CN104764314A - Air source heat pump centralized heating distribution method and device for intensive curing barns - Google Patents
Air source heat pump centralized heating distribution method and device for intensive curing barns Download PDFInfo
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- CN104764314A CN104764314A CN201510148883.5A CN201510148883A CN104764314A CN 104764314 A CN104764314 A CN 104764314A CN 201510148883 A CN201510148883 A CN 201510148883A CN 104764314 A CN104764314 A CN 104764314A
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Abstract
The invention discloses an air source heat pump centralized heating distribution method and a device for intensive curing barns. The device comprises an air source heat pump mainframe, a set of centralized heating mechanism, a plurality of standard curing barns (9), and a main controller (11). The heat energy generated by the air source heat pump mainframe is distributed inside each standard curing barn through the centralized heating mechanism for exchanging heat of the air in the curing barn. The air source heat pump mainframe and the centralized heating mechanism are under the centralized control of the main controller (11). The problems of high equipment investment, low heat energy utilization ratio, easy leakage of refrigerant from refrigerant heat conduction pipe, difficult centralized management, and high production cost of the existing tobacco curing barns are solved. The heat demands of the plurality of standard curing barns can be satisfied synchronously by one air source heat pump mainframe, accordingly achieving the purpose of reducing the production cost, being convenient for the centralized control, increasing the heat energy utilization ratio, and ensuring the safe running of the system.
Description
Technical field
The present invention relates to air source heat pump technical field, what relate generally to is a kind of air source heat pump central heating distribution method for intensive baking room and equipment.Can extensive use to the oven dry of the crops such as article, especially tobacco leaf.
Background technology
Advanced baking equipment for preparatory treatment of tobacco is the baking process realizing science, the basis of improving quality of tobacco, reducing labour intensity and production cost.Compared with traditional baking chamber, intensive baking room takes forced ventilation hot air circulation, have that dress smoke which is large, saving of labor, save time, the feature such as cured tobacco leaf is superior in quality, thus all obtain certain applying in cured tobacco production at home and abroad.
Known intensive baking room firing equipment, primarily of heating furnace, fire tube (flue gas-air heat exchanger), chimney three part composition, is placed in the heating clamber adjacent with cigarette-filling house, and the air from cigarette-filling house is sent in cigarette-filling house by circulating fan after fire tube heating.The heat loss caused due to this mode of heating is larger, and therefore, the available energy dissipation utilization rate of this intensive baking room heating system is lower, only accounts for 20% ~ 35% of furnace fuel caloric value.And the fuel adopted mostly is coal, not only can cause serious pollution to surrounding environment, also can cause the crisis of energy resources.Under the dual-pressure of energy crisis and environmental pollution, the regenerative resource developing high-efficiency cleaning becomes one of energy-conservation developing direction of barn gradually.
Air source heat pump is as a kind of high-efficient energy-saving environment friendly thermal protection water system, and its application is day by day universal.It adopts high temperature refrigerant, by being taken out by the heat in air or in water at low temperature, together with the heat energy that converting electric energy used itself becomes, delivering to together in hot environment and going application.Its wind pushing temperature can meet the requirement of tobacco flue-curing to heat source temperature completely.In tobacco flue-curing season, because environment temperature is higher, the coefficient of heat supply of air source heat pump is higher, and energy-saving benefit is more obvious, and therefore adopting air source heat pump to carry out tobacco flue-curing is one of effective way reducing intensive baking room energy consumption.At present, the application mode of the hyperthermia drying source pump that market is developed in tobacco leaf drying system all adopts air source heat pump host matching standard tobacco flue-curing house, so, when will carry out tobacco flue-curing to the intensive baking room be made up of ten standard tobacco flue-curing houses, ten air source heat pump main frames will be equipped with simultaneously, be unfavorable for centralized Control, also define the high cost investment of tobacco flue-curing undoubtedly, greatly reduce the macroeconomic of heat pump baking system, and heat utilization rate is lower.In addition, the refrigerating medium that this kind of net for air-source heat pump units adopts is cold-producing medium, is connected between air source heat pump machine with tobacco flue-curing house inner radiator by refrigerant heat pipe, and in refrigerant heat pipe, stream is cold-producing medium, therefore there is higher refrigrant leakage risk, security of system is poor.
Summary of the invention
The object of the invention is the deficiency for above-mentioned air source heat pump drying unit, propose a kind of air source heat pump central heating distribution method for intensive baking room and equipment.Solve that the equipment investment that the drying corps room such as existing tobacco leaf exists is large, heat utilization rate is low, the easy leakage of refrigerant of refrigerant heat pipe, should not manage concentratedly, problem that production cost is high, use an air source heat pump main frame just can meet the heat demand of multiple standard barn simultaneously, reach the object reducing production cost, be convenient to centralized Control, improve heat utilization rate, guarantee system safety operation.
The present invention realizes the above-mentioned technical scheme taked for the air source heat pump central heating distribution method object of intensive baking room: it comprises an air source heat pump main frame, a set of central heating mechanism, multiple standard barn and master controller, the heat energy that described air source heat pump main frame produces is assigned in each standard barn by central heating mechanism and carries out heat exchange to the air in it, and described air source heat pump main frame and central heating mechanism are by master controller centralized Control.
The compressor of air source heat pump main frame of the present invention is parallel connection compressor.
The present invention realizes the above-mentioned technical scheme taked for the air source heat pump central heating distributing equipment object of intensive baking room: it is primarily of parallel connection compressor, wind-cooled evaporator, axial flow blower, the air source heat pump main frame of expansion valve and water-cooled condenser composition and multiple standard barn, primarily of hot-water circulating pump, heat collection water tank, the central heating mechanism of hot water supply-water pump and radiator composition and master controller, the heat collection water tank of described central heating mechanism is connected to entering of the water-cooled condenser of air source heat pump main frame, total confession of delivery port and each standard barn, between return pipe, and connecting line between water-cooled condenser water inlet and heat collection water tank recirculated water delivery port is connected with hot-water circulating pump, connecting line between described heat collection water tank hot water feed water inlet and the total feed pipe of each standard barn is connected with hot water supply-water pump, in each standard barn, radiator is installed, the inlet end of each radiator is connected with total feed pipe of each standard barn respectively, water outlet end is connected with total return pipe of each standard barn respectively, described parallel connection compressor, axial flow blower, hot-water circulating pump and hot water supply-water pump are controlled by master controller.
Parallel connection compressor of the present invention is made up of two or the parallel connection of multiple stage single compressor.
The heat output of air source heat pump main frame of the present invention, namely the water side of water-cooled condenser is all connected by thermal conductive water pipe with all pipelines between each standard barn.
Standard barn of the present invention forms one group of intensive baking room by multiple standard barn.
The present invention strengthens the generation of heat energy by the number of compressors increasing air source heat pump main frame, and the heat that air source heat pump main frame produces first is stored by heat collection water tank with the form of hot water, again by hot water being squeezed into the total feed pipe of intensive baking room after the boosting of hot water supply-water pump, being then evenly distributed in the radiator in each standard barn and then to the air in barn and heating to reach the object of drying the crops such as tobacco leaf.
Because an air source heat pump main frame adopts multiple compressors, master controller can realize multilevel energy according to barn load variations by the compressor starting varying number and regulate, realize the heat demand that an air source heat pump main frame and a set of central heating mechanism just can meet multiple standard barn, and heat can be reached accurately control, the utilization rate of heat energy is maximized, avoids the waste of heat energy.In addition, equipment is only containing an air source heat pump main frame and a set of central heating mechanism, be convenient to centralized management and concentrate run, effectively can shorten the overall time of drying materials, thus substantially increase production efficiency, meanwhile, be convenient to the centralized management of heat energy, significantly reduce equipment cost and human cost.In addition air source heat pump main frame possesses multilevel energy regulatory function, also possess a set of central heating mechanism simultaneously, and adopt master controller to carry out centralized Control, automaticity is high, energy adjustment reaction can be made fast according to the actual heat demand of barn, thus effectively improve drying materials quality.
Because the heat output (i.e. water-cooled condenser water side) of air source heat pump main frame is all connected by thermal conductive water pipe with all pipelines between barn inner radiator, and the interior stream of thermal conductive water pipe is refrigerating medium water, the pressure of refrigerating medium water is general all at below 6bar, risk of leakage is lower, certainly also leakage problem can be there is, leak even if exist, because have hot water storage tank in system, hot water storage tank also possesses water supplement function except possessing water storage function, can ensure in thermal conductive water pipe, to be full of water all the time and influential system does not normally work, in addition water leaks atmospheric environment is also do not pollute, and what walk in refrigerant heat pipe is cold-producing medium, pressure can up to more than 26bar, risk of leakage is high, leaks once exist, and the cold-producing medium total amount in heat pump main frame will sharp-decay and cause main frame cisco unity malfunction, in addition cold-producing medium belongs to chemical substance, once leakage can cause the environmental problem such as greenhouse effects, ozone hole, human body, once contact also can cause the frostbite of human organ, endangers larger, and cold-producing medium costly, leak and will cause certain economic loss.Therefore, the invention solves the refrigrant leakage problem of all heat conduction pipelines that heat pump main frame is connected with barn inner radiator, ensure that system safety operation.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
In figure: 1, parallel connection compressor, 2, wind-cooled evaporator, 3, axial flow blower, 4, expansion valve, 5, water-cooled condenser, 6, hot-water circulating pump, 7, heat collection water tank, 8, hot water supply-water pump, 9, standard barn, 10, radiator, 11, master controller.
Detailed description of the invention
By reference to the accompanying drawings, embodiments of the invention are provided as follows.But the present invention does not limit to following examples, the article of baking comprise any article, especially to the baking of the crops such as tobacco leaf.
As shown in Figure 1: a kind of air source heat pump central heating distribution method for intensive baking room described in the present embodiment, the heat energy that air source heat pump main frame produces is by master controller 11 centralized Control, be assigned in each standard barn by central heating mechanism and heat exchange is carried out to the air in barn, to reach the object of drying tobacco leaf.The refrigerating medium that described air source heat pump main frame adopts is water, and the connecting line between its with multiple standard barn is connected by thermal conductive water pipe, solves refrigrant leakage problem, ensure that the safe operation of system.
The equipment that the present embodiment realizes the above-mentioned air source heat pump central heating distribution method for intensive baking room comprises an air source heat pump main frame, a set of central heating mechanism, multiple standard barn 9 and master controller 11.Described air source heat pump main frame is known products, comprise parallel connection compressor 1, wind-cooled evaporator 2, axial flow blower 3, expansion valve 4, water-cooled condenser 5, (selection of a compressor number and number of units decides according to the size and number of barn) that described parallel connection compressor 1 is formed in parallel by two or multiple stage single compressor.Total exhaust outlet of parallel connection compressor 1 is connected with the refrigerant import of water-cooled condenser 5, the refrigerant exit of water-cooled condenser 5 is used for reducing pressure by regulating flow, adjusting refrigerant flow rate with expansion valve 4() refrigerant import be connected, the refrigerant exit of expansion valve 4 is connected with the refrigerant import of wind-cooled evaporator 2, the refrigerant exit of wind-cooled evaporator 2 is connected with total air entry of parallel connection compressor 1, the air inlet port part of described wind-cooled evaporator 2 is provided with axial flow blower 3, and effect is that auxiliary wind-cooled evaporator 2 absorbs a large amount of air energy from surrounding environment.Described central heating mechanism comprises hot-water circulating pump 6, heat collection water tank 7, hot water supply-water pump 8 and radiator 10, be connected to by thermal conductive water pipe for the heat collection water tank 7 of stored hot water between total confession of the entery and delivery port of the water-cooled condenser 5 of air source heat pump main frame and each standard barn 9, return pipe, heat collection water tank 7 is common stainless steel attemperater.Connecting line between described water-cooled condenser 5 water inlet and heat collection water tank 7 recirculated water delivery port is connected with hot-water circulating pump 6, the connecting line between described heat collection water tank 7 hot water feed water inlet and the total feed pipe of each standard barn 9 is connected with hot water supply-water pump 8.The heat output of described air source heat pump main frame, namely between water-cooled condenser 5 water side with each standard barn 9, all pipelines are all connected by thermal conductive water pipe, guarantee the safe operation of system.In each standard barn 9, radiator 10 is all installed, the inlet end of each radiator 10 is connected with total feed pipe of each standard barn 9 respectively, water outlet end is connected with total return pipe of each standard barn 9 respectively.Each described standard barn 9 is concentrated setting, convenient centralized management.Generally form one group of intensive baking room by multiple standard barn.What master controller 11 adopted is PLC300 intelligent controller, mainly controls parallel connection compressor 1, axial flow blower 3, hot-water circulating pump 6 and hot water supply-water pump 8.During firm start, hot water supply-water pump 8 is in closed condition, master controller 11 opens hot-water circulating pump 6 and heat pump main frame in succession, when the hot water temperature in hot water storage tank reaches heat supply temperature needed for barn, master controller 11 closes heat pump main frame and hot-water circulating pump 6 in succession, open hot water supply-water pump 8 simultaneously, start to each barn centralizedly supply hot water, after circulation after a while, hot water temperature in hot water storage tank can reduce, when hot water temperature is reduced to default value, master controller 11 just restarts hot-water circulating pump 6 and heat pump main frame continues to heat the hot water in hot water storage tank, meanwhile, as long as there is the barn needing heat supply to exist, hot water supply-water pump 8 is just in opening always, hot water supply-water pump 8 is only just in closed condition at the end of first start and baking task are all.What the control mode that master controller 11 adopts and control circuit adopted is known technology, does not repeat them here.
During use, the heat that air source heat pump main frame produces first is stored by heat collection water tank 7 with the form of hot water, after being boosted by hot water supply-water pump 8 again, hot water is squeezed into the total feed pipe of intensive baking room, then be evenly distributed in the radiator 10 in each standard barn 9 and then to the air in barn and heat to reach the object of drying tobacco leaf, cooling water after heat exchange enters as stocking system recirculated water in heat collection water tank 7, then enters the use of water-cooled condenser 5 Inner eycle.
