CN114274429B - Ultraviolet curing device for annular sample of lining tube and application - Google Patents

Abstract

The invention provides an ultraviolet curing device for a liner tube annular sample and application thereof. The device comprises a fixing piece, a first cylinder film, a second cylinder film, an ultraviolet lamp, a controller, an air compressor and a traction mechanism, and can directly solidify and mold an annular sample of the lining hose, so that the annular sample of the lining is very convenient to manufacture; the sample that the device made is more regular, and its performance more closely practical, has reduced the error that sample irregularity or experimental condition difference brought. The device is used for preparing the lining ring-shaped sample, is particularly suitable for manufacturing a ring rigidity performance test sample when an ultraviolet curing hose is researched, can be cut into a segment shape for a bending performance test sample, and can be used for analyzing the influence of a material structure on the mechanical property of the cured lining pipe. The method simulates the field operation of the lining hose in the pipeline, reduces the performance deviation of the sample before and after construction, and is more beneficial to construction.

Description

An ultraviolet curing device and application of a ring-shaped sample of an inner liner

technical field

The invention relates to the technical field of repairing underground pipelines, in particular to an ultraviolet curing device and application of an inner lining pipe annular sample.

Background technique

With the strengthening of our society's attention to urban underground pipeline networks, trenchless pipeline repair technology has gradually been widely used in China. Among them, the UV curing lining repair technology has gradually become the mainstream technology of the current trenchless repair due to its advantages of safe and reliable construction and high material strength. At the same time, my country's research on UV curing lining repair technology, especially the material properties of UV curing lining pipes, has gradually deepened.

However, when studying the performance of the UV-cured liner, it is often necessary to make multiple ring samples for experimental research. If the existing UV curing construction equipment and technology are used to make ring samples on the ground, it is necessary to prepare a long UV curing hose each time, which is costly, wastes a lot of materials, and takes a long time. The development of experimental research.

Contents of the invention

The object of the present invention is to propose an ultraviolet curing device and application of a ring-shaped sample of a lining pipe, aiming at the above-mentioned deficiencies of the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

An ultraviolet curing device and application of a ring-shaped sample of an inner lining pipe according to the present invention, the device includes a fixing piece, a first tube film, a second tube film, an ultraviolet lamp, a controller, an air compressor and a traction mechanism, the The second tubular membrane is arranged inside the first tubular membrane, the fixing member is arranged outside the first tubular membrane for fixing the first tubular membrane, the two ends of the second tubular membrane are open, The openings are all provided with a sealing assembly for sealing it, and the ultraviolet light lamp is arranged inside the second tube film; the traction mechanism passes through any one of the sealing assemblies and is connected to the ultraviolet light lamp, so The traction mechanism drives the ultraviolet light lamp to move horizontally in the second tube film; the cable of the ultraviolet light lamp passes through any one of the sealing components to connect with the controller, and the air supply of the air compressor The pipeline communicates with the inside of the second tube membrane through any one of the sealing components.

Further, the sealing assembly includes a sealing end, a sealing rubber ring and two sealing bands, two sealing annular grooves are arranged on the sealing end, and the sealing rubber ring is sleeved on the sealing end On the outer surface of the body, the positions where the two sealing bandages are wound correspond to the two sealing annular grooves respectively.

Further, a camera is provided at one end of the sealing end located in the second tube membrane, and a cable of the camera is electrically connected to the controller.

Further, the traction mechanism includes a traction rope and at least one set of lamps, and each set of lamp stands includes two brackets, one of the ultraviolet lamps is fixed between the two brackets, and the brackets include support rods and two two support wheels, and the two support wheels are respectively arranged at the two ends of the support rod.

Further, the first tubular film is a non-extensible bagging.

Further, the second tube film is an extensible high temperature resistant transparent tube film.

Further, the fixing member is composed of two semicircular steel pipes with adjustable diameters.

The present invention also provides the use of the above-mentioned ultraviolet curing device for the annular sample of the inner liner to prepare the annular sample of the inner liner, and the specific steps are as follows:

S1: Sample interception: intercept a section of resin-impregnated inner hose according to the preset size;

S2: sample fixing: set the liner hose intercepted in step S1 on the outside of the second tube membrane;

S3: sample sealing: bind the two ends of the second cylinder membrane tightly with a sealing component;

S4: Inflation: turn on the air compressor to inflate the second cylinder membrane through the air supply pipe;

S5: UV curing: drive the UV lamp to the bottom of the lining hose through the traction mechanism, turn on the controller, and the UV lamp starts to work, so that the lining hose is cured into a ring shape.

The beneficial effects brought by the technical scheme provided by the invention are:

(1) An ultraviolet curing device for a ring-shaped sample of a lining pipe provided by the present invention includes a fixing piece, a first tube film, a second tube film, an ultraviolet lamp, a controller, an air compressor and a traction mechanism, and the second The tubular membrane is arranged inside the transparent tubular membrane, and the fixing part is arranged outside the transparent tubular membrane for fixing the first tubular membrane. The two ends of the second tubular membrane are open, and the openings are provided with sealing components for sealing it. It can directly solidify and form the ring-shaped sample of the lining hose, which makes the production of the ring-shaped sample of the lining very convenient; the sealing component is easy to bind, the ultraviolet light is easy to put in, and there is no need to configure sealing components of multiple specifications. The produced samples are more regular, and their performance is closer to the actual application, which reduces the errors caused by irregular samples or differences in experimental conditions.

(2) The present invention adopts the ultraviolet curing device of the inner liner ring sample to prepare the inner lining ring sample, which is especially suitable for the production of the ring stiffness performance test sample when the ultraviolet curing hose is researched, and it can also be cut at the same time The tube sheet is used for bending performance test samples, and can also analyze the influence of material structure on the mechanical properties of the inner liner after curing. This method simulates the on-site operation of the lined hose in the pipeline, reduces the deviation of sample performance before and after construction, and is more conducive to construction.

Description of drawings

Fig. 1 is a structural schematic diagram of an ultraviolet curing device for a ring-shaped sample of a lining pipe according to the present invention.

1. Fixing piece; 2. First tube membrane; 3. Second tube membrane; 4. Sealing component; 41. Sealing end; 411. Camera; 42. Sealing rubber ring; 43. Sealing strap; 44. Sealing ring Groove; 5. Ultraviolet lamp; 6. Controller; 7. Air compressor; 71. Air supply pipeline; 8. Traction mechanism; 81. Traction rope; 82. Light stand; 821. Bracket; 823, support wheel.

Detailed ways

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

As shown in Figure 1, the present invention provides an ultraviolet curing device for a ring-shaped sample of a lined pipe, which device includes a fixture 1, a first tube film 2, a second tube film 3, an ultraviolet lamp 5, and a controller 6 , air compressor 7 and traction mechanism 8, the second tube membrane 3 is arranged in the first tube membrane 2, and the fixing part 1 is arranged outside the first tube membrane 2, for fixing the first tube membrane 2, the second tube membrane 3 Both ends of the opening are open, and the opening is provided with a sealing assembly 4 for sealing it, and the ultraviolet lamp 5 is arranged inside the second tube film 3; the traction mechanism 8 runs through any sealing assembly 4 and is connected with the ultraviolet lamp 5 , the traction mechanism 8 drives the ultraviolet lamp 5 to move horizontally in the second tube film 3; the cable of the ultraviolet lamp 5 runs through any sealing assembly 4 to connect with the controller 6, and the air supply pipe 71 of the air compressor 7 passes through any A sealing assembly 4 communicates with the inside of the second tube membrane 3 . The device can directly solidify and form the ring-shaped sample of the lining hose, which makes the production of the ring-shaped sample of the lining very convenient; the sealing assembly is easy to bind, the ultraviolet light is easy to put in, and there is no need to configure sealing assemblies of multiple specifications. The samples produced by the device are more regular, and its performance is closer to practical application, which reduces errors caused by irregular samples or differences in experimental conditions.

