CN210371193U - Suction-assisting vacuum pump system for chemical pump - Google Patents
Suction-assisting vacuum pump system for chemical pump Download PDFInfo
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- CN210371193U CN210371193U CN201921339680.4U CN201921339680U CN210371193U CN 210371193 U CN210371193 U CN 210371193U CN 201921339680 U CN201921339680 U CN 201921339680U CN 210371193 U CN210371193 U CN 210371193U
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Abstract
The utility model relates to a chemical pump technical field specifically discloses a chemical pump is with helping and inhale vacuum pump system, including helping inhaling the vacuum pump, a housing, liquid storage pot and vacuum valve, help inhaling vacuum pump and liquid storage pot and all establishing in the casing, help inhaling the vacuum pump and pass through the liquid storage pot and be connected with the chemical pump, the vacuum valve is established between liquid storage pot and chemical pump, help inhaling the vacuum pump and include the motor and establish the one-level vacuum pump and the second grade vacuum pump at last motor both ends respectively, the air inlet and the liquid storage pot of one-level vacuum pump are connected, the gas vent and the air inlet of second grade vacuum pump of one-level vacuum pump are connected, the gas. The utility model discloses can make chemical pump consumption reduction and from inhaling the reinforcing of ability, simple structure is compact, need not liquid before the water pump starts.
Description
Technical Field
The utility model relates to a chemical pump technical field especially relates to a chemical pump is with helping suction vacuum pump system.
Background
The self-priming pump is a common pump at present, has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long service life, strong self-priming capability and the like, and is widely applied to the fields of oil refineries, petrochemical plants, water works, paper mills, cement plants, steel mills, thermal power plants, steel mills, urban sewage treatment plants and the like.
The traditional self-priming pump has the working principle that before the water pump is started, water is filled in a pump shell or water is stored in the pump shell, after the water pump is started, an impeller rotates at a high speed to enable water in an impeller channel to flow to a volute, at the moment, a vacuum is formed at an inlet, a water inlet check valve is opened, and air in a suction pipe enters the pump and reaches the outer edge through the impeller channel. The pipeline of the self-priming pump does not need to be provided with a bottom valve, and only quantitative priming liquid needs to be stored in the pump body before the self-priming pump works.
However, when the self-priming pump in the prior art is used for a long time, water flow in a gap between the impeller and the rear cover cannot circulate, so that local temperature is increased, and the impeller is easy to deform. Meanwhile, the efficiency of the self-priming pump in the current market still cannot meet the needs of users, the water ring vacuum pump also runs when the self-priming pump runs stably, and the water ring vacuum pump also consumes partial power, so that the power of the whole machine is larger. In addition, the self priming pump need pour into a large amount of liquid in advance when using for the start-up of self priming pump is comparatively inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a chemical industry pump is with helping suction vacuum pump system to make chemical industry pump consumption reduce and from the reinforcing of absorption ability, start and do not need liquid.
In order to solve the technical problem, the utility model provides a chemical industry pump is with helping and inhaling vacuum pump system, including helping inhaling vacuum pump, casing, liquid storage pot and vacuum valve, help inhaling vacuum pump and liquid storage pot and all establishing in the casing, help inhaling the vacuum pump and pass through the liquid storage pot is connected with the chemical industry pump, the vacuum valve is established between liquid storage pot and the chemical industry pump, help inhaling the vacuum pump and include the motor and establish respectively last the one-level vacuum pump and the second grade vacuum pump at motor both ends, the air inlet of one-level vacuum pump with the liquid storage pot is connected, the gas vent of one-level vacuum pump with the air inlet of second grade vacuum pump is connected, the gas vent of second grade vacuum pump is connected with the external world.
Preferably, the primary vacuum pump comprises a primary volute and a primary impeller arranged in the primary volute, the primary volute is provided with an air inlet and an air outlet, and the primary impeller is connected with an output shaft of the motor.
Preferably, the secondary vacuum pump comprises a secondary volute and a secondary impeller arranged in the secondary volute, the secondary volute is provided with an air inlet and an air outlet, the air inlet of the secondary volute is connected with the air outlet of the primary volute, and the secondary impeller is connected with the other output shaft of the motor.
Preferably, the primary impeller is connected with an output shaft of the motor in an end face friction mode through a primary pull rod.
Preferably, the secondary impeller is connected with the other output end of the motor in an end face friction mode through a secondary pull rod.
Preferably, the output shaft of the motor is provided with a labyrinth seal structure.
The utility model discloses a chemical industry pump is with helping to inhale vacuum pump system can make chemical industry pump consumption reduction and from inhaling the reinforcing of ability, and simple structure is compact, highly can reach more than 8m from inhaling, need not liquid before the water pump starts.
Drawings
Fig. 1 is a whole structure diagram of a suction-assisted vacuum pump system for a chemical pump according to an embodiment of the present invention;
fig. 2 is a structural diagram of an auxiliary suction vacuum pump system for a chemical pump according to an embodiment of the present invention;
fig. 3 is a structural diagram of a primary vacuum pump of the suction-assisted vacuum pump system for a chemical pump according to an embodiment of the present invention;
fig. 4 is a structural diagram of a secondary vacuum pump of the suction-assisted vacuum pump system for a chemical pump according to an embodiment of the present invention.
In the figure, 1: a suction-assisting vacuum pump; 2: a housing; 3: a liquid storage tank; 4: a vacuum valve; 5: a chemical pump; 6: a secondary vacuum pump; 7: a motor; 8: a primary vacuum pump; 9: a second-stage volute; 10: a secondary impeller; 11: a secondary pull rod; 12: secondary labyrinth sealing; 13: a first-stage volute; 14: the primary impeller 15: a primary pull rod; 16: primary labyrinth seal.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, the suction-assisted vacuum system for a chemical pump of the present embodiment includes: help and inhale vacuum pump 1, casing 2, liquid storage pot 3 and vacuum valve 4, help and inhale vacuum pump 1 and liquid storage pot 3 and all establish in casing 2, help and inhale vacuum pump 1 and be connected with chemical pump 5 through liquid storage pot 3, vacuum valve 4 is established between liquid storage pot 3 and chemical pump 5, help and inhale vacuum pump 1 and include motor 7 and establish one-level vacuum pump 8 and the secondary vacuum pump 6 at last motor 7 both ends respectively, one-level vacuum pump 8's air inlet is connected with liquid storage pot 3, one-level vacuum pump 8's gas vent is connected with secondary vacuum pump 6's air inlet, secondary vacuum pump 6's gas vent is connected with casing 2's external world. The entry that helps suction vacuum pump 1 passes through the pipeline and is connected with liquid storage pot 3, liquid storage pot 3 passes through the pipeline and links to each other with chemical pump 5's export, install vacuum valve 4 in the pipeline, the vacuum that helps suction vacuum pump 1 to make passes through the pipeline conduction to chemical pump 5's pump chamber, air helps suction vacuum pump 1 discharge through the pipeline flow direction in the chemical pump 5 pump chamber, low level medium gets into the pump chamber along chemical pump 5 entry section under the atmospheric pressure effect this moment, flow in the liquid storage pot 3, vacuum valve 4 closes, shut down and help suction vacuum pump 1, chemical pump 5 starts the operation, the medium is delivered to water pump exit section under the chemical pump 5 effect.
The primary vacuum pump 8 comprises a primary volute 13 and a primary impeller 14 arranged in the primary volute 13, the primary volute 13 is provided with an air inlet and an air outlet, and the primary impeller 14 is connected with an output shaft of the motor 7. The secondary vacuum pump 6 comprises a secondary volute 9 and a secondary impeller 10 arranged in the secondary volute 9, the secondary volute 9 is provided with an air inlet and an air outlet, the air inlet of the secondary volute 9 is connected with the air outlet of a primary volute 13, the two stages of impellers are connected in series up and down through a pipeline, and the secondary impeller 10 is connected with the other output shaft of the motor 7. The primary impeller 13 is connected in an end-face friction manner to an output shaft of the motor 7 via a primary pull rod 15. The secondary impeller 9 is connected with the other output end of the motor 7 in an end face friction mode through a secondary pull rod 11. The first-stage pull rod 15 and the second-stage pull rod 11 provide pre-tightening force for directly connecting the first-stage impeller 13, the second-stage impeller 9 and the motor 7, and a labyrinth seal structure is arranged on an output shaft of the motor 7 to reduce gas leakage.
The utility model discloses a chemical industry pump is with helping to inhale vacuum pump system can make chemical industry pump consumption reduction and from inhaling the enhancement of ability, simple structure is compact, and vacuum can reach more than 80kpa, highly can reach more than 8m from inhaling, need not liquid before the water pump starts.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (6)
1. An absorption-assisting vacuum pump system for a chemical pump is characterized by comprising an absorption-assisting vacuum pump (1), a shell (2), a liquid storage tank (3) and a vacuum valve (4), the suction-assisting vacuum pump (1) and the liquid storage tank (3) are both arranged in the shell (2), the suction-assisting vacuum pump (1) is connected with a chemical pump (5) through the liquid storage tank (3), the vacuum valve (4) is arranged between the liquid storage tank (3) and the chemical pump (5), the suction-assisting vacuum pump (1) comprises a motor (7), a primary vacuum pump (8) and a secondary vacuum pump (6) which are respectively arranged at two ends of the motor (7), the air inlet of the primary vacuum pump (8) is connected with the liquid storage tank (3), the exhaust port of the primary vacuum pump (8) is connected with the air inlet of the secondary vacuum pump (6), and an exhaust port of the secondary vacuum pump (6) is connected with the outside of the shell (2).
2. The booster vacuum pump system for the chemical pump according to claim 1, wherein the primary vacuum pump (8) comprises a primary volute (13) and a primary impeller (14) disposed in the primary volute (13), the primary volute (13) is provided with an air inlet and an air outlet, and the primary impeller (14) is connected with an output shaft of the motor (7).
3. The booster vacuum pump system for the chemical pump according to claim 2, wherein the secondary vacuum pump (6) comprises a secondary volute (9) and a secondary impeller (10) arranged in the secondary volute (9), the secondary volute (9) is provided with an air inlet and an air outlet, the air inlet of the secondary volute (9) is connected with the air outlet of the primary volute (13), and the secondary impeller (10) is connected with another output shaft of the motor (7).
4. The booster vacuum pump system for a chemical pump according to claim 2, wherein the primary impeller (14) is connected to an output shaft of the motor (7) in an end-face friction manner via a primary pull rod (15).
5. The booster vacuum pump system for the chemical pump according to claim 3, wherein the secondary impeller (10) is connected with the other output end of the motor (7) in an end-face friction manner through a secondary pull rod (11).
6. The suck-assisted vacuum pump system for a chemical pump according to claim 1, wherein the output shaft of the motor (7) is provided with a labyrinth seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921339680.4U CN210371193U (en) | 2019-08-19 | 2019-08-19 | Suction-assisting vacuum pump system for chemical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921339680.4U CN210371193U (en) | 2019-08-19 | 2019-08-19 | Suction-assisting vacuum pump system for chemical pump |
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| Publication Number | Publication Date |
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| CN210371193U true CN210371193U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921339680.4U Active CN210371193U (en) | 2019-08-19 | 2019-08-19 | Suction-assisting vacuum pump system for chemical pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345079A (en) * | 2019-08-19 | 2019-10-18 | 大连罗斯泵业有限公司 | Chemical pump is with helping suction vacuum pump system |
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2019
- 2019-08-19 CN CN201921339680.4U patent/CN210371193U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345079A (en) * | 2019-08-19 | 2019-10-18 | 大连罗斯泵业有限公司 | Chemical pump is with helping suction vacuum pump system |
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