Water shortage protection device of natural gas boiler

Abstract

The utility model discloses a water shortage protection device of a natural gas boiler, which relates to the technical field of boiler safety protection and comprises a boiler body, a control console is mounted on the outer wall of one side of the boiler body, a mounting plate is mounted on one side of the bottom end of the control console, and a fixing plate is fixedly connected to the outer wall of one side of the mounting plate. A first sliding block is slidably connected to the top end of the fixing plate, a temperature sensing wax bottle is mounted on the outer wall of one side of the first sliding block, a fixing block is fixedly connected to one side of the top end of the first sliding block, a second sliding block is slidably connected to the top end of the first sliding block, and a fixing rod is mounted on the outer wall of one side of the second sliding block; according to the utility model, the physical characteristics of the temperature sensing wax are utilized to carry out temperature monitoring and action triggering, so that the dependence on an electronic system is eliminated, the influence of factors such as electromagnetic radiation and voltage fluctuation is avoided, the device can stably work in a complex boiler environment, and the reliability of the protection device is improved.

Description

Technical Field

[0001] This utility model relates to the field of boiler safety protection technology, specifically a water shortage protection device for a natural gas boiler. Background Technology

[0002] Natural gas boilers, as a highly efficient and clean energy conversion device, are widely used in industrial production and residential heating. They heat water by burning natural gas to produce steam or hot water, providing heat energy for various production and living processes. However, natural gas boilers face many safety risks during operation. When the boiler is short of water, the temperature of the furnace shell, furnace tubes and other heated surfaces will rise sharply due to lack of water cooling. This will not only lead to a decrease in the strength of the boiler's metal materials, causing serious accidents such as deformation and cracking, but may also cause incomplete combustion of natural gas, producing harmful gases such as carbon monoxide, which pose a threat to the environment and human safety.

[0003] In existing technologies, traditional electronic water shortage protection devices often rely on complex circuits and electronic components. In the harsh operating environment of boilers, which is full of electromagnetic interference, high temperature and high pressure, and may contain corrosive gases, electronic components are easily interfered with or damaged, which may cause the protection device to malfunction or fail to operate.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a water shortage protection device for a natural gas boiler to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a water shortage protection device for a natural gas boiler, including a boiler body, a control panel installed on one outer wall of the boiler body, an installation plate installed on one bottom side of the control panel, a fixing plate fixedly connected to one outer wall of the installation plate, a first sliding block slidably connected to the top of the fixing plate, a temperature-sensing wax bottle installed on one outer wall of the first sliding block, a fixing block fixedly connected to one top side of the first sliding block, a second sliding block slidably connected to the top of the first sliding block, a fixing rod installed on one outer wall of the second sliding block, a spring sleeved on the outer wall of the fixing rod, a probe installed on the side of the second sliding block away from the fixing rod, a trigger rod rotatably connected to one top side of the fixing plate, and a button installed on the side of the installation plate near the probe.

[0007] Furthermore, one end of the spring is connected to the second sliding block, and the other end of the spring is connected to the fixed block.

[0008] Furthermore, a stop block is installed on the side of the fixed block away from the second sliding block, and the stop block is fixedly connected to the fixed rod.

[0009] Furthermore, a display screen is installed on one side of the outer wall of the console, a slot is opened at the bottom of the outer wall of the console near the mounting plate, a stop is installed on one side of the top of the second sliding block, and an abutment is installed on one side of the bottom of the trigger rod. The shape of the outer wall of the stop and the abutment is fitted together.

[0010] Furthermore, the temperature-sensitive wax bottle contains temperature-sensitive wax, and a push rod is slidably connected to one end of the temperature-sensitive wax bottle. The temperature-sensitive wax bottle is connected to the first sliding block through the push rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By utilizing the physical properties of temperature-sensitive wax for temperature detection and action triggering, the system eliminates reliance on electronic systems and is unaffected by electromagnetic radiation, voltage fluctuations, or other factors. It can operate stably in complex boiler environments, thus improving the reliability of the protection device.

[0013] 2. The temperature-sensing wax has unique thermal expansion characteristics. Its expansion coefficient and melting point can be precisely selected and adjusted according to the actual operating temperature range of the boiler. When the temperature inside the boiler rises due to water shortage, the temperature-sensing wax can quickly sense the temperature change and expand in volume. This precise temperature response characteristic allows the device to react in time at the early stage of potential water shortage in the boiler, avoiding serious damage to the boiler due to excessive temperature. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a water shortage protection device for a natural gas boiler.

[0015] Figure 2 This is a schematic diagram of the control console in a water shortage protection device for a natural gas boiler.

[0016] Figure 3 This is a schematic diagram of the overall structure of the triggering component in a water shortage protection device for a natural gas boiler.

[0017] Figure 4 This is a side view of the triggering component in a water shortage protection device for a natural gas boiler.

[0018] In the diagram: 1. Boiler body; 2. Control panel; 3. Mounting plate; 4. Fixing plate; 5. First sliding block; 6. Temperature-sensing wax bottle; 7. Fixing block; 8. Second sliding block; 9. Fixing rod; 10. Spring; 11. Probe; 12. Trigger rod; 13. Button. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4This utility model provides a technical solution: a water shortage protection device for a natural gas boiler, including a boiler body 1. The boiler body 1 provides components for the combustion of natural gas and the heating of water, realizing the conversion and transfer of heat energy to meet the needs of production and daily life such as heating. A control console 2 is installed on one side of the outer wall of the boiler body 1. The control console 2 is installed on one side of the outer wall of the boiler body 1, which facilitates the operator to centrally control and manage the boiler body 1, improving the convenience and efficiency of operation. At the same time, it can display the operating information of the control console 2 in real time, which is convenient for timely detection and handling of abnormal situations. An installation plate 3 is installed on one side of the bottom of the control console 2. A fixing plate 4 is fixedly connected to one side of the outer wall of the installation plate 3. The installation plate 3 ensures the accurate relative position between the components, providing a guarantee for the normal operation of the device. The top of the fixing plate 4... A sliding block 5 is slidably connected. A fixed plate 4 ensures the accuracy and stability of the movement of the first sliding block 5, provides a track for its sliding, and restricts its direction of movement, allowing it to move only in a fixed direction. A temperature-sensing wax bottle 6 is installed on one outer wall of the first sliding block 5. The first sliding block 5 is a linkage component of the temperature-sensing wax bottle 6, realizing the transmission of temperature changes into mechanical displacement. It converts the volume change of the temperature-sensing wax into the sliding of the first sliding block 5. The temperature-sensing wax bottle 6 contains temperature-sensing wax, which can sense the temperature change inside the boiler body 1. When the temperature rises, the temperature-sensing wax expands, pushing the push rod outward, thereby causing the first sliding block 5 to slide. Utilizing the thermal expansion characteristics of the temperature-sensing wax, it has a fast response speed and high sensitivity. The high accuracy allows for timely detection of changes in the boiler's internal temperature, providing an accurate temperature signal for the water shortage protection device. A fixed block 7 is fixedly connected to one side of the top of the first sliding block 5. A second sliding block 8 is slidably connected to the top of the first sliding block 5. A fixed rod 9 is installed on one side of the outer wall of the second sliding block 8, and a spring 10 is sleeved on the outer wall of the fixed rod 9. A probe 11 is installed on the side of the second sliding block 8 away from the fixed rod 9. A trigger rod 12 is rotatably connected to the top of one side of the fixed plate 4. A stop block is installed on one side of the top of the second sliding block 8, and an abutment block is installed on one side of the bottom of the trigger rod 12. The outer wall shapes of the sides of the stop block and the abutment block are closely fitted. During normal boiler operation, the second sliding block 8 is in its initial position, and there is no contact between the stop block and the abutment block. When the trigger rod 12 is in a naturally drooping state, and the boiler experiences a water shortage, the temperature inside the furnace rises. The temperature-sensitive wax in the temperature-sensitive wax bottle 6 expands, pushing the first sliding block 5 to slide. This, in turn, causes the second sliding block 8 and the top of the first sliding block 5 to slide. As the second sliding block 8 moves, the stop at its top gradually approaches the abutment block at the bottom of the trigger rod 12. When the second sliding block 8 slides to a certain position, the stop and the abutment block contact and fit together. Because their shapes fit together, the second sliding block 8 stops sliding. At this time, the spring 10 begins to store force. Subsequently, when one end of the trigger rod 12 abuts against the top of the fixed block 7, the trigger rod 12 lifts up, the spring 10 releases the stored force, and the probe 11 is pushed out. A button 13 is installed on the side of the mounting plate 3 near the probe 11.When probe 11 presses button 13, it triggers the boiler's protection mechanisms, such as cutting off fuel supply or stopping combustion, to prevent the boiler from malfunctioning due to water shortage.

