CN110398007B - Water chilling unit with fan wall and control method thereof - Google Patents
Water chilling unit with fan wall and control method thereof Download PDFInfo
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- CN110398007B CN110398007B CN201910590418.5A CN201910590418A CN110398007B CN 110398007 B CN110398007 B CN 110398007B CN 201910590418 A CN201910590418 A CN 201910590418A CN 110398007 B CN110398007 B CN 110398007B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009833 condensation Methods 0.000 claims abstract description 13
- 230000005494 condensation Effects 0.000 claims abstract description 13
- 238000013461 design Methods 0.000 claims abstract description 3
- 238000012360 testing method Methods 0.000 claims description 15
- 239000000498 cooling water Substances 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 35
- 238000001816 cooling Methods 0.000 description 11
- 239000003507 refrigerant Substances 0.000 description 11
- 238000004378 air conditioning Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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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
- F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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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
-
- 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
- F24F13/20—Casings or covers
-
- 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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a water chilling unit with a fan wall and a control method thereof, wherein the water chilling unit comprises: the control system comprises a control system body, a compressor, an evaporator, an efficiency improving and scale controlling device, a fan wall device, an evaporative condenser and a dehydrator, wherein the compressor, the evaporator, the efficiency improving and scale controlling device, the fan wall device, the evaporative condenser and the dehydrator are arranged in the box body and are respectively connected with the control system; the compressor, the efficiency improving and scale controlling device, the evaporative condenser and the evaporator are sequentially connected through pipelines; the scale lifting and controlling device, the fan wall device, the evaporative condenser and the dehydrator are sequentially arranged according to the air flow direction in the box body; the water chiller unit integrates the Carnot circulation process and the air heat dissipation treatment process intelligently by using the evaporative condensation heat dissipation technology and the fan wall technology, so that the chilled water is prepared efficiently, and meanwhile, the condensation heat is released in situ, so that the water chiller unit is efficient and energy-saving; each functional section of the unit adopts a modularized design, so that flexible combination of the multifunctional sections can be realized; is suitable for various occasions requiring the preparation of chilled water or hot water for comfort and technical purposes.
Description
Technical Field
The invention relates to the technical field of refrigeration air conditioning and heating, in particular to a water chilling unit with simplified heat exchange links, high efficiency and energy conservation and a control method thereof.
Background
The traditional central air-conditioning cold source system generally adopts an air cooling or water cooling mode, the energy efficiency of the air cooling system is low, the water cooling system needs to be composed of a water cooling host machine, a cooling tower, a cooling water circulating pump and a cooling water pipeline system, and the problems of complex system, scattered equipment, difficult installation, large air quantity required by the same heat dissipation capacity, large occupied space, inflexible airflow organization, low energy efficiency of the system and the like exist.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a high-efficiency energy-saving water chilling unit with a fan wall and a control method thereof, which simplify a heat exchange link, and aims to solve at least one technical problem pointed out in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A chiller from a fan wall comprising: the control system comprises a control system body, a compressor, an evaporator, an efficiency improving and scale controlling device, a fan wall device, an evaporative condenser and a dehydrator, wherein the compressor, the evaporator, the efficiency improving and scale controlling device, the fan wall device, the evaporative condenser and the dehydrator are arranged in the box body and are respectively connected with the control system; the compressor, the efficiency improving and scale controlling device, the evaporative condenser and the evaporator are sequentially connected through pipelines; the scale lifting and controlling device, the fan wall device, the evaporative condenser and the dehydrator are sequentially arranged according to the air flow direction in the box body.
In the water chilling unit with the fan wall, the fan wall device is formed by orderly combining and arranging a plurality of centrifugal fans or axial flow fans.
In the cooling water set from taking fan wall, still including setting up the maintenance platform in the box, maintenance platform sets up the rear at the dehydrator.
In the water chilling unit with the fan wall, a throttling device is further arranged on a connecting pipeline between the evaporative condenser and the evaporator, and a water pump is connected in the evaporative condenser.
