CN113154175A - Residual gas recovery and transformation method for WLW-2400B vacuum pump - Google Patents
Residual gas recovery and transformation method for WLW-2400B vacuum pump Download PDFInfo
- Publication number
- CN113154175A CN113154175A CN202110139666.5A CN202110139666A CN113154175A CN 113154175 A CN113154175 A CN 113154175A CN 202110139666 A CN202110139666 A CN 202110139666A CN 113154175 A CN113154175 A CN 113154175A
- Authority
- CN
- China
- Prior art keywords
- residual gas
- vacuum pump
- wlw
- emptying
- gas recovery
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a method for recovering and transforming residual gas of a WLW-2400B vacuum pump, which is characterized in that a compartment vent hole and an oil tank oil filling port are connected with a newly-configured discharge port in a matched pipe manner. DN50 residual gas emptying pipes are configured for the series I and II of the WLW-2400B type vacuum pump and are led to the outside of a factory building for emptying. After transformation, separate chamber vent gas and stuffing box protective gas are separately discharged, and residual gas at an oil filling port of an oil tank is recovered, so that the residual gas of a vacuum pump is intensively recovered and discharged, no CO toxic and harmful gas is given an alarm on site during normal production, the safe operation of equipment is ensured, the safety of operation staff is ensured, the potential safety hazard of operation equipment operation is avoided, the safe operation of a chemical device has great significance, and a solid foundation is laid for safe production.
Description
Technical Field
The invention relates to residual gas emission in the running process of a vacuum pump, relates to a method for eliminating potential safety hazards of starting of running equipment, and particularly relates to a residual gas recovery and transformation method for a WLW-2400B vacuum pump.
Background
The WLW-2400B type reciprocating vertical oilless vacuum pump is a double-cylinder double-acting piston pump. Under the drive of the motor, the rotary motion of the crankshaft is converted into the reciprocating linear motion of the crosshead through a crank block mechanism, and then the linear motion of the crankshaft is transmitted to the piston through the piston rod. The air suction and exhaust are performed simultaneously during the whole working process (because the air suction valve and the air exhaust valve are arranged along the diagonal direction of the working cavity). The air injection amount is 2400L/S, the limit pressure is 2Kpa, the rotating speed is 267r/min, and the power of a matched motor is 220 KW. During the reciprocating motion of the piston rod, CO gas in the cylinder is brought into the separation chamber and the oil tank. The gas in the oil tank is diffused to the atmosphere along the oil filling port of the oil tank. And the explosion-proof nitrogen of separate chamber evacuation pipe and packing box is evacuated and is diffused together, because of packing box nitrogen pressure is greater than CO residual gas pressure in the separate chamber, lead to the unable evacuation of residual gas, take to the oil tank along the piston rod again, diffuse to the atmosphere. Therefore, the toxic gas of CO on site continuously exceeds the standard and is alarmed, the content of CO measured on site is about 70ppm, great potential safety hazards are brought to inspection personnel, overhaul personnel or equipment, and safety accidents are caused in serious cases.
Hazard value table:
disclosure of Invention
The invention provides a method for recovering and transforming residual gas of a WLW-2400B type vacuum pump, which is a method for eliminating residual gas emission in an operating vacuum pump.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for recovering and transforming residual gas of a WLW-2400B type vacuum pump, which is characterized in that DN50 residual gas emptying pipes are configured for series I and II of the WLW-2400B type vacuum pump and lead to the emptying outside a factory building, and the height is about 12 m.
A method for recovering and transforming residual gas of a WLW-2400B type vacuum pump specifically comprises the following steps: connecting the separation cavity emptying port with a pagoda joint on the prefabricated short section; directly connecting an oil filling port of the oil tank with the prefabricated short section; connecting the prefabricated short section with a short section on the seamless steel pipe; and a DN50 residual air emptying pipe is arranged on the seamless steel pipe and is led to the outside of the factory for emptying. The separated discharge of the separated cavity vent gas and the stuffing box protective gas is realized, and the residual gas at the oil filling port of the oil tank is recovered.
Furthermore, the separation cavity evacuation port is connected with the prefabricated short section through an 8mm oxygen band.
The oil tank oil filling port is connected with the prefabricated short section through a 1' rubber pipe.
The height of the DN50 residual air blow pipe is 12 m.
Furthermore, the seamless steel pipe and the DN50 residual gas blow-down pipe are DN50 seamless steel pipe made of S304, and the short section is DN20 seamless steel pipe made of 20 #.
The oxygen band is connected with an oxygen hose clamp.
