Cooling power detection equipment for mining water cooling system

Abstract

The invention relates to the technical field of equipment power detection, in particular to mining water cooling system heat dissipation power detection equipment. Comprising a water-cooling tank, a water storage tank and a backflow tank, the water cooling box comprises an inner-layer shell and an outer-layer shell, a cooling cavity of a sealing structure is formed between the inner-layer shell and the outer-layer shell, and a plurality of first water cooling channels are arranged on the peripheral side, the upper side and the lower side of the cooling cavity side by side; cold water conveying pipes are connected between the input ends of the first water cooling channels and the bottom end of the inner cavity of the water storage tank. The backflow box is arranged at the bottom end of the water cooling box, and drainage pipes are connected between the output ends of the first water cooling channels and the inner side of the backflow box. The bottom end of the backflow box communicates with a water outlet pipe, and a second temperature sensor is installed on the water outlet pipe. The device has the advantages of uniform cooling and accurate heat dissipation power test.

Description

Technical Field

[0001] The invention relates to the technical field of equipment power detection, in particular to a heat dissipation power detection device for a mine water cooling system. Background Art

[0002] A mining water cooling system is a heat dissipation system designed specifically for mining equipment. It is usually used to cool mining machinery, engines, motors, and other high-power equipment. This type of system circulates water or water-based coolant inside the equipment to absorb heat and take it away, thereby ensuring the normal operation of the equipment and extending the life of the equipment. The following are some key points and design considerations for heat dissipation in mining water cooling systems:

[0003] The system consists of the following parts: Coolant: Water or water-based coolant with antifreeze and preservatives is usually used to adapt to the extreme temperature environment that may occur in mines. There are several ways to dissipate heat: Heat conduction: The coolant absorbs heat from the equipment through heat conduction. Convection: The coolant transfers heat to the air or other media through the radiator during the circulation process, thereby reducing its own temperature. Radiation: In some designs, the radiator can also dissipate heat to the surrounding environment through radiation.

[0004] The conventional heat dissipation structure in the prior art is to set a cooling box with a cooling cavity, on which a water inlet pipe and a drain pipe are connected, and mining equipment (such as a motor) is installed on the inner side of the cooling box, and water is pumped into the cooling cavity by a water pump. The liquid absorbs heat to cool the mining equipment. In order to ensure the good operation of the mining equipment, it is necessary to monitor the heat dissipation power of the water-cooled heat dissipation system; the conventional detection method is to perform a comprehensive calculation through the inlet water temperature, the outlet water temperature and the room temperature. During cooling, if the cooling cavity is set up with a spiral channel, the water body cannot be cooled evenly. If the cooling cavity is set up conventionally, when cooling water enters from the bottom, the heated water is discharged from the upper end, and the temperature of the discharged water body is higher than that of the bottom of the cooling cavity, which is easy to affect the test results. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the background technology and to provide a heat dissipation power detection device for a mine water cooling system.

[0006] The technical solution of the present invention is a device for detecting heat dissipation power of a mine water cooling system, comprising:

[0007] A water cooling box, the water cooling box comprises an inner shell and an outer shell, a third temperature sensor and a fourth temperature sensor are respectively installed on the inner and outer sides of the water cooling box, a cooling cavity with a sealed structure is provided between the inner shell and the outer shell, and a plurality of first water cooling channels are arranged side by side on the peripheral side and the upper and lower sides of the cooling cavity;

[0008] A water storage tank, wherein a cold water delivery pipe is connected between the input ends of the plurality of first water cooling channels and the bottom end of the inner cavity of the water storage tank;

[0009] A water pump, the water pump is installed on the water storage tank, the input end of the water pump is connected to a water pump water inlet pipe, a first temperature sensor is installed on the water pump water inlet pipe, and a water pump water delivery pipe is connected between the output end of the water pump and the water storage tank;

[0010] A reflux box is arranged at the bottom end of the water cooling box, and a drainage pipe is connected between the output ends of the plurality of first water cooling channels and the inner side of the reflux box; a water outlet pipe is arranged at the bottom end of the reflux box, and a second temperature sensor is installed on the water outlet pipe;

[0011] and a controller.

[0012] Preferably, a push plate is slidably provided at the inner bottom end of the water tank, a plurality of drainage holes are opened on the push plate, and the plurality of drainage holes are arranged one-to-one corresponding to the top openings of the plurality of cold water delivery pipes, and a linear drive mechanism for driving the push plate to move is installed on the water tank.

[0013] Preferably, a liquid level sensor is installed on the inner side of the water tank.

[0014] Preferably, a square seat is provided at the upper end of the push plate.

[0015] Preferably, a water outlet cylinder is connected between the water outlet pipe and the inner cavity of the reflux box, a rotating shaft is installed on the inner side of the water outlet cylinder, and a plurality of rotating blades are arranged on the rotating shaft.

[0016] Preferably, a funnel cavity is provided inside the reflux box, and output ends of a plurality of drainage pipes are centrally arranged at one side of the funnel cavity.

[0017] Preferably, the front side of the water cooling box is open, and a front cover plate is detachably installed on the front side of the water cooling box, a plurality of second water cooling channels are vertically opened on the front cover plate, a plurality of first through holes are opened on the water storage tank, and a plurality of second through holes are opened on the reflux tank, and the plurality of second water cooling channels, the plurality of first through holes and the plurality of second through holes are all arranged in one-to-one correspondence.

[0018] Preferably, the outer shell, the water storage tank, the reflux tank, the cold water delivery pipe and the drain pipe are all provided with a heat insulation coating.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] 1. By providing a plurality of independent and unconnected first water cooling channels, the initial water temperature flowing into the plurality of first water cooling channels is made consistent, which helps to improve the uniformity of heat dissipation compared with the method of cooling by spiral water pipes.

[0021] 2. During the cooling process, the water inside multiple cold water delivery pipes flows into the inner side of the reflux box, where the water collides and mixes. Compared with the method of continuously filling the hollow cooling chamber with water, the measured water outlet temperature is more accurate (because the water in the cooling chamber overflows through the upper drain port, and the water inlet is usually set at the bottom, resulting in inconsistent water temperatures at the upper and lower ends of the cooling chamber, so the discharged water is higher in temperature than the water inside the cooling chamber).

[0022] 3. The outer shell, water storage tank, reflux tank, cold water delivery pipe and drain pipe are all provided with thermal insulation coatings. The setting of the thermal insulation coatings can reduce the impact of the outside temperature on the inside of the water cooling box.

[0023] 4. The first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are all electrically connected to the controller, and the controller can adopt a PLC controller or a microprocessor controller, and the controller is used to analyze and process a plurality of detection data, and finally measure the heat dissipation power; it has the advantage of a high degree of automation.

[0024] 5. When the push plate is driven to move, if the overlapping area between the drainage hole and the upper end opening of the cold water delivery pipe is larger, the water output will be greater, and vice versa, the water output will be smaller, thereby increasing the flow rate through the first water cooling channel per unit time.

[0025] 6. Since the water inside the reflux box is discharged to one side, the impact force of the rotating blades at various positions is inconsistent. Due to the difference in impact force, multiple rotating blades can rotate around the rotating axis. It should be added that the rotating blades are installed on the inside of the water outlet cylinder through ball bearings, and the upper ends of the rotating blades extend to the inside of the reflux box. During the rotation process, multiple rotating blades can stir the water inside the reflux box and the water outlet cylinder, which helps to stir the water inside the funnel cavity and ensure that the temperature of the water discharged through the water outlet cylinder is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 and Figure 2 All of them are structural schematic diagrams of the present invention.

[0027] Figure 3 It is an exploded view of the present invention.

[0028] Figure 4 It is a cross-sectional structural diagram of the water cooling box in the present invention.

[0029] Figure 5 It is a cross-sectional structural diagram of the water storage tank in the present invention.

[0030] Figure numerals: 1. water cooling box; 101. first water cooling channel; 2. water storage tank; 3. reflux box; 301. funnel cavity; 4. water pump; 41. water inlet pipe of water pump; 42. water delivery pipe of water pump; 5. linear drive mechanism; 6. water outlet cylinder; 7. water outlet pipe; 81. first temperature sensor; 82. second temperature sensor; 9. front cover plate; 901. second water cooling channel; 10. cold water delivery pipe; 11. drain pipe; 12. rotating blades; 13. square seat; 14. push plate; 141. drain hole. DETAILED DESCRIPTION

[0031] Embodiment 1

[0032] like Figure 1-Figure 4 As shown, a device for detecting heat dissipation power of a mine water cooling system proposed in this embodiment includes a water cooling box 1, a water storage tank 2, a reflux box 3, a water pump 4 and a controller.

[0033] The water cooling box 1 includes an inner shell and an outer shell. A third temperature sensor and a fourth temperature sensor are installed on the inner and outer sides of the water cooling box 1 respectively. A cooling cavity with a sealed structure is provided between the inner and outer shells. A plurality of first water cooling channels 101 are arranged side by side on the surrounding side and the upper and lower sides of the cooling cavity.

[0034] A cold water delivery pipe 10 is connected between the input ends of the multiple first water cooling channels 101 and the bottom end of the inner cavity of the water storage tank 2; the water pump 4 is installed on the water storage tank 2, the input end of the water pump 4 is connected to the water pump water inlet pipe 41, the water pump water inlet pipe 41 is installed with a first temperature sensor 81, and the output end of the water pump 4 is connected to the water storage tank 2 with a water pump water delivery pipe 42; the reflux tank 3 is arranged at the bottom end of the water cooling box 1, and the output ends of the multiple first water cooling channels 101 are connected to the inner side of the reflux tank 3 with a drain pipe 11; the bottom end of the reflux tank 3 is connected with a water outlet pipe 7, and the water outlet pipe 7 is installed with a second temperature sensor 82.

[0035] The outer shell, the water storage tank 2, the reflux tank 3, the cold water delivery pipe 10 and the drain pipe 11 are all provided with a thermal insulation coating. By providing the thermal insulation coating, the influence of the external temperature on the inside of the water cooling box 1 can be reduced.

[0036] Specifically, the following is a method for calculating heat dissipation, as shown below:

[0037] 1. Calculation of standard temperature difference of radiator heat dissipation, △T (temperature difference) = (inlet water temperature + outlet water temperature) ÷ 2 - (room temperature). For example, the inlet water temperature is 30℃, the outlet water temperature is 90℃, and the internal temperature of the water cooling box 1 is 35℃, that is: (30℃ + 90℃) ÷ 2 - 35℃ = 25℃, and the measured standard temperature difference △T = 25℃; the heat dissipation of the radiator usually refers to the standard heat dissipation under the standard temperature difference △T = 25℃, and the premise is that the room temperature is 35℃.

[0038] 2. Theoretical calculation of heat dissipation of trial-produced radiator: Q = K × F × △T, where K: heat transfer coefficient, F: heat dissipation area, △T: temperature difference, and heat dissipation area and conduction coefficient are known items.

[0039] In summary, the heat dissipation power can be calculated using the collected water inlet temperature, water outlet temperature and the internal temperature of the water cooling box 1. It should be added that the interior of the water cooling box 1 is used to install mining electrical equipment; water cooling of the mining electrical equipment is achieved by setting up a water cooling structure.

[0040] In the technical solution, by setting up a plurality of independent and unconnected first water cooling channels 101, the initial water temperature flowing into the plurality of first water cooling channels 101 is consistent, which helps to improve the uniformity of heat dissipation compared to cooling by adopting a spiral water pipe; during the cooling process, the water inside the plurality of cold water delivery pipes 10 flows into the inner side of the reflux box 3 in a concentrated manner, and the water collides and mixes inside the reflux box 3, which measures the outlet water temperature more accurately compared to continuously filling the hollow cooling cavity with water (because the water in the cooling cavity overflows through the upper drain port, and since the water inlet is usually set at the bottom, the water temperature at the upper and lower ends of the cooling cavity is inconsistent, so the discharged water temperature is higher than the water temperature inside the cooling cavity), and the water is discharged through the outlet pipe 7 after converging to the inside of the reflux box 3, and the installed second temperature sensor 82 can measure the outlet water temperature.

[0041] Furthermore, the first temperature sensor 81, the second temperature sensor 82, the third temperature sensor and the fourth temperature sensor are all electrically connected to the controller, and the controller can adopt a PLC controller or a microprocessor controller, and use the controller to analyze and process multiple detection data, and finally measure the heat dissipation power. It should be added that a lamp is also provided in the present technical solution, and the light emitted by the lamp can be adjusted in color. If the heat dissipation power is large, the lamp displays green, and if the heat dissipation power is small, it displays red, so that the heat dissipation power can be felt more intuitively.

[0042] Embodiment 2

[0043] like Figure 5As shown, a device for detecting heat dissipation power of a mining water cooling system proposed in this embodiment, compared with the first embodiment, in this embodiment, a push plate 14 is slidably provided at the inner bottom end of the water storage tank 2, and a plurality of drainage holes 141 are opened on the push plate 14, and the plurality of drainage holes 141 are arranged one by one corresponding to the top openings of the plurality of cold water delivery pipes 10, and a linear drive mechanism 5 for driving the push plate 14 to move is installed on the water storage tank 2, and the linear drive mechanism 5 is one of a cylinder, a hydraulic cylinder or an electric push rod. When driving the push plate 14 to move, if the overlap area of ​​the drainage hole 141 and the upper end opening of the cold water delivery pipe 10 is larger, the water output is larger, and vice versa, the water output is smaller, thereby making the water passing through the first water cooling channel per unit time. The larger the flow rate in 101; a liquid level sensor is installed on the inner side of the water tank 2, and the internal liquid level range of the water tank 2 is set on the controller. When it is lower than the set minimum threshold, the water pump 4 starts to transport external cold water to the inside of the water tank 2. When the liquid level is higher than the set maximum threshold, the water pump 4 stops working. It should be supplemented that the maximum output flow of the water pump 4 is greater than the sum of the maximum flow rates discharged by multiple cold water delivery pipes 10; by setting the liquid level range, the internal liquid level of the water tank 2 is prevented from being too low, thereby ensuring that the water body inside the water tank 2 flows evenly to the inside of multiple cold water delivery pipes 10; a square seat 13 is provided at the upper end of the push plate 14, and the setting of the square seat 13 can reduce the water flow rate transported to the inside of the water tank 2.

[0044] Embodiment 3

[0045] like Figure 3 As shown, the present embodiment proposes a device for detecting heat dissipation power of a mining water cooling system. Compared with the first embodiment, in the present embodiment, a water outlet cylinder 6 is connected between the water outlet pipe 7 and the inner cavity of the reflux box 3, a rotating shaft is installed on the inner side of the water outlet cylinder 6, and a plurality of rotating blades 12 are arranged on the rotating shaft; a funnel cavity 301 is arranged on the inner side of the reflux box 3, and the output ends of the plurality of drainage pipes 11 are concentratedly arranged on one side of the funnel cavity 301; it should be supplemented that, since the water inside the reflux box 3 is concentratedly discharged to one side, the impact force of the rotating blades 12 at various positions is inconsistent, because there is an impact force The difference enables multiple rotating blades 12 to rotate around the rotating shaft. It should be supplemented that the rotating blades 12 are installed on the inner side of the water outlet cylinder 6 through ball bearings, and the upper ends of the rotating blades 12 extend to the inner side of the reflux box 3. Multiple rotating blades 12 can stir the water inside the reflux box 3 and the water outlet cylinder 6 during rotation, which helps to stir the water inside the funnel cavity 301 and ensure that the temperature of the water discharged through the water outlet cylinder 6 is consistent. The upper ends of the rotating blades 12 are arranged to extend into the funnel cavity 301, so as to achieve stirring of the liquid inside the funnel cavity 301.

[0046] Embodiment 4

[0047] like Figure 3As shown, a mine water cooling system heat dissipation power detection device proposed in this embodiment, compared with the first embodiment, in this embodiment, the front side of the water cooling box 1 is set as an opening, and the front side of the water cooling box 1 is detachably installed with a front side cover plate 9, and a plurality of second water cooling channels 901 are vertically opened on the front side cover plate 9, a plurality of first through holes are opened on the water storage tank 2, and a plurality of second through holes are opened on the reflux box 3, and the plurality of second water cooling channels 901, the plurality of first through holes and the plurality of second through holes are all arranged in a one-to-one correspondence; in this technical solution, a detachable front side cover plate 9 is provided so that the staff can easily put the mine electrical equipment into the inner side of the water cooling box 1, and then the front side cover plate 9 needs to be connected and fixed to the water cooling box 1. It should be supplemented that the water cooling box 1 and the front side cover plate 9 are connected by a connecting piece, and the connecting piece can be selected from bolts and butterfly bolts, and A first ear plate and a second ear plate are connected to the water cooling box 1 and the front cover plate 9 respectively, and a bolt is fixed to the first ear plate. A through hole for the bolt to pass through is opened on the second ear plate. During installation, the through hole is aligned with the bolt, and then the front cover plate 9 and the water cooling box 1 are locked and fixed with a butterfly bolt; in order to ensure the sealing of the peripheral side of the front cover plate 9, in the technical solution, sealing rings are provided on the peripheral side and the inner side of the front cover plate 9; after the front cover plate 9 is installed, the multiple second water cooling channels 901, the multiple first through holes and the multiple second through holes are all vertically corresponding to each other; the cooling water inside the water storage tank 2 enters the inner side of the second water cooling channel 901 through the first through hole, which can absorb heat from the front cover plate 9, and the front cover plate 9 absorbs the heat inside the water cooling box 1, and finally the cooling water flows into the inside of the reflux box 3 through the second through hole.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A mine water cooling system heat dissipation power detection device, characterized in that: include: A water cooling box (1), the water cooling box (1) comprising an inner shell and an outer shell, a third temperature sensor and a fourth temperature sensor being installed on the inner and outer sides of the water cooling box (1) respectively, a cooling cavity with a sealed structure being provided between the inner shell and the outer shell, and a plurality of first water cooling channels (101) being arranged side by side on the peripheral side and the upper and lower sides of the cooling cavity; A water storage tank (2), wherein a cold water delivery pipe (10) is connected between the input ends of the plurality of first water cooling channels (101) and the bottom end of the inner cavity of the water storage tank (2); A water pump (4), the water pump (4) is mounted on the water storage tank (2), the input end of the water pump (4) is connected to a water pump water inlet pipe (41), a first temperature sensor (81) is mounted on the water pump water inlet pipe (41), and a water pump water delivery pipe (42) is connected between the output end of the water pump (4) and the water storage tank (2); A reflux box (3), the reflux box (3) being arranged at the bottom end of the water cooling box (1), and a drainage pipe (11) being connected between the output ends of the plurality of first water cooling channels (101) and the inner side of the reflux box (3); a water outlet pipe (7) being arranged at the bottom end of the reflux box (3), and a second temperature sensor (82) being installed on the water outlet pipe (7); and a controller.

2. The heat dissipation power detection device for a mine water cooling system according to claim 1 is characterized in that: A push plate (14) is slidably arranged at the inner bottom end of the water storage tank (2), and a plurality of drainage holes (141) are provided on the push plate (14). The plurality of drainage holes (141) are arranged in one-to-one correspondence with the top openings of the plurality of cold water delivery pipes (10). A linear drive mechanism (5) for driving the push plate (14) to move is installed on the water storage tank (2).

3. The heat dissipation power detection device for a mine water cooling system according to claim 2 is characterized in that: A liquid level sensor is installed on the inner side of the water storage tank (2).

4. The heat dissipation power detection device for a mine water cooling system according to claim 2 is characterized in that: The upper end of the push plate (14) is provided with a square seat (13).

5. The heat dissipation power detection device for a mine water cooling system according to claim 1 is characterized in that: A water outlet cylinder (6) is connected between the water outlet pipe (7) and the inner cavity of the return box (3). A rotating shaft is installed on the inner side of the water outlet cylinder (6), and a plurality of rotating blades (12) are arranged on the rotating shaft.

6. The device for detecting heat dissipation power of a mine water cooling system according to claim 5, characterized in that: A funnel cavity (301) is arranged inside the reflux box (3), and output ends of a plurality of drainage pipes (11) are centrally arranged at one side of the funnel cavity (301).

7. The heat dissipation power detection device for a mine water cooling system according to claim 1 is characterized in that: The front side of the water cooling box (1) is open, and a front cover plate (9) is detachably mounted on the front side of the water cooling box (1). A plurality of second water cooling channels (901) are vertically opened on the front cover plate (9), a plurality of first through holes are opened on the water storage tank (2), and a plurality of second through holes are opened on the reflux box (3). The plurality of second water cooling channels (901), the plurality of first through holes, and the plurality of second through holes are all arranged in a one-to-one correspondence.

8. The heat dissipation power detection device for a mine water cooling system according to claim 1 is characterized in that: The outer shell, the water storage tank (2), the return tank (3), the cold water delivery pipe (10) and the drainage pipe (11) are all provided with a heat insulation coating.

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