CN111828282A - Starting operation method of air compressor in severe cold environment - Google Patents
Starting operation method of air compressor in severe cold environment Download PDFInfo
- Publication number
- CN111828282A CN111828282A CN202010590144.2A CN202010590144A CN111828282A CN 111828282 A CN111828282 A CN 111828282A CN 202010590144 A CN202010590144 A CN 202010590144A CN 111828282 A CN111828282 A CN 111828282A
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- CN
- China
- Prior art keywords
- air compressor
- temperature
- switch
- fan motor
- unloading
- 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.)
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Classifications
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- 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
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
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- 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
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/066—Cooling by ventilation
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- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a starting operation method of an air compressor in a severe cold environment, which analyzes the use condition of the air compressor of a rotary drill in detail under normal temperature and extremely cold conditions according to the use current situation of the rotary drill, and points out the defects of the original method and invents a new starting method by introducing the original starting method of the air compressor because the fault of the main air compressor of the rotary drill under the extremely cold condition is the actual difficulty in working and is difficult to avoid.
Description
Technical Field
The invention relates to the technical field of rotary drill rigs, in particular to a starting and running method of an air compressor in a severe cold environment.
Background
The air compressor is an important component of the roller bit drilling machine and can be called the heart of the drilling machine. Air compressed by the air compressor is supplied to the bottom of the hole through the drill rod to discharge hole bottom rock slag and cool the roller bit, and the through blast hole provides a space for loading explosives for mine blasting. If the air compressor fails during the operation of the roller cone drilling machine, the production organization is greatly adversely affected. The external environment can have a significant impact on the normal operation of the air compressor, wherein the impact on the temperature is particularly significant. An air compressor used by a deslagging system of a roller-bit rig of a certain company is an oil-injection screw compressor (air compressor for short) produced by England. In the Darlhamaumin Anhui union of northern Mongolian Bitou city, the annual average temperature is 3.4 ℃, the winter is abnormal cold, and the lowest temperature can reach-40 ℃. The design working environment temperature of the standard air compressor is 1.7-46 ℃. Therefore, the situation that the air compressor cannot be started according to a normal program when the ambient temperature is too low frequently occurs in the using process. Therefore, a safe and effective operation method is required to be adopted to quickly start the air compressor, so that the safety of personnel and equipment is ensured to the maximum extent.
The normal starting operation method of the air compressor adopted at present is to carefully check before starting the air compressor, confirm that no abnormity exists and drive an unloading switch of a cab operation console to an unloading position. The air compressor is started by pressing a START button on a control panel, and the radiator fan motor is started accordingly. After the main motor completes Y-delta conversion, a driver leaves the operating room and carries out loading operation according to the punching requirement, after punching is finished, an unloading switch of the operating platform is switched to an unloading position, the air compressor is unloaded and operated, and the fan motor is continuously operated without stopping.
Disclosure of Invention
The invention aims to provide a method for improving the problem that an air compressor cannot be started in a severe cold environment, which can reduce the rotating speed of a cooling fan and increase the checking and starting procedures of a starting process under the condition of unchanged rated voltage by changing the wiring mode of a motor of the cooling fan, thereby solving the problem that the air compressor is difficult to start under the severe cold condition.
In order to solve the technical problems, the invention adopts the following technical scheme:
a starting operation method of an air compressor in a severe cold environment comprises the following steps:
the fan motor switch of the air compressor is improved and arranged outside the control cabinet, so that the air compressor can be conveniently switched on and off at any time, and the occurrence of electric shock accidents is avoided;
when the air compressor runs in winter in low-temperature weather, the wiring of a fan motor of the air compressor is changed from the original triangular connection to star connection so as to avoid excessive cooling;
and carefully checking before starting the main air compressor, confirming that no abnormity exists, driving an unloading switch of a cab operating console to an unloading position, disconnecting a fan motor control switch, and pressing a control panel start button to start the air compressor.
Further, the method also comprises the following steps: observing the running condition of the air compressor through a display, and confirming the temperature of the oil outlet of the cooler when the temperature of the air compressor reaches 75-80 ℃ during unloading; if the outlet temperature is lower than 50 ℃, the air compressor is enabled to continuously operate to 90 ℃ in an unloading state, the temperature of the oil outlet of the cooler is confirmed again, and the air compressor is enabled to operate in a loading mode when the outlet temperature is 60-70 ℃; after loading operation, when the exhaust temperature of the air compressor rises to 90-95 ℃, a fan control switch is switched on, and after the displayed data is checked to be normal, the air compressor leaves the mechanical chamber for normal operation; after one hole is penetrated, the switch of the fan motor is turned off at any time according to the actual condition, and the high-temperature alarm caused by excessive cooling is avoided.
Compared with the prior art, the invention has the beneficial technical effects that:
arrange fan motor switch in the main air compressor rack outside, go closed fan switch again after the host computer starts, can not take place to electrocute and electric arc burn accident, ensured operating personnel's safety.
Through changing the mode of connection of cooling fan motor, under the unchangeable condition of rated voltage, do not change the constitutional structure of equipment itself, reduced cooling fan's rotational speed, improved the performance of air compressor machine under the severe cold environment.
Detailed Description
A starting operation method of an air compressor in a severe cold environment comprises the following steps: the air compressor fan motor switch is improved and is arranged outside the control cabinet, so that the air compressor fan motor switch can be conveniently switched on and off at any time, and electric shock accidents are avoided. During operation in winter in low-temperature weather, the connection of the fan motor is changed from the original triangular connection to the star connection, at the moment, the phase voltage of each phase of stator winding of the motor is reduced to 1/V3/380 to 220V, the motor torque is reduced to 1/3 of the rated torque, and the rotating speed is reduced to 970/V3 to 560r/min, so that excessive cooling is avoided. Carefully checking before starting the main air compressor, confirming that no abnormity exists, driving an unloading switch of a cab operation console to an unloading position, disconnecting a fan motor control switch, pressing a START button of a control panel to START the air compressor, observing the running condition of the air compressor through a display, and confirming the temperature of an oil outlet of a cooler when the temperature of the air compressor reaches about 75-80 ℃ during unloading. And if the outlet temperature is lower than 50 ℃, the air compressor is enabled to continuously operate to 90 ℃ in an unloading state, the temperature of the oil outlet of the cooler is confirmed again, and the air compressor is enabled to operate in a loading mode when the outlet temperature is 60-70 ℃. After the loading operation, when the exhaust temperature of the air compressor rises to 90-95 ℃, a fan control switch is switched on, and after the displayed data is checked to be normal, the air compressor leaves the mechanical room to perform normal operation. After one hole is penetrated, the switch of the fan motor is turned off at any time according to the actual condition, and the high-temperature alarm caused by excessive cooling is avoided.
By adopting the starting and running method of the air compressor in the severe cold environment, the normal starting of the air compressor in the winter cold weather can be ensured, the occurrence of high-temperature alarm faults of the air compressor in the severe cold weather in the north in winter is effectively avoided, and the normal operation of equipment is ensured.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (2)
1. The utility model provides an air compressor machine starts operation method under severe cold environment which characterized in that includes:
the fan motor switch of the air compressor is improved and arranged outside the control cabinet, so that the air compressor can be conveniently switched on and off at any time, and the occurrence of electric shock accidents is avoided;
when the air compressor runs in winter in low-temperature weather, the wiring of a fan motor of the air compressor is changed from the original triangular connection to star connection so as to avoid excessive cooling;
and carefully checking before starting the main air compressor, confirming that no abnormity exists, driving an unloading switch of a cab operating console to an unloading position, disconnecting a fan motor control switch, and pressing a control panel start button to start the air compressor.
2. The method for starting and operating the air compressor in the severe cold environment of the air compressor as claimed in claim 1, further comprising: observing the running condition of the air compressor through a display, and confirming the temperature of the oil outlet of the cooler when the temperature of the air compressor reaches 75-80 ℃ during unloading; if the outlet temperature is lower than 50 ℃, the air compressor is enabled to continuously operate to 90 ℃ in an unloading state, the temperature of the oil outlet of the cooler is confirmed again, and the air compressor is enabled to operate in a loading mode when the outlet temperature is 60-70 ℃; after loading operation, when the exhaust temperature of the air compressor rises to 90-95 ℃, a fan control switch is switched on, and after the displayed data is checked to be normal, the air compressor leaves the mechanical chamber for normal operation; after one hole is penetrated, the switch of the fan motor is turned off at any time according to the actual condition, and the high-temperature alarm caused by excessive cooling is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010590144.2A CN111828282A (en) | 2020-06-24 | 2020-06-24 | Starting operation method of air compressor in severe cold environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010590144.2A CN111828282A (en) | 2020-06-24 | 2020-06-24 | Starting operation method of air compressor in severe cold environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111828282A true CN111828282A (en) | 2020-10-27 |
Family
ID=72898796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010590144.2A Pending CN111828282A (en) | 2020-06-24 | 2020-06-24 | Starting operation method of air compressor in severe cold environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111828282A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0865147A1 (en) * | 1997-06-01 | 1998-09-16 | Jakob, Karl, Dipl.-Ing.(FH) | Electric fan |
| CN202798547U (en) * | 2012-08-03 | 2013-03-13 | 宁夏银星能源股份有限公司 | Fan motor control device of doubly-fed asynchronous wind generating set |
| CN205689434U (en) * | 2016-06-06 | 2016-11-16 | 德州市亿立方机械有限公司 | A kind of device that can press air compressor in cold district quickly starts |
| CN109863689A (en) * | 2016-10-31 | 2019-06-07 | 三菱电机株式会社 | Motor drive and air conditioner |
-
2020
- 2020-06-24 CN CN202010590144.2A patent/CN111828282A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0865147A1 (en) * | 1997-06-01 | 1998-09-16 | Jakob, Karl, Dipl.-Ing.(FH) | Electric fan |
| CN202798547U (en) * | 2012-08-03 | 2013-03-13 | 宁夏银星能源股份有限公司 | Fan motor control device of doubly-fed asynchronous wind generating set |
| CN205689434U (en) * | 2016-06-06 | 2016-11-16 | 德州市亿立方机械有限公司 | A kind of device that can press air compressor in cold district quickly starts |
| CN109863689A (en) * | 2016-10-31 | 2019-06-07 | 三菱电机株式会社 | Motor drive and air conditioner |
Non-Patent Citations (1)
| Title |
|---|
| 刘林江等: "喷油螺杆空压机在高寒环境下的运行探讨", 《矿山机械》 * |
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| PB01 | Publication | ||
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Application publication date: 20201027 |