In order to prevent the second cylinder membrane 3 from leaking, there are various structures of the sealing assembly 4, which are not limited here. In this embodiment, the sealing assembly 4 may include a sealing end 41, a sealing rubber ring 42 and two sealing straps 43 , the sealing end 41 is provided with two sealing annular grooves 44, the sealing rubber ring 42 is sleeved on the outer surface of the sealing end 41, and the positions where the two sealing bandages 43 are wound are respectively connected with the two sealing annular grooves. 44 one-to-one correspondence. The arrangement of the sealing annular groove 44 can ensure that the sealing bandage is bound firmly and prevent the sealing end 41 from falling off. The setting of the sealing rubber ring 42 can prevent damage to the extensible and high-temperature-resistant second tube membrane 3 during the binding process, and at the same time ensure the sealing effect.

In order to effectively monitor the inflation in the second tube membrane 3 , a camera 411 is provided at one end of the sealing end 41 in this embodiment located in the second tube membrane 3 , and the cable of the camera 411 is electrically connected to the controller 6 .

In order to better stabilize the ultraviolet light lamp 5, the structure of the traction mechanism 8 has various types, which are not limited here. In this embodiment, the traction mechanism 8 includes a traction rope 81 and at least one set of lamp holders 82, and each group of lamp holders 82 Including two brackets 821, one of the ultraviolet lamps 5 is fixed between the two brackets 821, each bracket 821 includes a support rod 822 and two support wheels 823, and the two support wheels 823 are respectively arranged at the two ends of the support rod 822 . The ultraviolet lamp 5 is driven to move in the second tube film 3 by pulling the traction rope 81 .

In order to prevent the second tube membrane 3 from bursting and the sealing assembly 4 from falling off, the first tube membrane 2 in this embodiment can be a non-extensible bag, and in other implementations it can also be made of high-strength canvas or PVC sandwich cloth , can be made into a sleeve shape by sewing, welding or adding chains.

In order to better simulate the on-site preparation of the lining ring sample, the second cylindrical film 3 in this embodiment is an extensible high-temperature-resistant transparent cylindrical film, and the extensible high-temperature-resistant transparent film can be a directly formed cylindrical film or a spliced cylindrical film. Its material can be high temperature resistant plastic film, also can be high temperature resistant transparent rubber film.

In order to match the lining ring samples of different sizes, the fixing part 1 in this embodiment can be composed of two semicircular steel pipes with adjustable diameters.

The ultraviolet curing device of the inner liner ring sample as shown in Figure 1 is used to prepare the inner liner ring sample, and the specific steps are as follows:

Step S1, sample interception: intercept a section of resin-impregnated lined hose according to the preset size;

Step S2, sample fixing: sleeve the liner hose intercepted in step S1 on the outside of the second cylindrical membrane (3);

Step S3, sample sealing: use a sealing assembly (4) to bind both ends of the second tube membrane (3) tightly;

Step S4, inflation: turn on the air compressor (7) to inflate the second tube membrane (3) through the air supply pipeline (71);

Step S5, UV curing: Drive the UV lamp (5) to the bottom of the lining hose through the traction mechanism (8), turn on the controller (6), and the UV lamp (5) starts to work, so that the lining hose is cured into a ring shape.

In order to better illustrate the effect of the ultraviolet curing device for the inner liner ring sample of the present invention to prepare the inner liner ring sample, the following is the prepared specific inner liner ring sample and the liner ring sample prepared by field operation Performance comparison analysis.

Take 0.5m of DN300, DN400, and DN500 UV curing hoses prefabricated in the factory, use the method of the present invention to make ring samples of corresponding specifications and cut them into tubes to test the flexural modulus, flexural strength, compactness and other indicators , material waste is avoided in the production process, and time is saved; with on-site construction equipment and methods, samples of various specifications must be made with 5m long hoses, and the installation and curing time is relatively long. The performance of samples tested by the method of the present invention is The performance comparison with the field sampling test is shown in Table 1 below:

Table 1.

As can be seen from Table 1, the performance test index of the ring-shaped sample of the liner prepared by the method of the present invention has little deviation from the performance test index of the sampling sample for field construction. Therefore, the ring-shaped sample of the liner prepared by this method meets the requirements of the field operation .

What is not mentioned above is applicable to the prior art.

Although some specific embodiments of the present invention have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, rather than for limiting the scope of the present invention. Various modifications or additions or similar substitutions can be made to the described specific embodiments without departing from the direction of the present invention or exceeding the scope defined by the appended claims. Those skilled in the art should understand that any modifications, equivalent replacements, improvements, etc. made to the above implementations based on the technical essence of the present invention shall be included in the protection scope of the present invention.

Claims (4)

1. An ultraviolet curing device for a ring-shaped sample of an inner liner, characterized in that it includes a fixing part (1), a first tube film (2), a second tube film (3), an ultraviolet lamp (5), a control device (6), air compressor (7) and traction mechanism (8), the second tube membrane (3) is set in the first tube membrane (2), and the fixing part (1) is set in the Outside the first tube membrane (2), it is used to fix the first tube membrane (2), and the two ends of the second tube membrane (3) are open, and the openings are provided with seals for sealing it assembly (4), the ultraviolet light lamp (5) is arranged inside the second tube film (3); the traction mechanism (8) runs through any one of the sealing assembly (4) and the ultraviolet light lamp (5) connection, the traction mechanism (8) drives the ultraviolet lamp (5) to move horizontally in the second tube film (3); the cable of the ultraviolet lamp (5) runs through any one of the The sealing assembly (4) is connected to the controller (6), and the air supply pipe (71) of the air compressor (7) passes through any one of the sealing assembly (4) and the second cylinder membrane ( 3) The internal connection; The fixing part (1) is composed of two semicircular steel pipes with adjustable diameter; The sealing assembly (4) includes a sealing end (41), a sealing rubber ring (42) and two sealing straps (43), and the sealing end (41) is provided with two sealing annular grooves ( 44), the sealing rubber ring (42) is sleeved on the outer surface of the sealing end (41), and the positions where the two sealing straps (43) are wound are respectively connected with the two sealing ring grooves (44) one-to-one correspondence; A camera (411) is provided at one end of the sealing end (41) located in the second tube membrane (3), and a cable of the camera (411) is electrically connected to the controller (6); The traction mechanism (8) includes a traction rope (81) and at least one set of light stands (82), each set of light stands (82) includes two brackets (821), between the two brackets (821) One of the ultraviolet lamps (5) is fixed, the bracket (821) includes a support rod (822) and two support wheels (823), and the two support wheels (823) are respectively arranged on the support rod (822) ) at both ends. 2. the ultraviolet curing device of a kind of liner pipe annular sample as claimed in claim 1, its The feature is that: the first tube film (2) is a non-extensible bagging. 3. the ultraviolet curing device of a kind of liner pipe annular sample as claimed in claim 1, its It is characterized in that: the second tubular film (3) is an extensible, high-temperature resistant and transparent tubular film. 4. An application of an ultraviolet curing device for an annular sample of a liner, characterized in that, the annular sample of an inner liner is prepared by an ultraviolet curing device for an annular sample of an inner liner as claimed in any one of claims 1-3. Sample, the specific steps are as follows: S1: Sample interception: intercept a section of resin-impregnated inner hose according to the preset size; S2: sample fixation: sleeve the liner hose intercepted in step S1 on the outside of the second tube membrane (3); S3: sample sealing: use the sealing component (4) to bind the two ends of the second tube membrane (3) tightly; S4: Inflation: Turn on the air compressor (7) to inflate the second cylinder membrane (3) through the air supply pipe (71); S5: UV curing: drive the UV lamp (5) to the bottom of the lining hose through the traction mechanism (8), turn on the controller (6), and the UV lamp (5) starts to work, so that the lining hose is cured into a ring shape .

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