Claims (6)
1. the air source heat pump central heating distribution method for intensive baking room, comprise an air source heat pump main frame and multiple standard barn (9), it is characterized in that: also comprise a set of central heating mechanism and master controller (11), the heat energy that described air source heat pump main frame produces is assigned in each standard barn by central heating mechanism and carries out heat exchange to the air in it, and described air source heat pump main frame and central heating mechanism are by master controller (11) centralized Control.
2. the air source heat pump central heating distribution method for intensive baking room according to claim 1, is characterized in that: the compressor of described air source heat pump main frame is parallel connection compressor (1).
3. one kind realizes the equipment of the air source heat pump central heating distribution method for intensive baking room according to claim 1, comprise primarily of parallel connection compressor (1), wind-cooled evaporator (2), axial flow blower (3), the air source heat pump main frame that expansion valve (4) and water-cooled condenser (5) form and multiple standard barn (9), it is characterized in that: also comprise primarily of hot-water circulating pump (6), heat collection water tank (7), the central heating mechanism that hot water supply-water pump (8) and radiator (10) form and master controller (11), the heat collection water tank of described central heating mechanism is connected to entering of the water-cooled condenser of air source heat pump main frame, total confession of delivery port and each standard barn, between return pipe, and connecting line between water-cooled condenser water inlet and heat collection water tank recirculated water delivery port is connected with hot-water circulating pump, connecting line between described heat collection water tank hot water feed water inlet and the total feed pipe of each standard barn is connected with hot water supply-water pump, in each standard barn, radiator is installed, the inlet end of each radiator is connected with total feed pipe of each standard barn respectively, water outlet end is connected with total return pipe of each standard barn respectively, described parallel connection compressor, axial flow blower, hot-water circulating pump and hot water supply-water pump are controlled by master controller.
4. the equipment of the air source heat pump central heating distribution method for intensive baking room according to claim 3, is characterized in that: described parallel connection compressor (1) is made up of two or the parallel connection of multiple stage single compressor.
5. the equipment of the air source heat pump central heating distribution method for intensive baking room according to claim 3, it is characterized in that: the heat output of described air source heat pump main frame, namely the water side of water-cooled condenser (5) is all connected by thermal conductive water pipe with all pipelines between each standard barn (9).
6. the equipment of the air source heat pump central heating distribution method for intensive baking room according to claim 3, is characterized in that: described standard barn (9) forms one group of intensive baking room by multiple standard barn.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510148883.5A CN104764314A (en) | 2015-04-01 | 2015-04-01 | Air source heat pump centralized heating distribution method and device for intensive curing barns |
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| CN201510148883.5A CN104764314A (en) | 2015-04-01 | 2015-04-01 | Air source heat pump centralized heating distribution method and device for intensive curing barns |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534482A (en) * | 2018-05-07 | 2018-09-14 | 江西理工大学 | One grows tobacco radiative oven dry dehumidification system |
| CN108800828A (en) * | 2018-03-27 | 2018-11-13 | 广东省现代农业装备研究所 | A kind of rice drying device and its implementation |
| CN109556291A (en) * | 2018-12-21 | 2019-04-02 | 珠海格力电器股份有限公司 | Temperature adjusting device and water heater |
| CN111365952A (en) * | 2020-01-21 | 2020-07-03 | 上海伯涵热能科技有限公司 | Central heat pump set and baking room system of distributing type fan coil combination |
| CN114111319A (en) * | 2021-11-15 | 2022-03-01 | 珠海格力电器股份有限公司 | Centralized type baking machine group and control method thereof |
-
2015
- 2015-04-01 CN CN201510148883.5A patent/CN104764314A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800828A (en) * | 2018-03-27 | 2018-11-13 | 广东省现代农业装备研究所 | A kind of rice drying device and its implementation |
| CN108534482A (en) * | 2018-05-07 | 2018-09-14 | 江西理工大学 | One grows tobacco radiative oven dry dehumidification system |
| CN109556291A (en) * | 2018-12-21 | 2019-04-02 | 珠海格力电器股份有限公司 | Temperature adjusting device and water heater |
| CN111365952A (en) * | 2020-01-21 | 2020-07-03 | 上海伯涵热能科技有限公司 | Central heat pump set and baking room system of distributing type fan coil combination |
| CN114111319A (en) * | 2021-11-15 | 2022-03-01 | 珠海格力电器股份有限公司 | Centralized type baking machine group and control method thereof |
| CN114111319B (en) * | 2021-11-15 | 2022-12-16 | 珠海格力电器股份有限公司 | Centralized type baking machine group and control method thereof |
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Application publication date: 20150708 |