CN210772877U - Industrial heat pump drying device - Google Patents
Industrial heat pump drying device Download PDFInfo
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- CN210772877U CN210772877U CN201921586432.XU CN201921586432U CN210772877U CN 210772877 U CN210772877 U CN 210772877U CN 201921586432 U CN201921586432 U CN 201921586432U CN 210772877 U CN210772877 U CN 210772877U
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Abstract
The utility model relates to the field of machinary, especially, relate to an industry heat pump drying device. And a plurality of groups of heat pump devices and drying devices can be connected in parallel according to requirements. Its advantages are large heat pump system and high mechanical efficiency. The water is used as a heat transfer medium, the heat inertia is larger than that of an air source heat pump by directly utilizing a refrigerant, the temperature fluctuation is small, the cold storage device and the heat storage device are additionally arranged, the operation of the device can be stabilized, and particularly, the drying effect is prevented from being influenced by overlarge temperature fluctuation under the condition that a plurality of heat pump devices are connected in parallel or a plurality of drying devices are connected in parallel. The parallel structure of the industrial heat pump drying device can not only realize the full heat recovery inside a single drying device, but also realize the full heat recovery and heat scheduling among all the drying devices, and reduce the energy waste caused by heat extraction and dehumidification.
Description
Technical Field
The utility model relates to the field of machinary, especially, relate to an industry heat pump drying device.
Background
The drying is a process with large heat consumption, the common curing barn directly supplies heat by using coal, the coal consumption is high, the heat utilization rate is low, the standard coal with 1kg coal consumption of 1.5-2.5 kg is usually dried, and the environmental pollution is serious. In response to this problem, many air source heat pump based drying apparatuses have been developed in the market. At present, the heat pump dryer has become a main development trend due to low operation discharge, high heating efficiency and good economical efficiency. However, most of the air source heat pumps in the market are small air source heat pumps, and each drying chamber is independently provided with one air source heat pump, so that centralized management is not suitable. When the temperature is required to rise, the equipment is started, when the temperature is required to be preserved, the equipment is intermittently stopped, and when the temperature is required to be reduced, the ventilation, heat extraction and moisture removal are carried out, so that the heat utilization rate is low, the installed capacity and the initial investment are wasted, and the impact on a power grid is frequent due to the disordered starting and stopping. The small air source equipment has the risk of refrigerant leakage, and particularly, the leaked refrigerant is difficult to diffuse quickly under the relatively closed ventilation condition of the drying chamber, so that the potential safety hazard is great.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is that: in order to provide an industrial heat pump drying device with better effect, the specific purpose is to see a plurality of substantial technical effects of the specific implementation part.
In order to achieve the purpose, the utility model adopts the following technical proposal:
an industrial heat pump drying device is characterized by comprising a heat pump device, a heat storage device, a cold storage device, a cooling device and a drying chamber which are independent or connected in parallel;
the heat pump device comprises a compressor, a condenser, an expansion valve and an evaporator; the outlet of a compressor 9 in the heat pump device is connected with the refrigerant side inlet of a condenser 8, the refrigerant side outlet of the condenser 8 is connected with the inlet of an expansion valve 6, the outlet of the expansion valve 6 is connected with the refrigerant side inlet of an evaporator 7, the refrigerant side outlet of the evaporator 7 is connected with the inlet of the compressor 9, and a closed refrigerant cycle is formed by filling a refrigerant; the evaporator 7 and the condenser 8 are heat exchangers, heat exchange is formed between the refrigerant side of the condenser and the water side of the condenser, and heat exchange is formed between the refrigerant side of the evaporator and the water side of the evaporator;
the heat storage device comprises a constant temperature hot water tank and a primary cooling pump; the constant-temperature hot water tank is connected with a primary cooling pump, the primary cooling pump is connected with a condenser, and the condenser is connected with the constant-temperature hot water tank; the secondary cooling pump is connected with a heat dissipation surface cooler, and the heat dissipation surface cooler is connected with a constant temperature hot water tank; the constant temperature hot water tank is connected with the cooling tower through a cooling tower water pump 12;
the cold storage device comprises a constant-temperature cold water tank 4 and a primary refrigerating pump 5;
the constant-temperature cold water tank is connected with a primary refrigerating pump 5, the primary refrigerating pump 5 is connected with an evaporator 7, and the evaporator is connected with the constant-temperature cold water tank; the secondary refrigerating pump 3 is connected with a dehumidification surface air cooler; the dehumidification surface cooler is connected with the constant-temperature cold water tank;
the cooling device comprises a cooling tower 13 and a cooling tower water pump 12, wherein the cooling tower water pump is connected with the cooling tower through a pipeline.
