CN117405191A - Gas turbine flowmeter with high leak tightness - Google Patents
Gas turbine flowmeter with high leak tightness Download PDFInfo
- Publication number
- CN117405191A CN117405191A CN202311705634.2A CN202311705634A CN117405191A CN 117405191 A CN117405191 A CN 117405191A CN 202311705634 A CN202311705634 A CN 202311705634A CN 117405191 A CN117405191 A CN 117405191A
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- Prior art keywords
- wall
- fixedly connected
- gas turbine
- threaded
- gear ring
- Prior art date
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Links
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 210000003781 tooth socket Anatomy 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 32
- 238000007789 sealing Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
- G01F15/185—Connecting means, e.g. bypass conduits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/28—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to the technical field of gas turbine flowmeters, and discloses a gas turbine flowmeter with high leak tightness, which comprises a connecting pipe, two connecting flanges and an integrating instrument, wherein a plurality of positioning holes are formed in the outer walls of the connecting flanges, a locking unit and a plurality of positioning units are arranged between the outer walls of the two ends of the connecting pipe and the outer walls of the connecting flanges, and the positioning units are used for positioning and limiting the connecting flanges and an external pipeline through the positioning holes; according to the invention, the locking units are arranged between the two ends of the connecting pipe and the connecting flange, and the locking units drive the locking hooks to move by rotating the single annular gear and matching with the threaded sleeves and the threaded columns, so that the pipeline flange on the outer wall of an external pipeline is clamped by the locking hooks, the installation of the gas turbine flowmeter and the pipeline is realized, and the locking hooks are not easy to loosen when the connecting pipe vibrates due to gas passing through the matching and limiting of the threaded sleeves and the annular gear, so that the connecting pipe is convenient to assemble and disassemble, the tightness of the connection is ensured, and gas leakage is prevented.
Description
Technical Field
The invention relates to the technical field of gas turbine flowmeters, in particular to a gas turbine flowmeter with high leak resistance and high sealing performance.
Background
The gas turbine flowmeter is mainly used for measuring the flow of medium fluid such as nitrogen, oxygen, hydrogen, methane, natural gas, steam and the like in an industrial pipeline, and is hardly influenced by parameters such as fluid density, pressure, temperature, viscosity and the like when measuring the volume flow of working conditions. The gas turbine flowmeter is used in the existing temperature and pressure compensation gas conveying process and is directly arranged on a conveying pipeline, so that the gas conveying quantity can be conveniently metered in the gas conveying process of the pipeline, and the daily management of staff is facilitated.
The prior art is as the patent of publication number CN209166531U discloses a temperature and pressure compensation gas turbine flowmeter, including connecting seat, LED display screen, infrared sensor, controller, pipeline connecting plate, sealing rubber circle and fixed pothook, the intermediate position department on connecting seat upper portion is provided with the fixing base, and the shell is installed on the upper portion of fixing base, and the LED display screen is installed in the front portion of shell, installs infrared sensor on the shell on LED display screen upper portion, and the controller is installed in the left side of shell, installs the pipeline connecting plate on the connecting seat. Through connecting seat, LED display screen, infrared sensor, controller, pipeline connecting plate, sealing rubber circle and the fixed pothook that set up, it is poor with the sealing effect of pipeline junction position department at turbine flowmeter both ends to have solved, and be inconvenient for connect, turbine flowmeter is bright screen display at all times in the use detects data, consumes a large amount of electric energy's problem.
