CN105020952A - Dynamic and constant-temperature realizing method for high-temperature cooling water - Google Patents
Dynamic and constant-temperature realizing method for high-temperature cooling water Download PDFInfo
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- CN105020952A CN105020952A CN201410159558.4A CN201410159558A CN105020952A CN 105020952 A CN105020952 A CN 105020952A CN 201410159558 A CN201410159558 A CN 201410159558A CN 105020952 A CN105020952 A CN 105020952A
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- water
- temperature
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- water tank
- low temperature
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Classifications
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- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
Abstract
The invention relates to a dynamic and constant-temperature realizing method for high-temperature cooling water, in particular to a high-temperature type water cooling machine product. The high-temperature type water cooling machine product comprises a compressor refrigerating system, a secondary dynamic and constant-temperature control system, a master water pump, a temperature sensing probe and an electric control unit, wherein the compressor refrigerating system comprises a compressor, a condenser, a capillary pipe, an evaporator (a coiled pipe or a plate type heater exchanger), a hot gas bypass valve and a gas-liquid separator, the secondary dynamic and constant-temperature control system comprises two water tanks, a water pump for control, a waterway analog regulating valve and a water return regulating valve, and the electric control unit comprises a PLC and an electric actuator. The dynamic and constant-temperature realizing method is characterized in that the secondary dynamic and constant-temperature control system is provided. The water tanks of the high-temperature type water cooling machine comprise a work water tank and a low-temperature water tank, and the water temperature of the work water tank is regulated through the waterway analog regulating valve (or an electromagnetic valve) so as to achieve a cooling purpose. The high-temperature type water cooling machine can automatically track the water temperature according to the variation of the water temperature.
Description
Technical field
The present invention relates to one
dynamic, the constant temperature implementation method of high-temperature cooling water.Relate to one or rather
high temperature modificationwater cooling unit product.
Background technology
Instrument and equipment can produce heat when running, and needs to be cooled by thermostatted water, to ensure the stability of its work.The heat of thermostatted water absorbing apparatus equipment, water temperature can rise, and water cooling unit is again by the compressor refrigeration system of self, to the water refrigeration in the water tank of water cooling unit, due to the restriction of compressor refrigeration system components and parts, be difficult to the temperature making cycling use of water, the scope that reaches a high temperature (60 DEG C or more).This just needs to adopt the two-stage dynamic, thermostatic control system (two water tanks or two tanks+one water route analog regulation valve (or magnetic valve), controls water pump), and the water temperature of the water tank of guarantee water cooling unit is at high temperature range, and temperature stabilization.
The water cooling unit of current production, because the restriction of compressor refrigeration system components and parts, mostly can only accomplish less than 40 DEG C, cannot realize high temperature and supply water.
The object of the invention is to design a kind of high temperature modification water cooling unit product, meet instrument and equipment, to the requirement of high-temperature water.
Summary of the invention
The object of the present invention is achieved like this,
high temperature modificationwater cooling unit product, comprise compressor refrigeration system,
the two-stage dynamic, thermostatic control system, water tank, water pump, temperature-sensing probe and electric control unit (the electric executive component of PLC+) etc.It is characterized in that having
the two-stage dynamic, thermostatic control system.
Described water route analog regulation valve (or magnetic valve) is connected with described electric control unit, controls its action by electric control unit.
Described temperature-sensing probe is connected with described electric control unit, transmits temperature signal to electric control unit.
Described electric control unit is the electric executive component of PLC+.In embodiment, that presetting apparatus adopts is the S7-200 type PLC that Siemens Company produces.
accompanying drawing explanation
Technology of the present invention is further illustrated below in conjunction with embodiment and accompanying drawing.
Fig. 1 is high temperature modification water cooling unit product refrigeration system principle schematic
high temperature modificationwater cooling unit product, comprise compressor refrigeration system (compressor, condenser, capillary, evaporimeter (coil pipe or plate type heat exchanger), hot gas bypass valve, gas-liquid separator),
the two-stage dynamic, thermostatic control system (double water tank, control water pump, water route analog regulation valve, backwater control valve
),feed pump, temperature-sensing probe and electric control unit (the electric executive component of PLC+) etc.It is characterized in that having
the two-stage dynamic, thermostatic control system.
