CN1262737C - Screw expansion power machine - Google Patents
Screw expansion power machine Download PDFInfo
- Publication number
- CN1262737C CN1262737C CN 03123341 CN03123341A CN1262737C CN 1262737 C CN1262737 C CN 1262737C CN 03123341 CN03123341 CN 03123341 CN 03123341 A CN03123341 A CN 03123341A CN 1262737 C CN1262737 C CN 1262737C
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- China
- Prior art keywords
- graphite
- housing
- sleeve
- fixed
- helical rotor
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- 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.)
- Expired - Lifetime
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Mechanical Sealing (AREA)
Abstract
The present invention relates to a bolt expansion power machine which is composed of a negative spiral rotor and a positive spiral rotor which are mutually engaged, a housing, a bearing, an air inlet channel, an air exhausting channel, and two pairs of floating type bidirectional mechanical seal devices which are arranged on the steps at both ends of a spiral rotor shaft and between a shell body and the inner wall. A graphite static ring is arranged on the shaft surface and is in the contact connection with a graphite dynamic ring, the other end of the dynamic ring is arranged in a transmission sleeve, and the end surface is adjacently connected with a spring in the transmission sleeve which is fixed on a sealing shaft sleeve which is fixed to the step of the spiral rotor. A graphite dynamic ring and a dynamic ring seat are arranged on the external surface of the sealing shaft sleeve, the dynamic ring seat is fixed to the transmission sleeve by a transmission pin, and a static ring is also arranged on the external surface of the sealing shaft sleeve and is in the contact connection with the graphite dynamic ring.
Description
Technical field:
The present invention relates to a kind of screw expansion motor, is the power engine that is used to reclaim and utilize industrial exhaust heat, and it belongs to utilization and contains the power plant of hot fluid for power source.
Background technique:
The available dynamic machine, very high as steam turbine to parameter (pressure and temperature) requirement of steam, and require very tight to the quality (content of sulphur content and impurity) of steam, and it only is applicable to that superheated vapor or less efficiently utilize saturated vapour, when thermal source is hot water or hydrothermal solution, can only pass through complicated pretreatment, the step-down dilatation goes out a small amount of saturated vapour and could utilize, and maybe can only utilize hot water and can not utilize steam or carbonated drink two-phase.Because its seal arrangement is to adopt simple and easy seal arrangement, in the medium of high temperature and high pressure, cause water and oily mutual leakage easily, make the lost of life of screw power machine.
Summary of the invention:
The objective of the invention is: a kind of screw expansion motor is provided, and it is not high to steam parameter and quality requirements, is not only applicable to superheated vapor and saturated vapour, and can directly utilize hot water or carbonated drink two-phase to produce power expeditiously; It has floating type two-way mechanical seal device simultaneously, make power engine smooth running under low vibration and low noise operating mode, and in the medium of High Temperature High Pressure, can not produce profit and leak mutually, can be applicable to and keep out operating mode (operating conditions) to have the purpose of long-life again thereby reach.
Technological scheme of the present invention is: screw expansion motor is provided with two intermeshing yin, yang helical rotors, and they pass through the Bearing Installation at two ends in housing; Two ends at housing are provided with front and rear cover, are provided with intake duct and air inlet road junction on the top of housing, and lead to the yin, yang helical rotor; Below helical rotor, be provided with air outlet flue; Two pairs of floating type two-way mechanical seal device respectively are housed between the axial plane of housing and yin, yang helical rotor, and it is located between the step place and inner walls at helical rotor axle two ends; One graphite stationary ring is housed on larger-diameter axial plane is connected with a rotating ring contact, the other end of rotating ring is located in the drive sleeve, the spring adjacency in its end face and the drive sleeve; Drive sleeve is fixed on the sealing axle sleeve, and the latter is fixed on the step place of helical rotor axle by threaded connector; Be provided with a graphite rotating ring and a rotating seat thereof on the outer surface of sealing axle sleeve, this rotating seat is fixed on the drive sleeve by driving pin; On the radially step of sealing axle sleeve, be provided with 12 uniform holes, secondary spring is housed in it, the baffle plate location is arranged in the front of secondary spring; Also being provided with a stationary ring on the outer surface of sealing axle sleeve is connected with the contact of graphite rotating ring.
The invention has the advantages that:
1, screw expansion motor body energy-saving and cost-reducing, highly effective as low-grade steam power machine.Be not only applicable to superheated vapor and saturated vapour, and can directly utilize hot water or carbonated drink two-phase high efficiency to produce power or generating.
2, because not high to the parameter and the quality requirements of steam, can be fit to the steam or the hydrothermal solution of various states, so it be specially adapted in, small power plant, substitute motor-operated feed water pump and blower fan can be saved a large amount of electricity consumptions by its; The used heat liquid and the waste hot gas that discharge for enterprise find an available approach, bring considerable recovery benefit.
3, owing to adopted specially designed floating type two-way mechanical seal, do cooling and lubricated with water, make power engine under the situation of high temperature and high pressure medium, oil and cooling water do not leak mutually, and be efficient sealed, reduced bending deflection, prolonged service life of a machine.
4, increasingly automated, startup-shutdown is easy, and operation need not post, and dismounting and replacing component are easy.
Description of drawings:
Fig. 1 is a structural representation of the present invention
Fig. 2 is the A-A sectional view among Fig. 1
Fig. 3 is the enlarged view of floating type two-way mechanical seal device among Fig. 1
Embodiment:
As illustrated in fig. 1 and 2: screw expansion motor comprises a male screw rotor 1 and a female screw rotor 2, and they respectively are installed on front case 4, middle casing 5 and the rear case 6 by pair of bearings 3; Male screw rotor 1 is dextrorotation, and its right axle head stretches out outside the front cover 7 that is located at front case 4, is power take-off.Female screw rotor 2 is left-handed, and (be blocked on Fig. 1 and also stretch out outside the front cover 7, which is provided with speed measurement device, the outside of positive and negative helical rotor 1 and 2 left axle head is provided with rear end cover 8 to its right axle head, and its periphery is fixed on the rear case 6.The top of front case 4 is provided with intake duct 9 and air inlet road junction 10, and air inlet road junction 10 and positive and negative helical rotor 1 contact with 2 end face.Below helical rotor, be provided with air outlet flue 11.Front and back housing 4 and 6 and the axial plane of positive and negative helical rotor 1 and 2 between a pair of floating type two-way mechanical seal device 12 respectively is housed.
The workflow of screw expansion motor is: the hot water with uniform temperature and pressure, steam or the steam two-phase fluid air inlet road junction 10 in air flue 9 enters front case 4, enter again in the teeth groove of male rotor 1, the cavity volume of steam or hydrothermal solution increases gradually, steam or hydrothermal solution step-down cooling are expanded and are done work, and promote rotor 1 and 2 and rotate.Finishing the steam or the hydrothermal solution of merit is discharged by air outlet flue 11.Power can drive equipment such as feed water pump, blower fan or generator by the output terminal output of male rotor 1.
As shown in Figure 3: floating type two-way mechanical seal device 12 of the present invention is located between the step place and forward and backward housing 4 and 6 inwalls at helical rotor two ends, one graphite stationary ring 13 is housed on larger-diameter axial plane, it contacts with rotating ring 14 and links to each other, the other end of rotating ring 14 is located in the drive sleeve 15, spring 16 adjacency in its end face and the drive sleeve 15; Drive sleeve 15 is fixed on the sealing axle sleeve 17, and sealing axle sleeve 17 usefulness threaded connectors are fixed on the step place of helical rotor axle; Be provided with a graphite rotating ring 18 and rotating seat 19 thereof on the outer surface of sealing axle sleeve 17, this rotating seat 19 is fixed on the drive sleeve 15 by driving pin 20; On the radially step of sealing axle sleeve 17, be provided with 12 uniform holes, secondary spring 21 is housed in it, the baffle plate location is arranged in the front of secondary spring 21; Also being provided with a stationary ring 22 on the outer surface of sealing axle sleeve 17 is connected with 18 contacts of graphite rotating ring.This seal arrangement can make high temperature, the high-pressure medium of power engine with water body cooling and lubricated, and oil and cooling water do not leak mutually, reaches efficient sealed.
Claims (1)
1, a kind of screw expansion motor is provided with two intermeshing yin, yang helical rotors, and they pass through the Bearing Installation at two ends in housing; Two ends at housing are provided with front and rear cover, are provided with intake duct and air inlet road junction on the top of housing, and lead to the yin, yang helical rotor; Below helical rotor, be provided with air outlet flue; Two pairs of mechanical seal device respectively are housed between the axial plane of housing and yin, yang helical rotor, it is characterized in that:
Described mechanical seal device (12) is a kind of floating type two-way mechanical seal device, it is located between the step place and housing (4,6) inwall at helical rotor two ends, one graphite stationary ring (13) is housed on larger-diameter axial plane to be contacted continuous with rotating ring (14), the other end of rotating ring (14) is located in the drive sleeve (15), spring (16) adjacency in its end face and the drive sleeve (15); Drive sleeve (15) is fixed on the sealing axle sleeve (17), and the latter is fixed on the step place of helical rotor axle by threaded connector; Be provided with a graphite rotating ring (18) and rotating seat (19) thereof on the outer surface of sealing axle sleeve (17), this rotating seat (19) is fixed on the drive sleeve (15) by driving pin (20); On the radially step of sealing axle sleeve (17), be provided with 12 uniform holes, 12 secondary springs (21) are housed in it, the baffle plate location is arranged in the front of secondary spring (21); Also being provided with a stationary ring (22) on the outer surface of sealing axle sleeve (17) is connected with graphite rotating ring (18) contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03123341 CN1262737C (en) | 2003-04-25 | 2003-04-25 | Screw expansion power machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03123341 CN1262737C (en) | 2003-04-25 | 2003-04-25 | Screw expansion power machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1540139A CN1540139A (en) | 2004-10-27 |
| CN1262737C true CN1262737C (en) | 2006-07-05 |
Family
ID=34321274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03123341 Expired - Lifetime CN1262737C (en) | 2003-04-25 | 2003-04-25 | Screw expansion power machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1262737C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864992B (en) * | 2010-06-18 | 2012-09-19 | 江西华电电力有限责任公司 | Mechanical sealing structure of screw rod expansion motive power machine |
| CN101956571B (en) * | 2010-07-09 | 2012-09-19 | 江西华电电力有限责任公司 | Containerization type mechanical sealing structure of screw expansion power machine |
| CN102587991A (en) * | 2011-01-06 | 2012-07-18 | 胡达 | Coalbed methane heat energy conversion system |
| CN103727237B (en) * | 2013-12-19 | 2016-03-30 | 马鞍山市荣亿密封材料有限责任公司 | A kind of sealing device for rotary shaft |
| CN105627007B (en) * | 2016-03-30 | 2018-01-16 | 中航光电科技股份有限公司 | A kind of rotary connector and its graphite-seal ring |
| CN106121943B (en) * | 2016-07-25 | 2018-10-19 | 衢州学院 | A kind of screw expansion unit |
-
2003
- 2003-04-25 CN CN 03123341 patent/CN1262737C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1540139A (en) | 2004-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Screw expansion power machine Effective date of registration: 20120718 Granted publication date: 20060705 Pledgee: Zhongyuan Guoxin credit Company limited by guarantee Pledgor: JIANGXI HUADIAN ELECTRICAL POWER Co.,Ltd. Registration number: 2012990000383 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060705 |