In the cooling water set with the fan wall, a plurality of brackets are further arranged at the bottom of the cooling water set, adjacent brackets are connected into a mounting seat through connecting blocks and screws arranged on two sides of the brackets, and the box body is fixed on the mounting seat.
In the water chilling unit with the fan wall, the box body comprises a plurality of box body units, each box body unit is arranged on a bracket, and adjacent box body units are connected in a seamless manner; an access door is arranged on each box body unit.
In the water chilling unit with the fan wall, the control system comprises a controller, a water outlet temperature sensor and an environment temperature sensor.
A control method of a water chilling unit with a fan wall comprises the following steps:
S01, setting a water outlet temperature, wherein a water outlet temperature sensor detects the difference value between the current water temperature and the test water temperature, if no requirement exists, the water outlet temperature sensor is kept in a standby state, if the environment temperature is lower than the test temperature, the step S02 is switched to, and if the environment temperature is higher than the test temperature, the step S03 is switched to;
S02, closing the water pump, starting the fan wall device at medium speed, sequentially starting the throttling device and the compressor, controlling the rotation speed of the fan wall and the switch of the water pump according to the design value of the condensation temperature, sequentially closing the compressor, the water pump and the fan wall device when the real-time temperature reaches the test temperature value, and recycling the actions when the load demand exists;
S03, starting a water pump, starting a fan wall device at medium speed, sequentially starting a throttling device and a compressor, controlling the rotating speed of the fan wall device according to condensing pressure, and when the real-time water outlet temperature reaches a test temperature value, sequentially stopping the compressor, the water pump and the fan wall device, and recycling the actions when load is needed.
In the control method of the water chilling unit with the fan wall, the transportation of each device is controlled to run by the controller.
In the control method of the water chilling unit with the fan wall, in the steps S02 and S03, the on/off of the water pump, the on/off of the operation mode of the fan wall device and the on/off of the compressor are all realized through manual keys.
The beneficial effects are that:
The invention provides a water chilling unit with a fan wall and a control method thereof, wherein the water chilling unit directly transfers heat and mass transfer of refrigerant condensation heat with wind and water by using a high-efficiency evaporative condenser, and the heat transfer process from the refrigerant to the air is completed by one-time heat exchange, so that the heat exchange link is simplified, and the high-efficiency energy saving is realized; the fan wall device can obtain low-enthalpy air from the outside and control the low-enthalpy air to be converted into high-enthalpy air to be discharged to the outside; the whole machine is controlled by the control system, the intelligent degree is high, the increase and decrease of the functional section and the adjustment of the position can be realized through the connecting block and the bracket at the bottom, and the combination is flexible.
Drawings
Fig. 1 is a schematic diagram of an internal structure of an embodiment of the water chilling unit with a fan.
FIG. 2 is a schematic structural view of an embodiment of the water chiller in front of the self-contained fan;
wherein the arrows in the figure point in the direction of the air flow.
Detailed Description
The invention provides a water chilling unit with a fan wall and a control method thereof, and aims to make the purposes, the technical scheme and the effects of the invention clearer and more definite. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, the present invention provides a water chiller with a fan wall, comprising: the control system comprises a control system 1, a box body 2, a compressor 3, an evaporator 4, an efficiency improving and scale controlling device 5, a fan wall device 6, an evaporative condenser 7 and a dehydrator 8, wherein the compressor 3, the evaporator 4, the efficiency improving and scale controlling device 5, the fan wall device 6, the evaporative condenser 7 and the dehydrator 8 are arranged in the box body 2 and are respectively connected with the control system 1; the compressor 3, the efficiency improving and scale controlling device 5, the evaporative condenser 7 and the evaporator 4 are sequentially connected through pipelines; the scale lifting and controlling device 5, the fan wall device 6, the evaporative condenser 7 and the dehydrator 8 are sequentially arranged according to the air flow direction in the box body 2.
In the water chilling unit, the effect-improving scale controller is an auxiliary condenser, is used for pre-controlling the temperature of the refrigerant, prevents the high-temperature refrigerant from directly entering the evaporative condenser to generate hard scale, and has good effect on controlling the evaporative condensation scale. In addition, the scale controller performs sensible heat exchange by utilizing dry balls for providing air by using heat dissipation airflow, and the energy efficiency ratio of the system is fully utilized by using the energy of each section. The water chilling unit comprises a heating function, and under the function, the effective scale controller is used for heat exchange and absorbing heat into the atmosphere.
