CN202194798U - Central vacuum device - Google Patents
Central vacuum device Download PDFInfo
- Publication number
- CN202194798U CN202194798U CN2011200888039U CN201120088803U CN202194798U CN 202194798 U CN202194798 U CN 202194798U CN 2011200888039 U CN2011200888039 U CN 2011200888039U CN 201120088803 U CN201120088803 U CN 201120088803U CN 202194798 U CN202194798 U CN 202194798U
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- vacuum
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- valve
- pump
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- Jet Pumps And Other Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A central vacuum device is composed of a vacuum container, a water discharge container, a water-ring vacuum pump, a plurality of vacuumizing valves, a service water feed system, an air exhausting pipeline system and an electric cabinet. The vacuum container is combined with the water discharge container, the vacuum container is on the upper portion, the water discharge container is on the lower portion, the vacuum container is communicated with the water discharge container on the lower portion through a communicating pipe and a solenoid valve, and enables inside storage water to be connected with the water discharge container through a water discharge pipe and a check valve, the water discharge container is connected with the service water feed system through the check valve, and the vacuum pump is connected with the vacuum container through the air exhausting pipeline system. The plurality of vacuumizing valves are respectively connected with water absorption pipes of a water pump and air exhausting pipes of a pump top. The central vacuum device is applicable to vacuum draw of a plurality of centrifugal pumps and siphons and constant vacuum maintenance, can enable the centrifugal pumps stopping the service to be frequently in a vacuumizing state and started up at any time.
Description
Technical field:
The utility model relates to a kind of water-treating equipment, relates in particular to a kind of central vacuum system, and this device is the supplementary equipment in the pumping station.
Background technique:
The normal centrifugal pump that adopts carries liquid or siphon piping need vacuumize water outlet in engineering of water treatment, when the pump center line exceeds liquid level, all water diversion apparatus need be set, to guarantee the normal startup of water pump.Water diversion apparatus commonly used has bottom valve, water sprayer, diversion tube, Nash hytor etc.
The bottom valve drawing water structure is simple, can keep the diversion performance after starting first, but still need pour water first, and bottom valve should have better seal property, and when being used for water intake pumping station, being prone to is influenced use by obstructions such as weeds, stones because of being not closed completely.In addition, bottom valve is installed under water, the maintenance difficulty, and loss of head is bigger, is only applicable to small-bore water pump, uses in the simple and easy pumping plant on a small scale.
Water sprayer water diversion apparatus compact structure make simply, but efficient is low, needs to supply with a large amount of press waters, and the diversion time is long, is only applicable to the general requirement of bleeding.
The diversion barrel structure is simple, and volume is bigger, and each startup all should manual operation, but water level is low excessively, and is inapplicable when intake pipe is longer, also is to be applicable to small-sized centrifugal pump diversion system.
The vacuum pump water diversion apparatus is directly to use in the vacuum pump pump up water pump housing and the air in the suction sleeve, reaches the purpose of diversion, and vacuum pump water diversion apparatus functional reliability is good, concentrates diversion system applicable to large pumping station, many pumps.The vacuum pump water diversion apparatus is to use a kind of modes best, that use is maximum.It is integrated that but traditional vacuum pump water diversion apparatus does not have, and bad realization is controlled automatically.
Summary of the invention:
The purpose of the utility model provides a kind of central vacuum system; This device is applicable to that several centrifugal pumps and siphonal vacuum draw and constant vacuum keep; Can make centrifugal pump out of service often be in vacuum state, promptly water is filled on the pipe top, can directly start centrifugal pump at any time; Realize the operation automatically of pumping plant one stepization, reach unmanned.
To achieve these goals, the technological scheme of the utility model is: a kind of central vacuum system is characterized in that: be made up of vacuum tank, displacement can, Nash hytor, several vacuum pumping valves, service water supply system, exhaust pipe system and electric control box; Vacuum tank and displacement can are combined; Top is vacuum tank, and the bottom is a displacement can, and vacuum tank is communicated with the lower bank water pot through connecting pipe and solenoid valve; Through sluice pipe and check valve inner water is connected to displacement can; This displacement can is connected with the service water supply system through check valve, and the service water supply system connects to form by regulating cut-off valve, service water flow switch and entering water electromagnetic valve successively, and entering water electromagnetic valve is connected with vacuum pump; Vacuum pump is connected with vacuum tank through the exhaust pipe system, and the exhaust pipe system is connected to form by air inlet check valve and service valve successively; Several vacuum pumping valves are connected with the suction sleeve of water pump and the exhaust tube on pump top respectively.
The manual service valve that is provided with on two position switch, check valve, solenoid valve and the respective line of above-mentioned vacuum pumping valve by set inside is formed; Wherein: the manual service valve that is provided with on check valve, solenoid valve and the respective line connects successively.
High level switch and height vacuum pressure switch are housed on the above-mentioned vacuum tank.
Be provided with the two position switch in the above-mentioned displacement can.
The working principle of the utility model is: vacuum pump moves through the vacuum pressure switch that is installed in the vacuum tank top automatically, makes that degree of vacuum remains on certain scope in the vacuum tank.Central authorities' vacuum system adopts this pressure controling mode can realize that logarithm platform centrifugal pump and several syphon tube carry out vacuum draw and vacuum keeps, and its setting height(from bottom) does not receive the influence of centrifugal pump and syphon tube suction point position height.
The utlity model has following advantage and good effect:
1, is applicable to that several centrifugal pumps and siphonal vacuum draw and constant vacuum keep; Can make centrifugal pump out of service often be in vacuum state, promptly water is filled on the pipe top, can directly start centrifugal pump at any time; Realize the operation automatically of pumping plant one stepization, reach unmanned.
2, adopt full automation control, but both execute-in-places is also remote controlled.
3, compact structure except the drainage interface of the service water interface, vacuum pump and the displacement can that leave the interface that is connected with the pump-line of centrifugal pump, vacuum pump, has a complete system of one's own.Service water can adopt plant area's tap water of certain pressure, and draining is connected to sewerage.When the service water supply system broke down, flow switch sent signal alarm.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Embodiment:
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
A kind of central vacuum system comprises a vacuum tank 1, displacement can 2, two Nash hytors 3 (the using and the reserved), several vacuum pumping valves 4, a cover service water supply system, a cover exhaust pipe system and cover electric control boxs 5.Vacuum tank 1 is combined with displacement can 2, and top is vacuum tank 1, and the bottom is a displacement can 2.The pipe joint 10 of being furnished with high level switch 6 and height vacuum pressure switch 7, the interface 9 that is provided with the interface 8 that is connected the public exhaust tube of centrifugal pump, vacuum pump pumping tube and connection lower bank water pot on the vacuum tank 1.Be provided with two position switch 11, the pipe joint 12 that is connected with top vacuum tank 1 and bottom discharge interface tube 13 in the displacement can 2.The service water supply system comprises an adjusting cut-off valve 14, two service water flow switches 15 and two entering water electromagnetic valves 16.The exhaust pipe system comprises the air inlet check valve 17 and the service valve 18 of every vacuum pump.Vacuum tank 1 is communicated with lower bank water pot 2 through connecting pipe 19 and solenoid valve 20, through sluice pipe 21 and check valve 22 inner water is connected to displacement can 2, then through automatic control of liquid in the displacement can 2, discharges outside this device through check valve 23.
The exhaust tube on the suction sleeve of every water pump and pump top is connected to a vacuum pumping valve 4, and each vacuum pumping valve comprises the manual service valve 27 that is provided with on the two position switch 24 of set inside, check valve 25, solenoid valve 26 and the respective line.
The working procedure of the utility model is following: every centrifugal pump top vent and suction sleeve top pick out an exhaust tube in the pumping plant, are connected to vacuum pumping valve respectively, and are connected to the vacuum tank of this device with public centrifugal pump pump-line.After pumping station initial launch or overhaul end, the solenoid valve of vacuum pumping valve is opened on the suction branch of all access vacuum tanks, starts vacuum pump; Entering water electromagnetic valve on the respective service water lines is opened simultaneously, the air water mixed solution discharging in the vacuum pump chamber, at this moment; Air in water pump and the suction line is drawn out of continuously, and air is extracted out fully in water pump, and water gets into vacuum pumping valve; When reaching the high liquid level of vacuum pumping valve; Liquid-level switch sends to upper-position unit and vacuumizes the completion signal, shows that centrifugal pump is bled to hang water success, is in the standby starting state.Degree of vacuum continues to rise in the vacuum tank, and when the jar internal pressure reached the maximum vacuum of setting, the high vacuum switch sent signal and cuts out vacuum pump automatically.
The gas of locating to bleed when vacuum system, water pump stuffing box, suction piping etc., and the gas that water pump is separated out under negative pressure condition constantly gets into vacuum tank through vacuum pumping valve, degree of vacuum reduces in jar; Degree of vacuum is lower than down in limited time in jar, and this moment, the rough vacuum switch sent signal, and vacuum pump is opened again; Degree of vacuum begins again to increase in jar; On degree of vacuum reaches, send halt instruction in limited time, vacuum pump stops automatically, and degree of vacuum remains at certain limit in the vacuum tank like this; Make every water pump can often be in water-filling state and maintenance, can start any water pump in the pumping station at any time.
After certain centrifugal pump is opened, close the solenoid valve on its vacuum pumping valve, avoid water-aspirator pressure water to get in the vacuum tank, central vacuum system is among the above-mentioned dynamic balance state all the time.
When the initial work of this system, two vacuum pumps will turn round simultaneously, and to reduce suction time, later two vacuum pump one after the others move, and wherein a pump moves as main pump, and another then is a stand by pump.When this device moves next time, stand by pump originally will move as main pump, and original main pump will be as stand by pump.
Claims (4)
1. a central vacuum system is characterized in that: be made up of vacuum tank, displacement can, Nash hytor, several vacuum pumping valves, service water supply system, exhaust pipe system and electric control box; Vacuum tank and displacement can are combined; Top is vacuum tank, and the bottom is a displacement can, and vacuum tank is communicated with the lower bank water pot through connecting pipe and solenoid valve; Through sluice pipe and check valve inner water is connected to displacement can; This displacement can is connected with the service water supply system through check valve, and the service water supply system connects to form by regulating cut-off valve, service water flow switch and entering water electromagnetic valve successively, and entering water electromagnetic valve is connected with vacuum pump; Vacuum pump is connected with vacuum tank through the exhaust pipe system, and the exhaust pipe system is connected to form by air inlet check valve and service valve successively; Several vacuum pumping valves are connected with the suction sleeve of water pump and the exhaust tube on pump top respectively.
2. a kind of central vacuum system according to claim 1 is characterized in that: the manual service valve that is provided with on two position switch, check valve, solenoid valve and the respective line of above-mentioned vacuum pumping valve by set inside is formed; Wherein: the manual service valve that is provided with on check valve, solenoid valve and the respective line connects successively.
3. a kind of central vacuum system according to claim 1 is characterized in that: high level switch and height vacuum pressure switch are housed on the above-mentioned vacuum tank.
4. a kind of central vacuum system according to claim 1 is characterized in that: be provided with the two position switch in the above-mentioned displacement can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200888039U CN202194798U (en) | 2011-03-30 | 2011-03-30 | Central vacuum device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200888039U CN202194798U (en) | 2011-03-30 | 2011-03-30 | Central vacuum device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194798U true CN202194798U (en) | 2012-04-18 |
Family
ID=45949713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200888039U Expired - Lifetime CN202194798U (en) | 2011-03-30 | 2011-03-30 | Central vacuum device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464932A (en) * | 2014-08-15 | 2016-04-06 | 北京和华腾真空泵压缩机有限公司 | Vacuumization air exhausting device |
| CN107044418A (en) * | 2016-12-30 | 2017-08-15 | 浙江海洋大学 | A kind of Marine vacuum case concentrates diversion system |
-
2011
- 2011-03-30 CN CN2011200888039U patent/CN202194798U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464932A (en) * | 2014-08-15 | 2016-04-06 | 北京和华腾真空泵压缩机有限公司 | Vacuumization air exhausting device |
| CN107044418A (en) * | 2016-12-30 | 2017-08-15 | 浙江海洋大学 | A kind of Marine vacuum case concentrates diversion system |
| CN107044418B (en) * | 2016-12-30 | 2018-11-23 | 浙江海洋大学 | A kind of Marine vacuum case concentration diversion system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |