Steel lining isostatic pressing polytetrafluoroethylene pipe

Abstract

The utility model relates to the technical field of conveying pipelines, in particular to a steel lining isostatic pressing polytetrafluoroethylene pipe. Comprising a protective outer steel pipe, a lining teflon pipe is arranged in the protective outer steel pipe, connecting flanges are installed at the two ends of the protective outer steel pipe, two sets of protective sleeves are symmetrically arranged, the two protective sleeves are arranged in an up-down structure, protective sleeve bodies are of semicircular structures, and the two protective sleeves are connected to the outer portion of the protective outer steel pipe in a sleeving mode; the two ends of the protective sleeve are each provided with a long-strip-shaped connecting plate. The baffle rings are fixedly installed at the left end and the right end of the inner end face of the protection sleeve and are of an arc-shaped structure. The controller is fixedly installed on the outer end face of the lower protection sleeve, and a detection rod is fixedly installed on the upper end face of the controller and located in a cavity between the protection sleeve and the protection outer steel pipe. The utility model has the positive effects that the material leakage is avoided, the potential safety hazard is reduced, the flange through holes of the two steel lining isostatic pressing polytetrafluoroethylene pipes are convenient to align, and the butt joint installation of the pipelines is convenient.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to a steel-lined isostatic PTFE pipe. Background Technology

[0002] Due to its excellent corrosion resistance, chemical stability, and relatively suitable mechanical properties, steel-lined isostatic PTFE tubing is widely used in pipeline transportation in the petroleum and chemical industries. However, during prolonged use, PTFE tubing can leak due to material corrosion. This leakage can then corrode the outer steel pipe, leading to further material spillage and posing a significant safety hazard. Furthermore, when connecting two steel-lined isostatic PTFE tubing units, the through holes on the two connecting flanges need to be aligned, but this alignment process can be inconvenient for workers. Utility Model Content

[0003] The steel-lined isostatic PTFE pipe provided by this utility model aims to prevent material leakage, reduce safety hazards, and facilitate the alignment of the flange through holes of two steel-lined isostatic PTFE pipes, thus facilitating pipe connection and installation.

[0004] The steel-lined isostatic PTFE tube provided by this utility model includes a protective outer steel tube, the inner side of which is lined with a PTFE tube. A connecting flange is installed at each of the left and right ends of the protective outer steel tube. It also includes a protective sleeve, a retaining ring, and a controller. Two sets of protective sleeves are symmetrically arranged, with the two sleeves arranged in an upper and lower structure. The main body of the protective sleeve is semi-circular. The two protective sleeves are fitted onto the outside of the protective outer steel tube. A long strip-shaped connecting plate is installed at each end of the protective sleeve. The retaining ring is fixedly installed at the left and right ends of the inner end face of the protective sleeve, and the retaining ring has an arc-shaped structure. The controller is fixedly installed on the outer end face of the lower protective sleeve, and a probe is fixedly installed on the upper end face of the controller. The probe is located in the cavity between the protective sleeve and the protective outer steel tube.

[0005] Furthermore, the surface of the connecting plate is uniformly provided with connecting holes. When the two protective sleeves are joined together, the bolt passes through the connecting holes and fixes the two protective sleeves together.

[0006] Furthermore, the inner end face of the retaining ring is fitted with the outer end face of the protective outer steel pipe, and a groove is provided on the inner end face of the retaining ring, with a sealing strip snapped into the inside of the groove.

[0007] Furthermore, the inner end of the sealing strip is engaged in the groove inside the retaining ring, and the outer end of the sealing strip is divided into an arc-shaped structure.

[0008] Furthermore, an alarm is installed on the right side of the controller, and a signal transmitter is installed on the left side of the controller. The alarm is electrically connected to the controller, and the signal transmitter is electrically connected to the controller.

[0009] Furthermore, the surface of the connecting flange is provided with six through holes in a ring shape, and the outer end face of the connecting flange is provided with six limiting holes in a ring shape, with the limiting holes and through holes arranged in an alternating structure.

[0010] The steel-lined isostatic PTFE tube provided by this utility model has the following beneficial effects:

[0011] 1. The connecting flange of this utility model has six through holes evenly spaced in a ring on its surface. When connecting two steel-lined isostatic PTFE tubes, workers can pass bolts through the through holes to join the two connecting flanges together. During the installation of the two connecting flanges, the six limiting holes on the outer surface of the connecting flanges allow workers to insert locating pins into the limiting holes, and then insert the other end of the locating pin into a limiting hole on the surface of the other connecting flange, thus achieving the positioning of the two connecting flanges.

[0012] 2. The protective sleeve of this utility model is symmetrically provided in two sets, which are sleeved on the outside of the protective outer steel pipe to form a protective enclosure for the protective outer steel pipe. The retaining ring is fixedly installed on the left and right ends of the inner end face of the protective sleeve. The retaining ring has an arc-shaped structure, and its inner end face fits against the outer end face of the protective outer steel pipe. The inner end face of the retaining ring has a groove, and a sealing strip is engaged inside the groove. The inner end of the sealing strip is engaged in the groove inside the retaining ring. The outer end face is divided into an arc-shaped structure. This sealing structure can effectively prevent external impurities from entering the space between the protective sleeve and the protective outer steel pipe, and also prevent the internal conveyed material from easily seeping out of the space after leakage.

[0013] 3. The outer end face of the protective sleeve of this utility model is fixedly installed with a controller. The detection rod is located in the cavity between the protective sleeve and the outer steel pipe. The sensor is electrically connected to the controller. When the material inside the pipe leaks, the leaked material will enter the cavity between the protective sleeve and the outer steel pipe. At this time, the sensor at the end of the detection rod can detect the leak and transmit the corresponding signal to the controller to achieve the purpose of synchronous monitoring.

[0014] 4. An alarm is installed on the right side of the controller of this utility model, and a signal transmitter is installed on the left side. The alarm is electrically connected to the controller, and the signal transmitter is electrically connected to the controller. When the controller receives a leakage signal transmitted from the sensor at the end of the detection rod, it will trigger the alarm to sound an alarm, thereby alerting the on-site personnel that there is a leak in the pipeline.

[0015] Therefore, this utility model has the positive effects of preventing material leakage, reducing safety hazards, and facilitating the alignment of the flange through holes of two steel-lined isostatic PTFE pipes, thus making pipe connection and installation easier. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an exploded structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the protective sleeve, retaining ring, and sealing strip of this utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the protective outer steel pipe of this utility model;

[0023] Figure 5 This is a schematic diagram of the protective sleeve and connecting plate structure of this utility model;

[0024] Figure 6 This is the utility model Figure 5 A magnified view of the structure at point A in the middle;

[0025] Figure label:

[0026] 1. Protective outer steel pipe; 101. Inner PTFE lining pipe; 2. Connecting flange; 201. Through hole; 202. Limiting hole; 3. Protective sleeve; 301. Connecting plate; 3011. Connecting hole; 4. Retaining ring; 401. Groove; 5. Controller; 501. Detector rod; 502. Alarm; 503. Signal transmitter; 6. Sealing strip. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1:

[0028] Please refer to Figures 1 to 6As shown, the steel-lined isostatic PTFE tube proposed in this utility model includes a protective outer steel tube 1, with an inner PTFE tube 101 inside the protective outer steel tube 1. A connecting flange 2 is installed at each of the left and right ends of the protective outer steel tube 1. It also includes a protective sleeve 3, a retaining ring 4, and a controller 5. Two sets of protective sleeves 3 are symmetrically arranged, with the two protective sleeves 3 arranged in an upper and lower structure. The main body of the protective sleeve 3 is a semi-circular structure. The two protective sleeves 3 are sleeved on the outside of the protective outer steel tube 1. A long strip-shaped connecting plate 301 is installed at each end of the protective sleeve 3. The retaining ring 4 is fixedly installed at the left and right ends of the inner end face of the protective sleeve 3. The retaining ring 4 is an arc-shaped structure. The controller 5 is fixedly installed on the outer end face of the lower protective sleeve 3. A probe rod 501 is fixedly installed on the upper end face of the controller 5. The probe rod 501 is located in the cavity between the protective sleeve 3 and the protective outer steel tube 1.

[0029] The connecting plate 301 has evenly spaced connecting holes 3011 on its surface. When the two protective sleeves 3 are joined together, the bolts pass through the connecting holes 3011 to fix the two protective sleeves 3 together. When the two protective sleeves 3 are joined together, the bolts pass through the connecting holes 3011 to firmly fix the two protective sleeves 3 together, forming a protective enclosure for the outer steel pipe 1.

[0030] The inner end face of the retaining ring 4 is fitted to the outer end face of the protective outer steel pipe 1. A groove 401 is formed on the inner end face of the retaining ring 4, and a sealing strip 6 is engaged inside the groove 401. The inner end of the sealing strip 6 is engaged in the groove 401 inside the retaining ring 4, and the outer end face of the sealing strip 6 has an arc-shaped structure. During use, the inner end of the sealing strip 6 is engaged in the groove 401 inside the retaining ring 4, and the outer end face has an arc-shaped structure. This sealing structure effectively prevents external impurities from entering the space between the protective sleeve 3 and the protective outer steel pipe 1, and also prevents leakage of internally transported materials from easily seeping out of this space.

[0031] An alarm 502 is installed on the right side of the controller 5, and a signal transmitter 503 is installed on the left side. The alarm 502 and the signal transmitter 503 are electrically connected to the controller 5. During use, when the controller 5 receives a leak signal from the sensor at the end of the detection rod 501, it will trigger the alarm 502 to sound an alarm, thus alerting on-site personnel to the pipeline leak. Simultaneously, the signal transmitter 503 will send a corresponding signal to a remote monitoring terminal, allowing relevant personnel to receive the leak signal and take timely countermeasures.

[0032] The connecting flange 2 has six through holes 201 evenly spaced in a ring on its surface, and six limiting holes 202 evenly spaced in a ring on its outer end face. The limiting holes 202 and the through holes 201 are arranged alternately. In use, the six through holes 201 on the surface of the connecting flange 2 allow workers to connect two steel-lined isostatic PTFE tubes by passing bolts through the through holes 201. When installing the two connecting flanges 2, the six limiting holes 202 on the outer end face of the connecting flange 2 allow workers to insert locating pins into the limiting holes 202, and then insert the other end of the locating pin into a limiting hole 202 on the surface of the other connecting flange 2. This allows for the positioning of the two connecting flanges 2. Example 2:

[0033] Based on Example 1, such as Figures 1-6 As shown, a detection rod 501 is installed on the front end of the controller 5. A sensor can be installed at the end of the detection rod 501. The sensor is electrically connected to the controller 5. Different substances will be transported inside the pipeline. Workers can change different types of sensors according to the substances transported inside the pipeline. So that when the substances inside the pipeline leak, the sensor at the end of the detection rod 501 can detect it and then transmit the signal to the controller 5.

[0034] In this invention, the steel-lined isostatic PTFE tube comprises a protective outer steel tube 1 and an inner PTFE-lined tube 101. The inner PTFE-lined tube 101 is fixedly installed inside the protective outer steel tube 1. The protective outer steel tube 1 provides outer protection and support, while the inner PTFE-lined tube 101 is used to transport the corresponding substances. A connecting flange 2 is installed at each of the left and right ends of the protective outer steel tube 1. Six through holes 201 are evenly distributed in a ring on the surface of the connecting flange 2. When connecting two steel-lined isostatic PTFE tubes, bolts can be passed through the through holes 201 to connect the two connecting flanges 2 together. When connecting the two connecting flanges 2, the six limiting holes 202 on the outer surface of the connecting flange 2 allow the worker to insert a positioning pin into the limiting holes 202, and then insert the other end of the positioning pin into the limiting hole 202 on the surface of the other connecting flange 2, thus achieving the positioning of the two connecting flanges 2. Two sets of protective sleeves 3 are symmetrically arranged, with the two protective sleeves 3 arranged in an upper and lower structure. They are fitted onto the outside of the protective outer steel pipe 1. A long strip-shaped connecting plate 301 is installed at each end of the protective sleeve 3. The surface of the connecting plate 301 is evenly provided with connecting holes 3011. When the two protective sleeves 3 are joined together, the bolt passes through the connecting holes 3011 and can firmly fix the two protective sleeves 3 together, forming a protective enclosure for the protective outer steel pipe 1. The retaining ring 4 is fixedly installed on the left and right ends of the inner end face of the protective sleeve 3. The retaining ring 4 has an arc-shaped structure, and its inner end face fits against the outer end face of the protective outer steel pipe 1. The inner end face of the retaining ring 4 has a groove 401, and a sealing strip 6 is engaged inside the groove 401. The inner end of the sealing strip 6 is engaged in the groove 401 inside the retaining ring 4. The outer end face has an arc-shaped structure. This sealing structure can effectively prevent external impurities from entering the space between the protective sleeve 3 and the protective outer steel pipe 1, and also prevent the internal conveyed material from easily seeping out of the space after leakage. In this way, a certain gap is formed between the protective sleeve 3 and the protective outer steel pipe 1.A controller 5 is fixedly installed on the outer end face of the protective sleeve 3. A detection rod 501 is fixedly installed on the upper end face of the controller 5. The detection rod 501 is located in the cavity between the protective sleeve 3 and the outer protective steel pipe 1. A sensor can be installed at the end of the detection rod 501. The sensor is electrically connected to the controller 5. When a leak occurs inside the pipeline, the leaked material will enter the cavity between the protective sleeve 3 and the outer protective steel pipe 1. At this time, the sensor at the end of the detection rod 501 can detect the leak and transmit the corresponding signal to the controller 5. An alarm 502 is installed on the right side of the controller 5, and a signal transmitter 503 is installed on the left side. The alarm 502 is electrically connected to the controller 5, and the signal transmitter 503 is electrically connected to the controller 5. When the controller 5 receives the leak signal transmitted from the sensor at the end of the detection rod 501, it will trigger the alarm 502 to sound an alarm, thereby alerting the on-site personnel that a pipeline leak has occurred. At the same time, the signal transmitter 503 will send a corresponding signal outward, so that remote monitoring terminals can receive the signal of the pipeline leak, thereby enabling relevant personnel to take further countermeasures in a timely manner. The protective sleeve prevents material leakage and reduces safety hazards. The through-hole and limiting hole facilitates alignment of the flange through-holes of two steel-lined isostatic PTFE pipes, making pipe connection and installation easier.

[0035] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient indicators of all components are based on their own technologies; any method that achieves the desired beneficial effect can be implemented. The controller 5, detector rod 501, alarm 502, and signal transmitter 503 mentioned above are all common commercially available components. Upon purchase and use, simply follow the instruction manual provided; therefore, further details are omitted here.

[0036] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A steel-lined isostatic PTFE tube, comprising a protective outer steel tube (1), wherein the protective outer steel tube (1) is internally lined with a PTFE tube (101), and a connecting flange (2) is respectively installed at the left and right ends of the protective outer steel tube (1), characterized in that, It also includes a protective sleeve (3), a retaining ring (4) and a controller (5). The protective sleeve (3) is symmetrically arranged in two sets. The two protective sleeves (3) are arranged in an upper and lower structure. The main body of the protective sleeve (3) is a semi-circular structure. The two protective sleeves (3) are sleeved on the outside of the protective outer steel pipe (1). A long strip-shaped connecting plate (301) is installed at each end of the protective sleeve (3). The retaining ring (4) is fixedly installed on the left and right ends of the inner end face of the protective sleeve (3). The retaining ring (4) is an arc-shaped structure. The controller (5) is fixedly installed on the outer end face of the lower protective sleeve (3). A probe rod (501) is fixedly installed on the upper end face of the controller (5). The probe rod (501) is located in the cavity between the protective sleeve (3) and the protective outer steel pipe (1).

2. The steel lined isostatic pressed PTFE tube according to claim 1, characterized in that, The surface of the connecting plate (301) is uniformly provided with connecting holes (3011). When the two protective sleeves (3) are joined together, the bolt passes through the connecting hole (3011) and fixes the two protective sleeves (3) together.

3. The steel lined isostatic pressed PTFE tube of claim 1, wherein, The inner end face of the retaining ring (4) is in contact with the outer end face of the protective outer steel pipe (1). The inner end face of the retaining ring (4) is provided with a groove (401), and a sealing strip (6) is snapped into the inside of the groove (401).

4. The steel lined isostatic pressed PTFE tube according to claim 3, characterized in that, The inner end of the sealing strip (6) is engaged in the groove (401) inside the retaining ring (4), and the outer end of the sealing strip (6) is divided into an arc-shaped structure.

5. The steel lined isostatic pressed PTFE tube of claim 1 wherein, An alarm (502) is installed on the right side of the controller (5), and a signal transmitter (503) is installed on the left side of the controller (5). The alarm (502) is electrically connected to the controller (5), and the signal transmitter (503) is electrically connected to the controller (5).

6. The steel-lined isostatic PTFE tube according to claim 1, characterized in that, The surface of the connecting flange (2) is provided with six through holes (201) in a ring shape, and the outer end face of the connecting flange (2) is provided with six limiting holes (202) in a ring shape. The limiting holes (202) and the through holes (201) are arranged in an alternating structure.

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