Bypass regulator

Abstract

The utility model relates to the technical field of bypass regulators, and discloses a bypass regulator which comprises an electric regulating valve body, a liquid inlet pipe and a liquid outlet pipe are connected to the electric regulating valve body, flanges are fixed to the connecting ends of the liquid inlet pipe and the liquid outlet pipe, and the bypass regulator further comprises a sealing structure and an abutting protection structure. The sealing structure is arranged at the flange connecting position and comprises a first sealing ring and a second sealing ring, and the first sealing ring and the second sealing ring are detachably connected through a magnetic attraction structure. During connection, the protruding parts are matched with the caulking grooves, so that the two sealing rings are tightly connected, the sealing rings can be prevented from independently moving in the connecting or using process, the sealing effect can be improved, the sealing rings can generate adsorption force in the connecting process due to the existence of the flexible magnetic sheets and the flexible iron sheets, and the sealing effect is improved. Connection between the sealing rings can be further enhanced, and therefore the sealing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of bypass regulator technology, and in particular to a bypass regulator. Background Technology

[0002] A bypass regulator is a device used in a filter system to control the bypass flow of fluid. When fluid passes through the filter, a portion of the fluid can bypass the filter body through a bypass pipe. The bypass regulator is used to adjust the amount of this bypass flow. It usually uses the opening degree of valves (such as regulating valves, throttle valves, etc.) to control the bypass flow.

[0003] In the current field of bypass regulators, electric control valves are widely used as the mainstream control devices. The installation of electric control valves and pipelines mainly relies on flange connections, which play a crucial role in ensuring stable system operation. However, there are some issues that cannot be ignored in the sealing process. Traditionally, sealing methods involve placing a sealing ring (gasket) between two flanges. Under normal circumstances, this method effectively prevents media leakage and ensures system tightness. However, when faced with unstable flow rates or prolonged use, the sealing effect of the sealing ring can be affected. Specifically, due to unstable flow rates, the resulting pressure changes cause varying degrees of impact on the sealing ring. Under such impact, the sealing ring may shift, compromising the integrity of the seal and thus reducing its effectiveness. Furthermore, flange connections are typically secured with bolts. During actual operation, unstable flow rates and vibrations caused by other factors can affect the bolt and nut assembly. This vibration can cause the nuts to gradually loosen, ultimately compromising the seal at the connection. Utility Model Content

[0004] This invention proposes a bypass regulator to solve the problem that the sealing performance of existing flange connections is easily compromised, making it difficult to guarantee long-term sealing.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bypass regulator includes an electrically operated regulating valve body, on which an inlet pipe and an outlet pipe are connected. Flanges are fixed to the connecting ends of both the inlet and outlet pipes. The regulator also includes:

[0007] A sealing structure is provided at the flange connection, and the sealing structure includes a first sealing ring and a second sealing ring, which are detachably connected by a magnetic attraction structure.

[0008] A pressure-resistant protection structure is provided outside the inlet pipe and the outlet pipe, and the pressure-resistant protection structure is used to limit and protect the nut at the flange connection.

[0009] Preferably, the magnetic attraction structure includes a plurality of flexible magnetic sheets and flexible iron sheets, wherein the plurality of flexible magnetic sheets are fixed in a ring array on the side of the first sealing ring near the second sealing ring, and the plurality of flexible iron sheets are fixed in a ring array on the side of the second sealing ring near the first sealing ring.

[0010] Preferably, a protrusion is fixed on the side of the first sealing ring near the second sealing ring, and a groove matching the protrusion is formed on the side of the second sealing ring near the first sealing ring. The protrusion and the flexible magnetic sheet are distributed alternately.

[0011] Preferably, the outer wall of the flange has a groove.

[0012] Preferably, the pressure protection structure includes a first sheath fitted outside the inlet pipe and a second sheath fitted outside the outlet pipe. The distance between the first and second sheaths is adjustable, and multiple abutment rods are connected in a ring array on the opposite side of the first and second sheaths. The end of each abutment rod is fixed with an abutment post facing the connecting nut on the flange.

[0013] Preferably, the abutment has a receiving groove for accommodating a nut, and a bidirectional telescopic rod is installed between the first sheath and the second sheath.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] (1) By setting the sealing structure, the protrusion and the groove cooperate with each other during connection, so that the two sealing rings form a tight connection, which can prevent the sealing rings from shifting independently during connection or use, and can improve the sealing effect. In addition, the presence of the flexible magnetic sheet and the flexible iron sheet can generate an adsorption force during the connection process, which can further enhance the connection between the sealing rings, thereby improving the sealing effect.

[0016] (2) By setting up the pressure protection structure, after the bypass regulator is installed, the bidirectional telescopic rod is activated so that the first and second protective sleeves are fitted onto the corresponding flange nut ends, and the abutment is fitted onto the outside of the nut. On the one hand, it provides protection for the nut, reduces the contact between the nut and the external environment, and reduces the possibility of rusting; on the other hand, it can limit the nut, reduce loosening, and improve the stability of the connection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the pressure-resistant protective structure of this utility model;

[0020] Figure 3 This is a structural diagram of the flange and sealing structure of this utility model in their disassembled state;

[0021] Figure 4 This is one of the exploded structural diagrams of the sealing structure of this utility model;

[0022] Figure 5 This is the second exploded structural diagram of the sealing structure of this utility model;

[0023] In the diagram: 1. Electric regulating valve body; 2. Inlet pipe; 3. Outlet pipe;

[0024] 4. Pressure-resistant protective structure; 41. Two-way telescopic rod; 42. First protective sleeve; 43. Second protective sleeve; 44. Support rod; 45. Support column; 46. Receiving groove;

[0025] 5. Flange; 51. Groove;

[0026] 6. Sealing structure; 61. First sealing ring; 611. Protrusion; 612. Flexible magnetic sheet; 62. Second sealing ring; 621. Groove; 622. Flexible iron sheet. Detailed Implementation

[0027] 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.

[0028] This utility model provides, for example Figures 1-5The bypass regulator shown includes an electric regulating valve body 1. The electric regulating valve receives an electrical signal from the control system, which drives the actuator to move the valve core. The movement of the valve core changes the cross-sectional area of ​​the flow channel inside the valve body, thereby regulating the fluid flow rate. When the electrical signal changes, the direction and speed of the actuator change accordingly, causing the valve core to move between different positions, thereby regulating the flow rate. It is a commonly used regulating valve, and its specific structure will not be described in detail here. The electric regulating valve body 1 is connected to an inlet pipe 2 and an outlet pipe 3. The connecting ends of the inlet pipe 2 and the outlet pipe 3 are both fixed with flanges 5. A groove 51 is provided on the outer wall of the flange 5. It also includes a sealing structure 6, which is located at the flange 5 connection. The sealing structure 6 includes a first sealing ring 61 and a second sealing ring 62. The first sealing ring 61 and the second sealing ring 62 are detachably connected by a magnetic attraction structure.

[0029] See Figure 4 and Figure 5 As shown, the magnetic attraction structure includes multiple flexible magnetic sheets 612 and flexible iron sheets 622. The flexible magnetic sheets 612 are made of ferrite magnetic powder and polymer materials such as rubber or plastic. They contain magnetic particles and have a certain degree of flexibility and bendability. They can change shape to a certain extent without breaking or losing magnetism. The multiple flexible magnetic sheets 612 are fixed in a ring array on the side of the first sealing ring 61 near the second sealing ring 62. The multiple flexible iron sheets 622 are fixed in a ring array on the side of the second sealing ring 62 near the first sealing ring 61. The flexible magnetic sheets 612 and flexible iron sheets 622 can attract each other through magnetic attraction. In the connected state, the magnetic attraction enhances the sealing effect, improves the sealing performance, and reduces leakage.

[0030] See Figure 4 and Figure 5 As shown, a protrusion 611 is fixed on the side of the first sealing ring 61 near the second sealing ring 62, and a groove 621 that matches the protrusion 611 is opened on the side of the second sealing ring 62 near the first sealing ring 61. The protrusion 611 and the flexible magnetic sheet 612 are distributed alternately.

[0031] Based on the above, the specific connection is illustrated below using the connection between the inlet pipe 2 and the pipeline: the first sealing ring 61 can be embedded in the groove 51 of the flange 5 on the inlet pipe 2, and the second sealing ring 62 can be embedded in the end flange of the pipeline to be connected. When the two are connected, the cooperation between the protrusion 611 and the groove 621 makes the two sealing rings form a tight connection. This tight connection can not only prevent the sealing rings from shifting independently during connection or use, but also improve the sealing effect. In addition, the presence of the flexible magnetic sheet 612 and the flexible iron sheet 622 makes the sealing rings generate an adsorption force during the connection process. This adsorption force can further enhance the connection between the sealing rings, thereby improving the sealing effect.

[0032] In addition, see Figure 1 and Figure 2 As shown, the bypass regulator also includes a pressure protection structure 4, which is located outside the inlet pipe 2 and the outlet pipe 3, and the pressure protection structure 4 is used to limit and protect the nut at the flange 5 connection.

[0033] Among them, see Figure 1 and Figure 2 As shown, the pressure protection structure 4 includes a first sheath 42 sleeved outside the inlet pipe 2 and a second sheath 43 sleeved outside the outlet pipe 3. The distance between the first sheath 42 and the second sheath 43 is adjustable. Specifically, a bidirectional telescopic rod 41 is installed between the first sheath 42 and the second sheath 43. The bidirectional telescopic rod 41 is preferably an electric telescopic rod, and the bidirectional telescopic rod 41 can be fixed on the outer wall of the electric regulating valve body 1. On the opposite side of the first sheath 42 and the second sheath 43, multiple abutment rods 44 are connected in a ring array. The end of the abutment rod 44 is fixed with an abutment post 45 facing the connecting nut on the flange 5. The abutment post 45 is provided with a receiving groove 46 for accommodating the nut.

[0034] As described above, after the bypass regulator is installed on the pipeline, the bidirectional telescopic rod 41 can be activated. The bidirectional telescopic rod 41 drives the first sheath 42 and the second sheath 43 to move away from each other. During the movement, the first sheath 42 and the second sheath 43 are respectively fitted onto the nut ends of the corresponding flanges 5. At this time, the abutment 45 with the receiving groove 46 is fitted onto the outside of the nut. This setting has two advantages: first, the presence of the abutment 45 provides a layer of protection for the nut, effectively reducing the contact between the nut and the external environment and reducing the possibility of rust; second, the abutment 45 plays a limiting role for the nut, making it less prone to loosening and improving the stability of the connection.

[0035] 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 bypass regulator, comprising an electric regulating valve body (1), wherein an inlet pipe (2) and an outlet pipe (3) are connected to the electric regulating valve body (1), and flanges (5) are fixed to the connecting ends of the inlet pipe (2) and the outlet pipe (3), characterized in that, It also includes: A sealing structure (6) is provided at the flange (5) connection, and the sealing structure (6) includes a first sealing ring (61) and a second sealing ring (62), which are detachably connected by a magnetic attraction structure. A pressure-resistant protection structure (4) is provided outside the inlet pipe (2) and the outlet pipe (3), and the pressure-resistant protection structure (4) is used to limit and protect the nut at the flange (5) connection.

2. A bypass regulator according to claim 1, characterized in that: The magnetic attraction structure includes multiple flexible magnetic sheets (612) and flexible iron sheets (622). The multiple flexible magnetic sheets (612) are fixed in a ring array on the side of the first sealing ring (61) near the second sealing ring (62), and the multiple flexible iron sheets (622) are fixed in a ring array on the side of the second sealing ring (62) near the first sealing ring (61).

3. A bypass regulator according to claim 2, characterized in that: The first sealing ring (61) has a protrusion (611) fixed on the side near the second sealing ring (62), and the second sealing ring (62) has a groove (621) that matches the protrusion (611) on the side near the first sealing ring (61). The protrusion (611) and the flexible magnetic sheet (612) are distributed alternately.

4. A bypass regulator according to claim 2, characterized in that: The outer wall of the flange (5) is provided with a groove (51).

5. A bypass regulator according to claim 1, characterized in that: The pressure protection structure (4) includes a first sleeve (42) sleeved outside the inlet pipe (2) and a second sleeve (43) sleeved outside the outlet pipe (3). The distance between the first sleeve (42) and the second sleeve (43) is adjustable. On the opposite side of the first sleeve (42) and the second sleeve (43), a plurality of abutment rods (44) are connected in a ring array. The end of the abutment rod (44) is fixed with an abutment post (45) facing the connecting nut on the flange (5).

6. A bypass regulator according to claim 5, characterized in that: The abutment (45) is provided with a receiving groove (46) for accommodating the nut, and a bidirectional telescopic rod (41) is installed between the first sheath (42) and the second sheath (43).

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