Manual and automatic integrated multifunctional flange control valve

Abstract

The manual-automatic integrated multifunctional flange control valve structurally comprises a valve body, a main channel, a first valve arranged at the front end of the main channel and used for opening and closing the main channel and the like, and is mainly characterized in that a first branch channel and a second branch channel which are arranged in parallel are arranged at the rear end of the main channel, and the second valve is arranged in the first branch channel; a second valve is arranged in the first branch channel and controls the first branch channel and the main channel to be communicated and opened, a third valve is arranged in the second branch channel and controls the second branch channel and the main channel to be communicated and opened, the second valve can be an automatic control valve, and the third valve can be a manual control valve; therefore, when the automatic control valve is in a closed state but breaks down, that is, when the first branch channel is accidentally closed and cannot be opened, the second branch channel can be opened through the manual control valve designed in parallel to ensure normal operation of the pipeline system, so that normal use of the pipeline system is prevented from being affected, and the use reliability is improved.

Description

Technical Field

[0001] The invention relates to a manual-automatic valve in the technical field of fluid control, in particular to a manual-automatic multifunctional flange control valve. Background Art

[0002] In industrial pipeline systems, valves are key components for controlling the flow of fluid media, such as liquids, gases, and steam. Existing valves are mainly divided into two types: manual control valves and automatic control valves. Manual control valves have advantages such as simple operation and low cost, but they require manual on-site operation, low work efficiency, and are inconvenient to use in some dangerous situations or working conditions that require frequent opening and closing. Automatic control valves can achieve remote control and automatic operation, but once a power outage or control system failure occurs, the valve will not be able to operate normally, which is prone to safety hazards. Therefore, in order to solve the above problems, valve manufacturers have launched a manual and automatic control valve, which integrates the manual control valve and the automatic control valve in series. Therefore, even if the automatic control valve fails and cannot be closed normally, it can be used normally by operating the manual control valve. However, in actual use, it is found that when the automatic control valve fails in the closed state and cannot be opened normally, the entire pipeline system will be in a closed state, and the manual control valve at this time will not play the role of opening and closing as it should. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a manual-automatic multifunctional flange control valve which does not affect the normal use of the pipeline system when a fault occurs in the automatic control valve when the valve is in a closed state.

[0004] The technical problem of the present invention is achieved through the following technical solutions: A manual-automatic multifunctional flange control valve comprises a valve body, a main channel arranged in the valve body and through which a medium circulates, and a first valve arranged at the front end of the main channel and opening and closing the main channel, a first branch channel and a second branch channel arranged in parallel are arranged at the rear end of the main channel, a second valve is arranged in the first branch channel, and the second valve controls the opening and closing of the connection between the first branch channel and the main channel, a third valve is arranged in the second branch channel, and the third valve controls the opening and closing of the connection between the second branch channel and the main channel.

[0005] A partition plate is provided at the rear end of the main channel, and the partition plate divides the rear end of the main channel into a first branch channel and a second branch channel. A water hole is provided on the partition plate. The first branch channel is connected to the main channel through the water hole, and the second branch channel is directly connected to the main channel.

[0006] The partition plate is arranged to be parallel to the axis of the main channel, and the axis of the water hole is perpendicular to the axis of the main channel.

[0007] The first valve is a manually controlled valve, the second valve is an automatically controlled valve, and the third valve is a manually controlled valve.

[0008] The valve stem of the manual control valve extends out of the valve body to install a manual drive component, and the valve stem of the automatic control valve extends out of the valve body to install an automatic drive component.

[0009] The manual drive member is a handle or a hand wheel, and the automatic drive member is an electric actuator or a pneumatic actuator.

[0010] A front flange is provided outside the valve body at the front end of the main channel, and the front flange is connected to the main channel through the internal front connecting hole; a rear flange is provided outside the valve body at the rear end of the main channel, and the rear flange is connected to the first branch channel and the second branch channel at the same time through the internal rear connecting hole.

[0011] The opening and closing axis lines of the second valve and the third valve are parallel.

[0012] The automatic driving member of the second valve and the manual driving member of the third valve are symmetrically arranged on both sides of the valve body; the manual driving member of the first valve and the automatic driving member of the second valve, and the manual driving member of the first valve and the manual driving member of the third valve are all arranged in a 90° offset manner.

[0013] The manual driving member of the first valve, the automatic driving member of the second valve and the manual driving member of the third valve are respectively installed on the installation platform outside the valve body.

[0014] Compared with the prior art, the present invention mainly provides a first branch channel and a second branch channel arranged in parallel at the rear end of the main channel of the valve body, and a second valve is provided in the first branch channel, and the second valve controls the opening and closing of the connection between the first branch channel and the main channel, and a third valve is provided in the second branch channel, and the third valve controls the opening and closing of the connection between the second branch channel and the main channel, wherein the second valve can be set as an automatic control valve, and the third valve can be set as a manual control valve; in this way, when the automatic control valve is in a closed state but fails, that is, when the first branch channel is accidentally closed and cannot be opened, the second branch channel can be opened by the manual control valve designed in parallel to ensure the normal operation of the pipeline system, thereby avoiding affecting the normal use of the pipeline system and improving the reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the present invention along the opening and closing axis of the second valve and the third valve.

