CN212376707U

CN212376707U - Gas pipeline pressure reduction and energy recovery device

Info

Publication number: CN212376707U
Application number: CN202021035976.XU
Authority: CN
Inventors: 李岩岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-01-19
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a gas pipeline step-down and energy recovery device, including coil, pivot support, initiative rotor, driven rotor, intake pipe and outlet duct, in the coaxial insertion outlet duct of intake pipe one end and both sealing connection, the outlet duct is equipped with heat tracing equipment, initiative rotor is located the outlet duct and is the uncovered tubbiness structure, its open end and the sealed rotation of intake pipe mouth of pipe are connected, the other end and pivot coaxial coupling are rotatory in order to drive the pivot, the side is provided with the runner that runs through the body all around and supplies the fluid circulation; the rotating shaft bracket is coaxially and movably sleeved on the outer wall of the rotating shaft and used for supporting the rotating shaft; the driven rotor is coaxially and fixedly sleeved on the outer wall of the rotating shaft, and the outer wall of the driven rotor is provided with a magnetic block. The utility model discloses set up the intake pipe and the outlet duct of different pipe diameters to gaseous step-down inflation, lead to the condition such as the voltage regulator is malfunctioning or pipeline frosting to appear to have set up the heat tracing equipment because of the low temperature easily to gaseous step-down cooling, the utility model discloses especially adapted gaseous electricity generation retrieves the energy of gaseous step-down in-process, energy saving.

Description

Gas pipeline pressure reduction and energy recovery device

Technical Field

The utility model belongs to the technical field of power generation facility, especially a gas pipeline step-down and energy recuperation device.

Background

In the natural gas transportation process, need to step down the natural gas in door station department, use conventional relief pressure valve throttle step down at present, wasted the energy of natural gas throttle step down in-process, utilize the high pressure difference electricity generation in hydroelectric power generation field generator, also have the pipeline generator who utilizes pipeline pressure difference electricity generation, like chinese application patent CN201720483435.5, but it all adopts liquid to rush the rotor rotation, to gaseous, there is the volume expansion problem in its step down process, in addition, because joule thomson effect gas can cool down in the throttle step down in-process, precision equipment such as voltage regulator probably causes the low temperature malfunctioning.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to provide a gas pipeline step-down and energy recuperation device for energy recuperation when natural gas station step-down.

In order to solve the technical problems, the technical scheme provided by the utility model is that the gas pipeline pressure reduction and energy recovery device comprises a coil, a rotating shaft bracket, a driving rotor, a driven rotor and a pipeline, wherein the rotating shaft is positioned in the pipeline and is arranged along the axial direction of the pipeline; the rotating shaft bracket is coaxially and movably sleeved on the outer wall of the rotating shaft, the outer wall of the rotating shaft bracket is fixedly connected with the pipeline and is used for supporting the rotating shaft, and the rotating shaft bracket is of a hollow structure and is convenient for fluid circulation; the driven rotor is coaxially and fixedly sleeved on the outer wall of the rotating shaft, the outer wall of the driven rotor is provided with a magnetic block, the pipeline comprises an air inlet pipe and an air outlet pipe, one end of the air inlet pipe is coaxially inserted into the air outlet pipe and is in sealing connection with the air outlet pipe, and the air outlet pipe is provided with heat tracing equipment; the driving rotor is positioned in the air outlet pipe and is of a cover-free barrel-shaped structure, the opening end of the driving rotor is movably connected with the pipe opening of the air inlet pipe through a sealing bearing, the other end of the driving rotor is coaxially connected with the rotating shaft to drive the rotating shaft to rotate, a flow passage penetrating through the body is arranged on the peripheral side of the driving rotor to allow fluid to flow, and an acute angle is formed between the outlet of the flow passage and the tangential direction of; when fluid flows through the flow channel of the driving rotor, throttling is carried out and the driving rotor is pushed to rotate, the driving rotor drives the driven rotor to rotate, the magnetic block on the outer wall of the driven rotor continuously rotates to transform a magnetic field, the coil on the outer wall of the pipeline continuously cuts the magnetic induction line to generate electricity, the coil which generates relative motion with the magnetic field and is used for generating electricity is located outside the pipeline, the conductive coil is effectively prevented from being contacted with inflammable and explosive gas in the pipeline, and meanwhile, the conductive coil of the patent is sealed by an explosion-proof junction box and meets the requirement of the fire-proof grade.

According to the utility model relates to a gas pipeline step-down and energy recuperation device's a preferred embodiment, through journal bearing and footstep bearing sliding connection between pivot support and the pivot, prevent that pressure differential leads to the journal bearing to damage greatly around the initiative rotor.

According to the utility model relates to a gas pipeline step-down and energy recuperation device's a preferred embodiment, the magnetic path has six, and circular array distributes in the driven rotor outer wall.

According to the utility model relates to a gas pipeline step-down and energy recuperation device's a preferred embodiment, the pivot support includes outer loop and inner ring, outer loop and pipeline fixed connection, and the inner ring is rotated with the pivot and is connected, and the outer loop passes through the landing leg with the inner ring and is connected.

According to the utility model relates to a gas pipeline step-down and energy recuperation device's a further embodiment, the landing leg has many.

According to the utility model relates to a gas pipeline step-down and energy recuperation device's a further embodiment, the landing leg is around inner ring place circumference evenly distributed.

According to the utility model relates to a gas pipeline step-down and energy recuperation device's a preferred embodiment, gas pipeline step-down and energy recuperation device still includes the battery for store electric energy.

According to the utility model relates to a gas pipeline step-down and energy recuperation device's a preferred embodiment, be provided with the blow off pipe on the outlet duct for the lime set or the impurity that will probably exist are got rid of.

According to the utility model relates to a gas pipeline step-down and energy recuperation device's a further mode, heat tracing equipment is electric heat tracing system, the battery is connected with electric heat tracing system, electric heat tracing system's heat tracing wire evenly coils around the pipeline outer wall, utilizes the electric energy that gas pipeline step-down and energy recuperation device produced carries out the heat tracing to the pipeline.

According to the utility model relates to a gas pipeline step-down and energy recuperation device's a further mode, the battery still with office power consumption system connection.

The utility model discloses one of them embodiment's beneficial effect is:

the utility model discloses set up the intake pipe and the outlet duct of different pipe diameters to gaseous step-down inflation, make full use of the energy of gaseous throttle step-down process, for the gas heating in the pipeline, alleviate the throttle cooling and lead to the voltage regulator failure easily or the pipeline scheduling problem that frosts, still can provide the electric energy for station office electrical apparatus etc. simultaneously. The utility model discloses especially adapted gas power generation retrieves the energy of gaseous step-down in-process, the energy saving.

Drawings

FIG. 1 is a sectional view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the rotating shaft bracket of the present invention;

FIG. 3 is a schematic view of the structure of the active rotor of the present invention;

the labels in the figure are respectively: 1. a coil; 2. a rotating shaft; 3. a rotating shaft bracket; 4. a driving rotor; 5. a driven rotor; 7. an electric tracing system; 8. a blow-off pipe;

301. an outer ring; 302. an inner ring; 401. a flow channel; 601. an air inlet pipe; 602. and an air outlet pipe.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Referring to fig. 1-3, the utility model provides a technical scheme is a gas pipeline step-down and energy recuperation device, include coil 1 and be located pipeline pivot 2, pivot support 3, initiative rotor 4 and driven rotor 5, the pipeline includes intake pipe 601 and outlet duct 602, intake pipe 601 one end is coaxial to be inserted in outlet duct 602 and both sealing connection, there is electric heat tracing system 7 outlet duct 602 outer wall for gas heating in to outlet duct 602.

The driving rotor 4 is located in the air outlet pipe 602 and has a cover-free barrel structure, the opening end of the driving rotor is rotatably connected with the pipe opening of the air inlet pipe 601 through a seal bearing, the peripheral side surface of the driving rotor is provided with a flow channel 401 penetrating through the body for fluid circulation, the opposite end of the opening end is coaxially connected with the rotating shaft 2 to drive the rotating shaft 2 to rotate, the outlet of the flow channel 401 and the tangential direction of the driving rotor 4 form an acute angle, and the gas can push the driving rotor 4 to rotate at a high speed after being sprayed out from the.

The rotating shaft 2 is positioned in the outlet pipe 602 and is arranged along the axial direction of the pipeline.

The rotating shaft support 3 is coaxially sleeved on the rotating shaft 2 and used for supporting the rotating shaft 2, is of a hollow structure and is convenient for fluid flow, and particularly comprises an outer ring 301 and an inner ring 302, the outer ring 301 is fixedly connected with an air outlet pipe 602, the inner ring 302 is rotatably connected with the rotating shaft 2, the outer ring 301 is connected with the inner ring 302 through 4 supporting legs, and the 4 supporting legs are uniformly distributed around the circumference of the inner ring 302.

The driven rotor 5 is coaxially fixed and sleeved on the outer wall of the rotating shaft 2 so that the driven rotor can rotate coaxially with the driving rotor 4, 6 magnetic blocks are uniformly distributed on the outer wall of the driven rotor 5, the coil 1 is located at a position where the outer wall of the air outlet pipe 602 faces the magnetic blocks, and when the magnetic blocks rotate along with the driven rotor 5, the coil 1 continuously cuts magnetic induction lines to generate electricity.

The outlet pipe 602 is further provided with a drain pipe 8 for removing possible condensed liquid or impurities.

The coil 1 is connected to a battery for storing electrical energy. The storage battery is connected with the electric heat tracing system 7 and the office electric system for supplying energy. The heat tracing wires of the electric heat tracing system 7 are uniformly coiled around the outer wall of the pipeline, and the electric energy generated by the gas pipeline pressure reduction and energy recovery device is utilized to carry out heat tracing on the pipeline, so that the condensate or impurities generated after the gas throttling and temperature reduction are reduced.

Because there is great pressure differential in the both ends of the initiative rotor 4, in order to prevent the rotor drunkenness, through journal bearing and thrust bearing sliding connection between shaft support 3 and the pivot 2, balance this pressure differential through the thrust bearing of journal, its concrete setting is the same as conventional compressor, it is prior art.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the present invention.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are all covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A gas pipeline pressure reduction and energy recovery device comprises a coil, a rotating shaft bracket, a driving rotor, a driven rotor and a pipeline, wherein the outer wall of the driven rotor is provided with a magnetic block,

the pipeline comprises an air inlet pipe and an air outlet pipe, one end of the air inlet pipe is coaxially inserted into the air outlet pipe and is hermetically connected with the air inlet pipe and the air outlet pipe, and the air outlet pipe is provided with heat tracing equipment;

the driving rotor is located in the air outlet pipe and is of a cover-free barrel-shaped structure, the opening end of the driving rotor is movably connected with the pipe opening of the air inlet pipe through a sealing bearing, a flow passage penetrating through the body is arranged on the peripheral side of the driving rotor for fluid circulation, and the opposite end of the opening end is coaxially connected with the rotating shaft.

2. The gas pipeline pressure reduction and energy recovery device as claimed in claim 1, wherein the rotating shaft support and the rotating shaft are slidably connected through a radial bearing and a thrust bearing, so as to prevent the radial bearing from being damaged due to large front-back pressure difference of the driving rotor.

3. The gas pipeline pressure reduction and energy recovery device as claimed in claim 1, wherein the magnetic blocks are six and distributed on the outer wall of the driven rotor in an annular array.

4. The apparatus as claimed in claim 1, wherein the shaft support comprises an outer ring and an inner ring, the outer ring is fixedly connected to the pipe, the inner ring is rotatably connected to the shaft, and the outer ring and the inner ring are connected by legs.

5. The gas pipeline depressurization and energy recovery device of claim 4, wherein the support leg comprises a plurality of legs.

6. The gas pipeline pressure reduction and energy recovery device of claim 5, wherein the legs are evenly distributed around the circumference of the inner ring.

7. The gas pipeline depressurization and energy recovery device of claim 1, wherein a drain pipe is provided on the gas outlet pipe.

8. The gas pipeline pressure reduction and energy recovery device according to claim 1, further comprising a storage battery for storing electric energy.

9. The gas pipeline pressure reduction and energy recovery device according to claim 8, wherein the heat tracing equipment is an electric heat tracing system, the storage battery is connected with the electric heat tracing system, heat tracing wires of the electric heat tracing system are uniformly wound around the outer wall of the pipeline, and the pipeline is subjected to heat tracing by using electric energy generated by the gas pipeline pressure reduction and energy recovery device.

10. The gas pipeline depressurization and energy recovery device of claim 8 or 9, wherein the storage battery is further connected to an office power system.