CN1235000C - Multiple circulation high efficiency full automatic water cooling central air conditioner system - Google Patents
Multiple circulation high efficiency full automatic water cooling central air conditioner system Download PDFInfo
- Publication number
- CN1235000C CN1235000C CN 200310117469 CN200310117469A CN1235000C CN 1235000 C CN1235000 C CN 1235000C CN 200310117469 CN200310117469 CN 200310117469 CN 200310117469 A CN200310117469 A CN 200310117469A CN 1235000 C CN1235000 C CN 1235000C
- Authority
- CN
- China
- Prior art keywords
- water
- water pump
- control
- cooling
- contactor
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a multiple circulation high efficiency fully automatic water cooling central air conditioning system which is composed of an air conditioning water system part and an air conditioning electric control part. A freezing water storing and releasing tank and cool supplying equipment alternately operate to provide cool consuming equipment with freezing water constantly in the system. Even if a host machine can run at high load, and the cool supplying equipment can run intermittently, the down time of the cool supplying equipment is changed along with the cooling load, and is the load is small, the down time is long. The present invention is provided with a plurality of secondary water pumps. When two-way valves of temperature controllers of blower coils at the end of the pumps are switched on, the water pumps are switched on, and when the two-way valves are switched off, the water pumps are switched off. The secondary pumps have different start-stop time, each pumps runs intermittently, and thereby, the goal of maximum energy saving is achieved. The system is controlled by the temperature controllers, the first end (coil blower) is switched on, the secondary water pumps of the cool consuming equipment run, and the cool supplying equipment automatically runs and stops according to the water temperature of the hot end of the freezing water storing and releasing tank. The last end is switched off, overall system stops running, and thereby, the present invention realizes the automation control of unattended operation machinery rooms.
Description
Technical field
The invention belongs to the technical field of air-conditioning and refrigeration, the high-effect full-automatic water-cooled central air conditioner system of particularly a kind of many circulations.
Background technology
At present, known water-cooled central air conditioner system has the ice storage central air-conditioning system, water cold-storage central air conditioner system and conventional water-cooled central air conditioner system.
Ice cold-storage and water cold-storage central air conditioner system purpose all are to shift peak of power consumption, in that being arranged, the enough preferential area of electricity price can save the electricity charge, reduce the electricity consumption pressure of peak period electrical network, as the term suggests ice cool storage medium based on ice, in the low power consumption electricity price there is the enough preferential period, the refrigeration machine ice making stores, and does not have the enough preferential period to discharge the latent heat cooling in electricity price, satisfies the requirement of air-conditioning cooling.Same water cool storage medium is based on water, having enough preferential period production to freeze water in the low power consumption electricity price stores, there is not the enough preferential period to discharge the sensible heat cooling in electricity price, satisfy the requirement of air-conditioning cooling, no matter be ice-storage system or chilled water storage system, the most important condition is exactly that two the charging adopted in this area electricity charge, and has enough preferential.Ice-storage system is because the refrigeration machine evaporating temperature is low, and Energy Efficiency Ratio is low by about 30%, so be more power consumption and an economical system.And the cost height, design debug complexity, application are not extensive, chilled water storage system since water to store up cold density low, so that the tank bulky is frozen in storage, the general user can't satisfy site requirements, and (the detailed accompanying drawing 1～accompanying drawing 3 of ice cold-storage and water cold-storage schematic diagram) therefore also seldom is applied.
Conventional water-cooled central air conditioner system utilizes chilled water pump to supply water to cold water main unit, through the cold water main unit refrigeration, do not hold freezing water supply air-conditioning then, satisfy the cold requirement of using of building, the advantage of conventional water-cooled central air-conditioning is: (usually Energy Efficiency Ratio is meant the ratio of the refrigerating capacity of refrigeration unit under declared working condition and input power to broad sense Energy Efficiency Ratio height.Here the broad sense Energy Efficiency Ratio that refers to is meant the refrigerating capacity of whole air-conditioning system and the ratio of power consumption), water-cooled central air conditioner system 100% load broad sense Energy Efficiency Ratio exceeds 50% than Air cooler under same operating mode, the water-cooled central air-conditioning is being loaded 100% o'clock broad sense Energy Efficiency Ratio usually between 3.0～3.6 under the standard condition, and Air cooler is between 2.0～2.4, therefore, the water-cooled central air-conditioning has air-cooled incomparable advantage by refrigeration performance.But since the cooling water pump of conventional water-cooled central air conditioner system, chilled water pump, cooling tower from system boot to shutting down continuous service; the power consumption of this part equipment does not reduce with the minimizing of main unit load; and the rated power of this part equipment account for whole system rated power about 30%, some design even higher.Along with end is more and more not littler with cold minimizing main unit load, the broad sense Energy Efficiency Ratio of system is just more and more littler, usually the design air-conditioning is all pressed the design of least favorable situation peak load, though got simultaneity factor, this simultaneity factor itself is exactly a very uncertain factor, causes the actual deviation of using and designing.I am with the operations under 50% load of 70% air-conditioning annual operation ratio at present, broad sense Energy Efficiency Ratio at this time be reduced to about 2.32～2.78 and air-cooled split also similar.It is just poorer than Air cooler broad sense Energy Efficiency Ratio that load reduces again, and the broad sense Energy Efficiency Ratio of conventional water-cooled central air-conditioning reduces with the minimizing of load, always can be to zero convergence, and the fast knot place of Here it is water-cooled central air-conditioning.Variable frequency pump in the market, frequency conversion cooling tower, owing to will guarantee the requirement of system's hydraulic pressure, thus can only be at load 60% with up-conversion, can only eliminate some because of designing excessive power consumption, and water pump can not infinitely low frequency conversion, itself just has individual radix; Some utilizes the pressure reduction frequency conversion of system and a little itself just there is very big deviation in getting of this pressure reduction, and energy-conservation can not be that the water yield reduces 50%, electric energy just saves 50%, this is that the pin for the treatment of the head when the head aches is cured the way of pin bitterly, is not the basic way of dealing with problems.And the frequency conversion investment is expensive, be not durable, maintenance requires the technology height, it is exactly that automaticity is low that conventional water-cooled central air-conditioning also has a shortcoming, and machine room needs the specialized operations personnel, and the defective of system itself can not realize that nobody waits for machine room and automated system, little load operation causes the broad sense Energy Efficiency Ratio to reduce, and the main frame Fraquent start, lose more than gain, give when load is low and the user who uses causes very big inconvenience.(conventional water-cooled central air-conditioning schematic diagram know clearly accompanying drawing 4).
For example Chinese invention patent 971164533 provides a kind of " big temperature difference electricity-saving water-stored cold load adjusting system ", it discloses a kind of chilled water storage system, can be when night, the network load low ebb phase be filled cold operating mode, surplus cold is stored in the water storage tank, and in putting the cold again operating mode of cold operating mode or bypass, utilize chilled water supply pump (being the secondary water pump) that chilled water is supplied with and use cool equipment.The start-stop of this system's chilled water supply pump (being the secondary water pump) and the size of the water yield are by the chilling requirement decision in building, a main frame connects a secondary water pump, no matter chilling requirement is much, its secondary water pump all must opened and be non-adjustable, does not reach purpose of energy saving better.The start and stop of chilled water circulating pump (being the one-level chilled water pump) and cooling-water machine are then divided by the period of local electricity price and are decided, that is by Artificial Control work operating mode, can not reach the purpose of automatic control.
More than three kinds of air-conditionings, ice-storage air-conditioning and water cold accumulation air-conditioner are that the inhomogeneities of the utilization society electrical network that grows up on the basis of conventional water-cooled central air-conditioning is sought more large economy interests, are " peak load shifting " air-conditioning usually, have economized money but not energy-conservation.Because the defective of conventional water-cooled central air-conditioning itself provides the wide range of commercial chance for air-cooled commercial split-type air conditioner in the market, the commercial split air conditioner that efficiency is low has but been stamped energy-conservation banner.More than three kinds of air-conditionings all do not go conserve energy from system itself, allow system's power consumption from the minimum load to the peak load, all closely follow the operation of maximum broad sense Energy Efficiency Ratio.
Goal of the invention
In order to overcome existing conventional water-cooled central air conditioner system not with the broad sense Energy Efficiency Ratio of maximum operation and can not supermatic defective, the invention provides a kind of high-effect full automatic water-cooled central air conditioner system, the highest broad sense Energy Efficiency Ratio operation of system can be close to by this system, and it is increasingly automated, machine room can unmanned, also can hold and freeze water and remote monitoring.
Summary of the invention
Technical scheme of the present invention is achieved in that it comprises air-conditioner water system part and air-conditioning electric control system.Air-conditioner water system partly comprises cooling equipment (cold water main unit, cooling tower, cooling water pump, one-level chilled water pump, motor-driven valve), with cool equipment (secondary water pump, end disk manage-style machine, temperature controller two-port valve), freeze water and store release tank, differential pressure controller and differential-pressure bypass valve; The air-conditioning electric control system comprises the control of secondary water pump control and the control of one-level chilled water pump, cooling water pump, cooling tower, cold water main unit.
