DIGITAL REGULATED GAS DISPENSING APPARATUS WITH A MEMS MASS FLOW METER
20180347759 · 2018-12-06
Assignee
Inventors
Cpc classification
F17C2205/0329
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2223/0123
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A61M16/1005
HUMAN NECESSITIES
A61M2205/3592
HUMAN NECESSITIES
F17C2250/0426
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A61M2205/505
HUMAN NECESSITIES
G01F1/684
PHYSICS
F17C2201/0109
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C13/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A61M2205/3569
HUMAN NECESSITIES
F17C13/028
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2250/0443
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2223/035
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C13/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2270/025
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2250/0495
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2205/0338
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2265/06
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2270/05
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A61M2205/0244
HUMAN NECESSITIES
F17C2265/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2250/032
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A61M2205/3553
HUMAN NECESSITIES
F17C2250/0491
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2221/011
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F17C2250/034
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F17C13/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G01F1/684
PHYSICS
Abstract
The design and structure of a regulated digital dispense apparatus is exhibited in this disclosure. The MEMS mass flow meter embedded with a Bluetooth communication device and powered by a battery pack is designed to replace the mechanical low pressure gauge in a conventional gas dispense regulator such that the dispensed gas flowrate as well as totalized dispensed gas volume in each session or in consequent sessions can be continuously and precisely registered. The measured data are further relayed to local users via the local display or physical data port as well as via a paired smart device running a customized APP that can further relay the data to a designated cloud for cloud data processing, and the data can be streamed reversely. This disclosure shall assist and realize the ultimate optimized management for the users, distributors and/or gas manufacturers in the gas dispensing industry.
Claims
1. A regulated digital gas dispense apparatus having the MEMS mass flow meter to replace a conventional low pressure gas gauge and to continuously and precisely register a gas dispensing flow rate as well as a totalized dispensed volume comprising: An independent gas mass flow sensing unit having a centralized main inlet flow channel that re-partitions the gas flow via a plurality of side flow channels that further releases the gas to the outlets A MEMS mass flow sensing chip operating with the calorimetric thermal mass flow sensing principle, which is placed at one or a plurality of side flow channels; An electronics control unit that acquires the instant gas dispensing mass flowrates and totalizes the dispensed gas volume; A local display that relays the instant gas dispense flowrate as well as the totalized dispensed gas volume; A low energy Bluetooth device that relays the measured gas dispensing data to a smart device; A physical data port via which the gas dispensing data including the historical data can be downloaded; A physical button that allows the user to program the data format that is desired to be received including to allow the user to set password for data safety; An exchangeable base that the meter is connected with, which shall have customized mechanical formality to be compatible for the existing mechanical gas regulating apparatus such that the mechanical low pressure gauge can be replaced seamlessly; A complete enclosure connects and houses the components for being constituent into a complete and stand-alone mass flow meter system. Such an enclosure shall also meet the safety requirements for medical and industrial applications. wherein the collected data will be able to relay to the user via a smart device further relayed to the third party of interest via data streaming to the cloud and cloud data processing that enable the ultimately optimized management for gas dispensing.
2. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein the said independent gas mass flow sensing unit shall be able to be independently calibrated; the said centralized flow channel shall be connected to the outlet of a gas supply line or to the outlet of a manual gas pressure regulating valve; the shape of the said side flow channels shall be made into a venturi structure for flow stability; the side flow channels that re-partition the gas dispensing shall be in plural numbers, and preferred to be at least eight of those channels symmetrically distributed around the centralized inlet and in the circular formality; the fail scale of the as dispensing mass flow rate can also be adjusted via the numbers of side channels that re-partition the flow from the centralized inlet; the diameters of each of the side channels shall be identical and the sizes can be 1 mm to 10 mm but preferred in 3 mm for most of the applications of interest; the said gas mass flow sensing unit shall be made preferably with plastics or other specific materials in compatible with the corresponding gas wetted materials requirements.
3. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein the said MEM S mass flow sensor chips being placed at the throat of the venturi structure of the side flow channels for the measurement of the mass flowrate of the dispensing gas shall be in plural numbers from 1 to 4 in consideration of reliability, but preferred to be 1 or 2 for the considerations of performance and cost, the said NI EVES mass flow sensor chips shall be preferred to be made for calorimetric thermal mass flow sensing measurement.
4. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein the said control electronics shall have the capability to process the acquired analog mass flow rate into digital format and it shall further totalize the volume of the dispensed gas in each session and in consequent sessions; it shall also process the data in such a way as instructed by the users via the set parameters such as to provide all alerts in the gas dispensing such as over or under the set limit of dispensing mass flow rate or totalized volume; the said control electronics shall further drive the communications with a paired smart device or allow the data to be downloaded or uploaded; the said electronics shall further have a plurality of numbers of memory chips or devices that allows the data can be simultaneously stored for data safety; it shall also have other necessary functions such as allow the user to set password for protection.
5. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein the said local display shall be able to provide the instant gas dispensing rate as well as the volume of each gas dispense and the totalized volume of gas being dispensed from the reset of the digital gas meter; for the explicit, the local display shall also display graphic bars that gradually increase with the increase of the mass flowrate of the gas being dispensed.
6. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local use as well as further relay to cloud for cloud data processing of claim 1 wherein the said wireless Bluetooth capability shall have the low energy Bluetooth communication chip as well as the antenna being embedded inside the said MEMS mass flow meter; the Bluetooth shall relay the gas dispensing data as well as any user programmed parameters to a smart device that be paired; the smart device shall run an APP that shall be able to remotely program the said MEM mass flow meter as well such that any desired gas dispensing parameters by the user can also be enabled or set via the smart device with the APP which can further relay the gas dispensing data to a designated cloud for cloud data processing or download an instruction from the designated cloud for desired gas dispensing parameter program to the said MEMS mass flow meter.
7. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein the said physical data port shall be used to manually download gas dispensing data as well as program any desired gas dispensing parameter via a physical digital data processing, devices such as a laptop computer; the connected digital data process devices shall also be able to enable the data transmission to a designated cloud for further cloud data process. The said local physical port is preferably be a micro- or mini-USB or USB-C port for the easy accessibility.
8. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim f wherein the said physical button on the said MEMS mass flow meter shall allow the user to manually set the desired gas dispensing data such as alert dispense volume, alert replacement limit, alert gas dispensing flowrate, either high or low, and alert gas dispensing composition, to name a few. The said physical button shall also be used for password setup for the data safety and protection.
9. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein the said exchangeable base unit shall have the gas dispense outlet that connects to the side channels of the said mass flow sensing unit; the mechanical connection including the thread of the said base unit shall be further customizable such that it can be in compatible with those connectors in the conventional mechanical gas dispensing regulating apparatus, in particular in compatible with the connectors for the mechanical low pressure gauge used for gas dispensing line monitor; the said base unit shall be made preferably with metal or other specific materials in compatible with the corresponding gas wetted materials requirements.
10. The regulated digital dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein the said enclosure or house of the MEMS mass flog meters shall be made preferably with sturdy engineering plastics or other specific materials for the requirements of the working environments; it shall also meet the safety requirements of the said apparatus.
11. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein the said MEMS mass flow meter shall work at a low power mode and shall be able to be powered by battery pack that can be readily purchased on market, which shall be further in compliance with the industrial standard safety regulations.
12. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein for the applications of high pressurized gas dispensing such as those from a pressurized gas bottle or cylinder or container, the said MEMS mass flow meter shall replace the mechanical low pressure gauge in a conventional gas dispensing regulating apparatus forming a stand-alone regulated digital gas dispense apparatus having the capability to relay the data to the local user as well as to the third party of interest via the designated cloud and cloud data processing; an additional manual valve can be added to the base of the said MEMS mass flow meter such that the gas dispensing flow rate shall also be able to be adjusted and controlled manually.
13. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 1 wherein for the applications of ambient or low pressure gas dispensing from a gas supply or fixed gas generating source, the said MEMS mass flow meter shall be connected to a manual for the adjustment of the gas dispensing flow rate forming a stand-alone regulated digital gas dispense apparatus having the capability to relay the data to the local user as well as to the third party of interest via the designated cloud and cloud data processing.
14. The regulated digital gas dispense apparatus having the capability to relay the instant gas dispensing data to local user as well as further relay to cloud for cloud data processing of claim 12 or 13 wherein the said regulated digital gas dispense apparatus shall also bee able to connect to a humidifier via the customization of the base of the said digital mass flow meter such that it shall be used for medical oxygen dispensing or delivery.
