A boiler capable of preventing water shortage

Abstract

This utility model relates to the field of boiler technology, specifically to a boiler designed to prevent boiler explosion due to water shortage. The boiler includes a boiler body with a combustion chamber inside. A vent pipe with a solenoid valve is located at one end of the combustion chamber. A water storage chamber is located between the combustion chamber and the boiler body. Three sets of liquid level monitors are distributed in the water storage chamber from high to low. A connecting pipe with an adjustment component is located at the upper end of the water storage chamber. An indicator light is located at one end of the upper side wall of the boiler body. A control panel for controlling the above devices is located on one side of the boiler body. The adjustment component includes a speed-regulating pump, a baffle, a control lever, and a control motor, enabling more precise detection of abnormal water levels and ensuring that the boiler water level is always maintained within a safe range, thus avoiding the risk of boiler explosion due to dry burning caused by water shortage.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, specifically to a boiler that prevents boiler explosion caused by water shortage. Background Technology

[0002] As we all know, existing boilers, as the core equipment that converts the chemical energy of fuel into thermal energy and then produces steam or hot water, have an extremely wide range of applications. With the growth of energy demand and the improvement of environmental protection requirements, boiler equipment is constantly developing towards larger size and higher efficiency. However, at the same time, the safety risks of equipment operation are becoming increasingly prominent.

[0003] Specifically, during boiler operation, water is an important heat transfer medium. If the water level is too low, the heat in the combustion chamber cannot be effectively carried away, which will cause the temperature of components such as the furnace to rise sharply. High temperature will reduce the strength of metal materials, causing the furnace body to deform, crack, or even cause a devastating furnace explosion.

[0004] Existing boiler water level monitoring methods are relatively simple, mostly relying on single-point level sensors. Operators often struggle to detect abnormal water levels in a timely manner. Furthermore, some boilers still use manual water replenishment or simple float valve water replenishment devices. The former requires frequent inspections by operators, resulting in high labor costs and the risk of delayed water replenishment due to negligence. The latter makes it difficult to accurately adjust the water replenishment amount according to actual boiler load changes, potentially leading to over- or under-replenishment. If water shortages are not addressed promptly, the boiler will continue to run dry, significantly shortening its lifespan and potentially triggering a chain reaction of pipe bursts, gas leaks, and other problems, causing incalculable economic losses and environmental pollution. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, this utility model provides a boiler that prevents boiler explosion caused by water shortage.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a boiler that prevents boiler explosion due to water shortage, comprising a boiler body, a combustion chamber provided in the boiler body, a vent pipe with a solenoid valve provided at one end of the combustion chamber, a water storage chamber provided between the combustion chamber and the boiler body, three sets of liquid level monitors distributed from high to low in the water storage chamber, a connecting pipe with an adjustment component provided at the upper end of the water storage chamber, an indicator light provided at one end of the upper side wall of the boiler body, and a control panel for controlling the above devices provided on one side of the boiler body.

[0009] In order to flexibly control the water replenishment amount based on the information fed back by the water level monitor, the present invention has the following improvements: the adjustment component includes a speed-regulating pump, a baffle, a control rod and a control motor. The baffle is adapted to the connecting pipe. The control rod passes through the baffle and the connecting pipe. The control motor is on one side of the connecting pipe. One end of the control rod is connected to the output end of the control motor. The input end of the speed-regulating pump is connected to the connecting pipe, and the output end is connected to the water storage chamber.

[0010] In order to intuitively reflect the water level status of the water storage chamber, the present invention has the following improvements: the indicator light is equipped with three sets of bulbs of different colors, namely green, yellow and red. The green bulb is connected to the high-level monitor signal, the yellow bulb is connected to the mid-level monitor signal, and the red bulb is connected to the low-level monitor signal.

[0011] To facilitate the inspection, cleaning, or replacement of components inside the combustion chamber by staff, the present invention is improved by providing an opening on one side wall of the combustion chamber, and a protective cover that can be opened and closed is provided on the opening.

