Special program-controlled hydraulic butterfly valve for VPSA oxygen production

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a special program-controlled hydraulic butterfly valve for VPSA oxygen production, which comprises a valve body, a valve seat fixedly arranged at the bottom of the valve body, a fixing support fixedly arranged at the top of the valve body, a hydraulic actuator fixedly arranged at the top of the fixing support, a connecting shaft arranged at the bottom of the hydraulic actuator, and a valve rod fixedly arranged at the bottom of the connecting shaft. A valve rod is fixedly arranged at the bottom end of the connecting shaft, the bottom end of the valve rod penetrates through the top of the valve body, is movably connected with the inner wall of the bottom of the valve body and is movably connected with the valve seat, a butterfly plate is fixedly arranged on the valve rod, a plurality of mounting grooves are formed in the surface of the butterfly plate, and clamping grooves are formed in the inner walls of the tops and the inner walls of the bottoms of the mounting grooves. Through the arrangement of the mounting groove, the clamping groove, the insertion strip, the mounting frame and the flow guide plate, the insertion strip is inserted into the clamping groove before equipment is put into use, so that the flow guide structure is mounted, the flow guide plate can achieve the flow guide purpose in the use process, flow resistance and vortex can be reduced, and the flow control precision of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a special programmable hydraulic butterfly valve for VPSA oxygen production. Background Technique

[0002] The programmable hydraulic butterfly valve for VPSA oxygen production is a key component applied in the pressure swing adsorption vacuum desorption (VPSA) oxygen production system. The input valve action signals such as opening and closing the valve are converted into the driving signals of the solenoid valve through the electrical control conversion element, and the on-off of the solenoid valve is used to control the output of the hydraulic actuator, so as to achieve the purpose of controlling the action of the butterfly valve. And the signals detected by the position sensor are used to judge whether the valve action is in place. This programmable hydraulic butterfly valve can accurately control the flow rate and flow direction of gas, ensuring the stable operation and high-efficiency oxygen production of the VPSA oxygen production system.

[0003] However, the existing butterfly plate surface is smooth and does not have a flow guiding function, which increases the flow resistance and reduces the control accuracy of the flow rate. Therefore, a special programmable hydraulic butterfly valve for VPSA oxygen production is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and a special programmable hydraulic butterfly valve for VPSA oxygen production is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a special programmable hydraulic butterfly valve for VPSA oxygen production, including a valve body, a valve seat is fixedly arranged at the bottom of the valve body, a fixed bracket is fixedly arranged at the top of the valve body, a hydraulic actuator is fixedly arranged at the top of the fixed bracket, a connecting shaft is arranged at the bottom of the hydraulic actuator, a valve rod is fixedly arranged at the bottom end of the connecting shaft, the bottom end of the valve rod penetrates through the top of the valve body and the inner wall of the bottom of the valve body and is movably connected with the valve seat, a butterfly plate is fixedly arranged on the valve rod, a plurality of installation grooves are arranged on the surface of the butterfly plate, clamping grooves are arranged on both the top inner wall and the bottom inner wall of the installation groove, and a flow guiding structure is arranged in the installation groove.

[0006] As a further description of the above technical scheme:

[0007] A cavity is arranged in the butterfly plate, a plurality of support plates are arranged in the cavity, the support plates are fixedly connected with the inner wall of the cavity, and the support plates are made of aluminum alloy.

[0008] As a further description of the above technical scheme:

[0009] An upper valve sleeve and a lower valve sleeve are sleeved on the valve rod, a through hole is arranged on the inner wall of the top of the valve body, the upper valve sleeve is movably connected with the through hole, and a packing group is arranged between the inner wall of the through hole and the upper valve sleeve.

[0010] As a further description of the above technical solution:

[0011] The top of the valve seat is provided with a mounting hole, and a tapered roller bearing is fixedly arranged in the mounting hole. The inner ring of the tapered roller bearing is fixedly sleeved on the valve stem.

[0012] As a further description of the above technical solution:

[0013] The diversion structure includes a mounting frame inserted into the mounting groove. A plurality of rotating rods are movably arranged in the mounting frame, and diversion plates are fixedly arranged on the plurality of rotating rods.

[0014] As a further description of the above technical solution:

[0015] Insert bars are fixedly arranged at the top and bottom of the mounting frame, and the insert bars are inserted into the card slots.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, for the special programmable hydraulic butterfly valve for VPSA oxygen production, by setting the mounting groove, card slot, insert bar, mounting frame and diversion plate, before the equipment is put into use, the insert bar is inserted into the card slot to realize the installation of the diversion structure. During use, the diversion plate can play the role of diversion, reduce flow resistance and eddy current, and improve the control accuracy of the equipment for flow rate.

[0018] 2. Compared with the prior art, for the special programmable hydraulic butterfly valve for VPSA oxygen production, the setting of the cavity can enable the butterfly plate to achieve a lightweight design, reduce the burden on the hydraulic actuator, ensure the opening and closing speed of the valve, improve the control accuracy. At the same time, the set aluminum alloy support plate can improve the overall strength of the butterfly plate and reduce the probability of deformation. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a special programmable hydraulic butterfly valve for VPSA oxygen production proposed by the utility model;

[0020] Figure 2 It is a side-sectional structural schematic diagram of a special programmable hydraulic butterfly valve for VPSA oxygen production proposed by the utility model;

[0021] Figure 3 It is a front-view plane schematic diagram of a special programmable hydraulic butterfly valve for VPSA oxygen production proposed by the utility model;

[0022] Figure 4 It is a front-sectional structural schematic diagram of the butterfly plate in a special programmable hydraulic butterfly valve for VPSA oxygen production proposed by the utility model;

[0023] Figure 5This is a three-dimensional schematic diagram after the separation of the butterfly plate and the diversion structure in a special program-controlled hydraulic butterfly valve for VPSA oxygen production proposed by the present utility model.

[0024] Legend:

[0025] 1. Valve body; 2. Fixed bracket; 3. Hydraulic actuator; 4. Connecting shaft; 5. Valve stem; 6. Butterfly plate; 7. Cavity; 8. Support plate; 9. Installation groove; 10. Diversion structure; 101. Installation frame; 102. Insert bar; 103. Rotating rod; 104. Diversion plate; 11. Card slot. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Referring to Figures 1 to 5 , a special program-controlled hydraulic butterfly valve for VPSA oxygen production provided by the present utility model includes a valve body 1. A valve seat is fixedly provided at the bottom of the valve body 1. A fixed bracket 2 is fixedly provided at the top of the valve body 1. A hydraulic actuator 3 is fixedly provided at the top of the fixed bracket 2. A connecting shaft 4 is provided at the bottom of the hydraulic actuator 3. The bottom end of the connecting shaft 4 is fixedly provided with a valve stem 5. The bottom end of the valve stem 5 penetrates the top of the valve body 1 and is movably connected to the inner wall of the bottom of the valve body 1 and the valve seat. An upper valve sleeve and a lower valve sleeve are sleeved on the valve stem 5. A through hole is provided on the inner wall of the top of the valve body 1. The upper valve sleeve is movably connected to the through hole. A packing set is provided between the inner wall of the through hole and the upper valve sleeve. An installation hole is provided at the top of the valve seat. A tapered roller bearing is fixedly provided in the installation hole. The inner ring of the tapered roller bearing is fixedly sleeved on the valve stem 5. The settings of the packing set, the upper shaft sleeve, the lower shaft sleeve, and the tapered roller bearing can reduce friction and deviation and extend the service life of the valve. A butterfly plate 6 is fixedly provided on the valve stem 5. A plurality of installation grooves 9 are provided on the surface of the butterfly plate 6. Card slots 11 are provided on both the top inner wall and the bottom inner wall of the installation groove 9;

[0028] In order to achieve the purpose of reducing the energy consumption of the actuator, a cavity 7 is provided in the butterfly plate 6. A plurality of support plates 8 are provided in the cavity 7. The support plates 8 are fixedly connected to the inner wall of the cavity 7. The support plates 8 are made of aluminum alloy. The setting of the cavity 7 can enable the butterfly plate 6 to achieve a lightweight design, reduce the energy consumption of the hydraulic actuator 3, reduce the burden on the hydraulic actuator 3, ensure the opening and closing speed of the valve, improve the control accuracy, and at the same time, the provided aluminum alloy support plates 8 can improve the overall strength of the butterfly plate 6 and reduce the probability of deformation;

[0029] In order to achieve the purpose of improving the control accuracy, a flow guiding structure 10 is provided in the installation groove 9. The flow guiding structure 10 includes an installation frame 101 inserted into the installation groove 9. Insert bars 102 are fixedly provided at the top and bottom of the installation frame 101. The insert bars 102 are inserted into the card slots 11. A plurality of rotating rods 103 are movably provided in the installation frame 101. Flow guiding plates 104 are fixedly provided on the plurality of rotating rods 103. Inserting the insert bars 102 at the top and bottom of the installation frame 101 into the card slots 11 can complete the installation and fixation of the flow guiding structure 10. The plurality of flow guiding plates 104 on the installation frame 101 can play a role in guiding the flow when the valve is opened, reduce the flow resistance and eddy current, and improve the control accuracy of the equipment for the flow rate.

[0030] Working principle: Before use, first install the flow guiding structure 10 in the installation groove 9. Insert the insert bars 102 at the top and bottom of the installation frame 101 into the card slots 11, and the installation and fixation of the flow guiding structure 10 can be completed. The plurality of flow guiding plates 104 on the installation frame 101 can play a role in guiding the flow when the valve is opened, reduce the flow resistance and eddy current, and improve the control accuracy of the equipment for the flow rate. When subsequent maintenance of the flow guiding structure 10 is required, pull the installation frame 101 to one side. The installation frame 101 drives the two insert bars 102 to move. When the insert bars 102 are completely separated from the card slots 11, the installation frame 101 can be detached from the butterfly plate 6, and relevant components can be repaired and replaced. The setting of the cavity 7 can enable the butterfly plate 6 to achieve a lightweight design, reduce the burden on the hydraulic actuator 3, ensure the opening and closing speed of the valve, and improve the control accuracy. At the same time, the provided aluminum alloy support plate 8 can improve the overall strength of the butterfly plate 6 and reduce the probability of deformation.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special programmable hydraulic butterfly valve for VPSA oxygen production, comprising a valve body (1), characterized in that: A valve seat is fixedly provided at the bottom of the valve body (1), a fixed bracket (2) is fixedly provided at the top of the valve body (1), a hydraulic actuator (3) is fixedly provided at the top of the fixed bracket (2), a connecting shaft (4) is provided at the bottom of the hydraulic actuator (3), a valve stem (5) is fixedly provided at the bottom end of the connecting shaft (4), the bottom end of the valve stem (5) penetrates through the top of the valve body (1) and the inner wall of the bottom of the valve body (1) and is movably connected to the valve seat, a butterfly plate (6) is fixedly provided on the valve stem (5), a plurality of mounting grooves (9) are provided on the surface of the butterfly plate (6), clamping grooves (11) are provided on both the top inner wall and the bottom inner wall of the mounting groove (9), and a flow guiding structure (10) is provided in the mounting groove (9).

2. The special programmable hydraulic butterfly valve for VPSA oxygen production according to claim 1, characterized in that: A cavity (7) is provided in the butterfly plate (6), a plurality of support plates (8) are provided in the cavity (7), the support plates (8) are fixedly connected to the inner wall of the cavity (7), and the support plates (8) are made of aluminum alloy.

3. The special programmable hydraulic butterfly valve for VPSA oxygen production according to claim 1, characterized in that: An upper valve sleeve and a lower valve sleeve are sleeved on the valve stem (5), a through hole is provided on the inner wall of the top of the valve body (1), the upper valve sleeve is movably connected to the through hole, and a packing set is provided between the inner wall of the through hole and the upper valve sleeve.

4. A special programmable hydraulic butterfly valve for VPSA oxygen production according to claim 1, characterized in that: A mounting hole is provided at the top of the valve seat, a tapered roller bearing is fixedly provided in the mounting hole, and the inner ring of the tapered roller bearing is fixedly sleeved on the valve stem (5).

5. A special programmable hydraulic butterfly valve for VPSA oxygen production according to claim 1, characterized in that: The flow guiding structure (10) includes a mounting frame (101) inserted into the mounting groove (9), a plurality of rotating rods (103) are movably provided in the mounting frame (101), and a flow guiding plate (104) is fixedly provided on each of the plurality of rotating rods (103).

6. The special program-controlled hydraulic butterfly valve for VPSA oxygen production according to claim 5, characterized in that: Insertion strips (102) are fixedly provided at both the top and the bottom of the mounting frame (101), and the insertion strips (102) are inserted into the clamping grooves (11).

Images