Purging and targeting device for compressed air energy storage large-diameter pipeline

Abstract

A purging and targeting device of a compressed air energy storage large-diameter pipeline comprises target plates and is characterized by further comprising a double-end target rod with the two ends capable of being provided with the target plates and target rod sleeves matched with the double-end target rod in a sealing mode, and the two target rod sleeves are fixed to target rod penetrating holes of the pipeline in a radial alignment mode. The double-end target rod penetrates through the target rod sleeve and the pipeline to support the target plate at one end in the pipeline, and connecting lugs are arranged at the two ends of the double-end target rod. Target plates can be installed on the two ends of the double-end target rod, the connecting lugs are arranged at the two ends of the double-end target rod, continuous repeated replacement of the target plates in the target shooting test process is achieved, the target plates in a pipeline can be replaced by pulling the double-end target rod, the angles of the target plates in the pipeline can be adjusted by rotating the double-end target rod, target plate replacement and adjustment operation is simple, and operation is convenient. The efficiency is high, the double-end target rod is not damaged, the target shooting test efficiency is improved, and the service life of the double-end target rod is prolonged.

Description

Technical Field

[0001] The utility model relates to a purging and targeting device for a compressed air energy storage large-diameter pipeline, which is used for purging and targeting testing of a compressed air energy storage large-diameter pipeline. Background Art

[0002] Compressed air energy storage is a large-scale energy storage technology that converts electrical energy into air pressure potential energy and thermal energy of heat storage medium for storage, and converts it back into electrical energy during peak electricity consumption. Before the compressed air energy storage power station is put into operation, the sand, welding slag, rust, scale and other debris accumulated in the equipment and pipelines installed during the manufacturing, transportation, storage and installation process will cause damage to the equipment, pipe bursts and damage to the turbine blades during the operation of the unit. Therefore, it is necessary to purge the pipeline to remove various debris left in the steam pipeline during the manufacturing, transportation, storage and installation process to ensure the safety of the next link. In the process of purging the pipeline with steam, a target plate device is usually used to perform a target test on the steam. Conventional target plate devices are only suitable for purging pipelines with a pipe diameter less than DN1000. The replacement of the target plate generally adopts the method of hammering to disassemble and assemble the target rod to replace the target plate, and the target rod and wrench are used to adjust the angle of the target plate in the pipeline. However, for large-diameter pipelines for compressed air energy storage, the required target rod is longer, larger in diameter, and heavier in weight. The target plate needs to be replaced several times during the steam purge of the pipeline. The replacement of the target plate takes a long time and is labor-intensive, which not only affects the efficiency of the target test, but also the target rod is easily deformed and damaged during the hammering process, and its service life is short. Utility Model Content

[0003] The utility model provides a purge target shooting device for a large-diameter pipeline of compressed air energy storage, which realizes uninterrupted multiple replacement of target plates during the target shooting test. The target plate in the pipeline can be replaced by pulling the double-headed target rod, and the angle of the target plate in the pipeline can be adjusted by rotating the double-headed target rod. The target plate replacement and adjustment operations are simple and efficient without damaging the double-headed target rod, thereby improving the target shooting test efficiency and extending the service life of the double-headed target rod.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The invention discloses a purge target shooting device for a large-diameter pipeline of compressed air energy storage, comprising a target plate, and is characterized in that it also comprises a double-headed target rod with target plates mounted on both ends thereof and a target rod sleeve which is sealed with the double-headed target rod, the two target rod sleeves are radially aligned and fixed on the target rod perforation of the pipeline, the double-headed target rod passes through the target rod sleeve and the pipeline to support the target plate at one end thereof in the pipeline, and both ends of the double-headed target rod have connecting ears.

[0006] Preferably, the double-headed target rod is welded from a seamless steel pipe and a steel plate, two grooves arranged axially in the length direction are provided on the seamless steel pipe, and the steel plate is welded in the grooves to form two target plate grooves on the double-headed target rod that cooperate with the target plate, the two target plate grooves are separated along the axial direction, and the depth of the target plate grooves is greater than the thickness of the target plate.

[0007] Preferably, the steel plate is provided with a threaded mounting hole, the target plate is an aluminum plate with a thickness of 12 to 15 mm, and the target plate is provided with a threaded connection hole corresponding to the threaded mounting hole.

[0008] Preferably, the target rod sleeve comprises a sleeve welded on the target rod through-hole of the pipeline and loosely matched with the double-headed target rod, a connecting flange connected to the sleeve, and a graphite packing clamped between the connecting flange and the sleeve and close to the double-headed target rod.

[0009] Preferably, the outer end of the sleeve has a flange flange folded outward by 90 degrees, the flange flange is connected to the connecting flange by bolts, and the graphite packing is clamped between the flange flange and the connecting flange.

[0010] The beneficial effects of the utility model are:

[0011] The utility model discloses a purge target shooting device for a large-diameter pipeline of compressed air energy storage, wherein two target rod sleeves are respectively fixed on the target rod perforations of the pipeline, the double-headed target rod and the target rod sleeve are sealed and matched, and pass through the target rod sleeve and the pipeline to support a target plate at one end in the pipeline to prevent gas in the pipeline from leaking outward from the target rod perforations, both ends of the double-headed target rod can be installed with target plates, and both ends have connecting ears, before the target shooting test, the target plate is installed at one end of the double-headed target rod, during the target shooting test, the double-headed target rod is passed through the target rod sleeve and the pipeline, and the target plate at one end of the double-headed target rod is supported in the pipeline, when the target plate is replaced, the target plate is first installed at the other end of the double-headed target rod, and then a chain hoist is used to connect the connecting ear at one end of the double-headed target rod and the double-headed target rod is pulled to The target plate at the other end of the double-headed target rod is pulled into the pipeline, and then the target plate at the pulled-out end is replaced. When the target plate is replaced again, the chain hoist is connected to the connecting ear at the other end of the double-headed target rod and the double-headed target rod is pulled to make the replaced target plate enter the pipeline. This reciprocating process makes the target plates at both ends of the double-headed target rod alternately enter the pipeline, thereby realizing uninterrupted multiple replacements of the target plates during the target shooting test. The setting of the connecting ears at both ends of the double-headed target rod facilitates the pulling and rotation of the double-headed target rod. Pulling the double-headed target rod replaces the target plate in the pipeline, and rotating the double-headed target rod adjusts the angle of the target plate in the pipeline. The target plate replacement and adjustment operations are simple and efficient without damaging the double-headed target rod, thereby improving the target shooting test efficiency and extending the service life of the double-headed target rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the purge targeting device installed on the large-diameter pipeline of compressed air energy storage.

[0013] Figure 2Schematic diagram of a double-ended target rod with a target plate installed on one end.

[0014] Figure 3 Schematic diagram of a double-ended target rod.

[0015] Figure 4 This is the front view of the purge targeting device for the large-diameter pipeline of compressed air energy storage installed on the pipeline. DETAILED DESCRIPTION

[0016] Combine the following Figures 1 to 4 The embodiments of the utility model are described in detail.

[0017] The invention discloses a purge target shooting device for a large-diameter pipeline of compressed air energy storage, comprising a target plate 1, characterized in that it also comprises a double-headed target rod 2 on both ends of which the target plate 1 can be installed, and a target rod sleeve 3 which is sealed with the double-headed target rod 2, the two target rod sleeves 3 are radially aligned and fixed on the target rod through-hole of the pipeline 4, the double-headed target rod 2 passes through the target rod sleeve 3 and the pipeline 4 to support the target plate at one end in the pipeline, and both ends of the double-headed target rod 2 have connecting ears 5.

[0018] The above-mentioned purge target shooting device for compressed air energy storage large-diameter pipeline, two target rod sleeves 3 are respectively fixed on the target rod perforations of the pipeline, the double-headed target rod 2 and the target rod sleeve 3 are sealed and matched to pass through the target rod sleeve 3 and the pipeline 4 to support the target plate 1 at one end in the pipeline 4 to prevent the gas in the pipeline 4 from leaking outward from the target rod perforations, both ends of the double-headed target rod 2 can be installed with the target plate 1 and both ends have connecting ears 5, before the target shooting test, the target plate 1 is installed at one end of the double-headed target rod 2, during the target shooting test, the double-headed target rod 1 is passed through the target rod sleeve 3 and the pipeline 4, and the target plate 1 at one end of the double-headed target rod 2 is supported in the pipeline 4, when replacing the target plate, first install the target plate at the other end of the double-headed target rod, and then use a chain hoist to connect the connecting ear 5 at one end of the double-headed target rod 2 and pull the double-headed target rod 2 to The target plate 1 at the other end of the double-headed target rod 2 is pulled into the pipe 4, and then the target plate 1 at the pulled-out end is replaced. When the target plate 1 is replaced again, the chain hoist is connected to the connecting ear 5 at the other end of the double-headed target rod 2 and the double-headed target rod is pulled to make the replaced target plate 1 enter the pipe 4. In this way, the target plates 1 at both ends of the double-headed target rod 2 are alternately entered into the pipe, so that the target plates 1 can be replaced multiple times without interruption during the target shooting test. The setting of the connecting ears 5 at both ends of the double-headed target rod 2 facilitates the pulling and rotation of the double-headed target rod. Pulling the double-headed target rod 2 replaces the target plate 1 in the pipe 4, and rotating the double-headed target rod 2 adjusts the angle of the target plate 1 in the pipe 4. The target plate replacement and adjustment operations are simple and efficient without damaging the double-headed target rod, thereby improving the target shooting test efficiency and extending the service life of the double-headed target rod 2.

[0019] Wherein, the double-headed target rod 2 is welded by a seamless steel pipe 6 and a steel plate 7, two grooves are provided in the seamless steel pipe 6 along the axial direction, and the steel plate 7 is welded in the grooves to form two target plate grooves 21 cooperating with the target plate 1 on the double-headed target rod 2, the two target plate grooves 21 are separated in the axial direction, and the depth of the target plate grooves 21 is greater than the thickness of the target plate 1. The seamless steel plate 6 has good structural strength, and reduces the bending deformation probability of the double-headed target rod 2. Two grooves are cut on the seamless steel pipe 6, and the steel plate 7 is welded in the grooves to form two target plate grooves 21. The target plate 1 is laid flat in the target plate grooves 21 and superimposed on the steel plate 7. The steel plate 7 and the target plate 1 are connected by bolts, and the target plate 1 is installed on the double-headed target rod 2. The steel plate 7 supports and positions the target plate 1, and the detachable connection between the target plate 1 and the double-headed target rod 2 is realized.

[0020] The steel plate 7 has a threaded mounting hole 71, the target plate 1 is an aluminum plate with a thickness of 12 to 15 mm, and the target plate 1 has a threaded connection hole 11 corresponding to the threaded mounting hole 71. The threaded mounting hole 71 and the threaded connection hole 11 enable the target plate 1 to be detachably connected to the double-headed target rod 2, so that the target plate 1 can be replaced easily.

[0021] The target rod sleeve 3 includes a sleeve 8 welded on the target rod perforation of the pipeline and having a clearance fit with the double-headed target rod 2, a connecting flange 9 connected to the sleeve 8, and a graphite packing 10 clamped between the connecting flange and the sleeve 8 and close to the double-headed target rod 2. The sleeve 8 is in clearance fit with the target plate 1 to facilitate the passage of the double-headed target rod 2, and the graphite packing 10 is in close contact with the double-headed target rod 2 to form a seal to prevent the gas in the pipeline 4 from leaking out through the gap between the sleeve 8 and the double-headed target rod 2.

[0022] The outer end of the sleeve 8 has a flange 81 folded outward by 90 degrees, the flange 81 is connected to the connecting flange 9 by bolts, and the graphite packing 10 is clamped between the flange 81 and the connecting flange 9. The graphite packing has good sealing performance and low friction coefficient. The flange 81 and the connecting flange 9 are used to press the graphite packing, and the sealing cooperation between the target rod sleeve 3 and the double-headed target rod 2 is formed by the close contact between the graphite packing 10 and the double-headed target rod 2, which ensures the sealing reliability, reduces the wear of the double-headed target rod 2, and improves the service life of the double-headed target rod 2.

[0023] The above is a complete description of the technical solutions of the embodiments of the utility model in combination with the accompanying drawings. It should be noted that the described embodiments are only part of the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

Claims

1. A purge target shooting device for a large-diameter pipeline of compressed air energy storage, including a target plate, characterized in that: It also includes a double-headed target rod with target plates installed at both ends and a target rod sleeve that seals with the double-headed target rod. The two target rod sleeves are radially aligned and fixed on the target rod perforation of the pipeline. The double-headed target rod passes through the target rod sleeve and the pipeline to support the target plate at one end in the pipeline. Both ends of the double-headed target rod have connecting ears.

2. The purging and targeting device for compressed air energy storage large-diameter pipeline according to claim 1 is characterized in that: The double-headed target rod is welded by a seamless steel pipe and a steel plate. Two grooves are arranged axially in the length direction on the seamless steel pipe. The steel plate is welded in the grooves to form two target plate grooves on the double-headed target rod that match the target plate. The two target plate grooves are separated along the axial direction, and the depth of the target plate grooves is greater than the thickness of the target plate.

3. The purging and targeting device for compressed air energy storage large-diameter pipeline according to claim 2 is characterized in that: The steel plate is provided with threaded mounting holes, the target plate is an aluminum plate with a thickness of 12-15 mm, and the target plate is provided with threaded connection holes corresponding to the threaded mounting holes.

4. The purging and targeting device for compressed air energy storage large-diameter pipeline according to claim 3 is characterized in that: The target rod sleeve comprises a sleeve welded on the target rod through hole of the pipeline and loosely matched with the double-head target rod, a connecting flange connected to the sleeve, and a graphite packing clamped between the connecting flange and the sleeve and close to the double-head target rod.

5. The purging and targeting device for compressed air energy storage large-diameter pipeline according to claim 4 is characterized in that: The outer end of the sleeve is provided with a flange flange folded outward by 90 degrees, the flange flange is connected to the connecting flange by bolts, and the graphite packing is clamped between the flange flange and the connecting flange.

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