the figure:
Evaporimeter 1, water as refrigerant shower 2, refrigerant pump shower 3, evaporimeter heat exchanger tube 4, water as refrigerant drip tray 5, refrigerant pump 6, automatic controller 7, high-order liquid level sensor 8, low level liquid level sensor 9.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the operation conditions schematic diagram of existing refrigerant pump.As shown in the drawing, the high-pressure steam that is produced by high-temperature generator, cryogenerator enters evaporimeter 1, and carries out spraying and sprinkling evaporation by water as refrigerant shower 2 after heat release is condensed into water as refrigerant in condenser after throttling arrangement decompression cooling.In this process, water as refrigerant is vaporizated into low pressure cryogen water vapour, the heat of cooling medium produces refrigeration effect in the evaporimeter heat exchanger tube 4 simultaneously, the water as refrigerant that is not in time evaporated is then collected by water as refrigerant drip tray 5, and pump into refrigerant pump shower 3 by refrigerant pump 6, simultaneously in evaporimeter 1, participate in spraying and sprinkling evaporation, to strengthen heat exchange.As can be seen from the figure, refrigerant pump 6 is in operating condition always, even the water as refrigerant liquid level in water as refrigerant drip tray 5 is crossed low or when not having water as refrigerant, refrigerant pump 6 still continues in running, caused the unsaturated running or the idle running of refrigerant pump 6 thus, the safe and stable operation of unit has been caused great influence.
Fig. 2 is the composition and the operation conditions schematic diagram of the utility model refrigerant pump automaton.As shown in the drawing, refrigerant pump automaton automatic controller 7 of the present utility model, high-order liquid level sensor 8, low level liquid level sensor 9 are formed.High-order liquid level sensor 8 is installed in water as refrigerant drip tray 5 tops, its detection head is a little less than water as refrigerant drip tray 5 tops, then near the bottom of water as refrigerant drip tray 5, automatic controller 7 is connected with high-order liquid level sensor 8, low level liquid level sensor 9 and refrigerant pump 6 respectively by signal connecting line the detection head of low level liquid level sensor 9.In lithium bromide refrigerating unit running, when the cryogen water level in the agent water drip tray 5 was higher than high-order liquid level sensor 8 detection head positions, then refrigerant pump 6 was begun to start by automatic controller 7 controls, water as refrigerant is pumped into refrigerant pump shower 3 participate in spray; In refrigerant pump 6 runnings, if the cryogen liquid level drops to when being lower than low level liquid level sensor 9 detection head positions, low level liquid level sensor 9 will hang down liquid level signal automatic controller 7, and automatic controller 7 control refrigerant pumps 6 are out of service.So move in circles, both avoided the idle running of refrigerant pump 6 or the waste of water as refrigerant energy in evaporation process, reduced the live load of refrigerant pump 6 again, thereby helped the stable operation of whole unit.
Described automatic controller can obtain the controller of widespread in adopting industrial automation control field, as computer industrial computer, programmable controller (PLC) etc.Because programmable controller has advantages such as summary, miniaturization, reliability height, Installation and Debugging convenience, therefore described automatic controller preferably adopts programmable controller.
It is to be noted, above the described principles more of the present utility model that just explain through diagrams, because the those of ordinary skill to constructed field is easy to carry out on this basis some modifications and change, therefore this specification be not be the utility model to be confined to shown in and in the described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (2)
1, a kind of automaton of refrigerant pump is characterized in that: it comprises automatic controller (7) and is arranged on high-order liquid level sensor (8), low level liquid level sensor (9) on the water as refrigerant drip tray (5), wherein:
Detect drip tray (5) interior water as refrigerant low water level signal and be sent to automatic controller (7) by low level liquid level sensor (9), send instruction by automatic controller (7) and start refrigerant pump (6) operation;
Detect drip tray (5) interior water as refrigerant high water level signal and be sent to automatic controller (7) by high-order liquid level sensor (8), send instruction by automatic controller (7) and stop refrigerant pump (6) operation.
2, a kind of automaton of refrigerant pump is characterized in that: what described automatic controller (7) adopted is Programmable Logic Controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034583 CN2814270Y (en) | 2005-06-23 | 2005-06-23 | Automatic controlling device for cryogen water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034583 CN2814270Y (en) | 2005-06-23 | 2005-06-23 | Automatic controlling device for cryogen water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814270Y true CN2814270Y (en) | 2006-09-06 |
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ID=36949357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520034583 Expired - Fee Related CN2814270Y (en) | 2005-06-23 | 2005-06-23 | Automatic controlling device for cryogen water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814270Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265612A (en) * | 2014-08-07 | 2015-01-07 | 珠海格力电器股份有限公司 | Water pump control method |
-
2005
- 2005-06-23 CN CN 200520034583 patent/CN2814270Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265612A (en) * | 2014-08-07 | 2015-01-07 | 珠海格力电器股份有限公司 | Water pump control method |
| CN104265612B (en) * | 2014-08-07 | 2016-03-02 | 珠海格力电器股份有限公司 | Water pump control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 Termination date: 20120623 |