CN205559228U - Condenser vacuum of thermal power factory maintains vacuum unit - Google Patents
Condenser vacuum of thermal power factory maintains vacuum unit Download PDFInfo
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- CN205559228U CN205559228U CN201620144301.6U CN201620144301U CN205559228U CN 205559228 U CN205559228 U CN 205559228U CN 201620144301 U CN201620144301 U CN 201620144301U CN 205559228 U CN205559228 U CN 205559228U
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Abstract
The utility model discloses a condenser vacuum of thermal power factory maintains vacuum unit, including the vacuum pump package, the vacuum pump package comprises air cooling roots vacuum pump and screw vacuum pump, air cooling roots vacuum pump's gas outlet is passed through the connecting line and is connected with the air inlet of cooler, and the gas outlet of cooler is passed through the connecting line and is connected with screw vacuum pump's air inlet, and screw vacuum pump's gas outlet department is connected with the muffler through the connecting line, the utility model discloses the device adopts screw vacuum pump as the backing pump, and vacuum is higher, pumping rate and vacuum are not influenced by ambient temperature, and the performance is more stable, do not need any medium as working solution, low power dissipation, it is little to take up an area of the space, maintains easy maintenance, the effective pumping speed improves greatly.
Description
Technical field
Air cooling Roots's screw vacuum unit that this utility model is made up of air-cooled roots vacuum pump and Twin-screw vacuum pump,
Belong to vaccum pump unit technical field.
Background technology
Conventional roots pump systems with water ring, owing to the pumping performance of water ring vacuum pump is by the saturated vapor pressure shadow of working water
Ringing, summer, water temperature was high, and the water ring vacuum pump speed of exhaust and vacuum decline the most accordingly, if water temperature reaches 40 degrees Celsius, and water ring
Vacuum pump almost loses service behaviour, and water ring vacuum pump uses water as evacuation medium owing to adopting, so inefficiency.Conventional Roots is true
It is little that empty pump bears pressure reduction, starts evening, affects the effective pumping speed of whole unit.
Air cooling Roots's screw vacuum unit, owing to using screw vacuum pump as backing pump, vacuum is higher, and not by ring
Border temperature impact, performance is more stable, and screw vacuum pump is a kind of dry vacuum pump, it is not necessary to any medium is as working solution, institute
With low in energy consumption.Air-cooled roots vacuum pump, it is possible to bear High Pressure Difference, can start when system vacuum is the highest, so it is effective
Pumping speed is greatly improved, screw vacuum pump compact conformation, and occupation of land space is little, and maintenance and repair is convenient.
The vacuum that conventional unit reaches is low, is influenced by temperature big, and occupation of land space is big and power consumption is high.
Utility model content
The technical problems to be solved in the utility model is for above not enough, it is provided that a kind of thermal power plant condenser vacuum
Maintain vacuum pump set, have that vacuum is high, the most influenced by ambient temperature, performance is more stable, low in energy consumption, take up an area that space is little, safeguard
The advantage that easy to maintenance and effective pumping speed is high.
For solving above technical problem, this utility model by the following technical solutions: a kind of thermal power plant condenser is true
Empty maintenance vacuum pump set, including vacuum pump group, described vacuum pump group is made up of air-cooled roots vacuum pump and screw vacuum pump.
The following is and the further of such scheme is optimized:
The gas outlet of described air-cooled roots vacuum pump is connected with the air inlet of cooler by connecting line, going out of cooler
QI KOU is connected with the air inlet of screw vacuum pump by connecting line, is connected by connecting line at the gas outlet of screw vacuum pump
There is deafener.
The gas outlet of described air-cooled roots vacuum pump is connected with the air inlet of screw vacuum pump by the cold air pipeline that backflows.
Be connected with condenser by connecting line at the air inlet of described air-cooled roots vacuum pump, air-cooled roots vacuum pump and
Connecting line between condenser is provided with air inlet hand-operated valve, air inlet quick-break electromagnetic valve and automatic valve, and air inlet hand-operated valve is provided with
Vacuum meter, air inlet quick-break electromagnetic valve is provided with pressure transmitter.
Described cooler is connected by connecting line floss hole.
On the cooling water inlet of described cooler, temperature sensor is installed.
Described air-cooled roots vacuum pump is provided with the first motor, and screw vacuum pump is provided with the second motor.
Also include control system, it is characterised in that: described control system controls pressure transmitter, automatically respectively by circuit
Valve, the first motor and the second motor.
Also include vacuum line, it is characterised in that: described vacuum line includes that cold air backflows pipeline, connecting tube between vacuum pump
Road, and air inlet/outlet connecting line.
Also include instrument valve, it is characterised in that: described instrument valve includes instrument and valve；
Valve includes air inlet hand-operated valve, air inlet quick-break electromagnetic valve and automatic valve；
Instrument includes vacuum meter, pressure transmitter and temperature sensor.
The advantage of this utility model device is:
1, air cooling Roots screw vacuum unit, uses screw vacuum pump as backing pump, and vacuum is higher；
2, using screw vacuum pump to do backing pump, the speed of exhaust and vacuum the most influenced by ambient temperature, performance is more stable；
3, screw vacuum pump is a kind of dry vacuum pump, it is not necessary to any medium is as working solution, so low in energy consumption；
4, screw vacuum pump compact conformation, occupation of land space is little, and maintenance and repair is convenient；
5, air-cooled roots vacuum pump, it is possible to bear High Pressure Difference, can start when system vacuum is the highest, so it is effective
Pumping speed is greatly improved.
With embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of this utility model device；
In figure,
1-condenser, 2-control system, 3-air-cooled roots vacuum pump, 4-cooler, 5-screw vacuum pump, 6-deafener,
7-air inlet hand-operated valve, 8-vacuum meter, 9-air inlet quick-break electromagnetic valve, 10-pressure transmitter, 11-automatic valve, 12-the first motor,
13-the second motor, 14-floss hole, 15-air vent, 16-temperature sensor, 17-cold air backflows pipeline.
Detailed description of the invention
Embodiment, as it is shown in figure 1, a kind of thermal power plant condenser vacuum maintains vacuum pump set, including vacuum pump group, cold
But device 4, vacuum line, instrument valve and control system 2；
Vacuum pump group is made up of air-cooled roots vacuum pump and screw vacuum pump.
Be connected with condenser 1 by connecting line at the air inlet of air-cooled roots vacuum pump 3, air-cooled roots vacuum pump 3 and
Connecting line between condenser 1 is provided with air inlet hand-operated valve 7, air inlet quick-break electromagnetic valve 9 and automatic valve 11, air inlet hand-operated valve 7
Being provided with vacuum meter 8, air inlet quick-break electromagnetic valve 9 is provided with pressure transmitter 10.
The gas outlet of air-cooled roots vacuum pump 3 is connected with the air inlet of cooler 4 by connecting line, going out of cooler 4
QI KOU is connected with the air inlet of screw vacuum pump 5 by connecting line, at the gas outlet of screw vacuum pump 5 by connecting line even
Being connected to deafener 6, deafener 6 connects floss hole 14 and air vent 15.
The gas outlet of air-cooled roots vacuum pump 3 is connected with the air inlet of screw vacuum pump 5 by the cold air pipeline 17 that backflows.
Cooler 4 is connected by connecting line floss hole 14.
Temperature sensor 16 is installed on the cooling water inlet of cooler 4.
Air-cooled roots vacuum pump 3 is provided with the first motor 12, and screw vacuum pump 5 is provided with the second motor 13.
It is electronic that control system 2 controls pressure transmitter 10, automatic valve the 11, first motor 12 and second respectively by circuit
Machine 13.
Vacuum line includes: cold air backflows pipeline 17, connecting line between vacuum pump, and air inlet/outlet connecting line.
Instrument valve includes instrument and valve；
Valve specifically includes that air inlet hand-operated valve 7, air inlet quick-break electromagnetic valve 9 and automatic valve 11.
Instrument specifically includes that vacuum meter 8(negative pressure), pressure transmitter 10(negative pressure) and temperature sensor 16.
Control system 2 is DCS control system.
Cooler 4 is interstage cooler.
Screw vacuum pump adds cooler as backing pump, air-cooled roots vacuum pump as main pump, air cooling lobe pump row's mouth, joins
Put relevant instrument valve, pipe fitting, control system, form complete air cooling Roots's screw vacuum unit, the operation of this vacuum pump set
Work process is as follows:
1, by start button, screw vacuum pump 5 starts under the second motor 13 drives；
2, while screw vacuum pump 15 starts, automatic valve 11 is opened；
3, after system vacuum reaches to set numerical value, air-cooled roots vacuum pump 3 starts under the first motor 12 drives automatically；
4, in gas is first inhaled into air-cooled roots vacuum pump 3 in condenser, through subcooler 4, it is being inhaled into screw vacuum
In pump 5, after discharge through deafener 6；
5, system vacuum is shown on the spot by vacuum meter 8, and through pressure transmitter 10, signal is passed to control system
2；
6, condensable gas takes part of the condensate after air-cooled roots vacuum pump 3 enters cooler 4, and condensed fluid is periodically through row
Put mouth 14 to discharge.
When 7, shutting down, by stop button, air cooling lobe pump 3, automatic valve 11 are closed, and screw vacuum pump 5 is finally closed.
The above is the citing of this utility model preferred forms, and the part addressed the most in detail is this area
The common knowledge of those of ordinary skill.Protection domain of the present utility model is as the criterion with the content of claim, any based on this reality
The equivalent transformation carried out with novel technology enlightenment, also within protection domain of the present utility model.
Claims (9)
1. thermal power plant condenser vacuum maintains a vacuum pump set, including vacuum pump group, it is characterised in that: described vacuum pump
Group is made up of air-cooled roots vacuum pump (3) and screw vacuum pump (5)；
The gas outlet of described air-cooled roots vacuum pump (3) is connected with the air inlet of cooler (4) by connecting line, cooler
(4) gas outlet is connected with the air inlet of screw vacuum pump (5) by connecting line, logical at the gas outlet of screw vacuum pump (5)
Cross connecting line connection and have deafener (6).
A kind of thermal power plant the most according to claim 1 condenser vacuum maintains vacuum pump set, it is characterised in that: described
The gas outlet of air-cooled roots vacuum pump (3) is connected with the air inlet of screw vacuum pump (5) by the cold air pipeline (17) that backflows.
A kind of thermal power plant the most according to claim 1 condenser vacuum maintains vacuum pump set, it is characterised in that: described
Being connected with condenser (1) by connecting line at the air inlet of air-cooled roots vacuum pump (3), air-cooled roots vacuum pump (3) is with solidifying
Connecting line between vapour device (1) is provided with air inlet hand-operated valve (7), air inlet quick-break electromagnetic valve (9) and automatic valve (11), air inlet hands
Dynamic valve (7) is provided with vacuum meter (8), and air inlet quick-break electromagnetic valve (9) is provided with pressure transmitter (10).
A kind of thermal power plant the most according to claim 1 condenser vacuum maintains vacuum pump set, it is characterised in that: described
Cooler (4) is connected by connecting line floss hole (14).
A kind of thermal power plant the most according to claim 4 condenser vacuum maintains vacuum pump set, it is characterised in that: described
Temperature sensor (16) is installed on the cooling water inlet of cooler (4).
A kind of thermal power plant the most according to claim 1 condenser vacuum maintains vacuum pump set, it is characterised in that: described
Air-cooled roots vacuum pump (3) is provided with the first motor (12), and screw vacuum pump (5) is provided with the second motor (13).
A kind of thermal power plant the most according to claim 1 condenser vacuum maintains vacuum pump set, also includes control system
(2), it is characterised in that: described control system (2) by circuit control respectively pressure transmitter (10), automatic valve (11), first
Motor (12) and the second motor (13).
A kind of thermal power plant the most according to claim 1 condenser vacuum maintains vacuum pump set, also includes vacuum line,
It is characterized in that: described vacuum line includes that cold air backflows pipeline (17), connecting line between vacuum pump, and air inlet/outlet connect
Pipeline.
A kind of thermal power plant the most according to claim 1 condenser vacuum maintains vacuum pump set, also includes instrument valve,
It is characterized in that: described instrument valve includes instrument and valve；
Valve includes air inlet hand-operated valve (7), air inlet quick-break electromagnetic valve (9) and automatic valve (11)；
Instrument includes vacuum meter (8), pressure transmitter (10) and temperature sensor (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620144301.6U CN205559228U (en) | 2016-02-26 | 2016-02-26 | Condenser vacuum of thermal power factory maintains vacuum unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620144301.6U CN205559228U (en) | 2016-02-26 | 2016-02-26 | Condenser vacuum of thermal power factory maintains vacuum unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559228U true CN205559228U (en) | 2016-09-07 |
Family
ID=56819517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620144301.6U Active CN205559228U (en) | 2016-02-26 | 2016-02-26 | Condenser vacuum of thermal power factory maintains vacuum unit |
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| CN (1) | CN205559228U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107151936A (en) * | 2017-06-06 | 2017-09-12 | 中联西北工程设计研究院有限公司 | A kind of suction box frequency conversion vacuumizes environmental protecting device |
| CN113982928A (en) * | 2021-10-29 | 2022-01-28 | 山东宽量节能环保技术有限公司 | Screw vacuum pump and liquid ring vacuum pump series-parallel combined system |
-
2016
- 2016-02-26 CN CN201620144301.6U patent/CN205559228U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107151936A (en) * | 2017-06-06 | 2017-09-12 | 中联西北工程设计研究院有限公司 | A kind of suction box frequency conversion vacuumizes environmental protecting device |
| CN107151936B (en) * | 2017-06-06 | 2019-04-09 | 中联西北工程设计研究院有限公司 | A kind of suction box frequency conversion vacuumizes environmental protecting device |
| CN113982928A (en) * | 2021-10-29 | 2022-01-28 | 山东宽量节能环保技术有限公司 | Screw vacuum pump and liquid ring vacuum pump series-parallel combined system |
| CN113982928B (en) * | 2021-10-29 | 2024-05-07 | 山东宽量节能环保技术有限公司 | Series-parallel connection combined system of screw vacuum pump and liquid ring vacuum pump |
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