[0021] See Figure 3 , Figure 4 One end of the spring 10 is connected to the second sliding block 8, and the other end of the spring 10 is connected to the fixed block 7. During the movement of the first sliding block 5, the spring 10 stores elastic potential energy, which is convenient for rapid release later.

[0022] See Figure 1 , Figure 2 A display screen is installed on one side of the outer wall of the control console 2. A slot is opened at the bottom of the outer wall of the control console 2 near the mounting plate 3. The control console 2 is the interface for the operator to interact with the boiler system. The display screen installed on it is used to display the boiler's operating parameters, such as temperature, pressure, and water level, so that the operator can understand the boiler's operating status in real time. The slot opened at the bottom of the outer wall near the mounting plate 3 allows the probe 11 to pass through and control the button 13.

[0023] Working principle: When the boiler body 1 is operating normally, the water level is normal, the internal temperature is within a reasonable range, the temperature-sensing wax in the temperature-sensing wax bottle 6 is in a stable state, the push rod has not moved and is in its initial position, and the first sliding block 5 is located at the initial position at the top of the fixed plate 4. When the boiler is short of water, the temperature inside the furnace rises, the temperature-sensing wax in the temperature-sensing wax bottle 6 expands due to heat, and pushes the push rod to drive the first sliding block 5 to slide along a fixed direction at the top of the fixed plate 4. The fixed block 7 moves with the first sliding block 5, one end of the spring 10 moves with the fixed block 7, and the other end is connected to the second sliding block 8. As the second sliding block 8 moves, the top stop gradually approaches the bottom abutment block of the trigger rod 12. When it moves to a certain position, the stop and the abutment block contact and fit together, and the second sliding block 8 stops sliding. At this time, the spring 10 continues to store force, and then one end of the trigger rod 12 contacts the top of the fixed block 7 and lifts up. The spring 10 releases its elastic potential energy, pushes the second sliding block 8 to slide, the probe 11 pops out, and the button 13 is pressed to trigger the boiler protection mechanism to prevent the boiler from being in danger due to water shortage.

[0024] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water shortage protection device for a natural gas boiler, comprising a boiler body (1), characterized in that: A control panel (2) is installed on one side of the outer wall of the boiler body (1). An installation plate (3) is installed on one side of the bottom of the control panel (2). A fixing plate (4) is fixedly connected to one side of the outer wall of the installation plate (3). A first sliding block (5) is slidably connected to the top of the fixing plate (4). A temperature-sensing wax bottle (6) is installed on one side of the outer wall of the first sliding block (5). A fixing block (7) is fixedly connected to one side of the top of the first sliding block (5). A second sliding block (8) is slidably connected to the top of the first sliding block (5). A fixing rod (9) is installed on one side of the outer wall of the second sliding block (8). A spring (10) is sleeved on the outer wall of the fixing rod (9). A probe (11) is installed on the side of the second sliding block (8) away from the fixing rod (9). A trigger rod (12) is rotatably connected to the top of one side of the fixing plate (4). A button (13) is installed on the side of the installation plate (3) close to the probe (11).

2. The water shortage protection device for a natural gas boiler as described in claim 1, characterized in that: One end of the spring (10) is connected to the second sliding block (8), and the other end of the spring (10) is connected to the fixed block (7).

3. A water shortage protection device for a natural gas boiler as described in claim 2, characterized in that: The fixing rod (9) has a stop block installed on the side of the fixing block (7) away from the second sliding block (8), and the stop block and the fixing rod (9) are fixedly connected.

4. A water shortage protection device for a natural gas boiler as described in claim 3, characterized in that: The temperature-sensitive wax bottle (6) is filled with temperature-sensitive wax. A push rod is slidably connected to one end of the temperature-sensitive wax bottle (6). The temperature-sensitive wax bottle (6) is connected to the first sliding block (5) through the push rod.

5. A water shortage protection device for a natural gas boiler as described in claim 4, characterized in that: A stop block is installed on one side of the top of the second sliding block (8), and an abutment block is installed on one side of the bottom of the trigger rod (12). The outer wall shape of the stop block and the abutment block is close to each other.

6. A water shortage protection device for a natural gas boiler as described in claim 5, characterized in that: A display screen is installed on one side of the outer wall of the console (2), and a slot is opened at the bottom of the outer wall of the console (2) near the mounting plate (3).

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