The utility model has the further technical proposal that the constant temperature hot water tank comprises a first constant temperature hot water tank water outlet 11.1, the first constant temperature hot water tank water outlet 11.1 is connected with the water inlet of the primary cooling pump 10, the water outlet of the primary cooling pump 10 is connected with the water inlet of the condenser, and the water outlet of the condenser is connected with a first constant temperature hot water tank water inlet 11.2; the second water outlet 11.6 of the constant-temperature hot water tank is connected with the water inlet of the secondary cooling pump 2, the water outlet of the secondary cooling pump 2 is connected with the water inlet 1.15 of the heat dissipation surface cooler, and the water outlet 1.16 of the heat dissipation surface cooler is connected with the second water inlet 11.5 of the constant-temperature hot water tank. The third water outlet 11.3 of the constant-temperature hot water tank is connected with the water inlet of the cooling tower water pump 12, the water outlet of the cooling tower water pump 12 is connected with the water inlet of the cooling tower, and the water outlet of the cooling tower is connected with the third water inlet 11.4 of the constant-temperature hot water tank.
The utility model discloses a further technical scheme lies in, constant temperature cold water storage cistern contain constant temperature cold water storage cistern delivery port 4.1, constant temperature cold water storage cistern delivery port 4.1 links to each other with the water inlet of a cryopump 5, the delivery port of a cryopump 5 links to each other with the water inlet of evaporimeter 7, the delivery port of evaporimeter 7 links to each other with constant temperature cold water storage cistern water inlet 4.2. The second 4.4 of the water outlet of the constant-temperature cold water tank is connected with the water inlet of the secondary freezing pump 3, the water outlet of the secondary freezing pump 3 is connected with the water inlet 1.9 of the dehumidification surface air cooler, and the water outlet 1.10 of the dehumidification surface air cooler is connected with the second 4.3 of the water inlet of the constant-temperature cold water tank.
The further technical proposal of the utility model is that the drying chamber comprises a drying chamber main body 1.20, an air pressure safety valve 1.19 is arranged above the drying chamber main body 1.20, and the air pressure safety valve 1.19 is used for ensuring the air pressure in the drying chamber to be consistent with the atmospheric pressure; the right side of the drying chamber main body 1.20 comprises a drying chamber door 1.21; the upper position of the drying chamber main body 1.20 comprises an air duct 1.18, a heat-dissipation surface air cooler 1.14 and a heat-dissipation surface air cooler fan 1.17 are arranged on the left side of the air duct 1.18, the left side of the drying chamber main body comprises two partition plates which are a partition plate on the left side and a partition plate in the middle respectively, and the heat-dissipation surface air cooler 1.14 and the heat-dissipation surface air cooler fan 1.17 are arranged on the partition plate in the middle;
an air valve B1.2 and an air valve D1.4 are arranged below the heat dissipation surface cooler 1.14; the lower right side of the air valve D1.4 also comprises an air valve C1.3, and the air valve C1.3 is positioned on the partition plate in the middle;
an air valve A1.1 is installed on a partition plate on the left side, an air valve H1.13 is installed on the upper position of a space isolated by the partition plate on the left side, a dehumidification surface air cooler fan 1.12 is arranged below the air valve H1.13, a dehumidification surface air cooler 1.11 is installed on a horizontal partition plate below the dehumidification surface air cooler fan 1.12, and a water collecting tray 1.6 is arranged below the dehumidification surface air cooler 1.11; an air valve G1.8 is arranged on the horizontal partition plate, an air valve F1.7 is arranged on the lower left side of the air valve G1.8, and an air valve E1.5 is arranged on the lower right side of the air valve G1.8.
The utility model discloses a further technical scheme lies in, the compressor is any one of piston, vortex formula, screw or centrifugal.
The utility model discloses a further technical scheme lies in, condenser or evaporimeter are fin formula or shell and tube formula.
The utility model discloses a further technical scheme lies in, the expansion valve is physics expansion valve or electronic expansion valve.
Adopt above technical scheme the utility model discloses, for prior art have following beneficial effect: and a plurality of groups of heat pump devices and drying devices can be connected in parallel according to requirements. Its advantages are large heat pump system and high mechanical efficiency. The water is used as a heat transfer medium, the heat inertia is larger than that of an air source heat pump by directly utilizing a refrigerant, the temperature fluctuation is small, the cold storage device and the heat storage device are additionally arranged, the operation of the device can be stabilized, and particularly, the drying effect is prevented from being influenced by overlarge temperature fluctuation under the condition that a plurality of heat pump devices are connected in parallel or a plurality of drying devices are connected in parallel. The parallel structure of the industrial heat pump drying device can not only realize the full heat recovery inside a single drying device, but also realize the full heat recovery and heat scheduling among all the drying devices, and reduce the energy waste caused by heat extraction and dehumidification. The configuration of the constant-temperature hot water tank and the constant-temperature cold water tank is adopted, the parallel connection of a plurality of drying devices is well adapted, and the heat pump can still continuously and stably operate under the condition that the secondary freezing pump or the secondary cooling pump is closed. The drying device achieves full-closed drying, reduces the diffusion of volatile substances and dust, improves the quality of the dried substances, and reduces the influence of the dried substances on the surrounding environment.
