CN210343636U

CN210343636U - Reciprocating piston type oxygen compressor with air pumping and supplying function

Info

Publication number: CN210343636U
Application number: CN201920294846.9U
Authority: CN
Inventors: 洪焕; 陈正江; 胡佳俊
Original assignee: Hangzhou Hangyang Compressor Co ltd
Current assignee: Hangzhou Hangyang Compressor Co ltd
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2020-04-17
Anticipated expiration: 2029-03-08

Abstract

A reciprocating piston oxygen compressor with a suction gas supply, said oxygen compressor comprising: the device comprises a machine body, a crankshaft, a connecting rod, a crosshead, a cylinder, a motor, a cooler, an air inlet filter, an oil scraper, an oil vapor suction device, a buffer, a gas-water pipeline system, an automatic valve, an oil station and an instrument electric control system; the oxygen compressor is arranged in a two-row two-stage structure, the machine body forms a rack of the oxygen compressor, the air cylinder is vertically arranged on the rack, the crankshaft is arranged in the rack formed by the machine body, the motor drives the connected crankshaft through a rigid coupling, the crankshaft rotates to drive the connecting rod and the crosshead which are sequentially connected to move and drive the piston to reciprocate, the piston applies work to the compression of the gas entering the air cylinder, so that the gas exhaust pressure reaches the middle pumping pressure and the tail end exhaust pressure and is led out through a first-stage middle pumping pipeline and a tail end exhaust pipeline respectively; the cooler is of a packing box structure, and a high-efficiency inner finned tube is arranged in the cooler and serves as a heat exchange tube.

Description

Reciprocating piston type oxygen compressor with air pumping and supplying function

Technical Field

The utility model belongs to the technical field of the compressor, a oxygen compressor is related to, concretely relates to take out reciprocating piston oxygen compressor of air feed in area.

Background

An oxygen compressor is a device used to compress gas. The oxygen compressor is similar to a water pump in structure, and most of the oxygen compressors adopt a reciprocating piston type structure or a rotary blade or rotary screw structure; generally, one piston type compressor in China can only realize air supply at one flow and one pressure, and a plurality of compressors must be used when air supply at a plurality of flows and a plurality of pressures is required. The reciprocating piston type oxygen compressor with air pumping and supplying functions realizes simultaneous air supply of two flows and two pressures of one piston type compressor, and belongs to Chinese white space.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide one kind and can realize two flows of single piston oxygen compressor and two pressure air supplies simultaneously to reduce piston oxygen compressor's equipment cost for the user and drop into, energy saving and environment-friendly's the reciprocating piston oxygen compressor who takes out the air feed in the area is realized to energy-concerving and environment-protective area and equipment maintenance expense.

The utility model aims at accomplishing through following technical scheme, a take out reciprocating piston formula oxygen compressor of air feed in area, oxygen compressor include: the device comprises a machine body, a crankshaft, a connecting rod, a crosshead, a cylinder, a motor, a cooler, an air inlet filter, an oil scraper, an oil vapor suction device, a buffer, a gas-water pipeline system, an automatic valve, an oil station and an instrument electric control system; the oxygen compressor is arranged in a two-row two-stage structure, the machine body forms a rack of the oxygen compressor, the air cylinder is vertically arranged on the rack, the crankshaft is arranged in the rack formed by the machine body, the motor drives the connected crankshaft through a rigid coupling, the crankshaft rotates to drive the connecting rod and the crosshead which are sequentially connected to move and drive the piston to reciprocate, the piston applies work to the compression of the gas entering the air cylinder, so that the gas exhaust pressure reaches the middle pumping pressure and the tail end exhaust pressure and is led out through a first-stage middle pumping pipeline and a tail end exhaust pipeline respectively; the cooler is of a packing box structure, and a high-efficiency inner finned tube is arranged in the cooler and serves as a heat exchange tube; the air inlet filter is of a conical structure, and a core of the air inlet filter is arranged in the filter cylinder; the oil vapor suction device is connected with the oil wiper, and the oil wiper can prevent liquid oil drops from entering the intermediate body along the piston rod.

Furthermore, the compressor is provided with a middle pumping pipeline between stages and a middle pumping automatic valve, and oxygen with certain pressure and flow is led out between stages; the oil wiper consists of an oil wiper body, an oil wiper ring and an oil scraping ring;

the instrument electric control system carries out a series of control of transmission, display, record, alarm and interlocking of the operation parameters by detecting a series of operation parameters of temperature, pressure, differential pressure and flow of each measuring point of the compressor, wherein the alarm and the interlocking are corresponding initial alarm and interlocking values set by the compressor for calculating and analyzing each working condition, so that the equipment can automatically judge whether the operation is normal or not.

Furthermore, the cylinder mainly comprises a cylinder barrel, a piston, an air inlet valve, an air outlet valve and a sealer capable of sealing a shaft of the piston rod, the cylinder is a water jacket cylinder capable of being cooled by water and reducing the temperature of the wall of the cylinder, a cylinder sleeve is arranged in the cylinder barrel of the cylinder, and the air inlet valve and the air outlet valve are all mesh valves.

Furthermore, the piston mainly comprises a piston body, a piston rod, a guide ring, a support ring and an oil baffle disc, wherein the oil baffle disc is arranged on the piston rod, and an oil-resistant rubber ring is clamped with the piston rod in the piston rod to prevent oil from entering the cylinder along the piston rod; the piston body is made of aluminum alloy castings, and the piston ring and the support ring are made of filled polytetrafluoroethylene.

Furthermore, the sealer comprises a blocking ring, a cutoff ring, five groups of sealing boxes and a tail end sealing ring, wherein each sealing box comprises a radial notch sealing ring, a tangential notch sealing ring and a non-notch supporting ring, and the radial notch sealing ring, the tangential notch sealing ring and the non-notch supporting ring are respectively made of filled tetrafluoroethylene.

Further, the oil station is a pry block structure, all oil station accessories are arranged on the bottom plate, and the oil station accessories comprise: the oil cooler is connected with the oil pump and the oil pump through the oil pump; the oil vapor suction device enables the pressure in the oil vapor pipe to reach-8 to-2 kPa under the action of a vacuum jet pump, and prevents oil mist from flowing out of the oil scraper and entering an intermediate; the vacuum jet pump adopts 0.30 MPa (-30 Nm3/h) dry air or nitrogen as a power source;

the automatic valve comprises an inlet valve and a middle pumping valve, and all adopt automatic regulating valves with high automation degree.

The utility model has the advantages of: a vertical two-column two-stage double-acting compression and interstage air extraction structure is adopted, and a new calculation and design method is adopted. A brand-new movement mechanism, a lubricating oil system, a cooling system, a middle pumping pipeline system, a gas quantity control system, an instrument control system and a safety device of the compressor are designed; the utility model discloses a when two flows and two pressures air supplies of a compressor, when reducing piston oxygen compressor equipment cost for the user and drop into, still have characteristics such as energy saving and consumption, area and equipment maintenance expense, realized energy-concerving and environment-protective.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the working flow of the gas circuit system of the present invention;

fig. 3 is a schematic view of the working flow of the waterway system of the present invention;

fig. 4 is a schematic view of the work flow of the oil circuit system of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1-4, a reciprocating piston type oxygen compressor with a central air pumping and supplying function, the oxygen compressor comprises: the device comprises a body 7, a crankshaft 2, a connecting rod 3, a crosshead 4, a cylinder 10, a motor 12, a cooler, an air inlet filter 15, an oil scraper 6, an oil vapor suction device 5, a buffer, an air-water pipeline system, an automatic valve, an oil station 1 and an instrument electronic control system; the oxygen compressor is arranged in a two-row two-stage structure, the machine body 7 forms a rack of the oxygen compressor, the air cylinder 10 is vertically arranged on the rack, the air cylinder 10 is independently cast by gray cast iron and is vertically arranged on the machine body 7 by a special high-strength bolt; the crankshaft 2 is arranged in a frame formed by a machine body 7, the machine body 7 is integrally cast by gray iron, the crankshaft 2 is arranged at the end covers of the machine body at two ends, and the connecting rod 3 and the crosshead 4 are arranged from a guide rail of the machine body; the motor 12 drives the connected crankshaft 2 through a rigid coupling 11, the crankshaft 2 rotates to drive the connecting rod 3 and the crosshead 4 which are sequentially connected to move and drive the piston 9 to reciprocate, the piston 9 compresses gas entering the cylinder 10 to do work, so that the gas exhaust pressure reaches the middle suction pressure and the tail end exhaust pressure, and the gas exhaust pressure is led out through a first-stage middle suction pipeline and a tail end exhaust pipeline respectively; the cooler is of a packing box structure, and a high-efficiency inner finned tube is arranged in the cooler and serves as a heat exchange tube; the air inlet filter 15 is of a conical structure, and a core of the air inlet filter 15 is arranged in a filter cylinder; the oil vapor suction device 5 is connected with the oil wiper 6, and the oil wiper 6 can prevent liquid oil drops from entering the intermediate body along the piston rod.

Referring to fig. 1, the compressor is provided with a middle pumping pipeline between stages and a middle pumping automatic valve, and oxygen with certain pressure and flow is led out between stages; the oil wiper 6 consists of an oil wiper body, an oil wiper ring and an oil scraping ring;

Referring to fig. 1, the cylinder 10 mainly comprises a cylinder barrel, a piston 9, an intake valve, an exhaust valve and a sealer 8 capable of sealing a piston rod shaft, the cylinder 10 is a water jacket cylinder capable of being cooled by water and reducing the temperature of the cylinder wall, a cylinder sleeve is arranged in the cylinder barrel of the cylinder 10, and the intake valve and the exhaust valve are all mesh valves.

Referring to fig. 1, the piston 9 mainly comprises a piston body, a piston rod, a guide ring, a support ring and an oil baffle disc, wherein the oil baffle disc is arranged on the piston rod, and an oil-proof rubber ring is clamped with the piston rod in the piston rod to prevent oil from entering the cylinder 10 along the piston rod; the piston body is made of aluminum alloy castings, and the piston ring and the support ring are made of filled polytetrafluoroethylene.

Referring to fig. 1, the sealer 8 is composed of a blocking ring, a cutoff ring, five groups of sealing boxes and a terminal sealing ring, wherein each sealing box is composed of a radial notch sealing ring, a tangential notch sealing ring and a non-notch supporting ring, and the radial notch sealing ring, the tangential notch sealing ring and the non-notch supporting ring are respectively made of filled tetrafluoroethylene.

Referring to fig. 1 and 2, the oil station 1 is of a pry block structure, and all oil station accessories are arranged on a base plate and comprise: the oil cooler is connected with the oil pump and the oil pump through the oil pump; the oil vapor suction device 5 enables the pressure in the oil vapor pipe to reach minus 8 to minus 2kPa under the action of a vacuum jet pump, and prevents oil mist from flowing out of the oil scraper 6 to enter an intermediate; the vacuum jet pump adopts 0.30 MPa (-30 Nm3/h) dry air or nitrogen as a power source;

the automatic valves comprise an inlet valve 13 and a middle suction valve 14, and all adopt automatic regulating valves with high automation degree; the instrument electric control system can give an alarm to abnormal operation conditions and can react at the first time through corresponding valve automatic interlocking control, so that the safe and stable operation of equipment is ensured.

The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.

Claims

1. A reciprocating piston oxygen compressor with a suction gas supply, said oxygen compressor comprising: the device comprises a machine body, a crankshaft, a connecting rod, a crosshead, a cylinder, a motor, a cooler, an air inlet filter, an oil scraper, an oil vapor suction device, a buffer, a gas-water pipeline system, an automatic valve, an oil station and an instrument electric control system; the oxygen compressor is characterized in that the oxygen compressor is arranged in a two-row two-stage structure, the machine body forms a rack of the oxygen compressor, the air cylinder is vertically arranged on the rack, the crankshaft is arranged in the rack formed by the machine body, the motor drives the connected crankshaft through a rigid coupling, the crankshaft rotates to drive the connecting rod and the crosshead which are sequentially connected to move and drive the piston to reciprocate, the piston applies work to the compression of the gas entering the air cylinder, so that the gas exhaust pressure reaches the middle pumping pressure and the tail end exhaust pressure and is respectively led out through a first-stage middle pumping pipeline and a tail end exhaust pipeline; the cooler is of a packing box structure, and a high-efficiency inner finned tube is arranged in the cooler and serves as a heat exchange tube; the air inlet filter is of a conical structure, and a core of the air inlet filter is arranged in the filter cylinder; the oil vapor suction device is connected with the oil wiper, and the oil wiper can prevent liquid oil drops from entering the intermediate body along the piston rod.

2. The oxygen compressor of claim 1, wherein the compressor is provided with a medium suction line between stages, and is provided with a medium suction automatic valve, and oxygen of a certain pressure and flow is led out between stages; the oil wiper consists of an oil wiper body, an oil wiper ring and an oil scraping ring;

3. The oxygen compressor of claim 2, wherein the cylinder mainly comprises a cylinder barrel, a piston, an air inlet valve, an air outlet valve and a sealer capable of sealing a shaft of the piston rod, the cylinder is a water jacket cylinder capable of being cooled by water and reducing the temperature of the wall of the cylinder, a cylinder sleeve is arranged in the cylinder barrel of the cylinder, and the air inlet valve and the air outlet valve are all mesh valves.

4. The oxygen compressor of claim 3, wherein the piston is of a double-acting structure and mainly comprises a piston body, a piston rod, a guide ring, a support ring and an oil baffle disc, wherein the oil baffle disc is arranged on the piston rod, and an oil-resistant rubber ring is clamped with the piston rod in the piston rod to prevent oil from entering the cylinder along the piston rod; the piston body is made of aluminum alloy castings, and the piston ring and the support ring are made of filled polytetrafluoroethylene.

5. The oxygen compressor of claim 3, wherein the sealer comprises a block ring, a cutoff ring, five sets of sealing boxes and a terminal sealing ring, the sealing boxes comprise a radial cut sealing ring, a tangential cut sealing ring and a non-cut supporting ring, and the radial cut sealing ring, the tangential cut sealing ring and the non-cut supporting ring are made of filled tetrafluoroethylene.

6. The oxygen compressor of any one of claims 1 to 5, wherein the oil station is of a skid structure, and all oil station accessories are arranged on the base plate, and the oil station accessories comprise: the oil cooler is connected with the oil pump and the oil pump through the oil pump; the oil vapor suction device enables the pressure in the oil vapor pipe to reach-8 to-2 kPa under the action of a vacuum jet pump, and prevents oil mist from flowing out of the oil scraper and entering an intermediate; the vacuum jet pump adopts 0.30 MPa (-30 Nm3/h) dry air or nitrogen as a power source;