Gas flow linear adjusting part

Abstract

The utility model relates to the technical field of flow adjusting devices, in particular to a gas flow linear adjusting part. The utility model provides a gas flow linear adjusting piece which comprises a valve body used for playing a foundation supporting role, detachable connectors are symmetrically arranged at the two ends of the valve body, an adjusting piece body capable of conducting linear adjusting operation on gas passing through the valve body is arranged in the valve body, and the adjusting piece body comprises an actuator, a valve rod and a valve element. The valve element is arranged in the center of the interior of the valve body and can rotate in the circumferential direction, a valve rod connected with the valve element is arranged on one side of the valve element and connected with the valve body through a sealed bearing, and an actuator which is connected with the valve rod and can drive the valve rod to rotate is arranged outside the valve body. Due to the fact that the adjusting part is designed, linear adjusting operation of the gas flow can be achieved through the adjusting part, and the problem that due to the fact that an existing ball valve for adjusting the gas flow is designed to be a circular through flow channel, the flow characteristic is in non-linear change is solved.

Description

Technical Field

[0001] This application relates to the technical field of flow regulating devices, and particularly to a gas flow linear regulating component. Background Art

[0002] In existing gas flow control systems, ball valves are widely used due to their simple structure, good sealing performance, long service life, etc.; however, traditional ball valves usually adopt a circular straight-through flow channel design. During the rotation of the valve core, the relationship between its flow rate and the valve core stroke is not linear.

[0003] This is because the rotation of the valve core will change the cross-sectional area of the flow channel, thereby affecting the velocity and flow rate of the fluid passing through, resulting in a non-linear flow rate characteristic; this non-linear characteristic makes it difficult to achieve precise control in occasions where precise control of gas flow rate is required, such as the intake regulation of burners, affecting combustion efficiency and stability. Summary of the Utility Model

[0004] The problem to be solved by this application is that for the existing ball valve for gas flow regulation, due to its circular straight-through flow channel design, the rotation of the valve core will change the cross-sectional area of the flow channel, thereby resulting in a non-linear change in the flow rate characteristic.

[0005] To solve the above technical problem, this application provides a gas flow linear regulating component, including a valve body for basic support. Removable joints are symmetrically arranged at both ends of the valve body. An adjusting component capable of linearly adjusting the gas passing through the valve body is arranged inside the valve body. The adjusting component includes an actuator, a valve stem, and a valve core. The valve core is placed at the central position inside the valve body and can rotate circumferentially. One side of the valve core is provided with a valve stem connected thereto. The valve stem is connected to the valve body through a sealed bearing. An actuator connected to the valve stem and capable of driving its rotation is arranged outside the valve body.

[0006] Since the adjusting component of this application is designed, it is possible to achieve linear adjustment of gas flow through the adjusting component, solving the problem that for the existing ball valve for gas flow regulation, due to its circular straight-through flow channel design, the rotation of the valve core will change the cross-sectional area of the flow channel, thereby resulting in a non-linear change in the flow rate characteristic. Description of the Drawings

[0007] Figure 1 Schematic three-dimensional structure diagram of the embodiment.

[0008] Figure 2 Schematic front view structure diagram of the embodiment.

[0009] Figure 3 Schematic structure diagram of the valve body and the joint.

[0010] Figure 4 It is a schematic structural diagram of the valve stem and the valve core.

[0011] Figure 5 It is a schematic structural diagram of the cavity and the inlet.

[0012] Figure 6 It is a schematic structural diagram of the outlet.

[0013] In the figure: 1, valve body; 2, screw rod; 3, nut; 4, hanging ear; 5, actuator; 6, joint; 7, valve stem; 8, valve core; 9, cavity; 10, inlet; 11, outlet. Specific implementation manners

[0014] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. Embodiment

[0015] The present application relates to a gas flow linear regulator, as Figure 1-6 shown, the regulator includes a valve body 1 for basic support, and detachable joints 6 are symmetrically arranged at both ends of the valve body 1. In order to prevent accidental detachment between the joint 6 and the valve body 1 during use, therefore, the joints 6 are connected by a screw rod 2 and a nut 3. In order to make the joint 6 evenly stressed, therefore, the screw rods 2 are evenly arranged around the joint 6. And in order to prevent the valve body 1 from rotating relatively, therefore, hanging ears 4 passing through the screw rods 2 are arranged around the outside of the valve body 1. And inside the valve body 1, there is arranged a regulator that can linearly regulate the gas passing through the valve body 1.

[0016] The regulator includes an actuator 5, a valve stem 7 and a valve core 8. The valve core 8 is spherical and placed at the central position inside the valve body 1 and can rotate circumferentially. One side of the valve core 8 is provided with a valve stem 7 connected thereto. The valve stem 7 is connected to the valve body 1 through a sealed bearing. In order to stably drive the valve core 8 to rotate through the valve stem 7, therefore, an actuator 5 connected to the valve stem 7 and capable of driving its rotation is arranged outside the valve body 1. Thus, the valve stem 7 is driven by the actuator 5, which can greatly improve the stability of the valve core 8 during rotation.

[0017] In order to enable the gas passing through the valve body 1 to vary linearly, a cavity 9 is concentrically arranged inside the valve core 8. A through-flow channel is formed inside the valve core 8. An inlet 10 and an outlet 11 are concentrically arranged at both ends of the flow channel. The inlet 10 is circular, and the outlet 11 is in the shape of a horizontal straight slot. In order to achieve both linear adjustment of the flow rate and avoid too small a flow rate, the radius ratio between the cavity 9 and the valve core 8 is 1:1.11, the radius ratio between the inlet 10 and the cavity 9 is 1:1.08, and the ratio of the length and width of the outlet 11 to the diameter of the cavity 9 is 25:1:27. Thus, the horizontally arranged outlet 11 enables the passing gas to vary linearly.

[0018] During use, the actuator 5 drives the valve stem 7 to rotate, and the valve stem 7 will drive the valve core 8 inside the valve body 1 to rotate circumferentially. Thus, the gas can enter the cavity 9 through the outlet 11 of the valve core 8 and then flow out through the straight-slot-shaped outlet 11. Thanks to the uniform and stable drive of the actuator 5 and combined with the straight-slot structure of the outlet 11, the gas can increase or decrease along the flow rate of the outlet 11 in a linearly varying manner. Thus, the intake adjustment of the burner can be made more stable and accurate.

[0019] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part depending on the context, the term "one or more" used in the text can be used to describe any feature, structure or property in the sense of a singular meaning, or can be used to describe a combination of features, structures or properties in the sense of a plural meaning. Similarly, at least in part depending on the context, terms such as "a" or "the" can also be understood to convey a singular usage or a plural usage.

[0020] It should be easily understood that the terms "on", "above" and "over" in this disclosure should be interpreted in the broadest manner, so that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but can also include the meaning of "above" or "over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0021] In addition, for the convenience of description, the text may use spatial relative terms, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to other elements or features as shown in the figure. Spatial relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptors used in the text may be interpreted accordingly as well.

[0022] 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A gas flow linear adjustment component, comprising a valve body for playing a basic supporting role, characterized in that: Detachable joints are symmetrically arranged at both ends of the valve body. An adjusting member capable of linearly adjusting the gas passing through the valve body is arranged inside the valve body. The adjusting member includes an actuator, a valve stem, and a valve core. The valve core is placed at the central position inside the valve body and can rotate circumferentially. One side of the valve core is provided with a valve stem connected thereto. The valve stem is connected to the valve body through a sealed bearing. An actuator connected to the valve stem and capable of driving its rotation is arranged outside the valve body.

2. The gas flow linear adjustment member according to claim 1, wherein: The valve core is spherical.

3. The gas flow linear adjustment member according to claim 1, wherein: The valve core has a concentric cavity inside.

4. The gas flow linear adjustment member according to claim 1, characterized in that: A through-flow channel is provided inside the valve core. An inlet and an outlet are concentrically arranged at both ends of the flow channel respectively.

5. The gas flow linear adjustment member according to claim 4, characterized in that: The inlet is circular.

6. The gas flow linear adjustment member according to claim 4, characterized in that: The outlet is in the shape of a horizontal straight slot.

7. The gas flow linear adjustment member according to claim 6, characterized in that: The ratio of the length and width of the outlet to the diameter of the cavity is 25:1:

27.

8. The gas flow linear adjustment part according to claim 1, wherein: The joints are connected by screws and nuts.

9. The gas flow linear adjustment member according to claim 1, wherein: The screws are evenly arranged around the joints.

10. The gas flow linear adjustment member according to claim 1, wherein: Lugs passing through the screws are arranged around the outside of the valve body.

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