CN205401141U - Roots vacuum unit - Google Patents
Roots vacuum unit Download PDFInfo
- Publication number
- CN205401141U CN205401141U CN201620171449.9U CN201620171449U CN205401141U CN 205401141 U CN205401141 U CN 205401141U CN 201620171449 U CN201620171449 U CN 201620171449U CN 205401141 U CN205401141 U CN 205401141U
- Authority
- CN
- China
- Prior art keywords
- cooling
- air outlet
- air
- duct
- muffling
- 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.)
- Active
Links
Landscapes
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a roots vacuum unit, including several pump body the air outlet both ends outer wall of pump body on be provided with the external screw thread respectively air outlet both ends outer wall on be provided with the ring flange rather than threaded connection respectively the outside cover of air outlet the cooling air pipe is equipped with, cooling tuber pipe both ends respectively fixed connection 2 the ring flange on cooling tuber pipe both ends be provided with cooling air delivery outlet and cooling air input port respectively cooling air pipe inner wall on be provided with the fin that is the spiral and arranges, the internal diameter of fin be greater than the external diameter of air outlet cooling tuber pipe both ends inner wall on be provided with the ladder groove respectively the ladder inslot overlap respectively and be equipped with sealed rubber ring. The utility model discloses an adoption sets up the cooling tuber pipe on the air outlet, adopt the mode of input cooling air, realizes lowering the temperature to the operating temperature of pump body, helps improving work efficiency, increase of service life.
Description
Technical field
This utility model relates to a kind of Roots vacuum system.
Background technology
Roots vaccum pump use procedure easily occurs catabiosis, causes that its service life is limited, and, when after its longtime running, operating temperature is too high, it is possible to can be affected it and run well.
Summary of the invention
The purpose of this utility model is in that to provide a kind of Roots vacuum system, prior art Problems existing can be improved, by adopting, cooling duct is set on air outlet, adopt the mode of input cooling air, realize the operating temperature of pump body is lowered the temperature, it is favorably improved work efficiency, increases the service life.
This utility model is achieved through the following technical solutions:
A kind of Roots vacuum system, including several pump bodies, the air outlet two ends outer wall of described pump body is respectively arranged with external screw thread, described air outlet two ends outer wall is respectively arranged with the ring flange threadeded with it, in described air outlet outer cover equipped with cooling duct, described cooling duct two ends are respectively fixedly connected with on 2 described ring flanges, cooling air delivery outlet and cooling air input port it is respectively arranged with at described cooling duct two ends, described cooling duct inwall is provided with the fin helically arranged, the internal diameter of described fin is more than the external diameter of described air outlet, described cooling duct two ends inwall is respectively arranged with step trough, it is respectively installed with O-ring seal in described step trough.
Further, for realizing this utility model better, at described air outlet, described pump body one end is provided with muffling air duct, the inwall of described muffling air duct is provided with the acoustical panel arranged in the shape of a spiral along described muffling air duct axis direction, described acoustical panel is provided with air vent.
Further, for realizing this utility model better, the pitch of described acoustical panel is gradually increased to outfan direction by the input of muffling air duct.
Further, for realizing this utility model better, at described air outlet, described pump body one end is provided with output flange, being provided with screwed hole at described muffling air duct on described output flange one end end face, described muffling air duct is bolted to connection on described output flange.
Further, for realizing this utility model better, on described output flange one end end face, it is provided with annular recess at described muffling air duct, in described annular recess, is provided with the annular seal ring of hollow.
This utility model compared with prior art, has the advantages that
(1) this utility model arranges cooling duct by adopting on air outlet, low-temperature and high-speed wind is inputted by air intake vent, low-temperature and high-speed wind and air outlet are exported by air outlet after carrying out heat exchange, can pass through to reduce the temperature of air outlet, play and prevent aging effect, meanwhile, this utility model adopts two flange plate structures to realize the connection to cooling duct, it is possible to convenient installation；
(2) this utility model arranges fin by adopting in cooling duct, low-temperature and high-speed wind can be made to extend the flowing of the fin hand of spiral, low-temperature and high-speed wind was extended in the time of cooling air Bottomhole pressure, it is thus possible to make sub-cooled wind more be made full use of, can have the longer time and air outlet carries out heat exchange, it is to avoid the wasting of resources.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
Fig. 1 is this utility model overall structure schematic diagram.
Wherein: 101. air outlets, 102. ring flanges, 103. cooling ducts, 104. fins, 105. cooling air delivery outlets, 106. cooling air delivery outlet, 107. O-ring seals, 108. muffling air ducts, 109. acoustical panels, 110. air vent, 111. output flanges, 112. annular recess, 113. annular seal rings.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
As shown in Figure 1, a kind of Roots vacuum system, including several pump bodies, the air outlet 101 two ends outer wall of described pump body is respectively arranged with external screw thread, described air outlet two ends outer wall is respectively arranged with the ring flange 102 threadeded with it, in described air outlet outer cover equipped with cooling duct 103, described cooling duct two ends are respectively fixedly connected with on 2 described ring flanges, cooling air delivery outlet 105 and cooling air input port 106 it is respectively arranged with at described cooling duct two ends, described cooling duct inwall is provided with the fin 104 helically arranged, the internal diameter of described fin is more than the external diameter of described air outlet, described cooling duct two ends inwall is respectively arranged with step trough, O-ring seal 107 it is respectively installed with in described step trough.
After closing formation Roots Vacuum Pump Units due to multiple Roots Vacuum Pump Units, when adjacent Roots vaccum pump operating temperature is too high, can mutually produce impact, in the present embodiment, adopt the mode of the separately installed cooling duct of air outlet to each pump body, can make not have between adjacent Roots vaccum pump to influence each other, contribute to extending the service life of integral pump group.
This utility model arranges cooling duct by adopting on air outlet, low-temperature and high-speed wind is inputted by cooling air input port, low-temperature and high-speed wind and air outlet are exported by cooling air delivery outlet after carrying out heat exchange, can pass through to reduce the temperature of air outlet, play and prevent aging effect, meanwhile, this utility model adopts two flange plate structures to realize the connection to cooling duct, it is possible to convenient installation；This utility model arranges fin by adopting in cooling duct, low-temperature and high-speed wind can be made to extend the flowing of the fin hand of spiral, low-temperature and high-speed wind was extended in the time of cooling air Bottomhole pressure, it is thus possible to make sub-cooled wind more be made full use of, can have the longer time and air outlet carries out heat exchange, it is to avoid the wasting of resources.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, after forming Roots vacuum system due to multiple pump bodies, in Roots vaccum pump running, a large amount of noise can be produced, when multiple roots blowers use simultaneously, its noise can be bigger, in the present embodiment, in order to reduce noise, preferably, at described air outlet, described pump body one end is provided with muffling air duct 108, the inwall of described muffling air duct is provided with the acoustical panel 109 arranged in the shape of a spiral along described muffling air duct axis direction, described acoustical panel is provided with air vent 110.In air outlet output procedure, output wind is by the air vent output on acoustical panel so that noise is disperseed by air vent, contributes to reducing noise intensity.
In the present embodiment, in order to improve noise reduction further, it is preferable that the pitch of described acoustical panel is gradually increased to outfan direction by the input of muffling air duct.By making the pitch of acoustical panel be gradually increased so that the transmission range of sound is gradually increased, thus contributing to strengthening noise reduction.
Install in order to convenient, in the present embodiment, preferably, at described air outlet, described pump body one end is provided with output flange 111, being provided with screwed hole at described muffling air duct on described output flange one end end face, described muffling air duct is bolted to connection on described output flange.
In order to improve the sealing effectiveness between muffling air duct and output flange, in the present embodiment, preferably, on described output flange one end end face, it is provided with annular recess 112 at described muffling air duct, in described annular recess, is provided with the annular seal ring 113 of hollow.By adopt hollow change kind of a sealing ring, when making muffling air duct be pressed together on the end face of output flange, annular seal ring produce elastic deformation so that muffling air duct by annular seal ring realize seal.The annular seal ring of hollow has better elasticity, when being installed in annular recess, has better deformation space, more convenient to install.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (5)
1. a Roots vacuum system, including several pump bodies, it is characterized in that: on the air outlet two ends outer wall of described pump body, be respectively arranged with external screw thread, described air outlet two ends outer wall is respectively arranged with the ring flange threadeded with it, in described air outlet outer cover equipped with cooling duct, described cooling duct two ends are respectively fixedly connected with on 2 described ring flanges, cooling air delivery outlet and cooling air input port it is respectively arranged with at described cooling duct two ends, described cooling duct inwall is provided with the fin helically arranged, the internal diameter of described fin is more than the external diameter of described air outlet, described cooling duct two ends inwall is respectively arranged with step trough, it is respectively installed with O-ring seal in described step trough.
2. a kind of Roots vacuum system according to claim 1, it is characterized in that: at described air outlet, described pump body one end is provided with muffling air duct, the inwall of described muffling air duct is provided with the acoustical panel arranged in the shape of a spiral along described muffling air duct axis direction, described acoustical panel is provided with air vent.
3. a kind of Roots vacuum system according to claim 2, it is characterised in that: the pitch of described acoustical panel is gradually increased to outfan direction by the input of muffling air duct.
4. a kind of Roots vacuum system according to claim 2, it is characterized in that: at described air outlet, described pump body one end is provided with output flange, being provided with screwed hole at described muffling air duct on described output flange one end end face, described muffling air duct is bolted to connection on described output flange.
5. a kind of Roots vacuum system according to claim 4, it is characterised in that: on described output flange one end end face, it is provided with annular recess at described muffling air duct, in described annular recess, is provided with the annular seal ring of hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171449.9U CN205401141U (en) | 2016-03-07 | 2016-03-07 | Roots vacuum unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171449.9U CN205401141U (en) | 2016-03-07 | 2016-03-07 | Roots vacuum unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401141U true CN205401141U (en) | 2016-07-27 |
Family
ID=56442494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620171449.9U Active CN205401141U (en) | 2016-03-07 | 2016-03-07 | Roots vacuum unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309701A (en) * | 2021-07-09 | 2021-08-27 | 广德玉龙泵业有限公司 | Roots vacuum pump |
-
2016
- 2016-03-07 CN CN201620171449.9U patent/CN205401141U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309701A (en) * | 2021-07-09 | 2021-08-27 | 广德玉龙泵业有限公司 | Roots vacuum pump |
| CN113309701B (en) * | 2021-07-09 | 2023-12-26 | 广德玉龙泵业有限公司 | Roots vacuum pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105822550A (en) | Electronic vacuum pump for automobile braking assistance | |
| CN205401141U (en) | Roots vacuum unit | |
| CN206530817U (en) | A kind of gas pipeline muffling device | |
| CN103899875A (en) | Composite muffler used in pipeline | |
| CN202792421U (en) | Air exhaust pipe for mobile air conditioner | |
| CN205065156U (en) | Telescopic joint | |
| CN104632625B (en) | Dual-level enthalpy adding compressor and air-conditioner | |
| CN202875225U (en) | Dust collection device | |
| CN219913392U (en) | Fresh air system supercharging air duct | |
| CN203022862U (en) | Ring-type fan protective hood for automobile engine | |
| CN105626589A (en) | Multilayer composite silencer | |
| WO2020034254A1 (en) | Self-ventilating motor and motor case thereof | |
| CN105304075A (en) | Combination type small-hole impeller compound silencer | |
| CN109209870A (en) | Fixed scroll component and screw compressor | |
| CN205001697U (en) | Connecting device for water pipe | |
| CN103047194B (en) | A kind of low noise blower fan | |
| CN208348736U (en) | A kind of corrugated connecting tube | |
| CN205377212U (en) | Communication tube | |
| CN207278562U (en) | A kind of compressor of air conditioner line outlet sealed insulation pad | |
| CN210891720U (en) | Spiral guide plate of slag cooler | |
| CN204869603U (en) | Novel special sizing cover of thin wall tubular product | |
| CN205956627U (en) | Air inlet pipe | |
| CN207485744U (en) | A kind of wind turbine streamline channel muffler | |
| CN219454226U (en) | Air outlet structure with noise reduction function | |
| CN216924835U (en) | Current limiter for isolating and connecting buried pipes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |