Curing adhesive adjusting and implementing process for electric power construction site
Patent Information
- Application Number
- CN202411805889.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2044-12-10
AI Technical Summary
At the construction site, when the cable hole structure is complex or long and deep, the expansion performance and sealing effect of the rapid cable foaming fire-resistant curing adhesive are not ideal, resulting in construction difficulties.
Using electric glue punching machine and controllable foaming and curing equipment, the electromagnetic heater and electromagnetic device are activated alternately, and the foaming and curing speed of the cured glue is controlled by magnetic field induction heating and magnetic vibration, combining with fragmented glass fiber mesh and Gas storage particles realize uniform heating and stirring of colloids, and promote chemical reactions to form a three-dimensional crosslinked structure.
The controlled foaming and rapid curing of the cured glue is achieved, the sealing effect and construction efficiency are improved, and the uniform sealing and fire resistance of cable holes are ensured.
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Figure CN119286470A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of electric power engineering, and in particular to a process technology for implementing curing glue. Background Art
[0002] Rapid cable foaming fireproof curing adhesive is a material used to fill and seal cable holes through walls or floors. It is able to expand in the event of a fire to form a fire barrier, preventing the spread of fire and smoke penetration. This technology plays an important role in construction and electrical engineering, especially in improving the fire safety performance of buildings.
[0003] A polyester material modified with silicone forms a fast-foaming fireproof and waterproof curing adhesive for power cables. This curing adhesive, while maintaining the excellent properties of the original polyester, significantly improves its high temperature resistance, weather resistance and chemical corrosion resistance through the introduction of silicone. In addition, inorganic environmentally friendly flame retardant materials are specially added. This material not only has high-efficiency flame retardant properties, but also does not produce toxic and harmful gases during combustion, which meets environmental protection requirements and ensures the safety and environmental protection of the product.
[0004] However, some walls or floors have complex cable hole structures, or the cable holes are long and deep, or the cable holes are curved. This situation will make the construction of the rapid cable foaming fire retardant curing adhesive difficult, resulting in unsatisfactory expansion performance and sealing effect of the rapid cable foaming fire retardant curing adhesive.
[0005] Therefore, it is necessary to equip the construction site with equipment used to implement the curing glue and improve the implementation process of the curing glue to control the foaming speed and curing speed of the curing glue. Summary of the invention
[0006] The object of the present invention is to provide a process for adjusting and implementing curing adhesive at a power construction site to solve at least one of the above-mentioned technical problems.
[0007] The technical problem solved by the present invention can be achieved by adopting the following technical solutions: The curing glue adjustment implementation process of the power construction site is prepared with power curing glue, which includes component A and component B; Component A includes resin matrix, foaming agent, flame retardant, plasticizer and filler; Component B includes a cross-linking agent, a catalyst, and a coupling agent; An electric glue applicator is also provided, and the electric glue applicator has a glue cartridge for accommodating the glue; There is also an implementation device for the controllable foaming and curing of the power curing adhesive, which has an electromagnetic heater for heating the power curing adhesive and an electromagnet device for magnetically linking the magnetic material; The implementation equipment also includes an electromagnet drive circuit, an electromagnetic heater drive circuit, and a control system; The electromagnet driving circuit is driven and connected to an electromagnetic induction coil through an electromagnet control switch; The electromagnetic heater driving circuit is driven and connected to the same electromagnetic induction coil through an electromagnetic heater control switch; The electromagnetic heater and the electromagnet device share the same electromagnetic induction coil; The control system controls the electromagnetic heater control switch and the electromagnet control switch respectively; The control system controls the electromagnetic heater control switch and the electromagnet control switch to start alternately; The start-up time of the electromagnetic heater driving circuit is 0.2-0.5 seconds, and the frequency of the alternating current output by the electromagnetic heater driving circuit is 20-30kHz; The start-up time of the electromagnet drive circuit is 0.3 to 0.5 seconds, and the alternating frequency of the output of the electromagnet drive circuit to reverse the polarity of the magnetic field is 10 to 20 Hz; Fragmented fiberglass mesh is also available. The glass fiber mesh has warp threads and weft threads, and both the warp threads and the weft threads are made of glass fibers; The glass fiber as one of the warp and weft has a composite layer of soft magnetic material; The glass fiber, which is another one of the warp and weft, has a composite layer of conductive material; The implementation method of power curing glue at the power construction site includes the following steps: Step S1, dust removal: using compressed air to blow air into the cable holes to be foamed and sealed, to blow away the floating dust in the cable holes to be foamed and sealed; Step S2, oil cleaning: spray the cable holes to be foamed and sealed with a self-volatile degreasing spray, let it stand for 10 to 15 minutes, and then use compressed air again to remove the residual spray from the cable holes to be foamed and sealed; Step S3, hot air dehumidification: prepare a hot air device, inject hot air into the cable holes to be foamed and sealed for 3 to 5 minutes to remove moisture from the cable holes to be foamed and sealed; Step S4, mixing glass fiber mesh filler: controlling the weight ratio of component A and glass fiber mesh to be 5:1-3:1, and stirring evenly to obtain a mixture; Step S6, mixing the glue: the mixed material and component B are mixed in a volume ratio of 5:1 to 10:1, and the stirring time is controlled within 2 minutes; after stirring evenly, a mixed colloid is obtained; Step S7, glue injection: remove the glue cartridge of the electric glue machine, pour the mixed colloid into the glue cartridge, load the glue cartridge onto the electric glue machine, squeeze the glue cartridge by the electric glue machine, and inject the mixed colloid in the glue cartridge into the deep of the cable hole to be foamed and sealed by pressure; Step S8, temperature-controlled foaming and vibration curing: start the implementation equipment; The implementation equipment has a working process of alternately turning on the electromagnetic heater and the electromagnet device, and uses a magnetic field induction heating method to heat and foam the mixed colloid injected deep into the cable hole in step S7. When the handheld implementation equipment heats the mixed colloid, the electromagnetic heater is close to the mixed colloid at a distance of 3 cm to 5 cm; In the glass fiber mesh, the glass fiber bonded with graphite powder has conductivity, and the glass fiber bonded with soft magnetic material powder has soft magnetic properties, which can introduce the magnetic field deep into the mixed colloid to form a relatively uniform magnetic field distribution in the mixed colloid, thereby making the conductive glass fiber relatively uniformly heated, thereby controlling the foaming speed of the curing glue; The implementation equipment also has a working process of starting the electromagnet device, and placing the electromagnet device close to the periphery of the cable hole to be foamed at 2cm~5cm. The magnetic field of the electromagnet device interacts with the warp or weft of the glass fiber mesh bonded with soft magnetic material powder, driving the glass fiber mesh to vibrate in the mixed colloid, playing the role of stirring the mixed colloid, causing the cross-linking agent and the water molecules in the curing glue to chemically react to form a three-dimensional cross-linked stereoscopic structure, thereby accelerating the curing speed of the curing glue.
[0008] In the above design, during on-site construction, firstly, a glass fiber mesh in a fragmented form is mixed into component A of the power-curing adhesive, wherein one of the warp or weft of the glass fiber mesh has a composite layer of a conductive material, and the other has a composite layer of a soft magnetic material.
[0009] The mixed colloid is in a fluid state before curing. The fragmented glass fiber mesh and the glass fibers with a composite layer of conductive material are dispersed and suspended in the colloid without contacting each other. The conductive material forms a conductive channel on the surface of the glass fibers, so that the glass fibers have conductive properties and can generate eddy current electricity in electromagnetic induction, thereby generating heat. After the mixed colloid is cured, the conductive glass fibers are in a dispersed and isolated state and cannot be connected in series to form a conductive path. Therefore, the cured glue is insulated as a whole.
[0010] The ferrosoferric oxide powder has soft magnetic properties in the mixed colloid, and can introduce the magnetic field of the electromagnetic heater into the deep of the mixed colloid, forming a relatively uniform magnetic field distribution in the mixed colloid, thereby making the conductive glass fiber in the mixed colloid heat relatively evenly, thereby controlling the foaming speed of the curing glue.
[0011] The beneficial effect of implementing step S1 of the method is to remove dust on the cable surface and deep in the cable hole, so that the cable surface and the cable hole after the dust is removed are in closer contact with the curing adhesive.
[0012] The beneficial effect of implementing step S2 of the method is to remove the oil stains, colloid residues and the like that may remain in the cable holes to be foamed and sealed, so that the bond between the cable holes to be foamed and sealed and the curing adhesive is more firmly established.
[0013] The beneficial effect of implementing step S3 of the method is to remove moisture from the cable holes and prevent the cured adhesive from having quality problems such as aging and cracking after long-term use.
[0014] The beneficial effect of implementing step S4 of the method is that the fragmented glass fiber mesh and component A are doped, and the curing adhesive doped with the fragmented glass fiber mesh can be cured by non-contact heating, bubbling and vibration stirring through the implementing equipment.
[0015] The beneficial effect of implementing step S6 of the method is that component A and component B of the curing adhesive are fully stirred so that the two components start to enter the foaming and curing reaction process after mixing.
[0016] The beneficial effect of implementing step S7 of the method is that, by adopting the implementation method of extrusion injection, the curing glue can be injected deep into the cable hole, achieving a better sealing effect.
[0017] The beneficial effect of the implementation method step S8 is that the electromagnetic heater is used to control the conductive mixed colloid to generate eddy current heat, thereby controlling the foaming speed to achieve controllability of the foaming speed. The fragmented glass fiber mesh, as the other of the warp or weft, has a composite layer of soft magnetic material, and the soft magnetic material has magnetism, which can drive the glass fiber mesh to vibrate under the action of the alternating magnetic field. Its beneficial effect is that the vibration of the glass fiber mesh can play a stirring role, so that the cross-linking agent components of the curing glue and the water molecules can get better contact and then react chemically to form a three-dimensional cross-linked stereoscopic structure, thereby accelerating the curing speed of the curing glue. In addition, the vibration of the glass fiber mesh can also make the contact between the glass fiber mesh and the curing glue more firm and eliminate surface tension.
[0018] In step S8, the electromagnetic heater and the electromagnetic magnetic field are operated alternately, and the magnetic field is started to vibrate the glass fiber mesh while heating the mixed colloid. This implementation method allows the electric solid glue to foam rapidly while the cross-linking agent also reacts chemically with water molecules rapidly to form a three-dimensional cross-linked structure, achieving more uniform foaming and curing of the electric solid glue and better sealing effect.
[0019] In the above design, the function of the alternating frequency of the magnetic polarity cyclic reversal output by the electromagnet drive circuit is to drive the glass fiber mesh to vibrate, so as to achieve stirring, remove bubbles, and make the mesh and colloid contact more firmly. The glass fiber mesh is doped in the mixed colloid, and its excessive vibration will be eliminated by the colloid resistance. Therefore, there is no need for the vibration frequency to be too high. The frequency of the magnetic polarity cyclic reversal is maintained at 10Hz~20Hz, which is sufficient to meet the vibration needs without consuming too much energy.
[0020] Furthermore, the power of the electromagnetic heater driving circuit is between 50w and 200w.
[0021] In the above design, the power output by the electromagnetic heater driving circuit is controlled at 50 watts to 200 watts, which can keep the temperature of the curing glue from rising too high, thereby promoting the foaming speed without destroying the colloidal components of the curing glue due to excessive temperature.
[0022] Furthermore, gas storage particles are prepared that can be detonated by a combination of an induced magnetic field and a magnetic force; The gas storage particles have an airtight rubber bladder filled with air at 1.35-1.5 atmospheres, and the humidity of the filled air is maintained at 80-90%. The volume of gas storage particles is 3mm 3 ~5mm 3 ; A steel sheet with an obtuse angle is arranged in the rubber bladder, and the volume of the steel sheet accounts for 1 / 5 to 1 / 8 of the gas storage particles. The steel sheet is adhered to the inner wall of the rubber bladder by an adhesive; Between step S4, mixing glass fiber mesh filler and step S6, mixing glue, step S5, mixing gas storage particle filler is added: the mixed material and the gas storage particles are mixed in a volume ratio of 5:1 to 3:1, and stirred until uniform, to obtain a secondary mixed material as the mixed material.
[0023] In the above design, the gas storage particles are made of polyvinyl chloride rubber. The polyvinyl chloride rubber vesicles have good mechanical strength, high elasticity and plasticity at room temperature. When the gas storage particles and the mixed colloid are mixed and stirred, the rubber vesicles are easy to deform, but not easy to break, and will not be punctured by the steel sheet during the stirring process.
[0024] Furthermore, it also includes step S9, composite detonation of gas storage particles: the implementation equipment is handheld, and the electromagnetic heater and the electromagnet device are intermittently turned on and off alternately. On the one hand, the steel sheet in the rubber vesicle of the gas storage particle is induction heated by magnetic field induction heating. When the temperature of the steel sheet rises to 130°C-140°C, the rubber vesicle in contact with the steel sheet softens, and is easily stretched and stretched to rupture under the action of internal air pressure; on the other hand, the steel sheet pulls the inner wall of the rubber vesicle under the action of the electromagnet device, and the rubber vesicle is easily torn apart in a softened state, thereby releasing more water molecules inside the cured glue. The water molecules react chemically with the cross-linking agent inside the cured glue to form a three-dimensional cross-linked network, thereby accelerating the curing speed of the cured glue.
[0025] In the above design, the electromagnetic heater and the electromagnet device have a dual role, and its beneficial effect is that it is easier to make the rubber vesicles burst, thereby releasing a large amount of water molecules and cross-linking agents to react chemically, thereby accelerating the curing speed of the solid glue.
[0026] Furthermore, the production equipment for preparing gas storage particles includes a workbench, a grid strip is arranged on the workbench surface, an airtight cavity is arranged under the workbench surface, and the cavity is connected to an air pump; The grid strip is fixedly connected to the top of the cavity; A sealing shear is also provided below the grid strip, and the sealing shear includes two shear blades, and the two shear blades are close to the grid strip, and are respectively provided on the left and right sides of the grid strip; The two scissor blades are also provided with heating devices respectively, and the heating devices heat the two scissor blades to 150 degrees to 200 degrees; The mesh of the mesh slats meets the size requirements of the gas storage particles; The preparation method of gas storage particles is as follows: Step 1: a polyvinyl chloride rubber film is sleeved on the grid strip plate, and the sleeved polyvinyl chloride rubber film blocks all grid holes on the grid strip; an air pump is started to form a negative pressure in the cavity, and the polyvinyl chloride rubber film is sunken into the cavity under the action of atmospheric pressure; Step 2: Place the steel sheet coated with adhesive into the mesh holes in the mesh strips so that the steel sheet falls into the depression; Step 3: The vacuum pump continues to work, so that the polyvinyl chloride rubber membrane is sunken and continues to expand to form vesicles; Step 4, start the sealing shears to cut the vesicles formed by the polyvinyl chloride rubber film from the place close to the bottom of the grid strip plate, and simultaneously perform hot-melt sealing to form gas storage particles; When preparing the above-mentioned gas storage particles, the air humidity of the preparation environment is controlled at 80% to 90%.
[0027] Furthermore, the implementation equipment includes a device housing, and a hand-held handle is provided on the device housing; An electromagnetic induction coil is installed on the device housing; An electromagnet drive circuit and an electromagnetic heater drive circuit are arranged in the housing; A control system is also arranged in the shell, and the electric signal of the control system is connected to the electromagnet control switch and the electromagnetic heater control switch.
[0028] In the above design, the implementation equipment is a handheld device used in the construction site. The implementation equipment is equipped with an electromagnetic induction coil. By connecting the electromagnet drive circuit or the electromagnetic heater drive circuit, the function of heating the mixed colloid and the function of magnetically linked vibration of the glass fiber mesh are respectively realized. The two functions share the same electromagnetic induction coil, which saves manufacturing costs on the one hand and reduces the size and weight of the equipment on the other hand, making it easy to carry on site and saving effort when holding it. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is a schematic diagram of the equipment for implementing the controlled foaming and curing of the power curing adhesive; Figure 2 It is a schematic diagram of the structure of a fragmented fiberglass mesh; Figure 3 is a schematic diagram of gas storage particles.
[0030] Explanation of symbols: 1. Implementation equipment; 2. Glass fiber mesh; 3. Gas storage particles; 11. Electromagnetic induction coil; 21. Warp; 22. Weft; 31. Rubber bladder; 32. Steel sheet. DETAILED DESCRIPTION
[0031] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.
[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0033] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.
[0034] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.
[0035] Example 1, reference Figure 1 , Figure 2 As shown, the implementation process of adjusting the curing glue at the power construction site is prepared with power curing glue, which includes component A and component B; Component A includes resin matrix, foaming agent, flame retardant, plasticizer and filler; Component B includes a cross-linking agent, a catalyst, and a coupling agent; An electric glue applicator is also provided, and the electric glue applicator has a glue cartridge for accommodating the glue; There is also an implementation device 1 for controllable foaming and curing of the power curing adhesive, the implementation device 1 having an electromagnetic heater for heating the power curing adhesive and an electromagnet device for magnetically linking the magnetic material; The implementation equipment 1 also includes an electromagnet drive circuit, an electromagnetic heater drive circuit, and a control system; The electromagnet driving circuit is driven and connected to an electromagnetic induction coil 11 through an electromagnet control switch; The electromagnetic heater driving circuit is driven and connected to the same electromagnetic induction coil 11 through an electromagnetic heater control switch; The electromagnetic heater and the electromagnet device share the same electromagnetic induction coil 11; The control system controls the electromagnetic heater control switch and the electromagnet control switch respectively; The control system controls the electromagnetic heater control switch and the electromagnet control switch to start alternately; The start-up time of the electromagnetic heater driving circuit is 0.2-0.5 seconds, and the frequency of the alternating current output by the electromagnetic heater driving circuit is 20-30kHz; The start-up time of the electromagnet drive circuit is 0.3 to 0.5 seconds, and the alternating frequency of the output of the electromagnet drive circuit to reverse the polarity of the magnetic field is 10 to 20 Hz; A fragmented glass fiber mesh 2 is also provided. The glass fiber mesh 2 has warp threads 21 and weft threads 22, and both the warp threads 21 and the weft threads 22 are made of glass fibers; The glass fiber as one of the warp threads 21 and the weft threads 22 has a composite layer of ferrosoferric oxide powder; The glass fiber as the other of the warp yarn 21 and the weft yarn 22 has a composite layer of graphite powder; The implementation method of power curing glue at the power construction site includes the following steps: Step S1, dust removal: using compressed air to blow air into the cable holes to be foamed and sealed, to blow away the floating dust in the cable holes to be foamed and sealed; Step S2, oil cleaning: spray the cable holes to be foamed and sealed with a self-volatile degreasing spray, let it stand for 10 to 15 minutes, and then use compressed air again to remove the residual spray from the cable holes to be foamed and sealed; Step S3, hot air dehumidification: prepare a hot air device, inject hot air into the cable holes to be foamed and sealed for 3 to 5 minutes to remove moisture from the cable holes to be foamed and sealed; Step S4, mixing glass fiber mesh 2 filler: controlling the weight ratio of component A and glass fiber mesh 2 to be 5:1-3:1, and stirring evenly to obtain a mixture; Step S6, mixing the glue: the mixed material and component B are mixed in a volume ratio of 5:1 to 10:1, and the stirring time is controlled within 2 minutes; after stirring evenly, a mixed colloid is obtained; Step S7, glue injection: remove the glue cartridge of the electric glue machine, pour the mixed colloid into the glue cartridge, load the glue cartridge onto the electric glue machine, squeeze the glue cartridge by the electric glue machine, and inject the mixed colloid in the glue cartridge into the deep of the cable hole to be foamed and sealed by pressure; Step S8, temperature-controlled foaming and vibration curing: start the implementation equipment 1; The implementation equipment 1 has a working process of alternately turning on the electromagnetic heater and the electromagnet device, and uses a magnetic field induction heating method to heat and foam the mixed colloid injected deep into the cable hole in step S7. When the handheld implementation equipment 1 heats the mixed colloid, the electromagnetic heater is close to the mixed colloid at a distance of 3 to 5 cm; In the glass fiber mesh 2, the glass fiber bonded with graphite powder has conductivity, and the glass fiber bonded with soft magnetic material powder has soft magnetic properties, which can introduce the magnetic field into the depth of the mixed colloid to form a relatively uniform magnetic field distribution in the mixed colloid, thereby making the conductive glass fiber relatively uniformly heated, thereby controlling the foaming speed of the curing glue; The implementation equipment 1 also has a working process of starting the electromagnet device, and the electromagnet device is placed 2 to 5 cm close to the periphery of the cable hole to be foamed. The magnetic field of the electromagnet device interacts with the warp 21 or weft 22 bonded with ferroferric oxide powder in the glass fiber mesh 2, driving the glass fiber mesh 2 to vibrate in the mixed colloid, playing a role in stirring the mixed colloid, causing the cross-linking agent and the water molecules in the curing glue to react chemically to form a three-dimensional cross-linked stereoscopic structure, thereby accelerating the curing speed of the curing glue.
[0036] In this embodiment, during on-site construction, firstly, the glass fiber mesh 2 in a fragmented form is mixed into the component A of the power-curing adhesive.
[0037] When drawing, the glass fiber as one of the warp threads 21 and the weft threads 22 passes through a space in the air where graphite dust is floating, and adheres to the graphite powder to form a composite layer of firmly bonded graphite powder; when drawing, the glass fiber as the other of the warp threads 21 and the weft threads 22 passes through a space in the air where ferrosoferric oxide powder dust is floating, and adheres to the ferrosoferric oxide powder to form a composite layer of firmly bonded ferrosoferric oxide powder.
[0038] The mixed colloid is in a fluid state before solidification, and the glass fibers of the glass fiber mesh 2 in a fragmented form and having a graphite powder composite layer are dispersed and suspended in the mixed colloid without contacting each other. Graphite powder has good electrical conductivity. When the graphite powder is bonded to the glass fiber, a conductive path can be formed on the surface of the glass fiber, so that the glass fiber has conductive properties and can generate eddy current electricity in electromagnetic induction, thereby generating heat; after the mixed colloid is solidified, the conductive glass fibers are in a dispersed and isolated state, and cannot be connected in series to form a conductive path, so the solidified glue is insulated as a whole.
[0039] The ferrosoferric oxide powder has soft magnetic properties in the mixed colloid, and can introduce the magnetic field of the electromagnetic heater into the deep of the mixed colloid, forming a relatively uniform magnetic field distribution in the mixed colloid, thereby making the conductive glass fiber in the mixed colloid heat relatively evenly, thereby controlling the foaming speed of the curing glue.
[0040] The beneficial effect of implementing step S1 of the method is to remove dust on the cable surface and deep in the cable hole, so that the cable surface and the cable hole after the dust is removed are in closer contact with the curing adhesive.
[0041] The beneficial effect of implementing step S2 of the method is to remove the oil stains, colloid residues and the like that may remain in the cable holes to be foamed and sealed, so that the bond between the cable holes to be foamed and sealed and the curing adhesive is more firmly established.
[0042] The beneficial effect of implementing step S3 of the method is to remove moisture from the cable holes and prevent the cured adhesive from having quality problems such as aging and cracking after long-term use.
[0043] The beneficial effect of the implementation method step S4 is that the fragmented glass fiber mesh is doped with component A, and the solidified adhesive doped with the fragmented glass fiber mesh can be subjected to non-contact heating and bubbling, and vibration stirring and solidification by the implementation equipment 1.
[0044] The beneficial effect of implementing step S6 of the method is that component A and component B of the curing adhesive are fully stirred so that the two components start to enter the foaming and curing reaction process after mixing.
[0045] The beneficial effect of implementing step S7 of the method is that, by adopting the implementation method of extrusion injection, the curing glue can be injected deep into the cable hole, achieving a better sealing effect.
[0046] The beneficial effect of the implementation method step S8 is that the electromagnetic heater is used to control the conductive mixed colloid to generate eddy current heating, thereby controlling the speed of foaming to achieve controllability of the foaming speed. The fragmented glass fiber mesh 2, as the other of the warp 21 or the weft 22, has a composite layer of ferroferric oxide powder, and the ferroferric oxide powder is magnetic, which can drive the glass fiber mesh 2 to vibrate under the action of the alternating magnetic field. Its beneficial effect is that the vibration of the glass fiber mesh 2 can play a stirring role, so that the crosslinking agent component of the curing glue and the water molecules can get better contact and then react chemically to form a three-dimensional crosslinked stereoscopic structure, thereby accelerating the curing speed of the curing glue. In addition, the vibration of the glass fiber mesh 2 can also make the contact between the glass fiber mesh 2 and the curing glue more firm and eliminate surface tension.
[0047] In step S8, the electromagnetic heater and the electromagnetic magnetic field are operated alternately, and the magnetic field is started to vibrate the glass fiber mesh 2 while heating the mixed colloid. This implementation method allows the electric solid glue to foam rapidly while the cross-linking agent also reacts chemically with water molecules rapidly to form a three-dimensional cross-linked structure, achieving more uniform foaming and curing of the electric solid glue and better sealing effect.
[0048] In this embodiment, the function of the alternating frequency of the magnetic polarity cyclic reversal output by the electromagnet driving circuit is to drive the glass fiber mesh 2 to vibrate, so as to achieve stirring, remove bubbles, and make the mesh and the colloid contact more firmly. The glass fiber mesh 2 is doped in the mixed colloid, and its excessive vibration will be eliminated by the colloid resistance. Therefore, there is no need for the vibration frequency to be too high. The frequency of the magnetic polarity cyclic reversal is maintained at 10Hz~20Hz, which is sufficient to meet the vibration needs without consuming too much energy.
[0049] Furthermore, the power of the electromagnetic heater driving circuit is 50wHz~200w.
[0050] In this embodiment, the power output by the electromagnetic heater driving circuit is controlled at 50-200 watts, which can keep the temperature of the curing glue from rising too high, thereby promoting the foaming speed without destroying the colloidal components of the curing glue due to excessive temperature.
[0051] Example 2, reference Figure 3 As shown, gas storage particles 3 are also prepared that can be detonated by a combination of an induced magnetic field and a magnetic force; The gas storage particle 3 has an airtight rubber bladder 31, and the rubber bladder 31 is filled with air at 1.35-1.5 atmospheres, and the humidity of the filled air is maintained at 80-90%; The volume of gas storage particles 3 is 3mm 3 ~5mm 3 ; A steel sheet 32 with an obtuse angle is arranged in the rubber bladder 31. The volume of the steel sheet 32 accounts for 1 / 5 to 1 / 8 of the volume of the gas storage particles. The steel sheet is adhered to the inner wall of the rubber bladder 31 by an adhesive. Between step S4, mixing the glass fiber mesh 2 filler and step S6, mixing the glue, step S5, mixing the gas storage particles 3 filler is added: the mixed material and the gas storage particles 3 are controlled to be mixed in a volume ratio of 5:1 to 3:1, and stirred until uniform, to obtain a secondary mixed material as the mixed material.
[0052] In this embodiment, the polyvinyl chloride rubber bladder has good mechanical strength, high elasticity and plasticity at room temperature. When the gas storage particles and the mixed colloid are mixed and stirred, the rubber bladder 31 is easy to deform, but not easy to break and will not be punctured by the steel sheet.
[0053] Embodiment 3 also includes step S9, composite detonation of gas storage particles 3: the implementation equipment is handheld, and the electromagnetic heater and the electromagnet device are intermittently turned on and off alternately. On the one hand, the conductive steel sheet 32 in the rubber capsule 31 of the gas storage particle 3 is induction heated by magnetic field induction heating. When the temperature of the steel sheet 32 rises to 130°C-140°C, the rubber capsule in contact with the steel sheet 32 softens, and is easily stretched and stretched to rupture under the action of internal air pressure; on the other hand, the steel sheet 32 pulls the inner wall of the rubber capsule 31 under the action of the electromagnet device, and the rubber capsule 31 is easily torn apart in the softened state of the rubber capsule 31, thereby releasing more water molecules inside the cured glue. The water molecules react chemically with the cross-linking agent inside the cured glue to form a three-dimensional cross-linked network, thereby accelerating the curing speed of the cured glue.
[0054] In this embodiment, the electromagnetic heater and the electromagnet device have a dual function, and the beneficial effect is that it is easier to make the rubber bladder 31 burst, thereby releasing a large amount of water molecules and cross-linking agents to react chemically, thereby accelerating the curing speed of the solid glue.
[0055] Embodiment 4, the production equipment for preparing gas storage particles 3 comprises a workbench, a grid strip plate is arranged on the workbench surface, an airtight cavity is arranged under the workbench surface, and the cavity is connected to a vacuum pump; The grid strip is fixedly connected to the top of the cavity; A sealing shear is also provided below the grid strip, and the sealing shear includes two shear blades, and the two shear blades are close to the grid strip, and are respectively provided on the left and right sides of the grid strip; The two scissor blades are also provided with heating devices respectively, and the heating devices heat the two scissor blades to 150 degrees to 200 degrees; The mesh of the mesh slats meets the size requirements of the gas storage particles 3; The preparation method of the gas storage particles 3 is as follows: Step 1: a polyvinyl chloride rubber film is sleeved on the grid strip plate, and the sleeved polyvinyl chloride rubber film blocks all grid holes on the grid strip; an air pump is started to form a negative pressure in the cavity, and the polyvinyl chloride rubber film is sunken into the cavity under the action of atmospheric pressure; Step 2: Place the steel sheet 32 coated with adhesive into the mesh holes in the mesh strips so that the steel sheet 32 falls into the depression; Step 3: The vacuum pump continues to work, so that the polyvinyl chloride rubber membrane is sunken and continues to expand to form vesicles; Step 4, start the sealing shears to cut the vesicles formed by the polyvinyl chloride rubber film from the position close to the bottom of the grid strip plate, and simultaneously perform hot-melt sealing to form gas storage particles 3; When preparing the gas storage particles 3, the air humidity of the preparation environment is controlled to be between 80% and 90%.
[0056] Reference Figure 1 As shown, the implementation equipment 1 includes a device housing, and a hand-held handle is provided on the device housing; An electromagnetic induction coil 11 is mounted on the device housing; An electromagnet drive circuit and an electromagnetic heater drive circuit are arranged in the housing; A control system is also arranged in the shell, and the electric signal of the control system is connected to the electromagnet control switch and the electromagnetic heater control switch.
[0057] In this embodiment, the implementation equipment 1 is a handheld device used at the construction site. The implementation equipment 1 is equipped with an electromagnetic induction coil 11. By connecting the electromagnet drive circuit or the electromagnetic heater drive circuit, the function of heating the mixed colloid and the function of magnetically linked vibration of the glass fiber mesh 2 are respectively realized. The two functions share the same electromagnetic induction coil 11, which saves manufacturing costs on the one hand and reduces the size and weight of the equipment on the other hand, making it easy to carry on site and saving effort during handheld operation.
[0058] Furthermore, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described, i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention.
[0059] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.
[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. The implementation process of adjusting the curing glue at the power construction site is to prepare the power curing glue, which includes component A and component B; Component A includes resin matrix, foaming agent, flame retardant, plasticizer and filler; Component B includes a cross-linking agent, a catalyst, and a coupling agent; An electric glue dispenser is also provided, the electric glue dispenser has a glue cartridge for containing glue, Features: There is also an implementation device for the controllable foaming and curing of the power curing adhesive, which has an electromagnetic heater for heating the power curing adhesive and an electromagnet device for magnetically linking the magnetic material; The implementation equipment also includes an electromagnet drive circuit, an electromagnetic heater drive circuit, and a control system; The electromagnet driving circuit is driven and connected to an electromagnetic induction coil through an electromagnet control switch; The electromagnetic heater driving circuit is driven and connected to the same electromagnetic induction coil through an electromagnetic heater control switch; The electromagnetic heater and the electromagnet device share the same electromagnetic induction coil; The control system controls the electromagnetic heater control switch and the electromagnet control switch respectively; The control system controls the electromagnetic heater control switch and the electromagnet control switch to start alternately; The start-up time of the electromagnetic heater driving circuit is 0.2 seconds to 0.5 seconds, and the frequency of the alternating current output by the electromagnetic heater driving circuit is 20-30kHz; The start-up time of the electromagnet drive circuit is 0.3 seconds to 0.5 seconds, and the alternating frequency of the output of the electromagnet drive circuit to reverse the polarity of the magnetic field is 10 to 20 Hz; Fragmented fiberglass mesh is also available. The glass fiber mesh has warp threads and weft threads, and both the warp threads and the weft threads are made of glass fibers; The glass fiber as one of the warp and weft has a composite layer of soft magnetic material; The glass fiber, which is another one of the warp and weft, has a composite layer of conductive material; The implementation method of power curing glue at the power construction site includes the following steps: Step S1, dust removal: using compressed air to blow air into the cable holes to be foamed and sealed, to blow away the floating dust in the cable holes to be foamed and sealed; Step S2, oil cleaning: spray the cable holes to be foamed and sealed with a self-volatile degreasing spray, let it stand for 10 to 15 minutes, and then use compressed air again to remove the residual spray from the cable holes to be foamed and sealed; Step S3, hot air dehumidification: prepare a hot air device, inject hot air into the cable holes to be foamed and sealed for 3 to 5 minutes to remove moisture from the cable holes to be foamed and sealed; Step S4, mixing glass fiber mesh filler: controlling the weight ratio of component A and glass fiber mesh to be 5:1-3:1, and stirring evenly to obtain a mixture; Step S6, mixing the glue: the mixed material and component B are mixed in a volume ratio of 5:1 to 10:1, and the stirring time is controlled within 2 minutes; after stirring evenly, a mixed colloid is obtained; Step S7, glue injection: remove the glue cartridge of the electric glue machine, pour the mixed colloid into the glue cartridge, load the glue cartridge onto the electric glue machine, squeeze the glue cartridge by the electric glue machine, and inject the mixed colloid in the glue cartridge into the deep of the cable hole to be foamed and sealed by pressure; Step S8, temperature-controlled foaming and vibration curing: start the implementation equipment; The implementation equipment has a working process of alternately turning on the electromagnetic heater and the electromagnet device, and uses a magnetic field induction heating method to heat and foam the mixed colloid injected deep into the cable hole in step S7. When the handheld implementation equipment heats the mixed colloid, the electromagnetic heater is close to the mixed colloid at a distance of 3 to 5 cm; In the glass fiber mesh, the glass fiber bonded with graphite powder has conductivity, and the glass fiber bonded with soft magnetic material powder has soft magnetic properties, which can introduce the magnetic field deep into the mixed colloid to form a relatively uniform magnetic field distribution in the mixed colloid, thereby making the conductive glass fiber relatively uniformly heated, thereby controlling the foaming speed of the curing glue; The implementation equipment also has a working process of starting the electromagnet device, and placing the electromagnet device 2 to 5 cm close to the periphery of the cable hole to be foamed. The magnetic field of the electromagnet device interacts with the warp or weft of the glass fiber mesh bonded with soft magnetic material powder, driving the glass fiber mesh to vibrate in the mixed colloid, stirring the mixed colloid, causing the cross-linking agent and the water molecules in the curing glue to undergo a chemical reaction to form a three-dimensional cross-linked stereoscopic structure, thereby accelerating the curing speed of the curing glue.
2. The process for adjusting and implementing curing adhesive at the power construction site according to claim 1, characterized in that: The power of the electromagnetic heater driving circuit is between 50~200w.
3. The process for adjusting and implementing curing adhesive at the power construction site according to claim 1 is characterized in that: Gas storage particles that can be detonated by a combination of induced magnetic field and magnetic force are also prepared; The gas storage particles have an airtight rubber bladder filled with air at 1.35-1.5 atmospheres, and the humidity of the filled air is maintained at 80%-90%; The volume of gas storage particles is 3mm 3 ~5mm 3 ; A steel sheet with an obtuse angle is arranged in the rubber bladder, and the volume of the steel sheet accounts for 1 / 5 to 1 / 8 of the gas storage particles. The steel sheet is adhered to the inner wall of the rubber bladder by an adhesive; Between step S4, mixing glass fiber mesh filler and step S6, mixing glue, step S5, mixing gas storage particle filler is added: the mixed material and the gas storage particles are mixed in a volume ratio of 5:1 to 3:1, and stirred until uniform, to obtain a secondary mixed material as the mixed material.
4. The process for adjusting and implementing curing adhesive at the power construction site according to claim 3 is characterized in that: The method also includes step S9, composite detonation of gas storage particles: using the implementation equipment by hand, intermittently and alternately turning on the electromagnetic heater and the electromagnet device, on the one hand, utilizing magnetic field induction heating to induction heat the steel sheet in the rubber vesicle of the gas storage particle, when the temperature of the steel sheet rises to 130°C-140°C, the rubber vesicle contacting the steel sheet softens, and is easily stretched and stretched to rupture under the action of the internal air pressure; on the other hand, the steel sheet pulls the inner wall of the rubber vesicle under the action of the electromagnet device, and is easily torn apart when the rubber vesicle is softened, thereby releasing more water molecules inside the cured glue, and the water molecules react chemically with the cross-linking agent inside the cured glue to form a three-dimensional cross-linked network, thereby accelerating the curing speed of the cured glue.
5. The process for adjusting and implementing curing adhesive at the power construction site according to claim 3 is characterized in that: The production equipment for preparing gas storage particles comprises a workbench, a grid strip plate is arranged on the workbench surface, an airtight cavity is arranged under the workbench surface, and the cavity is connected to an air pump; The grid strip is fixedly connected to the top of the cavity; A sealing shear is also provided below the grid strip, and the sealing shear includes two shear blades, and the two shear blades are close to the grid strip, and are respectively provided on the left and right sides of the grid strip; The two scissor blades are also provided with heating devices respectively, and the heating devices heat the two scissor blades to 150 degrees to 200 degrees; The mesh of the mesh slats meets the size requirements of the gas storage particles; The preparation method of gas storage particles is as follows: Step 1: a polyvinyl chloride rubber film is sheathed on the mesh strip plate, and the sheathed polyvinyl chloride rubber film seals all mesh holes on the mesh strip; Start the vacuum pump to form negative pressure in the cavity, and the polyvinyl chloride rubber membrane sinks into the cavity under the action of atmospheric pressure; Step 2: Place the steel sheet coated with adhesive into the mesh holes in the mesh strips so that the steel sheet falls into the depression; Step 3: The vacuum pump continues to work, so that the polyvinyl chloride rubber membrane is sunken and continues to expand to form vesicles; Step 4, start the sealing shears to cut the vesicles formed by the polyvinyl chloride rubber film from the place close to the bottom of the grid strip plate, and simultaneously perform hot-melt sealing to form gas storage particles; When preparing the above-mentioned gas storage particles, the air humidity of the preparation environment is controlled at 80% to 90%.
6. The process for adjusting and implementing curing adhesive at the power construction site according to claim 1, characterized in that: The implementation equipment includes an equipment shell, on which a hand-held handle is provided; An electromagnetic induction coil is installed on the device housing; An electromagnet drive circuit and an electromagnetic heater drive circuit are arranged in the housing; A control system is also arranged in the shell, and the electric signal of the control system is connected to the electromagnet control switch and the electromagnetic heater control switch.
Citation Information
Patent Citations
Rapid foaming fireproof and waterproof sealant for power cable
CN119242260A