It is characterized in that:
Described air-conditioner water system part, be provided with two above secondary water pumps, the evaporimeter of cold water main unit, the one-level chilled water pump, motor-driven valve, freeze water and store the series connection of release tank, the cold junction that freezes water storage release tank is connected with the chilled water feed pipe of cooling equipment, the hot junction of freezing water storage release groove is connected with the chilled water backwater person in charge of cooling equipment, the water inlet pipe of secondary water pump supplies water to be responsible for the chilled water of cooling equipment and is connected, the outlet pipe of secondary water pump is connected with the chilled water water inlet pipe of end disk manage-style machine, and the chilled water outlet pipe of coil pipe blower fan is responsible for the chilled water backwater of cooling equipment and is connected;
The secondary water pump control of described air-conditioning electric control system, the temperature controller two-port valve phase line end of each group end coil pipe blower fan is electrically connected with the signal end of each contactor of the signal controlling case of secondary water pump control respectively, the power outlet end of contactor " closes " switch with time-delay and is electrically connected, and the power outlet end of delay switch is electrically connected with the contactor signal end of secondary water pump control cabinet;
By air-conditioner water system part and air-conditioning electric control system; can realize: open first terminal fan coil; corresponding secondary water pump is through delayed firing; reach the upper limit (such as 14 ℃) when storing release groove hot junction water temperature; cooling equipment starts; motor-driven valve is opened simultaneously; cooling equipment begins to freeze water to supplying with cool equipment and storage release groove; when storage release groove hot-side temperature reaches lower limit (such as 10 ℃); the main shut-down system of cooling equipment, cooling water pump; cooling tower; the one-level chilled water pump is shut down through time-delay, and motor-driven valve cuts out simultaneously; the storage release groove begins release and freezes water; the secondary water pump uses the water that freezes that stores release groove, reaches the water temperature upper limit (such as 14 ℃), the cooling equipment start when freezing water storage release groove hot junction; give with cool equipment and store release groove and supply to freeze water; reciprocation cycle in this way, up to closing last end disk manage-style machine, the secondary water pump is shut down; the main shut-down system of cooling equipment, cooling water pump; cooling tower and one-level water pump are shut down through time-delay.Like this; storage release groove and cooling equipment are used alternatingly, and are frozen water with the cool equipment supply, have both made the heavy-duty service of main frame energy; make the cooling equipment intermitten operation again; and the time out of service is exactly energy-conservation space, and the secondary water pump is divided into some, opens with one of the two-port valve of this group end fan coil temperature controller and opens for every; all stop and stop; every start/stop time of secondary water pump is different, same also intermitten operation, and the secondary water pump is the energy saving space with cool equipment downtime.
Realize above-mentioned effect, also must take following design measure:
The flow of one-level water pump is greater than secondary water pump total flow when (1) designing;
(2) setting storage release groove temperature control temperature upper and lower limit is consistent with main frame return water temperature control setting upper and lower limit.
Compare with present water-cooled central air conditioner system, native system has several big advantages:
(1) overcomes ice, the economical not energy-conservation shortcoming of chilled water storage system, reduced the power consumption radix of system itself, improved the operational efficiency of equipment.
(2) efficiency height, the broad sense Energy Efficiency Ratio operation in the time of being close to the highest load.
(3) can both be under any load with cold, and uninterrupted for freezing water.
(4) increasingly automated, realize unattended equipment room.
(5) equipment is more durable, particularly cooling tower, cooling water pump, chilled water pump.
(6) store discharging tank moisture storage capacity minimum and have only one of ten parts of the one-level pump capacity to multiply by hour, is one of 20 parts of conventional water cold-storage tank, is fit to most of new building and lays and old building renovation.
Description of drawings
Accompanying drawing 1 is the ice storage central air-conditioning system diagram;
Accompanying drawing 2 is water at low temperature cold-storage central air conditioner system figure;
Accompanying drawing 3 is high-temperature water cold-storage central air conditioner system figure;
Accompanying drawing 4 is conventional water-cooled central air conditioner system figure;
Accompanying drawing 5 is system diagrams of first embodiment of the invention;
Accompanying drawing 6 is first embodiment of the invention at cooling equipment with the cool equipment system schematic under the operating condition simultaneously;
Accompanying drawing 7 is that first embodiment of the invention has a rest, uses the system schematic under the cool equipment operating condition at cooling equipment;
Accompanying drawing 8 is system diagrams of second embodiment of the invention;
Accompanying drawing 9 is second embodiment of the invention at cooling equipment with the cool equipment system schematic under the operating condition simultaneously;
Accompanying drawing 10 is that second embodiment of the invention has a rest, uses the system schematic under the cool equipment operating condition at cooling equipment;
Accompanying drawing 11 is secondary chilled water pump control circuit figure;
Accompanying drawing 12 is main line control signal case line maps;
Accompanying drawing 13 is coolant pump control circuit figure KK1;
Accompanying drawing 14 is cooling tower control circuit figure KK2;
Accompanying drawing 15 is one-level refrigerating water pump control circuit figure KK3;
Accompanying drawing 16 is host computer control case line map KK4;
The specific embodiment
Below by accompanying drawing two embodiment of the present invention are further described.In the present embodiment, we have designed three secondary water pumps, and in actual applications, we can design some secondary water pumps as required.
Accompanying drawing 5～accompanying drawing 10 is air-conditioner water system schematic diagrames of the embodiment of the invention, and air-conditioner water system comprises cooling equipment (cold water main unit A, cooling tower T, cooling water pump P, one-level chilled water pump B0, motor-driven valve E), with cool equipment (secondary water pump B1, B2, B3; End disk manage-style machine D11, D12, D13, D21, D22, D23, D31, D32, D33; Temperature controller two-port valve V11, V12, V13, V21, V22, V23, V31, V32, V33), freeze water and store release tank C, differential pressure controller F and differential-pressure bypass valve G.
Accompanying drawing 5～accompanying drawing 7 is first embodiment of the present invention, and secondary water pump B1, B2, B3 follow the end (D11, D12, D13) of corresponding water, (D21, D22, D23), and (D31, D32, D33) disperses to be placed on the diverse location of building.
The evaporimeter Ae of cold water main unit A, one-level chilled water pump B0, motor-driven valve E, freeze water and store to discharge tank C series connection, the cold junction Co that freezes water storage release tank C is connected with the chilled water feed pipe G1 of cooling equipment, and the hot junction CH that freezes water storage release groove C is responsible for G2 with the chilled water backwater of cooling equipment and is connected.
The water inlet pipe of secondary water pump B1, B2, B3 is responsible for G1 with the water supply of the chilled water of cooling equipment and is connected, the outlet pipe of secondary water pump is connected with the chilled water water inlet pipe of end disk manage-style machine D11～D33, and the chilled water outlet pipe of coil pipe blower fan is responsible for G2 with the chilled water backwater of cooling equipment and is connected.
The high-pressure side of differential pressure controller F is connected with the water inlet pipe of end, and low-pressure end is connected with the outlet pipe of end.
One of differential-pressure bypass valve G is connected with the secondary pumping line, and the other end is connected with the secondary pump water inlet.
Storing the release tank is a heat insulation trough, and the centre has baffle plate (wall) that cold and hot end is separated.
Accompanying drawing 8～accompanying drawing 10 is second embodiment of the present invention, and secondary water pump B1, B2, B3 concentrate and put together, rather than be dispersed in building everywhere.
The evaporimeter Ae of cold water main unit A, one-level chilled water pump B0, motor-driven valve E, freeze water and store to discharge tank C series connection, the cold junction Co that freezes water storage release tank C is responsible for G1 with the chilled water water supply of cooling equipment and is connected, and the hot junction CH that freezes water storage release groove C is connected with the chilled water backwater person in charge G2 of cooling equipment.
The water inlet pipe of secondary water pump B1, B2, B3 is responsible for G1 with the water supply of the chilled water of cooling equipment and is connected, the outlet pipe of secondary water pump is connected with the chilled water water inlet pipe of end disk manage-style machine D11～D33, and the chilled water outlet pipe of coil pipe blower fan is responsible for G2 with the chilled water backwater of cooling equipment and is connected.
The high-pressure side of differential pressure controller F is connected with the water inlet pipe of end, and low-pressure end is connected with the outlet pipe of end.
One of differential-pressure bypass valve G is connected with the secondary pumping line, and the other end is connected with the secondary pump water inlet.
More than two embodiment technical scheme features identical, therefore first embodiment causes the increase of differential pressure controller F and differential-pressure bypass valve G because secondary water pump dispersed placement, second embodiment has increased the water inlet of an end and has been responsible for G3.
The operation principle of air-conditioner water system is such:
As accompanying drawing 6 and accompanying drawing 9, when moving with cool equipment, corresponding secondary water pump B1, B2, B3 is through delayed firing, reach the upper limit (such as 14 ℃) when storing release tank C hot junction CH water temperature, cooling equipment starts, motor-driven valve E opens simultaneously, freezing water comes out from cold water main unit evaporimeter Ae, G1 is responsible in water supply through chilled water, a part is frozen water by secondary water pump B1, B2, B3 supplies with end disk manage-style machine D11～D33, after freezing water process end disk manage-style machine D11～D33 and two-port valve V11～V33,, finish the cooling process by the water inlet end that chilled water backwater person in charge G2 and one-level chilled water pump B0 get back to cold water main unit evaporimeter Ae; And another part freezes the cold junction Co that water enters storage release tank C, and storing frozen water reduces the water temperature of tank.
As accompanying drawing 7 and accompanying drawing 10; when storage release tank C hot junction CH temperature reaches lower limit (such as 10 ℃); the host A of cooling equipment is shut down; cooling water pump P; cooling tower T; one-level chilled water pump B0 shuts down through time-delay; motor-driven valve E closes simultaneously; storage release tank C begins release and freezes water; at secondary water pump B1; B2; under the effect of B3; freeze water from storing the water inlet end that the cold junction Co that discharges tank C flows to each secondary water pump; flow into end disk manage-style machine D11～D33 through the secondary water pump, freeze water through end disk manage-style machine D11～D33 and two-port valve V11～V33 after, be responsible for G2 by the chilled water backwater; get back to storing the hot junction CH that discharges tank C, finish the cooling process.
In above-mentioned cooling process; the start-stop of every secondary water pump; be to control by the temperature controller two-port valve of end disk manage-style machine; that is to say by with cold decision; reach the water temperature upper limit (such as 14 ℃) when storing the hot junction CH that discharges tank C; the cooling equipment start; give with cool equipment and store and discharge tank C for freezing water; reciprocation cycle in this way; up to closing last end disk manage-style machine; the secondary water pump is shut down, the main shut-down system of cooling equipment, and cooling water pump, cooling tower and one-level water pump are shut down through time-delay.
Accompanying drawing 11～accompanying drawing 16 is electrical control figure of the embodiment of the invention.
Secondary chilled water pump control circuit figure referring to accompanying drawing 11, two-port valve V11～V33 the break-make of each group end coil pipe blower fan is controlled corresponding secondary water pump, terminal D11, D12, D13 control B1 pump, terminal D21, D22, the corresponding B2 pump of D23, terminal D31, D32, the corresponding B3 pump of D33, terminal D11, D12, the temperature controller two-port valve phase line end of D13 respectively with the be electrically connected switch of the single phase poaer supply X that fetches control signal case K1 of the signal end of each contactor of signal controlling case K1, the power outlet end of the interior contactor of K1 " closes " switch with time-delay and is electrically connected, the power outlet end of delay switch is electrically connected with the contactor signal end of secondary water pump B1 control cabinet KB1, when opening first end disk manage-style machine, D11 for example, the two-port valve energising, signal box K1 power connection, delay switch is switched on through time-delay " closing ", and the contactor of water pump control cabinet KB1 is connected secondary water pump B1 starting.When same group end disk manage-style machine (D11, D12, D13) two-port valve reaches room temperature and all outages simultaneously; water pump B1 shuts down; when any one two-port valve is switched on because of room temperature raises; water pump B1 restarts through time-delay; when last end disk manage-style office of same group closes; water pump B1 is out of service; as long as this group also has an end disk manage-style machine also in operation; this group secondary water pump just can not be out of service; other group secondary water pumps are controlled principle control herewith, and the control of secondary water pump is established automatically and manual two kinds of control modes.
Referring to accompanying drawing 12～accompanying drawing 16, the power switch of terminal fan coil temperature controller, control cooling water pump, cooling tower, one-level chilled water pump, the cut-offfing of the contactor 2,4,6,8 in the control cabinet of main frame; The temperature controller that stores release groove cut-offs control cooling water pump, cooling tower, one-level chilled water pump and the interior contactor 1,3,5,7 of host computer control case and cut-offs.The power switch beginning of terminal fan coil temperature controller, such as D11, be electrically connected with the corresponding contactor signal of control cabinet K1 lead-in wire terminal on the same group, control cabinet K1 power supply is being electrically connected with the corresponding contactor signal of control main line signal box Kz lead-in wire terminal through contactor, the power outlet end of same signal controlling case K2 and signal controlling case K3 is electrically connected with the signal lead-in wire terminal of corresponding each contactor of control main signal case Kz respectively, K1, K2, corresponding each contactor leading-out terminal of K3 is electrically connected with the signal end of time-delay " branch " switch, time-delay " branch " Switching Power Supply leading-out terminal L4 and cooling water pump control cabinet KK1, cooling tower control cabinet KK2, the contactor 2 of one-level cooling water pump control cabinet KK3,4,6 signal lead-in wire terminals are electrically connected.The outlet L3 through time-delay " branch " switch is not electrically connected with the contactor 8 signal lead-in wire terminals of host computer control case KK4; One-level chilled water pump power supply phase line wherein one is electrically connected with motor-driven valve E after through 5,6 contactors; The power line that stores the release groove temperature controller is cut-off by the control of hot junction water temperature, the power outlet end is electrically connected with the corresponding contactor signal end of signal controlling case Kz, the corresponding contactor power outlet of Kz signal box end is electrically connected with the signal end of time-delay " branch " switch, time-delay " branch " Switching Power Supply leading-out terminal L2 is electrically connected with contactor 1,3, the 5 signal lead-in wire terminals of cooling water pump control cabinet KK1, cooling tower control cabinet KK2, one-level water pump control cabinet KK3, and the outlet L1 through time-delay " branch " switch is not electrically connected with the contactor 7 signal lead-in wire terminals of host computer control case KK4.
Like this, when any first terminal fan coil is opened, corresponding signal controlling case power connection, such as control cabinet K1, the K1 action, the corresponding contactor of main line control signal case Kz is connected, and the contactor 2,4,6,8 in the control cabinet of cooling water pump, cooling tower, one-level chilled water pump, main frame is connected; Reach the upper limit (such as 14 ℃) when storing release groove hot junction water temperature, store the contactor energising in the release groove temperature controller, corresponding contactor is connected in the main line control signal case Kz, contactor 1,3,5,7 in cooling water pump, cooling tower, one-level chilled water pump, the host computer control case is connected cooling water pump, cooling tower, one-level chilled water pump, host-initiated.Store release groove hot junction water temperature and do not reach ceiling temperature (such as 14 ℃), contactor 1,3,5,7 is disconnected, and cooling water pump, cooling tower, one-level chilled water pump and main frame can not start; Reach lower limit (such as 10 ℃) when storing release groove hot junction water temperature; storing the release groove temperature controller disconnects; the corresponding contactor of Kz disconnects; contactor 7 disconnects in the host computer control case; main shut-down system, again through time-delay " branch " switch, the contactor 1,3,5 in control cabinet KK1, KK2, the KK3 disconnects; cooling water pump, cooling tower, one-level refrigerating water pump are out of service, and two logical motor-driven valve E close simultaneously.Perhaps when terminal last fan coil temperature controller pass; K1, K2, K3 power supply disconnect; the corresponding contactor of Kz disconnects; contactor 8 disconnects in the host computer control case; main shut-down system, again through time-delay " branch " switch, the contactor 2,4,6 of control cabinet KK1, KK2, KK3 disconnects; cooling water pump, cooling tower, one-level refrigerating water pump are out of service, and two logical motor-driven valve E close simultaneously.
By above-mentioned air-conditioner water system and electric control system; can realize: open first terminal fan coil; corresponding secondary water pump is through delayed firing; reach the upper limit (such as 14 ℃) when storing release groove hot junction water temperature; cooling equipment starts; motor-driven valve is opened simultaneously; cooling equipment begins to freeze water to supplying with cool equipment and storage release groove; when storage release groove hot-side temperature reaches lower limit (such as 10 ℃); the main shut-down system of cooling equipment, cooling water pump; cooling tower; the one-level chilled water pump is shut down through time-delay, and motor-driven valve cuts out simultaneously; the storage release groove begins release and freezes water; the secondary water pump uses the water that freezes that stores release groove, reaches the water temperature upper limit (such as 14 ℃), the cooling equipment start when freezing water storage release groove hot junction; give with cool equipment and store release groove and supply to freeze water; reciprocation cycle in this way, up to closing last end disk manage-style machine, the secondary water pump is shut down; the main shut-down system of cooling equipment, cooling water pump; cooling tower and one-level water pump are shut down through time-delay.
Claims (7)
1. the high-effect full-automatic water-cooled central air conditioner system of circulation more than a kind, it is grouped into by air-conditioner water system part and air-conditioning electrical control division;
Described air-conditioner water system partly comprises cooling equipment, with cool equipment, freeze water and store to discharge tank, differential pressure controller and differential-pressure bypass valve, cooling equipment is made up of cold water main unit, cooling tower, cooling water pump, one-level chilled water pump, motor-driven valve, is made up of secondary water pump, end disk manage-style machine, temperature controller two-port valve with cool equipment;
Described air-conditioning electric control system comprises the control of secondary water pump, main line control, the control of one-level chilled water pump, cooling water pump control, cooling tower control, cold water main unit control;
It is characterized in that:
Described air-conditioner water system part, be provided with two above secondary water pumps, the evaporimeter of cold water main unit, the one-level chilled water pump, motor-driven valve, freeze water and store the series connection of release tank, the cold junction that freezes water storage release tank is connected with the chilled water feed pipe of cooling equipment, the hot junction of freezing water storage release groove is connected with the chilled water backwater person in charge of cooling equipment, the water inlet pipe of secondary water pump supplies water to be responsible for the chilled water of cooling equipment and is connected, the outlet pipe of secondary water pump is connected with the chilled water water inlet pipe of end disk manage-style machine, and the chilled water outlet pipe of coil pipe blower fan is responsible for the chilled water backwater of cooling equipment and is connected;
The secondary water pump control of described air-conditioning electric control system, the temperature controller two-port valve phase line end of each group end coil pipe blower fan is electrically connected with the signal end of each contactor of the signal controlling case of secondary water pump control respectively, the power outlet end of contactor " closes " switch with time-delay and is electrically connected, and the power outlet end of delay switch is electrically connected with the contactor signal end of secondary water pump control cabinet.
2. the high-effect full-automatic water-cooled central air conditioner system of many circulations according to claim 1, it is characterized in that: the main line control of described air-conditioning electric control system, the control of one-level chilled water pump, cooling water pump control, cooling tower control, cold water main unit control, the power switch beginning of each group end fan coil temperature controller, with signal controlling case (K1 on the same group, K2, K3) corresponding contactor signal lead-in wire terminal is electrically connected, signal controlling case (K1, K2, K3) power supply is being electrically connected with the corresponding contactor signal of main control line signal case Kz lead-in wire terminal through contactor, K1, K2, corresponding each contactor leading-out terminal of K3 is electrically connected with the signal end of time-delay " branch " switch, time-delay " branch " Switching Power Supply leading-out terminal L4 and cooling water pump control cabinet KK1, cooling tower control cabinet KK2, the contactor 2 of one-level cooling water pump control cabinet KK3,4,6 signal lead-in wire terminals are electrically connected, and the outlet L3 through time-delay " branch " switch is not electrically connected with the contactor 8 signal lead-in wire terminals of host computer control case KK4; One-level chilled water pump power supply phase line wherein one is electrically connected with motor-driven valve E after through 5,6 contactors; The power outlet end that stores the release groove temperature controller is electrically connected with the corresponding contactor signal end of main control line signal case Kz, the corresponding contactor power outlet of Kz signal box end is electrically connected with the signal end of time-delay " branch " switch, time-delay " branch " Switching Power Supply leading-out terminal L2 is electrically connected with contactor 1,3, the 5 signal lead-in wire terminals of cooling water pump control cabinet KK1, cooling tower control cabinet KK2, one-level water pump control cabinet KK3, and the outlet L1 through time-delay " branch " switch is not electrically connected with the contactor 7 signal lead-in wire terminals of host computer control case KK4.
3. the high-effect full-automatic water-cooled central air conditioner system of many circulations according to claim 1, it is characterized in that: the high-pressure side of differential pressure controller is connected with the water inlet pipe of end, and low-pressure end is connected with the outlet pipe of end.
4. the high-effect full-automatic water-cooled central air conditioner system of many circulations according to claim 1 is characterized in that: of differential-pressure bypass valve is connected with the secondary pumping line, and the other end is connected with the secondary pump water inlet.
5. the high-effect full-automatic water-cooled central air conditioner system of many circulations according to claim 1 is characterized in that; Storing the release tank is a heat insulation trough, and the centre has baffle plate (wall) that cold and hot end is separated, and the feedwater flow that has living space above the baffle plate (wall) passes through.
6. the high-effect full-automatic water-cooled central air conditioner system of many circulations according to claim 1, it is characterized in that: the flow of one-level chilled water pump is greater than secondary water pump total flow.
