CN108488972A - A kind of control method of cooling tower assisted ground source heat pump system that pressing four state optimizations - Google Patents
A kind of control method of cooling tower assisted ground source heat pump system that pressing four state optimizations Download PDFInfo
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- CN108488972A CN108488972A CN201810289170.4A CN201810289170A CN108488972A CN 108488972 A CN108488972 A CN 108488972A CN 201810289170 A CN201810289170 A CN 201810289170A CN 108488972 A CN108488972 A CN 108488972A
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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
- F24F5/0046—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 using natural energy, e.g. solar energy, energy from the ground
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
- F24F11/47—Responding to energy costs
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- 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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
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Abstract
The invention discloses a kind of control methods of cooling tower assisted ground source heat pump system that pressing four state optimizations, are related to ground-source heat pump system control technology field.Include the control of following four states：After buried guard system reaches 860h cooling time, the cooling tower being connected with screw-type ground source heat pump unit is loaded；When the inlet water temperature of screw-type ground source heat pump unit condensation end continues 5min and is more than 37 DEG C, the cooling tower being connected with centrifugal refrigerating machines is loaded；When the exit water temperature of screw-type ground source heat pump train condenser continues 5min less than 30 DEG C, the cooling tower being connected with screw-type ground source heat pump unit is unloaded；When the exit water temperature of centrifugal refrigerating machines condenser continues 5min less than 32 DEG C, the cooling tower being connected with screw-type ground source heat pump unit is opened.The present invention ensures the cold and hot balance of embedding system regional soil, improves the operational efficiency and service life of system, reduce energy consumption by using constant temperature control strategy on the basis of timing controlled.
Description
Technical field
The invention belongs to ground-source heat pump system control technology fields, more particularly to a kind of cooling tower for pressing four state optimizations
The control method of assisted ground source heat pump system.
Background technology
In ground-source heat pump system, the load of winter and summer are unequal, and the thermic load of winter air-conditioning is significantly lower than summer
The refrigeration duty of air-conditioning just will appear the soil moisture and constantly increase if only using the ground-source heat pump system of ground heat exchanger
The phenomenon that, the cold and hot balance of soil is seriously affected, also resulting in the ground-source heat pump system efficiency of operation reduces, and alleviates this master
It is exactly to increase supplemental heat rejected facility to want the main path of phenomenon, keeps entire ground-source heat pump system more perfect.For parallel cold
But tower ground-source heat pump system, cooling tower is in parallel with buried guard system, and by the adjusting control to corresponding butterfly valve, ground source may be implemented
Three kinds of operational modes of heat pump system, respectively cooling tower isolated operation pattern, underground pipe isolated operation pattern, cooling tower and ground
Pipe laying while operational mode.Cooling tower isolated operation mainly underground pipe surrounding soil constant temperature raising need the time restore with
It is run when excessive season, operational mode mainly all can be excellent in summer simultaneously for underground pipe independent operation mode and cooling tower and underground pipe
First run.Generally in actual projects, relevant staff can be according to the practical feelings of ground-source heat pump system operation
Condition, the rational three kinds of operational modes called above have reached that whole system is efficient, energy-efficient effect.
Currently, mainly having three ways, such as the control strategy of cooling tower following：
(1) constant temperature controls, mainly opening and closing into (going out) coolant-temperature gage as cooling tower using earth source heat pump unit
Judgment value, when higher than this judgment value, cooling tower opens auxiliary heat dissipation, otherwise closes cooling tower, buried guard system independent operating；
(2) temperature difference controls, mainly with earth source heat pump unit into (going out) mouth temperature and outdoor dry (wet) ball temperature it
Between the judgment value that is opened and closed as cooling tower of difference, when higher than this judgment value, cooling tower opens auxiliary heat dissipation, when low
When this judgment value, cooling tower is closed；
(3) timing controlled, according to the time for opening cooling tower auxiliary heat dissipation in 1 year is calculated, then according to setting
The time set opens and closes cooling tower.
Constant temperature control is controlled with the temperature difference, when being primarily due to the cooling capacity of underground heat exchange system and not reaching requirement,
It opens cooling tower and carries out auxiliary heat dissipation, achieve the effect that peak regulation, but it all cannot be guaranteed the cold and hot balance of soil；Timing controlled is not
Only control mode is simple and practicable, also helps the cold and hot balance of control soil.Therefore it provides a kind of cooling for pressing four state optimizations
The control method of tower assisted ground source heat pump system reaches soil using constant temperature control strategy is used on the basis of timing controlled
Cold and hot balance and system it is energy-efficient.
Invention content
The purpose of the present invention is to provide a kind of controlling parties of cooling tower assisted ground source heat pump system that pressing four state optimizations
Method monitors the heat that annual summer is discharged by being mounted with energy meter on the buried water inlet tube main pipeline in ground-source heat pump system
The heat that amount is taken out with winter constantly changes the control time of next year cooling tower according to the difference of winter in summer heat, in timing
Constant temperature control strategy is used to make cooling tower solid that is, by the way that the working time of annual cooling tower is calculated on the basis of control
It is run under the control that the fixed period passes through constant temperature, the working efficiency for solving existing ground-source heat pump system is low, energy consumption is big, soil
The service life of cold and hot uneven, buried guard system the problem of reducing.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions：
The present invention is a kind of control method of cooling tower assisted ground source heat pump system that pressing four state optimizations, is led using supervision
Machine carries out the control of following four states：State one：After underground pipe system reaches 860h cooling time, load is with screw
Cooling tower cooler operation is used alone in the connected cooling tower of source heat pump unit and cooling-tower circulating water pump；State two：Work as screw rod
When the inlet water temperature of formula earth source heat pump unit condensation end continues 5min and is more than 37 DEG C, load is connected cold with centrifugal refrigerating machines
But Tower System；State three：When the exit water temperature of screw-type ground source heat pump train condenser continue 5min less than 30 DEG C when, unloading with
The connected cooling tower systems of screw-type ground source heat pump unit；State four：When the exit water temperature of centrifugal refrigerating machines condenser is held
When continuous 5min is less than 32 DEG C, the cooling tower systems being connected with screw-type ground source heat pump unit are opened.
Further, with controlling the parallel cooling tower in parallel with underground pipe applied to the cooling tower source of four states
Heat pump system.
Further, the cooling tower being connected with screw-type ground source heat pump unit is loaded in the state one and cooling tower follows
The method of ring water pump includes the following steps：SS00：Two screw-type ground source heat pump units are run simultaneously；SS01：Close screw
Earth source heat pump unit：After buried guard system cooling time reaches 860 hours, supervision host sends out instruction with stopping screw source
Heat pump unit；SS02：With closing screw source ground source cooling water pump：Screw-type ground source heat pump unit closing after and be delayed three
After minute, corresponding run time longest ground source cooling water pump is closed；SS03：Close cooling water butterfly valve：Closing ground source
After the cooling water pump of side, corresponding cooling water butterfly valve is closed；SS04：Close air conditioning water pump：After closing cooling water butterfly valve, close
Close the corresponding longest air conditioning water pump of run time；SS05：Close air conditioning water butterfly valve：Closing air conditioning water pump
Afterwards, corresponding air conditioning water butterfly valve is closed；SS06：Open cooling water butterfly valve：After the closing of air conditioning water butterfly valve, open cold
But water electric butterfly valve；SS07：Open cooling tower side cooling water pump：After cooling water butterfly valve is correctly opened, cooling tower side fortune is opened
Row time shortest cooling water pump；SS08：Close ground source cooling water pump：After opening cooling tower side cooling water pump, close with
Screw-type ground source heat pump unit corresponding ground source cooling water pump；SS09：Close cooling water butterfly valve：Closing ground source cooling water
After pump, corresponding cooling water butterfly valve is closed；SS10：Close the butterfly valve of ground source condensate correcting-distribuing device：Closing corresponding cooling water butterfly
After valve, the butterfly valve of ground source condensate correcting-distribuing device is closed；When supervision host receives the butterfly valve normal switching-off of ground source condensate correcting-distribuing device
After feedback, then the Overall Steps for the cooling tower that unlatching is connected with screw-type ground source heat pump unit are smoothly completed, cooling is used alone
Tower is cooled down.
Further, loaded in the state two method of cooling tower systems being connected with centrifugal refrigerating machines include with
Lower step：S001：Open cooling water butterfly valve：It is more than 37 to continue 5min in the inlet water temperature of screw-type ground source heat pump unit condensation end
DEG C when, supervision host send out instruction open cooling water butterfly valve；S002：Open cooling tower side water pump：It is correctly opened in cooling water butterfly valve
Qi Hou opens cooling tower side water pump；S003：Open air conditioning water butterfly valve：Cooling tower side water pump correctly open after, open with
The corresponding air conditioning water butterfly valve of centrifugal refrigerating machines；S004：Open air conditioning water pump：It is correct in air conditioning water butterfly valve
After unlatching, accumulated running time shortest air conditioning water pump is opened；S005：Open centrifugal refrigerating machines：It is freezed in air-conditioning
After water pump is correctly opened, centrifugal refrigerating machines are opened；When supervision host receives normally-open anti-of centrifugal refrigerating machines
After feedback, then the Overall Steps for the cooling tower systems that load is connected with centrifugal refrigerating machines are smoothly completed.
Further, the method packet for the cooling tower systems being connected with screw-type ground source heat pump unit is unloaded in the state three
Include following steps：S01：Close screw-type ground source heat pump unit：When the exit water temperature of screw-type ground source heat pump train condenser is held
When continuous 5min is less than 30 DEG C, supervision host sends out instruction and stops screw-type ground source heat pump unit；S02：Close air conditioning water pump：
After screw-type ground source heat pump unit is closed and is delayed 3 minutes, corresponding air conditioning water pump is closed；S03：Close air-conditioning freezing
Water butterfly valve：After air conditioning water pump, corresponding air conditioning water butterfly valve is closed；S04：Close cooling tower side water pump：In air-conditioning
After chilled water butterfly valve is closed, corresponding accumulated running time longest cooling tower side water pump is closed；S05：Close cooling water butterfly valve：
After closing cooling tower side water pump, corresponding cooling water butterfly valve is closed；When supervision host receives cooling water butterfly valve normal switching-off
Feedback after, then smoothly complete the Overall Steps for the cooling tower systems that unloading is connected with screw-type ground source heat pump unit.
Further, the method packet for the cooling tower systems being connected with screw-type ground source heat pump unit is opened in the state four
Include following steps：Step 1：Open cooling water butterfly valve：Continue 5min in the exit water temperature of centrifugal refrigerating machines condenser to be less than
At 32 DEG C, supervision host sends out instruction and opens cooling water butterfly valve；Step 2：Open cooling tower side water pump：Cooling water butterfly valve just
After really opening, accumulated running time shortest cooling tower side water pump is opened；Step 3：Open air conditioning water butterfly valve：In cooling
After tower side water pump is correctly opened, the corresponding air conditioning water butterfly valve of screw-type ground source heat pump unit is opened；Step 4：Open air-conditioning
Chilled water pump：After air conditioning water butterfly valve is correctly opened, accumulated running time shortest air conditioning water pump is opened；Step
Five：Open screw-type ground source heat pump unit：After air conditioning water pumps correct open, supervision host sends out instruction and opens screw
Earth source heat pump unit；Step 6：Close centrifugal refrigerating machines：After the unlatching of screw-type ground source heat pump unit, supervision host hair
Go out instruction and stops centrifugal refrigerating machines；Step 7：Close air conditioning water pump：It is closed in centrifugal refrigerating machines and is delayed 3
After minute, corresponding air conditioning water pump is closed；Step 8：Close air conditioning water butterfly valve：After closing air conditioning water pump,
Close corresponding air conditioning water butterfly valve；Step 9：Close cooling tower side water pump：After the closing of air conditioning water butterfly valve, close
Corresponding cooling tower side water pump；Step 10：Close cooling water butterfly valve：After closing cooling tower side water pump, cooling water butterfly valve is closed；
After supervision host receives the feedback of cooling water butterfly valve normal switching-off, then unlatching and screw-type ground source heat pump unit are smoothly completed
The Overall Steps of connected cooling tower systems.
