CN212867907U

CN212867907U - Screw air compressor control system

Info

Publication number: CN212867907U
Application number: CN202020873673.9U
Authority: CN
Inventors: 赵保义; 董光海; 朱俊超; 栾谋成
Original assignee: Hefei Boshida Automobile Technology Service Co ltd
Current assignee: Hefei Boshida Automobile Technology Service Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-04-02
Anticipated expiration: 2030-05-22

Abstract

The utility model relates to a screw compressor control system, include the compressor host computer of being connected with the motor is automatically controlled, the admission valve that is connected with air cleaner, compressor host computer one end is connected with the oil cooler through the oil gas section of thick bamboo, the gas outlet is installed to oil cooler outer wall one end, be equipped with the oil and gas separator rather than the looks adaptation in the oil gas section of thick bamboo, the aftercooler who is connected with the gas outlet is installed through the pressure maintenance valve to the oil and gas separator output, be connected through oil cleaner between oil cooler and the compressor host computer, be equipped with the check valve that extends to oil and gas separator inside on the compressor host computer, just install solenoid valve and relief valve on the last intake hose and the oil and gas separator. Has the advantages that: the utility model discloses the cooling effect is good, and the system is less or under the no in service behavior in user's volume, and the compressor can be in no loaded normal operating, can carry out timely reduction under the condition of the high current-voltage of external input moreover.

Description

Screw air compressor control system

Technical Field

The utility model relates to a compressor control system technical field, concretely relates to screw rod air compressor control system.

Background

The compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas, and is the heart of a refrigeration system. The refrigeration cycle comprises a gas suction pipe, a motor, a piston, an exhaust pipe, a compression pipe, a condensation pipe, an expansion pipe, an evaporation pipe, a heat exchange pipe and a heat exchange pipe.

The driving medium during operation that current compressor is connected, because long-time motion friction between the rotor, make the structure produce certain damage, and the inside sealing mechanism that often is not of compressor, the volume ratio has been reduced, because the content of refrigerator is certain, the compression cooling effect also can reduce the cooling effect along with the lapse of time, and compressor control system is little or under the condition of using stopping to the user volume, the admission valve can not obtain timely closing, and when outside current-voltage is too big, can not carry out timely regulation, the security of system has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a safety and stability, energy-conserving effectual and reduce the friction between the driving medium and the strong screw rod air compressor control system of cooling property is realized through following scheme.

In order to realize the above purpose, the utility model discloses a technical scheme be: the utility model provides a screw compressor control system, includes the compressor host computer of being connected with the motor is automatically controlled, the admission valve that is connected with air cleaner, compressor host computer one end is connected with oil cooler through oil gas section of thick bamboo, the gas outlet is installed to oil cooler outer wall one end, its characterized in that, be equipped with the oil and gas separator rather than the looks adaptation in the oil gas section of thick bamboo, the aftercooler who is connected with the gas outlet is installed through the pressure maintenance valve to the oil and gas separator output, be connected through oil filter between oil cooler and the compressor host computer, be equipped with the check valve that extends to the inside oil and gas separator on the compressor host computer, just install solenoid valve and relief valve on the last air inlet hose and the.

Further, still include the controller that is connected with the compressor host computer, A, B, C three-phase lines on the controller all are connected with the circuit breaker through first fuse and carry out ground protection, the circuit breaker output is connected with first current transformer and second current transformer respectively through binding post, first current transformer one end is connected with first motor through first ac contactor, second current transformer one end is connected with the second motor through second ac contactor, second current transformer output one end is connected with the transformer through the second fuse, install the fan loading valve that is connected with the compressor host computer through the third fuse on the transformer, compressor host computer output connects in parallel on the controller.

Furthermore, a tight stop switch connected with the oil filter is arranged on the controller, and grounding protection is performed.

Further, a temperature sensor and a pressure sensor are respectively arranged on the compressor main body and the pressure maintaining valve.

Furthermore, one side of the outer wall of the bottom end of the oil gas cylinder is provided with an oil pressure valve.

The technical effects of the utility model reside in that: the motor drives the main rotor along with the shaft device, the speed-up turbine or the belt, because two rotors are mutually meshed, two rotors rotate together, cooling lubricating oil is directly sprayed into a rotor meshing part through the nozzle and is mixed with air, heat brought away by compression is taken away, a cooling effect is achieved, an oil film is formed at the same time, direct contact between metal and metal between the rotors and a gap between the rotors and a shell are prevented, and noise caused by high-speed compression of the sprayed lubricating oil can be reduced.

Drawings

Fig. 1 is a schematic structural diagram of the screw air compressor control system of the present invention;

fig. 2 is an electrical schematic diagram of the controller of the present invention.

Reference numerals: 1-a motor; 2-the compressor host; 3-an air filter; 4-an air inlet valve; 5-oil gas cylinder; 6-an oil cooler; 7-air outlet; 8-an oil-gas separator; 9-a pressure maintenance valve; 10-aftercooler; 11-an oil filter; 12-a one-way valve; 13-an air intake hose; 14-a solenoid valve; 15-safety valve; 16-sickle; 17-a material storage box; 18-a via hole; 19-handle.

