Filtering and throttling pressure reducing device

Abstract

The utility model discloses a filter and throttling pressure reducing device belongs to fluid control equipment technical field, including main valve body, and the main valve body has the flow channel, and the inside wall bottom of main valve body is detachably connected with throttling subassembly, and still be provided with filter component between throttling subassembly and main valve body, and filter component detachably connects in the inside of main valve body, and filter component and throttling subassembly are integrated in same main valve body, realize the purification and pressure reducing function of fluid in single device. Through this integrated design, reduce the system pipeline connection node and the quantity of external component, thereby reduce the installation difficulty and system cost, avoid the leakage risk and the space occupation problem that multiple device series connection brings simultaneously, in addition, each component is detachable, and the filter core replacement and device maintenance are convenient, and the system maintenance process is simplified.

Description

Technical Field

[0001] This utility model belongs to the field of fluid control equipment technology, specifically a filtration and throttling pressure reducing device. Background Technology

[0002] In numerous industrial production and daily life applications, fluid pressure control is a crucial aspect of ensuring the safe and stable operation of a system. Excessively high or low fluid pressure not only affects the normal operation of downstream equipment such as pipelines, valves, instruments, and actuators, but can also cause equipment wear, leaks, and even safety accidents. Therefore, throttle valves, as important devices for controlling fluid flow and pressure, can precisely regulate pressure and flow by adjusting the flow cross-sectional area, thereby protecting downstream equipment, extending its service life, and ensuring stable system operation.

[0003] However, most filtration and pressure reducing devices on the market are currently independent. This separate structure not only increases the complexity of the system piping and installation costs, but also requires the disassembly and cleaning of multiple components during maintenance, which is cumbersome and inefficient. Some existing integrated filtration and pressure reducing devices have problems such as insufficient filtration accuracy, poor pressure reducing stability and limited flow regulation flexibility in practical applications, making it difficult to meet the needs of industrial production and diversified applications for high-performance fluid control devices. Utility Model Content

[0004] The purpose of this invention is to provide a filtration and throttling pressure reducing device to solve at least one aspect of the problems and defects mentioned in the background art.

[0005] A filtration and throttling pressure reducing device is provided, including a main valve body, the main valve body having a flow channel, a throttling component detachably connected to the bottom of the inner wall of the main valve body, and a filter component disposed between the throttling component and the main valve body, the filter component being detachably connected inside the main valve body.

[0006] Furthermore, the flow channel includes an upper flow channel located above the main valve body.

[0007] Furthermore, the flow channel also includes a lower flow channel located below the main valve body, and the upper flow channel is connected to the lower flow channel.

[0008] Furthermore, the diameter of the upper flow channel is 1.5 to 2 times the width of the lower flow channel diameter.

[0009] Furthermore, the filter assembly includes a mounting housing, with first threaded connection portions on both sides of the mounting housing. The mounting housing is threadedly connected to the inner wall of the main valve body through the threaded connection portions. A filter element is disposed inside the mounting housing, and the filter element abuts against the throttling assembly below.

[0010] Furthermore, the filter element is a filter element made of sintered copper beads.

[0011] Furthermore, the throttling assembly includes a throttling cylinder, with second threaded connection portions on both sides of the upper part of the throttling cylinder. The throttling cylinder is threadedly connected to the inner wall of the main valve body through the second threaded connection portions, and a throttling orifice is provided inside the throttling cylinder.

[0012] Furthermore, the orifice diameter d is in the range of 0.05-3mm.

[0013] Furthermore, a first mounting groove is provided on the outer side of the main valve body, and a first rubber sealing ring is provided in the first mounting groove.

