Fresh air dehumidification and purification air conditioning unit

Abstract

The embodiment of the utility model provides a fresh air dehumidification and purification air conditioning unit which comprises a box body, a fresh air inlet, an air inlet valve, a fresh air supply outlet, an air supply valve, a filter assembly located between the air inlet valve and the air supply valve, a surface air cooler, a dehumidification heat pipe assembly, a fan flow equalizing assembly and a rear filter assembly. The dehumidification heat pipe assembly comprises a heat recovery precooling part located in front of the surface air cooler, a heat recovery reheating part located behind the surface air cooler and a connecting part connecting the heat recovery precooling part and the heat recovery reheating part. And a heat recovery precooling part in the dehumidification heat pipe assembly is used for precooling inlet air so that the precooled air can enter the surface air cooler, and a heat recovery reheating part in the dehumidification heat pipe assembly is used for reheating cold air output by the surface air cooler. Compared with an existing product, under the condition that the refrigerating capacity of the surface air cooler is not increased, a larger dehumidification effect can be achieved, and energy loss is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of air treatment, and in particular to a fresh air dehumidification and purification air conditioning unit. Background Art

[0002] Indoor air quality is receiving increasing attention in daily life, and thermal comfort is generally considered a key factor in evaluating indoor air quality. Temperature and humidity are the primary parameters for human comfort perception. Generally, appropriate temperature and relative humidity not only effectively inhibit the growth of pathogens and viruses, reducing the risk of illness, but also minimize the damage caused by high humidity to interior decoration. Furthermore, in the industrial sector, animal rooms, laboratories, and electronics factories are equipped with dedicated dehumidification and purification equipment to ensure the required temperature, humidity, and cleanliness levels within the workshop.

[0003] For places with a relatively high humidity load, relying solely on surface coolers for dehumidification may not be enough. Or, when the humidity reaches a certain level, the temperature is still relatively low, requiring reheating of the air. This cooling-before-heating approach not only increases initial investment and operating costs, but also wastes energy. Using a dehumidifier not only increases the size of the unit but also requires regenerating heat to restore its dehumidification capacity, limiting its use. Summary of the Invention

[0004] In view of the above deficiencies in the prior art, the purpose of the present disclosure is to provide a fresh air dehumidification and purification air-conditioning unit, which not only solves the dehumidification energy consumption problem but also meets the requirements of indoor purification.

[0005] The present disclosure provides a fresh air dehumidification and purification air-conditioning unit, comprising: a box body, a fresh air inlet and an air inlet valve provided at the first end of the box body, a fresh air supply port and an air supply valve provided at the second end of the box body, a pre-filter assembly, a surface cooler and a dehumidification heat pipe assembly, a fan flow equalizing assembly, and a post-filter assembly are sequentially provided in the box body from the first end to the second end, wherein the dehumidification heat pipe assembly includes a heat recovery pre-cooling part located before the surface cooler, a heat recovery reheating part located after the surface cooler, and a connecting part connecting the heat recovery pre-cooling part and the heat recovery reheating part.

[0006] In certain embodiments, the dehumidification heat pipe assembly is a multi-layer heat circuit structure, and the multi-layer heat circuit is arranged in the heat recovery pre-cooling part and the heat recovery reheating part.

[0007] In certain embodiments, the dehumidification heat pipe assembly includes a first multi-layer heat circuit structure arranged in the heat recovery pre-cooling part and a second multi-layer heat circuit structure arranged in the heat recovery reheating part, and the first multi-layer heat circuit structure and the second multi-layer heat circuit structure are connected by a pipe line arranged in the connecting part.

[0008] In certain embodiments, the dehumidification heat pipes in the dehumidification heat pipe assembly are filled with refrigerant.

[0009] In certain embodiments, the refrigerant includes difluoromethane, tetrafluoroethane, pentafluoroethane, propane, or any combination thereof.

[0010] In some embodiments, the dehumidification heat pipe is provided with heat dissipation fins.

[0011] In some embodiments, the surface cooler is further provided with a rear surface cooling water baffle.

[0012] In some embodiments, the pre-filter component includes a coarse-efficiency filter and a medium-efficiency filter arranged in front and behind, and the post-filter component includes a high-efficiency filter, a sub-high-efficiency filter, an activated carbon filter, an electronic purification filter, or an ozone generator.

[0013] In certain embodiments, the fan flow balancing assembly includes a fan and a motor, and the motor drives the fan via a belt or the motor directly drives the fan.

[0014] In some embodiments, the fan flow balancing assembly further includes a flow balancing device.

[0015] The fresh air dehumidification and purification air conditioning unit provided by the present disclosure includes: a housing, a fresh air inlet and an air inlet valve, a fresh air supply outlet and an air supply valve, a filter assembly located between the air inlet valve and the air supply valve, a surface cooler and a dehumidification heat pipe assembly, a fan flow equalization assembly, and a post-filter assembly, wherein the dehumidification heat pipe assembly includes a heat recovery pre-cooling section located before the surface cooler, a heat recovery reheating section located after the surface cooler, and a connecting section connecting the heat recovery pre-cooling section and the heat recovery reheating section. The heat recovery pre-cooling section in the dehumidification heat pipe assembly is used to pre-cool the incoming air so that the pre-cooled air enters the surface cooler, and the heat recovery reheating section in the dehumidification heat pipe assembly is used to reheat the cold air output by the surface cooler. Compared with existing products, a greater dehumidification effect can be achieved without increasing the cooling capacity of the surface cooler, and energy loss can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a top view structural schematic diagram of the fresh air dehumidification and purification air-conditioning unit in the first embodiment of the present disclosure.

[0017] Figure 2 Shown is a schematic structural diagram of a dehumidification heat pipe assembly in one embodiment. DETAILED DESCRIPTION

[0018] The following describes the embodiments of the present disclosure through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present disclosure from the information disclosed in this disclosure. The present disclosure can also be implemented or applied through different specific embodiments. The details of the present disclosure can also be modified or changed according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments and features in the embodiments of the present disclosure can be combined with each other unless there is a conflict.

[0019] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0020] Throughout the present disclosure, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or a group of embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, as described in the present disclosure, without conflicting requirements.

[0021] 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 technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this disclosure, "a group" means two or more, unless otherwise specifically defined.

[0022] In order to clearly describe the present disclosure, components not related to the description are omitted, and the same or similar components throughout the specification are denoted by the same reference numerals.

[0023] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0024] Although the terms first, second, etc. are used in this document to represent various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are represented. Furthermore, as used in this document, the singular forms "one," "an," and "the" are intended to also include the plural forms, unless there is a contrary indication in the context. It should be further understood that the terms "comprise" and "include" indicate the presence of the described features, steps, operations, elements, modules, projects, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or a group of other features, steps, operations, elements, modules, projects, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0025] The technical terms used herein are intended only to refer to specific embodiments and are not intended to limit the present disclosure. The singular form used herein also includes the plural form unless the statement explicitly indicates otherwise. The term "comprising" as used in this specification is intended to specify specific features, regions, integers, steps, operations, elements, and / or components and does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and / or components.

[0026] Although not defined differently, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the current message. Unless otherwise defined, they should not be overly interpreted as ideal or highly formalized meanings.

[0027] In the prior art, air is pre-cooled by an additional device before dehumidification, and then heated by an additional device after dehumidification, resulting in high energy consumption. In view of this, the present disclosure provides a fresh air dehumidification and purification unit to solve the problems in the prior art.

[0028] The present disclosure provides a fresh air dehumidification and purification unit, in which a filter assembly, a surface cooler and a dehumidification heat pipe assembly, a fan flow equalization assembly, and a post-filter assembly are sequentially arranged in a housing, wherein the dehumidification heat pipe assembly includes a heat recovery pre-cooling unit located before the surface cooler, a heat recovery reheating unit located after the surface cooler, and a connecting portion connecting the heat recovery pre-cooling unit and the heat recovery reheating unit. The heat recovery pre-cooling unit in the dehumidification heat pipe assembly is used to pre-cool the incoming air so that the pre-cooled air enters the surface cooler, and the heat recovery reheating unit in the dehumidification heat pipe assembly is used to reheat the cold air output by the surface cooler. Compared with existing products, a greater dehumidification effect can be achieved without increasing the cooling capacity of the surface cooler, and energy loss can be reduced.

[0029] See also Figure 1 , which is a schematic diagram of the top view of the fresh air dehumidification and purification air-conditioning unit in the first embodiment of the present disclosure.

[0030] like Figure 1 As shown, the fresh air dehumidification and purification air conditioning unit may specifically include: a housing 10, wherein the housing 10 has a first end and a second end disposed opposite each other, wherein the first end may also be referred to as the front end, and the second end may also be referred to as the rear end. A fresh air inlet 111 and a fresh air valve 112 are provided at the first end of the housing 10, and a fresh air supply port 191 and a supply air valve 192 are provided at the second end of the housing 10. Within the housing 10, from the first end to the second end, are sequentially provided a pre-filter assembly 12, a surface cooler 13, a dehumidification heat pipe assembly 14, a fan flow equalization assembly 15, and a post-filter assembly 16.

[0031] The fresh air inlet 111 and the air inlet valve 112 are disposed at the first end of the housing 10. In some embodiments, the fresh air inlet is disposed at an end surface of the first end of the housing 10. In some embodiments, the fresh air inlet is disposed at the top surface, side surface, or bottom portion of the first end of the housing 10. Furthermore, an insect-proof filter or grille may be disposed at the fresh air inlet. For example, a filter frame may be fixedly connected to the fresh air inlet, and a filter may be fixedly connected within the filter frame.

[0032] Similarly, the fresh air supply port 191 and the air supply valve 192 are provided at the second end of the housing 10. In some embodiments, the fresh air supply port is provided at the end surface of the second end of the housing 10. In some embodiments, the fresh air supply port is provided at the top surface of the second end of the housing 10. Similarly, in some embodiments, the fresh air supply port is provided at the end surface of the second end of the housing 10. In some embodiments, the fresh air supply port is provided at the top surface, side surface or lower portion of the second end of the housing 10. In addition, an insect-proof filter or grille may be further provided at the fresh air supply port. For example, a filter frame is fixedly connected to the fresh air supply port, and a filter is fixedly connected inside the filter frame.

[0033] The box body 10 is provided with a pre-filter assembly 12 , a surface cooler 13 and a dehumidification heat pipe assembly 14 , a fan flow equalizing assembly 15 , and a post-filter assembly 16 in sequence from the first end to the second end.

[0034] The pre-filter assembly 12 is used to pre-filter the air entering from the fresh air inlet 111. In some embodiments, the pre-filter assembly 12 may include a coarse filter 121 and a medium filter 122 arranged in a front-to-rear manner. After mixing, the air entering from the fresh air inlet 111 passes through the coarse filter and the medium filter 122 in sequence for pre-filtration.

[0035] In some embodiments, the coarse filter comprises a plate filter or a bag filter. Taking the plate filter as an example, its filtration grade can be, for example, G3 or G4.

[0036] In some embodiments, the medium efficiency filter includes a plate filter or a bag filter. Taking the bag filter as an example, the filtration grade thereof can be, for example, F5, F6, F7, or F8.

[0037] The surface cooler 13 is provided after the pre-filter assembly 12 and is used to cool the air after the pre-filtration again so that condensed water can be precipitated from the air after the cooling, thereby playing a role of dehumidification.

[0038] Cooling the air through the surface cooler 13 utilizes a low-temperature refrigerant, etc., to absorb heat within the surface cooler, thereby cooling the air. The surface cooler 13 typically comprises cooling fins and a circuitous metal tube loop interspersed through the fins, with the low-temperature refrigerant contained within the copper tube. In practice, the low-temperature refrigerant within the metal tube absorbs heat from the air flowing through the cooling fins outside the metal tube, cooling the air and causing condensation to form. The low-temperature refrigerant then circulates away the heat absorbed from the air.

[0039] In certain embodiments, the surface cooler may include aluminum fins and a copper tube loop interspersed with the aluminum fins in a U-shaped, meandering pattern. Of course, the heat dissipation fins may also be stainless steel fins, copper fins, etc., and the copper tube loop may also be a steel tube loop, stainless steel loop, etc. The low-temperature refrigerant flowing through the copper tube loop includes, but is not limited to, water, ethylene glycol, or an environmentally friendly refrigerant, including, but not limited to, difluoromethane, tetrafluoroethane, pentafluoroethane, propane, or any combination thereof.

[0040] In some embodiments, the surface cooler 13 is further provided with a rear-mounted surface cooling water baffle 131, which intercepts condensed water from the surface cooler to separate air and condensed water. In practical applications, the surface cooling water baffle 131 can employ, for example, a serpentine structure. Such serpentine structures typically employ a V- or W-shaped structure, with the spacing between the baffles appropriately adjusted based on resistance requirements. The surface cooling water baffle 131 can be made, for example, of aluminum, stainless steel, or PVC.

[0041] Simply utilizing the surface cooler to absorb heat and cool the air to precipitate condensed water requires increasing the cooling capacity of the surface cooler to achieve a large dehumidification capacity, resulting in high energy consumption.

[0042] For this reason, Figure 1 As shown, the box 10 is additionally provided with a dehumidification heat pipe assembly 14. Figure 2 , which is a schematic structural diagram of a dehumidification heat pipe assembly in one embodiment.

[0043] Combine Figure 1 and Figure 2 The dehumidification heat pipe assembly 14 is arranged around the surface cooler 13, and the dehumidification heat pipe assembly 14 includes a heat recovery pre-cooling part 141 located before the surface cooler 13 (closer to the fresh air inlet 111), a heat recovery reheating part 143 located after the surface cooler 13 (closer to the fresh air supply port 191), and a connecting part 142 connecting the heat recovery pre-cooling part 141 and the heat recovery reheating part 143.

[0044] In certain embodiments, the dehumidification heat pipe assembly 14 employs a multi-layer heat circuit structure, which is arranged in the heat recovery pre-cooling section 141 and the heat recovery reheating section 143. Specifically, the dehumidification heat pipe assembly 14 may include a heat pipe frame, within which a multi-layer heat pipe circuit structure is arranged. The multi-layer heat pipe circuit structure may be arranged in the heat recovery pre-cooling section 141 and extended into the heat recovery reheating section 143 via a connection portion 142. The multi-layer heat pipe circuit structure typically includes heat sink fins and a dehumidification heat pipe circuit interspersed through the heat sink fins, which meanders in a circuitous manner. Coolant may be injected into the dehumidification heat pipe. In certain embodiments, the multi-layer heat pipe circuit structure may include aluminum fins and a copper pipe circuit interspersed through the aluminum fins, which meanders in a U-shaped manner. Of course, the heat sink fins may also be stainless steel fins, copper fins, etc., and the copper pipe circuit may also be a steel pipe circuit, stainless steel circuit, etc. The refrigerant flowing through the copper tube loop includes but is not limited to difluoromethane, tetrafluoroethane, pentafluoroethane, propane, or any combination thereof.

[0045] In certain embodiments, the dehumidification heat pipe assembly 14 includes a first multi-layer heat circuit structure arranged in the heat recovery pre-cooling part and a second multi-layer heat circuit structure arranged in the heat recovery reheating part. Specifically, the dehumidification heat pipe assembly 14 may include a heat pipe frame, and the first multi-layer heat circuit structure is arranged in the space of the heat recovery pre-cooling part 141 within the heat pipe frame, and the second multi-layer heat circuit structure is arranged in the space of the heat recovery reheating part 143 within the heat pipe frame. The first multi-layer heat circuit structure and the second multi-layer heat circuit structure are connected by a pipe arranged in the space of the connecting part within the heat pipe frame.

[0046] The first multi-layer heat pipe loop structure generally includes heat sink fins and a dehumidification heat pipe loop that is interspersed on the heat sink fins and is bent in a circuitous manner. A refrigerant can be injected into the dehumidification heat pipe. In certain embodiments, the first multi-layer heat pipe loop structure may include aluminum fins and a copper pipe loop that is interspersed on the aluminum fins and is bent in a U-shape. Of course, the heat sink fins may also be made of stainless steel fins, copper fins, etc., and the copper pipe loop may also be made of steel pipe loop, stainless steel loop, etc. The refrigerant flowing through the copper pipe loop includes but is not limited to difluoromethane, tetrafluoroethane, pentafluoroethane, propane, or any combination thereof. Similarly, the second multi-layer heat pipe loop structure generally includes heat sink fins and a dehumidification heat pipe loop that is interspersed on the heat sink fins and is bent in a circuitous manner. A coolant can be injected into the dehumidification heat pipe. In certain embodiments, the second multi-layer heat pipe loop structure may include aluminum fins and a copper pipe loop interspersed with the aluminum fins in a U-shaped meander. Alternatively, the heat dissipation fins may be stainless steel fins, copper fins, etc., and the copper pipe loop may be a steel pipe loop, stainless steel loop, etc. The refrigerant flowing through the copper pipe loop includes, but is not limited to, difluoromethane, tetrafluoroethane, pentafluoroethane, propane, or any combination thereof.

[0047] Through the coordinated use of the dehumidification heat pipe assembly 14 and the surface cooler 13, the air entering the box 10 first enters the heat recovery pre-cooling section 141 in the dehumidification heat pipe assembly 14. The refrigerant in the multi-layer heat circuit structure in the heat recovery pre-cooling section 141 absorbs heat and pre-cools the air, completing the initial heat and moisture exchange and initially reducing the temperature and humidity of the air. Subsequently, the air output by the heat recovery pre-cooling section 141 passes through the surface cooler 13 to absorb heat and cool the air to precipitate condensed water. Thereafter, the air output by the surface cooler 13 is heated by the heat recovery reheating section 143 in the dehumidification heat pipe assembly 14 to form air with a suitable temperature and low humidity.

[0048] The fan flow balancing component 15 includes a fan 151 and a motor 152. The motor 152 is used to drive the fan 151. The fan 152 and the motor 152 can be driven by a belt or directly connected.

[0049] Furthermore, in certain embodiments, Figure 1As shown, the fan flow balancing assembly 15 also includes a flow balancing device 153. That is, the flow balancing device 153 can be further provided after the fan 151 and the motor 152. The fan flow balancing assembly 15 drives the air heated by the dehumidification heat pipe assembly 14 through the flow balancing device 153 and then flows to the post-filter assembly 16. The flow balancing device 153 decelerates and diffuses the concentrated, high-speed airflow from the fan, thereby evenly distributing it to the post-filter assembly and thoroughly purifying the air. In actual applications, the flow balancing device can be a device with regularly or irregularly arranged diversion holes.

[0050] The post-filter assembly 16 performs post-filtering on the air that has completed the dehumidification treatment before it is supplied. In certain embodiments, the post-filter assembly 16 may include a high efficiency filter, a sub-high efficiency filter, an activated carbon filter, an electronic purification filter, or an ozone generator.

[0051] When the fresh air dehumidification and purification air-conditioning unit provided by the present invention is applied, first, the outdoor high-temperature and high-humidity air is driven by the air inlet valve and enters the box body 10 from the fresh air inlet 111, and is pre-filtered by the pre-filter component and then enters the heat recovery pre-cooling part 141 in the dehumidification heat pipe component 14. The high-temperature and high-humidity air completes the initial heat and moisture exchange with the multi-layer heat circuit structure in the heat recovery pre-cooling part 141, and initially reduces the temperature and humidity of the air. Subsequently, the heat recovery pre-cooling part 141 is cooled by the surface cooler 13. The air output by 141 that has been preliminarily cooled and dehumidified absorbs heat and cools, condenses water and forms low-temperature and low-humidity air. After that, the heat recovery and reheating part 143 in the dehumidification heat pipe assembly 14 heats the low-temperature and low-humidity air output by the surface cooler 13 to form air with a suitable temperature and low humidity. Finally, the air with a suitable temperature and low humidity passes through the flow balancing device 153 and the post-filtration treatment of the post-filter assembly 16, and is driven by the air supply valve 192 to be delivered from the fresh air supply port 191.

[0052] The fresh air dehumidification and purification air conditioning unit provided by the present disclosure includes: a housing, a fresh air inlet and an air inlet valve, a fresh air supply outlet and an air supply valve, a filter assembly located between the air inlet valve and the air supply valve, a surface cooler and a dehumidification heat pipe assembly, a fan flow equalization assembly, and a post-filter assembly, wherein the dehumidification heat pipe assembly includes a heat recovery pre-cooling section located before the surface cooler, a heat recovery reheating section located after the surface cooler, and a connecting section connecting the heat recovery pre-cooling section and the heat recovery reheating section. The heat recovery pre-cooling section in the dehumidification heat pipe assembly is used to pre-cool the incoming air so that the pre-cooled air enters the surface cooler, and the heat recovery reheating section in the dehumidification heat pipe assembly is used to reheat the cold air output by the surface cooler. Compared with existing products, a greater dehumidification effect can be achieved without increasing the cooling capacity of the surface cooler, and energy loss can be reduced.

[0053] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, any equivalent modifications or alterations made by a person skilled in the art without departing from the spirit and technical concepts disclosed herein shall be encompassed by the scope of protection of this disclosure.

Claims

1. A fresh air dehumidification and purification air conditioning unit, characterized in that: include: The cooling fan has a first end which is provided with a first filter element and a second end which is provided with a second filter element.

2. The fresh air dehumidification and purification air conditioning unit according to claim 1, characterized in that: The dehumidification heat pipe in the dehumidification heat pipe assembly is filled with refrigerant.

3. The fresh air dehumidification and purification air conditioning unit according to claim 1, characterized in that: The dehumidification heat pipe is provided with heat dissipation fins.

4. The fresh air dehumidification and purification air conditioning unit according to claim 1, characterized in that: The pre-filter assembly includes a coarse-effect filter and a medium-effect filter arranged in front and behind, and the post-filter assembly includes a high-efficiency filter, a sub-high-efficiency filter, an activated carbon filter, an electronic purification filter, or an ozone generator.

5. The fresh air dehumidification and purification air conditioning unit according to claim 1, characterized in that: The fan flow balancing component includes a fan and a motor, and the motor drives the fan via a belt or directly drives the fan.

6. The fresh air dehumidification and purification air conditioning unit according to claim 5, characterized in that: The fan flow balancing component also includes a flow balancing device.

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