CN108917160A - A kind of system that plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine - Google Patents
A kind of system that plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine Download PDFInfo
- Publication number
- CN108917160A CN108917160A CN201810764241.1A CN201810764241A CN108917160A CN 108917160 A CN108917160 A CN 108917160A CN 201810764241 A CN201810764241 A CN 201810764241A CN 108917160 A CN108917160 A CN 108917160A
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- China
- Prior art keywords
- heat exchanger
- water
- plate heat
- central air
- conditioning refrigeration
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- 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.)
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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
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
-
- 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
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The present invention relates to the systems that a kind of plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine, belong to central air-conditioning refrigeration technology field, the plate heat exchanger includes frequency conversion screw water cooler as the system that central air-conditioning refrigeration subsidiary engine uses, plate heat exchanger, freeze water unit, cooling water unit, the frequency conversion screw water cooler is installed in parallel with plate heat exchanger, freezing water unit is connect with board-like heat exchanger respectively with the inlet and outlet pipe lines of cooling water unit, the present invention provides the systems that a kind of plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine, it can be used for replacing electric refrigerating machine to run when winter, reach energy-saving, the purpose of upgrading synergy, practicability with higher.
Description
Technical field
The invention belongs to central air-conditioning refrigeration technology fields, specifically, being related to a kind of plate heat exchanger as central hollow
Modulate the system that cold subsidiary engine uses.
Background technique
Winter Zhaotong ambient temperature between 0 to 15 DEG C, and roll up hired car between because heat radiating equipment it is very much, if do not taken
Cooling measure room temperature can be higher than 26 DEG C that technique requires, therefore have the needs of cooling supply between volume hired car in winter.
Electric refrigerating machine rated power 287kW, individually refrigerating efficiency exists in 30%-40%, power when cold water between supply volume hired car
200kW changes between 250kW, and monthly 100,000 degree of power consumption or so, so winter, when cooling load is low, operation electric refrigerating machine is supplied
Chilled water from economic operation cost be the not cost-effective equipment method of operation in part pole.
Therefore, it is necessary to be improved to existing air-conditioning refrigeration system, so that the structure of air-conditioning refrigeration system is more complete
It is kind, under the premise of not increasing mass production cost, increase the practicability of air-conditioning refrigeration system.
Summary of the invention
In order to solve the problems, such as background technique, the present invention provides a kind of plate heat exchangers to modulate as central hollow
The system that cold subsidiary engine uses can be used for replacing electric refrigerating machine to run when winter, reach energy-saving, the purpose of upgrading synergy, tool
There is higher practicability.
In order to achieve the above objectives, the present invention is implemented by following technical solution：
The plate heat exchanger as the system that uses of central air-conditioning refrigeration subsidiary engine includes frequency conversion screw water cooler, board-like changes
Hot device, freezing water unit, cooling water unit, the frequency conversion screw water cooler are installed in parallel with plate heat exchanger, chilled water
Unit is connect with board-like heat exchanger respectively with the inlet and outlet pipe lines of cooling water unit.
Further, the freezing water unit includes chilled water pump, freezing moisture water vat, chilled water water collection tank, frequency conversion spiral shell
Bar water cooler and plate heat exchanger constitute freezing water generating device, and freezing moisture water vat connect with chilled water water collection tank, freezes
What moisture water vat and chilled water water collection tank were made up of chilled water conveyance conduit and frequency conversion screw water cooler and plate heat exchanger
Water generating device connection is freezed, chilled water pump is installed on chilled water conveyance conduit.
Further, the cooling water unit includes cooling tower, cooling water pump, and frequency conversion screw water cooler is changed with board-like
Hot device is connect by cooling water conveyance conduit with cooling tower, is equipped with cooling water pump on cooling water conveyance conduit.
Further, temperature sensor, pressure are mounted on the cooling water conveyance conduit and chilled water conveyance conduit
Sensor, motor-driven valve.
Further, the temperature sensor, pressure sensor, motor-driven valve and PLC controller connect.
Further, the plate heat exchanger heat exchange area is 101.1m2, plate number is 165.
Further, the PLC controller is Siemens S7-300, and increases ET200 as substation, configures substation electricity
Source module, I/O module, analog input and output module, communication modes use Profibus-DP between substation and main website.
