CN210088098U - Nonmetal self-supporting differential pressure valve - Google Patents
Nonmetal self-supporting differential pressure valve Download PDFInfo
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- CN210088098U CN210088098U CN201920547371.XU CN201920547371U CN210088098U CN 210088098 U CN210088098 U CN 210088098U CN 201920547371 U CN201920547371 U CN 201920547371U CN 210088098 U CN210088098 U CN 210088098U
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Abstract
A non-metal self-supporting differential pressure valve comprises a differential pressure valve shell and a valve body, wherein a water inlet, a water outlet and a valve body diaphragm positioned between the water inlet and the water outlet are arranged in the differential pressure valve shell, the side wall of the valve body diaphragm comprises a valve body diaphragm water outlet connected with the water outlet, the valve body is positioned in the valve body diaphragm, the lower side of the valve body comprises an elastic body which always applies upward force to the valve body, the valve body comprises an upper valve body and a lower valve body which are arranged up and down and have the same shape, the upper valve body and the lower valve body are spherical, the maximum diameter of the upper valve body and the maximum diameter of the lower valve body are the same as the diameter of the; when the valve body moves up and down in the valve body diaphragm to the position where the maximum diameter of the valve body is not contacted with the valve body diaphragm, water in the water inlet can enter the valve body diaphragm from the arc-shaped edges of the upper valve body and the lower valve body, and flows into the water outlet through the water outlet of the valve body diaphragm.
Description
Technical Field
The utility model relates to a fluid control part technical field, in particular to nonmetal self-supporting differential pressure valve.
Background
The self-supporting differential pressure valve, also called self-supporting differential pressure control valve, is a self-supporting differential pressure control valve, and is characterized by that it has no need of external energy source, and can automatically regulate self-pressure change of regulated medium, and can automatically eliminate residual pressure head of pipe network and flow change resulted from pressure fluctuation, and can make the pressure difference of inlet and outlet of user constant, and is favorable for stabilizing system operation, and is specially applicable to individual metering or automatic control system.
The invention patent with the patent name of 'a differential pressure balance valve', and the patent publication number of CN103047461A discloses a valve body, which comprises a valve body, wherein the valve body is provided with a water inlet, a water outlet and a valve port communicated with the water inlet and the water outlet; the interior of the valve body is also provided with a diaphragm, the lower part of the diaphragm is connected with a transmission rod, a piston matched with the valve port is fixed on the transmission rod, and the bottom end of the transmission rod is supported with a working spring; the upper cavity of the diaphragm is communicated with a pressure guide pipe; the valve is characterized in that the upper end of the valve body is provided with an end cover, and the end cover and the diaphragm enclose an upper cavity of the diaphragm; and the end cover is provided with an adjusting part for adjusting the water inlet pressure of the pressure guide pipe.
The regulating valve regulates the pressure difference through the top regulating screw, the adjustable range of the pressure difference is larger, the precision is higher, but when the valve body moves, water passing through the regulating valve cannot pass through the valve linearly, namely, the water passing amount of the regulating valve cannot be accurately controlled, and errors still exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem how compensate above-mentioned prior art's defect, provide a nonmetal self-supporting differential pressure valve that can the precision be accurate.
The technical problem of utility model can be solved through following technical scheme:
the utility model provides a nonmetal self-supporting differential pressure valve, includes differential pressure valve casing 1 and valve body 2, include water inlet 11, delivery port 12 and be located in the differential pressure valve casing 1 the water inlet 11 with valve body diaphragm 13 between the delivery port 12, valve body diaphragm 13 lateral wall include with valve body diaphragm delivery port 131 that delivery port 12 is connected, valve body 2 is located in the valve body diaphragm 13, 2 downside of valve body is including giving all the time the elastomer 5 of the upwards effort of valve body 2.
The valve body 2 comprises an upper valve body 21 and a lower valve body 22 which are vertically arranged and have the same shape, the upper valve body 21 and the lower valve body 22 are spherical, the maximum diameter of the upper valve body 21 and the maximum diameter of the lower valve body 22 are the same as the diameter of the valve diaphragm 13, and the minimum distance between the upper valve body 21 and the lower valve body 22 is larger than the diameter of the valve diaphragm water outlet 131;
the upper valve body 21 comprises a maximum diameter part, when the valve body 2 moves up and down in the valve body diaphragm 13 until the maximum diameter part is not contacted with the valve body diaphragm 13, water in the water inlet 11 can enter the valve body diaphragm 13 from the arc-shaped edges of the spheres of the upper valve body 21 and the lower valve body 22 and flow into the water outlet 12 through the valve body diaphragm water outlet 131.
Further, the upper valve body 21 comprises a plurality of upper valve body prisms 23 vertically extending downwards from the maximum diameter position of the upper valve body 21, and the lower valve body 22 comprises a plurality of lower valve body prisms 24 vertically extending downwards from the maximum diameter position of the lower valve body 22;
the upper valve body prism 23 and the lower valve body prism 24 are on the same vertical line in the vertical direction, the length of the upper valve body prism 23 is greater than or equal to the radius of the upper valve body 21, the length of the lower valve body prism 24 is greater than or equal to the radius of the lower valve body 22, and the transverse distance between a pair of the upper valve body prisms 23 or a pair of the lower valve body prisms 24 which are oppositely arranged is the same as the diameter of the valve body diaphragm 13.
Further, when the water in the water inlet 11 flows into the water outlet 12 through the valve body diaphragm water outlet 131, the area of the flow rate is S, the width of the single upper valve body prism 23 and the single lower valve body prism 24 is b, the maximum radius of the upper valve body 21 and the lower valve body 22 is rb, and the minimum radius of the upper valve body 21 and the lower valve body 22 is ra, and the radius in the change of the upper valve body 21 and the lower valve body 22 is rx;
the following formula is followed between S and rx:
further, the valve body 2 includes a valve body seat ridge 251 contactable with the valve body diaphragm 13; when the valve body 2 moves upward, the valve body base prism 251 contacts the valve body diaphragm 13 and restricts the upward movement of the valve body 2.
Further, the non-metal self-supporting differential pressure valve comprises a fixing member 3 fixedly connected with the bottom of the valve body 2, the upper surface of the fixing member 3 comprises a fixing member groove 34,
the valve body 2 includes a valve body seating 25, a lower surface of the valve body seating 25 includes a valve body seating groove 255 corresponding to the fixing member groove 34,
the nonmetal self-supporting differential pressure valve further comprises a sealing ring 4, wherein the sealing ring 4 comprises a shell sealing protrusion 41 with one side hermetically connected with the accommodating part 14 of the sealing ring of the valve body, and a valve body sealing protrusion 42 hermetically connected with a gap formed by the fixing part groove 34 and the groove 255 of the valve body base.
Further, a sealing connection part 43 is connected between the housing sealing protrusion 41 and the valve body sealing protrusion 42, and the width of the sealing connection part is larger than the difference between the diameter of the valve body base 25 and the diameter of the valve body sealing ring accommodating part 14.
Further, the non-metal self-supporting differential pressure valve comprises a fixing piece 3 fixedly connected with the bottom of the valve body 2, the fixing piece 3 comprises a fixing piece accommodating part 32,
the bottom of the valve body 2 includes a valve body base receiving portion 253 recessed upward from the bottom of the valve body 2,
the fixing piece accommodating part 32 is matched with the valve body base accommodating part 253;
the diameter of the fixing member receiving portion 32 is the same as that of the elastic body 5.
Further, the non-metal self-supporting differential pressure valve comprises a valve body bottom part 6 positioned at the bottom, wherein the valve body bottom part 6 comprises a bottom elastic body accommodating part 61 for accommodating the elastic body 5, and the diameter of the bottom elastic body accommodating part 61 is the same as that of the elastic body 5.
Further, the non-metal self-supporting differential pressure valve comprises a fixing screw 35 and a fixing piece 3 fixedly connected with the bottom of the valve body 2,
the fixing member 3 includes a plurality of fixing member receiving holes 33, and the valve body 2 includes a plurality of valve body base receiving holes 254;
the fixing screw 35 passes through the fixing member receiving hole 33 and the valve body base receiving hole 254 to connect the fixing member 3 and the valve body 2.
