CN110454439A - A kind of spiral case - Google Patents
A kind of spiral case Download PDFInfo
- Publication number
- CN110454439A CN110454439A CN201910904517.6A CN201910904517A CN110454439A CN 110454439 A CN110454439 A CN 110454439A CN 201910904517 A CN201910904517 A CN 201910904517A CN 110454439 A CN110454439 A CN 110454439A
- Authority
- CN
- China
- Prior art keywords
- compressor
- exhaust runner
- spiral case
- sections
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to centrifugal compressor technical fields, specifically disclose a kind of spiral case, including spiral case ontology and set on the intrinsic first exhaust runner and second exhaust runner for being used to collect gas of spiral case, the both ends of the first exhaust runner are connected to the inlet end of the outlet end of one section of impeller of compressor and intercooler respectively, the exhaust end of the intercooler is connected to the input end of two sections of first stage impellers of compressor, and the both ends of the second exhaust runner are connected to the outlet end of two sections of impellers of compressor and gas pipeline respectively；The first exhaust runner and second exhaust runner are set as cuboid, and its section is rectangle.The problem of spiral case with above structure, the axial width for being able to solve spiral case in the prior art is larger, therefore the length of compressor main shaft is also long, can improve the design difficulty of compressor drum kinetically in this way.
Description
Technical field
The invention belongs to centrifugal compressor technical field more particularly to a kind of spiral cases.
Background technique
It is well known that large centrifugal refrigeration compressor used in the current industries of coal chemical industry, petrochemical industry etc. both at home and abroad
It requires to guide to cooler by spiral case by the gas of wheel compresses or draw compressor to enter gas pipeline, to protect
The delivery temperature of gas is demonstrate,proved, energy is saved and improves efficiency, compressor can carry out two sections of compressions to gas, be divided into compressor one
Section and two sections of compressor, and this two sections compressions are composed of several impellers respectively.The axial width of spiral case in the prior art
Spend larger, therefore the length of compressor main shaft is also long, can improve the design difficulty of compressor drum kinetically in this way.
Summary of the invention
The purpose of the present invention is to provide a kind of spiral cases, larger with the axial width for solving spiral case in the prior art, therefore
The problem of length of compressor main shaft is also long, can improve the design difficulty of compressor drum kinetically in this way.
In order to achieve the above object, the technical solution of the present invention is as follows: a kind of spiral case, including spiral case ontology and it is set to spiral case
It is intrinsic for collecting the first exhaust runner and second exhaust runner of gas, the both ends of the first exhaust runner respectively with
The outlet end of one section of impeller of compressor is connected to the inlet end of intercooler, the exhaust end and pressure of the intercooler
The input end of two sections of first stage impellers of contracting machine is connected to, the both ends of the second exhaust runner respectively with two sections of impellers of compressor
Outlet end is connected to gas pipeline；The first exhaust runner and second exhaust runner are set as cuboid, and its section is
Rectangle.
The working principle of the technical program is: the gas compressed by one section of compressor is from one section of impeller of compressor
Outlet end intercooler entered by first exhaust runner cooled down, gas after cooling enters two sections of compressor
Second-compressed is carried out, compressed gas enters second exhaust runner from the outlet end of two sections of impellers of compressor, then defeated
It is sent to compressor air-discharging pipeline.
The beneficial effect of the technical program is: the technical program uses the first exhaust runner and second row of rectangular section
Flow channel is compared compared with using the grate flow channel of circular cross-section, can guarantee in the case where circulation area, reduces spiral case
Axial dimension, the length of compressor main shaft can be effectively reduced, to optimize the performance of compressor.
Further, all impellers of one section of the compressor and two sections of compressor of all impellers lean against setting, described
The impeller and two sections of impeller that one section of compressor one end close to each other are end, the first exhaust runner and second exhaust
Runner is installed in backrest-type.
Further, the sectional area of the first exhaust runner and second exhaust runner is as gas flow direction gradually increases
Greatly.The technical program can reduce the flow velocity of gas.
Further, the material of the spiral case ontology is cast steel.
Further, first exhaust runner and second exhaust runner are integrally formed.Integrally formed first exhaust runner and
Second exhaust runner keeps the assembly of spiral case and processing all more simple.
Further, be communicated with secondary inlet pipe at the chopped-off head of two sections of the compressor, secondary inlet pipe be equipped with unidirectionally into
Air valve, the inlet end of secondary inlet pipe are communicated with air inlet tank.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of spiral case application of the present invention on the compressor；
Fig. 2 is a kind of cross-sectional view of spiral case of the present invention；
Fig. 3 is the cross-sectional view of B-B in Fig. 2；
Fig. 4 is the cross-sectional view of C-C in Fig. 2.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: one section of first exhaust runner 1, second exhaust runner 2, compressor final stage
Impeller 3, two sections of impellers 4 of compressor, spiral case ontology 5.
Embodiment is basic as shown in attached drawing 1-4: a kind of spiral case, the use including spiral case ontology 5 and in spiral case ontology 5
In the first exhaust runner 1 and second exhaust runner 2 of collecting gas, the material of spiral case ontology 1 is cast steel.First exhaust runner 1
Both ends be connected to respectively with the inlet end of the outlet end of one section of impeller 3 of compressor and intercooler, intercooler
Exhaust end is connected to the input end of two sections of first stage impellers of compressor, the both ends of second exhaust runner 2 respectively with two sections of ends of compressor
The outlet end of grade impeller 4 is connected to gas pipeline；First exhaust runner 1 and 2 section of second exhaust runner are rectangle.Compressor
One section of all impellers and two sections of compressor of all impellers lean against setting, the outlet end of one section of impeller 3 of compressor and
The outlet end of two sections of impellers 4 of compressor is close to each other, and first exhaust runner 1 and second exhaust runner 2 are installed in backrest-type.
The sectional area of first exhaust runner 1 and second exhaust runner 2 is as gas flow direction is gradually increased.First exhaust runner 1
It is integrally formed with second exhaust runner 2, integrally formed first exhaust runner 1 and second exhaust runner 2 make the assembly of spiral case
It is all more simple with processing.Be communicated with secondary inlet pipe at the chopped-off head that two sections of compressor, secondary inlet pipe be equipped with unidirectionally into
Air valve, the inlet end of secondary inlet pipe are communicated with air inlet tank.
Specific implementation process is as follows:
The gas compressed by one section of compressor passes through first exhaust runner from the outlet end of one section of impeller 3 of compressor
1, which enters intercooler, is cooled down, and gas after cooling enters two sections of progress second-compresseds of compressor, compressed gas
Body enters second exhaust runner 2 from the outlet end of two sections of impellers 4 of compressor, is then delivered to compressor air-discharging pipeline.In
During this, the gas in air inlet tank, which can be entered by secondary inlet pipe in two sections of compressor, to be compressed.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (6)
1. a kind of spiral case, it is characterised in that: intrinsic for collecting the first of gas including spiral case ontology and set on spiral case
Grate flow channel and second exhaust runner, the both ends of the first exhaust runner outlet end with one section of impeller of compressor respectively
It is connected to the inlet end of intercooler, the exhaust end of the intercooler and the input end of two sections of first stage impellers of compressor connect
Logical, the both ends of the second exhaust runner are connected to the outlet end of two sections of impellers of compressor and gas pipeline respectively；It is described
First exhaust runner and second exhaust runner are set as cuboid, and its section is rectangle.
2. a kind of spiral case according to claim 1, it is characterised in that: all impellers and compressor of one section of the compressor
Two sections of all impellers lean against setting, the outlet of the two sections of impellers in outlet end and compressor of one section of impeller of the compressor
Hold close to each other, the first exhaust runner and second exhaust runner are installed in backrest-type.
3. a kind of spiral case according to claim 1, it is characterised in that: the first exhaust runner and second exhaust runner
Sectional area is as gas flow direction is gradually increased.
4. a kind of spiral case according to claim 1, it is characterised in that: the material of the spiral case ontology is cast steel.
5. a kind of spiral case according to claim 1, it is characterised in that: the first exhaust runner and second exhaust runner are equal
It is integrally formed.
6. a kind of spiral case according to claim 1, it is characterised in that: be communicated with second level at the chopped-off head of two sections of the compressor
Air inlet pipe, secondary inlet pipe are equipped with breather cheek valve, and the inlet end of secondary inlet pipe is communicated with air inlet tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904517.6A CN110454439B (en) | 2019-09-24 | 2019-09-24 | Volute casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904517.6A CN110454439B (en) | 2019-09-24 | 2019-09-24 | Volute casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110454439A true CN110454439A (en) | 2019-11-15 |
| CN110454439B CN110454439B (en) | 2024-06-07 |
Family
ID=68492632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910904517.6A Active CN110454439B (en) | 2019-09-24 | 2019-09-24 | Volute casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110454439B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101111683A (en) * | 2004-12-03 | 2008-01-23 | 霍尼韦尔有限公司 | Multi-stage compressor and housing therefor |
| CN101929359A (en) * | 2009-03-11 | 2010-12-29 | 通用汽车环球科技运作公司 | Turbine cylinder with asymmetric split-inlet |
| GB201020131D0 (en) * | 2010-11-29 | 2011-01-12 | Corac Group Plc | Impeller |
| CN102808785A (en) * | 2012-07-19 | 2012-12-05 | 无锡杰尔压缩机有限公司 | Secondary high-speed centrifugal compressor |
| CN202597263U (en) * | 2012-04-16 | 2012-12-12 | 杭州杭氧透平机械有限公司 | Large-flow single-shaft constant-temperature air-compressor spiral casing structure |
| CN203516203U (en) * | 2013-10-29 | 2014-04-02 | 中联重科股份有限公司 | Centrifugal fan volute, centrifugal fan and sweeping machine |
| CN204253443U (en) * | 2014-10-15 | 2015-04-08 | 长沙中粮机械有限公司 | For afflux spiral case and the centrifugal blower of centrifugal blower |
| CN109869222A (en) * | 2019-04-03 | 2019-06-11 | 大连依勒斯涡轮增压技术有限公司 | A kind of pressure charging system and its centrifugal compressor |
| CN211039151U (en) * | 2019-09-24 | 2020-07-17 | 重庆通用工业(集团)有限责任公司 | Volute casing |
-
2019
- 2019-09-24 CN CN201910904517.6A patent/CN110454439B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101111683A (en) * | 2004-12-03 | 2008-01-23 | 霍尼韦尔有限公司 | Multi-stage compressor and housing therefor |
| CN101929359A (en) * | 2009-03-11 | 2010-12-29 | 通用汽车环球科技运作公司 | Turbine cylinder with asymmetric split-inlet |
| GB201020131D0 (en) * | 2010-11-29 | 2011-01-12 | Corac Group Plc | Impeller |
| CN202597263U (en) * | 2012-04-16 | 2012-12-12 | 杭州杭氧透平机械有限公司 | Large-flow single-shaft constant-temperature air-compressor spiral casing structure |
| CN102808785A (en) * | 2012-07-19 | 2012-12-05 | 无锡杰尔压缩机有限公司 | Secondary high-speed centrifugal compressor |
| CN203516203U (en) * | 2013-10-29 | 2014-04-02 | 中联重科股份有限公司 | Centrifugal fan volute, centrifugal fan and sweeping machine |
| CN204253443U (en) * | 2014-10-15 | 2015-04-08 | 长沙中粮机械有限公司 | For afflux spiral case and the centrifugal blower of centrifugal blower |
| CN109869222A (en) * | 2019-04-03 | 2019-06-11 | 大连依勒斯涡轮增压技术有限公司 | A kind of pressure charging system and its centrifugal compressor |
| CN211039151U (en) * | 2019-09-24 | 2020-07-17 | 重庆通用工业(集团)有限责任公司 | Volute casing |
Non-Patent Citations (1)
| Title |
|---|
| 马峰等: "离心压缩机圆截面外蜗壳型线改进的数值研究", 《流体机械》, no. 9, 30 September 2018 (2018-09-30), pages 26 - 31 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110454439B (en) | 2024-06-07 |
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