CN111141454B - Pressure detector for pipeline component of blast furnace air supply system - Google Patents
Pressure detector for pipeline component of blast furnace air supply system Download PDFInfo
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- CN111141454B CN111141454B CN201911358569.4A CN201911358569A CN111141454B CN 111141454 B CN111141454 B CN 111141454B CN 201911358569 A CN201911358569 A CN 201911358569A CN 111141454 B CN111141454 B CN 111141454B
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- sealing
- side sealing
- upper opening
- seat
- height adjusting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/022—Test plugs for closing off the end of a pipe
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/10—Other details, e.g. blast mains
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
A pressure detector for pipeline components of a blast furnace air supply system comprises a base, a bottom sealing seat, an upper opening sealing device and a side opening sealing device, wherein the bottom sealing seat is fixed on the base, a compressed air pipe is introduced into the bottom sealing seat, and a lower opening sealing gasket is arranged on the bottom sealing seat; the upper opening sealing device comprises a cross beam, an upper opening sealing mechanism and a first supporting vertical frame and a second supporting vertical frame which support the cross beam, wherein the upper opening sealing mechanism is assembled on the cross beam and is provided with an upper opening sealing cover; the side opening sealing device comprises a side sealing mechanism and a side sealing height adjusting mechanism, the side sealing height adjusting mechanism is connected with the side sealing mechanism, and a side sealing cover of the side sealing mechanism seals a side opening of the pipeline component to be detected. The invention can conveniently and rapidly complete the pressure test of various pipeline parts with different specifications, such as expansion joints, elbows, tees, belly pipes and the like which are commonly used in a blast furnace air supply pipeline system, greatly reduce the detection operation time, improve the reliability of a detection result and reduce the labor intensity of workers.
Description
Technical Field
The invention relates to a pressure test device, in particular to a device for detecting the pressure of pipeline parts such as an expansion joint, an elbow, a tee joint, a belly pipe and the like in a blast furnace air supply system.
Background
The blast furnace air supply pipeline system is used for feeding hot air with the temperature of 1450 ℃ and the pressure of 0.5MPa in the hot blast furnace into a hearth of the blast furnace. The blast furnace air supply pipeline system comprises various pipeline components such as pipelines, expansion joints, elbows, tee joints and belly pipes, wherein the pipeline components work under severe working conditions, a pressure test before the pipeline components are put into use is an important detection item, and a production enterprise needs to perform corresponding pressure tests on the pipeline components. The shapes of an expansion joint, an elbow, a tee joint, a belly pipe and the like of a blast furnace air supply pipeline system are different, the inlet and the outlet of some parts have different angles, the drift diameter of some parts is different in size, some parts have three ports, and the side ports are obliquely arranged. In the prior art, the pipeline component for pressure detection is sealed by additionally arranging blind plates at two ports or three ports of the pipeline component, and then a pressure test is carried out. The traditional method needs to consume a large amount of manpower and material resources for loading and unloading the blind plate, so that the detection efficiency is low, and the requirement of a client on the construction period can not be met for the pipeline component with large production capacity.
Disclosure of Invention
The invention aims to provide the pressure detector for the pipeline part of the blast furnace air supply system, which is convenient to operate, high in detection efficiency and wide in application range.
The problem of the invention is realized by the following technical scheme:
a pressure detector for pipeline components of a blast furnace air supply system comprises a base, a bottom sealing seat, an upper opening sealing device and a side opening sealing device, wherein the bottom sealing seat is fixed on the base through bolts, a compressed air pipe is introduced into the bottom sealing seat, and a lower opening sealing gasket matched with a lower opening of a pipeline component to be detected is arranged on the bottom sealing seat; the upper opening sealing device comprises a cross beam, an upper opening sealing mechanism, a first supporting vertical frame and a second supporting vertical frame, wherein the first supporting vertical frame and the second supporting vertical frame support the cross beam; the side opening sealing device comprises a side sealing mechanism and a side sealing height adjusting mechanism, the side sealing height adjusting mechanism is connected with the side sealing mechanism, the side sealing mechanism is provided with a side sealing cover, and the side sealing cover seals a side opening of the pipeline component to be detected.
The pressure detector for the pipeline part of the blast furnace air supply system further comprises a rotating seat, one end of the cross beam is fixedly connected with the rotating seat, an upright post is arranged at the lower part of the rotating seat, the rotating seat is rotatably connected with the upper part of the upright post, the upright post is inserted into the first supporting upright post and can move up and down relative to the first supporting upright post, and the position of the upright post relative to the first supporting upright post is fixed by a first bolt inserted into the first supporting upright post and the upright post; the other end of the cross beam is fixedly connected with a locking rod, the second supporting vertical frame is provided with a locking rod notch for accommodating the locking rod, and the position of the locking rod relative to the locking rod notch is fixed by a second bolt.
The side sealing height adjusting mechanism comprises a height adjusting screw, a height adjusting nut, a side sealing vertical frame and a side sealing cross frame, the side sealing vertical frame is fixed on one side of the base, the height adjusting screw is inserted into the side sealing vertical frame and rotates in situ relative to the side sealing vertical frame, the height adjusting screw and the height adjusting nut are in threaded fit, the height adjusting nut is fixedly connected with the near end of the side sealing cross frame, and the side sealing cross frame is provided with a plurality of pin shaft holes; the side seal mechanism is provided with a crank arm, a side seal adjusting screw rod and a drag hook, one end of the crank arm is hinged with a side seal cross frame through a pin shaft penetrating through a pin shaft hole, a threaded hole matched with the side seal adjusting screw rod is formed in the middle of the crank arm, one end of the side seal adjusting screw rod is connected with a side seal cover, the other end of the side seal adjusting screw rod is connected with a side seal adjusting hand wheel, the two drag hooks are respectively positioned on two sides of the side seal adjusting screw rod, a handle part of the drag hook is connected with the crank arm through a bolt, and a hook part of the drag hook is buckled with a side flange of a tested pipeline component.
According to the pressure detector for the pipeline component of the blast furnace air supply system, the mounting end of the side sealing adjusting screw is in spherical connection with the mounting sleeve of the side sealing cover, the mounting end is provided with the outer annular groove with the circular arc-shaped cross section, the inner annular groove with the circular arc-shaped cross section is arranged in the mounting sleeve, the outer annular groove corresponds to the inner annular groove in position, and the sealing cover is connected with the side sealing adjusting screw through the connecting pin penetrating through the mounting sleeve and the surrounding area of the inner annular groove and the outer annular groove.
Above-mentioned blast furnace air supply system pipeline part pressure measurement machine, suitable for reading sealing mechanism includes fixed cover and compression cylinder, and fixed cover suit is on the entablature, and relative crossbeam is adjustable fixed connection, and the crossbeam is equipped with the transverse groove, and the fixed cover of compression cylinder rigid coupling, compression cylinder piston rod pass fixed cover and transverse groove and suitable for reading sealed lid rigid coupling.
According to the pressure detection machine for the pipeline part of the blast furnace air supply system, the upper opening sealing cover is provided with the upper opening sealing ring.
The side sealing cover of the pressure detector for the pipeline part of the blast furnace air supply system is provided with a side opening sealing ring.
According to the pressure detector for the pipeline component of the blast furnace air supply system, the base is further provided with the jack mounting seat, the jack mounting seat is provided with the electric jack, the electric jack is located on the lower portion of the rotating seat, and the electric jack supports the rotating seat to lift.
The invention is designed for solving the problem that the pressure detection of the pipeline part of the blast furnace air supply system is time-consuming and labor-consuming. The device comprises a bottom sealing seat, an upper opening sealing device and a side opening sealing device, and can be used for rapidly and reliably sealing three ports of a tested pipe fitting, wherein the side opening sealing device is adjustable in sealing angle aiming at the characteristics of the tested pipe fitting. The invention can conveniently and rapidly complete the pressure test of various pipeline parts with different specifications, such as expansion joints, elbows, tees, belly pipes and the like which are commonly used in a blast furnace air supply pipeline system, greatly reduces the detection operation time, improves the reliability of the detection result, reduces the manual labor intensity and can meet the requirement of the client period of batch products.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic structural view of the crank arm;
FIG. 4 is a schematic view of the retractor;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic view of the construction of the side seal cap and the side seal adjustment screw;
fig. 7 is a partial enlarged view at a in fig. 6.
The reference numbers in the figures are: 1. a base, 2, a bottom sealing seat, 3, a compressed air pipe, 4, a first supporting vertical frame, 5, a second supporting vertical frame, 5-1 of a locking rod notch, 6, a side sealing vertical frame, 7, a height adjusting screw rod, 8, a side sealing cross frame, 8-1 of a pin shaft hole, 9, a crank arm, 10, a height adjusting nut, 11, a height adjusting hand wheel, 12, a locking rod, 13, a second pin, 14, a cross beam and 15, the device comprises an upper opening sealing cover, 16, a fixing sleeve, 17, a pressing oil cylinder, 18, a rotating seat, 19, a stand column, 20, a first bolt, 21, an electric jack, 22, a side sealing cover, 22-1, an inner ring groove, 23, a side sealing adjusting screw rod, 23-1, an outer ring groove, 24, a side sealing adjusting hand wheel, 25, a jack mounting seat, 26, a side flange of a pipeline component to be detected, 27, a connecting pin, 28, a pin shaft, 29 and a draw hook.
Detailed Description
Referring to fig. 1 and 2, the invention is used for detecting the pressure of pipeline parts such as expansion joints, elbows, tee joints, belly pipes and the like of a blast furnace air supply pipeline system. The invention comprises a base 1, a bottom sealing seat 2, an upper opening sealing device and a side opening sealing device. The detected pipeline component is placed on the bottom sealing seat, and the lower port of the detected pipeline component is sealed by the bottom sealing seat. The bottom seal receptacle is fixed on the base through the bolt, can change the bottom seal receptacle according to the requirement of detecting pipeline part, and compressed air pipe 3 lets in the bottom seal receptacle through the base, is equipped with the lower mouthful of sealed pad that matches with the pipeline part lower port that is surveyed on the bottom seal receptacle.
Still referring to fig. 1 and 2, the upper port sealing device is used for sealing the upper port of the detected pipeline component and simultaneously plays a role in compressing the detected pipeline component. The upper opening sealing device comprises a cross beam 14, a rotating seat 18, an upper opening sealing mechanism and a first supporting vertical frame 4 and a second supporting vertical frame 5 for supporting the cross beam. The first and second support stands are fixed on both sides of the base, and the upper opening sealing mechanism is assembled on the beam. One end of the beam is fixedly connected with the rotary seat, the lower part of the rotary seat is provided with an upright post 19, and the rotary seat and the upper part of the upright post form a rotary connection relation. The upright post is inserted into the first supporting upright frame and can move up and down relative to the first supporting upright frame, and the position of the upright post relative to the first supporting upright frame is fixed by a first bolt 20 inserted into the first supporting upright frame and the upright post. The other end of the cross beam is fixedly connected with a locking rod 12, the second supporting vertical frame is provided with a vertically arranged locking rod notch 5-1 for accommodating the locking rod, and the position of the locking rod relative to the locking rod notch is fixed by a second bolt 13. And the second bolt is pulled out, and the cross beam can be rotated to hoist the detected pipeline part. The vertical position of the upright post can be adjusted by pulling out the first bolt, so that the detection of pipeline parts with different heights is adapted. Be equipped with jack mount pad 25 on the base, electric jack 21 installs on the jack mount pad, and electric jack corresponds in the roating seat lower part, when the height position of needs adjustment crossbeam, is supported the lift of roating seat by electric jack. The upper opening sealing mechanism comprises a fixed sleeve 16, a pressing oil cylinder 17 and an upper opening sealing cover 15. The fixing sleeve is sleeved on the cross beam, and the fixing sleeve and the cross beam form adjustable fixed connection through the slotted hole and the bolt so as to realize the adjustment of the transverse position of the upper sealing cover. The crossbeam is provided with a transverse groove, the compression oil cylinder is fixedly connected with a fixing sleeve, and a piston rod of the compression oil cylinder penetrates through the fixing sleeve and the transverse groove to be fixedly connected with the upper opening sealing cover 15. The upper sealing cover is provided with an upper sealing ring matched with the upper opening of the pipeline to be detected. The pressing oil cylinder is pressed down, the upper port of the pipeline component to be detected is sealed by the upper port sealing cover, and meanwhile, the pipeline component is pressed on the bottom sealing seat.
Referring to fig. 1-6, a side port sealing device is used to seal a side port of a conduit member having three ports. The side opening sealing device comprises a side sealing mechanism and a side sealing height adjusting mechanism, wherein the side sealing height adjusting mechanism is connected with the side sealing mechanism and drives the side sealing mechanism to adjust the height position so as to meet the sealing requirement of the side opening of the pipeline component to be detected. The side sealing height adjusting mechanism comprises a height adjusting screw 7, a height adjusting nut 10, a side sealing vertical frame 6 and a side sealing transverse frame 8. The side sealing vertical frame is fixed on one side of the base close to the second supporting vertical frame, the height adjusting screw rod is inserted into the side sealing vertical frame, the side sealing vertical frame opposite to the height adjusting screw rod can rotate in situ, the height adjusting screw rod and the height adjusting nut are in threaded fit, and the top of the height adjusting screw rod is connected with the height adjusting hand wheel 11. And rotating the height adjusting hand wheel, rotating the height adjusting screw in situ, and moving the height adjusting nut up and down. The height adjusting nut is fixedly connected with the near end of a side sealing transverse frame 8, the side sealing transverse frame is perpendicular to the side sealing vertical frame and extends forwards, and a plurality of pin shaft holes 8-1 are arranged on the side sealing transverse frame. The side sealing mechanism is provided with a side sealing cover 22, a crank arm 9, a side sealing adjusting screw 24 and a draw hook 29. The side sealing cover is provided with a side opening sealing ring matched with the side opening of the pipeline to be detected. One end of the crank arm is hinged with the side sealing cross frame through a pin shaft 28 penetrating through the pin shaft hole, and the front and back positions of the side sealing cross frame on the opposite side of the crank arm can be changed by arranging the pin shaft holes at different positions. The middle part of the crank arm is provided with a threaded hole matched with a side sealing adjusting screw rod 23, one end of the side sealing adjusting screw rod penetrates through the threaded hole to be connected with a side sealing cover 22, and the other end of the side sealing adjusting screw rod is connected with a side sealing adjusting hand wheel 24. And rotating the side sealing adjusting hand wheel, and moving the side sealing cover back and forth so as to plug the side port of the pipeline component. The two draw hooks are respectively positioned on two sides of the side sealing adjusting screw rod and are perpendicular to the crank arm, the handle part of each draw hook is connected with the crank arm through a bolt with an adjustable position, the bolt draw hooks can rotate by an angle when loosened, after the crank arm drives the side sealing cover to rotate to a sealing position, the hook part of the draw hook is buckled with the side flange 26 of the measured pipeline component, and then the draw hook is screwed through the bolt.
Referring to fig. 2, 6 and 7, the present invention is designed such that the mounting end of the side seal adjusting screw and the mounting sleeve of the side seal cap are spherically coupled in consideration of the side port seal when the side port of the measured pipe member is inclined at an angle α. The mounting end of the side seal adjusting screw rod is provided with an outer ring groove 23-1 with a circular arc-shaped section, an inner ring groove 22-1 with a circular arc-shaped section is arranged in the mounting sleeve of the side seal cover, the positions of the outer ring groove and the inner ring groove correspond to each other, and the seal cover is connected with the side seal adjusting screw rod through a connecting pin 27 penetrating through the mounting sleeve and the surrounding area of the inner ring groove and the outer ring groove. With the structure, the side sealing cover can rotate relative to the side sealing adjusting screw rod by taking the connecting pin as a center, so that the side port of the pipeline component to be tested with the inclined side port can be sealed. The position of the side sealing cover opposite to the side sealing adjusting screw rod can be fixed through a jackscrew.
The pressure detection process of the pipeline component comprises the following steps: 1. and rotating the cross beam out, hoisting the detected pipeline component to the bottom sealing seat, adjusting the height of the cross beam according to the height of the detected pipeline component, and fixing the position of the cross beam after the adjustment is in place. 2. Starting a pressing hydraulic cylinder, pressing an upper opening sealing cover on an upper opening of the pipeline component to be detected, and simultaneously fixing and pressing the pipeline component to be detected; 3. adjusting a side sealing height adjusting mechanism and a side sealing mechanism according to the height, the length and the angle of the side port of the detected pipeline component to enable a side sealing cover to be tightly pressed on the side port of the detected pipeline component; (if the detected component only has an upper port and a lower port, the step 3 is omitted) 4, after checking that each port is sealed correctly, introducing compressed air into the inner cavity of the detected pipeline component, and checking whether each welding bead of the pipeline component leaks.
Claims (4)
1. The utility model provides a blast furnace air supply system pipeline part pressure measurement machine which characterized in that: the device comprises a base (1), a bottom sealing seat, an upper opening sealing device and a side opening sealing device, wherein the bottom sealing seat (2) is fixed on the base through bolts, a compressed air pipe (3) is introduced into the bottom sealing seat, and a lower opening sealing gasket matched with a lower opening of a pipeline component to be detected is arranged on the bottom sealing seat; the upper opening sealing device comprises a cross beam (14), an upper opening sealing mechanism, a first supporting vertical frame (4) and a second supporting vertical frame (5), wherein the first supporting vertical frame and the second supporting vertical frame support the cross beam, the two supporting vertical frames are fixed on two sides of the base, the upper opening sealing mechanism is assembled on the cross beam, and the upper opening sealing mechanism is provided with an upper opening sealing cover (15) for sealing an upper opening of a pipeline component to be tested; the side opening sealing device comprises a side sealing mechanism and a side sealing height adjusting mechanism, the side sealing height adjusting mechanism is connected with the side sealing mechanism, the side sealing mechanism is provided with a side sealing cover (22), and the side sealing cover seals the side opening of the pipeline component to be detected;
the upper opening sealing device also comprises a rotating seat (18), one end of the beam is fixedly connected with the rotating seat, an upright post (19) is arranged at the lower part of the rotating seat, the rotating seat is rotatably connected with the upper part of the upright post, the upright post is inserted into the first supporting upright frame and can move up and down relative to the first supporting upright frame, and the position of the upright post relative to the first supporting upright frame is fixed by a first bolt (20) inserted into the first supporting upright frame and the upright post; the other end of the cross beam is fixedly connected with a locking rod (12), a locking rod notch (5-1) for accommodating the locking rod is arranged on the second supporting vertical frame, and the position of the locking rod relative to the locking rod notch is fixed by a second bolt (13);
a jack mounting seat (25) is further arranged on the base, an electric jack (21) is mounted on the jack mounting seat and located at the lower portion of the rotating seat, and the electric jack supports the rotating seat to lift;
the side sealing height adjusting mechanism comprises a height adjusting screw rod (7), a height adjusting nut (10), a side sealing vertical frame (6) and a side sealing transverse frame (8), the side sealing vertical frame is fixed on one side of the base, the height adjusting screw rod is inserted into the side sealing vertical frame and rotates in situ relative to the side sealing vertical frame, the height adjusting screw rod and the height adjusting nut are in threaded fit, the height adjusting nut is fixedly connected with the near end of the side sealing transverse frame, and a plurality of pin shaft holes are formed in the side sealing transverse frame; the side sealing mechanism is provided with a crank arm (9), a side sealing adjusting screw rod (23) and a drag hook (29), one end of the crank arm is hinged with a side sealing cross frame through a pin shaft penetrating through a pin shaft hole, the middle part of the crank arm is provided with a threaded hole matched with the side sealing adjusting screw rod (23), one end of the side sealing adjusting screw rod is connected with a side sealing cover (22), the other end of the side sealing adjusting screw rod is connected with a side sealing adjusting hand wheel (24), the two drag hooks are respectively positioned at two sides of the side sealing adjusting screw rod, the handle part of the drag hook is connected with the crank arm bolt, and the hook part of the drag hook buckles a side flange of a detected pipeline component;
the mounting end of the side seal adjusting screw rod is connected with the mounting sleeve of the side seal cover in a spherical manner, the mounting end is provided with an outer annular groove (23-1) with a circular arc-shaped cross section, an inner annular groove (22-1) with a circular arc-shaped side cross section is arranged in the mounting sleeve, the outer annular groove and the inner annular groove are corresponding in position, and the seal cover is connected with the side seal adjusting screw rod through a connecting pin (27) penetrating through the mounting sleeve and the surrounding area of the inner annular groove and the outer annular groove.
2. The machine of claim 1, wherein: the upper opening sealing mechanism comprises a fixing sleeve (16) and a pressing oil cylinder (17), the fixing sleeve is sleeved on the upper cross beam, the relative cross beam is fixedly connected in a position-adjustable manner, the cross beam is provided with a transverse groove, the pressing oil cylinder is fixedly connected with the fixing sleeve, and a piston rod of the pressing oil cylinder penetrates through the fixing sleeve and the transverse groove to be fixedly connected with the upper opening sealing cover.
3. The machine of claim 2, wherein: the upper opening sealing cover is provided with an upper opening sealing ring.
4. The machine of claim 3, wherein: the side sealing cover is provided with a side opening sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911358569.4A CN111141454B (en) | 2019-12-25 | 2019-12-25 | Pressure detector for pipeline component of blast furnace air supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911358569.4A CN111141454B (en) | 2019-12-25 | 2019-12-25 | Pressure detector for pipeline component of blast furnace air supply system |
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| CN111141454A CN111141454A (en) | 2020-05-12 |
| CN111141454B true CN111141454B (en) | 2021-10-01 |
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| CN201911358569.4A Active CN111141454B (en) | 2019-12-25 | 2019-12-25 | Pressure detector for pipeline component of blast furnace air supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112304504A (en) * | 2020-11-05 | 2021-02-02 | 新疆八一钢铁股份有限公司 | Method for large-scale blast furnace blow-in airtight and pressure-resistant test |
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| CN109611636A (en) * | 2018-12-29 | 2019-04-12 | 哈电集团（秦皇岛）重型装备有限公司 | Pipe joint sealing device |
| CN209027743U (en) * | 2018-12-11 | 2019-06-25 | 山西省建筑科学研究院 | A kind of building doors and windows detection device |
| CN209736914U (en) * | 2019-03-15 | 2019-12-06 | 漯河鑫世通冶金设备有限公司 | Assembling and positioning tool for air supply elbow of iron-making blast furnace |
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| JPS54128904A (en) * | 1978-03-30 | 1979-10-05 | Sumitomo Metal Ind Ltd | Detecting method for leakage from hot blast pipe |
| CN204575254U (en) * | 2015-03-23 | 2015-08-19 | 石家庄巨力科技有限公司 | A kind of blast furnace air-supply belly pipe weld seam compactness detects frock |
| CN206369627U (en) * | 2016-12-03 | 2017-08-01 | 北京神雾电力科技有限公司 | A kind of three-way diverter valve pressure test process device |
| CN206945241U (en) * | 2017-05-31 | 2018-01-30 | 天津市华利达阀门有限公司 | Bidirectional sealed butterfly valve device for detecting sealability |
| CN207487903U (en) * | 2017-11-23 | 2018-06-12 | 青岛诚达工程检测有限公司 | A kind of cement is effective impermeable and device for detecting sealability |
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