In the evaporative condenser, the refrigerant flowing in the condensing tube is subjected to phase-change heat exchange and is transferred to the outside of the tube through the tube wall, air and a water film flow on the outer surface of the tube, and the water film evaporates to form water vapor to take away latent heat, so that the condensing temperature of the refrigerating system is reduced to be lower, and the efficient energy-saving operation of the refrigerating system is realized. The evaporative condenser applying the evaporative cooling technology has the advantages that the required air quantity per unit heat dissipation capacity is far smaller than that of a pure air cooling system, smaller air quantity is realized, smaller unit volume is more compact, and the evaporative condenser is used for replacing a cooling tower and applied to occasions with smaller sites and difficult installation.
The unit also comprises a water valve 14 and a drainage device 15 which are connected with the evaporator, and the water valve and the drainage device are respectively connected with a control system to realize intelligent control.
The water chilling unit forms an air conditioner refrigerating/heating system through a compressor, an evaporator, a throttling device, an efficiency improving and scale controlling device, an evaporative condenser and a control system, and forms a condensation ventilation heat exchange system through the efficiency improving and scale controlling device, a fan wall device, a water pump, the evaporative condenser, a dehydrator, an overhaul platform, a box body, the control system and the like, so that the air conditioning refrigerating/heating system is associated and interacted. Taking refrigeration cycle as an example, a refrigerant is lifted from low temperature and low pressure to high temperature and high pressure through a compressor, then enters an efficiency lifting scale control device and an evaporative condenser to dissipate heat, the refrigerant is condensed into a low temperature and high pressure liquid state from gaseous high temperature and high pressure, then the liquid refrigerant enters the evaporator through a throttling device at low temperature, the heat of chilled water is absorbed to cool the evaporator, and the accurate temperature of the water is discharged through a control system, so that the requirements are met. Taking refrigeration cycle as an example, providing air force required by condensation heat flow through a fan wall device, enabling ambient air to enter a box body from an air inlet, performing sensible heat exchange through an efficiency improving scale control device, taking away part of condensation heat, reducing the temperature of a refrigerant, enabling the ambient air to enter the fan wall device for performing aerodynamic lifting and uniformity treatment, enabling the air to enter an evaporative condenser more uniformly for performing deep heat exchange of sensible heat and latent heat, fully exchanging and extracting condensation heat of an air conditioning refrigeration system, enabling the air to be changed from low temperature and low humidity into high temperature and high humidity, enabling the air to enter an overhaul platform after water mist water drops are collected through a dehydrator, and then discharging the air into the external atmosphere. The air outlet of the water chilling unit can provide modes of horizontal air exhaust, top air exhaust, side air exhaust, bottom air exhaust and the like according to actual requirements, and meets the optimal airflow organization matching requirements of application sites.
The water chiller is integrated with a Carnot circulation process and an air heat dissipation treatment process by using an evaporative condensation heat dissipation technology and a fan wall technology, releases condensation heat on site while efficiently preparing chilled water, realizes high-intelligent integration while operating in an energy-saving mode, is suitable for occasions needing chilled (hot) water for comfortable process use in various industries, replaces a central air conditioning system for preparing chilled water by using a cooling tower, is particularly suitable for occasions for preparing chilled water by using the cooling tower to dissipate heat, and particularly is arranged in the fields of medium-high-rise and super high-rise building HVAC (Heating, ventilation and Air Conditioning, industrial ventilation and air conditioning) and utilizes an equipment layer or a refuge layer to solve the supply of a central air conditioning cold source.
The fan wall device 6 is formed by orderly combining and arranging a plurality of centrifugal fans 601 or axial flow fans; the application of the system with larger air quantity is realized by the advantages of small volume, low noise, uniform air flow, strong redundancy, flexible adjustment and the like of the small fan.
Still include setting up the maintenance platform 9 in box 2, maintenance platform 9 sets up the rear at dehydrator 8.
A throttling device 10 is further arranged on a connecting pipeline between the evaporative condenser 7 and the evaporator 4, and the flow of the refrigerant entering the evaporator is controlled, so that the heat exchange quantity of the refrigerant and chilled water is controlled, and the purpose of controlling the temperature of the outlet water is achieved; a water pump 11 is connected to the evaporative condenser 7 for supplying spray water to the evaporative condenser.
The bottom of the water chilling unit is also provided with a plurality of brackets 1201, adjacent brackets are connected into a mounting seat 12 through connecting blocks 1202 and screws arranged on two sides of the brackets, and the box body 2 is fixed on the mounting seat 12. In the water chilling unit, according to the function division module, each function module is installed on a support, and the aim of changing the composition of the water chilling unit is fulfilled by changing the splicing sequence and the combination mode of the support, so that the combination is flexible.
The box body 2 comprises a plurality of box body units 201, each box body unit 201 is arranged on a bracket 1201, and adjacent box body units 201 are connected in a seamless manner; each box unit 201 is provided with an access door 13, so that the adjustment and the overhaul of the combination are convenient; by combining the box body, the bracket and the access door, the water chilling unit can realize various combined arrangement air inlet/exhaust modes such as horizontal air inlet/exhaust, top air inlet/exhaust, side air inlet/exhaust, bottom air inlet/exhaust and the like, and the requirements of different application occasions are met.
The control system 1 comprises a controller 101, a water outlet temperature sensor (not shown in the figure) and an ambient temperature sensor (not shown in the figure); and collecting the ambient temperature in real time, judging the working mode of the water chilling unit, and realizing accurate drainage temperature.
A control method of a water chilling unit with a fan wall is characterized in that the control is integrated into a control system, and the control modes comprise an automatic operation mode and a manual operation mode.
When the water chilling unit is in an automatic operation mode, after the hand-out temperature is set, a water outlet temperature sensor detects the difference value between the current water temperature and the test water temperature in real time; if no need exists, the current standby state is maintained; if required, firstly, according to the ambient temperature fed back by an ambient temperature sensor, when T1 Ring temperature ＜TK Built-in is carried out, the water pump is not started, and the rotating speed of the fan wall device and whether the water pump is put into operation or not are controlled according to the condensing pressure. When the real-time water outlet temperature reaches the test temperature value, the compressor and the water pump are sequentially turned off, and the fan wall device is stopped in a delayed mode. When there is a load demand, the above actions are circulated again. All the operations are automatically operated by logic instructions built in the control system.
When T1 Ring temperature ≥TK Built-in , firstly starting the water pump, starting the fan wall device at a medium speed, then sequentially starting the throttling device and the compressor, controlling the rotating speed of the fan wall device according to the condensing pressure, when the real-time water outlet temperature reaches a test temperature value, sequentially closing the compressor and the water pump, and stopping the fan wall device in a delayed mode; when there is a load demand, the above actions are circulated again. All the operations are automatically operated by logic instructions built in the control system.
The above-mentioned T1 Ring temperature indication real-time ambient temperature, T K Built-in represents the temperature value determined according to the algorithm and test verification.
When the water chilling unit is in a manual operation mode, after the water outlet temperature is set, the water outlet temperature sensor detects the difference value between the current water temperature and the test water temperature in real time, and if no requirement exists, the current standby state is maintained; if required, the water pump is started or stopped according to the case instruction in the mode, the fan wall device is started or stopped according to the key instruction in the mode, and then the compressor is started or stopped according to the key instruction; manually adjusting the rotating speed of the fan wall device and whether the water pump is put into operation according to the condensation pressure display value; when the real-time water outlet temperature reaches the set temperature value, the compressor, the water pump and the fan wall device are manually and sequentially turned off. And when a load demand exists, the manual operation is recycled, so that the manual operation is realized.
Furthermore, the water chilling unit also comprises a debugging operation and maintenance mode, and in the mode, components and devices such as a compressor, an evaporator, a throttling device, an efficiency improving and scale controlling device, a fan wall device, a water pump, an evaporation type condenser, a dehydrator, a water valve, a drainage device and the like can be independently started and stopped by controlling the start and stop of an operation interface of the system so as to realize component debugging, single machine debugging and system joint debugging and overhauling.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.
Claims (9)
1. From cooling water set of taking fan wall, its characterized in that includes: the control system comprises a control system body, a compressor, an evaporator, an efficiency improving and scale controlling device, a fan wall device, an evaporative condenser and a dehydrator, wherein the compressor, the evaporator, the efficiency improving and scale controlling device, the fan wall device, the evaporative condenser and the dehydrator are arranged in the box body and are respectively connected with the control system; the compressor, the efficiency improving and scale controlling device, the evaporative condenser and the evaporator are sequentially connected through pipelines; the scale lifting and controlling device, the fan wall device, the evaporative condenser and the dehydrator are sequentially arranged according to the air flow direction in the box body;
the bottom of cooling water set still is equipped with a plurality of support, connects into the mount pad through connecting block and the screw rod that set up in the support both sides between the adjacent support, the box is fixed on the mount pad, in the cooling water set, according to the function division module, every function module installs on a support, through the concatenation order and the combination mode of change support, reaches the purpose that the change cooling water set is constituteed.
2. The water chiller with the fan wall according to claim 1 wherein the fan wall device is formed by orderly combining a plurality of centrifugal fans or axial flow fans.
3. The water chiller with fan wall according to claim 1 further comprising an overhaul platform disposed in the tank, the overhaul platform being disposed behind the water trap.
4. The water chilling unit with a fan wall according to claim 1, wherein a throttling device is further arranged on a connecting pipeline between the evaporative condenser and the evaporator, and a water pump is connected in the evaporative condenser.
5. The water chiller with a fan wall according to claim 4 wherein the tank comprises a plurality of tank units, each tank unit being mounted on a bracket, adjacent tank units being connected seamlessly; an access door is arranged on each box body unit.
6. The self-contained fan wall chiller of claim 1, wherein the control system comprises a controller, a water outlet temperature sensor and an ambient temperature sensor.
7. A method of controlling a self-contained fan wall chiller as set forth in any one of claims 1-6 comprising:
S01, setting a water outlet temperature, wherein a water outlet temperature sensor detects the difference value between the current water temperature and the test water temperature, if no requirement exists, the water outlet temperature sensor is kept in a standby state, if the environment temperature is lower than the test temperature, the step S02 is switched to, and if the environment temperature is higher than the test temperature, the step S03 is switched to;
S02, closing the water pump, starting the fan wall device at medium speed, sequentially starting the throttling device and the compressor, controlling the rotation speed of the fan wall and the switch of the water pump according to the design value of the condensation temperature, sequentially closing the compressor, the water pump and the fan wall device when the real-time temperature reaches the test temperature value, and recycling the actions when the load demand exists;
S03, starting a water pump, starting a fan wall device at medium speed, sequentially starting a throttling device and a compressor, controlling the rotating speed of the fan wall device according to condensing pressure, and when the real-time water outlet temperature reaches a test temperature value, sequentially stopping the compressor, the water pump and the fan wall device, and recycling the actions when load is needed.
8. The method of claim 7, wherein the transferring of each device is controlled by a controller.
9. The control method of the water chiller with a fan wall according to claim 7, wherein in the steps S02 and S03, the on/off of the water pump, the on/off of the operation mode of the fan wall device, and the on/off of the compressor are implemented by manual keys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910590418.5A CN110398007B (en) | 2019-07-02 | 2019-07-02 | Water chilling unit with fan wall and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910590418.5A CN110398007B (en) | 2019-07-02 | 2019-07-02 | Water chilling unit with fan wall and control method thereof |
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| CN110398007A CN110398007A (en) | 2019-11-01 |
| CN110398007B true CN110398007B (en) | 2024-05-17 |
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| CN210891992U (en) * | 2019-07-02 | 2020-06-30 | 广东申菱环境系统股份有限公司 | Water chilling unit with fan wall |
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