Anti-blocking automatic dredging blowback pressure detection device

Abstract

The utility model relates to the field of instrument detection, in particular to an anti-blocking automatic dredging blowback pressure detection device which is assembled at an outlet of a pressure area of a process pipeline and comprises a blowback pressure detection mechanism, a blowback air source electromagnetic valve, a sealing mechanism, an executing mechanism and a through needle. The outer side of the outlet of the pressure area is connected with the blowback pressure detection mechanism and the blowback air source electromagnetic valve; one end of the through needle is inserted into the pressure area outlet, and the other end of the through needle is connected with the executing mechanism; and a sealing mechanism is arranged at the joint of the through needle and the pressure area outlet. According to the utility model, the blocked outlet of the pressure area of the process pipeline is dredged by utilizing the reciprocating motion of the dredging needle, so that not only is the construction convenient, the maintenance simple and the energy consumption low, but also the outlet of the pressure area can be automatically dredged and automatically blown back in real time, the blockage of the outlet of the pressure area is prevented, and the pressure detection accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the field of instrument detection, in particular to an anti-blocking automatic dredging back-blowing pressure detection device. Background Art

[0002] Pressure measurement in high-temperature, high-humidity dust environments, both domestically and internationally, has faced challenges, such as scaling and clogging the pressure zone outlet. This can lead to inaccurate pressure measurements and consequently production disruptions. In complex industrial environments, accurate and stable pressure measurement is crucial for process control. However, these environments are often accompanied by unfavorable factors such as high dust levels, high temperatures, and high pressures, which can easily lead to clogging and burning of measurement lines, compromising measurement accuracy and equipment performance.

[0003] Traditional pressure detection methods have obvious limitations when faced with dusty and high-temperature environments. For example, measuring devices such as differential pressure flowmeters often have small measuring ports that are easily clogged by dust, resulting in inaccurate or even ineffective measurements. Furthermore, manual purging is not only inefficient and poses significant safety risks, but also presents difficulties in real-time detection and prevention of blockages. Manual cleaning cannot guarantee detection needs. For example, when testing the furnace mouth of a steelmaking converter, inaccurate detection cannot effectively determine the micro-differential pressure at the furnace mouth. To ensure that the furnace mouth does not smoke, increased air intake is usually adopted. However, CO in the flue gas absorbs too much oxygen and burns, resulting in high converter gas temperatures and low calorific value, and even safety accidents such as explosions. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model proposes an anti-blocking automatic dredging back-blowing pressure detection device to ensure the accuracy of pressure detection, improve economic benefits and prevent safety accidents.

[0005] The utility model provides an anti-blocking automatic unblocking back-blowing pressure detection device, comprising: a back-blowing pressure detection mechanism, a back-blowing air source electromagnetic valve, a sealing mechanism, an actuator and a clearing needle;

[0006] The outer side of the pressure zone outlet is connected to the back-blowing pressure detection mechanism and the back-blowing gas source electromagnetic valve;

[0007] One end of the pass needle is inserted into the outlet of the pressure zone, and the other end is connected to the actuator;

[0008] A sealing mechanism is provided at the connection between the pass needle and the pressure zone outlet.

[0009] In some embodiments, the actuator is used to drive the needle to reciprocate.

[0010] In some embodiments, the backflush pressure detection mechanism is used to detect the backflush pressure.

[0011] In some embodiments, the back-blowing gas source solenoid valve is used to introduce gas into the pressure zone outlet, and the back-blowing gas source solenoid valve is connected to the pressure zone outlet through the back-blowing pressure detection mechanism.

[0012] In some embodiments, the introduced gas includes nitrogen or compressed air.

[0013] In some embodiments, the sealing mechanism is sleeved on the inner periphery of the pressure zone outlet and the outer periphery of the guide needle.

[0014] In some embodiments, the length of the pass needle is greater than the length of the pressure zone outlet.

[0015] In some embodiments, the backflush pressure detection mechanism, backflush gas source solenoid valve, actuator, and pass needle are configured to operate individually, sequentially, or staggered during production intervals.

[0016] In some embodiments, the shapes of the pass needle include needle-shaped and rotating brush-shaped.

[0017] In some embodiments, the sealing mechanism is made of rubber.

[0018] The beneficial effects of the utility model are:

[0019] The utility model comprises a back-blowing pressure detection mechanism, a back-blowing gas source electromagnetic valve, a sealing mechanism, an actuator and a pass needle; the back-blowing pressure detection mechanism and the back-blowing gas source electromagnetic valve are connected to the outside of the pressure zone outlet; one end of the pass needle is inserted into the pressure zone outlet, and the other end is connected to the actuator; a sealing mechanism is provided at the connection between the pass needle and the pressure zone outlet.

[0020] The utility model utilizes the reciprocating motion of a cleaning needle to clear the pressure zone outlet of a clogged process pipeline. It is not only convenient to construct, simple to maintain, and has low energy consumption, but also can automatically clear and backflush the pressure zone outlet in real time to prevent the pressure zone outlet from being blocked, thereby ensuring the accuracy of pressure detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To better understand the present invention, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily drawn to scale, and related elements may be omitted, or in some cases, proportions may have been exaggerated to emphasize and clearly illustrate the novel features described herein. Furthermore, as is known in the art, system components may be arranged differently. Furthermore, in the drawings, like reference numerals designate corresponding parts throughout the several views.

[0022] Figure 1 A reference schematic diagram of an anti-clogging automatic dredging backflush pressure detection device of the present invention is shown.

[0023] Explanation of the accompanying symbols: 1. Back-blowing pressure detection mechanism; 2. Back-blowing gas source solenoid valve; 3. Sealing mechanism; 4. Actuator; 5. Pass needle; 6. Pressure zone outlet; 7. Process pipeline. DETAILED DESCRIPTION

[0024] It should be understood that the embodiments of the present invention shown in the exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in the present invention, it is readily apparent to those skilled in the art that various modifications are possible without departing substantially from the teachings of the present invention. Accordingly, all such modifications are intended to be included within the scope of the present invention. Other substitutions, modifications, variations, and deletions may be made to the design, operating conditions, and parameters of the following exemplary embodiments without departing from the spirit of the present invention.

[0025] The utility model provides an anti-blocking automatic dredging back-blowing pressure detection device, please refer to Figure 1 , which can be assembled at the pressure zone outlet 6 of the process pipeline 7 and includes: a backflush pressure detection mechanism 1, a backflush gas source solenoid valve 2, a sealing mechanism 3, an actuator 4, and a pass needle 5. The backflush pressure detection mechanism 1 and the backflush gas source solenoid valve 2 are connected to the outside of the pressure zone outlet 6. One end of the pass needle 5 is inserted into the pressure zone outlet 6, and the other end is connected to the actuator 4. The sealing mechanism 3 is provided at the connection between the pass needle 5 and the pressure zone outlet 6. The free end of the pressure zone outlet 6 receives the pass needle 5, and the other end is connected to the process pipeline 7.

[0026] The utility model utilizes the reciprocating motion of the cleaning needle 5 to clear the pressure zone outlet 6 of the blocked process pipeline 7, which is not only convenient in construction, simple in maintenance and low in energy consumption, but also can automatically clear and backflush the pressure zone outlet 6 in real time to prevent the pressure zone outlet from being blocked and ensure the accuracy of pressure detection.

[0027] In some embodiments, see Figure 1 The actuator 4 is used to push the needle 5 to reciprocate.

[0028] The reciprocating motion of the cleaning needle 5 unclogs the measuring line in real time, effectively preventing the accumulation and blockage of dust, impurities, and other substances. Compared to manual, timed purging, the cleaning needle 5 can clean the measuring line more frequently and accurately, greatly improving dredging efficiency. It also reduces labor intensity and safety risks.

[0029] In some embodiments, see Figure 1 The back-blowing pressure detection mechanism 1 is used to detect the back-blowing pressure.

[0030] The backflush pressure detection mechanism 1 can monitor the pressure generated during the backflush process in real time, ensuring that the backflush airflow has sufficient pressure to effectively remove dust, impurities, etc. that are blocked in the measuring pipeline. By precisely controlling the backflush pressure, the unblocking effect can be optimized, avoiding incomplete unblocking due to insufficient pressure or damage to the equipment due to excessive pressure. During the pressure measurement process, if the measuring pipeline is blocked, the measurement result will be inaccurate. By promptly detecting and clearing the blockage, the backflush pressure detection mechanism 1 can ensure that the measuring pipeline is unobstructed, thereby improving the accuracy of pressure measurement.

[0031] In some embodiments, see Figure 1 The back-blowing gas source solenoid valve 2 is used to introduce gas into the pressure zone outlet, and the back-blowing gas source solenoid valve 2 is connected to the pressure zone outlet 6 through the back-blowing pressure detection mechanism 1.

