Filter element support of high-temperature water filter

Abstract

The utility model discloses a filter element bracket of a high-temperature water filter, and relates to the technical field of high-temperature water filtration. Comprising a filter element pressing plate which is located in a filter cylinder and arranged at the top of a filter element to seal the filter element; the supporting pipe is positioned in the filter cylinder and is mounted on the filter element pressing plate; the guide pipe is positioned in the filter cylinder body, is arranged on the supporting pipe and is used for providing a guide effect; and the elastic piece sleeves the periphery of the guide pipe, the top of the elastic piece is higher than the top of the guide pipe, and the elastic piece is used for compensating the displacement generated by thermal expansion. And the positioning ring is welded on the periphery of the supporting pipe and slides along the inner wall of the filter cylinder to ensure that the supporting pipe is concentric with the filter cylinder. According to the filter element support, an elastic compensation mechanism is adopted, the thermal expansion problem caused by temperature alternation is effectively solved, and therefore the tightness of filter element sealing is ensured, and the hidden danger of leakage caused by temperature change is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature water filtration, in particular to a filter element bracket for a high-temperature water filter. Background Art

[0002] With growing awareness of energy conservation, the need for efficient utilization of waste heat from gas-fired power plants is becoming increasingly urgent. Given the significant impact of combustible gas temperature on gas turbine efficiency, high-temperature, high-pressure water generated by waste heat boilers (WHRGs) is typically used to heat the gas through a PCHE heat exchanger to optimize combustion efficiency. However, PCHEs place extremely stringent demands on water quality, making efficient filtration of this high-temperature water a critical step. Given that gas-fired power plants are often used for peak load regulation, the hot water temperature fluctuates significantly. This thermal expansion poses an even more severe challenge to the sealing performance of filter elements.

[0003] In the past, filter element brackets generally adopted a rigid connection method. When the temperature changes, the thermal expansion and contraction characteristics of metal materials will significantly affect the sealing between the filter element and the support. This effect is not conducive to maintaining a good sealing state, which may lead to leakage, resulting in the failure to intercept impurities that should have been effectively filtered, and ultimately causing the heat exchanger PCHE blockage problem. Utility Model Content

[0004] The purpose of the utility model is to provide a high-temperature water filter element bracket, which effectively solves the problem of poor sealing of the filter element due to thermal expansion caused by temperature alternation, and at the same time makes disassembly and assembly of the filter element more convenient and quick.

[0005] To achieve the above objectives, the present application proposes a high-temperature water filter element bracket, comprising:

[0006] The filter element pressure plate is located inside the filter cylinder and is set on the top of the filter element to achieve filter element sealing;

[0007] The support tube is located inside the filter cylinder and installed on the filter element pressure plate;

[0008] The guide tube is located in the filter cylinder and is arranged on the support tube to provide a guiding function;

[0009] The elastic member is sleeved on the outer periphery of the guide tube, and the top of the elastic member is higher than the top of the guide tube, and is used to compensate for the displacement caused by thermal expansion.

[0010] Furthermore, it also includes:

[0011] The positioning ring is welded to the outer periphery of the support tube and slides along the inner wall of the filter cylinder to ensure that the support tube and the filter cylinder are concentric.

[0012] Furthermore, the elastic member is a spring, and the top of the spring is higher than the sealing surface of the top flange of the filter cylinder.

[0013] Furthermore, the flange cover on the filter cylinder compresses the spring, so that the spring is in a compressed state with a residual stroke.

[0014] Furthermore, a positioning boss is provided at the bottom of the filter element pressure plate, and the positioning boss is inserted into the filter element to achieve sealing.

[0015] Furthermore, the bottom of the support tube is welded to the filter element pressure plate, and the top is welded to the guide tube.

[0016] Furthermore, the diameter of the support tube is larger than that of the guide tube, and a clamping platform is formed between the two to provide support for the elastic member.

[0017] The above technical solution adopted by this utility model has the following advantages over existing technologies: the filter element bracket adopts an elastic compensation mechanism to effectively address the thermal expansion caused by temperature fluctuations, thereby ensuring the tightness of the filter element seal and avoiding the potential leakage caused by temperature changes. Due to its elastic adjustment range, it can maintain structural stability and reliability even under complex and changing operating conditions, providing a solid guarantee for the safe and stable operation of the filter.

[0018] Compared with the traditional filter element bracket that relies on bolt fixing, this structure not only greatly improves the disassembly and assembly efficiency, but also significantly reduces maintenance time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a high-temperature water filter element bracket;

[0020] Among them: 1. Flange cover, 2. Flange, 3. Guide tube, 4. Spring, 5. Positioning ring, 6. Support tube, 7. Filter element pressure plate, 8. Filter cylinder, 9. Filter element. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0022] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0023] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0025] See also Figure 1 This embodiment provides a high-temperature water filter element support, comprising:

[0026] The filter element pressing plate 7 is located in the filter cylinder; a positioning boss is provided at the bottom of the filter element pressing plate, and the positioning boss is inserted into the top of the filter element to achieve the filter element sealing;

[0027] The support tube 6 is located inside the filter cylinder and welded to the filter element pressure plate;

[0028] The guide tube 3 is located inside the filter cylinder and is welded to the support tube to provide guidance.

[0029] An elastic member is sleeved on the outer periphery of the guide tube, and the top of the elastic member is higher than the top of the guide tube, and is used to compensate for the displacement caused by thermal expansion; the elastic member is preferably a spring 4, and the top of the spring is higher than the sealing surface of the flange 2 at the top of the filter cylinder;

[0030] The positioning ring 5 is welded to the outer periphery of the support tube and slides along the inner wall of the filter cylinder to ensure that the support tube and the filter cylinder are concentric.

[0031] As a preferred implementation provided in this embodiment, the diameter of the support tube is larger than the diameter of the guide tube, and a clamping platform is formed between the two to provide support for the elastic member.

[0032] When in use, the filter element bracket is placed in the filter cylinder 8 as a whole, and is ensured to be concentric with the filter element 9 by the positioning ring 3. The positioning boss of the filter element pressure plate is inserted into the filter element, and the flange cover 1 compresses the spring 4 to make it in a compressed state with a certain margin stroke. When the water temperature in the filter changes, the filter element bracket as a whole will compensate for the expansion amount due to the displacement caused by the thermal expansion of the metal, so that the filter element pressure plate and the filter element can fit tightly to achieve the sealing requirement.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-temperature water filter element bracket, characterized in that: include: The filter element pressure plate is located inside the filter cylinder and is set on the top of the filter element to achieve filter element sealing; The support tube is located inside the filter cylinder and installed on the filter element pressure plate; The guide tube is located in the filter cylinder and is arranged on the support tube to provide a guiding function; The elastic member is sleeved on the outer periphery of the guide tube, and the top of the elastic member is higher than the top of the guide tube, and is used to compensate for the displacement caused by thermal expansion; The positioning ring is welded to the outer periphery of the support tube and slides along the inner wall of the filter cylinder to ensure that the support tube and the filter cylinder are concentric; The elastic member is a spring, and the top of the spring is higher than the sealing surface of the flange at the top of the filter cylinder; The flange cover on the filter cylinder compresses the spring, so that the spring is in a compressed state with a residual stroke; The diameter of the support tube is larger than that of the guide tube, and a clamping platform is formed between the two to provide support for the elastic member.

2. The high-temperature water filter element bracket according to claim 1, characterized in that: A positioning boss is provided at the bottom of the filter element pressure plate, and the positioning boss is inserted into the filter element to achieve sealing.

3. The high-temperature water filter element bracket according to claim 1, characterized in that: The bottom of the support tube is welded to the filter element pressing plate, and the top is welded to the guide tube.

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