Water-cooled condensing device and rotary dehumidifier

Abstract

The utility model discloses a water-cooled condensing device and a rotary dehumidifier. The water-cooled condensing device comprises a condenser and a condenser, the inlet air distribution cavity comprises a first air inlet and a plurality of first air outlets; the condensate water collecting cavity comprises a second air outlet, a water outlet and a plurality of water inlets; the condensation pipe assembly comprises condensation pipes and surface cooling pipes which are arranged in pairs, the surface cooling pipes are arranged on the peripheries of the condensation pipes in a sleeving mode, so that a cooling space is formed between the outer walls of the condensation pipes and the inner walls of the surface cooling pipes, and a cooling liquid inlet and a cooling liquid outlet are formed in the cooling space; a plurality of condensation pipe assemblies are connected between the air inlet distribution cavity and the condensate water collection cavity, and the two opposite ends of each condensation pipe are connected with the first air outlet and the water inlet correspondingly. Cooling liquid is injected into the cooling space from the cooling liquid inlet, the cooling liquid flows out from the cooling liquid outlet and takes away heat entering the condensation pipe from the air inlet distribution cavity, high-temperature and high-humidity wet air is condensed into liquid in the condensation pipe, the specific heat capacity of the cooling liquid is higher than that of the air, and therefore the condensation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary dehumidification, and more particularly to a water-cooled condensing device and a rotary dehumidifier. Background Art

[0002] The dehumidification principle of the rotary dehumidifier is mainly based on the adsorbent in the adsorption zone of the rotor physically adsorbing the moisture in the air onto the adsorbent, and then using high-temperature regeneration air in the regeneration zone of the rotor to heat and vaporize the moisture adsorbed in the adsorbent to form high-temperature and high-humidity wet air that is directly discharged, or condensed into liquid water through a condensing device and discharged, thereby achieving the dehumidification function.

[0003] After searching, the utility models with application numbers 202222174091.3 and 202322657640.7 both disclose a condensing device and a rotary dehumidifier, in which the condenser tube assembly includes a first condenser tube with a smaller diameter and a second condenser tube with a larger diameter. When high-temperature and high-humidity humid air enters the condenser tube, the outside air contacts the outer wall of the condenser tube to dissipate heat, so that the high-temperature and high-humidity gas in the condenser tube can be quickly cooled down, and the moisture in the high-temperature and high-humidity gas can condense on the inner wall of the condenser tube, thereby realizing the dehumidification function.

[0004] However, the disadvantage of this condensing device is that it uses outside air to contact the outer wall of the condenser tube to dissipate heat. Since the specific heat capacity of air is relatively low (relative to the specific heat capacity of water, the specific heat capacity of air is about 1.4KJ / (kg·K), while the specific heat capacity of water is about 4.2KJ / (kg·K)), the low heat transfer efficiency will cause poor condensation effect, which will in turn affect the dehumidification effect of the rotary dehumidifier.

[0005] Therefore, how to provide a condensing device and a rotary dehumidifier with high heat transfer efficiency and good condensation effect has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The utility model aims to provide a water-cooled condensing device and a rotary dehumidifier with high heat transfer efficiency and good condensation effect.

[0007] A first aspect of the present invention provides a water-cooled condensing device, comprising an air inlet distribution chamber, a condensed water collection chamber, and a condensing pipe assembly;

[0008] The air inlet distribution cavity includes a first air inlet and a plurality of first air outlets;

[0009] The condensate collection chamber includes a second air outlet, a drain outlet and multiple water inlets;

[0010] The condenser assembly includes a condenser tube and a surface cooling tube arranged in pairs. The surface cooling tube is sleeved on the outer periphery of the condenser tube to form a cooling space between the outer wall of the condenser tube and the inner wall of the surface cooling tube. The cooling space is provided with a coolant inlet and a coolant outlet.

[0011] A plurality of condensation tube assemblies are connected between the air inlet distribution chamber and the condensation water collection chamber, wherein opposite ends of the condensation tubes are respectively connected to the first air outlet and the water inlet.

[0012] Optionally, the condenser tube and the surface cooling tube are coaxially arranged.

[0013] Optionally, the condenser pipe assembly further includes a connecting pipe, which is connected between two adjacent cooling spaces.

[0014] Optionally, the opposite ends of the connecting pipe are respectively connected to two adjacent surface cooling pipes, one of the two adjacent connecting pipes is connected to one end of the surface cooling pipe close to the air inlet distribution chamber, and the other is connected to one end of the surface cooling pipe close to the condensate collection chamber.

[0015] Optionally, a plurality of condensation tube assemblies are arranged in sequence and at equal intervals along the length direction of the air inlet distribution cavity.

[0016] Optionally, the coolant inlet and the coolant outlet are respectively arranged on two cooling spaces that are farthest apart from each other.

[0017] Optionally, a preset interval is left between two adjacent surface cooling tubes.

[0018] Optionally, the water-cooled condensing device further includes a first water tank and a water pump, the water inlet of the water pump is connected to the first water tank, the water outlet of the water pump is connected to the coolant inlet, and the coolant outlet is connected to the first water tank.

[0019] Optionally, the water-cooled condensing device further includes a second water tank, and the drain outlet is connected to the second water tank.

[0020] A second aspect of the present invention discloses a rotary dehumidifier, comprising a shell, wherein a water-cooled condensing device is arranged in the shell, and the water-cooled condensing device includes any water-cooled condensing device of the first aspect of the present invention.

[0021] According to the technical content disclosed in this utility model, the following beneficial effects are achieved:

[0022] The utility model provides a water-cooled condensing device, wherein the condenser tube assembly includes a condenser tube and a surface cooling tube arranged in pairs, the surface cooling tube being sleeved on the outer periphery of the condenser tube to form a cooling space between the outer wall of the condenser tube and the inner wall of the surface cooling tube, and the cooling space is provided with a coolant inlet and a coolant outlet. A plurality of condenser tube assemblies are connected between the air inlet distribution chamber and the condensate collection chamber, wherein the opposite ends of the condenser tube are respectively connected to the first air outlet and the water inlet. When in use, water or other coolant is injected into the cooling space from the coolant inlet, and the water or other coolant flows out from the coolant outlet, taking away the heat of the high-temperature and high-humidity wet air entering the condenser tube from the air inlet distribution chamber. The high-temperature and high-humidity wet air is condensed into liquid in the condenser tube. Therefore, as long as the specific heat capacity of the coolant injected into the cooling space from the coolant inlet is higher than that of the air, its condensation effect will be better than the condenser in the background technology, thereby improving the condensation efficiency of the water-cooled condensing device.

[0023] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0025] Figure 1 This is a schematic structural diagram of the water-cooled condensing device of the present invention.

[0026] Figure 2 This is a partial cross-sectional view of the water-cooled condensing device of the present invention.

[0027] Figure 3 This is the structural diagram of the rotary dehumidifier of the present utility model.

[0028] Explanation of the reference numerals: 100, air inlet distribution chamber; 110, first air inlet; 200, condensate collection chamber; 210, second air outlet; 220, drain outlet; 300, condenser assembly; 310, condenser; 320, surface cooling tube; 321, coolant inlet; 322, coolant outlet; 330, cooling space; 400, connecting pipe; 500, shell; 510, first water tank; 520, second water tank; 530, second air inlet; 540, shell exhaust outlet. DETAILED DESCRIPTION

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0030] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0031] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0032] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0033] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0034] See also Figure 1 The first aspect of the present invention provides a water-cooled condensing device, comprising an air inlet distribution chamber 100, a condensed water collecting chamber 200 and a condensing pipe assembly 300; the air inlet distribution chamber 100 comprises a first air inlet 110 and a plurality of first air outlets; the condensed water collecting chamber 200 comprises a second air outlet 210, a drain port 220 and a plurality of water inlets; the condensing pipe assembly 300 comprises a condensing pipe 310 and a surface cooling pipe 320 arranged in pairs, the surface cooling pipe 320 being coaxially sleeved on the outer periphery of the condensing pipe 310 so as to A cooling space 330 is formed between the outer wall of the air distribution chamber 100 and the inner wall of the surface cooling tube 320. A coolant inlet 321 and a coolant outlet 322 are provided in the cooling space 330. Multiple condenser tube assemblies 300 are connected between the air inlet distribution chamber 100 and the condensate collection chamber 200. The opposite ends of the condenser tubes 310 are connected to the first air outlet and the water inlet, respectively. Specifically, the multiple condenser tube assemblies 300 are equidistantly arranged along the length of the air inlet distribution chamber 100, with a predetermined gap between adjacent surface cooling tubes 320. The condenser tube assembly 300 also includes a connecting pipe 400, which connects two adjacent cooling spaces 330.

[0035] Furthermore, the coolant inlet 321 and coolant outlet 322 are respectively located in the two cooling spaces 330 that are farthest apart. The opposite ends of the connecting pipe 400 are connected to two adjacent surface cooling pipes 320. One of the two adjacent connecting pipes 400 is connected to the end of the surface cooling pipe 320 near the air inlet distribution chamber 100, and the other is connected to the end of the surface cooling pipe 320 near the condensate collection chamber 200. This arrangement maximizes the coolant's path within the cooling space 330 and improves the heat exchange effect of the condensate on the condenser pipe 310.

[0036] The water-cooled condensing device also includes a first water tank 510 and a water pump. The water inlet of the water pump is connected to the first water tank 510, the water outlet of the water pump is connected to the coolant inlet 321, and the coolant outlet 322 is connected to the first water tank 510. The setting of the water pump enables the coolant in the first water tank 510 and the coolant in the cooling space 330 to continuously circulate and exchange.

[0037] The water-cooled condensing device also includes a second water tank 520, and the drain outlet 220 is connected to the second water tank 520. The second water tank 520 is used to receive the condensed water generated by condensation in the condensing tube 310. After the condensed water flows into the condensing water collecting chamber 200 from the condensing tube 310, it enters the second water tank 520 through the drain outlet 220 opened on the condensing water collecting chamber 200.

[0038] As can be seen, arranging the condenser tube assembly 300 in multiple rows increases the contact area between the condenser tube 310 and the water in the surface cooling tube 320, which helps improve the condensing efficiency of the condensing device. This allows the high-temperature, high-humidity gas in the condenser tube 310 to be quickly cooled and fully condensed into liquid water, effectively improving the condensing effect of the condensing device. There are gaps between each condenser tube assembly 300, allowing the indoor air to pass through the surface cooling tube 320 before entering the rotor. The flowing air cools the water in the surface cooling tube 320, allowing the cooled water to condense the high-temperature, high-humidity gas in the condenser tube 310 again.

[0039] The inner diameter of the surface cooling tube 320 is larger than the outer diameter of the condenser tube 310, so that the water in the surface cooling tube 320 can completely contact the outer wall of the condenser tube 310 to dissipate heat, so that the high-temperature and high-humidity gas in the condenser tube 310 can be quickly cooled down and then condensed into liquid water, which is beneficial to improving the condensation efficiency of the condensing device.

[0040] The coolant inlet 321 on the surface cooling tube 320 is connected to the water pump, and the coolant outlet 322 on the surface cooling tube 320 directly leads to the first water tank 510; the water pump is used to pump the water in the first water tank 510 into the surface cooling tube 320 to condense the high-temperature and high-humidity gas in the condenser 310, so that the condensed water flows back to the first water tank 510, and is continuously recycled, which is conducive to saving water resources.

[0041] Recombination Figure 3 The second aspect of the present invention discloses a rotary dehumidifier, including a shell 500, in which a water-cooled condensing device is arranged. The water-cooled condensing device includes any water-cooled condensing device of the first aspect of the present invention.

[0042] A second air inlet 530 is provided at the rear end of the shell 500, and an air inlet filter is installed on the inner side of the second air inlet 530. A shell exhaust port 540 is provided at the upper end of the shell 500, and a non-detachable first water tank 510 and a detachable second water tank 520 are provided at the lower end of the shell 500. The second water tank 520 is located at the lower end of the drain outlet 220 and is used to collect condensed water; the second air inlet 530 of the shell 500 is added with an air inlet filter mainly to prevent dust and other foreign matter from entering the interior of the shell 500 along with the indoor air, so as to avoid dust clogging the dehumidification wheel and thus affecting the dehumidification capacity.

[0043] A negative pressure fan is provided in the housing 500. A dehumidification wheel module is installed in front of the negative pressure fan. The dehumidification wheel module includes a dehumidification wheel, an electric heating plate, and a positive pressure fan. The dehumidification wheel is divided into an adsorption zone and a desorption zone. The high-temperature and high-humidity gas from the desorption zone enters the air inlet distribution chamber 100 through the first air inlet 110.

[0044] The negative pressure fan directly inhales the indoor air that needs to be dehumidified from the second air inlet 530. A dehumidification wheel coated with an adsorbent is installed in front of the negative pressure fan. The adsorption area of ​​the dehumidification wheel physically adsorbs the moisture in the air that needs to be dehumidified onto the adsorbent. Then the wheel that has adsorbed moisture slowly rotates into the regeneration area of ​​the dehumidification wheel, and the moisture adsorbed on the adsorbent is heated and vaporized to form high-temperature and high-humidity gas. The high-temperature and high-humidity gas enters the air inlet distribution chamber 100 through the first air inlet 110 for subsequent condensation.

[0045] A water pump is provided in the first water tank 510, and the inlet end of the water pump is completely immersed below the water surface of the first water tank 510, and the outlet end of the water pump is connected to the coolant inlet 321, and the coolant outlet 322 directly leads to the first water tank 510 to form an internal circulation; the water in the first water tank 510 is pumped into the surface cooling tube 320 by the water pump to condense the high-temperature and high-humidity gas in the condenser tube 310, and at the same time, the water in the surface cooling tube 320 will have a certain temperature rise after condensation, and after condensation, the water in the surface cooling tube 320 is cooled again by the flowing air that needs to be dehumidified, and then the water in the surface cooling tube 320 flows back to the first water tank 510 again, and this continuous cycle forms an internal circulation.

[0046] The negative pressure fan, the dehumidification wheel module, the condensation tube assembly 300 and the air inlet filter are arranged in the same axial direction, and the incoming air passes through the air inlet filter, the condensation tube assembly 300, the dehumidification wheel module and the negative pressure fan in sequence.

[0047] Under the action of the negative pressure fan, the air that needs to be dehumidified passes through the air inlet filter, the condenser assembly 300, and the dehumidification wheel module in sequence. The moisture in the air that needs to be dehumidified is finally physically adsorbed on the adsorbent by the adsorption area of ​​the dehumidification wheel. After passing through the adsorption area, a large amount of moisture is removed from the air and it becomes dry air and is discharged into the room from the shell exhaust port 540.

[0048] Working principle of rotary dehumidifier:

[0049] When the high-temperature and high-humidity gas desorbed from the desorption zone of the rotor enters the air inlet distribution chamber 100 through the air inlet interface, and then enters each condenser 310, when the high-temperature and high-humidity gas enters each condenser 310, a temperature difference is formed between the high-temperature and high-humidity gas inside the condenser 310 and the water in the cooling space 330, so that the moisture of the high-temperature and high-humidity gas is fully condensed on the inner wall of the condenser 310 to obtain liquid water. Then, the condensed gas enters the condensate collection chamber 200 from each condenser tube 310, and finally flows out from the second air outlet 210 opened on the condensate collection chamber 200 and returns to the desorption zone again. At the same time, the liquid water generated by condensation flows from each condenser tube 310 into the condensate collection chamber 200, and finally flows out from the drain port 220 opened on the condensate collection chamber 200 into the second water tank 520, thereby realizing condensation and dehumidification. When the equipment is running, water is always used to contact the outer wall of the condenser tube 310 to dissipate heat, so that the high-temperature and high-humidity gas in the condenser tube 310 can be quickly cooled down and then condensed into liquid water, accompanied by an increase in the water temperature in the surface cooling tube 320. At the same time, due to the action of the negative pressure fan, the flowing indoor air is in contact with the outer wall of the surface cooling tube 320 to dissipate heat, so that the water in the surface cooling tube 320 can be cooled down. Therefore, using water condensation can fully condense the moisture in the high-temperature and high-humidity gas, which improves the condensation efficiency compared to using air condensation, and further improves the dehumidification effect of the wheel.

[0050] In summary, the water-cooled condensing device and rotary dehumidifier provided by the present invention have the following beneficial effects compared with the prior art:

[0051] 1. A surface cooling tube with a larger diameter is wrapped around a condenser tube with a smaller diameter. The inner diameter of the surface cooling tube is larger than the outer diameter of the condenser tube. Water is used to contact the outer wall of the condenser tube to dissipate heat, so that the high-temperature and high-humidity gas in the condenser tube can be quickly cooled down. The moisture in the high-temperature and high-humidity gas can also be quickly condensed on the inner wall of the condenser tube to obtain liquid water. Therefore, using water condensation can fully condense the moisture in the high-temperature and high-humidity gas, which improves the condensation efficiency compared to using air condensation and further improves the dehumidification effect of the wheel.

[0052] 2. The prior art uses a negative pressure fan to draw indoor air into the wheel adsorption area when the device is running. During this process, the indoor air will first pass through the condenser to directly cool and condense the condenser, so that the high-temperature and high-humidity gas in the condenser can be cooled and condensed into liquid water. However, the present invention uses the flowing water in the surface cooling tube to contact the outer wall of the condenser to dissipate heat, so that the high-temperature and high-humidity gas in the condenser can be quickly cooled and then condensed into liquid water, accompanied by an increase in the water temperature in the surface cooling tube. At the same time, due to the action of the negative pressure fan, the flowing indoor air directly contacts the outer wall of the surface cooling tube to dissipate heat, so that the water in the surface cooling tube is cooled. The cooled water flows to the water tank and is pumped into the surface cooling tube again by the water pump to condense the high-temperature and high-humidity gas in the condenser. The flowing water is constantly recycled to cool and condense the high-temperature and high-humidity gas in the condenser.

[0053] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A water-cooled condensing device, characterized in that: include: Air inlet distribution chamber, condensate collection chamber and condensation pipe assembly; The air inlet distribution cavity includes a first air inlet and a plurality of first air outlets; The condensed water collection chamber includes a second air outlet, a drain outlet and multiple water inlets; The condenser assembly includes a condenser tube and a surface cooling tube arranged in pairs, wherein the surface cooling tube is sleeved on the outer periphery of the condenser tube to form a cooling space between the outer wall of the condenser tube and the inner wall of the surface cooling tube, and the cooling space is provided with a coolant inlet and a coolant outlet; A plurality of condensation tube assemblies are connected between the air inlet distribution chamber and the condensation water collection chamber, wherein opposite ends of the condensation tubes are respectively connected to the first air outlet and the water inlet.

2. The water-cooled condensing device according to claim 1, characterized in that: The condenser tube and the surface cooling tube are coaxially arranged.

3. The water-cooled condensing device according to claim 2, characterized in that: The condenser pipe assembly further includes a connecting pipe, which is connected between two adjacent cooling spaces.

4. The water-cooled condensing device according to claim 3, characterized in that: The opposite ends of the connecting pipe are respectively connected to two adjacent surface cooling pipes, one of the two adjacent connecting pipes is connected to one end of the surface cooling pipe close to the air inlet distribution chamber, and the other is connected to one end of the surface cooling pipe close to the condensate collection chamber.

5. The water-cooled condensing device according to any one of claims 1 to 4, characterized in that: The plurality of condensation tube assemblies are arranged in sequence and at equal intervals along the length direction of the air inlet distribution cavity.

6. The water-cooled condensing device according to claim 5, characterized in that: The coolant inlet and the coolant outlet are respectively arranged on the two cooling spaces that are farthest apart from each other.

7. The water-cooled condensing device according to any one of claims 1 to 4, characterized in that: A preset interval is left between two adjacent surface cooling pipes.

8. The water-cooled condensing device according to any one of claims 1 to 4, characterized in that: The water-cooled condensing device further includes a first water tank and a water pump, wherein the water inlet of the water pump is connected to the first water tank, the water outlet of the water pump is connected to the coolant inlet, and the coolant outlet is connected to the first water tank.

9. The water-cooled condensing device according to any one of claims 1 to 4, characterized in that: The water-cooled condensing device further includes a second water tank, and the drain port is communicated with the second water tank.

10. A rotary dehumidifier, comprising a housing, wherein a water-cooled condensing device is provided in the housing, characterized in that: The water-cooled condensing device comprises the water-cooled condensing device according to any one of claims 1 to 9.

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