Drawings
For further explanation of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings:
FIG. 1 is a schematic diagram of an architecture: the architecture of the present invention is exemplary;
FIG. 2 is a process schematic: the utility model discloses an example of a technological principle structure;
fig. 3 is a drying chamber: further explaining a structural example of the drying chamber;
fig. 4 is a constant temperature hot water tank: further explaining a structural example of the constant-temperature hot water tank;
fig. 5 is a constant temperature cold water tank: further explaining a structural example of the constant-temperature cold water tank;
wherein: 1. a drying chamber; 2. a secondary cooling pump; 3. a secondary refrigeration pump; 4. a constant temperature cold water tank; 5. a primary refrigeration pump; 6. an expansion valve; 7. an evaporator; 8. a condenser; 9. a compressor; 10. a primary cooling pump; 11. a constant temperature hot water tank; 12. a cooling tower water pump; 13. and (5) cooling the tower.
1.1 an air valve A; 1.2, an air valve B; 1.3, an air valve C; 1.4 air valve D; 1.5 air valve E; 1.6 water collecting tray; 1.7 air valve F; 1.8 air valve G; 1.9 a water inlet of a dehumidification surface air cooler; 1.10 dehumidifying the water outlet of the surface air cooler; 1.11 dehumidifying the surface air cooler; 1.12 dehumidification surface air cooler fan; 1.13 air valve H; 1.14. a heat-dissipating surface cooler; 1.15 heat dissipation surface cooler water inlet; 1.16 water outlet of heat dissipation surface air cooler; 1.17 heat dissipation surface air cooler fan; 1.18 air ducts; 1.19 air pressure relief valve; 1.20 drying chamber main body; 1.21 drying chamber door. 11.1, a first water outlet of the constant-temperature hot water tank; 11.2, a first water inlet of the constant-temperature hot water tank; 11.3, a third water outlet of the constant-temperature hot water tank; 11.4 a third water inlet of the constant-temperature hot water tank; 11.5 a second water inlet of the constant-temperature hot water tank; 11.6 a second water outlet of the constant-temperature hot water tank; 4.1, a first water outlet of the constant-temperature cold water tank; 4.2, a first water inlet of the constant-temperature cold water tank; 4.3, a water inlet II of the constant-temperature cold water tank; 4.4 and a second water outlet of the constant-temperature cold water tank.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features.
The first embodiment is as follows:
an industrial heat pump drying device is characterized by comprising a heat pump device, a heat storage device, a cold storage device, a cooling device and a drying chamber which are independent or connected in parallel;
the heat pump device comprises a compressor, a condenser, an expansion valve and an evaporator; the outlet of a compressor 9 in the heat pump device is connected with the refrigerant side inlet of a condenser 8, the refrigerant side outlet of the condenser 8 is connected with the inlet of an expansion valve 6, the outlet of the expansion valve 6 is connected with the refrigerant side inlet of an evaporator 7, the refrigerant side outlet of the evaporator 7 is connected with the inlet of the compressor 9, and a closed refrigerant cycle is formed by filling a refrigerant; the evaporator 7 and the condenser 8 are heat exchangers, heat exchange is formed between the refrigerant side of the condenser and the water side of the condenser, and heat exchange is formed between the refrigerant side of the evaporator and the water side of the evaporator;
the heat storage device comprises a constant temperature hot water tank 11 and a primary cooling pump 10; the constant-temperature hot water tank is connected with a primary cooling pump, the primary cooling pump is connected with a condenser 8, and the condenser is connected with the constant-temperature hot water tank; the secondary cooling pump 2 is connected with a heat dissipation surface air cooler which is connected with a constant temperature hot water tank; the constant temperature hot water tank is connected with the cooling tower through a cooling tower water pump 12;
the cold storage device comprises a constant-temperature cold water tank 4 and a primary refrigerating pump 5; the constant-temperature cold water tank is connected with a primary refrigerating pump 5, the primary refrigerating pump 5 is connected with an evaporator 7, and the evaporator is connected with the constant-temperature cold water tank; the secondary refrigerating pump 3 is connected with a dehumidification surface air cooler; the dehumidification surface cooler is connected with the constant-temperature cold water tank;
the cooling device comprises a cooling tower and a cooling tower water pump, and the cooling tower water pump is connected with the cooling tower through a pipeline. The technical scheme of the invention has the following substantial technical effects and the realization process: the combination of a large water source heat pump and a surface cooler is used for transferring heat from air in a drying room, other drying rooms connected in parallel or outdoor air to serve as a cold source and a heat source for drying or dehumidification, and a cooling tower is matched to prevent the situation that cooling water is possibly overheated. Cold and hot water are used as heat-conducting media to conduct cold and heat to a surface air cooler in the drying chamber, so that the purpose of controlling the temperature and humidity of the drying chamber is achieved. The drying chamber structure and the air duct structure which are more scientific are adopted, so that various drying functions are realized, and various use requirements of drying are met. The utility model discloses a framework of "water source heat pump multimachine is parallelly connected + many drying chambers are parallelly connected + heat-retaining device + storage cold charge" provides the solution of a whole set of stoving.
