CN110454590B - Fluid valve for biomass processing system - Google Patents
Fluid valve for biomass processing system Download PDFInfo
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- CN110454590B CN110454590B CN201910842221.6A CN201910842221A CN110454590B CN 110454590 B CN110454590 B CN 110454590B CN 201910842221 A CN201910842221 A CN 201910842221A CN 110454590 B CN110454590 B CN 110454590B
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- pipe section
- blind pipe
- valve
- threaded rod
- plate
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- 239000012530 fluid Substances 0.000 title claims abstract description 38
- 239000002028 Biomass Substances 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims description 38
- 238000012856 packing Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 239000000428 dust Substances 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 17
- 239000010813 municipal solid waste Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000003440 toxic substance 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
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a fluid valve for a biomass processing system, which comprises a valve body and a valve plate, wherein the valve body comprises a blind pipe section and two outlet pipes; the valve plate is arc-shaped and is arranged in the blind pipe section, and the convex side of the valve plate is attached to the inner surface of the blind pipe section; a sliding plate is fixedly connected to one end of the valve plate, which is close to the sealing end of the blind pipe section, and the sliding plate is used as a sealing plate for cutting off the blind pipe section; the connecting hole penetrates through the concave side and the convex side of the valve plate, and the edge of the connecting hole is connected with the sliding plate; also comprises a driving mechanism. The fluid valve is simple in structure and low in manufacturing cost, and dust can be effectively prevented from being deposited in the valve.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a fluid valve for a biomass processing system.
Background
With the rapid development of urban process of social economy and rapid improvement of living standard of people in China, the garbage and waste generated in the urban production and living process are rapidly increased, the conditions of land occupation and environment pollution of the household garbage are more obvious, and the mass increase of the urban household garbage makes garbage disposal more and more difficult. In addition, a large amount of stalks obtained in agricultural production, a large amount of branches and wood chips obtained in wood production, and the like are increasingly attracting attention from various social circles due to the problems of environmental pollution and the like caused by the fact that heat obtained by direct incineration is used for recycling in one of the conventional modes.
For example, in the conventional garbage treatment process, landfill treatment or incineration treatment is generally selected for garbage without recycling value. The solid waste landfill treatment of the household garbage not only occupies the land, but also has a great threat to the groundwater resource; although the garbage incineration treatment can realize certain energy conversion and reduce the requirement of post treatment on space, when garbage is incinerated, a great amount of fly ash and nitrogen oxides are generated, and toxic substances such as dioxin and the like with great influence on the environment are also generated, so that the burden is brought to the flue gas purification treatment and emission.
Aiming at the problems, biomass treatment equipment such as garbage and the like which is different from incineration and takes gasification and pyrolysis as means appears in the prior art, and by adopting the equipment, organic matters in the waste can be converted into different energy forms such as combustible gas, tar and the like which can be conveniently utilized, so that the economy is better; meanwhile, because the required air coefficient is low, the energy utilization rate is high, the emission of harmful gases such as dioxin is low, and the tail gas treatment investment is low.
However, when the biomass processing equipment or system based on gasification and pyrolysis works, for example, in the initial stage of system start-up and in the unstable stage of system operation, the generated product gas may not reach standards or even be unavailable, so that a three-way valve (or a valve is respectively arranged on different pipelines) is generally arranged on an outlet pipeline of the existing biomass processing system, one valve port is used as an air inlet, the other two valve ports are used as air outlets, and the communication state of the air inlet and a specific air outlet is adjusted through corresponding valve cores, so that the fluid split pipeline conveying is realized by utilizing the output forms of different valve ports according to the quality of the product gas.
In the prior art, corresponding valves can achieve the required purposes by adopting three-way valves, stop valves, gate valves and the like, but the existing valves have high purchase cost and are easy to generate dust deposition during use.
Disclosure of Invention
For the corresponding valves for fluid split pipeline transportation, although three-way valves, stop valves, gate valves and the like can be adopted to achieve the required purposes, the existing valves have high purchase cost and are easy to generate dust deposition during use. The fluid valve is simple in structure and low in manufacturing cost, and dust can be effectively prevented from being deposited in the valve.
In view of the above problems, the fluid valve for a biomass processing system provided by the present invention solves the problems by: the fluid valve for the biomass processing system comprises a valve body and a valve plate arranged in the valve body, wherein the valve body comprises a blind pipe section and two outlet pipes, the inlet ends of the outlet pipes are connected to the side surface of the blind pipe section, and in the circumferential direction of the blind pipe section, the two outlet pipes are connected to the same position in the circumferential direction;
the valve plate is arc-shaped and is arranged in the blind pipe section, and the convex side of the valve plate is attached to the inner surface of the blind pipe section;
a sliding plate is fixedly connected to one end of the valve plate, which is close to the sealing end of the blind pipe section, and the sliding plate is used as a sealing plate for cutting off the blind pipe section;
the connecting hole penetrates through the concave side and the convex side of the valve plate, and the edge of the connecting hole is connected with the sliding plate;
the device also comprises a driving mechanism for driving the assembly formed by the valve plate and the sliding plate to move along the axis direction of the blind pipe section, wherein the outlet pipe close to the sealing end of the blind pipe section is a pipe A, the other outlet pipe is a pipe B, and when the communication hole is in the state of the guide pipe A and the blind pipe section, one end of the valve plate close to the pipe orifice of the blind pipe section is used for sealing the pipe B; when the communication hole is in the state of the conduit B and the blind pipe section, the sliding plate is positioned on one side of the pipe A close to the orifice of the blind pipe section.
In this scheme, the open end of blind pipe section is as the fluid inflow end of this fluid valve, and two outlet pipes are as the different fluid outflow pipes on the this fluid valve, and the outlet pipe of just specifically putting through with the blind pipe section receives the control of valve plate: the valve plate is driven to move through the driving mechanism, and when the communication hole on the valve plate is positioned at a position for communicating the blind pipe section with one outlet pipe, the corresponding outlet pipe can output fluid. Thus, by adopting the scheme, the generated gas can be defined to comprise the product gas reaching the standard and the initial gas not reaching the standard according to the specific working state of the biomass processing system, and the specific pipeline trend of the generated product gas and the initial gas is controlled so as to realize the differential transportation of the generated gas.
In this scheme, when specifically preparing the valve body, adopt three straight tube sections can obtain easily: one end of the straight pipe section is welded to be used as a bottom plate of the blind pipe section sealing end, two pipe holes arranged along the axis of the blind pipe section are formed in the side face of the straight pipe section, and then one straight pipe is welded to be used as the outlet pipe at each corresponding pipe hole position; the valve plate serving as the valve core can be obtained by adopting plate material to drill the communication hole and then bending and forming, can also be obtained by adopting plate material to bend and then drill the communication hole, and can also be obtained by cutting off part of the existing pipeline and then drilling the communication hole. Therefore, in terms of cost, the valve can achieve the fluid split-pipeline conveying effect by adopting one valve, and meanwhile, compared with the existing valve, the valve has lower manufacturing cost and manufacturing difficulty in the manufacturing cost of the valve body and the valve core.
The method comprises the following steps: when the communication hole is in the state of the conduit A and the blind pipe section, one end of the valve plate, which is close to the orifice of the blind pipe section, seals the pipe B; when the communication hole is in the state of the conducting pipe B and the blind pipe section, the sliding plate is positioned on one side of the pipe A close to the orifice of the blind pipe section, so that the communication hole on the valve plate can only realize the conduction of one outlet pipe and the blind pipe section according to different stay positions of the valve plate in the blind pipe section; because the valve plate is also connected with a sliding plate, the valve plate is limited to: the edge of intercommunicating pore meets with the valve plate, like this, if compare and set up the valve plate into the pipeline section, set up the intercommunicating pore that two relative positions are relative with outlet pipe hookup location on the pipeline section, the pipeline section is in the blind pipe section around the scheme of the rotatory mode control concrete outlet pipe of pipeline section and blind pipe section conduction condition, this scheme can effectively avoid this valve to form fluid flow blind area on blind pipe section and outlet pipe when actual use, and causes because the enrichment dust appears the outlet pipe by the totally dead condition in the fluid flow blind area.
In the scheme, the valve plate is of an arc-shaped plate structural design, so that the contact area of the valve plate and the blind pipe section is reduced, and the resistance in the movement process of the valve plate is reduced; it is intended to facilitate the release of thermal stresses on the valve plate.
Preferably, the valve plate is an equal-diameter arc plate, the sliding plate is disc-shaped, the axis of the valve plate is collinear with the axis of the sliding plate, and the protruding side of the valve plate is connected with the side surface of the sliding plate. The valve plate is manufactured locally by cutting off the ready-made pipeline, the outer diameter of the ready-made pipeline is equal to the outer diameter of the sliding plate, namely the curvature radius corresponding to the convex side of the valve plate is equal to the radius of the sliding plate.
The further technical scheme is as follows:
the driving mechanism comprises a threaded rod and a hand wheel, wherein the axis of the threaded rod is collinear with the axis of the blind pipe section, and the threaded rod is in threaded connection with the sealing end of the blind pipe section;
one end of the threaded rod is located on the inner side of the blind pipe section, the other end of the threaded rod is located on the outer side of the blind pipe section, the sliding plate is rotatably connected with one end of the threaded rod, which extends into the blind pipe section, and the hand wheel is fixedly connected with one end of the threaded rod, which is located on the outer side of the blind pipe section. In this scheme, through utilizing the hand wheel to rotate the threaded rod, according to the rotation direction adjustment of threaded rod, the direction of motion of control valve plate in the blind pipe section realizes valve plate and intercommunicating pore position adjustment.
In order to avoid the rotation of the valve plate along with the threaded rod, the valve plate is set as follows: the device also comprises a guide mechanism arranged between the combined body and the blind pipe section, wherein the guide mechanism prevents the combined body from rotating along with the threaded rod through being sheared.
As a specific implementation manner of the guiding mechanism, the following is set: the guide mechanism comprises a guide groove and a guide rib, one of the guide groove and the guide rib is arranged on the combined body, the other guide groove is arranged on the blind pipe section, and the guide rib is embedded into the guide groove. As a person skilled in the art, either of the above may be long along the blind pipe section axis direction in the longitudinal direction.
In order to realize sealing of the sealing end of the blind pipe section, the device is as follows: and the sealing device is used for sealing the matching position of the blind pipe section and the threaded rod.
As an implementation scheme of the sealing device with simple structure, low manufacturing cost and easy maintenance, the sealing device is a packing sealing mechanism comprising a pressing plate and a sealing packing.
As a specific rotatable connection mode of the threaded rod and the sliding plate, the device is as follows: the rotatable connection is a hinged connection: the sliding plate is provided with a hinge hole, the end part of the threaded rod is in clearance fit with the hinge hole, and the threaded rod is also provided with a limiting device for limiting the position of the sliding plate on the axis of the threaded rod. In the scheme, the limiting device can adopt at least two elastic check rings for shafts, and each side of the sliding plate is provided with at least one elastic check ring for shafts; the threaded rod can also be provided with a limiting boss, and then a scheme of realizing the positioning of the sliding plate on the opposite side of the limiting boss by using an elastic retainer ring for a shaft can be adopted. Preferably, a bearing capable of bearing axial force is further arranged between the threaded rod and the sliding plate, so that constraint of the blind pipe section on the sliding plate is achieved by improving the matching precision of the sliding plate and the threaded rod, and stress of the threaded connection position of the blind pipe section and the threaded rod is optimized.
For the assembly of this valve of convenience, set up to: the connection relation between the hand wheel and the threaded rod is a detachable connection relation;
the threaded rod is used for being connected with the hand wheel one end be the polished rod that the external diameter is less than threaded section external diameter on the threaded rod, just the length numerical value of polished rod is greater than the blind pipe section and seals the thickness numerical value of end. By adopting the scheme, after the connection of the threaded rod, the sliding plate and the valve plate is completed outside the blind pipe segment, the threaded rod is inserted into the opening end of the blind pipe segment, and after the threaded rod penetrates through the threaded hole on the sealing end of the blind pipe segment, the hand wheel is connected to the outer side of the blind pipe segment.
In order to reduce the resistance of the valve plate to the open end side of the blind pipe section as much as possible, and avoid clamping dust between the valve plate and the blind pipe section as much as possible, the valve plate is deformed, the capability of sealing the outlet pipe of the valve plate is damaged, and the smoothness of the valve plate is set as follows: the end of the valve plate, which is far away from the sealing end of the blind pipe section, is a pointed end with a sloping surface, and when the concave side of the valve plate faces downwards, the sloping bottom of the sloping surface is positioned on the concave side of the valve plate. The tip is the cutting edge of the front end of the valve plate and is used for enabling dust attached to the movement track of the valve plate on the inner side of the blind pipe segment to move to the inner side of the valve plate as far as possible after being stripped under the action of the cutting edge.
For the convenience of the connection of this valve and corresponding pipeline, set up to: and connecting flanges are arranged at the pipe orifice positions of the blind pipe sections and the outlet ends of the two outlet pipes.
The invention has the following beneficial effects:
in this scheme, when specifically preparing the valve body, adopt three straight tube sections can obtain easily: one end of the straight pipe section is welded to be used as a bottom plate of the blind pipe section sealing end, two pipe holes arranged along the axis of the blind pipe section are formed in the side face of the straight pipe section, and then one straight pipe is welded to be used as the outlet pipe at each corresponding pipe hole position; the valve plate serving as the valve core can be obtained by adopting plate material to drill the communication hole and then bending and forming, can also be obtained by adopting plate material to bend and then drill the communication hole, and can also be obtained by cutting off part of the existing pipeline and then drilling the communication hole. Therefore, in terms of cost, the valve can achieve the fluid split-pipeline conveying effect by adopting one valve, and meanwhile, compared with the existing valve, the valve has lower manufacturing cost and manufacturing difficulty in the manufacturing cost of the valve body and the valve core.
The method comprises the following steps: when the communication hole is in the state of the conduit A and the blind pipe section, one end of the valve plate, which is close to the orifice of the blind pipe section, seals the pipe B; when the communication hole is in the state of the conducting pipe B and the blind pipe section, the sliding plate is positioned on one side of the pipe A close to the orifice of the blind pipe section, so that the communication hole on the valve plate can only realize the conduction of one outlet pipe and the blind pipe section according to different stay positions of the valve plate in the blind pipe section; because the valve plate is also connected with a sliding plate, the valve plate is limited to: the edge of intercommunicating pore meets with the valve plate, like this, if compare and set up the valve plate into the pipeline section, set up the intercommunicating pore that two relative positions are relative with outlet pipe hookup location on the pipeline section, the pipeline section is in the blind pipe section around the scheme of the rotatory mode control concrete outlet pipe of pipeline section and blind pipe section conduction condition, this scheme can effectively avoid this valve to form fluid flow blind area on blind pipe section and outlet pipe when actual use, and causes because the enrichment dust appears the outlet pipe by the totally dead condition in the fluid flow blind area.
Drawings
FIG. 1 is a schematic view of a configuration of one embodiment of a fluid valve for a biomass processing system according to the invention, the schematic view being a cross-sectional view;
FIG. 2 is a schematic view of a partial structure of one embodiment of a fluid valve for a biomass processing system according to the invention, reflecting the shape of each of the valve plates; the connection relation between the valve plates. The marks in the figure are respectively: 1. blind pipe section 2, communication hole 3, outlet pipe 4, valve plate 5, slide, 6, threaded rod 7, sealing device 8, hand wheel 9, slope 10, direction arris.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples:
example 1:
as shown in fig. 1 and 2, a fluid valve for a biomass processing system comprises a valve body and a valve plate 4 installed in the valve body, wherein the valve body comprises a blind pipe section 1 and two outlet pipes 3, the inlet ends of the outlet pipes 3 are connected to the side surfaces of the blind pipe section 1, and in the circumferential direction of the blind pipe section 1, the two outlet pipes 3 are connected to the same position in the circumferential direction;
the valve plate 4 is arc-shaped, the valve plate 4 is arranged in the blind pipe section 1, and the convex side of the valve plate 4 is attached to the inner surface of the blind pipe section 1;
a sliding plate 5 is fixedly connected to one end of the valve plate 4, which is close to the sealing end of the blind pipe section 1, and the sliding plate 5 is used as a sealing plate for cutting off the blind pipe section 1;
the device also comprises a communication hole 2 arranged on the valve plate 4, wherein the communication hole 2 penetrates through the concave side and the convex side of the valve plate 4, and the edge of the communication hole 2 is connected with the sliding plate 5;
the device also comprises a driving mechanism for driving the assembly formed by the valve plate 4 and the sliding plate 5 to move along the axis direction of the blind pipe section 1, wherein the outlet pipe 3 close to the sealing end of the blind pipe section 1 in the two outlet pipes 3 is a pipe A, the other outlet pipe 3 is a pipe B, and when the communication hole 2 is in the state of the conduit A and the blind pipe section 1, one end of the valve plate 4 close to the pipe orifice of the blind pipe section 1 is closed; when the communication hole 2 is in the state of the conduit B and the blind pipe section 1, the slide plate 5 is positioned at one side of the pipe a close to the pipe orifice of the blind pipe section 1.
In this scheme, the open end of blind pipe section 1 is as the fluid inflow end of this fluid valve, and two outlet pipes 3 are as the different fluid outflow pipes on this fluid valve, and the outlet pipe 3 that just specifically communicates with blind pipe section 1 receives the control of valve plate 4: by driving the valve plate 4 to move through the driving mechanism, when the communication hole 2 on the valve plate 4 is positioned at a position for communicating the blind pipe section 1 with one of the outlet pipes 3, the corresponding outlet pipe 3 can output fluid. Thus, by adopting the scheme, the generated gas can be defined to comprise the product gas reaching the standard and the initial gas not reaching the standard according to the specific working state of the biomass processing system, and the specific pipeline trend of the generated product gas and the initial gas is controlled so as to realize the differential transportation of the generated gas.
In this scheme, when specifically preparing the valve body, adopt three straight tube sections can obtain easily: one end of the straight pipe section is welded to be used as a bottom plate of the sealing end of the blind pipe section 1, two pipe holes arranged along the axis of the blind pipe section 1 are formed in the side face of the straight pipe section, and a straight pipe is welded to be used as the outlet pipe 3 at each corresponding pipe hole position; the valve plate 4 as the valve core may be obtained by drilling the communication hole 2 with a plate material and then bending the communication hole 2, or may be obtained by drilling the communication hole 2 after bending the plate material and then cutting out a part of the communication hole 2 on an existing pipeline. Therefore, in terms of cost, the valve can achieve the fluid split-pipeline conveying effect by adopting one valve, and meanwhile, compared with the existing valve, the valve has lower manufacturing cost and manufacturing difficulty in the manufacturing cost of the valve body and the valve core.
The method comprises the following steps: when the communication hole 2 is in the state of the conduit A and the blind pipe section 1, one end of the valve plate 4, which is close to the pipe orifice of the blind pipe section 1, seals the pipe B; when the communication hole 2 is in the state of the conduit B and the blind pipe section 1, the sliding plate 5 is positioned at one side of the pipe A close to the pipe orifice of the blind pipe section 1, so that the communication hole 2 on the valve plate 4 can only realize the communication between one outlet pipe 3 and the blind pipe section 1 according to different stay positions of the valve plate 4 in the blind pipe section 1; since the valve plate 4 is also connected with the sliding plate 5, it is defined that: the edge of the communication hole 2 is connected with the valve plate 4, so, if the communication hole 2 with two opposite positions opposite to the connection position of the outlet pipe 3 is arranged on the pipe section compared with the valve plate 4 which is arranged as the pipe section, the pipe section controls the scheme of the conduction condition of the specific outlet pipe 3 and the blind pipe section 1 in a mode of rotating around the pipe section axis.
Example 2:
the embodiment is further defined on the basis of embodiment 1, as shown in fig. 1 and 2, as an implementation scheme of a driving mechanism with a simple structure, the driving mechanism comprises a threaded rod 6 and a hand wheel 8, the axis of the threaded rod 6 is collinear with the axis of the blind pipe section 1, and the threaded rod 6 is in threaded connection with the sealing end of the blind pipe section 1;
one end of the threaded rod 6 is located at the inner side of the blind pipe section 1, the other end of the threaded rod 6 is located at the outer side of the blind pipe section 1, the sliding plate 5 is rotatably connected with one end of the threaded rod 6 extending into the blind pipe section 1, and the hand wheel 8 is fixedly connected with one end of the threaded rod 6 located at the outer side of the blind pipe section 1. In this scheme, through utilizing hand wheel 8 rotation threaded rod 6, according to the rotation direction adjustment of threaded rod 6, the direction of motion of control valve plate 4 in blind pipe section 1 realizes valve plate 4 and intercommunicating pore 2 position adjustment.
To avoid rotation of the valve plate 4 with the threaded rod 6, it is provided that: the device also comprises a guide mechanism arranged between the combined body and the blind pipe section 1, wherein the guide mechanism prevents the combined body from rotating along with the threaded rod 6 by being sheared.
As a specific implementation manner of the guiding mechanism, the following is set: the guiding mechanism comprises a guiding groove and guiding ribs 10, one of the guiding groove and the guiding ribs 10 is arranged on the combined body, the other guiding groove and the guiding ribs 10 are arranged on the blind pipe section 1, and the guiding ribs 10 are embedded into the guiding groove. As a person skilled in the art, either of the above may be long along the axial direction of the blind section 1 in the longitudinal direction.
In order to realize sealing of the sealing end of the blind pipe section 1, the device is as follows: also included is a sealing means 7 for sealing the mating position of the blind pipe section 1 with the threaded rod 6.
As an implementation scheme of the sealing device 7 with simple structure, low manufacturing cost and easy maintenance, the sealing device 7 is a packing sealing mechanism comprising a pressing plate and a packing.
As a specific rotatable connection of the threaded rod 6 and the slide 5, there are provided: the rotatable connection is a hinged connection: the sliding plate 5 is provided with a hinge hole, the end part of the threaded rod 6 is in clearance fit with the hinge hole, and the threaded rod 6 is also provided with a limiting device for limiting the position of the sliding plate 5 on the axis of the threaded rod 6. In the scheme, the limiting device can adopt at least two elastic check rings for shafts, and each side of the sliding plate 5 is provided with at least one elastic check ring for shafts; the threaded rod 6 can also be provided with a limiting boss, and then a scheme of positioning the sliding plate 5 on the opposite side of the limiting boss by using an elastic retainer ring for a shaft can be adopted. Preferably, a bearing capable of bearing axial force is further arranged between the threaded rod 6 and the sliding plate 5, so that constraint of the blind pipe section 1 on the sliding plate 5 is achieved by improving the matching precision of the sliding plate 5 and the threaded rod 6, and stress of the threaded connection position of the blind pipe section 1 and the threaded rod 6 is optimized.
For the assembly of this valve of convenience, set up to: the connection relation between the hand wheel 8 and the threaded rod 6 is a detachable connection relation;
the threaded rod 6 is used for being connected with the hand wheel 8 one end be the polished rod that the external diameter is less than threaded section external diameter on the threaded rod 6, just the length numerical value of polished rod is greater than blind pipe section 1 and seals the thickness numerical value of end. By adopting the scheme, after the connection of the threaded rod 6, the sliding plate 5 and the valve plate 4 is completed outside the blind pipe section 1, the threaded rod 6 is inserted into the opening end of the blind pipe, and the threaded rod 6 penetrates through the threaded hole on the sealing end of the blind pipe section 1 and then is connected with the hand wheel 8 outside the blind pipe section 1.
In order to reduce the resistance of the valve plate 4 to the movement of the blind pipe section 1 toward the opening end side as much as possible, and to avoid the clamping dust between the valve plate 4 and the blind pipe section 1 as much as possible, the valve plate 4 is deformed, the capability of sealing the outlet pipe 3 is damaged, and the smoothness of the movement of the valve plate 4 is set as follows: the end of the valve plate 4 far away from the sealing end of the blind pipe section 1 is a tip with a slope 9, and when the concave side of the valve plate faces downwards, the slope bottom of the slope 9 is positioned on the concave side of the valve plate 4. The tip is a cutting edge at the front end of the valve plate 4, and is used for enabling dust attached to the movement track of the valve plate 4 at the inner side of the blind pipe section 1 to move to the inner side of the valve plate 4 as far as possible after being stripped under the action of the cutting edge.
For the convenience of the connection of this valve and corresponding pipeline, set up to: and connecting flanges are arranged at the pipe orifice positions of the blind pipe segments 1 and at the outlet ends of the two outlet pipes 3.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and it is not intended that the invention be limited to these descriptions. Other embodiments of the invention, which are apparent to those skilled in the art to which the invention pertains without departing from its technical scope, shall be covered by the protection scope of the invention.
Claims (8)
1. The fluid valve for the biomass processing system comprises a valve body and a valve plate (4) arranged in the valve body, and is characterized in that the valve body comprises a blind pipe section (1) and two outlet pipes (3), wherein the inlet ends of the outlet pipes (3) are connected to the side surfaces of the blind pipe section (1), and in the circumferential direction of the blind pipe section (1), the two outlet pipes (3) are connected to the same position in the circumferential direction;
the valve plate (4) is arc-shaped, the valve plate (4) is arranged in the blind pipe section (1), and the convex side of the valve plate (4) is attached to the inner surface of the blind pipe section (1);
a sliding plate (5) is fixedly connected to one end of the valve plate (4) close to the sealing end of the blind pipe section (1), and the sliding plate (5) is used as a sealing plate for cutting off the blind pipe section (1);
the device also comprises a communication hole (2) arranged on the valve plate (4), wherein the communication hole (2) penetrates through the concave side and the convex side of the valve plate (4), and the edge of the communication hole is connected with the sliding plate;
the device also comprises a driving mechanism for driving the assembly formed by the valve plate (4) and the sliding plate (5) to move along the axial direction of the blind pipe section (1), wherein in the two outlet pipes (3), the outlet pipe (3) close to the sealing end of the blind pipe section (1) is a pipe A, the other outlet pipe (3) is a pipe B, and when the communication hole (2) is in a state of the conduction pipe A and the blind pipe section (1), one end of the valve plate (4) close to the pipe orifice of the blind pipe section (1) is used for sealing the pipe B; when the communication hole (2) is in the state of the conducting pipe B and the blind pipe section (1), the sliding plate (5) is positioned at one side of the pipe A close to the pipe orifice of the blind pipe section (1);
the driving mechanism comprises a threaded rod (6) and a hand wheel (8), the axis of the threaded rod (6) is collinear with the axis of the blind pipe section (1), and the threaded rod (6) is in threaded connection with the sealing end of the blind pipe section (1);
one end of the threaded rod (6) is positioned at the inner side of the blind pipe section (1), the other end of the threaded rod (6) is positioned at the outer side of the blind pipe section (1), the sliding plate (5) is rotatably connected with one end of the threaded rod (6) extending into the blind pipe section (1), and the hand wheel (8) is fixedly connected with one end of the threaded rod (6) positioned at the outer side of the blind pipe section (1);
the device also comprises a sealing device (7) for sealing the matching position of the blind pipe section (1) and the threaded rod (6).
2. A fluid valve for a biomass processing system according to claim 1, further comprising a guiding mechanism arranged between the assembly and the blind pipe section (1), the guiding mechanism preventing the assembly from rotating with the threaded rod (6) by being sheared.
3. The fluid valve for a biomass processing system according to claim 2, wherein said guiding mechanism comprises guiding grooves and guiding ribs (10), one of which is provided on said combination and the other is provided on a blind pipe section, and guiding ribs (10) are embedded in guiding grooves.
4. A fluid valve for a biomass processing system according to claim 1, characterized in that said sealing means (7) is a packing sealing mechanism comprising a pressure plate and a packing.
5. The fluid valve for a biomass processing system according to claim 1, wherein said rotatable connection is a hinged connection: the sliding plate (5) is provided with a hinge hole, the end part of the threaded rod (6) is in clearance fit with the hinge hole, and the threaded rod (6) is also provided with a limiting device for limiting the position of the sliding plate (5) on the axis of the threaded rod (6).
6. The fluid valve for a biomass processing system according to claim 1, wherein the connection of the hand wheel (8) to the threaded rod (6) is a detachable connection;
the threaded rod (6) is used for being connected with the hand wheel (8) and one end is the polished rod that the external diameter is less than the screw thread section external diameter on threaded rod (6), just the length numerical value of polished rod is greater than the thickness numerical value of blind pipe section (1) end of sealing.
7. A fluid valve for a biomass processing system according to any of claims 1 to 6, wherein the end of the valve plate (4) remote from the sealed end of the blind pipe section (1) is a pointed end with a sloping surface (9), the sloping bottom of the sloping surface (9) being located on the concave side of the valve plate (4) when the concave side of the valve plate is facing downwards.
8. A fluid valve for a biomass processing system according to any of claims 1 to 6, wherein the orifice position of the blind pipe section (1) and the outlet ends of the two outlet pipes (3) are each provided with a connecting flange.
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| CN201910842221.6A CN110454590B (en) | 2019-09-06 | 2019-09-06 | Fluid valve for biomass processing system |
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| CN201910842221.6A CN110454590B (en) | 2019-09-06 | 2019-09-06 | Fluid valve for biomass processing system |
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| CN110454590B true CN110454590B (en) | 2024-02-13 |
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| CN113483118B (en) * | 2021-07-03 | 2023-05-09 | 宁津美华工业有限公司 | Big latus rectum three-way valve |
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