CIPP hose, glue filling tool and manufacturing process

Abstract

The application discloses a CIPP hose, which comprises a first glass cloth, a first anti-leakage layer and an inner film, the outer side of the first glass cloth is coated with an ultraviolet-proof layer, the inner side of the first glass cloth is provided with a second glass cloth, a plurality of reinforcing rods are uniformly arranged between the first glass cloth and the second glass cloth, a resin layer is formed between the first glass cloth and the second glass cloth by glue pouring, and the inner film is arranged on the inner side of the second glass cloth, compared with the prior art, the application has the advantages of simple process and convenient operation; the reinforcing rods are arranged in the hose, can play a role in partitioning when the glue is poured, and can make the slurry uniformly fill the whole dry pipe; after the hose is turned over and used, the strength of the hose is increased; a plurality of flow guide pipes are arranged, vacuumizing and glue pouring can be more quickly performed, the overall efficiency is improved, meanwhile, the glue pouring is more uniform, the wall thickness is consistent, white spots are avoided, and the stability of the hose is improved.

Description

Technical Field

[0001] This invention relates to the field of CIPP hose manufacturing, specifically to a CIPP hose, a dispensing tool, and a manufacturing process. Background Technology

[0002] Municipal underground rainwater and sewage pipes frequently suffer from corrosion, leaks, and misalignment, leading to social problems such as flooding, road collapses, and road subsidence. Corrosion and rupture in water supply pipes also cause significant waste of water resources and endanger public safety and property.

[0003] The original repair process involved excavating the underground pipes with an excavator and then burying the new pipe, known as the traditional excavation method. However, this method is time-consuming and causes road damage, air pollution, noise pollution, and traffic congestion. Therefore, China introduced the latest trenchless repair technology from Europe. This technology repairs damaged underground pipes without excavating the road; it's called in-situ curing, a trenchless repair method for sewers, sewage pipes, and water pipes. This repair method has minimal environmental pollution, minimal traffic impact, does not disturb residents, and is low-carbon. It is the latest Western technology introduced to China. Its principle is to create a new pipe inside the existing pipeline, with independent structural strength, capable of independently supporting external pressure and internal water pressure.

[0004] Cippled hose production mainly involves two stages: dry tube fabrication and resin injection. Dry tube fabrication involves laying the first layer of fiberglass cloth according to design requirements, along with an outer UV-protective layer and an inner film. After the inner film is completed, the next step is resin injection. Currently, the resin injection process uses a mechanical roller pressing method. This involves applying the resin to a point between the outer film and the first fiberglass cloth, then using a mechanical roller to push it forward, spreading it out and pressing it into the gaps in the first fiberglass cloth. The disadvantages of this process are that the stress on different points of the hose is uneven, leading to uneven thickness. Some areas may not be properly impregnated with resin, causing white spots. After UV curing, these spots may leak, affecting product quality. Furthermore, this process uses a large amount of resin, resulting in a low modulus and affecting the product's lifespan. Summary of the Invention

[0005] To address the shortcomings of existing technologies in terms of uneven glue dispensing, the present invention aims to provide a CIPP hose with efficient and uniform glue dispensing, a glue dispensing tool, and a manufacturing process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A CIPP hose includes a first fiberglass cloth, a first leak-proof layer, and an inner membrane. The outer side of the first fiberglass cloth is coated with an anti-ultraviolet layer. A second fiberglass cloth is disposed on the inner side of the first fiberglass cloth. A plurality of reinforcing rods are evenly disposed between the first fiberglass cloth and the second fiberglass cloth. A resin layer is formed between the first fiberglass cloth and the second fiberglass cloth by injection. The inner membrane is disposed on the inner side of the second fiberglass cloth.

[0008] As a further preferred embodiment of the present invention, a second anti-leakage membrane is provided between the second fiberglass cloth and the inner membrane.

[0009] A CIPP hose dispensing fixture includes several guide tubes, several steel wires, and a solenoid three-way valve. The guide tubes are used to discharge the slurry. One end of the guide tube is provided with a conical head and has a hollow internal structure. Several overflow holes are evenly arranged on the guide tube. The other end of the guide tube is connected to one end of the dispensing tube, and the other end of the dispensing tube is connected to one end of the solenoid three-way valve. The other two ends of the solenoid three-way valve are respectively connected to a dispensing pump and a vacuum pump. Several steel wires are evenly arranged on the guide tubes to fix the guide tubes. The two ends of the steel wires away from the conical head of the guide tube are connected to traction ropes, and the other end of the traction ropes passes through the dispensing tube and exits from the end of the solenoid three-way valve connected to the dispensing pump.

[0010] A CIPP hose manufacturing process includes the following steps: S1, covering the outside of a first fiberglass cloth with a first leak-proof layer, coating the outer layer of the first leak-proof layer with an anti-UV coating to form an anti-UV layer, covering the inside of a second fiberglass cloth with a second leak-proof layer, and covering the inside of the second leak-proof layer with an inner membrane; S2, fabricating the main hose by laying the first fiberglass cloth according to the hose design requirements; S3, laying the second fiberglass cloth inside the first fiberglass cloth, and evenly laying several reinforcing rods between the first and second fiberglass cloths, and fixing them to the first fiberglass cloth; S4, fabricating a dispensing fixture; S5, placing the dispensing fixture between the first and second fiberglass layers, ready for dispensing; S6, mixing the adhesive by mixing different raw materials according to the mixing ratio; S7, sealing both ends of the hose; S8, turning on the vacuum pump to create a vacuum and performing a test; S9, turning off the vacuum pump and turning on the dispensing pump to dispense the adhesive; S10, after completion, pulling out the dispensing fixture with a traction rope and performing a vacuum seal.

[0011] As a further preferred embodiment of the present invention, the specific operation steps in step S4 are as follows: S4.1. According to the hose design requirements, read the hose length L and hose diameter D; S4.2. Calculate the tooling length K, tooling width T, the number of steel wires Z, and the number of guide tubes P required; S4.3. Prepare the steel wires and guide tubes according to the data in S4.2; S4.4. Use steel wires to wind several guide tubes at equal intervals in sequence; S4.5. Wind and fix all the steel wires in sequence. When winding the steel wires away from the conical head end of the guide tube, install traction ropes at both ends of the steel wires; S4.6. The other end of the traction rope enters from the glue-filling tube and exits from the end of the solenoid three-way valve connected to the glue-filling pump; S4.7. Connect the non-conical head end of the guide tube to the glue-filling tube; S4.8. Connect the glue-filling tube, vacuum pump, and glue-filling pump to the three interfaces of the solenoid three-way valve respectively. The glue-filling tooling is now complete.

[0012] As a further preferred embodiment of the present invention, the tooling length is K=(1 / 3~3 / 4)L; the tooling width is T=D*3.14 / 2; the required number of steel wires is Z=K / 300+2; the required number of guide tubes is P=T / 200+2; wherein, the required number of steel wires Z and the required number of guide tubes P are both rounded to the nearest integer.

[0013] As a further preferred embodiment of the present invention, in step 5, the guide tube is placed between two horizontally adjacent reinforcing rods.

[0014] As a further preferred embodiment of the present invention, in step 6, 100 parts of resin, 2-4 parts of initiator, and 2-5 parts of UV accelerator are weighed in proportion, stirred for 5 min-20 min, allowed to stand for 5 min-35 min, and vacuumed for 10 min-90 min to complete the preparation of the resin, which is then ready for use.

[0015] As a further preferred embodiment of the present invention, in step 8, a vacuum test is performed to ensure that there are no leaks in the main pipe, and the pressure is -0.04 MPa to -0.1 MPa.

[0016] The advantages of this invention are: the process is simple and easy to operate; by adding a reinforcing rod to the hose, it can play a role in partitioning during glue filling, so that the slurry can be evenly filled into the entire dry tube; after being turned over for use, it can increase the strength of the hose; by setting several guide tubes, vacuuming and glue filling can be performed more quickly, improving the overall efficiency, while making the glue filling more uniform and the wall thickness consistent, avoiding white spots, and improving the stability of the hose. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the hose of the present invention;

[0018] Figure 2 This is a structural diagram of the glue-dispensing fixture.

