Phase-change heat exchange assembly and integrated range hood system

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to a phase-change heat exchange assembly and an integrated range hood system. The phase change heat exchange assembly comprises a phase change condenser, a phase change evaporator and a communicating assembly. A height difference exists between the phase change evaporator and the phase change condenser; the communicating assembly comprises a communicating plate, and a first circulating cavity, a second circulating cavity and a heat insulation layer which are arranged in the communicating plate; the heat insulation layer is arranged between the first circulation cavity and the second circulation cavity; the heat insulation layer comprises a vacuum cavity; the first circulation cavity is communicated between an outlet of the phase change evaporator and an inlet of the phase change condenser, and the second circulation cavity is communicated between an inlet of the phase change evaporator and an outlet of the phase change condenser, so that refrigerant circulation is achieved. The first circulation cavity and the second circulation cavity at least achieve heat insulation through the vacuum cavity, heat exchange between the hot fluid and the cold fluid is avoided, and therefore the temperature difference between the hot fluid and the cold fluid is prevented from becoming small, and the heat exchange effect of the whole phase change heat exchange assembly is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field especially is a kind of phase change heat transfer subassembly and integrated range hood system. BACKGROUND

[0002] Traditional kitchen air conditioners mostly do not have fresh air function, the main limiting reason is that in winter cooking, outdoor temperature is usually lower than indoor temperature, directly introducing outdoor air can cause indoor temperature to drop, thereby causing human discomfort. The kitchen air conditioner with fresh air function needs to increase electric auxiliary heating to heat fresh air, which consumes a lot of energy.

[0003] A phase change heat transfer subassembly is adopted, which includes an evaporator, a condenser and a circulating pipeline connected between the evaporator and the condenser. There is a height difference between the evaporator and the condenser. The evaporator can use the heat of the gas in the exhaust pipe to convert the refrigerant from liquid to gas, and the density of the refrigerant decreases, and enters the condenser through the circulating pipeline. The refrigerant changes from gas to liquid in the condenser, realizing heat release, thereby heating the surrounding air. At the same time, the refrigerant with increased density enters the evaporator again through the circulating pipeline, and the cycle continues. The phase change heat transfer subassembly uses the heat of the gas in the exhaust pipe to heat the fresh air, recycles energy, reduces power consumption, and is beneficial to environmental protection. Further, a communication assembly is used instead of a circulating pipeline to communicate between the evaporator and the condenser. The communication assembly can guide the flow of gas. Specifically, the communication assembly includes a communication plate, a cavity is provided in the communication plate, a partition is provided in the cavity, and the partition divides the cavity into a first refrigerant flow cavity and a second refrigerant flow cavity. The first refrigerant cavity is connected between the outlet of the evaporator and the inlet of the condenser, and the second refrigerant cavity is connected between the inlet of the evaporator and the outlet of the condenser. The problem is that the temperature of the refrigerant in the first refrigerant flow cavity is different from that of the refrigerant in the second refrigerant flow cavity, which can cause heating, thereby reducing the temperature difference between the refrigerant entering the evaporator and the refrigerant entering the condenser, and further affecting the overall heat exchange effect of the phase change heat transfer subassembly. SUMMARY

[0004] The utility model aims at providing a phase change heat transfer subassembly and integrated range hood system to solve the technical problem of poor overall heat exchange effect of the phase change heat transfer subassembly in related technology to some extent.

[0005] The utility model provides a kind of phase change heat transfer assembly, comprising: phase change condenser, phase change evaporator and intercommunication component;There is height difference between the phase change evaporator and the phase change condenser;The intercommunication component includes intercommunication plate and first flow-through cavity, second flow-through cavity and heat insulation layer being arranged in the intercommunication plate;The heat insulation layer is arranged between the first flow-through cavity and the second flow-through cavity;The heat insulation layer includes vacuum cavity;The first flow-through cavity is communicated between the outlet of the phase change evaporator and the inlet of the phase change condenser, and the second flow-through cavity is communicated between the inlet of phase change evaporator and the outlet of the phase change condenser, to form complete refrigerant flow circulation loop.

[0006] Further, the two sides of the vacuum cavity completely cover the first flow-through cavity and the second flow-through cavity respectively.

[0007] Further, in the thickness direction of the intercommunication plate, the first flow-through cavity, the heat insulation layer and the second flow-through cavity are stacked.

[0008] As an optional solution, the heat insulation layer includes a plurality of mutually isolated vacuum cavities, and the plurality of vacuum cavities are sequentially arranged in the thickness direction of the intercommunication plate.

[0009] As an optional solution, the heat insulation layer includes a plurality of mutually isolated vacuum cavities, and the plurality of vacuum cavities are sequentially arranged in the extension direction of the intercommunication plate.

[0010] As an optional solution, the heat insulation layer includes a plurality of mutually isolated vacuum cavities, and the plurality of vacuum cavities are sequentially arranged in the width direction of the intercommunication plate.

[0011] Further, a vacuum interface communicating with the vacuum cavity is provided on the intercommunication plate, and the vacuum interface is used to communicate with the suction end of the compressor.

[0012] Further, the phase change heat transfer assembly further includes a vacuum extraction pipeline, the vacuum extraction pipeline communicates with the vacuum interface;A pressure detection element for detecting the pressure in the vacuum cavity and an electric control valve are provided on the vacuum extraction pipeline, and the pressure detection element is communicatively connected with the electric control valve;The vacuum extraction pipeline is used to communicate with the suction end of the compressor.

[0013] Further, the intercommunication plate, the first flow-through cavity, the second flow-through cavity and the heat insulation layer are all arranged in arc shape.

[0014] The utility model further provides a kind of integrated range hood system, comprising air conditioner module and above-mentioned phase change heat transfer assembly, the air conditioner module is arranged in heat exchange cavity, and the air conditioner module includes compressor, and the compressor communicates with the vacuum cavity.

[0015] Compared with the prior art, the utility model has the beneficial effects mainly in that

[0016] The refrigerant realizes circulation through the communicating assembly, the communicating plate, the first flow cavity and the second flow cavity are provided with the heat insulation layer, the heat insulation layer comprises a vacuum cavity, that is, the first flow cavity and the second flow cavity realize heat insulation through the vacuum cavity at least, avoid the heat exchange of hot fluid and cold fluid, thereby avoiding the temperature difference of hot fluid and cold fluid to be small, and the heat exchange effect of the whole phase change heat exchange assembly is beneficial to guarantee.

[0017] It should be understood that both the foregoing general description and the following detailed description are intended for purposes of illustration and description only and are not intended to limit the disclosure. The accompanying drawings are incorporated in and constitute a part of the specification. Furthermore, the description and drawings are to be construed together with the claims to explain the principles of the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is the structure schematic view of the phase change heat exchange assembly of the utility model embodiment;

[0020] Figure 2 It is the structure schematic view of the phase change heat exchange assembly of the utility model embodiment; Figure 1 It is the structure schematic view of the first visual angle of the communicating assembly in the phase change heat exchange assembly;

[0021] Figure 3 It is the structure schematic view of the second visual angle of the communicating assembly in the phase change heat exchange assembly. Figure 1

[0022] Icon:

[0023] 100-phase change heat exchange assembly;

[0024] 110-phase change condenser;

[0025] 120-phase change evaporator;

[0026] 130-communicating assembly;131-communicating plate;132-first flow cavity;133-second flow cavity;134-vacuum cavity;135-vacuum interface;136-vacuum pipeline;137-electric control valve;138-pressure detection element;

[0027] ​200 - compressor. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application.

[0029] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0030] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative labor fall within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0033] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] For example, the term "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Figures 1 to 3As shown, the utility model provides a kind of phase change heat transfer assembly 100, comprising: phase change condenser 110, phase change evaporator 120 and intercommunication component 130;Phase change evaporator 120 and phase change condenser 110 between height difference;Intercommunication component 130 includes intercommunication plate 131 and the first flow-through cavity 132, second flow-through cavity 133 and heat insulation layer being arranged in intercommunication plate 131;Heat insulation layer is arranged between the first flow-through cavity 132 and the second flow-through cavity 133;Heat insulation layer includes vacuum cavity 134;The first flow-through cavity 132 is connected between the outlet of phase change evaporator 120 and the inlet of phase change condenser 110, and the second flow-through cavity 133 is connected between the inlet of phase change evaporator 120 and the outlet of phase change condenser 110, to form complete refrigerant flow circulation loop.

[0035] In the embodiment, the refrigerant is converted from liquid state to gaseous state in phase change evaporator 120, the density of refrigerant is reduced, and enters phase change condenser 110 through first flow-through cavity 132;The refrigerant is converted from gaseous state to liquid state in phase change condenser 110, the density of refrigerant is increased and re-enters phase change evaporator 120 through second flow-through cavity 133, and so on.Circulation can be understood, phase change condenser 110 is arranged higher than phase change evaporator 120.The refrigerant temperature of first flow-through cavity 132 is higher than the refrigerant temperature of second flow-through cavity 133, and compared with, the first flow-through cavity 132 flows hot fluid, and the second flow-through cavity 133 flows cold fluid.Refrigerant realizes circulation through intercommunication component 130, and heat insulation layer is arranged between the first flow-through cavity 132 and the second flow-through cavity 133 in intercommunication plate 131, and heat insulation layer includes vacuum cavity 134, that is, first flow-through cavity 132 and second flow-through cavity 133 are at least heat insulated through vacuum cavity 134, avoid heat exchange between hot fluid and cold fluid, to avoid that the temperature difference of hot fluid and cold fluid becomes small, is favorable to guarantee the heat exchange effect of entire phase change heat transfer assembly 100.In addition, heat insulation is realized using vacuum cavity 134, simple structure, convenient processing, and convenient to keep heat insulation effect.

[0036] Wherein, vacuum cavity 134 can only cover part of first flow-through cavity 132 and second flow-through cavity 133.

[0037] As an optional solution, the two sides of vacuum cavity 134 completely cover first flow-through cavity 132 and second flow-through cavity 133 respectively, that is, vacuum cavity 134 completely isolates first flow-through cavity 132 and second flow-through cavity 133, more capable of guaranteeing heat insulation effect, more capable of avoiding heat exchange between hot fluid and cold fluid.

[0038] On the basis of above embodiment, further, first flow-through cavity 132, vacuum cavity 134 and second flow-through cavity 133 can be sequentially arranged in the width direction of intercommunication plate 131.

[0039] As an optional solution, as shown in Figure 6, Figure 2 andFigure 3 As shown, in the thickness direction of the connecting plate 131, the first flow cavity 132, the heat insulation layer and the second flow cavity 133 are stacked. This arrangement can achieve a flat shape of the connecting plate 131, which can increase the flow cross-section of the first flow cavity 132 and the flow cross-section of the second flow cavity 133, thereby reducing the fluid flow resistance.

[0040] The number of vacuum chambers 134 can be one.

[0041] The number of vacuum chambers 134 can also be multiple, and the multiple vacuum chambers 134 are set independently of each other, so that when one vacuum chamber 134 leaks and is filled with gas, the other vacuum chambers 134 can still maintain the corresponding vacuum level and maintain a certain heat insulation effect.

[0042] In this configuration, multiple vacuum chambers 134 are arranged sequentially in the thickness direction of the connecting plate 131. That is, the first flow chamber 132, the multiple vacuum chambers 134, and the second flow chamber 133 are stacked in the thickness direction of the connecting plate 131.

[0043] Alternatively, multiple vacuum chambers 134 are sequentially arranged in the extending direction of the connecting plate 131, and the multiple vacuum chambers 134 arranged in the extending direction isolate the first flow chamber 132 and the second flow chamber 133.

[0044] Alternatively, multiple vacuum chambers 134 are sequentially arranged in the width direction of the connecting plate 131, and the multiple vacuum chambers 134 sequentially arranged in the width direction of the connecting plate 131 separate the first flow chamber 132 and the second flow chamber 133.

[0045] Alternatively, multiple vacuum cavities 134 can be provided in both the thickness and extension directions of the connecting plate 131; or, multiple vacuum cavities 134 can be provided in both the thickness and width directions of the connecting plate 131; or, multiple vacuum cavities 134 can be provided in both the extension and width directions of the connecting plate 131; or, multiple vacuum cavities 134 can be provided in all three directions of the connecting plate 131. In this way, the multiple vacuum cavities 134 form a grid-like heat insulation layer.

[0046] like Figure 1 As shown, based on any of the above embodiments, the connecting plate 131 is further provided with a vacuum interface 135 that communicates with the vacuum chamber 134. The vacuum interface 135 is used to communicate with the suction end of the compressor 200.

[0047] In this embodiment, the vacuum interface 135 is connected to the compressor 200, and the vacuum chamber 134 can be evacuated by the compressor 200, thereby enabling the vacuum chamber 134 to maintain a vacuum level that meets the heat insulation requirements.

[0048] The vacuum cavity 134 can be pumped by the compressor 200 at an interval set time.

[0049] As an optional solution, as shown in Figure 1 The phase change heat exchange assembly 100 further comprises a vacuum pumping pipe 136 in communication with the vacuum interface 135, and the vacuum pumping pipe 136 is provided with an electric control valve 137 and a pressure detection element 138 for detecting the pressure in the vacuum cavity 134, and the pressure detection element 138 is in communication connection with the electric control valve 137.

[0050] In the embodiment, the pressure in the vacuum cavity 134 can be monitored in real time by the pressure detection element 138 (for example, a pressure sensor), and when the absolute value of the negative pressure is higher than a set value, the electric control valve 137 is automatically closed, and when the absolute value of the negative pressure is lower than the set value, the electric control valve 137 is automatically opened, and the negative pressure suction of the compressor 200 is used to continue to pump the vacuum until the absolute value of the negative pressure is higher than the set value. Through the real-time monitoring of the pressure in the vacuum cavity 134 by the pressure detection element 138, the vacuum cavity 134 can be pumped in time, so that a better heat insulation effect can be maintained at all times.

[0051] The compressor 200 can be independently configured for the vacuum cavity 134. Alternatively, the compressor 200 in the air conditioning module in the integrated extractor hood system can also serve as the compressor 200 in communication with the vacuum pumping pipe 136, so that the number of components of the integrated extractor hood system can be reduced, and the structure of the kitchen air management system is simple and compact.

[0052] On the basis of the above embodiment, the structure of the communication plate 131 can be various, for example, the communication plate 131 is in a straight line type or a wave shape, and the first flow-through cavity 132 and the second flow-through cavity 133 have the same shape as the communication plate 131.

[0053] As an optional solution, as shown in Figures 1 to 3 The communication plate 131, the first flow-through cavity 132, the second flow-through cavity 133 and the heat insulation layer are all arranged in an arc shape, so that the communication plate 131 can better guide the heat exchange gas.

[0054] The utility model also provides an integrated extractor hood system, including air conditioning module and the phase change heat exchange assembly 100 of any one of the technical solutions, air conditioning module sets up in heat exchange cavity, and air conditioning module includes compressor 200, and compressor 200 communicates with vacuum cavity 134.

[0055] The integrated extractor hood system provided in the embodiment comprises the phase change heat exchange assembly 100 of any one of the above technical solutions, and thus comprises all the beneficial effects of the phase change heat exchange assembly 100, which will not be repeated here.

[0056] The vacuum cavity 134 is evacuated and the air conditioning module shares a compressor 200, thereby reducing the number of components of the integrated extractor hood system, resulting in a simple and compact structure of the kitchen air management system.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not described in detail in order not to obscure the understanding of the present specification. In addition, those skilled in the art can understand that although some embodiments herein include some features included in other embodiments but not others, the combination of features of different embodiments means to be within the scope of the present application and forms different embodiments.

Claims

1. A phase change heat exchange component, characterized in that, include: A phase change condenser (110), a phase change evaporator (120), and a connecting assembly (130); there is a height difference between the phase change evaporator (120) and the phase change condenser (110); The connecting component (130) includes a connecting plate (131) and a first flow cavity (132), a second flow cavity (133) and a heat insulation layer disposed within the connecting plate (131); the heat insulation layer is disposed between the first flow cavity (132) and the second flow cavity (133); the heat insulation layer includes a vacuum cavity (134). The first flow chamber (132) is connected between the outlet of the phase change evaporator (120) and the inlet of the phase change condenser (110), and the second flow chamber (133) is connected between the inlet of the phase change evaporator (120) and the outlet of the phase change condenser (110) to form a complete refrigerant flow loop.

2. The phase change heat exchanger assembly according to claim 1, characterized in that, The vacuum cavity (134) completely covers the first flow cavity (132) and the second flow cavity (133) on both sides respectively.

3. The phase change heat exchanger assembly according to claim 1, characterized in that, In the thickness direction of the connecting plate (131), the first flow cavity (132), the heat insulation layer and the second flow cavity (133) are stacked.

4. The phase change heat exchanger assembly according to claim 3, characterized in that, The heat insulation layer includes a plurality of mutually isolated vacuum chambers (134), which are arranged sequentially in the thickness direction of the connecting plate (131).

5. The phase change heat exchanger assembly according to claim 3, characterized in that, The heat insulation layer includes a plurality of mutually isolated vacuum chambers (134), which are arranged sequentially in the extension direction of the connecting plate (131).

6. The phase change heat exchanger assembly according to claim 3, characterized in that, The heat insulation layer includes a plurality of mutually isolated vacuum chambers (134), which are arranged sequentially in the width direction of the connecting plate (131).

7. The phase change heat exchanger assembly according to any one of claims 1-6, characterized in that, The connecting plate (131) is provided with a vacuum interface (135) that communicates with the vacuum chamber (134), and the vacuum interface (135) is used to communicate with the suction end of the compressor (200).

8. The phase change heat exchanger assembly according to claim 7, characterized in that, The phase change heat exchange assembly also includes a vacuum pipe (136), which is connected to the vacuum interface (135); the vacuum pipe (136) is provided with an electric control valve (137) and a pressure detection element (138) for detecting the pressure inside the vacuum chamber (134), and the pressure detection element (138) is communicatively connected to the electric control valve (137); the vacuum pipe (136) is used to connect to the suction end of the compressor (200).

9. The phase change heat exchanger assembly according to claim 1, characterized in that, The connecting plate (131), the first flow cavity (132), the second flow cavity (133) and the heat insulation layer are all arranged in an arc shape.

10. An integrated range hood system, characterized in that, The device includes an air conditioning module and a phase change heat exchange assembly as described in any one of claims 1-9. The air conditioning module is disposed in a heat exchange chamber and includes a compressor (200) connected to the vacuum chamber (134).

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