CN110030192B - Screw compressor control system - Google Patents
Screw compressor control system Download PDFInfo
- Publication number
- CN110030192B CN110030192B CN201810025815.3A CN201810025815A CN110030192B CN 110030192 B CN110030192 B CN 110030192B CN 201810025815 A CN201810025815 A CN 201810025815A CN 110030192 B CN110030192 B CN 110030192B
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- Prior art keywords
- motor
- compressor
- control system
- rotor
- screw
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- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a screw compressor control system which comprises a compressor body and a motor, wherein the motor is fixedly arranged at the inner bottom of the compressor body, one end of the motor is connected with a rotor box through a coupler, a threaded seat is fixedly arranged at the inner bottom of the compressor body, four corners of the bottom of the rotor box are fixedly connected with fixed disks, the threaded seat and the fixed disks are respectively provided with a screw hole, bolts penetrate through the screw holes of the four threaded seats and the fixed disks, the inner bottom of the compressor body is fixedly connected with a bearing, and the top of the bearing is rotatably connected with a rotating rod. The invention has simple structure and reasonable design, can automatically detect the vibration condition in the compressor, is convenient for workers to know the internal condition of the compressor, greatly facilitates the overhaul of the compressor, solves the problems that the internal condition of the traditional screw compressor is inconvenient to detect and influences the working efficiency, and has strong practicability and easy popularization.
Description
Technical Field
The invention relates to the technical field of screw compressors, in particular to a screw compressor control system.
Background
Screw compressors are also known as screw compressors. The screw compressor cylinder is provided with a pair of intermeshing helical male and female rotors, both of which have a plurality of concave teeth and rotate in opposite directions. The clearance between the rotors and between the casing and the rotors is only 5-10 filaments, the main rotor (also called male rotor or male rotor) is driven by an engine or a motor (mostly driven by the motor), and the other rotor (also called female rotor or female rotor) is driven by an oil film formed by oil injection of the main rotor or driven by synchronous gears at the ends of the main rotor and the female rotor. There is no metal contact in the drive (theoretically). The length and diameter of the rotor determine the displacement (flow) and discharge pressure of the compressor, and the longer the rotor, the higher the pressure; the larger the rotor diameter, the greater the flow. The working cycle can be divided into three processes of suction, compression and exhaust. As the rotor rotates, each pair of intermeshing teeth successively completes the same duty cycle.
When the compressor is used, the positive and negative rotors can vibrate when rotating, the positive and negative rotors are fixed inside the compressor through bolts, the bolts can be damaged after the compressor is used for a long time, the vibration amplitude of the positive and negative rotors can be increased when the compressor is damaged to a certain degree, the normal work of the compressor is influenced, and workers cannot find that the efficiency of the compressor can be greatly reduced.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a screw compressor control system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a screw compressor control system comprises a compressor body and a motor, wherein the motor is fixedly arranged at the inner bottom of the compressor body, one end of the motor is connected with a rotor box through a coupler, a threaded seat is fixedly arranged at the inner bottom of the compressor body, a fixed disc is fixedly connected to the four corners of the bottom of the rotor box, threaded holes are formed in the threaded seat and the fixed disc, bolts are arranged in the threaded holes of the threaded seat and the fixed disc in a penetrating manner, a bearing is fixedly connected to the inner bottom of the compressor body, the top of the bearing is rotatably connected with a rotating rod, a horizontal plate is fixedly connected to the top of the rotating rod, a telescopic rod is movably arranged at one end, far away from the rotating rod, of the horizontal plate in a penetrating manner in a vertical manner, the top and the bottom of the telescopic rod are respectively and fixedly connected with an upper contact disc and a lower contact disc, and, the top of horizontal plate is provided with pressure-sensitive device, the one end of motor is connected with the PLC controller. The pressure sensing device is provided with a sensing button, and the sensing button is positioned right above the upper contact plate.
Preferably, one end of the rotor box is connected with an oil separator, one end of the oil separator is provided with a temperature sensor and a cooler, and the temperature sensor and the cooler are both electrically connected with the PLC.
Preferably, the motor is electrically connected with the PLC controller.
Preferably, the elastic spring is arranged around the telescopic rod, and the lower contact disc is in contact with the top of the bolt.
Preferably, a male rotor and a female rotor are arranged in the rotor box and connected with an output shaft of the motor.
Compared with the prior art, the invention has the beneficial effects that:
1. through the design of fixed disk, screw thread seat, bolt, telescopic link, elastic spring, last contact dish, lower contact dish, PLC controller and forced induction device, can detect the vibrations condition in the compressor automatically, the staff of being convenient for knows the inside condition of compressor, has made things convenient for the maintenance of compressor greatly.
2. Through the design of bearing, dwang, horizontal plate and temperature-sensing ware, the position control of pressure-sensing device of can being convenient for makes things convenient for the staff to overhaul the rotor case, and monitors the inside temperature of compressor, improves its security.
The screw compressor has the advantages of simple structure and reasonable design, solves the problems that the internal condition of the conventional screw compressor is inconvenient to detect and the working efficiency is influenced, and has strong practicability and easy popularization.
Drawings
FIG. 1 is a schematic structural view of a screw seat and a rotor box of a screw compressor control system according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic block diagram of a screw compressor control system according to the present invention.
In the figure: the device comprises a compressor body 1, a motor 2, a rotor box 3, a cooler 4, an oil separator 5, a PLC 6, a pressure sensing device 7, a temperature sensor 8, a threaded seat 9, a fixed disc 10, a bolt 11, a bearing 12, a rotating rod 13, a horizontal plate 14, a telescopic rod 15, an upper contact disc 16, a lower contact disc 17 and an elastic spring 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a screw compressor control system comprises a compressor body 1 and a motor 2, the motor 2 is fixedly arranged at the inner bottom of the compressor body 1, one end of the motor 2 is connected with a rotor box 3 through a coupler, the inner bottom of the compressor body 1 is fixedly provided with a threaded seat 9, four corners of the bottom of the rotor box 3 are fixedly connected with a fixed disk 10, the threaded seat 9 and the fixed disk 10 are respectively provided with a threaded hole, bolts 11 are respectively arranged in the threaded holes of the four threaded seats 9 and the fixed disk 10 in a penetrating manner, the inner bottom of the compressor body 1 is fixedly connected with a bearing 12, the top of the bearing 12 is rotatably connected with a rotating rod 13, the top of the rotating rod 13 is fixedly connected with a horizontal plate 14, one end of the horizontal plate 14, far away from the rotating rod 13, is vertically and movably provided with an expansion link 15, the top and the, and an elastic spring 18 is fixedly welded between the bottom of the lower contact disc 17 and the bottom of the horizontal plate 14, a pressure sensing device 7 is arranged at the top of the horizontal plate 14, and one end of the motor 2 is connected with a PLC 6. Be equipped with the response button on the pressure-sensitive device 7, and the response button is located contact disc 16 and sets up directly over, the one end of rotor case 3 is connected with oil separator 5, the one end of oil separator 5 is equipped with temperature-sensing ware 8 and cooler 4, and temperature-sensing ware 8 and cooler 4 all pass through electric connection with PLC controller 6, motor 2 and PLC controller 6 pass through electric connection, elastic spring 18 encircles the setting of telescopic link 15, and contact disc 17 contacts in the top setting of bolt 11 down, be equipped with the negative and positive rotor in the rotor case 3, and the output shaft of negative and positive rotor and motor 2.
In the invention, the fixed disks 10 at four corners of the bottom of the rotor box 3 are fixedly connected with the threaded seats 9 by using bolts 11, the rotating rod 13 is rotated by using the bearing 12, the horizontal plate 14 is rotated at the moment to enable the induction buttons on the pressure induction device 7 to be positioned right above the upper contact disk 16, the lower contact disk 17 is tightly contacted with the top of the bolt 11 due to the elastic action of the elastic spring 18, the rotor box 3 vibrates when the bolt 11 is worn and drives the bolt 11 to vibrate, and the upper contact disk 16 is contacted with the touch induction buttons when the bolt vibrates to a certain degree and sends a signal to the PLC 6 to remind a worker of repairing the rotor box.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A screw compressor control system comprises a compressor body (1) and a motor (2) and is characterized in that the motor (2) is located at the inner bottom of the compressor body (1) and is fixedly arranged, one end of the motor (2) is connected with a rotor box (3) through a coupler, a threaded seat (9) is fixedly arranged at the inner bottom of the compressor body (1), a fixed disk (10) is fixedly connected to four corners of the bottom of the rotor box (3), screw holes are formed in the threaded seat (9) and the fixed disk (10), bolts (11) are arranged in the screw holes of the threaded seat (9) and the fixed disk (10) in a penetrating mode, a bearing (12) is fixedly connected to the inner bottom of the compressor body (1), the top of the bearing (12) is rotatably connected with a rotating rod (13), and the top of the rotating rod (13) is fixedly connected with a horizontal plate (14), an expansion link (15) is vertically and movably arranged at one end, far away from the rotating rod (13), of the horizontal plate (14) in a penetrating mode, the top and the bottom of the expansion link (15) are fixedly connected with an upper contact disc (16) and a lower contact disc (17) respectively, an elastic spring (18) is fixedly welded between the bottom of the lower contact disc (17) and the bottom of the horizontal plate (14), a pressure sensing device (7) is arranged at the top of the horizontal plate (14), and one end of the motor (2) is connected with a PLC (6); the pressure sensing device (7) is provided with a sensing button, and the sensing button is positioned right above the upper contact plate (16).
2. The screw compressor control system according to claim 1, wherein an oil separator (5) is connected to one end of the rotor box (3), a temperature sensor (8) and a cooler (4) are arranged at one end of the oil separator (5), and the temperature sensor (8) and the cooler (4) are electrically connected with the PLC (6).
3. Screw compressor control system according to claim 1, characterised in that the electric motor (2) and the PLC controller (6) are electrically connected.
4. Screw compressor control system according to claim 1, characterised in that the elastic spring (18) is arranged around the telescopic rod (15) and the lower contact disc (17) is arranged in contact with the top of the bolt (11).
5. The screw compressor control system according to claim 1, wherein male and female rotors are provided in the rotor housing (3) and are connected to the output shaft of the motor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810025815.3A CN110030192B (en) | 2018-01-11 | 2018-01-11 | Screw compressor control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810025815.3A CN110030192B (en) | 2018-01-11 | 2018-01-11 | Screw compressor control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110030192A CN110030192A (en) | 2019-07-19 |
| CN110030192B true CN110030192B (en) | 2020-12-25 |
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ID=67234185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810025815.3A Active CN110030192B (en) | 2018-01-11 | 2018-01-11 | Screw compressor control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110030192B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3864264B2 (en) * | 1999-09-30 | 2006-12-27 | 株式会社日立製作所 | Refrigeration air conditioning compressor |
| CN102758759B (en) * | 2012-07-27 | 2016-03-16 | 奇瑞汽车股份有限公司 | The suspension system of air compressor |
| CN205578228U (en) * | 2016-05-11 | 2016-09-14 | 高加泉 | Automobile compressor support with adjustable |
| CN205937051U (en) * | 2016-08-15 | 2017-02-08 | 诺贝特空调（盐城）有限公司 | Vehicle air conditioner air compressor's shock attenuation device of making an uproar that disappears |
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2018
- 2018-01-11 CN CN201810025815.3A patent/CN110030192B/en active Active
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| Publication number | Publication date |
|---|---|
| CN110030192A (en) | 2019-07-19 |
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