7. the high-effect full-automatic water-cooled central air conditioner system that circulates according to claim 1 is characterized in that more: it is consistent with main frame return water temperature control setting upper and lower limit to store the setting that discharges tank temperature controller temperature upper and lower limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310117469 CN1235000C (en) | 2003-12-22 | 2003-12-22 | Multiple circulation high efficiency full automatic water cooling central air conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310117469 CN1235000C (en) | 2003-12-22 | 2003-12-22 | Multiple circulation high efficiency full automatic water cooling central air conditioner system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1554904A CN1554904A (en) | 2004-12-15 |
| CN1235000C true CN1235000C (en) | 2006-01-04 |
Family
ID=34337817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310117469 Expired - Fee Related CN1235000C (en) | 2003-12-22 | 2003-12-22 | Multiple circulation high efficiency full automatic water cooling central air conditioner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1235000C (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HK1086984A2 (en) * | 2006-02-23 | 2006-09-29 | David Man Chu Lau | An industrial process efficiency method and system |
| CN100424431C (en) * | 2006-09-30 | 2008-10-08 | 四川长虹电器股份有限公司 | Cooling system for cold and hot water machine set with fan disc pipe |
| CN101813347B (en) * | 2009-02-24 | 2013-01-23 | 胡光南 | Energy saving method for water system of central air conditioner and micro-energy-consumption water system |
| CN102003768A (en) * | 2010-11-02 | 2011-04-06 | 深圳达实智能股份有限公司 | Energy-saving control method and controller of central air conditioner |
| CN102519095A (en) * | 2011-12-02 | 2012-06-27 | 广州铁路职业技术学院 | Chilled water system for central air-conditioning system of high-rise building and control method thereof |
| CN103383121B (en) * | 2012-05-03 | 2016-08-31 | 南京市建筑设计研究院有限责任公司 | Regional air conditioner dispersion secondary pumping system |
| CN102717500B (en) * | 2012-06-15 | 2015-09-16 | 常州万家乐塑料有限公司 | Injection workshop cooling water recirculation system |
| CN102818326A (en) * | 2012-08-22 | 2012-12-12 | 清华大学 | Large temperature difference air conditioning system for heat extraction of data center and using method thereof |
| CN104885024B (en) * | 2012-12-12 | 2017-10-13 | 塞阿姆斯特朗有限公司 | Coordinated sensorless control system |
| CN103216912B (en) * | 2013-04-22 | 2015-08-26 | 河南理工大学 | Cooling tower is utilized to obtain the method for low cold width cooling water |
| CN103307711B (en) * | 2013-06-07 | 2016-08-24 | 昆山市远视商用空调工程有限公司 | Air-conditioner control system and control method |
| CN103411293B (en) * | 2013-09-05 | 2015-12-09 | 刘新民 | The cooling water system for air conditioning control method regulated based on end cold initiative and device |
| CN104515245B (en) * | 2013-09-26 | 2017-06-30 | 珠海格力电器股份有限公司 | control method and device of air conditioning system |
| CN106940046A (en) * | 2017-04-13 | 2017-07-11 | 深圳沃海森科技有限公司 | Use the centrifugation cooling water air conditioner unit of evaporator type condenser |
| CN109945460A (en) * | 2019-03-28 | 2019-06-28 | 中铁第四勘察设计院集团有限公司 | A kind of air conditioning cooling water secondary pump variable volume system and control method |
-
2003
- 2003-12-22 CN CN 200310117469 patent/CN1235000C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1554904A (en) | 2004-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1235000C (en) | Multiple circulation high efficiency full automatic water cooling central air conditioner system | |
| CN101334203B (en) | Method for enhancing cold-storage density of cold storage air conditioner system and cold storage air conditioner system | |
| EP2003402B1 (en) | A supercooled ice cold-storage unit, an air conditioning system using the same and a control method thereof | |
| CN210197600U (en) | Secondary pump variable flow chilled water system with energy storage device | |
| CN110848839B (en) | Regional cooling system and method capable of dynamically accumulating cold | |
| CN202216364U (en) | Intelligent network energy-saving control system for central air conditioner | |
| CN104613577A (en) | Internal-melt ice storage air-conditioning system and operating method thereof | |
| CN2826243Y (en) | Energy-saving building united energy source system with high-level condensation apparatus as core | |
| CN111442575A (en) | Adjustable refrigerating device and refrigerating adjusting method | |
| CN210840466U (en) | Data center air cooling cold source natural cooling system | |
| CN201382624Y (en) | Unit combined type parallel refrigerating unit | |
| CN204730381U (en) | Double evaporators dynamic ice cold storage system | |
| CN102072541B (en) | Cold storage type solar injection-compression combined refrigerator set | |
| CN216123342U (en) | Data center mixes cold source economizer system | |
| CN113923937B (en) | Energy-saving cooling control method and system for data center | |
| CN203323266U (en) | Air-cooling direct-current variable-frequency magnetic-levitation water chilling unit with natural cold source | |
| CN211781655U (en) | Regional cold supply system capable of dynamically accumulating cold | |
| CN203464414U (en) | Dynamic ice-storage system in two preheating modes | |
| CN201285128Y (en) | Ice cold-accumulation heat pump air-conditioning unit | |
| CN201935317U (en) | Cold accumulation solar energy injecting-compressing combined refrigerating unit | |
| CN115235052B (en) | Automatic adjusting control system of water chiller | |
| CN203443026U (en) | Control system for ice storage refrigeration plant room | |
| CN202613634U (en) | Energy-saving ice storage air conditioning system | |
| CN202648023U (en) | Integrated ice storage machine set and ice storage air condition | |
| CN115839524A (en) | Air conditioning system with dynamic ice storage function and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060104 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |