CN105299260A - Hydraulic-control self-suction type fluid proportion adding device - Google Patents
Hydraulic-control self-suction type fluid proportion adding device Download PDFInfo
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- CN105299260A CN105299260A CN201510655899.5A CN201510655899A CN105299260A CN 105299260 A CN105299260 A CN 105299260A CN 201510655899 A CN201510655899 A CN 201510655899A CN 105299260 A CN105299260 A CN 105299260A
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- spool
- hydraulic control
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- 239000012530 fluid Substances 0.000 title claims abstract description 114
- 230000035772 mutation Effects 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000007788 liquid Substances 0.000 description 6
- RTKIYNMVFMVABJ-UHFFFAOYSA-L thimerosal Chemical compound [Na+].CC[Hg]SC1=CC=CC=C1C([O-])=O RTKIYNMVFMVABJ-UHFFFAOYSA-L 0.000 description 6
- 229940033663 thimerosal Drugs 0.000 description 6
- 238000005406 washing Methods 0.000 description 4
- 238000005276 aerator Methods 0.000 description 3
- 238000003973 irrigation Methods 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006213 oxygenation reaction Methods 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000003619 algicide Substances 0.000 description 2
- 230000003260 anti-sepsis Effects 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 244000037666 field crops Species 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Accessories For Mixers (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to the technical field of fluid control and discloses a hydraulic-control self-suction type fluid proportion adding device. The device comprises a body, wherein a main runner into which a fluid under pressure is guided is arranged in the body; the main runner penetrates through the body in the flowing direction of the fluid; at least one abrupt structure with the cross section becoming larger abruptly is arranged in the main runner; and the main runner is radially communicated with an auxiliary runner allowing another constant-pressure fluid to flow into the main runner at the position of the abrupt structure. According to the design, when the fluid under pressure passes the abrupt structure, the cross section of the fluid becomes larger abruptly, the pressure of the fluid reduces abruptly, and a hole effect is caused; and negative pressure which is produced guides the constant-pressure fluid into the main runner through the auxiliary runner, so that the fluid under pressure and the constant-pressure fluid are mixed uniformly. Provided that a fluid flows into the main runner, the constant-pressure fluid in the auxiliary runner can be absorbed through the pressure difference, so that effects of fixed-proportion mixing and real-time mixing are achieved.
Description
Technical field
The present invention relates to fluid control technology field, particularly relate to the self-priming fluid proportional adding set of a kind of hydraulic control.
Background technique
Adding of existing fluid antimicrobial agent, normally undertaken by artificial mode of adding; Also have by adopting liquid slow-release bottle and solid slow-release block to add.Use these modes to add, except labor intensive and trouble, subject matter be cannot on time, quantitative and automatically add with actual ratio.
The urinal of existing flush toilet and communal bathroom, when bath, does not quantitatively add the device of sterilizing disinfectant in bath ratio.
Present automatic washing machine, has the function adding thimerosal when rinsing; Adding of thimerosal manually realizes, and cannot add in proportion according to the number of institute's water requirement.
Existing water tap, once turning on, often the water yield is excessive, and the bad water habits of people makes the waste of water surprising.If mix a large amount of bubbles in water, the object of gentle current, using water wisely just can be realized.
The cooling tower of the equipment such as central air-conditioner, in order to suppress bacterium algae to grow, will add antisepsis algicide in cooling water.Being all regularly by manually adding now, cannot realizing immediately adding and mend how much water when supplementary cooling water and just adding how many medicines in proportion.Not only waste of manpower, management trouble, is also often difficult to control because of the interpolation time, and causes work to slip.
In agricultural production, the automatic aerator that existing aquaculture uses, energy consumption is high, noise is large, oxygenation inefficiency, cannot realize energy-efficient requirement, the new engine that a kind of energy consumption is low, noise is little, oxygenation is many, is current urgent need.Universal along with soilless culture and drip irrigation technique, a large amount of agricultural chemicals, nutrient solution will be had to need to flow into land for growing field crops with irrigation system, and the configuration of existing corollary equipment is luxurious, power consumption poor efficiency, complicated and rate of fault is high, and Reliability And Maintainability is also undesirable.
Summary of the invention
In view of the above problems, the invention provides the self-priming fluid proportional adding set of a kind of hydraulic control, wayward for solving existing forming predetermined liquids ratio, and the problem that can not add at regular time and quantity.
Technological scheme of the present invention is: the self-priming fluid proportional adding set of a kind of hydraulic control, comprise a body, described body is provided with the sprue imported by pressurized fluid, described sprue runs through described body, along described fluid flow direction, in described sprue, at least one place has cross section and becomes suddenly mutation structure that is large or that diminish, and in described mutation structure place, radial direction is linked with the secondary flow road flowed into for another normal pressure fluid in described sprue.
Further, described secondary flow road and described sprue are vertical in abrupt change of cross-section position arranges or is obliquely installed and is positioned at sprue abrupt change of cross-section place.
Further, the radial direction along described sprue is connected with a valve body, described valve body offers the valve opening with described secondary flow road UNICOM, is inserted with the spool that can control described secondary flow road break-make in described valve opening.
Further, described valve opening is shoulder hole, and it can be also cone-shaped by the end of described auxiliary flow passage interception that described spool inserts in described secondary flow road, and the end face of the relatively described valve opening of described spool and the ladder surface of described valve opening have a fixed interval (FI).
Further, described valve body is also provided with one end UNICOM in the drainage channel of described sprue upstream end; Top and the bottom of described spool are arranged with seal ring respectively, seal ring described in two evenly support described valve opening inwall and formed one with the thrust chamber of described drainage channel UNICOM.
Further, the top cover of described valve body is provided with a upper cover, is provided with the elastic component for resetting between described upper cover and described spool, and described elastic component two ends support described upper cover and described spool top respectively.
Further, cover and be also equipped with one for regulating the adjusting element of described spool mobile position on described, described adjusting element is threaded with described upper cover and bottom is resisted against the top of described spool.
Further, described valve body radial direction welding or be threadedly connected to the sidewall of described body, the described valve body end face be connected on described body be arranged with one can with the circular groove of described drainage channel UNICOM.
Further, the end of described body is provided with and can be connected with external pipe and by the joint of described sprue UNICOM.
Further, described joint is the ring mouth being convexly equipped in described body end and can being connected with external pipe.
Run through in main body provided by the invention and be provided with a sprue, pressurized fluid can be imported described body by this sprue, in sprue, at least one place is provided with the mutation structure that cross section becomes suddenly large, and being connected with secondary flow road in this mutation structure radial direction, this secondary flow road guides normal pressure fluid to flow in described sprue.Design like this, when pressurized fluid is through mutation structure, fluid cross-section becomes suddenly large, hydrodynamic pressure bust, forms void effect in mutation structure place, produce a negative pressure, normal pressure fluid is imported in described sprue by secondary flow road by this negative pressure, thus is mixed with normal pressure fluid well-distributing by pressurized fluid, as long as there is fluid to flow in sprue, just absorb the pressurized fluid in secondary flow road by pressure difference, reach the effect of certainty ratio mixing and mixing in real time.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the self-priming fluid proportional adding set of hydraulic control of the present invention.
Description of symbols:
| 1 | Body | 11 | Sprue |
| 2 | Valve body | 12 | Secondary flow road |
| 3 | Upper cover | 13 | Joint |
| 4 | Screw rod | 21 | Drainage channel |
| 5 | Returnning spring | 22 | Thrust chamber |
| 6 | Seal ring | A | Zone of high pressure |
| 7 | Spool | B | Negative pressuren zone |
| C | Mixed zone |
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with concrete accompanying drawing, realization of the present invention is described in detail.
As shown in Figure 1, be a preferred embodiment provided by the invention.The self-priming fluid proportional adding set of a kind of hydraulic control disclosed by the invention, it comprises a body 1, described body 1 is provided with the sprue 11 imported by pressurized fluid, this sprue 11 runs through described body 1 along axis, along described fluid flow direction, in described sprue 11, at least one place has the mutation structure that cross section becomes suddenly large, certainly, the cross section at this place being set to the mutation structure diminished suddenly, is also feasible.In described mutation structure place, radial direction is linked with and flows into secondary flow road 12 in described sprue 11 for another normal pressure fluid.The vertical UNICOM in this secondary flow road 12 is in sprue 11.The cross-section area of described sprue 11 is greater than the cross-section area in described secondary flow road 12.Being appreciated that the sprue 11 and secondary flow road 12 mentioned at this place, is all " through-hole structure ", and the cross section of runner can be circular or ellipticalness or square, and other is all feasible in conjunction with figure.This place says that " pressurized fluid " and " normal pressure fluid " mentioned can be understood as high-pressure liquid and low-pressure fluid, and that is, " pressurized fluid " and " normal pressure fluid " at this place is two kinds of fluids with pressure difference.
For ease of illustrating, " pressurized fluid " in the present embodiment, for having the main fluid higher than standard atmospheric pressure, its pressure is between 1 ~ 0.1Mpa; The interpolation fluid of " normal pressure fluid " namely standard atmospheric pressure.Namely, by this interpolation fluid chemical field in main fluid.In the present embodiment, along the flow direction of sprue 11 inner fluid, this sprue 11 is divided into successively " zone of high pressure A ", " negative pressuren zone B ", " mixed zone C " three districts.
When pressurized fluid enters in body 1 by " the zone of high pressure A " in sprue 11, when through mutation structure place, the cross section of sprue 11 becomes suddenly large, a negative pressure (being in fact also define vacuum) is formed near the section of cross section sudden change, normal pressure fluid in the secondary flow road 12 of radial UNICOM sucks in sprue 11 by the negative-pressure sucking produced as which form " negative pressuren zone B ", together enter C territory, mixed zone after Homogeneous phase mixing, realize the ratio adjustment of two kinds of fluids, add and dilution, reach the requirement of follow-up use.
Run through in main body provided by the invention and be provided with a sprue 11, pressurized fluid can be imported described body 1 by this sprue 11, in sprue 11, at least one place is provided with the mutation structure that cross section becomes suddenly large, and being connected with secondary flow road 12 in this mutation structure radial direction, this secondary flow road 12 bootable normal pressure fluid flows in described sprue 11.Design like this, when pressurized fluid is through mutation structure, fluid cross-section becomes suddenly large, hydrodynamic pressure bust, produces a void effect in mutation structure place, thus produce a negative pressure, by secondary flow road 12, normal pressure fluid will be imported in described sprue 11, thus pressurized fluid will be mixed with normal pressure fluid well-distributing, as long as have fluid to flow in sprue 11, just absorb the pressurized fluid in secondary flow road 12 by pressure difference, reach the effect of certainty ratio mixing and mixing in real time.
Understandably, during actual use, also described secondary flow road 12 can be obliquely installed with described sprue 11.Particularly, this secondary flow road 12 is obliquely installed along the flow direction of fluid.Such setting, the normal pressure fluid be more conducive in secondary flow road 12 enters in sprue 11, and then mixes quickly and evenly with the main fluid in sprue 11.
Further, shown in Figure 1, the radial direction along described sprue 11 is connected with a valve body 2, described valve body 2 offers the valve opening with described secondary flow road 12 UNICOM, is provided with the spool 7 that can control described secondary flow road 12 break-make in described valve opening.By arranging this valve body 2, the flow of secondary flow road 12 inner fluid just can be controlled, thus the mixed proportion of adjusting belt hydraulic fluid and normal pressure fluid.During concrete enforcement, an inductor can be set at the zone of high pressure A of sprue 11, once there be fluid to pass through, then open spool 7, just this normal pressure fluid can be mixed with pressurized fluid, ensure that the ratio of the fluid-mixing flowed out by this body 1 is completely the same, the certainty ratio realizing two kinds of fluids mixes automatically.Preferably, described valve opening is shoulder hole, and it is cone-shaped that described spool 7 inserts the end also described secondary flow road 12 can dammed in described secondary flow road 12, like this, reduces the resistance of spool 7 convection cell, is beneficial to spool 7 and opens or close secondary flow road 12.
Shown in Figure 1 again, in order to make this hydraulic control self-priming fluid proportional adding set compact structure, on described valve body 2, also offer a drainage channel 21, this drainage channel 21 UNICOM, in described sprue 11 upstream end, is namely connected to " zone of high pressure A ".In order to make towards forming a Seal cage between the plunger face of shoulder hole and valve opening on spool 7, namely thrust chamber 22, be arranged with seal ring 6 respectively in the top of described spool 7 and bottom, described in two, the inwall of described valve opening evenly supported by seal ring 6.So, this thrust chamber 22 body is connected with " the zone of high pressure A " of sprue 11 by drainage channel 21.Like this, when pressurized fluid enters the zone of high pressure A in the self-priming fluid proportional adding set of hydraulic control, according to Pascal's " isobaric transmission " principle, part pressurized fluid enters by drainage channel 21 plunger face that described spool 7 is supported in thrust chamber 22, promote spool 7 to move up, open spool 7, by open-minded for secondary flow road 12; Another part pressurized fluid enters " negative pressuren zone B " and produces void effect, will be arranged at the normal pressure fluid negative suction district B of one end, secondary flow road 12, and together flow into " mixed zone C " Homogeneous phase mixing.So, the Homogeneous phase mixing of two kinds of fluids also need can not be realized by external force, structural design is simple and ingenious, spool 7 is opened highly sensitive, real-time control can be realized, as long as namely pressurized fluid flows through this sprue 11, just have normal pressure fluid to flow into from secondary flow road 12 and mix with it, automatic interpolation can be realized completely, add without the need to human attendance.
Further, the top cover of described valve body 2 is provided with a upper cover 3, is provided with the elastic component for resetting between described upper cover 3 and described spool 7, and described elastic component two ends support described upper cover 3 and described spool 7 top respectively.Preferably, the elastic component at this place is Returnning spring 5, and when the impact force that fluid plunger face received in sprue 11 brings instantaneously, this Returnning spring 5 absorption pressure, plays buffer function, improve the reliability of use.When pressurized fluid decompression, when namely pressurized fluid stops flowing into this sprue 11, the plunger face of spool 7 loses pressure support ventilation, at the fault offset that Returnning spring 5 is saved, act on spool 7 to make it to move down, close secondary flow road 12, make spool 7 be in normally off, realize automatically stopping feed.
Further, described upper cover 3 is also equipped with one for regulating the adjusting element of described spool 7 mobile position, described adjusting element is threaded with described upper cover 3 and bottom is resisted against the top of described spool 7.Preferably, this adjusting element is a screw rod 4.Regulated the aperture of this spool 7 by rotary screw 4, thus control the flow of normal pressure fluid, and then control the mixed proportion of normal pressure fluid and high-pressure liquid, thus realize ratio adjustment, the interpolation of two kinds of fluids and dilute.This device is pure mechanical device, and structure is simple, and reliability is strong, without the need to electric energy, can realize automatically, immediately also proportionally adding one other fluid in a kind of fluid.
In order to make valve body 2 firmly be connected on body 1, valve body 2 radial direction can be welded in the sidewall of body 1.Certainly, also valve body 2 radial direction can be threadedly connected to the sidewall of body 1, so be convenient for changing, be easy to safeguard.Described valve body 2 end face be connected on described body 1 be arranged with one can with the circular groove of described drainage channel 21 UNICOM, so, be easy to fluid to be entered in described valve body 2 by drainage channel 21, be convenient to promote this spool 7 and move up, be convenient to install location.
For improving the reliability that this device is opened further, relatively described for described spool 7 end face of valve opening and the ladder surface of described valve opening are arranged a fixed interval (FI).When activated, fluid directly enters this gap by drainage channel 21, directly promotes this spool 7 and moves up, avoid spool 7 stuck, ensure that this spool 7 moves smooth and easy.
Further, the end of described body 1 is provided with and can be connected with external pipe and by the joint 13 of described sprue 11 UNICOM.Preferably, described joint 13 is for being convexly equipped in described body 1 end and the ring mouth that can be connected with external pipe.So, the connection realizing this device is easy to.Easily expect, also this joint 13 can be arranged to worm structure or plug in structure, thus to be connected with the pipeline of outside be also feasible.
For the ease of understanding, below the working principle of self-priming for hydraulic control fluid proportional adding set is being described below: when a kind of pressurized fluid (usual pressure is between 1 ~ 0.1Mpa) enters the body 1 mesohigh district A of this device, according to Pascal's " isobaric transmission " principle, pressure is delivered in the plunger face of spool 7, promote spool 7 to move up, open the secondary flow road 12 that spool 7 is closed, make container and body 1 negative pressuren zone B UNICOM that normal pressure fluid is housed, normal pressure fluid is inhaled into negative pressuren zone B and flows into mixed zone C with normal pressure fluid chemical field.When pressurized fluid decompression, the plunger face of spool 7 loses pressure support ventilation, resets at the effect lower valve core 7 of Returnning spring 5, closes secondary flow road 12, realizes automatically stopping feed.Period, set up the aperture of spool 7 by adjusting screw rod 4, control the ratio of normal pressure fluid and the high-pressure liquid added.
In addition, this hydraulic control self-priming fluid proportional adding set can be applicable to multiple occasion, is exemplified below: quantitatively cannot add sustained-release block on demand in existing slowly-releasing bottle, and the frequency no matter used how, and its slow release speed all changes not quite.When frequency of usage is high time, slow release speed is excessively slow, does not have Disinfection Effect; Time frequency of usage is low, sustained concentration is excessive, causes waste.This device opens when water filling at the float valve of water toilet, just added by thimerosal, accurately and timely, and be by water injection rate number proportionally to add.
In washing machine: the pipeline this device being connected on washing machine rinsing electromagnetic valve.When water-filling opened by solenoid valve, this device has just been devoted oneself to work automatically.People only need preprepared thimerosal or softener to be connected to normal pressure mouth.Domestic washing machine, once access can need not be changed for a long time, accomplishes that accurate quantitative analysis adds, until the material in container exhausts.
For in flush toilet: this device is directly connected on float valve water outlet, thimerosal interface is connected on normal pressure fluid interface.Each water tank water-filling, thimerosal just can inject water tank according to the ratio specified in advance.Automatically, immediately add.Once access, can half a year be used, even 1 year.The antisepsis algicide that the program is equally applicable to cooling tower adds.Save time, laborsaving, save consumptive material.
For in field irrigation: at pump discharge place, connect the self-priming fluid proportional adding set of this hydraulic control, can multinomial nutrient solution and medicine be executed to crops with current, just automatically, immediately also proportionally can add, a large amount of manpower can be saved, increase work efficiency.
For in aquaculture aeration device: old-fashioned aerator utilizes to fetch water method colored and realize toward oxygenation in water, and efficiency is very low.Use this device and water pump selection, can directly air is mixed in the water of exit of pump, can automatically, immediately also proportionally add, energy-efficient.Using this pump as culturing pool circulating water pump and charging pump.At the liquid of the normal pressure entrance sterilization of this device, the reasonable quantitative dosing of culturing pool can be realized.Realize a tractor serves several purposes of water pump, save old-fashioned aerator.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the self-priming fluid proportional adding set of hydraulic control, comprise a body, described body is provided with the sprue imported by pressurized fluid, described sprue runs through described body, it is characterized in that: along described fluid flow direction, in described sprue, at least one place has cross section and becomes suddenly mutation structure that is large or that diminish, and in described mutation structure place, radial direction is linked with the secondary flow road flowed into for another normal pressure fluid in described sprue.
2. the self-priming fluid proportional adding set of hydraulic control as claimed in claim 1, is characterized in that: described secondary flow road is vertical with described sprue to be arranged or be obliquely installed and is positioned at sprue abrupt change of cross-section place.
3. the self-priming fluid proportional adding set of hydraulic control as claimed in claim 2, it is characterized in that: the radial direction along described sprue is connected with a valve body, described valve body offers the valve opening with described secondary flow road UNICOM, in described valve opening, be inserted with the spool that can control described secondary flow road break-make.
4. the self-priming fluid proportional adding set of hydraulic control as claimed in claim 3, it is characterized in that: described valve opening is shoulder hole, it can be also cone-shaped by the end of described auxiliary flow passage interception that described spool inserts in described secondary flow road, and the end face of the relatively described valve opening of described spool and the ladder surface of described valve opening have a fixed interval (FI).
5. the self-priming fluid proportional adding set of hydraulic control as claimed in claim 4, is characterized in that: described valve body is also provided with one end UNICOM in the drainage channel of described sprue upstream end; Top and the bottom of described spool are arranged with seal ring respectively, seal ring described in two evenly support described valve opening inwall and formed one with the thrust chamber of described drainage channel UNICOM.
6. the self-priming fluid proportional adding set of the hydraulic control according to any one of claim 3-5, it is characterized in that: the top cover of described valve body is provided with a upper cover, be provided with the elastic component for resetting between described upper cover and described spool, described elastic component two ends support described upper cover and described spool top respectively.
7. the self-priming fluid proportional adding set of hydraulic control as claimed in claim 6, it is characterized in that: cover on described and be also equipped with one for regulating the adjusting element of described spool mobile position, described adjusting element is threaded with described upper cover and bottom is resisted against the top of described spool.
8. the self-priming fluid proportional adding set of hydraulic control as claimed in claim 5, it is characterized in that: described valve body radial direction welding or be threadedly connected to the sidewall of described body, the described valve body end face be connected on described body be arranged with one can with the circular groove of described drainage channel UNICOM.
9. the self-priming fluid proportional adding set of the hydraulic control according to any one of claim 1-5, is characterized in that: the end of described body is provided with and can be connected with external pipe and by the joint of described sprue UNICOM.
10. the self-priming fluid proportional adding set of hydraulic control as claimed in claim 9, is characterized in that: described joint is the ring mouth being convexly equipped in described body end and can being connected with external pipe.
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| CN201510655899.5A CN105299260B (en) | 2015-10-13 | 2015-10-13 | Hydraulic control self-priming fluid proportion adding device |
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| CN201510655899.5A CN105299260B (en) | 2015-10-13 | 2015-10-13 | Hydraulic control self-priming fluid proportion adding device |
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| CN105299260A true CN105299260A (en) | 2016-02-03 |
| CN105299260B CN105299260B (en) | 2024-06-11 |
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