CN207420881U - A kind of self-priming ventilating centrifugal pump - Google Patents
A kind of self-priming ventilating centrifugal pump Download PDFInfo
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- CN207420881U CN207420881U CN201721168200.3U CN201721168200U CN207420881U CN 207420881 U CN207420881 U CN 207420881U CN 201721168200 U CN201721168200 U CN 201721168200U CN 207420881 U CN207420881 U CN 207420881U
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- pump
- impeller
- discharge chamber
- gas
- vacuum
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Abstract
The utility model discloses a kind of self-priming ventilating centrifugal pump, including：The pump housing, impeller, rear pump cover, pump shaft, vacuum impeller, discharge chamber, rubber ball valve, gas-detecting device, suspension, bearing, preoral loop, rear choma and bottom valve.Balance hole is machined on impeller, there are one the air entry of crescent shape, discharge chamber is interior to be equipped with vacuum impeller for processing on rear pump cover, discharge chamber rear is opened up there are one crescent shape exhaust outlet, vacuum impeller is connected with pump shaft, and gas-detecting device is installed on suspension, is connected with the exhaust outlet of discharge chamber.It realizes air-breathing and exhaust process as working media equipped with suitable water in discharge chamber using water ring vacuum pump principle, achievees the purpose that from sucking and discharge gas.The utility model have the characteristics that it is compact-sized, operate steadily, operate it is simple, and available for extracting the gas that conveys in inflammable, explosive fluid.
Description
Technical field
The utility model designs a kind of centrifugal pump, suitable for field of fluid, refer in particular to self-priming and degassing function from
Heart pump structure.
Background technology
Pump is trandfer fluid or makes the machinery of fluid pressurized, it sends the mechanical energy of prime mover or other external energies to
Liquid increases liquid energy, and wherein most is vane pump.In the occasion that farmland and pump often start, often requirement pumps tool
There is self-suction function.Common self priming pump belongs to centrifugal pump, and rotation makes current in impeller conduit to volute to impeller at a high speed after startup,
At this moment entrance forms vacuum, makes to open into water non-return flap, and the air in suction line enters in pump, and outer through the arrival of impeller conduit
Edge.The way is although easy to operate and has many advantages, such as stronger suction capacity, but gas liquid mixture enters after impeller channel,
The operation for making pump is extremely unstable, is not readily used for extracting inflammable, explosive gas.In long-distance transportation through pipeline system or chemical industry stream
Often have bubble spilling when journey field conveys volatile fluid, in fluid, need to discharge in time, in engineering often at easily aggregation gas into
Row is evacuated to be solved.The way is inconvenient, and gas is not easy to exclude totally.Therefore, existing pump class self-priming exhaust technique is still
The needs of a large amount of engineering reality cannot be met.
Through retrieval, the utility model intends a kind of not disclosed report of self suction row air pump structure proposed.
The content of the invention
The purpose of this utility model is that a kind of self-priming ventilating centrifugal pump is proposed, to solve the self-priming of centrifugal pump startup stage
Or the problem of pipeline includes gas in operational process.
In order to solve the above technical problems, the specific technical solution that the utility model uses is as follows：
A kind of self-priming ventilating centrifugal pump, including：The pump housing (1), impeller (2), rear pump cover (4), mechanical seal (6), pump shaft
(7), vacuum impeller (8), discharge chamber (9), rubber ball valve (11), gas-detecting device (12), suspension (13), bearing (14), preceding
Choma (15), rear choma (16), bottom valve (17)；It is characterized in that：Impeller (2) is located at the internal one end with pump shaft (7) of the pump housing (1)
It connects, balance hole (3) is carried on impeller (2)；Discharge chamber (9) is located at centrifugal pump impeller (2) rear, is connected with rear pump cover (4)；Row
It is opened up on air cavity (9) there are one exhaust outlet (10), rubber ball valve (11) is mounted on exhaust outlet (10)；It is equipped in discharge chamber (9)
Vacuum impeller (8), vacuum impeller (8) are connected with pump shaft (7)；It is intermediate with vacuum impeller (8) that mechanical seal (6) is located at impeller (2)
And it is sleeved on pump shaft (7)；Rear pump cover (4) is located at discharge chamber (9) rear, is connected with the pump housing (1), and rear pump cover is machined with one on (4)
A air entry (5), suspension (13) are connected with rear pump cover (4), are equipped in suspension (13) equipped with bearing (14), suspension (13) top
Gas-detecting device (12), gas-detecting device (12) are connected with the exhaust outlet (10) of discharge chamber (9)；Preoral loop (15) is located at pump
Between body (1) and impeller (2), pump body is stuck in；Choma (16) is located between rear pump cover (4) and impeller (2) afterwards, is pumped after being stuck in
It is internal to cover (4)；Bottom valve (17) is located at below the pump housing.
The balance hole (3) is circular through hole, is distributed on impeller.
The center line of discharge chamber (9) cavity is higher than pump shaft (7) center line.
The impeller (2) and vacuum impeller (8) are connected with pump shaft (7) by flat key, and two flat keys are on pump shaft (7)
Axial line line in 180 ° it is symmetrical, the blade of vacuum impeller (8) is preferably antecurvature centrifugal cylinder blade.
The air entry (5) with exhaust outlet (10) is crescent shape and symmetrical into 180 ° on pump spindle center line.
The utility model applies also for the mode of multiple impeller serials, that is, the form of multistage pump is used.
The course of work of the utility model is：Gas into centrifugal pump passes through balance hole and rear pump cover at impeller inlet
On air entry enter discharge chamber, equipped with vacuum impeller in discharge chamber, rotated using water ring pump venting principleand in vacuum impeller
It completes air-breathing in the process and exhaust process discharges gas, discharged gas by the exhaust outlet on discharge chamber, exhaust outlet is equipped with rubber
Ball valve, the exhaust demand being suitable under different operating modes and pump without gas operating mode under be sealed.Gas compression is isothermal
, therefore inflammable, explosive gas can be extracted.Gas-detecting device can monitor the gas information of discharge and carry out anti-in time
Feedback, can tackle operation exception phenomenon in time.
The beneficial effects of the utility model are：The pump of the utility model is an integral structure with vacuum impeller, so that
Must be compact-sized, floor space is small, can effectively carry out gas-liquid separation, discharges the gas in trandfer fluid.The utility model gas
It is not required to by centrifugal pump impeller runner, so as to not impacted to design, operation of former centrifugal pump etc..The utility model is vented
It vacuumizes with reference to water ring vacuum pump principle, gas does not enter centrifugal pump impeller runner so that entire exhaust process is steady, and can be
Row information feedback of going forward side by side is exhausted in automatic decision during trandfer fluid gassiness, can continuously run exhaust.The utility model has body
The advantages that product is small, reliable, steady and at low cost.
Description of the drawings
Fig. 1：The utility model self suction row air pump structure figure
Fig. 2：The utility model self-priming exhaust pump discharge chamber schematic diagram
Fig. 3：The utility model vacuum impeller and suction, exhaust port shape
Fig. 4：The utility model self-priming exhaust pump fundamental diagram
In figure：The 1- pump housings, 2- impellers, 3- balance holes, 4- rear pump covers, 5- air entries, 6- mechanical seals, 7- pump shafts, 8- are true
Empty impeller, 9- discharge chambers, 10- exhaust outlets, 11- rubbers ball valve, 12- gas-detecting devices, 13- suspensions, 14- bearings, 15- prosopyles
Choma, 17- bottom valves after ring, 16-.
Specific embodiment
Below in conjunction with the accompanying drawings, the technical solution of the utility model is described in further details.
With reference to Fig. 1, a kind of self suction row air pump structure of the utility model, the pump housing 1, impeller 2, rear pump cover 4, mechanical seal 6,
Pump shaft 7, vacuum impeller 8, discharge chamber 9, rubber ball valve 11, gas-detecting device 12, suspension 13, bearing 14, preoral loop 15, deutostoma
Ring 16, bottom valve 17.Wherein：Impeller 2 is located at 1 inside of the pump housing and is connected with one end of pump shaft 7, and balance hole 3 is carried on impeller 2；Exhaust
Chamber 9 is located at 2 rear of centrifugal pump impeller, is connected with rear pump cover 4；It is opened up on discharge chamber 9 there are one exhaust outlet 10, rubber ball valve 11 is pacified
On exhaust outlet 10；It is connected in discharge chamber 9 equipped with 8 vacuum impeller 8 of vacuum impeller with pump shaft 7；Mechanical seal 6 is located at impeller 2
With among vacuum impeller 8 and being sleeved on pump shaft 7；Rear pump cover 4 is located at 9 rear of discharge chamber, is connected with the pump housing 1, is processed on rear pump cover 4
There are one air entry 5, suspension 13 is connected with rear pump cover 4, and gas detection is equipped with equipped with bearing 14,13 top of suspension in suspension 13
Device 12, gas-detecting device 12 are connected with the exhaust outlet 10 of discharge chamber 9；Preoral loop 15 is between the pump housing 1 and impeller 2, card
In pump body；Choma 16 is stuck between rear pump cover 4 and impeller 2 inside rear pump cover 4 afterwards；Bottom valve 17 is located at below the pump housing.
The balance hole 3 is circular through hole, is distributed on impeller.
The impeller 2 and vacuum impeller 8 are connected with pump shaft 7 by flat key.
It is bolted between the pump housing 1, rear pump cover 4, discharge chamber 9, gas-detecting device 12 and suspension 13.
With reference to Fig. 2, the center line of 9 cavity of discharge chamber is higher than 7 center line of pump shaft.
With reference to Fig. 2, Fig. 3, crescent shape is made with exhaust outlet 10 in air entry 5 and is symmetrically put into 180 ° on pump spindle center line
It puts.
With reference to Fig. 3, the blade of the vacuum impeller 8 is preferably antecurvature centrifugal cylinder blade.
With reference to Fig. 3, rubber ball valve 11 is installed on the exhaust outlet 10 of the discharge chamber 9, is needed to adapt to different operating mode exhausts
It asks.
With reference to Fig. 4, when pumping operating, vacuum impeller is rotated with pump shaft, and water ring is formed in discharge chamber, true using water ring
The operation principle of sky pump carries out air-breathing and exhaust.During practical operation, the aperture of control rubber ball valve 11, you can realize different operating modes
Bleeding.The utility model structure through gathering, simply, it is easy to operate, have it is small, reliable, steady and at low cost
The advantages that.
Claims (5)
1. a kind of self-priming ventilating centrifugal pump, including：The pump housing (1), impeller (2), rear pump cover (4), mechanical seal (6), pump shaft (7),
Vacuum impeller (8), discharge chamber (9), rubber ball valve (11), gas-detecting device (12), suspension (13), bearing (14), preoral loop
(15), rear choma (16), bottom valve (17)；It is characterized in that：Impeller (2) is located at the internal one end with pump shaft (7) of the pump housing (1) and connects
It connects, balance hole (3) is carried on impeller (2)；Discharge chamber (9) is located at centrifugal pump impeller (2) rear, is connected with rear pump cover (4)；Exhaust
It is opened up on chamber (9) there are one exhaust outlet (10), rubber ball valve (11) is mounted on exhaust outlet (10)；Equipped with true in discharge chamber (9)
Empty impeller (8), vacuum impeller (8) are connected with pump shaft (7)；Mechanical seal (6) be located among impeller (2) and vacuum impeller (8) and
It is sleeved on pump shaft (7)；Rear pump cover (4) is located at discharge chamber (9) rear, is connected with the pump housing (1), on rear pump cover (4) there are one processing
Air entry (5), suspension (13) are connected with rear pump cover (4), and gas is equipped with equipped with bearing (14), suspension (13) top in suspension (13)
Body detection device (12), gas-detecting device (12) are connected with the exhaust outlet (10) of discharge chamber (9)；Preoral loop (15) is located at the pump housing
(1) between impeller (2), it is stuck in pump body；Choma (16) is located between rear pump cover (4) and impeller (2) afterwards, is stuck in rear pump cover
(4) it is internal；Bottom valve (17) is located at below the pump housing.
2. a kind of self-priming ventilating centrifugal pump according to claim 1, it is characterised in that：The balance hole (3) is circular logical
Hole is distributed on impeller.
3. a kind of self-priming ventilating centrifugal pump according to claim 1, it is characterised in that：In discharge chamber (9) cavity
Heart line is higher than pump shaft (7) center line.
4. a kind of self-priming ventilating centrifugal pump according to claim 1, it is characterised in that：The impeller (2) and vacuum impeller
(8) it is connected with pump shaft (7) by flat key, two flat keys are in 180 ° of symmetrical, vacuum on the axial line line of pump shaft (7)
The blade of impeller (8) is preferably antecurvature centrifugal cylinder blade.
5. a kind of self-priming ventilating centrifugal pump according to claim 1, it is characterised in that：The air entry (5) and exhaust outlet
(10) it is crescent shape and symmetrical into 180 ° on pump spindle center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721168200.3U CN207420881U (en) | 2017-09-13 | 2017-09-13 | A kind of self-priming ventilating centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721168200.3U CN207420881U (en) | 2017-09-13 | 2017-09-13 | A kind of self-priming ventilating centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207420881U true CN207420881U (en) | 2018-05-29 |
Family
ID=62316271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721168200.3U Active CN207420881U (en) | 2017-09-13 | 2017-09-13 | A kind of self-priming ventilating centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207420881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387423A (en) * | 2017-09-13 | 2017-11-24 | 江苏大学镇江流体工程装备技术研究院 | A kind of self-priming ventilating centrifugal pump |
| CN109026737A (en) * | 2018-08-02 | 2018-12-18 | 广州市能动机电设备有限公司 | A kind of centrifugal water pump |
-
2017
- 2017-09-13 CN CN201721168200.3U patent/CN207420881U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387423A (en) * | 2017-09-13 | 2017-11-24 | 江苏大学镇江流体工程装备技术研究院 | A kind of self-priming ventilating centrifugal pump |
| CN109026737A (en) * | 2018-08-02 | 2018-12-18 | 广州市能动机电设备有限公司 | A kind of centrifugal water pump |
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