[0014] Furthermore, a second rubber sealing ring is provided between the throttling cylinder and the inner wall of the main valve body.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The filter assembly is installed above the main valve body to pre-treat the fluid before it enters the throttling assembly. After entering the main valve body inlet, the fluid first passes through the filter element structure inside the filter assembly. The filtered clean fluid then enters the throttling assembly, which is located at the bottom of the main valve body. The filtration and throttling pressure reducing device provided in this application integrates the filter assembly and the throttling assembly into the same main valve body, enabling the fluid to complete purification and pressure reduction functions within a single device. This integrated design reduces the number of system piping connection nodes and external components, thereby reducing installation difficulty and system cost. It also avoids the leakage risks and space occupation problems caused by multiple devices connected in series. Furthermore, each component is detachable, facilitating filter element replacement and device maintenance, and simplifying the system maintenance process. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 A schematic diagram of the overall structure of a filtration and throttling pressure reducing device provided by this utility model; Figure 2 A schematic diagram of the cross-sectional structure of the throttling component provided by this utility model; Figure 3 This is a cross-sectional structural diagram of the filter assembly provided by this utility model.

[0018] In the figure: 1. Main valve body; 11. Upper flow channel; 12. Lower flow channel; 13. First mounting groove; 4. First rubber sealing ring; 5. Second rubber sealing ring; 2. Throttling assembly; 21. Throttling cylinder; 211. Throttling orifice; 22. Second threaded connection; 3. Filter assembly; 31. Mounting housing; 32. First threaded connection; 33. Filter element. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be 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 for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-3As shown in the embodiment of this utility model, a filtration and throttling pressure reducing device includes a main valve body 1, which has a flow channel inside. A throttling component 2 is detachably connected to the bottom of the inner wall of the main valve body 1, and a filter component 3 is also provided between the throttling component 2 and the main valve body 1. The filter component 3 is detachably connected inside the main valve body 1. This device achieves simultaneous filtration and pressure reduction of fluids by integrating a filter assembly 3 and a throttling assembly 2 inside the main valve body 1. The main valve body 1 serves as the structural carrier of the entire device, supporting and defining the installation positions of the filter assembly 3 and the throttling assembly 2. At the same time, the internal flow channel design ensures the stability of the flow direction and flow rate of the fluid inside the main valve body 1. The filter assembly 3 is installed above the main valve body 1 to pre-treat the fluid before it enters the throttling assembly 2. After entering the main valve body 1, the fluid first passes through the filter element structure inside the filter assembly 3. The clean fluid after filtration then enters the throttling assembly 2, which is located at the bottom of the main valve body 1. The filtration and throttling pressure reducing device provided in this application integrates the filter assembly 3 and the throttling assembly 2 into the same main valve body, enabling the fluid to complete purification and pressure reduction functions in a single device. This integrated design reduces the number of system pipeline connection nodes and external components, thereby reducing installation difficulty and system cost. It also avoids the leakage risk and space occupation problem caused by multiple devices connected in series. In addition, the filter assembly 3 and the throttling assembly 2 are detachable, which facilitates filter element replacement and device maintenance, simplifying the system maintenance process.

[0026] In one embodiment, see Figure 1 As shown, an upper flow channel 11 is provided above the main valve body 1. When the fluid enters the main valve body 1 through the upper flow channel 11, it first comes into contact with the filter assembly 3 located inside the main valve body 1. The filter assembly 3 performs preliminary purification of the fluid, intercepting particulate impurities or suspended solids. Since the upper flow channel 11 is usually coaxially connected to the inlet end of the filter assembly 3, the fluid has a uniform flow rate and reasonable distribution when entering the filter element, thereby improving the filtration accuracy and reducing the phenomenon of uneven local stress on the filter element.

[0027] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the flow channel also includes a lower flow channel 12 located below the main valve body 1. The upper flow channel 11 is connected to the lower flow channel 12. The upper end of the main valve body 1 is provided with the upper flow channel 11, and the lower end is provided with the lower flow channel 12. The upper flow channel 11 is connected to the external air intake pipe, and the lower flow channel 12 is connected to the external air intake pipe. The upper flow channel 11 and the lower flow channel 12 are connected to the filter assembly 3 and the throttling assembly 2 in sequence inside the main valve body 1 to form an overall fluid passage.

