CN111486095B - Intelligent control lubricating system and intelligent control method for sewage collection - Google Patents
Intelligent control lubricating system and intelligent control method for sewage collection Download PDFInfo
- Publication number
- CN111486095B CN111486095B CN202010298764.9A CN202010298764A CN111486095B CN 111486095 B CN111486095 B CN 111486095B CN 202010298764 A CN202010298764 A CN 202010298764A CN 111486095 B CN111486095 B CN 111486095B
- Authority
- CN
- China
- Prior art keywords
- control valve
- pneumatic control
- pipeline
- sewage collection
- rotor pump
- 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
- 239000010865 sewage Substances 0.000 title claims abstract description 39
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000005461 lubrication Methods 0.000 claims abstract description 17
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 239000008399 tap water Substances 0.000 claims abstract description 12
- 235000020679 tap water Nutrition 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/021—Control systems for the circulation of the lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sewage (AREA)
Abstract
The invention discloses an intelligent control lubricating system for sewage collection, which comprises a sewage collection station, wherein the right end of a first pipeline in the sewage collection station penetrates out of the sewage collection station and is connected with a pressure stabilizing tank in the rear way, the upper end of the pressure stabilizing tank is connected with a pneumatic control valve shell, and a piston is arranged in the pneumatic control valve shell; the upper end of the pneumatic control valve shell is connected with a tap water source; the combined type vacuum rotor pump is connected to gas accuse valve casing upper right end, and all is connected with gas accuse valve casing lower extreme from top to bottom at combined type vacuum rotor pump left end, and combined type vacuum rotor pump left end middle part is connected with the surge tank. The invention also discloses an intelligent control method of the intelligent control lubricating system for sewage collection, which comprises the following steps: step 1: constructing a lubricating system; step 2: the water source of tap water is controlled by a pneumatic control valve, and the automatic water adding lubrication of the composite vacuum rotor pump is completed. The invention can automatically add water when the negative pressure changes due to the decrease of lubrication, complete the lubrication of the vacuum rotor pump and ensure the stable operation of the system.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of sewage treatment, in particular to the technical field of an intelligent control lubricating system and an intelligent control method for sewage collection.
[ background of the invention ]
The existing sewage is provided with a vacuum pump station in the collection process. In sewage collection systems, different types of devices are often required to bring the vacuum force required for collection. A common apparatus is a vacuum rotor pump. The rotor pump is a pump in which the working volume is changed by the relative movement between a rotor and a pump body, and the energy of liquid is increased. In order to ensure the stable output of vacuum force during the operation of the vacuum rotor pump, the liquid in the vacuum rotor pump can form a liquid film. The water lubrication of the vacuum rotor pump is particularly important for guaranteeing the stability of the vacuum force of the pump. Therefore, an intelligent control lubricating system and an intelligent control method for sewage collection are needed to realize automatic water feeding lubrication of the vacuum rotor pump and ensure stable operation of the system.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides an intelligent control lubricating system and an intelligent control method for sewage collection, which can automatically add water when negative pressure changes due to lubrication reduction, complete lubrication of a vacuum rotor pump and ensure stable operation of the system.
In order to achieve the purpose, the invention provides an intelligent control lubricating system for sewage collection, which comprises a sewage collection station, wherein a first pipeline is arranged in the sewage collection station, a stop valve and a pressure gauge are arranged between the first pipelines, the right end of the first pipeline penetrates out of the sewage collection station and then is connected with a pressure stabilizing tank through a second pipeline, the upper end of the pressure stabilizing tank is connected with a pneumatic control valve shell through a third pipeline, a piston is arranged in the pneumatic control valve shell, the upper end of the piston is matched with a nozzle, and the nozzle is fixed above the inside of the pneumatic control valve shell; the lower end of the piston is sleeved with a spring, the lower end face of the spring is in contact with a partition plate, the partition plate is fixed below the inner part of the pneumatic control valve shell, a sealing ring is embedded in the middle of the partition plate, and the inner ring of the sealing ring is matched with the piston; the upper end of the pneumatic control valve shell is connected with a tap water source through a fourth pipeline; the upper right end of the pneumatic control valve shell is connected with the combined type vacuum rotor pump through a fifth pipeline, the left end of the combined type vacuum rotor pump is connected with the lower end of the pneumatic control valve shell through a sixth pipeline from top to bottom, and the middle of the left end of the combined type vacuum rotor pump is connected with the pressure stabilizing tank through a seventh pipeline.
Preferably, the upper end of the inner wall of the pneumatic control valve shell is provided with a first notch which is an annular groove, and a nozzle is embedded in the first notch.
