CN202031835U - Sealing water feeding system of wet type roots vacuum pump - Google Patents
Sealing water feeding system of wet type roots vacuum pump Download PDFInfo
- Publication number
- CN202031835U CN202031835U CN2010205766438U CN201020576643U CN202031835U CN 202031835 U CN202031835 U CN 202031835U CN 2010205766438 U CN2010205766438 U CN 2010205766438U CN 201020576643 U CN201020576643 U CN 201020576643U CN 202031835 U CN202031835 U CN 202031835U
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- water
- wet type
- water inlet
- type roots
- inlet
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Abstract
A sealing water feeding system of a wet type roots vacuum pump comprises a water feeding pipe, a water tank, a water inlet valve and a water inlet cutoff device. The water inlet valve is arranged in the water tank and controls water level of the water tank, the water inlet cutoff device closes the water feeding pipe during shutdown. One end of the water feeding pipe is inserted in the bottom of the water tank, the other end of the water feeding pipe is arranged in a pump cavity of the wet type roots vacuum pump to be utilized as a water suction opening, and the water inlet cutoff device is mounted on the water feeding pipe. Due to the technical scheme, the sealing water feeding system of the wet type roots vacuum pump sucks water from water barrels and the water tank via the water feeding pipe according to self vacuum degree, the quantity of sucked water is determined by the vacuum pump according to the vacuum degree, the problem of too much or too little water can be avoided, manual adjustment is also avoided, and accordingly labor and materials are saved.
Description
Technical field
The utility model relates to vaccum pump unit, is specifically related to a kind of wet type Roots pump and seals water system waterborne.
Background technique
Wet type Roots's machine vacuum pump need inject sealing water at suction port, and sealing water forms water membrane on rotor, with minimizing rotor and gap between rotor, thus the efficient of raising vacuum pump.Wet type Roots's machine vacuum pump of the prior art seals water system waterborne and presses water for band, directly insert the vacuum pump intakeport by a water inlet, flow switch is installed on water supply pipeline, the flow of sealing water is injected in control, sealing water has pressure, directly injects intakeport by hydraulic pressure.This sealing water injection mode, flow need artificially to regulate fully by flow switch control, also need to readjust when the sealing water pressure changes.The injection amount of sealing water influences the operation of vacuum pump, if water filling is many, can produce water impact, causes surge and current fluctuation, also can cause the damage of rotor when serious, if water filling is few, degree of vacuum is taken out to get on, and does not have sealing water effect again.
Summary of the invention
For solving the problems of the technologies described above, we have proposed a kind of automatic loading water and the water yield needs to suck according to vacuum pump self fully, the few wet type Roots pump of the many water of water can not occur and seal water system waterborne.
For achieving the above object, the technical solution of the utility model is as follows: a kind of wet type Roots pump seals water system waterborne, comprises water inlet, water tank, is located in the described water tank and controls the inlet valve of cistern water level and close the water inlet shut-off means of described water inlet when stopping simultaneously; Described water inlet one end is assigned in described water tank bottom, and the other end is arranged in the pump chamber of described wet type Roots pump as the water sucking mouth, and described water inlet shut-off means is installed on the described water inlet.
Preferably, described inlet valve comprises valve and ball float.
Preferably, described inlet valve comprises liquid-level switch and is located at the interior pressure transducer of liquid-level switch.
The pneumatic valve of closing simultaneously when preferably, the water inlet shut-off means of described water inlet is the equipment parking.
The mortor operated valve of outage interlocking close when preferably, described water inlet water inlet shut-off means is the equipment parking.
Preferably, there is at least two meters drop the level height of described water inlet highest point and water sucking mouth.
Pass through technique scheme, wet type Roots pump of the present utility model seals water system dependence waterborne self degree of vacuum and is absorbed water from water tank by water inlet, sucking the water yield is decided according to degree of vacuum by vacuum pump, the few situation of the many water of water can not appear, needing to avoid artificial the adjusting, thereby also saved manpower and materials.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 seals the schematic representation of water system waterborne for the utility model embodiment 1 disclosed a kind of wet type Roots's machine vacuum pump.
Fig. 2 seals the schematic representation of water system waterborne for the utility model embodiment 2 disclosed a kind of wet type Roots's machine vacuum pumps.
Numeral and the represented corresponding part title of letter among the figure:
1. water inlet 11. pneumatic valves 12. mortor operated valves 2. inlet valves 21. ball floats 22. liquid-level switches 23. valves 24. pressure transducers 3. water tanks 4. intake pipes
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who is obtained under the creative work prerequisite.
The utility model provides a kind of wet type Roots pump to seal water system waterborne, as shown in Figure 1, comprises water inlet 1, inlet valve 2, water tank 3 and intake pipe 4; Described water inlet 1 is provided with pneumatic valve 11, and described inlet valve 2 comprises ball float 21 and valve 23; One end of described water inlet 1 is arranged in the pump chamber of described wet type Roots pump as the water sucking mouth, the other end is assigned in the bottom of described water tank 3 through behind the pneumatic valve 11, water inlet 1 is several fonts, and the drop that the water sucking mouth in highest point level height and the described pump chamber is at least two meters, the water level of described water tank 3 is by described inlet valve 2 controls.Pneumatic valve 11 cuts out simultaneously automatically when equipment stops, and prevents that siphonage from taking place.
Its working principle is: after wet type Roots machine vacuum pump starts, its pump chamber is interior by the vacuum pumping shape, produce negative pressure in the pump chamber, because an end of the water inlet 1 that is connected is arranged in the pump chamber as the water sucking mouth, the other end is in the bottom of described water tank 3, and there is at least two meters drop the highest point level height of water inlet 1 and described water sucking mouth.Sealing water in the water tank 3 flows to the Roots pump pump chamber under the barometric pressure effect, when degree of vacuum is hanged down, little in the pump chamber with water tank 3 interior pressure reduction, just flow to less sealing water, when degree of vacuum is high, big in the pump chamber with water tank 3 interior pressure reduction, just flow to more sealing water, the water yield of suction seal water is decided according to degree of vacuum by the wet type Roots pump.When water level is reduced to the position that sets in the water tank 3, ball float 21 declines drive associated components opens valve 23, by the 3 beginning water fillings of described intake pipe 4 feed tanks, when the water level that injects reaches the certain altitude of setting, ball float 21 rises and drives associated components again and valve 23 is closed stop water filling, so just formed a dynamic balance.Thereby guaranteed to have in the water tank 3 water to seal water waterborne for described wet type Roots pump.In addition, owing on described water inlet 1 pneumatic valve 11 is installed, pneumatic valve 11 cuts out simultaneously when equipment stops, thereby has cut off the circulation that seals water in the water inlet 1, prevents to enter too much water in the described pump chamber that siphonage causes.
Embodiment 2,
A kind of Roots pump seals water system waterborne, as shown in Figure 2, all the other are identical with embodiment 1, difference is, inlet valve 2 is made up of the pressure transducer 24 that liquid-level switch 22 and liquid-level switch 22 are provided with, when sealing water drawdown is to the low level setting value in the water tank 3, pressure transducer 24 detects this hydraulic pressure value, control hydraulic switch 22 is opened, by 3 water fillings of intake pipe 4 feed tanks, when the water level that injects rose to high-order setting value, pressure transducer 24 detected this hydraulic pressure value, control hydraulic switch 22 cuts out, and intake pipe 4 stops feed tank 3 water fillings.In addition, pneumatic valve 11 is replaced by mortor operated valve 12, and when equipment stopped, mortor operated valve 12 outage interlocking closes had cut off the circulation of sealing water in the water inlet 3, prevent that siphonage from taking place.
Adopt the beneficial effect of the technical program to be: wet type Roots pump of the present utility model seals water system dependence waterborne self degree of vacuum and is absorbed water from water tank 3 by water inlet 1, sucking the water yield is decided according to degree of vacuum by vacuum pump, the few situation of the many water of water can not appear, needing to avoid artificial the adjusting, thereby also saved manpower and materials.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. a wet type Roots pump seals water system waterborne, it is characterized in that, comprises water inlet, water tank, is located in the described water tank and controls the inlet valve of cistern water level and close the water inlet shut-off means of described water inlet when stopping simultaneously; Described water inlet one end is assigned in described water tank bottom, and the other end is arranged in the pump chamber of described wet type Roots pump as the water sucking mouth, and described water inlet shut-off means is installed on the described water inlet.
2. wet type Roots pump as claimed in claim 1 seals water system waterborne, it is characterized in that, described inlet valve comprises valve and ball float.
3. wet type Roots pump as claimed in claim 1 seals water system waterborne, it is characterized in that, described inlet valve comprises liquid-level switch and is located at the interior pressure transducer of liquid-level switch.
4. wet type Roots pump as claimed in claim 1 seals water system waterborne, it is characterized in that the pneumatic valve of closing simultaneously when the water inlet shut-off means of described water inlet is the equipment parking.
5. wet type Roots pump as claimed in claim 1 seals water system waterborne, it is characterized in that, the mortor operated valve of outage interlocking close when described water inlet water inlet shut-off means is the equipment parking.
6. seal water system waterborne as the arbitrary described wet type Roots pump of claim 1 to 5, it is characterized in that there is at least two meters drop the level height of described water inlet highest point and water sucking mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205766438U CN202031835U (en) | 2010-10-26 | 2010-10-26 | Sealing water feeding system of wet type roots vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205766438U CN202031835U (en) | 2010-10-26 | 2010-10-26 | Sealing water feeding system of wet type roots vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031835U true CN202031835U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205766438U Expired - Fee Related CN202031835U (en) | 2010-10-26 | 2010-10-26 | Sealing water feeding system of wet type roots vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202031835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939661A (en) * | 2014-04-23 | 2014-07-23 | 淮南矿业(集团)有限责任公司 | Water supplement bucket for water ring vacuum pump and water ring vacuum pump system |
| CN109312691A (en) * | 2016-08-29 | 2019-02-05 | 宝马股份公司 | Equipment for spraying water in the car and the method for running such equipment |
-
2010
- 2010-10-26 CN CN2010205766438U patent/CN202031835U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939661A (en) * | 2014-04-23 | 2014-07-23 | 淮南矿业(集团)有限责任公司 | Water supplement bucket for water ring vacuum pump and water ring vacuum pump system |
| CN109312691A (en) * | 2016-08-29 | 2019-02-05 | 宝马股份公司 | Equipment for spraying water in the car and the method for running such equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20131026 |