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 technology, and in particular to a coating machine with a dehumidification heat pump system. Background Art

[0002] Coating machines are integrated devices that can apply organic film coatings, water-soluble film coatings, and sustained- and controlled-release coatings to tablets, pills, and candies. They are widely used in the pharmaceutical, chemical, and food industries. Coating machines apply a uniform, high-quality film or sugar coating to the tablet core, protecting it from moisture, mildew, and breakage. They also coat the tablets with a colorful coating, enhancing drug recognition and ultimately alleviating pain experienced by patients during medication. They also prevent stomach irritation and maintain pharmacological effects in the intestines by applying an enteric coating.

[0003] In the existing gas delivery link of the coating machine, cooling equipment and heating equipment are required to provide a cold source for the system and a heat source for the system respectively. That is, two energy supply devices are required to supply energy to the gas delivery system, and the energy utilization rate is low, resulting in large energy losses. Summary of the Invention

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

[0005] The evaporator, the compressor, the condenser and the throttle are connected in a loop, the first outlet of the evaporator is connected to the inlet pipeline of the compressor, the outlet end of the compressor is connected to the first inlet pipeline of the condenser, the first outlet of the condenser is connected to the inlet end of the throttle, and the outlet end of the throttle is connected to the first inlet of the evaporator; the evaporator is suitable for being connected to the air handling unit loop to form a cooling cycle, the second outlet of the evaporator is suitable for being connected to the air handling unit pipeline, and the second inlet of the evaporator is suitable for being connected to the air handling unit pipeline; the condenser is suitable for being connected to the air handling unit loop to form a heating cycle, the second outlet of the condenser is suitable for being connected to the air handling unit pipeline, and the second inlet of the condenser is suitable for being connected to the air handling unit pipeline; the cooling cycle is arranged at the front end of the heating cycle.

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

[0007] According to another aspect of the present application, a coating machine with a single-stage heating system is proposed, comprising: the air handling unit, the liquid supply system, the main unit, 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 pipeline of the main unit, the liquid supply system is arranged beside the main unit and is connected to the main unit, the outlet end of the main unit is connected to the inlet end pipeline of the dust collector, and the outlet end of the dust collector is connected to the fan by a pipeline.

[0008] In one possible implementation, the air handling unit includes: a first primary filter, a first medium filter, a second primary filter, a second medium filter, a cooling dehumidifier, a rotary dehumidifier, a heater, a blower, a high-efficiency filter, a reheater and an exhaust fan; the first inlet of the air handling unit is arranged near the bottom of the air handling unit, the first primary filter, the first medium 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 near 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 near the bottom, the heater, the blower and the high-efficiency filter are arranged in sequence At the bottom of the air handling unit, the high-efficiency filter is arranged on a side close to the first outlet of the air handling unit; the second inlet of the air handling unit is arranged on a side of the first outlet of the air handling unit, and the second inlet of the air handling unit is arranged on 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 on the top of the air handling unit, and the second primary filter is arranged on a side close to the second inlet of the air handling unit; the exhaust fan is arranged on a 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 connected to the outside; the rotary dehumidifier is arranged between the exhaust fan, the reheater, the cooling dehumidifier and the heater.

[0009] In one possible implementation, the evaporator is connected to the cooling dehumidifier circuit to form the cooling cycle, the second outlet of the evaporator is connected to the inlet end pipeline of the cooling dehumidifier, and the second inlet of the evaporator is connected to the outlet end pipeline of the cooling dehumidifier; the condenser is connected to the heater circuit to form the heating cycle, the second outlet of the condenser is connected to the inlet end pipeline of the heater, and the second inlet of the condenser is connected to the outlet end pipeline of the heater.

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

[0011] According to another aspect of the present application, a coating machine with a two-stage heating system is proposed, comprising: the air handling unit, the liquid supply system, the main unit, 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 pipeline of the main unit, the liquid supply system is arranged beside the main unit and is connected to the main unit, the outlet end of the main unit is connected to the inlet end pipeline of the dust collector, and the outlet end of the dust collector is connected to the fan by a pipeline.

[0012] In one possible implementation, the air handling unit includes: a first primary filter, a first medium filter, a second primary filter, a second medium filter, a cooling dehumidifier, a rotary dehumidifier, a preheater, a heater, a blower, a high-efficiency filter, a reheater and an exhaust fan; the first inlet of the air handling unit is arranged near the bottom of the air handling unit, the first primary filter, the first medium 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 near 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 near the bottom, the preheater, the heater, the blower and the high-efficiency filter The filter is sequentially arranged at the bottom of the air handling unit, and the high-efficiency filter is arranged on a side close to the first outlet of the air handling unit; the second inlet of the air handling unit is arranged on a side of the first outlet of the air handling unit, and the second inlet of the air handling unit is arranged on 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 on the top of the air handling unit, and the second primary filter is arranged on a side close to the second inlet of the air handling unit; the exhaust fan is arranged on a 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 connected to the outside; the rotary dehumidifier is arranged between the exhaust fan, the reheater, the cooling dehumidifier and the preheater.

[0013] In one possible implementation, the evaporator is connected to the cooling dehumidifier circuit to form the cooling supply cycle, the second outlet of the evaporator is connected to the inlet end pipeline of the cooling dehumidifier, and the second inlet of the evaporator is connected to the outlet end pipeline of the cooling dehumidifier; the condenser is connected to the preheater circuit to form the heating supply cycle, the second outlet of the condenser is connected to the inlet end pipeline of the preheater, and the second inlet of the condenser is connected to the outlet end pipeline of the preheater; the heater is suitable for connection to a boiler.

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

[0015] The beneficial effects of the present application are as follows: the evaporator, condenser, compressor, and throttle are connected in a loop, so that the refrigerant in the pipeline circulates, achieving a heat conservation operation mode, wherein the evaporator is connected in a loop with the air handling unit to form a cooling cycle, and the condenser is connected in a loop with the air handling unit to form a heating cycle, thereby cooling and dehumidifying the outdoor fresh air before heating it. Method 1: The evaporator and the cooling and dehumidifying device in the air handling unit are connected in a loop, and the condenser and the heater in the air handling unit are connected in a loop, which can directly cool, dehumidify, and heat the outdoor fresh air, ensuring energy conservation in the cooling, dehumidification, and heating system. Method 2: The evaporator and the cooling and dehumidifying device in the air handling unit are connected in a loop, and the condenser and the preheater in the air handling unit are connected in a loop. At the same time, a heater is provided at the rear end of the preheater, and heat is supplied to the heater by a boiler. Heating the preheating section can effectively reduce the heat provided by the subsequent boiler, achieving energy conservation and efficiency improvement. A coating machine with a dehumidification heat pump system according to the present application can use a single circulation system to power multiple devices, thereby improving the energy utilization efficiency within the device.

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

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

[0018] Figure 1 A connection diagram of a coating machine with a dehumidification heat pump system according to an embodiment of the present application is shown;

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

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

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

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

[0023] Figure 6 A schematic diagram showing the working process of a coating machine with a multi-stage heating system according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[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 accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0025] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0027] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0028] In addition, numerous specific details are provided in the detailed description below to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

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

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

[0031] A dehumidification heat pump system 6 is used for both cooling and heat dissipation to fully achieve the comprehensive utilization of energy. The compressor 9 sends the high-temperature and high-pressure refrigerant gas to the condenser 10, and after heat exchange with the water in the heating cycle b, the heat is sent to the preheater 1-5 (or heater 1-6). The high-temperature and high-pressure refrigerant vapor passes through the condenser 10 and becomes a high-temperature and high-pressure liquid. The high-temperature and high-pressure liquid passes through the throttle valve and becomes a low-temperature and low-pressure two-phase refrigerant. The refrigerant medium exchanges heat with the water in the cooling cycle a, and the air in the air handling unit 1 is cooled by the low-temperature water. The low-temperature and low-pressure liquid two-phase refrigerant absorbs heat and becomes a low-temperature and low-pressure gas. After entering the compressor 9, it becomes a high-temperature and high-pressure gas and the cycle repeats.

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

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

[0034] According to another aspect of the present application, a coating machine with a single-stage heating system is proposed, comprising: an air handling unit 1, a liquid supply system 2, a main unit 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 pipeline of the main unit 3, the liquid supply system 2 is arranged next to the main unit 3 and is connected to the main unit 3, the outlet end of the main unit 3 is connected to the inlet end pipeline of the dust collector 4, and the outlet end of the dust collector 4 is connected to the fan 5 by a pipeline.

[0035] like Figure 2As shown, in a possible implementation, the air handling unit 1 includes: a first primary filter 1-1, a first medium efficiency filter 1-2, a second primary filter 1-11, a second medium efficiency filter 1-12, a cooling dehumidifier 1-3, a rotary dehumidifier 1-4, a heater 1-6, a blower 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 near the bottom of the air handling unit 1, the first primary filter 1-1, the first medium efficiency filter 1-2 and the cooling dehumidifier 1-3 are arranged in sequence at the bottom of the air handling unit 1, and the first primary filter 1-1 is arranged on one side near 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 near the bottom, the heater 1-6, the blower 1- 7 and high-efficiency filters 1-8 are arranged in sequence 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 on the top of the first outlet of the air handling unit 1, the second primary filter 1-11, the second medium-efficiency filter 1-12 and the reheater 1-9 are arranged in sequence on 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 on 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 dehumidifier 1-3 and the heater 1-6.

[0036] In one possible implementation, the evaporator 12 is connected to the cooling dehumidifier 1-3 circuit to form a cooling cycle a, the second outlet of the evaporator 12 is connected to the inlet end pipeline of the cooling dehumidifier 1-3, and the second inlet of the evaporator 12 is connected to the outlet end pipeline of the cooling dehumidifier 1-3; the condenser 10 is connected to the heater 1-6 circuit to form a heating cycle b, the second outlet of the condenser 10 is connected to the inlet end pipeline of the heater 1-6, and the second inlet of the condenser 10 is connected to the outlet end pipeline of the heater 1-6.

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

[0038] According to another aspect of the present application, a coating machine with a two-stage heating system is proposed, comprising: an air handling unit 1, a liquid supply system 2, a main unit 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 pipeline of the main unit 3, the liquid supply system 2 is arranged next to the main unit 3 and is connected to the main unit 3, the outlet end of the main unit 3 is connected to the inlet end pipeline of the dust collector 4, and the outlet end of the dust collector 4 is connected to the fan 5 by a pipeline.

[0039] like Figure 3 As shown, in a possible implementation, the air handling unit 1 includes: a first primary filter 1-1, a first medium efficiency filter 1-2, a second primary filter 1-11, a second medium efficiency filter 1-12, a cooling dehumidifier 1-3, a rotary dehumidifier 1-4, a preheater 1-5, a heater 1-6, a blower 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 near the bottom of the air handling unit 1, the first primary filter 1-1, the first medium efficiency filter 1-2 and the cooling dehumidifier 1-3 are arranged in sequence at the bottom of the air handling unit 1, and the first primary filter 1-1 is arranged on one side near 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 near the bottom, the preheater 1-5, the heater 1- 6. The air 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 medium-efficiency filter 1-12 and the reheater 1-9 are sequentially arranged on 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 on 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 dehumidifier 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 to speed up the air intake efficiency.

[0041] In one possible implementation, the evaporator 12 is connected to the cooling dehumidifier 1-3 circuit to form a cooling cycle a, the second outlet of the evaporator 12 is connected to the inlet end pipeline of the cooling dehumidifier 1-3, and the second inlet of the evaporator 12 is connected to the outlet end pipeline of the cooling dehumidifier 1-3; the condenser 10 is connected to the preheater 1-5 circuit to form a heating cycle b, the second outlet of the condenser 10 is connected to the inlet end pipeline of the preheater 1-5, and the second inlet of the condenser 10 is connected to the outlet end pipeline of the preheater 1-5; the heater 1-6 is suitable for connection to the boiler.

[0042] In one possible implementation, the dehumidification heat pump system 6 is connected to one or more air handling units 1 to meet the needs of multiple scenarios.

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

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

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

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

[0047] Workflow: (1) Air handling unit 1 introduces fresh air from the outside, which is filtered through primary filtration, medium filtration, cooling and dehumidification, rotary dehumidification, (preheating,) heating, and finally filtered through high efficiency filtration before being sent to host 3 for processing;

[0048] The tablets rotate at a constant speed in the main unit 3, and the liquid supply system 2 sprays the spray drops onto the tablet surface to achieve the coating process;

[0049] The high-temperature air generated in step (1) dries the tablets 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 is discharged to the outside through the fan 5.

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

[0052] In this way, the evaporator, condenser, compressor, and throttle are connected in a loop, allowing the refrigerant in the pipeline to circulate, achieving a heat conservation operation mode. The evaporator is connected in a loop with the air handling unit to form a cooling cycle, and the condenser is connected in a loop with the air handling unit to form a heating cycle, thereby cooling and dehumidifying the outdoor fresh air before heating it. Method 1: The evaporator and the cooling and dehumidifying device in the air handling unit are connected in a loop, and the condenser and the heater in the air handling unit are connected in a loop. This can directly cool, dehumidify, and heat the outdoor fresh air, ensuring energy conservation in the cooling, dehumidification, and heating system. Method 2: The evaporator and the cooling and dehumidifying device in the air handling unit are connected in a loop, and the condenser and the preheater in the air handling unit are connected in a loop. At the same time, a heater is provided at the rear end of the preheater, and heat is supplied to the heater by a boiler. Heating the preheating section can effectively reduce the heat provided by the subsequent boiler, achieving energy conservation and efficiency improvement. According to the present application, a coating machine with a dehumidification heat pump system can use a single circulation system to power multiple devices, thereby improving the energy utilization efficiency within the device.

[0053] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A dehumidification heat pump system, characterized in that: include: Evaporators, condensers, compressors and throttles; The evaporator, the compressor, the condenser and the throttle are connected in a loop, the first outlet of the evaporator is connected to the inlet pipeline of the compressor, the outlet of the compressor is connected to the first inlet pipeline of the condenser, the first outlet of the condenser is connected to the inlet of the throttle, and the outlet of the throttle is connected to the first inlet of the evaporator; The evaporator is suitable for connecting to the air handling unit circuit to form a cooling cycle, the second outlet of the evaporator is suitable for connecting to the air handling unit pipeline, and the second inlet of the evaporator is suitable for connecting to the air handling unit pipeline; The condenser is suitable for being connected to the circuit of the air handling unit to form a heating cycle, the second outlet of the condenser is suitable for being connected to the pipeline of the air handling unit, and the second inlet of the condenser is suitable for being connected to the pipeline of the air handling unit; The cooling cycle is arranged at the front end of the heating cycle.

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

3. A coating machine with a single-stage heating system, characterized in that: include: The air handling unit, liquid supply system, host, dust collector, fan and the dehumidification heat pump system according to any one of claims 1-2; The first outlet of the air handling unit is connected to the inlet end pipeline of the host, the liquid supply system is arranged beside the host and is connected to the host, the outlet end of the host is connected to the inlet end pipeline of the dust collector, and the outlet end of the dust collector is connected to the fan through a pipeline.

4. The coating machine with a single-stage heating 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 dehumidifier, a rotary dehumidifier, a heater, a blower, a high efficiency filter, a reheater and an exhaust fan; The first inlet of the air handling unit is arranged near the bottom of the air handling unit, the first primary filter, the first medium 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 a 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 near the bottom position, the heater, the blower 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 a 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 on 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 on the top of the air handling unit, and the second primary filter is arranged on a 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 connected to 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 single-stage heating system according to claim 4, characterized in that: The evaporator is connected to the cooling dehumidifier circuit to form the cooling cycle, the second outlet of the evaporator is connected to the inlet end pipeline of the cooling dehumidifier, and the second inlet of the evaporator is connected to the outlet end pipeline of the cooling dehumidifier; The condenser is connected to the heater circuit to form the heating cycle. The second outlet of the condenser is connected to the inlet pipe of the heater, and the second inlet of the condenser is connected to the outlet pipe of the heater.

6. The coating machine with a single-stage heating system according to any one of claims 3 to 5, characterized in that: The dehumidification heat pump system is connected to one or more air handling units.

7. A coating machine with a double-stage heating system, characterized in that: include: The air handling unit, liquid supply system, host, dust collector, fan and the dehumidification heat pump system according to any one of claims 1-2; The first outlet of the air handling unit is connected to the inlet end pipeline of the host, the liquid supply system is arranged beside the host and is connected to the host, the outlet end of the host is connected to the inlet end pipeline of the dust collector, and the outlet end of the dust collector is connected to the fan through a pipeline.

8. The coating machine with a dual-stage heating system according to claim 7, 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 dehumidifier, a rotary dehumidifier, a preheater, a heater, a blower, a high efficiency filter, a reheater and an exhaust fan; The first inlet of the air handling unit is arranged near the bottom of the air handling unit, the first primary filter, the first medium 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 a 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 near the bottom position, the preheater, the heater, the blower 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 a 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 on 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 on the top of the air handling unit, and the second primary filter is arranged on a 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 connected to the outside; The rotary dehumidifier is arranged between the exhaust fan, the reheater, the cooling dehumidifier and the preheater.

9. The coating machine with a dual-stage heating system according to claim 8, characterized in that: The evaporator is connected to the cooling dehumidifier circuit to form the cooling cycle, the second outlet of the evaporator is connected to the inlet end pipeline of the cooling dehumidifier, and the second inlet of the evaporator is connected to the outlet end pipeline of the cooling dehumidifier; The condenser is connected to the preheater circuit to form the heating cycle, the second outlet of the condenser is connected to the inlet end pipeline of the preheater, and the second inlet of the condenser is connected to the outlet end pipeline of the preheater; The heater is suitable for being connected to a boiler.

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

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