Valve actuator heat shield

Abstract

The valve actuator heat shield comprises a fireproof outer sleeve, an upper top cover and a lower bottom cover, the fireproof outer sleeve is in a columnar shape defined by a square fireproof plate, the upper edge and the lower edge of the square fireproof plate are detachably connected with the upper top cover and the lower bottom cover respectively, and the left side edge and the right side edge of the square fireproof plate are each provided with a reinforcing protection cover. The reinforcing protective covers on the left and right sides are overlapped and adhered; a pull rope penetrating hole is formed in the square fireproof plate, a fixing hole is formed in the reinforcing protective cover, and after a tensioning rope sequentially penetrates through the left fixing hole, the pull rope penetrating hole and the right fixing hole, the two ends of the tensioning rope are fixed. According to the utility model, different valve actuators can be completely coated by different sizes and urinations through a standard component design mode, the tightness can be adjusted on site, the overall coating effect is good, and the final heat insulation and fire prevention effects are also good.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat insulation covers, in particular to a heat insulation cover for a valve actuator. Background Art

[0002] Fire is a major safety concern in various automation systems in chemical and petroleum industries. If certain devices in the system can promptly cut off the path of flammable fluids to the fire, significant losses caused by the fire spreading directly from the fire area to other parts of the plant can be avoided.

[0003] Valve actuators are an essential component of automation systems and are typically installed on-site to control flow paths. Therefore, in the event of a fire, valve actuators are the primary device for shutting off the flow path, preventing flammable fluids from entering the fire zone. In the event of a fire, they can quickly block the flow.

[0004] In addition, due to its special structure, when the valve actuator is in use, a covering layer is generally made on-site to completely cover its surface to achieve heat insulation. This method of making a heat insulation protective cover on-site requires manual skills. First, the heat insulation covers are relatively thick and are made of many layers. Secondly, the structure of the valve actuator is special and needs to be connected to other products above and below. Therefore, in order to completely and tightly cover the valve actuator to achieve the effect of heat insulation protection, it poses technical difficulties for on-site workers.

[0005] To this end, in order to design a standardized product, reduce the workload of on-site coating in some large factories, and solve the problems existing in on-site production of coating layers, it has become the direction of efforts of technical personnel in this field. Utility Model Content

[0006] The purpose of the utility model is to provide a valve actuator heat insulation cover, which can be made into standard parts of different sizes, is very convenient to use, has good covering effect, and has a good heat insulation effect, which can completely solve the shortcomings of the above-mentioned prior art.

[0007] The purpose of the utility model is achieved through the following technical solutions: a valve actuator heat insulation cover, comprising a fireproof jacket, an upper top cover and a lower bottom cover, the upper and lower top covers are respectively provided with a through hole for connecting external parts, the fireproof jacket is enclosed by a square fireproof board to form a column, the upper and lower edges of the square fireproof board are respectively detachably connected to the upper top cover and the lower bottom cover, a reinforced protective cover is respectively provided on the left and right sides of the square fireproof board, and the reinforced protective covers on the left and right sides overlap and adhere; a draw rope through hole is provided on the square fireproof board, and a fixing hole is also provided on the reinforced protective cover, and after the tensioning rope passes through the left fixing hole, the draw rope through hole and the right fixing hole in turn, the two ends of the tensioning rope are fixed.

[0008] As one of the preferred ways, when the fireproof jacket and the upper cover, as well as the fireproof jacket and the lower cover are connected, a cylindrical structure is formed as a whole, and the internal space of the cylindrical structure is an installation cavity for installing the valve actuator.

[0009] As one of the preferred ways, the fireproof jacket is connected to the upper cover via an upper fireproof zipper, and the fireproof jacket is adhered to the lower cover.

[0010] As another preferred embodiment, the fireproof jacket is connected to the upper top cover through an upper fireproof zipper, and the fireproof jacket is connected to the lower top cover through a bottom fireproof zipper; the upper and lower bottom surfaces of the fireproof jacket are both set to be inclined surfaces, and the lower bottom surface of the upper top cover and the upper bottom surface of the lower top cover are also set to corresponding inclined surfaces.

[0011] As one of the preferred embodiments, the perforation provided on the upper top cover is an upper cover perforation, and the inner diameter of the upper cover perforation is adjustable; the perforation provided on the lower top cover is a lower cover perforation, and the inner diameter of the lower cover perforation is adjustable.

[0012] As one of the preferred ways, a Velcro A piece is provided on the left reinforced protective cover, and a Velcro B piece is provided on the right reinforced protective cover, and the area of the Velcro B piece is larger than that of the Velcro A piece.

[0013] As one of the preferred methods, it also includes a fireproof buckle, in which a movable buckle is provided, and the two ends of the tensioning rope are connected together by the movable buckle.

[0014] As one of the preferred methods, the inner diameter of the fixing hole is telescopically adjustable, a fireproof collar is provided on the fixing hole, and the tensioning rope passes through the fireproof collar.

[0015] Compared with the prior art, the beneficial effect of the present invention is that: the present invention discloses a valve actuator heat insulation cover, which is designed as a standard part, and different sizes can achieve complete covering of different valve actuators, and the tightness can be adjusted on site. Not only is the overall covering effect good, but the final heat insulation and fire prevention effect is also very good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0017] Figure 2 This utility model Figure 1 Schematic diagram of the back three-dimensional structure.

[0018] Figure 3 This utility model Figure 1 Schematic diagram of the unfolded three-dimensional structure.

[0019] In the accompanying drawings: fireproof jacket 1, upper top cover 2, lower bottom cover 3, reinforced protective cover 4, upper fireproof zipper 5, bottom fireproof zipper 6, tightening rope 7, fireproof buckle 8, upper cover perforation 9, bottom cover perforation 10, installation cavity 11, Velcro A piece 12, Velcro B piece 13, drawstring perforation 14, fixing hole 15. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1 、 Figure 2 、 Figure 3 As shown, a heat insulation cover for a valve actuator includes a fireproof jacket 1, an upper top cover 2 and a lower bottom cover 3. The fireproof jacket is just a naming method, and its function is to protect the jacket of the valve actuator and to insulate and prevent fire. The heat insulation cover for the valve actuator is designed as a standard part, and different sizes can achieve complete covering of different valve actuators. It has good flexibility, can be bent arbitrarily, can be adjusted in tightness on site, and can also be constructed in narrow spaces. Not only is the overall covering effect good, it is used in places where it is frequently disassembled, and it can also facilitate equipment inspection, maintenance, cleaning and other operations. In addition, the thermal insulation effect can also improve the operating environment, prevent employees from being scalded, and use fire-retardant materials to achieve Class B and Class I non-combustibility. It is suitable for any place that requires flame retardancy and fire prevention, and the final thermal insulation and fire prevention effect is also very good.

[0022] The details are as follows:

[0023] When the fireproof jacket 1 is connected to the upper cover 2, and the fireproof jacket is connected to the lower cover 3, the whole structure forms a cylindrical structure. The interior space of the cylindrical structure serves as a mounting cavity 11 for mounting the valve actuator. The upper and lower covers each have a through-hole for connecting to external components. The valve actuator is placed in the mounting cavity 11. When both ends of the valve actuator are connected to external pipes, the external pipes pass through the two upper and lower through-holes. In this way, the external pipes are generally coated with a layer of thermal insulation material during use. When the through-hole provided on the upper cover 9 is designated as the upper cover through-hole 9, the inner diameter of the upper cover through-hole 9 is adjustable. When the through-hole provided on the lower cover 9 is designated as the lower cover through-hole 10, the inner diameter of the lower cover through-hole 10 is adjustable. These two adjustable through-holes are actually smaller than the external connecting pipe in their natural state. Therefore, when installed, the through-holes naturally form a closed state. Because the entire upper and lower covers, as well as the fireproof jacket, are made of flexible material, the two perforations are configured with a retractable inner diameter to accommodate various pipe openings. Once installed, they provide a strong covering, eliminating the need for a separate covering at the connection point between the valve actuator and the exterior. This is not only convenient but also provides better fireproofing and heat insulation. During processing, the flexible material can be retracted and adjusted in inner diameter through elastic pleats, making the process easy.

[0024] The fireproof jacket 1 is formed into a column by a square fireproof board. The upper and lower edges of the square fireproof board are detachably connected to the upper cover 2 and the lower bottom cover 3 respectively. There are two ways to set it according to needs:

[0025] Method 1: The fireproof jacket 1 is connected to the upper cover 2 via an upper fireproof zipper 5 , and the fireproof jacket is adhered to the lower cover 3 .

[0026] Method 2: As in the appendix of this embodiment Figure 1-3 As shown, the fireproof jacket 1 is connected to the upper cover 2 via an upper fireproof zipper 5 , and the fireproof jacket is connected to the lower cover 3 via a bottom fireproof zipper 6 .

[0027] The fireproof zipper can be made of fireproof material, and the overall structure is detachable, which is more convenient to install. The zipper can also play the role of isolation and sealing. In actual use, the upper and lower bottom surfaces of the fireproof jacket 1 are set to be inclined surfaces, and the lower bottom surface of the upper top cover and the upper bottom surface of the lower top cover are also set to corresponding inclined surfaces. When the fireproof jacket is connected to the upper top cover and the lower top cover through the zipper, the contact surface of the connection can fit better.

[0028] A reinforced protective cover 4 is provided on each side of the square fireproof board. The left and right reinforced protective covers 4 overlap and are bonded together. The left reinforced protective cover 4 is provided with a Velcro A piece 12, and the right reinforced protective cover 4 is provided with a Velcro B piece 13. The Velcro B piece 13 has a larger area than the Velcro A piece. The reinforced protective covers serve to secure the square fireproof board and to fill gaps when the square fireproof board is enclosed, thereby strengthening the board.

[0029] The square fireproof panel is provided with a drawstring hole 14, and the reinforced protective cover 4 also has a fixing hole 15. The inner diameter of the fixing hole 15 is adjustable. A fireproof collar is placed over the fixing hole 15, through which the tensioning cord 7 passes. The collar serves as a secondary protection, preventing the fixing hole from being directly opposite the gap between the square fireproof panels, which would weaken the effectiveness. The collar seals the fixing hole in this position, thus providing a protective barrier. After the tensioning cord 7 passes through the left fixing hole 15, the drawstring hole 14, and the right fixing hole 15, the ends of the tensioning cord 7 are secured. Furthermore, a fireproof buckle 8 is provided to secure the tensioning cord. The buckle 8 has a movable snap that connects the two ends of the tensioning cord 7. The tensioning cord can be arranged in two or more rows. Tightening the tensioning cord allows the entire heat shield to fit more closely to the valve actuator, ensuring a tight fit between the upper and lower holes and the fireproof jacket.

[0030] Of course, the overall material needs to be made of flexible material, otherwise there will be certain deviations in the tight fit. In addition, the material itself needs to have the function of heat insulation and fire prevention. This type of material is available on the market.

[0031] In this embodiment, the fireproof jacket is made of highly insulating mineral fiber wool and covered with a special fabric that can withstand the high temperatures generated by hydrocarbon flames. The preformed, multi-layered filler module is used not only to create the fireproof jacket but also to create the tensioning cord. The fireproof jacket is flexible, reducing heat conduction and preventing heat penetration. It also provides improved weather resistance and resistance to chemicals and UV rays.

[0032] By varying the material used, it can achieve resistance to aging, weathering, water, oil, and debris damage, and has excellent chemical stability and resistance to various chemical corrosion. It can minimize the risk of fire in factory facilities and is particularly suitable for refineries, offshore drilling platforms, and natural gas plants.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A valve actuator heat shield, comprising a fireproof jacket, an upper cover, and a lower cover, wherein each of the upper and lower covers is provided with a through hole for connecting to external parts, characterized in that: The fireproof jacket is formed into a column by a square fireproof board, and the upper and lower edges of the square fireproof board are detachably connected to the upper top cover and the lower bottom cover respectively. A reinforced protective cover is provided on each of the left and right sides of the square fireproof board, and the reinforced protective covers on the left and right sides overlap and adhere to each other; a draw rope through hole is provided on the square fireproof board, and a fixing hole is also provided on the reinforced protective cover. After the tensioning rope passes through the left fixing hole, the draw rope through hole and the right fixing hole in turn, the two ends of the tensioning rope are fixed.

2. The valve actuator heat shield according to claim 1, characterized in that: When the fireproof jacket and the upper cover, as well as the fireproof jacket and the lower cover are connected, a cylindrical structure is formed as a whole, and the internal space of the cylindrical structure is an installation cavity for installing the valve actuator.

3. The valve actuator heat shield according to claim 2, characterized in that: The fireproof outer jacket is connected to the upper top cover through an upper fireproof zipper, and the fireproof outer jacket is adhered to the lower top cover.

4. The valve actuator heat shield according to claim 2, characterized in that: The fireproof jacket is connected to the upper top cover through an upper fireproof zipper, and the fireproof jacket is connected to the lower top cover through a bottom fireproof zipper; the upper and lower bottom surfaces of the fireproof jacket are both set to be inclined surfaces, and the lower bottom surface of the upper top cover and the upper bottom surface of the lower top cover are also set to corresponding inclined surfaces.

5. The valve actuator heat shield according to claim 1, characterized in that: The perforations provided on the upper top cover are upper cover perforations, and the inner diameter of the upper cover perforations is adjustable; the perforations provided on the lower top cover are lower cover perforations, and the inner diameter of the lower cover perforations is adjustable.

6. The valve actuator heat shield according to claim 1, characterized in that: The left reinforced protective cover is provided with a Velcro A piece, and the right reinforced protective cover is provided with a Velcro B piece, and the area of the Velcro B piece is larger than that of the Velcro A piece.

7. The valve actuator heat shield according to claim 1, characterized in that: It also includes a fireproof buckle, which is provided with a movable buckle, and the two ends of the tensioning rope are connected together by the movable buckle.

8. The valve actuator heat shield according to claim 1, characterized in that: The inner diameter of the fixing hole can be adjusted telescopically. A fireproof ring is arranged on the fixing hole, and the tensioning rope passes through the fireproof ring.

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