Refrigeration dehumidifier
By increasing the number of evaporative heat exchange tubes and using reversing valves for control, the problem of frequent defrosting in low-temperature environments for refrigeration dehumidifiers has been solved, achieving efficient dehumidification and low energy consumption.
Patent Information
- Application Number
- CN202423105275.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing refrigeration dehumidifiers frequently enter defrosting mode in low-temperature environments, resulting in low working efficiency, and the cost of defrosting using rotary or solution dehumidification equipment is high.
A refrigeration dehumidifier was designed by increasing the number of evaporator heat exchange tubes to increase the heat exchange area and lower the frost point temperature. When defrosting is required, the refrigerant flow is switched to the evaporator through a reversing valve to perform defrosting, thus avoiding the use of rotary or solution equipment.
It achieves efficient dehumidification in low-temperature environments, reduces energy consumption and equipment costs, and avoids the problem of frequent defrosting.
Smart Images
Figure CN223512206U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of refrigeration dehumidification, especially to a refrigeration dehumidifier. BACKGROUND
[0002] The refrigeration dehumidifier is an air treatment device, which condenses water vapor in the air into liquid water by cooling to reduce air humidity. The device is composed of a fluorine system, a wind system, a water system and an electrical control system. The refrigerant in the fluorine system realizes heat release and absorption through two phase changes of liquefaction and gasification in the condenser and the evaporator to provide heat and cold to the passing air. The humid air in the environment is cooled to below the dew point by the evaporator under the action of the fan to condense water and become low-temperature and low-humidity air, and then is heated by the condenser to become high-temperature and low-humidity air and is discharged to the environment. The condensate water of the evaporator enters the water collector under the action of gravity and is discharged from the pipeline by gravity or a water pump, so as to continuously reduce the air humidity.
[0003] The conventional dehumidifier is designed according to the national standard working condition (27℃60%), and is suitable for the temperature range of 5℃~32℃. However, it frequently enters the defrosting state in the environment of 5℃~20℃, and then can dehumidify, so the working efficiency is very low. Especially in the low-temperature environment such as refrigerated warehouse and low-temperature greenhouse, it may be in the frosting state all the time and cannot dehumidify. Although the defrosting of the dehumidification equipment such as rotary wheel or solution can be used in these scenes, the energy consumption and equipment cost of this kind of equipment are very high, so it is necessary to develop a refrigeration dehumidifier which can dehumidify stably and efficiently in the environment of 5~20℃ with low energy consumption and low equipment cost. SUMMARY
[0004] The utility model aims at providing a refrigeration dehumidifier to solve the technical problems of high frost point of the dehumidifier, easy entering of the defrosting state and high cost of the defrosting of the dehumidification equipment such as rotary wheel or solution in the prior art.
[0005] The refrigeration dehumidifier provided by the utility model comprises an equipment main body, a heat exchanger and a compressor.
[0006] The equipment main body has a heat exchange cavity and an electrical cavity.
[0007] The heat exchanger is arranged in the heat exchange cavity, and comprises an evaporator and a condenser. The evaporator has a plurality of evaporative heat exchange pipes, and the condenser has a plurality of condensing heat exchange pipes. The number ratio of the evaporative heat exchange pipes to the condensing heat exchange pipes is 3:1.
[0008] The compressor is arranged in the electrical cavity, and is communicated with the evaporator and the condenser through a reversing valve. The reversing valve is used for controlling the flow direction of the refrigerant in the compressor to the evaporator or the condenser.
[0009] In an optional embodiment,
[0010] The evaporator has multiple rows of the evaporative heat exchange pipes arranged side by side.
[0011] The condenser has multiple rows of the condensing heat exchange pipes arranged side by side.
[0012] In an optional embodiment,
[0013] The evaporative heat exchange pipes in the evaporator are arranged side by side as six rows.
[0014] The condensing heat exchange pipes in the condenser are arranged side by side as two rows.
[0015] In an optional embodiment,
[0016] The refrigerating dehumidifier further comprises a condensing air inlet pipe and an evaporating air outlet pipe.
[0017] One end of the condensing air inlet pipe is connected with the condenser, and the other end of the condensing air inlet pipe is communicated with the reversing valve.
[0018] One end of the evaporating air outlet pipe is connected with the evaporator, and the other end of the evaporating air outlet pipe is communicated with the reversing valve.
[0019] In an optional embodiment,
[0020] The compressor is communicated with an air outlet pipe and an air inlet pipe.
[0021] One end of the air outlet pipe away from the compressor is communicated with the reversing valve.
[0022] One end of the air inlet pipe away from the compressor is communicated with the reversing valve.
[0023] In an optional embodiment,
[0024] The refrigerating dehumidifier further comprises a water collecting tray.
[0025] The water collecting tray is located in the middle part of the equipment body, so that the water collecting tray divides the internal space of the equipment body into the heat exchange cavity and the electrical appliance cavity, and the heat exchange cavity is located above the electrical appliance cavity.
[0026] In an optional embodiment,
[0027] The evaporator and the condenser are arranged on the water collecting tray.
[0028] In an optional embodiment,
[0029] The water collecting tray is concave downward to form a water collecting groove, the bottom of the water collecting groove is connected with a drain pipe, and liquid in the water collecting groove is discharged through the drain pipe.
[0030] In an optional embodiment,
[0031] The water collecting tray is provided with a wind baffle;
[0032] The evaporator and the condenser are located above the water collecting groove;
[0033] The wind baffle covers the opening of the water collecting groove which is not shielded by the evaporator and the condenser.
[0034] In an optional embodiment,
[0035] The refrigeration dehumidifier further comprises a fan component;
[0036] The fan component is arranged in the heat exchange cavity, and the fan component is arranged as a centrifugal fan with a brushless direct-current outer rotor motor.
[0037] The refrigeration dehumidifier provided by the utility model, since the number of evaporation heat exchange pipes is three times that of condensation heat exchange pipes, the heat exchange area of the evaporator is increased, thereby the evaporation temperature is improved, and the frost point temperature is reduced, and the compressor is communicated with the evaporator and the condenser through a reversing valve, when defrosting is needed, the reversing valve is switched to the evaporator to pass in refrigerant, the evaporator is condensed and heated, defrosting operation can be realized, thereby the use of a rotary wheel or a solution and other dehumidification equipment is avoided, energy consumption and equipment cost are effectively reduced, and the technical problems that the frost point of the dehumidifier is high, defrosting state is easily entered, and the defrosting cost of the dehumidification equipment such as a rotary wheel or a solution is high in the prior art are solved. BRIEF DESCRIPTION OF DRAWINGS
[0038] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.
[0039] Figure 1 The internal structure schematic diagram of the refrigeration dehumidifier provided by the utility model embodiment is shown in the figure.
[0040] Figure 2 The structure schematic diagram of the refrigeration dehumidifier under the first visual angle provided by the utility model embodiment is shown in the figure.
[0041] Figure 3 The structure schematic diagram of the water collecting tray and the wind baffle in the refrigeration dehumidifier provided by the utility model embodiment is shown in the figure.
[0042] Figure 4 The structural schematic diagram of the refrigeration dehumidifier under the second visual angle is provided for the embodiments of the present application.
[0043] Figure 5 The overall structural schematic diagram of the refrigeration dehumidifier is provided for the embodiments of the present application.
[0044] Icon: 100 - device main body; 110 - heat exchange cavity; 120 - electric appliance cavity; 200 - heat exchanger; 210 - evaporator; 211 - evaporated gas pipe; 220 - condenser; 221 - condensing gas inlet pipe; 300 - compressor; 310 - exhaust pipe; 320 - suction pipe; 400 - reversing valve; 500 - water receiving tray; 510 - water receiving groove; 520 - drain pipe; 530 - wind shield; 600 - fan; 700 - electric control device; 800 - liquid storage tank. DETAILED DESCRIPTION
[0045] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0046] 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", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0047] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0048] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.
[0049] As Figure 1 , Figure 2 , Figure 4 and Figure 5 indicate, wherein the first view angle is a side view angle, and the second view angle is a front view angle, the refrigeration dehumidifier provided by the embodiment comprises: a device main body 100, a heat exchanger 200, and a compressor 300; the device main body 100 is of a box type structure, has an air inlet and an air outlet, and has a heat exchange cavity 110 and an electrical cavity 120 in the device main body 100; an electrical control device 700 is installed in the electrical cavity 120, and is used for controlling the work of various components.
[0050] The heat exchanger 200 is arranged in the heat exchange cavity 110, and the heat exchanger 200 comprises an evaporator 210 and a condenser 220; the evaporator 210 has a plurality of evaporative heat exchange pipes, and the condenser 220 has a plurality of condensing heat exchange pipes; the number ratio of the evaporative heat exchange pipes to the condensing heat exchange pipes is 3:1, so that the heat exchange area of the evaporator 210 is increased, the evaporation temperature is improved, and the frost point temperature is reduced.
[0051] The compressor 300 is arranged in the electrical cavity 120, and the compressor 300 is communicated with the evaporator 210 and the condenser 220 through a reversing valve 400; the reversing valve 400 is used for controlling the flow direction of the refrigerant in the compressor 300 to the evaporator 210 or the condenser 220; when defrosting is needed, the reversing valve 400 is switched to a state of introducing the refrigerant into the evaporator 210, the refrigerant in the compressor 300 flows into the evaporator 210, the condenser generates heat, and the defrosting operation is completed by using the heat; in a normal state, the reversing valve 400 is switched to a normal state, that is, the refrigerant in the compressor 300 flows to the condenser 220, the high-temperature and high-pressure gaseous refrigerant from the compressor 300 enters the condenser 220, the refrigerant in the condenser 220 releases heat to the surrounding environment, and the cooled refrigerant becomes liquid; this process is accompanied by the decrease of the refrigerant temperature and the change of the state, that is, the high-temperature and high-pressure gas is changed into low-temperature and high-pressure liquid; at this time, the refrigerant in the evaporator 210 absorbs the heat of the surrounding environment, so that the temperature of the surrounding environment is reduced, and the evaporated refrigerant is then sent back to the compressor 300 to start a new cycle.
[0052] In an optional embodiment, the refrigeration dehumidifier further comprises a fan 600 component; the fan 600 component is arranged in the heat exchange cavity 110, and the fan 600 component is arranged as a centrifugal fan 600 with a brushless direct-current outer rotor motor; the fan 600 component is selected to have a large power, so that the air inlet amount of the evaporator 210 is increased, and the evaporation temperature is improved.
[0053] The refrigeration dehumidifier provided by the embodiment increases the heat exchange area of the evaporator 210 by increasing the number of the evaporation heat exchange pipes to three times the number of the condensation heat exchange pipes, thereby increasing the evaporation temperature and reducing the frost point temperature, and the compressor 300 is communicated with the evaporator 210 and the condenser 220 through the reversing valve 400, when defrosting is needed, the reversing valve 400 is switched to the evaporator 210 to pass in the refrigerant, the evaporator 210 condenses heat, and the defrosting operation is realized, thereby avoiding the use of the dehumidification equipment such as the rotary wheel or solution, effectively reducing the energy consumption and equipment cost, and solving the technical problems of the high frost point of the dehumidifier, the easy entering of the defrosting state, and the high defrosting cost of the dehumidification equipment such as the rotary wheel or solution in the prior art.
[0054] On the basis of the above-mentioned embodiment, in the optional implementation, the evaporator 210 in the refrigeration dehumidifier provided by the embodiment has multiple rows of evaporation heat exchange pipes arranged side by side, and the condenser 220 has multiple rows of condensation heat exchange pipes arranged side by side, it should be noted that the height dimension of the evaporator 210 is the same as the height dimension of the condenser 220, and the condensation heat exchange pipes and the evaporation heat exchange pipes are all U-shaped pipes with the same shape and size, therefore, the number ratio of the evaporation heat exchange pipes to the condensation heat exchange pipes is the number ratio of the evaporation heat exchange pipes to the condensation heat exchange pipes.
[0055] In the optional implementation, the evaporation heat exchange pipes in the evaporator 210 are arranged side by side into six rows, and the condensation heat exchange pipes in the condenser 220 are arranged side by side into two rows, forming the arrangement mode of the number ratio of the evaporation heat exchange pipes to the condensation heat exchange pipes being 3:1.
[0056] In the optional implementation, the refrigeration dehumidifier further comprises a condensation air inlet pipe 221 and an evaporation air outlet pipe 211, one end of the condensation air inlet pipe 221 is connected with the condenser 220, the other end of the condensation air inlet pipe 221 is communicated with the reversing valve 400, one end of the evaporation air outlet pipe 211 is connected with the evaporator 210, the other end of the evaporation air outlet pipe 211 is communicated with the reversing valve 400, and the refrigerant in the compressor 300 is switched into the condensation air inlet pipe 221 or the evaporation air outlet pipe 211 through the reversing valve 400.
[0057] In the optional implementation, the compressor 300 is communicated with an exhaust pipe 310 and a suction pipe 320, one end of the exhaust pipe 310 far from the compressor 300 is communicated with the reversing valve 400, one end of the suction pipe 320 far from the compressor 300 is communicated with the reversing valve 400, the suction pipe 320 is used to suck the gas into the inside of the compressor 300, and the exhaust pipe 310 is used to exhaust the high-pressure gas in the compressor 300, in addition, the reversing valve 400 is a four-way reversing valve 400, and the reversing valve 400 is connected with the condensation air inlet pipe 221, the evaporation air outlet pipe 211, the exhaust pipe 310 and the suction pipe 320.
[0058] In an optional embodiment, a liquid storage tank 800 is also provided in the electrical cavity 120. The liquid storage tank 800 is connected to the evaporator 210 and the condenser 220 respectively, and can store the refrigerant or other working medium of the system.
[0059] like Figure 3 As shown, in an optional embodiment, the refrigeration dehumidifier further includes a water collection tray 500; the water collection tray 500 is located in the middle of the equipment body 100, so that the water collection tray 500 divides the internal space of the equipment body 100 into a heat exchange chamber 110 and an electrical cavity 120, with the heat exchange chamber 110 located above and the electrical cavity 120 located below.
[0060] In an optional embodiment, both the evaporator 210 and the condenser 220 are mounted on the drip tray 500 to facilitate the condensate falling into the drip tray 500.
[0061] In an optional embodiment, the water receiving tray 500 is recessed to form a water receiving trough 510, and a drain pipe 520 is connected to the bottom of the water receiving trough 510. The liquid in the water receiving trough 510 is discharged through the drain pipe 520.
[0062] In an optional embodiment, the water receiving tray 500 is provided with a baffle plate 530; the evaporator 210 and the condenser 220 are located above the water receiving tank 510, and the installation position of the condenser 220 of the evaporator 210 will cover part of the opening of the water receiving tank 510, while the rest of the water receiving tank 510 is blocked by the baffle plate 530 to prevent the internal airflow from blowing up the liquid in the water receiving tank 510.
[0063] It should be noted that the evaporator 210 and condenser 220 do not completely block the opening of the water tank 510. Only the mounting brackets of the evaporator 210 and condenser 220 block the opening of the water tank 510. The area where the evaporator heat exchange tubes and condenser heat exchange tubes are located does not block the opening of the water tank 510, ensuring that the condensate on the heat exchange tubes can flow smoothly into the water tank 510.
[0064] The refrigeration dehumidifier provided by this utility model has the characteristics of low frost point and fast defrosting. Furthermore, due to the low frost point, the working time of the dehumidifier can be increased, thereby improving the energy efficiency of the dehumidifier.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A refrigeration dehumidifier characterized by comprising: The device body (100), a heat exchanger (200) and a compressor (300) are included. The device body (100) has a heat exchange cavity (110) and an electrical cavity (120) therein. The heat exchanger (200) is arranged in the heat exchange cavity (110), and the heat exchanger (200) includes an evaporator (210) and a condenser (220), the evaporator (210) has a plurality of evaporation heat exchange pipes, and the condenser (220) has a plurality of condensation heat exchange pipes, the number of the evaporation heat exchange pipes and the number of the condensation heat exchange pipes are in a ratio of 3:
1. The compressor (300) is arranged in the electrical cavity (120), and the compressor (300) is communicated with the evaporator (210) and the condenser (220) through a reversing valve (400), and the reversing valve (400) is used for controlling the refrigerant in the compressor (300) to flow to the evaporator (210) or to flow to the condenser (220).
2. The refrigeration dehumidifier according to claim 1, wherein The evaporator (210) has a plurality of rows of evaporation heat exchange pipes arranged side by side; The condenser (220) has a plurality of rows of condensation heat exchange pipes arranged side by side.
3. The refrigeration dehumidifier according to claim 2, wherein The evaporation heat exchange pipes in the evaporator (210) are arranged side by side as six rows; The condensation heat exchange pipes in the condenser (220) are arranged side by side as two rows.
4. The refrigeration dehumidifier according to claim 1, wherein The refrigeration dehumidifier further comprises a condensation inlet pipe (221) and an evaporation outlet pipe (211); One end of the condensation inlet pipe (221) is connected with the condenser (220), and the other end of the condensation inlet pipe (221) is communicated with the reversing valve (400); One end of the evaporation outlet pipe (211) is connected with the evaporator (210), and the other end of the evaporation outlet pipe (211) is communicated with the reversing valve (400).
5. The refrigeration dehumidifier according to claim 4, wherein The compressor (300) is communicated with an exhaust pipe (310) and a suction pipe (320); One end of the exhaust pipe (310) away from the compressor (300) is communicated with the reversing valve (400); One end of the suction pipe (320) away from the compressor (300) is communicated with the reversing valve (400).
6. The refrigeration dehumidifier according to claim 1, wherein The refrigeration dehumidifier further comprises a water pan (500); The water pan (500) is located in the middle of the device body (100), so that the water pan (500) divides the internal space of the device body (100) into the heat exchange cavity (110) and the electrical cavity (120), and the heat exchange cavity (110) is located above the electrical cavity (120).
7. The refrigeration dehumidifier according to claim 6, wherein The evaporator (210) and the condenser (220) are both arranged on the water pan (500). 8.The freeze dehumidifier according to claim 7, characterized in that, the water collecting tray (500) is concave downward to form a water collecting groove (510), and a drain pipe (520) is connected to the bottom of the water collecting groove (510), and the liquid in the water collecting groove (510) is discharged through the drain pipe (520). 9.The freeze dehumidifier according to claim 8, characterized in that, the water collecting tray (500) is provided with a wind baffle (530); the evaporator (210) and the condenser (220) are located above the water collecting groove (510); the wind baffle (530) covers the opening of the water collecting groove (510) which is not shielded by the evaporator (210) and the condenser (220). 10.The freeze dehumidifier according to any one of claims 1-9, characterized in that, the freeze dehumidifier further comprises a fan (600) component; the fan (600) component is arranged in the heat exchange cavity (110), and the fan (600) component is arranged as a centrifugal fan (600) with a brushless direct current outer rotor motor.