Electric melting direct pipe fitting with melting pressure and melting temperature detection device in melting zone

Abstract

The utility model provides an electric melting direct pipe fitting with a melting pressure and melting temperature detection device in a melting zone, which relates to the technical field of electric melting pipe fittings, and comprises a pipe fitting main body, two pipe fitting wire distribution melting zones respectively arranged at two ends of the inner wall of the pipe fitting main body, and a wiring structure and an observation column which are arranged on the outer wall of the pipe fitting main body and correspond to the pipe fitting wire distribution melting zones; the outer wall of the pipe fitting main body is further provided with a melting zone detection mechanism for detecting the melting pressure and the melting temperature of the pipe fitting wire distribution melting zones, and the two ends of the melting zone detection mechanism are arranged on the pipe fitting main body respectively and correspond to the positions of the two pipe fitting wire distribution melting zones respectively. The melt pressure and the actual welding temperature in the pipe fitting wire distribution melting zone are detected in real time through the melting zone detection mechanism, and the welding quality and the welding stability are guaranteed in combination with an observation column. The technical problem that in the prior art, in the electric melting pipe fitting welding process, limitation exists when the overall welding effect is judged by observing the protruding state of a column in the welding process is solved.

Description

Technical Field

[0001] This utility model relates to the field of electrofusion pipe fittings technology, and in particular to an electrofusion direct pipe fitting with a melting zone detection device for melting pressure and melting temperature. Background Technology

[0002] To meet the rapid installation requirements of steel wire mesh reinforced pipes and water supply pipes, electrofusion direct pipe fittings are formed by combining injection-molded pipe blanks with resistance wire. Programmable welding is used: a type of plastic (polyethylene) pipe fitting that melts and connects through the temperature generated by the current. Welding is performed using constant pressure or constant current welding (i.e., controlling the welding pressure, welding current, and welding time to control the welding progress). In polyethylene piping systems, approximately 15% to 20% are pipe fittings. Polyethylene piping system fittings are mainly divided into two types: hot-melt fittings and electrofusion fittings. Due to price considerations, hot-melt fittings are used more frequently in engineering applications than electrofusion fittings. However, electrofusion fittings play an important and irreplaceable role in engineering and maintenance, especially during construction, where they are less affected by external environmental and human factors, thus offering better reliability and being more popular with users.

[0003] However, in the process of electrofusion pipe welding, judging the overall welding effect by controlling the welding parameters in sections and observing the bulging state of the column during the welding process has limitations: first, it is impossible to observe the fusion status between the pipe fitting fusion zone and the outer surface of the pipe through data; second, it is impossible to accurately judge the internal cooling status after fusion, thus affecting the welding time and the evaluation of the welding effect.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an electrofusion direct pipe fitting with a melting zone pressure and temperature detection device, so as to at least solve one of the technical problems in the prior art that the overall welding effect is limited by controlling the welding parameters in sections and observing the bulging state of the column during the welding process.

[0006] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted:

[0007] This utility model provides an electrofusion direct pipe fitting with a melting zone detection device for melting pressure and melting temperature, including a pipe fitting body, two pipe fitting wire-laying melting zones respectively disposed at both ends of the inner wall of the pipe fitting body, a wiring structure and an observation column disposed on the outer wall of the pipe fitting body corresponding to the pipe fitting wire-laying melting zones;

[0008] The outer wall of the pipe fitting body is also provided with a melting zone detection mechanism for detecting the melting pressure and melting temperature of the pipe fitting wire melting zone. The two ends of the melting zone detection mechanism are respectively set on the pipe fitting body and correspond to the positions of the two pipe fitting wire melting zones.

[0009] Furthermore, the melting zone detection mechanism is an integrated temperature and pressure detection mechanism;

[0010] The melting zone detection mechanism includes a transmitter instrument, a melting temperature detection component connected to one end of the transmitter instrument, and a melting pressure detection component connected to the other end of the transmitter instrument. The melting temperature detection component is set on the pipe body and corresponds to the position of the pipe fitting wire melting zone at one end. The melting pressure detection component is set on the pipe body and corresponds to the position of the pipe fitting wire melting zone at the other end.

[0011] Furthermore, the melting temperature detection component includes a temperature sensor for sensing the internal melting temperature during the welding process and wiring for transmitting the temperature sensing signal. One end of the temperature sensor is mounted on the pipe body, and the other end is connected to a transmitter instrument via wiring.

[0012] Furthermore, the fusion pressure detection assembly includes a transmitter pressure sensor for detecting the fusion pressure at the fusion zone position during welding. One end of the transmitter pressure sensor is mounted on the pipe body, and the other end is connected to a transmitter instrument.

[0013] Furthermore, the outer wall of the pipe body is provided with two reserved holes, which correspond to the two wire melting zones of the pipe body respectively; the temperature sensor is located in one of the reserved holes, and the transmitter pressure sensor is located in the other reserved hole.

[0014] Furthermore, the wiring structure includes a pipe fitting terminal hole and a terminal set inside the pipe fitting terminal hole for connecting a welding machine.

[0015] Furthermore, the terminal block is a copper terminal block.

[0016] Furthermore, the temperature sensor's detection melting temperature is ≤250℃;

[0017] The pressure sensor of the transmitter has a detection pressure of ≤40MPa.

[0018] Furthermore, the wire weaving zone of the pipe fitting includes a wire groove and a resistance wire embedded in the wire groove.

[0019] Furthermore, the main body of the pipe fitting is made of resin material.

[0020] This utility model provides an electrofusion direct pipe fitting with a melting zone pressure and temperature detection device. During the welding process, the melting zone detection mechanism monitors the melt pressure and actual welding temperature inside the wire-laying melting zone of the pipe fitting in real time, and combined with the observation column, it ensures welding quality and stability. This solves the technical problem in the prior art where judging the overall welding effect by the protrusion state of the observation column during welding is limited. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of an electrofusion direct pipe fitting with a melting zone pressure and temperature detection device provided in Embodiment 1 of this utility model;

[0023] Figure 2 This is a schematic cross-sectional view of an electrofusion direct pipe fitting for a melting zone pressure and temperature detection device provided in Embodiment 1 of this utility model.

[0024] Icons: 1-Fitting zone of pipe fitting; 2-Fitting wall; 3-Fitting terminal hole; 4-Terminal; 5-Temperature sensor; 6-Wiring; 7-Transmitter instrument; 8-Observation column; 9-Fitting body; 10-Transmitter pressure sensor; 11-Pre-drilled hole. Detailed Implementation

[0025] Unless otherwise defined herein, the scientific and technical terms used in connection with this utility model shall have the meanings commonly understood by one of ordinary skill in the art. The meaning and scope of terms shall be clear; however, in any case of potential ambiguity, the definitions provided herein shall prevail over any dictionary or foreign definitions. In this application, unless otherwise stated, the use of "or" means "and / or". Furthermore, the use of the term "comprising" and other forms is non-limiting.

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this utility model, it should be noted that the terms "proximal end," "distal end," "front end," "rear end," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] The terms "horizontal" and "vertical" do not imply that a component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] This utility model provides an electrofusion direct pipe fitting with a melting zone detection device for melting pressure and melting temperature, including a pipe fitting body 9, two pipe fitting wire melting zones 1 respectively disposed at both ends of the inner wall of the pipe fitting body 9, a wiring structure and an observation column 8 disposed on the outer wall of the pipe fitting body 9 corresponding to the pipe fitting wire melting zones 1.

[0033] The outer wall of the pipe body 9 is also provided with a melting zone detection mechanism for detecting the melting pressure and melting temperature of the pipe filament melting zone 1. The two ends of the melting zone detection mechanism are respectively set on the pipe body 9 and correspond to the positions of the two pipe filament melting zones 1.

[0034] During the welding process, the melt pressure and actual welding temperature inside the wire-laying melt zone 1 of the pipe fitting are monitored in real time by a melt zone detection mechanism, combined with the observation column 8, to ensure welding quality and stability. This solves the technical problem in the prior art where judging the overall welding effect by observing the protrusion state of the observation column 8 during welding is limited.

[0035] In some specific embodiments, the melting zone detection mechanism is an integrated temperature and pressure detection mechanism; the melting zone detection mechanism includes a transmitter instrument 7, a melting temperature detection component connected to one end of the transmitter instrument 7, and a melting pressure detection component connected to the other end of the transmitter instrument 7. The melting temperature detection component is set on the pipe body 9 and corresponds to the position of the pipe fitting wire molten zone 1 at one end. The melting pressure detection component is set on the pipe body 9 and corresponds to the position of the pipe fitting wire molten zone 1 at the other end.

[0036] The integrated temperature and pressure detection mechanism enables real-time monitoring of internal weld melt pressure and welding temperature during integrated programmable welding parameter adjustment. This allows for control of overall welding quality and efficiency, and provides technical parameter guidance for subsequent improvements in welding efficiency. This solves the technical problem of limitations in existing electrofusion pipe fitting welding technologies that rely on segmented control of welding parameters to manage overall welding quality and efficiency.

[0037] Among them, the integrated temperature and pressure detection mechanism is an integrated temperature and pressure transmitter, which can be a 4G wireless integrated temperature and pressure transmitter in a split type.

[0038] In some specific embodiments, the melting temperature detection component includes a temperature sensor 5 for sensing the internal melting temperature during the welding process and a wiring 6 for transmitting the temperature sensing signal. One end of the temperature sensor 5 is disposed on the pipe body 9, and the other end is connected to the transmitter instrument 7 through the wiring 6.

[0039] In some specific embodiments, the fusion pressure detection assembly includes a transmitter pressure sensor 10 for detecting the fusion pressure at the fusion zone position during welding. One end of the transmitter pressure sensor 10 is mounted on the pipe body 9, and the other end is connected to the transmitter instrument 7.

[0040] Temperature sensor 5 and transmitter pressure sensor 10 can detect the internal melting pressure and temperature in real time. During the welding process, they can detect the internal melt pressure and actual welding temperature to ensure welding quality and welding stability.

[0041] In some specific embodiments, the outer wall of the pipe body 9 is provided with two reserved holes 11, and the two reserved holes 11 correspond to the two pipe wire melting zones 1 respectively; the temperature sensor 5 is located in one of the reserved holes 11, and the transmitter pressure sensor 10 is located in the other reserved hole 11.

[0042] At the molten zone 1 of the pipe fittings on both sides, a pre-drilled hole 11 is made in the mold at position 9 of the main body of the pipe fitting during injection molding to facilitate the installation of the integrated temperature and pressure detection mechanism later. During the injection molding process, a temperature sensor 5, a transmitter pressure sensor 10, and a wiring terminal are added to the molten zone. After the blank is cooled for 48 hours after injection molding, a matching digital display electronic meter is installed to detect changes in internal pressure and temperature during the welding process.

[0043] In some specific embodiments, the wiring structure includes a pipe fitting terminal hole 3 and a terminal 4 disposed in the pipe fitting terminal hole 3 for connecting a welding machine.

[0044] In some specific implementations, the terminal 4 is a copper terminal.

[0045] In some specific embodiments, the temperature sensor 5 detects a melting temperature ≤250℃.

[0046] In some specific embodiments, the detection pressure of the transmitter pressure sensor 10 is ≤40MPa.

[0047] In some specific embodiments, the pipe fitting wire fusion zone 1 includes a wire groove and a resistance wire embedded in the wire groove.

[0048] In some specific embodiments, the main body 9 of the pipe fitting is made of resin material.

[0049] The resin material can be polyethylene PE100 grade resin material, which is corrosion resistant, has good flexibility and impact resistance, excellent impact resistance, and a long service life.

[0050] The present invention will be further illustrated below through embodiments. Unless otherwise specified, the materials in the embodiments are prepared according to existing methods or purchased directly from the market.

[0051] Example 1

[0052] Combination Figure 1 and Figure 2 This document describes an electrofusion direct pipe fitting with a melting zone pressure and temperature detection device. It includes a pipe fitting body 9, two pipe fitting wire-laying melting zones 1 located at both ends of the inner wall of the pipe fitting body 9, a wiring structure corresponding to the two wire-laying melting zones 1 and an observation post 8 located on the outer wall of the pipe fitting body 9. The pipe fitting body 9 is made of polyethylene (PE100) grade resin. The wire-laying melting zones 1 are located on the inner side of the pipe fitting wall 2.

[0053] The pipe fitting wire fusion zone 1 includes a wire groove and a resistance wire embedded in the wire groove.

[0054] The outer wall of the pipe fitting body 9 is also equipped with a temperature and pressure integrated detection mechanism for detecting the melting pressure and melting temperature of the pipe fitting filament melting zone 1. In this embodiment, the temperature and pressure integrated detection mechanism is a temperature and pressure integrated transmitter, which is a 4G wireless temperature and pressure integrated transmitter split type, model: YD-221W-Y-GTP.

[0055] The melting zone detection mechanism includes a transmitter instrument 7, a melting temperature detection component connected to one end of the transmitter instrument 7, and a melting pressure detection component connected to the other end of the transmitter instrument 7. The transmitter instrument 7 is a digital display electronic instrument.

[0056] The melting temperature detection assembly includes a temperature sensor 5 for sensing the internal melting temperature during the welding process and a wiring 6 for transmitting the temperature sensing signal. One end of the temperature sensor 5 is set on the pipe body 9, and the other end is connected to the transmitter instrument 7 through the wiring 6.

[0057] The fusion pressure detection assembly includes a transmitter pressure sensor 10 for detecting the fusion pressure at the fusion zone position during welding. One end of the transmitter pressure sensor 10 is mounted on the pipe body 9, and the other end is connected to the transmitter instrument 7.

