CN209012122U - A kind of natural gas differential pressure cold energy utilization device - Google Patents

Abstract

The utility model discloses a kind of natural gas differential pressure cold energy utilization devices, it is related to cold energy utilization device field, the natural gas differential pressure cold energy utilization device, including body, main shaft and bearing, the inner wall of the body opens up fluted, the inner wall of the groove is fixedly connected with the surface of bearing, the main shaft is located at the inside of body, the bearing fixing sleeve connects on the surface of main shaft, the right end of the main shaft runs through body and extends to the right side of body, the surface activity of the main shaft is socketed with impeller of blower, pivot bush unit has volute of blower and end cover of fan respectively for the surface of the impeller of blower, the volute of blower is located at the left side of end cover of fan, the volute of blower is fixedly connected on the left side of body.By setting retainer plate, pressure spring and briquetting, the impeller of blower for solving natural gas differential pressure cold energy use expanding machine connect by nut with main shaft the utility model, and vibration leads to the problem of connecting easy loosening when machine operation.

Description

A kind of natural gas differential pressure cold energy utilization device

Technical field

The utility model relates to cold energy utilization device technical field, specially a kind of natural gas differential pressure cold energy utilization device.

Background technique

Turbo-expander is a kind of natural gas differential pressure cold energy utilization device, from the high pressure day that the conveying of natural gas high pressure pipeline comes Right gas is before being sent to gas point, it usually needs requires first to be depressured according to the supply gas pressure of downstream user, in the process Very big pressure drop will be generated, while releasing a large amount of energy, turbo-expander is due to its working characteristics, alternative decompression dress It sets, this partial pressure can be recycled effectively, for generating electricity and producing required cooling capacity.

The serious friction of blower impeller blade and end cover of fan is the immediate cause for causing impeller of blower to damage, existing natural The impeller of blower of gas differential pressure cold energy use expanding machine mostly passes through clamp nut and connect with main shaft coarse thread, and when machine operation is vibrated Cause to connect easy loosening.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of natural gas differential pressure cold energy utilization device, solves The impeller of blower of natural gas differential pressure cold energy use expanding machine connect by nut with main shaft, and vibration causes to connect easy when machine operation The problem of loosening.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions: a kind of natural gas differential pressure cold energy utilization device, Including body, main shaft and bearing, the inner wall of the body opens up fluted, the fixed company of the inner wall of the groove and the surface of bearing It connects, the main shaft is located at the inside of body, and the bearing fixing sleeve connects on the surface of main shaft, and the right end of the main shaft runs through body And the right side of body is extended to, the surface activity of the main shaft is socketed with impeller of blower, and movable sleeve is distinguished on the surface of the impeller of blower What is connect has volute of blower and end cover of fan, and the volute of blower is located at the left side of end cover of fan, and the volute of blower is fixedly connected In the left side of body, the inner wall of the impeller of blower offers guide groove and limiting slot respectively, and the guide groove is located at limiting slot Left side has been respectively fixedly connected with guide rod and spring on the right side of the guide groove inner wall, and the spring is actively socketed on guide rod Surface, the surface fixing sleeve of guide groove inner wall back side movable inlaying fixing axle is connected to fan blades, and the fan blades surface is corresponding The surface activity of inner wall and guide rod that arc groove is opened up at the position of guide rod connects, and the spring is right far from guide groove inner wall One end of side is fixedly connected with the surface of fan blades, and the surface activity of the main shaft is socketed with retainer plate, the impeller of blower movable sleeve It connects on the surface of retainer plate, the retainer plate is located at the right side of fan blades, and the retainer plate surface corresponds to opens at the position of guide groove Equipped with square groove, the inside of the square groove is connected with pressure spring and briquetting respectively, the both ends of the pressure spring respectively with square groove inner wall Side far from guide groove is fixedly connected with briquetting close to the side of main shaft, and the briquetting runs through square groove simultaneously far from the side of main shaft The inside of limiting slot is extended to, with teeth piece is fixedly connected on the right side of the briquetting, is fixedly connected on the right side of the limiting slot inner wall There are teeth, the tooth block and teeth engagement, the right side movable inlaying of the retainer plate has fixed link, opens up on the right side of the fixed link The inner wall of slot and the surface activity of sliding block connect, and the surface of the sliding block is fixedly connected with plate, and the plate, which is located at, to be fixed The right side of bar, the right end of the main shaft are fixedly connected with bracket, and the bracket offers card slot at the position of sliding block, described The surface of sliding block and plate is flexibly connected with the inner wall of card slot.

