CN109854476B - Dynamic air inlet liquid conveying device - Google Patents
Dynamic air inlet liquid conveying device Download PDFInfo
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- CN109854476B CN109854476B CN201910244781.1A CN201910244781A CN109854476B CN 109854476 B CN109854476 B CN 109854476B CN 201910244781 A CN201910244781 A CN 201910244781A CN 109854476 B CN109854476 B CN 109854476B
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Abstract
The invention relates to a dynamic air-liquid feeding device, which comprises an air-liquid feeding adjusting component, wherein the air-liquid feeding adjusting component comprises a rotating shaft, the inside of the rotating shaft is provided with an air-liquid feeding channel which is axially arranged, two ends of the rotating shaft respectively penetrate through the front side wall and the rear side wall of a shell and are rotatably arranged, one end of the rotating shaft penetrates out of the shell to form an air-liquid outlet, and the other end of the rotating shaft penetrates out of the shell and is in driving connection with an external power device to drive the rotating shaft to rotate; the rotating shaft is also circumferentially provided with at least two openings communicated with the gas-liquid conveying channels at intervals, the openings are provided with gas-liquid conveying pipes which are radially arranged, each gas-liquid conveying pipe penetrates through the gas-liquid outlet through the opening and the gas-liquid conveying channel, and gas-phase medium positioned in the upper area of the gas-liquid mixing cavity and liquid-phase medium positioned in the lower area of the gas-liquid mixing cavity can be sequentially sucked in the process of rotating along with the rotating shaft. The dynamic air inlet liquid conveying device is not influenced by the specific gravity of the gas and the liquid or the liquid level of the gas and the liquid, and can realize effective mixed conveying of the gas and the liquid.
Description
Technical Field
The invention relates to the technical field of fluid conveying, in particular to a dynamic air inlet liquid conveying device.
Background
In the fluid conveying process in the industrial field, a gas-liquid mixing conveying pump is often adopted to convey gas-liquid mixed fluid, such as the conveying process of crude oil and natural gas, liquid CO2 and CO2 gas, water and compressed air, nitrogen and water, shale gas and water and other mixed fluid, especially in the oil extraction production process, the extracted crude oil often contains rich natural gas, namely the medium to be conveyed in the oil extraction is not only liquid phase medium-crude oil, but also gas phase medium-natural gas. In the crude oil and natural gas transportation technology of an oil field, at present, a separator and a storage tank are generally arranged on site, and gas-liquid mixing transportation is carried out through a rotary centrifugal vortex pump, a screw pump, a rotor pump or a reciprocating plunger (piston).
In the actual gas-liquid mixing and conveying process, a gas-liquid conveying site can only convey a part of gas to be burned according to different winter and summer seasons, and the gas-liquid mixing and conveying site is influenced by different gas-liquid ratios, compression ratios, output pressure gas-liquid positions and other conditions in the gas-liquid conveying process, so that a mixing and conveying pump generally generates different conveying barriers. The pure gas is conveyed only by a compressor, and the mixed conveying pump is difficult to realize, and when the mixed conveying pump is used for conveying all liquid, the operation condition of the mixed conveying pump often exceeds the design parameters, and particularly the influence on a flow channel is great. Because the design of the gas-liquid mixing and conveying pump needs to consider that part of the gas is gas and the gas is compressible, the design can not be carried out according to the whole liquid during the design, otherwise, the meaning of the gas-liquid mixing and conveying is lost, and the existing mixing and conveying pump can not completely meet the requirements of the gas-liquid working condition for operation and conveying. In addition, the liquid conveyed in the oilfield site can carry a certain amount of solids and impurities, and the liquid enters the pump cavity after being filtered, otherwise, the inner cavity moving part of the pump can be blocked normally, so that the pump can not work normally in a suction mode.
Disclosure of Invention
The invention aims to solve the technical problem of providing a dynamic air inlet liquid conveying device which is not influenced by the specific gravity of gas and liquid or the liquid level of the gas and liquid so as to realize effective mixed conveying of the gas and the liquid.
The technical scheme adopted for solving the technical problems is as follows: the dynamic air-liquid inlet conveying device comprises a shell with a gas-liquid mixing cavity and a gas-liquid conveying adjusting assembly arranged in the gas-liquid mixing cavity, wherein a gas-liquid inlet communicated with the gas-liquid mixing cavity is formed in the shell; the gas-liquid conveying adjusting assembly comprises a rotating shaft, wherein the rotating shaft is internally provided with a gas-liquid conveying channel which is axially arranged, two ends of the rotating shaft respectively penetrate through the front side wall and the rear side wall of the shell and are rotatably arranged, one end of the rotating shaft penetrates out of the shell to form a gas-liquid outlet which is used for being communicated with a liquid inlet cavity of a hydraulic end of the reciprocating pump, and the other end of the rotating shaft penetrates out of the shell and is in driving connection with an external power device to drive the rotating shaft to rotate; the rotary shaft is also circumferentially provided with at least two openings communicated with the gas-liquid conveying channels at intervals, the openings are provided with gas-liquid conveying pipes which are radially arranged, and each gas-liquid conveying pipe penetrates through the gas-liquid outlet through the opening and the gas-liquid conveying channel and can sequentially suck gas-phase medium positioned in the upper area of the gas-liquid mixing cavity and liquid-phase medium positioned in the lower area of the gas-liquid mixing cavity in the process of rotating along with the rotary shaft.
As an improvement, the external power device comprises a pump shaft connected with a power source of the reciprocating pump, and the tail end of the pump shaft is in driving connection with the rotating shaft through a speed reduction transmission mechanism. The structure arrangement ensures that the rotary motion of each gas-liquid conveying pipe connected on the rotary shaft can be provided by the pump shaft at the power end of the reciprocating pump without additionally adding power equipment, the gas-liquid conveying pipe can be conveniently assembled and matched on the reciprocating pump, the production cost can be effectively reduced, the whole structure of the equipment is more compact, and the occupied area of the equipment is reduced; and secondly, the high-speed rotation of the pump shaft of the reciprocating pump can be effectively converted into slow rotation suitable for each gas-liquid conveying pipe to dynamically feed gas liquid by the arrangement of the speed reduction transmission mechanism.
In order to make the rotation of the rotation shaft smoother and reduce the vibration and noise of equipment operation, the speed reduction transmission mechanism comprises a worm in driving connection with the pump shaft and a worm wheel sleeved at the end part of the rotation shaft and used for driving the rotation shaft to rotate, and the worm is in driving connection with the worm wheel.
As an improvement, the tail end of the pump shaft is provided with a driving bevel gear which can coaxially rotate along with the pump shaft, the worm is sleeved with a driven bevel gear which can drive the worm to rotate, and the driving bevel gear is meshed with the driven bevel gear. Through the cooperation of initiative bevel gear with driven bevel gear, can make the pump shaft effectively drive worm rotate, and the axial lead of pump shaft and the axial lead of worm can be 90 degrees setting, and it can make between each equipment of reciprocating pump reasonable spatial arrangement better, makes whole device compacter.
In order to improve the stability of the speed reduction transmission mechanism in the transmission process, the speed reduction transmission mechanism is arranged in a transmission box body, the transmission box body is assembled and welded on the shell, and two ends of the worm are respectively fixed in the transmission box body through a first bearing and a second bearing.
In order to improve the stability of the rotating shaft in the rotating process, a third bearing and a fourth bearing are respectively arranged at two ends of the rotating shaft, and a third bearing seat for fixing the third bearing and a fourth bearing seat for fixing the fourth bearing are correspondingly arranged on the front side wall and the rear side wall of the shell; the outer side of the third bearing seat is connected with a liquid outlet flange with a gas-liquid flow channel, and one end of the rotating shaft penetrates through the third bearing and the third bearing seat and then is communicated with the gas-liquid flow channel of the liquid outlet flange; the other end of the rotating shaft penetrates through the fourth bearing and the fourth bearing seat and then is connected with the worm wheel.
As an improvement, a filter screen for filtering the medium flowing from the gas-liquid inlet is further arranged in the shell, the gas-liquid mixing cavity of the shell is divided into a first cavity before filtering and a second cavity after filtering by the filter screen, and the gas-liquid conveying pipe is positioned in the second cavity. When fluid is conveyed, solid impurities inevitably exist, particularly when oil is conveyed on the oilfield site, a certain amount of solids and impurities are contained in the oil, and the oil is filtered through the filter screen before entering the pump cavity, so that the moving parts in the inner cavity of the reciprocating pump can be effectively prevented from being blocked, and the phenomenon that the reciprocating pump cannot normally suck is avoided.
As an improvement, the filter screen is a filter screen body with an inner cavity, the overall shape of the filter screen body is similar to that of the shell, the area between the filter screen body and the shell forms the first cavity, and the inner cavity of the filter screen body forms the second cavity; the two ends of the rotating shaft penetrate out of the filter screen body and are connected to the shell. The adoption has the filter screen body of inner chamber to filter gas-liquid fluid, can effectively increase filtration area, and the filter screen is difficult to take place to block up to each gas-liquid conveyer pipe can conveniently locate in the inner chamber of filter screen body and carry out rotary motion, and this kind of structure sets up the inner chamber space that can the rational utilization casing, reduces whole gas-liquid conveyer's volume.
As an improvement, the shell comprises a shell body and a cover body covered on the shell body, and the cover body is detachably connected with a cock cap; the upper end of the filter screen body is provided with a flushing hole at a position corresponding to the plug cap, the flushing hole is connected with a positioning cover shaft with a flushing flow passage, and the bottom end of the plug cap is provided with a positioning blind hole for inserting the top end of the positioning cover shaft; the bottom of the shell is connected with a drain manifold communicated with the first chamber. The structure is arranged, the filter screen body can be pressed and fixed at the upper end of the shell, so that the stability of the filter screen body is greatly improved, and the filter screen body can be firmly positioned in the shell of the gas-liquid conveying device. In addition, the flushing hole is arranged, after the pump is stopped, the cleaning pressure is released, the cock cap is opened, the cleaning pipeline is inserted into the cleaning pipeline to back flush the inner cavity of the filter screen body, and the impurities after flushing can be discharged through the drain manifold.
As an improvement, the gas-liquid inlet of the shell is connected with a liquid inlet suction device, the liquid inlet suction device comprises a cylinder body with an inner cavity, a liquid inlet pipeline penetrating the cylinder body and an air inlet pipeline connected to the cylinder body, the periphery of the liquid inlet pipeline forms a gas buffering runner communicated with the air inlet pipeline, the liquid inlet pipeline comprises horizontal liquid inlet sections and horizontal liquid outlet sections which are respectively positioned at two ends, and an inclined section connected between the horizontal liquid inlet sections and the horizontal liquid outlet sections, the inclined section extends upwards from the horizontal liquid inlet sections to the horizontal liquid outlet sections, forms a jet orifice with a runner port gradually reduced at the connection position with the horizontal liquid outlet sections, and a suction hole is further formed at the connection position of the inclined section and the horizontal liquid outlet sections; the air inlet pipeline is sequentially provided with a one-way valve and a filter plate along the flowing direction of the air. By means of the structure, the gas-liquid can form a pressure state that liquid and air pressure are equal or the hydraulic pressure is larger than the air pressure at the air suction hole of the liquid inlet pipeline, so that the gas can be sucked into the gas-liquid mixing cavity of the shell through the jet velocity of the liquid, the purpose of gas-liquid simultaneous conveying is achieved, and in addition, the one-way valve and the filter plate in the air inlet pipeline can effectively prevent the liquid from being strung into the air inlet pipeline.
Compared with the prior art, the invention has the advantages that: the gas-liquid conveying pipes of the dynamic gas-liquid conveying device can rotate along with the rotating shaft, gas-phase medium positioned in the upper area of the gas-liquid mixing cavity and liquid-phase medium positioned in the lower area of the gas-liquid mixing cavity can be sequentially sucked in the rotating process, wherein the gas-liquid conveying pipes can sequentially extend into the gas-phase medium and the liquid-phase medium and are positioned at different height positions in the rotating process along with 360 DEG of the rotating shaft, so that gas and liquid media can be continuously sucked, and the gas and liquid can be conveyed into the liquid inlet cavity of the hydraulic end of the reciprocating pump through the gas-liquid conveying channel of the rotating shaft after being mixed, thereby achieving the purpose of conveying gas and liquid under the dynamic condition. The gas and liquid are dynamically sucked in the rotation process through each gas and liquid conveying pipe, so that conveying barriers caused by the influence of different gas and liquid specific gravities or gas and liquid levels on the reciprocating pump can be effectively overcome, and effective mixed conveying of the gas and the liquid is realized.
Drawings
FIG. 1 is a schematic diagram of a dynamic air-liquid feeding device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a part of a dynamic air-intake liquid conveying device according to an embodiment of the present invention;
FIG. 3 is a schematic view of a liquid inlet flange of a dynamic air-liquid inlet conveying device according to an embodiment of the present invention;
FIG. 4 is a front view of a housing of a dynamic gas-liquid delivery device according to an embodiment of the present invention;
FIG. 5 is a side view of a housing of a dynamic gas-liquid delivery device according to an embodiment of the present invention;
fig. 6 is a block diagram of a liquid intake and suction device of a dynamic liquid intake conveying device according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Referring to fig. 1-6, a dynamic air-liquid feeding device comprises a housing 10 with a gas-liquid mixing cavity 100 and a gas-liquid feeding adjusting component arranged in the gas-liquid mixing cavity 100, wherein the housing 10 is provided with a gas-liquid inlet communicated with the gas-liquid mixing cavity 100, the gas-liquid feeding adjusting component comprises a rotating shaft 20 with an axially arranged gas-liquid feeding channel 210 inside, two ends of the rotating shaft 20 respectively penetrate through the front side wall and the rear side wall of the housing 10 to be rotatably arranged, one end of the rotating shaft 20 penetrates out of the housing 10 to form a gas-liquid outlet communicated with a liquid inlet cavity of a hydraulic end of a reciprocating pump, and the other end penetrates out of the housing 10 and is in driving connection with an external power device to drive the rotating shaft 20 to rotate; the rotating shaft 20 is further provided with at least two openings (not shown) which are communicated with the gas-liquid conveying channels 210 at intervals in the circumferential direction, the openings are provided with gas-liquid conveying pipes 23 which are radially arranged, the gas-liquid conveying pipes 23 penetrate through the gas-liquid outlets through the openings and the gas-liquid conveying channels 210, and can sequentially suck gas-phase media positioned in the upper area of the gas-liquid mixing cavity 100 and liquid-phase media positioned in the lower area of the gas-liquid mixing cavity 100 in the process of rotating along with the rotating shaft 20, namely, the rotating shaft 20 can rotate around the axis of the rotating shaft 20 under the drive of an external power device, and then all the gas-liquid conveying pipes 23 connected to the rotating shaft 20 are driven to rotate together, and all the gas-liquid conveying pipes 23 can sequentially stretch into the gas-phase media and the liquid-phase media in the process of 360-degree rotation along with the rotating shaft 20 and are positioned at different height positions, so that gas and liquid can be continuously sucked, and mixed and then sent into the liquid inlet cavity of the reciprocating pump hydraulic end through the gas-liquid conveying channels 210 of the rotating shaft 20, and the purpose of delivering gas and liquid under dynamic conditions is achieved.
Referring to fig. 1 and 3, in order to improve stability of the rotating shaft 20 during rotation, the two ends of the rotating shaft 20 are further provided with a third bearing 51 and a fourth bearing 52 respectively, the front and rear side walls of the housing 10 are correspondingly provided with a third bearing seat 53 for fixing the third bearing 51 and a fourth bearing seat 54 for fixing the fourth bearing 52, specifically, grooves for placing corresponding bearings are formed on the third bearing seat 53 and the fourth bearing seat 54, a liquid outlet flange 55 with a gas-liquid flow channel 550 is further connected to the outer side of the third bearing seat 53, one end of the rotating shaft 20 passes through the third bearing 51 and the third bearing seat 53 and then is communicated with the gas-liquid flow channel 550 of the liquid outlet flange 55, and then, specifically, the front end surface of the liquid outlet flange 55 can be connected with a flange of a suction end of a reciprocating pump through bolts, the rear end surface of the liquid outlet flange 55 is provided with a first step 551 for axially limiting the rotating shaft 20, a wear sleeve is arranged on the first step 551 to be in clearance fit with the end of the rotating shaft 20, and the other end of the rotating shaft 20 passes through the fourth bearing 52 and the fourth bearing seat 54 and then is connected with a worm gear 42.
The external power device may be a conventional power device as long as the power device can effectively drive the rotation shaft 20 to rotate, and in this embodiment, the external power device may use the power source of the reciprocating pump to drive the rotation shaft 20 to rotate, and the external power device includes a pump shaft 30 connected with the power source of the reciprocating pump, and the end of the pump shaft 30 is in driving connection with the rotation shaft 20 through a reduction transmission mechanism. In the present embodiment, the rotation motion of each gas-liquid conveying pipe 23 connected to the rotation shaft 20 can be provided by the pump shaft 30 at the power end of the reciprocating pump, without adding additional power equipment, which can be assembled and matched on the reciprocating pump conveniently, thus effectively reducing the production cost, making the whole structure of the equipment more compact and reducing the occupied area of the equipment; secondly, the arrangement of the speed reduction transmission mechanism can effectively convert the rapid rotation of the pump shaft 30 of the reciprocating pump into the slow rotation motion suitable for each gas-liquid conveying pipe 23 to dynamically feed gas liquid, as shown in fig. 1.
Referring to fig. 1 and 2, the reduction transmission mechanism includes a worm 41 in driving connection with the pump shaft 30 and a worm wheel 42 sleeved at the end of the rotating shaft 20 to drive the rotating shaft 20 to rotate, wherein the worm 41 is in driving connection with the worm wheel 42, the number of teeth of the worm wheel 42 can be set according to the rotation speed required by the rotating shaft 20, a second step 221 is arranged at the end of the rotating shaft 20, the worm wheel 42 is arranged on the second step 221 and is in driving fit through a key slot, and a locking cap 420 is further arranged at the end of the rotating shaft 20 to be matched with the second step 221 to fix the worm wheel 42. In this embodiment, the worm wheel 42 and the worm 41 are adopted to be matched with a speed reduction transmission structure, so that the rotation of the rotation shaft 20 is smoother, vibration and noise of equipment operation are reduced, more specifically, a driving bevel gear 43 capable of coaxially rotating along with the pump shaft 30 is arranged at the tail end of the pump shaft 30, a driven bevel gear 44 capable of driving the worm 41 to rotate is sleeved on the worm 41, and the driving bevel gear 43 is meshed with the driven bevel gear 44. Through the cooperation of initiative bevel gear 43 and driven bevel gear 44, can make the effective drive worm 41 of pump shaft 30 rotate, and the axial lead of pump shaft 30 and the axial lead of worm 41 can be 90 degrees setting to, the axial lead of worm 41 is 90 degrees setting with the central line at worm wheel and axis of rotation 20 place, can make the reasonable spatial arrangement of carrying out between each equipment of reciprocating pump better like this, makes the structure of whole device compacter.
Referring to fig. 1, in order to improve stability of the reduction gear mechanism in the transmission process, the reduction gear mechanism is disposed in a transmission case 45, two ends of the worm 41 are respectively fixed in the transmission case 45 through a first bearing 46 and a second bearing 47, specifically, the transmission case is a five-sided body, a front surface is attached to the case 10, and is formed into an integral piece by electric welding, one side surface is provided with a first bearing seat 461 for fixing the first bearing 46, the first bearing seat 461 is capable of being assembled and welded on the transmission case 45, an outer end of the first bearing seat 461 is also provided with a bearing gland 462 for limiting axial movement of the bearing and the worm 41, an outer wall of the case 10 is also provided with a second bearing seat 471 for fixing the second bearing 47, specifically, the second bearing seat 471 is assembled and welded on the case 10 and is located in the transmission case 45, so as to fix the other end of the worm 41, a rectangular window (not shown) is also provided at the top of the transmission case 45, the rectangular window can be used for mounting the worm 42, the worm 41 and various components in the transmission case 45, and the rectangular window can be used for setting up various oil level components in the transmission case 45. In addition, a fifth bearing seat 32 is further arranged on the transmission case 45, wherein a fifth bearing 31 is sleeved at the end part of the pump shaft 30, the pump shaft 30 penetrates through the fifth bearing seat 32 to extend into the transmission case 45 to be connected with a driving bevel gear 43, and an oil seal 33 is further arranged between the pump shaft 30 and the fifth bearing 31 seat 32.
Referring to fig. 1, a filter screen 60 for filtering the medium flowing from the gas-liquid inlet is further disposed in the housing 10, the filter screen 60 divides the gas-liquid mixing chamber 100 of the housing 10 into a first chamber 101 before filtering and a second chamber 102 after filtering, and the gas-liquid conveying pipe 23 is disposed in the second chamber 102. When the fluid is conveyed, solid impurities inevitably exist, particularly when oil is conveyed on the oilfield site, a certain amount of solids and impurities are contained in the oil, and the oil is filtered through the filter screen 60 before entering the pump cavity, so that the moving parts in the inner cavity of the reciprocating pump can be effectively prevented from being blocked, and the phenomenon that the reciprocating pump cannot normally suck is avoided. In this embodiment, the filter screen 60 is a filter screen body with an inner cavity, the overall shape of the filter screen body is similar to that of the shell 10, a first cavity 101 is formed in a region between the filter screen body and the shell 10, a second cavity 102 is formed in an inner cavity of the filter screen body, two ends of the rotating shaft 20 penetrate through the filter screen body and then are connected to the shell 10, wherein the filter screen body with the inner cavity is adopted to filter gas-liquid fluid, the filtering area can be effectively increased, the filter screen 60 is not easy to be blocked, each gas-liquid conveying pipe 23 can be conveniently arranged in the inner cavity of the filter screen body and performs rotary motion, the inner cavity space of the shell 10 can be reasonably utilized by the structural arrangement, the volume of the whole gas-liquid conveying device can be effectively reduced, and in particular, in order to improve the strength of the filter screen 60, the filter screen body in this embodiment comprises a steel plate lining (not shown) and a filter screen layer (not shown) attached to the steel plate lining, the steel plate of the filter screen body can be replaced regularly, two circular flanges are welded on the rotating shaft along the axis of the steel plate of the filter screen body, and the inner hole of the circular flange is provided with a wear-resisting sleeve and the rotating shaft 20 to perform clearance fit. The periphery of the steel plate lining of the filter screen body is provided with the ribs in the height direction, so that the strength of the filter screen body can be increased, and the filter screen body can be positioned relative to the shell 10, wherein the filter screen body is divided into an upper section and a lower section, and the upper section can be detached to facilitate cleaning.
Referring to fig. 1, 4 and 5, the housing 10 includes a housing body 11 and a cover body 12 covered on the housing body 11, a tap cap 13 is detachably connected to the cover body 12, a flushing hole 63 is formed at a position corresponding to the tap cap 13 at an upper end of the filter screen body, a positioning cover shaft 64 with a flushing flow passage is connected to the flushing hole 63, a positioning blind hole 130 for inserting a top end of the positioning cover shaft 64 is formed at a bottom end of the tap cap 13, and a drain manifold 70 communicated with the first chamber 101 is connected to a bottom of the housing 10. By means of the structure, the filter screen body can be pressed and fixed at the upper end of the shell 10, so that the stability of the filter screen body is greatly improved, and the filter screen body can be firmly positioned in the shell 10 of the gas-liquid conveying device. In addition, after the flushing hole 63 is arranged and the pump is stopped for cleaning and pressure relief, the plug cap 13 is opened to insert a cleaning pipeline for back flushing the inner cavity of the filter screen body, and the flushed impurities can be discharged through the drain manifold 70, specifically, two valves arranged at intervals are arranged on the drain manifold 70, the drain manifold 70 can remove the impurities after back flushing, an online drain method can also be adopted, when the filter screen body is blocked, the downstream ball valve 72 of the drain manifold 70 is closed firstly, the upstream ball valve 71 is opened to allow the impurities to enter the drain pipeline and then the upstream ball valve 71 is closed, and then the downstream ball valve 72 at the tail end is opened to treat the impurities, so that the impurities can be repeatedly repeated for several times until the pressure is balanced.
Referring to fig. 1 and 6, a liquid inlet and suction device 80 is connected to a gas-liquid inlet of the housing 10 through a liquid inlet flange 13, the liquid inlet and suction device 80 includes a cylinder 81 having an inner cavity, a liquid inlet pipeline penetrating the cylinder 81 and an air inlet pipeline 83 connected to the cylinder 81, an air buffer runner 84 communicating with the air inlet pipeline 83 is formed at the periphery of the liquid inlet pipeline, the liquid inlet pipeline includes a horizontal liquid inlet section 821 and a horizontal liquid outlet section 822 at two ends respectively, and an inclined section 823 connected between the horizontal liquid inlet section 821 and the horizontal liquid outlet section 822, the inclined section 823 extends obliquely upwards from the horizontal liquid inlet section 821 to the horizontal liquid outlet section 822 and forms a jet port 820 with a tapered runner port at a connection position with the horizontal liquid outlet section 822, and a suction hole is further formed at a connection position of the inclined section 823 and the horizontal liquid outlet section 822; the intake line 83 is provided with a check valve 831 and a filter plate 832 in this order along the flow direction of the gas. By the arrangement, the gas and liquid can form a pressure state that the liquid and the air pressure are equal or the hydraulic pressure is larger than the air pressure at the air suction hole of the liquid inlet pipeline, so that the gas and liquid can be sucked into the gas-liquid mixing cavity 100 of the shell 10 through the jet velocity of the liquid, the purpose of gas and liquid simultaneous transportation is achieved, and in addition, the one-way valve 831 and the filter plate 832 in the air inlet pipeline 83 can effectively prevent the liquid from being strung into the air inlet pipeline 83.
The gas-liquid conveying pipes 23 of the dynamic gas-liquid conveying device in this embodiment can rotate along with the rotating shaft 20, and can sequentially suck the gas-phase medium located in the upper area of the gas-liquid mixing cavity 100 and the liquid-phase medium located in the lower area of the gas-liquid mixing cavity 100 in the rotating process, wherein the gas-liquid conveying pipes 23 can sequentially stretch into the gas-phase medium and the liquid-phase medium and are located at different height positions in the 360-degree rotating process along with the rotating shaft 20, so that the gas-liquid medium can be continuously sucked, and the gas-liquid mixture is sent into the liquid inlet cavity of the hydraulic end of the reciprocating pump through the gas-liquid conveying channel 210 of the rotating shaft 20, so that the purpose of conveying the gas and the liquid under the dynamic condition is achieved. Wherein, because the reciprocating plunger pump (piston pump) reciprocates in operation the plunger, the gas-liquid medium is mixed by the liquid inlet suction device 80 and enters the airtight shell 10 from the liquid inlet flange 13, and enters the second chamber 102 after passing through the filter screen 60, when the plunger moves backwards, the liquid inlet valve is opened, because the rotating shaft 20 is in a continuous rotating state, the medium gas and liquid can enter the gas-liquid conveying pipe 23 with suction force at different positions, and then enter the liquid inlet cavity of the hydraulic end of the reciprocating pump, when the plunger moves forwards, the liquid inlet valve is closed, the pressure in the plunger cavity is increased, the liquid discharge valve is opened, and the gas-liquid medium is discharged. The gas-liquid conveying pipe 23 continuously changes the suction position along with the rotation of the rotating shaft 20, when part of the gas-liquid conveying pipe 23 enters the liquid state, the rest part of the gas-liquid conveying pipe 23 can be subjected to the reciprocating vacuum suction action of the plunger in the gas state or the gas-liquid state, and enters the gas-liquid conveying channel 210 of the rotating shaft 20, then enters the hydraulic end of the reciprocating pump through the liquid outlet flange 55, and is discharged out of the pump through the opening and closing of the valve group. The mode of dynamically sucking gas and liquid in the rotation process of each gas-liquid conveying pipe 23 can effectively overcome the conveying obstruction of the reciprocating pump caused by the influence of different gas-liquid specific gravities or gas-liquid levels, and realize the effective mixed conveying of the gas and the liquid.
Claims (7)
1. A dynamic inlet air liquid conveying device is characterized in that: the device comprises a shell (10) with a gas-liquid mixing cavity (100) and a gas-liquid conveying adjusting assembly arranged in the gas-liquid mixing cavity (100), wherein a gas-liquid inlet communicated with the gas-liquid mixing cavity (100) is formed in the shell (10); the gas-liquid conveying and adjusting assembly comprises a rotating shaft (20) with a gas-liquid conveying channel (210) axially arranged in the rotating shaft, two ends of the rotating shaft (20) respectively penetrate through the front side wall and the rear side wall of the shell (10) and are rotatably arranged, one end of the rotating shaft (20) penetrates out of the shell (10) to form a gas-liquid outlet which is used for being communicated with a liquid inlet cavity of a hydraulic end of a reciprocating pump, and the other end of the rotating shaft penetrates out of the shell (10) to be in driving connection with an external power device so as to drive the rotating shaft (20) to rotate; at least two openings communicated with the gas-liquid conveying channels (210) are circumferentially arranged on the rotating shaft (20) at intervals, gas-liquid conveying pipes (23) which are radially arranged are arranged at the openings, the gas-liquid conveying pipes (23) penetrate through the gas-liquid outlets through the openings and the gas-liquid conveying channels (210), and gas-phase media positioned in the upper area of the gas-liquid mixing cavity (100) and liquid-phase media positioned in the lower area of the gas-liquid mixing cavity (100) can be sequentially sucked in the process of rotating along with the rotating shaft (20); the external power device comprises a pump shaft (30) connected with a power source of the reciprocating pump, and the tail end of the pump shaft (30) is in driving connection with the rotating shaft (20) through a speed reduction transmission mechanism;
a filter screen (60) for filtering the medium flowing in from the gas-liquid inlet is further arranged in the shell (10), the filter screen (60) divides a gas-liquid mixing cavity (100) of the shell (10) into a first cavity (101) before filtering and a second cavity (102) after filtering, and the gas-liquid conveying pipe (23) is positioned in the second cavity (102);
the gas-liquid inlet of the shell (10) is connected with a liquid inlet suction device (80), the liquid inlet suction device (80) comprises a cylinder (81) with an inner cavity, a liquid inlet pipeline penetrating through the cylinder (81) and an air inlet pipeline (83) connected to the cylinder (81), an air buffer runner (84) communicated with the air inlet pipeline (83) is formed at the periphery of the liquid inlet pipeline, the liquid inlet pipeline comprises horizontal liquid inlet sections (821) and horizontal liquid outlet sections (822) at two ends respectively, and an inclined section (823) connected between the horizontal liquid inlet sections (821) and the horizontal liquid outlet sections (822), the inclined section (823) extends upwards from the horizontal liquid inlet sections (821) to the horizontal liquid outlet sections (822) in an inclined mode, a jet orifice (820) with a runner opening being gradually reduced is formed at a connection position with the horizontal liquid outlet sections (822), and a suction hole is further formed at a connection position of the inclined section (823) and the horizontal liquid outlet sections (822);
the air inlet pipeline (83) is sequentially provided with a one-way valve (831) and a filter plate (832) along the flowing direction of the air.
2. The dynamic intake air liquid transporting apparatus according to claim 1, wherein: the speed reduction transmission mechanism comprises a worm (41) in driving connection with the pump shaft (30) and a worm wheel (42) sleeved at the end part of the rotating shaft (20) and used for driving the rotating shaft (20) to rotate, and the worm (41) is in driving connection with the worm wheel (42).
3. The dynamic intake air liquid transporting apparatus according to claim 2, wherein: the end of the pump shaft (30) is provided with a driving bevel gear (43) which can coaxially rotate along with the pump shaft (30), the worm (41) is sleeved with a driven bevel gear (44) which can drive the worm (41) to rotate, and the driving bevel gear (43) is meshed with the driven bevel gear (44).
4. The dynamic intake air liquid transporting apparatus according to claim 2, wherein: the speed reduction transmission mechanism is arranged in a transmission box body (45), the transmission box body (45) is assembled and welded on the shell (10), and two ends of the worm (41) are respectively fixed in the transmission box body (45) through a first bearing (46) and a second bearing (47).
5. The dynamic intake air liquid transporting apparatus according to claim 2, wherein: a third bearing (51) and a fourth bearing (52) are respectively arranged at two ends of the rotating shaft (20), and a third bearing seat (53) for fixing the third bearing (51) and a fourth bearing seat (54) for fixing the fourth bearing (52) are correspondingly arranged on the front side wall and the rear side wall of the shell (10);
the outer side of the third bearing seat (53) is connected with a liquid outlet flange (55) with a gas-liquid flow channel (550), and one end of the rotating shaft (20) is communicated with the gas-liquid flow channel (550) of the liquid outlet flange (55) after passing through the third bearing (51) and the third bearing seat (53);
the other end of the rotating shaft (20) passes through the fourth bearing (52) and the fourth bearing seat (54) and then is connected with the worm wheel (42).
6. The dynamic intake air liquid transporting apparatus according to claim 1, wherein: the filter screen (60) is a filter screen body with an inner cavity, the overall shape of the filter screen body is similar to that of the shell (10), the area between the filter screen body and the shell (10) forms the first chamber (101), and the inner cavity of the filter screen body forms the second chamber (102);
the two ends of the rotating shaft (20) penetrate out of the filter screen body and are connected to the shell (10).
7. The dynamic intake air liquid transporting apparatus according to claim 6, wherein: the shell (10) comprises a shell body (11) and a cover body (12) covered on the shell body (11), and a plug cap (13) is detachably connected to the cover body (12);
the upper end of the filter screen body is provided with a flushing hole (63) at a position corresponding to the plug cap (13), the flushing hole (63) is connected with a positioning cover shaft (64) with a flushing flow passage, and the bottom end of the plug cap (13) is provided with a positioning blind hole (130) for inserting the top end of the positioning cover shaft (64);
a drain manifold (70) communicated with the first chamber (101) is connected to the bottom of the shell (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244781.1A CN109854476B (en) | 2019-03-28 | 2019-03-28 | Dynamic air inlet liquid conveying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244781.1A CN109854476B (en) | 2019-03-28 | 2019-03-28 | Dynamic air inlet liquid conveying device |
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| Publication Number | Publication Date |
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| CN109854476A CN109854476A (en) | 2019-06-07 |
| CN109854476B true CN109854476B (en) | 2023-09-19 |
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| CN201910244781.1A Active CN109854476B (en) | 2019-03-28 | 2019-03-28 | Dynamic air inlet liquid conveying device |
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| US5273405A (en) * | 1992-07-07 | 1993-12-28 | Jet Edge, Inc. | Fluid cushioning apparatus for hydraulic intensifier assembly |
| WO2007041935A1 (en) * | 2005-10-13 | 2007-04-19 | Nanjing Quanzhang Hydraulic Power Science And Technology Co., Ltd | Hydraulic reciprocating pump |
| CN108050037A (en) * | 2018-01-15 | 2018-05-18 | 自贡通达机器制造有限公司 | Gas-liquid pressure-boosting mixing pump and gas-liquid mixing conveyance |
| CN108843531A (en) * | 2018-09-03 | 2018-11-20 | 宁波合力机泵股份有限公司 | For conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media |
| CN109458325A (en) * | 2019-01-04 | 2019-03-12 | 宁波合力机泵股份有限公司 | A kind of combination valve applied to double action for reciprocating pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2895919B1 (en) * | 2006-01-11 | 2008-03-14 | Pulssar Technologies Sarl | PUMPING DEVICE. |
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2019
- 2019-03-28 CN CN201910244781.1A patent/CN109854476B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273405A (en) * | 1992-07-07 | 1993-12-28 | Jet Edge, Inc. | Fluid cushioning apparatus for hydraulic intensifier assembly |
| WO2007041935A1 (en) * | 2005-10-13 | 2007-04-19 | Nanjing Quanzhang Hydraulic Power Science And Technology Co., Ltd | Hydraulic reciprocating pump |
| CN108050037A (en) * | 2018-01-15 | 2018-05-18 | 自贡通达机器制造有限公司 | Gas-liquid pressure-boosting mixing pump and gas-liquid mixing conveyance |
| CN108843531A (en) * | 2018-09-03 | 2018-11-20 | 宁波合力机泵股份有限公司 | For conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media |
| CN109458325A (en) * | 2019-01-04 | 2019-03-12 | 宁波合力机泵股份有限公司 | A kind of combination valve applied to double action for reciprocating pump |
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| CN109854476A (en) | 2019-06-07 |
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