A kind of nitric acid connecting pipe of good airproof performanceTechnical field
The utility model is related to nitric acid technical field of transportation, the nitric acid connecting pipe of specially a kind of good airproof performance.
Background technology
Nitric acid be it is a kind of there is strong oxidizing property, corrosive strong acid, belong to unitary inorganic strong acid, be six big inorganic acids itOne and a kind of important industrial chemicals, it industrially can be used for inhibition and generation fertilizer, pesticide, explosive, dyestuff, salt etc.；It is organisingIn, the mixed liquor of concentrated nitric acid and the concentrated sulfuric acid is important nitrating agent, and aqueous solution is commonly called as nitric acid or ammonia nitrogen water, nitric acidAcid anhydrides is dinitrogen pentoxide.
Nitric acid needs to use pipeline during transport, but existing nitric acid connecting pipe is in connection, to pipeThe sealing effect in road is bad, results in the phenomenon that nitric acid leaks during transport, is unfavorable for the transport to nitric acid, noIt is user-friendly, bring huge economic loss to enterprise.
Utility model content
The purpose of this utility model is to provide a kind of nitric acid connecting pipes of good airproof performance, have the excellent of good airproof performancePoint, solve existing nitric acid connecting pipe connection when, it is bad to the sealing effect of pipeline, result in nitric acid transport mistakeOccurs the problem of leakage phenomenon in journey.
To achieve the above object, the utility model provides the following technical solutions：A kind of nitric acid connecting pipe of good airproof performance,Including connecting tube, the first flange that passes on left of the connecting tube is communicated with first pipe, and the right side of the connecting tube passes throughTwo flanges are communicated with second pipe, and the connecting tube both sides offer the first groove, the right side of the first pipe and secondThe left side of pipeline offers the second groove, and the inner cavity of first groove is provided with the first sealing ring, first sealing ringSide far from the first groove extends to the inner cavity of the second groove, and the inner wall of the connecting tube is fixedly connected with fixing pipe, describedThe both sides of fixing pipe offer card slot, and the side of the card slot inner cavity is provided with the second sealing ring, the first pipe it is interiorThe inner wall of wall and second pipe is fixedly connected with the card pipe being used cooperatively with card slot, and two cards are managed side close to each other and prolongedIt extends to the inner cavity of card slot and is contacted with the second sealing ring, inner wall and the card pipe of first sealing ring are slidably connected, the connectionThe both sides in tube top portion offer the first threaded hole, and the position of the top of the card pipe and corresponding first threaded hole offers secondThe position of threaded hole, the top of the fixing pipe and corresponding second threaded hole offers thread groove, first threaded hole, secondThe thread in inner cavity of threaded hole and thread groove is connected with bolt, and the top of connecting tube is extended at the top of the bolt.
Preferably, the bottom of the fixing pipe both sides offers limiting slot, and the bottom of the card tube cavity is fixedly connected withThe limited block being used cooperatively with limiting slot.
Preferably, the surface of the bolt and rubber sheet gasket is arranged at the top of the connecting tube, the rubber sheet gasketTop and threaded bolt contacts.
Preferably, be fixedly connected with locating piece at the top and bottom of the card tube cavity, the side of the locating piece withFixing pipe contacts.
Preferably, the surface of the bolt is provided with external screw thread, and first threaded hole, the second threaded hole and thread groove are equalIt is provided with internal thread compatible with external screw thread.
Compared with prior art, the beneficial effects of the utility model are as follows：
1, the utility model by the first groove, the second groove, the first sealing ring, fixing pipe, card slot, the second sealing ring,Block being used cooperatively for pipe, the first threaded hole, the second threaded hole, thread groove and bolt, solves existing nitric acid connecting pipe and existIt is bad to the sealing effect of pipeline when connection, it results in nitric acid and the problem of leakage phenomenon occurs during transport, the sealingThe good nitric acid connecting pipe of property, has the advantages of good airproof performance, is conducive to the transport to nitric acid, the use for the person of being convenient to use,Substantially reduce the economic loss of enterprise.
2, the utility model plays the role of limiting connecting tube, user by the setting of limiting slot and limited blockWhen connecting tube to be connect with first pipe and second pipe, quickly connecting tube can be positioned, the person of being convenient to useUse avoid what bolt occurred bonding together with connecting tube after a protracted use by the setting of rubber sheet gasketPhenomenon extends the service life of bolt, passes through the setting of locating piece so that the second threaded hole on card pipe can be with the first spiral shellPit and thread groove alignment, play the role of positioning card pipe.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the partial enlarged view of A in the utility model Fig. 1.
In figure：1, connecting tube；2, first flange；3, first pipe；4, second flange；5, second pipe；6, the first groove；7, the second groove；8, the first sealing ring；9, fixing pipe；10, card slot；11, the second sealing ring；12, card pipe；13, the first threaded hole；14, the second threaded hole；15, thread groove；16, bolt；17, limiting slot；18, limited block；19, rubber sheet gasket；20, locating piece.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility modelClearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than wholeEmbodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative workThe every other embodiment obtained, shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of nitric acid connecting pipe of good airproof performance, packetConnecting tube 1 is included, the first flange 2 that passes on left of connecting tube 1 is communicated with first pipe 3, and the right side of connecting tube 1 passes through second flange4 are communicated with second pipe 5, and 1 both sides of connecting tube offer the first groove 6, the left side on the right side and second pipe 5 of first pipe 3Side offers the second groove 7, and the inner cavity of the first groove 6 is provided with the first sealing ring 8, and the first sealing ring 8 is far from the first groove 6Side extend to the inner cavity of the second groove 7, the inner wall of connecting tube 1 is fixedly connected with fixing pipe 9, and the both sides of fixing pipe 9 are openedEquipped with card slot 10, the side of 10 inner cavity of card slot is provided with the second sealing ring 11, the inner wall of first pipe 3 and second pipe 5 it is interiorWall is fixedly connected with the card pipe 12 being used cooperatively with card slot 10, and two sides close to each other of card pipe 12 all extend to card slot 10Inner cavity and contacted with the second sealing ring 11, inner wall and the card pipe 12 of the first sealing ring 8 are slidably connected, the two of the top of connecting tube 1Side offers the first threaded hole 13, and the position of the top of card pipe 12 and corresponding first threaded hole 13 offers the second threaded hole14, the position of the top of fixing pipe 9 and corresponding second threaded hole 14 offers thread groove 15, the first threaded hole 13, the second screw threadThe thread in inner cavity of hole 14 and thread groove 15 is connected with bolt 16, and the top of bolt 16 extends to the top of connecting tube 1.
In the utility model：The bottom of 9 both sides of fixing pipe offers limiting slot 17, and the bottom of 12 inner cavity of card pipe is fixedly connectedThere is the limited block 18 being used cooperatively with limiting slot 17, by the setting of limiting slot 17 and limited block 18, plays and connecting tube 1 is limitedPosition effect, user when connecting tube 1 is connect with first pipe 3 and second pipe 5, can quickly to connecting tube 1 intoRow positioning, the use for the person of being convenient to use.
In the utility model：The surface of bolt 16 and it is arranged with rubber sheet gasket 19, rubber sheet gasket positioned at the top of connecting tube 119 top is contacted with bolt 16, by the setting of rubber sheet gasket 19, avoid bolt 16 occur after a protracted use withThe phenomenon that connecting tube 1 bonds together extends the service life of bolt 16.
In the utility model：It has been fixedly connected with locating piece 20 at the top and bottom of 12 inner cavity of card pipe, the one of locating piece 20Side is contacted with fixing pipe 9, passes through the setting of locating piece 20 so that the second threaded hole 14 on card pipe 12 can be with the first threaded hole13 and thread groove 15 be aligned, play the role of to card pipe 12 position.
In the utility model：The surface of bolt 16 is provided with external screw thread, the first threaded hole 13, the second threaded hole 14 and screw threadSlot 15 is both provided with internal thread compatible with external screw thread.
Operation principle：When the utility model is used, the second sealing ring 11 is placed on the inner cavity of card slot 10 by user first,Then first sealing ring 8 is set in the surface of card pipe 12, then first pipe 3 and second pipe 5 are injected in connecting tube 1Chamber so that the first sealing ring 8 sticks into the inner cavity of the first groove 6 and the second groove 7, and locating piece 20 is contacted with fixing pipe 9, is madeIt obtains the first threaded hole 13, the second threaded hole 14 and thread groove 15 to be aligned, finally by bolt 16 to connecting tube 1, fixing pipe 9 and cardPipe 12 is fixed, and connecting tube 1 and first pipe 3 are fixed by first flange 2, by second flange 4 to evenTake over 1 and second pipe 5 are fixed, and then have reached the nitric acid connecting pipe and had preferable sealing effect.
In summary：The nitric acid connecting pipe of the good airproof performance passes through the first groove 6, the second groove 7, the first sealing ring8, fixing pipe 9, card slot 10, the second sealing ring 11, card pipe 12, the first threaded hole 13, the second threaded hole 14, thread groove 15 and bolt16 be used cooperatively, solves existing nitric acid connecting pipe in connection, bad to the sealing effect of pipeline, results in nitric acidThere is the problem of leakage phenomenon during transport.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiiedChange, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.