[0058] The temperature sensor 5 has a detection melting temperature ≤ 250℃; the transmitter pressure sensor 10 has a detection melting pressure ≤ 40MPa.

[0059] Two reserved holes 11 are provided on the outer wall of the main body 9 of the pipe fitting. The two reserved holes 11 correspond to the two pipe fitting wire melting zones 1 respectively. The temperature sensor 5 is located in one of the reserved holes 11, and the transmitter pressure sensor 10 is located in the other reserved hole 11.

[0060] The wiring structure includes a pipe fitting terminal hole 3 and a terminal 4 set inside the pipe fitting terminal hole 3 for connecting the welding machine.

[0061] Among them, terminal 4 is a brass structure with an aluminum gasket.

[0062] Example 2

[0063] The forming process of the electrofusion direct pipe fitting provided in Example 1 includes the following steps:

[0064] 1) The injection-molded blank pipe body 9 is located in the melting zone on both sides. During injection molding, a pre-reserved hole 11 is opened in the mold at the position of the pipe body 9;

[0065] 2) The wire-laying melting zone 1 of the pipe fittings is produced using a post-wire-laying process with copper wire;

[0066] 3) During the injection molding process, a temperature sensor 5 and a transmitter pressure sensor 10, along with their connectors, are added to the melt zone. After the blank has cooled for 48 hours after injection molding, a matching digital display electronic meter is installed and connected to the internal pressure and temperature sensor of the pipe fitting.

[0067] Among them, the copper content of the copper wire is ≥99%.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electrically fused direct pipe of a fusion zone belt fusion pressure fusion temperature detection device, characterized by, The pipe body (9) is provided with two pipe wire distribution melting zones (1) on the inner wall of the pipe body (9), a wiring structure and an observation column (8) are arranged on the outer wall of the pipe body (9) corresponding to the pipe wire distribution melting zones (1). The outer wall of the pipe body (9) is further provided with a melting zone detection mechanism for detecting the melting pressure and temperature of the pipe wire distribution melting zone (1), and the two ends of the melting zone detection mechanism are arranged on the pipe body (9) and correspond to the positions of the two pipe wire distribution melting zones (1) respectively.

2. The electrofusion direct pipe of claim 1, wherein, The melting zone detection mechanism is a temperature and pressure integrated detection mechanism. The melting zone detection mechanism comprises a transmitter instrument (7), a melting temperature detection assembly connected to one end of the transmitter instrument (7), and a melting pressure detection assembly connected to the other end of the transmitter instrument (7), the melting temperature detection assembly is arranged on the pipe body (9) corresponding to the position of the pipe wire distribution melting zone (1) at one end, and the melting pressure detection assembly is arranged on the pipe body (9) corresponding to the position of the pipe wire distribution melting zone (1) at the other end.

3. The electrofusion direct pipe according to claim 2, wherein, The melting temperature detection assembly comprises a temperature sensor (5) for sensing the internal melting temperature during the welding process and a wire (6) for transmitting the temperature sensing signal, one end of the temperature sensor (5) is arranged on the pipe body (9), and the other end is connected to the transmitter instrument (7) through the wire (6).

4. The electrofusion direct pipe according to claim 3, wherein, The melting pressure detection assembly comprises a transmitter pressure sensor (10) for detecting the melting pressure of the melting zone position during the welding process, one end of the transmitter pressure sensor (10) is arranged on the pipe body (9), and the other end is connected to the transmitter instrument (7).

5. The electrofusion direct pipe of claim 4, wherein, The outer wall of the pipe body (9) is provided with two reserved holes (11), and the two reserved holes (11) correspond to the two pipe wire distribution melting zones (1) respectively; the temperature sensor (5) is located in one of the reserved holes (11), and the transmitter pressure sensor (10) is located in the other reserved hole (11).

6. The electrofusion direct pipe of claim 5, wherein, The wiring structure comprises a pipe wiring column hole (3) and a wiring column (4) arranged in the pipe wiring column hole (3) for connecting the welding machine.

7. The electrofusion direct pipe of claim 6, wherein, The wiring column (4) is a copper column.

8. The electrofusion direct pipe of claim 7, wherein, The detection melting temperature of the temperature sensor (5) is ≤250℃; The detection melting pressure of the transmitter pressure sensor (10) is ≤40MPa.

9. An electrofusion direct pipe according to any one of claims 1 to 8, characterised in that, The pipe wire distribution melting zone (1) comprises a wire distribution groove and a resistance wire embedded in the wire distribution groove.

10. The electrofusion direct pipe of claim 9, wherein, The material of the pipe body (9) is resin material.

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