CN210344409U - Fused salt check valve for photo-thermal power generation - Google Patents
Fused salt check valve for photo-thermal power generation Download PDFInfo
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- CN210344409U CN210344409U CN201920644159.5U CN201920644159U CN210344409U CN 210344409 U CN210344409 U CN 210344409U CN 201920644159 U CN201920644159 U CN 201920644159U CN 210344409 U CN210344409 U CN 210344409U
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Abstract
The utility model discloses a fused salt check valve for solar-thermal power generation, including valve body, valve gap, valve seat, case and valve rod, the valve pocket is equipped with in the valve body, and this valve pocket divide into upper valve pocket and lower valve pocket, the valve body both ends be equipped with the fluid inlet and the fluid outlet that lower valve pocket communicates, the juncture of fluid inlet with lower valve pocket is provided with the valve seat, the fluid inlet with the fluid outlet is located same horizontal plane, and the fluid inlet with the top surface of fluid outlet and the bottom surface of valve body all keep equal with the horizontal plane; the valve seat is characterized in that a first inclined bump extends from the inner side surface of a corner, connected with the valve body, at the upper end of the fluid inlet, a second inclined bump extends from the bottom surface of the inner side of the valve body, and the first inclined bump and the second inclined bump are oppositely arranged to form the valve seat. The utility model discloses not only solved the accumulational problem of ordinary check valve fused salt, still satisfied the valve body and not by the throat, guaranteed the circulation ability of valve.
Description
Technical Field
The utility model relates to the technical field of valves, more specifically the utility model relates to a fused salt check valve for solar-thermal power generation.
Background
When the temperature of the fused salt medium for photo-thermal power generation is lower than 280 ℃, a crystallization phenomenon can be generated, but due to the structural difference of the ordinary check valve body, as shown in the attached drawing figure 1, the fused salt medium is easy to accumulate at the bottom of the valve body (namely, in an area shown by a dotted line), so that the fused salt medium is not completely discharged and remains, and after the temperature is reduced, the fused salt medium is crystallized inside the valve body, so that the valve cannot act, the system control is influenced, the equipment is damaged, and the power generation efficiency of the whole power generation system is influenced.
In order to solve this problem, application number is 201721355785.X, and application date is 2017 year 10 month 20 days, and the utility model patent of public day is 2018 year 07 month 10 days "a check valve for light and heat fused salt medium", discloses that this check valve includes the valve body, sets up in the valve body and can revolvable valve rod and the case of being connected with the valve rod, the inside disk seat that seals up the complex with the case that is equipped with of valve body, the disk seat falls into inhalant canal and exhalant canal with the valve body is inside, the cross section of inhalant canal and exhalant canal's bottom becomes a straight line, inhalant canal and exhalant canal become the splayed. This patent is through the inhalant canal with the valve body and go out the water flow path design and be the splayed structure, has avoided the inside medium of valve body to pile up, nevertheless as shown in attached figure 2, this kind of valve body has met because the throat of dotted line department in the in-service use to make the circulation ability decline of whole valve, influence the problem of entire system's flow, the in-service use effect is not good.
Therefore, it is necessary to design a fused salt check valve for photo-thermal power generation, which can not only solve the problem of fused salt accumulation of a common check valve, but also ensure the flow capacity of the valve without necking down the valve body.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a molten salt check valve for photo-thermal power generation that can effectively solve the above problems.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fused salt check valve for photo-thermal power generation comprises a valve body, a valve cover, a valve seat, a valve core and a valve rod, wherein the valve cover is installed at the top of the valve body, a valve cavity is arranged in the valve body and is divided into an upper valve cavity and a lower valve cavity, a fluid inlet and a fluid outlet which are communicated with the lower valve cavity are arranged at two ends of the valve body, the valve seat is arranged at the junction of the fluid inlet and the lower valve cavity, the valve core is matched with the valve seat in a sealing mode, the valve core is movably connected with the valve seat and is driven and connected by the valve rod, the fluid inlet and the fluid outlet are located on the same horizontal plane, and the top surfaces of the fluid inlet and the fluid outlet and the bottom surface of the valve; a first inclined convex block extends from the inner side surface of the corner at the upper end of the fluid inlet, which is connected with the valve body, and the first inclined convex block inclines towards the direction far away from the fluid inlet and the upper valve cavity; the bottom surface of the inner side of the valve body extends to form a second inclined convex block, the second inclined convex block is inclined in the direction close to the fluid inlet and the upper valve cavity, and the first inclined convex block and the second inclined convex block are oppositely arranged to form the valve seat.
The utility model discloses a check valve to current being used for light and heat fused salt medium carries out further improvement, has not only solved the accumulational problem of ordinary check valve fused salt, has still satisfied the valve body and has not been guaranteed the circulation ability of valve by the throat.
On the basis of the technical scheme, the utility model discloses still can make following improvement:
preferably, the side wall of the upper valve cavity close to one side of the fluid inlet is designed into an arc-shaped convex shape, a valve shaft used for being connected with the valve rod is fixedly installed in an inner cavity formed by the arc-shaped convex side wall, the valve shaft is installed in the inner cavity formed by the arc-shaped convex side wall and does not occupy the space of the upper valve cavity, accordingly, the influence of the valve cavity on the circulation of a molten salt medium is greatly reduced, and the circulation capacity of the valve is further improved.
Preferably, the fluid inlet, the valve seat and the valve core jointly enclose a cavity similar to a right trapezoid, so that a connecting port of the fluid inlet and the lower valve cavity is free from necking, and circulation of a molten salt medium is not affected.
Preferably, the range of the acute angle on the right trapezoid is 30-45 degrees, and the valve core is not easy to be pushed away by the pressure of the molten salt medium due to the fact that the angle is too large or too small.
Preferably, the first inclined bump, the second inclined bump and the valve body are of an integrated structure, and the integrated structure can effectively improve the overall mechanical strength of the check valve.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a fused salt check valve for solar-thermal power generation has following beneficial effect:
according to the check valve, the splayed structure of the fluid inlet and the fluid outlet in the prior art is improved into a straight-through pipeline structure with the splayed structure of the fluid inlet and the fluid outlet in the horizontal direction, and the structure of the valve seat is improved, so that the inclined convex block I and the inclined convex block II are arranged in opposite directions from top to bottom and then are in sealing fit with the valve core, the medium accumulation in the valve body is avoided, the width of the joint of the fluid inlet and the lower valve cavity is greatly increased, the opening of the lower valve cavity, into which molten salt medium enters, is prevented from being shrunk, and the circulation capacity of the valve is ensured.
Additionally, the utility model discloses still further hide the valve shaft and install in the inner chamber that the valve chamber is close to the outer convex lateral wall of arc on one side of the fluid inlet, make the valve shaft also can not cause too much influence to the circulation of fused salt medium.
Therefore, the utility model discloses the structure has simple reasonable, and mechanical structure is strong, and long service life's advantage has still effectively guaranteed the circulation ability of valve, has obvious technical advantage than prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a valve body of a common check valve in the prior art.
Fig. 2 is a schematic structural diagram of an improved check valve body in the prior art.
Figure 3 is a schematic structural diagram of the fused salt check valve body for photo-thermal power generation of the present invention.
Wherein, in the figure,
1-a valve body; 2-valve seat, 21-inclined lug I, 22-inclined lug II; 3-a valve core; 4-upper valve cavity; 5-lower valve cavity; 6-a fluid inlet; 7-a fluid outlet; 8-valve shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 3, the embodiment of the utility model discloses a fused salt check valve for solar-thermal power generation, including valve body 1, valve gap, disk seat 2, case 3 and valve rod, wherein, not shown in the partial structure chart.
The valve cover is installed at the top of the valve body 1, the valve cavity is arranged in the valve body 1 and is divided into an upper valve cavity 4 and a lower valve cavity 5, a fluid inlet 6 and a fluid outlet 7 which are communicated with the lower valve cavity 5 are arranged at two ends of the valve body 1, a valve seat 2 is arranged at the junction of the fluid inlet 6 and the lower valve cavity 5, a valve core 3 is arranged on the valve seat 2 in a sealing fit mode, and the valve core 3 is movably connected with the valve seat 2 and is in driving connection with the valve rod.
The fluid inlet 6 and the fluid outlet 7 are located on the same horizontal plane, and the top surfaces of the fluid inlet 6 and the fluid outlet 7 and the bottom surface of the valve body 1 are all level with the horizontal plane, i.e. the fluid inlet 6, the lower valve chamber 5 and the fluid outlet 7 form a horizontal straight-through pipeline.
An inclined convex block I21 extends on the inner side surface of the corner connected with the valve body 1 at the upper end of the fluid inlet 6, and the inclined convex block I21 inclines away from the fluid inlet 6 and the upper valve cavity 4; a second inclined projection 22 extends on the bottom surface of the inner side of the valve body 1, the second inclined projection 22 inclines towards the direction close to the fluid inlet 6 and the upper valve cavity 4, and the first inclined projection 21 and the second inclined projection 22 are oppositely arranged to form the valve seat 2. The first inclined projection 21, the second inclined projection 22 and the valve body 1 are preferably arranged in an integrated structure. The fluid inlet 6 together with the valve seat 2 and the valve element 3 enclose a chamber shaped like a right trapezoid, the acute angle of which preferably ranges from 30 ° to 45 °, more preferably from 30 ° to 40 °, even more preferably from 30 ° to 35 °.
In order to further optimize the technical scheme, the side wall of the upper valve cavity 4 close to the fluid inlet 6 can be designed to be in an arc-shaped convex shape, a valve shaft 8 used for connecting a valve rod is fixedly installed in an inner cavity formed by the arc-shaped convex side wall, and the valve rod drives the valve core 3 by rotating around the valve shaft 8.
The utility model discloses a concrete theory of operation does:
when the molten salt check valve works, a molten salt medium enters from the fluid inlet 6, and the upper surface and the lower surface of the fluid inlet 6 are both horizontally arranged, so that a channel of the molten salt medium cannot be gradually reduced when the molten salt medium flows, and the normal circulation of the medium cannot be influenced; the valve core 3 is arranged on the first inclined lug 21 and the second inclined lug 22 which are arranged in opposite positions, under the action of the pressure of the molten salt medium, the valve core 3 is pushed open, the valve is opened, and the molten salt medium flows out from the fluid outlet 7 along the lower valve cavity 5, and because the upper surface and the lower surface of the fluid outlet 7 and the bottom surface of the lower valve cavity 5 are horizontally arranged, the molten salt medium cannot be accumulated in the valve body 1 when flowing, and the situations of unclean discharge and influence on circulation cannot occur; the valve shaft 8 is positioned in the inner cavity of the arc-shaped convex side wall at one side of the upper valve cavity 4 close to the fluid inlet 6, so that the space of the valve cavity is not occupied, and the flowing of a molten salt medium is not influenced too much; when the molten salt medium flows backwards, the pressure of the molten salt medium can enable the valve core 3 to be tightly attached to the first inclined lug 21 and the second inclined lug 22, and the valve is closed to prevent the molten salt medium from flowing backwards, so that the function of the check valve is realized.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a fused salt check valve for solar-thermal power generation, includes valve body (1), valve gap, disk seat (2), case (3) and valve rod, valve body (1) top installation the valve gap, valve body (1) inside is equipped with the valve pocket, and this valve pocket divide into valve pocket (4) and lower valve pocket (5), valve body (1) both ends be equipped with communicating fluid inlet (6) and fluid outlet (7) of lower valve pocket (5), fluid inlet (6) with the juncture of lower valve pocket (5) is provided with disk seat (2), sealed cooperation has on disk seat (2) case (3), case (3) with disk seat (2) swing joint and by valve rod drive connection, its characterized in that, fluid inlet (6) with fluid outlet (7) are located same horizontal plane, just fluid inlet (6) with the top surface of fluid outlet (7) and the bottom surface of valve body (1) all with the level The surfaces are kept flat; a first inclined bump (21) extends from the inner side surface of the corner at the upper end of the fluid inlet (6) connected with the valve body (1), and the first inclined bump (21) inclines towards the direction far away from the fluid inlet (6) and the upper valve cavity (4); a second inclined convex block (22) extends from the bottom surface of the inner side of the valve body (1), the second inclined convex block (22) inclines towards the direction close to the fluid inlet (6) and the upper valve cavity (4), and the first inclined convex block (21) and the second inclined convex block (22) are oppositely arranged to form the valve seat (2).
2. A molten salt check valve for photo-thermal power generation according to claim 1, characterized in that: the side wall of the upper valve cavity (4) close to one side of the fluid inlet (6) is designed to be arc-shaped and convex, and a valve shaft (8) used for connecting the valve rod is fixedly arranged in an inner cavity formed by the arc-shaped and convex side wall.
3. A molten salt check valve for photo-thermal power generation according to claim 1, characterized in that: the fluid inlet (6), the valve seat (2) and the valve core (3) jointly enclose a cavity similar to a right trapezoid.
4. A molten salt check valve for photo-thermal power generation according to claim 3, characterized in that: the acute angle range on the right trapezoid is 30-45 degrees.
5. A molten salt check valve for photo-thermal power generation according to claim 1, characterized in that: the first inclined lug (21), the second inclined lug (22) and the valve body (1) are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920644159.5U CN210344409U (en) | 2019-05-07 | 2019-05-07 | Fused salt check valve for photo-thermal power generation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920644159.5U CN210344409U (en) | 2019-05-07 | 2019-05-07 | Fused salt check valve for photo-thermal power generation |
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| CN210344409U true CN210344409U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920644159.5U Active CN210344409U (en) | 2019-05-07 | 2019-05-07 | Fused salt check valve for photo-thermal power generation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173579A (en) * | 2019-05-07 | 2019-08-27 | 浙江高中压阀门有限公司 | A kind of fused salt check-valves and its manufacture craft for photo-thermal power generation |
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- 2019-05-07 CN CN201920644159.5U patent/CN210344409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173579A (en) * | 2019-05-07 | 2019-08-27 | 浙江高中压阀门有限公司 | A kind of fused salt check-valves and its manufacture craft for photo-thermal power generation |
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