CN202789590U - Novel centrifugal blower applicable to delivering special gases - Google Patents
Novel centrifugal blower applicable to delivering special gases Download PDFInfo
- Publication number
- CN202789590U CN202789590U CN 201220365908 CN201220365908U CN202789590U CN 202789590 U CN202789590 U CN 202789590U CN 201220365908 CN201220365908 CN 201220365908 CN 201220365908 U CN201220365908 U CN 201220365908U CN 202789590 U CN202789590 U CN 202789590U
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- carbon ring
- centrifugal blower
- ring seal
- seal
- shaft end
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Abstract
Disclosed is a novel centrifugal blower applicable to delivering special gases. The novel centrifugal blower comprises a stator portion and a rotor portion, internal impellers are sealed in an interstage seal manner, and shaft ends are sealed in a shaft end seal manner. The novel centrifugal blower is characterized in that the shaft end seal comprises an inner maze seal component and an outer carbon ring seal component. The carbon ring seal component is simple in structure and reliable in sealing, and is applied on the centrifugal blower, so that delivery of special gases such as coal gas, chemical and industrial tail gas and technical gases thereof is realized, and protection is realized by introducing high-pressure inert gas, requirement for continually increasing functions of the blower is met, and application field of the centrifugal blower is widened.
Description
Technical field
The utility model relates to a kind of multistage centrifugal blower, is the welded structure multistage centrifugal blower of the particularity gases such as a kind of conveying high-pressure, toxic, corrosivity.
Background technique
Centrifugal blower is a kind of turbocompressor tool of carrying for gas, and its sealing is divided into inner sealing and shaft end seal, and inner sealing mainly is to prevent and control internal leakage in the centrifugal compressor runner, and shaft end seal mainly is to prevent that internal gas from leaking.Shaft end seal is different with pressure according to the medium of carrying, and the sealing means of employing is different, common are the forms such as mazy type, air exhausting type, gas-filled type, mechanical sealing.
The main frame of blower fan comprises stator department, rotor part two large divisions, and its structure as shown in Figure 1.Separation structure in the stator department level, during blower fan work, by the High Rotation Speed of impeller, step by step supercharging is pooled to spiral case and then discharges.In this course, (inlet end is negative pressure slightly in order to prevent gas after the supercharging from leaking outside, in order to prevent in the suction casing), designed sealing at axle head, when carrying air etc. without the centrifugal blower of etchant gas, usually adopt labyrinth seal as shaft end seal, I adopt this mode by company's centrifugal blower mostly.This sealing configuration is simple, and is easy for installation, can realize the sealing to general gas flow.But for the special user of a lot of conveying special gas, with regard to needing sealing configuration is improved, guarantee that the nothing of high pressure, special media is leaked.In order to guarantee the versatility of welded structure centrifugal blower series model, to existing blower fan structure larger change can not be arranged, also to guarantee sealing effect, therefore we compare and analyze various sealing means: add air extracting seal as adopting the outside framework oil seal filler, but what have the anti-high speed of outside framework oil seal now can not satisfy high pressure, high voltage bearingly can not satisfy high linear speed, the life-span is shorter; The mechanical seal good sealing effect, but because the centrifugal blower rotating speed is high, the Cooling and Lubricator of bad realization sealing, and the blower fan structure change is large, can not satisfy the condition of versatility.
The model utility content
The purpose of this utility model is to provide a kind of special seal blower fan, by sealing structure of shaft end is improved, guarantees that the special gas of conveying is not revealed.
The technical scheme in the invention for solving the technical problem is: a kind of Novel centrifugal blower that is applicable to carry special gas, blower fan still is comprised of stator department and rotor part, the inter-stage that is sealed between internal impeller seals, the shaft end seal that is sealed at axle head, it is characterized in that described shaft end seal comprises inboard labyrinth seal assemblies and the carbon ring seal assembly in the outside.
