KR200326519Y1 - An apparatus for jointing pipe using double-layered pipe - Google Patents

Abstract

The present invention relates to a double pipe joint connection device that is easily carried out by the coupling device by the coupling device to prevent the rise of fluid temperature due to radiant heat and the blockage due to deterioration fixation occurring in the pipe. In the technical configuration, threads 6 and 6a are formed at both sides of the outer circumference of the coupling bolt 5 on which the polygonal head 4 is formed, and a fluid flow hole is formed inside the coupling bolt 5. (7) of the polygonal to the outer periphery of the fluid supply pipe coupling portion (1) through which the pipe insertion hole (9) is formed on one side thereof and the cooling water supply pipe (10) into which the fluid supply pipe (8) is integrally inserted. The fixing nut 11 is inserted, and a coupling hole 12 is formed in which the screw 6b is integrally formed inside the fixing nut 11 so that the cooling water supply pipe insertion groove 13 is formed at one end thereof. Coupling part 2 and the fluid supply pipe coupling part 1 and the coolant A polygonal head 4a is formed at one side of the coupling body 14 from which both sides protrude so that the air pipe coupling portion 2 is coupled, and the first coupling portion is formed at both ends of the coupling body 14 in the longitudinal direction. 15 and the second coupling part 16 is formed, respectively, a double coupling part in which a plurality of cooling water inlet pipe coupling grooves 18 are formed so that the cooling water inlet pipe 17 is coupled to the periphery of the head 4a. It is made into the point which consists of (3).

Description

Connecting device for pipe joint of double pipe {AN APPARATUS FOR JOINTING PIPE USING DOUBLE-LAYERED PIPE}

The present invention is easily carried out by the coupling device of the double pipe in which the fluid supply pipe is integrally installed inside the cooling water supply pipe, so that the fluid temperature rises due to radiant heat and the blockage due to deterioration fixation in the pipe. It relates to a pipe joint connection device of the double pipe to prevent in advance.

In more detail, the fluid supply pipe coupling portion is formed by protruding the head portion, the threads are formed on both sides thereof, and the fluid flow hole penetrates the inner side, and the pipe insertion hole is installed at one side thereof so that the fluid supply pipe is expanded. And a fixing nut inserted into an outer circumference of the cooling water supply pipe in which the fluid supply pipe is integrally installed therein, and a coupling hole is formed inside the fixing nut to form a cooling water supply pipe insertion groove at one end thereof. The first coupling part and the second coupling part are formed at both ends of the coupling body in which both sides protrude so that the fluid supply pipe coupling part and the cooling water supply pipe coupling part are coupled to each other, and the cooling water inlet pipe is coupled to the periphery of the coupling body. A plurality of cooling water inlet pipe coupling groove is formed.

Accordingly, the temperature rise of the fluid due to radiant heat and deterioration of the pipe due to radiant heat when the fluid is transferred to the high heat place is prevented by cooling the fluid by the cooling water supply pipe installed around the outer side of the fluid supply pipe, thereby preventing the fluid supply pipe. And the cooling water supply pipe is firmly coupled by the double coupling part to prevent leakage through it, and the fluid is always kept at a constant temperature state to prevent equipment failure of the driving device to which the fluid is supplied.

In general, known as hot-rolled heating of steelmaking equipment, when driving equipment such as a playing part and a mini-mill coil box, fluid is continuously supplied to a bearing for driving various equipment to smoothly drive the bearing.

Conventional fluid supply pipes related to this technique is connected to the through groove 52 is formed at the end of the fluid supply pipe 51 for supplying fluid (mainly grease) to various equipment of the high heat location, as shown in FIG. The nut 53 is inserted to form a thread 54 on the periphery of the through groove 52, and a fixing bolt 55 is formed on the outer periphery of the thread 54 to form a thread 54 '. A fluid flow groove 56 is formed at an inner side thereof, and a stepped portion 57 is formed at one end of the fluid flow groove 56 so that the fluid supply pipe 51 is inserted therein, and the outer circumference of the fixing bolt 55 is formed. The polygonal head 58 is integrally formed to protrude integrally so that a thread 54 ″ is integrally formed at one side of the periphery thereof.

The fluid supply pipe as described above is formed in the inner circumference of the connection nut 53 when the end of the fluid supply pipe 51 is inserted into the end step 57 of the fixing bolt 55 to rotate, and then the connection nut 53 is rotated. The screw thread 54 is to be mutually coupled to the screw thread 54` formed on one side of the outer circumference of the fixing bolt 55, and at this time, the contraction ring 59 inserted into the connection nut 53 is compressed and the fluid The fluid is prevented from coming into close contact with the outer wall of the supply pipe 51, and the thread 54 ′ formed on one side of the head 58 of the fixing bolt 55 after the connection nut 53 and the fixing bolt 55 are coupled to each other. `) Is connected to the fluid supply part of the high heat by rotating the polygonal head 58 with a coupling tool (spanner, wrench), etc. to be firmly coupled to supply the fluid.

However, in the fluid supply pipe as described above, the fluid supply pipe 51 is connected to a high heat location, the temperature of the fluid rises by high temperature radiant heat, the viscosity decreases, so the equipment failure is frequently difficult to drive smoothly, When the radiant heat rises, the fluid is fixed at a high temperature, thereby preventing the fluid supply pipe 51 from being able to supply the fluid smoothly, resulting in the interruption of the facility, and the bearing of the driving unit being damaged early.

The present invention is to improve the various problems as described above, and its purpose is to install the temperature rise of the fluid due to the radiant heat and the resulting deterioration of the fluid due to the heat transfer fluid to the high heat location around the outer side of the fluid supply pipe Cooling fluid is prevented by cooling the fluid by the cooling water supply pipe, and the fluid supply pipe and the cooling water supply pipe are firmly coupled by the double coupling part to prevent leakage through it, and the fluid is always driven at a constant temperature to drive the fluid supply. It is to provide a double pipe joint connection device that prevents equipment failure while maximizing bearing life.

1 is a cross-sectional structural view showing a conventional pipe joint apparatus

Figure 2 is a half cross-sectional view showing a double pipe joint device according to the present invention

Figure 3 is a half cross-sectional structure showing an exploded state of the double pipe joint device of the present invention

Figure 4 is a cross-sectional structural view showing the portion A-A` of FIG.

Explanation of symbols on the main parts of the drawings

1.Fluid supply pipe joint 2 ... Cooling water supply joint

3 ... Double coupling part 5 ... Joint bolt

7.Fluid flow hole 8 ... Fluid supply pipe

10 ... Cooling water supply pipe 11 ... Fixing nut

14 ... coupling body 15 ... first coupling part

16.2nd coupling part 17 ... cooling water inlet pipe

19 ... shrink ring

As a technical configuration for achieving the above object, the present invention, the head of the polygon is formed on the outer peripheral side of the coupling bolt, the thread is formed on both sides of the outer periphery, respectively, the fluid flow hole penetrated inside the coupling bolt A polygonal fixing nut is inserted into the fluid supply pipe coupling portion in which the pipe insertion hole is installed to expand the fluid supply pipe into one side thereof and the outer periphery of the cooling water supply pipe in which the fluid supply pipe is integrally installed. A coupling hole is formed inside the nut, and a cooling water supply pipe coupling portion having a cooling water supply pipe insertion groove formed at one end thereof, and a coupling body in which both sides protrude from the fluid supply pipe coupling portion and the cooling water supply pipe coupling portion to protrude in a longitudinal direction thereof. The first coupling portion and the second coupling portion are formed at both ends, respectively, and the cooling water inlet pipe is formed on the outer circumference of the coupling body. By providing a connection device for the pipe joint of the double pipe consisting of a double coupling portion is formed a plurality of cooling water inlet pipe coupling groove.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a half cross-sectional structural view showing a double pipe joint device according to the present invention, Figure 3 is a half cross-sectional structural view showing an exploded state of the double pipe joint device of the present invention, Figure 4 is a AA` part of FIG. As a cross-sectional structural diagram, the present invention is composed of a fluid supply pipe coupling part 1, a cooling water supply pipe coupling part 2, and a double coupling part 3.

The fluid supply pipe coupling part 1 coupled to one end of the fluid supply pipe and connected to the driving unit of the high heat spot is threaded to both sides of the outer circumference of the coupling bolt 5 in which the polygonal head 4 protrudes from one side of the outer circumference. 6) (6a) are formed, respectively, the pipe insertion hole (9) through which the fluid flow hole (7) penetrates inside the coupling bolt (5) so that the fluid supply pipe (8) is expanded to be inserted at one end thereof. Is formed.

The cooling water supply pipe coupling part 2 supporting the cooling water supply pipe in which the fluid supply pipe 8 inserted into the pipe insertion hole 9 is integrally inserted into the inside of the pipe insertion hole 9 has a fluid supply pipe 8 formed therein so as to form a double flow path. A polygonal fixing nut 11 is inserted into the outer periphery of the cooling water supply pipe 10 to be inserted, and a coupling hole 12 in which a screw thread 6b is integrally formed in the fixing nut 11 is formed at one end thereof. The cooling water supply pipe insertion groove 13 is formed to penetrate the supply pipe 8, and the shrinkage ring 19a is inserted into the coupling hole 12.

The fluid supply pipe coupling portion 1 and the cooling water supply pipe coupling portion 2 are respectively coupled to both sides to allow the double coupling portion 3 to simultaneously connect the double pipes to one side of the coupling body 14 on which both sides protrude. A polygonal head portion 4a is formed to protrude, and a tube insertion groove 9a into which the fluid supply pipe 8 is inserted is formed inside the coupling body 14 and a coolant flow groove 21 through which coolant flows. The first coupling part 15 is formed at the front end of the pipe insertion groove 9a so that the thread 6a of the fluid supply pipe coupling part 1 is coupled to the thread 6d, and the cooling water flow groove is formed. A second coupling portion 16 into which the cooling water supply pipe 8 is inserted is formed at the rear end of the 21, and a thread 6e is formed so that the cooling water inlet pipe 17 is coupled to the periphery of the head 4b. A plurality of cooling water inlet pipe coupling grooves 18 are formed, and the contraction ring 19 is inserted into the first coupling portion 15. Word is.

Reference numeral 20 is a sealing bolt coupled to the cooling water inlet pipe 17 to prevent the leakage of the cooling water.

Referring to the operation of the present invention made of such a configuration as follows.

2 to 4, the cooling water supply pipe 10 is formed so that a double pipe to form a flow path having a constant diameter in one pipe line to install an up and down pipe line inside the pipe to have a double flow path integrally By providing the fluid supply pipe 8 inside the pump, the temperature of the fluid (greek) is kept constant inside the fluid supply pipe 8 installed inside the cooling water supply pipe 10 by the cooling water flowing in the cooling water supply pipe 10.

In addition, one end of the fluid supply pipe (8) inserted into the cooling water supply pipe (10) is inserted into the tube insertion hole (9) which is connected to one side of the fluid flow hole (7) of the coupling bolt (5) and enlarged, The screw thread (6) formed on one side of the coupling bolt (5) into which the fluid supply pipe (8) is inserted is connected to the drive unit of a high temperature location by rotating a fastener (spanner, wrench) fixed to the head (4). To supply fluid to the bearings of the drive section.

Subsequently, the thread 6a formed at the other side of the coupling bolt 5 is inserted into the first coupling part 15 formed at the front end of the tube insertion hole 9a of the coupling body 14 to rotate. At this time, the thread 6d formed at the periphery of the first coupling part 15 and the thread 6a of the coupling bolt 5 are mutually coupled, and at this time, the contraction ring of the elastic material inserted into the first coupling part 15. By press-fitting into (19), leakage of the fluid is prevented.

In addition, a thread 6c is formed at the outer circumference of the other side of the coupling body 14 and engages with the thread 6b of the inner circumference of the coupling hole 12 of the fixing nut 11 on which the cooling water supply pipe 10 is supported. At this time, the shrinkage ring 19a inserted into the coupling hole 12 is press-fitted to be in close contact with the cooling water supply pipe 10 to prevent leakage of the cooling water.

When one side of the coupling body 14 is coupled to the fixing nut 11, one end of the cooling water supply pipe 10 in which the fluid supply pipe 8 is installed is inserted into the second coupling part 15. The inlet pipe coupling groove 18 is formed at the periphery of the head portion 4a of the coupling body 14 to form a thread 6e integrally at intervals of 120 ° so that the cooling water is supplied to the cooling water supply pipe 10. The cooling water inlet pipe 17 is screwed, and at this time, the sealing bolt 20 is coupled to the inlet pipe coupling groove 18 formed on the other side of the head portion 4a so that the cooling water is only inside the cooling water supply pipe 10. The coolant flows into the coolant supply pipe 10 through the coolant flow hole 21 formed in one side of the coolant inlet pipe 17 and then introduced into the inlet pipe coupling groove 18.

In addition, when the passage of the fluid supplied to the high thermal element drive unit is coupled to the coupling bolt 5 to the fluid supply, the fluid supply pipe 8 is inserted through the tube insertion groove (9a) to the tube insertion hole of the coupling bolt (5) Shrinkage is inserted into (9), the coupling bolt 5 is inserted into the first coupling portion 15 of the coupling body 14 when the coupling bolt 5 is coupled to the first coupling portion 15 of the double coupling portion (3) The ring 19 is connected to prevent leakage, and the fluid flows through the fluid supply pipe 8. At this time, the cooling water supply pipe 10 installed outside the fluid supply pipe 8 is connected to the coupling body 14. It is firmly fixed to the outside of the fluid supply pipe (8) as well as connected to prevent the leakage of cooling water.

Subsequently, as shown in FIG. 4, the cooling water inlet pipe 17 is coupled to one of the inlet pipe coupling grooves 18 formed at three 120 ° intervals in the head 4a of the coupling body 14. In addition, the other two places are combined with the sealing bolt 20 to seal the cooling water supplied through the cooling water inlet pipe 17 flows only to the cooling water supply pipe 10 to cool the fluid supply pipe 8 to supply the fluid supply pipe 8 By maintaining the temperature of the constant will be to prevent the temperature rise of the fluid flowing inside it.

As described above, in the pipe joint connection device of the double pipe according to the present invention, the coolant is installed around the outer side of the fluid supply pipe to increase the temperature of the fluid due to the radiant heat and the deterioration and fixation of the fluid due to the radiant heat when the fluid is transferred to the high heat location The fluid is cooled by the supply pipe to prevent it in advance, and the fluid supply pipe and the cooling water supply pipe are firmly coupled by the double coupling part to prevent leakage through the fluid, and the fluid is always maintained at a constant temperature so that the fluid is supplied. It prevents equipment failure while maximizing bearing life.

Claims (1)

Threads 6 and 6a are formed at both sides of the outer circumference of the coupling bolt 5 where the polygonal head 4 protrudes, and the fluid flow hole 7 penetrates inside the coupling bolt 5. And a fluid supply pipe coupling part 1 having a pipe insertion hole 9 connected to one side thereof, A fixing nut 11 is inserted into an outer circumference of the cooling water supply pipe 10 into which the fluid supply pipe 8 is inserted, and a coupling hole 12 is formed in which the thread 6b is integrally formed in the fixing nut 11. The through groove 13 is formed at one end thereof, and the cooling water supply pipe coupling portion 2 into which the shrinkage ring 19a is inserted into the coupling hole 12; A head portion 4a is formed at one side of the coupling body 14 formed to connect the fluid supply pipe coupling portion 1 and the cooling water supply pipe coupling portion 2, and the coupling body 14 is extended in the longitudinal direction. A thread 6d is formed at one end thereof to form a first coupling part 15 into which the shrink ring 9a is inserted, and a second coupling part 16 into which the cooling water supply pipe 8 is inserted into the other end. The pipe insertion hole 9 and the coolant flow hole 21 are connected to one side of the first and second coupling parts 15 and 16, respectively, and the coolant inlet pipe 17 is connected to the head 4b. Including a double coupling portion (3) formed with a cooling water inlet pipe coupling groove (18) for coupling, by supplying the cooling water into the cooling water supply pipe (10) through the cooling water inlet pipe (17) Connection device for pipe joint of double pipe, characterized by preventing temperature rise and deterioration of fluid.