Coating machine with dehumidification heat pump system

Abstract

According to the coating machine with the dehumidification heat pump system, an evaporator, a condenser, a compressor and a throttler are in loop connection, refrigerant heat conservation is achieved, the evaporator is in loop connection with an air handling unit to form cold supply circulation, the condenser is in loop connection with the air handling unit to form heat supply circulation, and outdoor fresh air is cooled, dehumidified and then heated. According to the first mode, the evaporator and the cooling dehumidifier are in loop connection, the condenser and the heater are in loop connection, and energy conservation in the cooling, dehumidifying and heating system is guaranteed. In the second mode, the evaporator is in loop connection with the cooling dehumidifier, the condenser is in loop connection with the preheater, meanwhile, the heater is arranged at the rear end of the preheater, the boiler supplies heat to the heater, the preheating section is heated, heat provided by the subsequent boiler can be effectively reduced, and the effects of saving energy and improving efficiency are achieved. According to the invention, one circulating system can be used for supplying energy to a plurality of devices, so that the energy utilization efficiency in the device is improved.

Description

Technical Field

[0001] The present application relates to the field of pharmaceutical processes, and in particular to a coating machine with a dehumidification heat pump system. Background Art

[0002] A coating machine is an integrated device that can perform organic film coating, water-soluble film coating, and sustained / controlled release coating on tablets, pills, candies, etc., and is mostly applicable to industries such as pharmaceuticals, chemicals, and food. The coating machine can make the surface of the tablet core obtain a uniform and high-quality film coating or sugar coating, protecting the surface of the tablet core, preventing moisture and mildew and preventing breakage. At the same time, it can coat the tablet with a colorful outer layer, increasing the drug identification ability, and can relieve the pain of the patient during the medication process, avoid irritating the stomach or maintain the pharmacological effect in the intestine by coating enteric-coated tablets.

[0003] In the existing gas transmission link of the coating machine, it is necessary to separately use a cooling device to provide a cold source for the system and a heating device to provide a heat source for the system. That is, when two energy supply devices are required to supply energy to the gas transmission system, the energy utilization rate is low, resulting in large losses. Utility Model Content

[0004] In view of this, the present application proposes a dehumidification heat pump system, including: an evaporator, a condenser, a compressor, and a throttler.

[0005] The evaporator, the compressor, the condenser, and the throttler are connected in a loop. The first outlet of the evaporator is connected to the inlet end of the compressor through a pipeline. The outlet end of the compressor is connected to the first inlet of the condenser through a pipeline. The first outlet of the condenser is connected to the inlet end of the throttler. The outlet end of the throttler is connected to the first inlet of the evaporator. The evaporator is adapted to be connected to the air handling unit in a loop to form a cooling cycle. The second outlet of the evaporator is adapted to be connected to the air handling unit through a pipeline. The second inlet of the evaporator is adapted to be connected to the air handling unit through a pipeline. The condenser is adapted to be connected to the air handling unit in a loop to form a heating cycle. The second outlet of the condenser is adapted to be connected to the air handling unit through a pipeline. The second inlet of the condenser is adapted to be connected to the air handling unit through a pipeline. The cooling cycle is arranged at the front end of the heating cycle.

[0006] In a possible implementation manner, a first circulation pump is arranged between the second inlet of the evaporator and the air handling unit, and a second circulation pump is arranged between the second inlet of the condenser and the air handling unit.

[0007] A coating machine with a single-stage heating system according to another aspect of the present application includes: the air handling unit, the liquid supply system, the main machine, the dust collector, the fan, and the above-mentioned dehumidification heat pump system; the first outlet of the air handling unit is connected to the inlet end of the main machine through a pipeline, the liquid supply system is arranged beside the main machine and is communicated with the main machine, the outlet end of the main machine is connected to the inlet end of the dust collector through a pipeline, and there is a pipeline connection between the outlet end of the dust collector and the fan.

[0008] In a possible implementation manner, the air handling unit includes: a first primary filter, a first medium-efficiency filter, a second primary filter, a second medium-efficiency filter, a cooling and dehumidifying device, a rotary dehumidifier, a heater, a supply fan, a high-efficiency filter, a reheater, and an exhaust fan; the first inlet of the air handling unit is arranged at a position close to the bottom of the air handling unit, the first primary filter, the first medium-efficiency filter, and the cooling and dehumidifying device are sequentially arranged at the bottom of the air handling unit, and the first primary filter is arranged on the side close to the first inlet of the air handling unit; the first outlet of the air handling unit is arranged on the other side opposite to the first inlet of the air handling unit, and the first outlet of the air handling unit is arranged at a position close to the bottom, the heater, the supply fan, and the high-efficiency filter are sequentially arranged at the bottom of the air handling unit, and the high-efficiency filter is arranged on the side close to the first outlet of the air handling unit; the second inlet of the air handling unit is arranged on one side of the first outlet of the air handling unit, and the second inlet of the air handling unit is arranged at the top of the first outlet of the air handling unit, the second primary filter, the second medium-efficiency filter, and the reheater are sequentially arranged at the top of the air handling unit, and the second primary filter is arranged on the side close to the second inlet of the air handling unit; the exhaust fan is arranged on one side of the first inlet of the air handling unit and is arranged at the top of the air handling unit, and the exhaust fan is suitable for being connected to the outside; the rotary dehumidifier is arranged between the exhaust fan, the reheater, the cooling and dehumidifying device, and the heater.

[0009] In a possible implementation manner, the evaporator is connected in a loop with the cooling and dehumidifying device to form the cooling cycle, the second outlet of the evaporator is connected to the inlet end of the cooling and dehumidifying device through a pipeline, and the second inlet of the evaporator is connected to the outlet end of the cooling and dehumidifying device through a pipeline; the condenser is connected in a loop with the heater to form the heating cycle, the second outlet of the condenser is connected to the inlet end of the heater through a pipeline, and the second inlet of the condenser is connected to the outlet end of the heater through a pipeline.

[0010] In a possible implementation, the dehumidifying heat pump system is connected to one or more of the air handling units.

[0011] A coating machine with a two-stage heating system proposed according to another aspect of the present application includes: the air handling unit, a liquid supply system, a main machine, a dust collector, a fan, and the above-mentioned dehumidifying heat pump system; a first outlet of the air handling unit is connected to an inlet end of the main machine through a pipeline, the liquid supply system is arranged beside the main machine and is communicated with the main machine, an outlet end of the main machine is connected to an inlet end of the dust collector through a pipeline, and a pipeline is connected between an outlet end of the dust collector and the fan.

[0012] In a possible implementation, the air handling unit includes: a first primary filter, a first medium-efficiency filter, a second primary filter, a second medium-efficiency filter, a cooling and dehumidifying device, a rotary dehumidifier, a preheater, a heater, a supply fan, a high-efficiency filter, a reheater, and an exhaust fan; a first inlet of the air handling unit is arranged at a position close to the bottom of the air handling unit, the first primary filter, the first medium-efficiency filter, and the cooling and dehumidifying device are sequentially arranged at the bottom of the air handling unit, and the first primary filter is arranged on one side close to the first inlet of the air handling unit; a first outlet of the air handling unit is arranged on the other side opposite to the first inlet of the air handling unit, and the first outlet of the air handling unit is arranged at a position close to the bottom, the preheater, the heater, the supply fan, and the high-efficiency filter are sequentially arranged at the bottom of the air handling unit, and the high-efficiency filter is arranged on one side close to the first outlet of the air handling unit; a second inlet of the air handling unit is arranged on one side of the first outlet of the air handling unit, and the second inlet of the air handling unit is arranged at the top of the first outlet of the air handling unit, the second primary filter, the second medium-efficiency filter, and the reheater are sequentially arranged at the top of the air handling unit, and the second primary filter is arranged on one side close to the second inlet of the air handling unit; the exhaust fan is arranged on one side of the first inlet of the air handling unit and is arranged at the top of the air handling unit, and the exhaust fan is suitable for being connected to the outside; the rotary dehumidifier is arranged between the exhaust fan, the reheater, the cooling and dehumidifying device, and the preheater.