[0012] To enable remote monitoring via mobile app, this utility model is improved by including a Bluetooth connection module on the control panel, which allows for remote monitoring of the boiler's operating status, adjustment of water level parameters, and receipt of fault alarm information via a mobile app.

[0013] In order to display the water level in the water storage chamber, the temperature of the combustion chamber, and the working status of each device in real time, the present invention is improved by: a display screen is provided on the control panel, which is used to display the water level in the water storage chamber, the temperature of the combustion chamber, and the working status of each device in real time.

[0014] In order to quickly cut off the gas supply in case of abnormal situations, the present invention is improved by the following: the solenoid valve on the vent pipe is a normally closed explosion-proof solenoid valve.

[0015] In order to effectively resist the corrosion of water and impurities in the water storage cavity, the present invention is improved by: the inner wall of the water storage cavity is coated with an anti-corrosion coating, which is made of epoxy resin material.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a boiler that prevents boiler explosion caused by water shortage, and has the following beneficial effects:

[0018] This boiler, designed to prevent boiler explosions due to water shortage, is equipped with three sets of liquid level monitors distributed from high to low. These monitors can comprehensively monitor water level changes in real time. The high-level monitor confirms sufficient water level, the mid-level monitor indicates that the water level is within the critical value of the normal operating range, and the low-level monitor provides timely feedback when the water level reaches the danger threshold. This layered monitoring mode, compared to a single sensor, can more accurately detect water level anomalies and avoid misjudgments or missed judgments caused by sensor failure or monitoring blind spots, providing reliable data support for the safe operation of the boiler.

[0019] Equipped with an adjustment component, it can intelligently replenish water based on feedback from the liquid level monitor. When a drop in water level is detected, the control motor drives the control lever to adjust the opening size of the baffle. At the same time, the speed-regulating pump adjusts the flow rate according to actual needs. It can quickly replenish a large amount of water when the water level is low, and make precise fine adjustments when the water level is close to normal to prevent excessive water replenishment. This automated and precise water replenishment control ensures that the boiler water level is always maintained within a safe range, avoiding the risk of boiler explosion caused by dry burning due to water shortage.

[0020] The indicator lights on the upper side wall of the boiler use different colors to visually display the water level status. Green indicates a normal water level, yellow warns of a low water level requiring attention, and red warns that the water level has reached a dangerously low level. Operators can grasp the general water level of the boiler at a glance without complicated operations. At the same time, the display screen on the control panel shows the water level in the storage chamber, the temperature in the combustion chamber, and the working status of each device in real time. Combined with the indicator light information, staff can quickly judge the boiler's operating status and respond in a timely manner. Attached Figure Description

[0021] Figure 1 This is a first-view schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a second-view schematic diagram of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal cross-section of the furnace body of this utility model.

[0024] Figure 4 This is an exploded view of the structural adjustment component of this utility model.

[0025] In the diagram: 1. Furnace body; 2. Vent pipe; 3. Solenoid valve; 4. Connecting pipe; 5. Speed ​​regulating pump; 6. Control motor; 7. Indicator light; 8. Protective cover; 9. Control panel; 10. Opening; 11. Combustion chamber; 12. Liquid level monitor; 13. Baffle; 14. Control lever. Detailed Implementation