The advantages are that: the large-scale water source heat pump is used, and the mechanical efficiency is higher than that of the small-scale air source heat pump equipment which is commonly used at present. The water is used as a heat transfer medium, the heat inertia is larger than that of an air source heat pump by directly utilizing a refrigerant, the temperature fluctuation is small, the cold storage device and the heat storage device are additionally arranged, the operation of the device can be stabilized, and particularly, the drying effect is prevented from being influenced by overlarge temperature fluctuation under the condition that a plurality of heat pump devices are connected in parallel or a plurality of drying devices are connected in parallel. The parallel structure of the industrial heat pump drying device can not only realize the full heat recovery inside a single drying device, but also realize the full heat recovery and heat scheduling among all the drying devices, and reduce the energy waste caused by heat extraction and dehumidification. The configuration of the constant-temperature hot water tank and the constant-temperature cold water tank is adopted, the parallel connection of a plurality of drying devices is well adapted, and the heat pump can still continuously and stably operate under the condition that the secondary freezing pump or the secondary cooling pump is closed. The drying device achieves full-closed drying and is relatively isolated from the outside air, so that the diffusion of volatile substances and dust is reduced, the quality of the dried substances is improved, and the influence of the dried substances on the surrounding environment is reduced.
It should be noted that the solution of this section is at least an energy-saving and environment-friendly structure, which is an individual that can be sold independently, and the solutions of the lower sections are all parallel solutions or improved solutions.
Example two: as a further improved or feasible parallel scheme, the constant-temperature hot water tank comprises a first constant-temperature hot water tank water outlet 11.1, the first constant-temperature hot water tank water outlet 11.1 is connected with a water inlet of the primary cooling pump 10, a water outlet of the primary cooling pump 10 is connected with a water inlet of the condenser, and a water outlet of the condenser is connected with a first constant-temperature hot water tank water inlet 11.2; the second water outlet 11.6 of the constant-temperature hot water tank is connected with the water inlet of the secondary cooling pump 2, the water outlet of the secondary cooling pump 2 is connected with the water inlet 1.15 of the heat dissipation surface cooler, and the water outlet 1.16 of the heat dissipation surface cooler is connected with the second water inlet 11.5 of the constant-temperature hot water tank. The third water outlet 11.3 of the constant-temperature hot water tank is connected with the water inlet of the cooling tower water pump 12, the water outlet of the cooling tower water pump 12 is connected with the water inlet of the cooling tower, and the water outlet of the cooling tower is connected with the third water inlet 11.4 of the constant-temperature hot water tank. The technical scheme of the invention has the following substantial technical effects and the realization process: the embodiment provides a plurality of groups of cooling pumps, which are a specific implementation structure, and similar implementation structures are all within the protection scope of the patent.
The constant-temperature cold water tank comprises a first constant-temperature cold water tank water outlet 4.1, the first constant-temperature cold water tank water outlet 4.1 is connected with a water inlet of the primary refrigerating pump 5, a water outlet of the primary refrigerating pump 5 is connected with a water inlet of the evaporator 7, and a water outlet of the evaporator 7 is connected with a first constant-temperature cold water tank water inlet 4.2. The second 4.4 of the water outlet of the constant-temperature cold water tank is connected with the water inlet of the secondary freezing pump 3, the water outlet of the secondary freezing pump 3 is connected with the water inlet 1.9 of the dehumidification surface air cooler, and the water outlet 1.10 of the dehumidification surface air cooler is connected with the second 4.3 of the water inlet of the constant-temperature cold water tank. The technical scheme of the invention has the following substantial technical effects and the realization process: the scheme of this department provides multiunit cryopump, is a concrete implementation structure, and similar implementation structure all is in the protection of this patent.
The further technical proposal of the utility model is that the drying chamber comprises a drying chamber main body 1.20, an air pressure safety valve 1.19 is arranged above the drying chamber main body 1.20, and the air pressure safety valve 1.19 is used for ensuring the air pressure in the drying chamber to be consistent with the atmospheric pressure; the right side of the drying chamber main body 1.20 comprises a drying chamber door 1.21; the upper position of the drying chamber main body 1.20 comprises an air duct 1.18, a heat-dissipation surface air cooler 1.14 and a heat-dissipation surface air cooler fan 1.17 are arranged on the left side of the air duct 1.18, the left side of the drying chamber main body comprises two partition plates which are a partition plate on the left side and a partition plate in the middle respectively, and the heat-dissipation surface air cooler 1.14 and the heat-dissipation surface air cooler fan 1.17 are arranged on the partition plate in the middle;
an air valve B1.2 and an air valve D1.4 are arranged below the heat dissipation surface cooler 1.14; the lower right side of the air valve D1.4 also comprises an air valve C1.3, and the air valve C1.3 is positioned on the partition plate in the middle;
an air valve A1.1 is installed on a partition plate on the left side, an air valve H1.13 is installed on the upper position of a space isolated by the partition plate on the left side, a dehumidification surface air cooler fan 1.12 is arranged below the air valve H1.13, a dehumidification surface air cooler 1.11 is installed on a horizontal partition plate below the dehumidification surface air cooler fan 1.12, and a water collecting tray 1.6 is arranged below the dehumidification surface air cooler 1.11; an air valve G1.8 is arranged on the horizontal partition plate, an air valve F1.7 is arranged on the lower left side of the air valve G1.8, and an air valve E1.5 is arranged on the lower right side of the air valve G1.8.
The utility model discloses a further technical scheme lies in, the compressor is any one of piston, vortex formula, screw or centrifugal.
The utility model discloses a further technical scheme lies in, condenser or evaporimeter are fin formula or shell and tube formula.
The utility model discloses a further technical scheme lies in, the expansion valve is physics expansion valve or electronic expansion valve.
As shown in fig. 1, one or more heat pump devices are connected in parallel, the condenser is connected with the heat storage device in a unified manner, the evaporator is connected with the cold storage device in a unified manner, and the heat storage device is connected with the cooling device. The single or a plurality of drying devices are connected in parallel, the heat dissipation surface air coolers are uniformly connected with the heat storage device, and the dehumidification surface air coolers are uniformly connected with the cold storage device.
As shown in fig. 2, the heat pump apparatus is constructed like a typical water source heat pump in which an outlet of a compressor 9 is connected to an inlet of a condenser 8 on a refrigerant side, an outlet of the condenser on the refrigerant side is connected to an inlet of an expansion valve 6, an outlet of the expansion valve is connected to an inlet of an evaporator 7 on the refrigerant side, and an outlet of the evaporator on the refrigerant side is connected to an inlet of the compressor to be filled with a refrigerant, thereby forming a closed refrigerant cycle. The evaporator and the condenser are essentially heat exchangers, heat exchange is formed between the refrigerant side of the condenser and the water side of the condenser, and heat exchange is formed between the refrigerant side of the evaporator and the water side of the evaporator.
As shown in fig. 2 and 4, a first constant temperature hot water tank water outlet 11.1 in the industrial heat pump drying device is connected with a first cooling pump 10 water inlet, a first cooling pump water outlet is connected with a condenser 8 water inlet, and a condenser water outlet is connected with a first constant temperature hot water tank water inlet 11.2. The second water outlet 11.6 of the constant-temperature hot water tank is connected with the water inlet of the secondary cooling pump 2, the water outlet of the secondary cooling pump is connected with the corresponding water inlet 1.15 of the heat dissipation surface cooler, and the water outlet 1.16 of the heat dissipation surface cooler is connected with the second water inlet 11.5 of the constant-temperature hot water tank. And the third water outlet 11.3 of the constant-temperature hot water tank is connected with the water inlet of a cooling tower water pump, the water outlet of the cooling tower water pump is connected with the water inlet of a cooling tower, and the water outlet of the cooling tower is connected with the third water inlet 11.4 of the constant-temperature hot water tank.
As shown in fig. 2 and 5, the first outlet 4.1 of the constant temperature cold water tank is connected with the first inlet of the primary refrigerating pump 5, the second outlet of the primary refrigerating pump is connected with the first inlet of the evaporator 7, and the second outlet of the evaporator is connected with the first inlet 4.2 of the constant temperature cold water tank. The second water outlet 4.4 of the constant-temperature cold water tank is connected with the water inlet of the secondary refrigeration pump 3, the water outlet of the secondary refrigeration pump is connected with the water inlet 1.9 of the dehumidification surface air cooler, and the water outlet 1.10 of the dehumidification surface air cooler is connected with the second water inlet 4.3 of the constant-temperature cold water tank.
As shown in fig. 3, the drying chamber includes a drying chamber main body 1.20, which is composed of structural members, heat insulating materials, and an air-tight layer, and has the functions of firmness, durability, heat insulation and moisture insulation. The drying room comprises a heat dissipation surface air cooler 1.14, a heat dissipation surface air cooler fan 1.17, a dehumidification surface air cooler 1.11 and a dehumidification surface air cooler fan 1.12, and is used for regulating and controlling the temperature and humidity in the drying room. And the water collecting plate 1.6 is used for collecting and discharging condensed water in the dehumidification surface air cooler. The air duct 1.18 plays a role of uniformly distributing air, so that the uniform heating is realized, and the yield is ensured. Atmospheric pressure relief valve 1.19 for guarantee that the atmospheric pressure in the drying chamber is unanimous with atmospheric pressure, offset expend with heat and contract with cold to the influence of drying chamber air, avoid the deformation of drying chamber structure, guaranteed the heat insulating ability and the gas tightness of drying chamber simultaneously. And a drying chamber door 1.21 for goods to enter and exit. The numbers A-H are totally 8 air valves which are used for allocating the air flow direction of the drying chamber and realizing various drying functions.
Examples of applications in three commonly used drying processes are:
and (3) closed heating and humidity increasing working conditions:
the heat pump device, the primary cooling pump, the secondary cooling pump, the primary refrigerating pump and the secondary refrigerating pump are started, the air valve C, D, F, G, H is opened, the air valve A, B, E is closed, the dehumidifying surface air cooler fan is opened, and the heat-dissipating surface air cooler fan is opened. In the working condition, the dehumidification surface air cooler absorbs heat of outdoor air, chilled water is pumped into the water source heat pump through the primary refrigeration pump and the secondary refrigeration pump and is transferred to cooling water through the heat pump, and the cooling water is sent into the heat dissipation surface air cooler through the primary cooling pump and the secondary cooling pump and is dissipated into the drying chamber. Outdoor air is subjected to heat absorption through the air valve F, the air valve G and the dehumidification surface air cooler, and outdoor circulation through the fan of the dehumidification surface air cooler and the air valve H. The air in the drying room is circulated outdoors through the air valve C, the air valve D, the heat-dissipation surface cooler fan and the air duct.
And (3) sealing, insulating and dehumidifying working conditions:
the heat pump device, the primary cooling pump, the secondary cooling pump, the primary refrigerating pump and the secondary refrigerating pump are started, the air valve A, C, E, G is opened, the air valve B, D, F, H is closed, the fan of the dehumidification surface air cooler is closed, and the fan of the heat dissipation surface air cooler is opened. In the working condition, the dehumidification surface air cooler absorbs heat of indoor air for dehumidification, condensed water is collected by the water collecting tray and then discharged, chilled water is pumped into the water source heat pump by the primary refrigeration pump and the secondary refrigeration pump and is transferred to cooling water through the heat pump, and the cooling water is sent into the heat dissipation surface air cooler by the primary cooling pump and the secondary cooling pump to dissipate the heat into the drying chamber. The air is subjected to heat absorption and dehumidification through the air valve C, the air valve E, the air valve G and the dehumidification surface air cooler, the air valve A, the heat release of the heat dissipation surface air cooler, the heat dissipation surface air cooler fan and the air duct to perform indoor circulation.
And (3) sealing, cooling and dehumidifying working conditions:
the heat pump device, the primary cooling pump, the secondary cooling pump, the primary refrigerating pump and the cooling tower are started, the air valve A, C, E, G is opened, the air valve B, D, F, H is closed, the dehumidification surface air cooler fan is closed, and the heat dissipation surface air cooler fan is opened. In the working condition, the dehumidification surface air cooler absorbs heat of indoor air for dehumidification, condensed water is collected by the water collecting tray and then discharged, chilled water is pumped into the water source heat pump by the primary refrigeration pump and the secondary refrigeration pump and is transferred to cooling water through the heat pump, and the cooling water is sent into the cooling tower by the primary cooling pump and the cooling tower water pump to dissipate heat into outdoor air. The air is subjected to heat absorption and dehumidification through the air valve C, the air valve E, the air valve G and the dehumidification surface air cooler, the air valve A and the heat dissipation surface air cooler do not exchange heat, and the heat dissipation surface air cooler fan and the air duct are used for indoor circulation.
When a plurality of drying chambers are connected in parallel, the working conditions of the drying chambers adjust the opening and closing states of the heat pump device, the primary cooling pump, the secondary cooling pump, the primary refrigerating pump, the secondary refrigerating pump, the air valves A-H, the fan, the cooling tower and the like according to actual requirements, so that heat exchange among the drying chambers can be realized, and energy waste is reduced. The installed capacity is reduced, and the utilization rate of the startup is greatly improved.
The air ducts are distributed with a plurality of air ports, which play a role of uniformly distributing air, so that the air ducts are uniformly heated, and the yield is ensured. The air pressure safety valve is used for ensuring that the air pressure in the drying chamber is consistent with the atmospheric pressure, offsetting the influence of expansion with heat and contraction with cold on the air in the drying chamber and avoiding the deformation of the drying chamber structure. The drying room door is used for waiting for the business turn over of goods, plays thermal-insulated effect of heat preservation simultaneously. The air valves A-H have 8 air valves, which are used for allocating the air flow direction of the drying chamber and realizing various drying functions.
The compressor is of a piston type, a vortex type, a screw type or a centrifugal type; the condenser and the evaporator are fin type or shell-and-tube type; the expansion valve is a physical expansion valve or an electronic expansion valve. According to the system capacity and the process requirement, a plurality of pressure gauges, pressure difference switches, liquid observation mirrors, an economizer, a heat regenerator, a liquid storage device, a drying filter, an oil separator and heat pump accessories of control elements can be arranged;
the parallel heat pumps can run simultaneously or independently; the drying chambers can be operated simultaneously or independently, and the operation state and the process can be the same or different.
The refrigerant used in the industrial heat pump drying device can be selected from medium-temperature refrigerants such as R22, R407C and R410a, or medium-temperature refrigerants such as R134a, R406a and CO according to actual conditions2The refrigerant used in the heat pump devices connected in parallel is different or the same.
The heat-carrying medium of the industrial heat pump drying device is water or a heat-conducting solution taking water as a solvent, and the industrial heat pump drying device has the characteristics of no toxicity, no pollution, high specific heat capacity and high thermal inertia.
The drying machine can be used in the drying field of articles such as tobacco leaves, agricultural products, food, medicines, textile printing and dyeing, industrial raw materials, solid waste and the like.
Generally speaking, the utility model relates to the field of machinary, especially, relate to an industry heat pump drying device. And a plurality of groups of heat pump devices and drying devices can be connected in parallel according to requirements. Its advantages are large heat pump system and high mechanical efficiency. The water is used as a heat transfer medium, the heat inertia is larger than that of an air source heat pump by directly utilizing a refrigerant, the temperature fluctuation is small, the cold storage device and the heat storage device are additionally arranged, the operation of the device can be stabilized, and particularly, the drying effect is prevented from being influenced by overlarge temperature fluctuation under the condition that a plurality of heat pump devices are connected in parallel or a plurality of drying devices are connected in parallel. The parallel structure of the industrial heat pump drying device can not only realize the full heat recovery inside a single drying device, but also realize the full heat recovery and heat scheduling among all the drying devices, and reduce the energy waste caused by heat extraction and dehumidification. The configuration of the constant-temperature hot water tank and the constant-temperature cold water tank is adopted, the parallel connection of a plurality of drying devices is well adapted, and the heat pump can still continuously and stably operate under the condition that the secondary freezing pump or the secondary cooling pump is closed. The drying device achieves full-closed drying and is relatively isolated from the outside air, so that the diffusion of volatile substances and dust is reduced, the quality of the dried substances is improved, and the influence of the dried substances on the surrounding environment is reduced.
Creatively, the above effects exist independently, and the combination of the above results can be completed by a set of structure.
The technical effect that above structure was realized realizes clearly, if do not consider additional technical scheme, this patent name can also be an environmental protection and energy saving structure. Some details are not shown in the figures.
It should be noted that the plurality of schemes provided in this patent include their own basic schemes, which are independent of each other and are not restricted to each other, but they may be combined with each other without conflict, so as to achieve a plurality of effects.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims.
Claims (7)
1. An industrial heat pump drying device is characterized by comprising a heat pump device, a heat storage device, a cold storage device, a cooling device and a drying chamber which are independent or connected in parallel;
the heat pump device comprises a compressor, a condenser, an expansion valve and an evaporator; an outlet of a compressor (9) in the heat pump device is connected with a refrigerant side inlet of a condenser (8), a refrigerant side outlet of the condenser (8) is connected with an inlet of an expansion valve (6), an outlet of the expansion valve (6) is connected with a refrigerant side inlet of an evaporator (7), a refrigerant side outlet of the evaporator (7) is connected with an inlet of the compressor (9), and the refrigerant is filled in the evaporator to form a closed refrigerant cycle; the evaporator (7) and the condenser (8) are heat exchangers, heat exchange is formed between the refrigerant side of the condenser and the water side of the condenser, and heat exchange is formed between the refrigerant side of the evaporator and the water side of the evaporator;
the heat storage device comprises a constant temperature hot water tank (11) and a primary cooling pump (10); the constant-temperature hot water tank is connected with a primary cooling pump, the primary cooling pump is connected with a condenser, and the condenser is connected with the constant-temperature hot water tank; the secondary cooling pump (2) is connected with a heat dissipation surface cooler (1.14) which is connected with a constant temperature hot water tank; the constant-temperature hot water tank is connected with the cooling tower through a cooling tower water pump (12);
the cold storage device comprises a constant-temperature cold water tank (4) and a primary refrigerating pump (5);
the constant-temperature cold water tank is connected with a primary refrigerating pump (5), the primary refrigerating pump (5) is connected with an evaporator (7), and the evaporator is connected with the constant-temperature cold water tank; the secondary refrigeration pump (3) is connected with a dehumidification surface air cooler (1.11); the dehumidification surface cooler is connected with the constant-temperature cold water tank;
the cooling device comprises a cooling tower (13) and a cooling tower water pump (12), wherein the cooling tower water pump is connected with the cooling tower through a pipeline.
