Drain valve and fluidized bed comprising same

Abstract

The utility model provides a drain valve and a fluidized bed comprising the drain valve, which solve the problems of blockage, water accumulation and the like in a direct connection type reflux condensation mode of a tail end loop of an existing drying bed, and mainly comprise a valve body, a valve core and a valve cover, the inside of the valve body is a cavity, and the top of the valve body is sealed with a bolt of the valve cover; the two ends of the valve body are open, a Z-shaped liquid inlet and a Z-shaped liquid outlet are inwards formed in the two ends of the valve body respectively, the liquid inlet communicates with the inner bottom of the valve body, a filter screen is correspondingly fixed to the liquid inlet, a vertical on-off opening is formed in the position, corresponding to the top of the filter screen, of the inner bottom of the valve body, and the valve element comprises a positioning table, a lifting table, a connecting block and a buffering box. The interior of the buffer box is hollowed out, the center of the bottom end of the buffer box is movably sealed with the on-off opening through a connector pipe, the top end of the positioning table is fixed to the inner top of the valve deck through a bolt, the bottom end of the positioning table is provided with a groove, the inner wall of the groove is in threaded fit with the lifting table, and the top of an inner cavity of the valve body communicates with the liquid outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of salt-making processes, and particularly relates to a steam trap and a fluidized bed comprising the same. Background Art

[0002] Salt making refers to the production process of separating salts from seawater or underground brine, and finally obtaining pure edible salt or industrial salt through processes such as evaporation concentration and crystallization precipitation. The salt-making process mainly includes links such as raw material collection, purification treatment, evaporation concentration, crystallization precipitation, and refining.

[0003] For the fluidized bed used in the salt-making process, it generally consists of multiple drying beds. However, at the end of the liquid circuit of the existing drying beds, they are directly connected to the external condensation pipeline. When multiple drying beds operate simultaneously, problems such as liquid accumulation and blockage are inevitable, and the liquid flow rate corresponding to the reflux condensation cannot be controlled, which is rather inconvenient. Therefore, we propose a steam trap and a fluidized bed comprising the same to solve the above problems. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defects existing in the prior art. The utility model proposes a steam trap and a fluidized bed comprising the same.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a steam trap, comprising: a valve body, a valve core, and a valve cover. The interior of the valve body is a cavity, and the top is bolt-sealed with the valve cover. Both ends of the valve body are open and are respectively internally provided with a Z-type liquid inlet and a liquid outlet. The liquid inlet communicates with the inner bottom of the valve body and is correspondingly fixed with a filter screen. A vertical on-off port is opened at the top of the inner bottom of the valve body corresponding to the filter screen. The valve core includes a positioning table, a lifting table, a connecting block, and a buffer box. The interior of the buffer box is hollow, and the center of the bottom end is movably sealed with the on-off port through an interface pipe. The top end of the positioning table is bolt-fixed to the inner top of the valve cover, and the bottom end is provided with a groove, and the inner wall of the groove is in threaded cooperation with the lifting table. The bottom end of the lifting table is fixedly connected to the center of the top of the buffer box through the connecting block. The top of the inner cavity of the valve body is communicated with the liquid outlet.

[0006] Further, the filter screen is horizontally arranged and communicates with the outer wall of the valve body. One end exposed outside the valve body is bolt-fixed and internally embedded with a first sealing soft rubber.

[0007] Further, the liquid outlet is spliced and communicated in two sections, and it includes a first flow channel and a second flow channel respectively opened on the inner walls of the valve body and the valve cover. The first flow channel is a horizontal hole-shaped structure corresponding to the top of the valve cover, and an inwardly concave mating port is communicated at the bottom of the hole-shaped structure. The top of the positioning table is bolt-fixed to the mating port.

[0008] Furthermore, the top of the lifting platform is rotatably connected to the valve cover through a coupling shaft, and a turntable is fixedly exposed.

[0009] Furthermore, the length of the threaded section on the inner wall of the grooved opening corresponds to the height of the on-off port.

[0010] Furthermore, both ends of the on-off port are of a T-shaped platform structure, and the outer wall of the interface pipe is in extrusion contact with the on-off port.

[0011] Furthermore, the connection between the first flow channel and the second flow channel is sealed by a second sealing soft rubber.

[0012] Furthermore, coaxial connection flanges are fixedly provided at the ends of the corresponding liquid inlet and liquid outlet of the valve body.

[0013] A fluidized bed includes the steam trap described in any one of the above. A plurality of drying beds with the same flow direction are arranged on the fluidized bed, and the end loop of each drying bed is connected to the outside through the steam trap for condensation reflux.

[0014] Compared with the prior art, the beneficial effects of the present utility model include: through the threaded rotation positioning of the lifting platform on the inner wall of the grooved opening at the bottom of the positioning platform, the sealing closure between the bottom interface pipe and the on-off port can be realized, which is practical and convenient. Meanwhile, steam traps with corresponding structures are added at the end of each drying bed loop of the fluidized bed, effectively ensuring the dredging of the subsequent reflux condensate liquid and avoiding the overflow or blockage problems brought by the past direct connection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The disclosure of the present utility model will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the protection scope of the present utility model. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0016] Figure 1 Schematically shows a schematic diagram of the internal structure of the steam trap proposed according to an embodiment of the present utility model;

[0017] Figure 2 Schematically shows a schematic diagram of the overall structure of the steam trap proposed according to an embodiment of the present utility model;

[0018] Figure 3 Schematically shows a corresponding process flow diagram of the fluidized bed proposed according to an embodiment of the present utility model.

[0019] Reference numerals in the figure: 1, filter screen; 2, valve body; 3, valve core; 4, valve cover; 5, liquid outlet; 6, liquid outlet; 7, on-off port; 8, positioning table; 9, lifting table; 10, connecting block; 11, buffer tank; 12, interface pipe; 13, slot; 14, first sealing soft rubber; 15, first flow channel; 16, second flow channel; 17, mating port; 18, coupling shaft; 19, turntable; 20, second sealing soft rubber; 21, connecting flange; 22, drying bed. Detailed implementation manners

[0020] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, those of ordinary skill in the art can propose various interchangeable structural forms and implementation manners. Therefore, the following detailed implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as all of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0021] According to an embodiment of the present invention, it is combined with Figures 1-3 shown as follows.

[0022] As Figure 3 shown, for a fluidized bed, a plurality of drying beds 22 with the same flow direction are provided thereon. In the existing process scheme, generally, the end loop of the drying bed 22 is directly connected to the external condensate loop for collection. However, this method has two problems. One is that the flow rate cannot be controlled, and the other is that blockage and siltation are likely to occur at the end of the drying bed 22 in the long term. Therefore, in the present invention, the end loop of each drying bed 22 is connected to the outside through the steam trap for condensate reflux. Thus, the flow rate control of the liquid loop of each drying bed 22 is fundamentally realized, which is practical and reliable.

[0023] Furthermore, to ensure that the sealing requirements and hydrophobicity in the loop meet the requirements, the present application also has requirements for the structure of the valve body 2, as Figure 1 and Figure 2As shown in the figure, for the valve body 2, a steam trap includes: a valve body 2, a valve core 3, and a valve cover 4. The inside of the valve body 2 is a cavity, and the top is bolt-sealed with the valve cover 4. Both ends of the valve body 2 are open and each has an inwardly opened Z-shaped liquid inlet and a liquid outlet 6. The liquid inlet is connected to the inner bottom of the valve body 2 and is correspondingly fixed with a filter net 1. A vertical on-off port 7 is opened at the top of the inner bottom of the valve body 2 corresponding to the filter net 1. The valve core 3 includes a positioning table 8, a lifting table 9, a connecting block 10, and a buffer box 11. The inside of the buffer box 11 is hollow, and the center of the bottom end is movably sealed with the on-off port 7 through an interface pipe 12. The top end of the positioning table 8 is bolt-fixed to the inner top of the valve cover 4, and the bottom end is a groove 13, and the inner wall of the groove 13 is threadedly engaged with the lifting table 9. The bottom end of the lifting table 9 is fixedly connected to the center of the top of the buffer box 11 through the connecting block 10. The top of the inner cavity of the valve body 2 is communicated with the liquid outlet 6.

[0024] Further, the filter net 1 is horizontally arranged and communicated with the outer wall of the valve body 2, and a first sealing soft rubber 14 is bolt-fixed and embedded at one end exposed outside the valve body 2.

[0025] Further, the liquid outlet 6 is connected by splicing in two sections, and it includes a first flow channel 15 and a second flow channel 16 respectively opened on the inner walls of the valve body 2 and the valve cover 4. The first flow channel 15 is a horizontal hole-shaped structure corresponding to the top of the valve cover 4, and an inwardly concave matching port 17 is communicated at the bottom of the hole-shaped structure. The top of the positioning table 8 is bolt-fixed to the matching port 17.

[0026] Further, the top of the lifting table 9 is rotatably connected to the valve cover 4 through a connecting shaft 18, and a turntable 19 is fixedly exposed. The length of the threaded section on the inner wall of the groove 13 corresponds to the height of the on-off port 7. Both ends of the on-off port 7 are T-shaped platform structures, and the outer wall of the interface pipe 12 is in extrusion contact with the on-off port. The connection between the first flow channel 15 and the second flow channel 16 is sealed by a second sealing soft rubber 20. The valve body 2 is fixedly provided with coaxial connecting flanges 21 at the ends corresponding to the liquid inlet and the liquid outlet 6.

[0027] Through the above structural description, when realizing the on-off of the end loop of the corresponding drying bed 22, the present invention can rotate the external turntable 19 to realize the rotational positioning of the lifting table 9 on the inner wall of the groove 13 at the bottom of the positioning table 8. After the height of the lifting table 9 is misaligned, it synchronously drives the interface pipe 12 at the bottom end to close with the on-off port at the bottom end of the valve body 2. The length of the corresponding threaded end corresponds to the wall thickness of the on-off port 7. The design of the T-shaped platform also ensures the sealing of the over-matching between the interface pipe 12 and the on-off port. Similarly, by adding a steam trap with the above structure at the end of each drying bed 22 in the fluidized bed, the flow control of the end water circuit can be realized in a timely and reliable manner, and situations such as liquid overflow or blockage can be avoided.

[0028] The technical scope of the present utility model is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present utility model, and these deformations and modifications should all fall within the protection scope of the present utility model.

Claims

1. A steam trap, characterized in that: include: A valve body, a valve core and a valve cover, wherein the valve body is hollow and the top is sealed with the valve cover bolts, the valve body is open at both ends and each has a Z-shaped liquid inlet and liquid outlet inwardly, the liquid inlet is connected to the bottom of the valve body and a filter screen is fixed thereto correspondingly, the bottom of the valve body is provided with a vertical on-off port at the top of the corresponding filter screen, the valve core comprises a positioning platform, a lifting platform, a connecting block and a buffer box, the interior of the buffer box is hollow and the center of the bottom end is movably sealed with the on-off port through an interface pipe, the top bolt of the positioning platform is fixed to the inner top of the valve cover, the bottom end of the positioning platform is slotted and the inner wall of the slot is threadedly matched with the lifting platform, the bottom end of the lifting platform is fixedly connected to the center of the top of the buffer box through a connecting block, and the top of the valve body cavity is connected to the liquid outlet.

2. A steam trap according to claim 1, characterized in that: The filter screen is arranged transversely and communicated with the outer wall of the valve body. The filter screen is fixed with bolts at one end exposed to the valve body and is embedded with a first sealing soft rubber.

3. A steam trap according to claim 1, characterized in that: The liquid outlet is connected by two sections connected by splicing, and includes a first flow channel and a second flow channel which are respectively opened on the valve body and the inner wall of the valve cover. The first flow channel corresponds to a horizontal and transverse hole structure at the top of the valve cover, and is connected to an inner concave matching port at the bottom of the hole structure. The top of the positioning platform is fixed with bolts to the matching port.

4. A steam trap according to claim 1, characterized in that: The top of the lifting platform is rotatably connected to the valve cover through a connecting shaft, and a turntable is exposed and fixed thereon.

5. A steam trap according to claim 1, characterized in that: The length of the threaded section of the inner wall of the slot corresponds to the height of the on-off opening.

6. A steam trap according to claim 1, characterized in that: Both ends of the on-off opening are T-shaped platform structures, and the outer wall of the interface pipe is in extrusion contact with the on-off opening.

7. A steam trap according to claim 3, characterized in that: The connection between the first flow channel and the second flow channel is sealed by a second sealing soft glue.

8. The steam trap according to claim 1, characterized in that: The valve body is fixed with coaxial connecting flanges at the ends of the corresponding liquid inlet and liquid outlet.

9. A fluidized bed, characterized in that: The invention comprises the steam trap according to any one of claims 1 to 8, wherein a plurality of drying beds with the same flow direction are arranged on the fluidized bed, and the terminal circuit of each drying bed is connected to the outside through the steam trap for condensation reflux.

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