A water-saving evaporative condenser

Abstract

The present invention relates to the technical field of evaporative condensers, and in particular to a water-saving evaporative condenser, comprising an evaporative condenser main body, a mounting seat fixedly installed at the bottom of the evaporative condenser main body, a rainwater tank slidably arranged on the outer side of the mounting seat, a flushing mechanism rotatably connected in the rainwater tank, a rooftop drainage connection seat arranged on one side of the rainwater tank, a transmission mechanism rotatably connected on the outer side of the rooftop drainage connection seat, and a rainwater recovery seat fixedly connected to the bottom of the rooftop drainage connection seat. During the use of the evaporative condenser, the rooftop drainage connection seat can be used to collect rainwater discharged from the rooftop drainage pipe on rainy days, which can not only reduce the use of tap water, but also reduce water pollution, improve system efficiency, effectively reduce the accumulation of scale and pollutants, reduce dependence on tap water, reduce operating costs, improve environmental sustainability, and ultimately achieve a more efficient, environmentally friendly and economical operation mode.

Description

Technical Field

[0001] The invention relates to the technical field of evaporative condensers, and in particular to a water-saving evaporative condenser. Background Art

[0002] The water-saving evaporative condenser is a device that combines the principles of air cooling and water evaporation. It is used to cool high-temperature gas (usually refrigerant) to a liquid state in industrial and commercial refrigeration systems. It promotes heat exchange by utilizing the contact between air and water, effectively reducing the temperature of the equipment, and is widely used in air conditioning, refrigeration, chemical and other industries.

[0003] Compared with traditional evaporative condensers, water-saving evaporative condensers adopt advanced design and technology to minimize water consumption, thereby reducing water waste while ensuring performance.

[0004] The basic working principle of the water-saving evaporative condenser is to remove heat through the evaporation of water, and at the same time use the air flow to discharge the heat generated by the evaporation of water. Specifically, the refrigerant in the system enters the condenser after being compressed, and it contacts the water flow inside the condenser. The water evaporates and removes the heat, so the refrigerant gradually cools and turns into liquid. In this process, the air passes through the condenser to remove the heat generated by evaporation.

[0005] Existing water-saving evaporative condensers can be installed on the roof to reduce land occupation, but existing water-saving evaporative condensers usually use tap water. The tap water passes through the heat exchange system of the condenser to help take away the heat of the refrigerant. Using tap water sources means that water needs to be obtained from the municipal water supply system, which will increase the demand for public water resources. At the same time, using tap water as a cooling water source will incur continuous water bill expenses, resulting in increased costs.

[0006] In summary, the prior art lacks rainwater utilization technology for evaporative condensers. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a water-saving evaporative condenser.

[0008] In order to achieve the above purpose, the technical solution adopted by the present invention is: a water-saving evaporative condenser, including an evaporative condenser body, a mounting seat is fixedly installed on the bottom of the evaporative condenser body, a rainwater tank is slidingly provided on the outside of the mounting seat, a flushing mechanism is rotatably connected inside the rainwater tank, a rooftop drainage connection seat is provided on one side of the rainwater tank, a transmission mechanism is rotatably connected on the outside of the rooftop drainage connection seat, a rainwater recovery seat is fixedly connected to the bottom of the rooftop drainage connection seat, and a fixing seat is welded and fixed on the lower surface of the rainwater tank.

[0009] Preferably, a telescopic sleeve is fixedly connected to the water inlet end of the evaporative condenser body, and the other end of the telescopic sleeve is connected and fixedly disposed through the inner wall of the rainwater tank.

[0010] Preferably, a hydraulic rod is fixedly connected to the bottom end of the mounting seat, the hydraulic rod is fixedly connected to the inner wall of the rainwater tank, and a protective baffle is fixedly connected to the top end of the mounting seat.

[0011] Preferably, the middle part of the rainwater tank is arranged in a concave structure, the top surface of the rainwater tank is arranged in an inclined structure, a guardrail is installed on the top surface of the rainwater tank, a ladder frame is connected and fixedly provided on one side of the rainwater tank, an annular rack is connected and fixedly provided on the inner wall of the rainwater tank, a cleaning and sewage pipe is connected and fixedly provided at the bottom end of the rainwater tank, and a double-headed pipe joint is connected and fixedly provided on one side of the top end of the rainwater tank.

[0012] Preferably, the flushing mechanism includes a flushing pipe A, one end of which is rotatably connected to the inner wall of the rainwater tank, a water pump is rotatably connected to the bottom end of the flushing pipe A, the water pump is fixedly connected to the outer wall of the rainwater tank, a water receiving trough is fixedly connected to the output end of the water pump, one end of the flushing pipe A extends to the inner wall of the rainwater tank and is fixedly connected to a motor, and the motor is fixedly connected to the inner wall of the rainwater tank.

[0013] Preferably, the other end of the flushing tube A is rotatably connected to a flushing tube B, and the bottom end of the flushing tube B is fixedly connected to a transmission wheel, which is meshed with an annular rack for transmission, and the top of the flushing tube B and the end of the flushing tube A close to the flushing tube B are both spherical structures.

[0014] Preferably, rainwater pipe joints are fixedly provided at the upper and lower ends of the rooftop drainage connection seat, and the middle part of the rainwater pipe joint located on the lower side is concavely structured. An impeller is rotatably provided inside the rooftop drainage connection seat, and one end of the impeller extends through the inner wall of the rooftop drainage connection seat to the outside and is fixedly provided with a driving wheel.

[0015] Preferably, the transmission mechanism includes an electric push rod, which is rotatably connected to the roof drainage connection seat, one end of the electric push rod is connected and fixedly provided with a driven wheel, the driven wheel is meshing and transmission-arranged with the driving wheel, the other end of the electric push rod is connected and fixedly provided with an L-shaped rod, the other end of the L-shaped rod is rotatably connected with a connecting rod, the other end of the connecting rod is rotatably connected with a labor-saving pressure rod, the other end of the labor-saving pressure rod is rotatably connected to the top surface of the rainwater recovery seat, and a sliding groove is provided on the side of the labor-saving pressure rod facing the rainwater recovery seat.

[0016] Preferably, a piston plate is slidingly provided in the rainwater recovery seat, and a ball head rod is fixedly connected to the top surface of the piston plate. The top end of the ball head rod extends through the inner wall of the rainwater recovery seat to the outside and is slidingly provided with the inner wall of the slide groove. A water receiving pipe is passed through and fixedly provided on one side of the rainwater recovery seat close to the lower rainwater pipe joint, and the other end of the water receiving pipe is passed through and fixedly provided on the inner wall of the lower rainwater pipe joint. A filter is fixedly provided on one end of the water receiving pipe located in the rainwater pipe joint, and a connecting hose is passed through and fixedly provided on the other side of the rainwater recovery seat, and the other end of the connecting hose is fixedly connected to one end of the double-headed pipe joint.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. During the use of the evaporative condenser, the roof drainage connection seat can be used to collect rainwater discharged from the roof drainage pipe on rainy days, and the transmission mechanism can be used to drive the rainwater recovery seat to filter the rainwater and transport it to the rainwater tank for collection. This can not only reduce the use of tap water, but also reduce water pollution and improve system efficiency. Compared with tap water, rainwater has a lower mineral content and is suitable for use as cooling water for evaporative condensers. It can effectively reduce the accumulation of scale and pollutants, reduce dependence on tap water, reduce operating costs, improve environmental sustainability, and ultimately achieve a more efficient, environmentally friendly and economical operation mode;

[0019] 2. By setting up a mounting base to place the main body of the evaporative condenser inside the rainwater tank, and with a protective cover, the protection capability of the condenser can be effectively improved, the impact of the external environment on the equipment can be reduced, the equipment life can be extended, and the maintenance requirements can be reduced. At the same time, the lifting mounting base can drive the lifting of the main body of the evaporative condenser, which is convenient for heat dissipation and air circulation during use, ensuring the efficient operation and long-term stability of the condenser;

[0020] 3. By setting up a flushing mechanism in the rainwater tank and utilizing the circulating flushing pipe A and the circulating and self-rotating flushing pipe B, the inside of the rainwater tank can be flushed, thus realizing automation, reducing the frequency and labor intensity of manual cleaning, and improving the operating efficiency of the system. It can effectively ensure the cleanliness of rainwater, reduce the accumulation of impurities, and maintain the water quality of the evaporative condenser, thereby optimizing its working efficiency and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a water-saving evaporative condenser of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the overall structure of a water-saving evaporative condenser of the present invention;

[0023] Figure 3This is a schematic diagram of the main structure of an evaporative condenser of a water-saving evaporative condenser of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of a mounting base for a water-saving evaporative condenser according to the present invention;

[0025] Figure 5 A schematic cross-sectional view of a rainwater tank structure of a water-saving evaporative condenser according to the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of a flushing mechanism of a water-saving evaporative condenser of the present invention;

[0027] Figure 7 It is a partial cross-sectional schematic diagram of the roof drainage connection seat structure of a water-saving evaporative condenser of the present invention;

[0028] Figure 8 It is a partial cross-sectional schematic diagram of the transmission mechanism structure of a water-saving evaporative condenser of the present invention;

[0029] Fig. 9 The present invention is a schematic cross-sectional view of the structure of a rainwater recovery seat of a water-saving evaporative condenser.

[0030] The following are marked in the figure: 1. Evaporative condenser body; 2. Mounting seat; 3. Rainwater tank; 4. Flushing mechanism; 5. Roof drainage connection seat; 6. Transmission mechanism; 7. Rainwater recovery seat; 8. Fixed seat; 101. Telescopic sleeve; 201. Hydraulic rod; 202. Protective cover; 301. Guardrail; 302. Ladder; 303. Ring rack; 304. Cleaning drain pipe; 305. Double-head pipe joint; 401. Flushing pipe A; 40 2. Water pump; 403. Water connection trough; 404. Motor; 405. Flushing pipe B; 406. Driving wheel; 501. Rainwater pipe joint; 502. Impeller; 503. Driving wheel; 601. Electric push rod; 602. Driven wheel; 603. L-shaped rod; 604. Labor-saving pressure rod; 605. Slide; 606. Connecting rod; 701. Piston plate; 702. Ball head rod; 703. Water connection pipe; 704. Filter; 705. Connecting hose. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] like Figure 1-Figure 9A water-saving evaporative condenser is shown, comprising an evaporative condenser body 1, a mounting seat 2 is fixedly installed at the bottom of the evaporative condenser body 1, a rainwater tank 3 is slidably provided on the outer side of the mounting seat 2, a flushing mechanism 4 is rotatably connected inside the rainwater tank 3, a rooftop drainage connection seat 5 is provided on one side of the rainwater tank 3, a transmission mechanism 6 is rotatably connected on the outer side of the rooftop drainage connection seat 5, a rainwater recovery seat 7 is fixedly connected to the bottom of the rooftop drainage connection seat 5, and a fixing seat 8 is welded and fixed on the lower surface of the rainwater tank 3.

[0033] like Figure 3 As shown, the water inlet end of the evaporative condenser body 1 is connected and fixedly provided with a telescopic sleeve 101, and the other end of the telescopic sleeve 101 is connected and fixedly provided through the inner wall of the rainwater tank 3. The evaporative condenser body 1 can pump out rainwater through the telescopic sleeve 101 for use.

[0034] like Figure 4 As shown, the bottom end of the mounting seat 2 is connected and fixedly provided with a hydraulic rod 201, the hydraulic rod 201 is connected and fixedly provided with the inner wall of the rainwater tank 3, and the top end of the mounting seat 2 is connected and fixedly provided with a protective cover 202. The hydraulic rod 201 moves the mounting seat 2 out of the rainwater tank 3.

[0035] like Figure 5 As shown, the middle part of the rainwater tank 3 is arranged in a concave structure, the top surface of the rainwater tank 3 is arranged in an inclined structure, a guardrail 301 is installed on the top surface of the rainwater tank 3, a ladder frame 302 is connected and fixedly installed on one side of the rainwater tank 3, an annular rack 303 is connected and fixedly installed on the inner wall of the rainwater tank 3, a cleaning and drainage pipe 304 is connected and fixedly installed at the bottom end of the rainwater tank 3, and a double-headed pipe joint 305 is connected and fixedly installed on one side of the top end of the rainwater tank 3. A water level sensor is installed in the rainwater tank 3.

[0036] like Figure 6 As shown, the flushing mechanism 4 includes a flushing pipe A401, one end of which is rotatably connected to the inner wall of the rainwater tank 3, a water pump 402 is rotatably connected to the bottom end of the flushing pipe A401, the water pump 402 is fixedly connected to the outer wall of the rainwater tank 3, the output end of the water pump 402 is fixedly connected to a water receiving trough 403, one end of the flushing pipe A401 extends to the inner wall of the rainwater tank 3 and is fixedly connected to a motor 404, and the motor 404 is fixedly connected to the inner wall of the rainwater tank 3.

[0037] The other end of the flushing pipe A401 is rotatably connected with a flushing pipe B405, and the bottom of the flushing pipe B405 is fixedly connected with a transmission wheel 406, which is meshed with the annular rack 303 for transmission. The top of the flushing pipe B405 and the end of the flushing pipe A401 close to the flushing pipe B405 are both spherical. Water mixed with detergent is injected into the water receiving tank 403, and is pumped out by the water pump 402 and injected into the flushing pipe A401 and the flushing pipe B405. At this time, the motor 404 is used to drive the flushing pipe A401 and the flushing pipe B405 to rotate, and then under the action of the annular rack 303, the flushing pipe B405 connected with the transmission wheel 406 is driven to rotate, and the rainwater tank 3 is flushed. At the same time, the top of the flushing pipe B405 and the end of the flushing pipe A401 close to the flushing pipe B405 are both spherical, which is conducive to flushing the corners in the rainwater tank 3, and the flushed sewage is discharged through the cleaning sewage pipe 304.

[0038] like Figure 7 As shown, rainwater pipe joints 501 are connected and fixedly arranged at the upper and lower ends of the roof drainage connection seat 5, and the middle part of the rainwater pipe joint 501 located at the lower side is arranged in a concave structure. An impeller 502 is rotatably arranged in the roof drainage connection seat 5, and one end of the impeller 502 passes through the inner wall of the roof drainage connection seat 5 and extends to the outside and is connected and fixedly arranged with a driving wheel 503. Rainwater will be collected through the roof and flow into the roof drainage connection seat 5, and the flowing water will drive the impeller 502 to rotate, and the impeller 502 will drive the driving wheel 503 to rotate.

[0039] like Figure 8 As shown, the transmission mechanism 6 includes an electric push rod 601, which is rotatably connected to the roof drainage connection seat 5, and a driven wheel 602 is fixedly connected to one end of the electric push rod 601, and the driven wheel 602 is meshed with the driving wheel 503 for transmission. The other end of the electric push rod 601 is fixedly connected to an L-shaped rod 603, and the other end of the L-shaped rod 603 is rotatably connected to a connecting rod 606, and the other end of the connecting rod 606 is rotatably connected to a labor-saving pressure rod 604, and the other end of the labor-saving pressure rod 604 is rotatably connected to the top surface of the rainwater recycling seat 7, and a sliding groove 605 is provided on the side of the labor-saving pressure rod 604 facing the rainwater recycling seat 7. The driving wheel 503 drives the electric push rod 601 connected to the driven wheel 602 to rotate, and at this time, the electric push rod 601 will drive the connected L-shaped rod 603 to rotate, so that the L-shaped rod 603 drives the labor-saving pressure rod 604 connected to the connecting rod 606 to swing back and forth.

[0040] like Fig. 9As shown, a piston plate 701 is provided in a sliding manner in the rainwater recovery seat 7, a ball rod 702 is connected and fixedly provided on the top surface of the piston plate 701, the top of the ball rod 702 passes through the inner wall of the rainwater recovery seat 7 and extends to the outside and is slidably provided with the inner wall of the slide groove 605, a water receiving pipe 703 is connected and fixedly provided on the side of the rainwater recovery seat 7 close to the lower rainwater pipe joint 501, the other end of the water receiving pipe 703 is connected and fixedly provided with the inner wall of the lower rainwater pipe joint 501, a filter screen 704 is connected and fixedly provided on one end of the water receiving pipe 703 located in the rainwater pipe joint 501, a connecting hose 705 is connected and fixedly provided on the other side of the rainwater recovery seat 7, and the other end of the connecting hose 705 is connected and fixedly provided with one end of the double-headed pipe joint 305. Spring-type one-way valves are installed in the input and output ends of the rainwater recovery seat 7. The reciprocating force-saving pressure rod 604 will drive the piston plate 701 connected to the ball head rod 702 to move back and forth through the slide groove 605, so that the rainwater filtered by the filter screen 704 is sucked into the rainwater recovery seat 7 through the water receiving pipe 703, and then the piston plate 701 injects the rainwater into the rainwater tank 3 through the connecting hose 705 for collection.

[0041] Working principle: When the evaporative condenser is needed in a building, it is installed on the roof. First, the rainwater tank 3 is installed at a suitable position on the roof through the fixing seat 8, and then the mounting seat 2 is moved out of the rainwater tank 3 by the hydraulic rod 201. Then the staff can climb onto the rainwater tank 3 through the ladder frame 302 and install the evaporative condenser body 1 on the mounting seat 2 for use;

[0042] Then fix the roof drainage connection seat 5 to the outer wall, connect the upper rainwater pipe joint 501 to the roof drainage pipe, connect the lower rainwater pipe joint 501 to the drainage pipe on the outer wall, and then select a connection hose 705 of appropriate length according to actual needs, connect one end of the connection hose 705 to the rainwater recovery seat 7, and the other end to one end of the double-headed pipe joint 305, and connect the other end of the double-headed pipe joint 305 to the tap water pipe;

[0043] On rainy days, rainwater will be collected through the roof and flow into the roof drainage connection seat 5. At this time, the flowing water will drive the impeller 502 to rotate, and the impeller 502 will drive the driving wheel 503 to rotate, so that the driving wheel 503 drives the electric push rod 601 connected to the driven wheel 602 to rotate, and the electric push rod 601 will drive the connected L-shaped rod 603 to rotate, so that the L-shaped rod 603 drives the labor-saving pressure rod 604 connected to the connecting rod 606 to reciprocate and swing;

[0044] Then the reciprocating force-saving pressure rod 604 drives the piston plate 701 connected to the ball head rod 702 to move reciprocatingly through the slide groove 605, so that the rainwater filtered by the filter screen 704 is sucked into the rainwater recovery seat 7 through the water receiving pipe 703, and then the piston plate 701 injects the rainwater into the rainwater tank 3 through the connecting hose 705 for collection, and the evaporative condenser body 1 can pump out the rainwater for use through the telescopic sleeve 101;

[0045] When the water level sensor in the rainwater tank 3 detects that the water level has reached the maximum value, the electric push rod 601 will be controlled to drive the driven wheel 602 to separate from the driving wheel 503 and stop collecting rainwater. When the water level sensor in the rainwater tank 3 detects that the water level has reached the minimum value and there is no rainwater to collect, an appropriate amount of water will be injected into the rainwater tank 3 through the tap water pipe for use;

[0046] When it is necessary to clean the rainwater tank 3, first drain the water inside it, then inject water mixed with cleaning agent into the water receiving trough 403, pump it out through the water pump 402 and inject it into the flushing pipe A401 and the flushing pipe B405. At this time, the motor 404 is used to drive the flushing pipe A401 and the flushing pipe B405 to rotate, and then under the action of the annular rack 303, the flushing pipe B405 connected to the transmission wheel 406 will be driven to rotate, so as to flush the rainwater tank 3. At the same time, the top of the flushing pipe B405 and the end of the flushing pipe A401 close to the flushing pipe B405 are both spherical structures, which is conducive to flushing the corners in the rainwater tank 3, and the flushing sewage is discharged through the cleaning sewage pipe 304.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A water-saving evaporative condenser, comprising an evaporative condenser body (1), characterized in that: A mounting seat (2) is fixedly mounted on the bottom of the evaporative condenser body (1), a hydraulic rod (201) is connected and fixedly mounted on the bottom end of the mounting seat (2), the hydraulic rod (201) is connected and fixedly mounted to the inner wall of the rainwater tank (3), a protective cover (202) is connected and fixedly mounted on the top end of the mounting seat (2), a rainwater tank (3) is slidably mounted on the outer side of the mounting seat (2), a flushing mechanism (4) is rotatably mounted in the rainwater tank (3), a roof drainage connection seat (5) is disposed on one side of the rainwater tank (3), rainwater pipe joints (501) are connected and fixedly mounted on the upper and lower ends of the roof drainage connection seat (5), the middle part of the rainwater pipe joint (501) located on the lower side is in a concave structure, an impeller (502) is rotatably mounted in the roof drainage connection seat (5), one end of the impeller (502) passes through the inner wall of the roof drainage connection seat (5) and extends to the outside and is connected and fixedly mounted to a driving wheel (503), the roof drainage connection seat ( 5) a transmission mechanism (6) is provided on the outer side for rotation connection, the transmission mechanism (6) comprising an electric push rod (601), the electric push rod (601) is rotationally connected to the roof drainage connection seat (5), one end of the electric push rod (601) is connected and fixedly provided with a driven wheel (602), the driven wheel (602) is meshed with the driving wheel (503) for transmission, the other end of the electric push rod (601) is connected and fixedly provided with an L-shaped rod (603), the other end of the L-shaped rod (603) is rotationally connected to the roof drainage connection seat (5), one end of the electric push rod (601) is connected and fixedly provided with a driven wheel (602), the driven wheel (602) is meshed with the driving wheel (503) for transmission, A connecting rod (606) is rotatably connected, and a labor-saving pressure rod (604) is rotatably connected to the other end of the connecting rod (606). The other end of the labor-saving pressure rod (604) is rotatably connected to the top surface of the rainwater recovery seat (7). A sliding groove (605) is provided on the side of the labor-saving pressure rod (604) facing the rainwater recovery seat (7). The bottom of the roof drainage connection seat (5) is connected and fixedly provided with the rainwater recovery seat (7), and a fixing seat (8) is welded and fixedly provided on the lower surface of the rainwater tank (3).

2. A water-saving evaporative condenser according to claim 1, characterized in that: The water inlet end of the evaporative condenser body (1) is connected and fixedly provided with a telescopic sleeve (101), and the other end of the telescopic sleeve (101) is connected and fixedly provided through the inner wall of the rainwater tank (3).

3. A water-saving evaporative condenser according to claim 1, characterized in that: The middle part of the rainwater tank (3) is arranged in a concave structure, the top surface of the rainwater tank (3) is arranged in an inclined structure, a guardrail (301) is installed on the top surface of the rainwater tank (3), a ladder frame (302) is connected and fixedly arranged on one side of the rainwater tank (3), an annular rack (303) is connected and fixedly arranged on the inner wall of the rainwater tank (3), a cleaning and drainage pipe (304) is connected and fixedly arranged through the bottom end of the rainwater tank (3), and a double-headed pipe joint (305) is connected and fixedly arranged through the top side of the rainwater tank (3).

4. A water-saving evaporative condenser according to claim 3, characterized in that: The flushing mechanism (4) comprises a flushing pipe A (401), one end of which is rotatably connected to the inner wall of the rainwater tank (3), a water pump (402) is rotatably connected to the bottom end of the flushing pipe A (401), the water pump (402) is fixedly connected to the outer wall of the rainwater tank (3), the output end of the water pump (402) is fixedly connected to a water receiving trough (403), one end of the flushing pipe A (401) extends to the inner wall of the rainwater tank (3) and is fixedly connected to a motor (404), and the motor (404) is fixedly connected to the inner wall of the rainwater tank (3).

5. A water-saving evaporative condenser according to claim 4, characterized in that: The other end of the flushing tube A (401) is rotatably connected to a flushing tube B (405), and the bottom end of the flushing tube B (405) is fixedly connected to a transmission wheel (406), which is meshed with the annular rack (303) for transmission. The top end of the flushing tube B (405) and the end of the flushing tube A (401) close to the flushing tube B (405) are both spherical structures.

6. A water-saving evaporative condenser according to claim 5, characterized in that: A piston plate (701) is slidably provided inside the rainwater recovery seat (7), and a ball head rod (702) is fixedly provided on the top surface of the piston plate (701). The top end of the ball head rod (702) passes through the inner wall of the rainwater recovery seat (7) and extends to the outside and is slidably provided with the inner wall of the slide groove (605). A water receiving pipe (703) is fixedly provided through one side of the rainwater recovery seat (7) close to the lower rainwater pipe joint (501), and the other end of the water receiving pipe (703) is fixedly provided through the inner wall of the lower rainwater pipe joint (501). A filter screen (704) is fixedly provided at one end of the water receiving pipe (703) located inside the rainwater pipe joint (501). A connecting hose (705) is fixedly provided through the other side of the rainwater recovery seat (7), and the other end of the connecting hose (705) is fixedly provided with one end of the double-headed pipe joint (305).

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