Further, the plate heat exchanger is Alfa Laval plate heat exchanger.
Beneficial effects of the present invention：
The present invention provides the systems that a kind of plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine, can be used for replacing when winter
Electric refrigerating machine operation is reduced the environment temperature in operation workshop, is avoided temperature using the heat exchange between chilled water and cooling water
It is excessively high, product quality is impacted, meanwhile, reach energy-saving, the purpose of upgrading synergy, practicability with higher.
Detailed description of the invention
Fig. 1 is system installation structure schematic diagram of the invention.
In figure, 1- frequency conversion screw water cooler, 2- plate heat exchanger, 3- cooling water pump, 4- cooling tower, 5- chilled water
Pump, 6- temperature sensor, 7- pressure transmitter, 8- motor-driven valve, 9- freeze moisture water vat, 10- chilled water water collection tank.
Specific embodiment
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, below in conjunction with attached drawing, to the present invention
Preferred embodiment be described in detail, to facilitate the technical staff to understand.
As shown in Figure 1, the plate heat exchanger 2 includes frequency conversion screw as the system that central air-conditioning refrigeration subsidiary engine uses
Water cooler 1, plate heat exchanger 2, chilled water pump 5, freezing moisture water vat 9, chilled water water collection tank 10, cooling tower 4, cooling water
Pump 3, temperature sensor 6, pressure sensor, motor-driven valve 8, the frequency conversion screw water cooler 1 peace in parallel with plate heat exchanger 2
Dress, freezing water unit are connect with board-like heat exchanger respectively with the inlet and outlet pipe lines of cooling water unit, frequency conversion screw water cooler 1 and
Plate heat exchanger 2 constitutes freezing water generating device, and the plate heat exchanger is Alfa Laval plate heat exchanger 2, plate-type heat-exchange
2 heat exchange area of device is 101.1m2, and plate number is 165, under the premise of guaranteeing working properlyization, maximizes reduction and is produced into
This.
Freezing moisture water vat 9 is connect with chilled water water collection tank 10, and freezing moisture water vat 9 passes through cold with chilled water water collection tank 10
Freeze water conveyance conduit and connect with the freezing water generating device that frequency conversion screw water cooler 1 and plate heat exchanger 2 are constituted, chilled water is defeated
It send and chilled water pump 5 is installed on pipeline, the frequency conversion screw water cooler 1 and plate heat exchanger 2 pass through cooling water delivery pipe
Road is connect with cooling tower 4, and cooling water pump 3 is equipped on cooling water conveyance conduit, and cooling water conveyance conduit and chilled water convey
Temperature sensor 6, pressure sensor, motor-driven valve 8 are mounted on pipeline.
Temperature sensor 6, pressure sensor as detection device, temperature sensor 6, pressure sensor, motor-driven valve 8 with
PLC controller connection, the PLC controller are Siemens S7-300, increase ET200 conduct on the basis of original control
Substation configures substation power module, I/O module, analog input and output module, and communication modes use between substation and main website
Profibus-DP increases control frequency conversion screw water cooler 1 in original PLC control program and powers on 2 pipeline of plate heat exchanger
The program of dynamic valve 8 increases and automatically increases or decreases start and stop cooling tower fan operation number function according to the freezing output water temperature of plate heat exchanger 2
Program, on the touch screen of original cold water station monitoring system increase control motor-driven valve 8 operation, status display picture.
Frequency conversion screw water cooler 1 does not use simultaneously with plate heat exchanger 2, reaches energy-saving to maximize, upgrading increases
The purpose of effect.
Embodiment 1
When using plate heat exchanger 2 as refrigerating plant, it is mounted on 2 chilled water inlet and outlet pipe lines of plate heat exchanger and frequency conversion screw
Motor-driven valve 8 on 1 inlet and outlet pipe lines of water cooler is fully open, is mounted on 1 chilled water inlet and outlet pipes of frequency conversion screw water cooler
Motor-driven valve 8 on road and cooling water inlet and outlet pipe lines is all closed, and for winter outdoor temperature between 0 to 15 DEG C, cooling load is small
When use plate heat exchanger 2 to use as refrigeration subsidiary engine, PLC controller output program controls that be mounted on plate heat exchanger 2 cold
Freeze water inlet and outlet pipe lines and the motor-driven valve 8 on cooling water inlet and outlet pipe lines is fully open, is mounted on the disengaging of electric refrigerating machine chilled water
Motor-driven valve 8 on waterpipe and cooling water inlet and outlet pipe lines is all closed, after motor-driven valve 8 is opened, into the cold of plate heat exchanger 2
Freeze water and thermal energy exchange occurs for cooling water, the cooled water of the thermal energy of chilled water is taken away, and cooling water enters cooling tower, and cooling water passes through
Cooling tower fan for cooling, cooled water heat energy distribute in air, the cooling water after cooling enter again in plate heat exchanger 2 with freezing
The cycle heat exchange of heat exchange, cooling water and chilled water in plate heat exchanger 2 in cycles occurs again and reaches reduction freezing for water
Water temperature purpose, the start and stop number for the leaving water temperature for controlling chilled water, 4 cooling fan of cooling tower are programmed by PLC controller
It controls, if the temperature sensor 6 at chilled water water outlet detects temperature close to set temperature, maintains current cooling tower fan running
Number, detection temperature are greater than set temperature, increase cooling tower fan running number, and detection temperature is less than set temperature, reduces cold
But tower fan running number.
Embodiment 2
When using frequency conversion screw water cooler 1 as refrigerating plant, motor-driven valve 8 is all beaten on 1 pipeline of frequency conversion screw water cooler
Open, motor-driven valve on 2 pipeline of plate heat exchanger 8 is all closed, winter outdoor temperature between 0 to 15 DEG C, cooling load it is small when
Time uses plate heat exchanger 2 to use as refrigeration subsidiary engine, and the control of PLC controller output program is mounted on the freezing of plate heat exchanger 2
Water inlet and outlet pipe lines and the motor-driven valve 8 on cooling water inlet and outlet pipe lines are fully open, are mounted on electric refrigerating machine chilled water Inlet and outlet water
Motor-driven valve 8 on pipeline and cooling water inlet and outlet pipe lines is all closed, after motor-driven valve 8 is opened, into the freezing of plate heat exchanger 2
Thermal energy exchange occurs for water and cooling water, and the cooled water of the thermal energy of chilled water is taken away, and cooling water enters cooling tower, and cooling water is through being subcooled
But tower fan for cooling, cooled water heat energy distribute in air, the cooling water after cooling enter again in plate heat exchanger 2 with chilled water
The cycle heat exchange of heat exchange, cooling water and chilled water in plate heat exchanger 2 in cycles occurs again and reaches reduction chilled water
Warm purpose, for the leaving water temperature for controlling chilled water, the start and stop number of 4 cooling fan of cooling tower by PLC controller programming come
Control maintains current cooling tower fan running if the temperature sensor 6 at chilled water water outlet detects temperature close to set temperature
Number, detection temperature are greater than set temperature, increase cooling tower fan running number, and detection temperature is less than set temperature, reduces cooling
Tower fan running number.
The present invention provides the systems that a kind of plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine, when can be used for winter
It is run instead of electric refrigerating machine, using the heat exchange between chilled water and cooling water, reduces the environment temperature in operation workshop, avoid
Temperature is excessively high, impacts to product quality, meanwhile, reach energy-saving, the purpose of upgrading synergy is with higher practical
Property.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention rather than limits, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from defined by claims of the present invention.
Claims (8)
1. the system that a kind of plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine, it is characterised in that：The plate-type heat-exchange
Device includes frequency conversion screw water cooler, plate heat exchanger, freezes water unit, cold as the system that central air-conditioning refrigeration subsidiary engine uses
But water unit, the frequency conversion screw water cooler are installed in parallel with plate heat exchanger, freezing water unit and cooling water unit
Inlet and outlet pipe lines are connect with board-like heat exchanger respectively.
2. the system that a kind of plate heat exchanger according to claim 1 is used as central air-conditioning refrigeration subsidiary engine, feature
It is：The freezing water unit includes chilled water pump, freezing moisture water vat, chilled water water collection tank, frequency conversion screw water cooler
With plate heat exchanger constitute freezing water generating device, freezing moisture water vat connect with chilled water water collection tank, freeze moisture water vat and
Chilled water water collection tank is occurred by the chilled water that chilled water conveyance conduit and frequency conversion screw water cooler and plate heat exchanger are constituted
Device connects, and is equipped with chilled water pump on chilled water conveyance conduit.
3. the system that a kind of plate heat exchanger according to claim 1 is used as central air-conditioning refrigeration subsidiary engine, feature
It is：The cooling water unit includes cooling tower, cooling water pump, and frequency conversion screw water cooler passes through cold with plate heat exchanger
But water conveyance conduit is connect with cooling tower, is equipped with cooling water pump on cooling water conveyance conduit.
4. the system that a kind of plate heat exchanger according to claim 2 or 3 is used as central air-conditioning refrigeration subsidiary engine, special
Sign is：Temperature sensor, pressure sensor, electricity are mounted on the cooling water conveyance conduit and chilled water conveyance conduit
Dynamic valve.
5. the system that a kind of plate heat exchanger according to claim 4 is used as central air-conditioning refrigeration subsidiary engine, feature
It is：Temperature sensor, pressure sensor, motor-driven valve and the PLC controller connects.
6. the system that a kind of plate heat exchanger according to claim 1 is used as central air-conditioning refrigeration subsidiary engine, feature
It is：The plate heat exchanger heat exchange area is 101.1m2, plate number is 165.
7. the system that a kind of plate heat exchanger according to claim 1 is used as central air-conditioning refrigeration subsidiary engine, feature
It is：The PLC controller is Siemens S7-300, and increases ET200 as substation, configures substation power module, I/O
Module, analog input and output module, communication modes use Profibus-DP between substation and main website.
8. the system that a kind of plate heat exchanger according to claim 1 is used as central air-conditioning refrigeration subsidiary engine, feature
It is：The plate heat exchanger is Alfa Laval plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764241.1A CN108917160A (en) | 2018-07-12 | 2018-07-12 | A kind of system that plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764241.1A CN108917160A (en) | 2018-07-12 | 2018-07-12 | A kind of system that plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108917160A true CN108917160A (en) | 2018-11-30 |
Family
ID=64412059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810764241.1A Pending CN108917160A (en) | 2018-07-12 | 2018-07-12 | A kind of system that plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine |
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| Country | Link |
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| CN (1) | CN108917160A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08159611A (en) * | 1994-12-05 | 1996-06-21 | Hitachi Ltd | Water-cooled condenser |
| CN201852229U (en) * | 2010-08-23 | 2011-06-01 | 北京纳源丰科技发展有限公司 | Distributed type water-cooling separation type heat removal system for heat pipe |
| CN202581621U (en) * | 2012-03-06 | 2012-12-05 | 南京佳力图空调机电有限公司 | Energy saving water cooling system for communication machine house |
| CN203704205U (en) * | 2013-12-06 | 2014-07-09 | 广州赛唯热工设备有限公司 | Constant temperature and constant humidity energy saving system |
| CN208547106U (en) * | 2018-07-12 | 2019-02-26 | 红塔烟草(集团)有限责任公司 | A kind of system that plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine |
-
2018
- 2018-07-12 CN CN201810764241.1A patent/CN108917160A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08159611A (en) * | 1994-12-05 | 1996-06-21 | Hitachi Ltd | Water-cooled condenser |
| CN201852229U (en) * | 2010-08-23 | 2011-06-01 | 北京纳源丰科技发展有限公司 | Distributed type water-cooling separation type heat removal system for heat pipe |
| CN202581621U (en) * | 2012-03-06 | 2012-12-05 | 南京佳力图空调机电有限公司 | Energy saving water cooling system for communication machine house |
| CN203704205U (en) * | 2013-12-06 | 2014-07-09 | 广州赛唯热工设备有限公司 | Constant temperature and constant humidity energy saving system |
| CN208547106U (en) * | 2018-07-12 | 2019-02-26 | 红塔烟草(集团)有限责任公司 | A kind of system that plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |
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| RJ01 | Rejection of invention patent application after publication |