Black water regulating valve with good sealing performance

Abstract

The utility model belongs to the technical field of black water regulating valves, and particularly relates to a black water regulating valve with good sealing performance, which comprises a valve body, a water inlet pipe is fixedly mounted on one side of the valve body, the bottom of the valve body is fixedly connected with a mounting seat through a plurality of bolts, and the top of the valve body is fixedly connected with an upper cover through a plurality of bolts. A same valve rod is installed in the upper cover and the valve body in a sliding mode, a valve element is fixedly installed at the bottom of the valve rod, a valve seat is fixedly installed at the bottom of the valve body, the valve further comprises a fixing column, the fixing column is fixedly installed on the valve rod and located on the top of the valve element, and a sliding groove is formed in the fixing column. The baffle is arranged on the valve element, it is ensured that the valve element can be located in the baffle in the upward or downward displacement process of the valve element, the baffle can block high-speed fluid, the valve element is effectively prevented from being scoured by the high-speed fluid, the multiple sealing effect on the valve seat can be achieved, the sealing effect is better, and the situation that water leaks between the valve element and the valve seat is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of black water regulating valves, and in particular relates to a black water regulating valve with good sealing performance. Background Technology

[0002] A black water regulating valve is a special valve used to treat black water (a process medium containing a large amount of solid particles, tar, ash, and other impurities in industrial processes such as coal chemical industry). Its main function is to precisely control the flow rate, pressure, and other process parameters of the black water.

[0003] For example, Chinese patent CN217784225U discloses a black water regulating valve. In this application, a top cover is fixedly connected to the top of the valve body by preset bolts. A hole is provided in the middle of the top cover, and a valve stem is slidably connected inside the hole. A valve core is fixedly connected to the bottom of the valve stem. A valve seat is fixedly connected to the bottom of the valve body. A fixing base is fixedly installed on the lower surface of the valve stem by preset bolts. A scraper is welded to the bottom of the fixing base. A fixing cylinder is welded to the lower surface of the scraper. A reducing cylinder is welded to the bottom of the fixing cylinder. An installation sleeve is welded to the bottom of the reducing cylinder. An annular scraper is fixedly connected inside the installation sleeve. The annular scraper scrapes off the solid particles adhering to the outer wall of the valve core and the valve stem, minimizing damage caused by friction between the solid particles and the top cover and valve seat, and improving the service life of the device.

[0004] The aforementioned patent has the following problems:

[0005] This patented device has several drawbacks in use. For example, when the valve stem moves the valve core downwards to block the valve seat, the high-speed fluid can still scour the valve core as it moves below the drain seat, potentially damaging it. Furthermore, since the device only seals the valve seat with a single valve core, wear is inevitable during use, resulting in insufficient sealing between the valve core and seat and increasing the risk of leakage. Therefore, we propose a black water regulating valve with improved sealing performance. Utility Model Content

[0006] The purpose of this invention is to provide a black water regulating valve with good sealing performance to solve the problems mentioned in the background art.

[0007] In view of this, the present invention provides a black water regulating valve with good sealing performance, including a valve body, an inlet pipe fixedly installed on one side of the valve body, a mounting base fixedly connected to the bottom of the valve body by several bolts, a top cover fixedly connected to the top of the valve body by several bolts, a valve stem slidably installed on the top cover and the valve body, a valve core fixedly installed at the bottom of the valve stem, and a valve seat fixedly installed at the bottom of the valve body, and further comprising:

[0008] A fixed column is fixedly installed on the valve stem and located at the top of the valve core. A sliding groove is opened in the fixed column, and a baffle is slidably installed in the sliding groove. Several springs fixed to the inner wall of the sliding groove are fixedly installed on the top of the baffle, and a sealing ring is fixedly installed on the bottom of the baffle. Several annular grooves are opened on the inner wall of the valve seat, and the valve core extends into the valve seat. An annular rubber ring fixed to the valve core is provided in the annular groove.

[0009] The groove is located on the top of the valve body, and a sealing ring fixed to the upper cover is provided in the groove. The lower end of the valve seat extends into the mounting base.

[0010] In this technical solution, when the valve stem moves upward, it will drive the fixed column and valve core to move upward. Subsequently, the valve core will drive several annular rubber rings to move upward. During the displacement process, the annular rubber rings will deform until the valve core, along with several annular rubber rings, is completely displaced from the corresponding annular groove. At the same time, under the action of the rebound force of several springs, several springs will push against the baffle and move downward in the slide groove. The baffle will surround the valve core, so that the valve core and several annular rubber rings are completely located within the baffle, effectively preventing the valve core from being scoured by high-speed fluid. Meanwhile, during the upward displacement of the valve stem, the circumferential sidewall of the valve stem will contact the scraper, and the scraper will scrape off the solid particles on the outer wall of the valve stem, thereby opening the valve seat.

[0011] When the valve stem moves downward, it will cause the fixed column and valve core to move downward. At this time, the valve core is located inside the baffle, which can block the scouring of high-speed fluid. Subsequently, the valve core will enter the valve seat. The sealing ring 2 at the bottom of the baffle will contact the top of the valve seat. The baffle will be squeezed and move upward in the groove. Several springs at the top of the baffle will be squeezed and contract. At this time, the valve stem continues to move downward until several annular rubber rings on the valve core enter several annular grooves. With the cooperation of several annular rubber rings, several annular grooves and sealing ring 2, a multi-seal effect is achieved, ensuring that the valve core can completely seal the valve seat. The sealing effect is better. In addition, under the action of sealing ring 1, the sealing between the top cover and the valve body can be improved.

[0012] In the above technical solution, the bottom of the second sealing ring is in close contact with the top of the valve seat.

[0013] In this technical solution, it is ensured that the second sealing ring can make tight contact with the top of the valve seat, thus providing a preliminary seal to the valve seat.

[0014] In the above technical solution, the valve core and the valve seat are further fitted together.

[0015] In this technical solution, it is ensured that the valve core can be inserted into the valve seat.

[0016] In the above technical solution, the annular rubber ring is further inserted into the annular groove, and the annular rubber ring is tightly fitted to the inner wall of the annular groove.

[0017] In this technical solution, it is ensured that the annular rubber ring can be inserted into the annular groove, and that the annular rubber ring can fit tightly against the inner wall of the annular groove, thereby achieving a more secure seal.

[0018] In the above technical solution, the sealing ring is further fitted into the groove.

[0019] In this technical solution, it is ensured that the sealing ring can be inserted into the groove.

[0020] In the above technical solution, a scraper is further fixedly installed on the inner wall of the valve body and on the valve stem. The scraper is located above the fixed column, and the scraper contacts the circumferential side wall of the valve stem. The valve stem and the scraper are slidably connected.

[0021] In this technical solution, during the upward displacement of the valve stem, the circumferential sidewall of the valve stem will come into contact with the scraper, and the scraper will scrape off the solid particles on the outer wall of the valve stem.

[0022] The beneficial effects of this utility model are:

[0023] 1. This well-sealed black water regulating valve, through the cooperation of the fixed column, slide groove, baffle and spring, ensures that the valve core can be located inside the baffle during the upward or downward displacement process, so that the baffle can block the high-speed fluid and effectively prevent the valve core from being washed by the high-speed fluid.

[0024] 2. This black water regulating valve with good sealing performance ensures a multi-layer sealing effect on the valve seat through the cooperation of the two sealing rings, several annular rubber rings and several annular grooves. The sealing effect is better and avoids water leakage between the valve core and the valve seat. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the valve body in this utility model;

[0027] Figure 3 This is a cross-sectional structural diagram of the valve body in this utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of the fixed column in this utility model;

[0029] Figure 5 This is a cross-sectional structural diagram of the fixed column in this utility model;

[0030] Figure 6 This is a cross-sectional structural diagram of the baffle in this utility model;

[0031] Figure 7 This is a schematic diagram of the regional structure of the valve core in this utility model;

[0032] Figure 8 This is a cross-sectional structural diagram of the valve seat in this utility model.

[0033] The markings in the diagram are as follows:

[0034] 1. Valve body; 2. Inlet pipe; 3. Mounting base; 4. Top cover; 5. Valve stem; 6. Sealing ring one; 7. Scraper; 8. Fixing post; 9. Annular groove; 10. Valve seat; 11. Groove; 12. Baffle; 13. Spring; 14. Valve core; 15. Annular rubber ring; 16. Slide groove; 17. Sealing ring two. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0037] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0039] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Example

[0040] Please see Figure 1 - Figure 8As shown, this embodiment provides a black water regulating valve with good sealing performance, including a valve body 1, an inlet pipe 2 fixedly installed on one side of the valve body 1, a mounting base 3 fixedly connected to the bottom of the valve body 1 by several bolts, a top cover 4 fixedly connected to the top of the valve body 1 by several bolts, a valve stem 5 slidably installed on the top cover 4 and the same valve body 1, a valve core 14 fixedly installed at the bottom of the valve stem 5, and a valve seat 10 fixedly installed at the bottom of the valve body 1, and also including:

[0041] A fixed column 8 is fixedly installed on the valve stem 5 and located at the top of the valve core 14. A sliding groove 16 is provided inside the fixed column 8. A baffle 12 is slidably installed inside the sliding groove 16. Several springs 13 fixed to the inner wall of the sliding groove 16 are fixedly installed on the top of the baffle 12. A sealing ring 17 is fixedly installed on the bottom of the baffle 12. Several annular grooves 9 are provided on the inner wall of the valve seat 10. The valve core 14 extends into the valve seat 10. An annular rubber ring 15 fixed to the valve core 14 is provided in the annular groove 9.

[0042] The groove 11 is located on the top of the valve body 1. A sealing ring 6, which is fixed to the upper cover 4, is provided in the groove 11. The lower end of the valve seat 10 extends into the mounting base 3.

[0043] When the valve stem 5 moves upward, it will drive the fixed column 8 and the valve core 14 to move upward. Subsequently, the valve core 14 will drive several annular rubber rings 15 to move upward. During the displacement, the annular rubber rings 15 will deform until the valve core 14, along with several annular rubber rings 15, is completely displaced from the corresponding annular groove 9. At the same time, under the rebound force of several springs 13, several springs 13 will push against the baffle 12 and move downward in the slide groove 16. The baffle 12 will surround the valve core 14, so that the valve core 14 and several annular rubber rings 15 are completely located within the baffle 12, effectively preventing the valve core 14 from being scoured by high-speed fluid. At the same time, during the upward displacement of the valve stem 5, the circumferential side wall of the valve stem 5 will contact the scraper 7. The scraper 7 will scrape off the solid particles on the outer wall of the valve stem 5, thereby opening the valve seat 10.

[0044] When the valve stem 5 moves downward, it will drive the fixed column 8 and the valve core 14 to move downward. At this time, the valve core 14 is located inside the baffle 12, which can block the scouring of high-speed fluid. Subsequently, the valve core 14 will enter the valve seat 10. The sealing ring 17 at the bottom of the baffle 12 will contact the top of the valve seat 10. The baffle 12 will be squeezed and move upward in the slide groove 16. The springs 13 at the top of the baffle 12 will be squeezed and contract. At this time, the valve stem 5 continues to move downward until the annular rubber rings 15 on the valve core 14 enter the annular grooves 9 respectively. With the cooperation of the annular rubber rings 15, the annular grooves 9 and the sealing ring 17, a multi-seal effect is achieved, ensuring that the valve core 14 can completely seal the valve seat 10. The sealing effect is better. In addition, under the action of the sealing ring 6, the sealing performance between the upper cover 4 and the valve body 1 can be improved. Example

[0045] This embodiment provides a black water regulating valve with good sealing performance. In addition to the technical solution of the above embodiment, it also has the following technical features: the bottom of the sealing ring 17 is in close contact with the top of the valve seat 10.

[0046] Specifically, this ensures that the sealing ring 17 can make tight contact with the top of the valve seat 10, thus providing an initial seal for the valve seat 10. Example

[0047] This embodiment provides a black water regulating valve with good sealing performance. In addition to the technical solution of the above embodiment, it also has the following technical features: the valve core 14 and the valve seat 10 are plugged into each other.

[0048] This ensures that the valve core 14 can be inserted into the valve seat 10. Example

[0049] This embodiment provides a black water regulating valve with good sealing performance. In addition to the technical solution of the above embodiment, it also has the following technical features: the annular rubber ring 15 is inserted into the annular groove 9, and the annular rubber ring 15 is tightly fitted to the inner wall of the annular groove 9.

[0050] Specifically, this ensures that the annular rubber ring 15 can be inserted into the annular groove 9, and that the annular rubber ring 15 can fit tightly against the inner wall of the annular groove 9, thereby achieving a more tight seal. Example

[0051] This embodiment provides a black water regulating valve with good sealing performance. In addition to the technical solution of the above embodiment, it also has the following technical features: the sealing ring 6 is inserted and matched with the groove 11.

[0052] Specifically, it is ensured that the sealing ring 6 can be inserted into the groove 11. Example

[0053] This embodiment provides a black water regulating valve with good sealing performance. In addition to the technical solution of the above embodiment, it also has the following technical features: a scraper 7 is fixedly installed on the inner wall of the valve body 1 and on the valve stem 5. The scraper 7 is located above the fixed column 8. The scraper 7 is in contact with the circumferential side wall of the valve stem 5. The valve stem 5 and the scraper 7 are slidably connected.

[0054] During the upward displacement of the valve stem 5, the circumferential sidewall of the valve stem 5 will come into contact with the scraper 7, and the scraper 7 will scrape off the solid particles on the outer wall of the valve stem 5.

[0055] Working principle: When the valve stem 5 moves upward, it will drive the fixed column 8 and the valve core 14 to move upward. Subsequently, the valve core 14 will drive several annular rubber rings 15 to move upward. During the displacement, the annular rubber rings 15 will deform until the valve core 14, along with several annular rubber rings 15, is completely displaced from the corresponding annular groove 9. At the same time, under the rebound force of several springs 13, several springs 13 will push against the baffle 12 and move downward in the slide groove 16. The baffle 12 will surround the valve core 14, so that the valve core 14 and several annular rubber rings 15 are completely located within the baffle 12, effectively preventing the valve core 14 from being scoured by high-speed fluid. At the same time, during the upward displacement of the valve stem 5, the circumferential side wall of the valve stem 5 will contact the scraper 7. The scraper 7 will scrape off the solid particles on the outer wall of the valve stem 5, thereby opening the valve seat 10.

[0056] When the valve stem 5 moves downward, it will drive the fixed column 8 and the valve core 14 to move downward. At this time, the valve core 14 is located inside the baffle 12, which can block the scouring of high-speed fluid. Subsequently, the valve core 14 will enter the valve seat 10. The sealing ring 17 at the bottom of the baffle 12 will contact the top of the valve seat 10. The baffle 12 will be squeezed and move upward in the slide groove 16. The springs 13 at the top of the baffle 12 will be squeezed and contract. At this time, the valve stem 5 continues to move downward until the annular rubber rings 15 on the valve core 14 enter the annular grooves 9 respectively. With the cooperation of the annular rubber rings 15, the annular grooves 9 and the sealing ring 17, a multi-seal effect is achieved, ensuring that the valve core 14 can completely seal the valve seat 10. The sealing effect is better. In addition, under the action of the sealing ring 6, the sealing performance between the upper cover 4 and the valve body 1 can be improved.

[0057] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A black water regulating valve with good sealing performance, comprising a valve body (1), an inlet pipe (2) fixedly installed on one side of the valve body (1), a mounting seat (3) fixedly connected to the bottom of the valve body (1) by a plurality of bolts, a top cover (4) fixedly connected to the top of the valve body (1) by a plurality of bolts, a valve stem (5) slidably installed on the top cover (4) and the valve body (1), a valve core (14) fixedly installed at the bottom of the valve stem (5), and a valve seat (10) fixedly installed at the bottom of the valve body (1), characterized in that, Also include: The fixed column (8) is fixedly installed on the valve stem (5) and located at the top of the valve core (14), the sliding slot (16) is opened in the fixed column (8), the baffle (12) is slidably installed in the sliding slot (16), the top of the baffle (12) is fixedly installed with several springs (13) fixed with the inner wall of the sliding slot (16), the bottom of the baffle (12) is fixedly installed with the sealing ring two (17), the inner wall of the valve seat (10) is opened with several annular grooves (9), the valve core (14) extends into the valve seat (10), the annular groove (9) is provided with the annular rubber ring (15) fixed with the valve core (14); The recess (11) is opened at the top of the valve body (1), the sealing ring one (6) is arranged in the recess (11) and fixed with the upper cover (4), the lower end of the valve seat (10) extends into the mounting seat (3).

2. The black water conditioning valve of claim 1, wherein, The bottom of the sealing ring two (17) is in close contact with the top of the valve seat (10).

3. The black water conditioner valve of claim 1, wherein, The valve core (14) is inserted and matched with the valve seat (10).

4. The black water conditioner valve of claim 1, wherein, The annular rubber ring (15) is inserted and matched with the annular groove (9), and the annular rubber ring (15) is closely attached to the inner wall of the annular groove (9).

5. The black water conditioner valve of claim 1, wherein, The sealing ring one (6) is inserted and matched with the recess (11).

6. The black water conditioner valve of claim 1, wherein, The inner wall of the valve body (1) and located on the valve stem (5) is fixedly installed with the scraper (7), the scraper (7) is located above the fixed column (8), the scraper (7) is in contact with the circumferential side wall of the valve stem (5), and the valve stem (5) is slidably connected with the scraper (7).

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