Compared with the prior art, the invention has the following advantages:
after transformation, separate chamber vent gas and stuffing box protective gas are separately discharged, and residual gas at an oil filling port of an oil tank is recovered, so that the residual gas of a vacuum pump is intensively recovered and discharged, no CO toxic and harmful gas is given an alarm on site during normal production, the safe operation of equipment is ensured, the safety of operation staff is ensured, the potential safety hazard of operation equipment operation is avoided, the safe operation of a chemical device has great significance, and a solid foundation is laid for safe production.
Drawings
FIG. 1 is a schematic representation of a modification of the present invention;
FIG. 2 is a diagram of a vacuum pump oil filler after modification;
FIG. 3 is a diagram of a vacuum pump compartment after modification;
fig. 4 is a recovery diagram of the residual gas of the vacuum pump after modification.
Detailed Description
In the description of the invention, DN50 residual air blow-down pipes are configured aiming at the series I and II, and the residual air blow-down pipes are led to the factory building to be blown down and are about 12m high; separately discharging the compartment vent gas and the stuffing box protective gas; aiming at the recovery of the residual air at the oil filling port of the oil tank, the vent air of the separation chamber and the oil filling port are connected with the newly-configured discharge port through a pipe.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted configuration", "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in conjunction with the specific situation.
Examples
The series I and its pump A are used as examples for illustration. The I series has 14 vacuum pumps, DN50 seamless steel tube about 70m is arranged horizontally from west to east (about 2.6m higher than the ground), the vertical tube is emptied for 12m, DN8 steel tube inserted upwards in the tube is arranged at the position about 500mm of the root of the vertical tube, the steel tube is externally connected with a phi 8mm pagoda joint, and trace nitrogen is introduced during normal operation. DN20 and 100mm short joints are arranged on the seamless steel tube close to the A pump DN 50. Pre-manufacturing DN20 and 100mm short sections, preparing 2 phi 8mm pagoda joints on the short sections, and connecting the emptying ports of the left and right separation chambers of the pump A with 8mm oxygen belts; directly connecting an oil filling port of the pump oil tank A with a prefabricated DN20 and a 100mm short section by using a 1' rubber pipe; and finally, the steel pipe is connected with a DN20 short joint on a DN50 steel pipe. Remarking: all oxygen belts are connected and fixed by an oxygen hose clamp, and the rubber tube is fixed by an iron wire.
Modifying the used materials: about 140m (material: S304) DN50 seamless steel tube, about 6m (material: 20#) DN20 seamless steel tube, 56 pagoda joints, about 80m 1' rubber tube, about 200m 8mm oxygen band and 120 oxygen tube hose clamp.
After the transformation is completed, no CO toxic and harmful gas is used for alarming in the field during normal production, so that the safe operation of equipment is ensured, the safety of workers is ensured, and a solid foundation is laid for safe production.
Claims (7)
1. A residual gas recovery and transformation method for a WLW-2400B vacuum pump is characterized by comprising the following steps: and (4) arranging DN50 residual gas emptying pipes for the series I and II of the WLW-2400B type vacuum pumps, and introducing the residual gas emptying pipes to the outside of the factory building.
2. A WLW-2400B vacuum pump residual gas recovery transformation method as claimed in claim 1, comprising the steps of: connecting the separation cavity emptying port with a pagoda joint on the prefabricated short section; directly connecting an oil filling port of the oil tank with the prefabricated short section; connecting the prefabricated short section with a short section on the seamless steel pipe; and a DN50 residual air emptying pipe is arranged on the seamless steel pipe and is led to the outside of the factory for emptying.
3. A WLW-2400B vacuum pump residual gas recovery transformation method as claimed in claim 2, wherein: the separation cavity evacuation port is connected with the prefabricated short section through an 8mm oxygen band.
4. A WLW-2400B vacuum pump residual gas recovery transformation method as claimed in claim 2, wherein: the oil tank oil filling port is connected with the prefabricated short section through a 1' rubber pipe.
5. The vacuum pump residual gas recovery and reconstruction method according to claim 2, characterized in that: the height of the DN50 residual air blow pipe is 12 m.
6. The vacuum pump residual gas recovery and reconstruction method according to claim 2, characterized in that: the seamless steel pipe and the DN50 residual gas emptying pipe are DN50 seamless steel pipes made of S304, and the short section is DN20 seamless steel pipe made of 20 #.
7. A vacuum pump residual gas recovery modification method according to claim 3, characterized in that: the oxygen band is connected with an oxygen hose clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139666.5A CN113154175A (en) | 2021-02-01 | 2021-02-01 | Residual gas recovery and transformation method for WLW-2400B vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139666.5A CN113154175A (en) | 2021-02-01 | 2021-02-01 | Residual gas recovery and transformation method for WLW-2400B vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113154175A true CN113154175A (en) | 2021-07-23 |
Family
ID=76879173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110139666.5A Pending CN113154175A (en) | 2021-02-01 | 2021-02-01 | Residual gas recovery and transformation method for WLW-2400B vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113154175A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005026603A1 (en) * | 2003-09-09 | 2005-03-24 | Tokyo Gas Company Limited | Method and system for vacuum-purging gas in existing piping or existing tank |
| WO2008054602A2 (en) * | 2006-09-29 | 2008-05-08 | Offshore Joint Services, Inc. | Pipeline field joint coating for wet insulation with improved adhesion |
| CN204024964U (en) * | 2014-07-22 | 2014-12-17 | 马德宝真空设备集团有限公司 | A kind of vertical reciprocating type vacuum pump |
| CN204267355U (en) * | 2014-10-17 | 2015-04-15 | 金川集团股份有限公司 | A kind of turbo compressor sump flue gas recovery device |
| CN206054967U (en) * | 2016-09-23 | 2017-03-29 | 宁夏新凯翔实业有限公司 | A kind of acid mist recovery channel |
| CN208244403U (en) * | 2018-05-29 | 2018-12-18 | 成都升力科技有限责任公司 | A kind of adsorption tower in hydrogen from methyl alcohol equipment |
-
2021
- 2021-02-01 CN CN202110139666.5A patent/CN113154175A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005026603A1 (en) * | 2003-09-09 | 2005-03-24 | Tokyo Gas Company Limited | Method and system for vacuum-purging gas in existing piping or existing tank |
| WO2008054602A2 (en) * | 2006-09-29 | 2008-05-08 | Offshore Joint Services, Inc. | Pipeline field joint coating for wet insulation with improved adhesion |
| CN204024964U (en) * | 2014-07-22 | 2014-12-17 | 马德宝真空设备集团有限公司 | A kind of vertical reciprocating type vacuum pump |
| CN204267355U (en) * | 2014-10-17 | 2015-04-15 | 金川集团股份有限公司 | A kind of turbo compressor sump flue gas recovery device |
| CN206054967U (en) * | 2016-09-23 | 2017-03-29 | 宁夏新凯翔实业有限公司 | A kind of acid mist recovery channel |
| CN208244403U (en) * | 2018-05-29 | 2018-12-18 | 成都升力科技有限责任公司 | A kind of adsorption tower in hydrogen from methyl alcohol equipment |
Non-Patent Citations (1)
| Title |
|---|
| 杨建昌等: "一氧化碳回收工序真空泵放空系统改造", 《化工机械》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116677918B (en) | Well head gas conveying device of coal bed gas drainage and production well and using method | |
| CN113154175A (en) | Residual gas recovery and transformation method for WLW-2400B vacuum pump | |
| CN207000865U (en) | A kind of Pneumatic quantitative formula liquid-filling machine | |
| CN114778407A (en) | Concrete anti-leakage test device | |
| CN207847635U (en) | A kind of pumping installations for pumping out soil series system | |
| CN211118726U (en) | Tool system for filling pearlife | |
| CN210834040U (en) | Gas cylinder inflation and air tightness inspection integrated machine | |
| CN114888008B (en) | Carbon black conveying pipeline dredging robot and working method thereof | |
| CN2806769Y (en) | Coal-bed gas recovery system | |
| CN216081935U (en) | Motor casing gas tightness detection device | |
| CN108760159A (en) | It is a kind of to use SF6Gas carries out the device and method of shell leak detection | |
| CN201560749U (en) | Auxiliary energy-saving evacuating device of pumping unit | |
| CN212819004U (en) | Roots vacuum unit exhaust treatment device | |
| CN107063579A (en) | A kind of novel water cooling wall pressure device | |
| CN110805532B (en) | Ultra-large horizontal axis wind driven generator adopting inflatable pressure-maintaining enhanced tower barrel | |
| CN206974626U (en) | A kind of novel water cooling wall pressure device | |
| CN106906371B (en) | A kind of high temperature dredger for titanium sponge distillation | |
| CN208721340U (en) | A kind of experimental rig of fire product performance | |
| CN206625980U (en) | A kind of horizontal enthalpy-increasing compressor | |
| CN212602448U (en) | High-vacuum-degree carbon electrode extruder vacuumizing equipment | |
| CN110666128A (en) | Airtight vacuum system of high-pressure die casting machine and vacuum pipeline airtightness detection method | |
| CN217376469U (en) | High-efficient extraction system of empty molecular sieve that divides | |
| CN217502667U (en) | Warehouse top path changing valve | |
| CN217783073U (en) | Liftable self-supporting steel chimney | |
| CN217939669U (en) | Molecular sieve pressing device of integrated molecular sieve oxygen generator |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210723 |
|
| RJ01 | Rejection of invention patent application after publication |