Two-stage coarse separation efficient filtering compressor

Abstract

The utility model discloses a two-stage coarse separation efficient filtering compressor which comprises a main machine, a primary gas-liquid separator and an oil-gas separator, an exhaust port of the main machine is communicated with a gas inlet of the primary gas-liquid separator, the primary gas-liquid separator conducts primary coarse separation on a liquid-gas mixture, an exhaust port of the primary gas-liquid separator is communicated with a converging inlet of the oil-gas separator, and the oil-gas separator conducts primary coarse separation on the liquid-gas mixture. The oil-gas separator is used for carrying out secondary coarse separation on a liquid-gas mixture, a liquid outlet of the primary gas-liquid separator is communicated with a converging port of the oil-gas separator, liquid obtained through primary coarse separation is converged to the inner bottom of the oil-gas separator through the liquid outlet, and a first oil-gas separation core is arranged in the oil-gas separator; the top side of the first oil-gas separation core is connected with a cooler through a gas conveying pipeline, a minimum pressure valve is arranged on the gas conveying pipeline, and the interior of the first oil-gas separation core is connected with the gas inlet end of the main engine through a secondary oil return pipeline A. The device is lower in cost, greatly improves the quality of compressed air, ensures that terminal equipment is not polluted, and ensures the service life of a postprocessor.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor technical field, specifically a two-stage rough division high -efficient filter compressor. BACKGROUND

[0002] The compressed air pollutants are mainly solid particles, water and oil, for the oil injection type compressor, the exhaust gas will carry out oil, and the general means such as rough division and precision filtration are used in the compressor, when applied to the equipment with high quality requirements for compressed air, a plurality of precision filters are needed to be configured after the compressor to obtain high-quality compressed air. When applied to the industry with high quality requirements for air, such as food, medical treatment, electronics, laser and the like, the oil separation core of the compressor or the filter of the post-processing will increase the oil content of the exhaust gas after a period of use or low pressure, so that the quality of the compressed air is poor, thereby the use of the equipment with high requirements is not suitable, or the use of the equipment is affected.

[0003] The oil separation core of the general air compressor requires that the oil removal reaches less than or equal to 3ppm, and when leaving the factory, if the measurement reaches 2.5ppm, then after a period of use, such as 1000 hours, the standard of 3ppm is quickly exceeded, which causes the increase of the oil content of the air, and the following problems are caused: first, the use of the terminal equipment may be affected; second, more oil stains are discharged from the post-processing water; third, the environment is polluted or the difficulty of sewage treatment is increased; third, the oil storage capacity of the oil tank in the compressor is reduced, and the longer the time, the less the oil, the compressor will appear high-temperature alarm, resulting in shutdown and unable to use, which affects the normal production of the customer; third, the customer must supplement oil to make the compressor restart, which increases the use cost of the customer; fifth, the use time of the oil separation core is shortened, which also increases the use cost of the customer. Therefore, when the exhaust gas treatment and filtration of the oil injection compressor are poor, many adverse effects are caused, especially for the application of the compressed air quality with low oil content requirement, such as laser cutting, the oil content cannot be large, and the large oil content will pollute the lens and affect the condensation, if pollution occurs, the lens must be wiped regularly, which affects the efficiency, and in serious cases, the lens is burned. For example, in the medical and electronic industries, the large oil content of the compressed air will also affect the production quality. If the oil content of the exhaust gas of the compressor is large, the precision filtration of the post-processing is difficult, and the filter core of the post-processing filtration is small, the flow rate is high, and it is difficult to filter the residual oil in the compressed air with high precision, so the compressor tries to reduce the residual oil in the air, which has great significance for the quality assurance of the compressed air, use cost and environmental pollution prevention. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a two-stage coarse separation high-efficiency filter compressor which has low cost, greatly improves the quality of compressed air, guarantees that terminal equipment is not polluted and guarantees the service life of a post-treatment device.

[0005] The utility model discloses a two-stage coarse separation high-efficiency filter compressor which has low cost, greatly improves the quality of compressed air, guarantees that terminal equipment is not polluted and guarantees the service life of a post-treatment device.

[0006] Further, the shell of the primary gas-liquid separator is cylindrical, the gas inlet of the primary gas-liquid separator is located on the upper sidewall of the shell, and the gas inlet is tangent to the shell, the liquid outlet of the primary gas-liquid separator is located on the bottom side of the shell, and the gas outlet of the primary gas-liquid separator is located on the top side of the shell.

[0007] Further, the barrel section of the oil-gas separator is cylindrical, a partition cylinder is arranged on the inside of the barrel section of the oil-gas separator, the first oil-gas separation core is located in the partition cylinder, an oil outlet and an oil inlet are arranged on the lower sidewall of the barrel section of the oil-gas separator, the convergence inlet, the oil outlet and the oil inlet are all located on the lower sidewall of the barrel section of the oil-gas separator, the height of the oil outlet is lower than the height of the liquid level inside the oil-gas separator, the height of the convergence inlet and the height of the oil inlet are level with the liquid level inside the oil-gas separator, the liquid-gas mixture discharged from the gas outlet of the primary gas-liquid separator enters the inside of the barrel section of the oil-gas separator from the convergence inlet, and the liquid-gas mixture is subjected to secondary gas-liquid coarse separation between the barrel section and the partition cylinder, the micro oil-gas mixture subjected to secondary gas-liquid coarse separation is introduced into the first oil-gas separation core for fine filtration.

[0008] Further, the convergence inlet is connected with a convergence inlet pipeline, the convergence inlet pipeline extends upward and is connected with the liquid outlet of the primary gas-liquid separator.

[0009] Further, the oil outlet is connected with an oil pipeline, the oil pipeline extends upward for a distance and then extends downward to be connected with the cooler.

[0010] Further, the gas pipeline is provided with a second oil-gas separation core, and the second oil-gas separation core is located in front of the minimum pressure valve and is communicated with the secondary oil return pipeline B and the secondary oil return pipeline A.

[0011] Further, the secondary oil return pipeline A is provided with a throttle hole A, and the secondary oil return pipeline B is provided with a throttle hole B.

[0012] Further, the secondary oil return pipeline A is provided with a filter, and the filter is located in front of the throttle hole A.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model discloses a primary gas-liquid separator is arranged between the host computer and the oil-gas separator, and compressed air is coarsely separated once in the primary gas-liquid separator and then is coarsely separated twice in the oil-gas separator, when the compressed air is coarsely separated twice in the oil-gas separator, the compressed air is discharged from the exhaust port of the primary gas-liquid separator, enters the barrel section of the oil-gas separator through the inlet, is separated in the barrel section and the separation cylinder, the oil-gas mixture separated in the barrel section enters the first oil-gas separation core, and the gas-liquid compressed air is coarsely separated twice, so that the residual oil in the gas is greatly reduced, the gas is precisely filtered through the first oil-gas separation core, the residual oil in the gas is greatly reduced after the precise filtering of the first oil-gas separation core, the first oil-gas separation core is in light load, the service life of the first oil-gas separation core is prolonged, the oil content of the gas from the first oil-gas separation core is greatly reduced, the quality of the compressed air is greatly improved, the terminal equipment is not affected by the oil dirt, the service life of the postprocessor such as the filter and the suction dryer is guaranteed, the trace oil filtered through the first oil-gas separation core is sucked back to the air inlet of the host computer through the secondary oil return pipeline A, the oil of the compressor is not quickly consumed, the equipment is normally operated, qualified products are produced, and the customers are low in cost.

[0015] 2. The inlet, the oil inlet and the oil outlet are located on the lower side wall of the oil-gas separator, the height of the oil outlet is lower than the height of the liquid surface in the oil-gas separator, the height of the inlet and the height of the oil inlet are level with the liquid surface in the oil-gas separator, the inner side wall of the separation section between the inlet and the liquid surface of the oil-gas separator is smooth, the inner side wall of the separation section is not blocked by the boss, the separation section is fully separated, and no splash is formed.

[0016] 3. The oil outlet 15 connected oil delivery pipeline 18 extends upward for a distance, the oil filling pipeline also extends upward for a distance, and the inlet connected inlet pipeline also extends upward for a distance, which can prevent the oil in the oil gas separator from overflowing from the oil outlet, the oil filling port or the inlet during maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Structure diagram of the utility model Figure One ;

[0018] Figure 2 Structure diagram of the utility model

[0019] Figure 3 Structure diagram of the utility model Figure Two .

[0020] Brief description of signs: 1- host, 2- primary gas-liquid separator, 3- oil gas separator, 4- air inlet, 5- exhaust port, 6- inlet, 7- liquid outlet, 8- inlet, 9- first oil gas separation core, 10- gas pipeline, 11- cooler, 12- minimum pressure valve, 13- secondary oil return pipeline A, 14- shell, 15- barrel section, 16- spacer, 17- oil outlet, 18- oil filling port, 19- inlet pipeline, 20- oil delivery pipeline, 21- oil filling pipeline, 22- second oil gas separation core, 23- secondary oil return pipeline B, 24- throttle hole A, 25- throttle hole B, 26- filter. DETAILED DESCRIPTION

[0021] Referring to Figure 1 and Figure 2 , a double-stage coarse separation high-efficiency filter compressor includes a host 1, a primary gas-liquid separator 2 and an oil gas separator 3. The exhaust port of the host 1 is communicated with the air inlet 4 of the primary gas-liquid separator 2. The primary gas-liquid separator 2 performs primary gas-liquid separation on the liquid gas mixture. The exhaust port 5 of the primary gas-liquid separator 2 is communicated with the inlet 6 of the oil gas separator 3. The oil gas separator 3 performs secondary gas-liquid separation on the liquid gas mixture. The liquid outlet 7 of the primary gas-liquid separator 2 is communicated with the inlet 8 of the oil gas separator 3. The liquid separated by the primary gas-liquid separation is gathered to the inner bottom of the oil gas separator 3 through the liquid outlet 7. The first oil gas separation core 9 is arranged in the oil gas separator 3. The top side of the first oil gas separation core 9 is connected with the cooler 11 through the gas pipeline 10. The minimum pressure valve 12 is arranged on the gas pipeline 10. The inside of the first oil gas separation core 9 is connected with the air inlet end of the host 1 through the secondary oil return pipeline A 13.

[0022] The utility model discloses a primary gas-liquid separator 2 is added between host computer 1 and oil-gas separator 3, and the compressed air is carried out primary rough division through primary gas-liquid separator 2, and then enters oil-gas separator 3 and carries out secondary rough division, after secondary rough division, gas passes through first oil-gas separation core 9, carries out accurate filtration residual oil after first oil-gas separation core 9, and the trace oil filtered out through first oil-gas separation core 9 is absorbed back to the air inlet end of host computer 1 through secondary oil return pipeline A13 and is recycled, the oil-gas mixture discharged from compressor host computer 1 is carried out primary rough division through primary gas-liquid separator 2, and then is carried out secondary rough division through oil-gas separator 3, compared with only rough division through oil-gas separator 3, the residual oil in compressed air is reduced obviously after two rough divisions, this is favorable to accurate filtration of first oil-gas separation core 9 to compressed air, improves the filtration effect of first oil-gas separation core 9, makes the oil content of gas from first oil-gas separation core 9 drop substantially, through detection, a 22KW normal pressure compressor, under the premise that not changing injection quantity, oil-gas separator 3 etc., only increasing primary gas-liquid separator 2, exhaust oil drops from original nearly 3ppm to about 0.5ppm, substantially improves the quality of compressed air, thereby guaranteeing that first oil-gas separation core 9 is lightly loaded, and service life is long, and the oil of compressor will not be short of oil and be unable to use due to being taken away by air, and terminal equipment will not be affected to use due to oil dirt, and customers will not worry about needing to pay more to buy oil due to oil shortage, and will not pollute the environment or pay more to handle sewage due to exhaust water of gas storage tank containing too much oil.

[0023] In addition, the liquid outlet 7 of the primary gas-liquid separator 2 is connected with the inlet 8 of the oil-gas separator 3, so that the oil of the primary gas-liquid separator 2 can be recycled to the oil-gas separator 3 for repeated use.

[0024] The shell 14 of the primary gas-liquid separator 2 is in a cylindrical shape, the air inlet 4 of the primary gas-liquid separator 2 is located on the upper sidewall of the shell 14, and the air inlet 4 is tangent to the shell 14, the liquid outlet 7 of the primary gas-liquid separator 2 is located on the bottom side of the shell 14, and the air outlet 5 of the primary gas-liquid separator 2 is located on the top side of the shell 14.

[0025] The air inlet 4 of the primary gas-liquid separator 2 is tangent to the shell 14, so that the compressed air enters tangent to the shell 14, and the gas-liquid rotates along the inner wall of the shell 14, the liquid flows down along the wall to the lower half of the shell 14 and is collected, and then is collected into the oil-gas separator 3 through the liquid outlet 7 on the bottom side of the shell 14, and the compressed air after primary rough division is discharged from the air outlet 5 of the primary gas-liquid separator 2 to the oil-gas separator 3.

[0026] The barrel section 15 of the oil-gas separator 3 is cylindrical, and a partition cylinder 16 is arranged on the inner upper side of the barrel section 15 of the oil-gas separator 3, and the first oil-gas separation core 9 is located in the partition cylinder 16. An oil outlet 17 and an oil inlet 18 are arranged on the lower side wall of the barrel section 15 of the oil-gas separator 3. The inlet 8, the oil outlet 17 and the oil inlet 18 are all arranged on the lower side wall of the barrel section 15 of the oil-gas separator 3. The height of the oil outlet 17 is lower than the height of the liquid surface in the oil-gas separator 3. The height of the inlet 8 and the height of the oil inlet 18 are the same as the height of the liquid surface in the oil-gas separator 3. The mixture of gas and liquid discharged from the outlet 5 of the primary gas-liquid separator 2 enters the barrel section 15 of the oil-gas separator 3 through the inlet 6, and is subjected to secondary gas-liquid separation between the barrel section 15 and the partition cylinder 16. The mixture of micro oil gas separated by the secondary gas-liquid separation is subjected to fine filtration in the first oil-gas separation core 9.

[0027] The inlet 8 is connected with an inlet pipe 19 which extends upward and is connected with the liquid outlet 7 of the primary gas-liquid separator 2.

[0028] The oil outlet 17 is connected with an oil pipe 20 which extends upward for a distance and then extends downward and is connected with the cooler 11.

[0029] The inlet 6 is arranged on the upper side wall of the oil-gas separator 3. The oil inlet 18, the inlet 8 and the oil outlet 17 are arranged on the lower side wall of the oil-gas separator 3. The height of the oil outlet 17 is lower than the height of the liquid surface in the oil-gas separator 3. The height of the inlet 8 and the height of the oil inlet 18 are the same as the height of the liquid surface in the oil-gas separator 3. The inner side wall of the separation section between the inlet 6 and the liquid surface of the oil-gas separator 3 is smooth and flat. The inner side wall of the separation section is free of convex and protruding parts which can block the gas-liquid separation. The separation section is fully separated and no splashing is formed.

[0030] In addition, the height of the oil outlet 17 is lower than the height of the liquid surface in the oil-gas separator 3, and the oil pipe 20 connected with the oil outlet 17 extends upward for a distance, so that the oil in the oil-gas separator 3 can not overflow from the oil outlet 17 during maintenance. The oil inlet 18 is connected with an oil inlet pipe 21 which also extends upward for a distance. The inlet pipe 19 connected with the inlet 8 also extends upward for a distance, so that the oil in the oil-gas separator 3 can not overflow from the oil inlet 18 or the inlet 8 during maintenance.

[0031] With reference to Figure 3 , a second oil-gas separation core 22 is arranged on the gas pipe 10 and located in front of the minimum pressure valve 12. The second oil-gas separation core 22 is connected with the secondary oil return pipe A 13 and the secondary oil return pipe B 23.

[0032] A throttle hole A 24 is arranged on the secondary oil return pipe A 13, and a throttle hole B 25 is arranged on the secondary oil return pipe B 23.

[0033] The secondary oil return pipeline A13 is provided with a filter 26 in front of the throttle hole A24.

[0034] By arranging the second oil-gas separation core 22 in front of the minimum pressure valve 12, the compressed air is filtered by the first oil-gas separation core 9 in the oil-gas separator 3 and then filtered again by the second oil-gas separation core 22, so that the filtering effect is further improved, the oil content of the compressed air is reduced, the quality of the compressed air is improved, and the oil filtered by the second oil-gas separation core 22 is recycled and reused through the secondary oil return pipeline B23.

[0035] In the embodiment, the primary gas-liquid separator 2 can also be a blade rotary separator, a spiral separator, or even a filter, and any separator with coarse separation effect can be used.

[0036] In summary, the utility model can perform two-stage coarse separation on the compressed air discharged from the host 1, so that the exhaust content of the compressor is lower when leaving the factory, the service life of the first oil-gas separation core 9 is prolonged, the service life of the post-treatment device such as the filter and the suction dryer is ensured, the terminal equipment is not polluted, the oil of the compressor is not quickly consumed, the compressor can reliably operate, the equipment can normally operate, qualified products can be produced, the user can use at a low cost, and the problem that the condensed water of the compressed air is seriously polluted by oil can be avoided, which is of great significance to high-demand production such as laser cutting, medicine, electronics, and fermentation.

[0037] In addition, in addition to the primary gas-liquid separator 2 arranged between the host 1 and the oil-gas separator 3 as shown in the embodiment, two or more primary gas-liquid separators 2 can be arranged to reduce the oil content entering the oil-gas separator 3.

[0038] The above detailed description is a specific description of the feasible embodiment of the utility model, and the embodiment is not used to limit the patent range of the utility model. Any equivalent implementation or change without departing from the utility model should be included in the patent range of the utility model.

Claims

1. A two-stage, coarsely fractionating, high-efficiency filter compressor, characterized by: The device comprises a host, a primary gas-liquid separator and an oil-gas separator, the exhaust port of the host and the air inlet of the primary gas-liquid separator are communicated, the primary gas-liquid separator performs primary gas-liquid separation on the liquid-gas mixture, the exhaust port of the primary gas-liquid separator and the converging inlet of the oil-gas separator are communicated, the oil-gas separator performs secondary gas-liquid separation on the liquid-gas mixture, the liquid outlet of the primary gas-liquid separator and the converging inlet of the oil-gas separator are communicated, the liquid separated by the primary gas-liquid separation is converged to the inner bottom of the oil-gas separator through the liquid outlet, the first oil-gas separation core is arranged in the oil-gas separator, the top side of the first oil-gas separation core is connected with the gas conveying pipeline and the cooler, the minimum pressure valve is arranged on the gas conveying pipeline, the inside of the first oil-gas separation core is connected with the air inlet of the host through the secondary oil return pipeline A.

2. A two-stage high-efficiency filter compression machine according to claim 1, wherein: The shell of the primary gas-liquid separator is cylindrical, the air inlet of the primary gas-liquid separator is located on the upper side wall of the shell, and the air inlet is tangent to the shell, the liquid outlet of the primary gas-liquid separator is located on the bottom side of the shell, and the exhaust port of the primary gas-liquid separator is located on the top side of the shell.

3. The two-stage high-efficiency filter compression machine of claim 2, wherein: The barrel section of the oil-gas separator is cylindrical, a partition cylinder is arranged on the upper side of the inside of the barrel section, the first oil-gas separation core is located in the partition cylinder, the oil outlet and the oil inlet are arranged on the lower side wall of the barrel section of the oil-gas separator, the converging inlet, the oil outlet and the oil inlet are all located on the lower side wall of the barrel section of the oil-gas separator, the height of the oil outlet is lower than the height of the liquid surface in the oil-gas separator, the height of the converging inlet and the height of the oil inlet are the same as the height of the liquid surface in the oil-gas separator, the liquid-gas mixture discharged from the exhaust port of the primary gas-liquid separator enters the inside of the barrel section of the oil-gas separator from the converging inlet, and performs secondary gas-liquid separation between the barrel section and the partition cylinder, the micro oil-gas mixture separated by the secondary gas-liquid separation enters the first oil-gas separation core for fine filtration.

4. The dual stage coarsely efficient filtration compressor of claim 3, wherein: The converging inlet is connected with a converging inlet pipeline, the converging inlet pipeline extends upward and is connected with the liquid outlet of the primary gas-liquid separator.

5. The two-stage high-efficiency filter compression machine of claim 3, wherein: The oil outlet is connected with an oil conveying pipeline, the oil conveying pipeline extends upward for a distance and then extends downward to be connected with the cooler.

6. The two-stage high-efficiency filter compression machine of claim 3, wherein: A second oil-gas separation core is arranged on the gas conveying pipeline, and the second oil-gas separation core is located in front of the minimum pressure valve, the second oil-gas separation core is communicated with the secondary oil return pipeline A through the secondary oil return pipeline B.

7. The dual stage coarseness high efficiency filtration compressor of claim 6, wherein: A throttling hole A is arranged on the secondary oil return pipeline A, and a throttling hole B is arranged on the secondary oil return pipeline B.

8. The dual stage coarseness high efficiency filtration compressor of claim 7, wherein: A filter is arranged on the secondary oil return pipeline A, and the filter is located in front of the throttling hole A.

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