Oxygen distribution switch and intelligent gas path distribution system thereof

Abstract

The invention relates to an oxygen distribution switch and an intelligent gas path distribution system thereof in the technical field of gas flow distribution control. The oxygen distribution switch comprises a distribution body and two control mechanisms, an inlet C and an inlet B are formed in the two sides of the distribution body, cavity grooves are formed in the two end faces of the distribution body, the groove walls of the two cavity grooves are communicated with a D1 through opening and an E outlet, a first top protruding part is arranged at the groove bottom of each cavity groove, and first vent holes are formed in the top faces of the two first top protruding parts; each control mechanism comprises a valve body, an inlet A and a port D2 are formed in the outer end face of each valve body, the ports D2 are communicated with the ports D1, a sliding groove is formed in the inner end face of each valve body, a containing groove is formed in the groove bottom of each sliding groove, second top protruding parts are arranged at the groove bottom of each containing groove, second vent holes are formed in the top faces of the two second top protruding parts, and a movable iron core is arranged in each sliding groove in a sliding mode; a third vent hole is formed in the movable iron core, an elastic element is arranged in the containing groove, and the valve body is sleeved with an electromagnetic coil. The distribution switch is compact in layout and small in occupied space, and the system can automatically distribute oxygen gas path flow according to requirements.

Description

Technical Field

[0001] This invention relates to the field of airflow distribution control technology, and in particular to an oxygen distribution switch and its intelligent airflow distribution system. Background Technology

[0002] Currently, in engine oxygen supply systems, the oxygen circuit is controlled by a two-position two-way electromagnetic switch, and the flow rate into the combustion chamber after opening is a fixed value. It cannot automatically switch the flow rate according to the actual needs of the combustion chamber to match different combustion conditions, resulting in low combustion efficiency. Although traditional regulating valves have a certain flow regulation function, the existing regulating valves are large in structure and not flexible enough, which is not conducive to quick switching and installation in limited spaces. Summary of the Invention

[0003] In order to overcome the shortcomings in the background technology and solve the existing technical problems, the present invention discloses an oxygen distribution switch and its intelligent gas distribution system. The distribution switch has a compact layout and a high degree of integration, and can be installed in a limited space. The system can automatically distribute the oxygen gas flow according to the actual needs of the back-end load.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An oxygen distribution switch includes a distribution body and two control mechanisms symmetrically disposed at both ends of the distribution body. The distribution body has inlets C and B on its corresponding side walls. Each end face of the distribution body has a cavity in its middle, with the cavity walls connected to an outlet D1 and an outlet E. Each cavity has a first convex portion protruding from its bottom center, and the top surfaces of the two first convex portions each have first vent holes connecting inlets C and B respectively. Each control mechanism includes a valve body fixedly installed in the distribution body. The outer end faces of the two valve bodies have inlets A and outlet D2 away from outlet D1. Outlet D2 is connected to an external... The tube is connected to the D1 port. The valve body has a corresponding groove in the middle of the inner end face. Each groove has a receiving groove in the middle of the bottom. The bottom of the receiving groove has a second top protrusion. The top surfaces of the two second top protrusions are respectively connected to the A inlet and the D2 port. A moving iron core is slidably inserted in the groove. The moving iron core has a third vent hole that passes through the sides of both ends. The receiving groove has an elastic element that makes the moving iron core move against the first top protrusion. The valve body is fitted with an electromagnetic coil for energizing the moving iron core to move against the second top protrusion.

[0006] Furthermore, filters are installed at inlets A, B, and C.

[0007] Furthermore, a plug groove is provided at the center of both ends of the moving iron core, and a sealing plug is fixedly installed in the plug groove.

[0008] Furthermore, at least two third vent holes are evenly arranged around the circumference of the moving iron core.

[0009] Furthermore, the valve body has a two-step hole with a connecting slide groove at the center of its outer end face. A three-step column with the first two steps adapted and whose diameter decreases from the outside to the inside is inserted into the two-step hole. The third step of the three-step column is set as a second top protrusion. The elastic element is a spring sleeved on the second top protrusion.

[0010] Furthermore, both the D1 and D2 ports are detachably covered with caps by multiple screws, and the external tube is connected to the side walls of the two caps respectively.

[0011] Furthermore, the valve body has an annular groove on its outer wall in the middle, the electromagnetic coil is sleeved in the annular groove, and an annular shell is fixedly covered at the opening of the annular groove.

[0012] Furthermore, a sealing ring is provided between the outer edge of the cavity groove and the outer edge of the slide groove.

[0013] An intelligent gas distribution system includes an oxygen source, a control module, and an actuation chamber. The actuation chamber is equipped with an oxygen concentration sensor and a pressure sensor that are respectively signal-connected to the control module. The oxygen source is connected to the A inlet, B inlet, and C inlet of an oxygen distribution switch. The E outlet of the oxygen distribution switch is connected to the actuation chamber. The two electromagnetic coils of the oxygen distribution switch are electrically connected to the control module.

[0014] Furthermore, the oxygen source is connected to three throttle valves, which are respectively connected to the A inlet, B inlet and C inlet of the oxygen distribution switch.

[0015] By employing the technical solution described above, the present invention has the following beneficial effects:

[0016] The oxygen distribution switch disclosed in this invention integrates control mechanisms at both ends of the distribution body, enabling the moving iron core to move and reset using electromagnetic coils and elastic elements. When both control mechanisms are de-energized, only inlet A and outlet E are connected. When the two control mechanisms are switched on, inlet B and inlet C are switched on to outlet E, greatly improving the flexibility and speed of the switching action. The entire distribution switch has a compact layout, high integration, and small size, allowing it to be installed in limited spaces.

[0017] The intelligent gas distribution system disclosed in this invention can monitor the oxygen concentration and pressure in the actuation chamber through oxygen concentration sensors and pressure sensors and transmit them to the control module. The control module performs logical calculations based on the oxygen concentration and pressure information to determine the required oxygen flow rate and applies a control signal to the oxygen distribution switch. By utilizing the different flow rates from inlet A, inlet B, and inlet C to outlet E, one of the three input gas paths can be selected, which greatly improves the combustion efficiency of the engine. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the oxygen distribution switch described in this invention;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the oxygen distribution switch described in this invention;

[0020] Figure 3 This is a side view of the oxygen distribution switch described in this invention.

[0021] Figure 4 This is a schematic diagram of another side structure of the oxygen distribution switch described in this invention;

[0022] Figure 5 This is a control flow diagram of the system described in this invention.

[0023] In the diagram: 1. Distribution body; 101. Cavity; 102. First protrusion; 103. First vent; 2. C inlet; 3. B inlet; 4. Valve body; 401. Slide groove; 5. Moving iron core; 501. Third vent; 6. A inlet; 7. D2 port; 8. Three-step column; 801. Second protrusion; 802. Second vent;

[0024] 9. Sealing plug; 10. Sealing ring; 11. Electromagnetic coil; 12. Elastic element; 13. Cover; 14. Ring shell; 15. External tube; 16. E outlet. Detailed Implementation

[0025] The technical solution of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the accompanying drawings of the present invention for the convenience of describing the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation.

[0026] Example 1:

[0027] Combined with appendix Figure 1-4The oxygen distribution switch comprises a distribution body 1 and two control mechanisms symmetrically located at both ends of the distribution body 1. The distribution body 1 is specifically a cuboid, and the control mechanisms are cylindrical. The distribution body 1 has a C-inlet 2 and a B-inlet 3 at the center of its two corresponding side walls. Each end face of the distribution body 1 has a cavity 101 at its center, and the walls of the two cavities 101 are connected by a D1 inlet and an E outlet 16. Figure 1 Not shown in the text, specifically in Figure 1 In terms of orientation, C inlet 2 is on the upper side of the distribution body 1, B inlet 3 is on the lower side, D1 outlet is on the rear side of the distribution body 1 corresponding to the left cavity 101, and E outlet 16 is on the front side of the distribution body 1 corresponding to the right cavity 101; each cavity 101 has a first top protrusion 102 protruding in the middle of the bottom surface, and the top surfaces of the two first top protrusions 102 are respectively provided with first vent holes 103 connecting C inlet 2 and B inlet 3. The top of the first top protrusion 102 is chamfered to reduce the top surface area and facilitate contact sealing of the first vent holes 103;

[0028] Each control mechanism includes a valve body 4 fixedly installed in the distribution body 1, such as Figure 2 As shown, both the distribution body 1 and the valve body 4 have an integrally formed connecting plate with connecting holes on their outer walls, which are fixedly connected by a bolt assembly; the outer end faces of the two valve bodies 4 are provided with an A inlet 6 and a D2 outlet 7 away from the D1 outlet, so as to... Figure 1 In terms of orientation, inlet A 6 is located on the left end face of the left valve body 4, and port D2 7 is located on the right end face of the right valve body 4. Port D2 7 is connected to port D1 via an external tube 15. Specifically, both ports D1 and D2 7 are detachably covered with caps 13 by multiple screws. The external tube 15 is connected to the side walls of the two caps 13 respectively, which ensures a tighter connection at both ends of the external tube 15 and prevents it from breaking. The inner end face of the valve body 4 has a corresponding groove 401 in the middle, and the grooves of the grooves 101 and the corresponding grooves 401 are connected. As needed, the cavity... A sealing ring 10 is provided between the outer edge of the groove opening of groove 101 and the outer edge of the groove opening of slide 401 to prevent oxygen leakage at the connection between valve body 4 and distributor 1; each slide 401 has a receiving groove in the middle of the bottom of the groove, and a second top protrusion 801 is raised in the middle of the bottom surface of the receiving groove. The second top protrusion 801 is slightly inserted into the slide 401 so that the moving iron core 5 can first contact the second top protrusion 801. The top surface of the two second top protrusions 801 is provided with a second vent hole 802 that connects to inlet A 6 and outlet D2 7 respectively. Similarly, the top of the second top protrusion 801 can also be chamfered.

[0029] A moving iron core 5 is slidably inserted into the slide groove 401. The moving iron core 5 has a third vent 501 extending through the sides of both end faces. This means the two slide groove 401 chambers separated by the moving iron core 5 are always connected. At least two third vents 501 are evenly arranged around the circumference of the moving iron core 5 to ensure uniform gas dispersion and flow. If necessary, a plug groove is provided at the center of each end face of the moving iron core 5, and a sealing plug 9 is fixedly fitted into the plug groove. The sealing plug 9 can be a rubber vulcanized part or a plastic insert. An elastic element 12 is provided near the groove wall in the receiving groove to give the moving iron core 5 a tendency to move against the first protrusion 102. That is, without other external force, both moving iron cores 5 will move towards each other under the elastic force of the corresponding elastic element 12, causing the sealing plug 9 to abut against and seal the first vent 103. The valve body 4 is fitted with an electromagnetic coil 11 for energizing and controlling the movement of the moving iron core 5 to abut against the second protrusion 801. Figure 1 The specific layout requires the moving iron core 5 to expose the inner port of the corresponding electromagnetic coil 11. After reaching the same point, the moving iron core 5 will move into the electromagnetic coil 11 under the action of electromagnetic force. Specifically, the outer wall of the middle part of the valve body 4 is provided with an annular groove, the electromagnetic coil 11 is sleeved in the annular groove, and the annular groove opening cover 13 is provided with a fixed annular shell 14 to protect the electromagnetic coil 11 and prevent interference.

[0030] As required, the second protrusion 801 is not an integral part of the valve body 4, as shown in the attached diagram. Figure 1 As shown, the valve body 4 has a two-step hole with a connecting slide groove 401 in the center of the outer end face. A three-step column 8 with the first two steps adapted and whose diameter decreases from the outside to the inside is inserted into the two-step hole. The third step of the column 8 forms a second top protrusion 801. The space between the third step of the column 8 and the second step of the two-step hole forms a partial receiving groove. The elastic element 12 is a spring sleeved on the second top protrusion 801, which facilitates disassembly and maintenance. In addition, inlet A 6, inlet B 3 and inlet C 2 can also be set as stepped holes. A filter screen is installed at the bottom of the first step hole section and a fastening gasket is pressed and fixed.

[0031] The oxygen distribution switch of the present invention is used to... Figure 1 As indicated by the orientation, it has the following three working states:

[0032] First, both electromagnetic coils 11 are de-energized, and the two moving iron cores 5 move towards each other, blocking the two first vent holes 103. Oxygen entering through inlet A 6 enters the left cavity 101 through the left second vent hole 802 and the third vent hole 501, then enters the D2 vent hole 7 through the D1 port and the external tube 15, and then enters the right cavity 101 through the right second vent hole 802 and the third vent hole 501, and flows out from outlet E 16; that is, inlet A 6 is connected to outlet E 16, while inlet B 3 and inlet C 2 are not connected to outlet E 16.

[0033] Second, when the left electromagnetic coil 11 is energized and the right electromagnetic coil 11 is de-energized, the left moving iron core 5 moves to block the left second vent 802 and A inlet 6, and the right moving iron core 5 blocks the right first vent 103 and C inlet 2. Oxygen entering through B inlet 3 enters the left cavity 101 through the left first vent 103, then enters the D2 vent 7 through the D1 port and external tube 15, and then enters the right cavity 101 through the right second vent 802 and third vent 501, and flows out from the E outlet 16. That is, B inlet 3 is connected to E inlet, while A inlet 6 and C inlet 2 are not connected to E outlet 16.

[0034] Third, the left electromagnetic coil 11 is de-energized, the right electromagnetic coil 11 is energized, the left moving iron core 5 blocks the left first vent 103 and B inlet 3, and the right moving iron core 5 moves to block the right second vent 802 and D2 outlet 7. Oxygen entering from C inlet 2 directly enters the right cavity 101 through the right first vent 103 and then flows out from E outlet 16; that is, C inlet 2 is connected to E inlet, while A inlet 6 and B inlet 3 are not connected to E outlet 16.

[0035] Example 2:

[0036] A smart gas distribution system, such as Figure 5 As shown, the oxygen distribution switch described in Embodiment 1 can be applied, and further includes an oxygen source, a control module, and an actuation chamber. The actuation chamber is equipped with an oxygen concentration sensor and a pressure sensor, which are respectively connected to the control module. The oxygen source is connected to inlet A 6, inlet B 3, and inlet C 2 of the oxygen distribution switch. Specifically, the oxygen source can be an oxygen storage tank, which is connected to a main pipe with a main switch. The main pipe is connected to three branch pipes, which are respectively connected to inlet A 6, inlet B 3, and inlet C 2. The outlet E 16 of the oxygen distribution switch is connected to the actuation chamber. The two electromagnetic coils 11 of the oxygen distribution switch are electrically connected to the control module. The oxygen concentration sensor and pressure sensor are connected to the control module. The force sensor monitors the oxygen concentration and pressure in the actuation chamber and transmits the data to the control module. The control module performs logical calculations based on the oxygen concentration and pressure information to determine the required oxygen flow rate and applies a control signal to the oxygen distribution switch. The oxygen distribution switch has three different conduction paths with different flow rates. The corresponding flow rate path is opened according to the control signal. The flow rates of the three conduction paths of the oxygen distribution switch are generally fixed and not easy to adjust. Therefore, three throttle valves can be connected to the three branch pipes as needed. The three throttle valves are respectively connected to the A inlet 6, B inlet 3, and C inlet 2 of the oxygen distribution switch, and the fixed flow rate value can be adjusted in advance through the throttle valves.

[0037] The parts of this invention not described in detail are prior art. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims within this invention, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. An oxygen distribution switch, characterized in that: The system includes a distribution body and two control mechanisms symmetrically located at both ends of the distribution body. The distribution body has inlets C and B on its corresponding side walls. Each end face of the distribution body has a cavity in its middle, with the cavity walls connected to an outlet D1 and an outlet E. Each cavity has a first convex part protruding from the middle of its bottom surface, and the top surfaces of the two first convex parts each have a first vent hole connecting inlet C and outlet B, respectively. Each control mechanism includes a valve body fixedly installed in the distribution body. The outer end faces of the two valve bodies have inlets A and outlet D2 away from outlet D1. Outlet D2 is connected to outlet D1 via an external pipe. The valve body has corresponding grooves in the middle of the inner end face of the valve body. Each groove has a receiving groove in the middle of its bottom. The receiving groove has a second top protrusion in the middle of its bottom surface. The top surfaces of the two second top protrusions are respectively provided with second vent holes that connect to the A inlet and the D2 outlet. A moving iron core is slidably inserted in the groove. The moving iron core has a third vent hole that passes through the sides of both ends. The receiving groove has an elastic element that makes the moving iron core move against the first top protrusion. The valve body is fitted with an electromagnetic coil for energizing and controlling the movement of the moving iron core to abut against the second top protrusion.

2. The oxygen distribution switch according to claim 1, characterized in that: The A, B, and C inlets are all equipped with filters.

3. The oxygen distribution switch according to claim 1, characterized in that: Both ends of the moving iron core are provided with a groove at the center of their respective ends, and a sealing plug is fixedly installed in the groove.

4. The oxygen distribution switch according to claim 1, characterized in that: At least two third vent holes are evenly arranged around the circumference of the moving iron core.

5. The oxygen distribution switch according to claim 1, characterized in that: The valve body has a two-step hole with a connecting slide groove in the center of the outer end face. A three-step column with the first two steps adapted and the diameter decreasing from the outside to the inside is inserted into the two-step hole. The third step of the column is set as the second top protrusion. The elastic element is set as a spring sleeved on the second top protrusion.

6. The oxygen distribution switch according to claim 1, characterized in that: Both the D1 and D2 ports are detachably covered with caps by multiple screws, and the external tubes are respectively connected to the side walls of the two caps.

7. The oxygen distribution switch according to claim 1, characterized in that: The valve body has an annular groove on its outer wall in the middle, the electromagnetic coil is sleeved in the annular groove, and an annular shell is fixedly covered at the opening of the annular groove.

8. The oxygen distribution switch according to claim 1, characterized in that: A sealing ring is provided between the outer edge of the cavity groove and the outer edge of the slide groove.

9. A smart gas distribution system using any one of the oxygen distribution switches in claims 1 to 8, characterized in that: It includes an oxygen source, a control module, and an actuation chamber. The actuation chamber is equipped with an oxygen concentration sensor and a pressure sensor that are respectively connected to the control module via signals. The oxygen source is connected to the A, B, and C inlets of the oxygen distribution switch, respectively. The E outlet of the oxygen distribution switch is connected to the actuation chamber. The two electromagnetic coils of the oxygen distribution switch are electrically connected to the control module.

10. The intelligent gas distribution system according to claim 9, characterized in that: The oxygen source is connected to three throttle valves, which are respectively connected to the A inlet, B inlet and C inlet of the oxygen distribution switch.

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