A gate valve suitable for ultra-high temperature material working conditions

Abstract

The utility model provides a kind of gate valve suitable for superhigh temperature material working condition, including valve body, and grouting layer and heat preservation layer are designed between the internal material passage of valve body and external shell.The utility model passes through the design grouting layer and heat preservation layer between internal material passage and external shell, grouting layer uses high-temperature resistant grouting material to pour, heat preservation layer fills special heat preservation material, realizes the opening and closing of material passage under superhigh temperature working condition.

Description

Technical Field

[0001] This utility model relates to the field of industrial valve technology, and in particular to a gate valve suitable for ultra-high temperature material conditions. Background Technology

[0002] Gate valves are an important type of shut-off valve, occupying a significant position in industrial and municipal sectors due to their simple structure, low flow resistance, and reliable sealing. Current development of gate valves is characterized by simultaneous technological upgrades and application expansion.

[0003] Technologically, modern gate valves are undergoing significant innovation. In terms of materials, the use of corrosion-resistant materials such as 304 / 316 stainless steel, duplex steel, and nickel-based alloys is becoming increasingly widespread, while surface treatment technologies such as ceramic coatings have significantly improved valve wear resistance. Breakthroughs have been achieved in sealing technology; the design of resilient gates and double-sealing structures has greatly improved sealing performance, with some products already achieving zero-leakage standards.

[0004] However, the industry still faces many challenges. For example, in the latest cement production process, the temperature of cement clinker reaches 1200-1300 degrees Celsius. Under this condition, extremely high requirements are placed on the materials, sealing, and insulation of gate valves. Currently, there is no gate valve on the market that can specifically solve the problem of use under this condition. Ordinary gate valve materials will deform at 1200 degrees Celsius, and the packing seal of conventional gate valves will fail under such high temperatures, failing to achieve effective sealing. At the same time, the high temperature will conduct heat outward through the gate valve body, making the outside of the equipment a high-temperature state, which poses a great safety hazard. Utility Model Content

[0005] To address the aforementioned issues, this utility model aims to propose a gate valve suitable for ultra-high temperature material handling conditions. By designing a grouting layer and an insulation layer between the internal material channel and the external shell, the grouting layer is filled with high-temperature resistant grout, and the insulation layer is filled with special insulation material, thus enabling the opening and closing of the material channel under ultra-high temperature conditions.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A gate valve suitable for ultra-high temperature material working conditions includes a valve body, wherein a grouting layer and a heat insulation layer are designed between the internal material channel of the valve body and the external shell.

[0007] Furthermore, the grouting layer is injected with high-temperature resistant grout, and the insulation layer is filled with special insulation material.

[0008] Furthermore, the inner shell of the valve body is a frame structure, and the inner shell and the outer shell are connected by spaced connecting ribs.

[0009] Furthermore, the cylinder rod and connecting rod of the valve body are connected by a connecting joint, and the connecting joint is provided with a gap.

[0010] Furthermore, the connecting rod is fixed to the gate plate by bolts and a stop washer; the connecting rod is driven by the extension and retraction of the cylinder rod to move the gate plate back and forth on the guide rail, thereby controlling the opening and closing of the internal material channel. A 32-degree slope is provided between the gate plate and the internal material channel.

[0011] Furthermore, the guide rail is provided with a material drop hole.

[0012] Furthermore, a sealing device with a jetting mechanism is provided between the connecting rod and the inside of the valve body.

[0013] Furthermore, the valve body is provided with an installation port, through which a compressed air jetting device is connected.

[0014] Beneficial effects: This utility model achieves the opening and closing of the material channel under ultra-high temperature conditions by designing a grouting layer and an insulation layer between the internal material channel and the external shell. The grouting layer is filled with high-temperature resistant grout, and the insulation layer is filled with special insulation material. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a schematic diagram of the gate valve for ultra-high temperature material conditions described in this embodiment of the invention. Figure 1 ; Figure 2 This is a schematic diagram of the gate valve for ultra-high temperature material conditions described in this embodiment of the invention. Figure 2 ; Figure 3 This is a schematic diagram of the appearance of the gate valve applicable to ultra-high temperature material working conditions as described in the embodiment of this utility model. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Example 1 See Figure 1-3 A gate valve suitable for ultra-high temperature material working conditions includes a valve body 1, wherein a grouting layer 10 and a heat insulation layer 11 are designed between the internal material channel 101 and the external shell 102 of the valve body 1.

[0019] In this embodiment, the grouting layer and insulation layer between the internal material channel and the external shell can prevent the internal shell from deforming under high temperature conditions, thus reducing the heat conduction from the inside of the valve body to the outside.

[0020] In a specific example, the grouting layer 10 is injected with high-temperature resistant grout, and the insulation layer 11 is filled with special insulation material.

[0021] The high-temperature grouting material in this embodiment can absorb and disperse thermal stress, reducing the temperature gradient of the shell; the special insulation material can further reduce the heat transfer to the outer shell and weaken the heat conduction from the inside of the valve body to the outside.

[0022] It should be noted that the special insulation material uses nanoporous insulation boards.

[0023] In a specific example, the inner housing 103 of the valve body 1 is a frame structure, and the inner housing 103 and the outer housing 102 are connected by spacer connecting ribs 12.

[0024] In this embodiment, the inner shell adopts a frame structure, and the inner shell and the outer shell are connected by spaced connecting ribs to avoid large-area connection between the inner and outer shells and reduce heat conduction.

[0025] In a specific example, the cylinder rod 104 of the valve body 1 is connected to the connecting rod 105 via a connecting joint 106, and the connecting joint 106 is provided with a gap.

[0026] The connection joint in this embodiment has a gap, so that the cylinder rod and the connecting rod do not come into direct contact, thus preventing the connecting rod from conducting heat outward.

[0027] In a specific example, the connecting rod 105 is fixed to the gate 107 by bolts and a stop washer; the connecting rod 105 is driven by the extension and retraction of the cylinder rod 104 to move the gate 107 back and forth on the guide rail 108, thereby controlling the opening and closing of the internal material channel 101. A 32-degree slope is provided between the gate 107 and the internal material channel 101.

[0028] This embodiment uses a retaining washer to prevent loosening between the gate and the connecting rod; The sloping surface allows materials (such as cement clinker) to slide down naturally under the action of gravity, avoiding material retention caused by vertical surfaces.

[0029] Designed to work in conjunction with the guide rail discharge holes: Working together with the inclined discharge holes on the guide rail, a continuous discharge channel is formed, completely eliminating the risk of gate jamming.

[0030] In a specific example, the guide rail 108 is provided with a material drop hole 1080.

[0031] In this embodiment, a material discharge hole is provided on the guide rail to prevent material accumulation from jamming the guide rail and affecting the use of the valve.

[0032] In a specific example, a sealing device 109 with a jetting device is provided between the connecting rod 105 and the interior of the valve body 1.

[0033] The sealing device in this embodiment can use ultra-high temperature resistant ceramic packing, and compressed air can be passed through the carbon ring sealing structure to achieve a reliable sealing effect under ultra-high temperature conditions.

[0034] In a specific example, the valve body 1 is provided with an installation port 13, through which a compressed air jetting device is connected.

[0035] In this embodiment, a compressed air jetting device can generate high-pressure, high-speed air, which on the one hand cools the internal connecting rods and cylinder rods, and on the other hand blows the scattered materials on the slope toward the channel.

[0036] It should be noted that the components in this embodiment, such as the gate, guide rail, connecting rod, and internal shell, which are exposed to high-temperature environments, are made of special steel (Cr28Ni48W5) and can operate continuously at a maximum temperature of 1300 degrees Celsius; the connection of the valve body is made of high-pressure resistant flange.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gate valve suitable for ultra-high temperature material handling conditions, characterized in that, The valve body (1) includes a valve body (1). The valve body (1) has an internal material channel (101) and an external shell (102) with a grouting layer (10) and an insulation layer (11). The cylinder rod (104) and the connecting rod (105) of the valve body (1) are connected by a connecting joint (106). The connecting joint (106) has a gap. The connecting rod (105) is fixed to a gate plate (107) by bolts and a stop washer. The cylinder rod (104) drives the connecting rod (105) to move the gate plate (107) back and forth on the guide rail (108) to control the opening and closing of the internal material channel (101). The gate plate (107) and the internal material channel (101) are provided with a 32-degree slope.

2. The gate valve for ultra-high temperature material conditions according to claim 1, characterized in that, The grouting layer (10) is filled with high-temperature resistant grouting material, and the insulation layer (11) is filled with nanoporous heat insulation board.

3. The gate valve for ultra-high temperature material conditions according to claim 1, characterized in that, The inner shell (103) of the valve body (1) is a frame structure, and the inner shell (103) and the outer shell (102) are connected by spaced connecting stiffeners (12).

4. The gate valve for ultra-high temperature material conditions according to claim 1, characterized in that, The guide rail (108) is provided with a material drop hole (1080).

5. The gate valve for ultra-high temperature material conditions according to claim 1, characterized in that, A sealing device (109) with a jetting device is provided between the connecting rod (105) and the inside of the valve body (1).

6. The gate valve for ultra-high temperature material conditions according to claim 1, characterized in that, The valve body (1) is provided with an installation port (13), through which a compressed air jetting device is connected.

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