[0026] 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.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Please see Figure 1-4 A boiler designed to prevent boiler explosion due to water shortage includes a boiler body 1. A combustion chamber 11 is located within the boiler body 1. A vent pipe 2 with a solenoid valve 3 is located at one end of the combustion chamber 11. A water storage chamber is located between the combustion chamber 11 and the boiler body 1. Three sets of liquid level monitors 12 are distributed in the water storage chamber from high to low. A connecting pipe 4 with an adjustment assembly is located at the upper end of the water storage chamber. An indicator light 7 is located at one end of the upper side wall of the boiler body 1. A control panel 9 for controlling the above-mentioned devices is located on one side of the boiler body 1. The adjustment assembly includes a speed regulating pump 5 and a baffle 1. 3. Control rod 14 and control motor 6. The baffle 13 is adapted to the connecting pipe 4. The control rod 14 passes through the baffle 13 and the connecting pipe 4. The control motor 6 is on one side of the connecting pipe 4. One end of the control rod 14 is connected to the output end of the control motor 6. The input end of the speed regulating pump 5 is connected to the connecting pipe 4, and the output end is connected to the water storage chamber. An opening 10 is provided on one side wall of the combustion chamber 11. A switchable protective cover 8 is provided on the opening 10. The control panel 9 is provided with a Bluetooth connection module, which can remotely monitor the boiler's operating status, adjust water level parameters, and receive fault alarm information via a mobile APP. The control panel 9 is provided with a display screen, which is used to display the water level in the water storage chamber, the temperature of the combustion chamber 11, and the working status of each device in real time.

[0030] During use, place the boiler body 1 in a stable and safe location. Connect the water storage chamber to an external water source (such as a water tank or water supply pipeline) via connecting pipe 4. Seal the interface between connecting pipe 4 and the water storage chamber with a sealing gasket to prevent leakage. Then, fill the water storage chamber with water until it reaches the appropriate initial water level. Simultaneously, connect the vent pipe 2 to the external gas pipeline. The solenoid valve 3 on the vent pipe 2 should be in the closed position to ensure no gas leakage. After the connection is complete, perform preliminary setup and checks on the entire system via control panel 9 to confirm that all components are connected correctly, preparing for boiler startup.

[0031] Once ready, the operator starts the boiler via control panel 9. At this time, control panel 9 sends an electrical signal to solenoid valve 3 on the vent pipe 2. When solenoid valve 3 is energized, its internal electromagnetic coil generates electromagnetic force, overcoming spring resistance and lifting the valve core, opening the vent pipe 2. Gas (such as natural gas or liquefied petroleum gas) flows under pressure into combustion chamber 11 through vent pipe 2. After entering combustion chamber 11, the ignition device (such as an electronic igniter) generates an electric spark, igniting the gas and initiating combustion (this is a common boiler combustion method on the market, which will not be elaborated upon here). The generated heat is transferred to the water in the storage chamber through the walls of the combustion chamber 11 via heat conduction and radiation. The water in the storage chamber absorbs the heat, its temperature gradually rises until it reaches its boiling point and begins to boil, generating steam. The steam can be transported to where it is needed, such as for heating or industrial production, through internal pipes in the furnace body 1. During combustion, the control panel 9 monitors the temperature of the combustion chamber 11 in real time and controls the gas flow by adjusting the opening of the solenoid valve 3, thereby regulating the combustion intensity and maintaining the temperature of the combustion chamber 11 within a reasonable range, ensuring a stable and efficient heating process.

[0032] Meanwhile, three sets of level monitors 12, distributed from high to low within the water storage chamber, are constantly operational, monitoring the water level in real time. These three sets of level monitors 12 employ ultrasonic level sensors, whose working principle is based on the reflection characteristics of ultrasound. The ultrasonic transmitter inside the sensor emits a beam of ultrasound at regular intervals (e.g., 0.5 seconds). The ultrasound propagates through the air, reflects back upon encountering the water surface, and is received by the sensor's receiver. Based on the time interval between the emission and reception of the ultrasound waves, combined with the speed of ultrasound propagation in the air (which is temperature-dependent and typically compensated for), the sensor calculates the distance from the sensor to the water surface using a formula, thus determining the current water level.

[0033] The high-level liquid level monitor 12 is installed at a higher position in the water storage chamber to monitor the upper limit of the water level; the middle-level liquid level monitor 12 is installed in the middle position as a reference for the normal water level range; and the low-level liquid level monitor 12 is installed at a lower position to monitor the lower limit of the danger water level. The three sets of sensors continuously convert the monitored water level data into electrical signals, which are transmitted to the control panel 9. The microprocessor in the control panel 9 processes and analyzes these signals, comparing them with preset water level thresholds to determine the current water level status.

[0034] The control panel 9 determines the water level status based on the data transmitted by the level monitor 12 and controls the indicator lights 7 to display accordingly. Before the boiler starts operation, the operator can set preset water level values ​​through the control panel 9, including the water replenishment start water level and the water replenishment stop water level. For example, the water replenishment start water level can be set to the position of the intermediate level monitor 12, and the water replenishment stop water level can be set to a certain distance below the high level monitor 12. When the level monitor 12 detects that the water level has dropped to the preset water replenishment start water level, the control panel 9 will react immediately.

[0035] First, the control panel 9 sends an electrical signal to the control motor 6 in the regulating assembly. Once powered on, the control motor 6 starts operating, and its output shaft drives the control lever 14 to rotate. As the control lever 14 rotates, it drives the baffle 13 to rotate around its fixed axis, gradually opening the passage of the connecting pipe 4, allowing water from the external water source to flow into the connecting pipe 4. Simultaneously, the control panel 9 sends a start signal to the speed-regulating pump 5, which is then powered on and begins to draw water from the connecting pipe 4, pressurizing and delivering the water to the storage chamber. The speed of the speed-regulating pump 5 can be adjusted according to the instructions of the control panel 9. When the water level is low, the speed-regulating pump 5 operates at a higher speed to accelerate the water replenishment. As the water level gradually rises, the speed of the speed-regulating pump 5 gradually decreases to achieve precise water replenishment and prevent the water level from becoming too high. During the water replenishment process, the level monitor 12 continuously monitors the water level changes and feeds the data back to the control panel 9 in real time. When the water level rises to the preset value for stopping water replenishment, the control panel 9 controls the control motor 6 to reverse, driving the baffle 13 to close the passage of the connecting pipe 4, and simultaneously stopping the speed-regulating pump 5, completing the water replenishment process.

[0036] When the water level drops below the low-level liquid level monitor 12, the boiler enters a dangerous state. The control panel 9 will immediately take a series of emergency measures. First, it sends a power-off signal to the solenoid valve 3 on the vent pipe 2. The solenoid valve 3 closes quickly under the action of the spring force, cutting off the gas supply and preventing the combustion chamber 11 from continuing to heat, thus avoiding a dry-burning accident that could lead to a boiler explosion. At the same time, the control panel 9 sends an emergency alarm message to the mobile APP via Bluetooth connection module, notifying relevant personnel that the boiler is experiencing a severe water shortage so that it can be dealt with promptly. After issuing the alarm and cutting off the gas supply, the speed-regulating pump 5 will run at maximum speed to draw water from the external water source to replenish the water storage chamber, striving to raise the water level to a safe range in the shortest possible time. Only when the water level rises to a safe height (such as a certain distance above the low-level liquid level monitor 12), and the operator confirms safety, will the boiler be de-escalated and return to normal operation via the control panel 9.

[0037] The opening 10 and the switchable protective cover 8 on one side wall of the combustion chamber 11 provide convenience for boiler maintenance and repair. Staff can periodically open the protective cover 8 to clean the inside of the combustion chamber 11, check the operating status of components such as the burner and ignition device, and promptly detect and deal with problems such as ash accumulation and damage to ensure the normal operation of the combustion system.

[0038] In practical use, it is necessary to intuitively reflect the water level status of the water storage chamber. To meet this requirement, in this embodiment, the indicator light 7 is equipped with three sets of bulbs of different colors: green, yellow, and red. The green bulb is connected to the high-level monitor signal, the yellow bulb is connected to the mid-level monitor signal, and the red bulb is connected to the low-level monitor signal.

[0039] When the water level in the water storage chamber is above the high-level liquid level monitor 12, indicating sufficient water, the green bulb in indicator light 7 lights up, signifying normal boiler operation and a safe water level. When the water level drops to between the mid-level and high-level liquid level monitors 12, the yellow bulb lights up, alerting the operator that the water level is too low and requires attention and preparation for water replenishment. If the water level continues to drop below the mid-level liquid level monitor 12 and approaches the low-level liquid level monitor 12, the yellow bulb will flash more frequently, further indicating a continued drop in water level. Once the water level drops to or below the low-level liquid level monitor 12, the red bulb lights up, and the control panel 9 triggers the alarm device to sound an alarm. This indicates that the water level is in a dangerous state and may cause the boiler to run dry due to water shortage, requiring immediate measures to replenish water.

[0040] In actual use, it is necessary to quickly cut off the gas supply when encountering abnormal situations (such as water shortage alarm) and to have explosion-proof characteristics. In order to meet the above requirements, in this embodiment, the solenoid valve 3 on the vent pipe 2 is a normally closed explosion-proof solenoid valve 3.

[0041] In actual use, it is necessary to effectively resist the corrosion of water and impurities in the water storage cavity and extend the service life of the water storage cavity. In order to meet the above requirements, in this embodiment, the inner wall of the water storage cavity is coated with an anti-corrosion coating, which is made of epoxy resin material.

[0042] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boiler to prevent the boiler from being blown up due to water shortage in the boiler, comprising a furnace body (1), characterized in that: The furnace body (1) is provided with a combustion chamber (11). One end of the combustion chamber (11) is provided with a vent pipe (2) with a solenoid valve (3). A water storage chamber is provided between the combustion chamber (11) and the furnace body (1). Three sets of liquid level monitors (12) are distributed in the water storage chamber from high to low. A connecting pipe (4) with an adjustment component is provided at the upper end of the water storage chamber. An indicator light (7) is provided at one end of the upper side wall of the furnace body (1). A control panel (9) for controlling the above-mentioned devices is provided on one side of the furnace body (1).

2. A boiler according to claim 1, wherein: The regulating assembly includes a speed regulating pump (5), a baffle (13), a control rod (14), and a control motor (6). The baffle (13) is adapted to the connecting pipe (4). The control rod (14) passes through the baffle (13) and the connecting pipe (4). The control motor (6) is on one side of the connecting pipe (4). One end of the control rod (14) is connected to the output end of the control motor (6). The input end of the speed regulating pump (5) is connected to the connecting pipe (4), and the output end is connected to the water storage chamber.

3. A boiler according to claim 1, wherein: the boiler is provided with a water level sensor for detecting the water level in the boiler, and the controller is connected to the water level sensor and is adapted to control the operation of the pump in response to the water level detected by the water level sensor. The indicator light (7) is equipped with three sets of bulbs of different colors, namely green, yellow and red. The green bulb is connected to the high-level monitor signal, the yellow bulb is connected to the mid-level monitor signal, and the red bulb is connected to the low-level monitor signal.

4. A boiler according to claim 1 for preventing boiler explosion due to water shortage, characterized in that: An opening (10) is provided on one side wall of the combustion chamber (11), and a protective cover (8) that can be opened and closed is provided on the opening (10).

5. A boiler according to claim 1 for preventing boiler explosion due to water shortage, characterized in that: The control panel (9) is equipped with a Bluetooth connection module, which can remotely monitor the boiler's operating status, adjust water level parameters, and receive fault alarm information via a mobile APP.

6. A boiler according to claim 1 for preventing boiler explosion due to water shortage, characterized in that: The control panel (9) is equipped with a display screen, which is used to display the water level in the water storage chamber, the temperature of the combustion chamber (11), and the working status of each device in real time.

7. A boiler according to claim 1 for preventing boiler explosion due to water shortage, characterized in that: The solenoid valve (3) on the vent pipe (2) is a normally closed explosion-proof solenoid valve (3).

8. A boiler according to claim 1 for preventing boiler explosion due to water shortage, characterized in that: The inner wall of the water storage cavity is coated with an anti-corrosion coating made of epoxy resin.

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