Portable blockage blowing device

Abstract

The invention relates to the technical field of plug blowing, in particular to a portable plug blowing device which comprises a power source and a connecting component, the power source comprises a miniature inflating pump and a connecting air nozzle mounted on the miniature inflating pump, the connecting component comprises a valve, one end of the valve is fixed to the air nozzle through a switching part, and the other end of the valve is connected with the connecting air nozzle. And the other end of the blowback pipe is detachably connected to the to-be-detected gas measuring and sampling pipe. The miniature blast pump is used as a power source, the valve is used as a connecting part, and the miniature blast pump is an existing miniature blast pump and is light and small in overall size, so that the portable blockage blowing device is formed, the cleaning efficiency is improved, the working intensity of operators is reduced, and the gas measurement sampling tube is more convenient and quicker to maintain. Furthermore, an annular groove is formed in an existing plastic air tap shell and matched with a first annular air bag in the switching piece, effective sealing between the air tap and the second nut is achieved, the air tightness and reliability of connection are remarkably improved, and the risk of air leakage is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of blowing and plugging, and in particular to a portable blowing and plugging device. Background Art

[0002] In the field of industrial measurement, especially in power plants and chemical plants, with the development of economy and the advancement of technology, the use of measuring devices is becoming more and more widespread, and the requirements for measurement accuracy are also increasing. The increase in these devices has led to a more common problem of sampling tube blockage. Although traditional anti-blocking sampling methods, such as built-in three-layer anti-blocking mechanisms, self-cleaning samplers, and continuous purge anti-blocking devices, have certain effects, they still cannot completely avoid blockage, especially in harsh working conditions such as fluidized bed boilers. The flow of materials can easily cause the blockage of conventional anti-blocking samplers, affecting the safe operation of the boiler.

[0003] Since oxide scale, dirt and other dirt may be generated during the manufacturing, transportation and storage of pipes, if they are not thoroughly blown clean before installation, it may cause pipe blockage. The six units in this power plant have thousands of pressure measuring points. In daily work, we always have to carry dozens of meters of air source pipes and connect them to the compressed air pipelines, which brings great inconvenience to the work. It is very inconvenient to climb the stairs every time holding the air source pipe.

[0004] Among them, the purging and anti-blocking of instrument pipelines is a headache, especially for instrument pipelines with small diameters, long lengths and many elbows. Once blocked, it will be extremely difficult to clear them. In addition, impurities in the system are easy to enter the pressure pipe and block the pressure tapping port, some media are easy to crystallize and block the pressure tapping hole, and instrument pipelines are also easy to freeze in winter. These problems account for a relatively high proportion of instrument failures, seriously affecting the production process. Summary of the invention

[0005] In view of the problems existing in the above-mentioned existing portable plugging blowing device, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a portable blowing and blocking device, the purpose of which is to: the existing equipment for cleaning the gas measurement sampling tube to be detected always holds a gas source tube of several tens of meters and connects it to the compressed air pipeline, which brings great inconvenience to the work. It is very inconvenient to climb stairs every time holding the gas source tube.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a portable blowing and plugging device, comprising a power source and a connecting component, wherein the power source comprises a micro air pump and a connecting air nozzle installed on the micro air pump, and the connecting component comprises a valve, one end of the valve is fixed to the air nozzle through a switching component, and the other end is detachably connected to the backblowing tube of the gas measurement sampling tube to be detected.

[0008] As a preferred solution of the portable blowing and plugging device described in the present invention, the left and right ends of the valve are provided with outwardly extending screw tube openings, which are respectively the first screw tube and the second screw tube. The first screw tube is screwed to the back-blowing tube through a first nut, and the second screw tube is connected to the air nozzle through a second nut and a switching member.

[0009] As a preferred solution of the portable plugging blowing device of the present invention, the switching member is threaded inside the second nut and is located in the gap between the second nut and the air nozzle.

[0010] As a preferred solution of the portable plugging blowing device of the present invention, the switching member includes a spiral ring and a main airbag installed inside the spiral ring, and a first annular airbag and a second annular airbag are arranged side by side inside the main airbag.

[0011] As a preferred solution of the portable blowing and plugging device of the present invention, the air nozzle housing is made of plastic and has an annular groove at the front end thereof.

[0012] As a preferred solution of the portable plugging blowing device of the present invention, the first annular airbag is filled in the annular groove, and the second annular airbag is located at the port of the air nozzle.

[0013] As a preferred solution of the portable plugging blowing device of the present invention, the first annular airbag and the second annular airbag are both elastic airbags.

[0014] As a preferred embodiment of the portable blowing and plugging device of the present invention, a first one-way valve is arranged at the entrance of the main airbag, a vent is arranged between the first annular airbag and the main airbag, and a second one-way valve is arranged between the second annular airbag and the main airbag.

[0015] As a preferred solution of the portable plugging blowing device of the present invention, the first one-way valve and the second one-way valve are both configured to open inwardly in one direction.

[0016] As a preferred solution of the portable plugging blowing device of the present invention, the screw ring is screwed to the inner wall of the second nut.

[0017] The beneficial effects of the present invention are as follows: by using a micro air pump as a power source and a valve as a connecting component, since the micro air pump is already available and the overall volume is small and light, a portable blowing and plugging device is formed, which not only improves the cleaning efficiency, but also reduces the work intensity of the operator, making the maintenance of the gas measurement sampling tube easier and faster. Further, by opening an annular groove on the existing plastic gas nozzle shell and cooperating with the first annular airbag in the switching part, an effective seal between the gas nozzle and the second nut is achieved, which significantly improves the air tightness and reliability of the connection and reduces the risk of gas leakage. At the same time, the annular groove opened at the front end of the shell simplifies the matching process with the switching part, making the connection and disassembly between the gas nozzle and the valve more convenient and faster. In combination with the sequential inflation method, the first annular airbag is first inflated to achieve a preliminary seal, and then the second annular airbag is inflated to enhance the sealing effect. This double sealing mechanism provides a more stable and safe connection, which is suitable for different working pressures and environmental conditions. Since the connection and disassembly between the gas nozzle and the switching part are simple, when the system components are damaged, they can be quickly replaced, which reduces the maintenance cost and improves the efficiency of the maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 The overall structure of the portable plugging blowing device of the present invention is shown in FIG. Figure 1 .

[0020] Figure 2 The overall structure of the portable plugging blowing device of the present invention is shown in FIG. Figure 2 .

[0021] Figure 3 It is a front view structural schematic diagram of the portable plugging blowing device of the present invention.

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting components of the portable plugging blowing device of the present invention.

[0023] Figure 5 for Figure 4 A schematic diagram of the enlarged structure in the middle.

[0024] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0025] In the figure:

[0026] 100, power source; 101, micro air pump; 102, air nozzle; 102a, annular groove;

[0027] 200, connecting component; 201, valve; 201a, first solenoid; 201b, second solenoid; 202, switching member; 202a, spiral ring; 202b, main airbag; 202c, first annular airbag; 202d, second annular airbag; 202e, first one-way valve; 202f, vent hole; 202g, second one-way valve; 203, first nut; 204, second nut;

[0028] 300. Backflush tube. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1

[0034] Reference Figure 1-Figure 3 , which is the first embodiment of the present invention, provides a portable blowing and plugging device, including a power source 100 and a connecting component 200, wherein the power source 100 includes a micro air pump 101 and a connecting air nozzle 102 installed on the micro air pump 101, and the connecting component 200 includes a valve 201, one end of the valve 201 is fixed to the air nozzle 102 through a switching member 202, and the other end is detachably connected to the backblowing tube 300 of the gas measurement sampling tube to be detected.

[0035] In the field of industrial measurement, especially in environments such as power plants and chemical plants, the cleanliness of gas measurement sampling tubes is crucial to the accuracy of measurements. Traditional cleaning methods are often time-consuming and inefficient, especially when long gas source tubes need to be frequently moved and manually purged. In order to improve efficiency and reduce work intensity, a new type of portable blowing and plugging device has been designed to solve this problem.

[0036] The working principle of the device is as follows: first, the connecting component 200 of the device is detachably installed on the backwash tube 300 of the gas measurement sampling tube to be detected. This step ensures the sealed connection between the device and the sampling tube, laying the foundation for the subsequent backwashing operation. Then, the operator turns the switching valve of the sampling tube to connect it with the air nozzle 102. While opening the valve 201, the micro air pump 101 is started. The pump delivers compressed air to the air nozzle 102 through a hose. Subsequently, the compressed air is rushed into the gas measurement sampling tube to be detected through the valve 201 to achieve backwashing of the interior thereof.

[0037] In this process, the working principle of the micro air pump 101 is based on the motor driving the piston or diaphragm and other moving parts to perform reciprocating motion, thereby compressing the air and generating airflow. This design enables the air pump to generate sufficient pressure to effectively deliver air to the sampling tube to achieve the cleaning effect. At the same time, the precise control of the valve 201 ensures the one-way flow of the gas, prevents reverse leakage, and ensures the safety and effectiveness of the backwashing process.

[0038] This portable plugging blower not only improves the cleaning efficiency, but also reduces the workload of operators, making the maintenance of gas measurement sampling tubes easier and faster. In addition, the design of the device also takes into account the convenience and practicality of on-site operation, making it an efficient industrial measurement pipeline cleaning solution.

[0039] Example 2

[0040] Reference Figure 1-Figure 5 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the left and right ends of the valve 201 are both provided with outwardly extending screw tube ports, which are respectively the first screw tube 201a and the second screw tube 201b, the first screw tube 201a is screwed to the back-blowing pipe 300 through the first nut 203, and the second screw tube 201b is connected to the air nozzle 102 through the second nut 204 and the switching member 202. The switching member 202 includes a screw ring 202a, and the screw ring 202a is screwed to the inner wall of the second nut 204.

[0041] By rotating the first nut 203, the first solenoid 201a and the backwash tube 300 are driven to close toward the middle at the same time, so as to connect the valve 201 with the gas measurement sampling tube to be detected to realize subsequent backwashing; since the switching member 202 is screwed to the inside of the second nut 204 through the switching member 202, and is located in the gap between the second nut 204 and the gas nozzle 102, the second nut 204 is first screwed to the second solenoid 201b, and then the switching member 202 is screwed to the inner wall of the second nut 204 through the screw ring 202a, and then the gas nozzle 102 is inserted into the switching member 202, and the gas nozzle 102 is connected to the valve 201, so as to connect the entire backwashing gas path.

[0042] Further: During the connection process, it may be necessary to add sealing rings or use sealants at each threaded connection to ensure air tightness and prevent gas leakage, which is essential to ensure the efficiency of the backflush operation. Through the design of threaded connection, the installation and disassembly of the entire system becomes simple and quick, and operators can easily perform maintenance and replace parts.

[0043] The remaining structures are the same as those of Example 1.

[0044] Example 3

[0045] Reference Figures 4 to 6 , which is the third embodiment of the present invention. Different from the previous embodiment, in order to solve the problem of mismatched diameters between the valve 201 and the gas nozzle 102 and difficulty in disassembly and replacement after fixation, the present application designs a switching component 202. The switching component 202 serves as a transfer component between the valve 201 and the gas nozzle 102, and realizes a detachable connection and seal between the two. This design cleverly solves the gap problem caused by the diameter difference, ensures the sealing of the connection, and avoids the fixation problems caused by traditional welding or direct connection. By introducing the switching component 202, even if the equipment is damaged after long-term use, any damaged part of the valve 201 or the power source 100 can be easily replaced separately, which greatly improves the maintenance efficiency and service life of the equipment.

[0046] The switching member 202 is screwed inside the second nut 204 and is located in the gap between the second nut 204 and the air nozzle 102. The switching member 202 includes a screw ring 202a and a main air bag 202b installed inside the screw ring 202a. A first annular air bag 202c and a second annular air bag 202d are arranged side by side inside the main air bag 202b. The screw ring 202a is screwed to the inner wall of the second nut 204.

[0047] Since the existing air nozzle 102 shell is made of plastic, we can open an annular groove 102a on its shell near the port to cooperate with the first annular air bag 202c in the switching member 202 to achieve one level of sealing of the gap between the air nozzle 102 and the second nut 204.

[0048] This design brings multiple benefits and significant effects. The annular groove 102a cooperates with the first annular airbag 202c in the switching member 202. When the first annular airbag 202c is inflated, it can fit tightly with the annular groove 102a of the outer shell of the gas nozzle 102 to form a seal. This sealing method can not only effectively prevent gas leakage, but also adapt to different connection conditions due to the elastic characteristics of the airbag, and provide a stable sealing effect. By first inflating the first annular airbag 202c and then inflating the second annular airbag 202d, double sealing is achieved. After the first annular airbag 202c is inflated, it cooperates with the annular groove 102a of the outer shell of the gas nozzle 102 to initially achieve sealing. Subsequently, the inflation of the second annular airbag 202d further enhances the sealing effect, especially in the gap between the gas nozzle 102 and the second nut 204. This double sealing mechanism significantly improves the reliability and safety of the connection. The design of the annular groove 102a on the plastic shell makes the connection and disassembly between the gas nozzle 102 and the switching member 202 easier. This design allows the air nozzle 102 to be quickly disassembled when a damaged part needs to be replaced without having to perform complicated operations on the entire system, thereby improving the convenience of maintenance.

[0049] The first annular airbag 202c is filled in the annular groove 102a, and the second annular airbag 202d is located at the port of the air nozzle 102. The first annular airbag 202c and the second annular airbag 202d are both elastic airbags. A first one-way valve 202e is provided at the entrance of the main airbag 202b, a vent 202f is provided between the first annular airbag 202c and the main airbag 202b, and a second one-way valve 202g is provided between the second annular airbag 202d and the main airbag 202b. The first one-way valve 202e and the second one-way valve 202g are both set to open inward in one direction.

[0050] It should be explained that: a first one-way valve 202e is provided at the entrance of the main airbag 202b, and its function is to control the one-way flow of gas into the main airbag 202b. This valve 201 ensures that the gas can only enter the main airbag 202b from the external pipe, and cannot flow out in the opposite direction, which provides a basis for the sealing and stability of the system. The first annular airbag 202c is connected to the main airbag 202b through a vent 202f. This vent 202f allows the gas in the main airbag 202b to flow into the first annular airbag 202c, thereby achieving the inflation of the first annular airbag 202c. A second one-way valve 202g is provided between the second annular airbag 202d and the main airbag 202b. This valve 201 is also designed to open inward in one direction to control the gas from the main airbag 202b to flow into the second annular airbag 202d.

[0051] The order of first inflating the first annular airbag 202c and then inflating the second annular airbag 202d allows the system to gradually build up pressure in a predetermined order. This sequential control ensures that the airbags are gradually expanded according to the design requirements, avoiding instability or overpressure that may be caused by simultaneous inflation. By first inflating the first annular airbag 202c, the initial locking and sealing of the air nozzle 102 can be ensured. After the first annular airbag 202c is full, the second annular airbag 202d is inflated, so that the air nozzle 102 can be gradually locked at different stages, enhancing the sealing and stability of the entire system. This sequential inflation method can prevent a single airbag from being overfilled, because each airbag has its designed maximum expansion limit, and the first annular airbag 202c also has an annular groove 102a for further expansion. By controlling the inflation sequence, it can be ensured that each airbag is inflated to an appropriate pressure to avoid damage or failure caused by overfilling. Sequential inflation also contributes to safety because it allows operators to check the pressure and sealing of the system at each stage, detect and solve problems in time, and avoid potential safety risks caused by gas leakage or abnormal pressure. This design provides better flexibility and control, allowing the inflation strategy to be adjusted under different working conditions to adapt to different operational needs.

[0052] In summary, the order of inflating the first annular airbag 202c first and then the second annular airbag 202d not only improves the stability and safety of the system, but also enhances the sealing of the connection between the air nozzle 102 and the valve 201, ensuring the efficient and reliable operation of the entire pneumatic system.

[0053] First, in order to ensure the sealed connection between the gas nozzle 102 and the valve 201, the switching element 202 needs to be pre-inflated before the actual connection. This step is specifically:

[0054] The main airbag 202b is connected to the external pipe with the first one-way valve 202e, and gas is injected into the main airbag 202b. The main airbag 202b is connected to the first annular airbag 202c through the vent hole 202f, so that when the main airbag 202b is inflated, the first annular airbag 202c also expands. The first annular airbag 202c is designed in the annular groove 102a of the gas nozzle 102, and its expansion can achieve locking and preliminary sealing of the gas nozzle 102 to prevent gas leakage. When the first annular airbag 202c fills the annular groove 102a and reaches the expansion limit, continued inflation will activate the second one-way valve 202g, so that the gas flows to the second annular airbag 202d. The expansion of the second annular airbag 202d wraps the port of the gas nozzle 102, and forms a large area of ​​fit with the end surface of the gas nozzle 102, which further enhances the sealing effect of the gas nozzle 102 in the second nut 204, ensuring that the gas will not leak under high pressure. In order to further lock the air nozzle 102, the second annular airbag 202d and the first annular airbag 202c jointly act on the raised portion between the annular groove 102a of the air nozzle 102 and the port. This double locking mechanism ensures the stability of the connection and maintains the reliability of the connection even in a high-pressure or vibrating working environment.

[0055] After completing the above steps, the external pipe only needs to be pulled out, and the gas nozzle 102 is completed by being fixed and sealed between the switching member 202 and one end of the valve 201. This design not only simplifies the connection process, but also improves the safety and efficiency of the connection.

[0056] The remaining structure is the same as that of Example 2.

[0057] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only several embodiments are described in detail in this disclosure, it should be easily understood by the personnel referring to this disclosure that many modifications are possible (for example, the size, scale, structure, shape and ratio of various elements, and parameter values ​​(for example, temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of a plurality of parts or elements, the position of the element can be inverted or otherwise changed, and the property or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method step can be changed or reordered according to alternative embodiments. Therefore, the present invention is not limited to specific embodiments, but extends to a variety of modifications still falling within the scope of the appended claims.

[0058] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A portable plugging blowing device, characterized in that: The invention comprises a power source (100) and a connecting component (200), wherein the power source (100) comprises a micro air pump (101) and a connecting air nozzle (102) mounted on the micro air pump (101), and the connecting component (200) comprises a valve (201), one end of the valve (201) is fixed to the air nozzle (102) via a switching member (202), and the other end of the valve (201) is detachably connected to a backflush tube (300) of a gas measurement sampling tube to be detected.

2. The portable plugging blowing device according to claim 1, characterized in that: The left and right ends of the valve (201) are both provided with outwardly extending screw tube openings, which are respectively a first screw tube (201a) and a second screw tube (201b). The first screw tube (201a) is screwed to the back-blowing pipe (300) via a first nut (203), and the second screw tube (201b) is connected to the air nozzle (102) via a second nut (204) and a switching member (202).

3. The portable plugging blowing device according to claim 2, characterized in that: The switching member (202) is threaded inside the second nut (204) and is located in a gap between the second nut (204) and the air nozzle (102).

4. The portable plugging blowing device according to claim 3 is characterized in that: The switching member (202) comprises a spiral ring (202a) and a main air bag (202b) installed inside the spiral ring (202a), and a first annular air bag (202c) and a second annular air bag (202d) are arranged in parallel inside the main air bag (202b).

5. The portable plugging blowing device according to claim 4, characterized in that: The shell of the air nozzle (102) is made of plastic, and an annular groove (102a) is provided at the front end of the shell.

6. The portable plugging blowing device according to claim 5, characterized in that: The first annular airbag (202c) is filled in the annular groove (102a), and the second annular airbag (202d) is located at the port of the air nozzle (102).

7. The portable plugging blowing device according to claim 4, characterized in that: The first annular airbag (202c) and the second annular airbag (202d) are both elastic airbags.

8. The portable plugging blowing device according to claim 4, characterized in that: A first one-way valve (202e) is provided at the entrance of the main airbag (202b), a vent hole (202f) is provided between the first annular airbag (202c) and the main airbag (202b), and a second one-way valve (202g) is provided between the second annular airbag (202d) and the main airbag (202b).

9. The portable plugging blowing device according to claim 8, characterized in that: The first one-way valve (202e) and the second one-way valve (202g) are both configured to open inwardly in one direction.

10. The portable plugging blowing device according to claim 4, characterized in that: The screw ring (202a) is screwed to the inner wall of the second nut (204).

Images