CN109028408A - Central air-conditioning cooling, chilled water intelligent heat-exchange device systems - Google Patents
Central air-conditioning cooling, chilled water intelligent heat-exchange device systems Download PDFInfo
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- CN109028408A CN109028408A CN201810932618.XA CN201810932618A CN109028408A CN 109028408 A CN109028408 A CN 109028408A CN 201810932618 A CN201810932618 A CN 201810932618A CN 109028408 A CN109028408 A CN 109028408A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- 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
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of central air-conditioning coolings, chilled water intelligent heat-exchange device systems, and the system comprises PLC electrical control starting cabinet and the cold station air conditioning water system of air conditioning water system, B, plate heat exchanger and the electronic proportional integration valves at the cold station A connected to it；The plate heat exchanger is arranged on the chilled water main pipeline at the cold station A or the cold station B, and heat exchange amount is equal with the cold station refrigeration duty of B；The PLC electrical control starts cabinet according to the start and stop of the energy adjustment and water pump A and water pump B of terminal requirements automatic control host machine A and host B, while controlling the flow of water pump A and water pump B by frequency converter A and frequency converter B according to the aperture of electronic proportional integration valve.The problem of to solve in the prior art, the unit big for freezing load amount lacks spare unit and unit frequent start-stop lesser for load, causes energy waste.
Description
Technical field:
The present invention relates to the technical fields of air conditioner heat exchange equipment, and in particular to a kind of central air-conditioning freezing water central air-conditioning is cold
But, chilled water intelligent heat-exchange equipment unit.
Background technique:
There is cavity to cause current energy conservation and environmental protection being the world today in energy shortage, in short supply, environmental pollution, atmospheric ozone
On one of main problem most in the urgent need to address.With the continuous progress of science and technology, the continuous improvement of human living standard improves
Living and working environment improves comfort level, improves working efficiency, is a kind of pursuit modernized now.Air-conditioning be make the life better and
With one of a kind of requisite measure for improving working environment
Company's air-conditioning system is equipped with the cold station of air conditioning water due to more distributions of workshop at A and B respectively, independent
Operation, respectively A/B technique freezing and air conditioner refrigerating provide 7 DEG C of water outlet, 12 DEG C of return water of chilled water cold source.A and B air-conditioning
System meets the needs of workshop is to cold water individually opening cooling-water machine on ordinary days, and there are 3 1650KW units at the cold station A, freezing
Workload demand is bigger, and when Load in Summer is high, unit wants full load to run, can be to A just in case breaking down without spare unit
The production in workshop affects；And the cooling capacity of B demand is little, 1 1230KW unit, unit load very little, frequent start-stop, causes
Unit is not energy-efficient and failure rate increases, and is a bigger waste to the energy.Utility model CN203964267U discloses one
Kind central air-conditioning Auto-matching load energy conserving system, including cold water main unit, cooling tower, cooling-water temperature sensor, room conditioning
The electronic proportional integration valve of end-equipment, chilled water, cooling tower water inlet motor-driven valve, intelligent control device, air conditioning control device, freezing
Water temperature sensor, chilled water motor-driven valve, chilled water flow quantity sensor and cooling water motor-driven valve, cooling water motor-driven valve, cooling
Water temperature sensor is set on Cooling Water route, and chilled water temperature sensor, chilled water motor-driven valve and flow sensor are set to
For in freezing water line, integral valve is set to chilled water and is back on the reflux line of host, host, which has, is electrically connected to intelligent control
The host control cabinet of control equipment and air conditioning control device, each motor-driven valve and flow sensor are electrically connected with intelligent control device,
The temperature sensor of cooling water and chilled water is electrically connected with host control cabinet, and cooling tower is electrically connected with air conditioning control device.It is practical
Novel C N203100061U discloses a kind of cold and hot channel energy conservation closed system of computer room, including front-seat cabinet, heel row cabinet, cabinet
Air-conditioning and horizontal blast channel；Front-seat cabinet and heel row cabinet are arranged in parallel, and are located on closed horizontal blast channel；Before
The front door at the front door and heel row cabinet of arranging cabinet is oppositely arranged, and forms closed cold air path, cold air path and closed water
Flat air-supply passage communicates；Closed horizontal blast channel is communicated with the cool air outlet of cabinet air conditioner, and cabinet air conditioner is mounted on envelope
On the horizontal blast channel closed, it is located at heel row cabinet side.It does not mention with heat exchange equipment in the prior art and realizes cold source
Shared technical effect.
To solve the problem for needing A and B freezing load shared in the prior art, it is badly in need of a kind of heat exchange equipment machine
Group realizes energy saving effect.
Summary of the invention:
It is existing to solve the purpose of the present invention is to provide a kind of central air-conditioning cooling, chilled water intelligent heat-exchange device systems
Having in technology, the unit big for freezing load amount lacks spare unit and unit frequent start-stop lesser for load,
The problem of causing energy waste.Specifically use following technical scheme:
A kind of central air-conditioning is cooling, chilled water intelligent heat-exchange device systems, and the system comprises PLC electrical controls to start cabinet
And air conditioning water system host A, water pump A, frequency converter A, the condensate correcting-distribuing device A at the cold station A connected to it；The cold station air-conditioning cold of B
Freeze water system host B, water pump B, frequency converter B, condensate correcting-distribuing device B, plate heat exchanger and electronic proportional integration valve；The host A, collection
Water segregator A, plate heat exchanger, water pump A circulation connect；The host B, plate heat exchanger, condensate correcting-distribuing device B and water pump B recycle phase
It connects；The plate heat exchanger is arranged on the chilled water main pipeline at the cold station A or the cold station B, heat exchange amount and the cold station refrigeration duty phase of B
Deng；PLC electrical control starting cabinet according to the energy adjustment and water pump A of terminal requirements automatic control host machine A and host B and
The start and stop of water pump B, while water pump A and water pump B is controlled by frequency converter A and frequency converter B according to the aperture of electronic proportional integration valve
Flow.
The electronic proportional integration valve shares nine, respectively M0-M8, and wherein M0, M1, M3, M5 and M7 are arranged at the cold station B
Into the circuit of the cold station air conditioning water system supply chilled water of A, M2, M4, M6 and M8 are arranged at the cold station A air conditioning water system
Air conditioning water system is into the circuit of the cold station air conditioning water system supply chilled water of B.
Described M0, M1 and M3 are arranged between the plate heat exchanger and the condensate correcting-distribuing device A, and wherein M0 is in parallel with M3,
It connects with M1；The M5 is arranged between the water pump B and the host B；M7 setting water pump B and plate heat exchanger it
Between.
The M2 is arranged between the plate heat exchanger and the condensate correcting-distribuing device A；M4 setting water pump A with it is board-like
Between heat exchanger；The M6 is arranged between the water pump B and the host B；The M8 is arranged in plate heat exchanger and water pump B
Between.
The central air-conditioning is cooling, chilled water intelligent heat-exchange device systems further include adjustable plate, and the adjustable plate setting exists
Between plate heat exchanger and M8, for mitigating the pressure of pipeline, the resistance with the cold station air conditioning water system end A is reached
Quite.
The central air-conditioning is cooling, chilled water intelligent heat-exchange device systems include three kinds of operational modes, the first mode is
The cold station air conditioning water system of B is opened for the cold station air conditioning water system of A, host B is opened at this time, and water pump A and water pump B are opened, electricity
Dynamic proportional integration valve M1, M3, M5 and M7 are opened, and M0, M2, M4, M6 and M8 are closed；7 DEG C of chilled waters by water pump B flow out by M7 to
Up to plate heat exchanger, after the 13 DEG C of cooling waters flowed out with the cold station condensate correcting-distribuing device A of A through M1 in plate heat exchanger carry out heat exchange,
It forms 12 DEG C of cooling water and flows to condensate correcting-distribuing device B through M5 again；The 13 DEG C of cooling waters flowed out by the cold station condensate correcting-distribuing device A of A through M1 are cooling
Water forms 8 DEG C of chilled waters after plate heat exchanger, and condensate correcting-distribuing device A is flowed to after M3.
Second of mode is to open the cold station air conditioning water system of A for the cold station air conditioning water system of B, and host A is opened at this time,
Water pump A and water pump B is opened, and electronic proportional integration valve M2, M4, M6 and M8 are opened, and M0, M1, M3, M5 and M7 are closed；M0 is expansion
Pipe；7 DEG C of chilled waters are flowed out by water pump A reaches plate heat exchanger through M4, the 13 DEG C of coolings flowed out in plate heat exchanger with host B
After water carries out heat exchange, forms 12 DEG C of cooling water and return to condensate correcting-distribuing device A through M2 again；By 13 DEG C of cooling waters warp of host B outflow
8 DEG C of chilled waters are formed after crossing plate heat exchanger, condensate correcting-distribuing device B is flowed to after adjustable plate and M8.
The third mode is the cold station air conditioning water system of A and the cold station air conditioning water system independent operating of B, at this time water pump
A and water pump B and host A and host B are opened, and electronic proportional integration valve M0 and M6 are opened, and M1-M5, M7 and M8 are closed.
The electronic proportional integration valve M0 is that DN32, M6 and M7 are DN250, remaining electronic proportional integration valve is DN200.
The heat exchange amount of the plate heat exchanger is 1230KW, water flow 260m3/h；The water pump A and water pump B flow are
140m3/ h, 30KW, lift 40m, pressure of return water 0.05MPa, discharge pressure 0.52MPa, water pump stop pressure and are
0.14MPa；The host A and host B discharge pressure are 0.35MPa；The collection water pressure of the condensate correcting-distribuing device A and condensate correcting-distribuing device B
For 0.3Pa；Dividing water pressure is 0.4Pa.
PLC electrical control starting cabinet can be adjusted according to the demand of practical cooling capacity size plate heat exchanger size,
The aperture of electronic proportional integration valve, pipeline, water pump A and water pump B flow and watt level
The invention has the following advantages:
One, in A cold station refrigeration duty hour, the cold station cold source of A can be shared for the cold station cold source demand of B, the cold station water cooler of B, cold
But tower does not have to open, and it is small to solve the cold station load of B, unit frequent start-stop, causes unit not energy-efficient and failure rate increase
Problem；Due to the cold station cold water main unit of B, cooling tower, cooling pump can be started without, and reach the cold station refrigeration duty of B by shared cold source
Demand, to realize energy saving purpose.
Two, when the cold station refrigeration duty of A is big, the cold station cold source of B can be shared for the cold station cold source demand of A, solves the cold station load of A
Greatly, unit wants full load to run, and without spare unit, just in case breaking down, the cold station cold source of B can provide spare cold source for the cold station A
Load solves the problems, such as to influence to produce due to cold source load deficiency.
Three, the temperature difference of plate heat exchanger can be controlled at 1 DEG C, can reach very high heat exchange efficiency.
Detailed description of the invention:
Fig. 1 is the first mode of the invention and second of mode flow direction schematic diagram；
Fig. 2 is plate heat exchanger flow diagram of the present invention.
Specific embodiment:
Embodiment 1
A kind of central air-conditioning is cooling, chilled water intelligent heat-exchange device systems, and the system comprises PLC electrical controls to start cabinet
And air conditioning water system host A, water pump A, frequency converter A, the condensate correcting-distribuing device A at the cold station A connected to it；The cold station air-conditioning cold of B
Freeze water system host B, water pump B, frequency converter B, condensate correcting-distribuing device B, plate heat exchanger and electronic proportional integration valve；The host A, collection
Water segregator, plate heat exchanger, water pump A circulation connect；The host B, plate heat exchanger, condensate correcting-distribuing device B and water pump B recycle phase
It connects；The plate heat exchanger is arranged on the chilled water main pipeline at the cold station A or the cold station B, heat exchange amount and the cold station refrigeration duty phase of B
Deng；PLC electrical control starting cabinet according to the energy adjustment and water pump A of terminal requirements automatic control host machine A and host B and
The start and stop of water pump B, while water pump A and water pump B is controlled by frequency converter A and frequency converter B according to the aperture of electronic proportional integration valve
Flow.
The electronic proportional integration valve shares nine, respectively M0-M8, and wherein M0, M1, M3, M5 and M7 are arranged at the cold station B
Into the circuit of the cold station air conditioning water system supply chilled water of A, M2, M4, M6 and M8 are arranged at the cold station A air conditioning water system
Air conditioning water system is into the circuit of the cold station air conditioning water system supply chilled water of B.
Described M0, M1 and M3 are arranged between the plate heat exchanger and the condensate correcting-distribuing device A, and wherein M0 is in parallel with M3,
It connects with M1；The M5 is arranged between the water pump B and the host B；M7 setting water pump B and plate heat exchanger it
Between.
The M2 is arranged between the plate heat exchanger and the condensate correcting-distribuing device A；M4 setting water pump A with it is board-like
Between heat exchanger；The M6 is arranged between the water pump A and the host A；The M8 is arranged in plate heat exchanger and water pump B
Between.
The central air-conditioning is cooling, chilled water intelligent heat-exchange device systems further include adjustable plate, and the adjustable plate setting exists
Between plate heat exchanger and M8, for mitigating the pressure of pipeline, the resistance with the cold station air conditioning water system end A is reached
Quite.
The central air-conditioning is cooling, chilled water intelligent heat-exchange device systems include three kinds of operational modes, is in the embodiment
The central air-conditioning is cooling, the first mode of chilled water intelligent heat-exchange device systems: opening the cold station air conditioning water system of B for A
Cold station air conditioning water system, host B is opened at this time, and water pump A and water pump B are opened, electronic proportional integration valve M1, M3, M5 and M7
It opens, M0, M2, M4, M6 and M8 are closed.7 DEG C of chilled waters reach plate heat exchanger by M7 by water pump B outflow, in plate-type heat-exchange
After the 13 DEG C of cooling waters flowed out with condensate correcting-distribuing device A through M1 in device carry out heat exchange, forms 12 DEG C of cooling water and flow to collection through M5 again
Water segregator B；8 DEG C of freezings are formed after plate heat exchanger by 13 DEG C of cooling water cooling waters that the cold station condensate correcting-distribuing device A of A is flowed out through M1
Water flows to condensate correcting-distribuing device A after M3.
The electronic proportional integration valve M0 is that DN32, M6 and M7 are DN250, remaining electronic proportional integration valve is DN200.
The heat exchange amount of the plate heat exchanger is 1230KW, water flow 260m3/h；The water pump A and water pump B flow are
140m3/ h, 30KW, lift 40m, pressure of return water 0.05MPa, discharge pressure 0.52MPa, water pump stop pressure and are
0.14MPa；The host A and host B discharge pressure are 0.35MPa.The water collector pressure is 0.3Pa；The water segregator pressure
Power is 0.4Pa.
PLC electrical control starting cabinet can be adjusted according to the demand of practical cooling capacity size plate heat exchanger size,
The aperture of electronic proportional integration valve, pipeline, water pump A and water pump B flow and watt level
Embodiment 2
Compared with Example 1, the embodiment is cooling, chilled water intelligent heat-exchange device systems second for the central air-conditioning
Kind mode: the cold station air conditioning water system of A is opened for the cold station air conditioning water system of B, host A is opened at this time, water pump A and water pump B
It opens, electronic proportional integration valve M2, M4, M6 and M8 are opened, and M0, M1, M3, M5 and M7 are closed；M0 is expansion tube.7 DEG C of chilled waters
It is flowed out by water pump A and reaches plate heat exchanger through M4,13 DEG C of cooling waters in plate heat exchanger with host B outflow carry out heat exchange
Afterwards, the cooling water for forming 12 DEG C returns to condensate correcting-distribuing device A through M2 again；Pass through plate heat exchanger by 13 DEG C of cooling waters of host B outflow
8 DEG C of chilled waters are formed afterwards, and condensate correcting-distribuing device B is flowed to after adjustable plate and M8.
Embodiment 3
Compared with embodiment 1 and embodiment 2, which is the central air-conditioning cooling, chilled water intelligent heat-exchange equipment
The third mode of system: the cold station air conditioning water system of A and the cold station air conditioning water system independent operating of B, at this time water pump A with
Water pump B and host A and host B are opened, and electronic proportional integration valve M0 and M6 are opened, and M1-M5, M7 and M8 are closed.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, without departing from the spirit and scope of the present invention, this hair
Bright to will also have various changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.
Claims (10)
1. a kind of central air-conditioning is cooling, chilled water intelligent heat-exchange device systems, the system comprises PLC electrical control starting cabinet with
And air conditioning water system host A, water pump A, frequency converter A, the condensate correcting-distribuing device A at the cold station A connected to it；The cold station air-conditioning freezing of B
Water system host B, water pump B, frequency converter B, condensate correcting-distribuing device B, plate heat exchanger and electronic proportional integration valve；The host A, collection point
Hydrophone A, plate heat exchanger, water pump A circulation connect；The host B, plate heat exchanger, condensate correcting-distribuing device B and water pump B circulation connect；
The plate heat exchanger is arranged on the chilled water main pipeline at the cold station A or the cold station B, and heat exchange amount is equal with the cold station refrigeration duty of B；Institute
PLC electrical control starting cabinet is stated according to the energy adjustment and water pump A and water pump B of terminal requirements automatic control host machine A and host B
Start and stop, while the stream of water pump A and water pump B are controlled according to the aperture of electronic proportional integration valve by frequency converter A and frequency converter B
Amount.
2. central air-conditioning according to claim 1 is cooling, chilled water intelligent heat-exchange device systems, which is characterized in that described
Electronic proportional integration valve shares nine, respectively M0-M8, and wherein M0, M1, M3, M5 and M7 are arranged in the cold station air conditioning water system of B
It unites into the circuit of the cold station air conditioning water system supply chilled water of A, M2, M4, M6 and M8 are arranged in the cold station air conditioning water system of A
It unites into the circuit of the cold station air conditioning water system supply chilled water of B.
3. central air-conditioning according to claim 2 is cooling, chilled water intelligent heat-exchange device systems, which is characterized in that described
M0, M1 and M3 are arranged between the plate heat exchanger and the condensate correcting-distribuing device A, and wherein M0 is in parallel with M3, connects with M1；It is described
M5 is arranged between the water pump B and the host B；The M7 is arranged between water pump B and plate heat exchanger；The M2 setting
Between the plate heat exchanger and the condensate correcting-distribuing device A；The M4 is arranged between water pump A and plate heat exchanger；The M6
It is arranged between the water pump B and the host B；The M8 is arranged between plate heat exchanger and water pump B.
4. central air-conditioning according to claim 3 is cooling, chilled water intelligent heat-exchange device systems, which is characterized in that described
System further includes regulating valve, and the regulating valve is arranged between plate heat exchanger and M8, for mitigating the pressure of pipeline, reaches it
To suitable with the cold station resistance of air conditioning water system end of A.
5. central air-conditioning according to claim 1 is cooling, chilled water intelligent heat-exchange device systems, which is characterized in that described
System includes three kinds of operational modes, the first mode is to open the cold station air conditioning water system of B for the cold station air conditioning water system of A,
Second of mode is to open the cold station air conditioning water system of A for the cold station air conditioning water system of B, the third mode is the cold station air-conditioning of A
Chilled water system and the cold station air conditioning water system independent operating of B.
6. central air-conditioning according to claim 5 is cooling, chilled water intelligent heat-exchange device systems, which is characterized in that described
The first mode is to open the cold station air conditioning water system of B for the cold station air conditioning water system of A, and host B is opened at this time, water pump A with
Water pump B is opened, and electronic proportional integration valve M1, M3, M5 and M7 are opened, and M0, M2, M4, M6 and M8 are closed；7 DEG C of chilled waters are by water pump B
Outflow by M7 reach plate heat exchanger, the 13 DEG C of cooling waters flowed out with the cold station condensate correcting-distribuing device A of A through M1 in plate heat exchanger into
After row heat exchange, forms 12 DEG C of cooling water and flow to condensate correcting-distribuing device B through M5 again；13 DEG C flowed out by the cold station condensate correcting-distribuing device of A through M1
Cooling water cooling water forms 8 DEG C of chilled waters after plate heat exchanger, and condensate correcting-distribuing device A is flowed to after M3.
7. central air-conditioning according to claim 5 is cooling, chilled water intelligent heat-exchange device systems, which is characterized in that described
Second mode is to open the cold station air conditioning water system of A for the cold station air conditioning water system of B, and host A is opened at this time, water pump A with
Water pump B is opened, and electronic proportional integration valve M2, M4, M6 and M8 are opened, and M0, M1, M3, M5 and M7 are closed；M0 is expansion tube；7 DEG C cold
Freeze water and flows out the 13 DEG C of cooling waters progress heat for reaching plate heat exchanger through M4, flowing out in plate heat exchanger with host B by water pump A
After exchange, forms 12 DEG C of cooling water and return to condensate correcting-distribuing device A through M2 again；It is changed by 13 DEG C of cooling waters of host B outflow by board-like
8 DEG C of chilled waters are formed after hot device A, and condensate correcting-distribuing device B is flowed to after adjustable plate and M8.
8. central air-conditioning according to claim 5 is cooling, chilled water intelligent heat-exchange device systems, which is characterized in that described
The third mode is the cold station air conditioning water system of A and the cold station air conditioning water system independent operating of B, at this time water pump A and water pump B
It is opened with host A and host B, electronic proportional integration valve M0 and M6 are opened, and M1-M5, M7 and M8 are closed.
9. central air-conditioning according to claim 1 is cooling, chilled water intelligent heat-exchange device systems, which is characterized in that described
Electronic proportional integration valve M0 is that DN32, M6 and M7 are DN250, remaining electronic proportional integration valve is DN200；The plate heat exchanger
Heat exchange amount be 1230KW, water flow 260m3/h；The water pump A and water pump B flow are 140m3/ h, 30KW, lift 40m are returned
Water pressure is 0.05MPa, and discharge pressure 0.52MPa, stopping pressure is 0.14MPa；The host A and host B discharge pressure
For 0.35MPa.The condensate correcting-distribuing device integrates water pressure as 0.3Pa；Dividing water pressure is 0.4Pa.
10. central air-conditioning according to claim 1 is cooling, chilled water intelligent heat-exchange device systems, which is characterized in that described
PLC electrical control starts cabinet can adjust the size of plate heat exchanger, electronic proportional integration according to the demand of practical cooling capacity size
The aperture of valve, pipeline, water pump A and water pump B flow and watt level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810932618.XA CN109028408B (en) | 2018-08-16 | 2018-08-16 | Central air-conditioning cooling, chilled water intelligent heat-exchange device systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810932618.XA CN109028408B (en) | 2018-08-16 | 2018-08-16 | Central air-conditioning cooling, chilled water intelligent heat-exchange device systems |
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| CN109028408A true CN109028408A (en) | 2018-12-18 |
| CN109028408B CN109028408B (en) | 2019-08-30 |
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| KR20110059344A (en) * | 2009-11-27 | 2011-06-02 | 엘지전자 주식회사 | Chiller and control method of the same |
| CN202547171U (en) * | 2012-04-09 | 2012-11-21 | 上海冠生园食品有限公司 | Refrigeration system |
| CN203533758U (en) * | 2013-10-13 | 2014-04-09 | 陕西致盛新能源科技有限公司 | Parallel type modular earth energy air conditioner |
| CN204853754U (en) * | 2014-05-09 | 2015-12-09 | 重庆大学 | A gas heat pump system for building cold and hot supply of inside and outside subregion |
| WO2016077559A1 (en) * | 2014-11-14 | 2016-05-19 | Carrier Corporation | On board chiller capacity calculation |
| CN205536409U (en) * | 2016-03-22 | 2016-08-31 | 郑州惠银空调环保工程有限公司 | Central air conditioning energy -saving control equipment |
| CN106500280A (en) * | 2016-12-28 | 2017-03-15 | 珠海格力电器股份有限公司 | A kind of control system and control method at the cold station of central air-conditioning |
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