[0013] In a possible implementation manner, the evaporator is connected to the cooling and dehumidifying unit in a loop to form the cooling cycle. The second outlet of the evaporator is connected to the inlet end of the cooling and dehumidifying unit through a pipeline, and the second inlet of the evaporator is connected to the outlet end of the cooling and dehumidifying unit through a pipeline; the condenser is connected to the preheater in a loop to form the heating cycle. The second outlet of the condenser is connected to the inlet end of the preheater through a pipeline, and the second inlet of the condenser is connected to the outlet end of the preheater through a pipeline; the heater is adapted to be connected to a boiler.

[0014] In a possible implementation manner, the dehumidification heat pump system is connected to one or more of the air handling units.

[0015] Advantages of the present application: The evaporator, condenser, compressor, and throttler are connected in a loop to enable the refrigerant in the pipeline to circulate, achieving a heat conservation operation mode. Among them, the evaporator is connected to the air handling unit in a loop to form a cooling cycle, and the condenser is connected to the air handling unit in a loop to form a heating cycle, thereby cooling, dehumidifying, and then heating the outdoor fresh air. Method 1: The evaporator is connected to the cooling and dehumidifying unit in the air handling unit in a loop, and the condenser is connected to the heater in the air handling unit in a loop, which can directly cool, dehumidify, and heat the outdoor fresh air, ensuring energy conservation in the cooling, dehumidifying, and heating system. Method 2: The evaporator is connected to the cooling and dehumidifying unit in the air handling unit in a loop, and the condenser is connected to the preheater in the air handling unit in a loop. At the same time, a heater is provided at the rear end of the preheater, and the heater is heated by a boiler. Heating the preheating section can effectively reduce the heat provided by the subsequent boiler, achieving the effect of energy conservation and efficiency improvement. A coating machine with a dehumidification heat pump system according to the present application can use a single cycle system to supply energy to multiple devices, thereby improving the energy utilization efficiency within the device.

[0016] Other features and aspects of the present application will become clear from the following detailed description of the exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings included in the specification and constituting a part of the specification illustrate the exemplary embodiments, features, and aspects of the present application together with the specification, and are used to explain the principles of the present application.

[0018] Figure 1 Schematic connection diagram of a coating machine with a dehumidification heat pump system showing an embodiment of the present application;

[0019] Figure 2 Partial connection schematic diagram of the air handling unit and the dehumidification heat pump system of a coating machine with a single-stage heating system showing an embodiment of the present application;

[0020] Figure 3Schematic diagram of partial connection of the air handling unit and the dehumidification heat pump system of a coating machine with a two-stage heating system according to an embodiment of the present application;

[0021] Figure 4 Schematic diagram of the connection of the dehumidification heat pump system of a coating machine with a dehumidification heat pump system corresponding to multiple air handling units according to an embodiment of the present application;

[0022] Figure 5 Schematic diagram of the working process of a coating machine with a single-stage heating system according to an embodiment of the present application;

[0023] Figure 6 Schematic diagram of the working process of a coating machine with a multi-stage heating system according to an embodiment of the present application. Detailed Description of the Invention

[0024] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0025] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0027] The special term "exemplary" herein means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" herein need not be construed as superior to or better than other embodiments.

[0028] In addition, for a better illustration of the present application, numerous specific details are provided in the following detailed implementation manners. Those skilled in the art should understand that the present application can still be implemented without certain specific details. In some instances, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail to highlight the gist of the present application.

[0029] As shown in the figure, a dehumidifying heat pump system 6 includes: an evaporator 12, a condenser 10, a compressor 9, and a throttler 11.

[0030] The evaporator 12, the compressor 9, the condenser 10, and the throttler 11 are connected in a loop. The first outlet of the evaporator 12 is connected to the inlet end of the compressor 9 through a pipeline. The outlet end of the compressor 9 is connected to the first inlet of the condenser 10 through a pipeline. The first outlet of the condenser 10 is connected to the inlet end of the throttler 11. The outlet end of the throttler 11 is connected to the first inlet of the evaporator 12. The evaporator 12 is adapted to be connected to the air handling unit 1 in a loop to form a cooling cycle a. The second outlet of the evaporator 12 is adapted to be connected to the air handling unit 1 through a pipeline. The second inlet of the evaporator 12 is adapted to be connected to the air handling unit 1 through a pipeline. The condenser 10 is adapted to be connected to the air handling unit 1 in a loop to form a heating cycle b. The second outlet of the condenser 10 is adapted to be connected to the air handling unit 1 through a pipeline. The second inlet of the condenser 10 is adapted to be connected to the air handling unit 1 through a pipeline. The cooling cycle a is arranged at the front end of the heating cycle b.

