CN106766853B - Heat pump drying system for coating production line and control method thereof - Google Patents
Heat pump drying system for coating production line and control method thereof Download PDFInfo
- Publication number
- CN106766853B CN106766853B CN201611168497.3A CN201611168497A CN106766853B CN 106766853 B CN106766853 B CN 106766853B CN 201611168497 A CN201611168497 A CN 201611168497A CN 106766853 B CN106766853 B CN 106766853B
- Authority
- CN
- China
- Prior art keywords
- air flow
- water tank
- pipeline
- drying chamber
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The invention provides a heat pump drying system for a coating production line and a control method thereof, wherein the heat pump drying system not only can meet the requirements of the process temperature of the whole machine cleaning, moisture drying and paint drying of the coating production line, but also can prepare chilled water from cold energy generated in the heating process and convey the chilled water to each post air conditioning chamber for post air conditioning; the heat pump drying system not only enables water resources to be recycled, fully utilizes heat, saves water resources, but also reduces energy consumption and operation cost.
Description
Technical Field
The invention relates to a heat pump drying system, in particular to a heat pump drying system for a coating production line and a control method thereof.
Background
The heat pump is a device capable of obtaining low-grade heat energy from air, water or soil in nature, providing available high-grade heat energy through electric power acting, and the traditional heating and drying system generally adopts a boiler heating aspect such as a coal boiler, an electric boiler, a diesel oil boiler and a gas boiler.
At present, a drying system becomes an indispensable process of a coating production line, the energy sources used by the drying system are mainly fuel gas and electric power, the energy consumption is high, the carbon dioxide emission is large, the sustainable development is not facilitated, and the heat pump drying system is relatively energy-saving, environment-friendly and low in running cost. The heat pump drying system mainly comprises a compressor, a condenser, a throttling device, an evaporator and other parts, wherein the heat exchange is carried out between the refrigerant of the condenser and the air flow in the moisture drying chamber, and the fan is used for driving the air flow to flow for drying, so that the refrigerant of the condenser is required to be continuously subjected to heat exchange with a large amount of air flow in the moisture drying chamber, and a large amount of hot water is required to be consumed for heat exchange with the refrigerant of the condenser, so that a large amount of water is consumed, water resources are wasted, and a large amount of heat is lost; in addition, generally, an air conditioning system is independently installed in a working area of workers, so that energy consumption is high and operation cost is high. Therefore, there is a need for improvements to the existing solutions to solve the above-mentioned problems.
Disclosure of Invention
The invention provides a heat pump drying system for a coating production line and a control method thereof, wherein the heat pump drying system is adopted on the coating production line, cold energy generated in the heating process is made into chilled water and is transmitted to each post air conditioning chamber for post air conditioning, so that water resources are recycled, heat of air flow in the water drying chamber is fully utilized, water resources are saved, and energy consumption and running cost are reduced.
In order to achieve the above purpose, the following technical scheme is adopted: the heat pump drying system for the coating production line comprises an evaporator, a compressor, a condenser, a heat pump heat exchange box, a moisture drying chamber, a throttling device, a cold water tank, a hot water tank and a heat pump unit for providing heat for the hot water tank, wherein the evaporator comprises two branch pipelines, one branch pipeline is provided with a water inlet and a water outlet, and the other branch pipeline is provided with a refrigerant outlet and a refrigerant inlet; the water inlet of the evaporator is connected with the hot water tank, the water outlet of the evaporator is connected with the cold water tank, the hot water tank is communicated with the cold water tank through a pipeline, a hot water valve and a cold water valve are respectively arranged at two ends of the pipeline, the condenser comprises an inlet, an outlet and a bent pipeline, the compressor is arranged between the inlet of the condenser and the refrigerant outlet of the evaporator through a pipeline, and the outlet of the condenser is communicated with the refrigerant inlet of the evaporator through a throttling device; the heat pump heat exchange box comprises a heat exchange box body, a fan I, a circulating airflow channel, an airflow baffle and an airflow outlet, wherein the condenser and the fan I are arranged in the heat pump heat exchange box, the fan I is arranged outside the curved pipeline corresponding to the condenser, the circulating airflow channel is arranged at an air outlet of the fan I, the airflow baffle is arranged on one side, far away from the fan I, of the circulating airflow channel, the airflow baffle comprises an upper baffle and a lower baffle which are arranged at the top and the bottom in the inner cavity of the heat exchange box body in a staggered manner, and an S-shaped channel for airflow to pass through is formed by the upper baffle and the lower baffle; the moisture drying chamber comprises a heat preservation layer, an air flow inlet, a fan II, an air port belt, a baffle plate and a moisture drying chamber door, wherein the moisture drying chamber door is arranged on the front surface of the moisture drying chamber, the heat preservation layer is arranged on the inner layer of the moisture drying chamber body, baffles are arranged on two sides of the moisture drying chamber, the baffles are close to the heat preservation layer and are connected with the top of the moisture drying chamber, baffle openings are arranged between the lower part of the baffles and the bottom of the moisture drying chamber, the top of the moisture drying chamber is provided with the air flow inlet, the fan II is arranged at the air flow inlet, the air port belt is arranged at the lower end of the fan II, a plurality of air ports are arranged on the air port belt, the air port faces the fan II, two ends of the air port belt are respectively connected with the upper part of the baffles, and the lower part of the moisture drying chamber is also provided with an air outlet; the air flow outlet of the heat pump heat exchange box is connected with the air flow inlet of the moisture drying chamber, one side of the circulating air flow channel, which is close to the fan I, is provided with a plurality of air outlet doors, and the lower end of the circulating air flow channel is connected with the air outlet of the moisture drying chamber through the circulating fan.
Further, the distance between the air outlet and the bottom of the moisture drying chamber is higher than the distance between the baffle opening and the bottom of the moisture drying chamber.
Further, the upper part of the moisture drying chamber is also provided with an air port.
Further, the heat pump drying system further comprises a slow hot water tank, a slow hot water tank pump, a hot water pump, a slow cold water tank pump and a slow cold water tank, wherein an outlet of the slow cold water tank is provided with three branches, one branch is connected with the cold water tank through a cold water valve, the second branch is connected with the hot water tank through the slow cold water tank pump, a disc-shaped pipeline, the slow hot water tank pump, the slow hot water tank and the hot water valve in sequence, and the third branch is directly connected with the hot water tank through the hot water pump; the utility model provides a circulating fan, moisture drying chamber's air outlet on be provided with the air current valve on the pipeline between the air outlet of circulating fan and air current valve, be equipped with U pipeline on the pipeline between circulating fan and air current valve, be provided with U pipeline export, U pipeline import on the U pipeline, U pipeline export, U pipeline import link to each other with the pipeline between circulating fan and the air current valve respectively, U pipeline export is close to circulating fan, set up U pipeline valve on the U pipeline respectively in U pipeline export department and U pipeline import department, the disk pipeline between slow hot water pond pump and slow cold water pond pump runs through in U pipeline.
Furthermore, the heat pump drying system is also provided with a washer water tank, a paint drying room, a cold water tank, an air conditioning room and an electric part, and water in the hot water tank is respectively conveyed into the washer water tank and the paint drying room after heat is provided by the heat pump unit; the evaporator is internally provided with a branch circuit for heat transfer between cold water in the cold water tank and refrigerant, the cold water tank is used for containing tap water, cold water in the cold water tank and the refrigerant to form chilled water after heat transfer, a fan disc and a temperature regulator are arranged in the air conditioner, the fan disc is provided with three branch circuits, one branch circuit is connected with the cold water tank, the second branch circuit is connected with the water tank of the cleaning machine, the other branch circuit is communicated with the cold water tank, the electric part comprises an electric valve for switching operation modes, and the electric valve is respectively arranged on the hot water inlet and outlet side of the water tank of the cleaning machine, the inlet side of tap water in the cold water tank and the inlet and outlet side of chilled water.
The control method of the heat pump drying system for the coating production line comprises the following steps:
starting the heat pump unit to provide heat for hot water, enabling the hot water to enter a branch pipeline of the evaporator through a water inlet of the evaporator to exchange the heat with a refrigerant of the other branch pipeline of the evaporator, reducing the temperature of the hot water into cold water, and enabling the cold water to exit from a water outlet of the evaporator and store in a cold water tank; the refrigerant absorbs heat to be changed into low-pressure air flow which flows out from a refrigerant outlet of the evaporator and is changed into high-pressure air flow through the compressor, the high-pressure air flow enters the condenser through an inlet of a condenser in a heat pump heat exchange box and transfers heat to the air flow in the heat pump heat exchange box, the air flow in the heat pump heat exchange box becomes hot air flow, the high-pressure air is condensed into high-pressure liquid which is discharged from an outlet of the condenser, the high-pressure liquid is changed into low-pressure liquid through a throttling device, and finally the low-pressure liquid returns to the evaporator through a refrigerant inlet of the evaporator; the hot air flow in the heat pump heat exchange box passes through a fan I, the S-shaped channel formed by the upper baffle and the lower baffle which are arranged at the top and the bottom in the inner cavity of the heat exchange box in a staggered manner is passed through an airflow baffle, then the hot air flows out from an airflow outlet of the heat pump heat exchange box, the hot air flows into the moisture drying chamber through an airflow inlet of the moisture drying chamber and a fan II arranged at the airflow inlet, an insulating layer is arranged in the moisture drying chamber, the baffles on two sides of the moisture drying chamber are close to the insulating layer and are connected with the top of the moisture drying chamber, the temperature in the moisture drying chamber is controlled through a temperature controller, the hot air flows through an air inlet belt connected with the upper part of the baffles, the hot air flows into the articles to be dried from the moisture drying chamber through air inlets of the air inlet belt, the hot air flows take away the water vapor in the articles to be dried into a cold air flow, the cold air flows out through a baffle opening arranged between the lower part of the baffle and the bottom of the moisture drying chamber, the air outlet of the lower part of the moisture drying chamber is discharged from the moisture drying chamber, then the circulating air flows into a circulating air flow channel in the heat exchange box through a circulating air flow channel in the heat pump heat exchange box, the circulating air flow channel is arranged on one side of the circulating air flow channel close to the heat exchange box, and the hot air flows into the fresh air flow in the heat exchange box through the heat pump heat exchange chamber, and the fresh air flows in the hot air flow enters into the heat exchange box through the heat pump heat exchange chamber, and the hot air flow and the heat pump heat exchange box, and the air flow is sequentially enters into the fresh air flow and the air flow through the heat exchange box and the heat exchange box.
Further, the distance between the air outlet and the bottom of the moisture drying chamber is higher than the distance between the baffle opening and the bottom of the moisture drying chamber.
Further, the upper part of the moisture drying chamber is also provided with an air port.
Further, the heat pump drying system further comprises a slow hot water tank, a slow hot water tank pump, a hot water pump, a slow cold water tank pump and a slow cold water tank, wherein an outlet of the slow cold water tank is provided with three branches, one branch is connected with the cold water tank through a cold water valve, the second branch is connected with the hot water tank through the slow cold water tank pump, a disc-shaped pipeline, the slow hot water tank pump, the slow hot water tank and the hot water valve in sequence, and the third branch is directly connected with the hot water tank through the hot water pump; the pipeline between the circulating fan and the air outlet of the moisture drying chamber is provided with an air flow valve, a U pipeline is arranged on the pipeline between the circulating fan and the air flow valve, a U pipeline outlet and a U pipeline inlet are arranged on the U pipeline, the U pipeline outlet and the U pipeline inlet are respectively connected with the pipeline between the circulating fan and the air flow valve, the U pipeline outlet is close to the circulating fan, the U pipeline outlet and the U pipeline inlet are respectively provided with a U pipeline valve, and a disc pipeline between the slow hot water pool pump and the slow cold water pool pump penetrates through the U pipeline; the cold air flow between the circulating fan and the air outlet of the moisture drying chamber is provided with two flow paths, wherein one of the two flow paths is to open an air flow valve, and the cold air flow enters a circulating air flow channel in the heat pump heat exchange box through a pipeline between the circulating fan and the air flow valve and passes through the circulating fan; the other path is that a U pipeline outlet and a U pipeline inlet are opened, cold air flow firstly passes through the U pipeline, then passes through a disc-shaped pipeline between a slow hot water pool pump and a slow cold water pool pump, and finally enters a circulating air flow channel through a circulating fan; the cold air flow enters the heat pump heat exchange box through an air outlet door arranged on the circulating air flow channel.
Furthermore, the heat pump drying system is also provided with a washer water tank, a paint drying room, a cold water tank, an air conditioning room and an electric part, and water in the hot water tank is respectively conveyed into the washer water tank and the paint drying room after heat is provided by the heat pump unit; the evaporator is internally provided with a branch circuit for heat transfer between cold water in the cold water tank and refrigerant, the cold water tank is used for containing tap water, cold water in the cold water tank and the refrigerant to form chilled water after heat transfer, a fan disc and a temperature regulator are arranged in the air conditioner, the fan disc is provided with three branch circuits, one branch circuit is connected with the cold water tank, the second branch circuit is connected with the water tank of the cleaning machine, the other branch circuit is communicated with the cold water tank, the electric part comprises an electric valve for switching operation modes, and the electric valve is respectively arranged on the hot water inlet and outlet side of the water tank of the cleaning machine, the inlet side of tap water in the cold water tank and the inlet and outlet side of chilled water.
The invention has the following beneficial effects:
1. on a coating production line, the airflow in the heat pump heat exchange box forms hot airflow through heat exchange with high-pressure airflow of the condenser, the hot airflow passes through an S-shaped channel formed by an upper baffle and a lower baffle which are arranged at the top and the bottom in the inner cavity of the heat exchange box in a staggered manner through an airflow baffle, and finally the hot airflow is discharged from an airflow outlet and enters a moisture drying chamber, and the hot airflow flows in the channel in a directional manner, so that the flow of the hot airflow is facilitated, and the drying of objects is accelerated; the method comprises the steps that hot air flows in a moisture drying chamber are dried through all air inlets on an air port belt, so that the articles are enabled to be in contact with the hot air flows more fully and quickly, moisture in the articles is enabled to be evaporated into water vapor more quickly, cold air flows formed by the hot air flows are discharged through the baffle ports and the air outlets and enter a circulating air flow channel in a heat pump heat exchange box through a circulating fan, the air flows in the heat pump heat exchange box are changed into new air flows through an air outlet door on the circulating air flow channel and the high-pressure air flows of a condenser, the new air flows are changed into new hot air flows after exchanging heat with the high-pressure air flows of a condenser, the new hot air flows sequentially enter the moisture drying chamber through an air flow baffle, an air flow outlet and an air flow inlet to dry the articles, the heat of the air flows in the moisture drying chamber and the heat pump heat exchange box is fully utilized, the consumption of hot water is reduced, water resources and electric power are saved, and running cost is reduced; the arrangement that the distance between the baffle plate and the bottom of the moisture drying chamber and the distance between the air outlet and the bottom of the moisture drying chamber are higher than the distance between the baffle plate opening and the bottom of the moisture drying chamber is more beneficial to the contact between hot air flow entering the moisture drying chamber and articles, and the moisture is fully taken away and then output to the moisture drying chamber;
2. On a coating production line, cold water in a cold water tank in a heat pump drying system enters the slow cooling water tank by opening a cold water valve, then enters a hot water tank by a slow cooling water tank pump through a disc-shaped pipeline and a slow hot water tank pump in sequence, and can be directly conveyed into the hot water tank by the hot water pump, finally the cold water entering the hot water tank is provided with heat by a heat pump unit to become hot water, and then continuously enters a refrigerant of an evaporator to exchange heat, so that the cold water is recycled, and water resources are saved;
3. an air flow valve and a U pipeline are arranged on a pipeline between a circulating fan and an air outlet of a moisture drying chamber in the heat pump drying system, cold air flow can enter a circulating air flow channel in a heat pump heat exchange box through two paths, so that heat of the cold air flow can be utilized;
4. during the operation of the coating production line, when the temperature in the moisture drying chamber does not reach the requirement, the air flow valve is closed, cold air flow in the moisture drying chamber passes through the U-shaped pipeline, hot water in the hot water tank enters the slow hot water tank through the hot water valve, then enters the disc-shaped pipeline penetrating through the U-shaped pipeline through the slow hot water tank pump, hot water exchanges heat with the cold air flow in the disc-shaped pipeline, cold air flows into hot air flows, the hot air flows enter the heat pump heat exchange box through the circulating fan and the air outlet door of the circulating air flow channel, the hot air flows into a new hot air flow with the air flow in the heat pump heat exchange box, the new hot air flows into a new hot air flow with high temperature after exchanging heat with the high-pressure air flow of the condenser, the new hot air flow with high temperature enters the moisture drying chamber again to dry articles, the hot water becomes cold water into the slow cold water tank, then enters the hot water tank through the hot water pump between the slow cold water tank, and finally the water in the hot water tank is provided by the heat pump unit to become hot water, and the hot air flows into the hot water in the heat pump heat exchange box, and the hot air flow with high temperature in the heat exchange box; when the temperature in the moisture drying chamber is too high, cold water in the cold water tank enters the disc-shaped pipeline through the cold water valve, the slow cooling water tank and the slow cooling water tank pump, heat is exchanged between the cold water and hot air flow in the disc-shaped pipeline, the hot air flow is changed into cold air flow, the cold air flow enters the heat pump heat exchange box through the circulating fan and the air outlet door of the circulating air flow channel, the hot air flow in the heat pump heat exchange box is cooled, the cooled hot air flow enters the moisture drying chamber again to dry articles, cold water is changed into hot water and enters the slow cooling water tank, finally, the cold water enters the hot water tank, the heat pump unit supplies heat for the cold water to be hot water and then enters the evaporator to exchange heat with the refrigerant, and the circulation is performed, so that the hot air flow with certain temperature is conveyed into the moisture drying chamber for meeting the drying of the articles, and the hot air flow temperature in the moisture drying chamber can be changed to meet the drying requirement of the articles; the air flow in the heat pump heat exchange box and the moisture drying chamber can be supplemented or replaced by the air flow through an air port at the upper part of the moisture drying chamber;
5. Chilled water is produced through a water drying chamber, a washer water tank and a paint drying chamber in the heat pump drying system, the cold energy of the chilled water is supplied to an air conditioning chamber in each post requirement through a fan disc, so that the aim of cooling is achieved, meanwhile, hot water after Leng Sheng temperatures of the chilled water is dispersed can be supplied to the washer water tank for application, and can also be returned to a cold water tank for use, so that water resources are recycled, heat is fully utilized, and energy consumption and running cost are reduced.
Drawings
FIG. 1 is a schematic diagram of a heat pump drying system of the present invention;
FIG. 2 is a schematic diagram of the structure of a moisture drying chamber of the heat pump drying system of the present invention;
the marks in the figure: 1-evaporator, 101-water inlet, 102-water outlet, 103-refrigerant outlet, 104-refrigerant inlet, 2-compressor, 3-condenser, 301-inlet, 302-outlet, 303-bent pipe, 4-heat pump heat exchange tank, 400-heat exchange tank, 401-blower i, 402-circulation air flow path, 403-air outlet door, 404-air flow baffle, 405-air flow outlet, 5-moisture drying chamber, 500-air flow inlet, 501-blower ii, 502-air port belt, 503-air port, 504-heat insulating layer, 505-air outlet, 506-baffle, 507-baffle port, 508-air port, 6-throttling device, 7-hot water tank, 701-hot water valve, 702-slow hot water tank, 703-slow hot water tank pump, 704-hot water pump, 8-cold water tank, 801-cold water valve, 802-slow cold water tank, 803-slow cold water tank pump, 9-disk-shaped pipe, 10-air flow valve, 11-circulation air blower, 12-U pipe, 121-U pipe outlet, 122-U pipe inlet, 13-heat supply tank, 14-hot water tank, 14-heat pump unit, water tank, 17-air conditioner, water tank, and air conditioner, water tank, air-conditioning unit, and air-conditioning unit.
Detailed Description
The heat pump drying system for the coating production line comprises an evaporator 1, a compressor 2, a condenser 3, a heat pump heat exchange box 4, a moisture drying chamber 5, a throttling device 6, a cold water tank 8, a hot water tank 7 and a heat pump unit 13 for providing heat for the hot water tank, wherein the evaporator 1 comprises two branch pipelines, one branch pipeline is provided with a water inlet 101 and a water outlet 102, and the other branch pipeline is provided with a refrigerant outlet 103 and a refrigerant inlet 104; the water inlet 101 of the evaporator is connected with the hot water tank 7, the water outlet 102 of the evaporator is connected with the cold water tank 8, the hot water tank 7 is communicated with the cold water tank 8 through a pipeline, a hot water valve 701 and a cold water valve 801 are respectively arranged at two ends of the pipeline, the condenser 3 comprises an inlet 301, an outlet 302 and a bent pipeline 303, the compressor 2 is arranged between the inlet 301 of the condenser and the refrigerant outlet 103 of the evaporator through the pipeline, and the outlet 302 of the condenser is communicated with the refrigerant inlet 104 of the evaporator through a throttling device 6; the heat pump heat exchange box 4 comprises a heat exchange box body 400, a fan I401, a circulating air flow channel 402, an air flow baffle 404 and an air flow outlet 405, wherein the condenser 3 and the fan I401 are arranged in the heat pump heat exchange box 4, the fan I401 is arranged outside the condenser 3 corresponding to the bent pipeline, the circulating air flow channel 402 is arranged at an air outlet of the fan I401, the air flow baffle 404 is arranged at one side of the circulating air flow channel 402 far away from the fan I401, the air flow baffle 404 comprises an upper baffle and a lower baffle which are arranged at the top and the bottom in the inner cavity of the heat exchange box body 400 in a staggered manner, and an S-shaped channel for air flow passing is formed by the upper baffle and the lower baffle; the moisture drying chamber 5 comprises a heat preservation layer 504, an air inlet 500, a fan II 501, an air port belt 502, a baffle 506 and a moisture drying chamber door, wherein the moisture drying chamber door is arranged on the front surface of the moisture drying chamber, the heat preservation layer 504 is arranged in the inner layer of the moisture drying chamber, the two sides of the moisture drying chamber are provided with the baffle 506, the baffle 506 is close to the heat preservation layer 504 and is connected with the top of the moisture drying chamber 5, a baffle port 507 is arranged between the lower part of the baffle 506 and the bottom of the moisture drying chamber 5, the air inlet 500 is arranged at the top of the moisture drying chamber 5, the fan II 501 is arranged at the air inlet 500, the air port belt 502 is arranged at the lower end of the fan II 501, a plurality of air ports 503 are arranged on the air port belt 502, the air ports 503 face the fan II 501, the two ends of the air port belt 502 are respectively connected with the upper part of the baffle 506, and the lower part of the moisture drying chamber 5 is also provided with an air outlet 505; the air flow outlet 405 of the heat pump heat exchange box is connected with the air flow inlet 500 of the moisture drying chamber, one side of the circulating air flow channel 402, which is close to the fan, is provided with a plurality of air outlet doors 403, and the lower end of the circulating air flow channel 402 is connected with the air outlet 505 of the moisture drying chamber through the circulating fan 11.
Further, the distance between the air outlet 505 and the bottom of the moisture drying chamber 5 is higher than the distance between the baffle opening 507 and the bottom of the moisture drying chamber 5.
Further, an air port 508 is also provided at the upper part of the moisture drying chamber 5.
Further, the heat pump drying system further comprises a slow hot water tank 702, a slow hot water tank pump 703, a hot water pump 704, a slow cold water tank pump 803 and a slow cold water tank 802, wherein the outlet of the slow cold water tank 802 is provided with three branches, one branch is connected with the cold water tank 8 through a cold water valve 801, the second branch is connected with the hot water tank 7 through the slow cold water tank pump 803, a disc-shaped pipeline 9, the slow hot water tank pump 703, the slow hot water tank 702 and the hot water valve 701 in sequence, and the third branch is directly connected with the hot water tank 7 through the hot water pump 704; the circulating fan 11 and the pipeline between the air outlet 505 of the moisture drying chamber are provided with an air flow valve 11, a U pipeline 12 is arranged on the pipeline between the circulating fan 11 and the air flow valve 10, a U pipeline outlet 121 and a U pipeline inlet 122 are arranged on the U pipeline 12, the U pipeline outlet 121 and the U pipeline inlet 122 are respectively connected with the pipeline between the circulating fan 11 and the air flow valve 10, the U pipeline outlet 121 is close to the circulating fan, a U pipeline valve 123 is respectively arranged at the U pipeline outlet and the U pipeline inlet, and a disc-shaped pipeline 9 between the slow-heating water pool pump 703 and the slow-cooling water pool pump 803 penetrates through the U pipeline 12.
Furthermore, the heat pump drying system is also provided with a washer water tank 16, a paint drying room 17, a cold water tank 14, an air conditioning room 15 and an electric part, and water in the hot water tank is respectively conveyed into the washer water tank 16 and the paint drying room 17 after the heat pump unit 13 provides heat; the evaporator 1 is internally provided with a branch path for heat transfer between cold water in the cold water tank 8 and refrigerant, the cold water tank 14 is used for containing tap water, cold water in the cold water tank 8 and the refrigerant to form chilled water after heat transfer, the air conditioning chamber 15 is internally provided with a fan disc 151 and a temperature regulator, the fan disc 151 is provided with three branches, one branch path is connected with the cold water tank 14, the second branch path is connected with the washer water tank 16, the other branch path is communicated with the cold water tank 8, the electric part comprises an electric valve for switching an operation mode, and the electric valve is respectively arranged on the hot water inlet and outlet side of the washer water tank 16, the inlet side of tap water in the cold water tank 14 and the chilled water inlet and outlet side.
A control method for a heat pump drying system of a coating production line, comprising the steps of:
starting the heat pump unit 13 to provide heat for hot water, enabling the hot water to enter one branch pipeline of the evaporator 1 through the water inlet 101 of the evaporator to exchange heat with the refrigerant of the other branch pipeline of the evaporator, reducing the temperature of the hot water to cold water, and enabling the cold water to exit from the water outlet 102 of the evaporator and store in the cold water tank 8; the refrigerant absorbs heat to be changed into low-pressure air flow which flows out from a refrigerant outlet 103 of the evaporator and then becomes high-pressure air flow through a compressor 2, the high-pressure air flow enters an inlet 301 of a condenser in a heat pump heat exchange box 4 and enters the condenser 3 to transfer heat to the air flow in the heat pump heat exchange box 4, the air flow in the heat pump heat exchange box 4 becomes hot air flow, the high-pressure air is condensed into high-pressure liquid which is discharged from an outlet 302 of the condenser 3 and then becomes low-pressure liquid through a throttling device 6, and finally returns to the evaporator 1 through a refrigerant inlet 104 of the evaporator; the hot air flow in the heat pump heat exchange box 4 passes through a fan I401, passes through an S-shaped channel formed by an upper baffle plate and a lower baffle plate which are arranged at the top and the bottom in the inner cavity of the heat exchange box body 400 in a staggered way through an air flow baffle plate 404, then goes out from an air flow outlet 405 of the heat pump heat exchange box, then enters a moisture drying chamber 5 through an air flow inlet 500 of the moisture drying chamber and a fan II 501 arranged at the air flow inlet 500, a heat preservation layer 504 is arranged in the moisture drying chamber, baffles 506 on two sides of the moisture drying chamber are close to the heat preservation layer 504 and are connected with the top of the moisture drying chamber 5, the temperature in the moisture drying chamber 5 is controlled through a temperature device, the hot air flow passes through an air port belt 502 connected with the upper part of the baffles 506, and the articles to be dried entering the moisture drying chamber from the moisture drying chamber door are dried through air ports 503 of the air port belt 502, the water in the articles to be dried is evaporated into water vapor, the water vapor is carried away by hot air flow to form cold air flow, the cold air flow is discharged from the moisture drying chamber 5 through a baffle opening 507 arranged between the lower part of a baffle 506 and the bottom of the moisture drying chamber 5, then is discharged from the moisture drying chamber 5 through an air outlet 505 at the lower part of the moisture drying chamber, enters a circulating air flow channel 402 in a heat pump heat exchange box through a circulating fan 11, enters an air outlet door 403 arranged at one side of the circulating air flow channel 402 close to the fan into the heat pump heat exchange box 4 to become new air flow in the heat pump heat exchange box, the new air flow in the heat pump heat exchange box exchanges heat with the high-pressure air flow of the condenser to become new hot air flow, and the new hot air flow enters the moisture drying chamber 5 through an air flow baffle 404, an air flow outlet 405 and an air flow inlet 500 of the moisture drying chamber in sequence to dry the articles, the air flow in the moisture drying chamber 5 and the heat pump heat exchange box 5 is recycled.
Further, the distance between the air outlet 505 and the bottom of the moisture drying chamber 5 is higher than the distance between the baffle opening 507 and the bottom of the moisture drying chamber 5.
Further, the upper part of the moisture drying chamber 5 is also provided with an air port 508.
Further, the heat pump drying system further comprises a slow hot water tank 702, a slow hot water tank pump 703, a hot water pump 704, a slow cold water tank pump 803 and a slow cold water tank 802, wherein the outlet of the slow cold water tank 802 is provided with three branches, one branch is connected with the cold water tank 8 through a cold water valve 801, the second branch is connected with the hot water tank 7 through the slow cold water tank pump 803, a disc-shaped pipeline 9, the slow hot water tank pump 703, the slow hot water tank 702 and the hot water valve 701 in sequence, and the third branch is directly connected with the hot water tank 7 through the hot water pump 704; an air flow valve 11 is arranged on a pipeline between the circulating fan 11 and an air outlet 505 of the moisture drying chamber, a U pipeline 12 is arranged on a pipeline between the circulating fan 11 and the air flow valve 10, a U pipeline outlet 121 and a U pipeline inlet 122 are arranged on the U pipeline 12, the U pipeline outlet 121 and the U pipeline inlet 122 are respectively connected with a pipeline between the circulating fan 11 and the air flow valve 10, the U pipeline outlet 121 is close to the circulating fan, a U pipeline valve 123 is respectively arranged at the U pipeline outlet and the U pipeline inlet, and a disc-shaped pipeline 9 between a slow heat water pool pump 703 and a slow cool water pool pump 803 penetrates through the U pipeline 12; the cold air flow between the circulating fan 11 and the air outlet 505 of the moisture drying chamber has two flow paths, wherein one path is to open the air flow valve 10, and the cold air flow enters the circulating air flow channel 402 in the heat pump heat exchange box 4 through the circulating fan 11 by a pipeline between the circulating fan 11 and the air flow valve 10; the other path is that the U pipe outlet 121 and the U pipe inlet 122 are opened, the cold air flow firstly passes through the U pipe 12, then passes through the disk-shaped pipe 9 between the slow hot water pool pump 703 and the slow cold water pool pump 803, and finally enters the circulating air flow channel 402 through the circulating fan 11; the cold air flow is again introduced into the heat pump heat exchange tank 4 through an air outlet door 403 provided in the circulating air flow passage 402.
Furthermore, the heat pump drying system is also provided with a washer water tank 16, a paint drying room 17, a cold water tank 14, an air conditioning room 15 and an electric part, and water in the hot water tank is respectively conveyed into the washer water tank 16 and the paint drying room 17 after the heat pump unit 13 provides heat; the evaporator 1 is internally provided with a branch path for heat transfer between cold water in the cold water tank 8 and refrigerant, the cold water tank 14 is used for containing tap water, cold water in the cold water tank 8 and the refrigerant to form chilled water after heat transfer, the air conditioning chamber 15 is internally provided with a fan disc 151 and a temperature regulator, the fan disc 151 is provided with three branches, one branch path is connected with the cold water tank 14, the second branch path is connected with the washer water tank 16, the other branch path is communicated with the cold water tank 8, the electric part comprises an electric valve for switching an operation mode, and the electric valve is respectively arranged on the hot water inlet and outlet side of the washer water tank 16, the inlet side of tap water in the cold water tank 14 and the chilled water inlet and outlet side.
The fan disc is an end product of a central air conditioner and consists of a heat exchanger, a water pipe, a filter, a fan, a water receiving disc, an exhaust valve, a bracket and the like, and the working principle of the fan disc is that air in a room or an outdoor where the fan disc is located is continuously recycled in a unit, so that the air is cooled or heated after passing through a cold water or hot water coil pipe so as to keep the temperature constant.
The invention is further illustrated in the following figures:
as shown in fig. 1-2: starting a heat pump unit 13 to provide heat for hot water, enabling hot water in a hot water tank to enter an evaporator 1 through a water inlet 101 of the evaporator to exchange heat with an evaporator refrigerant, reducing the temperature of the hot water to form cold water, enabling the cold water to exit from a water outlet 102 of the evaporator and be stored in a cold water tank 8, enabling the cold water in the cold water tank 8 to enter a slow cooling water tank through a cold water valve, directly conveying the cold water into the hot water tank through a hot water pump, enabling the hot water to be provided by the heat pump unit, enabling the cold water to be changed into hot water, and enabling the hot water to continuously enter the evaporator to exchange heat with the refrigerant for recycling; the refrigerant absorbs heat to be changed into low-pressure air flow which flows out from a refrigerant outlet 103, becomes high-pressure air flow through a compressor 2, then enters into a condenser 3 through an inlet 301 of the condenser to transfer heat to the air flow in a heat pump heat exchange box 4, the air flow in the heat pump heat exchange box 4 becomes hot air flow, the high-pressure air is condensed into high-pressure liquid which is discharged from an outlet 302 of the condenser 3, then becomes low-pressure liquid through a throttling device 6, and finally returns to the evaporator 1 through a refrigerant inlet 104 for recycling; the hot air flow in the heat pump heat exchange box 4 passes through a fan I401, an S-shaped channel is formed by an upper baffle plate and a lower baffle plate which are arranged at the top and the bottom in the inner cavity of the heat exchange box 400 in a staggered manner through an air flow baffle plate 404, hot air flows out of an air flow outlet 405 of the heat pump heat exchange box after passing through the air flow channel, enters the water drying chamber 5 through an air flow inlet 500 of a water drying chamber and a fan II 501 arranged at the air flow inlet 500, a heat preservation layer 504 is arranged in the water drying chamber, baffles 506 on two sides of the water drying chamber are close to the heat preservation layer 504 and are connected with the top of the water drying chamber 5, the temperature in the water drying chamber is adjusted to be 80-90 ℃ through a temperature regulator, the hot air flows are fully dried through all air inlets 503 of an air inlet belt 502, so that the water in the articles to be dried can be evaporated into water vapor, the hot air flows take away the water vapor to form cold air flows through baffle plate openings 507 arranged between the lower part of the baffles 506 and the bottom of the water drying chamber 5, then exits from the water drying chamber 5 through an air outlet 505, the cold air flows can enter a circulating air flow channel in the heat exchange box through two paths, the circulating air flow channels are opened, the circulating channels in the water channels are opened, the circulating channels in the circulating channels, and the circulating channels in the channels, and the circulating channels in the circulating channels, and the circulating channels are opened; finally, the cold air flow enters the heat pump heat exchange box through the air outlet door 403, and becomes a new air flow with the air flow in the heat pump heat exchange box, the new air flow exchanges heat with the high-pressure air flow of the condenser to become a new hot air flow, and the new hot air flow enters the moisture drying chamber to dry the articles, so that the heat of the cold air flow is utilized, and the air flow is recycled.
During the operation of the coating production line, if the temperature in the moisture drying chamber does not reach the requirement, a U pipeline is opened, an air flow valve is closed, a cold air flow U pipeline in the moisture drying chamber is opened, hot water in a hot water tank enters a slow hot water tank through the hot water valve, then enters a disc pipeline penetrating through the U pipeline through a slow hot water tank pump, hot water exchanges heat with the cold air flow in the disc pipeline, the cold air flow becomes hot air flow, the hot water enters a heat pump heat exchange box through a circulating fan and an air outlet door of a circulating air flow channel, the heat exchange is carried out on the air flow in the heat pump heat exchange box together with high-pressure air flow of a condenser to become hot air flow, the hot air flow enters the moisture drying chamber again, after the temperature in the moisture drying chamber rises, the articles are dried again, the hot water becomes cold water enters a slow cold water tank, and then is delivered into the hot water tank through a hot water pump, and finally heat cold water is provided by a heat pump unit to become hot water, and the temperature in the moisture drying chamber is ensured to reach the requirement; if the temperature in the moisture drying chamber is too high, cold water in the cold water tank enters a disc-shaped pipeline penetrating through the U pipeline through a cold water valve, a slow cold water tank and a slow cold water tank pump, heat is exchanged between the cold water and hot air in the disc-shaped pipeline, the hot air becomes cold air flow, the cold air flow enters a heat pump heat exchange box through a circulating fan and an air outlet door of a circulating air flow channel, the hot air flow in the heat pump heat exchange box is cooled, the cooled hot air flow enters a moisture drying chamber, the articles are dried when the temperature of the moisture drying chamber meets the requirement, the cold water becomes hot water, the hot water enters a slow hot water tank, and enters a hot water tank, and the heat pump unit provides heat for the hot water to be hot water and then enters an evaporator to exchange heat with a refrigerant, so that a moisture drying chamber with a certain temperature is provided for meeting the drying requirement of the articles; if the air flow in the heat pump heat exchange box and the moisture drying chamber is insufficient or the air flow is updated, air can be introduced into the moisture drying chamber through an air port at the upper part of the moisture drying chamber, and the air in the moisture drying chamber enters the heat pump heat exchange box through a baffle plate port, an air outlet, a circulating fan and an air outlet door of a circulating air flow channel.
The heat pump drying system is also provided with a cleaning machine water tank 16, a paint drying chamber 17, a cold water tank 14, an air conditioning chamber 15 and an electric part, wherein the electric part comprises an electric valve for switching an operation mode, and the electric valve is respectively arranged on a water inlet and outlet side of hot water in the cleaning machine water tank 16, a water inlet side of tap water in the cold water tank 14 and a water inlet and outlet side of chilled water; the water in the hot water tank is respectively conveyed into a water tank 16 of the cleaning machine and a paint drying room 17 for the requirement after the heat pump unit 13 supplies heat, so that the temperature in the paint moisture drying room reaches 80-90 ℃ of the process temperature required by the articles; a branch circuit for heat transfer between cold water in a cold water tank 8 and refrigerant is arranged in an evaporator 1, the branch circuit is opened in a season requiring air conditioning, the cold water is changed into chilled water through the evaporator and is conveyed into a cold water tank 14, then the chilled water is conveyed into a fan disc 151 arranged in an air conditioning chamber 15, the requirements of different positions of the air conditioning chamber for cold energy are realized by arranging coils with different areas in the fan disc, meanwhile, the air conditioning chamber is cooled to 5 ℃ by a position staff according to the comfort level perceived by the position staff through a temperature regulator for regulating and setting the wind speed and the temperature; when the temperature reaches the required temperature, the system stops working, and if the temperature is higher than the set temperature, the system automatically operates; the hot water that chilled water changed through the fan dish can be with hot water delivery to cleaning machine basin direct utilization when hot water reaches the washing demand, if the temperature can not reach the washing demand, can send hot water to in the cold water pond and get into the hot-water tank through slow cooling pond and provide heat by the heat pump set, hot water reaches the washing demand and carries the cleaning machine basin again, so the circulation can reach refrigerated purpose, can utilize heat make full use of again, one portion consumes electricity, dual effect. The heat pump drying system can meet the requirements of the whole machine cleaning, moisture drying and paint drying process temperature of the coating production line, can meet the requirement of constant temperature and the requirement of 2 hours of preheating, each subsystem has the requirements of normal operation of the heat pump drying system such as temperature adjustment, one-key starting and the like, the heat source of the heat pump drying system can use the waste heat of the engine test circulating water, the waste heat of the circulating water is recycled, the running cost is saved, and if the heat pump drying system does not work, the coating production line can still keep the working state through the electric heating system.
Claims (8)
1. The heat pump drying system for the coating production line is characterized by comprising an evaporator (1), a compressor (2), a condenser (3), a heat pump heat exchange box (4), a moisture drying chamber (5), a throttling device (6), a cold water tank (8), a hot water tank (7) and a heat pump unit (13) for providing heat for the hot water tank, wherein the evaporator (1) comprises two branch pipelines, one branch pipeline is provided with a water inlet (101) and a water outlet (102), and the other branch pipeline is provided with a refrigerant outlet (103) and a refrigerant inlet (104); the water inlet (101) of the evaporator is connected with the hot water tank (7), the water outlet (102) is connected with the cold water tank (8), the hot water tank (7) is communicated with the cold water tank (8) through a pipeline, a hot water valve (701) and a cold water valve (801) are respectively arranged at two ends of the pipeline, the condenser (3) comprises an inlet (301), an outlet (302) and a bent pipeline (303), the compressor (2) is arranged between the inlet (301) of the condenser and the refrigerant outlet (103) of the evaporator through the pipeline, and the outlet (302) of the condenser is communicated with the refrigerant inlet (104) of the evaporator through a throttling device (6); the heat pump heat exchange box (4) comprises a heat exchange box body (400), a fan I (401), a circulating air flow channel (402), an air flow baffle (404) and an air flow outlet (405), wherein the condenser (3) and the fan I (401) are arranged in the heat pump heat exchange box (4), the fan I (401) is arranged outside the condenser (3) corresponding to the bent pipeline, the circulating air flow channel (402) is arranged at an air outlet of the fan I (401), the air flow baffle (404) is arranged on one side, far away from the fan I (401), of the circulating air flow channel (402), the air flow baffle (404) comprises an upper baffle and a lower baffle which are arranged at the top and the bottom in the inner cavity of the heat exchange box body (400) in a staggered manner, and an S-shaped channel for air flow to pass through is formed by the upper baffle and the lower baffle; the water drying chamber (5) comprises a heat preservation layer (504), an air inlet (500), a fan II (501), a wind gap belt (502), a baffle plate (506) and a water drying chamber door, wherein the water drying chamber door is arranged on the front of the water drying chamber, the heat preservation layer (504) is arranged on the inner layer of the water drying chamber, the baffle plates (506) are arranged on two sides of the water drying chamber, the baffle plates (506) are close to the heat preservation layer (504) and are connected with the top of the water drying chamber (5), a baffle plate opening (507) is arranged between the lower part of the baffle plates (506) and the bottom of the water drying chamber (5), the air inlet (500) is arranged at the top of the water drying chamber (5), the fan II (501) is arranged at the air inlet (500), the wind gap belt (502) is arranged at the lower end of the fan II (501), a plurality of wind gaps (503) are formed in the wind gap belt (502), two ends of the wind gap belt (502) are respectively connected with the upper parts of the baffle plates (506), and the lower part of the water drying chamber (5) is also provided with a wind outlet (505); the air flow outlet (405) of the heat pump heat exchange box is connected with the air flow inlet (500) of the moisture drying chamber, a plurality of air outlet doors (403) are arranged on one side, close to the fan I, of the circulating air flow channel (402), and the lower end of the circulating air flow channel (402) is connected with the air outlet (505) of the moisture drying chamber through the circulating fan (11);
The distance between the air outlet (505) and the bottom of the moisture drying chamber (5) is higher than the distance between the baffle opening (507) and the bottom of the moisture drying chamber (5);
the heat pump drying system further comprises a slow hot water tank (702), a slow hot water tank pump (703), a hot water pump (704), a slow cold water tank pump (803) and a slow cold water tank (802), wherein an outlet of the slow cold water tank (802) is provided with three branches, one branch is connected with the cold water tank (8) through a cold water valve (801), the second branch is sequentially connected with the hot water tank (7) through the slow cold water tank pump (803), a disc-shaped pipeline (9), the slow hot water tank pump (703), the slow hot water tank (702) and a hot water valve (701), and the third branch is directly connected with the hot water tank (7) through the hot water pump (704); the utility model provides a circulating fan (11) and drying chamber's air outlet (505) on be provided with air current valve (10) on the pipeline between air current valve (10), be equipped with U pipeline (12) on the pipeline between circulating fan (11) and air current valve (10), be provided with U pipeline outlet (121) on U pipeline (12), U pipeline import (122), U pipeline outlet (121), U pipeline import (122) link to each other with the pipeline between circulating fan (11) and air current valve (10) respectively, U pipeline outlet (121) are close to circulating fan, set up U pipeline valve (123) on the U pipeline respectively in U pipeline outlet department and U pipeline import department, the disk pipeline (9) between slow hot water pond pump (703) and slow cold water pond pump (803) run through in U pipeline (12).
2. A heat pump drying system for a coating line according to claim 1, wherein the upper part of the moisture drying chamber (5) is further provided with an air port (508).
3. The heat pump drying system for the coating production line according to claim 1, wherein the heat pump drying system is further provided with a washer water tank (16), a paint drying chamber (17), a cold water tank (14), an air conditioning chamber (15) and an electric part, and water in the hot water tank is respectively conveyed into the washer water tank (16) and the paint drying chamber (17) after heat is provided by the heat pump unit (13); the evaporator (1) is internally provided with a branch circuit for heat transfer between cold water in the cold water tank (8) and refrigerant, the cold water tank (14) is used for containing tap water and cold water which is changed into chilled water after heat transfer between the cold water in the cold water tank (8) and refrigerant, a fan disc (151) and a temperature regulator are arranged in the air conditioning chamber (15), the fan disc (151) is provided with three branch circuits, one branch circuit is connected with the cold water tank (14), the second branch circuit is connected with the water tank (16) of the cleaning machine, the other branch circuit is communicated with the cold water tank (8), the electric part comprises an electric valve for switching operation modes, and the electric valve is respectively arranged on the water inlet and outlet side of the hot water in the water tank (16), the water inlet side of the tap water in the cold water tank (14) and the chilled water inlet and outlet side of the chilled water.
4. A control method of a heat pump drying system for a coating line according to claim 1, characterized in that the control method comprises the steps of:
starting a heat pump unit (13) to provide heat for hot water, enabling the hot water to enter a branch pipeline of the evaporator (1) through a water inlet (101) of the evaporator to exchange heat with a refrigerant of the other branch pipeline of the evaporator, reducing the temperature of the hot water into cold water, and enabling the cold water to exit from a water outlet (102) of the evaporator and be stored in a cold water tank (8); the refrigerant absorbs heat to be changed into low-pressure air flow which flows out from a refrigerant outlet (103) of the evaporator and then becomes high-pressure air flow through a compressor (2), the high-pressure air flow enters an inlet (301) of a condenser in a heat pump heat exchange box (4) and enters the condenser (3) to transfer heat to the air flow in the heat pump heat exchange box (4), the air flow in the heat pump heat exchange box (4) becomes hot air flow, the high-pressure air is condensed into high-pressure liquid which is discharged from an outlet (302) of the condenser (3), then becomes low-pressure liquid through a throttling device (6), and finally returns to the evaporator (1) through a refrigerant inlet (104) of the evaporator; the hot air flow in the heat pump heat exchange box (4) passes through a fan I (401), an S-shaped channel formed by an upper baffle plate and a lower baffle plate which are arranged at the top and the bottom in the inner cavity of the heat exchange box body (400) in a staggered way is passed through an air flow baffle plate (404), then the hot air flows out of an air flow outlet (405) of the heat pump heat exchange box, then enters a moisture drying chamber (5) through an air flow inlet (500) of the moisture drying chamber and a fan II (501) arranged at the air flow inlet (500), an insulating layer (504) is arranged in the moisture drying chamber, baffles (506) at two sides of the moisture drying chamber are close to the insulating layer (504) and are connected with the top of the moisture drying chamber (5), the temperature in the moisture drying chamber (5) is controlled through a temperature controller, the hot air flow passes through an air port belt (502) connected with the upper part of the baffles (506), and then the articles to be dried which enter the moisture drying chamber from the moisture drying chamber door are dried through air port belts (503), so that the moisture in the articles to be dried are evaporated into water vapor, the hot air flow is carried away to form an air flow, the air cooling flow passes through the lower part of the baffles (506) and the air flow channel (5) and then passes through the air outlet (11) arranged in the heat pump heat exchange chamber (5), the air outlet door (403) arranged on one side, close to the fan I, of the circulating air flow channel (402) enters the heat pump heat exchange box (4) to form new air flow in the heat pump heat exchange box, the new air flow in the heat pump heat exchange box exchanges heat with high-pressure air flow of the condenser to form new hot air flow, the new hot air flow sequentially passes through the air flow baffle plate (404), the air flow outlet (405) and the air flow inlet (500) of the moisture drying chamber to enter the moisture drying chamber (5) to dry articles, and the air flow in the moisture drying chamber (5) and the air flow in the heat pump heat exchange box (4) are recycled.
5. The method according to claim 4, wherein the distance between the air outlet (505) and the bottom of the moisture drying chamber (5) is higher than the distance between the baffle opening (507) and the bottom of the moisture drying chamber (5).
6. The control method of a heat pump drying system for a coating line according to claim 4, wherein the upper part of the moisture drying chamber (5) is further provided with an air port (508).
7. The control method of the heat pump drying system for the coating production line according to claim 4, wherein the heat pump drying system further comprises a slow hot water tank (702), a slow hot water tank pump (703), a hot water pump (704), a slow cold water tank pump (803) and a slow cold water tank (802), an outlet of the slow cold water tank (802) is provided with three branches, one branch is connected with the cold water tank (8) through a cold water valve (801), the second branch is sequentially connected with the hot water tank (7) through the slow cold water tank pump (803), a disc-shaped pipeline (9), slow hot water Chi Beng (703), the slow hot water tank (702) and a hot water valve (701), and the third branch is directly connected with the hot water tank (7) through the hot water pump (704); an air flow valve (10) is arranged on a pipeline between the circulating fan (11) and an air outlet (505) of the drying chamber, a U pipeline (12) is arranged on a pipeline between the circulating fan (11) and the air flow valve (10), a U pipeline outlet (121) and a U pipeline inlet (122) are arranged on the U pipeline (12), the U pipeline outlet (121) and the U pipeline inlet (122) are respectively connected with a pipeline between the circulating fan (11) and the air flow valve (10), the U pipeline outlet (121) is close to the circulating fan, a U pipeline valve (123) is respectively arranged on the U pipeline at the U pipeline outlet and the U pipeline inlet, and a disc-shaped pipeline (9) between a slow hot water pool pump (703) and a slow cold water pool pump (803) penetrates through the U pipeline (12); the cold air flow between the circulating fan (11) and the air outlet (505) of the drying chamber has two flow paths, wherein one path is to open the air flow valve (10), and the cold air flow enters the circulating air flow channel (402) in the heat pump heat exchange box (4) through the circulating fan (11) by the pipeline between the circulating fan (11) and the air flow valve (10); the other path is that a U pipeline outlet (121) and a U pipeline inlet (122) are opened, cold air flow firstly passes through a U pipeline (12), then passes through a disc-shaped pipeline (9) between a slow hot water pool pump (703) and a slow cold water pool pump (803), and finally enters a circulating air flow channel (402) through a circulating fan (11); the cold air flow enters the heat pump heat exchange box (4) through an air outlet door (403) arranged on the circulating air flow channel (402).
8. The control method of a heat pump drying system for a coating production line according to claim 7, wherein the heat pump drying system is further provided with a washer water tank (16), a paint drying chamber (17), a cold water tank (14), an air conditioning chamber (15) and an electric part, and water in the hot water tank is respectively conveyed into the washer water tank (16) and the paint drying chamber (17) after heat is provided by the heat pump unit (13); the evaporator (1) is internally provided with a branch circuit for heat transfer between cold water in the cold water tank (8) and refrigerant, the cold water tank (14) is used for containing tap water and cold water which is changed into chilled water after heat transfer between the cold water in the cold water tank (8) and refrigerant, the air conditioning chamber (15) is internally provided with a fan disc (151) and a temperature regulator, the fan disc (151) is provided with three branch circuits, one branch circuit is connected with the cold water tank (14), the second branch circuit is connected with the water tank (16) of the cleaning machine, the other branch circuit is communicated with the cold water tank (8), the electric part comprises an electric valve for switching an operation mode, and the electric valve is respectively arranged on the water inlet and outlet side of the hot water in the water tank (16), the water inlet side of the tap water in the cold water tank (14) and the chilled water inlet and outlet side of the chilled water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168497.3A CN106766853B (en) | 2016-12-16 | 2016-12-16 | Heat pump drying system for coating production line and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168497.3A CN106766853B (en) | 2016-12-16 | 2016-12-16 | Heat pump drying system for coating production line and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106766853A CN106766853A (en) | 2017-05-31 |
| CN106766853B true CN106766853B (en) | 2023-04-28 |
Family
ID=58892167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611168497.3A Active CN106766853B (en) | 2016-12-16 | 2016-12-16 | Heat pump drying system for coating production line and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106766853B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999349A (en) * | 2017-11-25 | 2018-05-08 | 广东创智智能装备有限公司 | A kind of woodwork coating energy-saving type heat pump drying and cold air utilize system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338685A (en) * | 1995-06-12 | 1996-12-24 | Rinnai Corp | Drying device |
| JP2004116846A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Refrig Co Ltd | Drying system |
| CN202485379U (en) * | 2012-03-23 | 2012-10-10 | 陕西科林能源发展股份有限公司 | High-temperature heat pump drying system |
| CN103453759A (en) * | 2013-08-22 | 2013-12-18 | 南京翠波新能源发展有限公司 | Air source heat pump water circulation heat exchange drying system |
| CN203586439U (en) * | 2013-08-23 | 2014-05-07 | 皇甫新平 | Non-decreasing power vehicle-mounted refrigerating/heating device |
| CN203837461U (en) * | 2014-05-07 | 2014-09-17 | 东莞市德成新能源科技有限公司 | Heat pump dryer |
| CN206347855U (en) * | 2016-12-16 | 2017-07-21 | 东莞市风火轮热能科技有限公司 | A kind of heat pump drying system for paint line |
-
2016
- 2016-12-16 CN CN201611168497.3A patent/CN106766853B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338685A (en) * | 1995-06-12 | 1996-12-24 | Rinnai Corp | Drying device |
| JP2004116846A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Refrig Co Ltd | Drying system |
| CN202485379U (en) * | 2012-03-23 | 2012-10-10 | 陕西科林能源发展股份有限公司 | High-temperature heat pump drying system |
| CN103453759A (en) * | 2013-08-22 | 2013-12-18 | 南京翠波新能源发展有限公司 | Air source heat pump water circulation heat exchange drying system |
| CN203586439U (en) * | 2013-08-23 | 2014-05-07 | 皇甫新平 | Non-decreasing power vehicle-mounted refrigerating/heating device |
| CN203837461U (en) * | 2014-05-07 | 2014-09-17 | 东莞市德成新能源科技有限公司 | Heat pump dryer |
| CN206347855U (en) * | 2016-12-16 | 2017-07-21 | 东莞市风火轮热能科技有限公司 | A kind of heat pump drying system for paint line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106766853A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101520219A (en) | All-year cold supply chiller with natural cooling function | |
| CN202452608U (en) | Solution-humidity-regulating all-air unit with total-heat recovery device | |
| CN206347855U (en) | A kind of heat pump drying system for paint line | |
| CN110939995A (en) | Air conditioning system | |
| CN102721128B (en) | Hydropower air-conditioning system enabling reservoir water to serve as cold source or heat source | |
| CN102538087A (en) | Solution humidifying all-air unit with total-heat recovering device and solution humidifying method | |
| CN207702630U (en) | Combined evaporative refrigeration cooling water installation | |
| CN106766853B (en) | Heat pump drying system for coating production line and control method thereof | |
| CN103557670B (en) | Supermarket refrigerator condensation heat centralized processing system | |
| CN210569014U (en) | Anti-freezing fresh air handling unit capable of running safely in winter | |
| CN102147170B (en) | Water-cooled multi-connected unit triple-supply central air conditioning system | |
| CN113847661B (en) | Energy-saving system of air conditioner for alcoholization warehouse of cigarette factory | |
| CN207600014U (en) | The double cold source air conditioners of annual operation of air-cooled compression-type refrigeration and sweat cooling | |
| CN202993646U (en) | Heat-reacting recycling and reusing system of polyester device | |
| CN105333543A (en) | Multifunctional central air-conditioning system and running control method thereof | |
| CN204084851U (en) | A kind of box cold and hot with supplying energy-saving hot water unit | |
| CN110440355B (en) | Hydropower station temperature-regulating dehumidifying air-conditioning system and operation method thereof | |
| CN210740543U (en) | Energy-saving environment-friendly air conditioning device | |
| CN109911166B (en) | Seawater direct radiation cold supply heating type environment control system | |
| CN204526043U (en) | A kind of injection machine cooling system utilizing geothermal heat pump air-conditioner | |
| CN203586604U (en) | Three-in-one air conditioning and hot water supplying device | |
| CN203163134U (en) | Energy-saving water-cooling heat-pump air-conditioning device | |
| CN106765782B (en) | Wine cellar air conditioning system applying solar energy and geothermal energy jointly | |
| CN202338976U (en) | Heat-recycling air treatment device | |
| CN218993568U (en) | Direct expansion type cold and hot double-supply heat pump air conditioning system with heat recovery function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |