Automatic water replenishing device for water level control of gas-fired boiler

Abstract

The utility model belongs to the technical field of gas-fired boilers, and particularly relates to a gas-fired boiler water level control automatic water replenishing device which comprises a boiler body, an electromagnetic control valve fixedly installed on one side of the boiler body, a water inlet pipe arranged on one side of the electromagnetic control valve, a display instrument fixedly installed on one side of the boiler body, and a controller fixedly installed at the bottom of the display instrument. A sealing cover is arranged at the top of the boiler body, and a water level monitoring sensing mechanism is arranged at the bottom of the sealing cover. The first sealing groove, the fixing hole, the sealing cover, the hand wheel, the rotating shaft, the movable groove, the compression spring, the fixing pin and the pull rope are used in cooperation, the fixing pin is movably connected with the fixing hole in an inserted mode, the hand wheel is rotated to drive the rotating shaft to rotate, the pull rope is conveniently pulled to drive the fixing pin to be movably adjusted, and the fixing pin can be separated from the fixing hole; therefore, the water level monitoring sensing mechanism can be quickly disassembled, a worker can conveniently overhaul and maintain the water level monitoring sensing mechanism or clean water scale adhering to the surface of the water level monitoring sensing mechanism, and the water level monitoring sensing mechanism can be better used for work.

Description

Technical Field

[0001] This utility model relates to the field of gas-fired boiler technology, specifically to an automatic water replenishment device for controlling the water level of a gas-fired boiler. Background Technology

[0002] Gas-fired boilers, as the name suggests, are boilers that use gas as fuel. This fuel can be natural gas, LNG, CNG, coal gas, etc. Due to their availability of clean energy and high combustion efficiency, they have always been a common and widely used type of boiler. During the daily use of gas-fired boilers, it is also necessary to pay attention to changes in the water level in the boiler's water storage chamber and replenish water in a timely manner to avoid dry burning and damage to the boiler body.

[0003] The existing technology has the following shortcomings: The existing technology, disclosed in CN202222443206.4, discloses a mechanically controlled automatic water replenishment device for a gas-fired boiler at a low water level. This device includes: a water replenishment tank, which is connected to the water storage chamber of the gas-fired boiler via a water supply pipe and is positioned higher than the water storage chamber; a control mechanism, including: a base, which is fixedly installed on the bottom plate of the water storage chamber of the gas-fired boiler; a limiting cylinder, which is connected to the interior of the base and fixedly installed on the base; a limiting groove on the inner wall of the limiting cylinder; and a strip-shaped through hole on the side wall opposite to the limiting groove; and a floating ball, which is disposed inside the limiting cylinder; a sliding column and a limiting roller are provided on the side wall of the floating ball; one end of the sliding column is slidably installed in the limiting groove; the limiting roller passes through the strip-shaped through hole; and the end of the limiting roller away from the floating ball can contact the side wall of the water storage chamber of the gas-fired boiler connected to the water supply pipe.

[0004] While the aforementioned equipment can conveniently and automatically replenish water inside the boiler, it is difficult to install and disassemble it for cleaning because it is installed inside the boiler. Furthermore, impurities or scale in the water can affect its control performance, thus limiting its practical application. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic water replenishment device for controlling the water level of a gas-fired boiler, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic water replenishment device for water level control of a gas-fired boiler, comprising a boiler body, an electromagnetic control valve fixedly installed on one side of the boiler body, a water inlet pipe provided on one side of the electromagnetic control valve, a display instrument fixedly installed on one side of the boiler body, a controller fixedly installed at the bottom of the display instrument, a sealing cover provided on the top of the boiler body, and a water level monitoring sensor mechanism provided at the bottom of the sealing cover.

[0007] As a preferred embodiment of this utility model, the boiler body includes a first sealing groove, a fixing hole, a sealing groove, a second sealing groove, and a sealing plug hole. The top of the boiler body is provided with a first sealing groove, the inner wall of the first sealing groove is provided with a fixing hole, the bottom of the first sealing groove is provided with a sealing groove, the inner side of the sealing groove is provided with a second sealing groove, the bottom of the second sealing groove is provided with a sealing plug hole, the inner diameter of the first sealing groove is adapted to the outer diameter of the sealing cover, the sealing cover is movably inserted into the first sealing groove, and multiple fixing holes are provided and symmetrically distributed around the inner wall of the first sealing groove.

[0008] In a preferred embodiment of this invention, the electromagnetic control valve is electrically connected to the controller via a wire.

[0009] As a preferred embodiment of this utility model, the sealing cover includes a handwheel, a rotating shaft, a movable groove, a compression spring, a fixing pin, a pull rope, a sealing ring, a sealing plate, and a sealing plug. The sealing cover has a handwheel at its top, a rotating shaft inside, a movable groove inside, a compression spring inside the movable groove, a fixing pin at one end of the compression spring, a pull rope fixedly connected to the rotating shaft, a sealing ring at the bottom of the sealing cover, a sealing plate inside the sealing ring, and a sealing plug at the bottom of the sealing plate. The handwheel is connected to the rotating shaft via a bearing. The pull rope passes through the compression spring and is fixedly connected to one end of the fixing pin. The outer diameter of the fixing pin matches the inner diameter of the fixing hole, and the fixing pin is movably inserted into the fixing hole.

[0010] As a preferred embodiment of this utility model, the outer diameters of the sealing ring, sealing plate, and sealing plug are respectively adapted to the inner diameters of the sealing groove, the second sealing groove, and the sealing plug hole. The sealing ring, sealing plate, and sealing plug are respectively movably inserted into the sealing groove, the second sealing groove, and the sealing plug hole. The sealing ring, sealing plate, and sealing plug are all made of rubber material.

[0011] As a preferred technical solution of this utility model, the water level monitoring sensing mechanism includes a signal converter, an upper sensing plate, a detection rod, a float, and a lower sensing plate. The signal converter is fixedly installed at the bottom of the sealing plug. An upper sensing plate is fixedly installed at one end of the signal converter. A detection rod is fixedly installed at the bottom of the upper sensing plate. A float is provided on the detection rod. A lower sensing plate is provided at one end of the bottom of the detection rod. The signal converter is electrically connected to the display instrument and the controller through wires.

[0012] In a preferred embodiment of this invention, the upper and lower sensor plates are symmetrically distributed at both ends of the detection rod, and the float is movably connected to the detection rod.

[0013] Compared with the prior art, this utility model provides an automatic water replenishment device for water level control in a gas-fired boiler, which has the following beneficial effects:

[0014] 1. This automatic water replenishment device for gas-fired boiler water level control is implemented by using a signal converter, an upper sensor, a detection rod, a float, a lower sensor, a display instrument, a controller, and an electromagnetic control valve. The float can adjust its position according to the water level. Utilizing the principle of magnetic coupling, the signal converter displays the change in resistance on the display instrument for easy observation of the water level. Simultaneously, when the water level inside the boiler is too low or too high, the float touches the lower or upper sensor, and the signal converter sends a feedback signal to the controller. The controller can then control the electromagnetic control valve to open or close, facilitating automatic water replenishment or cessation of water replenishment into the boiler. The device is easy to operate and improves its automation level.

[0015] 2. This automatic water replenishment device for gas-fired boiler water level control uses a combination of a first sealing groove, a fixing hole, a sealing cover, a handwheel, a rotating shaft, a movable groove, a compression spring, a fixing pin, and a pull rope. The fixing pin is movably inserted into the fixing hole. Rotating the handwheel drives the rotating shaft to rotate, facilitating the pulling of the pull rope to adjust the fixing pin. This allows the fixing pin to be separated from the fixing hole, enabling quick disassembly of the water level monitoring sensor mechanism for easy maintenance and repair, or cleaning of surface scale, thus improving its usability. The combination of a sealing groove, a second sealing groove, a sealing plug hole, a sealing ring, a sealing plate, and a sealing plug enhances the sealing performance between the sealing cover and the boiler body, preventing internal steam leakage and ensuring optimal operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the main body of the boiler according to this utility model;

[0018] Figure 3 This is a cross-sectional view of the sealing cover and a schematic diagram of the water level monitoring sensor mechanism of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the bottom structure of the sealing cap of this utility model.

[0021] In the diagram: 1. Boiler body; 101. First sealing groove; 102. Fixing hole; 103. Sealing groove; 104. Second sealing groove; 105. Sealing plug hole; 2. Electromagnetic control valve; 3. Water inlet pipe; 4. Display instrument; 5. Controller; 6. Sealing cover; 601. Handwheel; 602. Rotating shaft; 603. Movable groove; 604. Compression spring; 605. Fixing pin; 606. Pull rope; 607. Sealing ring; 608. Sealing plate; 609. Sealing plug; 7. Water level monitoring sensor mechanism; 701. Signal converter; 702. Upper sensor plate; 703. Detection rod; 704. Float; 705. Lower sensor plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 In this embodiment: an automatic water replenishment device for water level control of a gas-fired boiler includes a boiler body 1, an electromagnetic control valve 2 fixedly installed on one side of the boiler body 1, a water inlet pipe 3 provided on one side of the electromagnetic control valve 2, a display instrument 4 fixedly installed on one side of the boiler body 1, a controller 5 fixedly installed at the bottom of the display instrument 4, a sealing cover 6 provided on the top of the boiler body 1, and a water level monitoring sensor mechanism 7 provided at the bottom of the sealing cover 6.

[0024] Reference Figure 2 The boiler body 1 includes a first sealing groove 101, a fixing hole 102, a sealing groove 103, a second sealing groove 104, and a sealing plug hole 105. The top of the boiler body 1 is provided with the first sealing groove 101, the inner wall of the first sealing groove 101 is provided with the fixing hole 102, the bottom of the first sealing groove 101 is provided with the sealing groove 103, the inner side of the sealing groove 103 is provided with the second sealing groove 104, and the bottom of the second sealing groove 104 is provided with the sealing plug hole 105. The inner diameter of the first sealing groove 101 is adapted to the outer diameter of the sealing cover 6. The sealing cover 6 is movably inserted into the first sealing groove 101. Multiple fixing holes 102 are provided and symmetrically distributed around the inner wall of the first sealing groove 101.

[0025] Specifically: It facilitates the connection and installation of the sealing cover 6, while also improving the sealing performance of the connection and installation.

[0026] Reference Figure 1 The electromagnetic control valve 2 is electrically connected to the controller 5 via a wire;

[0027] Specifically: It allows for easy control of its opening and closing, facilitating automatic water replenishment.

[0028] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The sealing cover 6 includes a handwheel 601, a rotating shaft 602, a movable groove 603, a compression spring 604, a fixing pin 605, a pull rope 606, a sealing ring 607, a sealing plate 608, and a sealing plug 609. The handwheel 601 is located at the top of the sealing cover 6. The rotating shaft 602 is located inside the sealing cover 6. The movable groove 603 is located inside the sealing cover 6. The compression spring 604 is located inside the movable groove 603. A fixing pin 605 is located at one end of the compression spring 604. A pull rope 606 is fixedly connected to the rotating shaft 602. The sealing ring 607 is located at the bottom of the sealing cover 6. The sealing plate 608 is located inside the sealing ring 607. A sealing plug 609 is located at the bottom of the sealing plate 608. The handwheel 601... 1. A pull rope 606 is connected to a rotating shaft 602 via a bearing. The pull rope 606 passes through a compression spring 604 and is fixedly connected to one end of a fixing pin 605. The outer diameter of the fixing pin 605 is adapted to the inner diameter of the fixing hole 102. The fixing pin 605 is movably inserted into the fixing hole 102. The outer diameters of the sealing ring 607, sealing plate 608, and sealing plug 609 are adapted to the inner diameters of the sealing groove 103, the second sealing groove 104, and the sealing plug hole 105, respectively. The sealing ring 607, sealing plate 608, and sealing plug 609 are movably inserted into the sealing groove 103, the second sealing groove 104, and the sealing plug hole 105, respectively. The sealing ring 607, sealing plate 608, and sealing plug 609 are all made of rubber material.

[0029] Specifically: It facilitates quick installation or removal of the sealing cover 6, while also improving the sealing performance between it and the boiler body 1.

[0030] Reference Figure 3 and Figure 5 The water level monitoring sensing mechanism 7 includes a signal converter 701, an upper sensing element 702, a detection rod 703, a float 704, and a lower sensing element 705. The signal converter 701 is fixedly installed at the bottom of the sealing plug 609. The upper sensing element 702 is fixedly installed at one end of the signal converter 701. The detection rod 703 is fixedly installed at the bottom of the upper sensing element 702. The float 704 is provided on the detection rod 703. The lower sensing element 705 is provided at one end of the bottom of the detection rod 703. The signal converter 701 is electrically connected to the display instrument 4 and the controller 5 through wires. The upper sensing element 702 and the lower sensing element 705 are symmetrically distributed at both ends of the detection rod 703. The float 704 is movably sleeved with the detection rod 703.

[0031] Specifically: It facilitates monitoring of the water level inside the boiler body 1, enabling timely automatic water replenishment and convenient operation.

[0032] The working principle and usage process of this utility model are as follows: During operation, the float 704 can float and rise according to the water level inside the boiler body 1. Utilizing the principle of magnetic coupling, the water level inside the boiler body 1 can be determined by observing the resistance value on the display instrument 4. At the same time, when the water level inside the boiler body 1 is too low or too high, the float 704 touches the lower sensor 705 or the upper sensor 702, and the signal converter 701 can send a signal feedback to the controller 5. The controller 5 can control the electromagnetic control valve 2 to open or close, facilitating the injection or cessation of water injection into the boiler body 1. The operation is convenient and can improve its automation level. By rotating the handwheel 601, the rotating shaft 602 can be rotated, which facilitates the pulling rope 606 to move and adjust the fixing pin 605. This allows the fixing pin 605 to be separated from the fixing hole 102, thereby enabling quick disassembly of the water level monitoring sensor mechanism 7, which is convenient for staff to inspect, maintain, or clean.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas boiler water level control automatic water supply device comprising a boiler body (1), characterized in that: The boiler body (1) one side is equipped with electromagnetic control valve (2), one side of electromagnetic control valve (2) is equipped with inlet pipe (3), the boiler body (1) one side is equipped with display instrument (4), display instrument (4) bottom is equipped with controller (5), the boiler body (1) top is equipped with sealing cover (6), sealing cover (6) bottom is equipped with water level monitoring sensor mechanism (7).

2. A water level control automatic water feeding device for gas boiler according to claim 1, characterized in that: The boiler body (1) includes a first sealing groove (101), a fixing hole (102), a sealing groove (103), a second sealing groove (104) and a sealing plug hole (105), the boiler body (1) top is equipped with first sealing groove (101), the first sealing groove (101) inner wall is equipped with fixing hole (102), the first sealing groove (101) bottom is equipped with sealing groove (103), the sealing groove (103) inner side is equipped with second sealing groove (104), the second sealing groove (104) bottom is equipped with sealing plug hole (105), the first sealing groove (101) inner diameter size is matched with the outer diameter size of sealing cover (6), the sealing cover (6) is movably inserted into the first sealing groove (101), the fixing hole (102) is provided with a plurality of fixing holes, and the fixing holes are symmetrically distributed on the inner wall of the first sealing groove (101).

3. The automatic water feeding device for water level control of a gas boiler according to claim 1, characterized in that: The electromagnetic control valve (2) is electrically connected with the controller (5) through wires.

4. The automatic water feeding device for water level control of a gas boiler according to claim 1, characterized in that: The sealing cover (6) includes a hand wheel (601), a shaft (602), a movable groove (603), a compression spring (604), a fixed pin (605), a pull rope (606), a sealing ring (607), a sealing plate (608) and a sealing plug (609), the sealing cover (6) top is equipped with hand wheel (601), the sealing cover (6) inside is equipped with rotating shaft (602), the sealing cover (6) inside is equipped with movable groove (603), the movable groove (603) inside is equipped with compression spring (604), one end of the compression spring (604) is equipped with fixed pin (605), the rotating shaft (602) is fixedly connected with pull rope (606), the sealing cover (6) bottom is equipped with sealing ring (607), the sealing ring (607) inside is equipped with sealing plate (608), the sealing plate (608) bottom is equipped with sealing plug (609), the hand wheel (601) is connected with the rotating shaft (602) through the bearing, the pull rope (606) penetrates the compression spring (604) and is fixedly connected with one end of the fixed pin (605), the fixed pin (605) outer diameter size is matched with the inner diameter size of the fixing hole (102), and the fixed pin (605) is movably inserted into the fixing hole (102).

5. A gas boiler water level control automatic water replenishment device according to claim 4, characterized in that: The outer diameter sizes of the sealing ring (607), the sealing plate (608) and the sealing plug (609) are respectively matched with the inner diameter sizes of the sealing groove (103), the second sealing groove (104) and the sealing plug hole (105), the sealing ring (607), the sealing plate (608) and the sealing plug (609) are respectively movably inserted into the sealing groove (103), the second sealing groove (104) and the sealing plug hole (105), and the sealing ring (607), the sealing plate (608) and the sealing plug (609) are all made of rubber material.

6. A water level control automatic water feeding device for gas boiler according to claim 1, characterized in that: The water level monitoring sensor mechanism (7) comprises a signal converter (701), an upper sensing sheet (702), a detection rod (703), a floating ball (704) and a lower sensing sheet (705), the signal converter (701) is fixedly installed at the bottom of the sealing plug (609), one end of the signal converter (701) is fixedly installed with the upper sensing sheet (702), the bottom of the upper sensing sheet (702) is fixedly installed with the detection rod (703), the detection rod (703) is provided with the floating ball (704), one end of the bottom of the detection rod (703) is provided with the lower sensing sheet (705), and the signal converter (701) is electrically connected with the display instrument (4) and the controller (5) through wires.

7. A gas boiler water level control automatic water replenishment device according to claim 6, characterized in that: The upper sensing sheet (702) and the lower sensing sheet (705) are symmetrically distributed at two ends of the detection rod (703), and the floating ball (704) is movably sleeved with the detection rod (703).

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