Hydrogen purification integrated control valve

Abstract

The present application relates to a hydrogen purification integrated control valve, which belongs to the technical field of hydrogen purification, and includes: a stator, which is provided with a plurality of valve seat holes penetrating the upper and lower end surfaces thereof and arranged in a circumference, and a stator vent hole communicating with each valve seat hole is also provided on the side wall of the stator; an end cover, which includes a first end cover located above the stator and forming an upper chamber with the stator, and a second end cover located below the stator and forming a lower chamber with the stator, the first end cover is provided with a first vent hole, and the second end cover is provided with a second vent hole; a rotor, which includes a first rotor located in the upper chamber and connecting or disconnecting any one or more valve seat holes with the first vent hole, and a second rotor located in the lower chamber and connecting or disconnecting any one or more valve seat holes with the second vent hole. The present application not only reduces the manufacturing cost of the equipment, but also has a compact structure of the equipment, greatly reduces the floor space occupied, can realize the equipment as a skid, and greatly reduces the difficulty of on-site installation.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogen purification, and in particular to a hydrogen purification integrated control valve. Background Art

[0002] Hydrogen is a clean energy that will replace fossil energy in the future. It is used in hydrogen fuel cells, which convert hydrogen into electricity to drive motors and provide power for various types of vehicles. Hydrogen needs to reach a high purity for use in fuel cells. Therefore, hydrogen must be purified before being injected into fuel cells. The hydrogen purification process is a complex adsorption process.

[0003] In conventional hydrogen purification devices, the control valve used to switch the process flow is a single-channel control valve. Generally, a purification device with nine adsorption tanks requires dozens of control valves to form a control valve group to control the switching of the process flow. The shortcomings of this device include: high equipment cost, large footprint, and difficult on-site installation and construction. Summary of the invention

[0004] The embodiment of the present application provides a hydrogen purification integrated control valve to solve the problem that a hydrogen purification device in the related art uses a single-channel control valve, resulting in high equipment cost, large floor space, and difficult on-site installation and construction.

[0005] The embodiment of the present application provides a hydrogen purification integrated control valve, comprising:

[0006] A stator, wherein the stator is provided with a plurality of valve seat holes penetrating the upper and lower end surfaces thereof and arranged in a circumferential manner, and a stator vent hole communicating with each valve seat hole is also provided on the side wall of the stator;

[0007] An end cover, the end cover comprising a first end cover located above the stator and forming an upper chamber with the stator, and a second end cover located below the stator and forming a lower chamber with the stator, the first end cover being provided with a first vent hole, and the second end cover being provided with a second vent hole;

[0008] The rotor includes a first rotor located in the upper chamber and connecting or disconnecting any one or more valve seat holes with the first vent hole, and a second rotor located in the lower chamber and connecting or disconnecting any one or more valve seat holes with the second vent hole.

[0009] In some embodiments: the first rotor is provided with a plurality of first rotor air vents which penetrate through its upper and lower end surfaces and are connected or disconnected with the plurality of valve seat holes, and the second rotor is provided with a plurality of second rotor air vents which penetrate through its upper and lower end surfaces and are connected or disconnected with the plurality of valve seat holes.

[0010] In some embodiments: a plurality of pressure-equalizing blind holes are formed on one end of the first rotor close to the stator, and at least two of the plurality of pressure-equalizing blind holes are interconnected.

[0011] In some embodiments: a first valve seat slidably connected to the first rotor is provided at one end of the valve seat hole close to the first rotor, and a second valve seat slidably connected to the second rotor is provided at one end of the valve seat hole close to the second rotor, and the first valve seat and the second valve seat are both tubular structures.

[0012] In some embodiments: a valve seat spring is provided in the valve seat hole for pushing the first valve seat to seal against the first rotor and for pushing the second valve seat to seal against the second rotor; the first valve seat, the second valve seat and the valve seat hole are all sealed and connected via a sealing ring.

[0013] In some embodiments: it also includes a valve stem that drives the first rotor and the second rotor to rotate synchronously, the valve stem penetrates the first end cover and the stator and is coaxially rotatably connected to the first end cover and the stator through a seal, and the valve stem penetrates the first rotor and is coaxially fixedly connected to the first rotor and the second rotor.

[0014] In some embodiments: the valve stem is connected to the first rotor via a spline or a flat key, the bottom of the valve stem is fixedly connected to the second rotor via a flange, the stator and the valve stem are connected via a radial bearing, the first rotor and the first end cover are connected via a first thrust bearing, and the second rotor and the second end cover are connected via a second thrust bearing.

[0015] In some embodiments: the sealing member includes packing filled between the first end cover and the valve stem, between the stator and the valve stem, and a packing pressing ring, a butterfly spring and a packing gland for pressing the packing.

[0016] In some embodiments: a first cylinder sealedly connected to a first end cover is provided at the top of the stator, and two ends of the first cylinder are sealedly connected to the stator and the first end cover respectively through sealing rings; a second cylinder sealedly connected to a second end cover is provided at the bottom of the stator, and two ends of the second cylinder are sealedly connected to the stator and the second end cover respectively through sealing rings.

[0017] In some embodiments: the upper and lower end surfaces of the stator are provided with a plurality of threaded holes arranged in a circumference, the first end cover and the second end cover are provided with a plurality of through holes matching the threaded holes, and the first end cover and the second end cover are connected to the stator by bolts.

[0018] The beneficial effects of the technical solution provided by this application include:

[0019] The embodiment of the present application provides a hydrogen purification integrated control valve. Since the hydrogen purification integrated control valve of the present application is provided with a stator, the stator is provided with a plurality of valve seat holes penetrating the upper and lower end surfaces thereof and arranged in a circumferential manner, and a stator air vent communicating with each valve seat hole is also provided on the side wall of the stator; an end cover, the end cover includes a first end cover located above the stator and forming an upper chamber with the stator, and a second end cover located below the stator and forming a lower chamber with the stator, the first end cover is provided with a first air vent, and the second end cover is provided with a second air vent; a rotor, the rotor includes a first rotor located in the upper chamber and connecting or disconnecting any one or more valve seat holes with the first air vent, and a second rotor located in the lower chamber and connecting or disconnecting any one or more valve seat holes with the second air vent.

[0020] Therefore, the hydrogen purification integrated control valve of the present application is provided with a rotatable first rotor and a second rotor at the upper and lower ends of the stator, respectively. When the first rotor rotates, any one or more valve seat holes are connected or disconnected with the first vent hole, and when the second rotor rotates, any one or more valve seat holes are connected or disconnected with the second vent hole, so as to realize the connection or disconnection of the first vent hole and the second vent hole with the valve seat hole, respectively, so as to achieve the integration of multiple single control valves into an integrated control valve of the present application to control the switching of multiple pore channels. The present application not only reduces the manufacturing cost of the equipment, but also has a compact structure, greatly reduces the floor space, can realize the equipment as a skid, and greatly reduces the difficulty of on-site installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A structural stereogram of an embodiment of the present application;

[0023] Figure 2 A top view of the structure of an embodiment of the present application;

[0024] Figure 3 for Figure 2 The cross-sectional view along the AA direction;

[0025] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0026] Figure 5 for Figure 2 The cross-sectional view along the BB direction;

[0027] Figure 6A three-dimensional diagram of the stator structure of an embodiment of the present application;

[0028] Figure 7 A top view of the stator structure of an embodiment of the present application;

[0029] Figure 8 for Figure 7 Cross-sectional view along CC direction;

[0030] Fig. 9 for Figure 8 A partial enlarged view of point B in the middle;

[0031] Fig.10 A structural stereogram of a first rotor according to an embodiment of the present application;

[0032] Fig.11 A first perspective structural stereogram of a first rotor according to another embodiment of the present application;

[0033] Fig.12 A second perspective structural stereoscopic diagram of a first rotor according to another embodiment of the present application;

[0034] Fig.13 A top view of the structure of a first rotor according to another embodiment of the present application;

[0035] Fig.14 for Fig.13 The cross-sectional view along the DD direction;

[0036] Fig.15 A structural stereogram of a second rotor according to an embodiment of the present application;

[0037] Fig.16 A top view of the structure of the second rotor of an embodiment of the present application;

[0038] Fig.17 for Fig.16 Cross-sectional view along EE direction.

[0039] Reference numerals:

[0040] 1. Stator; 11. Valve seat hole; 12. Stator vent hole; 13. Radial bearing; 14. Stator center hole; 15. Threaded hole; 16. First valve seat; 17. Second valve seat; 18. Valve seat spring;

[0041] 2. first end cover; 21. first vent hole; 22. upper chamber; 23. first thrust bearing;

[0042] 3. Second end cover; 31. Second vent hole; 32. Lower chamber; 33. Second thrust bearing;

[0043] 4. first rotor; 41. first rotor vent hole; 42. first rotor center hole; 43. first thrust bearing mounting groove; 44. pressure equalizing blind hole;

[0044] 5. Second rotor; 51. Second rotor vent hole; 52. Second thrust bearing mounting groove; 53. Flange mounting hole;

[0045] 6. Valve stem; 61. Flange; 62. Flat key; 63. Packing; 64. Packing ring; 65. Butterfly spring; 66. Packing gland; 67. Screws;

[0046] 7. First cylinder; 8. Second cylinder; 9. Bolt. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] The embodiment of the present application provides a hydrogen purification integrated control valve, which can solve the problem that the hydrogen purification device in the related art uses a single-channel control valve, resulting in high equipment cost, large floor space, and difficult on-site installation and construction.

[0049] See also Figures 1 to 3 and Figure 5 , Figure 6 As shown, the embodiment of the present application provides a hydrogen purification integrated control valve, comprising:

[0050] The stator 1 is a cylindrical structure, and an annular boss is provided at the upper and lower ends of the stator 1. The annular boss of the stator 1 is provided with a plurality of valve seat holes 11 that penetrate the upper and lower end surfaces thereof and are arranged in a circumference. The specific number of the valve seat holes 11 is set according to specific conditions. In this embodiment, nine valve seat holes 11 are provided, and the nine valve seat holes 11 are evenly arranged along the circumferential direction of the stator 1.

[0051] The side wall of the stator 1 is also provided with stator vent holes 12 communicating with the valve seat holes 11, and the opening direction of the stator vent holes 12 is perpendicular to the opening direction of the valve seat holes 11. The stator vent holes 12 are connected to the adsorption tank of purified hydrogen through a ventilation pipe, and the stator vent holes 12 and the ventilation pipe are connected by threaded connection or flange connection.

[0052] The end cover includes a first end cover 2 located above the stator 1 and forming an upper chamber 22 with the stator 1, and a second end cover 3 located below the stator 1 and forming a lower chamber 32 with the stator. The first end cover 2 is provided with a first vent hole 21, and the second end cover 3 is provided with a second vent hole 31. The first vent hole 21 of the first end cover 2 is communicated with the upper chamber 22, and the second vent hole 31 of the second end cover 3 is communicated with the lower chamber 32.

[0053] The rotor includes a first rotor 4 located in the upper chamber 22 and connecting or disconnecting any one or more valve seat holes 11 with the first vent hole 21, and a second rotor 5 located in the lower chamber 32 and connecting or disconnecting any one or more valve seat holes 11 with the second vent hole 31. The first rotor 4 connects or disconnects any one or more valve seat holes 11 with the first vent hole 21 by rotating in the upper chamber 22, thereby realizing the switching of the first vent hole 21 with the plurality of valve seat holes 11. The second rotor 5 connects or disconnects any one or more valve seat holes 11 with the second vent hole 31 by rotating in the lower chamber 32, thereby realizing the switching of the second vent hole 31 with the valve seat hole 11.

[0054] The hydrogen purification integrated control valve of the embodiment of the present application is provided with a rotatable first rotor 4 and a second rotor 5 at the upper and lower ends of the stator 1, respectively. When the first rotor 4 rotates, any one or more valve seat holes 11 are connected or disconnected with the first vent hole 21, and when the second rotor 5 rotates, any one or more valve seat holes 11 are connected or disconnected with the second vent hole 31, so as to realize the connection or disconnection of the first vent hole 21 and the second vent hole 31 with the valve seat hole 11, respectively, so as to achieve the integration of multiple single control valves into an integrated control valve of the present application to control the switching of multiple pore channels. The present application not only reduces the manufacturing cost of the equipment, but also has a compact structure of the equipment, greatly reduces the floor space, can realize the equipment as a skid, and greatly reduces the difficulty of on-site installation. The hydrogen purification integrated control valve of the present application can be used as a raw hydrogen inlet valve, and can also be used as a finished hydrogen outlet valve.

[0055] In some alternative embodiments: See Figure 5 , Fig.10 , Figures 15 to 17As shown, the embodiment of the present application provides a hydrogen purification integrated control valve, wherein a plurality of first rotor vents 41 penetrating the upper and lower end surfaces thereof and connected or disconnected with a plurality of valve seat holes 11 are provided on the first rotor 4 of the hydrogen purification integrated control valve, and the first rotor 4 realizes the connection or disconnection of the plurality of first rotor vents 41 with the plurality of valve seat holes 11 through rotational motion. The plurality of first rotor vents 41 of the embodiment of the present application and the plurality of valve seat holes 11 are located on the same circumference, the number of the first rotor vents 41 is less than the number of the valve seat holes 11, and the specific number and arrangement position of the first rotor vents 41 are specifically set according to actual needs, and the embodiment of the present application has five first rotor vents 41.

[0056] The second rotor 5 is provided with a plurality of second rotor vent holes 51 penetrating the upper and lower end surfaces thereof and connected or disconnected with the plurality of valve seat holes 11. The second rotor vent holes 51 are connected or disconnected with the plurality of valve seat holes 11 through rotational motion. The plurality of second rotor vent holes 51 and the plurality of valve seat holes 11 of the embodiment of the present application are located on the same circumference, and the number of the second rotor vent holes 51 is less than the number of the valve seat holes 11. The specific number and arrangement position of the second rotor vent holes 51 are specifically set according to actual needs. The embodiment of the present application is provided with four second rotor vent holes 51.

[0057] When the hydrogen purification integrated control valve of the embodiment of the present application is used as a raw hydrogen inlet valve, the second vent hole 31 is used to connect the raw hydrogen to be purified. When the second rotor vent hole 51 connects the second vent hole 31 with any one or more valve seat holes 11, the raw hydrogen enters the second vent hole 31, the second rotor vent hole 51, the valve seat hole 11 and the stator vent hole 12 in sequence and finally enters the adsorption tank for adsorption purification. When a valve seat hole 11 is fed with raw hydrogen, the valve seat hole 11 and the first rotor vent hole 41 are in a closed state.

[0058] When the hydrogen purification integrated control valve of the embodiment of the present application is used as a raw hydrogen inlet valve, the first vent hole 21 is used to connect the desorbed gas storage tank. When the first rotor vent hole 41 connects the first vent hole 21 with any one or more valve seat holes 11, the desorbed gas purged from the adsorption tank sequentially enters the stator vent hole 12, the valve seat hole 11, the first rotor vent hole 41, the first vent hole 21 and finally enters the desorbed gas storage tank. When a valve seat hole 11 is passed with purge gas, the valve seat hole 11 and the second rotor vent hole 51 are in a closed state.

[0059] In some alternative embodiments: See Figure 5 , Figures 11 to 14As shown, the embodiment of the present application provides a hydrogen purification integrated control valve, and a plurality of equalizing blind holes 44 are further provided on the end of the first rotor 4 close to the stator 1 of the hydrogen purification integrated control valve, and at least two of the plurality of equalizing blind holes 44 are interconnected. The embodiment of the present application is provided with eight equalizing blind holes 44, wherein two equalizing blind holes 44 are a pair of interconnected ones, and the two interconnected equalizing blind holes 44 are used to balance the gas pressure in the two adsorption tanks connected to the valve seat holes 11 when they are respectively connected to the two valve seat holes 11.

[0060] When the hydrogen purification integrated control valve of the embodiment of the present application is used as a finished hydrogen outlet valve, the finished hydrogen flows out of the adsorption tank and enters the stator vent hole 12, the valve seat hole 11, the second rotor vent hole 51 and the second vent hole 31 in sequence, and finally enters and exits the finished gas storage tank. The two interconnected pressure equalizing blind holes 44 are used to balance the air pressure in the two adsorption tanks connected to the valve seat holes 11 when they are respectively connected to the two valve seat holes 11, so as to keep the air pressure in the adsorption tanks the same.

[0061] In some alternative embodiments: See Figures 5 to 9 As shown, the embodiment of the present application provides a hydrogen purification integrated control valve, in which a first valve seat 16 slidably connected to the first rotor 4 is provided at one end of the valve seat hole 11 close to the first rotor 4, and a second valve seat 17 slidably connected to the second rotor 5 is provided at one end of the valve seat hole 11 close to the second rotor 5, and both the first valve seat 16 and the second valve seat 17 are tubular structures. A valve seat spring 18 is provided in the valve seat hole 11 to push the first valve seat 16 to seal with the first rotor 4 and to push the second valve seat 17 to seal with the second rotor 5, and the first valve seat 16, the second valve seat 17 and the valve seat hole 11 are all sealed and connected via sealing rings.

[0062] The first valve seat 16 and the second valve seat 17 of the embodiment of the present application are both thick-walled tube structures with the same structure. The cylindrical outer wall surfaces of the first valve seat 16 and the second valve seat 17 are both provided with an annular groove for installing a sealing ring. The annular groove is used to install an "O"-shaped sealing ring, so that a seal is formed between the first valve seat 16 and the second valve seat 17 and the valve seat hole 11. The end surfaces of the first valve seat 16 and the second valve seat 17 are both hardened, and after hardening, they are ground and polished into a mirror surface. The first valve seat 16 and the sealing surface of the first rotor 4 are matched to form a face-to-face hard seal, and the second valve seat 17 and the sealing surface of the second rotor 5 are matched to form a face-to-face hard seal.

[0063] The first valve seat 16 and the second valve seat 17 can also be made of hard alloy material, and the end faces of the first valve seat 16 and the second valve seat 17 are directly ground and polished to form a sealing surface; or the end faces of the first valve seat 16 and the second valve seat 17 are designed to have installation grooves for installing seals on the end faces that are in contact with the first rotor 4 and the second rotor 5, and wear-resistant elastic sealing materials are installed in the installation grooves, and the elastic sealing materials and the sealing surfaces of the first rotor 4 and the second rotor 5 form a surface-to-surface soft seal.

[0064] The valve seat spring 18 in the embodiment of the present application can be a butterfly spring, or a wave spring or a cylindrical spring. The valve seat spring 18 is used to provide a sealing pre-tightening force to the first valve seat 16 and the second valve seat 17, so as to keep the first valve seat 16 and the second valve seat 17 in reliable contact with the first rotor 4 and the second rotor 5 after wear. The first rotor 4 and the second rotor 5 can form a highly consistent gas channel with the valve seat hole 11 of the stator 1 through rotation.

[0065] The contact surfaces of the first rotor 4 and the second rotor 5 with the first valve seat 16 and the second valve seat 17 are hardened. After the contact surfaces of the first rotor 4 and the second rotor 5 are hardened, they are processed into airtight mirror surfaces through surface grinding, lapping, polishing and other processing methods. The first rotor 4 cooperates with the first valve seat 16 to form a surface-to-surface hard seal, and the second rotor 5 cooperates with the second valve seat 17 to form a surface-to-surface hard seal.

[0066] In some alternative embodiments: See Figures 3 to 8 , Figures 9 to 17 As shown, an embodiment of the present application provides a hydrogen purification integrated control valve, which also includes a valve stem 6 that drives the first rotor 4 and the second rotor 5 to rotate synchronously, the valve stem 6 penetrates the first end cover 2 and the stator 1 and is coaxially rotatably connected to the first end cover 2 and the stator 1 through a seal, and the valve stem 6 penetrates the first rotor 4 and is coaxially fixedly connected to the first rotor 4 and the second rotor 5.

[0067] The first end cover 2 is provided with a first end cover center hole for the valve stem 6 to penetrate, and the valve stem 6 can rotate freely in the first end cover center hole of the first end cover 2. The stator 1 is provided with a stator center hole 14 for the valve stem 6 to penetrate, and the valve stem 6 can rotate freely in the stator center hole 14 of the stator 1. A radial bearing 13 rotatably connected to the valve stem 6 is provided in the stator center hole 14, and the radial bearing 13 provides radial positioning for the valve stem 6 to rotate in the stator center hole 14, so that the first rotor 4 in the upper chamber 22 and the second rotor 5 in the lower chamber 32 have only rotational freedom.

[0068] The first rotor 4 is provided with a first rotor center hole 42 for penetrating the valve stem 6, and a keyway matching the valve stem 6 is provided in the first rotor center hole 42. The valve stem 6 and the first rotor 4 are connected by a flat key 62. Of course, the valve stem 6 and the first rotor 4 can also be connected by a spline to transmit the torque of the valve stem 6. The bottom of the valve stem 6 is fixedly connected to the second rotor 5 by a flange 61, and the upper end surface of the second rotor 5 is provided with a flange mounting hole 53 matching the flange 61, and a threaded hole connected to the flange 61 is provided in the flange mounting hole 53, and the flange 61 is threadedly connected to the threaded hole in the flange mounting hole 53 by bolts.

[0069] A first thrust bearing installation groove 43 for installing the first thrust bearing 23 is provided at one end of the first rotor 4 close to the first end cover 2. The first rotor 4 is rotatably connected to the first end cover 2 through the first thrust bearing 23. The first thrust bearing 23 is used to limit the axial freedom of the first rotor 4. A second thrust bearing installation groove 52 for installing the second thrust bearing 33 is provided at one end of the second rotor 5 close to the second end cover 3. The second rotor 5 is rotatably connected to the second end cover 3 through the second thrust bearing 33. The second thrust bearing 33 is used to limit the axial freedom of the second rotor 5.

[0070] In some alternative embodiments: See Figure 3 and Figure 4 As shown, the embodiment of the present application provides a hydrogen purification integrated control valve, the sealing member of which includes a packing 63 filled between the first end cover 2 and the valve stem 6, between the stator 1 and the valve stem 6, and a packing pressing ring 64, a butterfly spring 65 and a packing gland 66 for pressing the packing 63. The sealing member between the first end cover 2 and the valve stem 6 has the same structure as the sealing member between the stator 1 and the valve stem 6. The sealing member between the first end cover 2 and the valve stem 6 is used to prevent gas leakage in the upper chamber 22, and the sealing member between the stator 1 and the valve stem 6 is used to prevent gas leakage in the lower chamber 32.

[0071] The embodiment of the present application is described by taking the seal installed between the first end cover 2 and the valve stem 6 as an example. An annular gap for accommodating the packing 63 is provided between the center hole of the first end cover of the first end cover 2 and the valve stem 6. The packing is filled in the annular gap. A packing pressing ring 64 for pressing the packing 63 is provided at the top of the packing 63. A butterfly spring 65 for elastically supporting the packing pressing ring 64 is provided at the top of the butterfly spring 65. A packing gland 66 for pressing the butterfly spring 65 is provided at the top of the butterfly spring 65. The packing gland 66 is fixedly connected to the top of the first end cover 2 by screws 67. When the packing 63 is worn, the pre-tightening force of the packing 63 is automatically compensated by the elastic force of the butterfly spring 65, so as to ensure that the sealing performance of the packing 63 is effective for a long time.

[0072] In some alternative embodiments: See Figure 1 , Figure 7and Figure 8 As shown, the embodiment of the present application provides a hydrogen purification integrated control valve, wherein the top of the stator 1 of the hydrogen purification integrated control valve is provided with a first cylinder 7 sealedly connected to the first end cover 2, and the two ends of the first cylinder 7 are sealedly connected to the stator 1 and the first end cover 2 respectively through sealing rings. The bottom of the stator 1 is provided with a second cylinder 8 sealedly connected to the second end cover 3, and the two ends of the second cylinder 8 are sealedly connected to the stator 1 and the second end cover 3 respectively through sealing rings. The first cylinder 7 and the second cylinder 8 are both circular cylinder structures with the same structure.

[0073] The upper and lower end surfaces of the stator 1 are provided with a plurality of threaded holes 15 arranged in a circumference, the first end cover 2 and the second end cover 3 are provided with a plurality of through holes matched with the threaded holes 15, and the first end cover 2 and the second end cover 3 are connected to the stator 1 by bolts 9. The first end cover 2 and the stator 1 are connected by bolts 9 to clamp and fix the first cylinder 7 between the first end cover 2 and the stator 1; the second end cover 3 and the stator 1 are connected by bolts 9 to clamp and fix the second cylinder 8 between the second end cover 3 and the stator 1.

[0074] How it works

[0075] The embodiment of the present application provides a hydrogen purification integrated control valve. Since the hydrogen purification integrated control valve of the present application is provided with a stator 1, the stator 1 is provided with a plurality of valve seat holes 11 penetrating the upper and lower end surfaces thereof and arranged in a circumference, and a stator vent hole 12 communicating with each valve seat hole 11 is also provided on the side wall of the stator 1; an end cover, the end cover includes a first end cover 2 located above the stator 1 and forming an upper chamber 22 with the stator 1, and a second end cover 3 located below the stator 1 and forming a lower chamber 32 with the stator 1, the first end cover 2 is provided with a first vent hole 21, and the second end cover 3 is provided with a second vent hole 31; a rotor, the rotor includes a first rotor 4 located in the upper chamber 22 and connecting or disconnecting any one or more valve seat holes 11 with the first vent hole 21, and a second rotor 5 located in the lower chamber 32 and connecting or disconnecting any one or more valve seat holes 11 with the second vent hole 31.

[0076] Therefore, the hydrogen purification integrated control valve of the present application is provided with a rotatable first rotor 4 and a second rotor 5 at the upper and lower ends of the stator 1, respectively. When the first rotor 4 rotates, any one or more valve seat holes 11 are connected or disconnected with the first vent hole 21, and when the second rotor 5 rotates, any one or more valve seat holes 11 are connected or disconnected with the second vent hole 31, so as to realize the connection or disconnection of the first vent hole 21 and the second vent hole 31 with the valve seat hole 11, respectively, so as to achieve the integration of multiple single control valves into an integrated control valve of the present application to control the switching of multiple pore channels. The present application not only reduces the manufacturing cost of the equipment, but also has a compact structure and greatly reduces the footprint, and can realize the equipment as a skid, greatly reducing the difficulty of on-site installation.

[0077] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0078] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0079] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. Hydrogen purification integrated control valve, characterized in that: include: A stator (1), wherein the stator (1) is provided with a plurality of valve seat holes (11) penetrating the upper and lower end surfaces thereof and arranged in a circumferential manner, and a stator vent hole (12) communicating with each valve seat hole (11) is also provided on a side wall of the stator (1); An end cover, the end cover comprising a first end cover (2) located above the stator (1) and forming an upper chamber (22) with the stator (1), and a second end cover (3) located below the stator (1) and forming a lower chamber (32) with the stator (1), the first end cover (2) being provided with a first vent hole (21), and the second end cover (3) being provided with a second vent hole (31); A rotor, the rotor comprising a first rotor (4) located in an upper chamber (22) and connecting or disconnecting any one or more valve seat holes (11) with a first vent hole (21), and a second rotor (5) located in a lower chamber (32) and connecting or disconnecting any one or more valve seat holes (11) with a second vent hole (31); A first valve seat (16) slidably connected to the first rotor (4) is provided at one end of the valve seat hole (11) close to the first rotor (4), and a second valve seat (17) slidably connected to the second rotor (5) is provided at one end of the valve seat hole (11) close to the second rotor (5), and both the first valve seat (16) and the second valve seat (17) are tubular structures.

2. The hydrogen purification integrated control valve according to claim 1, characterized in that: The first rotor (4) is provided with a plurality of first rotor vent holes (41) which penetrate through its upper and lower end surfaces and are connected or disconnected with the plurality of valve seat holes (11); the second rotor (5) is provided with a plurality of second rotor vent holes (51) which penetrate through its upper and lower end surfaces and are connected or disconnected with the plurality of valve seat holes (11).

3. The hydrogen purification integrated control valve according to claim 2, characterized in that: A plurality of pressure-equalizing blind holes (44) are provided on one end of the first rotor (4) close to the stator (1), and at least two of the plurality of pressure-equalizing blind holes (44) are interconnected.

4. The hydrogen purification integrated control valve according to claim 1, characterized in that: A valve seat spring (18) is provided in the valve seat hole (11) for pushing the first valve seat (16) to seal against the first rotor (4) and for pushing the second valve seat (17) to seal against the second rotor (5). The first valve seat (16), the second valve seat (17) and the valve seat hole (11) are all sealed and connected via a sealing ring.

5. The hydrogen purification integrated control valve according to claim 1, characterized in that: It also includes a valve stem (6) that drives the first rotor (4) and the second rotor (5) to rotate synchronously, the valve stem (6) penetrates the first end cover (2) and the stator (1) and is coaxially rotatably connected to the first end cover (2) and the stator (1) through a sealing member, and the valve stem (6) penetrates the first rotor (4) and is coaxially fixedly connected to the first rotor (4) and the second rotor (5).

6. The hydrogen purification integrated control valve according to claim 5, characterized in that: The valve stem (6) is connected to the first rotor (4) via a spline or a flat key (62); the bottom of the valve stem (6) is fixedly connected to the second rotor (5) via a flange (61); the stator (1) is connected to the valve stem (6) via a radial bearing (13); the first rotor (4) is connected to the first end cover (2) via a first thrust bearing (23); and the second rotor (5) is connected to the second end cover (3) via a second thrust bearing (33).

7. The hydrogen purification integrated control valve according to claim 5, characterized in that: The sealing member comprises a packing (63) filled between the first end cover (2) and the valve stem (6), between the stator (1) and the valve stem (6), and a packing pressing ring (64), a butterfly spring (65) and a packing pressing cover (66) for pressing the packing (63).

8. The hydrogen purification integrated control valve according to claim 1, characterized in that: A first cylinder (7) is provided at the top of the stator (1) and is sealed to the first end cover (2); two ends of the first cylinder (7) are sealed to the stator (1) and the first end cover (2) via sealing rings, respectively; a second cylinder (8) is provided at the bottom of the stator (1) and is sealed to the second end cover (3); two ends of the second cylinder (8) are sealed to the stator (1) and the second end cover (3) via sealing rings, respectively.

9. The hydrogen purification integrated control valve according to claim 1 or 8, characterized in that: The upper and lower end surfaces of the stator (1) are both provided with a plurality of threaded holes (15) arranged in a circumferential manner, the first end cover (2) and the second end cover (3) are both provided with a plurality of through holes matching the threaded holes (15), and the first end cover (2) and the second end cover (3) are both connected to the stator (1) by bolts (9).

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