CN104132491A

CN104132491A - Industrial cold and hot balance unit system and control method thereof

Info

Publication number: CN104132491A
Application number: CN201410366478.6A
Authority: CN
Inventors: 王玉军; 王颖; 许春林; 刘军; 杨奕; 王天舒
Original assignee: Jiangsu Tianshu Electric Appliance Co Ltd
Current assignee: Jiangsu Tianshu Electric Appliance Co Ltd
Priority date: 2014-07-29
Filing date: 2014-07-29
Publication date: 2014-11-05
Anticipated expiration: 2034-07-29
Also published as: CN104132491B

Abstract

The invention relates to an industrial cold and hot balance unit system and a control method of the industrial cold and hot balance unit system, and relates to an energy recycling system for a combined heating and refrigeration system and a control method of the energy recycling system. The industrial cold and hot balance unit system comprises a cold and hot balance unit, a cold air subsystem, a hot air subsystem, a hot water subsystem and a control device, wherein the cold and hot balance unit comprises a refrigerant circulation loop with the cold and hot balance configuration and a refrigerant circulation loop with the heat pump configuration, a control device has control over configuration switching of the refrigerant circulation loops through an electric three-way valve, a hot water condenser and a heating medium water pump form a heating medium water circulation loop sequentially through a heat storage water tank and a combined air cabinet hot water coil pipe, and a cold water evaporator and a refrigerant water pump form a refrigerant water circulation loop through a combined air cabinet cold water coil pipe. The cold and hot balance unit is controlled through the control device, balance transfer of cooling and heating loads is achieved, the cooling and heating load requirement and the temperature and humidity requirement of workshops are met, effective balance of the cooling and heating loads is ensured, the equipment utilization rate is high, the cost is low, energy is effectively utilized, and energy is sufficiently saved.

Description

A kind of industrial cold and hot balancing machine group system and control method thereof

Technical field

The present invention relates to a kind ofly for heating energy recovery utilizing system and the control method thereof with refrigeration train assembly system, relate in particular to a kind of industrial cold and hot balancing machine group system and for the control method of this system.

Background technology

China's industrial circle energy-output ratio accounts for 70% of national energy resource consumption total amount, and major industrial product specific energy consumption average specific international most advanced level exceeds 30% left and right.Except production technology falls behind relatively, the irrational factor of the industrial structure, industrial exhaust heat utilization rate is low is the major reason that causes energy consumption high, China's energy utilization rate is only 33% left and right, and lower by approximately 10% than developed country, at least 50% industrial consumption energy is directly discarded with various forms of waste heats.Therefore from another viewpoint, China's industrial waste heat resource is abundant, is extensively present in industrial every profession and trade production process, residual heat resources account for 17～67% of its fuel consumption total amount, wherein recovery rate reaches 60%, and utilization rate of waste heat room for promotion is large, and energy-saving potential is huge.Industrial afterheat recovery utilization is considered to a kind of " new forms of energy ", becomes in recent years the important content that advances China's energy-saving and emission-reduction work.For example, Chinese invention patent " all-in-one machine integrated with heat and cold sources group " (Chinese invention patent number: ZL200910047034.5, Granted publication number: CN101498499B) disclose a kind of all-in-one machine integrated with heat and cold sources group, the outlet of compressor is connected with air-cooled condenser, water-cooled condenser respectively, air-cooled condenser and water-cooled condenser converge rear connection throttling arrangement, throttling arrangement is connected with water-cooled evaporimeter, wind-cooled evaporator respectively again, is connected to the import of compressor after water-cooled evaporimeter and wind-cooled evaporator converge; The outlet of water-cooled evaporimeter is connected with the import of chilled water user side, and the outlet of chilled water user side is connected with the circulation of water-cooled evaporimeter; The outlet of water-cooled condenser is connected with the import of hot water user side, and the outlet of hot water user side is connected with water-cooled condenser circulation.The change of this invention in traditional will building certain particular space for controlling target, be transformed into Zheng Zhuan building for controlling target, the low-temperature receiver in unified plan Zheng Zhuan building, thermal source are supplied with, make it cold heat balance, reducing used heat or useless cold type puts, thereby non-renewable energy resources consumption is reduced to minimum, forms synthesis energy saving system.Chinese invention patent application " a kind of cold and hot inner equilibrium unit " (application for a patent for invention number: 201310025625.9, publication number: CN103075842A) disclose a kind of cold and hot inner equilibrium unit, comprised with compressor, heat source side heat exchanger, heat source side heat compensator, heating power expansion valve, low-temperature receiver side heat exchanger, low-temperature receiver side cold-smoothing weighing apparatus, vapour liquid separator and being connected in series with pipeline.When heating, the cold of low-temperature receiver side may be delivered in air or water or in refrigerant and be utilized effectively by cold terminal by heat-exchanger rigs such as fin radiator, waterway circulating heat radiation or the heat radiations of interior cold-smoothing weighing apparatus; When refrigeration, the heat of heat source side may be delivered to by hot terminal and be utilized effectively by heat-exchanger rigs such as fin radiator, waterway circulating heat radiation or interior heat compensator heat radiations in air or water or in refrigerant.

Although foregoing invention can improve the cold and hot amount service efficiency of unit by thermal energy balance utilization, realizes zero-emission and heat recovery.But, because each industrial enterprise is not quite similar to the situation of energy resource consumption, the actual demand of enterprise is not carried out to Study on thinning, adopt above-mentioned universal cold and hot balance unit equipment hot and cold load rationally can not be utilized, the cost of can not effectively reducing investment outlay, even may cause the utilization rate of equipment to decline, system is also difficult to effectively control and realizes long-term safety, stable, efficiently operation.

Summary of the invention

The object of the invention is to provide a kind of industrial cold and hot balancing machine group system, for solving the technical problem of industrial enterprise's heat integration.

The present invention solves the problems of the technologies described above adopted technical scheme:

An industrial cold and hot balancing machine group system, comprises cold and hot balance unit, is the cold wind subsystem of cool-down dehumidification workshop supply cold wind, for the hot blast subsystem of intensification workshop supply hot blast, is the hot water subsystem of hot-water supply between cleaning Vehicle, and control device; It is characterized in that:

Described cold and hot balance unit comprises the refrigerant circulation loop of the cold and hot configuration of equilibrium and the refrigerant circulation loop of heat pump configuration; The configuration that described control device is controlled refrigerant circulation loop by electric T-shaped valve is switched;

The refrigerant circulation loop of the described cold and hot configuration of equilibrium is from the exhaust outlet of compressor, by the cross valve connecting successively, hot water condenser and heating power expansion valve, be connected to the port A of electric T-shaped valve, via the cold water evaporimeter and the check valve that are connected to electric T-shaped valve port C, by cross valve and gas-liquid separator, be connected to the air entry of compressor again;

The refrigerant circulation loop of described heat pump configuration is from the exhaust outlet of compressor, by the cross valve connecting successively, hot water condenser and heating power expansion valve, be connected to the port A of electric T-shaped valve, via the evaporator fin that is connected to electric T-shaped valve port B, by cross valve and gas-liquid separator, be connected to the air entry of compressor again;

The delivery port of described hot water condenser, successively by the hot water storage tank of hot water subsystem and the combined type wind cabinet hot-water coil pipe of hot blast subsystem, through heating agent water pump, be connected to the water inlet of hot water condenser, form the heat medium water closed circuit of industrial cold and hot balancing machine group system; Described cold and hot balance unit by heat transmission and be stored in hot water storage tank, and provides heat by heat medium water for hot blast subsystem and hot water subsystem by heat medium water;

The delivery port of described cold water evaporimeter, by the combined type wind cabinet chilled water coil of cold wind subsystem, is connected to the water inlet of cold water evaporimeter through refrigerant water pump, form the chilled water closed circuit of industrial cold and hot balancing machine group system; Described cold and hot balance unit provides cold by chilled water for cold wind subsystem;

Described industrial cold and hot balancing machine group system is controlled cold and hot balance unit by control device, and the balance that realizes the cooling and heating load between intensification workshop, cool-down dehumidification workshop and cleaning Vehicle shifts, and meets cooling and heating load and the humiture requirement in each workshop.

A kind of preferably technical scheme of industrial cold and hot balancing machine group system of the present invention, it is characterized in that described electric T-shaped valve is three-way electric regulating valve, described control device can be according to the variation of cooling and heating load, by changing the assignment of traffic of electric T-shaped valve port B and port C, dynamic adjustments flows through the refrigerant flow of cold water evaporimeter and evaporator fin.

A kind of better technical scheme of industrial cold and hot balancing machine group system of the present invention, it is characterized in that on described chilled water closed circuit and heat medium water closed circuit, be respectively equipped with chilled water expansion tank and heat medium water expansion tank, can autobalance chilled water and the water yield and the pressure of heat medium water.

A kind of improved technical scheme of industrial cold and hot balancing machine group system of the present invention, it is characterized in that described industrial cold and hot balancing machine group system is also provided with auxiliary heat engine group, described auxiliary heat engine group is by auxiliary heat-exchanger pump, be connected in parallel in the water outlet and water return pipeline of heat medium water, when cold and hot balance unit heating capacity is not enough, described auxiliary heat engine group provides additional heat by heat medium water for hot blast subsystem and hot water subsystem.

Another object of the present invention is to provide a kind of for above-mentioned industrial cold and hot balancing machine group system control method.The present invention solves the problems of the technologies described above adopted technical scheme:

An industrial cold and hot balancing machine group system control method for above-mentioned industrial cold and hot balancing machine group system, is characterized in that comprising the following steps:

S100: operational mode parameter setting module obtains heat accumulating water temperature upper limit set value Txs, water outlet temperature setting value Tcs, intensification workshop desired temperature Tss, cool-down dehumidification workshop desired temperature Tjs and humidity set point Tsd;

S200: according between intensification workshop, hot water cleaning Vehicle and the cooling and heating load state in cool-down dehumidification workshop, by operational mode parameter setting module, determine the operational mode of cold and hot balance unit, and corresponding intensification hot water priority status and/or cool-down dehumidification priority status are set, control cold and hot balance unit and enter the cold and hot configuration of equilibrium or heat pump configuration;

S300: the cold and hot configuration of equilibrium: the port A that cold and hot balance unit control module is controlled electric T-shaped valve is switched to port C, sets up the refrigerant circulation loop of the cold and hot configuration of equilibrium; Heat medium water pump startup, sets up the heat medium water circulation between hot water condenser, hot water storage tank and combined type wind cabinet hot-water coil pipe; Chilled water pump startup, sets up the chilled water circulation between combined type wind cabinet chilled water coil and cold water evaporimeter; The described cold and hot configuration of equilibrium comprises following 4 kinds of patterns:

Pattern 1: heat up in intensification workshop, cool-down dehumidification workshop needs to need hot water between cool-down dehumidification, cleaning Vehicle;

Pattern 2: heat up in intensification workshop, cool-down dehumidification workshop needs or not between cool-down dehumidification, cleaning Vehicle hot water;

Mode 3: intensification workshop does not need to heat up, cool-down dehumidification workshop needs to need hot water between cool-down dehumidification, cleaning Vehicle;

Pattern 4: intensification workshop does not need to heat up, cool-down dehumidification workshop needs or not between cool-down dehumidification, cleaning Vehicle hot water;

S320: if operational mode is pattern 1: intensification hot water detects control module judgement intensification hot water priority status, according to the temperature deviation in heat accumulating water temperature and intensification workshop, regulates hot-water coil pipe rotation speed of fan, controls and cleans hot water supply; Humidity detects control module judgement cool-down dehumidification priority status, according to humiture deviation, regulates the rotation speed of fan of chilled water coil;

S340: if operational mode is pattern 2: intensification hot water detects control module according to intensification workshop temperature deviation, regulates the rotation speed of fan of hot-water coil pipe; Humidity detects control module judgement cool-down dehumidification priority status, according to humiture deviation, regulates the rotation speed of fan of chilled water coil;

S360: if operational mode is mode 3: intensification hot water detects control module relatively heat accumulating water temperature and water outlet temperature setting value, controls and cleans hot water supply; Humidity detects control module judgement cool-down dehumidification priority status, according to humiture deviation, regulates the rotation speed of fan of chilled water coil;

S380: if operational mode is pattern 4: humidity detects control module judgement cool-down dehumidification priority status, according to humiture deviation, regulates the rotation speed of fan of chilled water coil;

S400: heat pump configuration: the port A that cold and hot balance unit control module is controlled electric T-shaped valve is switched to port B, sets up the refrigerant circulation loop of heat pump configuration; Heat medium water pump startup, sets up the heat medium water circulation between hot water condenser, hot water storage tank and combined type wind cabinet hot-water coil pipe; The described cold and hot configuration of equilibrium comprises following 3 kinds of patterns:

Pattern 5: heating up in intensification workshop, does not work and maintain the original state in cool-down dehumidification workshop, need hot water between cleaning Vehicle;

Pattern 6: intensification workshop does not need to heat up, do not work and maintain the original state in cool-down dehumidification workshop, need hot water between cleaning Vehicle;

Mode 7: heating up in intensification workshop, does not work and maintain the original state in cool-down dehumidification workshop, do not need hot water between cleaning Vehicle;

S420: if operational mode is pattern 5: intensification hot water detects control module judgement intensification hot water priority status, according to the temperature deviation in heat accumulating water temperature and intensification workshop, regulates the rotation speed of fan of hot-water coil pipe and controls the supply of cleaning hot water;

S440: if operational mode is pattern 6: intensification hot water detects control module relatively heat accumulating water temperature and water outlet temperature setting value, controls to hot-water supply between cleaning Vehicle by entering water electromagnetic valve;

S460: if operational mode is mode 7: intensification hot water detects control module according to intensification workshop temperature deviation, regulates the rotation speed of fan of hot-water coil pipe;

S500: intensification hot water detects control module relatively heat accumulating water temperature Txc and water tank water temperature higher limit Txs, if Txc > is Txs, to cold and hot balance unit control module, send hot water storage tank overtemperature signal, control compressor shuts down, and cold and hot balance unit utilizes the heat of hot water storage tank savings to continue to carry out intensification workshop and heats up and produce the hot water process of cleaning; Until heat accumulating water temperature Txc≤water outlet temperature setting value Tcs restarts compressor.

A kind of preferably technical scheme of industrial cold and hot balancing machine group system control method of the present invention, is characterized in that described step S320 comprises following action:

S321: humidity detects control module 530 and detects in real time dry-bulb temperature Tgq and the wet-bulb temperature Tsq in cool-down dehumidification workshop, poor by according to dry-bulb temperature Tgq and wet-bulb temperature Tsq, calculate or table look-up and obtain the relative humidity RH in cool-down dehumidification workshop, according to cool-down dehumidification priority status, control dehumidifying and cooling process:

S322: if cool-down dehumidification priority status is chosen as cooling priority status, cold wind fan frequency conversion controller output high-frequency current, drive combined type wind cabinet chilled water coil blower fan high-speed cruising, strengthen the refrigeration of unit, cool-down dehumidification workshop is lowered the temperature, until Tgq≤Tjs turns automatic cool-down dehumidification state and continues operation;

S323: if cool-down dehumidification priority status is chosen as dehumidifying priority status, cold wind fan frequency conversion controller 533 output low frequency rate electric currents, drive combined type wind cabinet chilled water coil blower fan low cruise, strengthen the effect on moisture extraction of unit, dehumidified in cool-down dehumidification workshop, until RH≤RHs turns automatic cool-down dehumidification state and continues operation;

S324: otherwise, humidity detects control module and carries out automatic cool-down dehumidification control procedure: dry-bulb temperature Tgq and relative humidity RH are compared with cooling desired temperature Tjs and humidity set point RHs respectively, according to the output frequency of humiture deviation dynamic adjustments cold wind fan frequency conversion controller, the rotating speed of inorganic adjusting combined type wind cabinet chilled water coil blower fan, reach the dynamic equilibrium of dehumidifying and cooling: if 3 ℃ of Tgq-Tjs <, and during RH-RHs > 10%, combined type wind cabinet chilled water coil 220 blower fans reduce the speed of service, strengthen the moisture removal of unit, if 5 ℃ of Tgq-Tjs >, and during humidity RH-RHs < 5%, combined type wind cabinet chilled water coil blower fan improves the speed of service, strengthens the refrigeration of unit, reduces the moisture removal of unit, otherwise combined type wind cabinet chilled water coil blower fan maintains the current speed of service, the balanced cool-down dehumidification of unit, until the humiture in cool-down dehumidification workshop reaches the scope of setting,

S330: intensification hot water detection control module detects heat accumulating water temperature Txc and the intensification workshop temperature T sw of hot water storage tank in real time, controls the process of workshop intensification and hot water preparing according to intensification hot water priority status:

S331: heat up preferential if intensification hot water priority status is chosen as workshop, when Tsw < Tss-3, by entering water electromagnetic valve driver control, close entering water electromagnetic valve, stop to moisturizing in hot-tub, heat supplement in hot water storage tank, to combined type wind cabinet hot-water coil pipe, improves heating effect and firing rate; When Tsw >=Tss-1, by entering water electromagnetic valve driver control, open entering water electromagnetic valve, to moisturizing in hot-tub;

S332: hot water is preferential if intensification hot water priority status is chosen as cleaning, close the blower fan of combined type wind cabinet hot-water coil pipe, by entering water electromagnetic valve driver control, open entering water electromagnetic valve, in hot-tub, supply water, until after the water in hot-tub reaches demand, then the blower fan of opening combined type wind cabinet hot-water coil pipe carries out workshop intensification;

S333: otherwise, intensification hot water detects control module and carries out automatic heating hot water control procedure, heat up and produce to clean and carry out with hot water simultaneously in intensification workshop: intensification hot water detects control module relatively heat up workshop temperature T sw and intensification workshop desired temperature Tss, according to temperature deviation, regulate the output frequency of air-heater frequency-variable controller, the rotation speed of fan of dynamic adjustments combined type wind cabinet hot-water coil pipe: if Tsw < is Tss-3, the blower fan high-speed cruising of combined type wind cabinet hot-water coil pipe; If Tss-1 > is Tsw >=Tss-3, the operation of the blower fan middling speed of combined type wind cabinet hot-water coil pipe; If Tss+1 > is Tsw >=Tss-1, the blower fan low cruise of combined type wind cabinet hot-water coil pipe; If Tsw >=Tss+1, the blower fan of combined type wind cabinet hot-water coil pipe is out of service;

S334: intensification hot water detects control module heat accumulating water temperature Txc and water outlet temperature setting value Tcs are compared, by entering water electromagnetic valve driver control entering water electromagnetic valve: if Txc < is Tcs, close entering water electromagnetic valve, hot water storage tank enters accumulation of heat soaking condition; If Txc >=Tcs, opens entering water electromagnetic valve, to hot-water supply between cleaning Vehicle.

A kind of better technical scheme of industrial cold and hot balancing machine group system control method of the present invention, is characterized in that described step S340 comprises following action:

S341: humidity detects dry-bulb temperature Tgq and the wet-bulb temperature Tsq that control module detects cool-down dehumidification workshop in real time, poor by according to dry-bulb temperature Tgq and wet-bulb temperature Tsq, calculate or table look-up and obtain the relative humidity RH in cool-down dehumidification workshop, according to cool-down dehumidification priority status, control dehumidifying and cooling process:

S342: if cool-down dehumidification priority status is chosen as cooling priority status, cold wind fan frequency conversion controller 533 output high-frequency current, drive combined type wind cabinet chilled water coil blower fan high-speed cruising, strengthen the refrigeration of unit, cool-down dehumidification workshop is lowered the temperature, until Tgq≤Tjs turns automatic cool-down dehumidification state and continues operation;

S343: if cool-down dehumidification priority status is chosen as dehumidifying priority status, cold wind fan frequency conversion controller output low frequency rate electric current, drive combined type wind cabinet chilled water coil blower fan low cruise, strengthen the effect on moisture extraction of unit, dehumidified in cool-down dehumidification workshop, until RH≤RHs turns automatic cool-down dehumidification state and continues operation;

S344: otherwise, humidity detects control module and carries out automatic cool-down dehumidification control procedure: dry-bulb temperature Tgq and relative humidity RH are compared with cooling desired temperature Tjs and humidity set point RHs respectively, according to the output frequency of humiture deviation dynamic adjustments cold wind fan frequency conversion controller, the rotating speed of inorganic adjusting combined type wind cabinet chilled water coil blower fan, reach the dynamic equilibrium of dehumidifying and cooling: if 3 ℃ of Tgq-Tjs <, and during RH-RHs > 10%, combined type wind cabinet chilled water coil 220 blower fans reduce the speed of service, strengthen the moisture removal of unit, if 5 ℃ of Tgq-Tjs >, and during humidity RH-RHs < 5%, combined type wind cabinet chilled water coil blower fan improves the speed of service, strengthens the refrigeration of unit, reduces the moisture removal of unit, otherwise combined type wind cabinet chilled water coil blower fan maintains the current speed of service, the balanced cool-down dehumidification of unit, until the humiture in cool-down dehumidification workshop reaches the scope of setting,

S345: intensification hot water detects heat accumulating water temperature Txc and the intensification workshop temperature T sw that control module detects hot water storage tank in real time, workshop temperature T sw and intensification workshop desired temperature Tss relatively heat up, according to temperature deviation, regulate the output frequency of air-heater frequency-variable controller, the rotation speed of fan of dynamic adjustments combined type wind cabinet hot-water coil pipe:

S346: if Tsw < is Tss-3, the blower fan high-speed cruising of combined type wind cabinet hot-water coil pipe; If Tss-1 > is Tsw >=Tss-3, the operation of the blower fan middling speed of combined type wind cabinet hot-water coil pipe; If Tss+1 > is Tsw >=Tss-1, the blower fan low cruise of combined type wind cabinet hot-water coil pipe; If Tsw >=Tss+1, the blower fan of combined type wind cabinet hot-water coil pipe is out of service.

A kind of preferred technical scheme of industrial cold and hot balancing machine group system control method of the present invention, is characterized in that described step S360 comprises following action:

S361: humidity detects dry-bulb temperature Tgq and the wet-bulb temperature Tsq that control module detects cool-down dehumidification workshop in real time, poor by according to dry-bulb temperature Tgq and wet-bulb temperature Tsq, calculate or table look-up and obtain the relative humidity RH in cool-down dehumidification workshop, according to cool-down dehumidification priority status, control dehumidifying and cooling process:

S362: if cool-down dehumidification priority status is chosen as cooling priority status, cold wind fan frequency conversion controller output high-frequency current, drive combined type wind cabinet chilled water coil blower fan high-speed cruising, strengthen the refrigeration of unit, cool-down dehumidification workshop is lowered the temperature, until Tgq≤Tjs turns automatic cool-down dehumidification state and continues operation;

S363: if cool-down dehumidification priority status is chosen as dehumidifying priority status, cold wind fan frequency conversion controller output low frequency rate electric current, drive combined type wind cabinet chilled water coil blower fan low cruise, strengthen the effect on moisture extraction of unit, dehumidified in cool-down dehumidification workshop, until RH≤RHs turns automatic cool-down dehumidification state and continues operation;

S364: otherwise, humidity detects control module and carries out automatic cool-down dehumidification control procedure: dry-bulb temperature Tgq and relative humidity RH are compared with cooling desired temperature Tjs and humidity set point RHs respectively, according to the output frequency of humiture deviation dynamic adjustments cold wind fan frequency conversion controller, the rotating speed of inorganic adjusting combined type wind cabinet chilled water coil blower fan, reach the dynamic equilibrium of dehumidifying and cooling: if 3 ℃ of Tgq-Tjs <, and during RH-RHs > 10%, combined type wind cabinet chilled water coil 220 blower fans reduce the speed of service, strengthen the moisture removal of unit, if 5 ℃ of Tgq-Tjs >, and during humidity RH-RHs < 5%, combined type wind cabinet chilled water coil blower fan improves the speed of service, strengthens the refrigeration of unit, reduces the moisture removal of unit, otherwise combined type wind cabinet chilled water coil blower fan maintains the current speed of service, the balanced cool-down dehumidification of unit, until the humiture in cool-down dehumidification workshop reaches the scope of setting,

S365: intensification hot water detects the heat accumulating water temperature Txc that control module detects hot water storage tank in real time, heat accumulating water temperature Txc and water outlet temperature setting value Tcs are compared, by entering water electromagnetic valve driver control entering water electromagnetic valve: if Txc < is Tcs, close entering water electromagnetic valve, hot water storage tank enters accumulation of heat soaking condition; If Txc >=Tcs, opens entering water electromagnetic valve, to hot-water supply between cleaning Vehicle.

A kind of improved technical scheme of industrial cold and hot balancing machine group system control method of the present invention, is characterized in that described step S380 comprises following action:

S381: humidity detects dry-bulb temperature Tgq and the wet-bulb temperature Tsq that control module detects cool-down dehumidification workshop in real time, poor by according to dry-bulb temperature Tgq and wet-bulb temperature Tsq, calculate or table look-up and obtain the relative humidity RH in cool-down dehumidification workshop, according to cool-down dehumidification priority status, control dehumidifying and cooling process:

S382: if cool-down dehumidification priority status is chosen as cooling priority status, cold wind fan frequency conversion controller output high-frequency current, drive combined type wind cabinet chilled water coil blower fan high-speed cruising, strengthen the refrigeration of unit, cool-down dehumidification workshop is lowered the temperature, until Tgq≤Tjs turns automatic cool-down dehumidification state and continues operation;

S383: if cool-down dehumidification priority status is chosen as dehumidifying priority status, cold wind fan frequency conversion controller output low frequency rate electric current, drive combined type wind cabinet chilled water coil blower fan low cruise, strengthen the effect on moisture extraction of unit, dehumidified in cool-down dehumidification workshop, until RH≤RHs turns automatic cool-down dehumidification state and continues operation;

S384: otherwise, humidity detects control module and carries out automatic cool-down dehumidification control procedure: dry-bulb temperature Tgq and relative humidity RH are compared with cooling desired temperature Tjs and humidity set point RHs respectively, according to the output frequency of humiture deviation dynamic adjustments cold wind fan frequency conversion controller, the rotating speed of inorganic adjusting combined type wind cabinet chilled water coil blower fan, reach the dynamic equilibrium of dehumidifying and cooling: if 3 ℃ of Tgq-Tjs <, and during RH-RHs > 10%, combined type wind cabinet chilled water coil blower fan reduces the speed of service, strengthen the moisture removal of unit, if 5 ℃ of Tgq-Tjs >, and during humidity RH-RHs < 5%, combined type wind cabinet chilled water coil blower fan improves the speed of service, strengthens the refrigeration of unit, reduces the moisture removal of unit, otherwise combined type wind cabinet chilled water coil blower fan maintains the current speed of service, the balanced cool-down dehumidification of unit, until the humiture in cool-down dehumidification workshop reaches the scope of setting.

A kind of further improved technical scheme of industrial cold and hot balancing machine group system control method of the present invention, is characterized in that described step S420 comprises following action:

S421: intensification hot water detection control module detects heat accumulating water temperature Txc and the intensification workshop temperature T sw of hot water storage tank in real time, controls the process of workshop intensification and hot water preparing according to intensification hot water priority status:

S422: heat up preferential if intensification hot water priority status is chosen as workshop, when Tsw < Tss-3, by entering water electromagnetic valve driver control, close entering water electromagnetic valve, stop to moisturizing in hot-tub, heat supplement in hot water storage tank, to combined type wind cabinet hot-water coil pipe, improves heating effect and firing rate; When Tsw >=Tss-1, by entering water electromagnetic valve driver control, open entering water electromagnetic valve, to moisturizing in hot-tub;

S423: hot water is preferential if intensification hot water priority status is chosen as cleaning, close the blower fan of combined type wind cabinet hot-water coil pipe, by entering water electromagnetic valve driver control, open entering water electromagnetic valve, in hot-tub, supply water, until after the water in hot-tub reaches demand, then the blower fan of opening combined type wind cabinet hot-water coil pipe carries out workshop intensification;

S424: otherwise, intensification hot water detects control module and carries out automatic heating hot water control procedure, heat up and produce to clean and carry out with hot water simultaneously in intensification workshop: intensification hot water detects control module relatively heat up workshop temperature T sw and intensification workshop desired temperature Tss, according to temperature deviation, regulate the output frequency of air-heater frequency-variable controller, the rotation speed of fan of dynamic adjustments combined type wind cabinet hot-water coil pipe: if Tsw < is Tss-3, the blower fan high-speed cruising of combined type wind cabinet hot-water coil pipe; If Tss-1 > is Tsw >=Tss-3, the operation of the blower fan middling speed of combined type wind cabinet hot-water coil pipe; If Tss+1 > is Tsw >=Tss-1, the blower fan low cruise of combined type wind cabinet hot-water coil pipe; If Tsw >=Tss+1, the blower fan of combined type wind cabinet hot-water coil pipe is out of service;

S425: intensification hot water detects control module heat accumulating water temperature Txc and water outlet temperature setting value Tcs are compared, by entering water electromagnetic valve driver control entering water electromagnetic valve: if Txc < is Tcs, close entering water electromagnetic valve, hot water storage tank enters accumulation of heat soaking condition; If Txc >=Tcs, opens entering water electromagnetic valve, to hot-water supply between cleaning Vehicle.

The invention has the beneficial effects as follows:

1, industrial cold and hot balancing machine group system of the present invention and control method thereof, by outdoor evaporator fin is set, too much refrigeration duty is transferred to outdoor, too much thermic load is transferred to hot water storage tank, can guarantee at the change of season that the cooling and heating load in three places realizes active balance.

2, industrial cold and hot balancing machine group system of the present invention and control method thereof in the time of can needing a large amount of thermic loads in intensification workshop, provide heat by unit and hot water storage tank simultaneously, meet the object that is rapidly heated; Meanwhile, the heat that utilizes hot water storage tank to hold to get, can meet the requirement of a large amount of hot water of intermittent needs between cleaning Vehicle.

3, industrial cold and hot balancing machine group system of the present invention and control method thereof, the rotating speed VFC to combined type wind cabinet chilled water coil blower fan and hot-water coil pipe blower fan according to the workshop temperature difference and humiture deviation, can realize the dynamic control of cooling and dehumidifying, guarantee the stable of intensification workshop temperature.

4, industrial cold and hot balancing machine group system of the present invention and control method thereof, by the refrigeration duty of factory floor, thermic load, hot water load are shifted as required, can utilize few electric weight to meet a large amount of cold and hot place demands, enable to measure and effectively utilize, save fully the energy; System architecture is simple and reliable, and utilization rate of equipment and installations is high, and cost of investment is low, just can be by the energy expenditure of saving, the cost of recouping the investment about 1 year.

Accompanying drawing explanation

Fig. 1 is the structural representation of industrial cold and hot balancing machine group system of the present invention;

Fig. 2 is the schematic diagram of the control device of industrial cold and hot balancing machine group system of the present invention;

Fig. 3 is industrial cold and hot balancing machine group system control method flow chart of the present invention.

The cold and hot balance unit of the label of each parts in above figure: 100-, 110-compressor, 120-cold water evaporimeter, 130-hot water condenser, 140-electric T-shaped valve, 141-heating power expansion valve, 142-cross valve, 143-check valve, 150-gas-liquid separator, 160-evaporator fin, 161-outdoor fan, 200-cold wind subsystem, 210-refrigerant water pump, 220-combined type wind cabinet chilled water coil, 230-chilled water expansion tank, 300-hot blast subsystem, 310-heating agent water pump, 320-combined type wind cabinet hot-water coil pipe, 330-heat medium water expansion tank, the auxiliary heat engine group of 340-, the auxiliary heat-exchanger pump of 350-, 400-hot water subsystem, 410-hot water storage tank, 420-hot-tub, 430-entering water electromagnetic valve, 500-control device, 510-operational mode parameter setting module, the cold and hot balance unit of 520-control module, 530-humidity detects control module, 531-dry-bulb temperature sensor, 532-wet bulb temperature sensor, 533-cold wind fan frequency conversion controller, 540-intensification hot water detects control module, 541-heat accumulating water temperature sensor, 542-intensification workshop temperature sensor, 543-air-heater frequency-variable controller, 544-entering water electromagnetic valve driver.

The specific embodiment

In order to understand better technique scheme of the present invention, below in conjunction with drawings and Examples, describe in detail further.Fig. 1 is that industrial cold and hot balancing machine group system of the present invention is for embodiment of electron trade, comprise cold and hot balance unit 100, cold wind subsystem 200 for cool-down dehumidification workshop supply cold wind, hot blast subsystem 300 for intensification workshop supply hot blast, for the hot water subsystem 400 of hot-water supply between cleaning Vehicle, and control device 500; In the embodiment shown in fig. 1, described cold and hot balance unit 100 comprises the refrigerant circulation loop of the cold and hot configuration of equilibrium and the refrigerant circulation loop of heat pump configuration; The configuration that described control device 500 is controlled refrigerant circulation loop by electric T-shaped valve 140 is switched;

The refrigerant circulation loop of the described cold and hot configuration of equilibrium is from the exhaust outlet of compressor 110, by the cross valve 142 connecting successively, hot water condenser 130 and heating power expansion valve 141, be connected to the port A of electric T-shaped valve 140, via the cold water evaporimeter 120 and the check valve 143 that are connected to electric T-shaped valve 140 port C, by cross valve 142 and gas-liquid separator 150, be connected to the air entry of compressor 110 again;

The refrigerant circulation loop of described heat pump configuration is from the exhaust outlet of compressor 110, by the cross valve 142 connecting successively, hot water condenser 130 and heating power expansion valve 141, be connected to the port A of electric T-shaped valve 140, via the evaporator fin 160 that is connected to electric T-shaped valve 140 port B, by cross valve 142 and gas-liquid separator 150, be connected to the air entry of compressor 110 again;

The delivery port of described hot water condenser 130, successively by the hot water storage tank 410 of hot water subsystem 400 and the combined type wind cabinet hot-water coil pipe 320 of hot blast subsystem 300, through heating agent water pump 310, be connected to the water inlet of hot water condenser 130, form the heat medium water closed circuit of industrial cold and hot balancing machine group system; Described cold and hot balance unit 100 by heat transmission and be stored in hot water storage tank 410, and provides heat by heat medium water for hot blast subsystem 300 and hot water subsystem 400 by heat medium water;

The delivery port of described cold water evaporimeter 120, by the combined type wind cabinet chilled water coil 220 of cold wind subsystem, is connected to the water inlet of cold water evaporimeter 120 through refrigerant water pump 210, form the chilled water closed circuit of industrial cold and hot balancing machine group system; Described cold and hot balance unit 100 provides cold by chilled water for cold wind subsystem;

Described industrial cold and hot balancing machine group system is controlled by 500 pairs of cold and hot balance units 100 of control device, the balance that realizes the cooling and heating load between intensification workshop, cool-down dehumidification workshop and cleaning Vehicle shifts, and meets cooling and heating load and the humiture requirement in each workshop.

According to industrial cold and hot balancing machine group system of the present invention embodiment, described electric T-shaped valve 140 is three-way electric regulating valves, described control device 500 can be according to the variation of cooling and heating load, by changing the assignment of traffic of electric T-shaped valve 140 port B and port C, dynamic adjustments flows through the refrigerant flow of cold water evaporimeter 120 and evaporator fin 160, realizes the more load balance of wide region and shifts.

In the embodiment of the of the present invention industrial cold and hot balancing machine group system shown in Fig. 1, on described chilled water closed circuit and heat medium water closed circuit, be respectively equipped with chilled water expansion tank 230 and heat medium water expansion tank 330, can autobalance chilled water and the water yield and the pressure of heat medium water.

In the embodiment of the of the present invention industrial cold and hot balancing machine group system shown in Fig. 1, described industrial cold and hot balancing machine group system is also provided with auxiliary heat engine group 340, described auxiliary heat engine group 340 is by auxiliary heat-exchanger pump 350, be connected in parallel in the water outlet and water return pipeline of heat medium water, when cold and hot balance unit 100 heating capacities are not enough, described auxiliary heat engine group 340 provides additional heat by heat medium water for hot blast subsystem and hot water subsystem.Described auxiliary heat engine group 340 can be air-source heat pump hot water group, can be also the Hot water units of electric heater, gas heater or other types.

An embodiment of the control device 500 of industrial cold and hot balancing machine group system of the present invention as shown in Figure 2, comprise operational mode parameter setting module 510, cold and hot balance unit control module 520, humidity detects control module 530 and intensification hot water detects control module 540; The input of described cold and hot balance unit control module 520, is connected to operational mode parameter setting module 510 and intensification hot water and detects control module 540; The output of described cold and hot balance unit control module 520, is connected to compressor 110, electric T-shaped valve 140, refrigerant water pump 210 and heating agent water pump 310; Described humidity detects the input of control module 530, is connected to operational mode parameter setting module 510, dry-bulb temperature sensor 531 and wet bulb temperature sensor 532; Described humidity detects the output of control module 530, is connected to the blower fan of combined type wind cabinet chilled water coil 220 by cold wind fan frequency conversion controller 533; Described intensification hot water detects the input of control module 540, is connected to operational mode parameter setting module 510, intensification workshop temperature sensor 542 and heat accumulating water temperature sensor 541; Described intensification hot water detects the output of control module 540, is connected to the blower fan of combined type wind cabinet hot-water coil pipe 320 by air-heater frequency-variable controller 543, by entering water electromagnetic valve driver 544, is connected to entering water electromagnetic valve 430.

Fig. 3 is the flow chart of an embodiment of industrial cold and hot balancing machine group system control method of the present invention, comprises the following steps:

In this step, cold and hot balance unit control module 520 is switched to the cold and hot configuration of equilibrium by electric T-shaped valve 140 by cold and hot balance unit 100, the port A of electric T-shaped valve is switched to port C, compressor 110 starts, set up the refrigerant circulation loop of the cold and hot configuration of equilibrium: the air entry of the port A-> port C-> cold water evaporimeter 120-> check valve 143-> cross valve 142-> gas-liquid separator 150-> compressor 110 of exhaust outlet-> cross valve 142-> hot water condenser 130-> heating power expansion valve 141-> electric T-shaped valve 140 of compressor 110, cold and hot balance unit control module 520 is controlled heating agent water pump 310 and is started, and sets up the heat medium water circulation between hot water condenser 130, hot water storage tank 410 and combined type wind cabinet hot-water coil pipe 320, cold and hot balance unit control module 520 is controlled refrigerant water pump 210 and is started, and sets up the chilled water circulation between combined type wind cabinet chilled water coil 220 and cold water evaporimeter 120.The cold and hot configuration of equilibrium comprises pattern 1-4, in pattern 1-4, the high-temperature high-pressure gas refrigerant that compressor 110 is discharged arrives hot water condenser 130 by cross valve 142, by 310 circulations of heating agent water pump, transfer of heat, in combined type wind cabinet hot-water coil pipe 320 and hot water storage tank 410, is heated up and/or cleaning workshop hot water is provided for the workshop of heating up.Then, cold-producing medium carries out throttling by heating power expansion valve 141, after throttling, arrive electric T-shaped valve 140, the port A of electric T-shaped valve 140 is switched to port C, cold-producing medium flow into cold water evaporimeter 120 by port C, by 210 circulations of refrigerant water pump, cold is transferred in combined type wind cabinet chilled water coil 220, for cool-down dehumidification is carried out in cool-down dehumidification workshop.

In this step, cold and hot balance unit control module 520 is switched to heat pump configuration by electric T-shaped valve 140 by cold and hot balance unit 100, the port A of electric T-shaped valve is switched to port B, compressor 110 starts, set up the refrigerant circulation loop of heat pump configuration: the air entry of the port A-> port B-> evaporator fin 160-> cross valve 142-> gas-liquid separator 150-> compressor 110 of exhaust outlet-> cross valve 142-> hot water condenser 130-> heating power expansion valve 141-> electric T-shaped valve 140 of compressor 110, cold and hot balance unit control module 520 is controlled heating agent water pump 310 and is started, and sets up the heat medium water circulation between hot water condenser 130, hot water storage tank 410 and combined type wind cabinet hot-water coil pipe 320.Heat pump configuration comprises pattern 5-7, in pattern 5-7, the high-temperature high-pressure gas refrigerant that compressor 110 is discharged arrives hot water condenser 130 by cross valve 142, by heating agent water pump, circulate, transfer of heat, in combined type wind cabinet hot-water coil pipe 320 and hot water storage tank 410, is heated up and/or cleaning workshop hot water is provided for the workshop of heating up.Then, cold-producing medium enters heating power expansion valve 141 and carries out throttling, arrives the port A of electric T-shaped valve 140 after throttling, because cool-down dehumidification workshop does not need work, the port A of electric T-shaped valve 140 is switched to port B, and cold-producing medium flow into evaporator fin 160 by port B; By the forced circulation of outdoor fan 161, cold-producing medium absorbs in air after heat gasification from outdoor environment, then gets back to compressor 110 by cross valve 142 and gas-liquid separator 150.

In this step, intensification hot water detects control module 540 and detects in real time the heat accumulating water temperature Txc of hot water storage tank 410, heat accumulating water temperature Txc and water outlet temperature setting value Tcs are compared, by entering water electromagnetic valve driver 544, control entering water electromagnetic valve 430: if Txc < is Tcs, close entering water electromagnetic valve 430, hot water storage tank 410 enters accumulation of heat soaking condition; If Txc >=Tcs, opens entering water electromagnetic valve 430, the hot water of hot water storage tank is added in the hot-tub 420 between cleaning Vehicle.

S460: if operational mode is mode 7: intensification hot water detects control module according to intensification workshop temperature deviation, regulates the rotation speed of fan of hot-water coil pipe.

In this step, intensification hot water detects control module 540 and detects in real time heat accumulating water temperature Txc and the intensification workshop temperature T sw of hot water storage tank 410, workshop temperature T sw and intensification workshop desired temperature Tss relatively heat up, according to temperature deviation, regulate the output frequency of air-heater frequency-variable controller 543, the rotation speed of fan of dynamic adjustments combined type wind cabinet hot-water coil pipe 320: if Tsw < is Tss-3, the blower fan high-speed cruising of combined type wind cabinet hot-water coil pipe 320; If Tss-1 > is Tsw >=Tss-3, the operation of the blower fan middling speed of combined type wind cabinet hot-water coil pipe 320; If Tss+1 > is Tsw >=Tss-1, the blower fan low cruise of combined type wind cabinet hot-water coil pipe 320; If Tsw >=Tss+1, the blower fan of combined type wind cabinet hot-water coil pipe 320 is out of service.

S500: intensification hot water detects control module 540 relatively heat accumulating water temperature Txc and water tank water temperature higher limit Txs, if Txc > is Txs, to cold and hot balance unit control module 520, send hot water storage tank overtemperature signal, control compressor 110 and shut down, cold and hot balance unit 100 utilizes the heat of hot water storage tank 410 savings to continue to carry out intensification workshop and heats up and produce the hot water process of cleaning; Until heat accumulating water temperature Txc≤water outlet temperature setting value Tcs restarts compressor 110.

According to an embodiment of industrial cold and hot balancing machine group system control method of the present invention, described step S320 comprises following action:

S322: if cool-down dehumidification priority status is chosen as cooling priority status, cold wind fan frequency conversion controller 533 output high-frequency current, drive combined type wind cabinet chilled water coil 220 blower fan high-speed cruisings, strengthen the refrigeration of unit, cool-down dehumidification workshop is lowered the temperature, until Tgq≤Tjs turns automatic cool-down dehumidification state and continues operation;

S323: if cool-down dehumidification priority status is chosen as dehumidifying priority status, cold wind fan frequency conversion controller 533 output low frequency rate electric currents, drive combined type wind cabinet chilled water coil 220 blower fan low cruises, strengthen the effect on moisture extraction of unit, dehumidified in cool-down dehumidification workshop, until RH≤RHs turns automatic cool-down dehumidification state and continues operation;

S324: otherwise, humidity detects control module 530 and carries out automatic cool-down dehumidification control procedure: dry-bulb temperature Tgq and relative humidity RH are compared with cooling desired temperature Tjs and humidity set point RHs respectively, according to the output frequency of humiture deviation dynamic adjustments cold wind fan frequency conversion controller 533, the rotating speed of inorganic adjusting combined type wind cabinet chilled water coil 220 blower fans, reach the dynamic equilibrium of dehumidifying and cooling: if 3 ℃ of Tgq-Tjs <, and during RH-RHs > 10%, combined type wind cabinet chilled water coil 220 blower fans reduce the speed of service, strengthen the moisture removal of unit, if 5 ℃ of Tgq-Tjs >, and during humidity RH-RHs < 5%, combined type wind cabinet chilled water coil 220 blower fans improve the speeds of service, strengthen the refrigeration of unit, reduce the moisture removal of unit, otherwise combined type wind cabinet chilled water coil 220 blower fans maintain the current speed of service, the balanced cool-down dehumidification of unit, until the humiture in cool-down dehumidification workshop reaches the scope of setting,

S330: intensification hot water detects control module 540 and detects in real time heat accumulating water temperature Txc and the intensification workshop temperature T sw of hot water storage tank 410, controls the process of workshop intensification and hot water preparing according to intensification hot water priority status:

S331: heat up preferential if intensification hot water priority status is chosen as workshop, when Tsw < Tss-3, by entering water electromagnetic valve driver 544, control and close entering water electromagnetic valve 430, stop to moisturizing in hot-tub 420, heat supplement in hot water storage tank 410, to combined type wind cabinet hot-water coil pipe 320, improves heating effect and firing rate; When Tsw >=Tss-1, by entering water electromagnetic valve driver 544, control and open entering water electromagnetic valve 430, to moisturizing in hot-tub 420;

S332: hot water is preferential if intensification hot water priority status is chosen as cleaning, close the blower fan of combined type wind cabinet hot-water coil pipe 320, by entering water electromagnetic valve driver 544, control and open entering water electromagnetic valve 430, in hot-tub 420, supply water, until after the water in hot-tub 420 reaches demand, then the blower fan of opening combined type wind cabinet hot-water coil pipe 320 carries out workshop intensification;

S333: otherwise, intensification hot water detects control module 540 and carries out automatic heating hot water control procedure, heat up and produce to clean and carry out with hot water simultaneously in intensification workshop: intensification hot water detects control module 540 relatively heat up workshop temperature T sw and intensification workshop desired temperature Tss, according to temperature deviation, regulate the output frequency of air-heater frequency-variable controller 543, the rotation speed of fan of dynamic adjustments combined type wind cabinet hot-water coil pipe 320: if Tsw < is Tss-3, the blower fan high-speed cruising of combined type wind cabinet hot-water coil pipe 320; If Tss-1 > is Tsw >=Tss-3, the operation of the blower fan middling speed of combined type wind cabinet hot-water coil pipe 320; If Tss+1 > is Tsw >=Tss-1, the blower fan low cruise of combined type wind cabinet hot-water coil pipe 320; If Tsw >=Tss+1, the blower fan of combined type wind cabinet hot-water coil pipe 320 is out of service;

S334: intensification hot water detects control module 540 heat accumulating water temperature Txc and water outlet temperature setting value Tcs are compared, by entering water electromagnetic valve driver 544, control entering water electromagnetic valve 430: if Txc < is Tcs, close entering water electromagnetic valve 430, hot water storage tank 410 enters accumulation of heat soaking condition; If Txc >=Tcs, opens entering water electromagnetic valve 430, to hot-water supply between cleaning Vehicle.

According to an embodiment of industrial cold and hot balancing machine group system control method of the present invention, described step S340 comprises following action:

S341: humidity detects control module 530 and detects in real time dry-bulb temperature Tgq and the wet-bulb temperature Tsq in cool-down dehumidification workshop, poor by according to dry-bulb temperature Tgq and wet-bulb temperature Tsq, calculate or table look-up and obtain the relative humidity RH in cool-down dehumidification workshop, according to cool-down dehumidification priority status, control dehumidifying and cooling process:

S342: if cool-down dehumidification priority status is chosen as cooling priority status, cold wind fan frequency conversion controller 533 output high-frequency current, drive combined type wind cabinet chilled water coil 220 blower fan high-speed cruisings, strengthen the refrigeration of unit, cool-down dehumidification workshop is lowered the temperature, until Tgq≤Tjs turns automatic cool-down dehumidification state and continues operation;

S343: if cool-down dehumidification priority status is chosen as dehumidifying priority status, cold wind fan frequency conversion controller 533 output low frequency rate electric currents, drive combined type wind cabinet chilled water coil 220 blower fan low cruises, strengthen the effect on moisture extraction of unit, dehumidified in cool-down dehumidification workshop, until RH≤RHs turns automatic cool-down dehumidification state and continues operation;

S344: otherwise, humidity detects control module 530 and carries out automatic cool-down dehumidification control procedure: dry-bulb temperature Tgq and relative humidity RH are compared with cooling desired temperature Tjs and humidity set point RHs respectively, according to the output frequency of humiture deviation dynamic adjustments cold wind fan frequency conversion controller 533, the rotating speed of inorganic adjusting combined type wind cabinet chilled water coil 220 blower fans, reach the dynamic equilibrium of dehumidifying and cooling: if 3 ℃ of Tgq-Tjs <, and during RH-RHs > 10%, combined type wind cabinet chilled water coil 220 blower fans reduce the speed of service, strengthen the moisture removal of unit, if 5 ℃ of Tgq-Tjs >, and during humidity RH-RHs < 5%, combined type wind cabinet chilled water coil 220 blower fans improve the speeds of service, strengthen the refrigeration of unit, reduce the moisture removal of unit, otherwise combined type wind cabinet chilled water coil 220 blower fans maintain the current speed of service, the balanced cool-down dehumidification of unit, until the humiture in cool-down dehumidification workshop reaches the scope of setting,

S345: intensification hot water detects control module 540 and detects in real time heat accumulating water temperature Txc and the intensification workshop temperature T sw of hot water storage tank 410, workshop temperature T sw and intensification workshop desired temperature Tss relatively heat up, according to temperature deviation, regulate the output frequency of air-heater frequency-variable controller 543, the rotation speed of fan of dynamic adjustments combined type wind cabinet hot-water coil pipe 320:

S346: if Tsw < is Tss-3, the blower fan high-speed cruising of combined type wind cabinet hot-water coil pipe 320; If Tss-1 > is Tsw >=Tss-3, the operation of the blower fan middling speed of combined type wind cabinet hot-water coil pipe 320; If Tss+1 > is Tsw >=Tss-1, the blower fan low cruise of combined type wind cabinet hot-water coil pipe 320; If Tsw >=Tss+1, the blower fan of combined type wind cabinet hot-water coil pipe 320 is out of service.

According to an embodiment of industrial cold and hot balancing machine group system control method of the present invention, described step S360 comprises following action:

S361: humidity detects control module 530 and detects in real time dry-bulb temperature Tgq and the wet-bulb temperature Tsq in cool-down dehumidification workshop, poor by according to dry-bulb temperature Tgq and wet-bulb temperature Tsq, calculate or table look-up and obtain the relative humidity RH in cool-down dehumidification workshop, according to cool-down dehumidification priority status, control dehumidifying and cooling process:

S362: if cool-down dehumidification priority status is chosen as cooling priority status, cold wind fan frequency conversion controller 533 output high-frequency current, drive combined type wind cabinet chilled water coil 220 blower fan high-speed cruisings, strengthen the refrigeration of unit, cool-down dehumidification workshop is lowered the temperature, until Tgq≤Tjs turns automatic cool-down dehumidification state and continues operation;

S363: if cool-down dehumidification priority status is chosen as dehumidifying priority status, cold wind fan frequency conversion controller 533 output low frequency rate electric currents, drive combined type wind cabinet chilled water coil 220 blower fan low cruises, strengthen the effect on moisture extraction of unit, dehumidified in cool-down dehumidification workshop, until RH≤RHs turns automatic cool-down dehumidification state and continues operation;

S364: otherwise, humidity detects control module 530 and carries out automatic cool-down dehumidification control procedure: dry-bulb temperature Tgq and relative humidity RH are compared with cooling desired temperature Tjs and humidity set point RHs respectively, according to the output frequency of humiture deviation dynamic adjustments cold wind fan frequency conversion controller 533, the rotating speed of inorganic adjusting combined type wind cabinet chilled water coil 220 blower fans, reach the dynamic equilibrium of dehumidifying and cooling: if 3 ℃ of Tgq-Tjs <, and during RH-RHs > 10%, combined type wind cabinet chilled water coil 220 blower fans reduce the speed of service, strengthen the moisture removal of unit, if 5 ℃ of Tgq-Tjs >, and during humidity RH-RHs < 5%, combined type wind cabinet chilled water coil 220 blower fans improve the speeds of service, strengthen the refrigeration of unit, reduce the moisture removal of unit, otherwise combined type wind cabinet chilled water coil 220 blower fans maintain the current speed of service, the balanced cool-down dehumidification of unit, until the humiture in cool-down dehumidification workshop reaches the scope of setting,

S365: intensification hot water detects control module 540 and detects in real time the heat accumulating water temperature Txc of hot water storage tank 410, heat accumulating water temperature Txc and water outlet temperature setting value Tcs are compared, by entering water electromagnetic valve driver 544, control entering water electromagnetic valve 430: if Txc < is Tcs, close entering water electromagnetic valve 430, hot water storage tank 410 enters accumulation of heat soaking condition; If Txc >=Tcs, opens entering water electromagnetic valve 430, to hot-water supply between cleaning Vehicle.

According to an embodiment of industrial cold and hot balancing machine group system control method of the present invention, described step S380 comprises following action:

S381: humidity detects control module 530 and detects in real time dry-bulb temperature Tgq and the wet-bulb temperature Tsq in cool-down dehumidification workshop, poor by according to dry-bulb temperature Tgq and wet-bulb temperature Tsq, calculate or table look-up and obtain the relative humidity RH in cool-down dehumidification workshop, according to cool-down dehumidification priority status, control dehumidifying and cooling process:

S382: if cool-down dehumidification priority status is chosen as cooling priority status, cold wind fan frequency conversion controller 533 output high-frequency current, drive combined type wind cabinet chilled water coil 220 blower fan high-speed cruisings, strengthen the refrigeration of unit, cool-down dehumidification workshop is lowered the temperature, until Tgq≤Tjs turns automatic cool-down dehumidification state and continues operation;

S383: if cool-down dehumidification priority status is chosen as dehumidifying priority status, cold wind fan frequency conversion controller 533 output low frequency rate electric currents, drive combined type wind cabinet chilled water coil 220 blower fan low cruises, strengthen the effect on moisture extraction of unit, dehumidified in cool-down dehumidification workshop, until RH≤RHs turns automatic cool-down dehumidification state and continues operation;

S384: otherwise, humidity detects control module 530 and carries out automatic cool-down dehumidification control procedure: dry-bulb temperature Tgq and relative humidity RH are compared with cooling desired temperature Tjs and humidity set point RHs respectively, according to the output frequency of humiture deviation dynamic adjustments cold wind fan frequency conversion controller 533, the rotating speed of inorganic adjusting combined type wind cabinet chilled water coil 220 blower fans, reach the dynamic equilibrium of dehumidifying and cooling: if 3 ℃ of Tgq-Tjs <, and during RH-RHs > 10%, combined type wind cabinet chilled water coil 220 blower fans reduce the speed of service, strengthen the moisture removal of unit, if 5 ℃ of Tgq-Tjs >, and during humidity RH-RHs < 5%, combined type wind cabinet chilled water coil 220 blower fans improve the speeds of service, strengthen the refrigeration of unit, reduce the moisture removal of unit, otherwise combined type wind cabinet chilled water coil 220 blower fans maintain the current speed of service, the balanced cool-down dehumidification of unit, until the humiture in cool-down dehumidification workshop reaches the scope of setting.

According to an embodiment of industrial cold and hot balancing machine group system control method of the present invention, described step S420 comprises following action:

S421: intensification hot water detects control module 540 and detects in real time heat accumulating water temperature Txc and the intensification workshop temperature T sw of hot water storage tank 410, controls the process of workshop intensification and hot water preparing according to intensification hot water priority status:

S422: heat up preferential if intensification hot water priority status is chosen as workshop, when Tsw < Tss-3, by entering water electromagnetic valve driver 544, control and close entering water electromagnetic valve 430, stop to moisturizing in hot-tub 420, heat supplement in hot water storage tank 410, to combined type wind cabinet hot-water coil pipe 320, improves heating effect and firing rate; When Tsw >=Tss-1, by entering water electromagnetic valve driver 544, control and open entering water electromagnetic valve 430, to moisturizing in hot-tub 420;

S423: hot water is preferential if intensification hot water priority status is chosen as cleaning, close the blower fan of combined type wind cabinet hot-water coil pipe 320, by entering water electromagnetic valve driver 544, control and open entering water electromagnetic valve 430, in hot-tub 420, supply water, until after the water in hot-tub 420 reaches demand, then the blower fan of opening combined type wind cabinet hot-water coil pipe 320 carries out workshop intensification;

S424: otherwise, intensification hot water detects control module 540 and carries out automatic heating hot water control procedure, heat up and produce to clean and carry out with hot water simultaneously in intensification workshop: intensification hot water detects control module 540 relatively heat up workshop temperature T sw and intensification workshop desired temperature Tss, according to temperature deviation, regulate the output frequency of air-heater frequency-variable controller 543, the rotation speed of fan of dynamic adjustments combined type wind cabinet hot-water coil pipe 320: if Tsw < is Tss-3, the blower fan high-speed cruising of combined type wind cabinet hot-water coil pipe 320; If Tss-1 > is Tsw >=Tss-3, the operation of the blower fan middling speed of combined type wind cabinet hot-water coil pipe 320; If Tss+1 > is Tsw >=Tss-1, the blower fan low cruise of combined type wind cabinet hot-water coil pipe 320; If Tsw >=Tss+1, the blower fan of combined type wind cabinet hot-water coil pipe 320 is out of service;

S425: intensification hot water detects control module 540 heat accumulating water temperature Txc and water outlet temperature setting value Tcs are compared, by entering water electromagnetic valve driver 544, control entering water electromagnetic valve 430: if Txc < is Tcs, close entering water electromagnetic valve 430, hot water storage tank 410 enters accumulation of heat soaking condition; If Txc >=Tcs, opens entering water electromagnetic valve 430, to hot-water supply between cleaning Vehicle.

Those of ordinary skill in the art will be appreciated that; above embodiment is only for technical scheme of the present invention is described; and be not used as limitation of the invention; any variation of the above embodiment being done based on connotation of the present invention, modification, all will drop in the protection domain of claim of the present invention.

Claims

1. an industrial cold and hot balancing machine group system, comprises cold and hot balance unit, is the cold wind subsystem of cool-down dehumidification workshop supply cold wind, for the hot blast subsystem of intensification workshop supply hot blast, is the hot water subsystem of hot-water supply between cleaning Vehicle, and control device; It is characterized in that:

2. industrial cold and hot balancing machine group system according to claim 1, it is characterized in that described electric T-shaped valve is three-way electric regulating valve, described control device can be according to the variation of cooling and heating load, by changing the assignment of traffic of electric T-shaped valve port B and port C, dynamic adjustments flows through the refrigerant flow of cold water evaporimeter and evaporator fin.

3. industrial cold and hot balancing machine group system according to claim 1, it is characterized in that on described chilled water closed circuit and heat medium water closed circuit, be respectively equipped with chilled water expansion tank and heat medium water expansion tank, can autobalance chilled water and the water yield and the pressure of heat medium water.

4. according to the industrial cold and hot balancing machine group system described in claim 1,2 or 3, it is characterized in that described industrial cold and hot balancing machine group system is also provided with auxiliary heat engine group, described auxiliary heat engine group is by auxiliary heat-exchanger pump, be connected in parallel in the water outlet and water return pipeline of heat medium water, when cold and hot balance unit heating capacity is not enough, described auxiliary heat engine group provides additional heat by heat medium water for hot blast subsystem and hot water subsystem.

5. for an industrial cold and hot balancing machine group system control method for the industrial cold and hot balancing machine group system described in claim 1,2 or 3, it is characterized in that comprising the following steps:

6. industrial cold and hot balancing machine group system control method according to claim 5, is characterized in that described step

S320 comprises following action:

7. industrial cold and hot balancing machine group system control method according to claim 5, is characterized in that described step S340 comprises following action:

8. industrial cold and hot balancing machine group system control method according to claim 5, is characterized in that described step

S360 comprises following action:

9. industrial cold and hot balancing machine group system control method according to claim 5, is characterized in that described step

S380 comprises following action:

10. industrial cold and hot balancing machine group system control method according to claim 5, is characterized in that described step

S420 comprises following action: