阅读说明：本技术 一种用于连接连续纤维增强聚乙烯复合管的球墨铸铁管件 (It is a kind of for connecting the nodular cast iron pipe fittings of continuous fiber reinforcement polyethylene compound pipe ) 是由 周占虎 官振兴 鲍海东 于 2019-09-04 设计创作，主要内容包括：一种用于连接连续纤维增强聚乙烯复合管的球墨铸铁管件,所述的盘承短管一端与连续纤维增强聚乙烯复合管连接,盘承短管另一端通过盘承短管的法兰与阀门连接；所述的双承单支盘正三通的两端分别与连续纤维增强聚乙烯复合管连接,双承单支盘正三通的上部法兰与排气阀连接；所述的双承单支盘排泥三通的两端分别与连续纤维增强聚乙烯复合管连接,双承单支盘排泥三通的右部法兰与排泥阀连接。该发明解决管材与阀门、消火栓、排气阀、排泥阀的安装以及管线转角问题,降低管件粗糙系数,使用无溶剂液态环氧无气喷涂技术做内防腐,提高寿命,保证质量,粗糙系数与复合管一致,应用于输水的管材技术领域中。(It is a kind of for connecting the nodular cast iron pipe fittings of continuous fiber reinforcement polyethylene compound pipe, the disk holds short tube one end and connect with continuous fiber reinforcement polyethylene compound pipe, and disk holds the short tube other end and connect by the flange that disk holds short tube with valve；Double both ends for holding the positive threeway of single support are connect with continuous fiber reinforcement polyethylene compound pipe respectively, and double upper flanges for holding the positive threeway of single support are connect with exhaust valve；Double both ends for holding single support spoil disposal threeway are connect with continuous fiber reinforcement polyethylene compound pipe respectively, and double right part flanges for holding single support spoil disposal threeway are connect with mud valve.The invention solves the problems, such as tubing and valve, fire hydrant, exhaust valve, the installation of mud valve and pipeline corner, reduce the pipe fitting coefficient of roughness, interior anti-corrosion is done using solvent-free liquid epoxy airless spraying technology, improve the service life, guarantee quality, the coefficient of roughness is consistent with multiple tube, applied in the tubing technical field of water delivery.)

1. a kind of for connecting the nodular cast iron pipe fittings of continuous fiber reinforcement polyethylene compound pipe, including disk holds short tube, valve, double It holds the positive threeway of single support, exhaust valve, double hold that the threeway of single support spoil disposal, mud valve, double to hold bend pipe, continuous fiber reinforcement polyethylene multiple Close pipe, it is characterised in that: the disk holds short tube one end and connect with continuous fiber reinforcement polyethylene compound pipe, and it is another that disk holds short tube End is connect by the flange that disk holds short tube with valve；Described double both ends for holding the positive threeway of single support respectively with continuous fiber reinforcement Polyethylene compound pipe connection, double upper flanges for holding the positive threeway of single support are connect with exhaust valve；It is described double to hold single support spoil disposal The both ends of threeway are connect with continuous fiber reinforcement polyethylene compound pipe respectively, double right part flanges for holding single support spoil disposal threeway and row Slurry valve connection；Double both ends for holding bend pipe are connect with continuous fiber reinforcement polyethylene compound pipe respectively.

2. it is according to claim 1 a kind of for connecting the nodular cast iron pipe fittings of continuous fiber reinforcement polyethylene compound pipe, It is characterized by: described is a kind of for connecting the casting method of the nodular cast iron pipe fittings of continuous fiber reinforcement polyethylene compound pipe It is:

(1) corresponding pipe fitting mold, running channel, sprue cup mold are designed and produced according to product drawing, specifically can by technique requirement with Meaning collocation；

(2) model is prepared using foam forming machine, the evaporative pattern pressed is put into white mould drying room, it is spare after drying；

(3) model prepared is rationally bonded, alphabetical producer is bonded according to customer requirement and indicates corresponding information；

(4) one layer will be coated outside the model assembled has certain thickness fireproof coating, and is sent into drying room and is dried；

(5) by the model dried by technique requirement negative-pressure flask, and bonding running channel, sprue cup；Negative-pressure flask, which is equipped with, to be taken out Vacuum tube, the adjusting control valve door in vacuum pump work control vacuum magnitude；

(6) filling dry sand and ram-jolt vacuumizes after overlay film, and the process for filling dry sand is the ram-jolt in back-up sand, sandbox fill up after Upper surface covers thick plastic film seal, vacuumizes consolidation molding sand；

(7) it by the molten iron prepared under negative pressure injection model, is poured under -0,7bar pressure, not only makes alloy structure more Densification, and it is more environmentally friendly；

(8) 6 minutes closing negative pressure after being poured, after natural cooling 2 hours, casting is taken out from sandbox；

(9) ball blast sand removal is carried out to casting, reconditioning burr detects appearance and size；

(10) machine tooling bellmouth inner surface and flange are used by drawing；

(11) hydraulic pressure test is carried out to pipe fitting；

(12) after size, appearance, hydraulic test are qualified, pipe fitting is carried out using liquid solvent-free epoxy airless spraying technology interior anti- It is rotten；Outer brush zinc rich primer increases haloflex finishing coat；

(13) it is packed after spraying shipping mark, is put in storage ready for delivery.

3. it is according to claim 1 a kind of for connecting the nodular cast iron pipe fittings of continuous fiber reinforcement polyethylene compound pipe, It is characterized by: a kind of nodular cast iron pipe fittings for connecting continuous fiber reinforcement polyethylene compound pipe include disk hold it is short Pipe double hold the positive threeway of single support, double hold the threeway of single support spoil disposal, double holds bend pipe；The disk holds short tube, double holds single support positive three It is logical, double hold the threeway of single support spoil disposal, double bend pipe class pipe fittings that hold are monoblock cast.

Technical field

The present invention relates to one of tubing technical fields of water delivery for connecting continuous fiber reinforcement polyethylene compound pipe Nodular cast iron pipe fittings, be particularly used for realize continuous fiber reinforcement polyethylene compound pipe road installation valve, exhaust valve, disappear The functions such as fiery bolt and corner.

Background technique

Currently, there are many tubing for water delivery, including ductile iron pipe, steel pipe, prestressed concrete cylinder pipe pipe of cement, glass reinforced plastic Pipe, PE pipe, pvc pipe etc., each have their own advantage and disadvantage of these tubing and the scope of application.Continuous fiber reinforcement polyethylene compound pipe is The modified tubing listed recently, compared with traditional PE pipe, intensity, rigidity are all greatly improved, and connection type uses soft Property the connection of cushion rubber socket joint, the connection between tubing is very convenient reliable.But to connect with valve, fire hydrant, exhaust valve, mud valve It connects and when corner occurs for pipeline, needs to use pipe fitting, and use this material manufacture pipe fitting of continuous fiber reinforcement polyethylene Difficulty is very big, and performance is also unreliable, also cannot achieve batch production at present.For this problem, we are referring to GB/T13295 " water and combustion gas ductile iron pipe, pipe fitting and attachment " and BS the EN 12842 " ductile iron pipe of connection PVC-U pipe and PE pipe Part-requirement and test method ", design and develop a kind of spheroidal graphite of continuous fiber reinforcement polyethylene compound pipe for flexible connection Cast iron pipe fittings is able to solve this tubing and valve, fire hydrant, exhaust valve, the installation of mud valve and pipeline corner etc. and asks Topic.Therefore, research and develop a kind of nodular cast iron pipe fittings for connecting continuous fiber reinforcement polyethylene compound pipe be always it is anxious to The new issue of solution.

Summary of the invention

The purpose of the present invention is to provide a kind of for connecting the ductile iron pipe of continuous fiber reinforcement polyethylene compound pipe Part, the invention solve the problems, such as this tubing and valve, fire hydrant, exhaust valve, the installation of mud valve and pipeline corner, are The pipe fitting coefficient of roughness is reduced, nodular cast iron pipe fittings do interior anti-corrosion using solvent-free liquid epoxy airless spraying technology, improve pipe fitting Service life, guarantee the quality of water delivery.

The object of the present invention is achieved like this: a kind of spheroidal graphite casting for connecting continuous fiber reinforcement polyethylene compound pipe Iron pipe part, including disk hold short tube, valve, double hold the positive threeway of single support, exhaust valve, double hold single support spoil disposal threeway, mud valve, double Bend pipe, continuous fiber reinforcement polyethylene compound pipe are held, the disk holds short tube one end and continuous fiber reinforcement polyethylene compound pipe Connection, disk hold the short tube other end and are connect by the flange that disk holds short tube with valve；Double both ends for holding the positive threeway of single support It is connect respectively with continuous fiber reinforcement polyethylene compound pipe, double upper flanges for holding the positive threeway of single support are connect with exhaust valve；Institute The double both ends for holding single support spoil disposal threeway stated are connect with continuous fiber reinforcement polyethylene compound pipe respectively, double to hold single support spoil disposal The right part flange of threeway is connect with mud valve；Described double both ends for holding bend pipe respectively with continuous fiber reinforcement polyethylene compound pipe Connection；

A kind of casting method for connecting the nodular cast iron pipe fittings of continuous fiber reinforcement polyethylene compound pipe is:

(1) corresponding pipe fitting mold, running channel, sprue cup mold are designed and produced according to product drawing, specifically can by technique requirement with Meaning collocation；

(2) model is prepared using foam forming machine, the evaporative pattern pressed is put into white mould drying room, it is spare after drying；

(3) model prepared is rationally bonded, alphabetical producer is bonded according to customer requirement and indicates corresponding information；

(4) one layer will be coated outside the model assembled has certain thickness fireproof coating, and is sent into drying room and is dried；

(5) by the model dried by technique requirement negative-pressure flask, and bonding running channel, sprue cup；Negative-pressure flask, which is equipped with, to be taken out Vacuum tube, the adjusting control valve door in vacuum pump work control vacuum magnitude；

(6) filling dry sand and ram-jolt vacuumizes after overlay film, and the process for filling dry sand is the ram-jolt in back-up sand, sandbox fill up after Upper surface covers thick plastic film seal, vacuumizes consolidation molding sand；

(7) it by the molten iron prepared under negative pressure injection model, is poured under -0,7bar pressure, not only makes alloy structure more Densification, and it is more environmentally friendly；

(8) 6 minutes closing negative pressure after being poured, after natural cooling 2 hours, casting is taken out from sandbox；

(9) ball blast sand removal is carried out to casting, reconditioning burr detects appearance and size；

(10) machine tooling bellmouth inner surface and flange are used by drawing；

(11) hydraulic pressure test is carried out to pipe fitting；

(12) after size, appearance, hydraulic test are qualified, pipe fitting is carried out using liquid solvent-free epoxy airless spraying technology interior anti- It is rotten；Outer brush zinc rich primer increases haloflex finishing coat；

(13) it is packed after spraying shipping mark, is put in storage ready for delivery；

A kind of nodular cast iron pipe fittings for connecting continuous fiber reinforcement polyethylene compound pipe include that disk holds short tube, double holds The positive threeway of single support double hold the threeway of single support spoil disposal, double holds bend pipe；The disk holds short tube, double hold the positive threeway of single support, double holds The threeway of single support spoil disposal, double bend pipe class pipe fittings that hold are monoblock cast.

The structure and casting method of the invention for being characterized by it.

A kind of nodular cast iron pipe fittings for connecting continuous fiber reinforcement polyethylene compound pipe compared with prior art, have At low cost, structure is simple, handling ease, assembly are quick, solve tubing and valve, fire hydrant, exhaust valve, mud valve installation with And pipeline corner problem, to reduce the pipe fitting coefficient of roughness, nodular cast iron pipe fittings use solvent-free liquid epoxy airless spraying technology Interior anti-corrosion is done, the service life of pipe fitting is improved, guarantees the quality of water delivery, it the advantages that coefficient of roughness and multiple tube are almost the same, will It is widely used in the tubing technical field of water delivery.

Detailed description of the invention

The following describes the present invention in detail with reference to the accompanying drawings and embodiments.

Fig. 1 is the structural schematic diagram that disk of the invention holds short tube.

Fig. 2 is that disk of the invention holds short tube and valve, continuous fiber reinforcement polyethylene compound pipe attachment structure schematic diagram.

Fig. 3 is double structural schematic diagrams for holding the positive threeway of single support of the invention.

Fig. 4 is of the invention double to hold the positive threeway of single support and connect knot with exhaust valve, continuous fiber reinforcement polyethylene compound pipe Structure schematic diagram.

Fig. 5 is double structural schematic diagrams for holding single support spoil disposal threeway of the invention.

Fig. 6 is the left view of Fig. 5.

Fig. 7 is of the invention double to hold the threeway of single support spoil disposal and continuous fiber reinforcement polyethylene compound pipe connection structure is illustrated Figure.

Fig. 8 is of the invention double to hold the threeway of single support spoil disposal and mud valve attachment structure schematic diagram.

Fig. 9 is double structural schematic diagrams for holding bend pipe of the invention.

Figure 10 is of the invention double to hold bend pipe and continuous fiber reinforcement polyethylene compound pipe attachment structure schematic diagram.

Specific embodiment

It is a kind of for connecting the nodular cast iron pipe fittings of continuous fiber reinforcement polyethylene compound pipe referring to attached drawing, including disk is held Short tube 1, valve 2, it is double hold the positive threeway 3 of single support, exhaust valve 4, it is double hold single support spoil disposal threeway 5, mud valve 6, it is double hold bend pipe 7, Continuous fiber reinforcement polyethylene compound pipe 8, the disk hold 1 one end of short tube and connect with continuous fiber reinforcement polyethylene compound pipe 8, Disk holds 1 other end of short tube and is connect by the flange that disk holds short tube 1 with valve 2；Double both ends for holding the positive threeway 3 of single support point It is not connect with continuous fiber reinforcement polyethylene compound pipe 8, double upper flanges for holding the positive threeway 3 of single support are connect with exhaust valve 4；Institute The double both ends for holding single support spoil disposal threeway 5 stated are connect with continuous fiber reinforcement polyethylene compound pipe 8 respectively, double to hold single support row The right part flange of mud threeway 5 is connect with mud valve 6；Described double both ends for holding bend pipe 7 respectively with continuous fiber reinforcement polyethylene Multiple tube 8 connects.

A kind of casting method for connecting the nodular cast iron pipe fittings of continuous fiber reinforcement polyethylene compound pipe is:

(1) corresponding pipe fitting mold, running channel, sprue cup mold are designed and produced according to product drawing, specifically can by technique requirement with Meaning collocation；

(2) model is prepared using foam forming machine, the evaporative pattern pressed is put into white mould drying room, it is spare after drying；

(3) model prepared is rationally bonded, alphabetical producer is bonded according to customer requirement and indicates corresponding information；

(4) one layer will be coated outside the model assembled has certain thickness fireproof coating, and is sent into drying room and is dried；

(5) by the model dried by technique requirement negative-pressure flask, and bonding running channel, sprue cup；Negative-pressure flask, which is equipped with, to be taken out Vacuum tube, the adjusting control valve door in vacuum pump work control vacuum magnitude；

(6) filling dry sand and ram-jolt vacuumizes after overlay film, and the process for filling dry sand is the ram-jolt in back-up sand, sandbox fill up after Upper surface covers thick plastic film seal, vacuumizes consolidation molding sand；

(7) it by the molten iron prepared under negative pressure injection model, is poured under -0,7bar pressure, not only makes alloy structure more Densification, and it is more environmentally friendly；

(8) 6 minutes closing negative pressure after being poured, after natural cooling 2 hours, casting is taken out from sandbox；

(9) ball blast sand removal is carried out to casting, reconditioning burr detects appearance and size；

(10) machine tooling bellmouth inner surface and flange are used by drawing；

(11) hydraulic pressure test is carried out to pipe fitting；

(12) after size, appearance, hydraulic test are qualified, pipe fitting is carried out using liquid solvent-free epoxy airless spraying technology interior anti- It is rotten；Outer brush zinc rich primer increases haloflex finishing coat；

(13) it is packed after spraying shipping mark, is put in storage ready for delivery.

A kind of nodular cast iron pipe fittings for connecting continuous fiber reinforcement polyethylene compound pipe include that disk holds short tube 1, double to hold the positive threeway 3 of single support, double hold single support spoil disposal threeway 5, double hold bend pipe 7；The disk holds short tube 1, double holds single support Positive threeway 3, it is double hold single support spoil disposal threeway 5, double 7 class pipe fittings of bend pipe that hold are monoblock cast.