Membrane hydropneumatic pump. RU patent 2507416.

IPC classes for russian patent Membrane hydropneumatic pump. RU patent 2507416. (RU 2507416):

F04B43/06 - Pumps having fluid drive

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FIELD: engines and pumps.

SUBSTANCE: proposed pup comprises sealed housings communicated with delivery and suction pipes via check valves. Chambers of said housings are divided by membranes into pump and drive chambers. Membranes are coupled by rod driven by control unit to reciprocate for alternate feed of compressed air to sealed housing drive chambers and for discharge of compressed air therefrom into ambient medium. This pump comprises two-position pressure control valve. First compressed air intake communicated with bore inside. First air discharge outlet, first and second control channel outlet are brought to bore chamber flat end. Two-position valve working surface is tightly pressed against bore inside end face. Said two-position valve is engaged with control rod. Outlets of control channels are brought into cylindrical channel accommodating reciprocating two-position air control valve. Cylinder ends are composed of cylindrical ledges whereto brought are mouths of the first and second blind channels. First and second circular grooves are made at cylinder mid part. Mouth of second compressed air intake is brought to cylindrical channel inside top surface while mouths of second and third air discharge channels are brought to channel inside bottom to be communicated with atmosphere. Circular grooves are spaced apart.

EFFECT: lower metal input, decreased weight and overall dimensions.

1 dwg

The invention relates to concerns pumps and can be used in various systems of transportation of different fluids.

Known membrane pump contains a linked rod membrane separating the pumping chambers of the drive, dip distributor, made in the form of a piston, installed in the frame that has the ring of the camera around the stem with the formation of two cavities (see GB №2120733, F04 43/06, 1983).

The disadvantage of this pump is the structural complexity of the valve system, due to the availability of auxiliary lines, providing in two specific provisions of the piston connection the main entrance from one side of the shut-off and regulating element and connection of the second party of shut-off and regulating element of the main outlet. As a result of this pump has a considerable size and a large consumption of materials.

Also known membrane pump containing hermetically sealed housings reported with pressure and suction pipes through check valves, with the cavity of the buildings separated by a membrane pump and drive camera, and membrane associated rod, installed with the possibility of reciprocation through the control unit, made with the possibility of alternate supply of compressed air to the drive camera hermetic seals and alternating discharge of compressed air from them in the environment, containing a dip dispenser installed on the suction compressed air (see EN №2068118, F04B 43/06, 1996).

Drawback of this solution is the lack of effective scheme of the transport of compressed air in the cavity of a working body, which determines the constructive complexity of the control unit, its intensity and mass-dimensional characteristics, complicates the technology of fabrication. In addition, there is a «dead» point (at the small consumption of compressed air with the passage of the middle part of the piston of the cylinder that sometimes causes it to stop), i.e. there is a sustainable switching valve and stable operation of the structure.

Task, the solution of which is aimed present invention is to simplify the design of the control unit and ensuring the stability of the pump.

The technical result appearing when solving the problem is expressed in ensuring the supply of compressed air in the cavity for the working of the body directly through the construction of the dip valve, which greatly simplifies the technology of manufacturing block, reduces metal structure, providing smaller dimensions and weight. In addition, «liquidated» dead point when you switch dip valve (including small consumption of compressed air when passing them to the middle part of the cylindrical channel), provided that the protruding end areas of the valve, due to their power contact with directed toward them surface membranes. It provides a sustainable switch control unit and stable operation of the design.

Solution of the problem is achieved by the fact that the membrane pump containing hermetically sealed housings reported with pressure and suction pipes through check valves, with the cavity of buildings separated by a membrane pump and drive camera, and membrane associated rod, installed with the possibility of reciprocation through the control unit, made with the possibility of alternate supply of compressed air to the drive camera hermetic seals and alternating discharge of compressed air from them in the environment, contains dip dispenser, differs in that the first reception opening compressed air communicated with the cavity of boring, preferably, cylindrical, coaxial with the vertical axis of the control unit at the butt end of the cavity of the bore is made with flat and withdrawn mouth first the channel and the mouth of the first and second control channels, and, to the end of the cavity boring closely against the working surface dip distributor, made with the possibility of messages estuaries or the first Manager of the channel and the first channel reported with the atmosphere, or the second control channel and the first of the channel, and dip dispenser confirmed with the Manager rod, installed with the possibility of reciprocation parallel to the longitudinal axis of the rod through the cavity of boring, the amount corresponding to the distance between the extreme positions of the dip of the distributor, in addition, the outputs of the control channels are opened in a cylindrical channel, the longitudinal axis which is perpendicular to the vertical axis of the control unit, which is placed with the possibility of reciprocation dip air distribution valve, made in the form of a cylinder, the surface of which is paired with the surface of a cylindrical channel and performed length less of its length, it, end sections of the cylinder are made in the form of cylindrical projections that extend beyond the control unit, with the possibility of alternate contact their ends with the surfaces of the relevant membranes, while their maximum rapprochement with actuator controls, on the ends of the projections reported in the cavity open the appropriate drive cameras, the mouth of the first and second deaf channels not reported with each other at the bottom, oriented along the longitudinal axis of the dip valve, also in the middle part of the cylinder are made first and second ring grooves, the first of which, by means of radial channels communicated with the first deaf channel, and the second communicated with the second deaf channel, while on the upper part of the cavity surface of a cylindrical channel displayed mouth second suction compressed air, in its lower part withdrawn the mouth of the second and third channel reported with the atmosphere, while the annular grooves posted each other at a distance at which the first position dip valve the first ring groove communicated with the second adoptive hole compressed air, and the second ring groove communicated with the third hole, while in the second position dip valve the first ring groove communicated with the second hole, and the second ring groove communicated with the second adoptive hole compressed air.

Comparative analysis of the characteristics of the claimed solution with the attributes of the prototype and analogues indicates compliance of the claimed solution to the criterion of «novelty».

Signs distinctive part of the claims provide the following functional tasks:

Signs of «first reception opening compressed air communicated with the cavity of boring, preferably, cylindrical, coaxial vertical-axis control unit» simplify the technology of making this part of the control unit. In addition, there is a separate supply a working body in the system pump control (apart from the supply of the working fluid in driving the pump chamber).

Signs indicating that «the butt of the cavity of the bore is made with flat and withdrawn mouth first the channel and the mouth of the first and second control channels» provide consistency of the message or the first Manager of the channel with the first channel reported with the atmosphere, or the second control channel and the first channel.

Signs indicating that «leaf plots of the cylinder are made in the form of cylindrical projections that extend beyond the control unit, with the possibility of alternate contact their ends with the surfaces of the relevant membranes, while their maximum rapprochement with actuator controls» provide the possibility of forceful contact membranes with the ends of the dip valve and, thereby, him from the dead point.

Signs indicating that «the ends (cylindrical) projections displayed, open the cavity of the relevant drive cameras mouth the first and second deaf channels not communicated with each other at the bottom, oriented along the longitudinal axis of the dip valve, also in the middle part of the cylinder are made first and second ring grooves, the first of which, by means of radial channels communicated with the first deaf channel, and the second communicated with the second deaf channel» provide for the possibility of filing flows of a working body in one or another drive camera through the construction of the dip valve.

Signs indicating that «on top of the cavity surface of a cylindrical channel displayed mouth second suction compressed air, in its lower part withdrawn the mouth of the second and third channel reported with the atmosphere of» provide consistency switching filing flows of a working body in one or another drive camera, and the submission of the working body in one of the drive cameras simultaneously with the discharge of a working body of another camera.

Signs indicating that «the ring grooves, are disposed one from another at a distance of at in the first position dip valve the first ring groove communicated with the second adoptive hole compressed air, and the second ring groove is in communication with the third hole, while in the second position dip valve the first ring groove communicated with the second hole, and the second ring groove communicated with the second adoptive hole compressed air» provide a clear coordination «work» driving cameras.

Figure 1 schematically shows a cut of the pump.

The diagram shows the sealed case 1, injection 2 and suction 3 nozzles, valves 4, membranes, 5, 6 pumping and driven 7 camera, the stem 8 control unit 9, the first reception opening 10 compressed air cavity 11 bore the end of 12 cavity bore the mouth of the 13 first channel 14 the mouth of the 15 first control channel 16, the mouth of the 17 second control channel 18, the working surface 19 dip distributor 20, managing rod 21, the longitudinal axis of 22 stem 8, outputs 23 and 24, respectively, the first 16 and the second 18 control channels, cylindrical channel 25, the longitudinal axis of 26, the vertical axis 27 control 9, dip air distribution valve 28, cylindrical protrusions 29, with the ends 30, mouth 31 first 32 and 33 second deaf channels, the first 34 and 35 second ring grooves, radial channels 36 and 37, the upper part 38 cavity surface of a cylindrical channel 25, the mouth of 39 second suction compressed air 40, the lower part 41 cavity surface of a cylindrical channel 25, the mouth of 42 and 43 44 second-and third-45 channels.

Referred to in the formula of the longitudinal axis of the dip valve 28 not shown, because of its position on the drawing coincides with the longitudinal axis 26, cylindrical channel 25.

Sealed housing 1 communicated with the blower 2 and suction 3 pipes through check valves 4, for example, ball type, providing suction and delivery of the pumping medium.

Cavity buildings 1 separated by membranes 5 pump 6 and drive 7 camera, and membrane associated stem 8, installed with the possibility of reciprocation through control unit 9 (made with the possibility of alternate supply compressed air to drive 7 camera hermetic seals 1 and alternating discharge of compressed air from them in the environment). Dip dispenser 20 set up the first suction 10 compressed air, which communicated with the cavity of the 11 boring, preferably, cylindrical, coaxial with the vertical axis of 27 control 9, butt 12 cavity 11 bore is made with flat and it displayed the mouth of the 13 first channel 14 (reported with the atmosphere), the mouth of the 15 first control channel 16 and mouth 17 of the second control channel 18.

To the end of the 12 cavity 11 boring closely against the working surface of 19 dip distributor 20, made with the possibility of a message (in its extreme positions) estuaries or the first control channel 16 and the first channel 14-or a second control channel 18 and the first channel 14. It can be done in the form of a prism, or the cylindrical details which one party (the working surface of 19) is flat and has a groove (depression) length of which corresponds to the distance between opposite walls control channel 16 and the first channel 14 which is the same parameter between the second Manager channel 18 and the first channel 14). Dip dispenser known confirmed with the Manager rod 21, installed with the possibility of reciprocation parallel to the longitudinal axis 22 stem 8 through cavity 11 boring on the amount corresponding to the distance between the extreme positions of the dip distributor 20, for what length Manager rod 21 the value, corresponding to the distance between the extreme positions of the dip distributor 20 (its course) more than the distance between the exposed areas ends control 9 the value, corresponding to the distance between the extreme positions of the dip distributor 20.

Outputs 23 and 24, respectively, the first 16 and the second 18 control channels open cylindrical channel 25 (longitudinal axis 26 of which is perpendicular to the vertical axis 27 control 9) which is placed with the possibility of reciprocation dip air distribution valve 28, made in the form of a cylinder, the surface of which is paired (for example, known way) with the surface of a cylindrical channel 25 and performed length less of its length. Leaf plots of the cylinder are made in the form of cylindrical protrusions 29, protruding beyond the control unit 9, with the possibility of alternate contact their ends 30 with the surfaces of the relevant membranes 5, during their convergence with actuator controls almost the maximum. The appropriate ends of 30 projections 29 withdrawn, open cavity in the appropriate drive cameras 7, mouth 31 (the first 32 and 33 second deaf channels) not communicated with each other at the bottom, oriented along the longitudinal axis of the dip valve 28 (in the drawing corresponds to the longitudinal axis of the 26 cylindrical channel 25). In the middle part of the cylinder of the body dip valve 28 performed the first 34 and 35 second ring grooves, the first of which, by means of radial channels 36 communicated with the first deaf channel 32, and the second communicated with the second deaf channel 33 radial channels 37 (these systems channels parallel to each other and are separated by a distance corresponding to the distance between the first 34 and 35 second snap ring grooves.

On top of the 38 cavity surface of a cylindrical channel 25 displayed mouth 39 second suction compressed air 40, and in its lower part 41 withdrawn mouth 42 and 43 44 second-and third-45 channels. Thus, the annular grooves 34 and 35 placed at distances at which the first position dip valve 28 the first ring groove 34 communicated with the second adoptive hole compressed air is 40, and the second ring groove 35 paired with third hole 45, while in the second position dip valve 2 8 the first ring groove 34 communicated with the second hole 44, and the second ring groove 35 paired with a second foster hole compressed air 40.

The claimed device operates as follows.

The drawing shows the starting position at which the right (in the drawing) sealed case 1 has a maximum volume of pumping chamber 6 and the minimum amount of drive camera 7, in this membrane 5 maximum put forward in the direction of the control unit 9, simultaneously, the left (in the drawing) sealed enclosure has no minimum pumping chamber 6 and the maximum amount of drive camera 7, in this membrane 5 maximum is shifted from the control unit 9. Thus the right end of the control rod 21 addresses membrane 5 right (in the drawing of the enclosure 1, and its left edge acts cavity left drive camera 7,abroad location left membrane 5 (when she will be close to the control unit 9) by an amount corresponding to the distance between the extreme positions of the dip distributor 20.

The butt end of the 30 right cylindrical protrusion 29 is also in contact with the membrane of 5 right (in the drawing of the enclosure 1 and shifted under the power influence of the latter on its rightmost position by up to 2 mm the end of 30 left cylindrical protrusion 29 acts cavity left drive camera 7 and abroad location left membrane 5 (when she will be close to the control unit 9).

Compressed air, which led to the first intake hole 10 compressed air control 9 enters the 11 boring, in which the dip dispenser 20 is one of its working positions (in the drawing, it is shifted to the left) informing each other mouth of the 13 first channel 14 and 15 mouth of the first control channel 16. In this connection compressed air directly from the cavity 11 bore can only come in the second control channel 18 on which he enters into the gap between the right (in the drawing) wall of a cylindrical channel 25 and right end of the cylindrical part of the dip valve 28 (simultaneously, from the space between the left (in the drawing) wall of a cylindrical channel 25 and the left end of the cylindrical part of the dip valve 28, is there compressed air (remaining after the previous cycle of operation, begins to be discharged into the atmosphere through the first control channel 16 and communicated with him first channel 14.

Until dip air distribution valve 28 is in the position shown on the drawing, through the second socket of compressed air is 40 compressed air in the first groove 34, where through the radial channels 36 compressed air enters the first deaf channel 32 and then in the left drive camera 7. At the same time from the right (in the drawing) drive camera 7 is reset compressed air in the atmosphere (through the second deaf channel 33, then through the radial channels 37 in the second groove 35 and on through communicated with her third channel 45.

Escape of air from the gap between the right (in the drawing) wall of a cylindrical channel 25) and the right end of the cylindrical part of the dip valve 28, with simultaneous submission of compressed air at the opposite end of a cylindrical channel 25, leads to the displacement of dip valve 28 in the left (in the drawing). When he gets in the end position, the first ring groove 34 are communicated with the second channel 44, and the second ring groove 35 is communicated with the second adoptive hole compressed air 40. It initiates processes of discharge of compressed air from the left (in the drawing) drive camera 7 and compressed air supply to the right (in the drawing) drive camera 7. Reset compressed air from the left (in the drawing) drive camera 7 goes through the first deaf channel 32, then through the radial channels 36 in the first groove 34 and on through communicated with her second channel 44 in the atmosphere. Compressed air supply to the right (in the drawing) drive camera 7 goes through the second socket of compressed air 40 hereinafter - the second annular groove 35, where through the radial channels 37 compressed air enters the second deaf channel 33 and later in the right drive camera 7.

This process leads to the displacement of membranes in new extreme positions - left membrane 5 moves to the right (in the drawing) closer to the control unit 9, and the right also moves to the right, away from the control unit 9.

Due to this in the pump chamber 6 left a sealed enclosure 1 vacuum is created and it sucked fluid from the suction port 3, whereas from the pump chamber 6 right of the enclosure 1 fluid is pushed into the discharge pipe 2.

Such movement membranes synchronized 8 rod ends which are connected with them, moreover, when it moves to the right, the left (in the drawing) membrane first moves (right) control rod 21 (end of which appeared in her direction). This switches the dip distributor 20 in the new position in which compressed air, air supply to the first intake hole 10 compressed air control 9 enters the 11 boring and is opening to the mouth of the 15 first control channel 16 and later in a cylindrical channel 25, ensuring like already (taking into account the message of the second control channel 18 with the first channel 14) switch (transfer to a new position) dip valve 28. Prior to the completion of the maximum stroke membrane happens power last contact with the base face 30 left hanging 29 valve 28, which leads to it from end position.

Then everything is repeated in the order described below.

Membrane pump containing hermetically sealed housings reported with pressure and suction pipes through check valves, with the cavity of buildings separated by a membrane pump and drive camera, and membrane associated rod, installed with the possibility of reciprocation through the control unit, made with the possibility of alternate supply of compressed air to the drive camera hermetic seals and alternating discharge of compressed air from them in the environment, containing a dip dispenser, featuring the fact that the first reception opening compressed air communicated with the cavity of boring, preferably cylindrical, coaxial with the vertical axis of the control unit, with the butt of the cavity of the bore is made with flat and withdrawn mouth first the channel and the mouth of the first and second control channels, and to the end of the cavity boring closely against the working surface dip distributor, made with the possibility of messages estuaries or the first Manager of the channel and the first channel reported with the atmosphere, or the second control channel and first of the channel, and dip dispenser confirmed with the Manager rod, installed with the possibility of reciprocation parallel to the longitudinal axis of the rod through the cavity of boring, by an amount corresponding to the distance between the extreme positions of the dip of the distributor, in addition, the outputs of the control channels are opened in a cylindrical channel, the longitudinal axis which is perpendicular to the vertical axis of the control unit, which is placed with the possibility of reciprocation dip air distribution valve, made in the form of a cylinder, the surface of which is paired with the surface of a cylindrical channel and performed length less of its length, the leaf sections of the cylinder are made in the form of cylindrical projections that extend beyond the control unit, with the possibility of alternate contact their ends with the surfaces of the relevant membranes at their maximum rapprochement with actuator controls, on the ends of the projections displayed in the cavity open the appropriate drive cameras mouth first and second deaf channels not communicated with each other at the bottom, oriented along the longitudinal axis of the dip valve, moreover, in the middle part of the cylinder are made first and second ring grooves, the first of which, by means of radial channels communicated with the first deaf channel, and the second communicated with the second deaf channel, while on the upper part of the cavity surface of a cylindrical channel displayed mouth second suction compressed air, in its lower part withdrawn the mouth of the second and third channel reported with the atmosphere, with annular grooves placed each other at a distance, which in the first position dip valve the first ring groove communicated with the second adoptive hole compressed air, and the second ring groove is in communication with the third hole, while in the second position dip valve the first ring groove communicated with the second hole, and the second ring groove communicated with the second adoptive hole compressed air.