Regulating valve for photo-thermal power generation fused salt with quick connecting structure

Abstract

The utility model relates to the related technical field of photo-thermal power generation fused salt, in particular to a photo-thermal power generation fused salt regulating valve with a quick connecting structure, which is characterized in that a valve body and a packing gland are arranged on the surface of a base station, a packing groove and a threaded hole are arranged in the base station, a pressing groove and a branch groove are arranged on the surface of the base station, and a pressing plate and a packing pressing ring are arranged on the surface of the packing gland. A positioning column and a spring are arranged on the surface of the threaded hole, a bottom ring is arranged on the surface of the spring, a sliding plate is arranged on the surface of the bottom ring, a positioning plate and a limiting plate are arranged on the surface of the sliding plate, a pressing plate and a screw are arranged on the surface of the nut, a positioning groove is formed in the nut, and a circular groove is formed in the screw; the device has the beneficial effects that the packing gland achieves the effect of installing the packing pressing ring, meanwhile, the packing gland conducts secondary sealing on the base table, the supporting plate strengthens the stability of the packing gland structure, the positioning plate achieves the effect of positioning the nut, the phenomenon that the nut rotates due to vibration is avoided, and therefore it is guaranteed that the packing pressing ring cannot be loosened.

Description

Technical Field

[0001] The utility model relates to the technical field related to molten salt for photothermal power generation, and specifically to a regulating valve for molten salt for photothermal power generation with a quick connection structure. Background Art

[0002] Solar thermal power generation molten salt is a technology that uses solar energy to convert thermal energy into electrical energy. In a solar thermal power generation system, molten salt is heated by focusing sunlight, converting it into high-temperature thermal energy, which is then used to drive a generator to convert it into electrical energy.

[0003] In the prior art, the regulating valve is connected to the molten salt pipeline of the solar thermal power generation by bolts. The valve stem on the regulating valve controls the movement of the piston, and the piston blocks the flow of the molten salt in the pipeline. A filler is provided on the top side surface of the valve stem. The filler insulates the molten salt of the solar thermal power generation. The filler is compacted by a packing gland, and the packing gland is connected to the valve body of the regulating valve by multiple bolts.

[0004] However, when the piston blocks the molten salt, the molten salt impacts the piston, which causes the piston to vibrate. The vibration is transmitted along the valve stem to the stuffing gland, and finally, the vibration is transmitted to the bolt. When the bolt is vibrated for a long time, the bolt becomes loose, which causes the stuffing gland to loosen, causing the stuffing to fall off, thereby reducing the thermal insulation effect of the regulating valve on the molten salt for solar thermal power generation, and it is time-consuming and labor-intensive to connect the stuffing gland with multiple bolts. Utility Model Content

[0005] The utility model aims to provide a regulating valve for molten salt in solar thermal power generation with a quick connection structure to solve the problem that when the piston blocks the molten salt proposed in the above-mentioned background technology, the molten salt impacts the piston, the impact causes the piston to vibrate, and the vibration is transmitted to the stuffing gland along the valve stem, and finally, the vibration is transmitted to the bolt. When the bolt is vibrated for a long time, the bolt becomes loose, and the loosening causes the stuffing gland to loosen, which causes the stuffing to fall off, thereby reducing the thermal insulation effect of the regulating valve on the molten salt in solar thermal power generation, and the problem that it is time-consuming and labor-intensive to connect the stuffing gland with multiple bolts.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a regulating valve for molten salt for solar thermal power generation with a quick connection structure, the regulating valve for molten salt for solar thermal power generation with a quick connection structure comprising:

[0007] A base, wherein a valve body and a packing gland are provided on the surface of the base, a packing groove and a threaded hole are provided in the base, a pressure groove and a support groove are provided on the surface of the base, and a pressure plate and a packing pressure ring are provided on the surface of the packing gland;

[0008] A threaded hole, a positioning column and a spring are provided on the surface of the threaded hole, a bottom ring is provided on the surface of the spring, a slide plate is provided on the surface of the bottom ring, and a positioning plate and a limit plate are provided on the surface of the slide plate; and

[0009] The nut has a pressing plate and a screw rod on its surface, a positioning groove is provided in the nut, and a circular groove is provided in the screw rod.

[0010] Preferably, a valve body is provided on the outer surface of the bottom of the base, the outer surface of the bottom of the base and the inner surface of the top of the valve body are fixedly connected, a plurality of branch grooves are provided on the outer surface of the top of the base, a packing groove is provided on the inner surface of the base, a valve stem is provided on the inner surface of the base, the inner surface of the base and the outer surface of the valve stem are slidably connected, a threaded hole is provided inside the side end of the base, a packing gland is provided on the outer surface of the top of the base, and a pressure groove is provided on the outer surface of the top of the base.

[0011] Preferably, the inner surface of the bottom end of the packing gland and the outer surface of the top end of the base are abutted against each other, and the outer surface of the bottom end of the packing gland is provided with a support plate, the outer surface of the bottom end of the packing gland and the inner surface of the top end of the support plate are fixedly connected, and the outer surface of the support plate and the inner surface of the support groove are slidably connected, and the bottom end of the packing gland is provided with a packing pressure ring, the bottom end of the packing gland and the top end of the packing pressure ring are fixedly connected, and the outer surface of the packing pressure ring and the inner surface of the packing groove are slidably connected, and the bottom end of the packing gland is provided with a pressure plate, the bottom end of the packing gland and the top end of the pressure plate are fixedly connected, and the bottom surface of the pressure plate and the bottom surface of the pressure groove are abutted against each other, and the bottom end of the packing gland is provided with a support plate, and a support groove is opened on the surface of the base, and the outer surface of the support plate and the inner surface of the support groove are abutted against each other.

[0012] Preferably, a positioning column is provided on the bottom surface of the threaded hole, and the bottom surface of the threaded hole and the bottom end of the positioning column are fixedly connected. A spring is provided on the bottom surface of the threaded hole, and the bottom surface of the threaded hole and the bottom end of the spring are fixedly connected. A screw is provided on the inner surface of the threaded hole, and the inner surface of the threaded hole and the outer surface of the spring are threadedly connected.

[0013] Preferably, the outer surface of the bottom end of the bottom ring is fixedly connected to the inner surface of the top end of the spring, and a slide is provided on the inner surface of the bottom ring. The inner surface of the bottom ring and the outer surface of the bottom end of the slide are fixedly connected, and a positioning column is provided on the inner surface of the slide. The inner surface of the slide and the outer surface of the positioning column are slidably connected, and a limiting groove is provided on the side end of the positioning column, and a limiting plate is provided on the inner surface of the slide. The inner surface of the slide and the side surface of the limiting plate are fixedly connected, and the outer surface of the limiting plate and the inner surface of the limiting groove are slidably connected.

[0014] Preferably, the inner surface of the bottom end of the nut abuts against the outer surface of the top end of the pressure plate, a screw is provided at the bottom end of the nut, the bottom end of the nut and the top end of the screw are fixedly connected, and a positioning groove is provided inside the nut. The inner surface of the positioning groove abuts against the outer surface of the positioning plate, and a circular groove is provided inside the screw, and the inner diameter of the circular groove is greater than the diameter of the slide plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Put the packing into the packing groove, install the packing gland on the base, put the packing ring on the top of the packing groove, compact the packing with the packing ring, insert the support plate into the support groove, place the pressure plate on the pressure groove, and the packing gland realizes the installation of the packing ring. At the same time, the packing gland performs secondary sealing on the base, the support plate strengthens the stability of the packing gland structure, the support plate ensures the stability of the packing gland structure, and only the fixing plate can realize the effect of fixing the packing gland, thereby realizing the effect of facilitating the installation of the packing gland, move the slide plate downward, control the nut, and install the screw on the screw In the threaded hole, when the screw enters the threaded hole, the slide plate is released, and the slide plate drives the positioning plate to be held in the positioning groove. The positioning plate realizes the function of positioning the nut to prevent the nut from rotating due to vibration, thereby ensuring that the packing pressure ring will not loosen. When the slide plate is released, the spring holds the bottom ring to move upward, and the bottom ring drives the slide plate to move upward. The limit plate on the slide plate slides along the limit groove. The limit plate realizes the function of limiting the slide plate, ensuring the sliding stability of the slide plate, thereby ensuring the stability of the positioning plate structure, and the spring realizes the function of holding the slide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a half-section view of the main structure of the utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 4 This is a schematic diagram of the support slot position in this application;

[0021] Figure 5 This is a schematic diagram of the screw position in this application;

[0022] Figure 6 This is a schematic diagram of the position of the practical limiting plate.

[0023] In the figure: valve body 1, base 2, packing gland 3, valve stem 4, nut 5, pressure plate 6, packing groove 7, packing pressure ring 8, threaded hole 9, positioning column 10, spring 11, screw 12, bottom ring 13, slide plate 14, pressure groove 15, positioning plate 16, limiting plate 17, positioning groove 18, support groove 19, circular groove 20, support plate 21, limiting groove 22, support groove 23, support plate 24. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0028] See also Figure 1-6 The utility model provides the following three preferred embodiments: A regulating valve for molten salt for photothermal power generation with a quick connection structure, the regulating valve for molten salt for photothermal power generation with a quick connection structure comprises:

[0029] A base 2, a valve body 1 and a packing gland 3 are provided on the surface of the base 2, a packing groove 7 and a threaded hole 9 are provided in the base 2, a pressure groove 15 and a branch groove 19 are provided on the surface of the base 2, and a pressure plate 6 and a packing pressure ring 8 are provided on the surface of the packing gland 3;

[0030] A threaded hole 9, a positioning column 10 and a spring 11 are provided on the surface of the threaded hole 9, a bottom ring 13 is provided on the surface of the spring 11, a slide plate 14 is provided on the surface of the bottom ring 13, and a positioning plate 16 and a limit plate 17 are provided on the surface of the slide plate 14; and

[0031] A nut 5, a pressing plate 6 and a screw 12 are provided on the surface of the nut 5, a positioning groove 18 is provided in the nut 5, and a circular groove 20 is provided in the screw 12;

[0032] Embodiment 1

[0033] In order to improve the use effect of the packing gland 3, a valve body 1 is provided on the outer surface of the bottom of the base 2, the outer surface of the bottom of the base 2 and the inner surface of the top of the valve body 1 are fixedly connected, a plurality of branch grooves 19 are provided on the outer surface of the top of the base 2, a packing groove 7 is provided on the inner surface of the base 2, a valve stem 4 is provided on the inner surface of the base 2, the inner surface of the base 2 and the outer surface of the valve stem 4 are slidably connected, a threaded hole 9 is provided inside the side end of the base 2, a packing gland 3 is provided on the outer surface of the top of the base 2, a pressure groove 15 is provided on the outer surface of the top of the base 2, the inner surface of the bottom end of the packing gland 3 and the outer surface of the top end of the base 2 are abutted, a support plate 21 is provided on the outer surface of the bottom end of the packing gland 3, the outer surface of the bottom end of the packing gland 3 and the inner surface of the top end of the support plate 21 are fixedly connected, and the outer surface of the support plate 21 and the inner surface of the branch groove 19 are slidably connected, and a packing pressing ring 8 is provided on the bottom end of the packing gland 3, the bottom end of the packing gland 3 and the top of the packing pressing ring 8 are fixedly connected, and the outer surface of the packing pressing ring 8 and the inner surface of the packing groove 7 are slidably connected. The packing gland 3 is connected, and a pressure plate 6 is provided at the bottom end of the packing gland 3, the bottom end of the packing gland 3 and the top end of the pressure plate 6 are fixedly connected, and the bottom surface of the pressure plate 6 and the bottom surface of the pressure groove 15 are abutted, and a support plate 24 is provided at the bottom end of the packing gland 3, and a support groove 23 is opened on the surface of the base 2, and the outer surface of the support plate 24 and the inner surface of the support groove 23 are abutted; put the packing into the packing groove 7, install the packing gland 3 on the base 2, put the packing pressure ring 8 on the top end of the packing groove 7, and the packing pressure ring 8 compacts the packing, and the packing gland 3 inserts the support plate 21 into the support groove 19, and the pressure plate 6 is placed on the pressure groove 15, and the packing gland 3 realizes the function of installing the packing pressure ring 8. At the same time, the packing gland 3 performs secondary sealing on the base 2, the support plate 21 strengthens the stability of the packing gland 3 structure, and the support plate 24 ensures the stability of the packing gland 3 structure. Only the fixing pressure plate 6 can realize the effect of fixing the packing gland 3, thereby realizing the effect of facilitating the installation of the packing gland 3.

[0034] Embodiment 2

[0035] On the basis of the first embodiment, in order to improve the use effect of the positioning plate 16, a positioning column 10 is provided on the bottom surface of the threaded hole 9, the bottom surface of the threaded hole 9 and the bottom end of the positioning column 10 are fixedly connected, a spring 11 is provided on the bottom surface of the threaded hole 9, the bottom surface of the threaded hole 9 and the bottom end of the spring 11 are fixedly connected, a screw 12 is provided on the inner surface of the threaded hole 9, the inner surface of the threaded hole 9 and the outer surface of the spring 11 are threadedly connected, the inner surface of the bottom end of the nut 5 and the outer surface of the top end of the pressure plate 6 are abutted, a screw 12 is provided on the bottom end of the nut 5, the bottom end of the nut 5 and the top end of the screw 12 are fixedly connected, and a positioning The inner surface of the positioning groove 18 and the outer surface of the positioning plate 16 are against each other, and a circular groove 20 is opened inside the screw 12, and the inner diameter of the circular groove 20 is larger than the diameter of the slide plate 14; the slide plate 14 is moved downward to control the nut 5 and install the screw 12 in the threaded hole 9. When the screw 12 enters the threaded hole 9, the slide plate 14 is released, and the slide plate 14 drives the positioning plate 16 to be held in the positioning groove 18. The positioning plate 16 realizes the function of positioning the nut 5, avoiding the phenomenon that the nut 5 rotates due to vibration, thereby ensuring that the packing ring 8 will not loosen.

[0036] Embodiment 3

[0037] On the basis of the second embodiment, in order to improve the use effect of the limit plate 14, the outer surface of the bottom end of the bottom ring 13 and the inner surface of the top end of the spring 11 are fixedly connected, and a slide plate 14 is provided on the inner surface of the bottom ring 13. The inner surface of the bottom ring 13 and the outer surface of the bottom end of the slide plate 14 are fixedly connected, and a positioning column 10 is provided on the inner surface of the slide plate 14. The inner surface of the slide plate 14 and the outer surface of the positioning column 10 are slidably connected, and a limiting groove 22 is provided on the side end of the positioning column 10, and a limiting plate 17 is provided on the inner surface of the slide plate 14. The inner surface of the slide plate 14 and the limiting plate The side surface of 17 is fixedly connected, and the outer surface of the limit plate 17 and the inner surface of the limit groove 22 are slidably connected; when the slide plate 14 is loosened, the spring 11 supports the bottom ring 13 to move upward, and the bottom ring 13 drives the slide plate 14 to move upward, and the limit plate 17 on the slide plate 14 slides along the limit groove 22. The limit plate 17 realizes the function of limiting the slide plate 14, ensuring the sliding stability of the slide plate 14, thereby ensuring the stability of the positioning plate 16 structure, and the spring 11 realizes the function of supporting the slide plate 14.

[0038] Put the packing into the packing groove 7, install the packing gland 3 on the base 2, put the packing ring 8 on the top of the packing groove 7, and compact the packing with the packing ring 8. The packing gland 3 inserts the support plate 21 into the support groove 19, and the pressure plate 6 is placed on the pressure groove 15. The packing gland 3 realizes the installation of the packing ring 8. At the same time, the packing gland 3 performs secondary sealing on the base 2. The support plate 21 strengthens the stability of the packing gland 3 structure, and the support plate 24 ensures the stability of the packing gland 3 structure. Only the fixing plate 6 can realize the effect of fixing the packing gland 3, thereby realizing the effect of facilitating the installation of the packing gland 3. Move the slide plate 14 downward, control the nut 5, and install the screw 12 in the threaded hole 9. When the screw When the rod 12 enters the threaded hole 9, the slide plate 14 is released, and the slide plate 14 drives the positioning plate 16 to be held in the positioning groove 18. The positioning plate 16 realizes the function of positioning the nut 5 to prevent the nut 5 from rotating due to vibration, thereby ensuring that the packing pressure ring 8 will not loosen. When the slide plate 14 is released, the spring 11 holds the bottom ring 13 to move upward, and the bottom ring 13 drives the slide plate 14 to move upward. The limiting plate 17 on the slide plate 14 slides along the limiting groove 22. The limiting plate 17 realizes the function of limiting the slide plate 14, ensuring the sliding stability of the slide plate 14, thereby ensuring the stability of the positioning plate 16 structure, and the spring 11 realizes the function of holding the slide plate 14.

[0039] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A regulating valve for molten salt for solar thermal power generation with a quick connection structure, characterized in that: The solar thermal power generation molten salt regulating valve with a quick connection structure comprises: A base (2), wherein a valve body (1) and a packing gland (3) are provided on the surface of the base (2), a packing groove (7) and a threaded hole (9) are provided in the base (2), a pressure groove (15) and a branch groove (19) are provided on the surface of the base (2), and a pressure plate (6) and a packing pressure ring (8) are provided on the surface of the packing gland (3); A threaded hole (9), wherein a positioning column (10) and a spring (11) are provided on the surface of the threaded hole (9), a bottom ring (13) is provided on the surface of the spring (11), a slide plate (14) is provided on the surface of the bottom ring (13), and a positioning plate (16) and a limit plate (17) are provided on the surface of the slide plate (14); and A nut (5) is provided with a pressing plate (6) and a screw rod (12) on its surface, a positioning groove (18) is provided in the nut (5), and a circular groove (20) is provided in the screw rod (12).

2. A regulating valve for molten salt for solar thermal power generation with a quick connection structure according to claim 1, characterized in that: The bottom outer surface of the base (2) is provided with a valve body (1), the bottom outer surface of the base (2) is fixedly connected to the top inner surface of the valve body (1), the top outer surface of the base (2) is provided with a plurality of branch grooves (19), the inner surface of the base (2) is provided with a packing groove (7), the inner surface of the base (2) is provided with a valve stem (4), the inner surface of the base (2) and the outer surface of the valve stem (4) are slidably connected, a threaded hole (9) is provided inside the side end of the base (2), a packing gland (3) is provided on the top outer surface of the base (2), and a pressure groove (15) is provided on the top outer surface of the base (2).

3. A control valve for molten salt for solar thermal power generation with a quick connection structure according to claim 2, characterized in that: The inner surface of the bottom end of the packing gland (3) and the outer surface of the top end of the base (2) are in contact with each other, and a support plate (21) is provided on the outer surface of the bottom end of the packing gland (3). The outer surface of the bottom end of the packing gland (3) and the inner surface of the top end of the support plate (21) are fixedly connected, and the outer surface of the support plate (21) and the inner surface of the support groove (19) are slidably connected. A packing ring (8) is provided on the bottom end of the packing gland (3). The bottom end of the packing gland (3) and the top end of the packing ring (8) are fixedly connected. The outer surface of the packing pressure ring (8) and the inner surface of the packing groove (7) are slidably connected, and a pressure plate (6) is provided at the bottom end of the packing pressure cover (3), the bottom end of the packing pressure cover (3) and the top end of the pressure plate (6) are fixedly connected, and the bottom surface of the pressure plate (6) and the bottom surface of the pressure groove (15) are in contact with each other, and a support plate (24) is provided at the bottom end of the packing pressure cover (3), and a support groove (23) is provided on the surface of the base (2), and the outer surface of the support plate (24) and the inner surface of the support groove (23) are in contact with each other.

4. A regulating valve for molten salt for solar thermal power generation with a quick connection structure according to claim 2, characterized in that: The bottom surface of the threaded hole (9) is provided with a positioning column (10), the bottom surface of the threaded hole (9) and the bottom end of the positioning column (10) are fixedly connected, the bottom surface of the threaded hole (9) is provided with a spring (11), the bottom surface of the threaded hole (9) and the bottom end of the spring (11) are fixedly connected, and the inner surface of the threaded hole (9) is provided with a screw (12), the inner surface of the threaded hole (9) and the outer surface of the spring (11) are threadedly connected.

5. A regulating valve for molten salt for solar thermal power generation with a quick connection structure according to claim 1, characterized in that: The outer surface of the bottom end of the bottom ring (13) is fixedly connected to the inner surface of the top end of the spring (11); a slide plate (14) is provided on the inner surface of the bottom ring (13); the inner surface of the bottom ring (13) is fixedly connected to the outer surface of the bottom end of the slide plate (14); a positioning column (10) is provided on the inner surface of the slide plate (14); the inner surface of the slide plate (14) is slidably connected to the outer surface of the positioning column (10); a limiting groove (22) is provided at the side end of the positioning column (10); a limiting plate (17) is provided on the inner surface of the slide plate (14); the inner surface of the slide plate (14) is fixedly connected to the side surface of the limiting plate (17); and the outer surface of the limiting plate (17) is slidably connected to the inner surface of the limiting groove (22).

6. A regulating valve for molten salt for solar thermal power generation with a quick connection structure according to claim 1, characterized in that: The inner surface of the bottom end of the nut (5) and the outer surface of the top end of the pressure plate (6) are in contact with each other, a screw rod (12) is provided at the bottom end of the nut (5), the bottom end of the nut (5) and the top end of the screw rod (12) are fixedly connected, and a positioning groove (18) is provided inside the nut (5). The inner surface of the positioning groove (18) and the outer surface of the positioning plate (16) are in contact with each other, and a circular groove (20) is provided inside the screw rod (12), and the inner diameter of the circular groove (20) is greater than the diameter of the slide plate (14).

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