Description
BRIEF DESCRIPTIONS OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0024] For either medical or industrial gas dispensing from a bottle or cylinder or a container or a fixed gas supply, a gas regulating apparatus is a necessary and critical device for a safety dispensing process. Such an apparatus is often made with a pressure regulating valve and mechanical pressure gauges to monitor the pressure inside the gas container and at the outlet of the dispensing line (e.g. Boyer, R. A., Gas pressure regulator having energy absorbing features, U.S. Pat. No. 8,869,822, Oct. 28, 2014). As the gas dispensing pattern is solely dependent on the applications and demands, the speed and volume of dispensed gas would have vast varieties, leading to difficulties for user to predicate the schedule of a timely order of a replacement, and also in particular for manufacturers to manage the manufacture and inventory. These are very much undesired for both users and manufacturers for a timely access to the status of the gas containers in the field where multiple applications would apply. Therefore, the said disclosure shall address these and all the management demands for the dispensing demands from a gas bottle or a cylinder or a container.
[0025] For the preferred embodiment, the present disclosure of a regulated digital gas dispense apparatus for the gas dispensing management shall have a MEMS mass flow meter to replace one of the conventional mechanical pressure gauge such that the gas dispensing can be continuously and precisely metered and the data shall be relayed to both user via smart devices and manufacture via cloud data process. The explosive view of the said MEMS mass flow meter is shown in
[0026] Bluetooth wireless communication chip as well as the antenna are also part of the central electronic control unit 105. In addition, at least two physical memory chips such as e-flash are also installed on this unit with direct access by the MCU for data storage and data safety. A physical data port in the form of a micro-USB or mini-USB or USB-C is also included for access to the data on board in case the wireless data access is being disabled or not readily accessible. 106 through 110 are components of the gas dispensing flowrate sensing unit 116. 106 is the upper cover of the unit and 107 is the flow channel sealing enclosure under which is the flow conditioning component 108. 109 are multiple screws that are used to fix the flow sensing unit onto the base (115) of the said MEMS mass flow meter and 110 is the gasket for additional assistance to the fixture. 111 is the MEMS sensor chip assembly that provide the flowrate measurement via the MEMS sensing chip that utilizes the calorimetric or time-of-flight thermal mass flow sensing principle as disclosed previously by the present inventors. The sensing chip is preferred to be operated with the calorimetric mass flow sensing as no additional pressure and temperature sensing shall be required to directly metering the gas mass dispensing. An integrated thermal conductivity sensor on the same MEMS sensing chip can be used to identify the gas composition such that if an undesired gas component were present in the gas dispensing line, the sensing unit shall also be able to send an alert to the users. 112, 113 and 114 are 3 O-rings or gaskets consequently to be placed onto the base under the gas dispensing flow rate sensing unit 116 to ensure a tight leakage free sealing as some industrial gases may be hazardous to the environment. 117 are multiple screws that are used to attach and fix the front cover to the gas dispensing flow rate sensing unit (116). 118 is the back cover of the said MEMS mass flow meter, which also contains the battery pack compartment. 119 is a meter body upper fixture that also contains the logo or trade mark of the said product. 120 is the battery pack chamber cover and 121 are multiple screws that are used to additionally tighten the meter body front and back cover.
[0027]
[0028] For the preferred embodiments, the gas dispensing flow rate sensing unit 116 shall be an independent unit and shall be exchangeable with respect to the complete meter. The said unit shall be able to be adjusted as for the full scale flow rate, physical interface dimensions and wetted materials per the actual application requirements. In the preferred embodiment,
[0029] The typical current regulated gas dispense apparatus is exhibited in
[0030] To further elaborate the advantages of the above preferred embodiments,
[0031] For the preferred embodiment,
[0032] For the preferred embodiment,
[0033] For the preferred embodiment, the interactions among the disclosed regulated digital gas dispense apparatus, the user with the smart devices and the cloud with data process are exhibit in
[0034] For the additional preferred embodiment, the said regulated digital gas dispensing apparatus for those in the art shall become readily and apparently could be further incorporated with additional features such as an electrical driving valve for remote operation. It shall also be readily and apparently that the said regulated digital gas dispense apparatus shall also be equipped with other wireless communication tools such as a WIFI or even a cell data communication to interact with a local router or station for a large scale of clusters of the said gas dispensing management with the disclosed regulated digital gas dispense apparatus.