2. The industrial heat pump drying device of claim 1, wherein the constant temperature hot water tank comprises a first constant temperature hot water tank water outlet (11.1), the first constant temperature hot water tank water outlet (11.1) is connected with a water inlet of the primary cooling pump (10), a water outlet of the primary cooling pump (10) is connected with a water inlet of a condenser, and a water outlet of the condenser is connected with a first constant temperature hot water tank water inlet (11.2); a water outlet II (11.6) of the constant-temperature hot water tank is connected with a water inlet of the secondary cooling pump (2), a water outlet of the secondary cooling pump (2) is connected with a water inlet (1.15) of the heat dissipation surface cooler, and a water outlet (1.16) of the heat dissipation surface cooler is connected with a water inlet II (11.5) of the constant-temperature hot water tank; the third water outlet (11.3) of the constant-temperature hot water tank is connected with the water inlet of the cooling tower water pump (12), the water outlet of the cooling tower water pump (12) is connected with the water inlet of the cooling tower (13), and the water outlet of the cooling tower (13) is connected with the third water inlet (11.4) of the constant-temperature hot water tank.
3. The industrial heat pump drying device as claimed in claim 1 or 2, wherein the constant temperature cold water tank comprises a first constant temperature cold water tank water outlet (4.1), the first constant temperature cold water tank water outlet (4.1) is connected with a water inlet of the primary refrigeration pump (5), a water outlet of the primary refrigeration pump (5) is connected with a water inlet of the evaporator (7), and a water outlet of the evaporator (7) is connected with the first constant temperature cold water tank water inlet (4.2); and a water outlet II (4.4) of the constant-temperature cold water tank is connected with a water inlet of a secondary refrigerating pump (3), a water outlet of the secondary refrigerating pump (3) is connected with a water inlet (1.9) of the dehumidifying surface cooler, and a water outlet (1.10) of the dehumidifying surface cooler is connected with a water inlet II (4.3) of the constant-temperature cold water tank.
4. An industrial heat pump drying device as claimed in claim 3, wherein the drying chamber comprises a drying chamber main body (1.20), a pressure relief valve (1.19) is included above the drying chamber main body (1.20), and the pressure relief valve (1.19) is used for ensuring that the pressure in the drying chamber is consistent with the atmospheric pressure; the right side of the drying chamber main body (1.20) comprises a drying chamber door (1.21); the upper position of the drying chamber main body (1.20) comprises an air duct (1.18), the left end of the air duct (1.18) is provided with a heat-dissipation surface air cooler (1.14) and a heat-dissipation surface air cooler fan (1.17), the left side of the drying chamber main body comprises two clapboards which are respectively a clapboard at the left side and a clapboard in the middle, and the heat-dissipation surface air cooler (1.14) and the heat-dissipation surface air cooler fan (1.17) are arranged on the clapboard in the middle;
an air valve B (1.2) and an air valve D (1.4) are arranged below the heat dissipation surface cooler (1.14); the lower right side of the air valve D (1.4) also comprises an air valve C (1.3), and the air valve C (1.3) is positioned on the middle partition plate;
an air valve A (1.1) is installed on a partition plate on the left side, an air valve H (1.13) is installed on the upper position of a space isolated by the partition plate on the left side, a dehumidification surface air cooler fan (1.12) is arranged below the air valve H (1.13), a dehumidification surface air cooler (1.11) is installed on a horizontal partition plate below the dehumidification surface air cooler fan (1.12), and a water collecting disc (1.6) is arranged below the dehumidification surface air cooler (1.11); an air valve G (1.8) is arranged on the horizontal partition plate, an air valve F (1.7) is arranged on the lower left side of the air valve G (1.8), and an air valve E (1.5) is arranged on the lower right side of the air valve G (1.8).
5. The industrial heat pump drying apparatus of claim 1, wherein the compressor is any one of piston type, scroll type, screw type or centrifugal type.
6. The industrial heat pump drying device of claim 1, wherein the condenser or evaporator is a fin type or a shell and tube type.
7. The industrial heat pump drying device of claim 1, wherein the expansion valve is a physical expansion valve or an electronic expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921586432.XU CN210772877U (en) | 2019-09-23 | 2019-09-23 | Industrial heat pump drying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921586432.XU CN210772877U (en) | 2019-09-23 | 2019-09-23 | Industrial heat pump drying device |
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| CN210772877U true CN210772877U (en) | 2020-06-16 |
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| CN201921586432.XU Active CN210772877U (en) | 2019-09-23 | 2019-09-23 | Industrial heat pump drying device |
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| CN (1) | CN210772877U (en) |
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