Leak-proof fluid dispensing system with pressure sensor and adjustable dispensing regulator, dispensing control valve structure with pressure sensor, and dispensing control valve structure

A dispensing control valve structure with a pressure sensor, adapted to be connected to a gas cylinder having a containing space and a bottle opening, the dispensing control valve structure comprising:

• a dispensing body having an internal channel that communicates with an inlet port, an outlet port, a bottle port, and a joint portion, wherein the joint portion is detachably sealed and combined with the bottle opening, the bottle port is detachably communicated with the containing space, and the dispensing body is formed outside of the bottle opening, wherein the dispensing body includes therein:
• an inlet valve connected to the inlet port and the internal channel;
• an outlet valve connected to the outlet port and the internal channel;
• a pressure dispensing regulator connected to the outlet port and the bottle port through the internal channel and preset with an opening pressure value;
• and
• a filter connected to the pressure dispensing regulator and the bottle port through the internal channel;
• and
• the pressure sensor disposed inside of the dispensing body and having a detection end, the detection end is connected to the internal channel between the filter and the bottle port;
• wherein the inlet valve, the outlet valve, the pressure dispensing regulator, and the filter are disposed inside of the dispensing body;
• wherein the opening pressure value is assigned as a first opening pressure value which is set lower than an atmospheric pressure, when an actual pressure at an outlet end of the pressure dispensing regulator is lower than or equal to the first opening pressure value, the pressure dispensing regulator is opened;
• wherein the bottle port is further connected to a restrictive flow orifice, the restrictive flow orifice allowing fluid in the gas cylinder to be released slowly;
• and
• wherein even if the outlet valve is opened, but the actual pressure outside the outlet end of the pressure dispensing regulator is equal to the atmospheric pressure, the pressure dispensing regulator is still closed and fluid in the gas cylinder will not flow out to prevent accidental leakage.

A dispensing control valve structure, adapted to be connected to a gas cylinder having a containing space and a bottle opening, the dispensing control valve structure comprising:

• a dispensing body having an internal channel that communicates with an inlet port, an outlet port, a bottle port, and a joint portion, wherein the joint portion is detachably sealed and combined with the bottle opening, the bottle port is detachably communicated with the containing space, and the dispensing body is formed outside of the bottle opening, wherein the dispensing body includes therein:
• an inlet valve connected to the inlet port and the internal channel;
• an outlet valve connected to the outlet port and the internal channel;
• a pressure dispensing regulator connected to the outlet port and the bottle port through the internal channel and preset with an opening pressure value;
• and
• a filter connected to the pressure dispensing regulator and the bottle port through the internal channel;
• wherein the inlet valve, the outlet valve, the pressure dispensing regulator, and the filter are disposed inside of the dispensing body;
• wherein the opening pressure value is assigned as a first opening pressure value which is set lower than an atmospheric pressure, when an actual pressure at an outlet end of the pressure dispensing regulator is lower than or equal to the first opening pressure value, the pressure dispensing regulator is opened;
• wherein the bottle port is further connected to a restrictive flow orifice, the restrictive flow orifice allowing fluid in the gas cylinder to be released slowly;
• and
• wherein even if the outlet valve is opened, but the actual pressure outside the outlet end of the pressure dispensing regulator is equal to the atmospheric pressure, the pressure dispensing regulator is still closed and fluid in the gas cylinder will not flow out to prevent accidental leakage.