CN109458326A - A kind of double acting fluid end of the horizontal valve group of reciprocating pump - Google Patents
A kind of double acting fluid end of the horizontal valve group of reciprocating pump Download PDFInfo
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- CN109458326A CN109458326A CN201910008398.6A CN201910008398A CN109458326A CN 109458326 A CN109458326 A CN 109458326A CN 201910008398 A CN201910008398 A CN 201910008398A CN 109458326 A CN109458326 A CN 109458326A
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- valve
- combination
- piston
- pump housing
- feed liquor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of double acting fluid ends of the horizontal valve group of reciprocating pump, comprising: the pump housing, the pump housing is interior to combine valve passage equipped with piston channel and with two of piston channel connection；The piston core of piston component is movably disposed in piston channel；Two combination valves are respectively arranged in two combination valve passages, and each combination valve includes the liquid feed valve and tapping valve for sharing same valve seat；Two combination valve passages are located at the both ends of piston channel, and are coaxial arrangement with the piston channel；The feed pathway being connected to the admission chamber of liquid feed valve, and the apocenosis passage being connected to the exhaust chamber of tapping valve are offered on the side wall of the pump housing corresponding with each combination valve.Since piston channel is located on same axis with valve passage is combined, it is effectively prevented in the prior art because two channels intersect vertically the problem of stress concentration of appearance, it is less prone to the cracking of the pump housing, will not be because of extra Iinvalid volume caused by there are chiasma interference, thus efficiently gas-liquid mixture fluid can be conveyed.
Description
Technical field
The present invention relates to the double acting fluid ends of reciprocal pump technical field more particularly to a kind of horizontal valve group of reciprocating pump.
Background technique
Reciprocating pump can be divided into single-acting pump and double-acting pump, and so-called single-acting refers to the plunger of reciprocating pump during forward
Work done, not work done in return stroke, double acting refer to reciprocating pump piston (plunger) is during forward and return stroke is equal
It can work done.Double action for reciprocating pump can often get up power end in the non-power utilization of mechanical energy of backhaul, make it in backhaul
When also carry out work done so that the design volume of the power end of similar match power can it is small one gear, wherein set in fluid end
In meter, the valve group of double action for reciprocating pump than single-acting reciprocating pump valve group more than one times, the valve group of reciprocating pump can be upper and lower valve
Structure, or combination valve arrangement, the valve group of the fluid end of conventional reciprocating pump are vertical structure, correspondingly, the work of valve group
Situation is vertical operation, " a kind of reciprocal as disclosing the Chinese invention patent application No. is CN201710310625.1
Pump hydraulic end structure ".
But there is also certain deficiencies for the fluid end of this reciprocating pump: firstly, since the piston (plunger) of reciprocating pump
Operation channel and the valve chamber channel of valve group are arranged at right angle, the high pressure that the position stress easy to form of two channels intersection is more concentrated
Alternating regions, for this reciprocating pump in trandfer fluid, otherwise pressure rating just will appear opening for the pump housing no more than 25MPa
Split risk；Secondly, this reciprocating pump hydraulic-end with vertical valve block structure, due to existing between piston channel and valve chamber channel
Chiasma interference and when it being caused to be used to convey gas-liquid mixture fluid, the region of Iinvalid volume is larger, thus will appear gas lock and
Lower the operational efficiency of pump, and there are problems that vibration noise becomes larger, it is difficult to realize the efficient conveying to gas-liquid medium.
Summary of the invention
It is not easy to crack the technical problem to be solved by the invention for the present situation of prior art is to provide a kind of pump housing and
Iinvalid volume is small so as to efficiently convey the double acting fluid end of the horizontal valve group of reciprocating pump of gas-liquid mixture fluid.
The technical scheme of the invention to solve the technical problem is: a kind of double acting liquid of the horizontal valve group of reciprocating pump
Power end, comprising: the pump housing, the pump housing is interior to combine valve passage equipped with piston channel and with two of piston channel connection；Piston
Component, the piston core including piston rod and set on the end of piston rod, it is logical that the piston core is movably disposed in the piston
In road；Two combination valves are respectively arranged in two combination valve passages, and each combination valve includes the feed liquor for sharing same valve seat
Valve and tapping valve；Two combination valve passages are located at the both ends of the piston channel, and are coaxial with the piston channel
Setting, the liquid feed valve and tapping valve of the combination valve are located at the both ends of the valve seat, wherein the liquid feed valve is located towards
The side of the piston channel, the tapping valve are located at backwards to the side of the piston channel；The pump housing corresponding with each combination valve
Side wall on offer the feed pathway being connected to the admission chamber of the liquid feed valve, and be connected to the exhaust chamber of the tapping valve
Apocenosis passage.
In order to which each combination valve to be fixed on to the both ends of the pump housing, so that the direction of action one of piston component and two combination valves
It causes, two combination valves are respectively to be set to the main combination valve of the front end of the pump housing and set on secondary group of the rear end of the pump housing
Close valve；The internal diameters of two combination valve passages are all larger than the internal diameter of the piston channel, thus formed in the axial direction for pair
The first shoulder that the main combination valve is limited and the second shoulder for being limited to the secondary combination valve, described main group
It closes valve and the pump housing is fixed in the first cock of the aperture position of the combination valve passage and the first shoulder by lid conjunction
Front end, the secondary combination valve by lid close it is another combination valve passage aperture position the second cock and second shoulder
It is fixed on the rear end of the pump housing.
In order to drive the power end of reciprocating pump more easily to the piston component, realize that piston component is promoting
The purpose of energy work done, the piston rod are described past across the secondary combination valve and the second cock connection in process and return stroke
The power end pumped again；The valve seat of the secondary combination valve is equipped with the first duct passed through for the piston rod, first duct
It is interior to be equipped with for the sealed letter body with piston rod packing cooperation.It is mountable in sealed letter body to have airtight and watertight padding different in more
To realize reciprocation sealing between the two.
As an improvement, being equipped with feed liquor duct and drain duct on the valve seat of each combination valve, the feed liquor duct connects
Lead to the feed pathway of the pump housing and the admission chamber of the liquid feed valve, the admission chamber of liquid feed valve described in the drain hole link with
The exhaust chamber of the tapping valve.When piston component promotes, liquid feed valve is closed, and tapping valve is opened, and is drawn into piston channel
Fluid media (medium) can enter in the exhaust chamber of tapping valve the apocenosis passage for being pressed into the pump housing by the drain duct on valve seat
It is output in exterior line；When piston component backhaul, tapping valve is closed, and liquid feed valve is opened, the fluid media (medium) in exterior line
The feed liquor duct passed sequentially through in the feed pathway and valve seat of the pump housing enters in the admission chamber of liquid feed valve, and then is inhaled into work
It fills in channel, completes one and recycled into drain.
In order to increase the feed flow of reciprocating pump, transfer efficiency, the feed liquor duct on the valve seat of each combination valve are improved
Having multiple, and is uniformly distributed around the axial line of the valve seat, the outer wall of the valve seat is equipped with first annular groove, and described first
Annular groove be connected to the pump housing feed pathway and each feed liquor duct；Drain duct on the valve seat of each combination valve
Have multiple, and is uniformly distributed around the axial line of the valve seat.
As an improvement, the liquid feed valve of each combination valve further include in addition to shared valve seat the first spool, the first spring and
First spring base, two first spring bases are connected to respectively on the first shoulder and second shoulder；Described first
Spring is set between first spool and first spring base, so that the first spool activity cooperation is in the inlet opening
At the port in road.
As an improvement, the tapping valve of each combination valve further include in addition to shared valve seat the second spool, second spring and
Second spring seat, two second spring seats pass through screw rod and are connected on the valve seat；The second spring is set to described
Between second spool and the second spring seat, so that the second spool activity cooperation is at the port in the drain duct.
In order to enable the liquid feed valve of each combination valve and the switching motion of tapping valve are more flexible, the valve seat of each combination valve
Both ends of the surface be plane, respectively feed liquor plane and drain plane have second annular groove in the feed liquor plane, described
The port in feed liquor duct and drain duct is set on the bottom surface of the second annular groove, the interior edge of the second annular groove
Also there is the guide part being axially arranged, first spool is the feed liquor valve plate being movably set on the guide part, institute
State feed liquor valve plate sealing cooperation on the bottom surface of the second annular groove, be additionally provided on the feed liquor valve plate on the valve seat
Drain duct the corresponding hole for back flow in port；Second spool is tapping valve of the sealing cooperation in the drain plane
Plate has the pilot hole passed through for the screw rod on the drain valve plate.
As an improvement, being also connected with the feed liquor pipeline to be connected to the feed pathway on the pump housing, and to be connected to
The tapping line of the apocenosis passage；The feed liquor pipeline is located at one of them of two orientation of the upper and lower of the pump housing
Orientation, the tapping line are located at another orientation.It when in use can be according to actual duty requirements, by the feed liquor pipeline or row
Liquid pipe line is set to the either above or below of the pump housing.
As an improvement, the pump housing is equipped with multiple groups piston channel and combination valve passage side by side in the horizontal direction, correspondingly,
The feed liquor pipeline and tapping line have multiple groups；It is connected between feed liquor pipeline described in each group by total incoming-stream manifold, each group institute
It states and is connected between tapping line by total drain manifold.That is, the reciprocating pump can be designed to two cylinders or more according to actual needs
Cylinder.
Compared with prior art, advantages of the present invention: the fluid end of the horizontal valve group of reciprocating pump in the present invention is double acting
Fluid end, the both ends of the piston channel of the fluid end are respectively communicated with two combination valve passages, wherein described two combination valve passages
It is coaxial arrangement with piston channel, since piston channel is located on same axis with valve passage is combined, effectively prevents existing
Because two channels intersect vertically the problem of stress concentration of appearance in technology, be less prone to the cracking of the pump housing, thus can be convenient pair
High-pressure fluid of the pressure rating higher than 25MPa is conveyed；On the other hand, due to piston channel with combine valve passage be located at it is same
On axis, the direction of motion of piston component is consistent with the direction of action of each combination valve, thus two interchannels will not intersect because existing
Interference causes extra Iinvalid volume, will not occur gas as reciprocating pump in the prior art when conveying gas-liquid mixture fluid
Lock and vibration problem, can efficiently convey gas-liquid mixture fluid.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the double acting fluid end of the horizontal valve group of reciprocating pump of the embodiment of the present invention；
Fig. 2 is the right view of the double acting fluid end of the horizontal valve group of reciprocating pump of the embodiment of the present invention；
Fig. 3 is the main combination valve structural schematic diagram of the embodiment of the present invention；
Fig. 4 is the secondary combination valve arrangement schematic diagram of the embodiment of the present invention；
Fig. 5 is the right view of the pump housing of the embodiment of the present invention；
Fig. 6 is the sectional view along A-A of Fig. 5；
Fig. 7 is the top view of the pump housing of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram that the feed liquor pipeline of the embodiment of the present invention is connect with total incoming-stream manifold.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Referring to Fig. 1-Fig. 8, a kind of double acting fluid end of the horizontal valve group of reciprocating pump, including the pump housing 10, piston component 20 with
And it is respectively arranged on the main combination valve 60 of the front end of the pump housing 10 and the secondary combination valve 70 set on rear end, wherein be equipped in the pump housing 10
Piston channel 11 and with the piston channel 11 is connected two combine valve passage 12, two combination valve passages 12 are located at
The both ends of piston channel 11, main combination valve 60 and secondary combination valve 70 are respectively arranged in two combination valve passages 12, specifically, piston
Component 20 includes piston rod 21 and the piston core 22 set on the end of piston rod 21, and it is logical that piston core 22 is movably disposed in piston
In road 11, piston channel 11 described in the present embodiment is the working chamber of 22 reciprocating action of piston core of confession under directions piston component 20,
Again specifically, two combination valve passages 12 are coaxial arrangement with the piston channel 11, that is, the axial line of piston channel 11 and two
The axial line of a combination valve passage 12 is located along the same line, and each combination valve includes liquid feed valve 40 and the row for sharing same valve seat
Liquid valve 50, wherein liquid feed valve 40 and tapping valve 50 are located at the both ends of valve seat, wherein liquid feed valve 40 is located towards piston channel
11 side, tapping valve 50 are located at backwards to the side of piston channel 11, correspondingly, the side wall of the pump housing 10 corresponding with each combination valve
On offer the feed pathway 13 being connected to the admission chamber 400 of liquid feed valve 40, and the row being connected to the exhaust chamber 500 of tapping valve 50
Liquid channel 14, when piston component 20 promotes, liquid feed valve 40 is closed, and tapping valve 50 is opened, the stream being drawn into piston channel 11
Body medium can be output in exterior line by the apocenosis passage 14 of the pump housing 10；When 20 backhaul of piston component, tapping valve 50 is closed
Close, liquid feed valve 40 is opened, the fluid media (medium) in exterior line by the feed pathway 13 of the pump housing 10 enter liquid feed valve 40 into
It in sap cavity 400, and then is inhaled into piston channel 11, completes one and recycled into drain, since the both ends of piston channel 11 are equal
Equipped with can the combination valve that is controlled of fluid medium, so piston component 20 is able to carry out work in propulsion and return stroke
Function realizes the efficient conveying of fluid medium.
Referring to Fig. 1, in the present embodiment, the piston core 22 of piston component 20 is bolted on the end of piston rod 21
Portion, correspondingly, the power end (not shown) of the other end connection reciprocating pump of piston rod 21, specifically, the piston of the present embodiment is logical
It is equipped with the cylinder sleeve 23 for accommodating piston core 22 in road 11, is set to sealing element in the outer circle of piston core 22, to realize and cylinder sleeve 23
Inner wall seal cooperation, it will, of course, be appreciated that, cylinder sleeve 23 and piston component 20 in the present embodiment also could alternatively be phase
The letter body and plunger assembly answered, that is, form reciprocating pump.
In order to which each combination valve to be fixed on to the both ends of the pump housing 10, so that the direction of action one of piston component 20 and two combination valves
It causes, the internal diameter of two combination valve passages 12 in the present embodiment is all larger than the internal diameter of piston channel 11, to be formed in the axial direction
First shoulder 15 for being limited to main combination valve 60 and the second shoulder 16 for being limited to secondary combination valve 70, it is main
Combination valve 60 is closed by lid and is fixed on the pump housing 10 in the first cock 81 of the aperture position of combination valve passage 12 and first shoulder 15
Front end, secondary combination valve 70 by lid close it is another combination valve passage 12 aperture position the second cock 82 and the second shoulder 16
It is fixed on the rear end of the pump housing 10, wherein the first cock 81 and the second cock 82 are fixed on the front and back end of the pump housing 10 by screw thread
On wall, specifically, in order to be set to each combination valve more firmly in each combination valve passage 12, in the valve seat 61 of main combination valve 60
Portion has the location hole 600 axially opened up, and the inside of the first cock 81 has positioning column compatible with above-mentioned location hole 600
810, similarly, piston rod 21 passes through the power end of secondary combination valve 70 and the second cock 82 connection reciprocating pump, wherein secondary combination valve
70 valve seat 71 is equipped with the first duct 700 passed through for piston rod 21, is equipped in the first duct 700 for close with piston rod 21
Seal the sealed letter body 701 of cooperation, wherein mountable in sealed letter body 701 to have airtight and watertight padding different in more to realize the two
Between reciprocation sealing, such as V-arrangement, U-shaped, rectangle packing seal, in order to easily to secondary combination valve 70, piston component 20 and the pump housing
10 are assembled, and can be designed to integral piece between the valve seat 71 and sealed letter body 701 of secondary combination valve 70；In addition, in order to avoid
Medium is revealed between valve seat and the inner wall for respectively combining valve passage 12, is additionally provided in the outer circle of the valve seat of each combination valve for placing
The seal groove (not shown) of O-ring seal.Piston rod 21 in the present embodiment passes through secondary combination valve 70 and the second cock 82 connects
The power end of reciprocating pump can be such that the power end of reciprocating pump more easily drives to piston component 20, realize piston component 20
The purpose of equal energy work done in progradation and return stroke.
Referring to Fig. 3 and Fig. 4, feed liquor duct 91 and drain duct 92, feed liquor duct 91 are equipped on the valve seat of each combination valve
It is connected to the feed pathway 13 of the pump housing 10 and the admission chamber 400 of liquid feed valve 40, drain duct 92 is connected to the admission chamber 400 of liquid feed valve 40
With the exhaust chamber 500 of tapping valve 50；Wherein, in order to increase the feed flow of reciprocating pump, transfer efficiency is improved, in the present embodiment
Feed liquor duct 91 on the valve seat of each combination valve has multiple, and is uniformly distributed around the axial line of valve seat, wherein the valve of each combination valve
First annular groove 93, the feed pathway 13 of the connection pump housing 10 of first annular groove 93 and each inlet opening are equipped on the outer wall of seat
Road 91；Drain duct 92 on the valve seat of each combination valve has multiple, and is uniformly distributed to form an annular around the axial line of valve seat
Face, then specifically, feed liquor duct 91 is equal with the number in drain duct 92, the partial region and drain duct 92 in feed liquor duct 91
On same annular surface, and feed liquor duct 91 and drain duct 92 successively arranged for interval.When piston component 20 promotes, into
Liquid valve 40 is closed, and tapping valve 50 is opened, and the fluid media (medium) being drawn into piston channel 11 can be by the drain duct 92 on valve seat
It enters in the exhaust chamber 500 of tapping valve 50 and then the apocenosis passage 14 for being pressed into the pump housing 10 is output in exterior line；Work as work
When 20 backhaul of plug assembly, tapping valve 50 is closed, and liquid feed valve 40 is opened, and the fluid media (medium) in exterior line passes sequentially through the pump housing 10
Feed liquor duct 91 in feed pathway 13 and valve seat enters in the admission chamber 400 of liquid feed valve 40, and then it is logical to be inhaled into piston
In road 11, completes one and recycled into drain.
With continued reference to Fig. 3 and Fig. 4, the liquid feed valve 40 of each combination valve further includes the first spool 41, the first spring 42 and first
Spring base 43, the inside of two the first spring bases 43 are connected to respectively on first shoulder 15 and the second shoulder 16；First spring 42
Between the first spool 41 and the first spring base 43, so that the first spool 41 can axially and movably cooperate in feed liquor duct 91
At port, the open and close of liquid feed valve 40 are realized, specifically, the first spring base 43 is the ring that middle part offers runner hole 430
Shape positioning sleeve, when two the first spring bases 43 are installed in combination valve passage 12, interior edge and the cylinder sleeve in piston channel 11
23 inner wall flushes, and cylinder sleeve 23 is pressed in piston channel 11 just, then specifically, the outside tool of the first spring base 43
There is the positioning region 431 of evagination, one end of the first spring 42 is set on the positioning region 431；Correspondingly, the tapping valve of each combination valve
50 further include the second spool 51, second spring 52 and second spring seat 53, and two second spring seats 53 in the present embodiment are logical
Screw rod 83 is crossed to be connected on valve seat；Second spring 52 is set between the second spool 51 and second spring seat 53, so that the second spool
51 can axially and movably cooperate at the port in drain duct 92, realize the open and close of tapping valve 50, specifically, screw rod 83
Inner end be tightened on corresponding valve seat by the first screw thread 832, the outer end of screw rod 83 passes through the second screw thread 831 and jam nut
833 second spring seat 53 is fixed.
In order to enable the liquid feed valve 40 of each combination valve and the switching motion of tapping valve 50 are more flexible, the valve seat of each combination valve
Both ends of the surface be plane, respectively feed liquor plane and drain plane, correspondingly, the spool of liquid feed valve 40 and tapping valve 50 is
Valve board structure has second annular groove 94, feed liquor duct 91 and drain duct 92 in feed liquor plane referring specifically to Fig. 3 and Fig. 4
Port be set on the bottom surface of second annular groove 94, the interior edge of second annular groove 94 also has the guide part being axially arranged
95, wherein the first spool 41 is the feed liquor valve plate being movably set on guide part 95, and the sealing cooperation of feed liquor valve plate is second
On the bottom surface of annular groove 94, hole for back flow 410 corresponding with the port in drain duct 92 on valve seat is additionally provided on feed liquor valve plate；
Second spool 51 is drain valve plate of the sealing cooperation in drain plane, has the pilot hole passed through for screw rod 83 on drain valve plate
510, wherein in the present embodiment, the feed liquor valve plate and drain valve plate of main combination valve 60 liquid feed valve with secondary combination valve 70 respectively
Plate and drain valve board structure are identical, are used interchangeably.
Referring to Fig. 1, the feed liquor pipeline 84 to be connected to feed pathway 13 is also connected on the pump housing 10, and to be connected to drain
The tapping line 85 in channel 14, feed liquor pipeline 84 are located at one of orientation in two orientation of the upper and lower of the pump housing 10, drain
Pipeline 85 is located at another orientation, can be set to feed liquor pipeline 84 or tapping line 85 according to actual duty requirements when in use
The either above or below of the pump housing 10, in the present embodiment, feed liquor pipeline 84 have two, respectively by flanged joint in the pump housing 10
It is connected in upper plane and with two feed pathways 13, similarly, tapping line 85 there are two, is being set respectively by flanged joint
It is connected on the lower plane of the pump housing 10 and with two apocenosis passages 14；Referring to figure 5-8, the pump housing 10 in the horizontal direction can be simultaneously
Column are equipped with multiple groups piston channel 11 and combination valve passage 12 (illustrates to be triplex reciprocating pump, but this is reciprocal in the present embodiment
Pump is not limited to three cylinders, can be designed to two cylinders or other multi-cylinders according to actual needs), correspondingly, feed liquor pipeline 84 and row
Liquid pipe line 85 has multiple groups, is connected between each group feed liquor pipeline 84 by total incoming-stream manifold 840, total 840 each group of incoming-stream manifold row
It is connected between liquid pipe line 85 by total drain manifold 850, wherein the rear and front end of total incoming-stream manifold 840 and total drain manifold 850
It may be provided with blind flange 841,851 and the logical flange 842,852 for connecting exterior tubing, lead to flange 842,852 and blind
Flange 841,851 can be interchangeable according to actual needs when in use, wherein Fig. 7 shows the knot of the upper plane of the pump housing 10
The structure of structure schematic diagram, the lower plane of the pump housing 10 is identical with this, and Fig. 8 shows that total incoming-stream manifold 840 connects with each feed liquor pipeline
The structural schematic diagram connect, the structure that total drain manifold 850 is connect with each tapping line 85 are identical with this.
The piston component 20 of reciprocating pump in the present embodiment moves back and forth Shi Junke work done under the driving of power end, specifically
Process is as follows: when piston component 20 promotes, the liquid feed valve 40 of main combination valve 60 is closed, and tapping valve 50 is opened, wherein piston is logical
Fluid media (medium) in road 11 can be output to tapping line by the exhaust chamber 500 of main combination valve 60 and the apocenosis passage 14 of the pump housing 10
In 85, meanwhile, the liquid feed valve 40 of secondary combination valve 70 is opened, and tapping valve 50 is closed, and fluid media (medium) can be passed through successively in feed liquor pipeline 84
The feed pathway 13 of the pump housing 10 and the admission chamber 400 of secondary combination valve 70 suck, the piston channel 11 full of the pump housing 10；When piston group
When 20 backhaul of part, the fluid medium pressure in piston channel 11 is increased, and the tapping valve 50 of secondary combination valve 70 is opened, and liquid feed valve 40 closes
It closes, wherein fluid media (medium) can be output to tapping line by the exhaust chamber 500 of secondary combination valve 70 and the apocenosis passage 14 of the pump housing 10
In 85, meanwhile, the tapping valve 50 of main combination valve 60 is closed, and liquid feed valve 40 is opened, and the fluid media (medium) in feed liquor pipeline 84 can be successively
The admission chamber 400 of feed pathway 13 and main combination valve 60 through the pump housing 10 sucks, the piston channel 11 full of the pump housing 10, completes one
It is a to be recycled into drain.The reciprocating pump is in the propulsion of piston component 20 and return stroke, since piston channel 11 and combination valve are logical
Road 12 is located on same axis, thus effectively prevents the cracking feelings of the pump housing 10 caused by the problem of stress concentration because of intersection duct
Condition improves the service life of reciprocating pump；On the other hand, piston channel 11 with combine between valve passage 12 and will not intersect because existing
Interference causes extra Iinvalid volume, thus can efficiently convey to gas-liquid mixture fluid.
The fluid end of the horizontal valve group of reciprocating pump in the present embodiment is double acting fluid end, the piston channel 11 of the fluid end
Both ends be respectively communicated with two combination valve passages 12, two of them combine valve passage 12 and piston channel 11 is coaxial arrangement, by
In piston channel 11 and combination valve Channel 12-Bit on same axis, effectively preventing in the prior art because of the vertical phase in two channels
Existing problem of stress concentration is surrendered, the cracking of the pump housing 10 is less prone to, thus 25MPa's is higher than to pressure rating with can be convenient
High-pressure fluid is conveyed；On the other hand, since piston channel 11 and combination valve Channel 12-Bit are on same axis, piston component
20 direction of motion is consistent with the direction of action of each combination valve, thus two interchannels will not be because extra caused by there are chiasma interference
Iinvalid volume will not occur gas lock and vibration problem when conveying gas-liquid mixture fluid as reciprocating pump in the prior art,
Efficiently gas-liquid mixture fluid can be conveyed.
Claims (10)
1. a kind of double acting fluid end of the horizontal valve group of reciprocating pump, comprising:
The pump housing (10), interior two combination valves for being equipped with piston channel (11) and being connected to the piston channel (11) of the pump housing (10)
Channel (12)；
Piston component (20), the piston core (22) including piston rod (21) and the end for being set to piston rod (21), the piston core
(22) it is movably disposed in the piston channel (11)；
Two combination valves are respectively arranged in two combination valve passages (12), and each combination valve includes sharing same valve seat
Liquid feed valve (40) and tapping valve (50)；
It is characterized by: two combinations valve passage (12) are located at the both ends of the piston channel (11), and with the work
Filling in channel (11) is coaxial arrangement, and the liquid feed valve (40) and tapping valve (50) of the combination valve are located at the two of the valve seat
End, wherein the liquid feed valve (40) is located towards the side of the piston channel (11), and the tapping valve (50) is located at backwards to institute
State the side of piston channel (11)；
It offers on the side wall of the pump housing (10) corresponding with each combination valve and is connected to the admission chamber (400) of the liquid feed valve (40)
Feed pathway (13), and the apocenosis passage (14) being connected to the exhaust chamber (500) of the tapping valve (50).
2. the double acting fluid end of the horizontal valve group of reciprocating pump according to claim 1, it is characterised in that: two combinations
Valve is respectively the secondary combination for being set to the main combination valve (60) of the front end of the pump housing (10) and being set to the rear end of the pump housing (10)
Valve (70)；
The internal diameter of two combinations valve passage (12) is all larger than the internal diameter of the piston channel (11), to be formed in the axial direction
First shoulder (15) for being limited to the main combination valve (60) and for being limited to the secondary combination valve (70)
The second shoulder (16), the main combination valve (60) by lid close it is described combination valve passage (12) aperture position first rotation
Plug (81) and the first shoulder (15) are fixed on the front end of the pump housing (10), and the secondary combination valve (70) is closed by lid another
The second cock (82) of the aperture position of one combination valve passage (12) and second shoulder (16) are fixed on the pump housing (10)
Rear end.
3. the double acting fluid end of the horizontal valve group of reciprocating pump according to claim 2, it is characterised in that: the piston rod
(21) it passes through the secondary combination valve (70) and the second cock (82) connects the power end of the reciprocating pump；
The first duct (700) that the valve seat of the secondary combination valve (70) is passed through equipped with the confession piston rod (21), described first
It is equipped in duct (700) for the sealed letter body (701) with the piston rod (21) sealing cooperation.
4. the double acting fluid end of the horizontal valve group of reciprocating pump according to claim 2, it is characterised in that: each combination valve
Valve seat on be equipped with feed liquor duct (91) and drain duct (92), the feed liquor duct (91) be connected to the pump housing (10) into
The admission chamber (400) in liquid channel (13) and the liquid feed valve (40), the drain duct (92) are connected to the liquid feed valve (40)
The exhaust chamber (500) of admission chamber (400) and the tapping valve (50).
5. the double acting fluid end of the horizontal valve group of reciprocating pump according to claim 4, it is characterised in that: each combination valve
Valve seat on feed liquor duct (91) have multiple, and be uniformly distributed around the axial line of the valve seat, set on the outer wall of the valve seat
Have first annular groove (93), the first annular groove (93) be connected to the feed pathway (13) of the pump housing (10) with it is each described
Feed liquor duct (91)；
Drain duct (92) on the valve seat of each combination valve has multiple, and is uniformly distributed around the axial line of the valve seat.
6. the double acting fluid end of the horizontal valve group of reciprocating pump according to claim 2, it is characterised in that: each combination valve
Liquid feed valve (40) further include the first spool (41), the first spring (42) and the first spring base (43) in addition to shared valve seat, two
A first spring base (43) is connected to respectively on the first shoulder (15) and second shoulder (16)；
First spring (42) is set between first spool (41) and first spring base (43), so that described first
Spool (41) activity cooperation is at the port of the feed liquor duct (91).
7. the double acting fluid end of the horizontal valve group of reciprocating pump according to claim 6, it is characterised in that: each combination valve
Tapping valve (50) further include the second spool (51), second spring (52) and second spring seat (53) in addition to shared valve seat, two
A second spring seat (53) is connected on the valve seat by screw rod (83)；
The second spring (52) is set between second spool (51) and the second spring seat (53), so that described second
Spool (51) activity cooperation is at the port of the drain duct (92).
8. the double acting fluid end of the horizontal valve group of reciprocating pump according to claim 7, it is characterised in that: each combination valve
The both ends of the surface of valve seat be plane, respectively feed liquor plane and drain plane have the second annular recessed in the feed liquor plane
The port of slot (94), the feed liquor duct (91) and drain duct (92) is set to the bottom surface of the second annular groove (94)
On, the interior edge of the second annular groove (94) also has the guide part (95) being axially arranged, and first spool (41) is can
The feed liquor valve plate being actively set on the guide part (95), the feed liquor valve plate sealing cooperation is in the second annular groove
(94) on bottom surface, hole for back flow corresponding with the port in drain duct (92) on the valve seat is additionally provided on the feed liquor valve plate
(410)；
Second spool (51) is drain valve plate of the sealing cooperation in the drain plane, has on the drain valve plate and supplies
The pilot hole (510) that the screw rod (83) passes through.
9. the double acting fluid end of the horizontal valve group of reciprocating pump according to claim 1-8, it is characterised in that: described
The feed liquor pipeline (84) to be connected to the feed pathway (13) is also connected on the pump housing (10), and logical to be connected to the drain
The tapping line (85) in road (14)；
The feed liquor pipeline (84) is located at one of orientation in two orientation of the upper and lower of the pump housing (10), the row
Liquid pipe line (85) is located at another orientation.
10. the double acting fluid end of the horizontal valve group of reciprocating pump according to claim 9, it is characterised in that: the pump housing
(10) multiple groups piston channel (11) and combination valve passage (12), correspondingly, the feed liquor pipeline are equipped with side by side in the horizontal direction
(84) and tapping line (85) has multiple groups；
It is connected between feed liquor pipeline (84) described in each group by total incoming-stream manifold (840), between tapping line (85) described in each group
It is connected to by total drain manifold (850).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910008398.6A CN109458326B (en) | 2019-01-04 | 2019-01-04 | Double-acting hydraulic end of horizontal valve group of reciprocating pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910008398.6A CN109458326B (en) | 2019-01-04 | 2019-01-04 | Double-acting hydraulic end of horizontal valve group of reciprocating pump |
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| CN109458326A true CN109458326A (en) | 2019-03-12 |
| CN109458326B CN109458326B (en) | 2023-10-03 |
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| CN110469479A (en) * | 2019-08-21 | 2019-11-19 | 中山致安化工科技有限公司 | Pump transmission device and delivery pump |
| CN112302898A (en) * | 2020-11-23 | 2021-02-02 | 宁波合力机泵股份有限公司 | Reciprocating type oil-gas mixed transportation device |
| CN113586383A (en) * | 2021-09-29 | 2021-11-02 | 宁波合力机泵股份有限公司 | Horizontal two-section compression mixed transportation pump hydraulic end |
| CN114901328A (en) * | 2019-12-23 | 2022-08-12 | 阿西斯特医药系统公司 | Multi-fluid delivery system |
| CN118148877A (en) * | 2024-05-10 | 2024-06-07 | 宁波合力机泵股份有限公司 | Multistage supercharging gaseous CO2Medium reciprocating pump |
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| CN113586383A (en) * | 2021-09-29 | 2021-11-02 | 宁波合力机泵股份有限公司 | Horizontal two-section compression mixed transportation pump hydraulic end |
| CN113586383B (en) * | 2021-09-29 | 2021-12-07 | 宁波合力机泵股份有限公司 | Horizontal two-section compression mixed transportation pump hydraulic end |
| CN118148877A (en) * | 2024-05-10 | 2024-06-07 | 宁波合力机泵股份有限公司 | Multistage supercharging gaseous CO2Medium reciprocating pump |
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|---|---|
| CN109458326B (en) | 2023-10-03 |
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