[0028] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the diameter of the upper flow channel 11 is 1.5 to 2 times the width of the lower flow channel 12. In one specific embodiment, the upper part of the main valve body 1 is provided with the upper flow channel 11, and the lower part is provided with the lower flow channel 12. The diameter of the upper flow channel 11 is 1.5 to 2 times the diameter of the lower flow channel 12. For example, when the diameter of the lower flow channel 12 is 10 mm, the diameter of the upper flow channel 11 can be set to 15 to 20 mm. The upper flow channel 11 and the lower flow channel 12 are sequentially connected inside the main valve body through the filter assembly 3 and the throttling assembly 2 to form a complete fluid passage.

[0029] In one embodiment, see Figure 1 and Figure 3 As shown, the filter assembly 3 includes a mounting housing 31, with first threaded connection portions 32 on both sides of the mounting housing 31. The mounting housing 31 is threadedly connected to the inner wall of the main valve body 1 through the first threaded connection portions 32. A filter element 33 is provided inside the mounting housing 31, and the filter element 33 abuts against the throttling assembly 2 below.

[0030] In one embodiment, see Figure 1 and Figure 3 As shown, filter element 33 is a filter element made of sintered copper beads. The core function of filter element 33, made of sintered copper beads, is to achieve efficient filtration and separation of impurity particles in the fluid through its porous sintered structure. The copper bead sintered filter element is formed by sintering copper beads of uniform size at high temperature to create an integral porous body. This results in a large number of uniform and interconnected micropore channels inside. When fluid passes through filter element 33, impurity particles, due to their size being larger than the pore size, are blocked at the surface of filter element 33, while clean fluid can pass smoothly through the pores, achieving filtration and purification.

[0031] In one embodiment, see Figure 1 and Figure 2 As shown, the throttling assembly 2 includes a throttling cylinder 21. The upper two sides of the throttling cylinder 21 are provided with second threaded connection parts 22. The throttling cylinder 21 is threadedly connected to the main valve body 1 through the second threaded connection parts 22. A throttling hole 211 is provided inside the throttling cylinder 21. In one specific embodiment, the throttling assembly 2 includes a throttling cylinder 21, and second threaded connection portions 22 are machined on both sides of the upper part of the throttling cylinder 21. The second threaded connection portions 22 are engaged with the threaded holes corresponding to the lower inner wall of the main valve body 1, so that the throttling cylinder 21 can be firmly fixed on the inner wall of the main valve body 1. Furthermore, the throttling cylinder 21 is a hollow cylindrical structure with a throttling orifice 211 inside. The axis of the throttling orifice 211 is aligned with the direction of the main fluid flow. During operation, the fluid enters the throttling cylinder 21 after being purified by the filter assembly 3. When passing through the throttling orifice 211, the flow velocity increases and the pressure decreases due to the channel contraction, thereby achieving pressure reduction and stable flow output. By adjusting the effective cross-sectional area of ​​the throttling orifice 211, the outlet flow rate and downstream system pressure can be flexibly controlled to ensure the stability and response accuracy of the system operation. In another embodiment, the throttling cylinder 21 may be made of stainless steel, copper alloy or wear-resistant alloy steel to improve pressure resistance, wear resistance and corrosion resistance; the inner wall of the throttling orifice 211 may be precision ground or surface coated to reduce wear caused by fluid scouring, so as to be suitable for high pressure fluid applications.

[0032] In one specific embodiment, please refer to Figure 1 and Figure 2 As shown, the orifice diameter d of the throttling orifice 211 ranges from 0.05 to 3 mm. By limiting the orifice diameter range to 0.05-3 mm, effective regulation of flow rate and pressure can be achieved while ensuring smooth fluid flow. When the orifice diameter is smaller, the fluid velocity increases and the pressure decreases, thereby achieving a strong throttling and pressure reduction effect. When the orifice diameter is larger, the flow resistance is reduced, making it suitable for operating conditions with large flow rates or small pressure differentials. Through this range design, the throttling component 2 can balance throttling accuracy and fluid flow capacity, adapting to various industrial fluid control needs.

[0033] In one embodiment, see Figure 1 and Figure 2 As shown, a first mounting groove 13 is provided on the outer side of the main valve body 1, and a first rubber sealing ring 4 is provided in the first mounting groove 13; The first mounting groove 13 and the first rubber sealing ring 4 together constitute the sealing structure of the main valve body 1, which is used to prevent fluid leakage between the main valve body 1 and the external connecting parts. The rubber sealing ring forms a reliable sealing barrier through elastic deformation and tight fit with the contact surface, so as to effectively prevent media leakage even when the system is under high pressure or high temperature.

[0034] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, a second rubber sealing ring 5 is provided between the throttling cylinder 21 and the inner wall of the main valve body 1. The second rubber sealing ring 5 is located on the bottom inner wall of the main valve body 1 to prevent fluid leakage between the internal flow channel of the main valve body 1 and the throttling assembly 2 or the filter assembly 3. The second rubber sealing ring 5 tightly fits the mounting groove wall and the inner surface of the valve body through its elastic deformation, forming a reliable sealing barrier to ensure that the fluid flows only along the designed flow path, thereby ensuring the stability of the throttling, pressure reduction and filtration functions.

[0035] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A filtration and throttling pressure reducing device, comprising a main valve body (1) having a flow channel therein, characterized in that, A throttling assembly (2) is detachably connected to the bottom of the inner wall of the main valve body (1). A filter assembly (3) is also provided between the throttling assembly (2) and the main valve body (1). The filter assembly (3) is detachably connected inside the main valve body (1).

2. The filtration and throttling pressure reducing device according to claim 1, characterized in that, The flow channel includes an upper flow channel (11) located above the main valve body (1).

3. The filtration and throttling pressure reducing device according to claim 2, characterized in that, The flow channel also includes a lower flow channel (12) located below the main valve body (1), and the upper flow channel (11) is connected to the lower flow channel (12).

4. The filtration and throttling pressure reducing device according to claim 3, characterized in that, The diameter of the upper flow channel (11) is 1.5 to 2 times the width of the diameter of the lower flow channel (12).

5. The filtration and throttling pressure reducing device according to claim 1, characterized in that, The filter assembly (3) includes a mounting housing (31), and the mounting housing (31) has a first threaded connection part (32) on both sides. The mounting housing (31) is threaded to the inner wall of the main valve body (1) through the first threaded connection part (32). The mounting housing (31) has a filter element (33) inside, and the filter element (33) abuts against the throttling assembly (2) below.

6. The filtration and throttling pressure reducing device according to claim 5, characterized in that, The filter element (33) is a filter element made of sintered copper beads.

7. The filtration and throttling pressure reducing device according to claim 1, characterized in that, The throttling assembly (2) includes a throttling cylinder (21), and the upper two sides of the throttling cylinder (21) are provided with second threaded connection parts (22). The throttling cylinder (21) is threadedly connected to the inner wall of the main valve body (1) through the second threaded connection parts (22). The throttling cylinder (21) is provided with a throttling hole (211) inside.

8. A filtration and throttling pressure reducing device according to claim 7, characterized in that, The orifice diameter d of the throttling orifice (211) is 0.05-3 mm.

9. A filtration and throttling pressure reducing device according to claim 1, characterized in that, The main valve body (1) is provided with a first mounting groove (13) on the outside, and a first rubber sealing ring (4) is provided in the first mounting groove (13).

10. A filtration and throttling pressure reducing device according to claim 7, characterized in that, A second rubber sealing ring (5) is provided between the throttling cylinder (21) and the inner wall of the main valve body (1).

Images