Preferably, the upper right end of the pneumatic control valve shell is provided with a first pipe connector, and the first pipe connector is connected with the composite vacuum rotor pump through a fifth pipeline; and a second pipe connector is mounted at the left lower end of the pneumatic control valve shell and connected with the surge tank through a third pipeline.
Preferably, the middle part of the piston is provided with a special-shaped through hole, the special-shaped through hole consists of an upper inverted frustum hole, a middle small cylindrical hole and a lower long cylindrical hole, and the upper end of the special-shaped through hole is matched with the lower part of the nozzle; the piston is characterized in that a wave-shaped curved surface is arranged at the upper end of the outer portion of the piston, a limiting step is arranged in the middle of the outer portion of the piston, and the limiting step is matched with the spring.
Preferably, the middle part of the nozzle is provided with a water flow passage, a first water guide sleeve and a second water guide sleeve are arranged below the nozzle, and the first water guide sleeve and the second water guide sleeve are made of flexible materials.
Preferably, the baffle is fixedly arranged at the lower end inside the pneumatic control valve shell, a circular through hole is formed in the middle of the baffle, a second notch is formed in the wall surface of the circular through hole in the middle of the baffle and is an annular groove, a sealing ring is matched in the second notch, and the sealing ring is an O-shaped sealing ring.
The invention also provides an intelligent control method of the intelligent control lubricating system for sewage collection, which comprises the following steps:
step 1: constructing a lubricating system: sequentially connecting a sewage collection station with a pressure stabilizing tank, a pneumatic control valve and a composite vacuum rotor pump through pipelines, and externally connecting the pneumatic control valve with a tap water source;
step 2: the water source of tap water is controlled by a pneumatic control valve, and the automatic water adding lubrication of the composite vacuum rotor pump is completed.
The invention has the beneficial effects that: the invention can automatically add water when the negative pressure changes due to the decrease of lubrication, complete the lubrication of the vacuum rotor pump and ensure the stable operation of the system.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a system structure of an intelligent control lubrication system and an intelligent control method for sewage collection according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;
fig. 3 is a schematic structural diagram of a pneumatic control valve of an intelligent control lubricating system and an intelligent control method for sewage collection.
In the figure: 1-sewage collection station, 2-first pipeline, 3-stop valve, 4-pressure gauge, 5-second pipeline, 6-surge tank, 7-third pipeline, 8-pneumatic control valve shell, 9-piston, 10-nozzle, 11-spring, 12-partition, 13-sealing ring, 14-fourth pipeline, 15-fifth pipeline, 16-composite vacuum rotor pump, 17-sixth pipeline, 18-seventh pipeline, 19-first notch, 20-water flow channel, 21-first water guide sleeve, 22-second water guide sleeve, 23-special-shaped through hole, 24-wave-shaped curved surface, 25-limit step, 26-first pipe connector, 27-second pipe connector and 28-second notch.
[ detailed description ] embodiments
Referring to fig. 1, 2 and 3, the sewage treatment device comprises a sewage collection station 1, wherein a first pipeline 2 is arranged in the sewage collection station 1, a stop valve 3 and a pressure gauge 4 are arranged between the first pipelines 2, the right end of the first pipeline 2 penetrates out of the sewage collection station 1 and then is connected with a pressure stabilizing tank 6 through a second pipeline 5, the upper end of the pressure stabilizing tank 6 is connected with a pneumatic control valve housing 8 through a third pipeline 7, a piston 9 is arranged in the pneumatic control valve housing 8, the upper end of the piston 9 is matched with a nozzle 10, and the nozzle 10 is fixed above the interior of the pneumatic control valve housing 8; the lower end of the piston 9 is sleeved with a spring 11, the lower end face of the spring 11 is in contact with a partition plate 12, the partition plate 12 is fixed below the inner part of the pneumatic control valve shell 8, a sealing ring 13 is embedded in the middle of the partition plate 12, and the piston 9 is matched with the inner ring of the sealing ring 13; the upper end of the pneumatic control valve shell 8 is connected with a tap water source through a fourth pipeline 14; the upper right end of the pneumatic control valve shell 8 is connected with a combined type vacuum rotor pump 16 through a fifth pipeline 15, the upper and lower ends of the left end of the combined type vacuum rotor pump 16 are connected with the lower end of the pneumatic control valve shell 8 through a sixth pipeline 17, and the middle of the left end of the combined type vacuum rotor pump 16 is connected with the pressure stabilizing tank 6 through a seventh pipeline 18.
Specifically, the upper end of the inner wall of the pneumatic control valve shell 8 is provided with a first notch 19, the first notch 19 is an annular groove, and the nozzle 10 is embedded in the first notch 19.
Specifically, a first pipe connector 26 is mounted at the upper right end of the pneumatic control valve housing 8, and the first pipe connector 26 is connected with the composite vacuum rotor pump 16 through a fifth pipeline 15; the left lower end of the pneumatic control valve shell 8 is provided with a second pipe joint member 27, and the second pipe joint member 27 is connected with the surge tank 6 through a third pipeline 7.
Specifically, the middle part of the piston 9 is provided with a special-shaped through hole 23, the special-shaped through hole 23 consists of an upper inverted frustum hole, a middle small cylindrical hole and a lower long cylindrical hole, and the upper end of the special-shaped through hole 23 is matched with the lower part of the nozzle 10; the outer upper end of piston 9 is equipped with wave type curved surface 24, and the outer middle part of piston 9 is equipped with spacing step 25, and spacing step 25 cooperatees with spring 11.
Specifically, the middle of the nozzle 10 is provided with a water flow passage 20, a first water guide sleeve 21 and a second water guide sleeve 22 are arranged below the nozzle 10, and the first water guide sleeve 21 and the second water guide sleeve 22 are made of flexible materials.
Specifically, the partition plate 12 is fixedly arranged at the lower end inside the pneumatic control valve housing 8, a circular through hole is formed in the middle of the partition plate 12, a second notch 28 is formed in the wall surface of the circular through hole in the middle of the partition plate 12, the second notch 28 is an annular groove, a sealing ring 13 is matched in the second notch 28, and the sealing ring 13 is an O-shaped sealing ring.
The invention also comprises the following steps:
step 1: constructing a lubricating system: the sewage collecting station 1 is sequentially connected with a pressure stabilizing tank 6, an air control valve and a composite vacuum rotor pump 16 through pipelines, and the air control valve is externally connected with a tap water source;
step 2: the automatic water adding and lubricating of the composite vacuum rotor pump 16 are completed by controlling the water source of running water through a pneumatic control valve.
The working process of the invention is as follows:
the intelligent control lubricating system and the intelligent control method for sewage collection are explained in the working process by combining the attached drawings.
The rotor of the combined type vacuum rotor pump 16 can generate certain negative continuously in the running process; when the water for lubricating the inner cavity of the composite vacuum rotor pump 16 is reduced, the gap lubrication in the rotor pump is deteriorated, and the vacuum capacity is reduced; this is due to the liquid film seal failure, requiring water that is urgently needed for lubrication; when the vacuum capacity is reduced, the absolute pressure is increased, and the air pressure at the position is the same as the upper end of a piston 9 in the pneumatic control valve; the pressure stabilizing tank 6 is very large, the pressure in the pressure stabilizing tank 6 is stable, and the air pressure in the pressure stabilizing tank is the same as the lower end of a piston 9 in the pneumatic control valve; therefore, the piston 9 in the pneumatic control valve moves downwards under the action of pressure difference, the nozzle 10 is opened, the tap water source introduced by the nozzle 10 is sprayed into the vacuum rotor pump 16, and the lubrication of the vacuum rotor pump 16 is completed; the lubricated vacuum rotor pump 16 forms a liquid film again, the vacuum capacity is recovered, the absolute pressure is reduced, the piston 9 loses the force of air pressure difference, the piston 9 moves upwards under the action of the elastic force of the spring 11, the nozzle 10 is sealed, and therefore the tap water source is cut off.
According to the invention, when the negative pressure changes due to the decrease of lubrication, water can be automatically added to complete the lubrication of the vacuum rotor pump, so that the stable operation of the system is ensured.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a lubricated system is controlled to sewage collection intelligence which characterized in that: the device comprises a sewage collecting station (1), wherein first pipelines (2) are arranged in the sewage collecting station (1), a stop valve (3) and a pressure gauge (4) are arranged between the first pipelines (2), the right end of the first pipeline (2) penetrates out of the sewage collecting station (1) and then is connected with a pressure stabilizing tank (6) through a second pipeline (5), the upper end of the pressure stabilizing tank (6) is connected with a pneumatic control valve shell (8) through a third pipeline (7), a piston (9) is arranged inside the pneumatic control valve shell (8), the upper end of the piston (9) is matched with a nozzle (10), and the nozzle (10) is fixed above the inside of the pneumatic control valve shell (8); the lower end of the piston (9) is sleeved with a spring (11), the lower end face of the spring (11) is in contact with a partition plate (12), the partition plate (12) is fixed below the inner part of the pneumatic control valve shell (8), a sealing ring (13) is embedded in the middle of the partition plate (12), and the piston (9) is matched with the inner ring of the sealing ring (13); the upper end of the pneumatic control valve shell (8) is connected with a tap water source through a fourth pipeline (14); the upper right end of the pneumatic control valve shell (8) is connected with the combined type vacuum rotor pump (16) through a fifth pipeline (15), the upper and lower ends of the left end of the combined type vacuum rotor pump (16) are connected with the lower end of the pneumatic control valve shell (8) through a sixth pipeline (17), and the middle of the left end of the combined type vacuum rotor pump (16) is connected with the pressure stabilizing tank (6) through a seventh pipeline (18).
2. The intelligent-control sewage collection lubricating system as defined in claim 1, wherein: the upper end of the inner wall of the pneumatic control valve shell (8) is provided with a first notch (19), the first notch (19) is an annular groove, and a nozzle (10) is embedded in the first notch (19).
3. The intelligent-control sewage collection lubricating system as defined in claim 1, wherein: a first pipe connector (26) is installed at the upper right end of the pneumatic control valve shell (8), and the first pipe connector (26) is connected with the composite vacuum rotor pump (16) through a fifth pipeline (15); and a second pipe joint piece (27) is installed at the left lower end of the pneumatic control valve shell (8), and the second pipe joint piece (27) is connected with the surge tank (6) through a third pipeline (7).
4. The intelligent-control sewage collection lubricating system as defined in claim 1, wherein: the middle part of the piston (9) is provided with a special-shaped through hole (23), the special-shaped through hole (23) consists of an upper inverted frustum hole, a middle small cylindrical hole and a lower long cylindrical hole, and the upper end of the special-shaped through hole (23) is matched with the lower part of the nozzle (10); the piston (9) outside upper end is equipped with wave type curved surface (24), and piston (9) outside middle part is equipped with spacing step (25), and spacing step (25) cooperate with spring (11).
5. The intelligent-control sewage collection lubricating system as defined in claim 1, wherein: the water guide structure is characterized in that a water flow channel (20) is arranged in the middle of the nozzle (10), a first water guide sleeve (21) and a second water guide sleeve (22) are arranged below the nozzle (10), and the first water guide sleeve (21) and the second water guide sleeve (22) are made of flexible materials.
6. The intelligent-control sewage collection lubricating system as defined in claim 1, wherein: the air control valve is characterized in that the partition plate (12) is fixedly arranged at the lower end inside the air control valve shell (8), a circular through hole is formed in the middle of the partition plate (12), a second notch (28) is formed in the wall surface of the circular through hole in the middle of the partition plate (12), the second notch (28) is an annular groove, a sealing ring (13) is matched in the second notch (28), and the sealing ring (13) is an O-shaped sealing ring.
7. The intelligent control method of the intelligent control lubrication system for sewage collection as claimed in claim 1, wherein: the intelligent control method comprises the following steps:
step 1: constructing a lubricating system: a sewage collecting station (1) is sequentially connected with a pressure stabilizing tank (6), an air control valve and a composite vacuum rotor pump (16) through pipelines, and the air control valve is externally connected with a tap water source;
step 2: the automatic water adding and lubricating of the composite vacuum rotor pump (16) is completed by controlling the water source of tap water through a pneumatic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010298764.9A CN111486095B (en) | 2020-04-16 | 2020-04-16 | Intelligent control lubricating system and intelligent control method for sewage collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010298764.9A CN111486095B (en) | 2020-04-16 | 2020-04-16 | Intelligent control lubricating system and intelligent control method for sewage collection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111486095A CN111486095A (en) | 2020-08-04 |
| CN111486095B true CN111486095B (en) | 2021-12-03 |
Family
ID=71795138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010298764.9A Active CN111486095B (en) | 2020-04-16 | 2020-04-16 | Intelligent control lubricating system and intelligent control method for sewage collection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111486095B (en) |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134856A (en) * | 1991-05-21 | 1992-08-04 | Frick Company | Oil pressure maintenance for screw compressor |
| CN1399075A (en) * | 2001-07-27 | 2003-02-26 | 大晃机械工业株式会社 | Spiral rotor-type wet vacuum pump |
| GB2447627B (en) * | 2007-03-20 | 2011-05-25 | Ford Global Tech Llc | A check valve for a vacuum pump |
| US9080569B2 (en) * | 2009-01-22 | 2015-07-14 | Gregory S. Sundheim | Portable, rotary vane vacuum pump with automatic vacuum breaking arrangement |
| CN101560976B (en) * | 2009-04-30 | 2012-01-04 | 北京曌越真空技术有限公司 | Energy-saving and environment-friendly vacuum device applied to petrochemical engineering and mixed arene separating system |
| DE102012218270A1 (en) * | 2012-10-08 | 2014-05-15 | Robert Bosch Gmbh | Cold start valve and hydraulic arrangement with such a cold start valve |
| ITTO20121157A1 (en) * | 2012-12-27 | 2014-06-28 | Vhit Spa | LUBRICATION SYSTEM FOR A ROTARY VACUUM PUMP. |
| CN203442252U (en) * | 2013-08-08 | 2014-02-19 | 干平 | Pneumatic drain valve |
| CN103899828A (en) * | 2014-03-27 | 2014-07-02 | 超达阀门集团股份有限公司 | Single-acting pneumatic device with adjustment and fault security functions |
| CN105276268A (en) * | 2014-07-24 | 2016-01-27 | 陈俊 | Pneumatic diaphragm control valve |
| US10696280B2 (en) * | 2015-03-25 | 2020-06-30 | Pierburg Pump Technology Gmbh | Vacuum pump with rotor shaft supported by friction bearings |
| CN108533504A (en) * | 2018-06-08 | 2018-09-14 | 安徽阿莫斯泵业有限公司 | Jet stream diversion assists self priming pump |
| CN109441802A (en) * | 2018-10-18 | 2019-03-08 | 东北大学 | A kind of dry vacuum pump work system, soil pick-up work system and suction work system |
| CN110541939B (en) * | 2019-09-20 | 2024-07-30 | 浙江肯特科技股份有限公司 | Quick recovery system of food level surface fabric stain |
| CN110608294B (en) * | 2019-10-12 | 2024-06-04 | 特瑞斯能源装备股份有限公司 | Pneumatic actuating mechanism |
| CN110886890B (en) * | 2019-12-02 | 2022-03-22 | 厚力德机器（杭州）有限公司 | Vacuum water feeding valve |
| CN110939568B (en) * | 2019-12-02 | 2021-10-08 | 厚力德机器（杭州）有限公司 | Water adding device and method based on negative-pressure pneumatic vacuum system without water ring |
-
2020
- 2020-04-16 CN CN202010298764.9A patent/CN111486095B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111486095A (en) | 2020-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201530466U (en) | Self-returning oil buoyancy adjustment device for underwater robots | |
| CN111486095B (en) | Intelligent control lubricating system and intelligent control method for sewage collection | |
| CN108278487B (en) | Switching device for free piston shock tunnel compression pipe and inflation device | |
| CN102599822A (en) | Safety valve of coffee maker | |
| CN207945063U (en) | A kind of supercharging purification diaphragm pump | |
| CN209212969U (en) | A kind of sealing device of hydraulic pump | |
| CN203477496U (en) | Pressure reducing valve device | |
| CN216713208U (en) | Air pressure water supply tank convenient for air pressure supplement | |
| CN215806233U (en) | Pneumatic control oil pressing system | |
| CN211059387U (en) | Electro-hydraulic actuator | |
| CN116292177A (en) | A high-speed ionic liquid compressor | |
| CN213144708U (en) | Gas compressor | |
| CN220598569U (en) | Totally-enclosed environment-friendly energy storage type water supply equipment | |
| CN2198426Y (en) | Liquid-sealed water pump shaft seal device | |
| CN202156916U (en) | Filling and sealing device for volatile liquid | |
| CN220285922U (en) | A high-speed ionic liquid compressor | |
| CN215237746U (en) | Vacuum pumping device | |
| CN218718939U (en) | Leakage-proof valve with protection mechanism | |
| CN211449660U (en) | Wisdom water pressure equipment | |
| CN215762189U (en) | Packing is with automatic tight device that expands | |
| CN111425398B (en) | Water ring vacuum elastomer rotor pump self-lubricating system and method | |
| CN217736566U (en) | Leak protection mechanism of water pump connector | |
| CN220152089U (en) | Oil way throttle valve for hydraulic station | |
| CN212838352U (en) | Vacuum pump improved structure for improving vacuum degree | |
| CN111395485B (en) | Intelligent control interface valve for sewage collection and variable control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211215 Address after: No. 603-2, Kangxin Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province 310000 Patentee after: HOULIDE MACHINE (HANGZHOU) Co.,Ltd. Patentee after: Hangzhou buffalo environment Co., Ltd Address before: Room 502c-3, building 2, No.3, Taiji Road, economic development zone, Yuhang District, Hangzhou City, Zhejiang Province 310000 Patentee before: HOULIDE MACHINE (HANGZHOU) Co.,Ltd. |