Preferably, the end cover of fan is overlapped on the right side of volute of blower, and the end cover of fan passes through bolt and blower snail Shell is fixedly connected.

Preferably, the surface of the main shaft is fixedly connected with block, and the block is located at the left side of impeller of blower.

Preferably, the front view of the briquetting is in a rectangular trapezoid, and side of the briquetting far from pressure spring is inclined-plane.

Preferably, the front elevational view of the fan blades is fan-shaped, and the guide rod is located at side of the fan blades far from main shaft, described to lead It is arc to the shape of bar, the fan blades and the corresponding center of circle of guide rod are located at same point.

(3) beneficial effect

The utility model provides a kind of natural gas differential pressure cold energy utilization device, have it is following the utility model has the advantages that

The utility model is mainly passed through and will be consolidated when connecting main shaft and impeller of blower by setting retainer plate, pressure spring and briquetting The inside of fixed circle insertion impeller of blower, briquetting are against the inside of limiting slot, are engaged by tooth block and teeth, and rotation fixed link thinks it Be bent close to the direction of main shaft, to the side sliding slider of bracket after can will by the inside of the plate of shoe surface insertion card slot Impeller of blower is fixed, and when the shaft rotates, main shaft drives fixed link rotation, and fixed link drives retainer plate to turn around the axis of main shaft Dynamic, retainer plate drives impeller of blower rotation at this time, has reached gap when impeller of blower rotates for a long time between impeller of blower and end cover of fan It is spaced stable effect, the impeller of blower for solving natural gas differential pressure cold energy use expanding machine is connect by nut with main shaft, machine Vibration, which causes to connect, when work is easy the problem of loosening.

Detailed description of the invention

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is structural schematic diagram at the utility model impeller of blower position；

Fig. 3 is schematic enlarged-scale view at A in the utility model Fig. 1；

Fig. 4 is schematic enlarged-scale view at B in the utility model Fig. 2；

Fig. 5 is schematic enlarged-scale view at C in the utility model Fig. 2.

In figure: 1 body, 2 main shafts, 3 bearings, 4 grooves, 5 impeller of blowers, 6 volute of blower, 7 end cover of fan, 8 guide grooves, 9 limits Position slot, 10 guide rods, 11 springs, 12 fan blades, 13 retainer plates, 14 square grooves, 15 pressure springs, 16 briquettings, 17 tooth blocks, 18 teeth, 19 are consolidated Fixed pole, 20 sliding blocks, 21 plates, 22 brackets, 23 card slots, 24 blocks.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figs. 1-5, the utility model provides a kind of technical solution: a kind of natural gas differential pressure cold energy utilization device, packet Body 1, main shaft 2 and bearing 3 are included, the inner wall of body 1 opens up fluted 4, and the inner wall of groove 4 is fixedly connected with the surface of bearing 3, Main shaft 2 is located at the inside of body 1, and bearing 3 is fixedly attached to the surface of main shaft 2, and the right end of main shaft 2 through body 1 and extends to The right side of body 1, the surface activity of main shaft 2 be socketed with impeller of blower 5, and pivot bush unit has blower snail respectively on the surface of impeller of blower 5 Shell 6 and end cover of fan 7, volute of blower 6 are located at the left side of end cover of fan 7, and volute of blower 6 is fixedly connected on the left side of body 1, wind The inner wall of wheel 5 offers guide groove 8 and limiting slot 9 respectively, and guide groove 8 is located at the left side of limiting slot 9,8 inner wall of guide groove Right side has been respectively fixedly connected with guide rod 10 and spring 11, and spring 11 is actively socketed on the surface of guide rod 10,8 inner wall of guide groove The surface fixing sleeve of back side movable inlaying fixing axle is connected to fan blades 12, and 12 surface of fan blades corresponds to and opens up arc at the position of guide rod 10 The inner wall of shape slot is connect with the surface activity of guide rod 10, and guide rod 10 has guiding role to the rotation of fan blades 12, and spring 11 makes It obtains extruded fan blades 12 to reset, spring 11 is fixedly connected far from one end on the right side of 8 inner wall of guide groove with the surface of fan blades 12, main The surface activity of axis 2 is socketed with retainer plate 13, and impeller of blower 5 is actively socketed on the surface of retainer plate 13, and retainer plate 13 is located at fan blades 12 right side, 13 surface of retainer plate correspond to and offer square groove 14 at the position of guide groove 8, and square groove 14 provides activity for briquetting 16 Space, the inside of square groove 14 are connected with pressure spring 15 and briquetting 16 respectively, and the both ends of pressure spring 15 are remote with 14 inner wall of square groove respectively Side from guide groove 8 is fixedly connected with briquetting 16 close to the side of main shaft 2, and briquetting 16 runs through square groove far from the side of main shaft 2 14 and the inside of limiting slot 9 is extended to, the right side of briquetting 16 is fixedly connected with teeth piece 17, and the right side of 9 inner wall of limiting slot is fixed to be connected Teeth 18 are connected to, tooth block 17 and teeth 18 engage, and the right side movable inlaying of retainer plate 13 has fixed link 19,19 right side opening of fixed link If the inner wall of slot is connect with the surface activity of sliding block 20, the surface of sliding block 20 is fixedly connected with plate 21, and plate 21 is a circle, Circular array distribution, plate 21 are located at the right side of fixed link 19, and the right end of main shaft 2 is fixedly connected with bracket 22, and bracket 22 leans on Card slot 23 is offered at the position of nearly sliding block 20, the shape of card slot 23 is adapted with the shape of a circle plate 21, each plate 21 It is inserted in the gap of the recess of card slot 23, the surface of sliding block 20 and plate 21 is flexibly connected with the inner wall of card slot 23.

As a kind of technical optimization scheme of the utility model, end cover of fan 7 is overlapped on the right side of volute of blower 6, blower End cap 7 is fixedly connected by bolt with volute of blower 6, and end cover of fan 7 and volute of blower 6 are combined into the shell for protecting impeller of blower 5.

As a kind of technical optimization scheme of the utility model, the surface of main shaft 2 is fixedly connected with block 24, and block 24 In the left side of impeller of blower 5, block 24 plays the role of limit to impeller of blower 5.

As a kind of technical optimization scheme of the utility model, the front view of briquetting 16 is in a rectangular trapezoid, and briquetting 16 is remote The side of tripping spring 15 is inclined-plane, and briquetting 16 is pressed into the inside of square groove 14 when inclined-plane moves downward convenient for retainer plate 13.

As a kind of technical optimization scheme of the utility model, the front elevational view of fan blades 12 is fan-shaped, and guide rod 10 is located at fan Side of the piece 12 far from main shaft 2, the shape of guide rod 10 are arc, and fan blades 12 and the corresponding center of circle of guide rod 10 are located at same The shape of point, guide rod 10 is adapted with the arc groove on 12 surface of fan blades, and fan blades 12 is rotated around fixing axle, and guide rod 10 is corresponding Arc core and the axle center of fixing axle be and same point.

When in use, main shaft 2 and impeller of blower 5 are connected, avoids the mode using screw thread, it is hidden to reduce the loosening that screw thread causes Suffer from, mainly by by retainer plate 13 to the left along main shaft 2 surface be inserted into impeller of blower 5 inside, at this time briquetting 16 be squeezed into Enter the inside of square groove 14, pressure spring 15 compresses, and fan blades 12 is squeezed along guiding when impeller of blower 5 is moved to the left to the position of block 24 10 surface of bar is rotated around fixing axle, and when reaching the position of limiting slot 9, the reset of pressure spring 15 squeezes into briquetting 16 in limiting slot 9 Portion, briquetting 16 are against the inside of limiting slot 9, and fan blades 12 squeezes to the right retainer plate 13, so that tooth block 17 and teeth 18 engage, rotation Fixed link 19 makes it want to be bent close to the direction of main shaft 2, will to the side close to bracket 22 along slot inner wall sliding slider 20 The inside that the plate 21 on 20 surface of sliding block is inserted into card slot 23 can be fixed by impeller of blower 5, and when main shaft 2 rotates, main shaft 2 drives solid Fixed pole 19 rotates, and fixed link 19 drives retainer plate 13 to rotate around the axis of main shaft 2, and retainer plate 13 drives 5 turns of impeller of blower at this time It is dynamic, achieve the effect that gap length when impeller of blower 5 rotates for a long time between impeller of blower 5 and end cover of fan 7 is stable.

It can to sum up obtain, it is cold to solve natural gas differential pressure by setting retainer plate 13, pressure spring 15 and briquetting 16 for the utility model Can connect with main shaft 2 using the impeller of blower 5 of expanding machine by nut, when machine operation vibration cause to connect it is easy loosen ask Topic.

It should be noted that, in this document, such as the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of natural gas differential pressure cold energy utilization device, including body (1), main shaft (2) and bearing (3), the body (1) it is interior Wall opens up fluted (4), and the inner wall of the groove (4) is fixedly connected with the surface of bearing (3), and the main shaft (2) is located at body (1) inside, the bearing (3) are fixedly attached to the surface of main shaft (2), it is characterised in that: the right end of the main shaft (2) runs through The surface activity on body (1) and the right side for extending to body (1), the main shaft (2) is socketed with impeller of blower (5), the impeller of blower (5) pivot bush unit has volute of blower (6) and end cover of fan (7) respectively on surface, and the volute of blower (6) is located at end cover of fan (7) left side, the volute of blower (6) are fixedly connected on the left side of body (1), and the inner wall of the impeller of blower (5) opens up respectively There are guide groove (8) and limiting slot (9), the guide groove (8) is located at the left side of limiting slot (9), the right side of guide groove (8) inner wall Side has been respectively fixedly connected with guide rod (10) and spring (11), and the spring (11) is actively socketed on the surface of guide rod (10), The surface fixing sleeve of guide groove (8) inner wall back side movable inlaying fixing axle is connected to fan blades (12), fan blades (12) surface The inner wall that arc groove is opened up at the position of corresponding guide rod (10) is connect with the surface activity of guide rod (10), the spring (11) It is fixedly connected far from one end on the right side of guide groove (8) inner wall with the surface of fan blades (12), the surface activity socket of the main shaft (2) Have retainer plate (13), the impeller of blower (5) is actively socketed on the surface of retainer plate (13), and the retainer plate (13) is located at fan blades (12) right side, retainer plate (13) surface corresponds to be offered square groove (14) at the positions of guide groove (8), the square groove (14) Inside be connected with pressure spring (15) and briquetting (16) respectively, the both ends of the pressure spring (15) are remote with square groove (14) inner wall respectively Side from guide groove (8) is fixedly connected with briquetting (16) close to the side of main shaft (2), and the briquetting (16) is far from main shaft (2) Side through square groove (14) and extend to the inside of limiting slot (9), be fixedly connected with teeth piece on the right side of the briquetting (16) (17), it is fixedly connected with teeth (18) on the right side of limiting slot (9) inner wall, the tooth block (17) and teeth (18) engagement, institute The right side movable inlaying for stating retainer plate (13) has fixed link (19), and the inner wall and sliding block of slot are opened up on the right side of the fixed link (19) (20) surface activity connection, the surface of the sliding block (20) are fixedly connected with plate (21), and the plate (21), which is located at, fixes The right end on the right side of bar (19), the main shaft (2) is fixedly connected with bracket (22), position of the bracket (22) close to sliding block (20) The place of setting offers card slot (23), and the surface of the sliding block (20) and plate (21) is flexibly connected with the inner wall of card slot (23).

2. a kind of natural gas differential pressure cold energy utilization device according to claim 1, it is characterised in that: the end cover of fan (7) it is overlapped on the right side of volute of blower (6), the end cover of fan (7) is fixedly connected by bolt with volute of blower (6).

3. a kind of natural gas differential pressure cold energy utilization device according to claim 1, it is characterised in that: the main shaft (2) Surface is fixedly connected with block (24), and the block (24) is located at the left side of impeller of blower (5).

4. a kind of natural gas differential pressure cold energy utilization device according to claim 1, it is characterised in that: the briquetting (16) Front view is in a rectangular trapezoid, and side of the briquetting (16) far from pressure spring (15) is inclined-plane.

5. a kind of natural gas differential pressure cold energy utilization device according to claim 1, it is characterised in that: the fan blades (12) Front elevational view is fan-shaped, and the guide rod (10) is located at the side of fan blades (12) far from main shaft (2), the shape of the guide rod (10) For arc, the fan blades (12) and the corresponding center of circle of guide rod (10) are located at same point.