CN203443130U - One-chip microcomputer constant temperature flow control device of waste heat comprehensive utilization system - Google Patents
One-chip microcomputer constant temperature flow control device of waste heat comprehensive utilization system Download PDFInfo
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- CN203443130U CN203443130U CN201320422418.2U CN201320422418U CN203443130U CN 203443130 U CN203443130 U CN 203443130U CN 201320422418 U CN201320422418 U CN 201320422418U CN 203443130 U CN203443130 U CN 203443130U
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Abstract
The utility model provides a one-chip microcomputer constant temperature flow control device of a waste heat comprehensive utilization system and relates to a control device of a fluid heater adopting a heat pump and especially relates to the one-chip microcomputer constant temperature flow control device of the waste heat comprehensive utilization system. The one-chip microcomputer constant temperature flow control device comprises a one-chip microcomputer control unit used for storing and executing a control program, a sensing element arranged in an insulation water tank, a water inlet solenoid valve connected to a cold water inlet of a water / water heat exchanger, a constant temperature control valve connected to a water inlet of a condenser. The input signal end of the one-chip microcomputer control unit is connected with the sensing element. In accordance with water level and temperature of the water tank which are detected by the sensing element, a control signal is generated and transmitted to the control input ends of the water inlet solenoid valve, the constant temperature control valve, a heat source circulation pump and a constant temperature circulation pump. In accordance with relations among water temperature of the water tank, temperature of waste heat and preset water temperature, the opening degree of the constant temperature control valve is controlled to adjust water flow in such a way that a PID algorithm is executed by the constant temperature control valve so that water temperature of the water tank is ensured to remain constant during temperature fluctuation of waste water.
Description
Technical field
The utility model relates to the control device of the fluid heater that utilizes heat pump, relates in particular to a kind of single-chip microcomputer constant temperature volume control device for used heat utilization system.
Background technology
The enterprises such as printing and dyeing, electronics, food processing, chemical industry, metallurgy all need to supply a large amount of hot water in process of production, produce again more spent hot water (30～70 ℃) simultaneously, big-and-middle-sized collective bathroom also has a large amount of bathing spent hot water (30 ℃ of left and right) to produce, the spent hot water of discharge in these modern industries productions and life, after generation, conventionally can not reuse, but be directly discharged in environment, or be discharged in environment after the purified treatment of corresponding requirements.These used heat are not only not used, and on the contrary environment are produced to thermal pollution.Chinese invention patent " a kind of energy-saving printing and dyeing water utilization method and system of used heat circulation " (Chinese invention patent ZL200610027350.2, Granted publication CN100586868C) a kind of energy-saving printing and dyeing water utilization method and system of used heat circulation are disclosed, system comprises cold refrigerator, explained hereafter equipment, waste water mixing pit, waste water source source pump, hot-tub and biochemical treatment tank, feature is: because explained hereafter equipment enters the various waste heat clean waters that produce in production process in waste water mixing pit, through waste water pump, pumping into waste water source source pump again reclaims and boiling hot cold water in waste heat tank to be heated into hot water, through hot water transfer pump, hot water is pumped into explained hereafter equipment for production again, form used heat circulating energy-efficient type printing and dyeing water utilization system, its method comprises: explained hereafter equipment is got rid of to unholiness remaining hot water and take in waste water mixing pit, use waste water source source pump to reclaim waste heat cold water, hot water is stored in hot-tub, hot water supply explained hereafter equipment in hot-tub is used.This utility model can obviously be saved energy consumption, and improves the temperature difference of cold water one steam that enters explained hereafter equipment, makes heating tube road junction not because expansion damages.Chinese invention patent " wastewater source heat pump water heater of residential buildings " (Chinese invention patent ZL201010144858.7, Granted publication CN101818938B) a kind of wastewater source heat pump water heater of residential buildings is disclosed, it comprises refrigerant circulation loop, Waste Water Centralized pipe, wastewater discharge pipe, running water pipe, heat supply water pipe, waste water heat recovering heat exchanger, hot water transition conduit and waste water transition conduit, Waste Water Centralized pipe is communicated with waste water heat recovering heat exchanger, waste water heat recovering heat exchanger is communicated with waste water transition conduit, and waste water transition conduit is communicated with wastewater heat exchange device; Running water pipe is communicated with waste water heat recovering heat exchanger, and waste water heat recovering heat exchanger is communicated with hot water transition conduit, and hot water transition conduit is communicated with hot water heat exchanger.This heat pump water-heating machine Energy Efficiency Ratio is high and can avoid compressor to damage because of overload operation.
But, because industrial trade waste water day discharge capacity is larger, the storage of impossible long period of waste water, also there is the unsettled problem of waste water water temperature simultaneously, especially at heat pump, damage or wastewater temperature changes under the influence factor such as excessive, there is the heat that is difficult to fully recycle waste water in above-mentioned existing system, system is difficult to realize long-term safety, stable, efficiently operation.
Utility model content
The purpose of this utility model is that a kind of constant temperature volume control device for used heat utilization system will be provided, solve the spent hot water of industrial enterprise day discharge capacity larger, waste water water temperature is unstable, and leaving water temperature is wayward, the technical problem that the heat of waste water can not fully be recycled.
The utility model solves the problems of the technologies described above adopted technical scheme:
A utilization system single-chip microcomputer constant temperature volume control device, for controlling the leaving water temperature of used heat utilization system, described used heat utilization system comprises Instant heating type Waste Heat Recovery heating unit, attemperater, wastewater disposal basin and air conditioning terminal; Described Instant heating type Waste Heat Recovery heating unit comprises the first compressor, the second compressor, first throttle valve, the second choke valve, evaporimeter, the first gas-liquid separator, the dual system heat pump that the second gas-liquid separator and condenser form, and for the water/water-to-water heat exchanger of elementary recuperation of heat, it is characterized in that:
Described used heat utilization system single-chip microcomputer constant temperature volume control device comprises for storing the Single-chip Controlling unit with executive control program, be arranged in attemperater, for detection of the sensing element of cistern water level and water tank temperature, be arranged on the wastewater temperature sensing element of described Instant heating type Waste Heat Recovery heating unit water intake, be connected to the entering water electromagnetic valve of the cold water inlet of water/water-to-water heat exchanger, and the thermostatic control valve that is connected to condenser water inlet; The input signal end of described Single-chip Controlling unit is connected to described sensing element, the cistern water level arriving according to sensing element senses and water tank temperature produce control signal, are sent to the control input end of entering water electromagnetic valve, thermostatic control valve, heat-source Cycles pump and Constant Temperature Circulator.
A kind of preferably technical scheme of used heat utilization system single-chip microcomputer constant temperature volume control device of the present utility model, characterized by further comprising the first triple valve that is connected to waste water circulation loop, the second triple valve and the 3rd triple valve; The control signal output of described Single-chip Controlling unit, is connected to described the first triple valve, the control input end of the second triple valve and the 3rd triple valve.
A kind of better technical scheme of used heat utilization system single-chip microcomputer constant temperature volume control device of the present utility model, is characterized in that described used heat utilization system comprises the first heat-source Cycles pump and the Secondary Heat Source circulating pump that connects and composes side by side the mutually standby structure of two-shipper; Described Single-chip Controlling unit comprises heat-source Cycles pump status signal input; The running status of described two heat-source Cycles pumps of Single-chip Controlling unit Real-Time Monitoring, if a heat-source Cycles failure of pump in the mutually standby structure of two-shipper is stopped transport, is used another heat-source Cycles pump to maintain waste water circulation function.
A kind of improved technical scheme of used heat utilization system single-chip microcomputer constant temperature volume control device of the present utility model, is characterized in that described Single-chip Controlling unit comprises compressor status signal input; The first described compressor and the second compressor form the mutually standby structure of two-shipper; The running status of described Single-chip Controlling unit Real-Time Monitoring two compressors, if the compressor in the mutually standby structure of two-shipper is stopped transport because of fault, is used another compressor maintaining heat heat pump heating water function.
The beneficial effects of the utility model are:
1, single-chip microcomputer constant temperature volume control device of the present utility model adopts the method that SCM program is controlled, according to the relation between water tank water temperature, wastewater temperature, set water temperature, by thermostatic control valve, carry out pid algorithm, control the aperture of thermostatic control valve, regulating water flow, thereby when wastewater temperature fluctuates, guarantee that water tank water temperature keeps constant, and can be at 40 ℃ of-65 ℃ of free settings.
2, the utility model is by Multi-stage heat recovery technology, realize the large temperature difference and reclaim used heat, solved the problem of larger, waste water water temperature is unstable, waste water can not the long period the storage of industrial trade day wastewater discharge, can make the heat major part of waste water be recycled, the water ejecting no longer causes environmental thermal pollution, thereby can save the construction investment of cooling tower and the operating cost in later stage.
3, the Instant heating type Waste Heat Recovery heating unit that the utility model adopts, utilize the special anticorrosion heat exchanger designing with enhanced heat exchange, realize twin-stage recuperation of heat and energy and shift comprehensive utilization, product efficiency can reach 13, and guarantee in the situation that wastewater temperature changes can be safely, stable, efficiently operation.
4, the utility model adopts two-way to go out water management and the mutually standby structure of two-shipper, assurance product also can normally be produced satisfactory hot water at single compressor and single heat-source Cycles pump state, can prevent that the compressor damage ring from affecting another compressor and normally moving, two-shipper mutually an equipment in standby structure break down when out of service, another that can guarantee source pump do not have out of order system can safety, stable, efficiently operation.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of used heat utilization system;
Fig. 2 is the structural representation of single-chip microcomputer constant temperature volume control device of the present utility model and Instant heating type Waste Heat Recovery heating unit;
Fig. 3 is the structural representation that uses the Instant heating type Waste Heat Recovery heating unit dividing with recuperation of heat gas;
Fig. 4 is used heat utilization system water outlet constant-temperature control method flow chart of the present utility model;
Fig. 5 is the structural representation with the gas-liquid separator of recuperation of heat structure.
The Instant heating type Waste Heat Recovery heating of the label of each parts in above figure: 100-unit, 111-the first compressor, 112-the second compressor, 121-first throttle valve, 122-the second choke valve, 130-evaporimeter, 141-the first gas-liquid separator, 142-the second gas-liquid separator, 150-condenser, 160-water/water-to-water heat exchanger, 200-attemperater, 210-sensing element, 211-wastewater temperature sensing element, 220-cold water booster pump, 230-Constant Temperature Circulator, 240-drain valve, 300-Single-chip Controlling unit, 310-the first triple valve, 320-the second triple valve, 330-the 3rd triple valve, 340-check valve, 350-entering water electromagnetic valve, 360-thermostatic control valve, 400-wastewater disposal basin, 411-the first heat-source Cycles pump, 412-Secondary Heat Source circulating pump, 500-air conditioning terminal, A-liquid refrigerant entrance, B-liquid refrigerant outlet, C-gaseous refrigerant entrance, the outlet of D-gaseous refrigerant, E-recuperation of heat heat exchanging chamber, F-gas-liquid separation chamber.
The specific embodiment
In order to understand better technique scheme of the present utility model, below in conjunction with drawings and Examples, describe in detail further.
Fig. 1 is an embodiment of monolithic processor controlled used heat utilization system, and described used heat utilization system comprises Instant heating type Waste Heat Recovery heating unit 100, attemperater 200, Single-chip Controlling unit 300, wastewater disposal basin 400 and air conditioning terminal 500.
Fig. 2 has shown an embodiment of the Instant heating type Waste Heat Recovery heating unit 100 of used heat utilization system of the present utility model, described Instant heating type Waste Heat Recovery heating unit 100 comprises the first compressor 111, the second compressor 112, first throttle valve 121, the second choke valve 122, evaporimeter 130, the first gas-liquid separators 141, the dual system heat pump that the second gas-liquid separator 142 and condenser 150 forms, and for the water/water-to-water heat exchanger 160 of elementary recuperation of heat; In Fig. 2, make to dot the control connection between Instant heating type Waste Heat Recovery heating unit 100 and Single-chip Controlling unit 300 and each sensing element.
From the cold water inlet road of cold water booster pump 220, by entering water electromagnetic valve 350, be connected to the cold water inlet of water/water-to-water heat exchanger 160, the delivery port of water/water-to-water heat exchanger 160, by thermostatic control valve 360, is connected to the water inlet of condenser 150; Attemperater 200 is by Constant Temperature Circulator 230, be connected to the constant temperature water inlet of Instant heating type Waste Heat Recovery heating unit 100, the hot water of attemperater 200 is transmitted back to the water inlet of condenser 150, the hot water outlet of condenser 150 is connected to described attemperater 200, form the hot water circulation loop of described used heat utilization system, referring to Fig. 1 and Fig. 2.
According to the embodiment shown in Fig. 1 and Fig. 2, wastewater disposal basin 400 is connected to the A port 31A of the first triple valve 310, the B port 31B of the first triple valve 310 is by least one heat-source Cycles pump, be connected to the water intake of Instant heating type Waste Heat Recovery heating unit 100, spent hot water is transported to the waterwater entrance of water/water-to-water heat exchanger 160, the wastewater outlet of water/water-to-water heat exchanger 160 is connected to the waterwater entrance of evaporimeter 130, the wastewater effluent mouth of evaporimeter 130 is connected to the A port 33A of the 3rd triple valve 330, C port 33C by the 3rd triple valve 330 is connected to discharge outlet again, form the Waste Heat Recovery heating circuit of described used heat utilization system,
The B port 33B of the 3rd triple valve 330, by check valve 340, be connected to air conditioning terminal 500, the low-temperature wastewater that Instant heating type Waste Heat Recovery heating unit 100 is discharged, be transported to air conditioning terminal 500 and realize air conditioner refrigerating function, the wastewater outlet of air conditioning terminal 500 is connected to the A port 32A of the second triple valve 320, C port 32C by the second triple valve 320 is connected to discharge outlet, forms the air conditioner refrigerating loop of described used heat utilization system;
The C port 31C of the first triple valve 310 is connected to air conditioning terminal 500, spent hot water is transported to air conditioning terminal 500 and realizes air-conditioning heating function, the wastewater outlet of air conditioning terminal 500 is connected to the A port 32A of the second triple valve 320, C port 32C by the second triple valve 320 is connected to discharge outlet, forms the used heat heating loop of described used heat utilization system; The B port 32B of the second triple valve 320 is connected to the entrance of described heat-source Cycles pump, and the waste water of air conditioning terminal 500 is transported to described Waste Heat Recovery heating circuit again, realizes used heat heating water heating function simultaneously;
In described attemperater 200, be provided with the sensing element 210 for detection of cistern water level and water tank temperature; The input signal end of described Single-chip Controlling unit 300 is connected to described sensing element 210, the cistern water level detecting according to sensing element 210 and water tank temperature produce control signal, are sent to the control input end of entering water electromagnetic valve 350, thermostatic control valve 360, heat-source Cycles pump and Constant Temperature Circulator 230;
The control signal output of described Single-chip Controlling unit 300, be also connected to described the first triple valve 310, the control input end of the second triple valve 320 and the 3rd triple valve 330, can, according to the operational mode of selected used heat utilization system, control the on-state of each triple valve.
According to the embodiment of the Instant heating type Waste Heat Recovery heating unit shown in Fig. 2, described evaporimeter 130 and condenser 150 include two-way coolant channel, the first described compressor 111 and the second compressor 112 pass through respectively a wherein road coolant channel, connect into independently two-way refrigerant circulation loop, form the mutually standby structure of compressor two-shipper; The running status of Single-chip Controlling unit 300 Real-Time Monitoring two compressors, if the compressor in the mutually standby structure of two-shipper is stopped transport because of fault, is used the function of another compressor maintaining heat heat pump heating water.
According to the embodiment of the used heat utilization system shown in Fig. 1, the water intake of described Instant heating type Waste Heat Recovery heating unit 100 is provided with wastewater temperature sensing element 211; Described heat-source Cycles pump comprises that the first heat- source Cycles pump 411 and 412, two heat-source Cycles pumps of Secondary Heat Source circulating pump connect and compose the mutually standby structure of two-shipper side by side; The first heat-source Cycles pump 411 and Secondary Heat Source circulating pump 412 openings can, according to wastewater temperature, be controlled respectively in described Single-chip Controlling unit 300; The running status of two heat-source Cycles pumps of Single-chip Controlling unit 300 Real-Time Monitorings, if a heat-source Cycles failure of pump in the mutually standby structure of two-shipper is stopped transport, is used another heat-source Cycles pump to maintain waste water circulation function.
According to the embodiment of the Instant heating type Waste Heat Recovery heating unit dividing with recuperation of heat gas shown in Fig. 3, the first gas-liquid separator 141 and second gas-liquid separator 142 of described Instant heating type Waste Heat Recovery heating unit 100, employing is with the gas-liquid separator (being called for short band recuperation of heat gas divides) of recuperation of heat structure, the described gas-liquid separator with recuperation of heat structure as shown in Figure 5, comprises liquid refrigerant entrance A, liquid refrigerant outlet B, gaseous refrigerant entrance C, gaseous refrigerant outlet D, recuperation of heat heat exchanging chamber E and gas-liquid separation chamber F; The two-way refrigerant circulation flow process of described Instant heating type Waste Heat Recovery heating unit 100 is as follows:
The air entry of gaseous refrigerant outlet D-first compressor 111 of gas-liquid separation chamber F-first gas-liquid separator 141 of gaseous refrigerant entrance C-first gas-liquid separator 141 of liquid refrigerant outlet B-first throttle valve 121-evaporimeter 130-first gas-liquid separator 141 of recuperation of heat heat exchanging chamber E-first gas-liquid separator 141 of liquid refrigerant entrance A-first gas-liquid separator 141 of exhaust outlet-condenser 150-first gas-liquid separator 141 of the first compressor 111;
The air entry of gaseous refrigerant outlet D-second compressor 112 of gas-liquid separation chamber F-second gas-liquid separator 142 of gaseous refrigerant entrance C-second gas-liquid separator 142 of liquid refrigerant outlet B-second choke valve 12 2-evaporimeter 130-second gas-liquid separators 142 of recuperation of heat heat exchanging chamber E-second gas-liquid separator 142 of liquid refrigerant entrance A-second gas-liquid separator 142 of exhaust outlet-condenser 150-second gas-liquid separator 142 of the second compressor 112.
Fig. 4 is the flow chart of an embodiment of used heat utilization system water outlet constant-temperature control method of the present utility model, the flow chart of the present embodiment has only comprised the basic step that realizes constant temperature flow rate adjusting method, has omitted the familiar required well-known routines steps of process such as microsystem computer software and hardware power-up initializing of those skilled in the art.
Used heat utilization system water outlet constant-temperature control method of the present utility model shown in Fig. 4 comprises the following steps:
S100: obtain set water temperature, water temperature return difference setting value and preset running mode, by changing the powering state of the first triple valve 310, the second triple valve 320 and the 3rd triple valve 330, select the operational mode of used heat utilization system;
S200: the gentle cistern water level of Water in Water Tank that detects in real time attemperater 200;
S300: when cistern water level lower than water level under in limited time, start Instant heating type Waste Heat Recovery heating unit 100, open entering water electromagnetic valve 350, start the first compressor 111, the second compressors 112 and heat-source Cycles pump; When cistern water level reaches on water level, prescribe a time limit, Instant heating type Waste Heat Recovery heating unit 100 is out of service;
S350: when cistern water level reaches the water level upper limit, after Instant heating type Waste Heat Recovery heating unit 100 is out of service, if reducing and surpass water temperature return difference, water tank temperature sets value, according to preset running mode, start Instant heating type Waste Heat Recovery heating unit 100, open constant temperature water pump 230, and close entering water electromagnetic valve 350, system enters constant temperature circulating running status; When water tank temperature reaches after set water temperature, system exits constant temperature circulating running status;
S400: first influent waste water and the cold water water inlet of Instant heating type Waste Heat Recovery heating unit 100 enter water/water-to-water heat exchanger 160, carry out elementary recuperation of heat;
S500: the waste water that water/water-to-water heat exchanger 160 flows out, then enter evaporimeter 130 and carry out secondary recuperation of heat;
S600: the cold water that 160 heat exchange heat up through water/water-to-water heat exchanger, then pass through thermostatic control valve 360, and enter condenser 150 and carry out post bake, make hot water and send into attemperater 200;
S700: according to the difference of water tank water temperature and set water temperature, Single-chip Controlling unit 300 calculates the aperture of thermostatic control valve 360, carries out pid algorithm by thermostatic control valve 360 and controls discharge, thereby guarantees that water tank water temperature reaches setting value.
In order to carry out above-mentioned used heat utilization system water outlet constant-temperature control method, control the leaving water temperature of used heat utilization system.The utility model also provides a kind of single-chip microcomputer constant temperature volume control device, an embodiment of described single-chip microcomputer constant temperature volume control device, comprise for storing the Single-chip Controlling unit 300 with executive control program, be arranged in attemperater 200, sensing element 210 for detection of cistern water level and water tank temperature, be arranged on the wastewater temperature sensing element 211 of described Instant heating type Waste Heat Recovery heating unit 100 water intakes, be connected to the entering water electromagnetic valve 350 of the cold water inlet of water/water-to-water heat exchanger 160, and the thermostatic control valve 360 that is connected to condenser 150 water inlets, referring to Fig. 2, the input signal end of described Single-chip Controlling unit 300 is connected to described sensing element 210, the cistern water level detecting according to sensing element 210 and water tank temperature produce control signal, are sent to the control input end of entering water electromagnetic valve 350, thermostatic control valve 360, heat-source Cycles pump and Constant Temperature Circulator 230.
According to a preferred embodiment of used heat utilization system water outlet constant-temperature control method of the present utility model, the first described compressor 111 and the second compressor 112 form the mutually standby structure of two-shipper; The running status of Single-chip Controlling unit 300 Real-Time Monitoring two compressors, when the compressor in the mutually standby structure of two-shipper is stopped transport because of fault, can be used another compressor maintaining heat heat pump heating water function.
According to the corresponding embodiment of single-chip microcomputer constant temperature volume control device of the present utility model, described Single-chip Controlling unit 300 comprises compressor status signal input; The first described compressor 111 and the second compressor 112 form the mutually standby structure of two-shipper; The running status of described Single-chip Controlling unit 300 Real-Time Monitoring two compressors, if the compressor in the mutually standby structure of two-shipper is stopped transport because of fault, is used another compressor maintaining heat heat pump heating water function.
According to an embodiment of used heat utilization system water outlet constant-temperature control method of the present utility model, described step S100 comprises the operational mode of the following used heat utilization system that can select:
Described step S100 comprises the operational mode of the following used heat utilization system that can select:
S120: water heating is refrigerating operaton pattern simultaneously: the first triple valve 310 be electricity condition, port 31A-31B connects, port 31A-31C closes; The second triple valve 320 is power failure state, and port 32A-32B closes, and port 32A-32C connects; The 3rd triple valve 330 be electricity condition, port 33A-33B connects, port 33A-33C closes; The waste water of wastewater disposal basin 400, via the port 31A-31B of the first triple valve 310, is transported to Instant heating type Waste Heat Recovery heating unit 100 by heat-source Cycles pump, realizes two levels of thermal and reclaims hot water preparing function; The low-temperature wastewater of Instant heating type Waste Heat Recovery heating unit 100 wastewater effluent mouths, again by the port 33A-33B of the 3rd triple valve 330, via check valve 340, flow into air-conditioning end 500 and realize refrigerating function, then the port 32A-32C by the second triple valve 320 discharges;
S140: a water heating operational mode: the first triple valve 310 be electricity condition, port 31A-31B connects, port 31A-31C closes; The 3rd triple valve 330 is power failure state, and port 33A-33B closes, and port 33A-33C connects; The waste water flowing out from the wastewater effluent mouth of Instant heating type Waste Heat Recovery heating unit 100, the port 33A-33C by the 3rd triple valve 330 directly discharges.
S160: heating is water heating mode of operation simultaneously: the first triple valve 310 is power failure state, and port 31A-31B closes, port 31A-31C connects; The second triple valve 320 be electricity condition, port 32A-32B connects, port 32A-32C closes; The 3rd triple valve 330 is power failure state, and port 33A-33B closes, and port 33A-33C connects; The waste water of wastewater disposal basin, by the port 31A-31C of the first triple valve 310, enters air-conditioning end 500 and realizes heating function; The waste water that air-conditioning end 500 flows out, via the port 32A-32B of the second triple valve 320, is transported to Instant heating type Waste Heat Recovery heating unit 100 by heat-source Cycles pump, realizes two levels of thermal and reclaims hot water preparing function; The waste water of Instant heating type Waste Heat Recovery heating unit 100 wastewater effluent mouths, the port 33A-33C by the 3rd triple valve 330 directly discharges;
S180: a heating mode of operation: the first triple valve 310 is power failure state, and port 31A-31B closes, port 31A-31C connects; The second triple valve 320 is power failure state, and port 32A-32B closes, and port 32A-32C connects; The waste water of wastewater disposal basin, by the port 31A-31C of the first triple valve 310, enters air-conditioning end 500 and realizes heating function; The waste water that air-conditioning end 500 flows out, directly discharges via the port 32A-32C of the second triple valve 320.
A corresponding embodiment of single-chip microcomputer constant temperature volume control device of the present utility model, also comprises the first triple valve 310, the second triple valves 320 and the 3rd triple valve 330 that is connected to waste water circulation loop; The control signal output of described Single-chip Controlling unit 300, be connected to described the first triple valve 310, the control input end of the second triple valve 320 and the 3rd triple valve 330, can, according to the operational mode of selected used heat utilization system, control the on-state of each triple valve.By the embodiment of this single-chip microcomputer constant temperature volume control device, can realize above-mentioned operational mode selection function.
When adopting the Instant heating type Waste Heat Recovery heating unit dividing with recuperation of heat gas shown in Fig. 3 to build used heat utilization system, described water outlet constant-temperature control method, also comprises following refrigerant circulation flow process:
S810: the high temperature and high pressure gaseous refrigerant that compressor is discharged enters condenser, and release heat is in heated cold water, and gaseous refrigerant is condensed into liquid state;
S820: be condensed into liquid cold-producing medium by liquid refrigerant entrance A, enter the recuperation of heat heat exchanging chamber E dividing with recuperation of heat gas and reclaim the heat in liquid refrigerant;
S830: the sub-cooled liquid refrigerant in recuperation of heat heat exchanging chamber E, via liquid refrigerant outlet B, flow out, after choke valve reducing pressure by regulating flow, enter in evaporimeter and absorb the heat in waste water, vaporization becomes low-pressure gaseous refrigerant;
S840: low-pressure gaseous refrigerant is by gaseous refrigerant entrance C, enter gas-liquid separation chamber F, reclaim the heat of liquid refrigerant in recuperation of heat heat exchanging chamber E, fully vaporization is by sucking compressor by gaseous refrigerant outlet D, form enclosed refrigerant circulation flow process, constantly by the transfer of heat in waste water in heated water.
According to another embodiment of used heat utilization system water outlet constant-temperature control method of the present utility model, described heat-source Cycles pump comprises the first heat-source Cycles pump 411 and Secondary Heat Source circulating pump 412; Single-chip Controlling unit 300 detects the wastewater temperature of water intake in real time; If wastewater temperature higher than 50 ℃, is opened the first heat-source Cycles pump 411 or Secondary Heat Source circulating pump 412; If wastewater temperature, lower than 50 ℃, is opened the first heat-source Cycles pump 411 and Secondary Heat Source circulating pump 412 simultaneously, thus the internal circulating load of increase waste water.
According to the improvement project of above-described embodiment of used heat utilization system water outlet constant-temperature control method of the present utility model, the first described heat-source Cycles pump 411 and Secondary Heat Source circulating pump 412 form the mutually standby structure of two-shipper; The running status of two heat-source Cycles pumps of Single-chip Controlling unit 300 Real-Time Monitorings, when a heat-source Cycles failure of pump in the mutually standby structure of two-shipper is stopped transport, can be used another heat-source Cycles pump to maintain waste water circulation function.
Corresponding to the embodiment of the used heat utilization system of above-mentioned control method, described Single-chip Controlling unit 300 comprises heat-source Cycles pump status signal input; The first described heat-source Cycles pump 411 and Secondary Heat Source circulating pump 412 connect and compose the mutually standby structure of two-shipper side by side; The running status of described two heat-source Cycles pumps of Single-chip Controlling unit 300 Real-Time Monitorings, if a heat-source Cycles failure of pump in the mutually standby structure of two-shipper is stopped transport, is used another heat-source Cycles pump to maintain waste water circulation function.
Cooling and warming water running pattern: 50 ℃-70 ℃ of influent waste waters and cold water are intake 15 ℃ and carried out after elementary recuperation of heat through water/water-to-water heat exchanger 160, between waste water Water in Water Tank temperature drop to 30 ℃-40 ℃, and cold water temperature rises to 25 ℃-30 ℃, then, waste water flows into evaporimeter 130 again and carries out secondary recuperation of heat, and the wastewater temperature of recuperation of heat is down to 12 ℃ of left and right, from evaporimeter 130 12 ℃ of waste water out, via the 3rd triple valve 330, by check valve 340, flow into air-conditioning end 500 and freeze.Be warming up to the cold water of 25 ℃-30 ℃ after thermostatic control valve 350, flow into condenser 150 and carry out post bake.Single-chip Controlling unit 300 detects hot water water temperature in real time, according to the difference of water tank water temperature and set water temperature, calculates the aperture of thermostatic control valve, carries out pid algorithm and controls discharge, thereby guarantee that water tank water temperature reaches setting value by thermostatic control valve.
Embodiment 2
Winter heating water heating mode of operation: from the wastewater disposal basin spent hot water of 50 ℃-70 ℃ out, via the first triple valve 310, enter air-conditioning end 500 and realize heating function, the waste water that air-conditioning end 500 flows out is via the second triple valve 320, by the first heat-source Cycles pump 411 and/or Secondary Heat Source circulating pump 412, realize two levels of thermal and reclaim hot water preparing function; The water tank water temperature of air-conditioning end is between 35 ℃-40 ℃, enters water/water-to-water heat exchanger 160, carries out primary heat exchange with 5 ℃ of-10 ℃ of cold water from entering water electromagnetic valve 350, and between waste water Water in Water Tank temperature drop to 20 ℃-30 ℃, and cold water temperature rises to 15 ℃-25 ℃.The waste water that water/water-to-water heat exchanger 160 flows out flows into evaporimeter 130 again and carries out secondary recuperation of heat, wastewater temperature after secondary recuperation of heat is down to 8 ℃ of left and right, be warming up to the cold water of 15 ℃-25 ℃ after thermostatic control valve 360, flow into condenser 150 and carry out post bake, Single-chip Controlling unit 300 detects hot water water temperature, according to the difference of water tank water temperature and set water temperature, calculate the aperture of thermostatic control valve, by thermostatic control valve, carry out pid algorithm and control discharge, thereby guarantee that water tank water temperature reaches setting value.From the waste water of evaporimeter 8 ℃ of left and right out, the port 33A-33C by the 3rd triple valve 330 directly discharges.If while not needing water heating, the second triple valve 320 dead electricity, the waste water that air-conditioning end 500 flows out, directly discharges via the port 32A-32C of the second triple valve 320.
Those of ordinary skill in the art will be appreciated that; above embodiment is only for the technical solution of the utility model is described; and be not used as restriction of the present utility model; any variation of the above embodiment being done based on connotation of the present utility model, modification, all will drop in the protection domain of claim of the present utility model.
Claims (4)
1. a used heat utilization system single-chip microcomputer constant temperature volume control device, for controlling the leaving water temperature of used heat utilization system, described used heat utilization system comprises Instant heating type Waste Heat Recovery heating unit, attemperater, wastewater disposal basin and air conditioning terminal; Described Instant heating type Waste Heat Recovery heating unit comprises the first compressor, the second compressor, first throttle valve, the second choke valve, evaporimeter, the first gas-liquid separator, the dual system heat pump that the second gas-liquid separator and condenser form, and for the water/water-to-water heat exchanger of elementary recuperation of heat, it is characterized in that:
Described used heat utilization system single-chip microcomputer constant temperature volume control device comprises for storing the Single-chip Controlling unit with executive control program, be arranged in attemperater, for detection of the sensing element of cistern water level and water tank temperature, be arranged on the wastewater temperature sensing element of described Instant heating type Waste Heat Recovery heating unit water intake, be connected to the entering water electromagnetic valve of the cold water inlet of water/water-to-water heat exchanger, and the thermostatic control valve that is connected to condenser water inlet; The input signal end of described Single-chip Controlling unit is connected to described sensing element, the cistern water level arriving according to sensing element senses and water tank temperature produce control signal, are sent to the control input end of entering water electromagnetic valve, thermostatic control valve, heat-source Cycles pump and Constant Temperature Circulator.
2. used heat utilization system single-chip microcomputer constant temperature volume control device according to claim 1, characterized by further comprising the first triple valve that is connected to waste water circulation loop, the second triple valve and the 3rd triple valve; The control signal output of described Single-chip Controlling unit, is connected to described the first triple valve, the control input end of the second triple valve and the 3rd triple valve.
3. used heat utilization system single-chip microcomputer constant temperature volume control device according to claim 1, is characterized in that described used heat utilization system comprises the first heat-source Cycles pump and the Secondary Heat Source circulating pump that connects and composes side by side the mutually standby structure of two-shipper; Described Single-chip Controlling unit comprises heat-source Cycles pump status signal input; The running status of described two heat-source Cycles pumps of Single-chip Controlling unit Real-Time Monitoring, if a heat-source Cycles failure of pump in the mutually standby structure of two-shipper is stopped transport, is used another heat-source Cycles pump to maintain waste water circulation function.
4. according to the used heat utilization system single-chip microcomputer constant temperature volume control device described in claim 1,2 or 3, it is characterized in that described Single-chip Controlling unit comprises compressor status signal input; The first described compressor and the second compressor form the mutually standby structure of two-shipper; The running status of described Single-chip Controlling unit Real-Time Monitoring two compressors, if the compressor in the mutually standby structure of two-shipper is stopped transport because of fault, is used another compressor maintaining heat heat pump heating water function.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422418.2U CN203443130U (en) | 2013-07-16 | 2013-07-16 | One-chip microcomputer constant temperature flow control device of waste heat comprehensive utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422418.2U CN203443130U (en) | 2013-07-16 | 2013-07-16 | One-chip microcomputer constant temperature flow control device of waste heat comprehensive utilization system |
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| Publication Number | Publication Date |
|---|---|
| CN203443130U true CN203443130U (en) | 2014-02-19 |
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|---|---|---|---|
| CN201320422418.2U Expired - Lifetime CN203443130U (en) | 2013-07-16 | 2013-07-16 | One-chip microcomputer constant temperature flow control device of waste heat comprehensive utilization system |
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| Country | Link |
|---|---|
| CN (1) | CN203443130U (en) |
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2013
- 2013-07-16 CN CN201320422418.2U patent/CN203443130U/en not_active Expired - Lifetime
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