CN105240970A - Sea-chilled-water concentrated cold supplying system with auxiliary cold source and concentrated cold supplying method - Google Patents
Sea-chilled-water concentrated cold supplying system with auxiliary cold source and concentrated cold supplying method Download PDFInfo
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- CN105240970A CN105240970A CN201510660051.1A CN201510660051A CN105240970A CN 105240970 A CN105240970 A CN 105240970A CN 201510660051 A CN201510660051 A CN 201510660051A CN 105240970 A CN105240970 A CN 105240970A
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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Abstract
The invention relates to a sea-chilled-water concentrated cold supplying system with an auxiliary cold source and a concentrated cold supplying method. A similar system and method with the high energy utilization rate and the remarkable energy-conservation and emission-reduction effect do not exist at present. The sea-chilled-water concentrated cold supplying system comprises a water taking module, a rubber pipe with a steel ring and a cold extracting module. The sea-chilled-water concentrated cold supplying system is characterized in that the water taking module comprises a seawater pump, a seawater corrosion prevention pipe, a water tank overflow pipe, an adjusting water tank, a water tank pump, a convey pipe, a water amount regulating valve and a water tank pump frequency converter; and the water taking module is connected with the cold extracting module through the steel ring. The concentrated cold supplying method includes the steps that the seawater pump conveys low temperature seawater to the adjusting water tank through the seawater corrosion prevention pipe; the low temperature seawater is directionally conveyed to the cold extracting module through the water tank pump; and the low temperature seawater enters a front-arranged heat exchanger through the rubber pipe with the steel ring to carry out heat exchanging, and coil clean backwater is converted into clean water with the temperature ranging from 7 DEG C to 12 DEG C and flows out of the front-arranged heat exchanger. The sea-chilled-water concentrated cold supplying system is stable in running, high in energy utilization rate, flexible in using and remarkable in energy-conservation and emission-reduction effect.
Description
Technical field
The present invention relates to a kind of ocean chilled water central cooling system and central cooling method, especially relate to a kind of ocean chilled water central cooling system with auxiliary cold source and central cooling method.
Background technology
Huge low-temperature receiver is contained in marine resources, such as, just contain low-temperature receiver in Huanghai Cold Water Mass, Huanghai Cold Water Mass be winter Huanghai Sea water on top layer by cooling effect and being formed after sinking, therefore temperature is very low, central temperature only has 5-8 DEG C, from spring, sea heats gradually, epilimnion is there is in 5-7m depths, heat exchange between surface seawater and bottom seawater is intercepted, effectively ensure that lower floor's cold water not by the impact that upper strata heats, to summer, surface temperature is at about 28 DEG C, in, near-bottom temperature but only has 6 DEG C, the table bottom temperature difference reaches 22 DEG C, according to historic survey and data statistics, 8 DEG C of thermoisopleth area coverages are about 5.5 ten thousand km
2, 10 DEG C of thermoisopleth area coverages are about 14.3 ten thousand km
2, 12 DEG C of thermoisopleth area coverages are about 22.6 ten thousand km
2, shared by Huanghai Cold Water Mass, volume is about 5 × 1012m
3, with △ T=20 DEG C of calculating, contain heat 4 × 1020J, its calorie value is equivalent to 1.37 × 1010 tons of standard coals or 5.33 × 1012m
3natural gas.Therefore, the comprehensive utilization of Yellow Sea in summer cold water mass, the marine field be expected in " energy-saving and emission-reduction " national strategy plays a significant role, and as can be seen here, if the low-temperature receiver contained in marine resources can be able to development and utilization, will be conducive to energy-saving and emission-reduction greatly.
Now some are also had to utilize the technology of low-temperature receiver in ocean, if publication date is on 05 16th, 2007, publication number is in the Chinese patent of CN1963320, disclose the construction area air-conditioning system that a kind of ocean cooling running water makes refrigerant, the construction area air-conditioning system that this ocean cooling running water makes refrigerant comprises seawater filter, draw water pipeline, flow sensor, stop valve, seawater centrifugal multistage pump multiple centrifugal pump, triple valve, rapid filter, flocculation basin, secondary rapid filter, underground sea water storehouse, sea water pump, plate type heat exchanger, water-delivery pump, underground cold water storehouse, distribution pump, Air flow processor, clear water tanks, butterfly valve and return duct, will through rapid filter, flocculation basin, Mare Frigoris water after the process of secondary rapid filter in plate type heat exchanger with running water heat exchange, utilize municipal original underground pipe network for running water conveyance conduit, make it play water delivery, defeated cold dual-use function, makes full use of the cold of subsurface sea water, need not consume electric energy again to maintain the low-temperature receiver of air-conditioning system, for saving electrical expenses, but the structural design that this ocean cooling running water makes the construction area air-conditioning system of refrigerant is reasonable not, needs to consume running water.And for example publication date is on 03 27th, 2013, publication number is in the Chinese patent of CN102997493A, disclose a kind of Huanghai Cold Water Mass scale utilization system, this Huanghai Cold Water Mass scale utilization system comprises the draw water control unit of Huanghai Cold Water Mass extraction to sea level, as the fresh water circulatory system of cooling refrigeration equipment, seawater and freshwater is carried out the heat exchange unit of heat exchange, and accept the cultivation unit of the seawater after heat exchange; Heat exchange unit via sea-water heat-pump controller to cultivation unit conveying seawater, via fresh water heat pump controller to the fresh water of fresh water circulatory system conveying after heat exchange; by the control technology of drawing water of low cost; the extensive hot swapping that the energy zero expends and the combination of water source heat pump technology; reaching summer is the object that scale cooling is concentrated in city; but this Huanghai Cold Water Mass scale utilization system provides a design, concrete structure is not disclosed.
In sum, also do not have reasonable in design at present, operate steadily, energy utilization rate is high, the ocean chilled water central cooling system of effects of energy saving and emission reduction significantly with auxiliary cold source and central cooling method.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, operate steadily, energy utilization rate is high, use flexibly, the ocean chilled water central cooling system of effects of energy saving and emission reduction significantly with auxiliary cold source and central cooling method.
The present invention's adopted technical scheme that solves the problem is: the ocean chilled water central cooling system of this band auxiliary cold source comprises water module, sebific duct with steel ring and cold extraction module, its design feature is: described water module comprises sea water pump, seawater corrosion prevention pipeline, tank overflow, regulate water pot, water filter, check valve, water pressure table, water tank pump, transfer pipeline, water regulating valve and water tank pump frequency conversion device, the top of described adjustment water pot is provided with the irrigating gate for moisturizing, one end of described seawater corrosion prevention pipeline is connected with sea water pump, the other end of this seawater corrosion prevention pipeline is connected with adjustment water pot, described tank overflow is connected with adjustment water pot, one end of described transfer pipeline is connected with adjustment water pot, the other end of this transfer pipeline is connected with one end of sebific duct, described water filter, check valve, water pressure table, water tank pump and water regulating valve are installed on transfer pipeline, described water tank pump frequency conversion device is connected with water tank pump, described cold extraction module comprises aqueduct, preposition heat exchanger, outlet conduit, No. two magnetic valves, air-conditioner set for subsequent use, water return pipeline, No. three magnetic valves, seawater electromagnetic flowmeter, wind dish return pipe, clarified water pump, blast pipe, air bleeding valve, freezing outlet pipe, No. seven magnetic valves, No. five magnetic valves, freezing water inlet pipe, No. four magnetic valves, clear water electromagnetic flowmeter, a bypass, No. eight magnetic valves, No. two bypasses and No. six magnetic valves, described air-conditioner set for subsequent use comprises double-pipe condenser, filter, plate-type evaporator, gas-liquid separator and compressor, described double-pipe condenser is connected with filter by pipeline, described filter is connected with plate-type evaporator by pipeline, described plate-type evaporator is connected with gas-liquid separator by pipeline, described gas-liquid separator is connected with compressor by pipeline, described compressor is connected with double-pipe condenser by pipeline, one end of described aqueduct is connected with preposition heat exchanger, the other end of this aqueduct is connected with the other end of sebific duct, one end of described outlet conduit is connected with preposition heat exchanger, the other end of this outlet conduit is connected with double-pipe condenser, described No. two magnetic valves are arranged on outlet conduit, one end of described water return pipeline is connected with double-pipe condenser, described No. three magnetic valves and seawater electromagnetic flowmeter are installed on water return pipeline, one end of described wind dish return pipe is connected with preposition heat exchanger, the other end of this wind dish return pipe is connected with user side, described clarified water pump is arranged on wind dish return pipe, one end of described blast pipe is connected on wind dish return pipe, described air bleeding valve is arranged on blast pipe, one end of described freezing outlet pipe is connected with preposition heat exchanger, the other end of this freezing outlet pipe is connected with plate-type evaporator, described No. seven magnetic valves and No. five magnetic valves are installed on freezing outlet pipe, one end of described freezing water inlet pipe is connected with plate-type evaporator, the other end of this freezing water inlet pipe is connected with user side, described No. four magnetic valves and clear water electromagnetic flowmeter are installed on freezing water inlet pipe, one end of a described bypass is connected on wind dish return pipe, the other end of this bypass is connected on freezing outlet pipe, described No. eight magnetic valves are arranged in a bypass, one end of described No. two bypasses is connected on freezing outlet pipe, the other end of these No. two bypasses is connected on freezing water inlet pipe, described No. six magnetic valves are arranged in No. two bypasses.
As preferably, ocean of the present invention chilled water central cooling system also comprises precious culturing marine products field and backwater draws pipeline, the other end of described water return pipeline is connected with precious culturing marine products field, and described backwater is drawn pipeline and is connected with precious culturing marine products field.
As preferably, ocean of the present invention chilled water central cooling system also comprises water tank and filling pipe, and one end of described filling pipe is connected with water tank, and the other end of this filling pipe is connected with wind dish return pipe.
As preferably, cold extraction module of the present invention also comprises a water flow switch and No. two water flow switches, and a described water flow switch is arranged on water return pipeline, and described No. two water flow switches are arranged on freezing water inlet pipe.
As preferably, in cold extraction module of the present invention, the other end of one end of one end of described freezing outlet pipe, No. seven magnetic valves, the other end of a bypass, No. two bypasses, No. five magnetic valves and freezing outlet pipe is arranged in order along freezing outlet pipe, and the other end and the clear water electromagnetic flowmeter of one end of described freezing water inlet pipe, No. four magnetic valves, No. two bypasses are arranged in order along freezing water inlet pipe.
As preferably, outlet conduit of the present invention is provided with the point for measuring temperature going out temperature for measuring preposition heat exchanger seawater, described aqueduct is provided with No. two points for measuring temperature entering temperature for measuring preposition heat exchanger seawater, described freezing outlet pipe is provided with No. three points for measuring temperature for measuring preposition heat exchanger Graceful temperature, described wind dish return pipe is provided with No. four points for measuring temperature entering temperature for measuring preposition heat exchanger clear water, described freezing water inlet pipe is provided with No. five points for measuring temperature for measuring plate-type evaporator Graceful temperature, described freezing outlet pipe is provided with No. six points for measuring temperature entering temperature for measuring plate-type evaporator clear water, described water return pipeline is provided with No. seven points for measuring temperature going out temperature for measuring double-pipe condenser seawater, described outlet conduit is provided with No. eight points for measuring temperature entering temperature for measuring double-pipe condenser seawater, described freezing water inlet pipe is provided with No. nine points for measuring temperature for measuring start/stop of compressor temperature.
As preferably, the exhaust copper pipe of compressor of the present invention and return-air copper pipe are all provided with high voltage protective switch, low-voltage protective switch, Pressure gauge monitoring instrument and needle-valve maintenance interface.
As preferably, cold extraction module of the present invention also comprises drainpipe, and one end of described drainpipe is connected on outlet conduit.
As preferably, air-conditioner set for subsequent use of the present invention also comprises flow controller, and described flow controller is arranged on the pipeline between filter and plate-type evaporator.
As preferably, double-pipe condenser of the present invention is coaxial sleeve condenser.
A kind of central cooling method using the ocean chilled water central cooling system of described band auxiliary cold source, its feature is: the step of described central cooling method is: No. six magnetic valves are opened, No. four magnetic valves, No. five magnetic valves and No. eight closed electromagnetic valves, low temperature seawater is transported to adjustment water pot by seawater corrosion prevention pipeline by sea water pump, cold extraction module is transported to by water tank pump orientation, water regulating valve is serially connected in transfer pipeline, is 3.2m by water regulating valve setting seawater flow
3/ h, low temperature seawater enters preposition heat exchanger by being with the sebific duct of steel ring, after carrying out countercurrent heat exchange with the clear water backwater of 12 ~ 16 DEG C in user side, ocean temperature is brought up to 12 DEG C and is flowed out preposition heat exchanger, enter the exchange heat that double-pipe condenser participates in air-conditioner set for subsequent use again, after heat in Absorption by Sea Water double-pipe condenser, temperature gets a promotion, and now the temperature of seawater is at 12 ~ 16 DEG C, the freezing clear water temperature that user side produces is at 12 ~ 16 DEG C, and enter cold extraction module through wind dish return pipe, the coil pipe clear water backwater of 12 ~ 16 DEG C enters preposition heat exchanger and low temperature seawater carries out heat exchange, become the clear water of 7 ~ 12 DEG C and flow out preposition heat exchanger, when the temperature of in the past putting the clear water that heat exchanger flows out is more than 12 DEG C, air-conditioner set for subsequent use starts, No. six closed electromagnetic valves, No. four magnetic valves, No. five magnetic valves and No. eight magnetic valves are opened, now clear water flows to as other by preposition heat exchanger, and enter plate-type evaporator, air-conditioner set for subsequent use starts electricity refrigeration, until when the clear water temperature before entering into user side drops to 7 DEG C, air-conditioner set for subsequent use is shut down, No. six magnetic valves are opened, No. four magnetic valves, No. five magnetic valves and No. eight closed electromagnetic valves, circulation like this.
The present invention compared with prior art, has the following advantages and effect: structure is simple, reasonable in design, stable, dependable performance, uses flexibly, is conducive to energy-saving and emission-reduction.The low temperature seawater of natural cooling source can be extracted summer at selected Huanghai Cold Water Mass dry point, be delivered to the preposition heat exchanger of seawater through sea water pump and seawater pipeline, displace cold to refrigerating medium (clear water), be directly supplied to building for air-conditioning.Owing to being the free low-temperature receiver of nature, efficiency is high, only expends the power of seawater and sea water pump.Air-conditioner set for subsequent use is in stand-by state under normal duty working condition, do not run, only have when the thermic load in building has extreme variation, natural cooling source just starts under can not meeting situation, and put into operation, now, the low temperature seawater entering the preposition heat exchanger of seawater displaces cold to after refrigerating medium (clear water), and refrigerating medium is discharged after entering the double-pipe condenser of air-conditioner set for subsequent use again.Through the refrigerating medium (clear water) that preposition heat exchanger displaces, first through the plate-type evaporator of air-conditioner set for subsequent use, then enter building for refrigeration, to meet the needs of client's air-conditioning.
The present invention by from extracting low temperature seawater in the sea, direct replaces clear water chilled water, meets user and to freeze the requirement used.Settled backup air conditioning system, when change appears in thermic load, backup air conditioning system participates in running simultaneously.When running under normal seawater operating mode, unit for subsequent use is without the need to starting, and efficiency is compared with conventional air conditioning system and the energy-conservation 50%-60% of seawater source heat pump system, and heat exchanger effectiveness is higher than 75%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ocean chilled water central cooling system with auxiliary cold source in the embodiment of the present invention.
Fig. 2 is the structural representation in the embodiment of the present invention after water module amplification.
Fig. 3 is the structural representation in the embodiment of the present invention after the amplification of cold extraction module.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment.
See Fig. 1 to Fig. 3, the ocean chilled water central cooling system with auxiliary cold source in the present embodiment comprises water module I, the sebific duct 12 of band steel ring, cold extraction module II, precious culturing marine products field 24, backwater extraction pipeline 29, water tank 25 and filling pipe 41.
Water module I in the present embodiment comprises sea water pump 1, seawater corrosion prevention pipeline 2, tank overflow 3, regulate water pot 4, water filter 5, check valve 6, water pressure table 7, water tank pump 9, transfer pipeline 10, water regulating valve 11 and water tank pump frequency conversion device 30, the top of adjustment water pot 4 is provided with the irrigating gate 8 for moisturizing, one end of seawater corrosion prevention pipeline 2 is connected with sea water pump 1, the other end of this seawater corrosion prevention pipeline 2 is connected with the top of adjustment water pot 4, one end of tank overflow 3 is connected with the top of adjustment water pot 4, one end of transfer pipeline 10 is connected with adjustment water pot 4, and the other end of this transfer pipeline 10 is connected with one end of sebific duct 12, water filter 5, check valve 6, water pressure table 7, water tank pump 9 and water regulating valve 11 are installed on transfer pipeline 10, one end of transfer pipeline 10, water filter 5, check valve 6, water pressure table 7, water tank pump 9, the other end of water regulating valve 11 and transfer pipeline 10 is arranged in order along transfer pipeline 10, and water tank pump frequency conversion device 30 is connected with water tank pump 9, and water tank pump frequency conversion device 30 pairs of water tank pumps 9 carry out frequency conversion to control water yield size.
Cold extraction module II in the present embodiment comprises aqueduct 88, preposition heat exchanger 13, outlet conduit 86, No. two magnetic valves 92, air-conditioner set for subsequent use, water return pipeline 87, No. three magnetic valves 93, seawater electromagnetic flowmeter 23, a water flow switch 89, wind dish return pipe 81, clarified water pump 15, blast pipe 16, air bleeding valve 99, freezing outlet pipe 82, No. seven magnetic valves 97, No. five magnetic valves 95, freezing water inlet pipe 83, No. two water flow switches 26, No. four magnetic valves 94, clear water electromagnetic flowmeter 14, a bypass 84, No. eight magnetic valves 98, No. two bypasses 85, No. six magnetic valves 96 and drainpipe 31, wherein, double-pipe condenser 19 is coaxial sleeve condenser.
Air-conditioner set for subsequent use in the present embodiment comprises double-pipe condenser 19, filter 21, plate-type evaporator 17, gas-liquid separator 20, compressor 18 and flow controller 22, double-pipe condenser 19 is connected with filter 21 by pipeline, filter 21 is connected with plate-type evaporator 17 by pipeline, plate-type evaporator 17 is connected with gas-liquid separator 20 by pipeline, gas-liquid separator 20 is connected with compressor 18 by pipeline, compressor 18 is connected with double-pipe condenser 19 by pipeline, and flow controller 22 is arranged on the pipeline between filter 21 and plate-type evaporator 17.The exhaust copper pipe of compressor 18 and return-air copper pipe are all provided with high voltage protective switch, low-voltage protective switch, Pressure gauge monitoring instrument and needle-valve maintenance interface usually.Compressor 18 is inputted by electric energy, drives the phase transformation of heat transferring medium in air-conditioner set freon pipe-line system for subsequent use.The composition of air-conditioner set for subsequent use can adopt the machine set type in national regulations.
One end of aqueduct 88 in the present embodiment is connected with preposition heat exchanger 13, the other end of this aqueduct 88 is connected with the other end of sebific duct 12, one end of outlet conduit 86 is connected with preposition heat exchanger 13, the other end of this outlet conduit 86 is connected with double-pipe condenser 19, No. two magnetic valves 92 are arranged on outlet conduit 86, one end of water return pipeline 87 is connected with double-pipe condenser 19, and No. three magnetic valves 93 and seawater electromagnetic flowmeter 23 are installed on water return pipeline 87.
One end of wind dish return pipe 81 in the present embodiment is connected with preposition heat exchanger 13, the other end of this wind dish return pipe 81 is connected with user side 28, clarified water pump 15 is arranged on wind dish return pipe 81, one end of blast pipe 16 is connected on wind dish return pipe 81, air bleeding valve 99 is installed on the exhaust pipe 16, one end of freezing outlet pipe 82 is connected with preposition heat exchanger 13, the other end of this freezing outlet pipe 82 is connected with plate-type evaporator 17, and No. seven magnetic valves 97 and No. five magnetic valves 95 are installed on freezing outlet pipe 82.
One end of freezing water inlet pipe 83 in the present embodiment is connected with plate-type evaporator 17, the other end of this freezing water inlet pipe 83 is connected with user side 28, No. four magnetic valves 94 and clear water electromagnetic flowmeter 14 are installed on freezing water inlet pipe 83, one end of a bypass 84 is connected on wind dish return pipe 81, the other end of this bypass 84 is connected on freezing outlet pipe 82, No. eight magnetic valves 98 are arranged in a bypass 84, one end of No. two bypasses 85 is connected on freezing outlet pipe 82, the other end of these No. two bypasses 85 is connected on freezing water inlet pipe 83, No. six magnetic valves 96 are arranged in No. two bypasses 85.
A water flow switch 89 in the present embodiment is arranged on water return pipeline 87, and No. two water flow switches 26 are arranged on freezing water inlet pipe 83, and one end of drainpipe 31 is connected on outlet conduit 86.
The other end of the other end of one end of freezing outlet pipe 82,97, the bypass 84 of No. seven magnetic valves in the present embodiment, one end of No. two bypasses 85, No. five magnetic valves 95 and freezing outlet pipe 82 is arranged in order along freezing outlet pipe 82, and the other end and the clear water electromagnetic flowmeter 14 of one end of freezing water inlet pipe 83,94, No. two bypasses 85 of No. four magnetic valves are arranged in order along freezing water inlet pipe 83.
In the present embodiment, the other end of water return pipeline 87 is connected with precious culturing marine products field 24, and backwater is drawn pipeline 29 and is connected with precious culturing marine products field 24.One end of filling pipe 41 is connected with water tank 25, and the other end of this filling pipe 41 is connected with wind dish return pipe 81.
Outlet conduit 86 in the present embodiment is provided with the point for measuring temperature T1 going out temperature for measuring preposition heat exchanger seawater, aqueduct 88 is provided with No. two point for measuring temperature T2 entering temperature for measuring preposition heat exchanger seawater, freezing outlet pipe 82 is provided with No. three point for measuring temperature T3 for measuring preposition heat exchanger Graceful temperature, wind dish return pipe 81 is provided with No. four point for measuring temperature T4 entering temperature for measuring preposition heat exchanger clear water, freezing water inlet pipe 83 is provided with No. five point for measuring temperature T5 for measuring plate-type evaporator Graceful temperature, freezing outlet pipe 82 is provided with No. six point for measuring temperature T6 entering temperature for measuring plate-type evaporator clear water, water return pipeline 87 is provided with No. seven point for measuring temperature T7 going out temperature for measuring double-pipe condenser seawater, outlet conduit 86 is provided with No. eight point for measuring temperature T8 entering temperature for measuring double-pipe condenser seawater, freezing water inlet pipe 83 is provided with No. nine point for measuring temperature T9 for measuring start/stop of compressor temperature.
Use the step of the central cooling method of the ocean chilled water central cooling system of band auxiliary cold source as follows in the present embodiment.
No. six magnetic valves 96 are opened, No. four magnetic valves 94, No. five magnetic valves 95 and No. eight magnetic valves 98 are closed, low temperature seawater is transported to adjustment water pot 4 by seawater corrosion prevention pipeline 2 by sea water pump 1, the temperature of low temperature seawater can be low to moderate 6 DEG C, as in 4 ~ October of summer, just there is the low temperature cold water body of 6 ~ 14 DEG C in about 30 meters, the Huanghai Sea specific region degree of depth, seawater corrosion prevention pipeline 2 has the function preventing seawater corrosion, the top of adjustment water pot 4 is provided with the tank overflow 3 for limiting internal system water level and stable hydraulic pressure effect, the top of water pot 4 is regulated to be provided with the irrigating gate 8 with moisturizing effects, in seawater pipe, low temperature seawater orientation is transported to cold extraction module II by water tank pump 9.Transfer pipeline 10 adopts stainless steel tube, and water regulating valve 11 is serially connected in transfer pipeline 10, has the effect of Maintenance and Repair system, is 3.2m by the seawater flow of water regulating valve 11 initialization system
3/ h, water tank pump 9 can carry out the VFC water yield by water tank pump frequency conversion device 30, and water module I is docked with cold extraction module II by the sebific duct 12 of band steel ring.
The temperature of low temperature seawater is low to moderate 6 DEG C; low temperature seawater enters preposition heat exchanger 13 by the sebific duct 12 of band steel ring; after carrying out countercurrent heat exchange with the clear water backwater of 12 ~ 16 DEG C produced in the air-conditioning of the thermic load end of user side 28; ocean temperature is brought up to 12 DEG C and is flowed out preposition heat exchanger 13; enter the exchange heat that double-pipe condenser 19 participates in air-conditioner set for subsequent use again; at double-pipe condenser 19 port of export, a water flow switch 89, electromagnetic flowmeter 23 and No. three magnetic valves 93 are installed, play the effect of monitoring flow and protection unit safety operation.In Absorption by Sea Water double-pipe condenser 19 high temperature and high pressure gaseous refrigerant R22 heat after temperature get a promotion, now the temperature of seawater is probably the scope of 12 ~ 16 DEG C, it is the ocean temperature of good precious culturing marine products, these seawater of 12 ~ 16 DEG C are transported to precious culturing marine products field 24 by water return pipeline 87 and are used for aquaculture, after utilizing, draw pipeline 29 by backwater again flow back to sea.
In the freezing water route of clear water, the freezing clear water temperature after thermic load temperature rise is absorbed at 12 ~ 16 DEG C from the user side 28 of fan coil, these clear water of 12 ~ 16 DEG C enter cold extraction module II through wind dish return pipe 81, at the clear water backwater section of cold extraction module II, blast pipe 16 and air bleeding valve 99 are installed, the air in water system is got rid of during for running first, water tank 25 is poured water by pipe break valve and some clear water is poured into clear water pipeline system, the coil pipe clear water backwater of 12 ~ 16 DEG C enters preposition heat exchanger 13 and carries out heat exchange with low temperature seawater, the clear water of 12 ~ 16 DEG C becomes the clear water of 7 ~ 12 DEG C and flows out preposition heat exchanger 13, after setting exchanges, terminal temperature difference can reach 1 DEG C, namely the clear water that the seawater entering 6 DEG C can displace 7 DEG C is most ideal value, clear water can require automatically to identify whether to flow to preposition heat exchanger 13 and plate-type evaporator 17 according to temperature control logic, be air-conditioner set start/stop of compressor temperature control point for subsequent use for measuring No. nine point for measuring temperature T9 of start/stop of compressor temperature, the start and stop temperature of air-conditioner set compressor for subsequent use can by user's sets itself, can be set as that air-conditioner set for subsequent use starts when temperature is more than 12 DEG C, No. six magnetic valves 96 cut out, No. four magnetic valves 94 and No. five magnetic valves 95 are opened, No. eight magnetic valves 98 are opened, now clear water pipeline flows to as other by preposition heat exchanger 13, namely bypass is carried out to preposition heat exchanger 13, directly enter plate-type evaporator 17, air-conditioner set for subsequent use starts electricity refrigeration, until when the clear water temperature before entering into user side 28 drops to 7 DEG C, air-conditioner set for subsequent use is shut down, No. six magnetic valves 96 are opened, No. four magnetic valves 94 and No. five magnetic valves 95 are closed, No. eight magnetic valves 98 cut out, circulation like this, when low temperature seawater temperature can displace the cold clear water that can meet serviceability temperature requirement all the time, if the temperature at for measuring start/stop of compressor temperature No. nine point for measuring temperature T9 place is below 12 DEG C, air-conditioner set for subsequent use can need not be started shooting all the time, certainly, temperature can also be raised in the number range below 16 DEG C as required.Clear water electromagnetic flowmeter 14 is for the discharge measured with monitor clear water pipeline.
The main control logic of the central cooling method of the ocean chilled water central cooling system of band auxiliary cold source is used to be undertaken by the part that cooks noodle in the present embodiment.
(1), refrigeration time under the rated load of user side 28, the method for operation that the low temperature clarified water pump access customer end 28 directly adopting the low temperature seawater in 6 DEG C, seabed to displace 7 DEG C ~ 12 DEG C carries out freezing.Now, No. two magnetic valves 92, No. three magnetic valves 93, No. six magnetic valves 96 and No. seven magnetic valves 97 are opened; No. four magnetic valves 94, No. five magnetic valves 95 and No. eight magnetic valves 98 are closed; Sea water pump 1 and clarified water pump 15 are opened.
(2), when detecting that the clear water chilled water leaving water temperature that displaces is higher than 12 DEG C, No. two magnetic valves 92, No. three magnetic valves 93, No. four magnetic valves 94, No. five magnetic valves 95, No. seven magnetic valves 97 and No. eight magnetic valves 98 are opened; No. six magnetic valves 96 cut out.Sea water pump 1 and clarified water pump 15 keep running.After 3 minutes, air-conditioner set for subsequent use puts into operation.
(3), when clear water chilled water leaving water temperature being detected at 7 DEG C, air-conditioner set for subsequent use is out of service.
(4), compressor 18 is when opening, minimum apart from the front time interval of once shutting down 5 minutes.
(5), when system malfunctions, unit proceeds to stopped status immediately, and sea water pump 1 and clarified water pump 15 stop, if now air-conditioner set for subsequent use is in running status, air-conditioner set for subsequent use also needs to stop simultaneously.Shut down rear No. two magnetic valves 92, No. three magnetic valves 93, No. four magnetic valves 94, No. five magnetic valves 95, No. six magnetic valves 96, No. seven magnetic valves 97 and No. eight magnetic valves 98 are all held open.
Ocean chilled water central cooling system with auxiliary cold source in the present embodiment is compared with conventional air conditioning system and seawater source heat pump system energy-conservation 60%, and the ocean temperature condition of applicable precious marine prods cultivation can be provided, belong to the ocean energy power-saving technology of renewable green energy resource.Ocean chilled water central cooling system with auxiliary cold source in the present embodiment effectively can utilize the cold water mass temperature difference phenomenon in the Huanghai Sea, provides key technology to support for utilizing the central cooling industrialization of Huanghai Cold Water Mass resource feasible region.The reasonable in design of the ocean chilled water central cooling system with auxiliary cold source in the present embodiment, operate steadily, energy utilization rate is high, and use flexibly, effects of energy saving and emission reduction is remarkable.
In addition, it should be noted that, the specific embodiment described in this description, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to structure example of the present invention explanation.The equivalence change that structure, feature and the principle of all foundations described in inventional idea of the present invention are done or simple change, be included in the protection domain of patent of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (10)
1. the ocean chilled water central cooling system with auxiliary cold source, comprise water module, sebific duct with steel ring and cold extraction module, it is characterized in that: described water module comprises sea water pump, seawater corrosion prevention pipeline, tank overflow, regulate water pot, water filter, check valve, water pressure table, water tank pump, transfer pipeline, water regulating valve and water tank pump frequency conversion device, the top of described adjustment water pot is provided with the irrigating gate for moisturizing, one end of described seawater corrosion prevention pipeline is connected with sea water pump, the other end of this seawater corrosion prevention pipeline is connected with adjustment water pot, described tank overflow is connected with adjustment water pot, one end of described transfer pipeline is connected with adjustment water pot, the other end of this transfer pipeline is connected with one end of sebific duct, described water filter, check valve, water pressure table, water tank pump and water regulating valve are installed on transfer pipeline, described water tank pump frequency conversion device is connected with water tank pump, described cold extraction module comprises aqueduct, preposition heat exchanger, outlet conduit, No. two magnetic valves, air-conditioner set for subsequent use, water return pipeline, No. three magnetic valves, seawater electromagnetic flowmeter, wind dish return pipe, clarified water pump, blast pipe, air bleeding valve, freezing outlet pipe, No. seven magnetic valves, No. five magnetic valves, freezing water inlet pipe, No. four magnetic valves, clear water electromagnetic flowmeter, a bypass, No. eight magnetic valves, No. two bypasses and No. six magnetic valves, described air-conditioner set for subsequent use comprises double-pipe condenser, filter, plate-type evaporator, gas-liquid separator and compressor, described double-pipe condenser is connected with filter by pipeline, described filter is connected with plate-type evaporator by pipeline, described plate-type evaporator is connected with gas-liquid separator by pipeline, described gas-liquid separator is connected with compressor by pipeline, described compressor is connected with double-pipe condenser by pipeline, one end of described aqueduct is connected with preposition heat exchanger, the other end of this aqueduct is connected with the other end of sebific duct, one end of described outlet conduit is connected with preposition heat exchanger, the other end of this outlet conduit is connected with double-pipe condenser, described No. two magnetic valves are arranged on outlet conduit, one end of described water return pipeline is connected with double-pipe condenser, described No. three magnetic valves and seawater electromagnetic flowmeter are installed on water return pipeline, one end of described wind dish return pipe is connected with preposition heat exchanger, the other end of this wind dish return pipe is connected with user side, described clarified water pump is arranged on wind dish return pipe, one end of described blast pipe is connected on wind dish return pipe, described air bleeding valve is arranged on blast pipe, one end of described freezing outlet pipe is connected with preposition heat exchanger, the other end of this freezing outlet pipe is connected with plate-type evaporator, described No. seven magnetic valves and No. five magnetic valves are installed on freezing outlet pipe, one end of described freezing water inlet pipe is connected with plate-type evaporator, the other end of this freezing water inlet pipe is connected with user side, described No. four magnetic valves and clear water electromagnetic flowmeter are installed on freezing water inlet pipe, one end of a described bypass is connected on wind dish return pipe, the other end of this bypass is connected on freezing outlet pipe, described No. eight magnetic valves are arranged in a bypass, one end of described No. two bypasses is connected on freezing outlet pipe, the other end of these No. two bypasses is connected on freezing water inlet pipe, described No. six magnetic valves are arranged in No. two bypasses.
2. the ocean chilled water central cooling system of band auxiliary cold source according to claim 1, it is characterized in that: described ocean chilled water central cooling system also comprises precious culturing marine products field and backwater draws pipeline, the other end of described water return pipeline is connected with precious culturing marine products field, and described backwater is drawn pipeline and is connected with precious culturing marine products field.
3. the ocean chilled water central cooling system of band auxiliary cold source according to claim 1, it is characterized in that: described ocean chilled water central cooling system also comprises water tank and filling pipe, one end of described filling pipe is connected with water tank, and the other end of this filling pipe is connected with wind dish return pipe.
4. the ocean chilled water central cooling system of band auxiliary cold source according to claim 1, it is characterized in that: described cold extraction module also comprises a water flow switch and No. two water flow switches, a described water flow switch is arranged on water return pipeline, and described No. two water flow switches are arranged on freezing water inlet pipe.
5. the ocean chilled water central cooling system of band auxiliary cold source according to claim 1, it is characterized in that: in described cold extraction module, the other end of one end of one end of described freezing outlet pipe, No. seven magnetic valves, the other end of a bypass, No. two bypasses, No. five magnetic valves and freezing outlet pipe is arranged in order along freezing outlet pipe, and the other end and the clear water electromagnetic flowmeter of one end of described freezing water inlet pipe, No. four magnetic valves, No. two bypasses are arranged in order along freezing water inlet pipe.
6. the ocean chilled water central cooling system of band auxiliary cold source according to claim 1, it is characterized in that: described outlet conduit is provided with the point for measuring temperature going out temperature for measuring preposition heat exchanger seawater, described aqueduct is provided with No. two points for measuring temperature entering temperature for measuring preposition heat exchanger seawater, described freezing outlet pipe is provided with No. three points for measuring temperature for measuring preposition heat exchanger Graceful temperature, described wind dish return pipe is provided with No. four points for measuring temperature entering temperature for measuring preposition heat exchanger clear water, described freezing water inlet pipe is provided with No. five points for measuring temperature for measuring plate-type evaporator Graceful temperature, described freezing outlet pipe is provided with No. six points for measuring temperature entering temperature for measuring plate-type evaporator clear water, described water return pipeline is provided with No. seven points for measuring temperature going out temperature for measuring double-pipe condenser seawater, described outlet conduit is provided with No. eight points for measuring temperature entering temperature for measuring double-pipe condenser seawater, described freezing water inlet pipe is provided with No. nine points for measuring temperature for measuring start/stop of compressor temperature.
7. the ocean chilled water central cooling system of band auxiliary cold source according to claim 1, is characterized in that: the exhaust copper pipe of described compressor and return-air copper pipe are all provided with high voltage protective switch, low-voltage protective switch, Pressure gauge monitoring instrument and needle-valve maintenance interface.
8. the ocean chilled water central cooling system of band auxiliary cold source according to claim 1, is characterized in that: described cold extraction module also comprises drainpipe, and one end of described drainpipe is connected on outlet conduit.
9. the ocean chilled water central cooling system of band auxiliary cold source according to claim 1, is characterized in that: described air-conditioner set for subsequent use also comprises flow controller, and described flow controller is arranged on the pipeline between filter and plate-type evaporator.
10. one kind uses the central cooling method of the ocean chilled water central cooling system of the band auxiliary cold source as described in claim as arbitrary in claim 1-9, it is characterized in that: the step of described central cooling method is: No. six magnetic valves are opened, No. four magnetic valves, No. five magnetic valves and No. eight closed electromagnetic valves, low temperature seawater is transported to adjustment water pot by seawater corrosion prevention pipeline by sea water pump, cold extraction module is transported to by water tank pump orientation, water regulating valve is serially connected in transfer pipeline, is 3.2m by water regulating valve setting seawater flow
3/ h, low temperature seawater enters preposition heat exchanger by being with the sebific duct of steel ring, after carrying out countercurrent heat exchange with the clear water backwater of 12 ~ 16 DEG C in user side, ocean temperature is brought up to 12 DEG C and is flowed out preposition heat exchanger, enter the exchange heat that double-pipe condenser participates in air-conditioner set for subsequent use again, after heat in Absorption by Sea Water double-pipe condenser, temperature gets a promotion, and now the temperature of seawater is at 12 ~ 16 DEG C, the freezing clear water temperature that user side produces is at 12 ~ 16 DEG C, and enter cold extraction module through wind dish return pipe, the coil pipe clear water backwater of 12 ~ 16 DEG C enters preposition heat exchanger and low temperature seawater carries out heat exchange, become the clear water of 7 ~ 12 DEG C and flow out preposition heat exchanger, when the temperature of in the past putting the clear water that heat exchanger flows out is more than 12 DEG C, air-conditioner set for subsequent use starts, No. six closed electromagnetic valves, No. four magnetic valves, No. five magnetic valves and No. eight magnetic valves are opened, now clear water flows to as other by preposition heat exchanger, and enter plate-type evaporator, air-conditioner set for subsequent use starts electricity refrigeration, until when the clear water temperature before entering into user side drops to 7 DEG C, air-conditioner set for subsequent use is shut down, No. six magnetic valves are opened, No. four magnetic valves, No. five magnetic valves and No. eight closed electromagnetic valves, circulation like this.
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