The prior art has obvious beneficial effects, but has the following defects:
the common connected mode of gas turbine flowmeter and pipeline among the prior art adopts bolt and nut cooperation ring flange to be connected gas turbine flowmeter and pipeline, but gaseous at the gas turbine flowmeter that passes through, can produce the vibration, lead to the looseness of independent connection's bolt and nut easily under a period of time, influence the leakproofness of connection, and above-mentioned prior art adopts rotatable fixed pothook to connect gas turbine flowmeter and flange on the pipeline, but fixed pothook does not be equipped with the pulling back force, either lead to unable firm in connection with the pipeline, the leakproofness is poor, or with fixed pothook and flange looks butt joint on the pipeline, lead to difficult dismouting and wearing and easy wearing and tearing, just can't guarantee the leakproofness of connection after the dismouting repeatedly, influence the normal use of gas turbine flowmeter, therefore, the gas turbine flowmeter of leak protection gas high leakproofness has been proposed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the gas turbine flowmeter with high leak tightness, which is convenient for connecting the gas turbine flowmeter with a pipeline, has good connection tightness and ensures the detection accuracy of the gas turbine flowmeter.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a leak protection gas turbine flowmeter of high leakproofness, including the connecting pipe, two flange and totalizer, a plurality of locating holes have been seted up to flange's outer wall, all install locking unit and a plurality of locating unit between flange's the both ends outer wall and flange's the outer wall, the locating unit is through locating hole to flange and external pipeline location restriction, locking unit includes a plurality of fixed sleeves of installing at flange outer wall and a plurality of adapter sleeves of installing at connecting pipe outer wall, sliding connection has the locking hook in the fixed sleeve, locking hook's one end is connected with the connecting block, the other end fixedly connected with screw thread post of connecting block, screw thread post's outer wall threaded connection has the thread bush of rotating connection with the adapter sleeve lateral wall, a plurality of tooth's sockets have been seted up to the outer wall of thread bush, install the ring gear between the outer wall of a plurality of thread bushes, ring gear and tooth socket meshing are connected, a plurality of supporting units for supporting the screw thread post are installed to the outer wall of ring gear and draw bar unit is installed to the outer wall of ring;
the positioning unit comprises an outer tube and a connecting plate, wherein the outer tube is fixedly connected with the side wall of the connecting flange, the outer tube corresponds to one of the positioning holes, the inner wall of the outer tube is slidably connected with an adjusting tube, the inner wall of the adjusting tube is slidably connected with a positioning pin movably connected with the positioning hole, a plurality of spiral arc grooves are formed in the outer wall of the adjusting tube, a plurality of limiting straight grooves corresponding to the spiral arc grooves are formed in the inner wall of the outer tube, the positioning pin is positioned in one end of the adjusting tube, the outer wall of the positioning pin is fixedly connected with a plurality of positioning rods which are slidably connected with the spiral arc grooves and the limiting straight grooves, one end of the adjusting tube is fixedly connected with a gear ring, the upper end side wall of the connecting plate is rotatably connected with a transmission gear, the transmission gear is in meshed connection with the inner gear ring and the gear ring, and a unidirectional limiting unit is arranged on the gear ring.
Preferably, the locking unit further comprises a yielding port formed in one end of the locking hook, the yielding port is rotationally connected with a shaft lever, the connecting block is fixedly connected with the outer wall of the shaft lever, and a plurality of tooth ports are formed in the side wall of one end of the locking hook.
Preferably, the locking unit further comprises torsion springs sleeved at two ends of the shaft rod, and the torsion springs apply external torsion to the locking hooks.
Preferably, the locking unit further comprises two baffle rings, the two baffle rings are fixedly connected with two ends of the threaded sleeve respectively, and the inner gear ring is located between the two baffle rings.
Preferably, the locking unit further comprises a sliding hole formed in the end portion of the threaded column, the supporting unit comprises a supporting plate fixedly connected with the outer wall of the connecting pipe, a sliding rod is fixedly connected to one side of the upper end of the supporting plate, one end of the sliding rod penetrates through the sliding hole, the threaded column is in sliding connection with the outer wall of the sliding rod through the sliding hole, a reinforcing block is fixedly connected to one side of the supporting plate, and the other end of the reinforcing block is fixedly connected with the side wall of the connecting sleeve.
Preferably, the gear ring is half gear, one-way spacing unit is including seting up two spacing spouts at the gear ring outer wall, and sliding connection has the slider in the spacing spout, and fixedly connected with arc pole in the spacing spout, slider sliding connection outside the arc pole, the outer wall fixedly connected with tooth piece of slider, tooth piece and drive gear meshing are connected and slide, and the outer wall cover of arc pole is equipped with the return spring, one end and one side fixed connection of slider of return spring, and the inner wall fixed connection of the other end and spacing spout.
Preferably, the pull rod unit comprises a rotating sleeve connected with the outer wall of the inner gear ring, the rotating sleeve is rotationally connected with rotating rods, the outer wall of one rotating rod is slidably connected with a limiting sleeve, and the limiting sleeve is movably sleeved with the outer wall of the other rotating rod.
Preferably, the directions of the threads on the threaded columns at the two ends of the connecting pipe are opposite, and the directions of the spiral arc grooves on the outer wall of the adjusting pipe correspond to the directions of the threads on the threaded columns at the same end.
Preferably, the pull rod unit further comprises a threaded rod fixedly connected with one side of the rotating sleeve, the outer wall of the inner gear ring is provided with a plurality of threaded holes, and the threaded rod is in threaded connection with the threaded holes.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the locking units are arranged between the two ends of the connecting pipe and the connecting flange, and the locking units drive the locking hooks to move by rotating the single annular gear and matching with the threaded sleeves and the threaded columns, so that the pipeline flange on the outer wall of an external pipeline is clamped by the locking hooks, the installation of the gas turbine flowmeter and the pipeline is realized, and the locking hooks are not easy to loosen when the connecting pipe vibrates due to gas passing through the matching and limiting of the threaded sleeves and the annular gear, so that the connecting pipe is convenient to assemble and disassemble, the tightness of the connection is ensured, and gas leakage is prevented.
According to the invention, the locking hook is arranged to rotate, and after the locking hook slides out of the fixing sleeve, the locking hook can be rotated outwards under the elasticity of the torsion spring, so that an external pipeline can be conveniently aligned and connected with the connecting pipe and the connecting flange, and the locking device is convenient to use.
According to the invention, the positioning unit is arranged between the connecting pipe and the connecting flange, and the inner gear ring rotates to drive the positioning pin in the positioning unit to be inserted into the hole on the external pipeline flange from the positioning hole on the connecting flange, so that the connecting flange and the external pipeline are limited, rotation is avoided, and the sealing property and the stability of connection are improved.
According to the invention, the unidirectional limiting unit is arranged on the gear ring, the internal gear is matched with the transmission gear to be matched with the gear ring, and the positioning pin can be inserted into the pipeline flange on the external pipeline firstly by the limitation of the unidirectional limiting unit, and after the positioning pin stops moving, the internal gear can still continue to rotate, so that the locking hook can continue to move, and the external pipeline is positioned, so that the locking position of the locking hook to the external pipeline is ensured.
According to the invention, the thread directions on the thread columns at the two ends of the connecting pipe are opposite, and the two rotating rods are rotated to be aligned, so that the limiting sleeve is sleeved on the outer walls of the two rotating rods, the locking units at the two ends of the connecting pipe are mutually limited, and the connection strength and the tightness are improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of another state structure of the pull rod unit of the present invention;
FIG. 3 is a detailed schematic view of the locking unit of the present invention;
FIG. 4 is a schematic cross-sectional view of the structure of the locking unit and the supporting unit, and the fixing sleeve and the connecting sleeve of the present invention;
FIG. 5 is a schematic cross-sectional view of a locking hook of the present invention;
FIG. 6 is a schematic view of the structure of the thread bushing of the present invention;
FIG. 7 is a schematic view of a positioning unit according to the present invention;
FIG. 8 is a schematic cross-sectional view of an outer tube of the present invention;
FIG. 9 is a schematic cross-sectional view of a connection structure of a transmission gear and a gear ring and the gear ring according to the present invention;
FIG. 10 is an enlarged view of a portion of FIG. 9 at A;
fig. 11 is a detailed structural schematic diagram of the drawbar unit of the present invention.
In the figure: 1. a connecting pipe; 2. an integrating instrument; 3. a connecting flange; 4. positioning holes; 5. a locking unit; 51. a fixed sleeve; 52. connecting sleeves; 53. a threaded column; 54. a thread sleeve; 55. tooth slots; 56. an inner gear ring; 57. a connecting block; 58. a locking hook; 59. a yielding port; 510. a shaft lever; 511. a torsion spring; 512. tooth openings; 513. a slide hole; 514. a baffle ring; 6. a positioning unit; 61. a positioning pin; 62. an outer tube; 63. an adjusting tube; 64. a spiral arc groove; 65. limiting straight grooves; 66. a positioning rod; 67. a connecting plate; 68. a gear ring; 69. a transmission gear; 7. a pull rod unit; 71. a rotating sleeve; 72. a threaded rod; 73. a rotating rod; 8. a supporting unit; 81. a support plate; 82. a slide bar; 83. a reinforcing block; 9. a one-way limit unit; 91. limiting sliding grooves; 92. an arc rod; 93. a slide block; 94. tooth blocks; 95. a return spring; 10. a limit sleeve; 11. and (3) a threaded hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art without the inventive effort, are intended to be within the scope of the present invention, based on the embodiments herein.
Referring to fig. 1-11, the gas turbine flowmeter with high leak tightness in this embodiment includes a connection pipe 1, two connection flanges 3 and an integrating instrument 2, a plurality of positioning holes 4 are provided on the outer wall of the connection flange 3, a locking unit 5 and a plurality of positioning units 6 are installed between the outer walls of the two ends of the connection pipe 1 and the outer wall of the connection flange 3, the positioning units 6 position and limit the connection flange 3 and an external pipeline through the positioning holes 4, the locking unit 5 includes a plurality of fixing sleeves 51 installed on the outer wall of the connection flange 3 and a plurality of connection sleeves 52 installed on the outer wall of the connection pipe 1, a locking hook 58 is slidably connected in the fixing sleeves 51, one end of the locking hook 58 is connected with a connection block 57, the other end of the connection block 57 is fixedly connected with a threaded post 53, a threaded sleeve 54 rotatably connected with the side wall of the connection sleeve 52 is provided on the outer wall of the threaded post 53, a plurality of tooth sockets 55 are installed between the outer walls of the plurality of the threaded sleeves 54, the ring 56 is engaged with the tooth sockets 55, a plurality of supporting units 8 for supporting the threaded post 53 are installed on the outer wall of the connection pipe 1, and the tie rod 7 is installed on the outer wall of the ring 56.
Specifically, the structure of the gas turbine flowmeter is similar to that of the existing gas turbine flowmeter, and the main improvement point of the invention is that the gas turbine flowmeter is convenient to connect with a pipeline, the connection tightness is good, and the detection accuracy of the gas turbine flowmeter is ensured; in the invention, the two connecting flanges 3 are fixedly connected to the outer walls of the two ends of the connecting pipe 1, and the integrating instrument 2 is arranged on the connecting pipe 1 to measure the gas flowing in the connecting pipe 1, which is the prior art, so repeated description is not repeated; when the gas turbine flowmeter needs to be connected with an external pipeline, sealing rings are placed at two ends of the connecting pipe 1, the pipeline flange of the external pipeline is propped against the connecting flange 3 at the end part of the connecting pipe 1, at the moment, the annular gear 56 is rotated, the tooth grooves 55 matched with the outer wall of the threaded sleeve 54 drive the plurality of the threaded sleeves 54 to rotate, the threaded sleeve 54 is limited by the connecting sleeve 52, the threaded sleeve 54 rotates to drive the threaded column 53 to move, the threaded column 53 is limited by the connecting sleeve 52, the connecting block 57 is driven by the threaded column 53 to move, the connecting block 57 pulls the locking hook 58 to move towards the fixed sleeve 51, the fixed sleeve 51 limits the locking hook 58, the locking hook 58 is of an L-shaped structure, the end part of the locking hook 58 is in contact with the pipeline flange of the external pipeline and clamps the pipeline, so that the connecting pipe 1 is connected with the external pipeline, the plurality of the threaded columns 53 are matched with the threaded sleeves 54 to be meshed with the annular gear 56, and mutually balanced and limited, when the gas moves in the connecting pipe 1 to vibrate, tightness and stability of the connection of the external pipeline are guaranteed, and a gas leakage phenomenon is prevented, and the connection with the external pipeline is convenient to connect with the external pipeline and split.
Specifically, the locking unit 5 further includes a yielding port 59 provided at one end of the locking hook 58, the yielding port 59 is rotationally connected with a shaft lever 510, the connecting block 57 is fixedly connected with an outer wall of the shaft lever 510, and a plurality of tooth ports 512 are provided on a side wall of one end of the locking hook 58; after the locking hook 58 is completely removed from the fixing sleeve 51 through the connecting block 57 by the threaded post 53, the locking hook 58 can rotate with the shaft lever 510, so that a space is reserved, the pipeline flange of the external pipeline is conveniently contacted with the connecting flange 3, the external pipeline is conveniently locked and installed, and the use is convenient.
Specifically, the locking unit 5 further includes a torsion spring 511, the torsion spring 511 is sleeved at two ends of the shaft lever 510, and the torsion spring 511 applies an external rotation torsion to the locking hook 58; after the locking hook 58 moves out of the fixed sleeve 51, the locking hook 58 is driven to rotate outwards through the elasticity of the torsion spring 511, so that the locking hook 58 is opened, the connecting flange 3 is not blocked, the installation of an external pipeline is facilitated, meanwhile, when the threaded column 53 pulls the connecting block 57 to move into the fixed sleeve 51, the end part of the locking hook 58 and the inner wall of the fixed sleeve 51 slide, rotation is generated until the locking hook 58 automatically rotates and is inserted into the fixed sleeve 51, manual adjustment of the locking hook 58 is not needed, and the use is facilitated.
Specifically, the locking unit 5 further includes two baffle rings 514, the two baffle rings 514 are fixedly connected with two ends of the threaded sleeve 54 respectively, and the inner gear ring 56 is located between the two baffle rings 514; the baffle ring 514 can block the inner gear ring 56, prevent the inner gear ring 56 from sliding out of the outer wall of the threaded sleeve 54, and maintain the stability of the inner gear ring 56.
Specifically, the locking unit 5 further includes a sliding hole 513 formed at an end of the threaded post 53, the supporting unit 8 includes a supporting plate 81 fixedly connected to an outer wall of the connecting pipe 1, a sliding rod 82 is fixedly connected to one side of an upper end of the supporting plate 81, one end of the sliding rod 82 is inserted into the sliding hole 513, the threaded post 53 is slidably connected to an outer wall of the sliding rod 82 through the sliding hole 513, a reinforcing block 83 is fixedly connected to one side of the supporting plate 81, and the other end of the reinforcing block 83 is fixedly connected to a side wall of the connecting sleeve 52; when the threaded column 53 moves, the threaded column 53 slides with the outer wall of the sliding rod 82, the sliding rod 82 supports one end of the threaded column 53, which is far away from the connecting sleeve 52, the supporting plate 81 supports the sliding rod 82, the strength of the supporting plate 81 and the connecting sleeve 52 is improved by the reinforcing block 83, the side wall of the connecting sleeve 52 is fixedly connected with the side wall of the connecting flange 3, the strength of the connecting sleeve 52 is improved, and the stress strength is guaranteed.
Specifically, the positioning unit 6 comprises an outer tube 62 and a connecting plate 67, the outer tube 62 is fixedly connected with the side wall of the connecting flange 3, the outer tube 62 corresponds to one of the positioning holes 4, the inner wall of the outer tube 62 is slidably connected with a regulating tube 63, the inner wall of the regulating tube 63 is slidably connected with a positioning pin 61 movably inserted into the positioning hole 4, the outer wall of the regulating tube 63 is provided with a plurality of spiral arc grooves 64, the inner wall of the outer tube 62 is provided with a plurality of limiting straight grooves 65 corresponding to the spiral arc grooves 64, one end outer wall of the positioning pin 61 positioned in the regulating tube 63 is fixedly connected with a plurality of positioning rods 66 slidably connected with the spiral arc grooves 64 and the limiting straight grooves 65, one end of the regulating tube 63 is fixedly connected with a gear ring 68, the upper end side wall of the connecting plate 67 is rotatably connected with a transmission gear 69, the transmission gear 69 is meshed with the inner gear ring 56 and the gear ring 68, and the gear ring 68 is provided with the unidirectional limiting unit 9; when the inner gear ring 56 rotates to enable the locking hook 58 to clamp and lock the pipeline flange of the external pipeline, the inner gear ring 56 simultaneously drives the transmission gear 69 to rotate, the transmission gear 69 drives the gear ring 68 to rotate, the gear ring 68 drives the adjusting pipe 63 to rotate in the outer pipe 62, the spiral arc groove 64 on the outer wall of the adjusting pipe 63 drives the positioning pin 61 to move, the limiting straight groove 65 on the inner wall of the outer pipe 62 limits the positioning pin 61, and accordingly the positioning pin 61 is driven to move by matching with the spiral arc groove 64, so that the positioning pin 61 slides in the adjusting pipe 63 and the positioning hole 4, the positioning pin 61 is inserted into the hole of the pipeline flange on the external pipeline, and the connecting flange 3 and the pipeline flange on the external pipeline are limited by the positioning pin 61, so that the two cannot rotate after locking, and the tightness of connection is kept.
Specifically, the gear ring 68 is a half gear, the unidirectional limiting unit 9 comprises two limiting sliding grooves 91 formed in the outer wall of the gear ring 68, a sliding block 93 is slidably connected in the limiting sliding grooves 91, an arc rod 92 is fixedly connected in the limiting sliding grooves 91, the sliding block 93 is slidably connected outside the arc rod 92, a tooth block 94 is fixedly connected to the outer wall of the sliding block 93, the tooth block 94 is meshed with the transmission gear 69 and slides, a return spring 95 is sleeved on the outer wall of the arc rod 92, one end of the return spring 95 is fixedly connected with one side of the sliding block 93, and the other end of the return spring is fixedly connected with the inner wall of the limiting sliding groove 91; in the process of rotating the inner gear ring 56 to enable the locking hook 58 to clamp and lock the pipeline flange of the external pipeline, before the locking hook 58 locks the external pipeline, the transmission gear 69 drives the gear ring 68 to rotate to enable the positioning pin 61 to be inserted into the hole of the pipeline flange on the external pipeline, so that the positioning pin 61 is inserted into the external pipeline to be positioned, the accuracy of the external pipeline installation is guaranteed, after the positioning pin 61 is inserted, the transmission gear 69 is in contact with the gear block 94, the transmission gear 69 pushes the gear block 94 to move, the gear block 94 drives the sliding block 93 to slide on the inner wall of the limiting sliding groove 91, the limiting sliding groove 91 limits the gear block 94 through the sliding block 93, the gear block 94 slides on the outer wall of the arc rod 92 and drives the return spring 95 to compress, the arc rod 92 limits the return spring 95 until the transmission gear 69 slides over the gear block 94, and under the elastic force of the return spring 95, the gear block 94 moves back, and after the positioning pin 61 is inserted into the external pipeline, the transmission gear 69 can still be driven by the ring 56 to rotate, the gear block 94 can be driven by the inner gear block 56 to move, the gear block 58 can be driven by the inner gear ring 56 to move, the gear block 58 can be driven by the inner gear block 58 to move, and the inner gear ring 94 can be meshed with the gear ring 94, and the accuracy of the locking hook 68 can be further guaranteed, and the locking hook is meshed with the gear ring is further driven by the gear block 68 to rotate, and the inner gear ring is meshed with the gear ring 68, and the accuracy is meshed with the gear ring 94.
Specifically, the pull rod unit 7 comprises a rotating sleeve 71 connected with the outer wall of the inner gear ring 56, the rotating sleeve 71 is rotationally connected with rotating rods 73, the outer wall of one rotating rod 73 is slidably connected with a limiting sleeve 10, and the limiting sleeve 10 is movably sleeved with the outer wall of the other rotating rod 73; when the inner gear ring 56 needs to rotate, the rotating rods 73 are rotated to be parallel to the side wall of the inner gear ring 56 by rotating the rotating rods 73, at the moment, the rotating rods 73 are pulled to be matched with the rotating sleeves 71 to enable the inner gear ring 56 to rotate, so that force application is facilitated, meanwhile, after external pipelines at two ends of the connecting pipe 1 are locked, the rotating rods 73 positioned at two ends of the connecting pipe 1 are horizontal, the rotating rods 73 are rotated, the ends of the two rotating rods 73 are aligned, the limiting sleeve 10 on the outer wall of one rotating rod 73 is moved, the limiting sleeve 10 is sleeved outside the two rotating rods 73, and the limiting sleeve 10 and the rotating rods 73 are matched with each other, so that locking units 5 at two ends of the connecting pipe 1 are mutually limited, looseness caused by vibration is reduced, and tightness is guaranteed.
Specifically, the screw thread directions on the screw thread columns 53 at the two ends of the connecting pipe 1 are opposite, and the spiral arc groove 64 of the outer wall of the adjusting pipe 63 faces to correspond to the screw thread direction on the screw thread column 53 at the same end; after the two rotating rods 73 are connected and limited by the limiting sleeve 10, the rotation directions of the inner gear rings 56 are opposite when the locking hooks 58 in the locking units 5 at the two ends of the connecting pipe 1 are loosened, so that the locking units 5 at the two ends of the connecting pipe 1 are mutually limited by the rotating rods 73 and the limiting sleeve 10, the locking strength is improved, and the tightness is ensured.
Specifically, the pull rod unit 7 further includes a threaded rod 72, the threaded rod 72 is fixedly connected with one side of the rotating sleeve 71, the outer wall of the inner gear ring 56 is provided with a plurality of threaded holes 11, and the threaded rod 72 is in threaded connection with the threaded holes 11; the rotating sleeve 71 is connected with the threaded holes 11 through the threaded rods 72, so that the inner gear ring 56 can be driven to rotate by applying force to the rotating rods 73, the positions of the rotating rods 73 can be adjusted by the plurality of threaded holes 11, and therefore the rotating sleeve is suitable for rotating the inner gear ring 56 in a narrow space, and the practicability is improved.
It is apparent that the above examples of the present invention are merely illustrative examples for the purpose of clearly illustrating the present invention, and are not limited to the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (9)
1. The utility model provides a gas turbine flowmeter of leak protection gas high leakproofness, including connecting pipe (1), two flange (3) and totalizer (2), a plurality of locating holes (4) have been seted up to the outer wall of flange (3), all install locking unit (5) and a plurality of locating element (6) between the outer wall of the both ends outer wall of connecting pipe (1) and flange (3), locating element (6) are through locating hole (4) to flange (3) and external pipeline location restriction, locking unit (5) are including installing a plurality of fixed cover (51) at flange (3) outer wall and installing a plurality of adapter sleeve (52) at connecting pipe (1) outer wall, sliding connection has locking hook (58) in fixed cover (51), one end of locking hook (58) is connected with connecting block (57), the other end fixedly connected with screw thread post (53) of connecting block (57), the outer wall threaded connection of screw thread post (53) has screw thread bush (54) with adapter sleeve (52) lateral wall rotation connection, the outer wall of screw thread bush (54) has seted up a plurality of tooth sockets (55), a plurality of screw thread bush (54) are equipped with between the outer wall tooth socket (56), install ring (56) and mesh with ring (56), the outer wall of the connecting pipe (1) is provided with a plurality of supporting units (8) for supporting the threaded columns (53), and the outer wall of the inner gear ring (56) is provided with a pull rod unit (7);
the positioning unit (6) comprises an outer tube (62) and a connecting plate (67), the outer tube (62) is fixedly connected with the side wall of the connecting flange (3), the outer tube (62) corresponds to one of the positioning holes (4), the inner wall of the outer tube (62) is slidably connected with an adjusting tube (63), the inner wall of the adjusting tube (63) is slidably connected with a positioning pin (61) movably inserted into the positioning hole (4), a plurality of spiral arc grooves (64) are formed in the outer wall of the adjusting tube (63), a plurality of limit straight grooves (65) corresponding to the spiral arc grooves (64) are formed in the inner wall of the outer tube (62), one end outer wall of the positioning pin (61) located the adjusting tube (63) is fixedly connected with a plurality of positioning rods (66) slidably connected with the spiral arc grooves (64) and the limit straight grooves (65), one end of the adjusting tube (63) is fixedly connected with a gear ring (68), the upper end side wall of the connecting plate (67) is rotatably connected with a transmission gear (69), and the transmission gear (69) is meshed with the inner gear ring (56) and the gear ring (68), and the unidirectional limiting unit (9) is mounted on the gear ring (68).
2. The gas turbine flowmeter with high leak tightness according to claim 1, wherein the locking unit (5) further comprises a yielding port (59) formed at one end of the locking hook (58), the yielding port (59) is rotationally connected with a shaft lever (510), the connecting block (57) is fixedly connected with the outer wall of the shaft lever (510), and a plurality of tooth ports (512) are formed on the side wall of one end of the locking hook (58).
3. The gas turbine flowmeter of claim 2, wherein the locking unit (5) further comprises torsion springs (511), the torsion springs (511) are sleeved at two ends of the shaft lever (510), and the torsion springs (511) apply external torsion to the locking hooks (58).
4. The gas turbine flowmeter of claim 1, wherein the locking unit (5) further comprises two baffle rings (514), the two baffle rings (514) are fixedly connected with two ends of the threaded sleeve (54) respectively, and the inner gear ring (56) is located between the two baffle rings (514).
5. The gas turbine flowmeter with high leak tightness according to claim 1, wherein the locking unit (5) further comprises a sliding hole (513) formed in the end of the threaded column (53), the supporting unit (8) comprises a supporting plate (81) fixedly connected with the outer wall of the connecting pipe (1), a sliding rod (82) is fixedly connected to one side of the upper end of the supporting plate (81), one end of the sliding rod (82) is arranged in the sliding hole (513) in a penetrating mode, the threaded column (53) is slidably connected with the outer wall of the sliding rod (82) through the sliding hole (513), a reinforcing block (83) is fixedly connected to one side of the supporting plate (81), and the other end of the reinforcing block (83) is fixedly connected with the side wall of the connecting sleeve (52).
6. The gas turbine flowmeter with high leak tightness according to claim 1, wherein the gear ring (68) is a half gear, the unidirectional limiting unit (9) comprises two limiting sliding grooves (91) formed in the outer wall of the gear ring (68), a sliding block (93) is slidably connected in the limiting sliding grooves (91), an arc rod (92) is fixedly connected in the limiting sliding grooves (91), the sliding block (93) is slidably connected outside the arc rod (92), a tooth block (94) is fixedly connected with the outer wall of the sliding block (93), the tooth block (94) is meshed with the transmission gear (69) and slides, a return spring (95) is sleeved on the outer wall of the arc rod (92), one end of the return spring (95) is fixedly connected with one side of the sliding block (93), and the other end of the return spring is fixedly connected with the inner wall of the limiting sliding groove (91).
7. The gas turbine flowmeter with high leak tightness according to claim 1, wherein the pull rod unit (7) comprises a rotating sleeve (71) connected with the outer wall of the inner gear ring (56), the rotating sleeve (71) is rotationally connected with rotating rods (73), the outer wall of one rotating rod (73) is slidably connected with a limiting sleeve (10), and the limiting sleeve (10) is movably sleeved with the outer wall of the other rotating rod (73).
8. The gas turbine flowmeter of claim 7, wherein the screw thread directions on the screw thread columns (53) at both ends of the connecting pipe (1) are opposite, and the screw arc grooves (64) of the outer wall of the adjusting pipe (63) are oriented to correspond to the screw thread directions on the screw thread columns (53) at the same end.
9. The gas turbine flowmeter with high leak tightness against gas leakage according to claim 7, wherein the pull rod unit (7) further comprises a threaded rod (72), the threaded rod (72) is fixedly connected with one side of the rotary sleeve (71), the outer wall of the inner gear ring (56) is provided with a plurality of threaded holes (11), and the threaded rod (72) is in threaded connection with the threaded holes (11).
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| CN202311705634.2A CN117405191B (en) | 2023-12-13 | 2023-12-13 | Gas turbine flowmeter with high leak tightness |
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| CN202311705634.2A CN117405191B (en) | 2023-12-13 | 2023-12-13 | Gas turbine flowmeter with high leak tightness |
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| CN117405191B (en) | 2024-03-08 |
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