CN209147762U - A kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems - Google Patents
A kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems Download PDFInfo
- Publication number
- CN209147762U CN209147762U CN201821464447.4U CN201821464447U CN209147762U CN 209147762 U CN209147762 U CN 209147762U CN 201821464447 U CN201821464447 U CN 201821464447U CN 209147762 U CN209147762 U CN 209147762U
- Authority
- CN
- China
- Prior art keywords
- back pressure
- pressure condenser
- pump
- vacuum
- condenser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to a kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems, belong to the power-saving technology of field of thermal power.It is clearly to waste energy consumption that the existing large capacity water-ring vacuum pump for establishing vacuum, which is used as the equipment for maintaining vacuum,.The utility model includes high back pressure condenser and low back pressure condenser, its main feature is that: it further include high back pressure condenser water ring vacuum pumps, high back pressure condenser multi-stage dry Roots vaccum pump, low back pressure condenser water ring vacuum pumps and low back pressure condenser multi-stage dry Roots vaccum pump, high back pressure condenser water circular vacuum pump inlet isolating door and high back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door are connect with high back pressure condenser.The utility model by multi-stage dry Roots vaccum pump be applied to generating set double pressure condenser pumped vacuum systems in, can solve establish vacuum large capacity water-ring vacuum pump be used as maintain vacuum equipment brought by waste energy consumption problem.
Description
Technical field
The utility model relates to a kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems, belong to firepower hair
The power-saving technology of electrical domain.
Background technique
Domestic active service thermal power generation unit is main to consider quickly to open the response speed of machine (in 30 minutes in design selection
Can reach and open the confidential vacuum values asked) and maximum permission air leakage as Type Selection Principle, it is true often to choose large capacity liquid-ring type
Sky pump is as vaccum-pumping equipment.But when unit operates normally, maintain have larger surplus when system vacuum, it is therefore, true establishing
It is clearly to waste energy consumption that empty large capacity water-ring vacuum pump, which is used as the equipment for maintaining vacuum,.Suction pressure is liquid-ring type vacuum
Pump inlet pressure (based on condenser pressure), and change (condenser bleeding point with the variation of condenser pressure
Pressure is generally in 3.39~12kPa).The characteristic of water-ring vacuum pump itself determines that its efficiency is lower, establishes in condenser
When vacuum reaches -80kPa or more, gross efficiency is generally below 30%.The performance requirement of water-ring vacuum pump and the general requirement of test
The water temperature that works is at 15-20 DEG C.But when summer high temperature, work water temperature such as reaches 30 DEG C, and the pumping efficiency of water ring vacuum pump is down to 15-
30%, if work water temperature reaches 35 DEG C, performance, power output will settle to 10% and decline hereinafter, may cause condenser vacuum, make
It is reduced at unit economy.
The ultimate vacuum value of multi-stage dry Roots vaccum pump is less than 50Pa, than the ultimate vacuum value of water-ring vacuum pump
(3300Pa) about high several orders of magnitude meet the lectotype selection design requirement for maintaining system vacuum.Due to multi-stage dry, Roots is true
Sky pump is air cooling dry vacuum pump, and suction capactity is not influenced by working solution water temperature, therefore working solution temperature pumps high-efficient vacuumizing
System does not influence, and gas vapour mixture also not will cause the heating of lobe pump group after condensing unit is cooling.Most importantly
Single set multi-stage dry Roots vaccum pump may be designed as power of motor not higher than 30kW, can economize on electricity compared to water-ring vacuum pump motor
80%.Publication date is on October 12nd, 2016, in the Chinese patent of Publication No. CN106014995A, is disclosed a kind of multistage dry
Formula Roots vaccum pump, but and it is unresolved the water-ring vacuum pump for establishing vacuum is used as maintain the equipment bring energy consumption of vacuum to ask
Topic does not address how for multi-stage dry Roots vaccum pump to be applied in generating set double pressure condenser pumped vacuum systems yet
Technical problem.
Utility model content
The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and provide a kind of multi-stage dry sieve
Thatch vacuum pump double pressure condenser pumped vacuum systems, water-ring vacuum pump is by work water temperature shadow during can solving generating set operation
The problem of ringing and power output and pumping efficiency caused to decline, on the other hand because dry type Roots vaccum pump power of motor is true compared to liquid-ring type
Empty pump motor power is small by 80% or so, and unit station service power consumption rate can be effectively reduced, so that power generation and net coal consumption rate are reduced, device knot
Structure is simple, it is easy to accomplish.
The technical scheme in the invention for solving the above technical problem is: the double back pressures of the multi-stage dry Roots vaccum pump are solidifying
Vapour device pumped vacuum systems includes high back pressure condenser hotwell, low back pressure condenser hotwell, high back pressure condenser, low back pressure condensing
Device, high back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device, low back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device and solidifying
Pump is born water, the high back pressure condenser is connected with high back pressure condenser hotwell, and the high back pressure Tightness Property of Condenser Vacuum System is online
Monitoring device is mounted on high back pressure condenser, and the low back pressure condenser is connected with low back pressure condenser hotwell, the low back
Pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device is mounted on low back pressure condenser, the high back pressure condenser hotwell and low back
Pressure condenser hotwell is connect with condensate pump, and design feature is: further include high back pressure condenser water ring vacuum pumps into
Mouth isolating door, high back pressure condenser water ring vacuum pumps, high back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door, height
Back pressure condenser multi-stage dry Roots vaccum pump, low back pressure condenser water circular vacuum pump inlet isolating door, low back pressure condenser
Water-ring vacuum pump, low back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door and low back pressure condenser multi-stage dry sieve
Thatch vacuum pump, the high back pressure condenser water circular vacuum pump inlet isolating door and high back pressure condenser multi-stage dry Roots vacuum
Pump inlet isolating door is connect with high back pressure condenser, the high back pressure condenser water ring vacuum pumps and high back pressure condenser water
The connection of circular vacuum pump inlet isolating door, the high back pressure condenser multi-stage dry Roots vaccum pump and high back pressure condenser are multistage
The connection of dry type Roots vacuum pump inlet isolating door, the low back pressure condenser water circular vacuum pump inlet isolating door and low back pressure are solidifying
Vapour device multi-stage dry Roots vacuum pump inlet isolating door is connect with low back pressure condenser, and the low back pressure condenser water ring type is true
Sky pump is connected with low back pressure condenser water circular vacuum pump inlet isolating door, the low back pressure condenser multi-stage dry Roots vacuum
Pump is connected with low back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door.
Preferably, high back pressure condenser multi-stage dry Roots vaccum pump described in the utility model and low back pressure condenser are more
Grade dry type Roots vaccum pump is level Four Roots vaccum pump.
Preferably, level Four Roots vaccum pump described in the utility model includes control system, lobe pump level-one, lobe pump two
Grade, lobe pump three-level, lobe pump level Four, level-one air-cooled exchanger, second level air-cooled exchanger, heat exchanger, muffler, pressure inverting
Device, Pneumatic butterfly valve and temperature transmitter, the level-one air-cooled exchanger are connected between lobe pump level-one and lobe pump second level, institute
It states second level air-cooled exchanger to be connected between lobe pump second level and lobe pump three-level, three cascade of the lobe pump level Four and lobe pump
It connects, the heat exchanger is connected with lobe pump level Four, and the muffler is connected with heat exchanger, the pressure transmitter and Pneumatic butterfly valve
It is mounted on the import of lobe pump level-one, the temperature transmitter is connect with heat exchanger, the pressure transmitter, Pneumatic butterfly valve and temperature
Degree transmitter is connect with control system.
A kind of multi-stage dry Roots vaccum pump double pressure condenser vacuum pumping method, it is characterised in that: using described more
Grade dry type Roots vaccum pump double pressure condenser pumped vacuum systems, the multi-stage dry Roots vaccum pump double pressure condenser are taken out true
The step of short side method, is as follows: during generating set starting, running the high back pressure condenser water ring vacuum pumps of large capacity and low
Back pressure condenser water ring vacuum pumps, to establish high back pressure condenser and low back pressure condenser vacuum；When unit operates normally,
High back pressure condenser multi-stage dry Roots vaccum pump and low back pressure condenser multi-stage dry Roots vaccum pump are run, to maintain highback
Press condenser and low back pressure condenser vacuum.
Preferably, high back pressure condenser described in the utility model and low back pressure condenser are respectively arranged with high back pressure condensing
Device vacuum tightness on-Line Monitor Device and low back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device, when high back pressure condenser and
When the vacuum tightness of low back pressure condenser is higher than 270Pa/min, high back pressure condenser multi-stage dry Roots vaccum pump and low back
Pressure condenser multi-stage dry Roots vaccum pump is not able to satisfy when high back pressure condenser and low back pressure condenser vacuum being maintained to need, and is cut
It is changed to the high back pressure condenser water ring vacuum pumps and low back pressure condenser water ring vacuum pumps of operation large capacity.
Preferably, high back pressure condenser water ring vacuum pumps and low back pressure are solidifying when the utility model generating set starts
Vapour device water-ring vacuum pump puts into operation by normal operating mode, establishes for high back pressure condenser and low back pressure condenser true
It is empty；When unit normal operation, and after high back pressure condenser and low back pressure condenser vacuum stabilization, high back pressure condenser multi-stage dry
Roots vaccum pump and low back pressure condenser multi-stage dry Roots vaccum pump put into operation, high back pressure condenser water ring vacuum pumps and
Low back pressure condenser water ring vacuum pumps are shut down spare；When high back pressure condenser multi-stage dry Roots vaccum pump and low back pressure condensing
Device multi-stage dry Roots vaccum pump is in termination of pumping or equipment fault, high back pressure condenser water ring vacuum pumps and low back pressure condenser
Water-ring vacuum pump interlocking puts into operation, and Roots vacuum pump group inlet induction door is automatically closed, to ensure system vacuum requirement.
Preferably, the utility model high back pressure condenser multi-stage dry Roots vaccum pump and low back pressure condenser multistage are dry
Work efficiency is high for formula Roots vaccum pump, and pumping limit vacuum values are less than 50Pa, than high back pressure condenser water ring vacuum pumps
With the several orders of magnitude of ultimate vacuum value 3300Pa high of low back pressure condenser water ring vacuum pumps, meets and maintain setting for system vacuum
Alternative type design requirement.
Preferably, the utility model high back pressure condenser multi-stage dry Roots vaccum pump and low back pressure condenser multistage are dry
Formula Roots vaccum pump is air cooling dry vacuum pump.
The utility model compared with prior art, has the following advantages that and effect: high back pressure condenser multi-stage dry Roots
Vacuum pump is connected in parallel with high back pressure condenser water ring vacuum pumps, low back pressure condenser multi-stage dry Roots vaccum pump and low back
Pressure condenser water ring vacuum pumps are connected in parallel, and the import of water-ring vacuum pump and multi-stage dry Roots vaccum pump is designed with pneumatically
Isolating valve, high back pressure condenser and low back pressure condenser are mounted on vacuum tightness on-Line Monitor Device, can solve generator
Group operation during water-ring vacuum pump by work Water Temperature and cause power output and pumping efficiency decline the problem of, on the other hand because
Dry type Roots vaccum pump power of motor is small by 80% or so compared to water-ring vacuum pump power of motor, and unit station-service can be effectively reduced
Electric rate, to reduce power generation and net coal consumption rate.
Detailed description of the invention
Fig. 1 is multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems status diagram.
Fig. 2 is multi-stage dry Roots vaccum pump and its auxiliary device status schematic diagram.
In figure: 1 being high back pressure condenser hotwell, 2 be low back pressure condenser hotwell, 3 be high back pressure condenser, 4 be low back
Pressure condenser, 5 be high back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device, 6 be that low back pressure Tightness Property of Condenser Vacuum System is online
Monitoring device, 7 be low back pressure condenser water circular vacuum pump inlet isolating door, 8 be low back pressure condenser water ring vacuum pumps, 9
It is low back pressure condenser multi-stage dry Roots vacuum for low back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door, 10
Pump, 11 be high back pressure condenser water circular vacuum pump inlet isolating door, 12 be high back pressure condenser water ring vacuum pumps, 13 be height
Back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door, 14 are high back pressure condenser multi-stage dry Roots vaccum pump, 15
It is control system for condensate pump, 100,101 be lobe pump level-one, 102 be lobe pump second level, 103 is lobe pump three-level, 104
For lobe pump level Four, 105 be level-one air-cooled exchanger, 106 be second level air-cooled exchanger, 107 be heat exchanger, 108 be muffler,
109 it is pressure transmitter, 110 be Pneumatic butterfly valve, 111 is temperature transmitter.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
Embodiment.
Referring to Fig. 1 to Fig. 2, the multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems in the present embodiment includes
High back pressure condenser hotwell 1, low back pressure condenser hotwell 2, high back pressure condenser 3, low back pressure condenser 4, high back pressure condenser
Vacuum tightness on-Line Monitor Device 5, low back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device 6, low back pressure condenser water ring
Formula vacuum pump inlet isolating door 7, low back pressure condenser water ring vacuum pumps 8, low back pressure condenser multi-stage dry Roots vaccum pump
Import isolating door 9, low back pressure condenser multi-stage dry Roots vaccum pump 10, high back pressure condenser water circular vacuum pump inlet isolation
Door 11, high back pressure condenser water ring vacuum pumps 12, high back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door 13, height
Back pressure condenser multi-stage dry Roots vaccum pump 14 and condensate pump 15.Wherein, low back pressure condenser multi-stage dry Roots vacuum
Pump 10 and high back pressure condenser multi-stage dry Roots vaccum pump 14 are air cooling dry vacuum pump.
High back pressure condenser 3 and high back pressure condenser hotwell 1 in the present embodiment connect, and high back pressure condenser vacuum is tight
Property on-Line Monitor Device 5 be mounted on high back pressure condenser 3, low back pressure condenser 4 and low back pressure condenser hotwell 2 connection, it is low
Back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device 6 is mounted on low back pressure condenser 4, high back pressure condenser hotwell 1 and low
Back pressure condenser hotwell 2 is connect with condensate pump 15.
Low back pressure condenser water circular vacuum pump inlet isolating door 7 and low back pressure condenser multi-stage dry in the present embodiment
Roots vacuum pump inlet isolating door 9 is connect with low back pressure condenser 4, low back pressure condenser water ring vacuum pumps 8 and low back pressure
Condenser water circular vacuum pump inlet isolating door 7 connects, and low back pressure condenser multi-stage dry Roots vaccum pump 10 and low back pressure are solidifying
Vapour device multi-stage dry Roots vacuum pump inlet isolating door 9 connects, 11 He of high back pressure condenser water circular vacuum pump inlet isolating door
High back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door 13 is connect with high back pressure condenser 3, high back pressure condenser
Water-ring vacuum pump 12 and high back pressure condenser water circular vacuum pump inlet isolating door 11 connect, high back pressure condenser multi-stage dry
Roots vaccum pump 14 and high back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door 13 connect.
Low back pressure condenser multi-stage dry Roots vaccum pump 10 and high back pressure condenser multi-stage dry sieve in the present embodiment
Thatch vacuum pump 14 all can be level Four Roots vaccum pump.Level Four Roots vaccum pump include control system 100, lobe pump level-one 101,
Lobe pump second level 102, lobe pump three-level 103, lobe pump level Four 104, level-one air-cooled exchanger 105, second level air-cooled exchanger
106, heat exchanger 107, muffler 108, pressure transmitter 109, Pneumatic butterfly valve 110 and temperature transmitter 111, level-one air cooling heat exchange
Device 105 is connected between lobe pump level-one 101 and lobe pump second level 102, and second level air-cooled exchanger 106 is connected to lobe pump second level
Between 102 and lobe pump three-level 103, lobe pump level Four 104 and lobe pump three-level 103 are connected, heat exchanger 107 and lobe pump level Four
104 connections, muffler 108 and heat exchanger 107 connect, pressure transmitter 109 and Pneumatic butterfly valve 110 with lobe pump level-one 101
Connection, temperature transmitter 111 are connect with heat exchanger 107, and pressure transmitter 109, Pneumatic butterfly valve 110 and temperature transmitter 111 are equal
It is connect with control system 100.
The step of multi-stage dry Roots vaccum pump double pressure condenser vacuum pumping method in the present embodiment, is as follows: working as power generation
During unit starting, the high back pressure condenser water ring vacuum pumps 12 and low back pressure condenser water ring vacuum pumps of large capacity are run
8, to establish high back pressure condenser 3 and low 4 vacuum of back pressure condenser；When unit operates normally, operation high back pressure condenser is more
Grade dry type Roots vaccum pump 14 and low back pressure condenser multi-stage dry Roots vaccum pump 10, to maintain high back pressure condenser 3 and low
4 vacuum of back pressure condenser.
It is tight that high back pressure condenser 3 and low back pressure condenser 4 in the present embodiment are respectively arranged with high back pressure condenser vacuum
Close property on-Line Monitor Device 5 and low back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device 6, when high back pressure condenser 3 and low back
When the vacuum tightness of condenser 4 being pressed to be higher than 270Pa/min, high back pressure condenser multi-stage dry Roots vaccum pump 14 and low back pressure
Condenser multi-stage dry Roots vaccum pump 10 is not able to satisfy when high back pressure condenser 3 and low 4 vacuum of back pressure condenser being maintained to need,
It is switched to the high back pressure condenser water ring vacuum pumps 12 and low back pressure condenser water ring vacuum pumps 8 of operation large capacity.
When generating set in the present embodiment starts, high back pressure condenser water ring vacuum pumps 12 and low back pressure condenser water
Ring vacuum pumps 8 put into operation by normal operating mode, establish vacuum for high back pressure condenser 3 and low back pressure condenser 4；When
Unit normal operation, and after high back pressure condenser 3 and low 4 vacuum of back pressure condenser stabilization, high back pressure condenser multi-stage dry sieve
Thatch vacuum pump 14 and low back pressure condenser multi-stage dry Roots vaccum pump 10 put into operation, high back pressure condenser water ring vacuum pumps
12 and low back pressure condenser water ring vacuum pumps 8 shut down it is spare；When high back pressure condenser multi-stage dry Roots vaccum pump 14 and low
Back pressure condenser multi-stage dry Roots vaccum pump 10 is in termination of pumping or equipment fault, 12 He of high back pressure condenser water ring vacuum pumps
The low interlocking of back pressure condenser water ring vacuum pumps 8 puts into operation, and Roots vacuum pump group inlet induction door is automatically closed, to ensure to be
System vacuum requirement.
High back pressure condenser multi-stage dry Roots vaccum pump 14 and low back pressure condenser multi-stage dry sieve in the present embodiment
Work efficiency is high for thatch vacuum pump 10, and pumping limit vacuum values are less than 50Pa, than high back pressure condenser water ring vacuum pumps 12
With the several orders of magnitude of ultimate vacuum value 3300Pa high of low back pressure condenser water ring vacuum pumps 8, meets and maintain system vacuum
Lectotype selection requirement.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to the utility model structure example explanation described in this specification.
All equivalence changes or simple change done according to structure, feature and principle described in the concept of the patent of the utility model, are wrapped
It includes in the protection scope of the utility model patent.Those skilled in the art of the present invention can be to described
Specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from the knot of the utility model
Structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (3)
1. a kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems, including high back pressure condenser hotwell, low back
Press condenser hotwell, high back pressure condenser, low back pressure condenser, high back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device, low
Back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device and condensate pump, the high back pressure condenser and high back pressure condenser hotwell
Connection, the high back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device are mounted on high back pressure condenser, and the low back pressure is solidifying
Vapour device is connected with low back pressure condenser hotwell, and the low back pressure Tightness Property of Condenser Vacuum System on-Line Monitor Device is mounted on low back pressure
On condenser, the high back pressure condenser hotwell and low back pressure condenser hotwell are connect with condensate pump, it is characterised in that: also
Including high back pressure condenser water circular vacuum pump inlet isolating door, high back pressure condenser water ring vacuum pumps, high back pressure condenser
Multi-stage dry Roots vacuum pump inlet isolating door, high back pressure condenser multi-stage dry Roots vaccum pump, low back pressure condenser water ring
Formula vacuum pump inlet isolating door, low back pressure condenser water ring vacuum pumps, low back pressure condenser multi-stage dry Roots vaccum pump into
Mouth isolating door and low back pressure condenser multi-stage dry Roots vaccum pump, the high back pressure condenser water circular vacuum pump inlet isolation
Door and high back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door are connect with high back pressure condenser, and the high back pressure is solidifying
Vapour device water-ring vacuum pump is connected with high back pressure condenser water circular vacuum pump inlet isolating door, and the high back pressure condenser is multistage
Dry type Roots vaccum pump is connected with high back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door, the low back pressure condenser
Water-ring vacuum pump import isolating door and low back pressure condenser multi-stage dry Roots vacuum pump inlet isolating door are solidifying with low back pressure
The connection of vapour device, the low back pressure condenser water ring vacuum pumps and low back pressure condenser water circular vacuum pump inlet isolating door connect
It connects, the low back pressure condenser multi-stage dry Roots vaccum pump and low back pressure condenser multi-stage dry Roots vacuum pump inlet isolation
Door connection.
2. multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems according to claim 1, it is characterised in that:
The high back pressure condenser multi-stage dry Roots vaccum pump and low back pressure condenser multi-stage dry Roots vaccum pump are level Four sieve
Thatch vacuum pump.
3. multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems according to claim 2, it is characterised in that:
The level Four Roots vaccum pump includes control system, lobe pump level-one, lobe pump second level, lobe pump three-level, lobe pump level Four, one
Grade air-cooled exchanger, second level air-cooled exchanger, heat exchanger, muffler, pressure transmitter, Pneumatic butterfly valve and temperature transmitter, institute
It states level-one air-cooled exchanger to be connected between lobe pump level-one and lobe pump second level, the second level air-cooled exchanger is connected to Roots
It pumps between second level and lobe pump three-level, the lobe pump level Four is connected with lobe pump three-level, the heat exchanger and lobe pump level Four
Connection, the muffler connects with heat exchanger, and the pressure transmitter and Pneumatic butterfly valve are mounted on the import of lobe pump level-one, institute
It states temperature transmitter to connect with heat exchanger, the pressure transmitter, Pneumatic butterfly valve and temperature transmitter are connect with control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464447.4U CN209147762U (en) | 2018-09-07 | 2018-09-07 | A kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464447.4U CN209147762U (en) | 2018-09-07 | 2018-09-07 | A kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209147762U true CN209147762U (en) | 2019-07-23 |
Family
ID=67266988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821464447.4U Active CN209147762U (en) | 2018-09-07 | 2018-09-07 | A kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209147762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237959A (en) * | 2018-09-07 | 2019-01-18 | 华电电力科学研究院有限公司 | A kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems and method |
-
2018
- 2018-09-07 CN CN201821464447.4U patent/CN209147762U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237959A (en) * | 2018-09-07 | 2019-01-18 | 华电电力科学研究院有限公司 | A kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110500148B (en) | High-back-pressure heat supply and monitoring method and system for large steam turbine generator unit | |
| CN107514294A (en) | A kind of combined compressed air energy-storage system and its control method | |
| CN115200064B (en) | Adjusting method of heating system combining vapor compressor with high back pressure heating | |
| CN209147762U (en) | A kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems | |
| CN204827878U (en) | Large -scale thermal power unit vacuum keeps system | |
| CN205580236U (en) | Energy -conserving improvement system in steam turbine condenser vacuum | |
| CN109237959A (en) | A kind of multi-stage dry Roots vaccum pump double pressure condenser pumped vacuum systems and method | |
| CN209943095U (en) | Energy-saving cone vacuum pump unit | |
| CN210768938U (en) | High back pressure heat supply and monitoring system of large-scale turbo generator set | |
| CN207365738U (en) | A kind of steam condenser of steam turbine set vacuum with high-low pressure condenser maintains equipment | |
| CN204878012U (en) | Centrifugal compressor heat recovery refrigeration application system | |
| CN107993807B (en) | A kind of transformer cooling system | |
| CN216554044U (en) | 600MW unit steam-heat output integrated device | |
| CN202810977U (en) | Condensed steam back-heating type small-turbine driving rotation equipment system of thermal power plant | |
| CN206368724U (en) | A kind of adjustable operating mode type low-temperature cogeneration device | |
| CN200993028Y (en) | Steam turbine low-pressure shaft seal water-sealing system | |
| CN212133342U (en) | Air-wet series cooling system suitable for air cooling unit | |
| CN105698241B (en) | A kind of method of 150MW high back pressures thermal power plant unit circulation pump of heat-supply network operation | |
| CN204878028U (en) | Centrifugal compressor heat recovery system | |
| CN207622562U (en) | A kind of nuclear power plant's energy-saving vacuum pumping system | |
| CN206670398U (en) | Condenser of power plant vacuumizes operation maintenance system | |
| CN217005412U (en) | Efficient and energy-saving thermal power air cooling unit | |
| CN211370507U (en) | A vacuum pumping system for two backpressure condensers of large-scale turbine unit | |
| CN217001991U (en) | Evacuation structure after condenser unit changes backpressure unit based on condenser is good for old | |
| CN206256941U (en) | A kind of condensing turbine organic working medium circulating cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |