CN2433423Y - Multielement compound vortex steam pump - Google Patents

Abstract

The utility model relates to a multi-element compound vortex steam pump, which comprises a gas expansion vortex body, liquid pressurization reverse and obverse vortex bodies, a limited roller, etc. A movable disc has the characteristic of not only be provided with the gas expansion vortex body, but also be provided with the liquid pressurization reverse and obverse vortex bodies, and the utility model has the advantages of small size, light weight, low cost, stable operation (no pressure pulse), long service life, low noise and high efficiency. The exhaust steam can be frozen into original water so as to be pressurized together, so the energy of the steam can be made full use. The utility model can replace an electric pump so as to be widely used for feeding water to various steam boilers and be used as the pump fluid of various direct-fired type absorption refrigerating machines, and the utility model can be used as a microminiature steam engine in various required occasions.

Description

Polynary combined vortex formula steam pump

Polynary combined vortex formula steam pump belongs to the heat power engineering field.Be a kind of simple and compact for structure, volume is little, in light weight, cost is low, operation is steady, the life-span is long, noise is low, efficient height particularly, utilize thermal technology's machinery of the pressure acting pump liquid (and can produce power) of steam, can use as steam pump, also can use as steamer.

The normal operation of steam boiler needs in time to replenish soft water, therefore, must be equipped with the water pump with certain pressure of supply water and certain water output, and the running of this pump also needs a large amount of electric power.Simultaneously, steam boiler needs steam pump to be ready for use on when having a power failure to boiler water supply, in case lack of water causes the bursting of boilers.Used reciprocating steam pump complex structure, cost height (every steam pump units up to ten thousand, every boiler is equipped with two steam pumps), the rate of fault height, the maintenance cost height, the life-span is short.

Especially thermal power plant boiler, its electrically driven feedpump is the subsidiary engine of energy consumption maximum, power consumpiton accounts for 5～6% of host capacity.Because its significance in the heat production electricity generation process, flow, pressure allowance design generally all bigger than normally, requirement by " power plant's designing technique standard ", water supply system is except that stand by pump, supporting feed water pump rate of discharge should be 110% of boiler evaporation capacity, and outlet pressure is 105% of boiler rated pressure and pipeline pressure loss and a discrepancy in elevation sum.In addition, when calculating pipe resistance, also to add 10～20% allowance, and the pressure reduction of feed water pump modulating valve deposit.Therefore, when boiler capacity was maximum, the feed water pump outlet pressure also had very big affluence, and owing to the fluctuation of electricity consumption steam consumption, the feed water pump most of the time can not be moved on its projected working point again.The equipment of thermoelectricity plant all is bigger equipment, and the electrically driven feedpump of its boiler is the very large energy consumption equipment of energy-saving potential.

The operation of directly burning lithium bromide refrigerator needs motor-drive pump that liquid is pressurizeed, and the control system of complete machine can not be left the electrical network independent operating especially, and energy-saving potential is very big.

Discharge a large amount of high temperature (about 800K) tail gas during the engine operation of automobile, agricultural machinery, railway locomotive and large ship, the energy had both been wasted in the discharging of this heat, caused thermo-pollution again, needed of the heat recovery of suitable equipment badly, to produce power tail gas to environment.

By the above-mentioned fact as seen, steam boiler (comprising boiler of power plant and industrial boiler), direct fired absorption refrigerator, power vehicle (comprising automobile, agricultural machinery, railway locomotive and large ship etc.) are needed a kind of power that utilizes low taste heat energy generation power and pumping liquid---work integrated machine badly.

Task of the present utility model provide a kind of simple and compact for structure, volume is little, in light weight, cost is low, operation is steady, the life-span is long, noise is low, efficient height particularly, utilizes the pressure acting pump liquid (and can) of steam to produce thermal technology's machinery of power.

For finishing above-mentioned task, technical solution of the present utility model is: polynary combined vortex formula steam pump, comprise: Moving plate assembly (1), quiet dish (2), bent axle (3), the pump housing (4), limiting roll (5), one-level gas expands and moves vortex body (111), secondary gas expands and moves vortex body (112), the positive turn vortex body of liquid supercharging (121), vortex body (122) is moved in liquid supercharging derotation, Moving plate (13), one-level gas expansion static vortex (211), secondary gas expansion static vortex (212), liquid supercharging dextrorotation static vortex (221), liquid supercharging derotation static vortex (222), sealing bearing bush (6) is characterized in that the moving one or more Moving plate assemblies (1) of adorning of a bent axle (3); One-level gas moving vortex body (111), the secondary gas moving vortex body (112) that expands that expands is provided with around crank in groups, and expand moving vortex body (112), the positive turn vortex body of liquid supercharging (121) and the liquid supercharging derotation of moving vortex body (111), secondary gas of expanding of one-level gas is packed in with moving the axis of vortex body (122) and Moving plate (13) parallel axes and becomes Moving plate assembly (1) on the Moving plate (13); The axis of Moving plate assembly (1) and bent axle (3) parallel axes ground are contained on the crank of bent axle (3) so that bearing is moving, and the crank shaft core of bent axle (3) is by the barycenter of Moving plate assembly (1); Quiet dish (2) is installed on the pump housing (4); Each Moving plate (13) all has two quiet dishes (2) to match with it on its bilateral symmetry ground, one-level gas expansion static vortex (211), secondary gas expansion static vortex (212), liquid supercharging dextrorotation static vortex (221) and liquid supercharging derotation static vortex (222) are packed on the quiet dish (2), with one-level gas on the corresponding Moving plate assembly (1) moving vortex body (111), secondary gas derotation vortex body (122) close fit after moving vortex body (112), the positive turn vortex body of liquid supercharging (121) and the liquid supercharging that expands that expands; The moving end that is contained in each vortex body of sealing bearing bush (6); Bent axle (3) is loaded on the pump housing (4) by bearing is moving; Respectively have one group of parallel axes to go up corresponding mutually spacing hole (131,23) in bent axle (3) axis, Moving plate (13) and quiet dish (2) on Moving plate (13) and the quiet dish (2), limiting roll (5) is located in and plays only revolution and the effect of not rotation is beneficial to install and adjust of restriction Moving plate assembly (1) in separately the spacing hole (131,23); The bent axle (3) of single action disc assembly (1) then installs counterweight (7).

Its second characteristic is the moving vortex bodyes (111) of one-level gas expansion, secondary gas expands and moves vortex body (112), the moving vortex body (122) of positive turn vortex body of liquid supercharging (121) and liquid supercharging derotation is all served as reasons about its flat partition board (1112,1122,1212, the left side of median plane symmetry 1222), right vortex body (111a and 111b, 112a and 112b, 1211a and 1211b and 1221a and 1221b) constitute, and flat partition board (1112,1122,1212, sealing bearing bush (6) width of one group of diameter less than the vortex body end arranged 1222), parallel axes is in the through hole (113 of vortex body axis, 1213,1223), with a balance left side, right corresponding expansion, pressure in the pump sap cavity.

Its 3rd characteristic is positive turn vortex body of liquid supercharging (121) and the moving vortex body (122) of liquid supercharging derotation, liquid supercharging dextrorotation static vortex (221) is opposite with the rotation direction of liquid supercharging derotation static vortex (222), and be the involuted angle of a semi-circumference (3 π radian), flat partition board (1212,1222) upward thread form through hole in January should be arranged mutually with the vortex body end that matches, positive turn vortex body of liquid supercharging (121) and liquid supercharging dextrorotation static vortex (221), the a pair of pump sap cavity one-level pump liquid unit that becomes parallel with one another that the moving vortex body (122) of liquid supercharging derotation matches with liquid supercharging derotation static vortex (222) and forms, eliminate the vibration of pump liquid with the sudden change of eliminating the pump flow velocity, for the occasion that elevated pressures pump liquid requires, use multistage such pump liquid units in series to improve the pump hydraulic coupling.

Its 4th characteristic is the difference in spacing hole (131) footpath and limiting roll (5) footpath wherein on the Moving plate (13) and the footpath of the spacing hole (23) on the quiet dish (2) and revolution diameter difference and that equal Moving plate assembly (1) in limiting roll (5) footpath wherein.

Fig. 1 for Moving plate assembly (1) just, bow, worm's eye view.

Fig. 2 is the whole machine installation graph of a relation.

Fig. 3, Fig. 4 are respectively left and right quiet dish (2) assembly plan view.

Fig. 5 moves master, the plan view of vortex body (112) for secondary gas expands.

Fig. 6 is that (the two shape, morpheme are just the same, only look the positive and negative of installation and become the moving vortex body (121) of dextrorotation and vortex body (122) is moved in derotation for the axial sectional view of the positive and negative turn vortex body of liquid supercharging (121,122).

Fig. 7 is flow (flow velocity) the angular dependence C of existing vortex pump ₁(flow (flow velocity) the angular dependence C of Fig. 7-a) and polynary combined vortex formula steam pump ₂(Fig. 7-b).

Fig. 8 is the location diagram of bent axle (3) and counterweight (7).

Existing vortex pump has a movable orbiting scroll and a quiet whirlpool dish, and the vortex body of its dynamic and static whirlpool dish is the gradually open cylinder that is formed by the involute that basic circle launches, and the number of turns of involute is 1.5 circles.Although its efficient height, advantage of low manufacturing cost, it produces tangible pressure pulse when operation, and machine vibration is big, can't move under high speed.For reducing or eliminating pressure pulse, respectively dig out similar semicircular groove in the centre area of dynamic and static whirlpool dish.Facts have proved, this is merely able to play limited effect for reducing pressure pulse, reason is: the variation of the swept volume that dynamic and static vortex body constituted of its dynamic and static whirlpool dish is not linear about angle, but the quadratic function of angle, when bent axle is done the constant speed rotation, the rate of change of swept volume is that flow rate of liquid then is the linear function of angle, behind the rotation one-period, and the and then beginning of next cycle, at this moment the rate of change of swept volume has a sudden change, and promptly flow velocity has a sudden change.Thereby can not eliminate pressure pulse effectively.If A is a swept volume, θ is the angle of dynamic and static vortex body contact position, and dV/dt is that the rate of change of swept volume is a flow rate of liquid, then is calculated as follows: $=A_2+\mathrm{\π}{a}^2{\mathrm{\θ}}^2(1-\frac{\mathrm{\δ}}{\mathrm{\πa}})+{\mathrm{\π}}^2{a}^2\mathrm{\θ}(1-\frac{{\mathrm{\δ}}^2}{{\mathrm{\π}}^2{a}^2})$ When δ=π a, A=A ₂, get the height that h is a vortex body, then swept volume is: V=Ah, thereby flow velocity is: $\frac{\mathrm{dV}}{\mathrm{dt}}[2\mathrm{\π}{a}^2\mathrm{\θ}(1-\frac{\mathrm{\δ}}{\mathrm{\πa}})+{\mathrm{\π}}^2{a}^2(1-\frac{{\mathrm{\δ}}^2}{{\mathrm{\π}}^2{a}^2})]\frac{\mathrm{d\θ}}{\mathrm{dt}}=[2\mathrm{\π}{a}^2\mathrm{\θ}(1-\frac{\mathrm{\δ}}{\mathrm{\πa}})+{\mathrm{\π}}^2{a}^2(1-\frac{{\mathrm{\δ}}^2}{{\mathrm{\π}}^2{a}^2})]\mathrm{\ω}$

Wherein ω is the rotating speed of bent axle.As seen, swept volume is relevant with angle, and the rate of change of swept volume all has a sudden change in each stroke, and promptly flow velocity has a sudden change.So sudden change takes place in flow velocity in the longer pipe road, is bound to produce the judder effect of similar water attack, and not exclusively is because the narrow cause of liquid flow passageway.The relation of flow velocity and angle is seen Fig. 3-a.Only manage to eliminate this sudden change of flow speed, could fundamentally address this problem.The pump sap cavity that two rotation directions that the utility model adopted the are opposite scheme that becomes one-level pump liquid cell operation parallel with one another has solved this problem satisfactorily.The flow (flow velocity) " complementary surplus and deficiency " of two pump liquid unit, overall flow rate and angle are irrelevant, and overall flow rate is directly proportional with the rotating speed of bent axle.The relation of flow velocity and angle is seen Fig. 3-b, when pressure is higher, then adopts multistage such pump liquid units in series work.

Below be partial design data computation process with the polynary combined vortex formula of the matching used FWQB10-13 type of SHL10-13A II type boiler steam pump:

$=\frac{1.249853991\×(1-\frac{1}{16.8})}{0.8\×\frac{1.3}{1.3-1}\×[1-{\left(\frac{2}{16.8}\right)}^{\frac{1.3-1}{1.3}}]}{V}_1=0.873755086\·V_1$

Wherein κ is a safety factor, V _gBe high pressure steam volume, V ₁Be last water capacity.

By the above example that calculates with the design data of the polynary combined vortex formula of the matching used FWQB10-13 type of SHL10-13A II type boiler steam pump as can be known: when specifically making, be to determine gas expansion vortex body (11 according to the principle and the dynamically balanced principle of power coupling, 21), liquid supercharging vortex body (121,122,221,222) height, should pay special attention to gas expansion vortex body (11,21) add certain safety factor κ, because when place vapor pressure and pumping pressure equate, vapor pressure is high more, the ability of pumping liquid is more little, the amount of liquid that is pumping is more little, so safety factor κ is a very important coefficient, generally should get κ＞1.15.

The working principle of polynary combined vortex formula steam pump is: high pressure steam enters the moving vortex body (111) of one-level gas expansion, secondary gas expands and moves vortex body (112) and one-level gas expansion static vortex (211), externally acting begins to expand after the expansion chamber that secondary gas expansion static vortex (212) constitutes, driving is moving at each, Moving plate assembly (1) under the common restriction of static vortex and limiting roll (5) is done the revolution of not rotation around the axle center of bent axle (3), at this moment the moving vortex body (122) of positive turn vortex body of liquid supercharging (121) and liquid supercharging derotation just is synchronized with the movement, the positive turn vortex body of liquid supercharging (121) clocklike changes with the pump sap cavity that liquid supercharging derotation static vortex (222) is constituted simultaneously with liquid supercharging dextrorotation static vortex (221) and the moving vortex body (122) of liquid supercharging derotation, because the two rotation direction is opposite, pump liquid speed size is complementary, make master cylinder liquid speed become the linear function (the two is directly proportional) of speed of crankshaft, thereby fundamentally eliminated the pressure pulse of pump liquid; Mutual restriction between limiting roll (5) and dynamic and static whirlpool dish and each dynamic and static vortex body, guaranteed the translation of Moving plate assembly (1)---do the revolution of not rotation around the axle center of bent axle (3), mutual restriction between limiting roll (5) and the dynamic and static whirlpool dish has also made things convenient for each installation and adjustment zero, parts; It is pressurized together that exhaust steam after the acting condensates into source water, thereby the energy of steam is utilized fully; In the working procedure, sealing bearing bush (6) has played the axially effect of thermal stress and cold clearance of eliminating between each dynamic and static vortex body; Through hole (113,1213,1223) on the flat partition board (112,1212,1222) of each moving vortex body (11,121,122), at any time balance the pressure in the left and right corresponding expansion, pump sap cavity; For the polynary combined vortex formula of the many Moving plates steam pump of connecting mutually in multistage pump liquid unit, the pump hydraulic coupling has obtained corresponding raising.

Existing gas expansion vortex body on Moving plate of polynary combined vortex formula steam pump, there are the positive and negative vortex body of pump liquid and bent axle can install the distinguishing feature of a plurality of Moving plates again, determined to have low, the high remarkable advantage of efficient particularly of its geneogenous volume little, in light weight (be about same category of device 1/2), cost low (be about same category of device 80%), operation steady (no pressure pulse), life-span long (for more than 3 times of same category of device), noise; It is pressurized together that exhaust steam condensates into source water, and the energy of steam is utilized fully; Substitute motor-drive pump work, can significantly reduce operating cost; It can be widely used in the last water of the various steam boiler that comprises station boiler and the pump liquid of various direct-fired absorption refrigerating machine, reduces to can be used as the occasion that the microminiature steamer is used for various needs after the height of liquid supercharging vortex body.

Claims (4)

1. many first combined vortex formula steam pumps, comprise: Moving plate assembly (1), quiet dish (2), bent axle (3), the pump housing (4), limiting roll (5), one-level gas expands and moves vortex body (111), secondary gas expands and moves vortex body (112), the positive turn vortex body of liquid supercharging (121), vortex body (122) is moved in liquid supercharging derotation, Moving plate (13), one-level gas expansion static vortex (211), secondary gas expansion static vortex (212), liquid supercharging dextrorotation static vortex (221), liquid supercharging derotation static vortex (222), sealing bearing bush (6) is characterized in that the moving one or more Moving plate assemblies (1) of adorning of a bent axle (3); One-level gas moving vortex body (111), the secondary gas moving vortex body (112) that expands that expands is provided with around crank in groups, and expand moving vortex body (112), the positive turn vortex body of liquid supercharging (121) and the liquid supercharging derotation of moving vortex body (111), secondary gas of expanding of one-level gas is packed in with moving the axis of vortex body (122) and Moving plate (13) parallel axes and becomes Moving plate assembly (1) on the Moving plate (13); The axis of Moving plate assembly (1) and bent axle (3) parallel axes ground are contained on the crank of bent axle (3) so that bearing is moving, and the crank shaft core of bent axle (3) is by the barycenter of Moving plate assembly (1); Quiet dish (2) is installed on the pump housing (4); Each Moving plate (13) all has two quiet dishes (2) to match with it on its bilateral symmetry ground, gas expansion static vortex (21), liquid supercharging dextrorotation static vortex (221) and liquid supercharging derotation static vortex (222) are packed on the quiet dish (2), with one-level gas on the corresponding Moving plate assembly (1) moving vortex body (111), secondary gas derotation vortex body (122) close fit after moving vortex body (112), the positive turn vortex body of liquid supercharging (121) and the liquid supercharging that expands that expands; The moving end that is contained in each vortex body of sealing bearing bush (6); Bent axle (3) is loaded on the pump housing (4) by bearing is moving; Respectively have one group of parallel axes to go up corresponding mutually spacing hole (131,23) in bent axle (3) axis, Moving plate (13) and quiet dish (2) on Moving plate (13) and the quiet dish (2), limiting roll (5) is located in and plays only revolution and the effect of not rotation is beneficial to install and adjust of restriction Moving plate assembly (1) in separately the spacing hole (131,23).

2. according to the described polynary combined vortex formula steam pump of claim 1, it is characterized in that the moving vortex body (111) of one-level gas expansion, secondary gas expands and moves vortex body (112), the moving vortex body (122) of positive turn vortex body of liquid supercharging (121) and liquid supercharging derotation is all served as reasons about its flat partition board (1112,1122,1212, the left side of median plane symmetry 1222), right vortex body (111a and 111b, 112a and 112b, 1211a and 1211b and 1221a and 1221b) constitute, and flat partition board (1112,1122,1212, sealing bearing bush (6) width of one group of diameter less than the vortex body end arranged 1222), parallel axes is in the through hole (113 of vortex body axis, 1213,1223), with a balance left side, right corresponding expansion, pressure in the pump sap cavity.

3. according to the described polynary combined vortex formula steam pump of claim 1, it is characterized in that the moving vortex body (122) of positive turn vortex body of liquid supercharging (121) and liquid supercharging derotation, liquid supercharging dextrorotation static vortex (221) is opposite with the rotation direction of liquid supercharging derotation static vortex (222), and be the involuted angle of a semi-circumference (3 π radian), flat partition board (1212,1222) upward thread form through hole in January should be arranged mutually with the vortex body end that matches, positive turn vortex body of liquid supercharging (121) and liquid supercharging dextrorotation static vortex (221), the vibration of pump liquid is eliminated in a pair of pump sap cavity one-level pump liquid unit that becomes parallel with one another that the moving vortex body (122) of liquid supercharging derotation matches with liquid supercharging derotation static vortex (222) and forms with the sudden change of eliminating the pump flow velocity.

4. according to the described polynary combined vortex formula steam pump of claim 1, it is characterized in that the difference in spacing hole (131) footpath and limiting roll (5) footpath wherein on the Moving plate (13) and the footpath of the spacing hole (23) on the quiet dish (2) and revolution diameter difference and that equal Moving plate assembly (1) in limiting roll (5) footpath wherein.

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