A boiler air and flue gas system instrument pipeline timed purging device

Abstract

The utility model relates to purging device technical field, and disclose a kind of boiler air and flue gas system instrument pipeline timing purging device, including instrument pipeline shell, its air inlet end is connected filter box, gas pipe and air storage tank in proper order, air storage tank surface is equipped with control panel, and solenoid valve group and timing control module are installed on the gas pipe at air outlet, by solar panel and battery power supply, can accurately set solenoid valve group opening and closing period, make compressed air pulse type enter filter box, avoid energy waste, enhance purging effect.Filter box is equipped with detachable filter plate and filter screen, cooperate sealing along and plug-in interface, can intercept particulate matter, facilitate maintenance.Pulse damper on gas pipe can stabilize airflow pressure, prevent filter screen damage;The one-way valve of filter box gas outlet pipeline ensures airflow one-way flow, cooperate the fan at air outlet, form complete one-way airflow circulation system, reduce pipeline blockage risk, prolong the service life of instrument equipment.

Description

Technical Field

[0001] This utility model relates to the field of purging device technology, specifically a timed purging device for instrument pipelines in a boiler flue gas system. Background Technology

[0002] The instrument pipeline purging device is an anti-clogging device that uses automated technology to perform timed purging. Its core design includes a timer switch, a solenoid valve, and a compressed air system. The device uses a timer switch to control the switching of the solenoid valve, causing compressed air to periodically purge the instrument pipeline, removing accumulated dust and debris to prevent blockages.

[0003] Existing boiler flue gas system instrument pipeline purging devices may suffer from energy waste due to continuous purging, and the impact force of ordinary airflow is insufficient to effectively remove deposits adhering to the inner wall of the pipeline. At the same time, the lack of an effective air filtration structure allows airborne particles to easily enter the pipeline system with the airflow, and the filter components are inconvenient to disassemble, clean, or replace, affecting long-term filtration efficiency. In addition, large pressure fluctuations during airflow transmission can easily damage the filter screen, and there is a possibility of backflow of residual gas or impurities in the pipeline, increasing the risk of pipeline blockage and affecting the service life of instrument equipment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a timed purging device for instrument pipelines in boiler flue gas systems. This device solves the problems mentioned in the background art, such as energy waste caused by continuous purging, insufficient impact force of ordinary airflow making it difficult to effectively remove deposits from the inner walls of pipelines, increased risk of pipeline blockage, and impact on the service life of instrument equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a timed purging device for instrument pipelines in a boiler flue gas system, comprising:

[0006] The instrument piping housing has an air storage tank at its air inlet end, and a control panel is mounted on the surface of the air storage tank.

[0007] An air supply pipe is installed at the air outlet of an air storage tank. A solenoid valve assembly is installed on the surface of the air supply pipe, and a timing control module is installed on the surface of the solenoid valve assembly.

[0008] A solar panel is installed on the surface of an air storage tank, and a battery is mounted on the surface of the solar panel. The battery is connected to a timing control module via wires.

[0009] A filter box is installed at the outlet of the gas supply pipe. The outlet of the filter box is connected to the inlet of the instrument pipeline housing. A filter plate is inserted inside the filter box, and a filter screen is installed on the surface of the filter plate. A pressure monitor is installed at the outlet of the instrument pipeline housing, and a fan is installed at the outlet of the instrument pipeline housing.

[0010] Preferably, the air outlet pipe of the filter box is equipped with a one-way valve, and the surface of the air supply pipe is equipped with a pulse damper. The one-way valve can prevent backflow of the purging gas, and the pulse damper is used to eliminate the impact of compressed air pulsation on the instrument pipeline.

[0011] Preferably, each of the four corners of the solar panel is equipped with a connecting block, and each connecting block is connected to an air storage tank. The connecting blocks are installed on the surface of the air storage tank by bolts.

[0012] Preferably, the outer surface of the filter plate is equipped with a sealing edge, and the surface of the filter box is provided with an insertion interface. The filter plate is inserted into the insertion interface, and the sealing edge can seal the gap between the outside of the filter plate and the filter box.

[0013] Preferably, the filter box is equipped with a slide rail inside, and the filter plate is inserted into the slide rail, so that the filter plate can be stably installed inside the filter box.

[0014] Preferably, threaded rods are screwed to all four corners of the sealing edge surface, and the inner ends of the threaded rods are screwed to the surface of the filter box, so that the filter plate can be installed more stably inside the filter box.

[0015] Compared with the prior art, this utility model provides a timed purging device for instrument pipelines in a boiler flue gas system, which has the following beneficial effects:

[0016] 1. The boiler flue gas system instrument pipeline timed purging device uses an air supply pipe with a solenoid valve group and a timed control module installed at the air outlet of the air storage tank. Powered by a battery powered by a solar panel, the timed control module can accurately set the opening and closing cycle of the solenoid valve group, so that compressed air enters the filter box in pulses at a preset frequency. This avoids energy waste caused by continuous purging and enhances the impact force on the inner wall of the instrument pipeline casing through pulsed airflow, thereby improving the purging effect. The detachable filter plate and filter screen structure inside the filter box, together with the sealing edge and plug-in interface design, effectively intercepts particulate matter in the air before the airflow enters the instrument pipeline casing, preventing impurities from entering the pipeline system with the airflow. At the same time, it is easy to disassemble, clean or replace the filter components regularly, ensuring long-term filtration efficiency.

[0017] 2. The boiler flue gas system's instrument piping timed purging device, with a pulse damper added to the surface of the gas delivery pipe, can absorb pressure fluctuations generated during airflow transmission, keeping the airflow pressure entering the filter box stable and preventing damage to the filter screen due to excessive local stress caused by sudden pressure changes; the one-way valve installed on the filter box's outlet pipe ensures unidirectional airflow, preventing residual gas or impurities in the instrument piping housing from flowing back into the filter box. Together with the fan at the outlet, it accelerates the discharge of gas from the pipe, forming a complete unidirectional airflow circulation system, effectively reducing the risk of pipe blockage and extending the service life of the instrument equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the air storage tank of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the filter box of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the filter plate of this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the filter box of this utility model.

[0023] In the diagram: 1. Instrument piping housing; 2. Air storage tank; 3. Control panel; 4. Air supply pipe; 5. Solenoid valve assembly; 6. Timer control module; 7. Solar panel; 8. Battery; 9. Filter box; 10. Pressure monitor; 11. Fan; 12. Filter plate; 13. Filter screen; 14. Check valve; 15. Pulse damper; 16. Connecting block; 17. Sealing edge; 18. Plug interface; 19. Slide rail; 20. Threaded rod. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a technical solution: a timed purging device for instrument pipelines in a boiler flue gas system. (See also...) Figure 1 It includes an instrument piping housing 1, an air storage tank 2 at the air inlet end of the instrument piping housing 1, and a control panel 3 installed on the surface of the air storage tank 2;

[0026] Air supply pipe 4 is located at the air outlet of air storage tank 2. A solenoid valve assembly 5 is mounted on the surface of air supply pipe 4. Please refer to [link / reference]. Figure 2 A timing control module 6 is mounted on the surface of the solenoid valve assembly 5;

[0027] A solar panel 7 is installed on the surface of an air storage tank 2. A battery 8 is installed on the surface of the solar panel 7. The battery 8 is connected to a timing control module 6 via wires.

[0028] Please see Figure 1 Filter box 9 is located at the outlet of air supply pipe 4. The outlet of filter box 9 is connected to the inlet of instrument pipeline housing 1. Please refer to [link / reference]. Figure 3 The filter box 9 is equipped with a filter plate 12. Please refer to [link / reference]. Figure 4 A filter screen 13 is installed on the surface of the filter plate 12. Please refer to [link / reference]. Figure 1 A pressure monitor 10 is installed at the air outlet of the instrument pipeline housing 1, and a fan 11 is installed at the air outlet of the instrument pipeline housing 1.

[0029] The solenoid valve group 5 consists of at least one two-position three-way solenoid valve. Its air inlet is connected to the air supply module, and its air outlet is connected to the inlet end of the instrument pipeline to be purged through a pipeline.

[0030] The timing control module 6 has a built-in microprocessor and clock chip, presets the purging cycle parameters, and controls the on / off state of the solenoid valve group 5 through a relay or MOSFET drive circuit.

[0031] Pressure monitor 10 includes a pressure sensor and analog-to-digital conversion circuit, which collects the air pressure signal in the pipeline in real time and feeds it back to the timing control module 6.

[0032] By installing an air supply pipe 4 with a solenoid valve assembly 5 and a timer control module 6 at the air outlet of the air storage tank 2, and using a battery 8 powered by a solar panel 7 to provide energy, the timer control module 6 can accurately set the opening and closing cycle of the solenoid valve assembly 5, so that compressed air enters the filter box 9 in a pulse at a preset frequency. This avoids energy waste caused by continuous purging, and enhances the impact force on the inner wall of the instrument pipeline housing 1 by the pulse airflow, thereby improving the purging effect. The detachable filter plate 12 and filter screen 13 structure in the filter box 9, together with the plug-in design of the sealing edge 17 and the plug interface 18, effectively intercepts particulate matter in the air before the airflow enters the instrument pipeline housing 1, preventing impurities from entering the pipeline system with the airflow. At the same time, it is convenient to disassemble, clean or replace the filter components regularly to ensure long-term filtration efficiency.

[0033] The pulse damper 15 added to the surface of the gas pipe 4 can absorb the pressure fluctuations generated during the airflow transmission process, so as to keep the airflow pressure entering the filter box 9 stable and avoid damage to the filter screen 13 due to excessive local stress caused by sudden pressure changes. The one-way valve 14 installed in the air outlet pipe of the filter box 9 ensures that the airflow flows in one direction and prevents residual gas or impurities in the instrument pipe housing 1 from flowing back into the filter box 9. Together with the fan 11 at the air outlet, it accelerates the discharge of gas in the pipe and forms a complete one-way airflow circulation system, which effectively reduces the risk of pipe blockage and extends the service life of the instrument equipment.