[0016] Figure 2 for Figure 1Stereoscopic diagram.

[0017] Figure 3 It is a cross-sectional view along the opening and closing axis of the first valve of the present invention.

[0018] Figure 4 for Figure 3 Stereoscopic diagram. DETAILED DESCRIPTION

[0019] The embodiments of the present invention will be described in detail below with reference to the above-mentioned drawings.

[0020] like Figure 1 to Figure 4 As shown, 1. valve body, 11. main channel, 12. first branch channel, 13. second branch channel, 14. installation platform, 2. first valve, 3. second valve, 4. third valve, 5. partition plate, 51. water hole, 6. front flange, 61. front connecting hole, 7. rear flange, 71. rear connecting hole, 8. manual drive part, 9. automatic drive part, 10. sealing gasket.

[0021] Manual and automatic multifunctional flange control valve, such as Figure 1 , Figure 3 As shown, it is a combined ball valve that meets different working conditions through manual and automatic operation. Its structure includes a valve body 1, a first valve 2, a second valve 3 and a third valve 4. The valve body 1 can be spherical or cylindrical, and a main channel 11 is provided in the valve body that runs through the horizontal line and allows the medium to flow. Figure 1 , Figure 3 The left side of the view shown is the front end or front side of the valve body 1 or the main channel, and the right side of the view is the rear end or rear side of the valve body or the main channel.

[0022] Among them, the valve body 1 outside the front end of the main channel, that is, Figure 3 The left end of the valve body shown is fixed with a front flange 6 by screws, and a sealing gasket 10 is provided between the front flange 6 and the front end of the valve body 1 to form a connection seal. The front flange 6 is connected to the main channel 11 through the internal front connecting hole 61.

[0023] The first valve 2 is arranged at the front end of the main channel 11 and is used to open and close the main channel. Specifically, it is arranged between the front flange 6 and the front end of the valve body 1. The first valve 2 can be a manually controlled valve, and the valve stem of the manually controlled valve extends out of the valve body to install a manual driving member 8, such as a handle or a hand wheel. Figure 3 As shown, a manual ball valve is selected, and the ball valve core located in the valve seat in the main channel is driven to rotate by a handle arranged outside the valve body 1 to realize the sealing opening and closing of the main channel 11. The opening and closing axis of the first valve 2 is perpendicular to the axis of the main channel 11.

[0024] The valve body 1 at the rear end of the main channel 11, that is, Figure 1 The right end of the valve body shown is fixed with a rear flange 7 by screws, and a sealing gasket 10 is provided between the rear flange and the rear end of the valve body 1 to form a connection seal. The rear flange 7 is connected to the first branch channel 12 and the second branch channel 13 through the internal rear connecting hole 71.

[0025] The first branch channel 12 and the second branch channel 13 are arranged in parallel at the rear end of the main channel 11. Figure 3 As shown, a partition plate 5 parallel to the axis line of the main channel is provided at the rear end of the main channel 11, and the partition plate divides the rear end of the main channel into a first branch channel 12 and a second branch channel 13; moreover, a water hole 51 is provided on the partition plate 5, and the axis line of the water hole is perpendicular to the axis line of the main channel 11, so that the first branch channel 12 is connected to the main channel 11 through the water hole 51, and the second branch channel 13 is directly connected to the main channel 11.

[0026] The second valve 3 is arranged in the first branch channel 12, and the second valve 3 controls the opening and closing of the communication between the first branch channel 12 and the main channel 11. The second valve 3 can be an automatic control valve, and the valve stem of the automatic control valve extends out of the valve body to install an automatic driving member 9, such as an electric actuator or a pneumatic actuator, etc. Figure 1 The electric stop valve shown in the figure can drive the valve disc in the first branch channel 12 to move up and down through the electric actuator arranged outside the valve body to seal and open the water hole 51, that is, to open and close the water hole through soft sealing, thereby realizing the sealed opening and closing of the first branch channel 12.

[0027] The third valve 4 is arranged in the second branch channel 13, and the third valve 4 controls the opening and closing of the communication between the second branch channel 13 and the main channel 11. The third valve 4 can also be a manually controlled valve, and the valve stem of the manually controlled valve extends out of the valve body to install a manual driving member 8, such as a handle or a hand wheel, etc. Figure 3 As shown, a manual gate valve is selected, and the gate plate in the second branch channel 13 is driven to move up and down by a hand wheel arranged outside the valve body 1, and the gate plate cavity arranged on the partition plate 5 is cooperated to realize the sealing opening and closing of the second branch channel 13, that is, the second branch channel is opened and closed by hard sealing.

[0028] The opening and closing axis lines of the second valve 3 and the third valve 4 are parallel, so the automatic drive member 9 of the second valve and the manual drive member 8 of the third valve are symmetrically arranged on both sides of the valve body 1, that is, the electric actuator and the hand wheel are symmetrically arranged on both sides of the valve body 1.

[0029] The manual drive member 8 of the first valve 2 and the automatic drive member 9 of the second valve 3 , as well as the manual drive member 8 of the first valve 2 and the manual drive member 8 of the third valve 4 are all arranged in an offset manner of 90°.

[0030] Therefore, the three driving parts can make the product appearance smaller and more compact through the above-mentioned structural layout, thereby meeting the installation and operation requirements of narrow spaces.

[0031] In addition, the manual drive member 8 of the first valve 2, the automatic drive member 9 of the second valve 3 and the manual drive member 8 of the third valve 4 are respectively installed on the installation platform 14 extending outside the valve body 1, which can ensure the stability of the installation structure.

[0032] The present invention integrates three valves into one, that is, the second valve and the third valve are designed in parallel and directly connected in series with the first valve. Therefore, in actual use, when the automatic control valve serving as the second valve 3 is in a closed state but fails, that is, when the first branch channel 12 is accidentally closed and cannot be opened, the second branch channel 13 can be manually opened by the third valve 4 designed in parallel, and the normal operation of the pipeline system can be ensured by cooperating with the first valve 2, thereby avoiding affecting the normal use of the pipeline system and improving the reliability of use; of course, in special circumstances, the third valve 4 can also be an automatic control valve. In this use structure, if any one of the two automatic control valves fails, the other can also automatically control the opening and closing to ensure the normal use of the pipeline system.

[0033] Moreover, this structure has the advantages of simple design, easy operation, safety and reliability, etc. It can meet the needs of different working conditions, especially good sealing performance. It adopts a manual-automatic bidirectional sealing structure. Manual and automatic operations do not interfere with each other. It has a long service life and has broad application market prospects.

[0034] The above-described embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the present application.

Claims

1. A manual-automatic multifunctional flange control valve, comprising a valve body (1), a main channel (11) arranged in the valve body and through which a medium flows, and a first valve (2) arranged at the front end of the main channel and opening and closing the main channel, characterized in that A first branch channel (12) and a second branch channel (13) are arranged in parallel at the rear end of the main channel. A second valve (3) is provided in the first branch channel (12), and the second valve (3) controls the opening and closing of the connection between the first branch channel (12) and the main channel (11). A third valve (4) is provided in the second branch channel (13), and the third valve controls the opening and closing of the connection between the second branch channel (13) and the main channel (11).

2. The manual-automatic multifunctional flange control valve according to claim 1 is characterized in that A partition plate (5) is provided at the rear end of the main channel (11), and the partition plate divides the rear end of the main channel into a first branch channel (12) and a second branch channel (13). A water through hole (51) is provided on the partition plate (5), and the first branch channel (12) is connected to the main channel (11) via the water through hole (51), and the second branch channel (13) is directly connected to the main channel (11).

3. The manual-automatic multifunctional flange control valve according to claim 2 is characterized in that The partition plate (5) is arranged to be parallel to the axis of the main channel (11), and the axis of the water hole (51) is perpendicular to the axis of the main channel (11).

4. The manual-automatic multifunctional flange control valve according to claim 1 is characterized in that The first valve (2) is a manually controlled valve, the second valve (3) is an automatically controlled valve, and the third valve (4) is a manually controlled valve.

5. The manual-automatic multifunctional flange control valve according to claim 4 is characterized in that The valve stem of the manually controlled valve extends out of the valve body (1) to install a manual drive component (8), while the valve stem of the automatically controlled valve extends out of the valve body (1) to install an automatic drive component (9).

6. The manual-automatic multifunctional flange control valve according to claim 5 is characterized in that The manual drive component (8) is a handle or a hand wheel, and the automatic drive component (9) is an electric actuator or a pneumatic actuator.

7. The manual-automatic multifunctional flange control valve according to claim 2 is characterized in that The valve body (1) at the front end of the main channel is provided with a front flange (6) on the outside, and the front flange is connected to the main channel (11) via an internal front connecting hole (61); the valve body (1) at the rear end of the main channel is provided with a rear flange (7) on the outside, and the rear flange is connected to both the first branch channel (12) and the second branch channel (13) via an internal rear connecting hole (71).

8. The manual-automatic multifunctional flange control valve according to claim 1 is characterized in that The opening and closing axis lines of the second valve (3) and the third valve (4) are parallel.

9. The manual-automatic multifunctional flange control valve according to claim 4 is characterized in that The automatic driving member (9) of the second valve (3) and the manual driving member (8) of the third valve (4) are symmetrically arranged on both sides of the valve body (1); the manual driving member (8) of the first valve (2) and the automatic driving member (9) of the second valve (3), as well as the manual driving member (8) of the first valve (2) and the manual driving member (8) of the third valve (4) are all arranged in a 90° offset arrangement.

10. The manual-automatic multifunctional flange control valve according to claim 1, characterized in that The manual drive component (8) of the first valve (2), the automatic drive component (9) of the second valve (3) and the manual drive component (8) of the third valve (4) are respectively mounted on a mounting platform (14) outside the valve body (1).

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