Thermal power plant boiler pressure detection device

By introducing a detection alarm mechanism and cleaning mechanism of mechanical structure into the boiler pressure detection device of thermal power plant, the problem of damage to electronic devices in high-pressure environments is solved, safety reminders and equipment cleaning is achieved, fire and explosion risks are avoided, and the risk of fire and explosion is ensured. Stable operation of the boiler.

CN222164755UActive Publication Date: 2024-12-13SHAANXI SHANGLUO POWER GENERATION CO LTD
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Patent Information

Application Number
CN202420731851.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-10
Publication Date
2024-12-13
Estimated Expiration
2034-04-10

AI Technical Summary

Technical Problem

The electronic pressure detection device of boilers in thermal power plants is prone to damage or rupture of pipelines and sensors in high-pressure environments, resulting in failure of monitoring systems and increasing the safety risks of fire and explosion.

Method used

A thermal power plant boiler pressure detection device consisting of detecting alarm mechanism and cleaning mechanism is designed. The pressurized power switch and alarm are pushed at high pressure through the mechanical structure of U-shaped liquid pipe and mobile piston, reducing pressure, and driving the scraper through the motor. Clean the smoke exhaust pipe to avoid impurities.

Benefits of technology

It effectively avoids the risk of explosion or explosion caused by high pressure, ensures the stable operation of the boiler, promptly reminds staff and reduces equipment damage, and improves safety and operation efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222164755U_ABST
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Abstract

The utility model relates to the technical field of pressure detection, and discloses a thermal power plant boiler pressure detection device which comprises a fixing support, a thermal power plant boiler body is arranged at the top end of the fixing support, and a detection alarm mechanism is arranged on the front face of the thermal power plant boiler body. When the pressure of water vapor in the boiler body of the thermal power plant is too large, the pressure of the water vapor is transmitted into the U-shaped liquid pipe along the branch pipe, liquid in the U-shaped liquid pipe is extruded by the pressure, so that the movable piston at one end of the U-shaped liquid pipe is pushed to ascend, and in the ascending process of the movable piston, the pressing type power switch on one side is firstly extruded; the pressing type power switch is started to control the first motor to open the pressure release valve, the pressure of the conveying pipe can be reduced, if the pressure in the conveying pipe still rises, the movable piston continues to be pushed by liquid in the U-shaped liquid pipe, and therefore the trigger rod extrudes the pressing type alarm. And a worker can be reminded of excessive pressure in the boiler body of the thermal power plant in time.
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Description

Technical Field

[0001] The utility model relates to the technical field of pressure detection, in particular to a pressure detection device for a boiler in a thermal power plant. Background Art

[0002] The boiler pressure detection device of a thermal power plant is usually used to monitor the internal pressure of the boiler. In a thermal power plant, the boiler is a device that burns fuel to generate heat energy and then heats water into steam. In order to ensure the safety and efficiency of the boiler operation, it is necessary to monitor the pressure inside the boiler in real time.

[0003] According to the Chinese patent authorization announcement: CN 216953007U, a boiler pressure detection device is disclosed, which includes a mounting base, a mounting threaded pipe is connected to the middle of the lower end surface of the mounting base, a connecting pipe is slidably connected to the inner cavity of the mounting base, a dial is fixedly connected to one end of the connecting pipe, a detection mechanism is arranged in the inner cavity of the dial, and a shielding mechanism is arranged in the inner cavity of the mounting base. The utility model relates to the technical field of boiler pressure detection. The boiler pressure detection device solves the problem that the existing boiler pressure detection device is inconvenient to automatically alarm when the boiler pressure increases and debris is easy to fall into the boiler from the hole when the device is disassembled and repaired. However, there are still some problems with the detection device. The detection device of some thermal power plant boilers is usually electronic. When the pressure inside the boiler room of the power plant is too high, the high pressure may cause damage or rupture of equipment such as pipelines and sensors, making the entire system ineffective. The sensor is easily damaged when dealing with excessive pressure. If the sensor is damaged or ruptured, it may cause the monitoring system to fail to work normally, thereby affecting the monitoring and control of the boiler operation status, which may increase safety risks such as fire and explosion. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a thermal power plant boiler pressure detection device, which solves the problem that the detection devices of some thermal power plant boilers are usually electronic. When the pressure inside the power plant boiler room is too high, the high pressure may cause damage or rupture of equipment such as pipelines and sensors.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a thermal power plant boiler pressure detection device, comprising a fixed bracket, a thermal power plant boiler body is arranged on the top of the fixed bracket, a detection alarm mechanism is arranged on the front of the thermal power plant boiler body, the detection alarm mechanism comprises a mounting plate, a push-type alarm, a power switch, a movable piston, a motor, a pressure relief valve and a U-shaped liquid pipe, one end of the U-shaped liquid pipe is connected with a branch pipe by clamping, the other end of the U-shaped liquid pipe is vertically slidably connected with a movable piston on the inner wall, the top of the movable piston is fixedly connected with a trigger rod, the top of the trigger rod is provided with a push-type alarm, one side of the trigger rod is provided with a push-type power switch, the front of the thermal power plant boiler body is fixedly connected with a transmission pipe, and the middle of the transmission pipe is provided with a pressure relief valve;

[0006] A cleaning mechanism is provided on the top of the boiler body of the thermal power plant, and the cleaning mechanism includes a smoke exhaust pipe, a rain shield, a scraper, a connecting plate, a limit rod, a movable support, a screw and a second motor. The bottom end of the rain shield is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the screw, the middle part of the screw is threadedly connected to the movable support, the side wall of the movable support is fixedly connected to a plurality of connecting plates, and one end of each of the plurality of connecting plates is fixedly connected to a scraper.

[0007] Preferably, the back side of the U-shaped liquid pipe is fixedly connected to the front side of the mounting plate, and the front side of the mounting plate is fixedly connected with a scale plate.

[0008] Preferably, the push-type alarm is fixedly connected to one side of the front side of the mounting plate, and the back side of the push-type power switch is fixedly connected to the middle part of the front side of the mounting plate.

[0009] Preferably, the top of the motor 1 is fixedly connected to the front side of the fixed bracket, the output end of the motor 1 is fixedly connected to the top of the pressure relief valve, and the motor 1 is electrically connected to the push-type power switch.

[0010] Preferably, a pressure tester is provided on the front of the boiler body of the thermal power plant, and one end of the branch pipe is fixedly connected to the transmission pipe.

[0011] Preferably, a top end of the smoke exhaust pipe is fixedly connected to a plurality of support rods, and a bottom end of the rain shield is fixedly connected to the top ends of the plurality of support rods.

[0012] Preferably, the plurality of scrapers are all attached to the inner wall of the smoke exhaust pipe.

[0013] Preferably, the middle portion of the movable support is slidably connected to a limit rod, and the top end of the limit rod is fixedly connected to the bottom end of the rain shield.

[0014] Beneficial Effects

[0015] The utility model provides a boiler pressure detection device for a thermal power plant. Compared with the prior art, it has the following beneficial effects:

[0016] 1. In the utility model, through the detection alarm mechanism, when the water vapor pressure inside the boiler body of the thermal power plant is too high, the water vapor pressure is transmitted to the U-shaped liquid pipe along the branch pipe, and the liquid inside the U-shaped liquid pipe is squeezed by the pressure, thereby pushing the moving piston at one end of the U-shaped liquid pipe to rise. In the process of the moving piston rising, the push-type power switch on one side is first squeezed, and the push-type power switch is started to control the motor to open the pressure relief valve, which can reduce the pressure in the transmission pipe. If the pressure inside the transmission pipe is still rising, the moving piston is continued to be pushed by the liquid in the U-shaped liquid pipe, so that the trigger rod squeezes the push-type alarm, which can timely remind the staff that the pressure inside the boiler body of the thermal power plant is too high, so as to avoid the explosion or burst caused by the excessive pressure inside the boiler body of the thermal power plant, causing serious personal injury and equipment damage.

[0017] 2. In the utility model, through the cleaning mechanism, when the smoke exhaust pipe needs to be cleaned, the staff starts the motor 2, and the output end of the motor 2 drives the screw to rotate, so that the screw drives the movable support together with multiple connecting plates and multiple scrapers to rise and fall. As the scraper rises and falls, the scraper can scrape off the impurities on the inner wall of the exhaust pipe to prevent these impurities from affecting the smoke exhaust effect of the smoke exhaust pipe, thereby ensuring the stable operation of the boiler body of the thermal power plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of a thermal power plant boiler pressure detection device proposed by the utility model;

[0019] Figure 2 This is a structural schematic diagram of a cleaning mechanism part of a thermal power plant boiler pressure detection device proposed by the utility model;

[0020] Figure 3 This is a structural schematic diagram of a detection alarm mechanism of a thermal power plant boiler pressure detection device proposed by the utility model;

[0021] Figure 4 A thermal power plant boiler pressure detection device proposed by the utility model Figure 1 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Fixed bracket; 2. Cleaning mechanism; 201. Smoke exhaust pipe; 202. Support rod; 203. Rain shield; 204. Scraper; 205. Connecting plate; 206. Limit rod; 207. Moving support; 208. Screw rod; 209. Motor 2; 3. Detection alarm mechanism; 301. Mounting plate; 302. Push-type alarm; 303. Scale plate; 304. Push-type power switch; 305. Moving piston; 306. Trigger rod; 307. Motor 1; 308. Pressure relief valve; 309. U-shaped liquid pipe; 4. Branch pipe; 5. Pressure tester; 6. Boiler body of thermal power plant; 7. Transmission pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 - Figure 4 The utility model provides two technical solutions, which specifically include the following embodiments:

[0026] Embodiment 1:

[0027] A thermal power plant boiler pressure detection device comprises a fixed bracket 1, a thermal power plant boiler body 6 is arranged on the top of the fixed bracket 1, a detection alarm mechanism 3 is arranged on the front of the thermal power plant boiler body 6, the detection alarm mechanism 3 comprises a mounting plate 301, a push-type alarm 302, a power switch, a movable piston 305, a motor 307, a pressure relief valve 308 and a U-shaped liquid pipe 309, one end of the U-shaped liquid pipe 309 is connected with a branch pipe 4 by clamping, the other end of the U-shaped liquid pipe 309 is vertically slidably connected with the movable piston 305 on the inner wall, the friction force at the connection between the movable piston 305 and the U-shaped liquid pipe 309 is small, the top of the movable piston 305 is fixedly connected with a trigger rod 306, the top of the trigger rod 306 is provided with a push-type alarm 302, the specific model of the push-type alarm 302 is Honeywell 5821, and one side of the trigger rod 306 is provided with a push-type power switch 304, the specific model of the push-type power switch 304 is Leviton1865-W 15Amp, the front of the thermal power plant boiler body 6 is fixedly connected with a transmission pipe 7, and a pressure relief valve 308 is installed in the middle of the transmission pipe 7. The pressure relief valve 308 can reduce the pressure inside the transmission pipe 7. The back of the U-shaped liquid pipe 309 is fixedly connected to the front of the mounting plate 301. The interior of the U-shaped liquid pipe 309 is filled with brightly colored liquid, and the current pressure inside the transmission pipe 7 can be displayed in conjunction with the scale plate 303. The front of the mounting plate 301 is fixedly connected with a scale plate 303. The push-type alarm 302 is fixedly connected to one side of the front of the mounting plate 301. The back of the push-type power switch 304 is fixedly connected to the middle of the front of the mounting plate 301. The top of the motor 307 is fixedly connected to the front of the fixed bracket 1. The output end of the motor 307 is fixedly connected to the top of the pressure relief valve 308. The motor 307 is electrically connected to the push-type power switch 304. A pressure tester 5 is set on the front of the thermal power plant boiler body 6. The specific model of the pressure tester 5 is Omega PX409, the pressure tester 5 is used to monitor the pressure of the boiler body 6 of the thermal power plant at ordinary times, and one end of the branch pipe 4 is fixedly connected to the transmission pipe 7.

[0028] During operation, when the water vapor pressure inside the boiler body 6 of the thermal power plant is too high, the water vapor pressure inside the transmission pipe 7 is too high, and then it is transmitted to the branch pipe 4. The pressure of the water vapor is transmitted to the U-shaped liquid pipe 309 along the branch pipe 4. The liquid inside the U-shaped liquid pipe 309 is squeezed by the pressure, thereby pushing the movable piston 305 at one end of the U-shaped liquid pipe 309 to rise. In the process of the movable piston 305 rising, the push-type power switch 304 on one side is first squeezed. The push-type power switch 304 is started to control the motor 1 307 to open the pressure relief valve 308, which can reduce the pressure in the transmission pipe 7. If the pressure inside the transmission pipe 7 is still rising, the movable piston 305 is continued to be pushed by the liquid in the U-shaped liquid pipe 309, so that the trigger rod 306 squeezes the push-type alarm 302, which can timely remind the staff that the pressure inside the boiler body 6 of the thermal power plant is too high, so as to avoid the explosion or burst caused by the excessive pressure inside the boiler body 6 of the thermal power plant, causing serious personal injury and equipment damage.

[0029] Embodiment 2:

[0030] On the basis of the first embodiment, a cleaning mechanism 2 is provided on the top of the boiler body 6 of the thermal power plant, and the cleaning mechanism 2 includes a smoke exhaust pipe 201, a rain shield 203, a scraper 204, a connecting plate 205, a limit rod 206, a movable support 207, a screw 208 and a motor 209. The bottom end of the rain shield 203 is fixedly connected to the motor 209, the output end of the motor 209 is fixedly connected to the screw 208, the middle part of the screw 208 is threadedly connected to the movable support 207, and the side wall of the movable support 207 is fixedly connected to multiple connecting plates 205, multiple One end of the connecting plate 205 is fixedly connected with a scraper 204, which is made of stainless steel and has corrosion resistance. The top of the smoke exhaust pipe 201 is fixedly connected with multiple support rods 202, and the bottom end of the rain shield 203 is fixedly connected to the top of the multiple support rods 202. The multiple scrapers 204 are all attached to the inner wall of the smoke exhaust pipe 201. The middle part of the movable support 207 is slidably connected with a limit rod 206, which can limit the sliding of the movable support 207, and the top of the limit rod 206 is fixedly connected to the bottom end of the rain shield 203.

[0031] When the smoke exhaust pipe 201 needs to be cleaned, the staff starts the motor 209, and the output end of the motor 209 drives the screw 208 to rotate, so that the screw 208 drives the movable support 207 together with multiple connecting plates 205 and multiple scrapers 204 to rise and fall. As the scraper 204 rises and falls, the scraper 204 can scrape off the impurities on the inner wall of the exhaust pipe to prevent these impurities from affecting the smoke exhaust effect of the smoke exhaust pipe 201, thereby ensuring the stable operation of the boiler body 6 of the thermal power plant.

[0032] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. A boiler pressure detection device for a thermal power plant, comprising a fixing bracket (1), characterized in that: A thermal power plant boiler body (6) is arranged at the top of the fixed support (1), and a detection alarm mechanism (3) is arranged on the front of the thermal power plant boiler body (6). The detection alarm mechanism (3) comprises a mounting plate (301), a push-type alarm (302), a power switch, a movable piston (305), a motor (307), a pressure relief valve (308) and a U-shaped liquid pipe (309). One end of the U-shaped liquid pipe (309) is connected to a branch pipe (4) by a snap-fit ​​connection. A movable piston (305) is vertically slidably connected to the inner wall of the other end of the tube (309); a trigger rod (306) is fixedly connected to the top of the movable piston (305); a push-type alarm (302) is provided on the top of the trigger rod (306); a push-type power switch (304) is provided on one side of the trigger rod (306); a transmission pipe (7) is fixedly connected to the front of the boiler body (6) of the thermal power plant; a pressure relief valve (308) is installed in the middle of the transmission pipe (7); A cleaning mechanism (2) is provided on the top of the thermal power plant boiler body (6), and the cleaning mechanism (2) comprises a smoke exhaust pipe (201), a rain shield (203), a scraper (204), a connecting plate (205), a limit rod (206), a movable support (207), a screw (208) and a second motor (209), wherein the bottom end of the rain shield (203) is fixedly connected to the second motor (209), the output end of the second motor (209) is fixedly connected to the screw (208), the middle part of the screw (208) is threadedly connected to the movable support (207), the side wall of the movable support (207) is fixedly connected to a plurality of connecting plates (205), and one end of each of the plurality of connecting plates (205) is fixedly connected to the scraper (204).

2. A thermal power plant boiler pressure detection device according to claim 1, characterized in that: The back side of the U-shaped liquid pipe (309) is fixedly connected to the front side of the mounting plate (301), and the front side of the mounting plate (301) is fixedly connected to a scale plate (303).

3. A thermal power plant boiler pressure detection device according to claim 1, characterized in that: The push-type alarm (302) is fixedly connected to one side of the front of the mounting plate (301), and the back of the push-type power switch (304) is fixedly connected to the middle of the front of the mounting plate (301).

4. A thermal power plant boiler pressure detection device according to claim 1, characterized in that: The top end of the motor 1 (307) is fixedly connected to the front side of the fixed bracket (1), the output end of the motor 1 (307) is fixedly connected to the top end of the pressure relief valve (308), and the motor 1 (307) is electrically connected to the push-type power switch (304).

5. A thermal power plant boiler pressure detection device according to claim 1, characterized in that: A pressure tester (5) is provided on the front of the thermal power plant boiler body (6), and one end of the branch pipe (4) is fixedly connected to the transmission pipe (7).

6. A thermal power plant boiler pressure detection device according to claim 1, characterized in that: The top end of the smoke exhaust pipe (201) is fixedly connected to a plurality of support rods (202), and the bottom end of the rain shield (203) is fixedly connected to the top ends of the plurality of support rods (202).

7. A thermal power plant boiler pressure detection device according to claim 1, characterized in that: The plurality of scrapers (204) are all attached to the inner wall of the smoke exhaust pipe (201).

8. A thermal power plant boiler pressure detection device according to claim 1, characterized in that: The middle part of the movable support (207) is slidably connected to a limit rod (206), and the top end of the limit rod (206) is fixedly connected to the bottom end of the rain shield (203).