CN206495757U - Pneumatic opposite acting ram pump - Google Patents

Abstract

The utility model discloses the pneumatic opposite acting ram pump of one kind, including the pump housing, the pump housing inner chamber of tubular is respectively arranged on the left side and the right side one group of cap, both sides up and down in the middle part of the pump housing are machined with upper water-out mouthful and lower water inlet respectively, and the left and right sides end of the pump housing is separately installed with a flange and drive mechanism；The cap and drive mechanism of the pump housing left and right sides have identical structure；The cap in left side includes piston rod, and piston rod right-hand end the disk spring I, embolism and the disk spring II that wear successively.Pneumatic opposite acting ram pump described in the utility model, by rational water pump tank design, amplifies Pump Suction drainability, and using relatively double plug forms, the mobile performance for making water rationally, saves energy loss, and is not easily blocked, and reduces probability of failure.

Description

Pneumatic opposite acting ram pump

Technical field

The utility model is related to a kind of pneumatic opposite acting ram energy-saving water pump.

Background technology

Metallurgy industry continuous casting workshop is more severe with pump working condition, typically all the equipment such as crystallizer, fan-shaped section Circulation cooling water.There is substantial amounts of cooling iron sheet in water, the large granular impurity such as silt is more muddy, and is generally flow Larger, the pump working time is long, and power consumption is huge, and fault rate is high, increases the production cost of enterprise.

At present, continuous casting workshop sedimentation basin or production technology link all use centrifugal water pump or reciprocating post with water pump is most of Water pump (motor driving) is filled in, the problem of existing mainly has：

First, centrifugal water pump compares plunger pump, less efficient, and generally 70~80%, there is bulky grain miscellaneous if water quality is bad Efficiency can be more lower under matter or heavy traffic condition.

2nd, reciprocating type plunger pump efficiency can be high compared to centrifugal pump, and what highest had can reach 98%, but power consumption compared with It is many.

Therefore, continuous casting workshop is with efficiency of centrifugal pump is relatively low, plunger water pump power consumption is more.

The content of the invention

According to technical problem set forth above, and a kind of pneumatic opposite acting ram pump is provided, to solve existing company Workshop water pump is cast, has the shortcomings that less efficient or power consumption is more.The technological means that the utility model is used is as follows：

A kind of pneumatic opposite acting ram pump, including the pump housing, the pump housing inner chamber of tubular is respectively arranged on the left side and the right side one group of bolt Both sides up and down in the middle part of cock body, the pump housing are machined with upper water-out mouthful and lower water inlet respectively, and the left and right sides end of the pump housing is pacified respectively Equipped with a flange and drive mechanism；The cap and drive mechanism of the pump housing left and right sides have identical structure；Left side Cap includes piston rod, and piston rod right-hand end the disk spring I, embolism and the disk spring II that wear successively；It is described Drive mechanism include cylinder and connecting joint, the two ends of the connecting joint couple the piston joint and piston rod of cylinder respectively Left end；When source of the gas drives cylinder moving, cap is driven to move reciprocatingly simultaneously by connecting joint.

Include the sealing of remote upper water-out mouthful side and close to upper water-out mouthful side as the preferred embolism outer wall Closing in portion；The sealing is machined with the R angles seal groove for installing sealing ring, and the closing in portion has taper, and cone angle is α, 15°≤α≤20°；The embolism has groove close to upper water-out mouthful side center, and the side wall of groove has taper, and cone angle is β, 25°≤β≤30°。

Carbon fibre materials sealing ring is added for PTFE as preferably described sealing ring, sealing ring cross section is semicircle.

As the preferred cylinder with being provided with reversal valve, the port of export of upper water-out mouthful and entering for lower water inlet between source of the gas Mouth end is respectively arranged with a check valve, water source is entered from lower water inlet, upper water-out mouthful discharge.

Locking nut pressure disk spring I is passed on left as the preferred piston rod, and keeps disk spring I to have one Fixed pretightning force；The piston rod right-hand end is locked disk spring II by nut.

It is cast member as the preferably described pump housing, pump housing inner chamber with embolism contact surface there is 0.08mm~0.12mm to plate Cr Layer.

As the preferred piston rod with being provided between flange for sealed J-type sealing ring, described flange outside is set It is equipped with the pressing plate for compression.

