A regulating valve for power plant thermal automation control

Abstract

The utility model discloses a regulating valve for power plant thermal automation control, including the connecting pipe, two connecting flanges are fixedly connected to the both ends of connecting pipe, two connecting flanges are fixedly connected with electric regulating valve, manual valve respectively, the recess is established in the inner surface of connecting pipe, the recess is provided with the mounting bracket, the mounting bracket one end is fixedly connected with the filter screen, and the cleaning assembly is provided in mounting bracket middle part. The utility model discloses setting up the cleaning assembly that is driven by fluid fan blade, connecting rod and scraper, realized the sustained, automatic scraping cleaning of filter screen, effectively prevented the impurity accumulation on the filter screen surface, guaranteed the unobstructed of fluid passage, when needing depth cleaning or replacing filter screen, only need to close the valve, open the first sealing cover of top, can easily take out the whole mounting bracket through the handle, and the second sealing cover of bottom can be used for discharging pipe inside residual impurity and fluid, simplified the maintenance process.

Description

Technical Field

[0001] This utility model relates to the field of regulating valve technology, specifically a regulating valve for thermal automation control in power plants. Background Technology

[0002] In the thermal automation control of power plants, regulating valves are key actuators for controlling fluid flow, pressure, and temperature. Their reliability, ease of maintenance, and environmental adaptability directly affect the safe and stable operation of the entire unit.

[0003] Fluid media often contain solid impurities. In order to filter these impurities, it is usually necessary to install a separate filter before the control valve. This increases the complexity of the system and the space occupied. Traditional filters cannot clean the filter screen and need to be cleaned regularly, otherwise it will easily lead to pipe blockage. Summary of the Invention

[0004] The purpose of this invention is to provide a regulating valve for the thermal automation control of power plants, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a regulating valve for thermal automation control in power plants, comprising a connecting pipe, two connecting flanges fixedly connected to both ends of the connecting pipe, an electric regulating valve and a manual valve respectively fixedly connected to the two connecting flanges, a groove being formed on the inner surface of the connecting pipe, a mounting bracket being provided inside the groove, a filter screen being fixedly connected to one end of the mounting bracket, and a cleaning component being provided in the middle of the mounting bracket.

[0006] Preferably, the cleaning assembly includes two support frames, a connecting rod, a fan blade, and a scraper. The two support frames are fixedly connected to the inner side wall of the mounting frame. The connecting rod is rotatably connected to the middle of the two support frames. The fan blade is fixedly connected to one end of the connecting rod. The scraper is fixedly connected to the other end of the connecting rod and abuts against the filter screen.

[0007] Preferably, a flow sensor is threadedly connected to one end of the connecting pipe.

[0008] Preferably, the top surface of the connecting pipe is threaded with a first sealing cap, and the bottom surface of the connecting pipe is threaded with a second sealing cap.

[0009] Preferably, a handle is fixedly connected to the center of the top surface of the mounting bracket.

[0010] Preferably, a control panel is fixedly connected to the front side of the connecting pipe.

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

[0012] This invention achieves continuous and automatic scraping and cleaning of the filter screen by setting up a cleaning assembly consisting of a fluid-driven fan blade, a connecting rod, and a scraper. This effectively prevents impurities from accumulating on the filter screen surface and ensures unobstructed fluid channels. When deep cleaning or filter screen replacement is required, simply close the valve, open the first sealing cover at the top, and the entire mounting bracket can be easily removed using the handle. The second sealing cover at the bottom can be used to discharge residual impurities and fluid from the drain pipe, simplifying the maintenance process and shortening repair time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial structural schematic diagram of the present invention;

[0015] Figure 3 This is a cross-sectional view of the connecting pipe of this utility model;

[0016] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model.

[0017] In the diagram: 1. Connecting pipe; 2. Connecting flange; 3. Electric regulating valve; 4. Manual valve; 5. Mounting bracket; 6. Filter screen; 7. Cleaning assembly; 71. Support frame; 72. Connecting rod; 73. Fan blade; 74. Scraper; 8. Flow sensor; 9. First sealing cover; 10. Second sealing cover; 11. Handle; 12. Control panel. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a regulating valve for power plant thermal automation control, including a connecting pipe 1, two connecting flanges 2 welded to both ends of the connecting pipe 1, an electric regulating valve 3 and a manual valve 4 respectively installed on the two connecting flanges 2 by bolts, a groove is opened on the inner surface of the connecting pipe 1, a mounting bracket 5 is installed inside the groove, a filter screen 6 is installed on one end of the mounting bracket 5 by bolts, and a cleaning component 7 is installed in the middle of the mounting bracket 5.

[0020] The cleaning component 7 includes two support frames 71, a connecting rod 72, a fan blade 73, and a scraper 74. The two support frames 71 are bolted to the inner wall of the mounting frame 5. The connecting rod 72 is rotatably connected to the middle of the two support frames 71. The fan blade 73 is threaded to one end of the connecting rod 72. The scraper 74 is threaded to the other end of the connecting rod 72 and abuts against the filter screen 6.

[0021] A flow sensor 8 is threadedly connected to one end of the connecting pipe 1.

[0022] A first sealing cap 9 is threaded to the top surface of the connecting pipe 1, and a second sealing cap 10 is threaded to the bottom surface of the connecting pipe 1. A sealing ring is installed between the first sealing cap 9, the second sealing cap 10 and the connecting pipe 1.

[0023] The handle 11 is installed in the middle of the top surface of the mounting bracket 5 by bolts.

[0024] The control panel 12 is mounted on the front side of the connecting pipe 1 by bolts. The control panel 12 has a built-in battery and buzzer. The control panel 12 integrates switches and programmable controllers that are used in conjunction with various electronic devices. It is electrically connected to each electronic device through wires and is powered by an external power supply. Each switch can be operated to control the opening and closing of each electronic device. The above-mentioned electronic devices are all existing technologies, and their specific structures, working principles and electrical connections are not described in detail here.

[0025] Working principle: When in use, the electric regulating valve 3 and the manual valve 4 are connected to the pipeline. Impurities in the fluid in the pipeline are filtered through the filter screen 6. Driven by the fluid, the fan blade 73 rotates, thereby driving the connecting rod 72 to rotate, causing the scraper 74 to scrape off the impurities on the surface of the filter screen 6, preventing impurities from accumulating on the surface of the filter screen 6. When the flow sensor 8 detects that the flow rate has dropped to a certain range, it transmits a signal to the control panel 12. The control panel 12 activates the internal buzzer to sound an alarm, reminding the staff to clean the impurities, close the electric regulating valve 3 and the manual valve 4, open the first sealing cover 9 and the second sealing cover 10, remove the mounting bracket 5 from the inside of the connecting pipe 1, clean the filter screen 6, and flush the impurities inside the connecting pipe through the bottom outlet of the connecting rod 1. After cleaning, the mounting bracket 5 is reinserted into the connecting pipe 1, and the first sealing cover 9 and the second sealing cover 10 are tightened to resume operation. The entire process does not require disassembling the pipeline. This utility model has the advantages of being convenient to use and having good performance.

[0026] 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.

[0027] 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 regulating valve for thermal automation control in power plants, comprising a connecting pipe (1), characterized in that: The connecting pipe (1) has two connecting flanges (2) fixedly connected at both ends. The two connecting flanges (2) are respectively fixedly connected to an electric regulating valve (3) and a manual valve (4). The inner surface of the connecting pipe (1) has a groove. The groove is provided with a mounting bracket (5). One end of the mounting bracket (5) is fixedly connected to a filter screen (6). The middle of the mounting bracket (5) is provided with a cleaning component (7).

2. The regulating valve for power plant thermal automation control according to claim 1, characterized in that: The cleaning assembly (7) includes two support frames (71), a connecting rod (72), a fan blade (73), and a scraper (74). The two support frames (71) are fixedly connected to the inner wall of the mounting frame (5). The connecting rod (72) is rotatably connected to the middle of the two support frames (71). The fan blade (73) is fixedly connected to one end of the connecting rod (72). The scraper (74) is fixedly connected to the other end of the connecting rod (72). The scraper (74) abuts against the filter screen (6).

3. A regulating valve for power plant thermal automation control according to claim 1, characterized in that: A flow sensor (8) is threadedly connected to one end of the connecting pipe (1).

4. A regulating valve for power plant thermal automation control according to claim 1, characterized in that: The top surface of the connecting pipe (1) is threaded with a first sealing cap (9), and the bottom surface of the connecting pipe (1) is threaded with a second sealing cap (10).

5. A regulating valve for power plant thermal automation control according to claim 1, characterized in that: The mounting bracket (5) has a handle (11) fixedly connected to the middle of its top surface.

6. A regulating valve for power plant thermal automation control according to claim 1, characterized in that: The control panel (12) is fixedly connected to the front side of the connecting pipe (1).

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