Evaporative cooling air conditioning unit with waste heat recovery function
By designing a recovery and absorption mechanism in the evaporative cooling air conditioning unit, the problem of ineffective heat utilization is solved by utilizing water vapor heat exchange and condensation, thus achieving waste heat recovery and efficient operation.
Patent Information
- Application Number
- CN202423269387.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-30
AI Technical Summary
During operation, the heat exchange system of the evaporative cooling air conditioning unit is not equipped with a bypass return air recovery function, which makes it difficult to effectively capture and utilize the valuable heat.
The design incorporates a recovery and absorption mechanism. Through components such as an air inlet pipe, a disc-shaped tube, a water storage tank, a baffle plate, and a buoyancy ball, the heat recovery and utilization of water vapor are achieved. This includes heat exchange within the disc-shaped tube and water vapor condensation in the water storage tank. The buoyancy ball is used to detect the liquid level and remind users to add water.
It realizes the recovery of waste heat from the evaporative cooling air conditioning unit, improves the heat utilization rate, and ensures the efficient operation of the system by reminding the user to add water through a buoyancy ball.
Smart Images

Figure CN223939568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning unit technology, and in particular to an evaporative cooling air conditioning unit with waste heat recovery. Background Technology
[0002] Evaporative cooling air conditioning units are devices that utilize evaporative condensation technology for refrigeration. They combine the principles of evaporative cooling and forced air circulation to achieve efficient and energy-saving cooling. The evaporative cooling air conditioning unit achieves its cooling effect through the following steps: First, cooling water is pumped to the water distributor at the top of the heat exchange tube assembly via a circulating water pump. The high-efficiency anti-clogging nozzles on the water distributor evenly distribute the water onto each tube assembly, causing the water to flow down the outer surface of the tubes in a film-like manner. Finally, the water falls into the water tank through the packing layer at the top. As the water flows through the cooler tube assembly, the latent heat of vaporization of the water cools the medium inside the tubes. Simultaneously, fresh air drawn in from the air vents around the bottom of the cooler by an axial flow fan carries away the water vapor, creating conditions for continuous evaporation of the water film. When fresh air passes through the cooler, the air temperature decreases due to the heat absorbed by the evaporating water. The axial flow fan then delivers the treated cool air into the room, thus achieving the cooling effect.
[0003] Publication (Announcement) No.: CN217503856U discloses an evaporative cooling air conditioning unit, including a cooling space, a first fan, a first heat exchanger, a first container, a compressor, a second heat exchanger, and a throttling mechanism; the first heat exchanger is disposed in the cooling space, the first fan draws air to the first heat exchanger, the exhaust end of the compressor is connected to the inlet of the second heat exchanger, the outlet of the second heat exchanger is connected to the inlet of the throttling mechanism, the outlet of the throttling mechanism is connected to the inlet of the first heat exchanger, and the outlet of the first heat exchanger is connected to the inlet of the compressor.
[0004] While the above solution addresses the issue of high energy consumption in existing refrigeration equipment, the evaporative cooling air conditioning unit lacks a bypass return air recovery function in its heat exchange system, making it difficult to effectively capture and utilize the valuable heat evaporated from the equipment. Utility Model Content
[0005] The main purpose of this utility model is to provide an evaporative cooling air conditioning unit with waste heat recovery. By setting up a recovery mechanism and an absorption mechanism, it solves the problem that the valuable heat evaporated from the equipment is difficult to be effectively captured and utilized because the heat exchange treatment system is not equipped with a bypass return air recovery function.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An evaporative cooling air conditioning unit with waste heat recovery includes:
[0008] The generator set body has a water storage tank installed on its outer side;
[0009] The recovery mechanism includes an air inlet pipe fixedly connected to the outer wall of the unit body, a disc-shaped tube fixedly connected to the end face of the air inlet pipe for carrying water vapor, and an air outlet pipe fixedly connected to the other end of the disc-shaped tube.
[0010] The absorption mechanism includes a partition fixedly connected to the inner wall of the water storage tank, which divides the interior of the water storage tank into a water storage chamber and a collection chamber.
[0011] Preferably, the recycling mechanism further includes a water collection tank fixedly connected to the bottom of the disc tube near the end face of the air outlet pipe, and the water collection tank is connected to the interior of the disc tube.
[0012] Preferably, the recycling mechanism further includes a drain pipe that passes through the water collection tank and is fixedly connected to the side plate of the water collection tank, and a drain valve fixedly installed on the drain pipe. The drain pipe is a U-shaped pipe, and the height of the drain pipe opening inside the water collection tank is greater than the height of the other end of the drain pipe opening.
[0013] Preferably, the recycling mechanism further includes an air guide pipe fixedly connected to the top of the drain pipe, and a one-way valve installed on the air guide pipe.
[0014] Preferably, the absorption mechanism further includes a rectangular rod fixedly connected to the top of the partition, and a buoyancy ball sleeved on the outer wall of the rectangular rod.
[0015] Preferably, the absorption mechanism further includes a sealing cylinder fixedly connected to the inner wall of the water storage tank, a connecting spring fixedly connected to the top wall of the sealing cylinder, and a sealing block fixedly connected to the end face of the connecting spring. The sealing block is an I-shaped block, and the sealing block is connected to the buoyancy ball through a connecting rope.
[0016] Preferably, the absorption mechanism further includes a touch switch fixedly connected to the inner wall of the sealing cylinder, the touch switch being located inside the protective cavity formed by the sealing block and the sealing cylinder.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] I. In this utility model, water is added to the water storage chamber of the water storage tank, and then the water vapor inside the unit body will enter the disc tube through the air inlet pipe. At this time, the water vapor inside the disc tube will heat the water in the water storage chamber through heat exchange, thereby realizing waste heat recovery.
[0019] Second, in this utility model, the buoyancy ball descends, thereby pulling the connecting rope, which in turn moves the sealing block downward. At this time, the connecting spring will be in a stretched state until the upper part of the sealing block contacts the touch switch, thereby reminding the operator that the water tank needs to be filled with water, ensuring the utilization rate of the heat of water vapor inside the disc tube. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the disc-shaped tube structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of the water storage tank of this utility model;
[0023] Figure 4 This utility model Figure 3 Enlarged schematic diagram of structure A in the middle;
[0024] Figure 5 This is a schematic diagram of the internal structure of the disc-shaped tube and water collection tank of this utility model.
[0025] In the diagram: 1. Generator unit body; 2. Water storage tank; 301. Air inlet pipe; 302. Coiled pipe; 303. Air outlet pipe; 304. Water collection tank; 305. Drain pipe; 306. Drain valve; 307. Air guide pipe; 308. Check valve; 401. Partition plate; 402. Rectangular rod; 403. Buoyancy ball; 404. Connecting rope; 405. Sealing cylinder; 406. Connecting spring; 407. Sealing block; 408. Touch switch. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] Example 1: As Figure 1-5 As shown, an evaporative cooling air conditioning unit with waste heat recovery includes:
[0028] The unit body 1 has a water storage tank 2 installed on its outer side;
[0029] The recovery mechanism includes an air inlet pipe 301 fixedly connected to the outer wall of the unit body 1, a coiled pipe 302 fixedly connected to the end face of the air inlet pipe 301 for carrying water vapor, and an air outlet pipe 303 fixedly connected to the other end of the coiled pipe 302. The coiled pipe 302 is connected to the interior of the unit body 1 through the air inlet pipe 301 and the air outlet pipe 303, so that water vapor flows inside the coiled pipe 302.
[0030] The absorption mechanism includes a partition 401 fixedly connected to the inner wall of the water storage tank 2, which divides the interior of the water storage tank 2 into a water storage chamber and a collection chamber.
[0031] The recycling mechanism also includes a water collection tank 304 fixedly connected to the bottom of the end face of the disc tube 302 near the outlet pipe 303. The water collection tank 304 is connected to the interior of the disc tube 302 and is used to collect condensate after water vapor condenses. Both the disc tube 302 and the water collection tank 304 are located inside the collection chamber.
[0032] The recycling mechanism also includes a drain pipe 305 that passes through the water collection tank 304 and is fixedly connected to the side plate of the water collection tank 304, and a steam trap 306 fixedly installed on the drain pipe 305. The drain pipe 305 is a U-shaped pipe. The height of the drain pipe 305 inside the water collection tank 304 is greater than the height of the other end of the drain pipe 305. The steam trap 306 is used to prevent water vapor from being discharged from the drain pipe 305, but does not affect the discharge of liquid. The drain pipe 305 inside the water collection tank 304 can be called the inlet.
[0033] The recycling mechanism also includes a vent pipe 307 fixedly connected to the top of the drain pipe 305, and a one-way valve 308 installed on the vent pipe 307, wherein the vent pipe 307 connects the water collection tank 304 to the drain pipe 305, and the one-way valve 308 is used to prevent steam from entering the drain pipe 305 from the vent pipe 307.
[0034] By adding water into the water storage chamber of the water storage tank 2, the water vapor inside the unit body 1 will enter the coiled tube 302 through the air inlet pipe 301. At this time, the water vapor inside the coiled tube 302 will heat the water in the water storage chamber through heat exchange. The water vapor will then condense into condensate and enter the water collection tank 304. When the water level inside the water collection tank 304 is higher than the inlet of the drain pipe 305, the condensate inside the water collection tank 304 will be transported to the collection chamber under the principle of communicating vessels. During this process, steam leakage is prevented by the set steam trap 306, air guide pipe 307 and check valve 308.
[0035] Example 2: Figure 1-5 As shown, an evaporative cooling air conditioning unit with waste heat recovery includes:
[0036] The unit body 1 has a water storage tank 2 installed on its outer side;
[0037] The recovery mechanism includes an air inlet pipe 301 fixedly connected to the outer wall of the unit body 1, a coiled pipe 302 fixedly connected to the end face of the air inlet pipe 301 for carrying water vapor, and an air outlet pipe 303 fixedly connected to the other end of the coiled pipe 302. The coiled pipe 302 is connected to the interior of the unit body 1 through the air inlet pipe 301 and the air outlet pipe 303, so that water vapor flows inside the coiled pipe 302.
[0038] The absorption mechanism includes a partition 401 fixedly connected to the inner wall of the water storage tank 2, which divides the interior of the water storage tank 2 into a water storage chamber and a collection chamber.
[0039] The absorption mechanism also includes a rectangular rod 402 fixedly connected to the top of the partition 401, and a buoyancy ball 403 sleeved on the outer wall of the rectangular rod 402, through which the liquid level inside the water storage chamber is detected.
[0040] The absorption mechanism also includes a sealing cylinder 405 fixedly connected to the inner wall of the water storage tank 2, a connecting spring 406 fixedly connected to the inner top wall of the sealing cylinder 405, and a sealing block 407 fixedly connected to the end face of the connecting spring 406. The sealing block 407 is an I-shaped block, and the sealing block 407 is connected to the buoyancy ball 403 through a connecting rope 404. The sealing block 407 is made of rubber.
[0041] The absorption mechanism also includes a touch switch 408 fixedly connected to the inner wall of the sealing cylinder 405. The touch switch 408 is located inside the protective cavity formed by the sealing block 407 and the sealing cylinder 405. The outer wall of the water storage tank 2 is provided with an alarm light for activating the touch switch 408 (not shown in the figure). The outer diameter of the lower half of the sealing block 407 is equal to the inner diameter of the sealing cylinder 405 to prevent moisture from damaging the touch switch 408.
[0042] When the liquid level inside the water storage chamber drops, it will cause the buoyancy ball 403 to descend, which in turn pulls the connecting rope 404, thereby causing the sealing block 407 to move down. At this time, the connecting spring 406 will be in a stretched state until the upper part of the sealing block 407 contacts the touch switch 408, thereby reminding the operator that the water storage tank 2 needs to be filled with water to ensure the utilization rate of the water vapor heat inside the coil tube 302.
Claims
1. An evaporative cooling air conditioning unit with waste heat recovery, characterized in that, include: The unit body (1) has a water storage tank (2) installed on the outside of the unit body (1); The recovery mechanism includes an air inlet pipe (301) fixedly connected to the outer wall of the unit body (1), a disc pipe (302) fixedly connected to the end face of the air inlet pipe (301) for carrying water vapor, and an air outlet pipe (303) fixedly connected to the other end of the disc pipe (302). The absorption mechanism includes a partition (401) fixedly connected to the inner wall of the water storage tank (2), which divides the interior of the water storage tank (2) into a water storage chamber and a collection chamber.
2. The evaporative cooling air conditioning unit with waste heat recovery according to claim 1, characterized in that: The recycling mechanism also includes a water collection tank (304) fixedly connected to the bottom of the end face of the disc tube (302) near the air outlet pipe (303), and the water collection tank (304) is connected to the interior of the disc tube (302).
3. The evaporative cooling air conditioning unit with waste heat recovery according to claim 2, characterized in that: The recycling mechanism also includes a drain pipe (305) that passes through the water collection tank (304) and is fixedly connected to the side plate of the water collection tank (304), and a drain valve (306) fixedly installed on the drain pipe (305). The drain pipe (305) is a U-shaped pipe, and the height of the drain pipe (305) inside the water collection tank (304) is greater than the height of the other end of the drain pipe (305).
4. The evaporative cooling air conditioning unit with waste heat recovery according to claim 3, characterized in that: The recycling mechanism also includes an air guide pipe (307) fixedly connected to the top of the drain pipe (305), and a one-way valve (308) installed on the air guide pipe (307).
5. An evaporative cooling air conditioning unit with waste heat recovery according to claim 4, characterized in that: The absorption mechanism also includes a rectangular rod (402) fixedly connected to the top of the partition (401), and a buoyancy ball (403) sleeved on the outer wall of the rectangular rod (402).
6. An evaporative cooling air conditioning unit with waste heat recovery according to claim 5, characterized in that: The absorption mechanism also includes a sealing cylinder (405) fixedly connected to the inner wall of the water storage tank (2), a connecting spring (406) fixedly connected to the top wall of the sealing cylinder (405), and a sealing block (407) fixedly connected to the end face of the connecting spring (406). The sealing block (407) is an I-shaped block, and the sealing block (407) is connected to the buoyancy ball (403) through a connecting rope (404).
7. An evaporative cooling air conditioning unit with waste heat recovery according to claim 6, characterized in that: The absorption mechanism also includes a touch switch (408) fixedly connected to the inner wall of the sealing cylinder (405), the touch switch (408) being located inside the protective cavity formed by the sealing block (407) and the sealing cylinder (405).
Citation Information
Patent Citations
Evaporation cooling type air conditioning unit
CN217503856U