[0032] The backflush air source solenoid valve 2 quickly and accurately controls the flow of gas directly to the outlet of any pressure zone that may be blocked. This direct action quickly generates a powerful backflush airflow, effectively removing dust and impurities adhering to the pipe wall or outlet, thereby restoring the smooth flow of the pipeline. Maintaining an unobstructed pipeline helps reduce wear and failure rates on measuring components, thereby extending their service life. This is particularly important in production environments that require long-term stable operation.

[0033] In some embodiments, see Figure 1 The gas introduced includes nitrogen or compressed air.

[0034] Nitrogen is an inert gas that is non-flammable, non-combustible, and has excellent oxidation resistance. During the backflush process, nitrogen does not chemically react with substances in the measurement pipeline, thus avoiding potential contamination and corrosion. Nitrogen is chemically stable, with relatively small temperature and pressure fluctuations. This allows nitrogen to maintain a relatively constant gas state during the backflush process, facilitating more precise control and unblocking results. Nitrogen can also be used for cleaning and impurity removal. During the backflush process, nitrogen effectively removes impurities such as dust and grease adhering to the pipeline walls, keeping the pipeline clean and unobstructed.

[0035] Compressed air is a highly reliable power source and is not susceptible to external interference that could lead to inaccurate or malfunctioning measurements. During the backflush process, compressed air provides stable airflow pressure, ensuring consistent and reliable backflush results. Compressed air can be produced and stored using equipment such as compressors, making it relatively easy to obtain and process. Furthermore, compressed air is less susceptible to contamination and fluctuations during transmission and use, offering a high level of safety and stability.

[0036] In some embodiments, see Figure 1 The sealing mechanism 3 is sleeved on the inner periphery of the pressure zone outlet and the outer periphery of the needle 5.

[0037] The sealing mechanism 3 tightly fits around the pressure zone outlet and the outer periphery of the pass needle 5, forming an effective sealing barrier that effectively prevents gas leakage from the interface during the backflush process. This is crucial for maintaining the normal operating pressure of the backflush system and ensuring the backflush effect. This guaranteed seal also means that external impurities are unlikely to enter the system, thereby reducing measurement errors and equipment failures caused by contamination.

[0038] The presence of the sealing mechanism 3 helps maintain a stable operating pressure at the pressure zone outlet 6, preventing pressure fluctuations caused by gas leakage. A stable pressure environment is crucial for ensuring measurement accuracy and proper operation of the device. By reducing gas leakage and contamination, the sealing mechanism 3 helps protect the measuring element and the needle 5 from corrosion and wear, thereby extending the service life of the device.

[0039] In some embodiments, see Figure 1 , the length of the needle 5 is greater than the length of the pressure zone outlet.

[0040] The increased length of the cleaning needle 5 allows it to penetrate deeper into the pressure zone outlet 6 and the internal piping system, effectively removing dust, impurities, and other obstructions adhering to the pipe walls. This deep cleaning capability helps ensure unobstructed piping and improves the dredging effect. The longer cleaning needle 5 also reduces residue left inside the pipe during the dredging process, reducing the risk of re-clogging caused by residue.

[0041] In some embodiments, the backflush pressure detection mechanism 1 , the backflush gas source solenoid valve 2 , the actuator 4 and the pass needle 5 are configured to operate individually, sequentially or staggered during a production interval.

[0042] By performing backflushing and unclogging operations during production breaks, we can ensure that production does not stop suddenly due to pipe blockages. This preventative maintenance reduces production delays and losses caused by downtime. Operating these components individually, sequentially, or in a staggered manner allows for flexible adjustments based on actual production needs and equipment status, optimizing the entire production process and improving production efficiency.

[0043] In some embodiments, see Figure 1 The shapes of the needle 5 include needle shape and rotating brush shape.

[0044] The needle-shaped cleaning needle, with its slender design, can be precisely inserted into narrow or complex pipe structures, effectively removing blockages and ensuring smooth flow. The rotating brush-shaped cleaning needle can more effectively remove attachments and blockages from the inner wall of the pipe through its rotating motion, improving cleaning efficiency.

[0045] In some embodiments, see Figure 1 The sealing mechanism 3 is made of rubber.

[0046] The rubber material has excellent elasticity and can fit tightly to the outlet of the pressure zone and the outer periphery of the needle 5 to form an effective sealing barrier to prevent leakage of gas or liquid.