[0034] The outlet pipe of filter box 9 is equipped with a one-way valve 14. Please refer to [link / reference]. Figure 2 A pulse damper 15 is installed on the surface of the gas supply pipe 4. The backflow of purging gas can be prevented by the one-way valve 14. The pulse damper 15 is used to eliminate the impact of compressed air pulsation on the instrument pipeline.

[0035] Connecting blocks 16 are installed at the four corners of the surface of the solar panel 7. The connecting blocks 16 are connected to the air storage tank 2 and are installed on the surface of the air storage tank 2 by bolts.

[0036] Please see Figure 4 The outer surface of the filter plate 12 is fitted with a sealing edge 17. Please refer to [link / reference]. Figure 5 The filter box 9 has an insertion interface 18 on its surface. The filter plate 12 is inserted into the insertion interface 18. The gap between the filter plate 12 and the filter box 9 can be sealed by the sealing edge 17.

[0037] The filter box 9 is equipped with a slide rail 19, and the filter plate 12 is inserted into the slide rail 19, so that the filter plate 12 can be stably installed inside the filter box 9.

[0038] Please see Figure 4 Threaded rods 20 are screwed onto the four corners of the sealing edge 17. The inner ends of the threaded rods 20 are screwed onto the surface of the filter box 9, so that the filter plate 12 can be installed more stably inside the filter box 9.

[0039] In operation: The solar panel 7 is fixed to the surface of the air storage tank 2 via the connecting block 16 and bolts, converting solar energy into electrical energy stored in the battery 8. The battery 8 supplies power to the timing control module 6. The timing control module 6 has a built-in microprocessor and clock chip. According to the preset purging cycle parameters, it controls the opening and closing of the solenoid valve group 5 through a relay or MOSFET drive circuit. The solenoid valve group 5 causes compressed air to enter through the air supply pipe 4 in pulses at a preset frequency. The pulse damper 15 on the air supply pipe 4 absorbs airflow pressure fluctuations, allowing the air entering the filter box 9 to pass through smoothly. The airflow is stable; inside the filter box 9, the filter plate 12 is inserted into the connector 18 and the slide rail 19, the sealing line 17 seals the gap, and the threaded rod 20 is screwed on to make the filter plate 12 stable. The filter screen 13 intercepts particulate matter in the air; the filtered airflow enters the air inlet of the instrument pipeline housing 1 through the one-way valve 14 to purge the deposits on the inner wall of the pipeline. The pressure monitor 10 collects the air pressure signal in the pipeline in real time and feeds it back to the timing control module 6; finally, the fan 11 accelerates the gas in the pipeline to be discharged from the air outlet of the instrument pipeline housing 1, forming a complete one-way airflow cycle.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] 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 timed purging device for instrument piping in a boiler flue gas system, characterized in that, include: Instrument pipe housing (1), the air inlet end of the instrument pipe housing (1) is provided with an air storage tank (2), and the surface of the air storage tank (2) is equipped with a control panel (3); An air supply pipe (4) is provided at the air outlet of the air storage tank (2). A solenoid valve assembly (5) is installed on the surface of the air supply pipe (4). A timing control module (6) is installed on the surface of the solenoid valve assembly (5). A solar panel (7) is disposed on the surface of an air storage tank (2), and a battery (8) is installed on the surface of the solar panel (7). The battery (8) is connected to a timing control module (6) via wires. A filter box (9) is installed at the outlet of the gas supply pipe (4). The outlet of the filter box (9) is connected to the inlet of the instrument pipeline housing (1). A filter plate (12) is inserted inside the filter box (9). A filter screen (13) is installed on the surface of the filter plate (12). A pressure monitor (10) is installed at the outlet of the instrument pipeline housing (1). A fan (11) is installed at the outlet of the instrument pipeline housing (1). The air outlet pipe of the filter box (9) is equipped with a one-way valve (14), and the surface of the air supply pipe (4) is equipped with a pulse damper (15). The outer surface of the filter plate (12) is fitted with a sealing edge (17), and the surface of the filter box (9) is provided with an insertion interface (18), into which the filter plate (12) is inserted.

2. The timed purging device for instrument pipelines of a boiler flue gas system according to claim 1, characterized in that: Connecting blocks (16) are installed at the four corners of the surface of the solar panel (7), and the connecting blocks (16) are all connected to the air storage tank (2).

3. The timed purging device for instrument pipelines of a boiler flue gas system according to claim 1, characterized in that: The filter box (9) is equipped with a slide rail (19), and the filter plate (12) is inserted into the slide rail (19).

4. A timed purging device for instrument pipelines in a boiler flue gas system according to claim 1, characterized in that: Threaded rods (20) are screwed to the four corners of the surface of the sealing edge (17), and the inner ends of the threaded rods (20) are screwed to the surface of the filter box (9).

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