It is Φ Amm as the external diameter of the preferred embolism, the internal diameter of the pump housing is Φ Bmm, Φ A=Φ B-4.

It it is 20 ° as preferred closing in portion cone angle；The sidewall taper β of the groove is 28 °.

As the preferred pump housing inner chamber and embolism contact surface there is 0.1mm to plate Cr layers.

Compared with prior art, pneumatic opposite acting ram pump described in the utility model, with advantages below：

1st, pneumatic opposite acting ram pump described in the utility model, the pump housing inner chamber of tubular is respectively arranged on the left side and the right side one Both sides up and down in the middle part of group cap, the pump housing are machined with upper water-out mouthful and lower water inlet respectively, are set by rational water pump cylinder body Meter, amplifies Pump Suction drainability, using relatively double plug forms, and the mobile performance for making water rationally, saves energy loss, and not Easily block, reduce probability of failure.

2nd, pneumatic opposite acting ram pump described in the utility model, the left and right sides end of the pump housing is separately installed with one Flange and drive mechanism；Described drive mechanism includes cylinder and connecting joint, when source of the gas drives cylinder moving, passes through connection Joint drives cap to move reciprocatingly simultaneously.Realize and the existing compressed air energy sources of continuous casting workshop are substituted into traditional electric energy Driving, energy-saving and emission-reduction are that enterprise saves electric energy, optimized the structure of production.

3rd, pneumatic opposite acting ram pump described in the utility model, pump housing inner chamber and embolism contact surface have 0.08~ 0.12mm plates Cr layers, and Cr layers of plating both reduces frictional resistance, protects the pump housing to exempt the erosion of the media such as water again, uses Cr layers of pump of plating Body can save resource and cost without using the stainless steel pump housing, and plate Cr layers too thin, then coating and matrix binding ability be not It is good, easily peel off；Plating is Cr layers too thick, then coating internal stress skewness, easily in internal stress under heated and particular surroundings Effect is lower to produce cracking, short life.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

Fig. 1 is structural representation of the present utility model (plunger home position, that is, empty medium).

Fig. 2 is the utility model structural representation (plunger motion extreme position, i.e., full of medium).

Fig. 3 is the utility model runtime sketch (C is source of the gas in figure, and D is airflow direction, and E is water (flow) direction).

Fig. 4 is the utility model pump body mplifying structure schematic diagram.

Fig. 5 is the mplifying structure schematic diagram of the utility model embolism.

Fig. 6 is overall schematic of the present utility model.

Wherein：1st, cylinder, 2, connecting joint, 3, pressing plate, 4, J-type sealing ring, 5, flange, 6, piston rod, 7, the pump housing, 8, lock Tight nut, 9, disk spring I, 10, embolism, 11, disk spring II, 12, nut, 13, sealing ring, 14, reversal valve, 15, unidirectional Valve, 16, delivery port, 17, water inlet.

Embodiment

As shown in Fig. 1 to Fig. 6, a kind of pneumatic opposite acting ram pump, including the pump housing 7, the described pump housing 7 is cast member, The inner chamber of the pump housing 7 with the contact surface of embolism 10 there is 0.08mm~0.12mm to plate Cr layers, and the inner chamber of the pump housing 7 preferably connects with embolism 10 There is contacting surface 0.1mm to plate Cr layers.Cr layers of plating, this coating surface is smooth, reduces the frictional resistance of sealing ring and cavity；And This coating antirust ability is stronger, because continuous casting workshop medium water quality is more complicated, with the presence of corrosion factor, therefore plates Cr layers of presence The service life of pump can be greatly prolonged.

The inner chamber of the pump housing 7 of tubular is respectively arranged on the left side and the right side one group of cap, and the both sides up and down at the middle part of the pump housing 7 are processed respectively Have upper water-out mouthfuls 16 and a lower water inlet 17, upper water-out mouthful 16 and lower water inlet 17 are arranged at the center of the pump housing 7, it is described on go out The mouth of a river 16 and the end of lower water inlet 17 adapter are provided with the flanged plate for connection, make to enter as the lower water inlet 17 of lower mouth Water, as 16 water outlets of upper water-out mouthful suitable for reading, the flow direction for realizing water is bottom in and top out.

The left and right sides end of the pump housing 7 is separately installed with a flange 5 and drive mechanism；The bolt of the left and right sides of the pump housing 7 Cock body and drive mechanism have identical structure；The cap in left side include piston rod 6, and piston rod 6 right-hand end according to The secondary disk spring I9 worn, embolism 10 and disk spring II11；The piston rod 6 passes on left locking nut 8 and depresses dish-shaped bullet Spring I9, and keep disk spring I9 that there is certain pretightning force；The right-hand end of piston rod 6 is by nut 12 by disk spring II11 is locked.

The outer wall of embolism 10 includes the sealing away from 16 sides of upper water-out mouthful and the receipts close to 16 sides of upper water-out mouthful Oral area；The sealing is machined with the R angles seal groove for installing sealing ring 13, described R angles seal groove be provided with it is multiple, such as Shown in Fig. 5, the closing in portion has taper, and cone angle is α, and 15 °≤α≤20 °, concrete numerical value can be carried out according to physical device size Selection, closing in portion cone angle preferably is 20 °；Closing in portion herein forms profile to retain the position of two seal grooves 13 Close up；The embolism 10 has groove close to 16 side centers of upper water-out mouthful, and the side wall of groove has taper, and cone angle is β, 25 ° ≤ β≤30 °, concrete numerical value can be selected according to physical device size, and the sidewall taper β of the groove preferably is 28 °, and And make the processing of groove keep embolism 10 certain thickness position to do to put outside shape.

This special cone angle design of seal groove 13, it is therefore intended that make to increase pushing away for medium in cap motion process Power and reduction and the frictional resistance of cylinder body, i.e. cap move to B from position A, and 25~30 ° of angle does horn mouth, Neng Gouzeng The big thrust for medium, particularly with the medium for having large granular impurity；Cap moves to A, 15~20 ° from position B simultaneously Angle do necking, reduce the contact area of seal groove 13 and cylinder body, reduce frictional resistance.

Described sealing ring 13 is that PTFE adds carbon fibre materials sealing ring, and such a material has wear-resisting, high temperature resistant, used The advantages of long lifespan and convenient maintenance and replacement, the smooth of embolism and cylinder interior can be effectively protected, the cross section of sealing ring 13 is half Outer periphery seal groove (i.e. R angles seal groove) matching size in circle, with embolism 10 is closed, and this sealing structure form stress is closed Reason.And ensure to close with the outer periphery seal groove matching size on embolism 10.

Described drive mechanism includes cylinder 1 and connecting joint 2, and the two ends of the connecting joint 2 couple cylinder 1 respectively The left end of piston joint and piston rod 6；The piston rod 6 between flange 5 with being provided with for sealed J-type sealing ring 4, institute The outside of flange 5 stated is provided with the pressing plate 3 for compression.

When source of the gas drives cylinder 1 to move, drive cap to move reciprocatingly simultaneously by connecting joint 2, in the pump housing 7 by In the continuous contraction change of gas volume, WATER AS FLOW MEDIUM is drawn into discharging the pump housing 7, reaches the purpose of pump water.

The cylinder 1 is with being provided with reversal valve 14 between source of the gas, the port of export of upper water-out mouthful 16 and entering for lower water inlet 17 Mouth end is respectively arranged with a check valve 15, water source is entered from lower water inlet 17, and upper water-out mouthful 16 is discharged.The embolism 10 External diameter is Φ Amm, and the internal diameter of the pump housing 7 is Φ Bmm, Φ A=Φ B-4.Embolism 10 is to prevent both with the unilateral 2mm gaps of the pump housing 7 Hard contact, causes unnecessary scuffing to damage；Between the two fill sealing ring 13, will not medium cause leakage.

As shown in figure 3, being that C is gas in the runtime sketch of pneumatic opposite acting ram pump described in the utility model, figure Source, D is airflow direction, and E is water (flow) direction.

The water pump system of pneumatic opposite acting ram pump described in the utility model, power gas source comes from continuous casting workshop and had by oneself In system, cylinder 1 is acted on by reversal valve 14, the pump housing 7 controls media flow direction by import and outlet side check valve 15.

I.e. during plunger pump water inlet, influent side check valve open state, water outlet side check valve closed state；Pump exiting water process, Water outlet side check valve open state, influent side check valve closed state, WATER AS FLOW MEDIUM is constantly from the discharge cavity of delivery port 16, until row Sky, completes one cycle.

Pneumatic opposite acting ram pump described in the utility model, is a kind of energy-saving water pump, main body does symmetrical phase by two sides Constituted to the plunger of motion, main parts size is in addition to reversal valve 14, and remaining quantity is 2.

Pneumatic opposite acting ram pump described in the utility model, comes from the source of the gas in continuous casting workshop system by commutation Valve 14 acts on cylinder 1, sets the diameter of cylinder (internal diameter) of cylinder 1 as N times of the diameter of the pump housing 7 (internal diameter)；The inner chamber of the cylinder 1 A diameter of SC, pressure is PC, and the internal diameter of the pump housing 7 is SB, and pressure is PB.

Due to thrust F=S × P that piston is subject to, then SC × PC=SB × PB, and the diameter of cylinder (internal diameter) of cylinder 1 is N times of the diameter of the pump housing 7 (internal diameter) of the design, then PB=N × PC, i.e. N times of pump pressure amplification, in the certain feelings of shop air pressure Under condition, the lift of pump can be changed with the diameter of the pump housing 7 (internal diameter) relation by changing this cylinder 1.

Pneumatic opposite acting ram pump described in the utility model, during work, when the plunger in the pump housing 7 by position B in place It is pump water inlet process during putting A, now influent side Hydraulic Elements check valve open state, water outlet side Hydraulic Elements check valve Closed state, WATER AS FLOW MEDIUM is constantly from water inlet 17 flows into cavity, until being full of；When the plunger in the pump housing 7 is by position A to position B During, it is pump exiting water process, now water outlet side Hydraulic Elements check valve open state, influent side Hydraulic Elements check valve closes shape State, WATER AS FLOW MEDIUM is constantly from the discharge cavity of delivery port 16, until emptying.So complete one cycle.

The import and export position of traditional plunger water pump is all in the one side of the pump housing, process of the WATER AS FLOW MEDIUM from import to outlet, false If inlet velocity is VI, muzzle velocity is VO, then

VO=-VI

The process of speed-shifting is the consumption of energy, and velocity energy consumption is：

N=1/2mV2 × L

L is pump housing intracavitary length.

Import and export are arranged on pump housing chamber center, are also by pneumatic opposite acting ram pump described in the utility model In terms of considering the energy loss for reducing water, the efficiency of pump can be so improved.

As shown in figure 1, two end plugs in the pump housing 7 are in the position that position B, i.e. home position and plunger empty WATER AS FLOW MEDIUM Put, now two end plugs are just contacted.The advantage of embolism self structure, in the discharge end plug of water two during head-on collision, post Plug opens greatly big conjunction, and speed is fast, and thrust is especially big, and some big granule foreigns are discharged in help, while the water in plunger cavity has very Big reaction force expands plunger, and now disk spring I9 can play cushioning effect.Disk spring II11 is then to strengthen Embolism II10 intensity, the deformation for preventing embolism II10 excessive reduces the probability of fatigue deformation, extends the life-span, meanwhile, in order to keep away Exempt from the excessive collision of two end plugs, slow down impulsive force.

Pneumatic opposite acting ram pump described in the utility model, by rational water pump tank design, makes water pump suction Outlet capacity effectively amplifies, and using relatively double plug forms, makes the mobile performance of water more reasonable, saves energy loss, and plunger is opened greatly Big close is not easily blocked, and reduces equipment fault probability, saves electric energy, has reached the purpose of energy-saving and emission-reduction.

Pneumatic opposite acting ram pump described in the utility model, this big water pump exactly continuous casting for opening big conjunction working forms What production technology needed.Pneumatic opposite acting ram pump described in the utility model, devises this plunger water pump on the whole Operation process system, includes the connection of pipeline parts and equipment, optimizes the design of the pump housing, from plunger water pump overal system design Operation process.

Pneumatic opposite acting ram pump described in the utility model, for having at source of the gas, more particularly to continuous casting workshop technique Produce source of the gas and utilize energy-saving and emission-reducing upgrading project.Continuous casting workshop carries out energy saving optimizing upgrading, utilizes continuous casting heat Base produces substantial amounts of hot reserve compressed gas energy.These substantial amounts of compressed gas energies are with regard to energy-saving water pump of the present utility model Drive energy, thus greatly save pump electric energy, and environment friendly and pollution-free, meet the carbon drop political affairs of national energy-saving emission reduction Plan.

Pneumatic opposite acting ram pump described in the utility model, in the existing compression obtained in technique productions of continuous casting workshop On the basis of air-energy, from the aspect of the production technology and saving energy consumption with reference to continuous casting workshop, by the existing compressed gas in workshop A kind of pneumatic opposite acting ram energy-saving water pump and system are designed using combining with plunger water pump in body source.

Pneumatic opposite acting ram pump described in the utility model, is only single cylinder water pump, to pursue continuous and big flow, energy Enough multi-cylinders of design as needed are worked continuously pneumatic plunger energy-saving water pump.

It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality New technical scheme and its inventive concept is subject to equivalent substitution or change, should all cover protection domain of the present utility model it It is interior.

Claims (10)

1. a kind of pneumatic opposite acting ram pump, it is characterised in that including the pump housing (7), the pump housing (7) inner chamber left and right sides of tubular It is respectively equipped with the both sides up and down in the middle part of one group of cap, the pump housing (7) and is machined with upper water-out mouthful (16) and lower water inlet (17) respectively, The left and right sides end of the pump housing (7) is separately installed with a flange (5) and drive mechanism；

The cap and drive mechanism of the pump housing (7) left and right sides have identical structure；

The cap in left side includes piston rod (6), and piston rod (6) right-hand end disk spring I (9), the bolt worn successively Fill in (10) and disk spring II (11)；

Described drive mechanism includes cylinder (1) and connecting joint (2), and the two ends of the connecting joint (2) couple cylinder respectively (1) piston joint and the left end of piston rod (6)；

When source of the gas drives cylinder (1) motion, by connecting joint (2) while driving cap to move reciprocatingly.

2. pneumatic opposite acting ram pump according to claim 1, it is characterised in that：

Embolism (10) outer wall includes the sealing of remote upper water-out mouthful (16) side and close to upper water-out mouthful (16) side Closing in portion；

The sealing is machined with the R angles seal groove for installing sealing ring (13), and the closing in portion has taper, and cone angle is α, 15°≤α≤20°；

The embolism (10) has groove close to upper water-out mouthful (16) side center, and the side wall of groove has taper, and cone angle is β, 25°≤β≤30°。

3. pneumatic opposite acting ram pump according to claim 2, it is characterised in that：

Described sealing ring (13) is that PTFE adds carbon fibre materials sealing ring, and sealing ring (13) cross section is semicircle.

4. pneumatic opposite acting ram pump according to claim 1 or 2, it is characterised in that：

The cylinder (1) is with being provided with reversal valve (14) between source of the gas, the port of export and lower water inlet (17) of upper water-out mouthful (16) Entrance point be respectively arranged with a check valve (15), water source is entered from lower water inlet (17), upper water-out mouthful (16) discharge.

5. pneumatic opposite acting ram pump according to claim 1 or 2, it is characterised in that：

The piston rod (6) passes on left locking nut (8) pressure disk spring I (9), and keeps disk spring I (9) to have one Fixed pretightning force；

Piston rod (6) right-hand end is locked disk spring II (11) by nut (12).

6. pneumatic opposite acting ram pump according to claim 1 or 2, it is characterised in that：

The described pump housing (7) is cast member, and the pump housing (7) inner chamber with embolism (10) contact surface there is 0.08mm~0.12mm to plate Cr Layer.

7. pneumatic opposite acting ram pump according to claim 1 or 2, it is characterised in that：

It is provided between the same flange of the piston rod (6) (5) for sealed J-type sealing ring (4), described flange (5) outside is set It is equipped with the pressing plate (3) for compression.

8. pneumatic opposite acting ram pump according to claim 1 or 2, it is characterised in that：

The external diameter of the embolism (10) is Φ Amm, and the internal diameter of the pump housing (7) is Φ Bmm, Φ A=Φ B-4.

9. pneumatic opposite acting ram pump according to claim 2, it is characterised in that：

Closing in portion cone angle is 20 °；

The sidewall taper β of the groove is 28 °.

10. pneumatic opposite acting ram pump according to claim 6, it is characterised in that：

The pump housing (7) inner chamber with embolism (10) contact surface there is 0.1mm to plate Cr layers.