Further, the pressure difference valve shell 1, the valve body 2, the fixing piece 3 and the valve body bottom 6 of the nonmetal self-supporting pressure difference valve are made of modified materials which are any one or more of PPS (polyphenylene sulfide), PPO (polyphenylene oxide) and PPA (polyphthalamide) and are main materials.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is:
the non-metal self-supporting differential pressure valve of the utility model can accurately control the throughput through the precise calculation of the radian of the valve body, and ensure that the throughput is linear, thereby improving the adjustment range of the differential pressure and having high precision; the bottom of the valve body is only wrapped with rubber at the edge, so that the preparation reaction of water pressure can be realized to the greatest extent on the premise of ensuring the sealing property and the practicability, the decomposition of acting force acting on the bottom of the valve body is prevented, the elastomer part is not contacted with water, and the service life of the elastomer is ensured; and simultaneously, the utility model discloses a non-metallic material, the quality is lighter, more environmental protection.
Drawings
Fig. 1 is a schematic cross-sectional view of a non-metal self-supporting differential pressure valve in a water flow direction according to the present invention;
FIG. 2 is a schematic view of a vertical water flow longitudinal section of a non-metallic self-supporting differential pressure valve
Fig. 3 is a schematic top-view exploded view of the main components of a non-metallic self-supporting differential pressure valve according to the present invention;
fig. 4 is a schematic top view of a differential pressure valve housing structure of a non-metallic self-supporting differential pressure valve according to the present invention;
fig. 5 is a schematic structural view of a differential pressure valve housing of the non-metallic self-supporting differential pressure valve according to the present invention;
fig. 6 is a schematic top view of a valve body structure of a non-metallic self-supporting differential pressure valve according to the present invention;
fig. 7 is a schematic bottom view of a valve body structure of a non-metallic self-supporting differential pressure valve according to the present invention;
fig. 8 is a schematic bottom view of a fixing member structure of a non-metallic self-supporting differential pressure valve according to the present invention;
fig. 9 is a schematic bottom view of a seal ring structure of a non-metallic self-supporting differential pressure valve according to the present invention;
fig. 10 is a schematic diagram illustrating a change of a water flow change area at a valve body diaphragm of the non-metallic self-supporting differential pressure valve according to the present invention;
fig. 11 is a schematic view of a radius change curve of an upper valve body or a lower valve body of the non-metal self-supporting differential pressure valve according to the present invention.
Reference numerals in the figures
The differential pressure valve comprises a differential pressure valve shell 1, a water inlet 11, a water outlet 12, a valve body diaphragm 13, a valve body diaphragm water outlet 131, a valve body sealing ring accommodating part 14, a valve body 2, an upper valve body 21, a lower valve body 22, an upper valve body prism 23, a lower valve body prism 24, a valve body base 25, a valve body base prism 251, a valve body base protrusion 252, a valve body base accommodating part 253, a valve body base accommodating hole 254, a valve body base groove 255, a fixing piece 3, a fixing piece protrusion 31, a fixing piece accommodating part 32, a fixing piece accommodating hole 33, a fixing piece groove 34, a fixing screw 35, a fixing nut 351, a sealing ring 4, a shell sealing protrusion 41, a valve body sealing protrusion 42, a sealing connecting part 43, an elastic body 5, a valve body bottom.
Detailed Description
The present invention will be further described below based on preferred embodiments with reference to the accompanying drawings.
In addition, for convenience of understanding, various components on the drawings are enlarged (thick) or reduced (thin), but this is not intended to limit the scope of the present invention.
The singular forms "a", "an", and "the" include plural referents and vice versa
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the products of the present invention are usually placed when using, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, in the description of the present invention, the terms first, second, etc. are used herein to distinguish between different elements, but these should not be limited by the order of manufacture or construed to indicate or imply relative importance, and their names may differ between the detailed description of the invention and the claims.
The words used in this specification are words of description used in describing embodiments of the invention, but are not intended to limit the invention. It is also to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "connected," and "connected" are intended to be open-ended, i.e., may be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The above-mentioned meaning belonging to the present invention is specifically understood by those skilled in the art.
Please refer to fig. 1-5, the non-metal self-supporting differential pressure valve of the present invention comprises a differential pressure valve housing 1, the two ends of the differential pressure valve housing 1 comprise a water inlet 11 and a water outlet 12, and a valve body diaphragm 13 located between the water inlet 11 and the water outlet 12, the valve body diaphragm 13 can contain a valve body 2, the valve body 2 can move up and down in the valve body diaphragm 13, and the valve body diaphragm 13 comprises a valve body diaphragm water outlet 131.
The differential pressure valve housing 1 comprises a valve body sealing ring receptacle 14 for fixing the sealing ring 4.
The main structure of the utility model is located in the valve body diaphragm 13 and the vertical direction of the valve body diaphragm 13, the lower side of the valve body 2 comprises a fixing part 3 matched with the shape of the lower part of the valve body 2, the valve body 2 and the fixing part 3 are connected through a fixing screw 35, the opposite surfaces of the valve body 2 contacted with the fixing part 3 are respectively provided with a groove for fixing and accommodating a sealing ring 4, therefore, the sealing ring 4 connects and seals the valve body 2 and the differential pressure valve shell 1, water only flows at the valve body 2 and above the sealing ring 4, the water is prevented from entering the lower side of the sealing ring 4, meanwhile, the sealing ring 4 is made of soft material, and the valve body 2 can move up and down in the valve body diaphragm 13 within the; 3 downside of mounting includes elastomer 5, and the one end and the 3 contacts of mounting of elastomer 5, the other end is connected with valve body bottom 6, and elastomer 5 can provide ascending power all the time for valve body 2, and after valve body 2 downstream under the exogenic action was ended, elastomer 5 can make valve body 2 upwards resume initial position.
Referring to fig. 1-3, 6-7, the main body of the valve body 2 is located within the valve body diaphragm 13. The valve body 2 comprises an upper valve body 21 and a lower valve body 22, the upper valve body 21 and the lower valve body 22 are identical in shape and are spherical, the maximum diameter of the sphere is identical to the diameter of the valve body diaphragm 13, and the maximum diameters of the upper valve body 21 and the lower valve body 22 are perpendicular to the valve body diaphragm 13. Meanwhile, the distance between the maximum diameter position of the upper valve body 21 and the maximum diameter position of the lower valve body 22 is larger than or equal to the diameter of the valve body diaphragm water outlet 131, so that when the upper valve body 21 and the lower valve body 22 are respectively positioned at the upper side and the lower side of the valve body diaphragm water outlet 131, the water inlet of the valve body diaphragm water outlet 131 is blocked.
Go up on the valve body 21 including being located the last valve body arris body 23 of last valve body 21 downside, lower valve body 22 is including being located lower valve body arris body 24 of lower valve body 22 downside, and it is perpendicular downwards that the maximum diameter department that goes up valve body 21 plays to go up valve body arris body 23, and its length is slightly longer than the radius of last valve body 21, and lower valve body arris body 24 plays perpendicularly downwards in the maximum diameter department of lower valve body 22, and its length is also slightly good at the radius of lower valve body 22, the utility model discloses in, the quantity of going up valve body arris body 23 and lower valve body arris body 24 all is 4 respectively, and two liang of opposite directions set up, and the last valve body arris body 23 or the lower valve body arris body 24 of its every two opposite directions settings, its transverse length (promptly with valve body diaphragm 13 vertically direction) is the same with valve body diaphragm 13 diameter, and spacing upward valve body 21 and lower valve body 22 can only do the up-and-down motion of.
Meanwhile, when the upper valve body 21 and the lower valve body 22 do not obstruct the valve body diaphragm water outlet 131 (i.e. the maximum diameter of the upper valve body 21 is not in contact with the valve body diaphragm 13), the upper valve body rib 23 and the lower valve body rib 24 also form a gap between the upper valve body 21, the lower valve body 22, and the upper valve body 21 and the lower valve body 22. A plurality of upper valve body prisms 23 enable gaps which can enable water flow to pass to exist between the upper valve body 21 and the valve body diaphragm 13, and the gaps between the adjacent upper valve body prisms 23 are fixed; a plurality of lower valve body prisms 24 enable gaps which can enable water flow to pass to exist between the lower valve body 22 and the valve body diaphragm 13, and the gaps between the adjacent lower valve body prisms 24 are fixed; a gap through which water flows is also formed between the upper valve body 21 and the lower valve body 22, and the gap between the upper valve body 21 and the lower valve body 22 is also fixed. Thereby allowing water to flow into the valve body diaphragm outlet 131 from between the upper valve body 21 and the valve body diaphragm 13, from between the lower valve body 22 and the valve body diaphragm 13, and from between the upper valve body 21 and the lower valve body 22.
2 bottoms of valve body include the valve body base 25 of being connected with fixed even 3, including the valve body base accommodation hole 254 that is used for holding fixed screw 35 on the valve body base 25, the utility model discloses in, the number of valve body base accommodation hole 254 is 4, certainly, as long as can be with 3 fixed connection of valve body 2 and mounting, the number of its valve body base accommodation hole 254 the utility model discloses do not restrict.
The upper surface of the valve body base 25 includes a valve body base projection 252 that projects above the upper surface of the valve body base 25, and correspondingly, the lower surface of the valve body base 25 includes a valve body base receiving portion 253 that is recessed below the lower surface of the valve body base 25.
The valve body base protrusion 252 is provided with a valve body base prism 251 which can contact with the valve body diaphragm 13, when the valve body 2 moves upwards, the valve body base prism 251 contacts with the valve body diaphragm 13 and limits the valve body 2 to continue moving upwards, and at this time, the position of the valve body 2 on the valve body diaphragm 13 is the upper top end of the valve body 2 moving in the valve body diaphragm 13.
The utility model discloses in, valve body base arris body 251 is 4 arriss of protruding in the arris body of the protruding 252 upper surface of valve body base to the top for when valve body base arris body 251 and the contact of valve body diaphragm 13, still there is the clearance between the protruding 252 of valve body base and the valve body diaphragm 13, rivers still can circulate through the clearance that the protruding 252 of valve body base formed with valve body diaphragm 13.
The lower side of the valve body base bulge 252 is provided with a valve body base groove 255 for accommodating the sealing ring 4, and the valve body base groove 255 is annularly arranged on the side periphery of the valve body base groove 255.
The utility model discloses in, go up valve body 21 and lower valve body 22 and not be the regular sphere, the diameter of department (can be with the contact department of valve body diaphragm 13) is the biggest in the middle of valve body 21 and lower valve body 22 on it, and it is different with the maximum diameter department upwards to reach decurrent spherical surface radian from the middle, and this radian design makes the relation between the flow of rivers and the radius of last valve body 21 and lower valve body 22 surface radian in this differential pressure valve be linear curve, can realize the accurate control to the differential pressure valve from this. After the valve body 2 moves upwards, water flow can flow into the valve body diaphragm water outlet 131 through gaps among the upper valve body prisms 23, the lower valve body prisms 24 and the upper valve body 21 and the lower valve body 22, and the upper valve body 21 and the lower valve body 22 move up and down, so that the flow area of the water flow between the upper valve body 21 and the lower valve body 22 and the valve body diaphragm 13 is changed continuously, and the flow size of the water flow from the water inlet 11 to the water outlet 12 can be changed. For the accurate control through-flow size, the utility model discloses explain the external diameter numerical value size of going up valve body 21 and lower valve body 22 spherical surface radian.
The utility model discloses in, the circulation gets into the region of delivery port 12 promptly for the opening, so the discharge of opening promptly from last valve body 21 and get into the water yield that flows in valve body diaphragm delivery port 131 behind the valve body diaphragm 13 between the lower valve body 22, but need notice, the utility model discloses well upper valve body 21 reaches down valve body 22 still includes valve body arris body 23 and lower valve body arris body 24 to and go up valve body 21 and down the connecting rod between the valve body 22, the connecting rod is cylindrically. These parts of water cannot flow through, so the water flow rate into the through opening also needs to remove the volume occupied by the upper valve body prism 23, the lower valve body prism 24 and the connecting rod between the upper valve body 21 and the lower valve body 22.
In practical application, the water flow required to pass through the through hole of the differential pressure valve is different under different scenes. The utility model discloses in establish the discharge area of opening into S, the radius of valve body 21 and lower valve body 22 spherical surface radian can be set up according to the flux of needs when in actual use. And motion under different scenes is realized.
Referring to fig. 10, the shaded area indicates the area of water flow through the port S, the width of the single upper valve body rib 23 and the single lower valve body rib 24 is b, the dotted line indicates the radius in change is rx, the circle on the outermost circle indicates the maximum radius rb of the upper valve body 21 and the lower valve body 23, and the circle on the innermost circle indicates the minimum radius ra of the connecting rod.
In use, the area of S changes with the up-and-down movement of the valve body 2, and when the maximum diameter of the upper valve body 21 and the lower valve body 22 contacts the valve body diaphragm 13, the area of S is the smallest (0), and when the valve body base prism 251 contacts the valve body diaphragm 13, the area of S is the largest.
From this, the formula for s can be derived:
s＝rb2·π-rx2pi-4 × (cross-sectional areas of the upper valve body rib 23 and the lower valve body rib 24).
The maximum area of S and the minimum area of S are calculated by a formula with the cross-sectional areas of the upper valve body rib 23 and the lower valve body rib 24, and the relational expression between rx and S can be obtained as follows:
with this relationship, the geometry of the linear cross-sectional area variation of rx and s can be obtained as shown in fig. 11.
In actual use, the water flow of the through port can be substituted into a formula for calculation according to the requirement, so that the numerical value of the radius in change can be calculated according to the area of the required flow according to different models and flow requirements, the outer arc degree of the spheres of the upper valve body 21 and the lower valve body 22 can be determined, and the shapes of the upper ball valve 21 and the lower ball valve 22 can be finally determined.
Referring to fig. 1 to 3 and 8, the fixing member 3 is located at the lower side of the valve body 2 and is fixedly connected to the valve body 2, so that the upper surface of the fixing member 3 includes a fixing member protrusion 31 protruding from the upper surface of the fixing member 3 and matching with the valve body base protrusion 252, the lower surface of the fixing member 3 includes a fixing member receiving portion 32 recessed from the lower surface of the fixing member 3 and matching with the valve body base receiving portion 253, and after the fixing screw 35 connects the valve body 2 and the fixing member 3, the fixing member 3 and the lower surface of the valve body 2 are connected into a whole.
The fixing member receiving portion 32 is used for receiving the elastic member 5, and the diameter of the fixing member receiving portion 32 is the same as that of the elastic member 5, so that when one side of the elastic member 5 is received in the fixing member receiving portion 32, the elastic member 5 cannot easily fall off from the fixing member receiving portion 32.
The side surface of the fixing member 3 includes a fixing member accommodating hole 33 matching with the valve body base accommodating hole 254, a fixing screw 35 passes through the valve body base accommodating hole 254 and the fixing member accommodating hole 33, and a fixing nut 351 fixedly connects the valve body base accommodating hole 254 and the fixing member accommodating hole 33 from the upper and lower sides.
The upper surface of the fixing member 3 includes a fixing member groove 34 matching with the valve body seating groove 255.
Referring to fig. 1 to 3 and 9, the sealing ring 4 includes a valve body sealing protrusion 42 received in the valve body base groove 255 and the fixing member groove 34, and a housing sealing protrusion 41 received in the valve body sealing ring receiving portion 14, a sealing connection portion 43 is connected between the housing sealing protrusion 41 and the valve body sealing protrusion 42, and a width of the sealing connection portion 43 is greater than a difference between a maximum diameter of the valve body base 25 and the fixing member 3 and a diameter of the valve body sealing ring receiving portion 14, so that the valve body 2 can move up and down.
The utility model discloses in, sealing washer 4's material can be deformable waterproof materials such as rubber.
The utility model discloses in, sealing connection portion 43 only is narrower round between valve body base 25 and valve body sealing washer holding department 14, when will pressing down the decurrent effort of valve body base 25, valve body base 25 is hard material, and narrower sealing connection portion 43 can make the ascending reaction force of valve body base 25 the same, avoids the effort that rubber offsets at the deformation in-process from this.
Referring to fig. 1 to 3, the valve body bottom 6 is located at the bottom of the differential pressure valve, the bottom elastic body accommodating portion 61 is disposed on the valve body bottom 6, and the diameter of the bottom elastic body accommodating portion 61 is the same as the diameter of the elastic body 5, so that when one side of the elastic body 5 is accommodated in the bottom elastic body accommodating portion 61, the elastic body 5 cannot easily fall off from the bottom elastic body accommodating portion 61.
The utility model discloses in, the material of differential valve casing 1, valve body 2, mounting 3, the valve body bottom 6 of nonmetal self-supporting differential valve is the modified material for the main material of arbitrary one or several kinds in PPS (polyphenylene sulfide), PPO (polyphenylene oxide), PPA (polyphthalamide).
The detailed description of the embodiments of the present invention has been presented, and it will be apparent to those skilled in the art that the present invention can be modified and modified without departing from the principles of the present invention, and the modifications and modifications also belong to the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a nonmetal self-supporting differential pressure valve, includes differential pressure valve casing (1) and valve body (2), include water inlet (11), delivery port (12) and be located in differential pressure valve casing (1) water inlet (11) with valve body diaphragm (13) between delivery port (12), valve body diaphragm (13) lateral wall include with valve body diaphragm delivery port (131) that delivery port (12) are connected, valve body (2) are located in valve body diaphragm (13), valve body (2) downside includes and gives all the time elastomer (5) of the ascending effort of valve body (2), its characterized in that:
the valve body (2) comprises an upper valve body (21) and a lower valve body (22) which are vertically arranged and have the same shape, the upper valve body (21) and the lower valve body (22) are spherical, the maximum diameter of the upper valve body (21) and the maximum diameter of the lower valve body (22) are the same as the diameter of the valve body diaphragm (13), and the minimum distance between the upper valve body (21) and the lower valve body (22) is larger than the diameter of the valve body diaphragm water outlet (131);
the upper valve body (21) comprises a maximum diameter part, when the valve body (2) moves up and down in the valve body diaphragm (13) until the maximum diameter part is not contacted with the valve body diaphragm (13), water in the water inlet (11) can enter the valve body diaphragm (13) from the arc-shaped edges of the spheres of the upper valve body (21) and the lower valve body (22) and flows into the water outlet (12) through the valve body diaphragm water outlet (131).
2. A non-metallic self-supporting differential pressure valve according to claim 1, wherein:
the upper valve body (21) comprises a plurality of upper valve body prisms (23) vertically and downwardly extending from the maximum diameter position of the upper valve body (21), and the lower valve body (22) comprises a plurality of lower valve body prisms (24) vertically and downwardly extending from the maximum diameter position of the lower valve body (22);
go up valve body arris body (23) and lower valve body arris body (24) are in on the same vertical line in the vertical direction, just the length more than or equal to of going up valve body arris body (23) go up the radius of valve body (21), the length more than or equal to of lower valve body arris body (24) the radius of lower valve body (22), wherein the opposite direction set up a pair of go up valve body arris body (23) or a pair of transverse distance length between lower valve body arris body (24) with the diameter of valve body diaphragm (13) is the same.
3. A non-metallic self-supporting differential pressure valve according to claim 2, wherein:
when water in the water inlet (11) flows into the water outlet (12) through a valve body diaphragm water outlet (131), the area of the flow rate is S, the width of a single upper valve body prism (23) and a single lower valve body prism (24) is b, the maximum radius of the upper valve body (21) and the lower valve body (22) is rb, and the minimum radius of the upper valve body (21) and the lower valve body (22) is ra, and the radius in the change of the upper valve body (21) and the lower valve body (22) is rx;
the following formula is followed between S and rx:
4. a non-metallic self-supporting differential pressure valve according to claim 1, wherein:
the valve body (2) comprises a valve body seat prism (251) which can be contacted with the valve body diaphragm (13);
when the valve body (2) moves upwards, the valve body base prism (251) is in contact with the valve body diaphragm (13) and limits the upward movement of the valve body (2).
5. A non-metallic self-supporting differential pressure valve according to claim 1, wherein:
the nonmetal self-supporting differential pressure valve comprises a fixing piece (3) fixedly connected with the bottom of the valve body (2), the upper surface of the fixing piece (3) comprises a fixing piece groove (34),
the valve body (2) comprises a valve body base (25), the lower surface of the valve body base (25) comprises a valve body base groove (255) corresponding to the fixing piece groove (34),
the nonmetal self-supporting differential pressure valve further comprises a sealing ring (4), wherein the sealing ring (4) comprises a shell sealing protrusion (41) with one side being in sealing connection with a valve body sealing ring accommodating part (14), and further comprises a valve body sealing protrusion (42) which is in sealing connection with a gap formed by a fixing part groove (34) and a valve body base groove (255).
6. A non-metallic self-supporting differential pressure valve according to claim 5, wherein:
and a sealing connecting part (43) is connected between the shell sealing bulge (41) and the valve body sealing bulge (42), and the width of the sealing connecting part is greater than the difference between the diameter of the valve body base (25) and the diameter of the valve body sealing ring accommodating part (14).
7. A non-metallic self-supporting differential pressure valve according to claim 1, wherein:
the nonmetal self-supporting differential pressure valve comprises a fixing piece (3) fixedly connected with the bottom of the valve body (2), the fixing piece (3) comprises a fixing piece accommodating part (32),
the bottom of the valve body (2) comprises a valve body base accommodating part (253) which is sunken upwards at the bottom of the valve body (2),
the fixing piece accommodating part (32) is matched with the valve body base accommodating part (253);
the diameter of the fixing piece accommodating part (32) is the same as that of the elastic body (5).
8. A non-metallic self-supporting differential pressure valve according to claim 1, wherein:
the nonmetal self-supporting differential pressure valve comprises a valve body bottom (6) located at the bottom, wherein the valve body bottom (6) comprises a bottom elastic body accommodating part (61) used for accommodating the elastic body (5), and the diameter of the bottom elastic body accommodating part (61) is the same as that of the elastic body (5).
9. A non-metallic self-supporting differential pressure valve according to claim 1, wherein:
the non-metal self-supporting differential pressure valve comprises a fixing screw (35) and a fixing piece (3) fixedly connected with the bottom of the valve body (2),
the fixing piece (3) comprises a plurality of fixing piece accommodating holes (33), and the valve body (2) comprises a plurality of valve body base accommodating holes (254);
the fixing screw (35) penetrates through the fixing piece accommodating hole (33) and the valve body base accommodating hole (254) to connect the fixing piece (3) with the valve body (2).
10. A non-metallic self-supporting differential pressure valve according to claim 1, wherein:
the non-metal self-supporting differential pressure valve is characterized in that the differential pressure valve shell (1), the valve body (2), the fixing piece (3) and the valve body bottom (6) are made of modified materials which are any one or more of polyphenylene sulfide, polyphenyl ether and polyphthalamide and are main materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920547371.XU CN210088098U (en) | 2019-04-22 | 2019-04-22 | Nonmetal self-supporting differential pressure valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920547371.XU CN210088098U (en) | 2019-04-22 | 2019-04-22 | Nonmetal self-supporting differential pressure valve |
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| CN210088098U true CN210088098U (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081216A (en) * | 2019-04-22 | 2019-08-02 | 山东琅卡博能源科技股份有限公司 | A kind of nonmetallic self-upright pressure-differential valve |
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2019
- 2019-04-22 CN CN201920547371.XU patent/CN210088098U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081216A (en) * | 2019-04-22 | 2019-08-02 | 山东琅卡博能源科技股份有限公司 | A kind of nonmetallic self-upright pressure-differential valve |
| CN110081216B (en) * | 2019-04-22 | 2024-01-23 | 山东琅卡博能源科技股份有限公司 | Nonmetal self-standing differential pressure valve |
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