High-temperature ball valve with high-temperature-resistant ceramic coating

Abstract

The utility model belongs to the field of ball valves, and particularly relates to a high-temperature ball valve with a high-temperature-resistant ceramic coating, which comprises a high-temperature-resistant ball valve and a driving mechanism. One end of a rotating shaft on the high-temperature-resistant ball valve is fixedly connected with a first gear, and the driving mechanism is connected with the first gear and the high-temperature-resistant ball valve. The driving mechanism comprises a sliding rail, a sliding block, a rotating shaft, a second gear, a trapezoidal clamping block, thermal expansion metal, a second spring, a worm and a worm gear, the sliding block is slidably connected to the sliding rail, the rotating shaft is rotatably connected to the sliding block, the second gear is fixedly installed on the rotating shaft and is in meshed connection with the first gear, a through hole is formed in the sliding rail, and the sliding rail is provided with a through hole. Thermal expansion metal is fixedly installed in the through hole, and one end of the thermal expansion metal makes contact with the high-temperature-resistant ball valve. According to the high-temperature-resistant ball valve, heat on the high-temperature-resistant ball valve can be prevented from being conducted to the hand wheel at one end of the worm through cooperation of all the components, follow-up operation is prevented from being affected, and safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a high-temperature ball valve with a high-temperature resistant ceramic coating. Background Technology

[0002] High-temperature ball valves have a metal-sealed structure and a metal-to-metal sealing method. They can be replaced with metal-to-metal sealing rings or stainless steel plate and graphite composite plate sealing rings. Hard-seal butterfly valves can be driven by electric, manual, worm gear, pneumatic and other methods.

[0003] In the existing technology, the valve stem and handwheel of the manual high-temperature ball valve are generally set as one piece. Although there is a heat insulation function between the two, it cannot completely isolate the heat. If the ball valve is poorly designed or the heat insulation material is of poor quality, the handwheel will still get hot, which will affect subsequent operation. There is room for improvement.

[0004] Therefore, we propose a high-temperature ball valve with a high-temperature resistant ceramic coating to solve the problems in the background art.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-temperature ball valve with a high-temperature resistant ceramic coating.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A high-temperature ball valve with a high-temperature resistant ceramic coating includes a high-temperature resistant ball valve and an actuation mechanism;

[0009] One end of the rotating shaft on the high-temperature ball valve is fixedly connected to a gear, and the driving mechanism is connected to the gear and the high-temperature ball valve.

[0010] The drive mechanism includes a slide rail, a slider, a rotating shaft, a second gear, a trapezoidal locking block, a thermally expanding metal, a second spring, a worm gear, and a worm wheel. A slider is slidably connected to the slide rail, and a rotating shaft is rotatably connected to the slider. A second gear is fixedly mounted on the rotating shaft, and the second gear meshes with the first gear. A through hole is provided on the slide rail, and a thermally expanding metal is fixedly installed within the through hole. One end of the thermally expanding metal contacts the high-temperature resistant ball valve. Through the coordinated design of the mounting plate, slide rail, slider, rotating shaft, second gear, trapezoidal locking block, thermally expanding metal, second spring, and high-temperature resistant ball valve, heat from the high-temperature resistant ball valve can be prevented from being conducted to the handwheel at one end of the worm gear, thus avoiding interference with subsequent operations and preventing misoperation.

[0011] Preferably, the bottom of the slider is provided with a sliding groove, and a trapezoidal block is slidably installed in the sliding groove. The trapezoidal block engages with the through hole, and one end of the trapezoidal block contacts the thermally expanding metal. Because one end of the trapezoidal block contacts the thermally expanding metal, the thermally expanding metal will gradually push the trapezoidal block out of the through hole, and the spring will be compressed, thereby releasing the trapezoidal block from limiting the slider.

[0012] Preferably, a spring is fixedly installed inside the sliding groove, and one end of the spring is fixedly connected to the trapezoidal block. The trapezoidal block is restored to its original shape by the elastic potential energy of the spring, and the trapezoidal block is easily engaged with the through hole.

[0013] Preferably, two fixed plates are fixedly connected to the slider, and the same worm gear is rotatably connected to the two fixed plates. A worm wheel is meshed on the worm gear, and the worm wheel is fixedly sleeved on the rotating shaft, which facilitates driving the rotating shaft and thus achieving the effect of driving the gear one.

[0014] Preferably, two springs are fixedly connected to one side of the slider, and one end of each spring is fixedly connected to the slide rail. Under the action of the elastic potential energy of the two springs, the slider causes the gear to disengage from the gear.

[0015] Preferably, a threaded rod is threadedly connected to the slide rail, and a push plate is rotatably connected to one end of the threaded rod. The push plate is slidably connected to the slide rail and corresponds to the slider. By rotating the threaded rod, the threaded rod and the slide rail are threadedly driven, causing one end of the threaded rod to push the slider to slide on the slide rail through the push plate, and causing the second gear to mesh with the first gear. Then, the above operation is performed to drive the high-temperature ball valve in a high-temperature state. Afterward, the threaded rod is rotated in the opposite direction to disengage the second gear from the first gear.

[0016] Preferably, a mounting plate is fixedly connected to the slide rail. The mounting plate facilitates the fixed installation of the drive mechanism, allows the second gear to mesh with the first gear, and causes one end of the thermally expanding metal to contact the high-temperature resistant ball valve.

[0017] Preferably, a bearing is fixedly installed on the rotating shaft, and the outer wall of the bearing is fixedly connected to the slider to facilitate the rotation of the rotating shaft. The high-temperature ball valve is provided with a high-temperature resistant ceramic coating, which can improve the high-temperature resistance of the high-temperature ball valve.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This utility model discloses a high-temperature ball valve with a high-temperature ceramic coating. Through the cooperative design of the mounting plate, slide rail, slider, rotating shaft, gear two, trapezoidal locking block, thermal expansion metal, spring two, and the high-temperature ball valve, it can prevent the heat on the high-temperature ball valve from being conducted to the handwheel at one end of the worm gear, thus avoiding affecting subsequent operations and preventing misoperation, improving safety, and having a simple structure and higher practicality. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary. The structures, proportions, sizes, etc., shown in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance, and any modification of the structure, change of the proportional relationship, or adjustment of the size is not permitted.

[0021] Figure 1 This is a three-dimensional structural diagram of a high-temperature ball valve with a high-temperature resistant ceramic coating proposed in this utility model.

[0022] Figure 2 This is a rear view structural schematic diagram of a high-temperature ball valve with a high-temperature resistant ceramic coating proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the drive mechanism structure of a high-temperature ball valve with a high-temperature resistant ceramic coating proposed in this utility model.

[0024] Figure 4 This is an exploded schematic diagram of the drive mechanism of a high-temperature ball valve with a high-temperature resistant ceramic coating proposed in this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. High-temperature ball valve; 2. Gear 1; 3. Drive mechanism; 4. Mounting plate; 5. Through hole; 6. Threaded rod; 7. Push plate; 8. Spring 1; 9. Fixing plate; 31. Slide rail; 32. Slider; 33. Rotating shaft; 34. Gear 2; 35. Trapezoidal block; 36. Thermally expanding metal; 37. Spring 2; 38. Worm; 39. Worm wheel. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a high-temperature ball valve with a high-temperature resistant ceramic coating, as shown in the reference. Figure 1-4 A high-temperature ball valve with a high-temperature ceramic coating includes a high-temperature ball valve 1 and a drive mechanism 3;

[0028] One end of the rotating shaft on the high-temperature ball valve 1 is fixedly connected to gear 2, and the drive mechanism 3 is connected to gear 2 and high-temperature ball valve 1;

[0029] The drive mechanism 3 includes a slide rail 31, a slider 32, a rotating shaft 33, a second gear 34, a trapezoidal locking block 35, a thermally expanding metal 36, a second spring 37, a worm gear 38, and a worm wheel 39. The slider 32 is slidably connected to the slide rail 31, and the rotating shaft 33 is rotatably connected to the slider 32. The second gear 34 is fixedly installed on the rotating shaft 33, and the second gear 34 meshes with the first gear 2. A through hole 5 is provided on the slide rail 31, and a thermally expanding metal 36 is fixedly installed in the through hole 5. One end of the thermally expanding metal 36 is in contact with the high-temperature ball valve 1. Through the cooperative design between the mounting plate 4, the slide rail 31, the slider 32, the rotating shaft 33, the second gear 34, the trapezoidal locking block 35, the thermally expanding metal 36, the second spring 37, and the high-temperature ball valve 1, the heat on the high-temperature ball valve 1 can be prevented from being conducted to the handwheel at one end of the worm gear 38, thus avoiding affecting subsequent operations and preventing misoperation.

[0030] In this method, a sliding groove is provided at the bottom of the slider 32, and a trapezoidal locking block 35 is slidably installed in the sliding groove. The trapezoidal locking block 35 is engaged with the through hole 5, and one end of the trapezoidal locking block 35 is in contact with the thermally expanding metal 36. Because one end of the trapezoidal locking block 35 is in contact with the thermally expanding metal 36 and is limited by the through hole 5, the thermally expanding metal 36 will gradually push the trapezoidal locking block 35 out of the through hole 5, and the spring 8 will be compressed, thereby causing the trapezoidal locking block to... When block 35 releases the limit on slider 32, as thermally expanded metal 36 pushes trapezoidal block 35 out of through hole 5, thermally expanded metal 36 reaches its maximum expansion value. Thermally expanded metal 36 has a high coefficient of thermal expansion within a certain temperature range (20℃~100℃), with an average linear expansion coefficient higher than 15×10-6 / ℃. It is rarely used alone and is often paired with low expansion alloys to form thermal bimetals, such as Cu60Zn40 and FeNi22Cr3 alloys.

[0031] In this method, a spring 8 is fixedly installed inside the sliding groove. One end of the spring 8 is fixedly connected to the trapezoidal block 35. The trapezoidal block 35 returns to its original shape through the elastic potential energy of the spring 8, and it is convenient for the trapezoidal block 35 to engage with the through hole 5.

[0032] In this method, two fixed plates 9 are fixedly connected to the slider 32, and the same worm 38 is rotatably connected to the two fixed plates 9. A worm wheel 39 is meshed on the worm 38, and the worm wheel 39 is fixedly sleeved on the rotating shaft 33, which facilitates driving the rotating shaft 33, thereby achieving the effect of driving the gear 2.

[0033] In this method, two springs 37 are fixedly connected to one side of the slider 32. One end of each spring 37 is fixedly connected to the slide rail 31. Under the action of the elastic potential energy of the two springs 37, the slider 32 drives the gear 34 to disengage from the gear 2.

[0034] In this method, a threaded rod 6 is threadedly connected to the slide rail 31. One end of the threaded rod 6 is rotatably connected to a push plate 7, which is slidably connected to the slide rail 31. The push plate 7 corresponds to the slider 32. By rotating the threaded rod 6, the threaded rod 6 and the slide rail 31 are threadedly driven, so that one end of the threaded rod 6 pushes the slider 32 to slide on the slide rail 31 through the push plate 7, and the gear 2 34 meshes with the gear 1 2. Then, the above operation is performed to achieve the effect of driving the high-temperature ball valve 1 in a high-temperature state. Afterward, the threaded rod 6 is rotated in the opposite direction and the gear 2 34 is disengaged from the gear 1 2.

[0035] In this method, a mounting plate 4 is fixedly connected to the slide rail 31. The mounting plate 4 facilitates the fixed installation of the drive mechanism 3, and enables gear 2 34 to mesh with gear 1 2, and enables one end of the thermally expanding metal 36 to contact the high-temperature ball valve 1.

[0036] In this method, a bearing is fixedly installed on the rotating shaft 33, and the outer wall of the bearing is fixedly connected to the slider 32 to facilitate the rotation of the rotating shaft 33. The high-temperature ball valve 1 is provided with a high-temperature resistant ceramic coating, which can improve the high-temperature resistance of the high-temperature ball valve 1.

[0037] Working principle: During use, the mounting plate 4 facilitates the fixed installation of the drive mechanism 3, and makes gear 2 34 mesh with gear 1 2, and makes one end of the thermally expanded metal 36 contact the high-temperature ball valve 1.

[0038] By rotating the worm 38, the worm 38 meshes with the worm wheel 39 for transmission. At the same time, the worm wheel 39 drives the rotating shaft 33 to rotate on the slider 32. Simultaneously, the rotating shaft 33 drives the gear 2 34 to rotate synchronously. Meanwhile, the gear 2 34 meshes with the gear 1 2 for transmission, thereby causing the gear 1 2 to drive the rotating shaft on the high-temperature ball valve 1 to rotate, thus achieving the effect of driving the high-temperature ball valve 1.

[0039] When the high temperature ball valve 1 is too high, the heat it generates will cause the thermal expansion metal 36 to expand within the through hole 5. During this process, since one end of the trapezoidal block 35 is in contact with the thermal expansion metal 36, the thermal expansion metal 36 will gradually push the trapezoidal block 35 out of the through hole 5, and the spring 8 will be compressed. This will release the trapezoidal block 35 from limiting the slider 32. At this time, the elastic potential energy of the two springs 37 will cause the slider 32 to drive the rotating shaft 33, gear 34 and worm 38 to move synchronously, and the gear 34 will disengage from gear 2. This will prevent heat transfer between gear 2 and gear 34, and prevent the heat on the high temperature ball valve 1 from being conducted to the handwheel at one end of the worm 38. This will prevent the subsequent operation from being affected and will also prevent misoperation, thus improving safety.

[0040] Subsequently, when it is necessary to drive the high-temperature ball valve 1: by rotating the threaded rod 6, the threaded rod 6 and the slide rail 31 are driven by a thread, so that one end of the threaded rod 6 pushes the slider 32 to slide on the slide rail 31 through the push plate 7, and the gear 2 34 meshes with the gear 1 2. Then, the above operation is performed to achieve the effect of driving the high-temperature ball valve 1 in a high-temperature state. After that, the threaded rod 6 is rotated in the opposite direction and the gear 2 34 is disengaged from the gear 1 2.

[0041] The technological advancements of this invention compared to existing technologies are as follows: through the cooperation of various components, heat from the high-temperature ball valve 1 can be prevented from being conducted to the handwheel at one end of the worm gear 38, thus avoiding interference with subsequent operations and preventing misoperation, thereby improving safety. Moreover, the structure is simple and more practical.

[0042] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high temperature ball valve with a high temperature ceramic coating, characterized in that, The high-temperature-resistant ball valve (1) and a driving mechanism (3) are included. One end of a rotating shaft (33) on the high-temperature-resistant ball valve (1) is fixedly connected with a gear one (2), and the driving mechanism (3) is connected with the gear one (2) and the high-temperature-resistant ball valve (1). The driving mechanism (3) includes a sliding rail (31), a sliding block (32), a rotating shaft (33), a gear two (34), a trapezoidal clamping block (35), a thermal expansion metal (36), a spring two (37), a worm (38) and a worm wheel (39), the sliding rail (31) is slidably connected with the sliding block (32), the sliding block (32) is rotatably connected with the rotating shaft (33), the rotating shaft (33) is fixedly connected with the gear two (34), the gear two (34) is meshedly connected with the gear one (2), the sliding rail (31) is provided with a through hole (5), the thermal expansion metal (36) is fixedly installed in the through hole (5), and one end of the thermal expansion metal (36) is in contact with the high-temperature-resistant ball valve (1).

2. A high temperature ball valve with a high temperature ceramic coating according to claim 1, characterized in that, A sliding groove one is formed in the bottom of the sliding block (32), the trapezoidal clamping block (35) is slidably installed in the sliding groove one, the trapezoidal clamping block (35) is clamped with the through hole (5), and one end of the trapezoidal clamping block (35) is in contact with the thermal expansion metal (36).

3. A high-temperature ball valve with a high-temperature ceramic coating according to claim 2, characterized in that, A spring one (8) is fixedly installed in the sliding groove one, and one end of the spring one (8) is fixedly connected with the trapezoidal clamping block (35).

4. A high temperature ball valve with a high temperature ceramic coating according to claim 2, characterized in that, Two fixing plates (9) are fixedly connected with the sliding block (32), the same worm (38) is rotatably connected with the two fixing plates (9), the worm wheel (39) is meshedly connected with the worm (38), and the worm wheel (39) is fixedly sleeved on the rotating shaft (33).

5. A high temperature ball valve with a high temperature ceramic coating according to claim 3, characterized in that, Two spring two (37) are fixedly connected with the sliding block (32), and one end of the two spring two (37) is fixedly connected with the sliding rail (31).

6. A high temperature ball valve with a high temperature ceramic coating according to claim 1, characterized in that, A threaded rod (6) is threadedly connected with the sliding rail (31), one end of the threaded rod (6) is rotatably connected with a push plate (7), the push plate (7) is slidably connected with the sliding rail (31), and the push plate (7) corresponds to the sliding block (32).

7. A high-temperature ball valve with a high-temperature ceramic coating according to claim 6, characterized in that An installation plate (4) is fixedly connected with the sliding rail (31).

8. A high temperature ball valve with a high temperature ceramic coating according to claim 1, characterized in that, A bearing one is fixedly installed on the rotating shaft (33), an outer wall of the bearing one is fixedly connected with the sliding block (32), and the high-temperature-resistant ball valve (1) is provided with a high-temperature-resistant ceramic coating.

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