Countercurrent closed cooling tower

Abstract

The utility model relates to the field of closed cooling towers, in particular to a countercurrent closed cooling tower which comprises a cooling tower body. A conical funnel is installed in the cooling tower body, a recovery pipe is fixed to the bottom of the conical funnel, and the end, away from the conical funnel, of the recovery pipe penetrates through the cooling tower body and extends out of the cooling tower body; a water tank is mounted on the outer wall of the cooling tower body; one end of the recovery pipe away from the conical funnel is positioned in the water tank; a filter frame is arranged in the water tank and located under the end, away from the conical funnel, of the recovery pipe. An annular pipe is installed on the inner wall of the cooling tower body, and leakage holes are formed in the outer wall of the annular pipe. A water pump is installed at the bottom in the water tank, a water pipe is installed at one end of the water pump, and the end, away from the water pump, of the water pipe penetrates through the cooling tower body and is communicated with the annular pipe.

Description

Technical Field

[0001] The utility model relates to the field of closed cooling towers, in particular to a countercurrent closed cooling tower. Background Art

[0002] Closed cooling tower, also known as evaporative air cooler, is a closed cooling tower. It places a tubular heat exchanger inside the tower and ensures the cooling effect through heat exchange between circulating air, spray water and circulating water.

[0003] After searching, the China Patent Network discloses a countercurrent closed cooling tower with the publication number CN220153310U. Although the water inside the water tank is sprayed into the interior of the tower body by the spraying component to cool the flue gas entering the tower body, the water mist absorbs the dust mixed in the flue gas to form water droplets that flow into the water tank and are filtered through the filter net to prevent dust from entering the interior of the water pump, thereby affecting the use of the water pump and reducing its service life. At the same time, the flue gas is filtered again through the filter layer to reduce the discharge of harmful gases into the air. The filter layer is conveniently replaced by the fixed component in combination with the movable component, but the filter net is not easy to disassemble, so it is not easy to clean the filter net.

[0004] Therefore, a countercurrent closed cooling tower is proposed. Utility Model Content

[0005] The utility model aims to provide a counter-flow closed cooling tower.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A countercurrent closed cooling tower, comprising:

[0008] Cooling tower body;

[0009] A conical funnel is installed inside the cooling tower body, a recovery pipe is fixed at the bottom of the conical funnel, and one end of the recovery pipe away from the conical funnel penetrates the cooling tower body and extends to the outside of the cooling tower body;

[0010] A water tank is installed on the outer wall of the cooling tower body;

[0011] One end of the recovery pipe away from the conical funnel is located inside the water tank;

[0012] A filter frame is provided in the water tank, and the filter frame is located directly below the end of the recovery pipe away from the conical funnel;

[0013] An annular tube is installed on the inner wall of the cooling tower body, and a leakage hole is opened on the outer wall of the annular tube;

[0014] A water pump is installed at the bottom of the water tank, a water pipe is installed at one end of the water pump, and one end of the water pipe away from the water pump penetrates the cooling tower body and is connected with the annular pipe.

[0015] Preferably, threaded holes are provided on the front and rear end surfaces of the water tank, and threaded rods are threadedly connected in the two threaded holes.

[0016] Preferably, a rotating shaft is fixed to one end of the two threaded rods, and a fixing plate is fixed to the other end of the two threaded rods.

[0017] Preferably, one end of the fixing plate abuts against the outer wall of the filter frame.

[0018] Preferably, an electric heating wire is installed inside the water tank, a temperature sensor is installed on the inner wall of the water tank, and a controller is installed on the outer wall of the water tank.

[0019] Preferably, the electric heating wire, the temperature sensor and the controller are all electrically connected to an external power source;

[0020] The controller is electrically connected to the electric heating wire;

[0021] The temperature sensor is electrically connected to the controller.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model changes the installation method and installation position of the filter frame. First, the filter frame is installed on the outside of the cooling tower body, so it is easy to disassemble the filter frame. Secondly, the rotating shaft drives the threaded rod to move in the threaded hole by rotating the rotating shaft. After the fixing plate at one end of the threaded rod abuts against the filter frame, the filter frame can be disassembled. Therefore, when disassembling the filter frame, it is only necessary to rotate the rotating shaft in the opposite direction compared with the former. The rotating shaft drives the threaded rod to move in the threaded hole. After the fixing plate at one end of the threaded rod is no longer abutted against the filter frame, the filter frame can be disassembled. In summary, compared with the existing ones, the utility model is easy to disassemble the filter frame, thereby facilitating the cleaning of the filter frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a countercurrent closed cooling tower in an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure inside the cooling tower body in the embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the fixing plate in the embodiment of the utility model;

[0027] Figure 4It is a schematic diagram of the structure of the threaded hole in the embodiment of the utility model.

[0028] In the figure: 1. Cooling tower body; 2. Conical funnel; 3. Recovery pipe; 4. Water tank; 5. Water pipe; 6. Ring pipe; 7. Filter frame; 8. Threaded hole; 9. Threaded rod; 10. Rotating shaft; 11. Fixed plate; 12. Temperature sensor; 13. Controller. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. Example 1

[0031] See also Figure 1-4 A countercurrent closed cooling tower comprises: a cooling tower body 1; a conical funnel 2 is installed inside the cooling tower body 1, a recovery pipe 3 is fixed at the bottom of the conical funnel 2, and the end of the recovery pipe 3 away from the conical funnel 2 passes through the cooling tower body 1 and extends to the outside of the cooling tower body 1; a water tank 4 is installed on the outer wall of the cooling tower body 1; the end of the recovery pipe 3 away from the conical funnel 2 is located inside the water tank 4; a filter frame 7 is arranged in the water tank 4, and the filter frame 7 is located directly below the end of the recovery pipe 3 away from the conical funnel 2; the cooling tower body 1 is provided with a filter frame 7 ... An annular tube 6 is installed on the inner wall of the tower body 1, and a leakage hole is opened on the outer wall of the annular tube 6; a water pump is installed at the bottom of the water tank 4, and a water pipe 5 is installed at one end of the water pump. The end of the water pipe 5 away from the water pump passes through the cooling tower body 1 and is connected with the annular tube 6. Threaded holes 8 are opened on the front and rear end faces of the water tank 4, and threaded rods 9 are threadedly connected in the two threaded holes 8. A rotating shaft 10 is fixed to one end of the two threaded rods 9, and a fixing plate 11 is fixed to the other end of the two threaded rods 9. One end of the fixing plate 11 abuts against the outer wall of the filter frame 7.

[0032] Specifically, the utility model changes the installation method and installation position of the filter frame 7. First, the filter frame 7 is installed on the outside of the cooling tower body 1, so it is easy to disassemble the filter frame 7. Secondly, by rotating the rotating shaft 10, the rotating shaft 10 drives the threaded rod 9 to move in the threaded hole 8. After the fixing plate 11 at one end of the threaded rod 9 abuts against the filter frame 7, the filter frame 7 can be disassembled. Therefore, when disassembling the filter frame 7, it is only necessary to rotate the rotating shaft 10 in the opposite direction compared with the former. The rotating shaft 10 drives the threaded rod 9 to move in the threaded hole 8. After the fixing plate 11 at one end of the threaded rod 9 is not abutted against the filter frame 7, the filter frame 7 can be disassembled. In summary, compared with the existing ones, the utility model is easy to disassemble the filter frame 7, so as to facilitate the cleaning of the filter frame 7. Example 2

[0033] See also Figure 1 , 4 A countercurrent closed cooling tower, an electric heating wire is installed inside the water tank 4, a temperature sensor 12 is installed on the inner wall of the water tank 4, and a controller 13 is installed on the outer wall of the water tank 4. The electric heating wire, the temperature sensor 12, and the controller 13 are all electrically connected to an external power supply; the controller 13 is electrically connected to the electric heating wire; the temperature sensor 12 is electrically connected to the controller 13.

[0034] Specifically, the temperature sensor 12 in the present embodiment is composed of a high-temperature sensing unit and a low-temperature sensing unit. The sensing range of the high-temperature sensing unit is above 8°C, and the sensing range of the low-temperature sensing unit is above 5°C. During specific operation, the high-temperature sensing unit and the low-temperature sensing unit will simultaneously detect the temperature of the water in the water tank 4. If the water temperature is lower than 5°C, the low-temperature sensing unit will start the electric heating wire through the controller 13, and the electric heating wire will heat the water temperature. If the water temperature is higher than 8°C, the high-temperature sensing unit will turn off the electric heating wire through the controller 13. Therefore, the utility model can always keep the water temperature in a reasonable range, so that the water will not freeze in winter, thereby improving the overall work efficiency. Moreover, by stopping heating when the water temperature is high, the power loss can be reduced, thereby reducing the overall cost of use.

[0035] Working principle:

[0036] Firstly, by changing the installation method and the installation position of the filter frame 7, the filter frame 7 is first installed on the outside of the cooling tower body 1, so it is convenient to disassemble the filter frame 7, and secondly, by rotating the rotating shaft 10, the rotating shaft 10 drives the threaded rod 9 to move in the threaded hole 8, and after the fixing plate 11 at one end of the threaded rod 9 abuts against the filter frame 7, the filter frame 7 can be disassembled. Therefore, when disassembling the filter frame 7, it is only necessary to rotate the rotating shaft 10 in the opposite direction compared with the former, and the rotating shaft 10 drives the threaded rod 9 to move in the threaded hole 8, and after the fixing plate 11 at one end of the threaded rod 9 is not abutted against the filter frame 7, the filter frame 7 can be disassembled. In summary, compared with the existing ones, the utility model is convenient for disassembling the filter frame 7, thereby facilitating the cleaning of the filter frame 7.

[0037] Secondly, if the water temperature is lower than 5°C, the low-temperature sensing unit will start the electric heating wire through the controller 13, and the electric heating wire will heat the water temperature. If the water temperature is higher than 8°C, the high-temperature sensing unit will turn off the electric heating wire through the controller 13. Therefore, the utility model can always keep the water temperature in a reasonable range, so that the water will not freeze in winter, thereby improving the overall work efficiency, and stopping heating when the water temperature is high can reduce power loss and reduce the overall cost of use.

[0038] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A countercurrent closed cooling tower, It is characterized in that include: Cooling tower body (1); A conical funnel (2) is installed inside the cooling tower body (1), a recovery pipe (3) is fixed at the bottom of the conical funnel (2), and an end of the recovery pipe (3) away from the conical funnel (2) passes through the cooling tower body (1) and extends to the outside of the cooling tower body (1); A water tank (4) is installed on the outer wall of the cooling tower body (1); The end of the recovery pipe (3) away from the conical funnel (2) is located inside the water tank (4); A filter frame (7) is provided in the water tank (4), and the filter frame (7) is located directly below the end of the recovery pipe (3) away from the conical funnel (2); An annular pipe (6) is installed on the inner wall of the cooling tower body (1), and a leakage hole is opened on the outer wall of the annular pipe (6); A water pump is installed at the bottom of the water tank (4), a water pipe (5) is installed at one end of the water pump, and the end of the water pipe (5) away from the water pump passes through the cooling tower body (1) and is connected to the annular pipe (6).

2. A countercurrent closed cooling tower according to claim 1, It is characterized in that The front and rear end surfaces of the water tank (4) are both provided with threaded holes (8), and threaded rods (9) are threadedly connected in the two threaded holes (8).

3. A countercurrent closed cooling tower according to claim 2, It is characterized in that A rotating shaft (10) is fixed to one end of each of the two threaded rods (9), and a fixing plate (11) is fixed to the other end of each of the two threaded rods (9).

4. A counter-flow closed cooling tower according to claim 3, It is characterized in that One end of the fixing plate (11) abuts against the outer wall of the filter frame (7).

5. A counter-flow closed cooling tower according to claim 1, It is characterized in that An electric heating wire is installed inside the water tank (4), a temperature sensor (12) is installed on the inner wall of the water tank (4), and a controller (13) is installed on the outer wall of the water tank (4).

6. A counter-flow closed cooling tower according to claim 5, It is characterized in that The electric heating wire, the temperature sensor (12), and the controller (13) are all electrically connected to an external power source; The controller (13) is electrically connected to the electric heating wire; The temperature sensor (12) is electrically connected to the controller (13).

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