[0031] By making full use of both the cooling and heat dissipation ends of a set of dehumidifying heat pump system 6, the comprehensive utilization of energy is achieved. The compressor 9 sends the high-temperature and high-pressure refrigerant gas to the condenser 10. After exchanging heat with the water in the heating cycle b, the heat is sent into the preheater 1-5 (or heater 1-6). The high-temperature and high-pressure refrigerant steam becomes high-temperature and high-pressure liquid after passing through the condenser 10. The high-temperature and high-pressure liquid becomes low-temperature and low-pressure two-phase refrigerant after passing through the throttle valve. The refrigerant medium exchanges heat with the water in the cooling cycle a, cools the air in the air handling unit 1 through the low-temperature water. The low-temperature and low-pressure two-phase liquid refrigerant becomes low-temperature and low-pressure gas after absorbing heat and enters the compressor 9 to become high-temperature and high-pressure gas, and so on in a cycle.

[0032] Among them, the setting position of the outlet end of the cooling and dehumidifying device 1-3 is higher than the setting position of the inlet end of the cooling and dehumidifying device 1-3. The setting position of the outlet end of the preheater 1-5 is higher than the setting position of the inlet end of the preheater 1-5. The setting position of the outlet end of the heater 1-6 is higher than the setting position of the inlet end of the heater 1-6.

[0033] In a possible implementation, a first circulation pump 7 is provided between the second inlet of the evaporator 12 and the air handling unit 1. The pumping direction of the first circulation pump 7 is from the air handling unit 1 towards the evaporator 12, and the first circulation pump 7 is arranged at one end close to the evaporator 12; a second circulation pump 8 is provided between the second inlet of the condenser 10 and the air handling unit 1. The pumping direction of the second circulation pump 8 is from the air handling unit 1 towards the condenser 10, and the second circulation pump 8 is arranged at one end close to the condenser 10.

[0034] A coating machine with a single-stage heating system according to another aspect of the present application includes: an air handling unit 1, a liquid supply system 2, a main machine 3, a dust collector 4, a fan 5, and the above-mentioned dehumidification heat pump system 6; the first outlet of the air handling unit 1 is connected to the inlet end of the main machine 3 through a pipeline, the liquid supply system 2 is arranged beside the main machine 3 and is communicated with the main machine 3, the outlet end of the main machine 3 is connected to the inlet end of the dust collector 4 through a pipeline, and a pipeline is connected between the outlet end of the dust collector 4 and the fan 5.

[0035] As Figure 2As shown, in a possible implementation, the air handling unit 1 includes: a first primary filter 1-1, a first intermediate filter 1-2, a second primary filter 1-11, a second intermediate filter 1-12, a cooling and dehumidifying unit 1-3, a rotary dehumidifier 1-4, a heater 1-6, a supply fan 1-7, a high-efficiency filter 1-8, a reheater 1-9, and an exhaust fan 1-10; the first inlet of the air handling unit 1 is arranged at a position close to the bottom of the air handling unit 1, the first primary filter 1-1, the first intermediate filter 1-2, and the cooling and dehumidifying unit 1-3 are sequentially arranged at the bottom of the air handling unit 1, and the first primary filter 1-1 is arranged on the side close to the first inlet of the air handling unit 1; the first outlet of the air handling unit 1 is arranged on the other side opposite to the first inlet of the air handling unit 1, and the first outlet of the air handling unit 1 is arranged at a position close to the bottom, the heater 1-6, the supply fan 1-7, and the high-efficiency filter 1-8 are sequentially arranged at the bottom of the air handling unit 1, and the high-efficiency filter 1-8 is arranged on the side close to the first outlet of the air handling unit 1; the second inlet of the air handling unit 1 is arranged on the side of the first outlet of the air handling unit 1, and the second inlet of the air handling unit 1 is arranged at the top of the first outlet of the air handling unit 1, the second primary filter 1-11, the second intermediate filter 1-12, and the reheater 1-9 are sequentially arranged at the top of the air handling unit 1, and the second primary filter 1-11 is arranged on the side close to the second inlet of the air handling unit 1; the exhaust fan 1-10 is arranged on the side of the first inlet of the air handling unit 1, and the exhaust fan 1-10 is arranged at the top of the air handling unit 1, and the exhaust fan 1-10 is suitable for being connected to the outside; the rotary dehumidifier 1-4 is arranged between the exhaust fan 1-10, the reheater 1-9, the cooling and dehumidifying unit 1-3, and the heater 1-6.

[0036] In a possible implementation, the evaporator 12 is connected in a loop with the cooling and dehumidifying unit 1-3 to form a cooling cycle a. The second outlet of the evaporator 12 is connected to the inlet end of the cooling and dehumidifying unit 1-3 through a pipeline, and the second inlet of the evaporator 12 is connected to the outlet end of the cooling and dehumidifying unit 1-3 through a pipeline; the condenser 10 is connected in a loop with the heater 1-6 to form a heating cycle b. The second outlet of the condenser 10 is connected to the inlet end of the heater 1-6 through a pipeline, and the second inlet of the condenser 10 is connected to the outlet end of the heater 1-6 through a pipeline.

[0037] In a possible implementation, the dehumidification heat pump system 6 is connected to one or more air handling units 1.

[0038] A coating machine with a two-stage heating system according to another aspect of the present application includes: an air handling unit 1, a liquid supply system 2, a main machine 3, a dust collector 4, a fan 5, and the above-mentioned dehumidification heat pump system 6; the first outlet of the air handling unit 1 is connected to the inlet end of the main machine 3 through a pipeline, the liquid supply system 2 is arranged beside the main machine 3 and is communicated with the main machine 3, the outlet end of the main machine 3 is connected to the inlet end of the dust collector 4 through a pipeline, and a pipeline is connected between the outlet end of the dust collector 4 and the fan 5.

[0039] As Figure 3 shown, in a possible implementation manner, the air handling unit 1 includes: a first primary filter 1-1, a first medium filter 1-2, a second primary filter 1-11, a second medium filter 1-12, a cooling and dehumidifying device 1-3, a rotary dehumidifier 1-4, a preheater 1-5, a heater 1-6, a supply fan 1-7, a high-efficiency filter 1-8, a reheater 1-9, and an exhaust fan 1-10; the first inlet of the air handling unit 1 is arranged at a position close to the bottom of the air handling unit 1, the first primary filter 1-1, the first medium filter 1-2, and the cooling and dehumidifying device 1-3 are sequentially arranged at the bottom of the air handling unit 1, and the first primary filter 1-1 is arranged on one side close to the first inlet of the air handling unit 1; the first outlet of the air handling unit 1 is arranged on the other side opposite to the first inlet of the air handling unit 1, and the first outlet of the air handling unit 1 is arranged at a position close to the bottom, the preheater 1-5, the heater 1-6, the supply fan 1-7, and the high-efficiency filter 1-8 are sequentially arranged at the bottom of the air handling unit 1, and the high-efficiency filter 1-8 is arranged on one side close to the first outlet of the air handling unit 1; the second inlet of the air handling unit 1 is arranged on one side of the first outlet of the air handling unit 1, and the second inlet of the air handling unit 1 is arranged at the top of the first outlet of the air handling unit 1, the second primary filter 1-11, the second medium filter 1-12, and the reheater 1-9 are sequentially arranged at the top of the air handling unit 1, and the second primary filter 1-11 is arranged on one side close to the second inlet of the air handling unit 1; the exhaust fan 1-10 is arranged on one side of the first inlet of the air handling unit 1 and is arranged at the top of the air handling unit 1, and the exhaust fan 1-10 is suitable for being connected to the outside; the rotary dehumidifier 1-4 is arranged between the exhaust fan 1-10, the reheater 1-9, the cooling and dehumidifying device 1-3, and the preheater 1-5.

[0040] Among them, the first primary filter 1-1 and the second primary filter 1-11 are the same, the first medium filter 1-2 and the second medium filter 1-12 are the same, and the air handling unit 1 is provided with two air inlets, which can improve the air intake efficiency.

[0041] In a possible implementation manner, the evaporator 12 is connected in a loop with the cooling and dehumidifying unit 1-3 to form a cooling cycle a. The second outlet of the evaporator 12 is connected to the inlet end of the cooling and dehumidifying unit 1-3 through a pipeline, and the second inlet of the evaporator 12 is connected to the outlet end of the cooling and dehumidifying unit 1-3 through a pipeline; the condenser 10 is connected in a loop with the preheater 1-5 to form a heating cycle b. The second outlet of the condenser 10 is connected to the inlet end of the preheater 1-5 through a pipeline, and the second inlet of the condenser 10 is connected to the outlet end of the preheater 1-5 through a pipeline; the heater 1-6 is adapted to be connected to a boiler.

[0042] In a possible implementation manner, the desiccant heat pump system 6 is arranged in connection with one or more air handling units 1, which can meet the use in multiple scenarios.

[0043] More specifically, as Figure 4 shown, for a coating machine with a single-stage heating system and a coating machine with a two-stage heating system, a pipeline is connected and arranged at the second inlet of the evaporator 12, and multiple pipelines are branched and arranged on the side close to the air handling unit 1. A pipeline is connected and arranged at the second inlet of the evaporator 12, and multiple pipelines are branched and arranged on the side close to the air handling unit 1. A pipeline is connected and arranged at the second inlet of the condenser 10, and multiple pipelines are branched and arranged on the side close to the air handling unit 1. A pipeline is connected and arranged at the second outlet of the condenser 10, and multiple pipelines are branched and arranged on the side close to the air handling unit 1.

[0044] Furthermore, when the desiccant heat pump system 6 is connected to multiple air handling units 1, it can be simultaneously connected to the air handling unit 1 in a coating machine with a single-stage heating system and the air handling unit 1 in a coating machine with a two-stage heating system, and there is no limitation on the connection sequence.

[0045] Since the energy consumption of heating by a boiler is relatively large, the preheater 1-5 can reduce the heating output of the heating section by the boiler, achieving an energy-saving effect.

[0046] As Figure 1 shown, the outdoor air respectively passes through the first primary filter 1-1, the second medium filter 1-12, the cooling and dehumidifying unit 1-3, the rotary desiccant dehumidifier 1-4, the heater 1-6, the supply fan 1-7 and the high-efficiency filter 1-8, and is sent to the main machine 3 by the supply fan 1-7. The tablets in the main machine 3 rotate evenly, and the liquid supply system 2 sprays and drips the liquid onto the surface of the tablets in the main machine 3 to realize the coating process of the tablets. Then, the air handling unit 1 provides high-temperature air for drying the medicine. After drying, the medicine enters the next link of pharmaceutical production. The air after drying the medicine enters the dust collector 4 for dust removal and is discharged through the fan 5.

[0047] Workflow: (1) The air handling unit 1 introduces fresh air from the outside. After primary filtration, medium filtration, cooling and dehumidification, rotary dehumidification, (preheating,) heating, and finally high-efficiency filtration, it is sent into the main machine 3 for processing;

[0048] The tablets rotate uniformly in the main machine 3, and the liquid supply system 2 sprays droplets onto the surface of the tablets to achieve the coating process;

[0049] The high-temperature air generated in step (1) is used to dry the tablets that have been coated in step (2);

[0050] The high-temperature air used in step (3) is sent to the dust collector 4 through a pipeline for treatment and then discharged to the outside through the fan 5.

[0051] It should be noted that although an example of a coating machine with a dehumidification heat pump system is introduced above with this application, those skilled in the art can understand that this application should not be limited to this. In fact, users can flexibly set each parameter according to personal preferences and / or actual application scenarios as long as the design is reasonable.

