CN111188816B - Flow distribution method of flow divider based on Venturi effect and flow divider structure - Google Patents
Flow distribution method of flow divider based on Venturi effect and flow divider structure Download PDFInfo
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- CN111188816B CN111188816B CN201911300940.1A CN201911300940A CN111188816B CN 111188816 B CN111188816 B CN 111188816B CN 201911300940 A CN201911300940 A CN 201911300940A CN 111188816 B CN111188816 B CN 111188816B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/16—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe the branch pipe comprising fluid cut-off means
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Abstract
The invention provides a flow distribution method for a flow dividing valve, when a switch valve is closed, after fluid of a main pipe passes through a liquid inlet section of a valve body, most of the fluid enters a liquid outlet section of the valve body from a tapered section of the valve body, and a small amount of fluid except most of the fluid enters the liquid outlet section from a circulating branch pipe; when the switch valve is opened, after the fluid of the main pipe passes through the liquid inlet section, most of the fluid enters the liquid outlet section from the reducing section, other fluids except most of the fluid enter the circulating branch pipe, part of the fluid in the liquid outlet section also enters the circulating branch pipe, part of the fluid in the liquid outlet section and other fluids are converged and then enter the branch pipe of the pipe network, and meanwhile, the rest of the fluid except part of the fluid in most of the fluid enters the main pipe of the pipe network from the liquid outlet section of the valve body. The invention also discloses a flow dividing valve structure based on the flow distribution method. The valve body can ensure that the water of the circulating branch pipe is always in a circulating state, and the water quality and the water temperature of the branch pipe of the pipe network are ensured.
Description
Technical Field
The invention relates to the field of shunt valves, in particular to a flow distribution method of a shunt valve based on a Venturi effect and a shunt valve structure.
Background
The flow distribution valve is an intuitive and simple flow control device, and can be used in a pipe network to guide fluid to a plurality of flow paths.
For example, patent No. 201420445719.1's utility model patent discloses a flow distribution valve, including 2 above shunt valve mechanisms that set up side by side, every shunt valve mechanism is connected with oil feed P mouth, and shunt valve mechanism includes the first damping hole and the compensating valve that connect gradually from oil feed P mouth, and the load delivery outlet of compensating valve connects in parallel has shuttle valve and the second damping hole that connects gradually, and the shuttle valve is connected to the control port and the test interface of compensating valve, and the second damping hole is connected to the load delivery outlet of compensating valve.
Although the patent can realize flow distribution, the structure is complex. Accordingly, there is a need for a diverter valve structure that is simple and inexpensive to manufacture.
Disclosure of Invention
The invention provides a flow distribution method of a flow divider based on a Venturi effect and a flow divider structure.
The technical scheme for realizing the purpose of the invention is as follows:
a flow distribution method of a flow divider based on a Venturi effect comprises the following steps:
the flow divider is arranged on a main pipe of the pipe network, the liquid inlets of branch pipes of the pipe network are communicated with a circulating branch pipe connected with the flow divider, and the branch pipes of the pipe network are provided with switch valves;
when the switch valve is closed, after the fluid of the main pipe passes through the liquid inlet section of the valve body, most of the fluid enters the liquid outlet section of the valve body from the tapered section of the valve body, and a small amount of fluid except most of the fluid enters the liquid outlet section of the valve body from the circulating branch pipe, so that the small amount of fluid and most of the fluid are collected and then enter the main pipe of the pipe network through the liquid outlet section;
when the switch valve is opened, after the fluid of the main pipe passes through the liquid inlet section of the valve body, most of the fluid enters the liquid outlet section of the valve body from the tapered section of the valve body, other fluids except most of the fluid enter the circulating branch pipe, part of the fluid in the liquid outlet section also enters the circulating branch pipe, part of the fluid in the liquid outlet section and the other fluids are converged and then enter the branch pipe of the pipe network, and meanwhile, the rest of the fluid except part of the fluid in most of the fluid enters the main pipe of the pipe network from the liquid outlet section of the valve body.
As a further development of the invention, the tapering section of the valve body is arranged in parallel with the circulation branch.
As a further improvement of the present invention, when the on-off valve is closed, the majority of the fluid is 95 ± 2% of the dry pipe fluid, the minority of the fluid is 5 ± 2% of the dry pipe fluid, and the majority of the fluid and the minority of the fluid are 100% of the dry pipe fluid;
when the switch valve is opened, the majority of fluid is 95% -80% of dry pipe fluid, the other fluid is 5% -20% of dry pipe fluid, the part of fluid is 5% -20% of dry pipe fluid, the rest fluid is 90% -60% of dry pipe fluid, and the fluid in the branch pipe of the pipe network is 10% -40% of dry pipe fluid.
A flow divider structure based on Venturi effect comprises a valve body, wherein the valve body consists of a liquid inlet section, a reducing section and a liquid outlet section, and the pipe diameter of the reducing section is gradually reduced from the liquid inlet section to the liquid outlet section;
the liquid outlet section consists of a speed change section and a stable section, the speed change section is an area where the flow rate of the fluid changes in the liquid outlet section, the flow rate of the fluid is increased when the fluid passes through the reducing section, and the flow rate of the fluid with the increased flow rate is firstly reduced and then tends to be stable when the fluid passes through the liquid outlet section;
the peripheral wall of the liquid inlet section is provided with a first shunt port, the peripheral wall of the speed change section is provided with a second shunt port, the first shunt port and the second shunt port are communicated through a circulation branch pipe, and a pressure difference is formed between the liquid inlet section and the speed change section, so that a small amount of fluid in the liquid inlet section enters the liquid outlet section through the circulation branch pipe;
the circulating branch pipe is also communicated with a branch pipe of the pipe network, and the branch pipe of the pipe network is provided with a switch valve.
As a further improvement of the invention, the first flow dividing port is arranged close to the end part of the liquid inlet section, and the end part is the end part of the liquid inlet section connected with the reducing section;
the first flow dividing port and the second flow dividing port are equal in diameter, and the diameters of the first flow dividing port and the second flow dividing port are smaller than the inner diameter of the liquid inlet section and the inner diameter of the liquid outlet section of the valve body. The first flow splitting port is disposed proximate to the tapered section.
As a further improvement of the invention, when the switch valve is closed, a small amount of fluid in the liquid inlet section enters the liquid outlet section through the circulating branch pipe;
when the switch valve is opened, the partial fluid of the liquid inlet section and the partial fluid of the liquid outlet section are converged and then flow to the branch pipe.
As a further improvement of the present invention, the tapered section comprises a first diameter section, a tapered section and a second diameter section, wherein a liquid inlet of the tapered section is in direct contact with a liquid outlet of the first diameter section, and a liquid outlet of the tapered section is in direct contact with a liquid inlet of the second diameter section;
the liquid inlet section is connected with the first diameter section in sequence, and the second diameter section is connected with the liquid outlet section;
the fluid flows through the first diameter section, the conical section and the second diameter section in sequence and then enters the liquid outlet section;
the second diameter section has an inner diameter less than the inner diameter of the first diameter section.
Compared with the prior art, the invention has the beneficial effects that:
1. the valve body of the invention can ensure that the water of the circulating branch pipe always has circulating flow, thereby ensuring the branch pipe water quality and the water temperature of the pipe network.
2. The flow divider of the invention can be applied to hot water systems and direct drinking water pipe network systems, and ensures that water in the circulating branch pipe is not retained.
3. The flow divider is arranged on the interface of each branch ring pipe connected with the large ring pipe of the circulating pipeline, can ensure the circulation of water in the branch ring pipe, can replace a special return water main pipe, can also meet the high-standard water demand, and simultaneously has simple and flexible design.
4. The valve body is arranged on a main pipe of a pipe network, fluid in the main pipe sequentially passes through the liquid inlet section, the reducing section and the liquid outlet section, the flow velocity of the fluid is increased when the fluid passes through the reducing section, the flow velocity of the fluid with the increased flow velocity is gradually reduced and then tends to be stable when the fluid passes through the liquid outlet section after being sprayed out from the tail end of the reducing section, and the area where the flow velocity of the fluid is changed at the liquid outlet section is the speed change section.
Drawings
FIG. 1 is a schematic diagram of flow distribution when the on-off valve is closed;
FIG. 2 is a schematic view of the flow distribution when the on-off valve is open;
FIG. 3 is a schematic structural view of the diverter valve;
FIG. 4 is a schematic structural view of a tapered section;
FIG. 5 is a schematic view showing a state of water flow of the flow valve when the on-off valve is closed;
fig. 6 is a schematic view showing a state of water flow of the flow valve when the on-off valve is opened.
In the figure, 100, a liquid inlet section; 200. a tapered section; 210. a first diameter section; 220. a tapered section; 230. a second diameter section; 300. a liquid outlet section; 400. a first diversion port; 500. a second diversion port; 600. an on-off valve; 700. a branch pipe; 800. a circulation branch pipe; 900. and (4) drying the tube.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
The first implementation mode comprises the following steps:
the embodiment discloses a flow distribution method of a flow divider based on a Venturi effect, wherein the flow divider is arranged on a main pipe of a pipe network, a liquid inlet of a branch pipe of the pipe network is communicated with a circulating branch pipe connected with the flow divider, and a switch valve is arranged on the branch pipe of the pipe network; as shown in fig. 1, when the switch valve is closed, after the fluid in the main pipe passes through the liquid inlet section of the valve body, most of the fluid enters the liquid outlet section of the valve body from the tapered section of the valve body, and a small amount of fluid except most of the fluid enters the liquid outlet section of the valve body from the circulation branch pipe, so that the small amount of fluid and most of the fluid are collected and then enter the main pipe of the pipe network through the liquid outlet section; as shown in fig. 2, when the on-off valve is opened, after the fluid in the main pipe passes through the fluid inlet section of the valve body, most of the fluid enters the fluid outlet section of the valve body from the tapered section of the valve body, the other fluids except most of the fluid enter the circulation branch pipes, the part of the fluid in the fluid outlet section also enters the circulation branch pipes, the part of the fluid in the fluid outlet section and the other fluids are collected and then enter the branch pipes of the pipe network, and meanwhile, the rest of the fluid except part of the fluid in the most of the fluid enters the main pipe of the pipe network from the fluid outlet section of the valve body.
The reducing section of the valve body is arranged in parallel with the circulating branch pipe. As shown in fig. 1, when the on-off valve is closed, the majority of the fluid is 95 ± 2% of the dry pipe fluid, the minority of the fluid is 5 ± 2% of the dry pipe fluid, and the majority of the fluid and the minority of the fluid are 100% of the dry pipe fluid. As shown in fig. 2, when the on-off valve is opened, the majority of the fluid is 95% to 80% of the dry pipe fluid, the other fluids are 5% to 20% of the dry pipe fluid, the part of the fluid is 5% to 20% of the dry pipe fluid, the rest of the fluid is 90% to 60% of the dry pipe fluid, and the fluid in the branch pipe of the pipe network is 10% to 40% of the dry pipe fluid.
Because the valve body of the embodiment can ensure that the water of the circulating branch pipe is always in a circulating state, the branch pipe water quality and the water temperature of a pipe network are ensured. The flow divider of the embodiment can be applied to a hot water system and a direct drinking water pipe network system, and ensures that water in the circulating branch pipe is not retained.
The second embodiment:
the venturi uses the venturi effect, which manifests itself in the phenomenon of an increase in the flow velocity of the fluid when the restricted flow passes through a reduced flow section, the flow velocity of the fluid being inversely proportional to the flow section. An increase in flow rate is accompanied by a decrease in fluid pressure, as is known from bernoulli's law (an increase in flow velocity and a decrease in static pressure of a fluid, and vice versa), which refers to the effect that a low pressure is generated in the vicinity of a fluid flowing at a high velocity, thereby generating an adsorption effect.
The flow divider structure of the present embodiment employs a venturi effect, and connects the circulation branch pipes 800 before and after the diameter-reduced pipe section by using a pressure difference, so that the circulation branch pipes 800 generate a circulation flow rate, thereby realizing the distribution of fluid.
On the basis of the first disclosed scheme of the embodiment, as shown in fig. 3, the diverter valve structure of the embodiment comprises a valve body, wherein the valve body consists of a liquid inlet section 100, a reducing section 200 and a liquid outlet section 300, and the pipe diameter of the reducing section 200 is gradually reduced from the liquid inlet section 100 to the liquid outlet section 300; the liquid outlet section 300 is composed of a speed change section and a stable section, the speed change section is an area where the flow rate of the fluid changes in the liquid outlet section 300, the flow rate of the fluid is increased when the fluid passes through the reducing section 200, and the flow rate of the fluid with the increased flow rate is firstly reduced and then tends to be stable when the fluid passes through the liquid outlet section 300; the peripheral wall of the liquid inlet section 100 is provided with a first shunt port 400, the peripheral wall of the speed change section is provided with a second shunt port 500, the first shunt port 400 and the second shunt port 500 are communicated through a circulation branch pipe 800, and a pressure difference exists between the liquid inlet section 100 and the speed change section, so that a small amount of fluid in the liquid inlet section 100 enters the liquid outlet section 300 through the circulation branch pipe 800.
The valve body of this embodiment is installed on the trunk line of pipe network, fluid in the pipe network trunk line passes through inlet leg 100 in proper order, convergent section 200 and play liquid section 300, the velocity of flow increases when fluid passes through convergent section 200, the fluid of increased velocity of flow is from the terminal blowout back of convergent section 200, the velocity of flow diminishes gradually again and tends to stably when fluid passes through play liquid section 300, the region that the fluid changes at play liquid section 300 velocity of flow is called the variable speed section, this embodiment connects into circulation branch pipe 800 at variable speed section and inlet leg 100, the interior real-time flow of circulation branch pipe 800 has circulation flow, thereby avoid the interior fluid of circulation branch pipe 800 to be detained.
The third embodiment is as follows:
on the basis of the first disclosed scheme of the embodiment, the embodiment provides a flow dividing valve structure, as shown in fig. 3, comprising a valve body, wherein the valve body is composed of a liquid inlet section 100, a reducing section 200 and a liquid outlet section 300, and the pipe diameter of the reducing section 200 is gradually reduced from the liquid inlet section 100 to the liquid outlet section 300; the liquid outlet section 300 is composed of a speed change section and a stable section, the speed change section is an area where the flow rate of the fluid changes in the liquid outlet section 300, the flow rate of the fluid is increased when the fluid passes through the reducing section 200, and the flow rate of the fluid with the increased flow rate is firstly reduced and then tends to be stable when the fluid passes through the liquid outlet section 300; the peripheral wall of the liquid inlet section 100 is provided with a first shunt port 400, the peripheral wall of the speed change section is provided with a second shunt port 500, the first shunt port 400 and the second shunt port 500 are communicated through a circulation branch pipe 800, and a pressure difference exists between the liquid inlet section 100 and the speed change section, so that a small amount of fluid in the liquid inlet section 100 enters the liquid outlet section 300 through the circulation branch pipe 800. As shown in fig. 3, the first split opening 400 is disposed near the end of the liquid inlet section 100, which is the end of the liquid inlet section 100 connected to the tapering section 200; the first flow dividing port 400 and the second flow dividing port 500 are equal in diameter, and the diameters of the first flow dividing port 400 and the second flow dividing port 500 are smaller than the inner diameter of the liquid inlet section 100 and the inner diameter of the liquid outlet section 300 of the valve body.
As shown in fig. 5 and 6, the circulation branch pipe 800 is also communicated with the branch pipe 700, and the branch pipe 700 is provided with the on-off valve 600. As shown in fig. 5, when the on-off valve 600 is closed, a small amount of fluid in the inlet section 100 enters the outlet section 300 through the circulation branch pipe 800; as shown in fig. 6, when the on-off valve 600 is opened, a part of the fluid in the inlet section 100 and a part of the fluid in the outlet section 300 converge and flow to the branch pipe 700. Specifically, the flow rate of the circulation branch pipe 800 when the on-off valve 600 is opened is greater than the flow rate of the circulation branch pipe 800 when the on-off valve 600 is closed.
The fourth embodiment:
on the basis of the first disclosed scheme of the embodiment, the embodiment provides a flow dividing valve structure, as shown in fig. 3, comprising a valve body, wherein the valve body is composed of a liquid inlet section 100, a reducing section 200 and a liquid outlet section 300, and the pipe diameter of the reducing section 200 is gradually reduced from the liquid inlet section 100 to the liquid outlet section 300; the liquid outlet section 300 is composed of a speed change section and a stable section, the speed change section is an area where the flow rate of the fluid changes in the liquid outlet section 300, the flow rate of the fluid is increased when the fluid passes through the reducing section 200, and the flow rate of the fluid with the increased flow rate is firstly reduced and then tends to be stable when the fluid passes through the liquid outlet section 300; the peripheral wall of the liquid inlet section 100 is provided with a first shunt port 400, the peripheral wall of the speed change section is provided with a second shunt port 500, the first shunt port 400 and the second shunt port 500 are communicated through a circulation branch pipe 800, and a pressure difference exists between the liquid inlet section 100 and the speed change section, so that a small amount of fluid in the liquid inlet section 100 enters the liquid outlet section 300 through the circulation branch pipe 800. As shown in fig. 3, the first split opening 400 is disposed near the end of the liquid inlet section 100, which is the end of the liquid inlet section 100 connected to the tapering section 200; the first flow dividing port 400 and the second flow dividing port 500 are equal in diameter, and the diameters of the first flow dividing port 400 and the second flow dividing port 500 are smaller than the inner diameter of the liquid inlet section 100 and the inner diameter of the liquid outlet section 300 of the valve body.
As shown in fig. 4, the tapered section 200 is composed of a first diameter section 210, a tapered section 220 and a second diameter section 230, wherein the liquid inlet of the tapered section 220 is connected with the liquid outlet of the first diameter section 210, and the liquid outlet of the tapered section 220 is connected with the liquid inlet of the second diameter section 230; the liquid inlet section 100 is connected with the first diameter section 210, and the second diameter section 230 is connected with the liquid outlet section 300; the fluid flows through the first diameter section 210, the conical section 220 and the second diameter section 230 in sequence and then enters the liquid outlet section 300; the second diameter section 230 has an inner diameter that is less than the inner diameter of the first diameter section 210.
As shown in fig. 4, the inner diameter of the inlet section 100 is larger than that of the first diameter section 210, and the inner diameter of the outlet section 300 is much larger than that of the second diameter section 230. The second diameter section 230 extends into the liquid outlet section 300, and the tapered section 200 is connected with the liquid outlet section 300. As shown in fig. 4, a portion of the first diameter section 210, the tapered section 220, and the second diameter section 230 each extend into the tapping section 300, and the tapping section 300 is connected to the first diameter section 210.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A shunt valve structure based on a Venturi effect is characterized by comprising a valve body, wherein the valve body consists of a liquid inlet section (100), a reducing section (200) and a liquid outlet section (300), and the pipe diameter of the reducing section (200) is gradually reduced from the liquid inlet section (100) to the liquid outlet section (300);
the liquid outlet section (300) consists of a speed change section and a stable section, the speed change section is an area where the flow speed of the fluid changes in the liquid outlet section (300), the flow speed of the fluid is increased when the fluid passes through the reducing section (200), and the flow speed of the fluid with the increased flow speed is firstly reduced and then tends to be stable when the fluid passes through the liquid outlet section (300);
a first shunt port (400) is formed in the peripheral wall of the liquid inlet section (100), a second shunt port (500) is formed in the peripheral wall of the speed change section, the first shunt port (400) and the second shunt port (500) are communicated through a circulation branch pipe (800), a pressure difference exists between the liquid inlet section (100) and the speed change section, and a small amount of fluid in the liquid inlet section (100) enters the liquid outlet section (300) through the circulation branch pipe (800) due to the pressure difference;
the circulation branch pipe (800) is also communicated with a branch pipe (700) of the pipe network, and a switch valve (600) is arranged on the branch pipe (700) of the pipe network.
2. The diverter valve configuration according to claim 1, wherein the first and second diverter ports (400, 500) are of equal diameter and the first and second diverter ports (400, 500) each have a diameter less than the inlet (100) and outlet (300) sections of the valve body.
3. The flow divider valve configuration according to claim 1, characterized in that when the switch valve (600) is closed, a small amount of fluid of the inlet section (100) enters the outlet section (300) through the circulation branch pipe (800);
when the switch valve (600) is opened, part of fluid in the liquid inlet section (100) and part of fluid in the liquid outlet section (300) are converged and then flow to the branch pipe (700).
4. The diverter valve configuration according to claim 1, wherein the tapered section (200) is comprised of a first diameter section (210), a tapered section (220), and a second diameter section (230), the liquid inlet of the tapered section (220) being in line with the liquid outlet of the first diameter section (210), the liquid outlet of the tapered section (220) being in line with the liquid inlet of the second diameter section (230);
the liquid inlet section (100) is connected with the first diameter section (210) in a straight-line manner, and the second diameter section (230) is connected with the liquid outlet section (300);
the fluid flows through the first diameter section (210), the conical section (220) and the second diameter section (230) in sequence and then enters the liquid outlet section (300);
the second diameter section (230) has an inner diameter that is less than the inner diameter of the first diameter section (210).
5. A method of distributing flow based on the Venturi effect diverter valve configuration according to any one of claims 1-4, comprising:
the flow divider is arranged on a main pipe (900) of a pipe network, the liquid inlets of branch pipes (700) of the pipe network are communicated with a circulating branch pipe (800) connected with the flow divider, and the branch pipes (700) of the pipe network are provided with switch valves (600);
when the switch valve (600) is closed, after the fluid of the main pipe (900) passes through the liquid inlet section (100) of the valve body, most of the fluid enters the liquid outlet section (300) of the valve body from the tapered section (200) of the valve body, and a small amount of fluid except most of the fluid enters the liquid outlet section (300) of the valve body from the circulating branch pipe (800), so that the small amount of fluid and most of the fluid are collected and then enter the main pipe of the pipe network again through the liquid outlet section (300);
when the switch valve (600) is opened, after the fluid in the main pipe (900) passes through the liquid inlet section (100) of the valve body, most of the fluid enters the liquid outlet section (300) of the valve body from the tapered section (200) of the valve body, other fluids except most of the fluid enter the circulation branch pipe (800), the fluid in the liquid outlet section (300) also enters the circulation branch pipe (800), the fluid in the liquid outlet section (300) and the other fluids are converged and then enter the branch pipe (700) of the pipe network, and meanwhile, the rest of the fluid except part of the fluid in most of the fluid enters the main pipe of the pipe network again from the liquid outlet section (300) of the valve body;
the majority of the fluid is 95 + -2% of the dry pipe (900) fluid, the minority of the fluid is 5 + -2% of the dry pipe (900) fluid, and the majority of the fluid and the minority of the fluid are 100% of the dry pipe (900) fluid;
the majority of the fluid is 95% -80% of the fluid in the dry pipe (900), the other fluid is 5% -20% of the fluid in the dry pipe (900), the part of the fluid is 5% -20% of the fluid in the dry pipe (900), the rest of the fluid is 90% -60% of the fluid in the dry pipe (900), and the fluid in the branch pipe (700) of the pipe network is 10% -40% of the fluid in the dry pipe (900).
6. Flow distribution method according to claim 5, characterised in that the tapered section (200) of the valve body is arranged in parallel with the circulation branch (800).
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| KR102526073B1 (en) * | 2021-05-20 | 2023-04-25 | 홍승훈 | Ventury nozzle apparatus |
| CN115076489A (en) * | 2022-05-24 | 2022-09-20 | 楚天华通医药设备有限公司 | Flow dividing device and water treatment system |
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| CN1460155A (en) * | 2000-08-23 | 2003-12-03 | 奥西边科·谢尔盖·勃利索维奇 | Device for effecting flow of liquid medium |
| US9931601B2 (en) * | 2014-07-22 | 2018-04-03 | Hayward Industries, Inc. | Venturi bypass system and associated methods |
| CN204025207U (en) * | 2014-08-07 | 2014-12-17 | 深圳市桑特液压技术有限公司 | Flow divider valve |
| CN107605876A (en) * | 2017-10-19 | 2018-01-19 | 山东核电设备制造有限公司 | A kind of Venturi tube using cavitation erosion control flow |
| CN208487416U (en) * | 2018-03-31 | 2019-02-12 | 大连中智德精密科技有限公司 | High pressure water supercharging device |
| CN209204251U (en) * | 2018-07-03 | 2019-08-06 | 武汉科信科学仪器有限公司 | A kind of current divider and the water for dialysis pair circulatory system using the current divider |
| CN110206914A (en) * | 2019-07-02 | 2019-09-06 | 艾碧匹(上海)流体控制有限公司 | Dynamic circulation valve |
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