[0019] The meanings of the labels in the attached diagram are as follows: 1. UV protection layer; 2. First fiberglass cloth; 3. Reinforcing rod; 4. Resin layer; 5. Glue-drenching tool; 501. Guide tube; 502. Steel wire; 503. Glue-drenching tube; 504. Electromagnetic three-way valve; 505. Vacuum pump; 506. Traction rope; 507. Glue-drenching pump; 6. Second fiberglass cloth; 7. First anti-leakage membrane; 8. Inner membrane; 9. Second anti-leakage membrane. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Specific Implementation Example 1: Combined with Appendix Figure 1 A CIPP hose includes a first fiberglass cloth 2, a first leak-proof layer 7, and an inner membrane 8. The outer side of the first fiberglass cloth 2 is coated with an ultraviolet-resistant layer 1. A second fiberglass cloth 6 is disposed on the inner side of the first fiberglass cloth 2. A plurality of reinforcing rods 3 are uniformly disposed between the first fiberglass cloth 2 and the second fiberglass cloth 6. The material of the reinforcing rods 3 is selected by those skilled in the art according to the actual situation. A resin layer 4 is formed between the first fiberglass cloth 2 and the second fiberglass cloth 6 by potting glue. The inner membrane 8 is disposed on the inner side of the second fiberglass cloth 6.

[0022] Specific Implementation Example 2: Combined with Appendix Figure 1 A CIPP hose includes a first fiberglass cloth 2, a first leak-proof layer 7, and an inner membrane 8. The outer side of the first fiberglass cloth 2 is coated with an ultraviolet-resistant layer 1. A second fiberglass cloth 6 is disposed on the inner side of the first fiberglass cloth 2. A plurality of reinforcing rods 3 are evenly disposed between the first fiberglass cloth 2 and the second fiberglass cloth 6. A resin layer 4 is formed between the first fiberglass cloth 2 and the second fiberglass cloth 6 by injection. The inner membrane 8 is disposed on the inner side of the second fiberglass cloth 6. A second leak-proof membrane 9 is disposed between the second fiberglass cloth 6 and the inner membrane 8.

[0023] Specific Embodiment 3: A CIPP hose dispensing fixture 5 includes several guide tubes 501, several steel wires 502, and a solenoid three-way valve 504. The guide tubes 501 are used to discharge the slurry. One end of the guide tube 501 is provided with a conical head and has a hollow internal structure. Several overflow holes are evenly provided on the guide tube 501. The other end of the guide tube 501 is connected to one end of the dispensing tube 503, and the other end of the tube is connected to the solenoid three-way valve. One end of the electromagnetic three-way valve 504 is connected to the glue dispensing pump 507 and the vacuum pump 505 respectively. Several steel wires 502 are evenly arranged on the guide tube 501 to fix the guide tube 501. The two ends of the steel wires 502 away from the conical head of the guide tube 501 are connected to the traction ropes 506, and the other end of the traction ropes 506 passes through the glue dispensing tube 503 and exits from the end of the electromagnetic three-way valve 504 connected to the glue dispensing pump 507.

[0024] Specific Implementation Example 4: A CIPP hose with a diameter of 400mm and a length of 50 meters needs to be manufactured. The specific steps include:

[0025] S1. Cover the outside of the first fiberglass cloth with a first waterproof layer, coat the outer layer of the first waterproof layer with an anti-ultraviolet coating to form an anti-ultraviolet layer, cover the inside of the second fiberglass cloth with a second waterproof layer, and cover the inside of the second waterproof layer with an inner membrane.

[0026] S2. Make the main pipe by laying out the first fiberglass cloth 2 according to the hose design requirements.

[0027] S3. Lay the second fiberglass cloth 6 inside the first fiberglass cloth 2, and evenly lay several reinforcing rods 3 between the first fiberglass cloth 2 and the second fiberglass cloth 6, and fix them to the first fiberglass cloth 1.

[0028] S4. Make the glue-dispensing fixture.

[0029] The specific steps are as follows:

[0030] S4.1 According to the hose design requirements, read the hose length L and hose diameter D.

[0031] S4.2 Calculate the tooling length K, tooling width T, the required number of steel wires 502 Z, and the required number of guide tubes 501 P; the tooling length K = (1 / 3~3 / 4)L; the tooling width T = D*3.14 / 2; the required number of steel wires 502 Z = K / 300+2; the required number of guide tubes 501 P = T / 200+2; where the required number of steel wires 502 Z and the required number of guide tubes 501 P are rounded to the nearest integer.

[0032] The tooling length K is 25m, the tooling width T is 628mm, the required number of steel wires 502 Z is 10, and the required number of guide tubes 501 P is 5, which are evenly distributed in the width direction of the glue-pouring tooling 5.

[0033] S4.3 Prepare steel wire 502 and guide tube 501 according to the data in S4.2.

[0034] S4.4. Use steel wire 502 to wind several guide tubes 501 at equal intervals in sequence.

[0035] S4.5. Wrap and fix all the steel wires 502 in sequence. When wrapping the steel wire 502 away from the conical head of the guide tube 501, install the traction rope 506 at both ends of the steel wire 502.

[0036] S4.6 The other end of the traction rope 506 passes through the glue-dispensing tube 503 and exits through the end of the glue-dispensing pump 507 connected to the electromagnetic three-way valve 504.

[0037] S4.7, One end of the non-conical head of the guide tube 501 is connected to the glue-dispensing tube 503.

[0038] S4.8 Connect the dispensing tube 503, vacuum pump 505 and dispensing pump 507 to the three ports of the solenoid three-way valve 504 respectively, and the dispensing fixture 5 is completed.

[0039] S5. Place the dispensing fixture between the first fiberglass layer 2 and the second fiberglass layer 6, and place the guide tube 501 between two horizontally adjacent reinforcing rods 3 to prepare for dispensing.

[0040] S6. Prepare the resin: Weigh 100 parts resin, 2 parts initiator, and 2 parts UV accelerator according to the ratio, stir for 15 minutes, let stand for 10 minutes, and vacuum for 15 minutes to complete the preparation.

[0041] S7. Seal both ends of the hose.

[0042] S8. Turn on vacuum pump 505 to evacuate the vacuum and check the vacuum level to ensure that there are no leaks in the main pipe and the pressure is -0.04MPa.

[0043] S9. Turn off vacuum pump 505 and turn on dispensing pump 507 to dispense adhesive.

[0044] S10. After completion, the glue-dispensing fixture 5 is pulled out by the traction rope 506 and vacuum-sealed.

[0045] Specific Implementation Example 5: A CIPP hose with a diameter of 500mm and a length of 100 meters needs to be manufactured. The specific steps include:

[0046] S1. Cover the outside of the first fiberglass cloth with a first waterproof layer, coat the outer layer of the first waterproof layer with an anti-ultraviolet coating to form an anti-ultraviolet layer, cover the inside of the second fiberglass cloth with a second waterproof layer, and cover the inside of the second waterproof layer with an inner membrane.

[0047] S2. Make the main pipe by laying out the first fiberglass cloth 2 according to the hose design requirements.

[0048] S3. Lay the second fiberglass cloth 6 inside the first fiberglass cloth 2, and evenly lay several reinforcing rods 3 between the first fiberglass cloth 2 and the second fiberglass cloth 6, and fix them to the first fiberglass cloth 1.

[0049] S4. Make the glue-dispensing fixture.

[0050] The specific steps are as follows:

[0051] S4.1 According to the hose design requirements, read the hose length L and hose diameter D.

[0052] S4.2 Calculate the tooling length K, tooling width T, the required number of steel wires 502 Z, and the required number of guide tubes 501 P; the tooling length K = (1 / 3~3 / 4)L; the tooling width T = D*3.14 / 2; the required number of steel wires 502 Z = K / 300+2; the required number of guide tubes 501 P = T / 200+2; where the required number of steel wires 502 Z and the required number of guide tubes 501 P are rounded to the nearest integer.

[0053] The tooling length K is 45m, the tooling width T is 785mm, the required number of steel wires 502 Z is 17, and the required number of guide tubes 501 P is 6, which are evenly distributed in the width direction of the glue-pouring tooling 5.

[0054] S4.3 Prepare steel wire 502 and guide tube 501 according to the data in S4.2.

[0055] S4.4. Use steel wire 502 to wind several guide tubes 501 at equal intervals in sequence.

[0056] S4.5. Wrap and fix all the steel wires 502 in sequence. When wrapping the steel wire 502 away from the conical head of the guide tube 501, install the traction rope 506 at both ends of the steel wire 502.

[0057] S4.6 The other end of the traction rope 506 passes through the glue-dispensing tube 503 and exits through the end of the glue-dispensing pump 507 connected to the electromagnetic three-way valve 504.

[0058] S4.7, One end of the non-conical head of the guide tube 501 is connected to the glue-dispensing tube 503.

[0059] S4.8 Connect the dispensing tube 503, vacuum pump 505 and dispensing pump 507 to the three ports of the solenoid three-way valve 504 respectively, and the dispensing fixture 5 is completed.

[0060] S5. Place the dispensing fixture between the first fiberglass layer 2 and the second fiberglass layer 6, and place the guide tube 501 between two horizontally adjacent reinforcing rods 3 to prepare for dispensing.

[0061] S6. Prepare the resin: Weigh 100 parts resin, 2 parts initiator, and 2.5 parts UV accelerator according to the ratio, stir for 9 minutes, let stand for 24 minutes, and vacuum for 10 minutes to complete the preparation.

[0062] S7. Seal both ends of the hose.

[0063] S8. Turn on vacuum pump 505 to draw a vacuum and check the vacuum level to ensure that there are no leaks in the main pipe and the pressure is -0.08MPa.

[0064] S9. Turn off vacuum pump 505 and turn on dispensing pump 507 to dispense adhesive.

[0065] S10. After completion, the glue-dispensing fixture 5 is pulled out by the traction rope 506 and vacuum-sealed.

[0066] Specific Implementation Example Six: A CIPP hose with a diameter of 600mm and a length of 60 meters needs to be manufactured. The specific steps include:

[0067] S1. Cover the outside of the first fiberglass cloth with a first waterproof layer, coat the outer layer of the first waterproof layer with an anti-ultraviolet coating to form an anti-ultraviolet layer, cover the inside of the second fiberglass cloth with a second waterproof layer, and cover the inside of the second waterproof layer with an inner membrane.

[0068] S2. Make the main pipe by laying out the first fiberglass cloth 2 according to the hose design requirements.

[0069] S3. Lay the second fiberglass cloth 6 inside the first fiberglass cloth 2, and evenly lay several reinforcing rods 3 between the first fiberglass cloth 2 and the second fiberglass cloth 6, and fix them to the first fiberglass cloth 1.

[0070] S4. Make the glue-dispensing fixture.

[0071] The specific steps are as follows:

[0072] S4.1 According to the hose design requirements, read the hose length L and hose diameter D.

[0073] S4.2 Calculate the tooling length K, tooling width T, the required number of steel wires 502 Z, and the required number of guide tubes 501 P; the tooling length K = (1 / 3~3 / 4)L; the tooling width T = D*3.14 / 2; the required number of steel wires 502 Z = K / 300+2; the required number of guide tubes 501 P = T / 200+2; where the required number of steel wires 502 Z and the required number of guide tubes 501 P are rounded to the nearest integer.

[0074] The tooling length K is 30m, the tooling width T is 942mm, the required number of steel wires 502 Z is 12, and the required number of guide tubes 501 P is 7, which are evenly distributed in the width direction of the glue-pouring tooling 5.

[0075] S4.3 Prepare steel wire 502 and guide tube 501 according to the data in S4.2.

[0076] S4.4. Use steel wire 502 to wind several guide tubes 501 at equal intervals in sequence.

[0077] S4.5. Wrap and fix all the steel wires 502 in sequence. When wrapping the steel wire 502 away from the conical head of the guide tube 501, install the traction rope 506 at both ends of the steel wire 502.

[0078] S4.6 The other end of the traction rope 506 passes through the glue-dispensing tube 503 and exits through the end of the glue-dispensing pump 507 connected to the electromagnetic three-way valve 504.

[0079] S4.7, One end of the non-conical head of the guide tube 501 is connected to the glue-dispensing tube 503.

[0080] S4.8 Connect the dispensing tube 503, vacuum pump 505 and dispensing pump 507 to the three ports of the solenoid three-way valve 504 respectively, and the dispensing fixture 5 is completed.

[0081] S5. Place the dispensing fixture between the first fiberglass layer 2 and the second fiberglass layer 6, and place the guide tube 501 between two horizontally adjacent reinforcing rods 3 to prepare for dispensing.

[0082] S6. Prepare the resin: Weigh 100 parts resin, 2.3 parts initiator, and 4 parts UV accelerator according to the ratio, stir for 8 minutes, let stand for 15 minutes, and vacuum for 50 minutes to complete the preparation.

[0083] S7. Seal both ends of the hose.

[0084] S8. Turn on vacuum pump 505 to evacuate the vacuum and check the vacuum level to ensure that there are no leaks in the main pipe and the pressure is -0.099MPa.

[0085] S9. Turn off vacuum pump 505 and turn on dispensing pump 507 to dispense adhesive.

[0086] S10. After completion, the glue-dispensing fixture 5 is pulled out by the traction rope 506 and vacuum-sealed.

[0087] Specific Implementation Example 7: A CIPP hose with a diameter of 800mm and a length of 80 meters needs to be manufactured. The specific steps include:

[0088] S1. Cover the outside of the first fiberglass cloth with a first waterproof layer, coat the outer layer of the first waterproof layer with an anti-ultraviolet coating to form an anti-ultraviolet layer, cover the inside of the second fiberglass cloth with a second waterproof layer, and cover the inside of the second waterproof layer with an inner membrane.

[0089] S2. Make the main pipe by laying out the first fiberglass cloth 2 according to the hose design requirements.

[0090] S3. Lay the second fiberglass cloth 6 inside the first fiberglass cloth 2, and evenly lay several reinforcing rods 3 between the first fiberglass cloth 2 and the second fiberglass cloth 6, and fix them to the first fiberglass cloth 1.

[0091] S4. Make the glue-dispensing fixture.

[0092] The specific steps are as follows:

[0093] S4.1 According to the hose design requirements, read the hose length L and hose diameter D.

[0094] S4.2 Calculate the tooling length K, tooling width T, the required number of steel wires 502 Z, and the required number of guide tubes 501 P; the tooling length K = (1 / 3~3 / 4)L; the tooling width T = D*3.14 / 2; the required number of steel wires 502 Z = K / 300+2; the required number of guide tubes 501 P = T / 200+2; where the required number of steel wires 502 Z and the required number of guide tubes 501 P are rounded to the nearest integer.

[0095] The tooling length K is 40m, the tooling width T is 1256mm, the required number of steel wires 502 Z is 15, and the required number of guide tubes 501 P is 8, which are evenly distributed in the width direction of the glue-pouring tooling 5.

[0096] S4.3 Prepare steel wire 502 and guide tube 501 according to the data in S4.2.

[0097] S4.4. Use steel wire 502 to wind several guide tubes 501 at equal intervals in sequence.

[0098] S4.5. Wrap and fix all the steel wires 502 in sequence. When wrapping the steel wire 502 away from the conical head of the guide tube 501, install the traction rope 506 at both ends of the steel wire 502.

[0099] S4.6 The other end of the traction rope 506 passes through the glue-dispensing tube 503 and exits through the end of the glue-dispensing pump 507 connected to the electromagnetic three-way valve 504.

[0100] S4.7, One end of the non-conical head of the guide tube 501 is connected to the glue-dispensing tube 503.

[0101] S4.8 Connect the dispensing tube 503, vacuum pump 505 and dispensing pump 507 to the three ports of the solenoid three-way valve 504 respectively, and the dispensing fixture 5 is completed.

[0102] S5. Place the dispensing fixture between the first fiberglass layer 2 and the second fiberglass layer 6, and place the guide tube 501 between two horizontally adjacent reinforcing rods 3 to prepare for dispensing.

[0103] S6. Prepare the resin: Weigh 100 parts resin, 3 parts initiator, and 2 parts UV accelerator according to the ratio, stir for 9 minutes, let stand for 18 minutes, and vacuum for 70 minutes to complete the preparation.

[0104] S7. Seal both ends of the hose.

[0105] S8. Turn on vacuum pump 505 to draw a vacuum and check the vacuum level to ensure that there are no leaks in the main pipe and the pressure is -0.075MPa.

[0106] S9. Turn off vacuum pump 505 and turn on dispensing pump 507 to dispense adhesive.

[0107] S10. After completion, the glue-dispensing fixture 5 is pulled out by the traction rope 506 and vacuum-sealed.

[0108] Specific Implementation Example 8: A CIPP hose with a diameter of 1000mm and a length of 75 meters needs to be manufactured. The specific steps include:

[0109] S1. Cover the outside of the first fiberglass cloth with a first waterproof layer, coat the outer layer of the first waterproof layer with an anti-ultraviolet coating to form an anti-ultraviolet layer, cover the inside of the second fiberglass cloth with a second waterproof layer, and cover the inside of the second waterproof layer with an inner membrane.

[0110] S2. Make the main pipe by laying out the first fiberglass cloth 2 according to the hose design requirements.

[0111] S3. Lay the second fiberglass cloth 6 inside the first fiberglass cloth 2, and evenly lay several reinforcing rods 3 between the first fiberglass cloth 2 and the second fiberglass cloth 6, and fix them to the first fiberglass cloth 1.

[0112] S4. Make the glue-dispensing fixture.

[0113] The specific steps are as follows:

[0114] S4.1 According to the hose design requirements, read the hose length L and hose diameter D.

[0115] S4.2 Calculate the tooling length K, tooling width T, the required number of steel wires 502 Z, and the required number of guide tubes 501 P; the tooling length K = (1 / 3~3 / 4)L; the tooling width T = D*3.14 / 2; the required number of steel wires 502 Z = K / 300+2; the required number of guide tubes 501 P = T / 200+2; where the required number of steel wires 502 Z and the required number of guide tubes 501 P are rounded to the nearest integer.

[0116] The tooling length K is 40m, the tooling width T is 1570mm, the required number of steel wires 502 Z is 15, and the required number of guide tubes 501 P is 10, which are evenly distributed in the width direction of the glue-pouring tooling 5.

[0117] S4.3 Prepare steel wire 502 and guide tube 501 according to the data in S4.2.

[0118] S4.4. Use steel wire 502 to wind several guide tubes 501 at equal intervals in sequence.

[0119] S4.5. Wrap and fix all the steel wires 502 in sequence. When wrapping the steel wire 502 away from the conical head of the guide tube 501, install the traction rope 506 at both ends of the steel wire 502.

[0120] S4.6 The other end of the traction rope 506 passes through the glue-dispensing tube 503 and exits through the end of the glue-dispensing pump 507 connected to the electromagnetic three-way valve 504.

[0121] S4.7, One end of the non-conical head of the guide tube 501 is connected to the glue-dispensing tube 503.

[0122] S4.8 Connect the dispensing tube 503, vacuum pump 505 and dispensing pump 507 to the three ports of the solenoid three-way valve 504 respectively, and the dispensing fixture 5 is completed.

[0123] S5. Place the dispensing fixture between the first fiberglass layer 2 and the second fiberglass layer 6, and place the guide tube 501 between two horizontally adjacent reinforcing rods 3 to prepare for dispensing.

[0124] S6. Prepare the resin: Weigh 100 parts resin, 4 parts initiator, and 2-5 parts UV accelerator according to the ratio, stir for 17 minutes, let stand for 20 minutes, and vacuum for 90 minutes to complete the preparation.

[0125] S7. Seal both ends of the hose.

[0126] S8. Turn on vacuum pump 505 to evacuate the vacuum and check the vacuum level to ensure that there are no leaks in the main pipe and the pressure is -0.085MPa.

[0127] S9. Turn off vacuum pump 505 and turn on dispensing pump 507 to dispense adhesive.

[0128] S10. After completion, the glue-dispensing fixture 5 is pulled out by the traction rope 506 and vacuum-sealed.

[0129] The advantages of this invention are: the process is simple and easy to operate; by adding a reinforcing rod 3 to the hose, it can play a role in partitioning during glue filling, so that the slurry can be evenly filled throughout the dry tube; after being turned over for use, it can increase the strength of the hose; by setting several guide tubes 501, vacuuming and glue filling can be performed more quickly, improving the overall efficiency, while making the glue filling more uniform and the wall thickness consistent, avoiding white spots, and improving the stability of the hose.

[0130] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A CIPP hose manufacturing process, comprising a first glass cloth, a first impermeable layer and an inner film, the outer side of the first glass cloth is coated to form an ultraviolet-proof layer, the inner side of the first glass cloth is provided with a second glass cloth, a plurality of reinforcing rods are uniformly arranged between the first glass cloth and the second glass cloth, a resin layer is formed between the first glass cloth and the second glass cloth by glue pouring, the inner film is arranged on the inner side of the second glass cloth, and a second impermeable film is arranged between the second glass cloth and the inner film; characterized in that, It comprises the following steps: S1, covering the first glass fiber cloth outside with the first anti-leakage layer, coating the anti-ultraviolet paint on the outer layer of the first anti-leakage layer to form an anti-ultraviolet layer, covering the second glass fiber cloth inside with the second anti-leakage layer, and covering the inner membrane inside the second anti-leakage layer; S2, making a dry pipe, and spreading the first glass fiber cloth according to the design requirements of the hose; S3, laying the second glass fiber cloth in the first glass fiber cloth, evenly laying a plurality of reinforcing rods between the first glass fiber cloth and the second glass fiber cloth, and fixing the reinforcing rods with the first glass fiber cloth; S4, making a glue filling tool; S5, placing the glue filling tool between the first glass fiber layer and the second glass fiber layer, and preparing for glue filling; S6, mixing and blending different raw materials according to the proportion; S7, sealing the two ends of the hose; S8, opening the vacuum pump, vacuumizing, and detecting; S9, closing the vacuum pump, opening the glue filling pump, and filling glue; S10, after completion, pulling out the glue filling tool through the pulling rope, and vacuumizing and sealing.

2. A CIPP soft tube manufacturing process according to claim 1, characterized in that, The specific operation steps in step S4 are as follows: S4.1, according to the design requirements of the hose, reading the length L and diameter D of the hose; S4.2, calculating the tool length K, tool width T, required number of steel wires Z and required number of flow guide pipes P; S4.3, preparing steel wires and flow guide pipes according to the data of S4.2; S4.4, winding a plurality of flow guide pipes with steel wires at equal intervals; S4.5, winding and fixing all the steel wires, and installing pulling ropes at both ends of the steel wire when winding the steel wire away from the tapered head of the flow guide pipe; S4.6, the other end of the pulling rope is inserted into the glue filling pipe and out of the end connected with the glue filling pump of the electromagnetic three-way valve; S4.7, the non-tapered head of the flow guide pipe is connected with the glue filling pipe; S4.8, connecting the glue filling pipe, vacuum pump and glue filling pump with the three interfaces of the electromagnetic three-way valve respectively, and the glue filling tool is completed.

3. A CIPP softening manufacturing process according to claim 2, wherein, The tool length is K=(1 / 3~3 / 4)L; the tool width T is D*3.14 / 2; the required number of steel wires Z is K / 300+2; and the required number of flow guide pipes P is T / 200+2; wherein the required number of steel wires Z and the required number of flow guide pipes P are rounded off and taken as integers.

4. A CIPP softening manufacturing process according to claim 2, wherein, In step 5, the flow guide pipe is placed between the two adjacent reinforcing rods.

5. A CIPP soft tube manufacturing process according to claim 1, wherein, In step 6, the resin 100 parts, the initiator 2-4 parts and the ultraviolet promoter 2-5 parts are weighed according to the proportion, stirred for 5 min -20 min, left for 5 min -35 min, vacuumized for 10 min -90 min, and the glue is mixed and blended, ready for use.

6. A CIPP soft tube manufacturing process according to claim 1, wherein, In step 8, the vacuum degree is detected to ensure that the dry pipe has no leakage point, and the pressure is -0.04MPa~-0.1 MPa.

7. A process for making a CIPP soft tube according to any one of claims 1-6, characterized in that, Including several guide tubes, several steel wires and electromagnetic three-way valves, the guide tube is used to guide out the slurry, one end of the guide tube is provided with a tapered head, the inside is provided with a hollow structure, a plurality of overflow holes are uniformly arranged on the guide tube, the other end of the guide tube is connected with one end of the glue pouring pipe, the other end of the pipe pouring is connected with one end of the electromagnetic three-way valve, the other two ends of the electromagnetic three-way valve are connected with the glue pouring pump and the vacuum pump respectively, a plurality of steel wires are uniformly arranged on the guide tube and are used for fixing the guide tube, the steel wires away from the tapered head of the guide tube are connected with the traction ropes at both ends, and the other end of the traction rope is inserted from the glue pouring pipe and is pulled out from the one end of the electromagnetic three-way valve connected with the glue pouring pump.

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