high temperature modificationbetween the operating water tank of water cooling unit and low temperature water tank, be connected with a water pump, absorb water from operating water tank, water outlet is divided into two tunnels, leads up to water route analog regulation valve (or magnetic valve), and water is fed to low temperature water tank, separately lead up to a backwater control valve, water is turned back to operating water tank.Because water pump is after operating water tank water suction, a part of water is fed to low temperature water tank, and the water level in low temperature water tank rises, water level decreasing in operating water tank, the water at low temperature in low temperature water tank, overflows in operating water tank by dividing plate, make the water temperature drop in operating water tank, reach the object of cooling.
detailed description of the invention
high temperature modificationwater cooling unit product, by the water tank of water cooling unit one piece of dividing plate, is divided into two water tanks.Divider height a little less than tank height, the base of dividing plate and side and water tank airtight.One of them water tank, is set as operating water tank; Another is set as low temperature water tank.The design temperature of operating water tank, for
high temperature modificationthe temperature that water cooling unit requires; The design temperature of low temperature water tank is the temperature of less than 35 DEG C.
The low temperature water tank temperature of water cooling unit is set in less than 35 DEG C by high temperature modification water cooling unit product, to meet the requirement of compressor cooling.Coil pipe selected by the evaporimeter of compressor refrigeration system, and coil pipe is immersed in
high temperature modificationin the low temperature water tank of water cooling unit product, compressor refrigeration system, to the water refrigeration in low temperature water tank, makes the water temperature in low temperature water tank remain on the temperature of less than 35 DEG C.
high temperature modificationwater cooling unit product, between the operating water tank and low temperature water tank of water cooling unit, is connected with a water pump, absorbs water from operating water tank, water outlet is divided into two tunnels, leads up to a water route analog regulation valve, and water is fed to low temperature water tank, separately lead up to a backwater control valve, water is turned back to operating water tank.Because a part of water, after operating water tank water suction, is fed to low temperature water tank, makes the water level in low temperature water tank increase by water pump, water level decreasing in operating water tank, the water at low temperature in low temperature water tank, overflows in operating water tank by dividing plate, make the water temperature drop in operating water tank, reach the object of cooling.The occasion not high to the water temperature required precision of high-temperature cooling water, can not be used alone this water pump, directly the backwater of feed pump is divided into two tunnels, leads up to a water route analog regulation valve, and water is fed to low temperature water tank, and another road water turns back to operating water tank.
high temperature modificationthe electric control unit of water cooling unit product, according to the signal of temperature-sensing probe, dynamically follows the tracks of water temperature variation tendency, adopt pid parameter method, automatic adjustment water route analog regulation valve duty, ensures the stable of operating water tank water temperature, reaches a high temperature, the object of constant temperature water supply.
Such as: for instrument and equipment is for the cooling water of 80.0 DEG C ± 1.0 DEG C.We can be set as 80.0 DEG C operating water tank temperature, water temperature stability ± 1.0 DEG C; The temperature of low temperature water tank is set as 30.0 DEG C, water temperature stability ± 2.0 DEG C.Compressor refrigeration system, to the water refrigeration in low temperature water tank, makes the water temperature in low temperature water tank remain on the temperature of 30 ± 2.0 DEG C.
the two-stage dynamic, thermostatic control systemadopt a water pump, a water route analog regulation valve, regulated the water temperature of operating water tank by mixed water, make the water temperature of operating water tank, be stabilized in the scope of 80.0 DEG C ± 1.0 DEG C.
Instrument and equipment is also different in the caloric value of different operating state, when the caloric value change of instrument and equipment,
high temperature modificationwater cooling unit, by the caloric value of temperature-sensing probe real-time tracking, detecting instrument equipment, dynamically follows the tracks of temperature changing trend, adopts pid parameter method, in time the refrigerating capacity of adjustment water cooling unit, and
the two-stage dynamic, thermostatic control systemduty, suppress the fluctuation of operating water tank water temperature, ensure the stability of operating water tank water temperature.
Claims (12)
1. dynamic, the constant temperature implementation method of a high-temperature cooling water, mainly comprise compressor refrigeration system, the two-stage dynamic, thermostatic control system (two water tanks or two tanks+one water route analog regulation valve (or magnetic valve), control water pump), cycling use of water (water in the water tank of water cooling unit or the tank of water-bath etc.), temperature-sensing probe and electric control unit (the electric executive component of PLC+, or two temperature temp controlled meter+electrically executive component) etc.
2. dynamic, the constant temperature implementation method of high-temperature cooling water is characterized in that: the tank of the water tank of water cooling unit or water-bath, be divided into two water tanks or two tanks.
3., namely in water tank or tank, add one piece of dividing plate, the height of dividing plate a little less than the height of water tank or tank, the base of dividing plate and side and water tank or water bath containment.
4. one of them water tank or tank, is set as operating water tank or work tank; Another water tank or tank, be set as low temperature water tank or low temperature tank.
5. the design temperature of operating water tank or work tank is the temperature that high-temperature cooling water system requires; The design temperature of low temperature water tank or low temperature tank is the temperature of less than 35 DEG C.
6. dynamic, the constant temperature implementation method of high-temperature cooling water is characterized in that: operating water tank or work tank and between low temperature water tank or low temperature tank, be connected with a control water pump, from operating water tank or the water suction of work tank, water outlet is divided into two tunnels, lead up to water route analog regulation valve (or magnetic valve), water is fed to low temperature water tank or low temperature tank, separately leads up to a backwater control valve, water is turned back to operating water tank or work tank.
7. because water pump is after operating water tank or the water suction of work tank, a part of water is fed to low temperature water tank or low temperature tank, water level in low temperature water tank or low temperature tank rises, operating water tank or the water level decreasing worked in tank, water at low temperature in low temperature water tank or low temperature tank, overflow in operating water tank or work tank by dividing plate, make the water temperature drop in operating water tank or work tank, reach the object of cooling.
8. the occasion that the water temperature required precision of pair high-temperature cooling water is not high, this water pump can not be used alone, directly the backwater of feed pump is divided into two tunnels, lead up to water route analog regulation valve (or magnetic valve), water is fed to low temperature water tank or low temperature tank, another road water turns back to operating water tank or work tank.
9. dynamic, the constant temperature implementation method of high-temperature cooling water is characterized in that: the desired temperature of operating water tank or work tank is higher than 40 DEG C, and low temperature water tank or low temperature tank desired temperature are lower than 35 DEG C.
10. the water in low temperature water tank or tank, overflows in operating water tank or tank by dividing plate, and the water temperature drop in operating water tank or tank, reaches the object of cooling.
11. electric control units, according to the signal of temperature-sensing probe, automatically regulate water route analog regulation valve (or magnetic valve) duty, reach a high temperature, the object of constant temperature water supply.
Dynamic, the constant temperature implementation method of 12. high-temperature cooling waters is characterized in that: when the caloric value of instrument and equipment changes, the two-stage dynamic, thermostatic control system, detect in real time according to temperature-sensing probe, dynamic tracking temperature changing trend, adopt pid parameter method, the duty of timely adjustment water route analog regulation valve (or magnetic valve), suppresses the temperature fluctuation of water temperature in operating water tank or work tank, ensures temperature stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410159558.4A CN105020952A (en) | 2014-04-21 | 2014-04-21 | Dynamic and constant-temperature realizing method for high-temperature cooling water |
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| CN201410159558.4A CN105020952A (en) | 2014-04-21 | 2014-04-21 | Dynamic and constant-temperature realizing method for high-temperature cooling water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352139A (en) * | 2015-12-08 | 2016-02-24 | 刘俊声 | Control method of dynamic hydraulic power balancing type terminal fan coil |
| CN105371547A (en) * | 2015-12-02 | 2016-03-02 | 江苏永昇空调有限公司 | Cooling system capable of precisely controlling temperature and flow of cooling liquid |
| CN106196669A (en) * | 2016-08-31 | 2016-12-07 | 中山市汇丰机电科技有限公司 | A kind of double loop oil cooling machine |
| CN111854209A (en) * | 2020-07-08 | 2020-10-30 | 珠海格力电器股份有限公司 | Double-temperature-control cooling system, control method thereof and double-temperature-control cooling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105371547A (en) * | 2015-12-02 | 2016-03-02 | 江苏永昇空调有限公司 | Cooling system capable of precisely controlling temperature and flow of cooling liquid |
| CN105352139A (en) * | 2015-12-08 | 2016-02-24 | 刘俊声 | Control method of dynamic hydraulic power balancing type terminal fan coil |
| CN105352139B (en) * | 2015-12-08 | 2019-08-20 | 刘俊声 | The control method of dynamic hydraulic equilibrium tail-end blower fan coil pipe |
| CN106196669A (en) * | 2016-08-31 | 2016-12-07 | 中山市汇丰机电科技有限公司 | A kind of double loop oil cooling machine |
| CN106196669B (en) * | 2016-08-31 | 2019-01-01 | 中山市汇丰机电科技有限公司 | A kind of double loop oil cooling machine |
| CN111854209A (en) * | 2020-07-08 | 2020-10-30 | 珠海格力电器股份有限公司 | Double-temperature-control cooling system, control method thereof and double-temperature-control cooling machine |
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