CN219826931U - High-efficient double screw rod fluid expander - Google Patents
High-efficient double screw rod fluid expander Download PDFInfo
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- CN219826931U CN219826931U CN202320541225.2U CN202320541225U CN219826931U CN 219826931 U CN219826931 U CN 219826931U CN 202320541225 U CN202320541225 U CN 202320541225U CN 219826931 U CN219826931 U CN 219826931U
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- 239000012530 fluid Substances 0.000 title claims abstract description 29
- 230000008676 import Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 239000002918 waste heat Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 8
- 230000026058 directional locomotion Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The utility model discloses a high-efficiency double-screw fluid expansion machine, and aims to provide a high-efficiency double-screw fluid expansion device. The novel spiral shell comprises a pair of intermeshing screw rotors and a shell, wherein the shell consists of a shell main body and two end covers, an 8-shaped barrel-shaped cavity is formed in the shell main body, an inlet and an outlet are formed in the cavity, the two screw rotors are respectively arranged in the cavity through the two end covers, gap sealing is formed between the two screw rotors and between the screw rotors and the shell, two diversion concave surfaces capable of guiding fluid to move in the corresponding screw rotor rotating direction are arranged at the inlet, diversion edges formed by intersecting the two diversion concave surfaces point to the inlet, and two guiding concave surfaces capable of guiding the rebounded fluid to move in the corresponding screw rotor rotating direction are also arranged at the inlet. The utility model can be used for recycling secondary energy sources such as waste heat, throttling loss and the like.
Description
Technical Field
The utility model relates to a power machine, in particular to a high-efficiency double-screw fluid expansion device.
Background
At present, a large amount of waste heat, throttling loss and other secondary energy sources exist for large-energy-consumption households in the industries of electric power, chemical industry, petroleum, metallurgy, mines, light industry, textile industry and the like, and the energy sources are fully recycled, so that the energy source consumption can be obviously reduced, and the carbon emission can be reduced. As a new type of secondary energy recovery device, twin screw expanders are increasingly being used. The double-screw expander mainly comprises a pair of intermeshing screw rotors and a casing, gaps between the double-screw rotors and between the screw rotors and the casing are sealed to form a working cavity with continuously variable volume, and gaseous working medium enters the working cavity to perform adiabatic expansion so as to drive the screw rotors to rotate for doing work, thereby realizing energy conversion. The defects are that: after entering the working cavity, the gaseous working medium directly impacts the screw rotor, and the direction of directional movement of the gaseous working medium is opposite to the direction of movement of the edge of the double screw rotor, so that a large amount of energy is consumed, and the efficiency is reduced.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a high-efficiency double-screw fluid expander, which can change the direction of directional movement of fluid, so that the movement direction of the fluid is consistent with the movement direction of the edge of a screw rotor when the fluid impacts the screw rotor, thereby reducing energy loss and improving the efficiency of the fluid expander.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a high-efficient twin-screw fluid expander, includes a pair of intermeshing's screw rod rotor and shell, the shell comprises a shell main part and two end covers, the inside 8 font tubulose cavity that is equipped with of shell main part, the cavity is equipped with import and export, two screw rod rotors pass through two end covers set up respectively in the cavity, between two screw rod rotors to and be clearance seal between screw rod rotor and the shell import department be provided with two and lead the reposition of redundant personnel concave surface that corresponds screw rod rotor direction of rotation motion with fluid, two reposition of redundant personnel concave surface crossing constitution shunt sword directional import department still be equipped with two and lead the import concave surface that corresponds screw rod rotor direction of rotation motion with the fluid that bounces again.
The utility model can also: after the fluid is guided by the diversion concave surface or the guiding concave surface, the included angle between the directional movement direction and the movement direction of the impact point of the screw rotor is between plus and minus ninety degrees. Two mutually meshed synchronous gears are arranged between the two screw rotors, and the two synchronous gears are respectively and coaxially fixed with the corresponding screw rotors. And a converging guide device is arranged at the outlet of the shell. The converging guiding device is provided with two converging concave surfaces and two guiding-out concave surfaces, two converging edges formed by intersecting the converging concave surfaces point to the outlet, guiding-out edges formed by intersecting the converging concave surfaces and the guiding-out concave surfaces point to opposite directions of rotation of the corresponding screw rotors, and the two guiding-out concave surfaces are coaxial with the corresponding screw rotors respectively. The screw rotors can be screw rotors at two ends, screw rotors at three ends or screw rotors at multiple heads.
Compared with the prior art, the utility model has the beneficial effects that: the method has the advantages that the power moment of the screw rotor is increased, the resistance moment of the screw rotor is reduced, and therefore efficiency is improved; the axle pressure is reduced, reduces the oil leak, increase of service life.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is an isometric view of a high efficiency twin screw fluid expander;
FIG. 2 is a top view of a high efficiency twin screw fluid expander;
FIG. 3 is a cross-sectional view of A-A of a high efficiency twin screw fluid expander;
FIG. 4 is an isometric view of a pair of intermeshing screw rotors;
fig. 5 is a top view of a high efficiency twin screw fluid expander provided with a synchronizing gear.
In the figure: the driving screw rotor 3 of the shell main body 2 drives the rotating shaft 4 of the end cover 1, the driven screw rotor 5 of the driven rotating shaft 6 of the diversion concave surface 7 is led into the concave surface 8 diversion guiding device 9, the diversion blade 10 is led into the blade 11, the secondary leading-in concave surface 12 is led out from the concave surface 14 and the converging concave surface 15 is converged into the guiding device 16, and the synchronous gear 17 is arranged.
Description of the embodiments
Case one:
in fig. 1-4, a high-efficiency double-screw fluid expansion machine comprises a driving screw rotor 3, a driving rotating shaft 4, a driven screw rotor 5, a driven rotating shaft 6 and a shell, wherein the shell is composed of a shell main body 2 and two end covers 1, an 8-shaped barrel-shaped cavity is formed in the shell main body 2, an inlet and an outlet are formed in the cavity, the driving screw rotor 3 and the driven screw rotor 5 are ten screw rotors, the driving screw rotor 3, the driving rotating shaft 4, the driven screw rotor 5 and the driven rotating shaft 6 are respectively arranged in the cavity through the two end covers 1, a gap is sealed between the driving screw rotor 3 and the driven screw rotor 5, and a diversion guiding device 9 is arranged at the inlet of the shell. The diversion guiding device 9 is provided with two diversion concave surfaces 7 and two guiding concave surfaces 8, a diversion blade 10 formed by intersecting the two diversion concave surfaces 7 points to an inlet, the two diversion concave surfaces 7 guide separated fluid to the rotating direction of the corresponding screw rotor respectively for movement, and the two guiding concave surfaces 8 guide rebound fluid to the rotating direction of the corresponding screw rotor respectively for movement again. A converging guide 16 is provided at the outlet of the housing. The converging guiding device 16 is provided with two converging concave surfaces 15 and two guiding-out concave surfaces 14, converging edges formed by intersecting the converging concave surfaces 15 point to outlets, guiding-out edges formed by intersecting the converging concave surfaces and the guiding-out concave surfaces point to opposite directions of rotation of corresponding screw rotors, and the two guiding-out concave surfaces 14 are coaxial with the corresponding driving screw rotor 3 and driven screw rotor 5 respectively.
Case two:
as shown in fig. 5, compared with the first embodiment, two synchromesh gears 17 are disposed between the driving screw rotor 3 and the driven screw rotor 5, and the two synchromesh gears 17 are coaxially fixed to the driving screw rotor 3 and the driven screw rotor 5, respectively.
The utility model and its embodiments have been described above without limitation, and the actual construction is not limited thereto. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution can be designed without departing from the inventive concept and without the inventive concept, and the utility model shall fall within the protection scope of the present utility model.
Claims (4)
1. The utility model provides a high-efficient twin-screw fluid expander, includes a pair of intermeshing's screw rod rotor and shell, the shell comprises a shell main part and two end covers, the inside 8 font tubulose cavity that is equipped with of shell main part, the cavity is equipped with import and export, two screw rod rotors pass through two end covers set up respectively in the cavity, between two screw rod rotors to and be clearance seal between screw rod rotor and the shell, characterized by: the inlet is provided with two diversion concave surfaces which can guide fluid to move in the corresponding screw rotor rotating direction, a diversion blade formed by intersecting the two diversion concave surfaces points to the inlet, and the inlet is also provided with two guide concave surfaces which can guide the rebounded fluid to move in the corresponding screw rotor rotating direction.
2. The efficient twin-screw fluid expander of claim 1, wherein: two mutually meshed synchronous gears are arranged between the two screw rotors, and the two synchronous gears are respectively and coaxially fixed with the corresponding screw rotors.
3. A high efficiency twin screw fluid expander as defined in claim 1 or claim 2 and wherein: and a converging guide device is arranged at the outlet of the shell.
4. A high efficiency twin screw fluid expander as defined in claim 3 and wherein: the converging guiding device is provided with two converging concave surfaces and two guiding-out concave surfaces, two converging edges formed by intersecting the converging concave surfaces point to the outlet, guiding-out edges formed by intersecting the converging concave surfaces and the guiding-out concave surfaces point to opposite directions of rotation of the corresponding screw rotors, and the two guiding-out concave surfaces are coaxial with the corresponding screw rotors respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320541225.2U CN219826931U (en) | 2023-03-20 | 2023-03-20 | High-efficient double screw rod fluid expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320541225.2U CN219826931U (en) | 2023-03-20 | 2023-03-20 | High-efficient double screw rod fluid expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219826931U true CN219826931U (en) | 2023-10-13 |
Family
ID=88245066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320541225.2U Active CN219826931U (en) | 2023-03-20 | 2023-03-20 | High-efficient double screw rod fluid expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219826931U (en) |
-
2023
- 2023-03-20 CN CN202320541225.2U patent/CN219826931U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |