CN214305252U

CN214305252U - Magnetic suspension ORC turbine generator outlet chamber sealing structure

Info

Publication number: CN214305252U
Application number: CN202120206807.6U
Authority: CN
Inventors: 宋本帅; 丁振东; 张继龙
Original assignee: Zhejiang Boxu New Energy Technology Co ltd
Current assignee: Zhejiang Boxu New Energy Technology Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-09-28
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a magnetic suspension ORC turbo generator room seal structure of being qualified for next round of competitions, including installing the sealed wiring lid on generator housing and setting up on sealed wiring lid, and the sealing plug that can electrically conduct, sealed wiring lid be equipped with along its axial link up the setting, and with sealing plug matched with wiring hole, the sealing plug passes the wiring hole, and still be equipped with the sealing device who is used for preventing working medium leakage between sealing plug and the wiring hole. So set up, the sealing plug has electric conductivity, is convenient for the generator to be qualified for the next round of competitions indoor outer switch-on connecting wire, and sealing device between sealing plug and the wiring hole effectively prevents the working medium and leaks, has strengthened entire system's leakproofness, has realized the cyclic utilization of working medium, can not leak the working medium and cause accident and extravagant loss, practices thrift the cost, has solved current generator and has qualified for the next round of competitions the problem that the working medium leaked in the room.

Description

Magnetic suspension ORC turbine generator outlet chamber sealing structure

Technical Field

The utility model relates to a generator is qualified for next round of competitions room sealing technical field, more specifically says, relates to a magnetic suspension ORC turbo generator is qualified for next round of competitions room seal structure.

Background

In an ORC (Organic Rankine Cycle) system, liquid working medium enters a heat exchanger through a working medium pump to exchange heat with steam or hot water to become gaseous working medium, the gaseous working medium enters a magnetic suspension ORC turbine generator to drive a turbine to do work to drive a motor to generate power, and the gaseous working medium enters a condenser after doing work and is condensed into liquid to enter a liquid storage tank to circulate in sequence. However, the outlet chamber of the existing generator has the problem of working medium leakage, and the working medium is usually relatively expensive, or flammable and explosive, or slightly toxic, so that working medium loss and personal harm can be caused by the leakage of the working medium when the turbine works. Therefore, the improvement of the structure of the outlet chamber of the generator is needed to solve the defect of slight leakage of the working medium.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the problem that exists among the above-mentioned background art, provide a magnetic suspension ORC turbo generator room seal structure of being qualified for the next round of competitions.

The utility model aims at realizing through the following technical scheme:

the utility model provides a pair of magnetic suspension ORC turbo generator room seal structure of being qualified for next round of competitions, be in including installing sealed wiring lid and the setting on generator housing sealed wiring is covered, and can electrically conductive sealing plug, sealed wiring lid be equipped with along its axial link up the setting, and with sealing plug matched with wiring hole, the sealing plug passes wiring hole, just the sealing plug with still be equipped with the sealing device who is used for preventing working medium leakage between the wiring hole, sealing device is including setting up the sealing plug with seal cover between the wiring hole is in with the setting the seal cover with sealing washer between the wiring hole, the sealing plug sets up on the outer wall of sealing plug, sealed cover be equipped with the sealing washer cooperatees, supplies the recess that the sealing washer stretched into.

Preferably, the number of the sealing rings is at least two, and the grooves correspond to the sealing rings one to one.

Preferably, the sealing ring is an "O" ring.

Preferably, the first end in wiring hole is equipped with first stair structure, sealed cover be equipped with the second stair structure of first stair structure looks joint.

Preferably, still including setting up the sealing plug separation blade of wiring hole second end, the sealing plug separation blade be equipped with the seal cover cooperatees, supplies the through-hole that the seal cover passed, sealed cover be equipped with the third stair structure of sealing plug separation blade looks joint, just the sealing plug separation blade with sealed wiring lid corresponds and is equipped with the mounting hole that is used for the cartridge fastener.

Preferably, the sealing plug further comprises a compression nut which is in threaded connection with the sealing sleeve and is used for compressing the sealing plug separation blade.

Preferably, the wire sealing plug further comprises wire noses which are arranged at two ends of the sealing plug and are used for connecting wire connecting terminals.

Preferably, both ends of the sealing plug are provided with a fourth step structure clamped with the wire nose and a fixing part used for pressing the wire nose.

Preferably, the fixing member is a fixing nut threadedly coupled to the sealing plug.

The utility model provides an among the technical scheme, a magnetic suspension ORC turbogenerator room seal structure of being qualified for next round of competitions is including installing the sealed wiring lid on generator housing and setting up on sealed wiring lid, and the sealing plug that can electrically conduct, sealed wiring lid be equipped with along its axial link up the setting, and with sealing plug matched with wiring hole, the sealing plug passes wiring hole, and still be equipped with the sealing device who is used for preventing working medium leakage between sealing plug and the wiring hole. So set up, the sealing plug has electric conductivity, is convenient for the generator to be qualified for the next round of competitions indoor outer switch-on connecting wire, and sealing device between sealing plug and the wiring hole effectively prevents the working medium and leaks, has strengthened entire system's leakproofness, has realized the cyclic utilization of working medium, can not leak the working medium and cause accident and extravagant loss, practices thrift the cost, has solved current generator and has qualified for the next round of competitions the problem that the working medium leaked in the room.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a sealing structure of an outlet chamber of a magnetic suspension ORC turbine generator in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a sealing plug in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a sealing wire cover according to an embodiment of the present invention.

In fig. 1-3:

1-sealing the wire cover; 2-sealing plug; 3-sealing ring; 4-sealing plug stop piece; 5-a fastener; 6-pressing the nut; 7-fixing the nut; 8-wire nose; 9-wiring holes; 10-sealing sleeve; 11-a groove; 12-a first step structure; 13-a second stepped structure; 14-a third stepped configuration; 15-a fourth step structure; 16-a first external thread; 17-second external thread.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-3, the magnetic suspension ORC turbine generator outlet chamber sealing structure provided in this embodiment includes a sealing wire cover 1 mounted on a generator housing, and a sealing plug 2 disposed on the sealing wire cover 1 and capable of conducting electricity. In use, the hermetically sealed wire cover 1 is fixed to the generator housing, and as shown in fig. 1, the hermetically sealed wire cover 1 has an upper end serving as an outer space of the generator housing and a lower end serving as an inner space of the generator housing. The sealing plug 2 is a single-core sealing plug which has the advantages of high temperature resistance, high pressure resistance, no deformation, good sealing performance in a complex environment and the like. In addition, the single-core sealing plug can be formed by processing copper, so that the electric conductivity is good, and the wiring is convenient. The sealing wire cover 1 is provided with a wiring hole 9 which is arranged along the axial direction of the sealing wire cover in a penetrating way and is matched with the sealing plug 2, the sealing plug 2 penetrates through the wiring hole 9, the two ends of the sealing plug 2 extend out of the sealing wire cover 1, and a sealing device for preventing working medium leakage is further arranged between the sealing plug 2 and the wiring hole 9. It should be noted that, regarding the arrangement position of the sealing structure of the wire outlet chamber of the magnetic suspension ORC turbine generator shown in fig. 1, the up-down direction in the figure is the pointed up-down direction, and the axial direction of the sealing wiring cover. So set up, the sealing plug has electric conductivity, is convenient for the generator to be qualified for the next round of competitions indoor outer switch-on connecting wire, and sealing device between sealing plug and the wiring hole effectively prevents the working medium and leaks, has strengthened entire system's leakproofness, has realized the cyclic utilization of working medium, can not leak the working medium and cause accident and extravagant loss, practices thrift the cost, has solved current generator and has qualified for the next round of competitions the problem that the working medium leaked in the room.

As shown in fig. 1, the sealing device comprises a sealing sleeve 10 disposed between the sealing plug 2 and the wiring hole 9, and a sealing ring 3 disposed between the sealing sleeve 10 and the wiring hole 9. The sealing sleeve 10 is arranged on the outer wall of the sealing plug 2, and the sealing sleeve 10 and the sealing plug 2 can be integrally processed and formed in the actual processing. The material of the sealing sleeve 10 is Poly-ether-ether-ketone (PEEK), has excellent properties of high temperature resistance, chemical corrosion resistance, self-lubrication, easy processing, high mechanical strength and the like, can be used as a high temperature resistant structural material and an electrical insulating material, and is safe and reliable to use. The seal cover 10 is provided with a groove 11 which is matched with the seal ring 3 and is used for the seal ring 3 to extend into, and the seal ring 3 is arranged in the groove, so that the installation is convenient, and the seal ring is limited to a certain extent. The insulating sealing sleeve is arranged outside the sealing plug, the wiring hole is sealed, electric leakage is prevented, the sealing performance of the device is further improved by the sealing ring, and working medium leakage is prevented.

Further, the number of the sealing rings 3 is at least two, the sealing rings are distributed at intervals along the axial direction of the sealing line cover 1, the grooves 11 correspond to the sealing rings 3 one by one, and the sealing rings 3 are fixed at corresponding positions. Thus, multiple seals are formed, and the air tightness of the device is guaranteed.

As an alternative embodiment, the sealing ring 3 is an "O" ring. In particular, a butyl rubber O-shaped sealing ring can be selected, has excellent high temperature resistance, aging resistance, stable chemical properties and the like, and is very suitable for application in an ORC system.

As shown in fig. 3, a first step structure 12 is provided at a first end of the wiring hole 9, i.e., at an upper end of the wiring hole 9, and a second step structure 13 engaged with the first step structure 12 is provided at the sealing sleeve 10. That is to say, the sealing wire cover 1 has set up the stair structure near the outside one side of casing, and the stair structure on the seal cover 10 and the stair structure joint in the wiring hole 9 are in the same place, can also play the pressure-bearing effect when forming the ladder sealed, bear the impact pressure of the gas working medium in the generator housing to the sealing plug.

In this embodiment, the magnetic suspension ORC turbine generator outlet chamber sealing structure further includes a sealing plug baffle 4 disposed at the second end of the wiring hole 9, i.e., the lower end of the wiring hole 9, i.e., the sealing plug baffle 4 is disposed on one side of the sealing wiring cover 1 close to the inside of the housing, so as to receive the fixed sealing plug 2. The sealing plug separation blade 4 is provided with a through hole which is matched with the sealing sleeve 10 and is used for the sealing sleeve 10 to pass through, the sealing sleeve 10 is provided with a third step structure 14 which is connected with the sealing plug separation blade 4 in a clamped mode, the third step structure 14 is arranged in parallel and level with the lower end face of the sealing connection wire cover 1, so that the sealing plug separation blade 4 is tightly attached to the lower end of the sealing connection wire cover 1, and a certain sealing effect can be achieved. And the sealing plug separation blade 4 and the sealing joint line cover 1 are correspondingly provided with mounting holes for inserting the fasteners 5, the fasteners 5 can be bolts, and the mounting holes are a plurality of and are uniformly distributed along the circumferential direction. During installation, the sealing plug 2 is inserted into the wiring hole 9 from bottom to top until the second step structure 13 abuts against the first step structure 12, and then the sealing plug blocking piece 4 is installed and fixed on the sealing wiring cover 1 through bolts. Can realize like this that the sealing plug is connected with dismantling of sealing wire cover, be convenient for quick installation and dismantlement, the sealing plug is changed conveniently.

Further, the magnetic suspension ORC turbine generator outlet chamber sealing structure further comprises a compression nut 6 which is in threaded connection with the sealing sleeve 10 and is used for compressing the sealing plug separation blade 4. As shown in fig. 2, the gland 10 is provided with a first external thread 16 for cooperation with the compression nut 6. After the sealing plug separation blade 4 is fixed, the compression nut 6 is screwed, so that the sealing plug separation blade 4 is compressed, the connection reliability of the device is guaranteed, and the structure is firmer.

In a preferred scheme of the embodiment, the magnetic suspension ORC turbine generator outlet chamber sealing structure further comprises wire noses 8 which are arranged at two ends of the sealing plug 2 and used for connecting the wiring terminals. The wire nose 8 has good conductivity, the wire nose 8 at the lower end is connected with a motor stator wire, and the wire nose 8 at the upper end is connected with an external cable to form a conductive path. Therefore, the connection is firmer through the wire nose, and the use is safer and more convenient.

In the embodiment of the present invention, the two ends of the sealing plug 2 are respectively provided with the fourth step structure 15 connected with the wire nose 8 and the fixing member for pressing the wire nose 8. As shown in fig. 2, the sealing plug 2 is processed into a stepped shaft form, the sealing sleeve 10 and the middle shaft section are integrated into a whole, two wire noses 8 penetrate into the shaft respectively and abut against the fourth stepped structure 15, and then the shaft is clamped and fixed by a fixing piece, so that the installation is convenient and fast. Specifically, the fixing part is a fixing nut 7 in threaded connection with the sealing plug 2, second external threads 17 matched with the fixing nut 7 are arranged at two ends of the sealing plug 2, and a gasket is placed in the fixing part during installation so as to improve the connection strength. In addition, a double-nut locking structure can be adopted, so that the locking effect is effectively realized, and the fixation is more firm.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a magnetic suspension ORC turbo generator room seal structure of being qualified for the next round of competitions, its characterized in that is including installing sealing wire lid (1) on generator housing and setting up sealing plug (2) on sealing wire lid (1) and can electrically conduct, sealing wire lid (1) be equipped with along its axial through setting and with sealing plug (2) matched with wiring hole (9), sealing plug (2) pass wiring hole (9), just sealing plug (2) with still be equipped with the sealing device who is used for preventing the working medium leakage between wiring hole (9), sealing device is including setting up sealing cover (10) between sealing cover (2) and wiring hole (9) and setting up sealing washer (3) between sealing cover (10) and wiring hole (9), sealing cover (10) set up on the outer wall of sealing plug (2), the sealing sleeve (10) is provided with a groove (11) which is matched with the sealing ring (3) and is used for the sealing ring (3) to extend into.

2. The magnetic levitation ORC turbine generator outlet chamber seal structure according to claim 1, characterized in that the number of the seal rings (3) is at least two, and the grooves (11) correspond to the seal rings (3) one by one.

3. The magnetic levitation ORC turbine generator outlet chamber seal structure according to claim 1, characterized in that the seal ring (3) is an "O" type seal ring.

4. The magnetic levitation ORC turbine generator outlet chamber sealing structure according to claim 1, characterized in that the first end of the wiring hole (9) is provided with a first step structure (12), and the sealing sleeve (10) is provided with a second step structure (13) which is clamped with the first step structure (12).

5. The magnetic suspension ORC turbine generator outlet chamber sealing structure according to claim 1, further comprising a sealing plug baffle (4) disposed at the second end of the wiring hole (9), wherein the sealing plug baffle (4) is provided with a through hole matched with the sealing sleeve (10) for the sealing sleeve (10) to pass through, the sealing sleeve (10) is provided with a third step structure (14) clamped with the sealing plug baffle (4), and the sealing plug baffle (4) and the sealing wiring cover (1) are correspondingly provided with mounting holes for inserting fasteners (5).

6. The magnetic suspension ORC turbine generator outlet chamber sealing structure according to claim 5, further comprising a compression nut (6) in threaded connection with the sealing sleeve (10) for compressing the sealing plug baffle (4).

7. The magnetic levitation ORC turbine generator outlet chamber sealing structure as claimed in claim 1, further comprising wire noses (8) arranged at both ends of the sealing plug (2) for connecting wire terminals.

8. The magnetic suspension ORC turbine generator outlet chamber sealing structure according to claim 7, characterized in that both ends of the sealing plug (2) are provided with a fourth step structure (15) clamped with the wire nose (8) and a fixing piece for pressing the wire nose (8).

9. The magnetic levitation ORC turbine generator outlet chamber sealing structure according to claim 8, wherein the fixing member is a fixing nut (7) threadedly connected to the sealing plug (2).