[0047] In some embodiments, see Figure 1 , a device for automatically unblocking and back-blowing pressure detection to prevent clogging is proposed, which is equivalent to disclosing a set of automatic unblocking devices for pressure zone outlets. The device automatically unblocks and back-blows the pressure zone outlet in real time through automatic back-blowing and control, thereby preventing clogging of the pressure zone outlet and ensuring the accuracy of pressure detection. The device for automatically unblocking and back-blowing pressure detection to prevent clogging of the pressure zone outlet is proposed, which is equivalent to disclosing a set of automatic unblocking and back-blowing devices for pressure detection to prevent clogging of the pressure zone outlet and ensure the accuracy of pressure detection. The device for automatically unblocking and back-blowing pressure detection to prevent clogging of the pressure zone outlet is proposed, which is equivalent to disclosing a set of automatic unblocking and back-blowing pressure detection ...

[0048] Steelmaking converters experience lulls during production. During these lulls, an anti-clogging, automatic cleaning and backflush pressure detection device installed in process pipeline 7 receives an activation signal from the automatic control system via a signal receiver, which in turn sends an activation signal to actuator 4. The resulting displacement of actuator 4 pushes a clearing needle 5 through pressure zone outlet 6 and into process pipeline 7. Through repeated actuations, the pressure zone outlet 6 (and even process pipeline 7) is automatically unblocked. Once unblocked, the program automatically opens the backflush gas source solenoid valve 2, introducing nitrogen or compressed air, etc., into the pressure zone outlet 6, performing multiple automatic backflush operations. These two procedures can be performed alternately. These actions ensure both automatic unblocking and backflush of the pressure zone outlet 6, ensuring that it is unblocked and thus ensuring accurate pressure detection. A sealing mechanism 3 is provided between the clearing needle 5 and the pressure zone outlet 6 to prevent air leakage.

[0049] The above embodiments are possible examples of implementation of the present invention and are given only to enable those skilled in the art to clearly understand the principles of the present invention. Those skilled in the art should understand that the above discussion of any embodiment is merely exemplary and is not intended to imply that the scope disclosed in the embodiments of the present invention, including the claims, is limited to these examples. Under the overall concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined with each other to produce many other changes in different aspects of the embodiments of the present invention as described above, which are not provided in the specific implementation for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the scope of protection required by the present invention.

Claims

1. An anti-blocking automatic dredging backflush pressure detection device, mounted at the pressure zone outlet (6) of a process pipeline (7), characterized in that: include: Backflush pressure detection mechanism (1), backflush air source solenoid valve (2), sealing mechanism (3), actuator (4) and pass needle (5); The outer side of the pressure zone outlet (6) is connected to the back-blowing pressure detection mechanism (1) and the back-blowing gas source electromagnetic valve (2); One end of the needle (5) is inserted into the pressure zone outlet (6), and the other end is connected to the actuator (4); The sealing mechanism (3) is provided at the connection between the guide needle (5) and the pressure zone outlet (6).

2. The anti-blocking automatic dredging back-blowing pressure detection device according to claim 1 is characterized in that: The actuator (4) is used to push the needle (5) to reciprocate.

3. The anti-blocking automatic dredging back-blowing pressure detection device according to claim 1 is characterized in that: The backflush pressure detection mechanism (1) is used to detect the backflush pressure.

4. The anti-blocking automatic dredging back-blowing pressure detection device according to claim 1 is characterized in that: The back-blowing gas source solenoid valve (2) is used to introduce gas into the pressure zone outlet (6), and the back-blowing gas source solenoid valve (2) is connected to the pressure zone outlet (6) through the back-blowing pressure detection mechanism (1).

5. The anti-blocking automatic dredging back-blowing pressure detection device according to claim 4 is characterized in that: The introduced gas includes nitrogen or compressed air.

6. The anti-blocking automatic dredging back-blowing pressure detection device according to claim 1 is characterized in that: The sealing mechanism (3) is sleeved on the inner periphery of the pressure zone outlet (6) and the outer periphery of the needle (5).

7. The anti-blocking automatic dredging back-blowing pressure detection device according to claim 1 is characterized in that: The length of the needle (5) is greater than the length of the pressure zone outlet (6).

8. The anti-blocking automatic dredging back-blowing pressure detection device according to claim 1 is characterized in that: The backflush pressure detection mechanism (1), the backflush gas source electromagnetic valve (2), the actuator (4) and the pass needle (5) are used to operate individually, sequentially or staggered during the production interval.

9. The anti-blocking automatic dredging back-blowing pressure detection device according to claim 1, characterized in that: The shapes of the needle (5) include needle shape and rotating brush shape.

10. The anti-blocking automatic dredging back-blowing pressure detection device according to claim 1, characterized in that: The sealing mechanism (3) is made of rubber.

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