External assembly liquid level meter for a slag conveyor

Abstract

The utility model provides a kind of external type assembly liquid level meter of slag conveyor, belong to liquid level control technical field. Including mounting rod, mounting rod is vertically set in the tank body of slag conveyor, mounting rod is fixedly connected with tank body by first connecting piece, high position reed tube and low position reed tube are vertically spaced apart and set on mounting rod, vertically sliding connection is set on the magnetic float of mounting rod between two magnetic ring switches, tank body is connected with water replenishing pipe, and water replenishing valve is set on water replenishing pipe;Low position reed tube is triggered by magnetic float to control water replenishing valve to open, high position reed tube is triggered by magnetic float to control water replenishing valve to close. With the change of liquid level height in tank body, magnetic trigger magnetic reed switch when magnetic float lifts, and open-close of water replenishing valve is controlled by single-chip microcomputer, realize low liquid level to tank body in water replenishing, water replenishing to high liquid level stops water replenishing, always maintain tank body in liquid level balance, need not in tank body surface hole, with the effect that can better keep tank body sealability.

Description

Technical Field

[0001] This utility model relates to the field of liquid level control technology, and in particular to an externally mounted liquid level gauge for a slag removal machine. Background Technology

[0002] The incinerator slag remover is used to cool the high-temperature slag during the production process. If the liquid level is too low, the slag will not be cooled sufficiently, which may damage the conveying equipment; if the liquid level is too high, it may overflow, pollute the environment or affect subsequent processing.

[0003] Currently, the automatic water replenishment device of the slag removal machine of the incinerator often adopts a level gauge + water replenishment electric valve for self-control. Most of the conventional level gauges currently in use are designed as tuning fork type or through float type. Tuning fork type is mostly expensive. In order to accurately control the water replenishment at high and low levels, two need to be installed (if only one is installed, the difference between high and low levels will be small, resulting in frequent signaling to replenish water). In addition, it is necessary to make a hole in the tank for horizontal installation, which will have some impact on the sealing of the water tank. In the current corrosive environment of reclaimed water or concentrated water, there is a risk of leakage due to perforation. Utility Model Content

[0004] In view of the above problems, this utility model provides an externally mounted liquid level gauge for a slag removal machine.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An external assembly level gauge for a slag remover is provided, including a mounting rod, which is vertically installed inside the tank of the slag remover. The mounting rod is fixedly connected to the tank through a first connector. Two magnetic reed switches are vertically spaced on the mounting rod, and a magnetic float is installed between the two magnetic reed switches. The magnetic float is vertically slidably connected to the mounting rod. A water supply pipe is connected to the tank, and a water supply valve is installed on the water supply pipe.

[0007] It also includes a microcontroller. The reed switch includes a high-position reed switch and a low-position reed switch. The high-position reed switch, the low-position reed switch, and the water supply valve are all electrically connected to the microcontroller. When the low-position reed switch is triggered by the magnetic float, it controls the water supply valve to open. When the high-position reed switch is triggered by the magnetic float, it controls the water supply valve to close.

[0008] Furthermore, the first connecting component includes a first connecting frame and a locking bracket. The first connecting frame and the locking bracket are connected by a first connecting bolt. The first connecting frame is fixed to the inner wall of the tank. A first support plate for supporting the outer wall of the mounting rod is fixedly provided at the end of the first connecting frame away from the inner wall of the tank. A second support plate is provided on the side of the first support plate away from the inner wall of the tank. The second support plate is fixedly connected to the locking bracket. A connecting nut is fixedly provided on the first connecting frame. A through hole is provided on the locking bracket. The first connecting bolt passes through the through hole and is threadedly connected to the connecting nut.

[0009] Furthermore, a through hole is provided on the magnetic float, the diameter of which is larger than the diameter of the mounting rod, and both ends of the through hole on the magnetic float are provided with rounded chamfers.

[0010] Furthermore, two sets of adjusting rings are detachably installed on the mounting rod, and two magnetic reed switches are respectively installed on the two sets of adjusting rings.

[0011] Furthermore, the adjusting ring includes a connecting seat and a movable seat. The two ends of the connecting seat are fixedly provided with wire sleeves. The movable seat is slidably disposed on the side of the connecting seat away from the mounting rod. It also includes a connecting rope, which passes through two connecting ropes and is wrapped around the outside of the mounting rod. Both ends of the connecting rope are fixedly connected to the movable seat. A second connecting bolt is threaded onto the movable seat and threadedly connected to it. The second connecting bolt is threadedly connected to the connecting seat.

[0012] Furthermore, it also includes a holding relay, which is connected in parallel with a low-position reed switch, and the holding relay is energized and closed.

[0013] The beneficial effects of this utility model are as follows: By installing two reed switches on the mounting rod and setting a magnetic float between the two reed switches, the magnetic float magnetically triggers the reed switches when it rises and falls as the liquid level in the tank changes. The microcontroller controls the opening and closing of the water supply valve, so that water is supplied to the tank when the liquid level is low and the water supply stops when the liquid level is high. This maintains a balanced liquid level in the tank at all times. There is no need to open holes on the surface of the tank, which can better maintain the sealing of the tank. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the circuit structure of the level gauge according to an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the installation state structure of the level gauge according to an embodiment of this application.

[0016] Figure 3 This is a schematic diagram of the structure of the first connector in an embodiment of this application.

[0017] Figure 4 This is a schematic diagram of the structure of the adjustment ring according to an embodiment of this application.

[0018] The components include: 1. Mounting rod; 2. Magnetic float; 3. Water supply valve; 41. High-position reed switch; 42. Low-position reed switch; 5. Adjusting ring; 51. First connecting bracket; 52. Locking bracket; 53. First connecting bolt; 54. First support plate; 55. Second support plate; 56. Connecting nut; 61. Connecting seat; 62. Movable seat; 63. Wire sleeve; 64. Connecting rope; 65. Second connecting bolt; 66. Covering plate; 7. Holding relay. Detailed Implementation

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] This application discloses an externally mounted liquid level gauge for a slag removal machine, referring to... Figure 1 and Figure 2 The system includes an installation rod 1, which is fixedly connected to the tank body via a first connector. The installation rod 1 is vertically installed inside the tank body of the slag remover. Two magnetic reed switches are vertically spaced on the installation rod 1, and a magnetic float 2 is positioned between the two magnetic reed switches. Sufficient vertical movement is allowed between the high-position reed switch 41 and the low-position reed switch 42 for the magnetic float 2 to move vertically. The magnetic float 2 floats on the liquid surface inside the tank due to buoyancy and can slide vertically on the installation rod 1 as the liquid level changes. A water supply pipe is connected to the tank body, and a water supply valve 3 is installed on the water supply pipe. The water supply valve 3 can be an electronic valve; in other embodiments, the water supply valve 3 can also be replaced by a water pump. Cooling water flows into the tank body by opening the water supply valve 3 or the water pump.

[0021] In this embodiment, a microcontroller is also included. The microcontroller can be located at the top of the mounting rod 1 or externally connected to the outside of the tank, such as an external remote control center. The microcontroller receives the liquid level signal from the reed switch through the control circuit to control the opening and closing state of the water supply valve 3. The reed switch includes a high-position reed switch 41 and a low-position reed switch 42. The installation height of the high-position reed switch 41 on the mounting rod 1 is higher than that of the low-position reed switch 42. The high-position reed switch 41, the low-position reed switch 42, and the water supply valve 3 are all electrically connected to the microcontroller. The high-position reed switch 41 is a normally closed structure, the low-position reed switch 42 is a normally open structure, and the water supply valve 3 is a normally closed structure.

[0022] When the liquid level in the tank decreases, the magnetic float 2 descends to trigger the low-position reed switch 42, which closes, opening the water supply valve 3 to replenish the tank with liquid. When the liquid level in the tank is too high, the magnetic float 2 rises to trigger the high-position reed switch 41, which opens, closing the water supply valve 3 and stopping the replenishment of liquid into the tank.

[0023] Furthermore, in order to ensure that the water supply valve 3 remains open as the water level rises with the liquid level after the magnetic float 2 triggers the low-position reed switch 42, until the water level in the tank rises to the point where the magnetic float 2 and the high-position reed switch 41 are close to triggering, this embodiment of the application also includes a holding relay 7, which is connected in parallel with the low-position reed switch 42, and the holding relay 7 is induced to close when the low-position reed switch 42 is energized.

[0024] In the circuit designed in this application, the low-position reed switch 42, the water supply valve 3, the high-position reed switch 41, and the power supply are connected in sequence to form a closed circuit. The holding relay 7 is connected in parallel on one side of the low-position reed switch 42. The holding relay 7 is normally open. When the low-position reed switch 42 is closed, the holding relay 7 is closed by electromagnetic induction. Even if the low-position reed switch 42 is opened, the holding relay 7 can still remain closed to keep the water supply valve 3 open until the high-position reed switch 41 is opened, the circuit is broken, and the holding relay 7 is de-energized and disconnected.

[0025] Reference Figure 3 To enable the level gauge to be flexibly installed on different tanks, the first connecting component includes a first connecting frame 51 and a locking bracket 52. The first connecting frame 51 and the locking bracket 52 are connected by a first connecting bolt 53. The first connecting frame 51 is fixed to the inner wall of the tank. A first support plate 54 for supporting the outer wall of the mounting rod 1 is fixedly provided at the end of the first connecting frame 51 away from the inner wall of the tank. A second support plate 55 is provided on the side of the first support plate 54 away from the inner wall of the tank. The second support plate 55 is fixedly connected to the locking bracket 52. A connecting nut 56 is fixedly provided on the first connecting frame 51. A through hole is provided on the locking bracket 52. The first connecting bolt 53 passes through the through hole and is threadedly connected to the connecting nut 56. The first connecting frame 51 can be designed with a hanging groove for hanging on the edge of the tank opening. A locking bolt can be threadedly connected to the first connecting frame 51. The locking bolt passes through the first connecting frame 51 and abuts against the outer wall of the tank, thereby effectively fixing the first connecting frame 51. In other embodiments, the first connecting bracket 51 may also remain in contact with the inner wall of the tank, with a through hole or threaded hole provided on the tank. The locking bolt passes through the first connecting bracket 51 and the through hole and is threadedly connected to the nut, or the locking bolt passes through the first connecting bracket 51 and is threadedly connected to the threaded hole on the tank.

[0026] After the mounting rod 1 passes between the first support plate 54 and the second support plate 55, the locking bracket 52 moves relative to the first connecting bracket 51 by tightening the first connecting bolt 53, thereby causing the first support plate 54 and the second support plate 55 to hold and fix the mounting rod 1. This connection method can flexibly adjust the fixed position of the mounting rod 1 and the first connecting piece, use tanks of different depths, and is applicable to mounting rods of different sizes, thus improving the adaptability of structural materials.

[0027] The magnetic float 2 has a through hole, the diameter of which is larger than the diameter of the mounting rod 1. Both ends of the through hole on the magnetic float 2 are rounded and chamfered. When the magnetic float 2 moves up and down on the mounting rod 1, the combination of the larger diameter of the hole and the rounded chamfers prevents the magnetic float 2 from slipping if there are impurities attached to the mounting rod 1.

[0028] Reference Figure 4Furthermore, two sets of adjusting rings 5 ​​are detachably connected to the mounting rod 1, and two magnetic reed switches are respectively set on the two sets of adjusting rings 5. By adjusting the position of the adjusting rings 5 ​​on the mounting rod 1, the height of the high-position reed switch 41 and the low-position reed switch 42 on the mounting rod 1 can be adjusted so that the cooling water level in the tank can be adapted to the tank depth and the needs of the slag removal machine.

[0029] Specifically, the adjusting ring 5 includes a connecting seat 61 and a movable seat 62. Wire sleeves 63 are fixedly installed at both ends of the connecting seat 61. The movable seat 62 is slidably positioned on the side of the connecting seat 61 away from the mounting rod 1. It also includes a connecting rope 64, which passes through two other connecting ropes and is wrapped around the outside of the mounting rod 1. Both ends of the connecting rope 64 are fixedly connected to the movable seat 62. A second connecting bolt 65 is threaded onto and connected to the movable seat 62, and the second connecting bolt 65 is threadedly connected to the connecting seat 61. By tightening the second connecting bolt 65, the relative position of the movable seat 62 and the connecting seat 61 can be adjusted. When the movable seat 62 moves away from the connecting seat 61, the length of the connecting rope 64 on the other side of the connecting seat 61 shortens, allowing the adjusting ring 5 to be installed and fixed on mounting rods 1 of different sizes. A covering plate 66 is provided on the inner side of the connecting rope 64. The covering plate 66 can be made of rubber. The covering plate 66 increases the contact surface of the connecting rope 64 when clamping the mounting rod 1, thereby improving the installation stability of the adjusting ring 5 on the mounting rod 1.

[0030] In other embodiments, the mounting rod 1 can be a hollow tube with a sealed bottom. A support rod is movably inserted into the mounting rod 1. Both reed switches are fixed to the support rod with screws. Both the mounting rod 1 and the support rod are made of non-magnetic materials. By placing the reed switches inside the mounting rod 1, problems such as rapid aging of the circuit or short circuit caused by slag damage caused by long-term immersion in liquid can be avoided.

[0031] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. An externally mounted liquid level gauge for a slag removal machine, characterized in that: The device includes an installation rod (1), which is vertically installed inside the tank of the slag remover. The installation rod (1) is fixedly connected to the tank through a first connector. Two magnetic reed switches are vertically spaced on the installation rod (1), and a magnetic float (2) is installed between the two magnetic reed switches. The magnetic float (2) is vertically slidably connected to the installation rod (1). A water supply pipe is connected to the tank, and a water supply valve (3) is installed on the water supply pipe. It also includes a microcontroller. The reed switch includes a high-position reed switch (41) and a low-position reed switch (42). The high-position reed switch (41), the low-position reed switch (42) and the water supply valve (3) are all electrically connected to the microcontroller. When the low-position reed switch (42) is triggered by the magnetic float (2), it controls the water supply valve (3) to open. When the high-position reed switch (41) is triggered by the magnetic float (2), it controls the water supply valve (3) to close.

2. The externally mounted liquid level gauge for a slag remover according to claim 1, characterized in that, The first connector includes a first connecting frame (51) and a locking bracket (52). The first connecting frame (51) and the locking bracket (52) are connected by a first connecting bolt (53). The first connecting frame (51) is fixed on the inner wall of the tank. A first support plate (54) for supporting the outer wall of the mounting rod (1) is fixedly provided at the end of the first connecting frame (51) away from the inner wall of the tank. A second support plate (55) is provided on the side of the first support plate (54) away from the inner wall of the tank. The second support plate (55) is fixedly connected to the locking bracket (52). A connecting nut (56) is fixedly provided on the first connecting frame (51). A through hole is provided on the locking bracket (52). The first connecting bolt (53) passes through the through hole and is threadedly connected to the connecting nut (56).

3. The externally mounted liquid level gauge for a slag remover according to claim 1, characterized in that, The magnetic float (2) has a through hole, the diameter of which is larger than the diameter of the mounting rod (1), and both ends of the through hole on the magnetic float (2) are provided with rounded chamfers.

4. The externally mounted liquid level gauge for a slag remover according to claim 1, characterized in that, The mounting rod (1) is detachably provided with two sets of adjusting rings (5), and the two magnetic reed switches are respectively set on the two sets of adjusting rings (5).

5. The externally mounted liquid level gauge for a slag remover according to claim 4, characterized in that, The adjusting ring (5) includes a connecting seat (61) and a movable seat (62). The two ends of the connecting seat (61) are fixedly provided with wire sleeves (63). The movable seat (62) is slidably disposed on the side of the connecting seat (61) away from the mounting rod (1). It also includes a connecting rope (64). The connecting rope (64) passes through two connecting ropes (64) and is wrapped around the outside of the mounting rod (1). Both ends of the connecting rope (64) are fixedly connected to the movable seat (62). A second connecting bolt (65) is threaded through and threaded onto the movable seat (62). The second connecting bolt (65) is threadedly connected to the connecting seat (61).

6. The externally mounted liquid level gauge for a slag remover according to claim 1, characterized in that, It also includes a holding relay (7), which is connected in parallel with a low-position reed switch (42), and the holding relay (7) is energized and closed.

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