Detailed Description

Referring to the attached figures 1-2, the screw air compressor control system comprises a compressor main body 2 electrically connected with a motor 1 and an air inlet valve 4 connected with an air filter 3, wherein one end of the compressor main body 2 is connected with an oil cooler 6 through an oil cylinder 5, one end of the outer wall of the oil cooler 6 is provided with an air outlet 7, the oil cylinder 5 is internally provided with an oil-gas separator 8 matched with the oil cylinder 5, the output end of the oil-gas separator 8 is provided with a post cooler 10 connected with the air outlet 7 through a pressure maintaining valve 9, the oil cooler 6 is connected with the compressor main body 2 through an oil filter 11, the compressor main body 2 is provided with a one-way valve 12 extending to the inside of the oil-gas separator 8, and an air inlet hose 13 on the air inlet valve 4 and the oil-gas separator 8 are respectively.

The specific embodiment of the scheme is that the oil filter further comprises a controller connected with the compressor main machine 2, A, B, C three-phase lines on the controller are connected with a circuit breaker through a first fuse and are subjected to ground protection, the output end of the circuit breaker is respectively connected with a first current transformer and a second current transformer through wiring terminals, one end of the first current transformer is connected with a first motor through a first alternating current contactor, one end of the second current transformer is connected with a second motor through a second alternating current contactor, the output end of the second current transformer is connected with a transformer through a second fuse, a fan loading valve connected with the compressor main machine is installed on the transformer through a third fuse, the output end of the compressor main machine is connected on the controller in parallel, a tight stop switch connected with the oil filter 11 is arranged on the controller and is subjected to ground protection, in addition, the various electrical components in fig. 2 are also labeled in the figure.

The specific embodiment of this scheme does, A, B, C three-phase line passes through the first motor and the second motor that current transformer connects, thereby can convert the heavy current into the undercurrent and carry out the precision measurement, and when binding post contacted the large-voltage, can reduce through the transformer, can touch the fan valve on the host computer in addition and open and then carry out the operation of dispelling the wind, reduce the temperature, and the switch that stops on the controller also can touch to open because of the unusual current-voltage in the induction line simultaneously.

The screw compressor has no air inlet and exhaust organization, the air inlet is closed and adjusted by opening and closing the adjusting valve, when the rotor rotates, the tooth groove space of the primary rotor and the secondary rotor is the largest when rotating to the opening of the air inlet end wall, at the moment, the tooth groove space of the rotor is communicated with the air inlet by free air, the air in the tooth groove space is exhausted in a well-known manner when exhausting is finished, the tooth groove is in a vacuum state, when the rotor rotates to the air inlet, the outside air is sucked and flows into the tooth groove of the primary rotor and the secondary rotor along the axial direction, and when the air is filled in the whole tooth groove, the inside of the tooth groove is closed.

The specific embodiment of this scheme does, and the oil gas section of thick bamboo 5 in the system is provided with oil and gas separator 8, not only is acting as the conversion of coolant, also the pressure in the balanced control pipeline that can be better, is equipped with single-phase valve 12 between compressor host 2 and the oil and gas separator 8 simultaneously, can effectually prevent that the air current from taking place the suck-back phenomenon, sets up oil filter 11 in addition on the oil cooler 6, also can carry out effectual filtration to the oil body to this normal operating of guaranteeing the device.

The specific embodiment of the scheme is that a temperature sensor and a pressure sensor are respectively installed on the compressor main machine 2 and the pressure maintaining valve 9, the models of the temperature sensor and the pressure sensor are respectively SPS067V2 and SPS067V2, and an oil pressing valve is arranged on one side of the outer wall of the bottom end of the oil gas cylinder 5.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a screw compressor control system, includes compressor host computer (2) of being connected with motor (1) automatically controlled, admission valve (4) that are connected with air cleaner (3), compressor host computer (2) one end is connected with oil cooler (6) through oil gas section of thick bamboo (5), gas outlet (7) are installed to oil cooler (6) outer wall one end, a serial communication port, be equipped with oil and gas separator (8) rather than the looks adaptation in oil gas section of thick bamboo (5), aftercooler (10) that are connected with gas outlet (7) are installed through pressure maintenance valve (9) to oil and gas separator (8) output, be connected through oil filter (11) between oil cooler (6) and compressor host computer (2), be equipped with on compressor host computer (2) and extend to inside check valve (12) of oil and gas separator (8), just install electromagnetism on admission hose (13) and the oil and gas separator (8) on admission valve (4) respectively A valve (14) and a safety valve (15).

2. The screw air compressor control system according to claim 1, further comprising a controller connected with a compressor main unit (2), wherein A, B, C three-phase lines on the controller are connected with a circuit breaker and are subjected to ground protection through a first fuse, the circuit breaker output end is connected with a first current transformer and a second current transformer through a wiring terminal respectively, one end of the first current transformer is connected with a first motor through a first alternating current contactor, one end of the second current transformer is connected with a second motor through a second alternating current contactor, the output end of the second current transformer is connected with a transformer through a second fuse, a fan loading valve connected with the compressor main unit is installed on the transformer through a third fuse, and the compressor main unit output end is connected on the controller in parallel.

3. The screw air compressor control system according to claim 2, wherein the controller is provided with a stop switch connected to the oil filter (11) for ground protection.

4. The screw air compressor control system according to claim 1, wherein a temperature sensor and a pressure sensor are respectively mounted on the compressor main body (2) and the pressure maintaining valve (9).

5. The screw air compressor control system according to claim 1, wherein a pressure oil valve is arranged on one side of the outer wall of the bottom end of the oil cylinder (5).