CN210218934U

CN210218934U - Acid and alkali resistant nodular cast iron pipe for sewage transportation

Info

Publication number: CN210218934U
Application number: CN201920998056.9U
Authority: CN
Inventors: Zhaoli Li; 李兆利; Guangshun Li; 李广顺; Qishan Zhang; 张其山; Xiaoqiang Qi; 亓效强
Original assignee: Laiwu Gangtong Pipeline Co Ltd
Current assignee: Laiwu Gangtong Pipeline Co Ltd
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2020-03-31
Anticipated expiration: 2029-06-29

Abstract

The utility model discloses an acid and alkali-resistant nodular cast iron pipe for sewage transportation, including first flange, through-hole and first body, the second body is installed to the inboard of first body one side, the mounting is installed in the outside of first body one side, the outside of first body is provided with the second recess, and the inboard of second recess installs the second sealing washer, the external pipe of second flange fixedly connected with is passed through on the top of second body, the unloading carousel is installed to the inboard of connecting pipe. The utility model discloses a first sealing washer is installed to the inboard at the third recess, and the third sealing washer is installed to the inboard of first recess to on the outer wall of second body is all fixed in to the inboard of first sealing washer and third sealing washer, realized making first body and second body be connected the function that the back leakproofness is good, easily use widely.

Description

Acid and alkali resistant nodular cast iron pipe for sewage transportation

Technical Field

The utility model relates to a nodular cast-iron pipe equipment technical field specifically is an acid and alkali-resistant nodular cast-iron pipe for sewage transportation.

Background

The nodular cast iron pipe is used for keeping daily higher pressure fluid such as water, coal gas, atmosphere, oil and heating steam and other nodular cast iron materials used for other purposes, and has the characteristics of smooth inner wall, light weight, corrosion resistance, good anti-scaling function and low cost by one level, the forging process of the nodular cast iron pipe comprises a continuous manufacturing method and a water-cooling centrifugal forging method, the medium water cooling method is used as the modern process, the technical work of the nodular cast iron which does not meet the process is compared with that of the shallow cast iron pipe, the corrosion resistance of the shallow cast iron pipe is not only confronted, and the nodular cast iron pipe has the advantages of high strength, good toughness, thin wall, light weight, impact resistance, large bending function, convenient installation and the like, and the nodular cast iron pipe is well used in China;

although the existing domestic nodular cast iron pipe for sewage transportation has an anti-corrosion layer, the pipe cannot be corroded by any means, but the corrosion rate is slow, but acid and alkali in sewage are seriously unbalanced, the sewage quantity is large, the internal structure of the nodular cast iron pipe is slowly damaged by long-term past corrosion, and the sewage pipeline is troublesome to replace, so that the acid and alkali resistant nodular cast iron pipe for sewage transportation is provided for solving the problems;

and the existing acid and alkali resistant nodular cast iron pipe for sewage transportation does not have the functions of being convenient for splicing and installation, weakening acid and alkali and resisting corrosion and high temperature.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an acid and alkali-resistant nodular cast iron pipe for sewage transportation to the current acid and alkali-resistant nodular cast iron pipe for sewage transportation who proposes in solving above-mentioned background does not have the concatenation of being convenient for installation, weakens the functional problem of acid and alkali nature and corrosion and high temperature resistance.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an acid and alkali-resistant nodular cast iron pipe for sewage transportation, includes first flange, through-hole and first body, the second body is installed to the inboard of first body one side, the mounting is installed in the outside of first body one side, the outside of first body is provided with the second recess, and the inboard of second recess installs the second sealing washer, the top of second body is through the external pipe of second flange fixedly connected with, second flange below is provided with the connecting pipe, and the bottom of connecting pipe extends to the inside of second body, the unloading carousel is installed to the inboard of connecting pipe, the both sides of connecting pipe all are through support piece fixed connection on the inner wall of second body, the inside of first body and second body all evenly is provided with the strengthening rib.

Preferably, the inner side of the first pipe body is provided with a third groove, the inner side of the third groove is provided with a first sealing ring, the inner side of the first pipe body on one side of the third groove is provided with a first groove, the inner side of the first groove is provided with a third sealing ring, and the inner sides of the first sealing ring and the third sealing ring are fixed on the outer wall of the second pipe body.

Preferably, the both ends of second body outer wall all are provided with the draw-in groove, and all install the spring on the both ends inner wall of mounting, the buckle is all installed to the one end of spring, and the equal fixed connection in the inboard of draw-in groove of one end of buckle to buckle and draw-in groove mutually cooperate, constitute fixed knot and construct.

Preferably, the bottom end of the connecting pipe is provided with an acid-base neutralizer storage ball, and through holes are uniformly formed in the outer side of the acid-base neutralizer storage ball.

Preferably, a first flange is installed at the top end of the external pipe, and a second flange is installed at the bottom end of the external pipe.

Preferably, the outer sides of the first pipe body and the second pipe body are both provided with carbon fiber coating layers, the outer sides of the carbon fiber coating layers are coated with epoxy resin coatings, the inner sides of the first pipe body and the second pipe body are coated with fluorocarbon coatings, and the inner sides of the fluorocarbon coatings are coated with polypropylene layers.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the acid-base neutralizing agent storage ball is arranged in the external pipe, the blanking turntable is used for accelerating the falling speed of the neutralizing agent, the connecting pipe is not easy to be blocked, and then the neutralizing agent in the acid-base neutralizing agent storage ball is flushed into sewage through the through hole, so that the acidity and alkalinity of the sewage are weakened, and the subsequent water treatment is facilitated;

(2) meanwhile, the cast iron pipe is provided with a fixing piece, a first pipe body, a first sealing ring, a third sealing ring, a second sealing ring, a third groove, a first groove, a second pipe body, a spring, a buckle and a clamping groove, the fixing piece is fixed on one side of the first pipe body, the first sealing ring, the third sealing ring and the second sealing ring are respectively arranged in the third groove, the first groove and the second groove, one side of the second pipe body is fixed on the inner side of the first pipe body, so that the sealing performance between the first pipe body and the second pipe body is good, and the buckle is fixed in the clamping groove through the deformation of the spring, so that the first pipe body and the second pipe body can be conveniently spliced and installed;

(3) meanwhile, the cast iron pipe is provided with a reinforcing rib, a carbon fiber coating layer, an epoxy resin coating layer, a fluorocarbon coating layer and a polypropylene layer, the cast iron pipe is provided with the reinforcing rib, the reinforcing rib has the effect of reinforcing the iron pipe, and the carbon fiber coating layer can resist the high temperature of more than 3000 ℃ and has outstanding heat resistance The low temperature resistance function, the polypropylene layer is coated to ensure that the pipeline has the functions of heat resistance and corrosion resistance.

Drawings

Fig. 1 is a schematic sectional structure view of a cast iron pipe of the present invention;

fig. 2 is a schematic structural view of the cast iron pipe of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

in the figure: 1. a first pipe body; 2. a first seal ring; 3. a first groove; 4. a fixing member; 5. a spring; 6. a card slot; 7. a second groove; 8. a first flange; 9. an external pipe; 10. a second flange; 11. a second tube body; 12. a second seal ring; 13. buckling; 14. a third seal ring; 15. a third groove; 16. a carbon fiber coating layer; 17. an epoxy resin coating; 18. reinforcing ribs; 19. a polypropylene layer; 20. a fluorocarbon coating; 21. a connecting pipe; 22. a blanking turntable; 23. a support member; 24. acid-base neutralizer storage balls; 25. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: an acid and alkali resistant ductile cast iron pipe for sewage transportation comprises a first flange 8, a through hole 25 and a first pipe body 1, wherein a second pipe body 11 is arranged on the inner side of one side of the first pipe body 1, a fixing part 4 is arranged on the outer side of one side of the first pipe body 1, a third groove 15 is arranged on the inner side of the first pipe body 1, a first sealing ring 2 is arranged on the inner side of the third groove 15, a first groove 3 is arranged on the inner side of the first pipe body 1 on one side of the third groove 15, a third sealing ring 14 is arranged on the inner side of the first groove 3, the inner sides of the first sealing ring 2 and the third sealing ring 14 are fixed on the outer wall of the second pipe body 11, clamping grooves 6 are arranged at two ends of the outer wall of the second pipe body 11, springs 5 are arranged on the inner walls at two ends of the fixing part 4, a buckle 13 is arranged at one end of each spring 5, one end of the buckle 13, a fixing structure is formed, a second groove 7 is arranged on the outer side of the first pipe body 1, a second sealing ring 12 is arranged on the inner side of the second groove 7, the top end of the second pipe body 11 is fixedly connected with an external pipe 9 through a second flange 10, a first flange 8 is arranged on the top end of the external pipe 9, a connecting pipe 21 is arranged below the second flange 10, the bottom end of the connecting pipe 21 extends into the second pipe body 11, a blanking turntable 22 is arranged on the inner side of the connecting pipe 21, two sides of the connecting pipe 21 are fixedly connected to the inner wall of the second pipe body 11 through supporting pieces 23, an acid-base neutralizer storing ball 24 is arranged at the bottom end of the connecting pipe 21, through holes 25 are uniformly arranged on the outer side of the acid-base neutralizer storing ball 24, reinforcing ribs 18 are uniformly arranged inside the first pipe body 1 and the second pipe body 11, the reinforcing ribs 18 have the function of reinforcing the iron pipes, carbon fiber coating layers 16 are respectively arranged on the, the carbon fiber coating layer 16 can resist high temperature of more than 3000 ℃ and has outstanding heat resistance, compared with other materials, the strength of the carbon fiber begins to be reduced only when the temperature is higher than 1500 ℃, the higher the temperature is, the higher the strength of the carbon fiber is, the carbon fiber also has good low temperature resistance, for example, the carbon fiber is not embrittled at the liquid nitrogen temperature, so that the corrosion resistance is obviously enhanced, the outer side of the carbon fiber coating layer 16 is coated with the epoxy resin coating 17, the epoxy resin coating 17 is matched with the carbon fiber coating layer 16, so that the corrosion resistance is further enhanced, the inner sides of the first tube body 1 and the second tube body 11 are coated with the fluorocarbon coating 20, the fluorocarbon coating 20 has the functions of weather resistance, heat resistance and low temperature resistance, the inner side of the fluorocarbon coating 20 is coated with the polypropylene layer 19, and the polypropylene layer 19 enables the pipeline to have the functions of heat resistance and corrosion.

The working principle is as follows: when in use, the fixing part 4 is fixed on one side of the first pipe body 1, then the first sealing ring 2, the third sealing ring 14 and the second sealing ring 12 are respectively arranged in the third groove 15, the first groove 3 and the second groove 7, then one side of the second pipe body 11 is fixed on the inner side of the first pipe body 1, so that the sealing performance between the first pipe body 1 and the second pipe body 11 is good, the buckle 13 is fixed in the clamping groove 6 through the deformation of the spring 5, thereby being convenient for the splicing installation of the first pipe body 1 and the second pipe body 11, the acid-base neutralizer is put into the external pipe 9, the falling speed of the neutralizer is accelerated through the blanking turntable 22, the connecting pipe 21 is not easy to be blocked, then the neutralizer in the acid-base neutralizer storage ball 24 is flushed into the sewage through the through hole 25, thereby weakening the acid-base property of the sewage, being convenient for the water treatment at the back, the cast iron pipe is provided with the reinforcing ribs, the reinforcing rib 18 has the function of reinforcing the iron pipe, the carbon fiber coating layer 16 can resist the high temperature of more than 3000 ℃ and has outstanding heat resistance, compared with other materials, the strength of the carbon fiber begins to decline only when the temperature is higher than 1500 ℃, the higher the temperature is, the higher the strength of the carbon fiber is, the carbon fiber also has good low-temperature resistance, for example, the carbon fiber is not embrittled at the liquid nitrogen temperature, so that the corrosion resistance is obviously enhanced, the epoxy resin coating layer 17 is coated, the epoxy resin coating layer 17 is matched with the carbon fiber coating layer 16, the corrosion resistance is further enhanced, the fluorocarbon coating layer 20 is coated, the fluorocarbon coating layer 20 has the functions of weather resistance, heat resistance and low-temperature resistance, and the polypropylene layer 19 has the functions of heat resistance and corrosion resistance in the pipeline.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an acid and alkali-resistant nodular cast iron pipe for sewage transportation, includes first flange (8), through-hole (25) and first body (1), its characterized in that: a second pipe body (11) is arranged on the inner side of one side of the first pipe body (1), a fixing piece (4) is arranged on the outer side of one side of the first pipe body (1), a second groove (7) is arranged on the outer side of the first pipe body (1), a second sealing ring (12) is arranged on the inner side of the second groove (7), the top end of the second pipe body (11) is fixedly connected with an external pipe (9) through a second flange (10), a connecting pipe (21) is arranged below the second flange (10), the bottom end of the connecting pipe (21) extends to the inside of the second pipe body (11), a blanking turntable (22) is arranged on the inner side of the connecting pipe (21), both sides of the connecting pipe (21) are fixedly connected on the inner wall of the second pipe body (11) through a supporting piece (23), reinforcing ribs (18) are uniformly arranged inside the first pipe body (1) and the second pipe body (11).

2. The acid and alkali resistant ductile cast iron pipe for sewage transport according to claim 1, wherein: the inner side of the first pipe body (1) is provided with a third groove (15), the inner side of the third groove (15) is provided with a first sealing ring (2), the inner side of the first pipe body (1) on one side of the third groove (15) is provided with a first groove (3), the inner side of the first groove (3) is provided with a third sealing ring (14), and the inner sides of the first sealing ring (2) and the third sealing ring (14) are fixed on the outer wall of the second pipe body (11).

3. The acid and alkali resistant ductile cast iron pipe for sewage transport according to claim 1, wherein: both ends of second body (11) outer wall all are provided with draw-in groove (6), and all install spring (5) on the both ends inner wall of mounting (4), buckle (13) are all installed to the one end of spring (5), and the equal fixed connection in the inboard of draw-in groove (6) of one end of buckle (13) to buckle (13) and draw-in groove (6) mutually support, constitute fixed knot and construct.

4. The acid and alkali resistant ductile cast iron pipe for sewage transport according to claim 1, wherein: the bottom end of the connecting pipe (21) is provided with an acid-base neutralizer storage ball (24), and through holes (25) are uniformly formed in the outer side of the acid-base neutralizer storage ball (24).

5. The acid and alkali resistant ductile cast iron pipe for sewage transport according to claim 1, wherein: a first flange (8) is installed on the top end of the external pipe (9), and a second flange (10) is installed at the bottom end of the external pipe (9).

6. The acid and alkali resistant ductile cast iron pipe for sewage transport according to claim 1, wherein: the outer sides of the first pipe body (1) and the second pipe body (11) are provided with carbon fiber coating layers (16), the outer sides of the carbon fiber coating layers (16) are coated with epoxy resin coatings (17), the inner sides of the first pipe body (1) and the second pipe body (11) are coated with fluorocarbon coatings (20), and the inner sides of the fluorocarbon coatings (20) are coated with polypropylene layers (19).