Described carbon ring seal assembly is comprised of carbon ring seal body, graphite carbon ring, spring and O type circle, and supporting axle sleeve is installed in the rotor part relevant position, and the between mounting O-shaped rings seals; The carbon ring seal body is nested with on axle sleeve; be provided with some carbocyclic rings chamber in the inboard of carbon ring seal body; described graphite carbon ring is placed in the carbocyclic ring chamber and with axle sleeve and directly contacts; the spring of graphite carbon ring outer rim can compensate the wearing and tearing of graphite carbon ring; in described carbon ring seal body, have the filling channel that penetrates into the inboard, carry out anti-leak protection by passing into pressurized gas.
Inboard at institute's carbon ring seal body still is provided with labyrinth seal assemblies, for increasing sealing effect.
The beneficial effects of the utility model are: carbon ring sealing structure is simple, sealing is reliable; application on centrifugal blower; satisfied the conveying of coal gas, chemical industry and the particularity gases such as chemical industry tail gas and manufacturability gas thereof; and by passing into high-pressure inert gas protection; satisfy the demand that constantly increases the specific use blower, widened the centrifugal blower application.
Description of drawings
Fig. 1 is original centrifugal blower structure schematic representation;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the partial enlarged drawing at A place among Fig. 2;
Fig. 4 is carbon ring seal assembly whole-cutaway view;
Fig. 5 is the side view of Fig. 4;
Among the figure: 1 stator department, 2 rotor part, 21 axle sleeves, the sealing of 3 inter-stages, 4 labyrinth seal assemblies, 5 carbon ring seal assemblies, 51 carbon ring seal bodies, 52 graphite carbon rings, 53 springs, 54O type circle, 55 filling channels, 56 locating studs location, 57 screws.
Embodiment
Such as Fig. 2～shown in Figure 5,
A kind of Novel centrifugal blower that is applicable to carry special gas, blower fan still is comprised of stator department 1 and rotor part 2, the inter-stage that is sealed between internal impeller seals 3, mainly be to prevent and control the interior internal leakage of centrifugal compressor runner, at the shaft end seal that is sealed into of axle head, this shaft end seal comprises inboard labyrinth seal assemblies 4 and the carbon ring seal assembly 5 in the outside.Mainly be to prevent that internal gas from leaking.
The carbon ring seal assembly is comprised of carbon ring seal body 51, graphite carbon ring 52, spring 53 and O type circle 54, and supporting axle sleeve 21 is installed in the relevant position on the axle of rotor part 2, and the fit mode is that hot jacket closes, and between mounting O-shaped rings 54 seals.Carbon ring seal body 51 is nested with on axle sleeve 21, be provided with some carbocyclic rings chamber in the inboard of carbon ring seal body, graphite carbon ring 52 is placed in the carbocyclic ring chamber and with axle sleeve and directly contacts, in the rotor operation process, graphite carbon ring 52 floating seals, guarantee gas zero leakage, the spring 53 of outer rim can compensate the wearing and tearing of graphite carbon ring.In order to guarantee airtight effect, in carbon ring seal body 51, have the filling channel 55 that penetrates into the inboard, filling channel connects the external source high-pressure air source, fills the pressurized gas protection according to field condition.
Provide gas componant and the discharge pressure of carrying special gas according to the user, select whether to adopt the multistage centrifugal blower of special seal.Separation structure during the sealing of this structure blower fan is adopted, easy to process, during installation, first with the axle sleeve hot charging to axle, then with carbon ring seal body integral assembling on axle sleeve, between is installed two O type circle seal rings and is sealed.Carbon ring seal body wherein is split-type structural, is comprised of two semicircular ring, by locating stud location 56 being connected connection with screw.During installation, graphite carbon ring is placed the carbocyclic ring chamber of carbon ring seal body inboard, guarantee fitting tightly of graphite carbon ring and axle sleeve, in the rotor operation process, the graphite carbon ring floating seal, guarantee gas zero leakage, along with the wearing and tearing of graphite carbon ring, the spring of graphite carbon ring outer rim can compensate this wear extent, and assurance fits tightly with axle, and being filled with of pressurized gas guarantees not revealing of gas especially preferably.Except the described technical characteristics of specification, be the known technology of those skilled in the art.
Claims (2)
1. Novel centrifugal blower that is applicable to carry special gas, blower fan still is comprised of stator department and rotor part, the inter-stage that is sealed between internal impeller seals, the shaft end seal that is sealed at axle head, it is characterized in that described shaft end seal comprises inboard labyrinth seal assemblies and the carbon ring seal assembly in the outside.
2. a kind of Novel centrifugal blower that is applicable to carry special gas according to claim 1, it is characterized in that, described carbon ring seal assembly is comprised of carbon ring seal body, graphite carbon ring, spring and O type circle, supporting axle sleeve is installed in the rotor part relevant position, and the between mounting O-shaped rings seals; The carbon ring seal body is nested with on axle sleeve, be provided with some carbocyclic rings chamber in the inboard of carbon ring seal body, described graphite carbon ring is placed in the carbocyclic ring chamber and with axle sleeve and directly contacts, the spring of graphite carbon ring outer rim can compensate the wearing and tearing of graphite carbon ring, has to penetrate into inboard filling channel in described carbon ring seal body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220365908 CN202789590U (en) | 2012-07-26 | 2012-07-26 | Novel centrifugal blower applicable to delivering special gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220365908 CN202789590U (en) | 2012-07-26 | 2012-07-26 | Novel centrifugal blower applicable to delivering special gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789590U true CN202789590U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220365908 Expired - Lifetime CN202789590U (en) | 2012-07-26 | 2012-07-26 | Novel centrifugal blower applicable to delivering special gases |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789590U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570184A (en) * | 2015-12-23 | 2016-05-11 | 三一环保科技有限公司 | Air seal structure and steam compressor thereof |
| CN105604963A (en) * | 2015-12-24 | 2016-05-25 | 江苏金通灵流体机械科技股份有限公司 | Coal gas pressurizing machine |
| CN106122078A (en) * | 2016-08-30 | 2016-11-16 | 湖北双剑鼓风机股份有限公司 | The asymmetric carbon ring seal device of card slot type for centrifugal blower |
| CN106704558A (en) * | 2016-12-12 | 2017-05-24 | 重庆江增船舶重工有限公司 | Gearbox structure for centrifugal machine |
| CN106837850A (en) * | 2017-02-27 | 2017-06-13 | 南通大通宝富风机有限公司 | A kind of sealing gland for vapour compression machine |
| CN107191387A (en) * | 2017-07-06 | 2017-09-22 | 沈阳透平机械股份有限公司 | A kind of centrifugal compressor of big support span |
| CN107842481A (en) * | 2017-11-21 | 2018-03-27 | 滨化集团股份有限公司 | Reciprocating compressor improvement of padding structure |
| CN113107896A (en) * | 2021-05-08 | 2021-07-13 | 唐山市环保机械工程有限公司 | Nondestructive efficient sealing device and method for centrifugal blower or centrifugal compressor |
-
2012
- 2012-07-26 CN CN 201220365908 patent/CN202789590U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570184A (en) * | 2015-12-23 | 2016-05-11 | 三一环保科技有限公司 | Air seal structure and steam compressor thereof |
| CN105604963A (en) * | 2015-12-24 | 2016-05-25 | 江苏金通灵流体机械科技股份有限公司 | Coal gas pressurizing machine |
| CN106122078A (en) * | 2016-08-30 | 2016-11-16 | 湖北双剑鼓风机股份有限公司 | The asymmetric carbon ring seal device of card slot type for centrifugal blower |
| CN106704558A (en) * | 2016-12-12 | 2017-05-24 | 重庆江增船舶重工有限公司 | Gearbox structure for centrifugal machine |
| CN106837850A (en) * | 2017-02-27 | 2017-06-13 | 南通大通宝富风机有限公司 | A kind of sealing gland for vapour compression machine |
| CN107191387A (en) * | 2017-07-06 | 2017-09-22 | 沈阳透平机械股份有限公司 | A kind of centrifugal compressor of big support span |
| CN107842481A (en) * | 2017-11-21 | 2018-03-27 | 滨化集团股份有限公司 | Reciprocating compressor improvement of padding structure |
| CN113107896A (en) * | 2021-05-08 | 2021-07-13 | 唐山市环保机械工程有限公司 | Nondestructive efficient sealing device and method for centrifugal blower or centrifugal compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |