阅读说明：本技术 两条或多条管线并联运行的减压设备 (Pressure reduction device with two or more lines running in parallel ) 是由 C·英宝锡丽 于 2019-07-29 设计创作，主要内容包括：一种包括两个或更多个平行布置的阀组件(10；10a、10b、10c)的减压设备(1),阀组件包括：用于从供应压力(pa)到递送压力(pm)的燃料气体的减压器(20；20a、20b、20c)；先导阀(30；30a、30b、30c),当递送压力(pm)达到先导阀(30；30a、30b、30c)的标定值(pt、pt’)时,先导阀用于将控制压力(pc)传输至减压器(20；20a、20b、20c)；导出管道(24),这些导出管道将递送压力(pm)传输至减压器(20；20a、20b、20c)、先导阀(30；30a、30b、30c)和减压器装置(35)；将控制压力(pc)从先导阀(30；30a、30b、30c)传输至减压器(20；20a、20b、20c)的指令管线(32)。先导阀(30a)中的一个配置有标定值(pt’),该标定值大于所有其余先导阀(30b、30c)的标定值(pt),并且每个指令管线(32)构造成与控制管线(40)连通。(A pressure reducing device (1) comprising two or more valve assemblies (10; 10a, 10b, 10c) arranged in parallel, the valve assemblies comprising: a pressure reducer (20; 20a, 20b, 20c) for fuel gas from a supply pressure (pa) to a delivery pressure (pm); a pilot valve (30; 30a, 30b, 30c) for transmitting the control pressure (pc) to the pressure reducer (20; 20a, 20b, 20c) when the delivery pressure (pm) reaches a calibrated value (pt, pt') of the pilot valve (30; 30a, 30b, 30 c); lead-out conduits (24) conveying the delivery pressure (pm) to the pressure reducer (20; 20a, 20b, 20c), the pilot valve (30; 30a, 30b, 30c) and the pressure reducer means (35); a command line (32) transmits the control pressure (pc) from the pilot valve (30; 30a, 30b, 30c) to the pressure reducer (20; 20a, 20b, 20 c). One of the pilot valves (30a) is configured with a calibration (pt') that is greater than the calibration (pt) of all remaining pilot valves (30b, 30c), and each command line (32) is configured to communicate with a control line (40).)

1. A pressure reducing device (1) for distributing fuel gas to a distribution network (2), said device (1) comprising two or more valve assemblies (10; 10a, 10b, 10c) arranged parallel to each other, each of said valve assemblies comprising a pressure reducer (20; 20a, 20b, 20c), a pilot valve (30; 30a, 30b) and a pressure reducer arrangement (35) pneumatically connected to the respective said pressure reducer (20; 20a, 20b, 20c) and the respective said pilot valve (30; 30a, 30b, 30c), wherein:

-each of said pressure reducers (20; 20a, 20b, 20c) is interposed between a supply line (4; 4a, 4b, 4c) and a delivery line (7) to reduce the pressure of the fuel gas from a supply pressure (pa) present in said supply line (4; 4a, 4b, 4c) to a delivery pressure (pm) present in said delivery line (7) when said pressure reducer (20; 20a, 20b, 20c) is opened by a control pressure (pc);

-each of said pilot valves (30; 30a, 30b, 30c) is configured to be closed by said delivery pressure (pm) when said delivery pressure (pm) reaches a calibrated value (pt, pt') of said pilot valve (30; 30a, 30b, 30c) and to transmit said control pressure (pc) to a respective said pressure reducer (20; 20a, 20b, 20c),

further comprising:

-lead-out conduits (24), each of which is configured to transmit the delivery pressure (pm) from the delivery line (7) to a respective pressure reducer (20; 20a, 20b, 20c), a respective pilot valve (30; 30a, 30b, 30c) and a respective pressure reducer device (35);

-command pipelines (32) each configured to transmit the control pressure (pc) from a respective pilot valve (30; 30a, 30b, 30c) to a respective pressure reducer (20; 20a, 20b, 20c),

characterized in that the calibration value (pt') of the pilot valve (30a) of any one of the valve assemblies (10; 10a, 10b, 10c) is larger than the calibration values (pt) of all remaining pilot valves (30b, 30c) belonging to the remaining valve assemblies, and all the control lines (32) are connected to each other via a single control line (40).

2. The pressure-reducing device (1) of claim 1, characterized in that it comprises exclusively two or more valve assemblies (10; 10a, 10b, 10 c).

3. Pressure reducing device (1) according to any of claims 1 or 2, wherein each of the valve assemblies (10; 10a, 10b, 10c) exclusively comprises only one respective pilot valve (30; 30a, 30b, 30c) and only one respective pressure reducer means (35).

4. The decompression device (1) according to any one of the preceding claims, wherein each of the command lines (32) communicates with the control line (40) via a shut-off valve (41).

5. Pressure-reducing device (1) according to any one of the preceding claims, characterized in that each of the pressure reducers (20; 20a, 20b, 20c) comprises a first chamber (21) and a second chamber (22) separated from each other by an elastic diaphragm (23), and each of the pilot valves (30; 30a, 30b, 30c) is equipped with an outlet line (31), an inlet line (33) and an inlet fitting (37), the pressure reducers (20; 20a, 20b, 20c), the pilot valves (30; 30a, 30b, 30c), the supply lines (4; 4a, 4b, 4c) and the delivery lines (7) being pneumatically connected to each other via the lead-out conduit (24) and the command line (32).

6. The pressure reduction device (1) according to claim 5, characterized in that the first chamber (21) is connected to the delivery line (7) via a lead-out duct (24) and receives a pressure signal defined by the delivery pressure (pm) present in the delivery line (7).

7. Pressure-reducing device (1) according to claim 5 or 6, characterized in that the second chamber (22) is connected to the outlet line (31) of the respective pilot valve (30; 30a, 30b, 30c) via a command line (32), the second chamber receiving a pressure signal defined by the control pressure (pc) from the command line (32).

8. A pressure reducing arrangement (1) according to any of claims 5 to 7, characterized in that the inlet line (33) of each of the pilot valves (30; 30a, 30b, 30c) communicates with the outlet line (34) of the pressure reducing device (35), which outlet line (34) is connected to the respective supply line (4) by a lead-out line (38).

9. The pressure reducing device (1) according to any one of claims 5 to 8, characterized in that the inlet fitting (37) of each of the pilot valves (30; 30a, 30b, 30c) communicates with the lead-out duct (24) and receives a pressure signal defined by the delivery pressure (pm) present in the delivery line (7).

10. A pressure reducing arrangement (1) according to any of the preceding claims, characterized in that each of the pilot valves (30; 30a, 30b, 30c) comprises an adjustable spring (36) associated with an adjusting means (39), the adjusting means (39) being adapted to adjust a calibration value (pt) of the spring (36).