A water resistance load box system and method for automatically adjusting water temperature and liquid level

Abstract

The application discloses a kind of water resistance load box systems of automatic regulation water temperature and liquid level, the system includes water resistance load box, fan cooler, water storage tank, water pump and high water tank;The water resistance load box with the fan cooler is connected by pipeline, the fan cooler with the water storage tank is connected by pipeline, the water storage tank with the high water tank is connected by pipeline, the high water tank with the water resistance load box is connected by pipeline;High liquid level float ball switch and low liquid level float ball switch are provided on the high water tank;The application also relates to a kind of water resistance load box systems of automatic regulation water temperature and liquid level using method.The application controls the water temperature in water resistance load box in setting value by setting temperature sensing probe in water resistance load box and setting electric temperature control valve on pipeline by system and method, avoids high temperature scale problem caused by water temperature being too high, and improves the stability of water resistance load box load test.

Description

Technical Field

[0001] This invention belongs to the field of electrical equipment technology, and in particular relates to a water resistance load cell system and its usage method that automatically adjusts water temperature and liquid level. Background Technology

[0002] Water resistance load cells are mainly used in generator commissioning and other projects. The principle of this technology is to convert electrical energy into heat energy through resistance, which is then consumed by heating water. Its structure consists of three pairs of identical plates arranged at 120° intervals within a water tank. One plate from each pair is connected to an adjacent plate from the other pair, and three wires are led out to connect to a three-phase generator, forming the water resistance load cell. Since the resistance value between two plates is directly proportional to the distance between the plates and inversely proportional to the area of ​​the plate submerged in water, and the distance between the plates is fixed, changing the resistance requires changing the submerged area of ​​the plates. Lower resistance results in a larger load, and vice versa. This principle allows for adjusting the load to commission generators and other equipment.

[0003] The performance and parameter adjustment of the generator are tested using a load cell. In the past, the use of water resistance load cells has been hampered by high-temperature scaling, which has led to a decline in the performance of the load cell electrodes and a shortened service life. Evaporation causes the liquid level to drop, and the load water level is controlled by manually adding water to the water resistance load cell. However, this method results in large fluctuations in the water level, leading to poor stability of the water resistance. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a water resistance load cell system and method for automatically adjusting water temperature and liquid level. The system and method of this invention control the water temperature in the water resistance load cell within the set value by setting a temperature probe in the water resistance load cell and setting an electric temperature control valve on the pipeline, thereby avoiding the problem of high temperature scaling caused by excessive water temperature and improving the accuracy of load testing of the water resistance load cell.

[0005] To achieve the above-mentioned objectives, the technical solution provided by this invention patent is as follows:

[0006] An automatic water resistance load cell system for regulating water temperature and level includes a water resistance load cell, a fan cooler, a water storage tank, a water pump, and a high-level water tank. The water resistance load cell is connected to the fan cooler via pipelines, the fan cooler is connected to the water storage tank via pipelines, the water storage tank is connected to the high-level water tank via pipelines, and the high-level water tank is connected to the water resistance load cell via pipelines. The water resistance load cell is provided with an overflow port. The high-level water tank is provided with a first pipeline and a second pipeline, which are respectively connected to the water resistance load cell. The first pipeline and the second pipeline are connected in parallel and then connected to the high-level water tank. An electric temperature control valve is provided on the first pipeline, and a shut-off valve is provided on the second pipeline. The high-level water tank is provided with a high-level float switch and a low-level float switch.

[0007] The aforementioned water resistance load cell is equipped with an overflow port and a temperature probe. The overflow port is connected to the fan cooler via a pipe, and the temperature probe is connected to the electric temperature control valve. The temperature probe detects the water temperature inside the water resistance load cell and feeds back the detected water temperature to the electric temperature control valve. The lower end of the water resistance load cell is connected to the water storage tank via a pipe, and a shut-off valve is installed on the pipe connecting the water resistance load cell and the water storage tank. An overflow observation mirror is installed on the pipe connecting the water resistance load cell and the fan cooler. An electrode plate is also installed inside the water resistance load cell for load testing of the water resistance load cell.

[0008] The above-mentioned water storage tank is provided with an exhaust port at the top. A water pump is installed on the pipeline connecting the water storage tank and the elevated water tank. A shut-off check valve is installed on the pipeline on both sides of the water pump.

[0009] The high-level float switch and low-level float switch in the aforementioned elevated water tank control the water level in the tank between the high-level float switch and the low-level float switch; the high-level float switch and the low-level float switch are respectively electrically connected to the water pump.

[0010] A method for using a water resistance load cell system that automatically regulates water temperature and liquid level, the method specifically includes the following steps:

[0011] The first step involves preparing an automatic water resistance load cell system for regulating water temperature and level. This system includes a water resistance load cell, a fan cooler, a water storage tank, a water pump, and a high-level water tank. The water resistance load cell is connected to the fan cooler via pipes, the fan cooler is connected to the water storage tank via pipes, the water storage tank is connected to the high-level water tank via pipes, and the high-level water tank is connected to the water resistance load cell via pipes. The water resistance load cell is equipped with an overflow outlet. The high-level water tank is equipped with a first pipe and a second pipe, which are respectively connected to the water resistance load cell. The first pipe and the second pipe are connected in parallel and then connected to the high-level water tank. An electric temperature control valve is installed on the first pipe, and a shut-off valve is installed on the second pipe. The high-level water tank is equipped with a high-level float switch and a low-level float switch.

[0012] The second step is to open the two shut-off check valves on the pipeline connecting the water storage tank and the elevated water tank, and turn on the water pump power supply to power the water pump. The water pump is controlled by the high liquid level float switch and the low liquid level float switch in the elevated water tank to transport the water in the water storage tank to the elevated water tank.

[0013] The third step is to open the shut-off valve on the second pipeline after the water in the elevated water tank has been transported. The water in the elevated water tank is then transported to the water resistance load box. When the water in the water resistance load box flows out from the overflow port, the shut-off valve on the second pipeline is closed.

[0014] The fourth step is to perform a load test on the water resistance load box after the water has been supplied to the water resistance load box. At the same time, the temperature sensor in the water resistance load box detects the water temperature in the water resistance load box and feeds the water temperature signal back to the electric temperature control valve on the first pipeline. The electric temperature control valve controls the flow rate of water supplied from the elevated water tank to the water resistance load box through the first pipeline according to the received water temperature signal, so that the water temperature in the water resistance load box is controlled at the set value.

[0015] Fifth, the water in the water resistance load box enters the fan cooler through the overflow port. The fan cooler cools the water supplied by the water resistance load box. After the water is cooled, it enters the water storage tank through the pipe.

[0016] Step 6: After the load test of the water resistance load box is completed, close the electric temperature control valve, open the shut-off valve on the second pipeline and the shut-off valve on the pipeline connecting the water resistance load box and the water storage tank, so that the water in the water resistance load box and the elevated water tank flows into the water storage tank, and turn off the power to the water pump to stop the water pump from running.

[0017] The specific steps for controlling the water pump operation using the high-level float switch and low-level float switch in the elevated water tank in the second step above are as follows: When the water level in the elevated water tank is lower than the height of the low-level float switch, the low-level float switch starts the water pump to transport water from the storage tank to the elevated water tank; when the water level in the elevated water tank is the same as the height of the high-level float switch, the high-level float switch controls the water pump to stop operating; when the water level in the elevated water tank is lower than the height of the low-level float switch again, the low-level float switch starts the water pump to transport water from the storage tank to the elevated water tank; when the water level in the elevated water tank is the same as the height of the high-level float switch again, the high-level float switch controls the water pump to stop operating, so that the water level in the elevated water tank is maintained between the high-level float switch and the low-level float switch.

[0018] In the fourth step above, the water temperature in the water resistance load box is controlled at 40-60℃. The electric temperature control valve controls the water flow rate into the water resistance load box according to the water temperature signal detected by the temperature sensor probe, so that the water temperature in the water resistance load box is controlled at 45-55℃.

[0019] Based on the above technical solution, the water resistance load cell system and its usage method for automatically adjusting water temperature and liquid level, as described in this invention patent, have achieved the following technical advantages through practical application:

[0020] 1. The present invention provides a water resistance load cell system for automatically adjusting water temperature and liquid level. By installing a temperature sensing probe inside the water resistance load cell and an electric temperature control valve on the pipeline, the water temperature inside the water resistance load cell is controlled within a set value, avoiding the problem of high-temperature scaling caused by excessively high water temperature and improving the accuracy of load testing of the water resistance load cell.

[0021] 2. The water resistance load cell system of the present invention automatically adjusts water temperature and liquid level by setting an overflow port on the water resistance load cell to keep the water level in the water resistance load cell constant, avoiding water resistance fluctuations caused by water level changes, thereby ensuring the accuracy and precision of the negative water resistance load.

[0022] 3. The water resistance load cell system of the present invention automatically adjusts the water temperature and liquid level by cooling the water output from the water resistance load cell through a fan cooler, so that the water tested by the water resistance load cell can be recycled, reducing the testing cost and enabling water resource recycling. Attached Figure Description

[0023] Figure 1 This is a structural diagram of a water resistance load tank system for automatically adjusting water temperature and liquid level according to the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0025] like Figure 1 The present invention pertains to an automatic water resistance load cell system for regulating water temperature and level. The system includes a water resistance load cell 2, a fan cooler 3, a water storage tank 4, a water pump 5, and a raised water tank 6. The water resistance load cell 2 is connected to the fan cooler 3 via pipelines, the fan cooler 3 is connected to the water storage tank 4 via pipelines, the water storage tank 4 is connected to the raised water tank 6 via pipelines, and the raised water tank 6 is connected to the water resistance load cell 2 via pipelines. The water resistance load cell 2 is equipped with an overflow port 14, and the raised water tank 6 is equipped with a first... The system includes a first pipeline and a second pipeline, which are respectively connected to the water resistance load tank 2. The first pipeline and the second pipeline are connected in parallel to the elevated water tank 6. An electric temperature control valve 1 is installed on the first pipeline, and a shut-off valve 8 is installed on the second pipeline. The elevated water tank 6 is equipped with a high-level float switch 11 and a low-level float switch 10. The water output from the water resistance load tank 2 is cooled by a fan cooler 3, allowing the water tested by the water resistance load tank 2 to be recycled, reducing testing costs and enabling water resource recycling.

[0026] The aforementioned water resistance load tank 2 is equipped with an overflow port 14 and a temperature sensor 13. The overflow port 14 is connected to the fan cooler 3 via a pipe, and the temperature sensor 13 is connected to the electric temperature control valve 1. The temperature sensor 13 detects the water temperature inside the water resistance load tank 2 and feeds back the detected water temperature to the electric temperature control valve 1. The lower end of the water resistance load tank 2 is connected to the water storage tank 4 via a pipe, and a shut-off valve 8 is installed on the pipe connecting the water resistance load tank 2 and the water storage tank 4. An overflow observation mirror 9 is installed on the pipe connecting the water resistance load cell 2 and the fan cooler 3. An electrode plate 12 is also installed inside the water resistance load cell 2 for load testing. By installing a temperature sensing probe 13 inside the water resistance load cell 2 and an electric temperature control valve 1 on the pipeline, the water temperature inside the water resistance load cell 2 is controlled within the set value, avoiding the problem of high temperature scaling caused by excessive water temperature and improving the accuracy of load testing of the water resistance load cell 2. The overflow observation mirror 9 facilitates observation of the water circuit.

[0027] The water storage tank 4 is provided with an exhaust port 15 at the upper end. A water pump 5 is provided on the pipeline connecting the water storage tank 4 and the elevated water tank 6. A shut-off check valve 7 is provided on the pipeline on both sides of the water pump 5.

[0028] The high-level float switch 11 and the low-level float switch 10 in the aforementioned elevated water tank 6 control the water level in the elevated water tank 6 between the high-level float switch 11 and the low-level float switch 10; the high-level float switch 11 and the low-level float switch 10 are respectively electrically connected to the water pump 5.

[0029] A method for using a water resistance load cell system that automatically regulates water temperature and liquid level, the method specifically includes the following steps:

[0030] The first step involves preparing an automatic water resistance load cell system for regulating water temperature and level. This system includes a water resistance load cell 2, a fan cooler 3, a water storage tank 4, a water pump 5, and a high-level water tank 6. The water resistance load cell 2 is connected to the fan cooler 3 via pipelines, the fan cooler 3 is connected to the water storage tank 4 via pipelines, the water storage tank 4 is connected to the high-level water tank 6 via pipelines, and the high-level water tank 6 is connected to the water resistance load cell 2 via pipelines. The water resistance load cell 2 is equipped with an overflow outlet 14. The high-level water tank 6 is equipped with a first pipeline and a second pipeline, which are respectively connected to the water resistance load cell 2. The first pipeline and the second pipeline are connected in parallel to the high-level water tank 6. An electric temperature control valve 1 is installed on the first pipeline, and a shut-off valve 8 is installed on the second pipeline. The high-level water tank 6 is equipped with a high-level float switch 11 and a low-level float switch 10.

[0031] The second step is to open the two shut-off check valves 7 on the pipeline connecting the water storage tank 4 and the elevated water tank 6, and turn on the power supply to the water pump 5. The water pump 5 is controlled by the high liquid level float switch 11 and the low liquid level float switch 10 in the elevated water tank 6 to transport the water in the water storage tank 4 to the elevated water tank 6.

[0032] The third step is to open the shut-off valve 8 on the second pipeline after the water in the elevated water tank 6 has been transported. The water in the elevated water tank 6 is then transported to the water resistance load box 2. When the water in the water resistance load box 2 flows out from the overflow port 14, the shut-off valve 8 on the second pipeline is closed.

[0033] Fourth step: After the water is supplied to the water resistance load box 2, the load test of the water resistance load box 2 is carried out. At the same time, the temperature sensor 13 in the water and electricity load box detects the water temperature in the water resistance load box 2 and feeds back the water temperature signal to the electric temperature control valve 1 on the first pipeline. The electric temperature control valve 1 controls the flow rate of water supplied from the high-position water tank 6 to the water resistance load box 2 through the first pipeline according to the received water temperature signal, so that the water temperature in the water resistance load box 2 is controlled at the set value.

[0034] Fifth step, the water in the water resistance load box 2 enters the fan cooler 3 through the overflow port 14, and the fan cooler 3 cools the water delivered by the water resistance load box 2. After the water is cooled, it enters the water storage tank 4 through the pipe.

[0035] Step 6: After the load test of the water resistance load box 2 is completed, close the electric temperature control valve 1, open the shut-off valve 8 on the second pipeline and the shut-off valve 8 on the pipeline connecting the water resistance load box 2 and the water storage tank 4, so that the water in the water resistance load box 2 and the elevated water tank 6 flows into the water storage tank 4, and turn off the power to the water pump 5 to stop the water pump 5 from running.

[0036] The specific steps for controlling the operation of the water pump 5 using the high-level float switch 11 and low-level float switch 10 in the elevated water tank 6 in the second step described above are as follows: When the liquid level in the elevated water tank 6 is lower than the height of the low-level float switch 10, the low-level float switch 10 starts the water pump 5 to transport water from the storage tank 4 to the elevated water tank 6; when the liquid level in the elevated water tank 6 is the same as the height of the high-level float switch 11, the high-level float switch 11 controls the water pump 5 to stop operating; when the water level in the elevated water tank 6 is lower than the height of the low-level float switch 10 again, the low-level float switch 10 starts the water pump 5 to transport water from the storage tank 4 to the elevated water tank 6; when the liquid level in the elevated water tank 6 is the same as the height of the high-level float switch 11 again, the high-level float switch 11 controls the water pump 5 to stop operating, so that the liquid level in the elevated water tank 6 is maintained between the high-level float switch 11 and the low-level float switch 10.

[0037] In the fourth step above, the water temperature in the water resistance load box 2 is controlled at 40-60℃. The electric temperature control valve 1 controls the water flow rate entering the water resistance load box 2 according to the water temperature signal detected by the temperature sensor 13, so that the water temperature in the water resistance load box 2 is controlled at 45-55℃.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A water resistance load box system for automatically adjusting water temperature and water level, characterized in that, The system comprises a water resistance load box (2), a fan cooler (3), a water storage tank (4), a water pump (5) and a high water tank (6); the water resistance load box (2) is connected with the fan cooler (3) through a pipeline, the fan cooler (3) is connected with the water storage tank (4) through a pipeline, the water storage tank (4) is connected with the high water tank (6) through a pipeline, and the high water tank (6) is connected with the water resistance load box (2) through a pipeline; an overflow port (14) is arranged on the water resistance load box (2), first and second pipelines are arranged on the high water tank (6), the first and second pipelines are connected with the water resistance load box (2) respectively, the first and second pipelines are connected with the high water tank (6) in parallel, an electric temperature control valve (1) is arranged on the first pipeline, and a stop valve (8) is arranged on the second pipeline; high and low liquid level float ball switches (11) and (10) are arranged on the high water tank (6); The water resistance load box (2) is provided with an overflow port (14) and a temperature sensing probe (13), the overflow port (14) is connected with the fan cooler (3) through a pipeline, the temperature sensing probe (13) is connected with the electric temperature control valve (1), the temperature sensing probe (13) detects the water temperature in the water resistance load box (2) and feeds back the detected water temperature in the water resistance load box (2) to the electric temperature control valve (1); the lower end of the water resistance load box (2) is connected with the water storage tank (4) through a pipeline, and a stop valve (8) is arranged on the pipeline connecting the water resistance load box (2) with the water storage tank (4); an overflow observation mirror (9) is arranged on the pipeline connecting the water resistance load box (2) with the fan cooler (3); a polar plate (12) is further arranged in the water resistance load box (2) for load test of the water resistance load box (2); An exhaust port (15) is arranged at the upper end of the water storage tank (4), a water pump (5) is arranged on the pipeline connecting the water storage tank (4) with the high water tank (6), and stop check valves (7) are arranged on the pipelines on both sides of the water pump (5); The high and low liquid level float ball switches (11) and (10) in the high water tank (6) control the water level in the high water tank (6) between the high and low liquid level float ball switches (11) and (10); and the high and low liquid level float ball switches (11) and (10) are electrically connected with the water pump (5) respectively.

2. A method for using a water resistance load box system for automatically adjusting water temperature and liquid level, characterized in that, The method specifically comprises the following steps: The first step is to prepare an automatic water temperature and liquid level adjusting water resistance load box system, which comprises a water resistance load box (2), a fan cooler (3), a water storage tank (4), a water pump (5) and a high water tank (6); the water resistance load box (2) is connected with the fan cooler (3) through a pipeline, the fan cooler (3) is connected with the water storage tank (4) through a pipeline, the water storage tank (4) is connected with the high water tank (6) through a pipeline, and the high water tank (6) is connected with the water resistance load box (2) through a pipeline; an overflow port (14) is arranged on the water resistance load box (2), a first pipeline and a second pipeline are arranged on the high water tank (6), the first pipeline and the second pipeline are connected with the water resistance load box (2) respectively, the first pipeline and the second pipeline are connected with the high water tank (6) in parallel, an electric temperature control valve (1) is arranged on the first pipeline, and a stop valve (8) is arranged on the second pipeline; a high liquid level float ball switch (11) and a low liquid level float ball switch (10) are arranged on the high water tank (6); The second step is to open the two stop check valves (7) on the pipeline connecting the water storage tank (4) and the high water tank (6), turn on the power supply of the water pump (5) to supply power to the water pump (5), and control the water pump (5) to transport the water in the water storage tank (4) to the high water tank (6) through the high liquid level float ball switch (11) and the low liquid level float ball switch (10) in the high water tank (6); The third step is to open the stop valve (8) on the second pipeline when the water transportation in the high water tank (6) is completed, transport the water in the high water tank (6) to the water resistance load box (2), and close the stop valve (8) on the second pipeline when the water in the water resistance load box (2) flows out of the overflow port (14); The fourth step is to complete the load test of the water resistance load box (2) when the water transportation in the water resistance load box (2) is completed, detect the water temperature in the water resistance load box (2) by the temperature sensing probe (13) in the water resistance load box (2), feed back the water temperature signal to the electric temperature control valve (1) on the first pipeline, control the high water tank (6) to transport water to the water resistance load box (2) through the first pipeline according to the received water temperature signal, and control the water temperature in the water resistance load box (2) to be set; The fifth step is that the water in the water resistance load box (2) enters the fan cooler (3) through the overflow port (14), the water transported by the water resistance load box (2) is cooled by the fan cooler (3), and the cooled water enters the water storage tank (4) through a pipeline; The sixth step is to close the electric temperature control valve (1), open the stop valve (8) on the second pipeline and the stop valve (8) on the pipeline connecting the water resistance load box (2) and the water storage tank (4) after the load test of the water resistance load box (2) is completed, so that the water in the water resistance load box (2) and the high water tank (6) flows into the water storage tank (4), and the power supply of the water pump (5) is turned off to stop the operation of the water pump (5).

3. The method of claim 2, wherein the water resistance load box system is automatically adjusted to the water temperature and the water level. The specific steps of the water pump (5) operation controlled by the high liquid level float ball switch (11) and the low liquid level float ball switch (10) in the high water tank (6) in the second step are as follows: when the liquid level in the high water tank (6) is lower than the height of the low liquid level float ball switch (10), the low liquid level float ball switch (10) starts the water pump (5) to transport the water in the water storage tank (4) into the high water tank (6); when the liquid level in the high water tank (6) is the same as the height of the high liquid level float ball switch (11), the high liquid level float ball switch (11) controls the water pump (5) to stop running; when the liquid level in the high water tank (6) is lower than the height of the low liquid level float ball switch (10) again, the low liquid level float ball switch (10) starts the water pump (5) to transport the water in the water storage tank (4) into the high water tank (6); when the liquid level in the high water tank (6) is the same as the height of the high liquid level float ball switch (11) again, the high liquid level float ball switch (11) controls the water pump (5) to stop running, so that the liquid level in the high water tank (6) is kept between the high liquid level float ball switch (11) and the low liquid level float ball switch (10).

4. The method of using the water resistance load box system of claim 2, wherein, The water temperature in the water resistance load tank (2) is controlled at 40-60℃, and the electric temperature control valve (1) controls the water flow into the water resistance load tank (2) according to the water temperature signal detected by the temperature sensing probe (13) to control the water temperature in the water resistance load tank (2) at 45-55℃.

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