CN2764974Y - Breath type vacuum pumping device of centrifugal pump - Google Patents
Breath type vacuum pumping device of centrifugal pump Download PDFInfo
- Publication number
- CN2764974Y CN2764974Y CN 200520007592 CN200520007592U CN2764974Y CN 2764974 Y CN2764974 Y CN 2764974Y CN 200520007592 CN200520007592 CN 200520007592 CN 200520007592 U CN200520007592 U CN 200520007592U CN 2764974 Y CN2764974 Y CN 2764974Y
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- Prior art keywords
- float
- cylinder
- centrifugal pump
- vacuum system
- sensor
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- Expired - Lifetime
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Abstract
The utility model relates to a breath type vacuum pumping device for a centrifugal pump, which belongs to the technical field of an additional vacuum pumping device for a centrifugal pump and is composed of a diaphragm type actuation device and a breathing device. The utility model is characterized in that the getter device is composed of a cylinder, a float, a sensor and an electric control valve, wherein the float is arranged in the cylinder and moves up and down along the cylinder. The sensor is arranged on the cylinder and is connected with the electric control valve by a circuit. The cylinder of the getter device is a two-layered cylinder while the inner cylinder is an air suction cylinder and the outer cylinder a heat-insulated cylinder. Therefore, the utility model has the advantage that the breath type vacuum pumping device realizes completely sealing abruption without dielectric leakage, prevents dielectric with high viscosity or easy crystallization from adhering to the inside of the cylinder and ensures the reliability and the efficiency of the breathing device.
Description
Technical field
The utility model belongs to the additional suction vacuum system technical field of centrifugal pump.
Background technique
The self priming centrifugal pump of prior art, be to combine by centrifugal pump and suction vacuum system to constitute, it is that the diaphragm actuated is inhaled vacuum system that present centrifugal pump often uses the suction vacuum system, this device is to establish an eccentric bushing on centrifugal pump shaft, a diaphragm actuated is set on eccentric bushing inhales vacuum system, this device is by an enclosing housing and the diaphragm type that the enclosing housing inner chamber is divided into two cavitys is actuated body constitute, diaphragm type actuates body and eccentric bushing connects with connecting rod and crank, it is reciprocating along its normal direction line that diaphragm is actuated body under the effect of eccentric bushing and crank, make the side that the closed shell inner chamber is equipped with connecting rod form an open to atmosphere exhaust chamber and the induction chamber of actuating the body opposite side, to actuate the body induction chamber by sucking pipe communicates with the suction means that has float valve that is arranged on centrifugal pump intake pipe top, can take out in the pump water inlet pipe and air in the impeller cavity so that inhale vacuum system, low level water sucted and be full of intake pipe and impeller cavity, and enter the suction vacuum system because of suction function by the anti-sealing of float valve.The deficiencies in the prior art are: 1, float valve mainly relies on buoyancy to overcome the gravity sealing medium, can not realize sealing fully, easily cause the leakage of medium to the diaphragm type actuation gear, and when medium is the medium of high viscosity or easily crystallization, float valve does not just have due effect, especially when starting whole device once more, float valve will lose its effect; 2, ball-cock assembly is bulky, and practicability is not high; 3, the bearing shell that uses on the connecting rod adopts the multilayer nylon material, and the characteristic of nylon also is not suitable for this, and composite bearing is poor to neutrality.
Summary of the invention
The purpose of this utility model provides a kind of respiration type and inhales vacuum system, realize that centrifugal pump is when fed sheet of a media, i.e. pump priming in advance, can also guarantee severe corrosive or have graininess, high viscosity, the easy safe transport of the medium of crystallization, can not produce medium and leak, overcome the deficiencies in the prior art to inhaling vacuum system.For achieving the above object, the technical solution of the utility model is that centrifugal pump is inhaled vacuum system with respiration type, by the diaphragm type actuation gear that connects by connecting rod and pump shaft and form with the suction means that the diaphragm type actuation gear is communicated with by sucking pipe, the diaphragm type actuation gear is connected on the pump housing, suction means is connected pump water inlet pipe top, be communicated with intake pipe, its structure is that described suction means is by cylindrical shell, float, sensor and electric control valve constitute, float places in the cylindrical shell and can move up and down along cylindrical shell, sensor is located at cylindrical shell top, electric control valve is installed on the sucking pipe, and sensor is connected by circuit with electric control valve.
Centrifugal pump described in the utility model is inhaled vacuum system with respiration type, and its structure is that the cylindrical shell of described suction means is a double-layer barrel, and inner core is communicated with sucking pipe and pump water inlet pipe, is aspiration column, and urceolus is provided with intake-outlet, is heat-preservation cylinder.
Centrifugal pump described in the utility model is inhaled vacuum system with respiration type, it is characterized in that described float is the float-ball type float, and described sensor is a ball float contact type liquid-level switch.
Centrifugal pump described in the utility model is inhaled vacuum system with respiration type, and its structure is that the spring bearing of connecting rod of the connecting rod of described junctional membrane chip actuation gear is a sintered metal powder bearing.
Advantage of the present utility model is:
1, adopts the composite structure of electromechanical integration, will inhale vacuum system and sensor and electrically-controlled valve and be used in combination, make diaphragm type actuation gear and suction means can realize that sealing cuts off, and can not produce dielectric leakage.
2, adopt the suction means of double-layer barrel, can make inner core keep the temperature that needs, prevent that high viscosity or easy crystal medium from boning in cylindrical shell, guaranteed the effectively reliable of suction means by logical thermal insulation medium in the outer layer barrel.
3, the connecting rod place uses sintered metal powder bearing to support, because sintered metal powder bearing (oil-impregnated bearing) inside is porous spongy, behind dipping in deep fat, utilizes the capillarity that interpenetrates, and lubricant oil is stored in bearing inside.When axle moves, lubricant oil will be secreted out automatically and be lubricated, and after the axle stop motion, oil is sucked back bearing inside by capillary tube again, high lubricating effect, and bearing has only a center line, and is good to neutrality.
4, cancelled float valve in the suction means, the volume of suction means is reduced greatly, more suitable.
Description of drawings
The utility model has accompanying drawing two width of cloth, wherein:
Accompanying drawing 1 is the utility model embodiment's a structural representation
The structural representation of the suction means of the suction vacuum system of prior art during accompanying drawing 2
In the accompanying drawing 1, suction means 2, ball float 3, urceolus 4, ball lever 5, inner core 6, contact 7, liquid-level switch 8, sucking pipe 9, electric control valve 10, diaphragm type actuation gear 11,12 respiratory chamber B chambeies 13, respiratory chamber A chamber, connecting rod 14, sintered metal powder bearing 15, centrifugal pump 16, centrifugal pump intake pipe
Embodiment
Shown in the accompanying drawing 1 is that the diaphragm actuated with float-ball type float and ball float contact type liquid-level switch is inhaled vacuum system.The suction means 1 that has ball float contact type liquid-level switch in centrifugal pump intake pipe 16 top arrangement, diaphragm type actuation gear 10 is connected on the centrifugal pump body 15, be connected by sucking pipe 8 between the induction chamber 11 of diaphragm type actuation gear and the inner core 5 of suction means, an electric control valve 9 is set on the suction line, is connected by circuit between electric control valve and the liquid-level switch.When working under the drive of diaphragm type actuation gear at pump shaft, the inner core of suction means communicates with the A chamber 11 (suction-chamber is called in A, B chamber again) of diaphragm type actuation gear, and ball float 2 is because gravity is in the bottom of inner core 5.When the pressure in the intake pipe is negative pressure, suct medium in the inner barrel, ball float rises under floating function, ball float 2 contacts with contact 6 when reaching setting height, ball float contact type liquid-level switch is connected output electrical signal driving electric control valve and is closed, cut off the path of medium and respiratory chamber, prevent that medium from entering respiratory chamber because of suction function; This signal also can be used as the control signal when using magnetic clutch.The urceolus of suction means is connected thermal insulation medium, and the inner core temperature that insulation needs can be provided, and prevents that high viscosity or easy crystal medium from boning in inner barrel.Use sintered metal powder bearing to support at the connecting rod place of diaphragm type actuation gear.Before the pump startup, dish moves coupling and pulls clutch mechanism the external gear on connecting rod and the pump shaft is meshed, then primer pump.During the pump shaft rotation, the crank drivening rod is reciprocating, and connecting rod drives the work of diaphragm type actuation gear.After the pump proper functioning, to pull clutch mechanism connecting rod and external gear are separated, connecting rod stops action, and respiratory chamber also quits work at this point.Avoided pump like this from the whole process that starts to shutdown, respiratory chamber is in running order always, thereby can reduce reactive power consumption and noise.Ball float is selected different material for use according to the difference of fed sheet of a media.
Claims (4)
1, a kind of centrifugal pump is inhaled vacuum system with respiration type, form by the diaphragm type actuation gear (10) that connects by connecting rod and pump shaft and by the suction means (1) that sucking pipe (8) is communicated with the diaphragm type actuation gear, the diaphragm type actuation gear is connected on the pump housing (15), suction means (1) is connected pump water inlet pipe top, be communicated with intake pipe, it is characterized in that described suction means is by cylindrical shell (5), float (2), sensor (6,7) and electric control valve (9) constitute, float places in the cylindrical shell and can move up and down along cylindrical shell, sensor is located at cylindrical shell top, electric control valve is installed on the sucking pipe, and sensor is connected by circuit with electric control valve.
2, centrifugal pump according to claim 1 is inhaled vacuum system with respiration type, the cylindrical shell that it is characterized in that described suction means is a double-layer barrel, and inner core (5) is communicated with sucking pipe (8) and pump water inlet pipe (16), is aspiration column, urceolus (3) is provided with intake-outlet, is heat-preservation cylinder.
3, centrifugal pump according to claim 1 and 2 is inhaled vacuum system with respiration type, it is characterized in that described float is float-ball type float (2), and described sensor is ball float contact type liquid-level switch (6,7).
4, centrifugal pump according to claim 1 and 2 is inhaled vacuum system with respiration type, it is characterized in that the spring bearing of connecting rod (13) of the connecting rod of described junctional membrane chip actuation gear is sintered metal powder bearing (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520007592 CN2764974Y (en) | 2005-02-24 | 2005-02-24 | Breath type vacuum pumping device of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520007592 CN2764974Y (en) | 2005-02-24 | 2005-02-24 | Breath type vacuum pumping device of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2764974Y true CN2764974Y (en) | 2006-03-15 |
Family
ID=36167893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520007592 Expired - Lifetime CN2764974Y (en) | 2005-02-24 | 2005-02-24 | Breath type vacuum pumping device of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2764974Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742420A (en) * | 2014-01-24 | 2014-04-23 | 靖江市长江水泵厂 | Intelligent strong self-absorption device |
| CN108612656A (en) * | 2018-06-08 | 2018-10-02 | 安徽阿莫斯泵业有限公司 | A kind of parasitic type auxiliary self-priming vacuum pump |
-
2005
- 2005-02-24 CN CN 200520007592 patent/CN2764974Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742420A (en) * | 2014-01-24 | 2014-04-23 | 靖江市长江水泵厂 | Intelligent strong self-absorption device |
| CN108612656A (en) * | 2018-06-08 | 2018-10-02 | 安徽阿莫斯泵业有限公司 | A kind of parasitic type auxiliary self-priming vacuum pump |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150224 Granted publication date: 20060315 |