CN201284743Y - Exhaust control device of screw air compressor - Google Patents
Exhaust control device of screw air compressor Download PDFInfo
- Publication number
- CN201284743Y CN201284743Y CNU2008203025246U CN200820302524U CN201284743Y CN 201284743 Y CN201284743 Y CN 201284743Y CN U2008203025246 U CNU2008203025246 U CN U2008203025246U CN 200820302524 U CN200820302524 U CN 200820302524U CN 201284743 Y CN201284743 Y CN 201284743Y
- Authority
- CN
- China
- Prior art keywords
- exhaust
- pressure
- valve
- compressor
- air compressor
- 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.)
- Expired - Fee Related
Links
- 239000003921 oil Substances 0.000 abstract description 20
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 238000009530 blood pressure measurement Methods 0.000 abstract 3
- 239000000314 lubricant Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a can reduce screw air compressor machine exhaust control device of screw air compressor machine exhaust pressure, the device include pressure measurement device and be provided with the blast pipe of exhaust trip valve, the blast pipe both ends respectively with oil and gas separator export and outlet pipe connection, pressure measurement device sets up in the oil and gas separator exit, the signal control that the exhaust trip valve sent by pressure measurement device. The exhaust pressure can be reduced, the load of the compressor equipment is reduced, the air supply energy consumption and the lubricating oil consumption are reduced, the service life of the equipment is prolonged, and the screw type air compressor is particularly suitable for screw type air compressors.
Description
Technical field
The utility model relates to a kind of exhaust end base of oil injection threaded bolt formula air compressor, especially a kind of exhaust controlling method of screw-rod air compressor.
Background technique
At present, screw air compressor is little owing to vibration, power of motor is low, noise is low, efficient is high, exhaust pressure is stable, rate of fault is low, simple installation, be convenient to advantage such as maintenance and obtained application widely.
The critical piece of screw-rod air compressor is compressor, deaerator.Compressor is air-breathing by air-breathing filter and aspirating air pipe, lubricant oil injects air compression chamber simultaneously, compressor is cooled off and screw rod and bearing are lubricated, the fuel-air mixture body that compression produces enters in the deaerator through the deaerator inlet pipeline, oil is separated from oil gas mixture, pressurized air after the oil removing then enters outlet conduit through minimum pressure valve after filtration, supplies with each and uses with gas unit.Air compression chamber must keep certain pressure, promptly keeps certain pressure reduction power as lubrication oil circulation between deaerator and compressor.When guaranteeing that even compressor is interrupted air feed work, also supplying lubricating oil incessantly guarantees the circulation of lubricant oil, guarantees device security, and existing screw-rod air compressor is all by minimum pressure valve control exhaust, but this kind exhaust controlling method has following defective:
In a, the normal air feed process of compressor, after pressurized air that deaerator filters must be by minimum pressure valve, just can enter outlet conduit, minimum pressure valve adopts the sealing of spring prestressing force, when flowing through minimum pressure valve, pressurized air can produce the pressure loss of 5～6kPa, cause Compressor Discharge Pressure to raise, operation energy consumption increases;
B, because Compressor Discharge Pressure raises, cause the compressor apparatus load to increase the weight of, increased the running wastage of compressor, reduced the working life of equipment;
C, because Compressor Discharge Pressure raises, cause the deaerator working pressure to rise, the filtering effect of deaerator filter core reduces, and has increased the lubrication oil consumption of compressor operating.
The model utility content
In order to overcome the higher deficiency of Compressor Discharge Pressure of existing screw-rod air compressor, technical problem to be solved in the utility model provides a kind of screw-rod air compressor exhaust control device that can reduce the Compressor Discharge Pressure of rod-type air compressor.
The technological scheme that its technical problem that solves the utility model adopts is: the screw-rod air compressor exhaust control device, this device is arranged on after the deaerator, this device comprises pressure-detecting device and is provided with the outlet pipe of exhaust cut-off valve, the outlet pipe two ends are connected with outlet conduit with the deaerator outlet respectively, pressure-detecting device is arranged on the deaerator outlet port, the SC sigmal control that the exhaust cut-off valve is sent by pressure-detecting device.
The beneficial effects of the utility model are: when the exhaust pressure of compressor is elevated to the unlatching value, pressure-detecting device is opened the exhaust cut-off valve, as main exhaust passage, the pressurized air of generation directly enters outlet conduit by this exhaust passage with the exhaust pilot line.Because of the flow losses of this exhaust passage are very little, thus exhaust pressure can be reduced, and alleviated the machine utilization of compressor, and reduced the consumption of air feed energy consumption and lubricant oil, prolonged the working life of equipment.In addition, can on the inlet/outlet node at exhaust pilot line two ends, be parallel with another safety line, described safety line is provided with minimum pressure valve, the cracking pressure of minimum pressure valve is less than described unlatching value, under situations such as exhaust pilot line inefficacy, also can guarantee minimum exhaust pressure, guarantee the circulation of lubricant oil, guarantee device security.Owing to have an aforesaid advantage, the utility model has at fuel injection helical lobe compressor or other on equipment of similar vent systems important application prospects is arranged, and uses the utility model can reduce exhaust pressure 5～6kPa.
Description of drawings
Fig. 1 is existing screw-rod air compressor and venting gas appliance schematic representation thereof.
Fig. 2 is screw-rod air compressor of the present utility model and exhaust control device schematic representation thereof.
Be labeled as 1-compressor, 2-aspirating air pipe among the figure, 3-air draught filter, 4-venting check valve, 5-deaerator inlet pipeline, the 6-minimum pressure valve, 7-outlet conduit, 8-exhaust cut-off valve, the 9-pressure-detecting device, the 10-deaerator, the outlet of 10a-deaerator, 11-outlet pipe, A import node, the B-Egress node.
Filled arrows is depicted as airflow direction among the figure.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 2, screw-rod air compressor exhaust control device of the present utility model, this device is arranged on after the deaerator 10, this device comprises pressure-detecting device 9 and is provided with the outlet pipe 11 of exhaust cut-off valve 8, outlet pipe 11 two ends are connected with outlet conduit 7 with deaerator outlet 10a respectively, pressure-detecting device 9 is arranged on deaerator outlet 10a place, the SC sigmal control that exhaust cut-off valve 8 is sent by pressure-detecting device 9.Exhaust cut-off valve 8 is in closed condition under outage state; during work; reach the unlatching value if pressure-detecting device 9 detects exhaust pressure, then exhaust cut-off valve 8 is opened, and pressurized air enters outlet conduit 7 with to gas unit air feed; if detecting exhaust pressure, pressure-detecting device 9 is worth less than unlatching; then exhaust cut-off valve 8 cuts out, and ends air feed, during shutdown; earlier exhaust cut-off valve 8 cuts out, carry out the shutdown operation of compressor 1 again.
When exhaust pressure maintain the unlatching value and on the time, pressurized air directly enters outlet conduit by the exhaust pilot line, there has not been the pressure loss during exhaust at self-controlled type minimum pressure valve 6 places, can reduce exhaust pressure, and alleviated the machine utilization of compressor 1, reduce the consumption of air feed energy consumption and lubricant oil, prolonged the working life of equipment; When exhaust pressure was worth less than unlatching, not exhaust guaranteed minimum exhaust pressure, guaranteed the circulation of lubricant oil, guaranteed device security.
The sealing of exhaust pilot line or connection, the exhaust cut-off valve opens or closes in other words, the method of available automatically controlled, gas control, hydraulic control even realizes, for example realize by the on-off valve that gas control or hydraulic control are set on the exhaust pilot line, for the utility model, as long as avoid using the minimum pressure valve of self-controlled types such as spring prestressing force to be used as gas exhausting valve, just avoided the pressure loss at the minimum pressure valve place, hang down Compressor Discharge Pressure thereby can descend, promptly reached the purpose of this utility model in the identical condition of compressor horsepower.
If the exhaust pressure fluctuation takes place in the working procedure of compressor 1, then when exhaust pressure during less than the unlatching value and greater than the cracking pressure of minimum pressure valve 6, exhaust cut-off valve 8 cuts out, pressurized air enters outlet conduit 7 through minimum pressure valve 6, continue air feed, when exhaust pressure reached the unlatching value once more, exhaust cut-off valve 8 was opened once again, and pressurized air directly enters outlet conduit 7 through the exhaust pilot line again.
Better scheme is, is parallel with minimum pressure valve 6 on inlet/outlet node A, the B at exhaust cut-off valve 8 two ends, and the cracking pressure of minimum pressure valve 6 is less than described unlatching value.At this moment, minimum pressure valve 6 is as the safety valve that guarantees lubrication oil circulation, like this, when normal air feed continuously, avoided the pressure loss, if when abnormal conditions such as exhaust pilot line inefficacy take place, also can guarantee minimum exhaust pressure, guarantee the circulation of lubricant oil, guarantee device security.
Embodiment:
As shown in Figure 1, the working procedure of existing screw-rod air compressor is as follows, compressor 1 is air-breathing by air-breathing filter 3 and aspirating air pipe 2, lubricant oil injects air compression chamber simultaneously, compressor 1 is cooled off and screw rod and bearing are lubricated, the fuel-air mixture body that compression produces is in deaerator inlet pipeline 5 enters deaerator 10, oil is separated from oil gas mixture, pressurized air after the oil removing then enters outlet conduit 7 through minimum pressure valve 6 after filtration, supplies with each and uses with gas unit.
As shown in Figure 2, on existing screw-rod air compressor basis, transform, use screw-rod air compressor exhaust control device of the present utility model, outlet pipe in parallel 11 at minimum pressure valve 6 two ends, outlet pipe is provided with exhaust cut-off valve 8, the opening and closing of exhaust cut-off valve 8 are by pressure-detecting device 9 controls that are arranged on deaerator outlet 10a place, that is: when detected exhaust pressure is worth less than unlatching, exhaust cut-off valve 8 cuts out, outlet pipe 11 is in cut-off state, when detected exhaust pressure reached the unlatching value, exhaust cut-off valve 8 was opened, and outlet pipe 11 is in connected state; The unlatching value of exhaust cut-off valve 8 can be set, and the unlatching value should be higher than the cracking pressure of minimum pressure valve.Exhaust cut-off valve 8 is normally close valves, closes exhaust cut-off valve 8 before shutdown earlier, carries out the shutdown operation of compressor 1 again.
With SE260W-8 type fuel injection helical lobe compressor is example, uses exhaust controlling method of the present utility model and device, and with the vent systems comparison of present use, the annual operating cost of saving of single device can reach 10,000 yuan.
Claims (2)
- [claim 1] screw-rod air compressor exhaust control device, it is characterized in that: this device is arranged on deaerator (10) afterwards, this device comprises pressure-detecting device (9) and is provided with the outlet pipe (11) of exhaust cut-off valve (8), outlet pipe (11) two ends are connected with outlet conduit (7) with deaerator outlet (10a) respectively, pressure-detecting device (9) is arranged on deaerator outlet (10a) and locates the SC sigmal control that exhaust cut-off valve (8) is sent by pressure-detecting device (9).
- [claim 2] screw-rod air compressor exhaust control device as claimed in claim 1 is characterized in that: be parallel with minimum pressure valve (6) on the inlet/outlet node (A, B) at exhaust cut-off valve (8) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203025246U CN201284743Y (en) | 2008-10-22 | 2008-10-22 | Exhaust control device of screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203025246U CN201284743Y (en) | 2008-10-22 | 2008-10-22 | Exhaust control device of screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284743Y true CN201284743Y (en) | 2009-08-05 |
Family
ID=40949728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203025246U Expired - Fee Related CN201284743Y (en) | 2008-10-22 | 2008-10-22 | Exhaust control device of screw air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284743Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109790840A (en) * | 2016-09-21 | 2019-05-21 | 克诺尔商用车制动系统有限公司 | Screw compressor system for commercial vehicle |
-
2008
- 2008-10-22 CN CNU2008203025246U patent/CN201284743Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109790840A (en) * | 2016-09-21 | 2019-05-21 | 克诺尔商用车制动系统有限公司 | Screw compressor system for commercial vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201507500U (en) | Stepping type heating furnace hydraulic balance energy-saving device | |
| CN209129693U (en) | A kind of novel lubricating petrol station system | |
| CN201013559Y (en) | Air-intake lifting valve | |
| CN109209851A (en) | A kind of compressor operation control device | |
| CN201284743Y (en) | Exhaust control device of screw air compressor | |
| CN207364626U (en) | A kind of liquid level automatic adjustment stores oil pressure tank | |
| CN201779019U (en) | Air inlet flow adjusting valve of high-displacement screw air compressor | |
| CN110714804B (en) | Bypass control system suitable for CAES system expansion unit | |
| CN107781154A (en) | The control pressurer system and its control method of a kind of diaphragm type compressor | |
| CN201696276U (en) | Frequency conversion control system for constant-temperature air supply of air compressor | |
| CN106051438A (en) | Knitter table automatic lubricating device and control method | |
| CN206054232U (en) | The adjustable energy-saving air compressor of distributive value | |
| CN203499969U (en) | Air compressor frequency conversion driving system | |
| CN201802626U (en) | Oil supply system of screw compressor | |
| CN101581303A (en) | Screw type refrigerating compressor for ship | |
| CN201680134U (en) | Oxygenator safety protection lubricating oil device | |
| CN212376701U (en) | Structure for maintaining operation of steam feed pump under low-load working condition | |
| CN203717298U (en) | Energy-saving device for air compressor | |
| CN202007758U (en) | Lubricating oil pressure automatic control device for diaphragm compressor | |
| CN208397667U (en) | A kind of lubricating oil station applied to bulb-type hydraulic generating set jacked up with high pressure | |
| CN221170001U (en) | Automatic control system of fixed screw compressor | |
| CN111536549A (en) | Leather bag type self-stabilizing device for fuel oil system | |
| CN104746572A (en) | Full-automatic pipe network pressure-superposed water supply device | |
| CN206902810U (en) | The intelligent stack-press device of one kind water inlet | |
| CN205979109U (en) | Braider mesa automatic lubrication installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: PANGANG GROUP STEEL VANADIUM + TITANIUM CO., LTD. Free format text: FORMER NAME: PANZHIHUA NEW STEEL + VANADIUM CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 617000 science and Technology Department, Pangang village, Xiangyang Village, East District, Panzhihua, Sichuan Patentee after: Pangang Group Steel Vanadium & Titanium Co., Ltd. Address before: 617000 science and Technology Department, Pangang village, Xiangyang Village, East District, Panzhihua, Sichuan Patentee before: Panzhihua New Steel & Vanadium Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20121022 |