CN215805263U - Single-stage compressor for start-up of 30 ten thousand tons of coal-to-ethylene glycol - Google Patents

Abstract

The utility model discloses a single-stage compressor for starting 30 ten thousand tons of coal-made ethylene glycol, which comprises a machine shell group, wherein the machine shell group is fixed on a public base, a servo motor, a coupler and an impeller assembly are also arranged on the public base, the impeller assembly is arranged in the machine shell group and comprises an impeller part, a transmission part and a shaft end disc part, one end of the impeller part is provided with the shaft end disc part, a central shaft of the shaft end disc part is in transmission connection with the transmission part, the transmission part is fixed on a triangular bracket, and the triangular bracket is fixed on the public base.

Description

Single-stage compressor for start-up of 30 ten thousand tons of coal-to-ethylene glycol

Technical Field

The utility model relates to the technical field of compressors, in particular to a single-stage compressor for startup of 30 ten thousand tons of coal-to-ethylene glycol.

Background

The compressors for the operation of preparing ethylene glycol from raw coal all adopt a welded axial split type multistage air blower structure, the installation and maintenance difficulty is high, the internal flow channel is complex, a user cannot complete the on-site maintenance task alone, and a professional manufacturer is required to complete the maintenance task. In addition, the leakage of internal gas is often accompanied, and the medium of the leakage is composed of nitrogen, carbon dioxide, hydrogen sulfide, hydrogen and water vapor, so that great hidden dangers are brought to the production and personnel safety of users. The two working conditions, namely a pure nitrogen working condition and a multi-medium working condition, are adopted, the defect of small adjusting range of the original fan performance is enlarged, and the fan is often accompanied with surge, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a single-stage compressor for starting up 30 ten thousand tons of coal-to-ethylene glycol, which solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a 30 ten thousand tons of coal system ethylene glycol single stage compressor for start, includes the casing group, the casing group is fixed in on the public base, still install servo motor, shaft coupling and impeller subassembly on the public base, impeller subassembly installs in the casing group, impeller subassembly includes impeller portion, drive division and axle head disc portion, impeller portion one side sets up the air intake, impeller portion one end installation axle head disc portion, axle head disc portion center pin is connected with the drive division transmission, drive division is fixed in on the A-frame, the A-frame is fixed in public base, drive division is connected with shaft coupling output transmission, the shaft coupling input is connected with servo motor's motor shaft transmission, the shaft coupling cover is still installed to the shaft coupling outside.

Preferably, the single-stage compressor for startup of 30 ten thousand tons of coal-to-ethylene glycol provided by the application is characterized in that a cooling assembly is installed on one side of the shell group, the cooling assembly comprises a cooling tank and a cooling water pipe group, the cooling water pipe group adopts a circuitous structure, and the cooling water pipe group is installed in the cooling tank.

Preferably, the single-stage compressor for 30 ten thousand tons of coal glycol to start working provided by the application, wherein, an inlet flange is installed on one side of the cooling box, an outlet flange is installed on the other side of the cooling box, an outlet expansion joint is installed between the outlet flange and the cooling box, an inlet expansion joint is installed between the inlet flange and the cooling box, and an inlet control butterfly valve is further installed at the inlet of the cooling box.

Preferably, the single-stage compressor for 30 ten thousand tons of coal glycol startup is provided, wherein a drain pipe is further arranged below the impeller part, a drain port flange is mounted on the drain pipe, and a drain port flange gasket is mounted on the drain port flange.

Preferably, according to the single-stage compressor for 30 ten thousand tons of coal-to-ethylene glycol start-up provided by the application, a shaft seal is installed between the shaft end disc part and the transmission part, a nitrogen pipeline is installed at the shaft seal, and a nitrogen pipeline flange is installed on the nitrogen pipeline.

Preferably, the single-stage compressor for the startup of 30 ten thousand tons of coal-to-ethylene glycol is provided, wherein the outer wall of the casing group is respectively provided with a sign and a nameplate.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the utility model has novel structural design, wherein the impeller is reduced from a multi-stage impeller to a single-stage impeller, the loss of a fan flow channel is reduced, the cleaning is easy, the integral energy consumption is low, the casing absorbs the noise generated by the air flow of the fan, the integral noise of the fan is reduced, and the requirement of environmental protection on less than or equal to 85Db (A) is met; in addition, the shell is horizontally split, the rotor condition can be checked by directly hoisting the upper shell, the field overhaul and installation of a user are easy, and the labor cost is greatly reduced.

(2) In the utility model, a shaft seal is arranged between the shaft end disc part and the transmission part to prevent gas leakage inside and outside, thereby meeting the zero leakage requirement, and the leakage between the rotor and the stator is ensured by adopting 0.7MPa.G normal temperature nitrogen for isolation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the present invention;

in the figure: the device comprises an outlet flange gasket 1, a machine shell group 2, a nameplate 3, an indication plate 4, a cooling water pipe group 5, an inlet flange gasket 6, a water outlet flange gasket 7, an air inlet 8, an impeller part 9, a shaft end disc part 10, a nitrogen pipeline 11, a nitrogen pipeline flange 12, a transmission part 13, a triangular support 14, a coupling cover 15, a common base 16, an outlet expansion joint 17, an inlet expansion joint 18 and an inlet control butterfly valve 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a single-stage compressor for starting 30 ten thousand tons of coal glycol, which comprises a machine shell group 2, wherein the outer wall of the machine shell group 2 is respectively provided with an indication board 4 and a nameplate 3, the machine shell group 2 is fixed on a common base 16, a servo motor, a coupling and an impeller assembly are further arranged on the common base 16, the impeller assembly is arranged in the machine shell assembly 2 and comprises an impeller part 9, a transmission part 13 and a shaft end disk part 10, one side of the impeller part 9 is provided with an air inlet 8, one end of the impeller part 9 is provided with a shaft end disk part 10, the central shaft of the shaft end disc part 10 is in transmission connection with a transmission part 13, the transmission part 13 is fixed on an A-frame 14, the triangular support 14 is fixed on a common base 16, the transmission part 13 is in transmission connection with the output end of the coupler, the input end of the coupler is in transmission connection with a motor shaft of the servo motor, and a coupler cover 15 is further mounted outside the coupler; a drain pipe is further arranged below the impeller part 9, a drain port flange is arranged on the drain pipe, and a drain port flange gasket 7 is arranged on the drain port flange.

According to the utility model, a cooling assembly is arranged on one side of a machine shell set 2, the cooling assembly comprises a cooling box and a cooling water pipe set 5, the cooling water pipe set 5 adopts a circuitous structure, and the cooling water pipe set 5 is arranged in the cooling box; cooling box one side installation import flange, import flange department installation import flange gasket 6, opposite side installation export flange, export flange department installation export flange gasket 1, install export expansion joint 17 between export flange and the cooling box, installation import expansion joint 18 between import flange and the cooling box, inlet control butterfly valve 19 is still installed to the cooling box entrance.

In the utility model, a shaft seal is arranged between a shaft end disc part 10 and a transmission part 13, a nitrogen pipeline 11 is arranged at the shaft seal, and a nitrogen pipeline flange 12 is arranged on the nitrogen pipeline 11. In the utility model, a shaft seal is arranged between the shaft end disc part and the transmission part to prevent gas leakage inside and outside, thereby meeting the zero leakage requirement, and the leakage between the rotor and the stator is ensured by adopting 0.7MPa.G normal temperature nitrogen for isolation.

The working principle is as follows: the using method of the utility model comprises the following steps:

A. when the servo motor works, the motor shaft drives the shaft coupling to rotate, the shaft coupling drives the transmission part to rotate, and the transmission part drives the impeller part to rotate;

B. in the rotation process of the impeller part, external airflow enters the cooling box through the air inlet pipeline and is uniformly cooled through the cooling water pipe group;

C. the cooled gas enters the impeller part to compress the gas, and the compressed gas is discharged outside through the exhaust pipeline;

D. in the gas compression process, the shaft seal is isolated by nitrogen, so that the phenomenon of gas leakage is prevented.

In conclusion, the impeller is novel in structural design, the impeller is reduced from a multi-stage impeller to a single-stage impeller, the loss of a fan flow channel is reduced, the cleaning is easy, the overall energy consumption is low, the casing absorbs the noise generated by the air flow of the fan, the overall noise of the fan is reduced, and the requirement of being less than or equal to 85Db (A) of the environmental protection requirement is met; in addition, the shell is horizontally split, the rotor condition can be checked by directly hoisting the upper shell, the field overhaul and installation of a user are easy, and the labor cost is greatly reduced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A single-stage compressor comprising a shell group (2), characterized in that: the machine shell group (2) is fixed on a public base (16), a servo motor, a coupling and an impeller assembly are further installed on the public base (16), the impeller assembly is arranged in the machine shell assembly (2), the impeller assembly comprises an impeller part (9), a transmission part (13) and a shaft end disc part (10), one side of the impeller part (9) is provided with an air inlet (8), one end of the impeller part (9) is provided with a shaft end disc part (10), the central shaft of the shaft end disc part (10) is in transmission connection with the transmission part (13), the transmission part (13) is fixed on a triangular support (14), the triangular support (14) is fixed on a common base (16), the transmission part (13) is in transmission connection with the output end of the coupler, the input end of the coupler is in transmission connection with a motor shaft of the servo motor, and a coupler cover (15) is further mounted outside the coupler.

2. A single stage compressor as claimed in claim 1 wherein: the cooling assembly is arranged on one side of the machine shell assembly (2), the cooling assembly comprises a cooling box and a cooling water pipe assembly (5), the cooling water pipe assembly (5) adopts a circuitous structure, and the cooling water pipe assembly (5) is arranged in the cooling box.

3. A single stage compressor as claimed in claim 2 wherein: the cooling box is characterized in that an inlet flange is installed on one side of the cooling box, an outlet flange is installed on the other side of the cooling box, an outlet flange gasket (1) is installed at the outlet flange, an outlet expansion joint (17) is installed between the outlet flange and the cooling box, an inlet expansion joint (18) is installed between the inlet flange and the cooling box, and an inlet control butterfly valve (19) is further installed at the inlet of the cooling box.

4. A single stage compressor as claimed in claim 1 wherein: a drain pipe is further arranged below the impeller part (9), a drain port flange is mounted on the drain pipe, and a drain port flange gasket (7) is mounted on the drain port flange.

5. A single stage compressor as claimed in claim 1 wherein: and a shaft seal is arranged between the shaft end disc part (10) and the transmission part (13), a nitrogen pipeline (11) is arranged at the shaft seal, and a nitrogen pipeline flange (12) is arranged on the nitrogen pipeline (11).

6. A single stage compressor as claimed in claim 1 wherein: and the outer wall of the machine shell group (2) is respectively provided with a sign (4) and a nameplate (3).

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