A clogging device and pressure detection system

Abstract

The utility model provides a kind of dredging device and pressure detection system, comprising: installation pipe body, one end of installation pipe body is hollowly provided with first installation cavity;Fixed component, fixed component is embedded in first installation cavity, and first through-hole is hollowly provided in the inside of fixed component, and internal thread is provided on the inner surface of first through-hole;Push rod, push rod is installed in first through-hole, and external thread matched with internal thread is provided on the outer circumferential surface of push rod, and external thread is threadedly connected with internal thread.The utility model provides a kind of dredging device, solves the technical problem that pressure gauge pressure guide pipe and pipeline connection position are prone to scale blocking pipeline in long-term use in the related art.

Description

Technical Field

[0001] This utility model relates to the field of pressure detection device technology, specifically to a dredging device and pressure detection system. Background Technology

[0002] Pressure gauge guide pipes are dedicated piping systems that connect pressure measurement points (such as pipes and containers) to pressure instruments (such as pressure transmitters, pressure gauges, and pressure switches). Their core function is to accurately and safely transmit pressure signals while protecting the instruments from direct damage by the process media. However, over time, the inner walls of the pressure gauge guide pipes are prone to scale buildup and blockage at the pipe connections, leading to inaccurate pressure data acquisition and distorted control systems. Furthermore, blockages are often difficult to clean, and in some cases, production shutdowns and re-welding of the guide pipes are necessary, jeopardizing stable system operation.

[0003] Therefore, existing technologies need further development. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a dredging device and pressure detection system to solve the technical problem that the pressure gauge guide tube and the connection position of the pipeline are prone to scale buildup and blockage of the pipeline after long-term use in related technologies.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a dredging device is provided, comprising: an installation pipe body, one end of which is hollow and has a first installation cavity; a fixing component, which is embedded in the first installation cavity, and has a first through hole hollow inside, with an internal thread on the inner surface of the first through hole; and a push rod, which is installed in the first through hole, and has an external thread matching the internal thread on its outer circumferential surface, with the external thread and the internal thread being threadedly connected.

[0006] Furthermore, the unblocking device includes a packing material embedded in the first mounting cavity, one end of which abuts against the bottom surface of the mounting cavity, and the other end of which abuts against the fixing component. A second through hole is provided inside the packing material, and a push rod passes through the second through hole.

[0007] Furthermore, the fixing component includes a limiting step, which is disposed at one end of the fixing component near the opening of the first mounting cavity, and the limiting step abuts against the opening.

[0008] Furthermore, the push rod includes a first connecting section and a second connecting section spaced apart. The second connecting section is located at the end of the first connecting section near the tip of the push rod. The first connecting section is provided with external threads, and the outer circumferential surface of the second connecting section is provided with a sealing surface.

[0009] Furthermore, a cutting edge is provided on the outer peripheral surface of the tip, which is used to cut the blockage.

[0010] Furthermore, the mounting tube includes a second mounting cavity communicating with the first mounting cavity. The second mounting cavity is connected to the end of the first mounting cavity away from the opening, and the second mounting cavity is used to accommodate at least a portion of the push rod.

[0011] Furthermore, the push rod includes a handwheel, which is located at the end of the push rod away from the tip.

[0012] A pressure detection system includes: a pressure guiding pipe connected to a pipe to be tested, a measuring pipe connected to the pressure guiding pipe, and a pressure measuring device installed on the measuring pipe; and a dredging device, which is the aforementioned dredging device, with an installation pipe body installed on the pressure guiding pipe, or the installation pipe body being integrally connected to the pressure guiding pipe.

[0013] Beneficial effects: In the unblocking device of this embodiment, the push rod is installed in the first through hole, and its outer circumferential surface is provided with an external thread that matches the internal thread. The external thread and the internal thread form a threaded connection. When unblocking is required, the operator rotates the push rod, and the push rod moves linearly along the axial direction of the first through hole under the drive of the threaded pair, so that the push rod gradually penetrates into the blocked area, thereby enabling the push rod to contact the blockage, break the blockage and remove it from the pipe, thereby achieving effective cleaning of the blocked part of the pressure guide tube. This solves the technical problem in related technologies that the connection between the pressure gauge pressure guide tube and the pipe is prone to scale buildup and blockage of the pipe after long-term use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the unblocking device used in an embodiment of this utility model; Figure 2 This is a schematic diagram of the unblocking device used in this embodiment of the utility model in its working state; Figure 3 This is a schematic diagram of the pressure detection system used in an embodiment of this utility model.

[0015] The above figures include the following reference numerals: 10. Pipeline to be tested; 20. Measuring pipeline; 30. Pressure guiding pipe; 1. Installation tube body; 11. First installation cavity; 12. Second installation cavity; 2. Fixing component; 21. First through hole; 22. Limiting step; 221. Opening; 3. Push rod; 31. First connecting section; 32. Second connecting section; 34. Tip; 35. Handwheel; 4. Packing material. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0017] According to an embodiment of this utility model, a dredging device is provided. Please refer to [link / reference]. Figures 1 to 3 The device includes: a mounting tube 1, one end of which is hollow and has a first mounting cavity 11; a fixing component 2, which is embedded in the first mounting cavity 11, and has a first through hole 21 inside, with an internal thread on the inner surface of the first through hole 21; and a push rod 3, which is installed in the first through hole 21, with an external thread matching the internal thread on the outer circumferential surface of the push rod 3, and the external thread is threadedly connected to the internal thread.

[0018] Specifically, the installation tube 1 serves as the main load-bearing structure of the unblocking device. One end of the tube is hollow and has a first installation cavity 11. The first installation cavity 11 provides installation space and movement channel for the internal fixing component 2 and push rod 3. The fixing component 2 is used to support the push rod 3. The first through hole 21 in the fixing component 2 serves as the movement channel for the push rod 3. The internal thread is the key structure that enables the push rod 3 to advance.

[0019] In the unblocking device of this embodiment, the push rod 3 is installed in the first through hole 21. Its outer circumferential surface is provided with an external thread that matches the internal thread. The external thread and the internal thread form a threaded connection. When unblocking is required, the operator rotates the push rod 3. Driven by the threaded pair, the push rod 3 moves linearly along the axial direction of the first through hole 21, so that the push rod 3 gradually penetrates into the blocked area, thereby enabling the push rod 3 to contact the blockage, break the blockage and remove it from the pipe, thereby achieving effective cleaning of the blocked part of the pressure guide tube. This solves the technical problem in the related technology that the connection between the pressure gauge pressure guide tube and the pipe is prone to scale buildup and blockage of the pipe after long-term use.

[0020] In some embodiments, the end of the push rod 3 is provided with a tip 34, which facilitates the insertion of the tip 34 into the blockage, thereby making it easier to break the blockage.

[0021] In some embodiments, the tip 34 has a conical structure.

[0022] In the unblocking device of this embodiment, see Figure 1The unblocking device includes a packing 4 embedded in the first mounting cavity 11. One end of the packing 4 abuts against the bottom surface of the mounting cavity, and the other end of the packing 4 abuts against the fixing component 2. A second through hole is provided inside the packing 4, and a push rod 3 passes through the second through hole. Specifically, the packing 4 is usually made of flexible, pressure-resistant, and corrosion-resistant materials such as polytetrafluoroethylene, which has good compression and resilience properties. For example, polyethylene packing can be used as the packing 4. The packing 4 is filled in the gap between the push rod 3 and the first mounting cavity 11, and the fixing component 2 is used to press the packing 4 tightly. This achieves a static seal between the mounting pipe 1 and the fixing component 2, as well as a dynamic seal between the push rod 3 and the packing 4, preventing the process medium from leaking from the push rod when unblocking the pressure guide pipe, and avoiding the problem of medium leakage that may occur in high-pressure and leak-prone environments.

[0023] In the unblocking device of this embodiment, see Figure 1 The fixing component 2 includes a limiting step 22, which is disposed at one end of the fixing component 2 near the opening 221 of the first mounting cavity 11, and abuts against the opening 221 of the mounting cavity. Specifically, by providing a limiting step 22 at one end of the fixing component 2 near the opening 221 of the first mounting cavity 11 and abutting against the end face of the opening 221, the fixing component 2 is axially positioned, preventing it from excessively entering the first mounting cavity 11.

[0024] In some embodiments, the fixing component 2 is tightly fitted with the first mounting cavity 11, which on the one hand ensures the sealing between the fixing component 2 and the first mounting cavity 11, and on the other hand facilitates the installation and removal of the fixing component 2.

[0025] In the unblocking device of this embodiment, see Figure 1 The push rod 3 has a pointed part 34 at its end for inserting into the blockage. The push rod 3 includes a first connecting section 31 and a second connecting section 32 spaced apart. The second connecting section 32 is located at the end of the first connecting section 31 near the pointed part 34 of the push rod 3. The first connecting section 31 is provided with an external thread, and the outer peripheral surface of the second connecting section 32 is provided with a sealing surface.

[0026] Specifically, the sealing surface is a smooth outer surface. By adjusting the setting lengths of the first connecting section 31 and the second connecting section 32 respectively, it is ensured that the sealing surface and the inner wall of the packing 4 can always maintain close contact, thereby preventing the high-pressure medium in the pipeline under test from leaking outward along the movement path of the push rod 3, which is beneficial to maintaining a stable sealing effect during the reciprocating motion of the push rod 3.

[0027] In the unblocking device of this embodiment, the sealing surface is set on the second connecting section 32 connected to the first connecting section 31, which realizes the reasonable separation of functional areas. The external thread of the first connecting section 31 is used to engage with the internal thread of the fixing component 2 to realize power transmission, and the sealing surface of the second connecting section 32 is used to provide sealing function.

[0028] In the unblocking device of this embodiment, see Figure 1 The tip 34 has a cutting edge on its outer peripheral surface, which is used to cut blockages. By setting the cutting edge, the tip 34 has the functions of cutting, breaking and pushing blockages. Under the action of axial thrust, the tip 34 can penetrate or push open soft blockages, while the cutting edge can cut and break harder scale. The broken blockage fragments can be flushed away with the flow of medium in the pipeline.

[0029] Preferably, the cutting edge is spirally arranged on the outer peripheral surface of the tip 34.

[0030] In the unblocking device of this embodiment, see Figure 1 The mounting tube 1 includes a second mounting cavity 12 that communicates with the first mounting cavity 11. The second mounting cavity 12 is connected to the end of the first mounting cavity 11 away from the opening 221. The second mounting cavity 12 is used to accommodate at least a portion of the push rod 3. Thus, during normal daily use, the push rod 3 is raised and stored in the second mounting cavity 12.

[0031] Specifically, both the first mounting cavity 11 and the second mounting cavity 12 are cylindrical cavities. The inner diameter of the first mounting cavity 11 is larger than the inner diameter of the second mounting cavity 12. A stepped structure is formed at the connection between the first mounting cavity 11 and the second mounting cavity 12, and the stepped structure limits the filling material 4. In the unblocking device of this embodiment, see... Figure 1-2 The push rod 3 includes a handwheel 35, which is located at the end of the push rod 3 away from the tip 34. Thus, by providing the handwheel 35 at the end of the push rod 3 away from the tip 34, the operator can easily control the push rod 3 to advance or retract using the handwheel 35.

[0032] In the unblocking device of this embodiment, the blockage detection port can be unblocked online. Personnel can operate it regularly to remove impurities without disassembling the pressure transmitter, protect the pressure guide pipe from running normally, and reduce the workload of personnel in cleaning such blockages.

[0033] In the pressure detection system of this embodiment, see Figure 3The pressure detection system includes: a pressure guiding pipe connected to the pipe 10 to be tested, a measuring pipe 20 connected to the pressure guiding pipe, and a pressure measuring device installed on the measuring pipe 20; and a clearing device, which is the aforementioned clearing device, with the mounting pipe 1 installed on the pressure guiding pipe, or the mounting pipe 1 being integrally connected to the pressure guiding pipe. Specifically, the measuring pipe 20 is located at the front end of the clearing device according to the flow direction of the medium.

[0034] It should be noted that the unblocking device in this application can be made into a detachable structure, so that the installation pipe 1 and the pressure guiding pipe can be detachably connected, or the installation pipe 1 and the pressure guiding pipe can be integrally formed. Regardless of which method is adopted, the unblocking device can be unblocked online without repeated disassembly and assembly, which greatly improves the unblocking efficiency.

[0035] Alternatively, the pressure measuring device can be a pressure transmitter or other measuring instrument.

[0036] In the pressure detection system of this embodiment, see Figure 1 During normal daily use, push rod 3 should be raised to ensure that the tip 34 is located at the rear end of the measuring pipe 20, preventing the medium from entering the measuring pipe 20 and affecting the measurement results. In case of blockage, refer to... Figure 2 Rotate the handwheel 35 to push the push rod 3 into the connection between the pressure guide tube and the pressure test pipe 10. When the push rod 3 falls, it breaks up the blockage. The impurities blocking the pressure guide tube are pushed into the pressure test pipe 10 and flushed away with the medium in the pressure test pipe 10, thus achieving the purpose of online cleaning.

[0037] In some embodiments, see Figure 3 If the monitoring points have high requirements and pressure measurement cannot be interrupted, two sets of unblocking devices can be used in parallel. Each set is connected to two pressure-conducting pipes in parallel for pressure measurement, achieving a one-in-one standby effect. See [link / reference]. Figure 3 One set of unblocking devices is in working condition. Push rod 3 falls to break up the blockage. The pressure measuring device on the measuring pipeline stops measuring pressure. The other set of unblocking devices connected in parallel does not work. The pressure measuring device on the measuring pipeline measures pressure normally.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0040] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0041] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0042] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A dredging device, characterized in that, include: The mounting tube (1) has a hollow first mounting cavity (11) at one end. Fixing component (2), the fixing component (2) is embedded in the first mounting cavity (11), the fixing component (2) is hollow inside and has a first through hole (21), and the inner surface of the first through hole (21) is provided with an internal thread; Push rod (3) is installed in the first through hole (21). The outer circumferential surface of the push rod (3) is provided with an external thread that matches the internal thread. The external thread is threadedly connected to the internal thread.

2. The unblocking device according to claim 1, characterized in that, The unblocking device includes a filler (4) embedded in the first mounting cavity (11). One end of the filler (4) abuts against the bottom surface of the mounting cavity, and the other end of the filler (4) abuts against the fixing component (2). A second through hole is provided inside the filler (4), and the push rod (3) passes through the second through hole.

3. The unblocking device according to claim 1, characterized in that, The fixing component (2) includes a limiting step (22), which is disposed at one end of the fixing component (2) near the opening (221) of the first mounting cavity (11), and the limiting step (22) abuts against the opening (221).

4. The unblocking device according to claim 1, characterized in that, The push rod (3) includes a first connecting section (31) and a second connecting section (32) spaced apart. The second connecting section (32) is located at one end of the first connecting section (31) near the tip (34) of the push rod (3). The first connecting section (31) is provided with the external thread, and the outer circumferential surface of the second connecting section (32) is provided with a sealing surface.

5. The unblocking device according to claim 4, characterized in that, The outer peripheral surface of the tip (34) is provided with a cutting blade, which is used to cut the blockage.

6. The unblocking device according to claim 3, characterized in that, The mounting tube (1) includes a second mounting cavity (12) communicating with the first mounting cavity (11). The second mounting cavity (12) is connected to one end of the first mounting cavity (11) away from the opening (221). The second mounting cavity (12) is used to accommodate at least a portion of the push rod (3).

7. The unblocking device according to claim 4, characterized in that, The push rod (3) includes a handwheel (35) which is located at the end of the push rod (3) away from the tip (34).

8. A pressure detection system, characterized in that, The pressure detection system includes: A pressure guiding pipe is connected to the pressure-testing pipe (10), and a measuring pipe (20) is connected to the pressure guiding pipe. A pressure measuring device is installed on the measuring pipe (20). The unblocking device is any one of the unblocking devices according to claims 1-7, wherein the mounting pipe (1) is mounted on the pressure guiding pipe, or the mounting pipe (1) is integrally connected to the pressure guiding pipe.

Images