CN216741671U - Negative pressure oil-gas separator with sensor seat - Google Patents
Negative pressure oil-gas separator with sensor seat Download PDFInfo
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- CN216741671U CN216741671U CN202122763126.2U CN202122763126U CN216741671U CN 216741671 U CN216741671 U CN 216741671U CN 202122763126 U CN202122763126 U CN 202122763126U CN 216741671 U CN216741671 U CN 216741671U
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Abstract
The utility model discloses a negative pressure oil-gas separator with a sensor seat, which comprises a respirator and a separator and is characterized in that: the respirator comprises a respirator body and a respirator cover, wherein the bottom of the respirator is provided with an inner connecting arm and an outer connecting arm which are connected with an original separator, and a fine damping net which is arranged on the inner connecting arm, an annular air inlet channel is formed between the inner connecting arm and the outer connecting arm, a flow pressure adjusting device is arranged in the cover above the respirator body, the cover and the inner wall of the respirator body are separated into an external annular airflow cavity and a middle columnar airflow adjusting cavity through the device, the airflow adjusting cavity is positioned above a narrow part in the middle of an air source channel, one end of the air source channel is an air inlet cavity, an air inlet nozzle is matched in the air inlet cavity, the elastic front part of the air inlet nozzle is small, the rear end of the air inlet nozzle is provided with a pipe joint, the other end of the air source channel is provided with an expansion channel and an air outlet channel, and a sensor seat is arranged on the air outlet channel.
Description
Technical Field
The utility model relates to an oil-gas separation control system of an automobile engine, in particular to a negative pressure oil-gas separator with a sensor seat.
Background
As is well known, when an automobile engine works, a certain gap is always formed between a piston ring and a cylinder sleeve of the engine, and the gap is continuously enlarged along with the abrasion of the piston ring, so that part of combustible mixed gas and combusted waste gas always flow into a crankcase of the engine from the gap, the pressure in the crankcase is increased, and engine oil leaks and runs off from a crankshaft oil seal, a crankcase gasket, an oil pan gasket and the like; the waste gas after combustion which flows into the crankcase is continuously mixed with the engine oil during the working period of the engine due to high temperature, so that the engine oil is carbonized at high temperature, becomes thin and has deteriorated performance, and secondary waste gas is generated at the same time; the water vapor in the secondary exhaust gas is condensed in the engine oil to form foam, so that the supply of the engine oil is influenced, and the phenomenon is particularly serious in winter; sulfur dioxide in the secondary waste gas generates sulfurous acid when meeting water, and the sulfurous acid generates sulfuric acid in the air, so that not only is the engine oil deteriorated, but also engine parts are corroded; therefore, the waste gas in the crankcase of the engine must be discharged to prevent the engine oil from deteriorating and leaking due to overlarge pressure; however, since the crankcase waste gas contains a large amount of combustible gas, combustion waste gas and secondary waste gas in the crankcase, and also contains a large amount of water vapor, sulfur dioxide, liquid engine oil, vaporized engine oil, carbon black generated by high-temperature deterioration of the engine oil and the like, if the complex oil-gas mixed gas is directly discharged into the atmosphere, not only is the environment seriously polluted, but also a large amount of engine oil consumption is brought.
The automobile emission standard published in China is specified as follows: crankcase exhaust gases from class a and class B vehicles are not allowed to vent directly to atmosphere; euro II and Euro III automotive emissions standards also specify: crankcase waste gas of all engines must be separated again, engine oil is recycled to the crankcase, and the waste gas enters the combustion chamber again for combustion and then is discharged uniformly; meanwhile, PM2.5 monitoring started in China from 2012 does not allow direct emission to the atmosphere.
The problem of crankcase exhaust-gas treatment has been better solved to independent outer hanging multistage oil-gas separation assembly of current patent 201210199599.7, but this technical scheme can not form stronger negative pressure, can not effectively suck crankcase waste gas, consequently can't make the crankcase maintain under certain negative pressure state, causes the pressure in the crankcase to be greater than atmospheric pressure and the risk of oil leak appears, can't effectively reach latest "light vehicle pollutant emission limit value and measurement method (sixth stage of china)" crankcase pollutant emission test (type III test) requirement in the measurement method, the engine is under any operating mode, the pressure in the crankcase must not be greater than atmospheric pressure "the regulation.
The existing patent 202020799827.4 discloses a negative pressure oil-gas separator respirator, which has good low-pressure suction force and can effectively suck out waste gas from a crankcase, but has the defects of unstable gas source, poor matching property and poor adaptability.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide the negative pressure oil-gas separator with the sensor seat, which utilizes the Venturi effect to form negative pressure, is matched with the crude oil-gas separator to effectively suck out waste gas of a crankcase, prevents oil leakage risk caused by air pressure, and has the characteristics of stable air source, strong matching property, easy maintenance and the like. The specific scheme is as follows.
The utility model provides a take negative pressure oil-gas separator of sensor seat, includes respirator, separator, the respirator include respirator body, respirator lid, the respirator bottom is equipped with the interior outer linking arm of connecting former separator to and set up the meticulous damping net on the inner linking arm, form annular inlet channel between the interior outer linking arm, be equipped with flow pressure adjusting device in the lid of respirator body top, and separate into outside annular air current chamber and middle part column air current regulation chamber through the device and respirator inner wall, the air current regulation chamber is located the narrower department in air supply passageway middle part top, air supply passageway one end is the chamber of admitting air, and the intracavity of admitting air is matched with air nozzle, and air nozzle is the front portion of bullet form and is little, and the inlet nozzle rear end is equipped with the coupling, and the air supply passageway other end is equipped with expansion passageway and outlet channel, and the last sensor seat that opens of outlet channel.
The pipe joints are ∅ 8mm quick joint pipe joints, ∅ 19 pipe joints and M10 internal thread pipe joints.
The flow pressure adjusting device comprises a flow pressure adjusting valve diaphragm, a flow pressure adjusting valve spring and a spring seat, wherein the flow pressure adjusting valve spring is sleeved between the diaphragm and the spring seat and is positioned in the airflow adjusting cavity, and the spring seat is fixed at the bottom of the airflow adjusting cavity.
The expanding channel is trumpet-shaped, and the caliber of the expanding channel is gradually increased from inside to outside.
The separator keeps the same with the separation device of the independent externally-hung multi-stage oil-gas separation assembly of patent 201210199599.7, and is characterized in that an installation sheet is arranged on the outer wall of the separator.
Further explanation of the present technical solution:
1. the device can be directly sleeved on a separation foundation part of a crude oil gas separator and can be used;
2. the respirator continuously utilizes the Venturi effect to generate negative pressure, the waste gas of the crankcase is actively sucked out, the inside of the crankcase can be maintained in a certain negative pressure state, the risk of oil leakage caused by the fact that the pressure in the crankcase is greater than the atmospheric pressure is prevented, and the respirator conforms to the national emission regulation;
3. the negative pressure in the crankcase can be adjusted under the combined action of the flow pressure adjusting valve diaphragm and the spring;
4. the compressed air source provided for the nozzle directly uses the turbocharged air, so that the air source arranged in the whole vehicle is reduced, the cost of the whole vehicle is reduced, and the pressure of the air source is more stable;
5. according to the requirements of different machine types on the size of negative pressure, the scheme is designed for a replaceable nozzle part, the size of the nozzle can be adjusted in a replaceable manner to meet different customer requirements, and different types of nozzles are adopted to match different compressed air source air inlet devices, such as ∅ 8mm quick connector pipe joints, ∅ 19 pipe joints and M10 internal thread pipe joints;
6. the flow pressure regulating valve spring can be set according to the pressure requirement of a crankcase of a customer, so that the negative pressure of the crankcase can be accurately controlled;
7. according to the six-stage discharge standard requirements of China, disassembly prevention monitoring of the oil-gas separator is required, and pressure monitoring of the gas outlet of the oil-gas separator is required.
Drawings
FIG. 1 is a schematic cross-sectional structure diagram of a negative pressure oil-gas separator with a sensor seat, which adopts an ∅ 8mm pipe joint;
FIG. 2 is a schematic cross-sectional structure diagram of a negative pressure oil-gas separator with a sensor seat, which adopts an ∅ 19 pipe joint;
FIG. 3 is a schematic cross-sectional structure diagram of a negative pressure oil-gas separator with a sensor seat, which adopts an M10 female screw pipe joint.
Description of the figures: the device comprises a respirator body 1, a respirator cover 2, an internal and external connecting arm 3, a fine damping net 4, an air inlet channel 5, a flow pressure adjusting device 6, a flow pressure adjusting valve diaphragm 6-1, a flow pressure adjusting valve spring 6-2, an annular airflow cavity 7, a columnar airflow adjusting cavity 8, an air inlet nozzle 9, a pipe joint 9-1, an air source channel 10, an expansion channel 10-1, an air outlet channel 10-2, a sensor seat 11, a separator 12 and an installation sheet 12-1.
Detailed Description
Example 1, referring to fig. 1-3, a negative pressure oil-gas separator with a sensor seat comprises a respirator and a separator 12, wherein the respirator comprises a respirator body 1 and a respirator cover 2, the bottom of the respirator is provided with an inner connecting arm 3 connected with the original separator and an outer connecting arm, and a fine damping net 4 arranged on the inner connecting arm, an annular air inlet channel 5 is formed between the inner connecting arm and the outer connecting arm, a flow pressure regulating device 6 is arranged in the cover above the respirator body and is separated from the inner wall of the respirator body into an outer annular airflow cavity 7 and a middle columnar airflow regulating cavity 8 through the device, the airflow regulating cavity is positioned above the narrower middle part of an air source channel 10, one end of the air source channel is an air inlet cavity, an air inlet nozzle 9 is arranged in the air inlet cavity, the front part of the air inlet nozzle is in a bullet shape, the rear end of the air inlet nozzle is provided with 9-1, the other end of the air source channel is provided with an expansion pipe joint 10-1 and an air outlet channel 10-2, the air outlet channel is provided with a sensor seat 11.
The pipe joint 9-1 is a ∅ 8mm quick joint pipe joint, a ∅ 19 pipe joint and an M10 internal thread pipe joint.
The flow pressure adjusting device 6 comprises a flow pressure adjusting valve diaphragm 6-1, a flow pressure adjusting valve spring 6-2 and a spring seat, wherein the flow pressure adjusting valve spring is sleeved between the diaphragm and the spring seat and is positioned in the airflow adjusting cavity, and the spring seat is fixed at the bottom of the airflow adjusting cavity.
The expansion channel 10-1 is trumpet-shaped, and the caliber of the expansion channel gradually increases from inside to outside.
The separator is consistent with the separation device of the independent externally-hung multi-stage oil-gas separation assembly in the patent 201210199599.7, and is characterized in that an installation piece 12-1 is arranged on the outer wall of the separator.
Claims (4)
1. The utility model provides a take negative pressure oil-gas separator of sensor seat, includes respirator and separator, characterized by: the respirator comprises a respirator body and a respirator cover, wherein the bottom of the respirator is provided with an inner connecting arm and an outer connecting arm which are connected with an original separator, and a fine damping net which is arranged on the inner connecting arm, an annular air inlet channel is formed between the inner connecting arm and the outer connecting arm, a flow pressure adjusting device is arranged in the cover above the respirator body, the cover and the inner wall of the respirator body are separated into an external annular airflow cavity and a middle columnar airflow adjusting cavity through the device, the airflow adjusting cavity is positioned above a narrow part in the middle of an air source channel, one end of the air source channel is an air inlet cavity, an air inlet nozzle is matched in the air inlet cavity, the front part of the air inlet nozzle is small in a bullet shape, the rear end of the air inlet nozzle is provided with a pipe joint, the other end of the air source channel is provided with an expansion channel and an air outlet channel, and the air outlet channel is provided with a sensor seat.
2. The negative pressure oil-gas separator with the sensor seat as claimed in claim 1, wherein: the pipe joints are ∅ 8mm quick joint pipe joints, ∅ 19 pipe joints and M10 internal thread pipe joints.
3. The negative pressure oil-gas separator with the sensor seat as claimed in claim 1, wherein: the flow pressure adjusting device comprises a flow pressure adjusting valve diaphragm, a flow pressure adjusting valve spring and a spring seat, wherein the flow pressure adjusting valve spring is sleeved between the diaphragm and the spring seat and is positioned in the airflow adjusting cavity, and the spring seat is fixed at the bottom of the airflow adjusting cavity.
4. The negative pressure oil-gas separator with the sensor seat as claimed in claim 1, wherein: the expansion channel is horn-shaped, and the caliber of the expansion channel is gradually increased from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122763126.2U CN216741671U (en) | 2021-11-12 | 2021-11-12 | Negative pressure oil-gas separator with sensor seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122763126.2U CN216741671U (en) | 2021-11-12 | 2021-11-12 | Negative pressure oil-gas separator with sensor seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216741671U true CN216741671U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122763126.2U Active CN216741671U (en) | 2021-11-12 | 2021-11-12 | Negative pressure oil-gas separator with sensor seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216741671U (en) |
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2021
- 2021-11-12 CN CN202122763126.2U patent/CN216741671U/en active Active
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