The invention has the advantages that：
The present invention is annual by being mounted with energy meter, monitoring on the buried water inlet tube main pipeline in the ground-source heat pump system
The heat that the heat that summer is discharged into takes out with winter constantly changes the control of next year cooling tower according to the difference of winter in summer heat
Time processed uses constant temperature control strategy on the basis of timing controlled, i.e., by the way that the working time of annual cooling tower is calculated,
So that cooling tower is run under the control that the fixed period passes through constant temperature, to ensure the cold and hot balance of embedding system regional soil, carries
The operational efficiency and service life of high system reduce energy consumption.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the flow chart of one control method of state in the present invention；
Fig. 2 is the flow chart of state two control method in the present invention；
Fig. 3 is the flow chart of three control method of state in the present invention；
Fig. 4 is the flow chart of four control method of state in the present invention；
Fig. 5 is the structural schematic diagram of the parallel cooling tower ground-source heat pump system of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
The present invention is a kind of control method of cooling tower assisted ground source heat pump system that pressing four state optimizations, application of the present invention
In the cooling tower parallel cooling tower ground-source heat pump system in parallel with underground pipe, the structure of parallel cooling tower ground-source heat pump system
Three kinds of operational modes of ground-source heat pump system may be implemented as shown in figure 5, by the adjusting control to corresponding butterfly valve in schematic diagram,
Respectively cooling tower isolated operation pattern, underground pipe isolated operation pattern, cooling tower and underground pipe operational mode simultaneously；Cooling tower
Isolated operation is mainly run when the raising of underground pipe surrounding soil constant temperature needs the time to restore with excessive season, and underground pipe is only
Operational mode mainly all can preferentially be run in summer simultaneously for vertical operational mode and cooling tower and underground pipe；Generally in actual project
In engineering, the actual conditions that relevant staff can run according to ground-source heat pump system, rational three kinds called above
Operational mode, has reached that whole system is efficient, energy-efficient effect.Using parallel cooling tower ground-source heat pump system, cooling tower can
With the independent operating when outdoor wet-bulb temperature is relatively low, underground pipe surrounding soil heat can have enough emissioning times, maintain
The thermal balance of soil.Moreover, the later stage soil moisture of summer has improved very high, the refrigeration duty needed at this time compared with
It is low, it is reduced if persistently not only resulting in the service life of buried guard system using buried guard system, also resulting in leads to ground source
The operational efficiency of heat pump system entirety reduces, and optimal effect is not achieved, and uses cooling tower independent operation mode at this time
Problem above effective solution.
The open mode for determining cooling tower, with ensure entire ground-source heat pump system summer and winter be discharged into soil heat and
The heat of taking-up is equal, mainly has constant temperature control, temperature difference control, timing controlled for the control strategy of cooling tower, according to design
The time for opening cooling tower auxiliary heat dissipation in 1 year is calculated, then opens and closes cooling tower pair according to the time set
It is controlled with the temperature difference in constant temperature control, when being primarily due to the cooling capacity of underground heat exchange system and not reaching requirement, opens cooling tower
Auxiliary heat dissipation is carried out, achievees the effect that peak regulation, but it all cannot be guaranteed the cold and hot balance of soil, timing controlled not only control mode
It is simple and practicable, the cold and hot balance of control soil is also helped, the present invention is used and controlled using constant temperature on the basis of timing controlled
Strategy makes cooling tower under the control that the fixed period passes through constant temperature that is, by the way that the working time of annual cooling tower is calculated
Operation, reach soil cold and hot balance and system it is energy-efficient, the annual run time of cooling tower is using following formula progress
It calculates：
In formula：Cfc--- heat pump refrigerating correction factor；
Cfh--- heat pump heat supply correction factor；
Qc--- the cooling water thermal discharge under the operation of system summer declared working condition, W；
Qh--- the cooling water caloric receptivity under the operation of Winter heat supply declared working condition, W；
c1--- the specific heat capacity of circulation of fluid, J/ (kg DEG C)；
m*--- the mass flow of circulation of fluid, kg/s；
Range --- temperature fluctuation amplitude, DEG C；
EFLHc--- equivalent full load time, h under refrigeration mode；
EFLHh--- equivalent full load time, h under heat supply mode.
Wherein, Cfc、CfhIt is chosen by table 1-1, the coefficient of refrigerating performance EER of earth source heat pump unit takes 5.0, and coefficient of heat supply COP takes
4.0；
QcTake the refrigerating capacity 1365KW, Q of heat pump unithTake the heating capacity 1410KW of heat pump unit；
c1The specific heat capacity 4.2J/ (kg DEG C) of water intaking, m*Take circulating water flowRange takes temperature fluctuation amplitude
5 DEG C of value；
EFLHcEquivalent full load time, EFLH under refrigeration modehThe equivalent full load time takes respectively under heat supply mode
1200h、900h。
Table 1-1 heat pump correction factors
It is about 323h that required data substitution formula can be calculated cooling tower whole year run time by comprehensive data above, from
It automatically records a tableland source heat pump unit respectively using day as the period and uses buried guard system cooling time annual June
The run time cooled down simultaneously using buried guard system with two tableland source heat pump units, by a tableland source heat pump unit usage time
Half be scaled two tableland source heat pump units simultaneously usage time, according to weather cold in winter and hot in summer and most of enterprises and institutions
Working time (7：30-17：30), air-conditioning system summer operation 120 days (September in June -), 90 days (- 2 months December) of winter operation,
Operation 10 hours daily；To ensure that soil heat balance, summer preferentially use the earth source heat pump unit of soil source cooling to freeze, preferentially
Operation 86 days, daily 10 hours, cooling tower was run 34 days, daily 10 hours, after annual October, stops using cooling
Tower and cooling-tower circulating water pump, the present invention carry out the control of following four states using supervision host：
State one：After underground pipe system reaches 860h cooling time, load and screw-type ground source heat pump unit (RT-2)
Cooling tower cooler operation is used alone in connected cooling tower and cooling-tower circulating water pump；State two：Work as screw-type ground source heat pump
When the inlet water temperature of unit (RT-2) condensation end continues 5min and is more than 37 DEG C, what load was connected with centrifugal refrigerating machines (RT-3)
Cooling tower systems；State three：It is less than 30 DEG C when the exit water temperature of screw-type ground source heat pump unit (RT-2) condenser continues 5min
When, unload the cooling tower systems being connected with screw-type ground source heat pump unit (RT-2)；State four：As centrifugal refrigerating machines (RT-
3) when the exit water temperature of condenser continues 5min less than 32 DEG C, the cooling being connected with screw-type ground source heat pump unit (RT-2) is opened
Tower System, the above process move in circles.
Wherein as shown in Figure 1, loading the cooling tower and cooling tower being connected with screw-type ground source heat pump unit in state one
The method of water circulating pump includes the following steps：SS00：Two screw-type ground source heat pump units (RT-1, RT-2) run simultaneously；
SS01：Close screw-type ground source heat pump unit (RT-1)：After buried guard system cooling time reaches 860 hours, host is supervised
It sends out instruction and stops screw-type ground source heat pump unit (RT-1)；SS02：Close screw source source cooling water pump (PCD-1,
PCD-2、PCD-3)：After screw-type ground source heat pump unit (RT-1) closing and after being delayed three minutes, when closing corresponding operation
Between longest ground source cooling water pump；SS03：Close cooling water butterfly valve：After closing ground source cooling water pump, close corresponding
Cooling water butterfly valve；SS04：Close air conditioning water pump (PCH-1, PCH-2, PCH-3)：After closing cooling water butterfly valve, closing pair
The longest air conditioning water pump of run time answered；SS05：Close air conditioning water butterfly valve：After closing air conditioning water pump,
Close corresponding air conditioning water butterfly valve；SS06：Open cooling water butterfly valve (sides cooling tower CT-1)：It is closed in air conditioning water butterfly valve
After closing, cooling water (side cooling tower (CT-1)) electric butterfly valve is opened；SS07：Open cooling tower (CT-1) side cooling water pump (PCD-
4、PCD-5)：After cooling water butterfly valve is correctly opened, the shortest cooling water pump of cooling tower (CT-1) side run time is opened；
SS08：Close ground source cooling water pump (PCD-1, PCD-2, PCD-3)：After opening the side cooling tower (CT-1) cooling water pump, close
Close ground source cooling water pump corresponding with screw-type ground source heat pump unit (RT-2)；SS09：Close cooling water butterfly valve：Closing ground
After source cooling water pump, corresponding cooling water butterfly valve is closed；SS10：Close the butterfly valve of ground source condensate correcting-distribuing device：It is corresponded to closing
Cooling water butterfly valve after, close ground source condensate correcting-distribuing device butterfly valve；When supervision host receives the butterfly valve of ground source condensate correcting-distribuing device
After the feedback of normal switching-off, then the whole steps for the cooling tower that unlatching is connected with screw-type ground source heat pump unit (RT-2) are smoothly completed
Suddenly, cooling tower is used alone to be cooled down.
Wherein as shown in Fig. 2, the method for loading the cooling tower systems being connected with centrifugal refrigerating machines in state two includes
Following steps：S001：Open cooling water (cooling tower side CT-2) butterfly valve：In the Inlet water of screw-type ground source heat pump unit condensation end
When the lasting 5min of temperature is more than 37 DEG C, supervision host sends out instruction and opens cooling water (cooling tower side CT-2) butterfly valve；S002：It opens cold
But tower side (CT-2) water pump (PCD-6, PCD-7)：After cooling water (cooling tower side (CT-2)) butterfly valve is correctly opened, cooling is opened
Tower side (CT-2) water pump；S003：Open air conditioning water butterfly valve：Cooling tower side (CT-2) water pump correctly open after, open with
The corresponding air conditioning water butterfly valve of centrifugal refrigerating machines (RT-3)；S004：Open air conditioning water pump (PC-1, PC-2)：
After air conditioning water butterfly valve is correctly opened, accumulated running time shortest air conditioning water pump is opened；S005：It opens centrifugal cold
Water dispenser group (RT-3)：After air conditioning water pumps correct open, centrifugal refrigerating machines (RT-3) are opened；When supervision host receives
After the feedback normally-open to centrifugal refrigerating machines, then the cooling tower system that load is connected with centrifugal refrigerating machines is smoothly completed
The Overall Steps of system.
Wherein as shown in figure 3, the method for unloading the cooling tower systems being connected with screw-type ground source heat pump unit in state three
Include the following steps：S01：Close screw-type ground source heat pump unit (RT-2)：When going out for screw-type ground source heat pump train condenser
When saliva temperature continues 5min less than 30 DEG C, supervision host sends out instruction and stops screw-type ground source heat pump unit (RT-2)；S02：It closes
Close air conditioning water pump：After screw-type ground source heat pump unit (RT-2) is closed and is delayed 3 minutes, corresponding air-conditioning freezing is closed
Water pump；S03：Close air conditioning water butterfly valve：After air conditioning water pump, corresponding air conditioning water butterfly valve is closed；S04：It closes
Close cooling tower side (CT-1) water pump：After the closing of air conditioning water butterfly valve, corresponding accumulated running time longest cooling is closed
Tower side (CT-1) water pump；S05：Close cooling water butterfly valve：After closing cooling tower side (CT-1) water pump, corresponding cooling water is closed
Butterfly valve；After supervision host receives the feedback of cooling water butterfly valve normal switching-off, then unloading and screw ground source heat are smoothly completed
The Overall Steps of the connected cooling tower systems of pump assembly.
Wherein as shown in figure 4, the method for opening the cooling tower systems being connected with screw-type ground source heat pump unit in state four
Include the following steps：Step 1：Open cooling water (cooling tower side CT-1) butterfly valve：In centrifugal refrigerating machines (RT-3) condenser
Exit water temperature continue 5min less than 32 DEG C when, supervision host send out instruction open cooling water (cooling tower side CT-1) butterfly valve；Step
Rapid two：Open cooling tower side (CT-1) water pump (PCD-4, PCD-5)：It is correctly opened in cooling water (cooling tower side CT-1) butterfly valve
Afterwards, accumulated running time shortest cooling tower side (CT-1) water pump is opened；Step 3：Open air conditioning water butterfly valve：In cooling
After tower side (CT-1) water pump is correctly opened, the corresponding air conditioning water butterfly valve of screw-type ground source heat pump unit (RT-2) is opened；Step
Rapid four：Open air conditioning water pump (PCD-4 or PCD-5)：After air conditioning water butterfly valve is correctly opened, when opening accumulative operation
Between shortest air conditioning water pump；Step 5：Open screw-type ground source heat pump unit (RT-2)：It is correctly opened in air conditioning water pump
Qi Hou, supervision host send out instruction and open screw-type ground source heat pump unit (RT-2)；Step 6：Close centrifugal refrigerating machines
(RT-3)：After screw-type ground source heat pump unit (RT-2) unlatching, supervision host sends out instruction and stops centrifugal refrigerating machines
(RT-3)；Step 7：Close air conditioning water pump (PC-1, PC-2)：It closes and is delayed 3 points in centrifugal refrigerating machines (RT-3)
Zhong Hou closes corresponding air conditioning water pump；Step 8：Close air conditioning water butterfly valve：After closing air conditioning water pump, close
Close corresponding air conditioning water butterfly valve；Step 9：Close cooling tower side (CT-2) water pump (PCD-6, PCD-7)：It is freezed in air-conditioning
After water butterfly valve is closed, corresponding cooling tower side (CT-2) water pump is closed；Step 10：Close cooling water (cooling tower side CT-2) butterfly
Valve：After closing cooling tower side (CT-2) water pump, cooling water (cooling tower side CT-2) butterfly valve is closed；When supervision host receive it is cold
But it after the feedback of water (cooling tower side CT-2) butterfly valve normal switching-off, then smoothly completes unlatching and is connected with screw-type ground source heat pump unit
Cooling tower systems Overall Steps.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the present invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the present invention
Principle and practical application, to enable skilled artisan to be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (6)
1. a kind of control method of cooling tower assisted ground source heat pump system that pressing four state optimizations, which is characterized in that using supervision
Host carries out the control of following four states：
State one：After underground pipe system reaches 860h cooling time, the cooling being connected with screw-type ground source heat pump unit is loaded
Cooling tower cooler operation is used alone in tower and cooling-tower circulating water pump；
State two：When the inlet water temperature of screw-type ground source heat pump unit condensation end, which continues 5min, is more than 37 DEG C, load and centrifugation
The connected cooling tower systems of formula handpiece Water Chilling Units；
State three：When the exit water temperature of screw-type ground source heat pump train condenser continues 5min less than 30 DEG C, unloading and screw rod
The connected cooling tower systems of formula earth source heat pump unit；
State four：When the exit water temperature of centrifugal refrigerating machines condenser continues 5min less than 32 DEG C, open with screw
The connected cooling tower systems of source heat pump unit.
2. a kind of control method of cooling tower assisted ground source heat pump system for pressing four state optimizations according to claim 1,
It is characterized in that, the control of four states is applied to the cooling tower parallel cooling tower earth source heat pump system in parallel with underground pipe
System.
3. a kind of control method of cooling tower assisted ground source heat pump system for pressing four state optimizations according to claim 1,
It is characterized in that, loading the cooling tower being connected with screw-type ground source heat pump unit and cooling-tower circulating water pump in the state one
Method include the following steps：
SS00：Two screw-type ground source heat pump units are run simultaneously；
SS01：Close screw-type ground source heat pump unit：After buried guard system cooling time reaches 860 hours, supervision host hair
Go out instruction and stops screw-type ground source heat pump unit；
SS02：With closing screw source ground source cooling water pump：After the closing of screw-type ground source heat pump unit and it is delayed three minutes
Afterwards, corresponding run time longest ground source cooling water pump is closed；
SS03：Close cooling water butterfly valve：After closing ground source cooling water pump, corresponding cooling water butterfly valve is closed；
SS04：Close air conditioning water pump：After closing cooling water butterfly valve, the corresponding longest air-conditioning freezing of run time is closed
Water pump；
SS05：Close air conditioning water butterfly valve：After closing air conditioning water pump, corresponding air conditioning water butterfly valve is closed；
SS06：Open cooling water butterfly valve：After the closing of air conditioning water butterfly valve, cooling water electric butterfly valve is opened；
SS07：Open cooling tower side cooling water pump：After cooling water butterfly valve is correctly opened, it is most short to open cooling tower side run time
Cooling water pump；
SS08：Close ground source cooling water pump：After opening cooling tower side cooling water pump, close and screw-type ground source heat pump unit
Corresponding ground source cooling water pump；
SS09：Close cooling water butterfly valve：After closing ground source cooling water pump, corresponding cooling water butterfly valve is closed；
SS10：Close the butterfly valve of ground source condensate correcting-distribuing device：After closing corresponding cooling water butterfly valve, ground source condensate correcting-distribuing device is closed
Butterfly valve；
After supervising the feedback for the butterfly valve normal switching-off that host receives ground source condensate correcting-distribuing device, then unlatching and screw rod are smoothly completed
The Overall Steps of the connected cooling tower of formula earth source heat pump unit are used alone cooling tower and are cooled down.
4. a kind of control method of cooling tower assisted ground source heat pump system for pressing four state optimizations according to claim 1,
It is characterized in that, the method for loading the cooling tower systems being connected with centrifugal refrigerating machines in the state two includes following step
Suddenly：
S001：Open cooling water butterfly valve：It is more than 37 DEG C to continue 5min in the inlet water temperature of screw-type ground source heat pump unit condensation end
When, supervision host sends out instruction and opens cooling water butterfly valve；
S002：Open cooling tower side water pump：After cooling water butterfly valve is correctly opened, cooling tower side water pump is opened；
S003：Open air conditioning water butterfly valve：After cooling tower side water pump is correctly opened, open corresponding with centrifugal refrigerating machines
Air conditioning water butterfly valve；
S004：Open air conditioning water pump：After air conditioning water butterfly valve is correctly opened, accumulated running time shortest sky is opened
Adjust chilled water pump；
S005：Open centrifugal refrigerating machines：After air conditioning water pumps correct open, centrifugal refrigerating machines are opened；
After supervision host receives centrifugal refrigerating machines normally-open feedback, then load and centrifugal cold water are smoothly completed
The Overall Steps of the connected cooling tower systems of unit.
5. a kind of control method of cooling tower assisted ground source heat pump system for pressing four state optimizations according to claim 1,
It is characterized in that, the method for unloading the cooling tower systems being connected with screw-type ground source heat pump unit in the state three includes following
Step：
S01：Close screw-type ground source heat pump unit：When to continue 5min low for the exit water temperature of screw-type ground source heat pump train condenser
When 30 DEG C, supervision host sends out instruction and stops screw-type ground source heat pump unit；
S02：Close air conditioning water pump：After screw-type ground source heat pump unit is closed and is delayed 3 minutes, corresponding air-conditioning is closed
Chilled water pump；
S03：Close air conditioning water butterfly valve：After air conditioning water pump, corresponding air conditioning water butterfly valve is closed；
S04：Close cooling tower side water pump：After the closing of air conditioning water butterfly valve, it is longest to close corresponding accumulated running time
Cooling tower side water pump；
S05：Close cooling water butterfly valve：After closing cooling tower side water pump, corresponding cooling water butterfly valve is closed；
After supervision host receives the feedback of cooling water butterfly valve normal switching-off, then unloading and screw-type ground source heat pump are smoothly completed
The Overall Steps of the connected cooling tower systems of unit.
6. a kind of control method of cooling tower assisted ground source heat pump system for pressing four state optimizations according to claim 1,
It is characterized in that, the method for opening the cooling tower systems being connected with screw-type ground source heat pump unit in the state four includes following
Step：
Step 1：Open cooling water butterfly valve：When the exit water temperature of centrifugal refrigerating machines condenser continues 5min less than 32 DEG C,
Supervision host sends out instruction and opens cooling water butterfly valve；
Step 2：Open cooling tower side water pump：After cooling water butterfly valve is correctly opened, accumulated running time shortest cooling is opened
Tower side water pump；
Step 3：Open air conditioning water butterfly valve：After cooling tower side water pump is correctly opened, screw-type ground source heat pump unit is opened
Corresponding air conditioning water butterfly valve；
Step 4：Open air conditioning water pump：After air conditioning water butterfly valve is correctly opened, it is shortest to open accumulated running time
Air conditioning water pumps；
Step 5：Open screw-type ground source heat pump unit：After air conditioning water pumps correct open, supervision host sends out instruction and opens
Open screw-type ground source heat pump unit；
Step 6：Close centrifugal refrigerating machines：After the unlatching of screw-type ground source heat pump unit, supervision host, which sends out instruction, to be stopped
Centrifugal refrigerating machines；
Step 7：Close air conditioning water pump：After centrifugal refrigerating machines are closed and are delayed 3 minutes, corresponding air-conditioning is closed
Chilled water pump；
Step 8：Close air conditioning water butterfly valve：After closing air conditioning water pump, corresponding air conditioning water butterfly valve is closed；
Step 9：Close cooling tower side water pump：After the closing of air conditioning water butterfly valve, corresponding cooling tower side water pump is closed；
Step 10：Close cooling water butterfly valve：After closing cooling tower side water pump, cooling water butterfly valve is closed；
After supervision host receives the feedback of cooling water butterfly valve normal switching-off, then unlatching and screw-type ground source heat pump are smoothly completed
The Overall Steps of the connected cooling tower systems of unit.
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