CN210448185U

CN210448185U - Oil-gas separator with stable operation

Info

Publication number: CN210448185U
Application number: CN201921052729.8U
Authority: CN
Inventors: 唐强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-05-05
Anticipated expiration: 2029-07-08

Abstract

The utility model belongs to the technical field of carbon dioxide transcritical heat pump, a oil and gas separator that operation is stable is disclosed, and its technical scheme main points are including the casing, it goes out oil pipe to have connect on the lateral wall of casing, still sets up the flashboard on shells inner wall including sliding, will go out oil pipe's mouth of pipe shutoff when the flashboard cunning moves to the casing bottom, has connect the floater on the flashboard, has and can effectively avoid gaseous state carbon dioxide to discharge from oil pipe, separates the effect that comes with carbon dioxide and lubricating oil steadily.

Description

Oil-gas separator with stable operation

Technical Field

The utility model relates to a carbon dioxide technical field of transcritical heat pump, in particular to oil and gas separator that operation is stable.

Background

The carbon dioxide transcritical heat pump mainly comprises a transcritical compressor, an expansion valve, an air cooler and an evaporator. In a transcritical system, in a low-pressure part, the suction pressure of a compressor is lower than the critical pressure, the evaporation temperature is also lower than the critical temperature, the heat absorption process of the cycle is still carried out under the subcritical condition, and the heat exchange process is mainly completed by latent heat. However, the exhaust pressure of the compressor is higher than the critical pressure, no phase change exists in a supercritical region, and the pressure and the temperature are independent parameters, so that the limitation that the subcritical cycle is influenced by the environment is overcome. Therefore, the carbon dioxide transcritical refrigeration cycle has the advantage of continuously adjusting the refrigeration capacity within a certain range, and is not greatly influenced by the environment. The technology is mainly applied to the field of indoor heating and cooling.

At present, chinese patent with publication number CN207247550U discloses a compact carbon dioxide air source heat pump water heater, which comprises a base, wherein a heat storage water tank and a main machine of a carbon dioxide air source heat pump are arranged on the base in parallel and longitudinally, an air inlet is formed at the side of the main machine, an air outlet is formed at the top of the main machine, a support for enclosure is formed at the upper end of the main machine, a shell plate is installed in the support, the main machine comprises a compressor, an air cooler, a throttle valve, an evaporator, a circulating water pump, a distribution box and a carbon dioxide pipeline, and a hot water outlet interface is formed at the side wall of the heat.

In this system, the compressor must be operated safely and effectively to prevent the occurrence of liquid agent and lubricant starvation. Lubricating oil plays the lubrication, cooling and sealing effect in the compressor, and lack of lubricating oil will cause serious damage to the compressor, and too much deposit of lubricating oil will cause the heat exchange efficiency decline of heat exchanger at condenser and evaporimeter, influences the efficiency of whole equipment. Therefore, in a relatively large heat pump apparatus, an oil separator is often provided.

At present, chinese patent with publication number CN202177269U discloses an air source heat pump oil-gas separation recoverer, which comprises an inlet pipe, a separator, a filter, an oil return pipe, and an outlet pipe, wherein the separator is provided with a first pipe connection port, a second pipe connection port, and a third pipe connection port, the inlet pipe is connected to the first pipe connection port of the separator, the oil return pipe is connected to the second pipe connection port, the filter is arranged between the tail of the separator and the third pipe connection port, and the outlet pipe is connected to the third pipe connection port of the separator.

The oil-gas separator is arranged between the gas-liquid separator and the compressor, gaseous carbon dioxide is separated from liquid carbon dioxide in the gas-liquid separator and is reintroduced into the compressor for circulation, and the liquid carbon dioxide and the lubricating oil are mixed together and are introduced into the oil-gas separator. In the process, the carbon dioxide absorbs the environmental heat and is gradually gasified, and the lubricating oil can naturally settle by utilizing the difference of density, so that the lubricating oil is effectively separated from the gaseous carbon dioxide.

In actual use, the volume of the carbon dioxide is greatly increased when the carbon dioxide is converted from a liquid state to a gaseous state. In case the untimely condition of outlet duct exhaust carbon dioxide appears, a large amount of gaseous carbon dioxide stops in oil and gas separator's casing, can make the atmospheric pressure in the casing sharply rise, leads to lubricating oil to be discharged by an oil pipe rapidly, and the mouth of pipe that is less than an oil pipe until the liquid level in the casing finally leads to gaseous carbon dioxide to discharge from an oil pipe, and oil-gas separation fails.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an oil and gas separator that operation is stable has and can effectively avoid gaseous state carbon dioxide to discharge from an oil pipe, stably separates the advantage that comes with carbon dioxide and lubricating oil.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides an oil and gas separator that operation is stable, includes the casing, it has the oil pipe to connect on the lateral wall of casing, still including the flashboard of slip setting on shells inner wall, with the mouth of pipe shutoff of oil pipe when the flashboard slips to the casing bottom, connect the floater on the flashboard.

By adopting the technical scheme, when the liquid level in the shell of the oil-gas separator is maintained at a normal height, the floating ball pulls the flashboard to suspend above the orifice of the oil outlet pipe; when the air pressure in the shell rises suddenly and the lubricating oil is discharged rapidly, the floating ball descends along with the liquid level in the shell, the flashboard sinks at the bottom of the shell to plug the pipe orifice of the oil outlet pipe, the lubricating oil cannot be discharged from the oil outlet pipe at the moment, and the liquid level in the shell is also higher than the pipe orifice of the oil outlet pipe all the time; can effectively avoid gaseous carbon dioxide to discharge from the oil outlet pipe, stably separate carbon dioxide and lubricating oil.

Furthermore, the inner wall of the shell is erected with a partition plate, the axis of the partition plate is vertical, and the partition plate is arranged around the flashboard and the floating ball.

Through adopting above-mentioned technical scheme, carbon dioxide also can drive lubricating oil and turn over and gush when breaking away from lubricating oil in the casing gasification, so set up the baffle, including gate and floater encircle, the inboard liquid level of baffle is comparatively steady, can reduce effectively that the floater receives the impact.

Furthermore, a plurality of flow stabilizing plates are arranged at the top end of the partition plate and are arranged in the vertical direction, the flow stabilizing plates are positioned at the inner side of the partition plate, and the flow stabilizing plates are mutually crossed and arranged in a net shape.

By adopting the technical scheme, gaseous carbon dioxide in the shell is relatively disordered when flowing, so that the reticular flow stabilizing plate is arranged on the inner side of the top end of the partition plate, the airflow flows smoothly after rushing into the inner side of the partition plate, and the phenomenon that the airflow directly drives the liquid level on the inner side of the partition plate to turn over is avoided.

Furthermore, an opening expanding plate is arranged at the bottom end of the partition plate.

Through adopting above-mentioned technical scheme, bottom lubricating oil receives the influence that the air current strikes less, and the undercurrent is few, sets up the cross-sectional area that the flaring board can this department of greatly increased in the baffle bottom, and after the inboard lubricating oil of baffle was discharged by the oil pipe, the lubricating oil in the baffle outside can supply rapidly, and the velocity of flow is more slow, can not form too big impact to the inboard lubricating oil of baffle.

Furthermore, the flashboard is connected with an anti-falling rope, and one end of the anti-falling rope, which faces away from the flashboard, is connected with the bottom surface of the shell.

Through adopting above-mentioned technical scheme, the anticreep rope links to each other flashboard and casing bottom surface, when avoiding the liquid level in the casing too high, the floater pulls the flashboard and breaks away from with shells inner wall.

Further, be equipped with the left-hand thread board on the inner wall of casing, the left-hand thread board sets up in pairs in the mouth of pipe both sides of going out oil pipe, and the left-hand thread board sets up along vertical direction, and the L type is personally submitted in the transversal of left-hand thread board, and the opening sets up relatively, the both sides limit of flashboard cooperates with left-hand thread board grafting respectively.

Through adopting above-mentioned technical scheme, the left-hand thread board sets up in pairs in the flashboard both sides, and the flashboard sinks the back and inserts between two left-hand thread boards for the leakproofness greatly increased of this department, the flashboard can be effectively plug up the mouth of pipe of oil pipe.

Further, an annular groove has been seted up to one side in flashboard casing axle center dorsad, the recess is coaxial with the mouth of pipe that goes out oil pipe, is equipped with sealing ring and spring in the recess, the internal diameter of sealing ring is less than the internal diameter of going out oil pipe, and the external diameter of sealing ring is greater than the internal diameter of going out oil pipe, and the one end of sealing ring lateral wall dorsad recess bottom is equipped with the chamfer, spring one end offsets with the sealing ring, and the other end offsets with the tank bottom of recess.

By adopting the technical scheme, when the sealing ring is opposite to the inner wall of the shell, the spring is in a compressed state, when the flashboard sinks and the sealing ring is opposite to the pipe orifice of the oil outlet pipe, the spring drives the sealing ring to partially eject from the groove and abut against the pipe orifice of the oil outlet pipe, and the tail end of the sealing ring is provided with the chamfer angle, so that the part of the sealing ring is embedded in the oil outlet pipe to better plug the oil outlet pipe; then the floating ball pulls the flashboard to float upwards, and the pipe orifice of the oil outlet pipe applies inclined pressure to the sealing ring to enable the sealing ring to retract into the groove.

Furthermore, an elastic sealing ring is arranged at the pipe orifice of the oil outlet pipe.

Through adopting above-mentioned technical scheme, set up the elasticity sealing washer, with the gap filling between the pipe wall of oil pipe and the sealing ring terminal surface, further strengthen the leakproofness of this department.

To sum up, the utility model discloses following beneficial effect has:

1. the gaseous carbon dioxide can be effectively prevented from being discharged from the oil outlet pipe, and the carbon dioxide and the lubricating oil can be stably separated;

2. the liquid level in the inner side of the partition plate is stable, lubricating oil is not easy to surge, the impact on the floating ball is less, and the side deviation is not easy.

Drawings

FIG. 1 is an overall sectional view of the embodiment;

FIG. 2 is a schematic view showing the connection between the gate plate and the flow line in the embodiment;

FIG. 3 is a schematic structural view of a shutter according to an embodiment.

In the figure, 1, a housing; 2. an oil outlet pipe; 3. a shutter plate; 4. a floating ball; 5. a partition plate; 6. an inlet tube; 7. an air outlet pipe; 11. a reverse buckle plate; 12. a sliding seat; 21. an elastic sealing ring; 31. an anti-drop rope; 32. a groove; 33. a seal ring; 34. a spring; 35. a slide bar; 51. a flow stabilizer; 52. and (4) an opening expanding plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

an oil-gas separator with stable operation is shown in figure 1 and comprises a cylindrical shell 1, wherein the axis of the shell 1 is vertical, the top of the side wall of one side of the shell is connected with an inlet pipe 6, the top of the side wall of the other side of the shell is connected with an outlet pipe 7, and the bottom of the side wall of the other side of the shell is connected with an oil outlet pipe 2.

The mixture of carbon dioxide and lubricating oil flows from the introduction pipe 6 into the interior of the housing 1, and is separated inside the housing 1. The lubricating oil with high density is deposited at the bottom of the shell 1 and is discharged from the oil outlet pipe 2, and the gaseous carbon dioxide with low density is discharged from the gas outlet pipe 7.

As shown in fig. 1 and 2, an arc-shaped shutter 3 is arranged on the inner wall of the casing 1, and the axis of the shutter 3 is vertical and is tightly attached to the inner wall of the casing 1. The flashboard 3 slides along the vertical direction and is arranged on the inner wall of the shell 1, the sliding track of the flashboard 3 passes through the pipe orifice of the oil outlet pipe 2, and the flashboard 3 is connected with a floating ball 4.

As shown in fig. 2, sliding seats 12 are fixedly arranged on the inner wall of the housing 1, and the sliding seats 12 are arranged on two sides of the shutter 3 in pairs. Slide bars 35 are respectively fixedly connected to two sides of the gate plate 3, and the slide bars 35 penetrate through the corresponding sliding seats 12 along the vertical direction and are in sliding fit with each other.

As shown in FIG. 2, the bottom end of the gate plate 3 is connected with an anti-slip rope 31, the bottom end of the anti-slip rope 31 is fixedly connected with the bottom surface of the shell 1, and the sliding rod 35 is prevented from completely separating from the sliding seat 12.

As shown in fig. 2, the inner wall of the casing 1 is fixedly provided with a reverse buckling plate 11, the reverse buckling plate 11 is arranged along the vertical direction, the cross section of the reverse buckling plate is L-shaped, and the reverse buckling plate is arranged at two sides of the pipe orifice of the oil outlet pipe 2 in pairs, and the openings of the reverse buckling plate are opposite. When the flashboard 3 sinks to the pipe orifice of the oil outlet pipe 2, two side edges of the flashboard are respectively in inserted connection and matching with the two reverse buckling plates 11.

As shown in fig. 3, an annular groove 32 is formed on the side of the gate plate 3 facing away from the axis of the casing 1, and when the gate plate 3 blocks the nozzle of the oil outlet pipe 2, the groove 32 is coaxial with the nozzle of the oil outlet pipe 2.

As shown in fig. 3, a sealing ring 33 is slidably disposed in the groove 32, and a plurality of springs 34 are disposed between the sealing ring and the bottom of the groove 32. The spring 34 is disposed in a radial direction of the housing 1 in a compressed state. In addition, the inner diameter of the sealing ring 33 is smaller than the inner diameter of the oil outlet pipe 2, the outer diameter is larger than the inner diameter of the oil outlet pipe 2, and the end of the outer side wall thereof, which faces away from the bottom of the groove 32, is provided with a chamfer.

When the sealing ring 33 is aligned with the mouth of the flowline 2, it slides towards the flowline 2 under the force of the spring 34, with the end portion of its sealing ring 33 engaging the mouth of the flowline 2, plugging it.

As shown in fig. 3, an elastic sealing ring 21 is laid on the inner wall of the nozzle of the oil outlet pipe 2 for enhancing the sealing performance at the position.

As shown in fig. 1, a partition plate 5 is fixedly connected to the inner wall of the housing 1, the axis of the partition plate 5 is vertical, the whole body is arc-shaped, and structures such as the gate plate 3 and the floating ball 4 are surrounded inside. The liquid level inside the clapboard 5 is calmer due to the obstruction of the clapboard 5, and the floating ball 4 is not impacted violently and is not easy to shift laterally.

As shown in fig. 1 and 2, a plurality of flow stabilizing plates 51 are overlapped between the top end of the inner side wall of the partition plate 5 and the housing 1, and each flow stabilizing plate 51 is arranged in the vertical direction, is intersected with each other, is in a net shape as a whole, and is used for guiding gaseous carbon dioxide to smoothly flow into the inner area of the partition plate 5.

As shown in fig. 1, a flaring plate 52 is fixedly connected to the bottom end of the partition plate 5, the flaring plate 52 is arranged along the circumferential direction of the partition plate 5, both ends of the flaring plate 52 are also fixedly connected to the inner wall of the shell 1, and the aperture of the bottom end of the flaring plate 52 is larger than that of the top end of the flaring plate.

The specific implementation process comprises the following steps:

when the liquid level in the oil-gas separator shell 1 is maintained at a normal height, the floating ball 4 pulls the flashboard 3 to suspend above the orifice of the oil outlet pipe 2. When the pressure in the shell 1 rises suddenly to cause the lubricating oil to be discharged rapidly, the floating ball 4 descends along with the liquid level in the shell 1, the flashboard 3 sinks at the bottom of the shell 1, and the pipe opening of the oil outlet pipe 2 is blocked. At this time, the lubricant cannot be discharged from the oil outlet pipe 2, and the liquid level in the casing 1 is always higher than the orifice of the oil outlet pipe 2.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides an operation stable oil and gas separator, includes casing (1), it has oil pipe (2) to connect on the lateral wall of casing (1), its characterized in that: still including slide setting flashboard (3) on casing (1) inner wall, flashboard (3) slide with the mouth of pipe shutoff of oil pipe (2) when casing (1) bottom, connect floater (4) on flashboard (3).

2. An oil-gas separator stable in operation according to claim 1, wherein: the inner wall of the shell (1) is erected with a partition plate (5), the axis of the partition plate (5) is vertical, and the partition plate (5) surrounds the flashboard (3) and the floating ball (4).

3. An oil-gas separator stable in operation according to claim 2, wherein: the novel water purifier is characterized in that a plurality of flow stabilizing plates (51) are arranged at the top end of the partition plate (5), the flow stabilizing plates (51) are arranged in the vertical direction, the flow stabilizing plates (51) are located on the inner side of the partition plate (5), and the flow stabilizing plates (51) are mutually crossed and arranged in a net shape.

4. An oil-gas separator stable in operation according to claim 2, wherein: the bottom end of the clapboard (5) is provided with an expanding plate (52).

5. An oil-gas separator stable in operation according to claim 1, wherein: have connect anticreep rope (31) on flashboard (3), anticreep rope (31) are continuous with casing (1) bottom surface dorsad flashboard (3) one end.

6. An oil-gas separator stable in operation according to claim 1, wherein: be equipped with anti-buckle board (11) on the inner wall of casing (1), anti-buckle board (11) set up in pairs in the mouth of pipe both sides of going out oil pipe (2), and anti-buckle board (11) set up along vertical direction, and the transversal L type of personally submitting of anti-buckle board (11), and the opening sets up relatively, the both sides limit of flashboard (3) cooperates with anti-buckle board (11) grafting respectively.

7. An oil-gas separator stable in operation according to claim 1, wherein: annular groove (32) have been seted up to one side in flashboard (3) dorsad casing (1) axle center, recess (32) are coaxial with the mouth of pipe that goes out oil pipe (2), are equipped with sealing ring (33) and spring (34) in recess (32), the internal diameter of sealing ring (33) is less than the internal diameter that goes out oil pipe (2), and the external diameter of sealing ring (33) is greater than the internal diameter that goes out oil pipe (2), and the one end of sealing ring (33) lateral wall dorsad recess (32) bottom is equipped with the chamfer, spring (34) one end offsets with sealing ring (33), and the tank bottom of the other end and recess (32) offsets.

8. An oil-gas separator stable in operation according to claim 7, wherein: and an elastic sealing ring (21) is arranged at the pipe orifice of the oil outlet pipe (2).