Automatic water replenishing device for circulating water pool of waste heat power station

Abstract

The utility model relates to an automatic water replenishing device for a circulating water pool of a waste heat power station. The device comprises a square pipe, a top plate, a radar liquid level meter, an alarm mechanism, a water supplementing pipe and an electromagnetic valve, the square pipe is fixedly installed on the side wall of the circulating water pool in the vertical direction, the top plate is installed at the top of the square pipe, the radar liquid level meter and the alarm mechanism are installed on the top plate, and when the water level is abnormal, workers are reminded through the alarm mechanism, so that the water supplementing pipe is not damaged. One end of the water replenishing pipe is connected with the circulating water pool, and the other end of the water replenishing pipe is connected with an external water supply pipe network. According to the scheme provided by the invention, the water level can be measured in real time, automatic water replenishing is carried out, and normal supply of circulating water is ensured.

Description

Technical Field

[0001] This application relates to the field of waste heat power generation technology, and in particular to an automatic water replenishment device for the circulating water tank of a waste heat power plant. Background Technology

[0002] In the process of waste heat power generation, it is necessary to use circulating water to cool down the equipment in order to ensure the normal operation of the power generation equipment.

[0003] Currently, replenishing the circulating water tank in waste heat power plants is generally done manually. The need for replenishment is determined by observing the water level in the tank and then adjusting manual valves. However, the dim lighting inside the tank makes it easy to misjudge the water level, affecting the accuracy of the assessment. Furthermore, manually operating the valves is cumbersome and physically demanding for workers. In addition, manual replenishment is prone to errors such as forgetting to replenish or missing water, leading to interruptions in the cooling circulation and disrupting the normal operation of the equipment. Utility Model Content

[0004] To address or partially address the problems existing in the related technologies, this application provides an automatic water replenishment device for the circulating water tank of a waste heat power plant. This device can measure the water level in real time and automatically replenish water to ensure the normal supply of circulating water.

[0005] This application provides an automatic water replenishment device for the circulating water tank of a waste heat power plant, including a square tube, a top plate, a radar level gauge, an alarm mechanism, a water replenishment pipe, and a solenoid valve. The square tube is fixedly installed vertically on the side wall of the circulating water tank, and a top plate is installed on the top of the square tube. The radar level gauge and the alarm mechanism are installed on the top plate. When the water level is abnormal, the alarm mechanism will remind the staff. One end of the water replenishment pipe is connected to the circulating water tank, and the other end is connected to the external water supply network. A solenoid valve is installed on the water replenishment pipe.

[0006] Optionally, in some embodiments, the alarm mechanism includes a triggering component, a first limit switch, and a second limit switch. The first limit switch and the second limit switch are respectively installed on the upper and lower sides of the top plate, and a triggering component corresponding to the first limit switch and the second limit switch is installed on the top plate. When the water level is abnormal, the first limit switch or the second limit switch can be activated by the triggering component.

[0007] Optionally, in some embodiments, the triggering component includes a float, a connecting rod, and a pressure plate. The connecting rod is slidably connected to the top plate, and the top end of the connecting rod is fixedly connected to a pressure plate corresponding to a first limit switch. The bottom end of the connecting rod is fixedly connected to the float, which corresponds to a second limit switch, and the height of the float changes with the rise and fall of the water level.

[0008] Optionally, in some embodiments, a partition is provided inside the square tube to prevent mutual interference between the radar level gauge and the alarm mechanism.

[0009] Optionally, in some embodiments, there is a gap between the bottom of the square tube and the bottom surface of the circulating water tank, which ensures that the liquid level inside the square tube is consistent with the liquid level in the circulating water tank under the principle of communicating vessels.

[0010] The technical solution provided in this application may include the following beneficial effects:

[0011] This application uses a radar level gauge to measure the water level in real time and works with a solenoid valve to automatically replenish water, ensuring a normal supply of circulating water. An alarm mechanism verifies the water level and promptly alerts staff when an abnormal water level occurs, preventing the circulating water from drying up or overflowing due to radar level gauge malfunction.

[0012] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0013] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a partial structural diagram of this application;

[0016] Figure 3 This is a partial structural cross-sectional view of this application.

[0017] Figure label:

[0018] 1-Square tube, 11-Baffle, 2-Top plate, 3-Radar level gauge, 4-Alarm mechanism, 5-Trigger assembly, 51-Float, 52-Connecting rod, 53-Pressure plate, 6-First limit switch, 61-First trigger button, 7-Second limit switch, 71-Second trigger button, 8-Circulating water tank, 81-Water supply pipe, 82-Water suction pipe, 83-Water return pipe, 9-Solenoid valve. Detailed Implementation

[0019] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0020] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] See Figure 1-3 The automatic water replenishment device for the circulating water tank of the waste heat power plant includes a square tube 1, a top plate 2, a radar level gauge 3, an alarm mechanism 4, a water replenishment pipe 81, and a solenoid valve 9. The square tube 1 is vertically fixed to the side wall of the circulating water tank 8, with a gap between the bottom of the square tube 1 and the bottom surface of the circulating water tank 8. This gap, achieved through the principle of communicating vessels, ensures that the liquid level inside the square tube 1 is consistent with the liquid level in the circulating water tank 8. The purpose of the square tube 1 is to reduce the impact of waves on level measurement, as waves are continuously generated within the circulating water tank 8 during the circulation process. Figure 1 The water supply pipe 81 and the return water pipe 83 are set on one side of the circulating water tank 8, and the square pipe 1 is installed on the other side of the circulating water tank 8, so that the square pipe 1 is far away from the water supply pipe 81 and the return water pipe 83, further reducing the impact of waves on the liquid surface inside the square pipe 1.

[0024] See Figure 2 , 3A top plate 2 is fixedly installed on the top of the square tube 1. A radar level gauge 3 and an alarm mechanism 4 are fixedly installed on the top plate 2. The radar level gauge 3 can measure the water level in the circulating water tank 8 in real time. One end of the water supply pipe 81 is connected to the circulating water tank 8, and the other end is connected to the external water supply network. A solenoid valve 9 is also installed on the water supply pipe 81. The opening and closing of the water supply pipe 81 can be controlled by the solenoid valve 9. Both the radar level gauge 3 and the solenoid valve 9 are electrically connected to the external control system.

[0025] A partition 11 is installed inside the square tube 1, which divides the space inside the square tube 1 into two parts, left and right. One part is equipped with a radar level gauge 3, and the other part is equipped with an alarm mechanism 4. The partition 11 can prevent mutual interference between the radar level gauge 3 and the alarm mechanism 4.

[0026] When in use, the highest and lowest water levels are preset. When the radar level gauge 3 detects that the water level in the circulating water tank 8 has dropped to the lowest level, it sends a signal to the external control system, which then controls the solenoid valve 9 to open and replenish water. When the water level in the circulating water tank 8 rises to the highest level, the radar level gauge sends a signal to the external control system three times, which then controls the solenoid valve 9 to close and complete the water replenishment.

[0027] Furthermore, since automatic water replenishment eliminates the need for frequent monitoring of the water level in the circulating water tank 8, malfunctions in the radar level gauge 3 are difficult to detect immediately, potentially leading to production accidents. Therefore, an alarm mechanism 4 for detecting abnormal water levels is installed inside the square tube 1. When an abnormal water level occurs, the alarm mechanism 4 alerts the staff, preventing safety accidents.

[0028] See Figure 2 , 3 The alarm mechanism 4 includes a trigger component 5, a first limit switch 6, and a second limit switch 7. The first limit switch 6 and the second limit switch 7 are respectively installed on the upper and lower sides of the top plate 2. The first limit switch 6 and the second limit switch 7 are electrically connected to the external control system. The trigger component 5 corresponding to the first limit switch 6 and the second limit switch 7 is installed on the top plate 2. When the water level is abnormal, the trigger component 5 can activate the first limit switch 6 or the second limit switch 7, thereby sending a warning signal to the external control system and reminding relevant personnel to handle the situation immediately.

[0029] The trigger assembly 5 includes a float 51, a connecting rod 52, and a pressure plate 53. Two connecting rods 52 are provided and slidably connected to the top plate 2. A pressure plate 53 corresponding to the first limit switch 6 is fixedly connected between the top ends of the two connecting rods 52. The bottom ends of the two connecting rods 52 are fixedly connected to the float 51, which corresponds to the second limit switch 7. The height of the float 51 changes with the rise and fall of the water level. When the water level in the circulating water tank 8 is too low, the float 51 descends, causing the pressure plate 53 to contact the first trigger button 61 via the connecting rod 52, activating the first limit switch 6 and sending a low water level warning signal to the external control system. When the water level in the circulating water tank 8 is too high, the float 51 rises and contacts the second trigger button 71, activating the second limit switch 7 and sending a high water level warning signal to the external control system. The specific control circuit structure is existing technology and will not be described in detail here.

[0030] Specific work process:

[0031] The radar level gauge 3 monitors the water level in the circulating water tank 8 in real time. When the water level reaches the preset lower limit, the solenoid valve 9 opens to replenish water. When the water level rises to the preset upper limit, the solenoid valve 9 closes to complete the water replenishment. When the water level exceeds the preset value, the alarm mechanism 4 issues a warning immediately to remind the staff to handle the situation and ensure the normal operation of waste heat power generation.

[0032] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0033] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An automatic water replenishment device for the circulating water tank of a waste heat power plant, characterized in that: The automatic water replenishment device for the circulating water tank of the waste heat power plant includes a square tube (1), a top plate (2), a radar level gauge (3), an alarm mechanism (4), a water replenishment pipe (81), and a solenoid valve (9). The square tube (1) is fixedly installed vertically on the side wall of the circulating water tank (8). The top plate (2) is installed on the top of the square tube (1). The radar level gauge (3) and the alarm mechanism (4) are installed on the top plate (2). When the water level is abnormal, the alarm mechanism (4) will remind the staff. One end of the water replenishment pipe (81) is connected to the circulating water tank (8), and the other end is connected to the external water supply network. The solenoid valve (9) is installed on the water replenishment pipe (81).

2. The automatic water replenishment device for the circulating water tank of a waste heat power plant according to claim 1, characterized in that: The alarm mechanism (4) includes a trigger component (5), a first limit switch (6), and a second limit switch (7). The first limit switch (6) and the second limit switch (7) are respectively installed on the upper and lower sides of the top plate (2), and the trigger component (5) corresponding to the first limit switch (6) and the second limit switch (7) is installed on the top plate (2). When the water level is abnormal, the first limit switch (6) or the second limit switch (7) can be activated by the trigger component (5).

3. The automatic water replenishment device for the circulating water tank of a waste heat power plant according to claim 2, characterized in that: The triggering component (5) includes a float (51), a connecting rod (52), and a pressure plate (53). The connecting rod (52) is slidably connected to the top plate (2), and the top end of the connecting rod (52) is fixedly connected to the pressure plate (53) corresponding to the first limit switch (6). The bottom end of the connecting rod (52) is fixedly connected to the float (51), which corresponds to the second limit switch (7). The height of the float (51) changes with the rise and fall of the water level.

4. The automatic water replenishment device for the circulating water tank of a waste heat power plant according to claim 1, characterized in that: A partition (11) is provided inside the square tube (1), which can prevent mutual interference between the radar level gauge (3) and the alarm mechanism (4).

5. The automatic water replenishment device for the circulating water tank of a waste heat power plant according to claim 1, characterized in that: A gap is left between the bottom of the square tube (1) and the bottom surface of the circulating water tank (8), which ensures that the liquid level in the square tube (1) is consistent with the liquid level in the circulating water tank (8) under the principle of communicating vessels.

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