[0052] In this way, the evaporator, condenser, compressor, and throttler are connected in a loop, enabling the refrigerant in the pipeline to circulate and achieving an operation mode of heat conservation. Among them, the evaporator is connected to the air handling unit in a loop to form a cooling cycle, and the condenser is connected to the air handling unit in a loop to form a heating cycle, thereby first cooling and dehumidifying and then heating the outdoor fresh air. Method 1: The evaporator is connected to the cooling and dehumidifier in the air handling unit in a loop, and the condenser is connected to the heater in the air handling unit in a loop, which can directly cool, dehumidify, and heat the outdoor fresh air to ensure energy conservation in the cooling, dehumidifying, and heating system. Method 2: The evaporator is connected to the cooling and dehumidifier in the air handling unit in a loop, and the condenser is connected to the preheater in the air handling unit in a loop. At the same time, a heater is provided at the rear end of the preheater, and the preheating section is heated by a boiler. Heating the preheating section can effectively reduce the heat provided by the subsequent boiler, achieving the effect of energy conservation and efficiency improvement. A coating machine with a dehumidification heat pump system according to this application can use a single circulation system to supply energy to multiple devices, thereby improving the energy utilization efficiency within the device.

[0053] The embodiments of this application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary technicians in the technical field to understand the disclosed embodiments.

Claims

1. A coating machine with a dehumidifying heat pump system, characterized in that, Comprising: An evaporator, a condenser, a compressor and a throttler; The evaporator, the compressor, the condenser and the throttler are connected in a loop. The first outlet of the evaporator is connected to the inlet end of the compressor through a pipeline. The outlet end of the compressor is connected to the first inlet of the condenser through a pipeline. The first outlet of the condenser is connected to the inlet end of the throttler. The outlet end of the throttler is connected to the first inlet of the evaporator; The evaporator is adapted to be connected in a loop with an air handling unit to form a cooling cycle. The second outlet of the evaporator is adapted to be connected to the air handling unit through a pipeline. The second inlet of the evaporator is adapted to be connected to the air handling unit through a pipeline; The condenser is adapted to be connected in a loop with the air handling unit to form a heating cycle. The second outlet of the condenser is adapted to be connected to the air handling unit through a pipeline. The second inlet of the condenser is adapted to be connected to the air handling unit through a pipeline; The cooling cycle is arranged at the front end of the heating cycle.

2. The coating machine with a dehumidification heat pump system according to claim 1, characterized in that, A first circulation pump is arranged between the second inlet of the evaporator and the air handling unit. A second circulation pump is arranged between the second inlet of the condenser and the air handling unit.

3. The coating machine with a dehumidifying heat pump system according to claim 1, characterized in that Comprising: The air handling unit, a liquid supply system, a main unit, a dust collector and a fan; The first outlet of the air handling unit is connected to the inlet end of the main unit through a pipeline. The liquid supply system is arranged beside the main unit and is communicated with the main unit. The outlet end of the main unit is connected to the inlet end of the dust collector through a pipeline. There is a pipeline connection between the outlet end of the dust collector and the fan.

4. The coating machine with a dehumidification heat pump system according to claim 3, characterized in that The air handling unit includes: a first primary filter, a first medium filter, a second primary filter, a second medium filter, a cooling and dehumidifying device, a rotary dehumidifier, a heater, a supply fan, a high-efficiency filter, a reheater and an exhaust fan; The first inlet of the air handling unit is arranged at a position close to the bottom of the air handling unit. The first primary filter, the first medium filter and the cooling and dehumidifying device are sequentially arranged at the bottom of the air handling unit, and the first primary filter is arranged on one side close to the first inlet of the air handling unit; The first outlet of the air handling unit is arranged on the other side opposite to the first inlet of the air handling unit, and the first outlet of the air handling unit is arranged at a position close to the bottom. The heater, the supply fan and the high-efficiency filter are sequentially arranged at the bottom of the air handling unit, and the high-efficiency filter is arranged on one side close to the first outlet of the air handling unit; The second inlet of the air handling unit is arranged on one side of the first outlet of the air handling unit, and the second inlet of the air handling unit is arranged at the top of the first outlet of the air handling unit. The second primary filter, the second medium filter and the reheater are sequentially arranged at the top of the air handling unit, and the second primary filter is arranged on one side close to the second inlet of the air handling unit; The exhaust fan is arranged on one side of the first inlet of the air handling unit, and the exhaust fan is arranged on the top of the air handling unit, and the exhaust fan is suitable for being arranged in communication with the outside; The rotary dehumidifier is arranged between the exhaust fan, the reheater, the cooling dehumidifier and the heater.

5. The coating machine with a dehumidifying heat pump system according to claim 4, characterized in that, The evaporator is connected in a loop with the cooling dehumidifier to form the cooling cycle. The second outlet of the evaporator is connected to the inlet end of the cooling dehumidifier through a pipeline, and the second inlet of the evaporator is connected to the outlet end of the cooling dehumidifier through a pipeline; The condenser is connected in a loop with the heater to form the heating cycle. The second outlet of the condenser is connected to the inlet end of the heater through a pipeline, and the second inlet of the condenser is connected to the outlet end of the heater through a pipeline.

6. The pan coater with a dehumidifying heat pump system according to any one of claims 3-5, characterized in that The dehumidification heat pump system is connected to one or more of the air handling units.

7. The coating machine with a dehumidification heat pump system according to claim 1, characterized in that, Including: The air handling unit, the liquid supply system, the main unit, the dust collector, the fan; The first outlet of the air handling unit is connected to the inlet end of the main unit through a pipeline. The liquid supply system is arranged beside the main unit and is communicated with the main unit. The outlet end of the main unit is connected to the inlet end of the dust collector through a pipeline, and there is a pipeline connection between the outlet end of the dust collector and the fan.

8. The coating machine with a dehumidification heat pump system according to claim 7, characterized in that, The air handling unit includes: a first primary filter, a first medium - efficiency filter, a second primary filter, a second medium - efficiency filter, a cooling dehumidifier, a rotary dehumidifier, a pre - heater, a heater, a supply fan, a high - efficiency filter, a reheater and an exhaust fan; The first inlet of the air handling unit is arranged at a position close to the bottom of the air handling unit. The first primary filter, the first medium - efficiency filter and the cooling dehumidifier are arranged in sequence at the bottom of the air handling unit, and the first primary filter is arranged on one side close to the first inlet of the air handling unit; The first outlet of the air handling unit is arranged on the other side opposite to the first inlet of the air handling unit, and the first outlet of the air handling unit is arranged at a position close to the bottom. The pre - heater, the heater, the supply fan and the high - efficiency filter are arranged in sequence at the bottom of the air handling unit, and the high - efficiency filter is arranged on one side close to the first outlet of the air handling unit; The second inlet of the air handling unit is arranged on one side of the first outlet of the air handling unit, and the second inlet of the air handling unit is arranged at the top of the first outlet of the air handling unit. The second primary filter, the second medium - efficiency filter and the reheater are arranged in sequence at the top of the air handling unit, and the second primary filter is arranged on one side close to the second inlet of the air handling unit; The exhaust fan is arranged on one side of the first inlet of the air handling unit, and the exhaust fan is arranged on the top of the air handling unit, and the exhaust fan is suitable for being arranged in communication with the outside; The rotary dehumidifier is arranged between the exhaust fan, the reheater, the cooling dehumidifier and the pre - heater.

9. The coating machine with a dehumidification heat pump system according to claim 8, wherein The evaporator is connected to the cooling and dehumidifier in a loop to form the cooling cycle. The second outlet of the evaporator is connected to the inlet end of the cooling and dehumidifier through a pipeline, and the second inlet of the evaporator is connected to the outlet end of the cooling and dehumidifier through a pipeline; The condenser is connected to the preheater in a loop to form the heating cycle. The second outlet of the condenser is connected to the inlet end of the preheater through a pipeline, and the second inlet of the condenser is connected to the outlet end of the preheater through a pipeline; The heater is adapted to be connected to a boiler.

10. The coating machine with a dehumidification heat pump system according to any one of claims 7-9, characterized in that, The dehumidification heat pump system is connected to one or more of the air handling units.

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