Boiler water supply device

Abstract

The utility model discloses a boiler water supply device, and relates to the technical field related to boiler water supply. The center of the top end of the water tank is fixedly communicated with a breather pipe, the upper part of the inner wall of the breather pipe is fixedly provided with a filter element, the bottom end of the water tank is fixedly provided with the support disc, the top end of the water tank at one side of the breather pipe is vertically inserted with a lifting rod in a penetrating manner, and the upper part of the peripheral side of the lifting rod is fixedly provided with the connecting strip; a pressing rod is fixed to the edge, away from the lifting rod, of the bottom of the connecting strip, a control rod is movably connected to the outer side of the pressing rod, a balancing weight is fixed to the top end of the control rod, a cavity is formed in the control rod, and a timing switch is fixed to the bottom face of the cavity. Through the arrangement of the water tank, the supporting disc, the connecting strip and the control rod, the problems that the automation degree of water supplementing operation of the boiler water supply device is not high enough, a filter element for filtering air of the water tank is prone to being stained with rainwater, and external impurities are prone to falling onto the filter element to affect the service life of the filter element are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of boiler water supply, and in particular relates to a boiler water supply device. Background Technology

[0002] As a core functional module of modern boiler systems, the boiler feedwater system precisely controls the flow of water, which has undergone multi-stage purification, to continuously supply the boiler with water that meets specific operating requirements. In industrial applications, this system not only covers traditional industrial boilers and district heating boilers but also plays a crucial role in high-end scenarios such as supercritical power plant boilers and combined cycle waste heat boilers. Its stable operation directly affects the boiler system's thermal efficiency, the lifespan of pressure-bearing components, and overall operational safety. However, it still has the following drawbacks in practical use:

[0003] During the operation of the boiler feedwater system, water is directly sent to the water tank for supply. The water level in the tank is monitored by a float and other means. When the water level in the tank drops to a specified value, the monitoring personnel need to activate the water supply valve to transfer water from the boiler to the water tank to ensure the supply of water to the boiler. However, this process requires the operator to monitor it at all times, and the degree of automation of the work is not high enough.

[0004] Furthermore, during the water replenishment and drainage process, air needs to enter and exit the water tank to maintain pressure balance within the tank. When air enters and exits, it directly passes through the filter element to purify the air. However, since the filter element's filtration surface is located in the external environment, if rainwater or debris falls onto it, it will accelerate the filter element's failure, resulting in higher operating costs. Utility Model Content

[0005] The purpose of this utility model is to provide a boiler water supply device that solves the problems of insufficient automation in the water replenishment operation of the boiler water supply device by setting up a water tank, support plate, connecting bar and control rod, and the problems of the filter element of the water tank filtering air being easily contaminated by rainwater and external impurities, which affect the service life of the filter element.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a boiler feedwater device, comprising a water tank, a support plate, a connecting strip, and a control rod. A vent pipe is fixedly connected to the center of the top of the water tank, and a filter element is fixed to the upper part of the inner wall of the vent pipe. A support plate is fixed to the bottom of the water tank. A lifting rod is vertically inserted through the top of the water tank on one side of the vent pipe. A connecting strip is fixed to the upper part of the periphery of the lifting rod. A pressure rod is fixed to the bottom edge of the connecting strip away from the lifting rod. A control rod is movably connected to the outer side of the pressure rod, and a counterweight is fixed to the top of the control rod. The control rod has a cavity, and a timer switch is fixed on the bottom surface of the cavity. The pressure rod passes through the top of the control rod and extends into the cavity. During operation, boiler water is stored in the water tank, which is supported on the support frame by a support plate. The filter element on the vent pipe at the top of the water tank prevents impurities in the air from entering the water tank. The pressure rod is set in the cavity by the control rod. After the pressure rod presses onto the timer switch, the electric control valve is activated and then closed at a time, replenishing the water tank with a fixed amount of boiler water.

[0008] Furthermore, the top end of the vent pipe is flush with the top end of the filter element, and a waterproof cover is provided above the vent pipe. The bottom end of the waterproof cover is fixed with fixing rods in a circular array. The bottom ends of the fixing rods are all fixed to the top of the water tank, and the waterproof cover is connected to the water tank through the fixing rods.

[0009] Furthermore, the bottom of the water tank is fixedly connected to an inlet pipe and a drain pipe, which are symmetrically arranged at the bottom of the water tank. When the water tank is working, water is replenished through the inlet pipe and supplied to the drain pipe to transport water to the drain pipe.

[0010] Furthermore, an electrically controlled valve is fixed around the water inlet pipe, and a water pump is installed below the drain pipe. The input end of the water pump is fixedly connected to the bottom end of the drain pipe. The water inlet pipe is controlled to open and close by the electrically controlled valve, and the water in the drain pipe is discharged by the water pump.

[0011] Furthermore, the support plate has vertically penetrating holes corresponding to the positions of the inlet pipe and the outlet pipe. The inlet pipe and the outlet pipe are respectively fixed in the fixing holes. Support frames are symmetrically fixed at the bottom of the support plate, and the inlet pipe and the outlet pipe are both arranged between two support frames. The support plate fixes the inlet pipe and the outlet pipe through the fixing holes and is supported on the ground by the support frames.

[0012] Furthermore, a float is fixed to the bottom end of the lifting rod, and the bottom end of the control rod is fixed to the top of the support plate outside the water tank. The lifting rod provides buoyancy through the float.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of insufficient automation in boiler feedwater replenishment by setting up a water tank, support plate, connecting bar, and control rod. Water is pumped into the pipeline to replenish the boiler, causing the water level in the tank to drop. This causes the float to drop in height within the tank, resulting in the lowering of the connecting bar and pressure rod connected to the lifting rod. After the pressure rod descends, it presses down on the timer switch in the cavity, opening the electric control valve. At this time, the inlet pipe delivers water to the water tank to replenish it. As the water level in the tank rises, the float rises, causing the pressure rod to move away from the timer switch. The timer switch then controls the electric control valve to close periodically, replenishing the tank with a fixed amount of water. A counterweight balances the float, keeping it suspended in the water in the tank and preventing it from draining completely, ensuring a constant water supply to the boiler. Furthermore, this design offers a higher degree of automation.

[0015] This invention solves the problem of water tank filters easily getting wet from rain and external impurities, thus affecting their lifespan, by incorporating a water tank. As air enters the water tank through the vent pipe, it is filtered by the filter element. This prevents dust and impurities from entering the water tank during operation, while a waterproof cover prevents external impurities from falling onto the filter element and prevents rainwater from entering the water tank through the filter element. This design effectively ensures the filter element's performance and extends its lifespan. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of a boiler feedwater device;

[0018] Figure 2 This is a three-dimensional structural diagram of the water tank;

[0019] Figure 3 A three-dimensional structural diagram of the support plate;

[0020] Figure 4 A three-dimensional view of the structure after the connecting strip and the half-section control rod are combined;

[0021] Figure 5 This is a three-dimensional view of the complete structure of a boiler feedwater device.

[0022] Figure label:

[0023] 1. Water tank; 101. Vent pipe; 102. Filter element; 103. Fixing rod; 104. Waterproof cover; 105. Inlet pipe; 106. Drain pipe; 107. Water pump; 108. Electric control valve; 2. Support plate; 201. Fixing hole; 202. Support frame; 3. Connecting strip; 301. Pressure rod; 302. Counterweight; 303. Lifting rod; 304. Float; 4. Control rod; 401. Cavity; 402. Timer switch. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0025] Please see Figure 1-3This utility model relates to a boiler water supply device, comprising a water tank 1, a support plate 2, a connecting strip 3, and a control rod 4. A vent pipe 101 is fixedly connected to the center of the top of the water tank 1. The water tank 1 is used for transferring and storing boiler water. The vent pipe 101 connects the water tank 1 to the atmosphere. A filter element 102 is fixed to the upper part of the inner wall of the vent pipe 101. The filter element 102 prevents dust and other impurities from entering the water tank 1 and contaminating the boiler water inside, while ensuring the ventilation function of the vent pipe 101. A support is fixed to the bottom of the water tank 1. Plate 2 supports water tank 1 on support frame 202. A lifting rod 303 is vertically inserted through the top of water tank 1 on one side of vent pipe 101. A float 304 connected to the lifting rod 303 is placed in water tank 1. The water in water tank 1 drives the lifting rod 303 to rise and fall. A connecting strip 3 is fixed to the upper part of the periphery of the lifting rod 303. The connecting strip 3 connects the pressure rod 301 and the float 304. The pressure rod 301 is fixed at the bottom edge of the connecting strip 3 away from the lifting rod 303. As the water level in water tank 1 rises and falls... The pressure rod 301 descends, causing the timer switch 402 to be pressed, opening the electric control valve 108 to replenish water to the water tank 1. A control rod 4 is movably connected to the outside of the pressure rod 301, and a counterweight 302 is fixed to the top of the control rod 4. The pressure generated by the counterweight 302, transmitted through the pressure rod 301, pushes the float 304 into the water in the water tank 1, keeping the float 304 suspended in the water tank 1 and preventing the water in the water tank 1 from being completely drained if the float 304 touches the bottom. A cavity 4 is provided inside the control rod 4. 01, and a timer switch 402 is fixed on the bottom surface of cavity 401. The pressure rod 301 passes through the top of the control rod 4 and extends into the cavity 401. The control rod 4 provides space for the pressure rod 301 to rise and fall through the cavity 401. The pressure rod 301 passes through the top of the cavity 401 and enters the cavity 401, so that the position of the pressure rod 301 corresponds to that of the timer switch 402. When the timer switch 402 is pressed down, the electric control valve 108 is activated and the electric control valve 108 is closed at regular intervals, so that a certain amount of water is added to the water tank 1 each time.

[0026] Specifically, the top of the vent pipe 101 is flush with the top of the filter element 102. A waterproof cover 104 is installed above the vent pipe 101. The bottom of the waterproof cover 104 is fixed with fixing rods 103 in a circular array. The bottom of the fixing rods 103 is fixed to the top of the water tank 1. The waterproof cover 104 is connected to the water tank 1 through the fixing rods 103 and is supported above the vent pipe 101. The waterproof cover 104 prevents external rainwater from falling onto the filter element 102 and entering the water tank 1, and also prevents objects falling from above the water tank 1 from falling onto the filter element 102.

[0027] Furthermore, the bottom of the water tank 1 is fixedly connected to an inlet pipe 105 and a drain pipe 106. The inlet pipe 105 and the drain pipe 106 are symmetrically arranged at the bottom of the water tank 1. The water tank 1 discharges water through the drain pipe 106. The bottom end of the inlet pipe 105 is connected to a pipeline with pressurized water input. After the electric control valve 108 is opened, water is replenished to the water tank 1.

[0028] The operation process of this embodiment is as follows: During operation, when water is replenished in water tank 1, boiler water is delivered to water tank 1 through water inlet pipe 105. At this time, the air in water tank 1 is pushed, passes through filter element 102 in vent pipe 101, and is sprayed out into waterproof cover 104. When water is drained from water tank 1, the air pressure in water tank 1 drops as water is drained through water pump 107. Outside air is filtered through filter element 102 on vent pipe 101 and enters water tank 1, maintaining normal air pressure in water tank 1. During the process of air entering water tank 1 through vent pipe 101, the air is filtered by filter element 102 in vent pipe 101. Filter element 102 prevents dust, impurities, etc. in the air from entering water tank 1 during operation. Waterproof cover 104 prevents external impurities from falling onto filter element 102 and prevents rainwater from entering water tank 1 through filter element 102. Specific Implementation

[0029] Please see Figure 1-5 Based on the first specific embodiment, an electric control valve 108 is fixed around the water inlet pipe 105, and a water pump 107 is installed below the drain pipe 106. The input end of the water pump 107 is fixedly connected to the bottom end of the drain pipe 106. When the water inlet pipe 105 is working, the electric control valve 108 controls the flow of water, and the water pump 107 is started to replenish water in the water tank 1.

[0030] Specifically, a fixing hole 201 is vertically opened in the support plate 2 corresponding to the positions of the water inlet pipe 105 and the drain pipe 106. The water inlet pipe 105 and the drain pipe 106 are respectively fixed in the fixing hole 201. A support frame 202 is symmetrically fixed at the bottom of the support plate 2, and the water inlet pipe 105 and the drain pipe 106 are both arranged between the two support frames 202. The support plate 2 fixes the water inlet pipe 105 and the drain pipe 106 through the fixing hole 201. When the support frame 202 is working, it provides installation function for the support plate 2 in the installation position, and installs the water tank 1 in the external installation position.

[0031] Furthermore, a float 304 is fixed to the bottom end of the lifting rod 303, and the bottom end of the control rod 4 is fixed to the top of the support plate 2 on the outside of the water tank 1. The lifting rod 303 is set in the water tank 1 through the float 304. Under the buoyancy of the boiler water in the water tank 1, the lifting rod 303 is set at the corresponding height on the water tank 1.

[0032] The operation process of this embodiment is as follows: During operation, when the boiler needs to be replenished with water, the water pump 107 is started. The output end of the water pump 107 is connected to the pipeline for replenishing the boiler water. After the water pump 107 is started, the water in the water tank 1 enters the drain pipe 106 and is pumped to the pipeline for replenishing the boiler water through the water pump 107. The water level in the water tank 1 drops, causing the float 304 to drop in height in the water tank 1. This causes the connecting bar 3 and the pressure rod 301 connected to the lifting rod 303 to descend. After the pressure rod 301 descends, it presses against the timer switch 402 in the cavity 401, which then... When the timer switch 402 is pressed down, the solenoid valve 108 is opened. At this time, the water inlet pipe 105 delivers water to the water tank 1 to replenish the water tank 1. As the water level in the water tank 1 rises, the float 304 rises. The pressure rod 301 moves away from the timer switch 402, and the timer switch 402 controls the solenoid valve 108 to close at regular intervals, replenishing the water tank 1 with a fixed amount of water. The counterweight block 302 provides weight for the float 304, so that the float 304 is suspended in the water in the water tank 1, preventing the water in the water tank 1 from being drained, ensuring that there is always water in the water tank 1, and ensuring the supply of water to the boiler.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A boiler feed water apparatus comprising a water tank (1), a support disc (2), a connecting strip (3) and a control lever (4), characterized in that: The top end of the water tank (1) is fixedly connected with a ventilation pipe (101), the inner wall upper portion of the ventilation pipe (101) is fixedly connected with a filter core (102), the bottom end of the water tank (1) is fixedly connected with a supporting disc (2), the top end of the water tank (1) on one side of the ventilation pipe (101) is vertically inserted with a lifting rod (303), the circumferential side upper portion of the lifting rod (303) is fixedly connected with a connecting strip (3), the bottom portion of the connecting strip (3) is fixedly connected with a pressing rod (301) away from the edge of the lifting rod (303), the outer side of the pressing rod (301) is movably connected with a control rod (4), the top end of the control rod (4) is fixedly connected with a counterweight (302), the control rod (4) is internally provided with a cavity (401), and the bottom surface of the cavity (401) is fixedly connected with a timing switch (402), the pressing rod (301) penetrates through the top end of the control rod (4) and extends into the cavity (401).

2. A boiler feed water apparatus according to claim 1, characterised in that: The top end of the ventilation pipe (101) is flush with the top end of the filter core (102), the upper portion of the ventilation pipe (101) is provided with a waterproof cover (104), the bottom end of the waterproof cover (104) is annularly fixedly connected with a fixed rod (103), and the bottom end of the fixed rod (103) is fixedly connected with the top portion of the water tank (1).

3. A boiler feed water apparatus according to claim 1, wherein: The bottom portion of the water tank (1) is fixedly connected with a water inlet pipe (105) and a water outlet pipe (106), and the water inlet pipe (105) and the water outlet pipe (106) are symmetrically arranged at the bottom portion of the water tank (1).

4. A boiler feed water apparatus according to claim 3, characterised in that: The circumferential side of the water inlet pipe (105) is fixedly connected with an electric control valve (108), the lower portion of the water outlet pipe (106) is provided with a water pump (107), and the input end of the water pump (107) is fixedly connected with the bottom end of the water outlet pipe (106).

5. A boiler feed water apparatus according to claim 4, characterised in that: The supporting disc (2) is vertically and penetratively provided with a fixed hole (201) corresponding to the positions of the water inlet pipe (105) and the water outlet pipe (106), the water inlet pipe (105) and the water outlet pipe (106) are respectively fixedly connected in the fixed hole (201), the bottom portion of the supporting disc (2) is symmetrically fixedly connected with a supporting frame (202), and the water inlet pipe (105) and the water outlet pipe (106) are arranged between the two supporting frames (202).

6. A boiler feed water apparatus as defined in claim 1, wherein: The bottom end of the lifting rod (303) is fixedly connected with a floating block (304), and the bottom end of the control rod (4) is fixedly connected with the top end of the supporting disc (2) outside the water tank (1).

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