A kind of high pressure water-injection pump using compressed air-driven
Technical field
The utility model relates to high pressure water injection pump technical fields, and in particular to a kind of high pressure injection using compressed air-driven
Water pump.
Background technique
Currently used water injecting pump, mostly uses motor band dynamic crankshaft, and crankshaft drives three plungers (or pump piston) back and forth to transport
It is dynamic, cooperated by the one-way flow of inlet valve and dump valve, exports high pressure water after water at atmospheric pressure sucking pump chamber is pressurized.Three
The phase angle of plunger (or pump piston) is 120 °, and output pressure is more steady, and discharge capacity substantially constant, general occasion can make
With.But Displacement Regulation and output pressure first is that lean on frequency conversion, second is that by replacement plunger (or pump piston) diameter, it is all comparatively laborious, and
And adjustable range is limited.
In addition, be pneumatically driving there are also a kind of hydraulic test pump, but discharge capacity very little, and be unidirectionally to export, output row
Amount is discontinuous.
Summary of the invention
The utility model is intended to the technological deficiency for the prior art, provides a kind of high pressure injection using compressed air-driven
Water pump, adjusts that process is tedious to solve conventional waterflooding pump to discharge capacity and output pressure, and the technical problem that adjustable range is limited.
Another technical problem to be solved in the utility model is that with the hydraulic test pump of compressed air-driven, its discharge capacity is smaller at present
And output displacement is discontinuous.
To realize the above technical purpose, the utility model uses following technical scheme:
A kind of high pressure water-injection pump using compressed air-driven, including cylinder, gas piston, left gas chamber, right gas chamber, air inlet
Mouthful, exhaust outlet, reversal valve, Zuo Zhusai, right plunger, left pump chamber, left dump valve, left inlet valve, right pump chamber, right dump valve, right suction
Enter valve, wherein in the cylinder, cylinder is divided into left gas chamber and right gas chamber to the connection of gas piston by the gas piston;Wherein left gas chamber is logical
It crosses gas passage to be connected to air inlet, exhaust outlet respectively, right gas chamber is connected with air inlet, exhaust outlet respectively by the gas passage
Logical, reversal valve is located in the gas passage, the reversal valve control left gas chamber and air inlet on-off and left gas chamber be vented
The on-off of mouth, the reversal valve control the on-off of right gas chamber and air inlet and the on-off of right gas chamber and exhaust outlet;Left plunger and
Right plunger is connected to the two sides of gas piston, and left plunger is located in left pump chamber, and it is logical that water outlet is connected separately on the left pump chamber
Road and intake tunnel are connected with left dump valve in its exhalant canal, and left inlet valve, right plunger are connected in its intake tunnel
In right pump chamber, it is connected separately with another exhalant canal and another intake tunnel on the right pump chamber, in its exhalant canal
It is connected with right dump valve, right inlet valve is connected in its intake tunnel.
Preferably, replacing the left plunger and right plunger respectively with the pump piston of two same sizes.
Preferably, the reversal valve is in a tubular form, the reversal valve is connected in sequence by three sections of tube body head and the tail, wherein
The outer diameter of first section and endpiece is equal, and the outer diameter in middle section is less than the outer diameter of first section, and the first section, endpiece, middle section three's internal diameter are homogeneous
Deng.
Preferably, left gas chamber is in an off state with exhaust outlet when left gas chamber and air inlet are in connected state;Together
When, right gas chamber is in an off state with air inlet, and right gas chamber and exhaust ports are in connected state.
Preferably, left gas chamber and exhaust ports are in connected state when left gas chamber and air inlet are in an off state;Together
When, right gas chamber and air inlet are in connected state, and right gas chamber is in an off state with exhaust outlet.
The utility model is separately connected a plunger (or pump piston) using the both sides of a gas piston, passes through reversal valve
Control makes compressed air alternately enter the left and right sides of gas piston, pushes two plungers (or pump piston) of gas piston driving reciprocal
Movement, then cooperated by the one-way flow of respective inlet valve and dump valve, it is steadily exported after water at atmospheric pressure is pressurized.
Reversal valve is hollow " work " word valve.When reversal valve is in left dead-centre position, compressed air be can only enter
Left gas chamber pushes gas piston driving or so plunger (or pump piston) to move right together, and the air of right gas chamber passes through exhaust at this time
Hole discharge, left inlet valve is opened, left dump valve is closed, and water at atmospheric pressure is inhaled into left pump chamber;Right suction valve closure, right dump valve simultaneously
It opens, the water of right pump chamber is discharged.
When gas piston motion is to close to right dead-centre position, the boss on connecting rod shifts reversal valve onto right dead-centre position, this
When compressed air can only enter right gas chamber, push gas piston driving or so plunger (or pump piston) to move downward together, it is left at this time
Gas chamber is connected to gas vent and the air of left gas chamber is discharged, and right inlet valve is opened, right dump valve is closed, and water at atmospheric pressure is inhaled into the right side
Pump chamber;Left suction valve closure, left dump valve are opened simultaneously, and the water of left pump chamber is discharged.
When gas piston motion is to close to left dead-centre position, right plunger (or pump piston) shifts reversal valve onto left dead point position
It sets, compressed air enters left gas chamber again at this time, and gas piston is pushed to move right, and and so on normal pressure water steadying can be pressurized by movement
Output.
According to the difference of pressure and discharge capacity and multiple (2~4) modular pumps can be connect in practical application, when use can start one
A modular pump can also start multiple modular pumps simultaneously, to reach the pressure and discharge capacity of needs.
Due to using compressed air-driven, the output pressure and discharge capacity of water injecting pump can be pressed the utility model by adjusting
The air inflow of contracting air controls, control it is very convenient, and in the gamut of pump can step-less adjustment.
In addition, due to using a gas piston driving or so the identical pump piston (or plunger) of two diameters, piston reciprocating
Movement has identical output, can not only make the output of pump steady in this way, and improve the utilization rate of compressed air, to mention
High efficiency.
The area ratio of third, gas piston and pump piston (or plunger) can be very big, so High voltage output easy to accomplish.
Phenomena such as 4th, pneumatic pump startup is steady, will not suppress pump or overload damage, use is safer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model when gas piston motion is to cylinder right end;
Fig. 2 is the structural schematic diagram of the utility model when gas piston motion is to cylinder left end;
In figure:
1, cylinder 2, gas piston 3, left gas chamber 4, right gas chamber
5, air inlet 6, exhaust outlet 7, reversal valve 8, Zuo Zhusai
9, right plunger 10, left pump chamber 11, left dump valve 12, left inlet valve
13, right pump chamber 14, right dump valve 15, right inlet valve.
Specific embodiment
Specific embodiment of the present utility model will be described in detail below.In order to avoid excessive unnecessary thin
Section will not be described in detail to belonging to well known structure or function in the examples below.Used in following embodiment
Approximating language can be used for quantitative expression, show to allow quantity to have certain variation in the case where not changing basic function.
In addition to being defined, technical and scientific term used in following embodiment has general with the utility model one of ordinary skill in the art
All over the identical meanings understood.
Embodiment 1
A kind of high pressure water-injection pump using compressed air-driven, as shown in Figure 1 and Figure 2, including cylinder 1, gas piston 2, left gas
Room 3, right gas chamber 4, air inlet 5, exhaust outlet 6, reversal valve 7, Zuo Zhusai 8, right plunger 9, left pump chamber 10, left dump valve 11, left suction
Enter valve 12, right pump chamber 13, right dump valve 14, right inlet valve 15, wherein gas piston 2 is connected in cylinder 1, and the gas piston 2 will
Cylinder 1 is divided into left gas chamber 3 and right gas chamber 4;Wherein left gas chamber 3 is connected to air inlet 5, exhaust outlet 6 respectively by gas passage,
Right gas chamber 4 is connected to air inlet 5, exhaust outlet 6 respectively by the gas passage, and reversal valve 7 is located in the gas passage, described to change
Left gas chamber 3 and the on-off of air inlet 5 and the on-off of left gas chamber 3 and exhaust outlet 6 are controlled to valve 7, the reversal valve 7 controls right gas
Room 4 and the on-off of air inlet 5 and the on-off of right gas chamber 4 and exhaust outlet 6;Left plunger 8 and right plunger 9 are connected to gas piston
2 two sides, Zuo Zhusai 8 are located in left pump chamber 10, exhalant canal and intake tunnel are connected separately on the left pump chamber 10, at it
It is connected with left dump valve 11 in exhalant canal, left inlet valve 12 is connected in its intake tunnel, right plunger 9 is located at right pump chamber 13
In, it is connected separately with another exhalant canal and another intake tunnel on the right pump chamber 13, is connected with the right side in its exhalant canal
Dump valve 14 is connected with right inlet valve 15 in its intake tunnel.The reversal valve 7 in a tubular form, managed by three sections by the reversal valve
Body head and the tail are connected in sequence, wherein the outer diameter of first section and endpiece is equal, and the outer diameter in middle section is less than the outer diameter of first section, the head
Section, endpiece, middle section three's internal diameter are equal.When left gas chamber 3 is in connected state with air inlet 5, left gas chamber 3 and exhaust outlet 6
It is in an off state;Meanwhile right gas chamber 4 is in an off state with air inlet 5, right gas chamber 4 is in connected state with exhaust outlet 6.
When left gas chamber 3 is in an off state with air inlet 5, left gas chamber 3 is in connected state with exhaust outlet 6;Meanwhile right gas chamber 4 with
Air inlet 5 is in connected state, and right gas chamber 4 is in an off state with exhaust outlet 6.
The working principle of the device is as follows: reversal valve 7 is hollow " work " word valve.When reversal valve 7 is in left dead point
When position, the compressed air from air inlet 5 can only enter left gas chamber 3, and gas piston 2 is pushed to drive left plunger 8 and right plunger 9 one
It rises and moves right, the air of right gas chamber 4 is discharged by exhaust outlet 6 at this time, and left inlet valve 12 is opened, left dump valve 11 is closed, often
Pressure water is inhaled into left pump chamber 10;Right inlet valve 15 is closed simultaneously, right dump valve 14 is opened, and the water of right pump chamber 13 is discharged.
When gas piston 2 is moved to close to right dead-centre position, the boss on connecting rod shifts reversal valve 7 onto right dead-centre position,
Compressed air at this time from air inlet 5 can only enter right gas chamber 4, and gas piston 2 is pushed to drive left plunger 8 and right plunger 9 together
It moves downward, left gas chamber 3 is connected to exhaust outlet 6 and the air of left gas chamber 3 is discharged at this time, the right opening of inlet valve 15, right discharge
Valve 14 is closed, and water at atmospheric pressure is inhaled into right pump chamber 13;Left suction valve closure 12, left dump valve 11 are opened simultaneously, the water of left pump chamber 10
It is discharged.
When gas piston 2 is moved to close to left dead-centre position, right plunger 9 shifts reversal valve 7 onto left dead-centre position, presses at this time
Contracting air enters left gas chamber 3 again, and gas piston 2 is pushed to move right, and and so on normal pressure water steadying can be pressurized and export by movement.
According to the difference of pressure and discharge capacity and multiple (2~4) modular pumps can be connect in practical application, when use can start one
A modular pump can also start multiple modular pumps simultaneously, to reach the pressure and discharge capacity of needs.
Embodiment 2
A kind of high pressure water-injection pump using compressed air-driven, including cylinder 1, gas piston 2, left gas chamber 3, right gas chamber 4, into
Port 5, exhaust outlet 6, reversal valve 7, left pump piston, right pump piston, left pump chamber 10, left dump valve 11, left inlet valve 12, right pump chamber
13, right dump valve 14, right inlet valve 15, wherein gas piston 2 is connected in cylinder 1, and cylinder 1 is divided into a left side by the gas piston 2
Gas chamber 3 and right gas chamber 4;Wherein left gas chamber 3 is connected to air inlet 5, exhaust outlet 6 respectively by gas passage, and right gas chamber 4 is by being somebody's turn to do
Gas passage is connected to air inlet 5, exhaust outlet 6 respectively, and reversal valve 7 is located in the gas passage, and the reversal valve 7 controls left gas
Room 3 and the on-off of air inlet 5 and the on-off of left gas chamber 3 and exhaust outlet 6, the reversal valve 7 control right gas chamber 4 and air inlet 5
On-off and right gas chamber 4 and exhaust outlet 6 on-off;Left pump piston and right pump piston are connected to the two sides of gas piston 2, left
Pump piston is located in left pump chamber 10, exhalant canal and intake tunnel is connected separately on the left pump chamber 10, in its exhalant canal
In be connected with left dump valve 11, left inlet valve 12 is connected in its intake tunnel, right pump piston is located in right pump chamber 13, described
It is connected separately with another exhalant canal and another intake tunnel on right pump chamber 13, right dump valve is connected in its exhalant canal
14, right inlet valve 15 is connected in its intake tunnel.
The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model
Embodiment is not intended to limit the utility model.All any modifications made in the application range of the utility model are equally replaced
It changes and improves, should be included within the scope of protection of this utility model.