CN104913510B - One kind printing and dyeing heat-treating machine control device and its control method - Google Patents
One kind printing and dyeing heat-treating machine control device and its control method Download PDFInfo
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Abstract
One kind printing and dyeing heat-treating machine control device and its control method, relate to the use of the control device and its control method of the heat pump fluid heater of dyeing waste water waste heat, more particularly to control device and the control method for the control device of a kind of dyeing waste water heat-treating machine for possessing three-tank two-way circulating heat pump Hot water units, including operating parameter setting module, water detects control module, water temperature detects control module, heat pump controller and electromagnetic valve driver;Operating parameter setting module is connected to water detection control module and water temperature detection control module, and liquid level sensor is connected to water detection control module;First and second cooling-water temperature sensor and leaving water temperature sensors are connected to the input of water temperature detection control module;Water temperature detects control module by electromagnetic valve driver, is connected to first and second magnetic valve and triple valve;Control device controls the aperture of water regulating valve according to the wastewater temperature of wastewater disposal basin, realizes small temperature difference turbulent-flow heat-exchanging, utilizes dyeing waste water waste heat hot water preparing.
Description
Technical field
The control device and its control method of the heat pump fluid heater of dyeing waste water waste heat are the present invention relates to the use of, especially
It is related to a kind of control device of dyeing waste water heat-treating machine for possessing three-tank two-way circulating heat pump Hot water units and for the control
The control method of device processed.
Background technology
, it is necessary to supply substantial amounts of production hot water, production hot water with boiler heating in the production process of printing and dyeing enterprise
Mainly there are two kinds of temperature requirements:More than 40 DEG C and more than 60 DEG C.On the other hand, it is raw plus the technique hot and cold water such as subsequent rinse
The higher spent hot water of more multi-temperature can be produced again during production, water temperature is at 35~70 DEG C.These spent hot waters generally can not after producing
Reuse, can only be exhausted directly to after the processing of corresponding requirements has been made in environment, the waste heat in these waste water not only can not profit
With to environment, there may be thermal pollution on the contrary.The COD concentration in dyeing waste water and chlorine ion concentration are very high simultaneously, simply
Recuperation of heat is difficult to be used.Existing hot water, steam, cold water, waste water flow are as shown in figure 1, in the flow shown in Fig. 1
In, on the one hand, the water entered from softening pond 11 in printing and dyeing production equipment 10 (dye vat) is low-temperature cold water, and water temperature generally only has 5
~20 DEG C, it is necessary to heat the temperature requirement that could meet dyeing and printing process, heating boiler is mostly steam boiler, coal-burning boiler or grill pan
Stove, such a mode of heating are non-energy-conservation and environmentally friendly mode.On the other hand, into the higher waste water of the temperature of wastewater disposal basin 20, it is necessary to
After the cooling of cooling bay 12, biochemical treatment tank 13 could be sent into and carry out biochemical treatment, these used heat are not only not used, on the contrary
Thermal pollution is produced to environment, and cools down and also needs to consume electric energy with course of conveying.
A kind of Chinese invention patent " energy-saving printing and dyeing water utilization method and system of recycling waste heat " (Chinese invention patent number
ZL200610027350.2, Authorization Notice No. CN100586868C) disclose a kind of energy-saving printing and dyeing water utilization side of recycling waste heat
Method and system, system include cold water storage cistern, technique productions equipment, waste water mixing pit, at waste water source source pump, hot-tub and biochemistry
Pond is managed, feature is:Because technique productions equipment is discharged into caused various waste heat clean waters in production process in waste water mixing pit,
Waste water source source pump recovery used heat is pumped into through waste water pump the cold water in waste heat tank is carried out to be heated into hot water, then supplied through hot water again
Answer pump that hot water is pumped into technique productions equipment to be used for production, form the energy-saving printing and dyeing water utilization system of recycling waste heat, its method
Including:The clean remaining hot water income of technique productions equipment discharge is arrived in waste water mixing pit;Reclaimed using waste water source source pump
Waste heat cold water, hot water are stored in hot-tub;Hot water supply technique productions equipment in hot-tub uses.The invention can be saved substantially
Energy consumption is saved, and improves the temperature difference into cold water-steam of technique productions equipment, heating tube road junction is not damaged because of expansion.But
It is that the prior art scheme has following defect:
1st, the technical scheme is by the clean remaining hot water in waste water mixing pit, is sent into conventional waste water source source pump recovery
Waste heat cold water, because the heat exchanger of common waste water source source pump can not receive unholiness or be given up containing aggressive chemistry
The spent hot water of liquid, the technical scheme are difficult to the actual requirement for meeting dyeing waste water recuperation of heat.
2nd, because the once heating heat pump water-heating machine of routine is using water regulating valve control water temperature, in order to meet printing and dyeing production
The water temperature requirement of technique, water regulating valve will be constantly in low discharge state to produce high-temperature-hot-water, and this does not only result in condenser
Heat exchange effect it is poor, the heating capacity and efficiency degradation of source pump, and in low discharge state water regulating valve
Aperture very little, it is easy to because blocking causes unit to cause water-carrying capacity abnormal and disorderly closedown;
3rd, conventional waste water source source pump, which produces high-temperature-hot-water, needs to operate in high load region always, the production of source pump
The product life-span can be also by large effect.
The content of the invention
The invention aims to provide a kind of control device for heat-treating machine of printing and dyeing, for controlling printing and dyeing heat treatment
The operation of machine, ensure that printing and dyeing heat-treating machine leaving water temperature meets dyeing and printing process requirement and do not influenceed by flow of inlet water, solve existing
There is the above-mentioned technical problem of printing and dyeing heat-treating machine.The technical solution adopted in the present invention is:
One kind printing and dyeing heat-treating machine control device, for possessing at the printing and dyeing of three-tank two-way circulating heat pump Hot water units heat
The operation control of reason machine, described three-tank two-way circulating heat pump Hot water units include first circulation pump, first circulation water tank, the
Two-cycle case and heat storage water tank, and the first magnetic valve, second solenoid valve and triple valve;The waste water of the printing and dyeing heat-treating machine
Refrigerant reheater is provided with pond and enters water preheater, enters water preheater and is connected in cold water inlet road, refrigerant reheater passes through
Second circulation pump, it is connected to the heating agent water route of heat-pump hot-water unit evaporator;It is characterized in that:
Described control device includes operating parameter setting module, water detection control module, and water temperature detects control module,
Heat pump controller and electromagnetic valve driver;
The operating parameter setting module is connected to water detection control module and water temperature detection control module, level sensing
Device is connected to the input of water detection control module, and the output end of water detection control module is connected to the defeated of heat pump controller
Enter end, the output end of heat pump controller is connected to the compressor of source pump, first circulation pump and second circulation pump;Water detects
Control module is also connected to electromagnetic valve driver by heat pump controller;
First cooling-water temperature sensor, the second cooling-water temperature sensor and leaving water temperature sensors are connected to water temperature detection control module
Input;Water temperature detects the output end of control module, by electromagnetic valve driver, is connected to the first magnetic valve, second solenoid valve
With the driving coil of triple valve;
The liquid level of described water detection control module detection heat storage water tank, when liquid level is less than water level lower limit, control
Source pump starts, the hot water preparing since the first heat cycles loop;When liquid level reaches water level higher limit, described water
It is out of service to detect control module control source pump, simultaneously closes off the first magnetic valve and second solenoid valve, stops water inlet;
Described printing and dyeing heat-treating machine control device continuously produces constant-temperature hot water by circulating execution following steps:
S10:Water temperature detection control module detects the first water tank water temperature, and the gentle triplet constant temperature hot-water line of the second Water in Water Tank goes out
Coolant-temperature gage;
S20:When the first water tank water temperature reaches set water temperature, triple valve switches to the connection of a-c mouths from a-b mouth connected states
State, into the second heat cycles loop running status;Meanwhile first magnetic valve open, utilize cold water intake pressure and cold and hot
Water temperature difference gravity, the constant-temperature hot water of heating will be completed in first circulation water tank, pushed up in heat storage water tank;
S30:When the second water tank water temperature reaches set water temperature, triple valve switches to the connection of a-b mouths from a-c mouth connected states
State, return to the first heat cycles loop running status;Meanwhile second solenoid valve is opened, cold water intake pressure and cold and hot is utilized
Water temperature difference gravity, the constant-temperature hot water of heating will be completed in second circulation water tank, pushed up in heat storage water tank;
S40:When entering first circulation water tank or second circulation water tank cold water makes leaving water temperature be less than set water temperature, water temperature
Detecting control module controls the first magnetic valve and second solenoid valve to close, and stops cold water water inlet.
A kind of preferable technical scheme of the printing and dyeing heat-treating machine control device of the present invention, it is characterised in that described first
Cooling-water temperature sensor and the second cooling-water temperature sensor, it is separately positioned on the bottom of first circulation water tank and second circulation water tank;Described
Leaving water temperature sensors are arranged on the exit passageway of triplet constant temperature hot-water line, and described liquid level sensor is arranged on heat storage water tank
It is internal.
A kind of superior technique scheme of the printing and dyeing heat-treating machine control device of the present invention, it is characterised in that described water inlet
The cold water inlet road of pre-heater inlet is provided with water regulating valve, and described control device also includes flow-control module;If
The wastewater temperature sensor in wastewater disposal basin is put, is connected to the input of flow-control module;Described control device passes through useless
Water temperature sensor obtains wastewater temperature, according to the wastewater temperature of wastewater disposal basin, controls the aperture of water regulating valve, makes to preheat into water
The leaving water temperature of device and the temperature difference of wastewater temperature are not more than 2 DEG C, realize small temperature difference turbulent-flow heat-exchanging.
Another object of the present invention is to provide for a kind of control method for above-mentioned printing and dyeing heat-treating machine control device.
Technical scheme is used by the present invention solves above-mentioned technical problem:
A kind of control method for above-mentioned printing and dyeing heat-treating machine control device, it is characterised in that comprise the following steps:
S100:Operating parameter setting module obtains water temperature setting value, water level higher limit and water level lower limit;
S200:Water detection control module detection heat storage water tank liquid level;
S220:If heat storage water tank liquid level >=water level higher limit, first and second magnetic valve is closed, source pump is shut down, and returns to step
Rapid S200;Otherwise, S240 is gone to step;
S240:If heat storage water tank liquid level < water level lower limits, source pump starts, and triple valve switches to a-b mouth connected states
State;Go to step S300;
S300:Water temperature detection control module detects the first water tank water temperature, the gentle triplet constant temperature hot-water line of the second Water in Water Tank
Leaving water temperature;
S320:If leaving water temperature < set water temperatures, the first magnetic valve and second solenoid valve are closed, and stop cold water water inlet;
S340:If the first water tank water temperature > set water temperatures, triple valve switch to a-c mouth connected states, the first magnetic valve is beaten
Open, go to step S200;Otherwise, S360 is gone to step;
S360:If the second water tank water temperature > set water temperatures, triple valve switch to a-b mouth connected states, second solenoid valve is opened
Open, go to step S200;Otherwise, S300 is gone to step.
The beneficial effects of the invention are as follows:
1st, printing and dyeing heat-treating machine of the invention and its control method, printed using Teflon capillary radiation recuperator as absorption
Contaminate the refrigerant reheater of waste water residual heat and enter water preheater, the three-tank two-way circulating heat pump Hot water units system switched using temperature control
Hot water taking, using R134a environment friendly refrigerating fluids, it is ensured that leaving water temperature reaches less than 85 DEG C of any design temperature, and not
Influenceed by flow of inlet water, ensure the stability and continuation of dyeing process hot water.
2nd, printing and dyeing heat-treating machine of the invention and its control method, the aperture of water regulating valve is controlled according to wastewater temperature,
By adjusting flow of inlet water, make, into the leaving water temperature of water preheater close to wastewater temperature, to realize small temperature difference turbulent-flow heat-exchanging, both can be with
Ensure that running water fully carries out primary recuperation of heat, and can enough improves the heat exchange effect of condenser.
3rd, printing and dyeing heat-treating machine of the invention and its control method, produced using dyeing waste water waste heat hot needed for production technology
Water, wastewater temperature can be reduced, reduce used heat pollution, omitted the power consumption of cooling tower and waste water cooling booster pump, save operating cost,
Be advantageous to protect human lives and ecological environment.Equipment failure rate reduces, and system is stable, simple in construction, and promotion is strong.
Brief description of the drawings
Fig. 1 is the waste water residual heat handling process schematic diagram of existing dyeing and printing process;
Fig. 2 is the structural representation for the printing and dyeing heat-treating machine for possessing three-tank two-way circulating heat pump Hot water units;
Fig. 3 is the schematic diagram of the printing and dyeing heat-treating machine control device of the present invention;
Fig. 4 is the control method flow chart of the printing and dyeing heat-treating machine control device of the present invention.
The label of each part in above figure:10- printing and dyeing production equipments (dye vat), 11- softenings pond, 12- cooling bays,
13- biochemical treatment tanks, 1- compressors, 2- evaporators, 20- wastewater disposal basins, 21- refrigerant reheaters, 22- enter water preheater, 3- condensations
Device, 30- water regulating valves, the magnetic valves of 31- first, 32- second solenoid valves, 33- triple valves, 4- first circulation pumps, 40- water storages
Case, 41- first circulation water tanks, 42- second circulation water tanks, 43- triplet constant temperature hot-water lines, 5- restricting elements, 51- fluid reservoirs, 52-
Filter, 6- gas-liquid separators, 7- second circulation pumps, 8- control devices, 80- liquid level sensors, the cooling-water temperature sensors of 81- first,
The cooling-water temperature sensors of 82- second, 83- leaving water temperature sensors, 84- wastewater temperature sensors, 800- operating parameter setting modules,
810- waters detection control module, 820- water temperatures detection control module, 830- heat pump controllers, 840- electromagnetic valve drivers,
850- flow-control modules.
Embodiment
For better understanding of the above-mentioned technical proposal of the present invention, carry out with reference to the accompanying drawings and examples further
It is described in detail.Fig. 2 be the present invention printing and dyeing heat-treating machine one embodiment, including compressor 1, evaporator 2, condenser 3, section
The source pump of fluid element 5 and the connection composition of gas-liquid separator 6, the first circulation pump 4 and heat accumulation connected with the water route of condenser 3
Water tank 40, store the wastewater disposal basin 20 of dyeing and printing process waste discharge, and the control device 8 of control heat pump water-heating machine operation;
As shown in Fig. 2 described heat storage water tank 40 is connected to first circulation water tank by a triplet constant temperature hot-water line 43
41 and second circulation water tank 42, and controlled by the connection of the first magnetic valve 31, second solenoid valve 32 and triple valve 33, according to
Following connected mode forms the three-tank two-way circulating heat pump Hot water units of temperature control switching:
The circulation water inlet at first circulation water tank 41 and the top of second circulation water tank 42 is parallel-connected to the water outlet of condenser 3
Mouthful;First circulation water tank 41 and the circulating outlet of the bottom of second circulation water tank 42 are connected respectively to the b mouths and c of triple valve 33
Mouthful, a mouths of triple valve 33 are connected to the water inlet of condenser 3 by first circulation pump 4, form the of the control switching of triple valve 33
One heat cycles loop and the second heat cycles loop, wherein:
First heat cycles loop:Condenser->First circulation water tank->Triple valve b mouths->Triple valve a mouths->First circulation
Pump->Condenser;
Second heat cycles loop:Condenser->Second circulation water tank->Triple valve c mouths->Triple valve a mouths->First circulation
Pump->Condenser;
First circulation water tank 41 and the cooling water inlet of the bottom of second circulation water tank 42, pass through the first magnetic valve 31 and respectively
Two magnetic valves 32, are connected to cold water inlet road;First circulation water tank 41 and the hot water outlet at the top of second circulation water tank 42, lead to
Cross triplet constant temperature hot-water line 43 and be connected to heat storage water tank 40, form the first magnetic valve 31 and the control of second solenoid valve 32 first is permanent
Warm exhalant canal and the second constant-temperature effluent passage, wherein:
First constant-temperature effluent passage:Cold water water inlet->First magnetic valve->First circulation water tank->Triplet constant temperature hot-water line->
Heat storage water tank;
Second constant-temperature effluent passage:Cold water water inlet->Second solenoid valve->Second circulation water tank->Triplet constant temperature hot-water line->
Heat storage water tank;
It is provided with described wastewater disposal basin 20 and absorbs the refrigerant reheater 21 of waste water residual heat and enter water preheater 22;The refrigerant
The water inlet and delivery port of reheater 21, the heating agent water route of evaporator 2 is connected to by second circulation pump 7, is inhaled using heat medium water
The waste water residual heat of receipts, make the refrigerant thermal evaporation again in evaporator 2;The described water preheater 22 that enters is connected on the first magnetic valve 31
In the cold water inlet road of the entrance of second solenoid valve 32, enter three-tank two-way circulating heat pump hot water using waste water residual heat preheating
The cold water of unit;The waste heat of dyeing waste water passes to the refrigerant in evaporator 2 by heat medium water, recycles the system of source pump
The hot water circuit of refrigerant cycle and three-tank two-way circulating heat pump Hot water units, is transferred to the high-temperature-hot-water that source pump is produced
In, realize recycling for waste-rwater produced by dye printing waste heat;Cold water into preheater 22 can be running water or supply print
The softening cold water that dye production equipment 10 uses, as depicted in figs. 1 and 2.
Described printing and dyeing heat-treating machine continuously produces constant-temperature hot water by circulating execution following steps:
S1:When the water in first circulation water tank 41 in the first heat cycles loop heating to set water temperature Tsd after, it is described
Circulating water flow is switched to the second heat cycles loop, opened simultaneously by control device 8 by controlling the conducting state of triple valve 33
First magnetic valve 31, the hot water in first circulation water tank 41 is transported in heat storage water tank 40 by the first constant-temperature effluent passage;
S2:When the water in second circulation water tank 42 in the second heat cycles loop heating to set water temperature Tsd after, it is described
Circulating water flow is switched to the first heat cycles loop, opened simultaneously by control device 8 by controlling the conducting state of triple valve 33
Second solenoid valve 32, the hot water in second circulation water tank 42 is transported in heat storage water tank 40 by the second constant-temperature effluent passage;
S3:When the leaving water temperature Tcs for flowing through triplet constant temperature hot-water line 43 is less than set water temperature Tsd, described control dress
Put 8 controls and close the first magnetic valve 31 or second solenoid valve 32 in open mode, prevent to be not up to set water temperature Tsd water
Heat storage water tank 40 is flowed into, so as to ensure that the water temperature of heat storage water tank 40 keeps constant.
In the embodiment of the printing and dyeing heat-treating machine of the invention shown in Fig. 2, in first circulation water tank 41 and second circulation
The bottom of water tank 42, the first cooling-water temperature sensor 81 and the second cooling-water temperature sensor 82 are set respectively;In triplet constant temperature hot-water line 43
Exit passageway, leaving water temperature sensors 83 are set, liquid level sensor 80 is set in the inside of heat storage water tank 40;Described control dress
Put 8 and be connected to liquid level sensor 80, starting or stoping for source pump is controlled according to the liquid level Wyw of heat storage water tank 40;Described
Control device 8 is connected to the first cooling-water temperature sensor 81, the second cooling-water temperature sensor 82 and leaving water temperature sensors 83, according to Water in Water Tank
Gentle leaving water temperature controls the first magnetic valve 31, second solenoid valve 32 and triple valve 33, realizes the three-tank two-way of temperature control switching
Circulating heat pump Hot water units.
In the embodiment of the printing and dyeing heat-treating machine of the invention shown in Fig. 2, waste water temperature is provided with described wastewater disposal basin 20
Sensor 84 is spent, the described cold water inlet road for entering the entrance of water preheater 22 is provided with water regulating valve 30, described control
Device 8 obtains wastewater temperature by wastewater temperature sensor 84, and water, regulation water inlet are controlled according to the wastewater temperature of wastewater disposal basin 20
Flow makes to be not more than 2 DEG C into the leaving water temperature of water preheater and the temperature difference of wastewater temperature, realizes small temperature difference turbulent-flow heat-exchanging.Due to heat
The circulating water flow of pump assembly is not directly over heat storage water tank 40, and printing and dyeing heat-treating machine of the invention can ensure that leaving water temperature reaches
The aperture of less than 85 degree of various demand temperature, wastewater temperature and water regulating valve 30 does not interfere with leaving water temperature.
In the embodiment of the printing and dyeing heat-treating machine of the invention shown in Fig. 2, described restricting element 5 is electronic expansion
Valve, the on high-tension side refrigerant from compressor 1, refrigerant line, fluid reservoir 51, the filter of the condenser 3 passed sequentially through
52 and gas-liquid separator 6 return to the low-pressure side of compressor 1, form refrigerant circulation loop;Described control device 8 passes through control
The internal circulating load of the aperture regulation refrigerant of electric expansion valve.
According to one embodiment of the printing and dyeing heat-treating machine of the present invention, first circulation water tank 41 and second circulation water tank 42 are
Two water tanks with capacity, its capacity are to heat the 1/4~1/8 of water per hour under nominal condition, and in the present embodiment, first follows
The capacity of ring water tank 41 and second circulation water tank 42 is to heat the 1/6 of water per hour under nominal condition;The appearance of heat storage water tank 40
Amount heats the difference of water more than unit hour under unit hour peak heat water demand and nominal condition, to ensure in water use peak
Period can continuously provide enough hot water.
According to one embodiment of the printing and dyeing heat-treating machine of the present invention, described refrigerant reheater 21 and enter water preheater 22
For Teflon capillary radiation recuperator, each capillary radiation recuperator is restrained including at least one set of Teflon;Described Teflon
Tube bank is made up of more Teflon capillaries being connected in parallel, and the both ends of Teflon capillary are connected in parallel respectively, forms heat exchange
The water inlet and delivery port of device;Described Teflon tube bank coiling is immersed in wastewater disposal basin 20, via water inlet and delivery port stream
The clean water of capillary is crossed, absorbs the heat of waste water from wastewater disposal basin 20 by capillary wall;Single Teflon capillary
External diameter≤6mm, capillary wall thickness are 0.3~0.6mm, and the quantity and single channel operation length of Teflon capillary depend on capillary spoke
The flow and heat exchange area penetrated required for heat exchanger.According to a preferred embodiment of the invention, single Teflon capillary
External diameter is 5.72mm, and thickness 0.5mm, single channel operation length is 25 meters.Because Teflon material has the chemically stable of height
Property and excellent resistance to ag(e)ing, can bear all strong acid, including chloroazotic acid, hydrofluoric acid, concentrated hydrochloric acid, nitric acid, oleum, organic
Acid etc., the effect of highly basic, strong oxidizer, reducing agent and various organic solvents, in addition Teflon material there is extremely low friction system
Number, surface are not easy to adsorb pollutant, it is ensured that heat exchange effect.Therefore, Teflon capillary radiation recuperator is particularly suitable for growing
Phase is placed in the high rotten printing and dyeing waste liquid of high temperature, as the heat exchanger for absorbing dyeing waste water waste heat.
One embodiment of the control device 8 of the printing and dyeing heat-treating machine of the present invention is as shown in figure 3, including operating parameter setting
Module 800, water detection control module 810, water temperature detection control module 820, heat pump controller 830 and electromagnetic valve driver
840;
The operating parameter setting module 800 is connected to water detection control module 810 and water temperature detection control module
820;
Liquid level sensor 80 is connected to the input of water detection control module 810, and water detects the defeated of control module 810
Go out the input that end is connected to heat pump controller 830, the output end of heat pump controller 830 is connected to compressor 1, first circulation pump
4 and the motor of first circulation pump 7;Water detection control module 810 is also connected to electromagnetic valve driver by heat pump controller 830
840;
First cooling-water temperature sensor 81, the second cooling-water temperature sensor 82 and leaving water temperature sensors 83 are connected to water temperature detection control
The input of module 820;Water temperature detects the output end of control module 820, by electromagnetic valve driver 840, is connected to the first electricity
The driving coil of magnet valve 31, second solenoid valve 32 and triple valve 33;
Described water detection control module 810 detects the liquid level Wyw of heat storage water tank 40, when liquid level Wyw is less than under water level
During limit value Wxx, control source pump starts, the hot water preparing since the first heat cycles loop;When liquid level Wyw is reached on water level
During limit value Wsx, described water detection control module 810 controls source pump out of service, simultaneously closes off the first magnetic valve 31
With second solenoid valve 32, stop water inlet;
Described printing and dyeing heat-treating machine control device continuously produces constant-temperature hot water by circulating execution following steps:
S10:Water temperature detection control module 820 detects the first water tank water temperature Ts1, the second water tank water temperature Ts2 and triplet constant temperature
The leaving water temperature Tcs of hot-water line;
S20:When the first water tank water temperature Ts1 reaches set water temperature Tsd, triple valve 33 switches to from a-b mouth connected states
A-c mouth connected states, into the second heat cycles loop running status;Meanwhile first magnetic valve 31 open, intake using cold water
Pressure and cold and hot water temperature difference gravity, the constant-temperature hot water that the interior completion of first circulation water tank 41 is heated, top is arrived in heat storage water tank 40;
S30:When the second water tank water temperature Ts2 reaches set water temperature Tsd, triple valve 33 switches to from a-c mouth connected states
A-b mouth connected states, return to the first heat cycles loop running status;Meanwhile second solenoid valve 32 is opened, and is intake using cold water
Pressure and cold and hot water temperature difference gravity, the constant-temperature hot water that the interior completion of second circulation water tank 42 is heated, top is arrived in heat storage water tank 40;
S40:Leaving water temperature Tcs is set to be less than set water temperature when entering first circulation water tank 41 or the cold water of second circulation water tank 42
During Tsd, water temperature detection control module 820 controls the first magnetic valve 31 and second solenoid valve 32 to close, and stops cold water water inlet.
It is described to enter the entrance of water preheater 22 in the embodiment of the control device of the printing and dyeing heat-treating machine shown in Fig. 3
Cold water inlet road is provided with water regulating valve 30, and described control device 8 also includes flow-control module 850;It is arranged on useless
Wastewater temperature sensor 84 in pond 20, it is connected to the input of flow-control module 850;Described control device 8 passes through
Wastewater temperature sensor 84 obtains wastewater temperature, according to the wastewater temperature of wastewater disposal basin 20, controls the aperture of water regulating valve 30, makes
The temperature difference of the leaving water temperature and wastewater temperature that enter water preheater is not more than 2 DEG C, realizes small temperature difference turbulent-flow heat-exchanging.
Fig. 4 be the present invention printing and dyeing heat-treating machine control device control method flow chart embodiment, described control
Device is controlled using chip microprocessor, and its control process comprises the following steps:
S100:Operating parameter setting module obtains water temperature setting value Tsd, water level higher limit Wsx and water level lower limit Wxx;
S200:Water detection control module detection heat storage water tank liquid level Wyw;
S220:If heat storage water tank liquid level Wyw >=water level higher limit Wsx, first and second magnetic valve is closed, source pump is shut down,
Compressor, first circulation pump and second circulation pump are out of service, return to step S200;Otherwise, S240 is gone to step;
S240:If heat storage water tank liquid level Wyw < water level lower limit Wxx, source pump starts, compressor, first circulation pump
Brought into operation with second circulation pump, triple valve switches to a-b mouth connected states;Go to step S300;
S300:Water temperature detection control module detects the first water tank water temperature Ts1, the second water tank water temperature Ts2 and triplet constant temperature heat
The leaving water temperature Tcs of water pipe;
S320:If leaving water temperature Tcs < set water temperature Tsd, water temperature detection control module closes the first magnetic valve and second
Magnetic valve, stop cold water water inlet;According to a preferred embodiment of the printing and dyeing heat-treating machine control method of the present invention, in order to improve
Temperature controlled stability, control device 8 close the first magnetic valve and when leaving water temperature Tcs is lower than set water temperature Tsd 1 DEG C
Two magnetic valves.
S340:If the first water tank water temperature Tc1 > set water temperature Tsd, water temperature detection control module control triple valve switches to
A-c mouth connected states, the first magnetic valve are opened, and go to step S200;Otherwise, S360 is gone to step;
S360:If the second water tank water temperature Tc2 > set water temperature Tsd, water temperature detection control module control triple valve switches to
A-b mouth connected states, second solenoid valve are opened, and go to step S200;Otherwise, S300 is gone to step.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to the explanation present invention's
Technical scheme, and be not used as limitation of the invention, any connotation based on the present invention is to embodiment described above
Change, the modification made, it will all fall in the scope of the claims of the present invention.
Claims (3)
1. one kind printing and dyeing heat-treating machine control device, for possessing the printing and dyeing of three-tank two-way circulating heat pump Hot water units heat treatment
The operation control of machine, described three-tank two-way circulating heat pump Hot water units include first circulation pump, first circulation water tank, second
Cyclic water tank and heat storage water tank, and the first magnetic valve, second solenoid valve and triple valve;The wastewater disposal basin of the printing and dyeing heat-treating machine
Interior be provided with and enters water preheater at refrigerant reheater, enters water preheater and is connected in cold water inlet road, and refrigerant reheater passes through the
Two circulating pumps, it is connected to the heating agent water route of heat-pump hot-water unit evaporator;It is characterized in that:
Described control device includes operating parameter setting module, water detection control module, water temperature detection control module, flow
Control module, heat pump controller and electromagnetic valve driver;
The operating parameter setting module is connected to water detection control module and water temperature detection control module, and liquid level sensor connects
The input of water detection control module is connected to, the output end of water detection control module is connected to the input of heat pump controller
End, the output end of heat pump controller are connected to the compressor of source pump, first circulation pump and second circulation pump;Water detection control
Molding block is also connected to electromagnetic valve driver by heat pump controller;
First cooling-water temperature sensor, the second cooling-water temperature sensor and leaving water temperature sensors are connected to the input of water temperature detection control module
End;Water temperature detects the output end of control module, by electromagnetic valve driver, is connected to the first magnetic valve, second solenoid valve and three
The driving coil of port valve;
The liquid level of described water detection control module detection heat storage water tank, when liquid level is less than water level lower limit, controls heat pump
Unit starting, the hot water preparing since the first heat cycles loop;When liquid level reaches water level higher limit, the detection of described water
Control module control source pump is out of service, simultaneously closes off the first magnetic valve and second solenoid valve, stops water inlet;
The cold water inlet road of described water inlet pre-heater inlet is provided with water regulating valve;The waste water temperature being arranged in wastewater disposal basin
Sensor is spent, is connected to the input of flow-control module;Described control device obtains waste water by wastewater temperature sensor
Temperature, according to the wastewater temperature of wastewater disposal basin, the aperture of water regulating valve is controlled, makes the leaving water temperature and waste water temperature into water preheater
The temperature difference of degree is not more than 2 DEG C, realizes small temperature difference turbulent-flow heat-exchanging;
Described printing and dyeing heat-treating machine control device continuously produces constant-temperature hot water by circulating execution following steps:
S10:Water temperature detection control module detects the first water tank water temperature, and the gentle triplet constant temperature hot-water line of the second Water in Water Tank goes out water temperature
Degree;
S20:When the first water tank water temperature reaches set water temperature, triple valve switches to a-c mouth connected states from a-b mouth connected states
State, into the second heat cycles loop running status;Meanwhile first magnetic valve open, utilize cold water intake pressure and hot and cold water
Temperature difference gravity, the constant-temperature hot water of heating will be completed in first circulation water tank, pushed up in heat storage water tank;
S30:When the second water tank water temperature reaches set water temperature, triple valve switches to a-b mouth connected states from a-c mouth connected states
State, return to the first heat cycles loop running status;Meanwhile second solenoid valve is opened, and utilizes cold water intake pressure and hot and cold water
Temperature difference gravity, the constant-temperature hot water of heating will be completed in second circulation water tank, pushed up in heat storage water tank;
S40:When entering first circulation water tank or second circulation water tank cold water makes leaving water temperature be less than set water temperature, water temperature detection
Control module controls the first magnetic valve and second solenoid valve to close, and stops cold water water inlet.
2. printing and dyeing heat-treating machine control device according to claim 1, it is characterised in that the first described cooling-water temperature sensor
With the second cooling-water temperature sensor, the bottom of first circulation water tank and second circulation water tank is separately positioned on;Described leaving water temperature passes
Sensor is arranged on the exit passageway of triplet constant temperature hot-water line, and described liquid level sensor is arranged on the inside of heat storage water tank.
A kind of 3. control method of printing and dyeing heat-treating machine control device for described in claim 1 or 2, it is characterised in that including
Following steps:
S100:Operating parameter setting module obtains water temperature setting value, water level higher limit and water level lower limit;
S200:Water detection control module detection heat storage water tank liquid level;
S220:If heat storage water tank liquid level >=water level higher limit, first and second magnetic valve is closed, source pump is shut down, return to step
S200;Otherwise, S240 is gone to step;
S240:If heat storage water tank liquid level < water level lower limits, source pump starts, and triple valve switches to a-b mouth connected states;Turn
Step S300;
S300:Water temperature detection control module detects the first water tank water temperature, the water outlet of the gentle triplet constant temperature hot-water line of the second Water in Water Tank
Temperature;
S320:If leaving water temperature < set water temperatures, the first magnetic valve and second solenoid valve are closed, and stop cold water water inlet;
S340:If the first water tank water temperature > set water temperatures, triple valve switches to a-c mouth connected states, and the first magnetic valve is opened, and is turned
Step S200;Otherwise, S360 is gone to step;
S360:If the second water tank water temperature > set water temperatures, triple valve switches to a-b mouth connected states, and second solenoid valve is opened, and is turned
Step S200;Otherwise, S300 is gone to step.
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CN109405347B (en) * | 2018-12-05 | 2021-08-06 | 江苏天舒电器有限公司 | Control method of multi-stage heat utilization heat pump control system for bathroom |
CN115323673B (en) * | 2022-08-25 | 2023-08-15 | 嘉兴壹度智慧节能技术有限公司 | Two-stage heating energy-saving transformation method for high-temperature overflow dyeing machine |
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