Synchronous control device for feeding and discharging pistons of bed type RTO box body
By employing a synchronous control device in the bed-type RTO equipment, multiple pistons can be controlled by a single drive rod, thus solving the problems of complex and costly piston control and achieving efficient and low-cost operation of the equipment.
Patent Information
- Application Number
- CN202423220564.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing bed-type RTO equipment, piston control is complex, requires multiple pistons, is costly, and is prone to control errors, affecting equipment operation.
A bed-type RTO housing inlet and outlet piston synchronous control device is adopted, which controls the piston movement in multiple pipelines through a drive rod, reducing the use of valves and realizing the synchronous conversion of pipeline gas transmission.
It reduced equipment costs, simplified the control process, reduced electrical operating errors, and improved the reliability of normal equipment operation.
Smart Images

Figure CN223939447U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of RTO equipment technology, and more specifically relates to a synchronous control device for the inlet and outlet pistons of a bed-type RTO chamber. Background Technology
[0002] like Figure 3 As shown, in an existing bed-type RTO, its housing contains multiple chambers (endothermic chamber I and regenerator chamber II). Each chamber is equipped with an inlet pipe and an outlet pipe, and both the inlet and outlet pipes are fitted with pistons (AD-101, AD-102, AD-103, AD-104). When pistons AD-101 and AD-104 are open and AD-102 and AD-103 are closed, gas enters from the inlet pipe of regenerator chamber I and exits from the outlet pipe of regenerator chamber II. Conversely, when pistons AD-102 and AD-103 are open and AD-101 and AD-104 are closed, gas enters from the inlet pipe of regenerator chamber II and exits from the outlet pipe of regenerator chamber I, thus achieving chamber circulation.
[0003] However, the above control method uses a large number of pistons, requiring the controller to control at least two pistons to open and close simultaneously, which is costly. Especially when there are more chambers, the more air inlet and outlet pipes not only increase the cost, but also often cause control errors, affecting the normal operation of the RTO equipment. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a bed-type RTO chamber piston synchronous control device, which reduces valves, lowers costs, and makes control more convenient.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bed-type RTO chamber piston synchronous control device, comprising interconnected pipe groups, the pipe groups including a first pipe, a second pipe, a control pipe, a third pipe, a fourth pipe, and a fifth pipe, the first pipe connecting to a heat storage chamber I, the second pipe connecting to a heat storage chamber II, the control pipe connecting the first pipe and the second pipe, the third, fourth, and fifth pipes respectively connected to the two ends and the middle of the control pipe, the third and fourth pipes both connected to an air inlet duct, the fifth pipe connected to an air outlet duct, a drive rod disposed within the control pipe, a first piston and a second piston respectively corresponding to the first and second pipes on the drive rod, a drive device connected to the drive rod, the first piston and the second piston being in a sealed sliding connection with the inner wall of the control pipe.
[0006] Furthermore, the first piston and the second piston are on the same side of the first pipe and the second pipe, respectively.
[0007] Furthermore, the first pipe is located between the third and fifth pipes, and the second pipe is located between the fourth and fifth pipes.
[0008] Furthermore, the driving device includes a driving cylinder, an electric telescopic rod, or an electromagnetic telescopic rod.
[0009] Compared with the prior art, the beneficial effects of this utility model are: by controlling the movement of multiple pistons in the pipeline simultaneously through the action of a drive rod, the synchronous conversion of pipeline gas transmission is realized, the use of valves is reduced, costs are lowered, control is more convenient, and electrical operational errors are reduced. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the current state of the synchronous control device for the inlet and outlet pistons of the bed-type RTO chamber of this utility model.
[0011] Figure 2 This is a schematic diagram of the bed-type RTO chamber piston synchronous control device in state two.
[0012] Figure 3 This is a schematic diagram of the piping control for an existing bed-type RTO enclosure.
[0013] Reference numerals: Heat storage chamber I 1; Heat storage chamber II 2; First pipe 3; Second pipe 4; Control pipe 5; Third pipe 6; Fourth pipe 7; Fifth pipe 8; Inlet air duct 9; Outlet air duct 10; Drive rod 11; First piston 12; Second piston 13; Drive device 14. Detailed Implementation
[0014] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation 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. They should not be construed as limiting the specific protection scope of this utility model.
[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.
[0016] Reference Figures 1 to 3 The present invention will be further described below.
[0017] A bed-type RTO chamber piston synchronous control device includes an interconnected pipe group, comprising a first pipe 3, a second pipe 4, a control pipe 5, a third pipe 6, a fourth pipe 7, and a fifth pipe 8. The first pipe 3 connects to a heat storage chamber I1, the second pipe 4 connects to a heat storage chamber II2, and the control pipe 5 connects to the first pipe 3 and the second pipe 4. The third pipe 6, the fourth pipe 7, and the fifth pipe 8 are respectively connected to the two ends and the middle of the control pipe 5. The third pipe 6 and the fourth pipe 7 are both connected to an air inlet duct 9, and the fifth pipe 8 is connected to an air outlet duct 10. A drive rod 11 is provided inside the control pipe 5, and a first piston 12 and a second piston 13 corresponding to the first pipe 3 and the second pipe 4 are respectively provided on the drive rod 11. A drive device 14 is connected to the drive rod 11, and the first piston 12 and the second piston 13 are slidably and sealingly connected to the inner wall of the control pipe 5.
[0018] like Figure 1 and Figure 2 As shown, in this example, preferably, the first piston 12 and the second piston 13 are on the same side of the first pipe 3 and the second pipe 4, respectively.
[0019] like Figure 1 and Figure 2 As shown, in this example, preferably, the first pipe 3 is located between the third pipe 6 and the fifth pipe 8, and the second pipe 4 is located between the fourth pipe 7 and the fifth pipe 8.
[0020] In this example, the preferred embodiment is that the driving device 14 includes a driving cylinder, an electric telescopic rod, or an electromagnetic telescopic rod.
[0021] like Figure 1 and Figure 2 As shown, when the drive device 14 drives the drive rod 11 to move to the left so that the first piston 12 and the second piston 13 are located to the left of the first pipe 3 and the second pipe 4 respectively, the first pipe 3 and the third pipe 6 are connected through the control pipe 5, the second pipe 4 and the fifth pipe 8 are connected through the control pipe 5, the fourth pipe 7 is sealed by the second piston 13 alone, and then the air intake duct 9 supplies air to the third pipe 6. After passing through the control pipe 5 and the first pipe 3, the gas enters the heat storage chamber I1. The gas is discharged from the second pipe 4 on the heat storage chamber II2 through the fifth pipe 8 to the air outlet duct 10.
[0022] When the drive device 14 drives the drive rod 11 to move to the right so that the first piston 12 and the second piston 13 are respectively located on the right side of the first pipe 3 and the second pipe 4, the first pipe 3 and the fifth pipe 8 are connected through the control pipe 5, the second pipe 4 and the fourth pipe 7 are connected through the control pipe 5, the third pipe 6 is sealed by the first piston 12 alone, and then the air intake duct 9 supplies gas to the fourth pipe 7. After passing through the control pipe 5 and the second pipe 4, the gas enters the heat storage chamber II2. The gas is discharged from the first pipe 3 on the heat storage chamber I1 through the fifth pipe 8 to the air outlet duct 10.
[0023] The movement of pistons in multiple pipelines can be controlled simultaneously by the action of a single drive rod 11, achieving synchronous switching of gas transmission in the pipeline, reducing the use of valves, lowering costs, making control more convenient, and reducing electrical operational errors.
[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A bed-type RTO chamber inlet / outlet piston synchronous control device, characterized in that: The system includes an interconnected pipe group comprising a first pipe, a second pipe, a control pipe, a third pipe, a fourth pipe, and a fifth pipe. The first pipe connects to a heat storage chamber I, the second pipe connects to a heat storage chamber II, and the control pipe connects to the first and second pipes. The third, fourth, and fifth pipes are respectively connected to the two ends and the middle of the control pipe. The third and fourth pipes are both connected to an air inlet duct, and the fifth pipe is connected to an air outlet duct. A drive rod is installed inside the control pipe, and a first piston and a second piston, corresponding to the first and second pipes respectively, are installed on the drive rod. A drive device is connected to the drive rod, and the first and second pistons are in a sealed sliding connection with the inner wall of the control pipe.
2. The bed-type RTO chamber inlet / outlet piston synchronous control device according to claim 1, characterized in that: The first piston and the second piston are on the same side of the first pipe and the second pipe, respectively.
3. The bed-type RTO chamber inlet / outlet piston synchronous control device according to claim 1, characterized in that: The first pipe is located between the third and fifth pipes, and the second pipe is located between the fourth and fifth pipes.
4. The bed-type RTO chamber inlet / outlet piston synchronous control device according to claim 1, characterized in that: The driving device includes a driving cylinder, an electric telescopic rod, or an electromagnetic telescopic rod.