TWI557376B - Safety and Leakage Control Method for Gas Pipeline - Google Patents
Safety and Leakage Control Method for Gas Pipeline Download PDFInfo
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- TWI557376B TWI557376B TW103127520A TW103127520A TWI557376B TW I557376 B TWI557376 B TW I557376B TW 103127520 A TW103127520 A TW 103127520A TW 103127520 A TW103127520 A TW 103127520A TW I557376 B TWI557376 B TW I557376B
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Description
本發明係關於一種瓦斯管路安全防漏控制方法;特別關於一種每次點燃爐火前,均能強制供應預定時間的瓦斯氣體流量流入至安全閥及其管路內部後,再強制切斷電磁閥激磁時所需的電源,經由預定時間的變化而檢測安全閥及其管路內部的瓦斯氣體壓力值是否維持不變,以作為能否再次啟動電磁閥供應瓦斯氣體的依據。 The invention relates to a safety leakage control method for a gas pipeline; in particular, a gas gas flow which can be forcibly supplied for a predetermined time before each ignition furnace fire flows into the safety valve and the inside of the pipeline, and then forcibly cuts off the electromagnetic The power supply required for the valve excitation detects whether the gas pressure value inside the safety valve and its pipeline remains unchanged through a predetermined time change, as a basis for re-starting the supply of gas gas to the solenoid valve.
按,習用之瓦斯測漏裝置,請參閱 鈞局核准發明專利證書第I285248號,其主要係於本體內一方容設有激磁裝置及磁簧開關,另一方容設有感應裝置及壓力偵測器,而其中激磁裝置與壓力偵測器並接設於控制電路板上,可回饋訊號或傳送訊號,其中,本體一方設有一入口通設到內部之閥室中,閥室內並延伸出有一通道,通道並接設出口,且通設到偵測室,而於閥室與偵測室外並各蓋設有一密閉蓋,激磁裝置係可受控制產生吸附之磁力,該設於本體之閥室內,並且係接設到控制電路板處,磁簧開關係設於激磁裝置上方與通道處,並為常態封閉通道,該可受激磁裝置之影響而控制出口之啟閉,感壓裝置係會受本體中進入通道之瓦斯影響所控制,而產生有上下變形浮動,該內側面底部設有一控制點,當感壓裝置上下變形浮動時,控制點之高底位置亦隨同變化,壓力偵測器係可偵測 感壓裝置上之控制點位置,並且接設到控制電路板處;藉由上述結構,磁簧開關係常閉封閉通道與出口,瓦斯係由入口充滿閥室,而可由通道進入出口與偵測室,激磁裝置係能由外部控制激磁產生磁力,而將磁簧開關吸動,利用吸動俾以令通道開啟,當瓦斯進入偵測室會控制感壓裝置之位置推動,利用感壓裝置之控制點位移能被壓力偵測器所感測到,當控制點靠近壓力偵測器時表示瓦斯壓力足夠,漸行漸遠時表示壓力不足有瓦斯外洩之情形發生,當瓦斯外漏時,激磁裝置係可控制磁簧開關封閉通道者。 According to the conventional gas leak detection device, please refer to the approved invention patent certificate No. I285248, which mainly includes an excitation device and a reed switch on one side of the body, and an induction device and a pressure detector on the other side. And the excitation device and the pressure detector are connected to the control circuit board to feed back the signal or transmit the signal, wherein the main body has an inlet connected to the inner valve chamber, and a passage extends in the valve chamber. The passage is connected to the outlet and is connected to the detection chamber, and a sealing cover is arranged in the valve chamber and the detection outside, and the cover is controlled to generate an adsorption magnetic force, which is disposed in the valve chamber of the body, and Connected to the control circuit board, the magnetic spring open relationship is set above the excitation device and the channel, and is a normally closed channel, which can be controlled by the excitation device to control the opening and closing of the outlet, and the pressure sensing device is received by the body The influence of the gas entering the channel is controlled, and there is a vertical deformation floating, and a control point is arranged at the bottom of the inner side. When the pressure sensing device is deformed and floated up and down, the high bottom position of the control point also changes. , The pressure detector can be detected based The position of the control point on the pressure sensing device is connected to the control circuit board; with the above structure, the magnetic spring opening relationship normally closes the channel and the outlet, and the gas system fills the valve chamber by the inlet, and the channel can enter the exit and the detection Room, the excitation device can generate magnetic force by externally controlling the excitation, and the reed switch is sucked, and the suction port is used to open the channel. When the gas enters the detection chamber, the position of the pressure sensing device is controlled, and the pressure sensing device is used. The displacement of the control point can be sensed by the pressure detector. When the control point is close to the pressure detector, the gas pressure is sufficient. When it is gradually drifting away, it means that the pressure is insufficient and there is gas leakage. When the gas leaks, the excitation occurs. The device controls the reed switch to close the channel.
上述創作案雖能達成原先所設定之創作目的,而深受業界及一般操作者所讚許,惟鑑於業界在不餘遺力的研發及技術上的不斷創新突破下,以致使申請人更加努力研究改良,而使其臻於完美實用;再加上,創作人在歷經無數次更新實驗測試以及歸納消費者之實際操作使用上的回應意見,發現尚有下列問題猶待進一步改善: 根據上述習知之「瓦斯測漏裝置」的第4-6圖及其說明書第8頁第14行至第9頁第7行『...,續由第4圖觀之,當瓦斯開啟由入口(11)進入,該會充滿閥室(12)中,該充滿之壓力到達調壓裝置(30)所能承受時,調壓裝置(30)會受瓦斯壓力而被往外推,該會調整入口(11)之大小藉以保持瓦斯之壓力,而激磁裝置(40)係可由外部控制激磁產生磁力,令瓦斯能由通道(13)同時進入出口(14)與偵測室(15)內,.......,如第5圖所示,該係利用本體(10)之出口(14)封閉,再由入口(11)處充滿瓦斯進入,磁閥開關(50)係控制開啟通道(13),令感壓裝置(60)被動作,.........,在一段時間後控制點(61)之位置如無變化,表示該調節器與後端之管路間無瓦斯洩漏之現象,.......』等語,即表示習知「瓦斯測漏裝置」於外部控制激磁裝置(40)產生磁力時, 就持續供應瓦斯流入佈滿於調節器及管路內,而沒有間斷過,尤其是,當調節器或管路中呈微洩漏或小洩漏時,若閥室(12)流入至通道(13)內的瓦斯流量大於調節器或管路中的洩漏流量,根本就不會使感壓裝置(60)上之控制點(61)的位置產生移動,而誤斷定為“無洩漏瓦斯氣體”之情事,而形成邊點燃爐火使用邊室內洩漏瓦斯氣體的狀態,以致使室內易佈滿有高濃度的一氧化碳或易引起氣爆的意外危險發生其一大困擾。 Although the above-mentioned creations can achieve the original purpose of creation, they are highly praised by the industry and the general operators. However, in view of the industry's continuous innovation and breakthrough in research and development and technology, the applicants have made more efforts to study. Improvement, and make it perfect and practical; plus, the creator has responded with numerous updates to the experimental test and the actual use of the consumer, and found that the following problems still need to be further improved: According to the above-mentioned "Gas Leak Detection Device", Figures 4-6 and its description, page 8, line 14 to page 9, line 7 "..., continued from Figure 4, when the gas is opened by the entrance (11) entering, the meeting is filled in the valve chamber (12), and when the full pressure reaches the pressure regulating device (30), the pressure regulating device (30) is pushed outward by the gas pressure, which will adjust the inlet. (11) is sized to maintain the pressure of gas, and the excitation device (40) can be externally controlled to generate magnetic force by excitation, so that gas can be simultaneously entered into the outlet (14) and the detection chamber (15) by the passage (13). ....., as shown in Fig. 5, the system is closed by the outlet (14) of the body (10), and then filled with gas at the inlet (11), and the magnetic valve switch (50) controls the opening channel (13). ), so that the pressure sensing device (60) is actuated, ..., after a period of time, the position of the control point (61) is unchanged, indicating that there is no gas between the regulator and the back end of the pipeline. The phenomenon of leakage, etc., means that the conventional "gas leakage detecting device" generates magnetic force when the externally controlled excitation device (40) generates magnetic force. Continuous supply of gas into the regulator and piping without interruption, especially if there is a slight leak or small leakage in the regulator or pipeline, if the valve chamber (12) flows into the passage (13) The gas flow rate inside is larger than the leakage flow rate in the regulator or pipeline, and the position of the control point (61) on the pressure sensing device (60) is not moved at all, and the accidental determination is "no leakage gas gas". However, the state in which the gas is ignited while using the side of the furnace is leaked, so that the indoor is easily covered with a high concentration of carbon monoxide or an accidental risk of causing a gas explosion.
有鑑於此,本發明遂針對上述習知技術之缺失,提出一種瓦斯管路安全防漏控制方法,以有效克服上述該等問題,以期能嘉惠於所有的消費者及製造者。 In view of the above, the present invention proposes a gas pipeline safety leak prevention control method in response to the above-mentioned shortcomings of the prior art, so as to effectively overcome the above problems, in order to benefit all consumers and manufacturers.
本發明之瓦斯管路安全防漏控制方法,藉由每次點燃爐火前,均能先強制電磁閥激磁預定時間來供應瓦斯氣體流量流入佈滿於安全閥及其管路內部後,再強制切斷電磁閥激磁時所需的電源,並經由一定時間的檢測判別安全閥及其管路內部的壓力值是否維持一致,而作為電磁閥是否能再次被開啟供應瓦斯流量的依據,如此,不論是點燃爐火前的安全閥或其管路內部有大洩漏或小洩漏時,均能完全切斷安全閥的瓦斯供氣來源,以確實達到杜絕邊使用邊洩漏的一氧化碳中毒現象及防止瓦斯氣爆的意外危險發生為其進步性之功效。 The gas leakage prevention control method of the gas pipeline of the invention can force the electromagnetic valve to be excited for a predetermined time to supply the gas gas flow into the inner part of the safety valve and the pipeline after each ignition of the fire, and then forcibly Cut off the power supply required for the solenoid valve to be energized, and determine whether the pressure value inside the safety valve and its pipeline is consistent through a certain period of time, and as a basis for whether the solenoid valve can be opened again to supply the gas flow, so When the safety valve before the ignition is ignited or when there is a large leak or a small leak inside the pipeline, the gas supply source of the safety valve can be completely cut off, so as to eliminate the carbon monoxide poisoning phenomenon and prevent the gas leakage during the use side leakage. The unexpected danger of explosion occurs as a progressive effect.
本發明之瓦斯管路安全防漏控制方法,其至少包括有:(A)強制供應預定時間的瓦斯氣體流量:在點燃爐火前,必須藉由控制元件先強制啟動電磁閥產生預定時間的激磁動作而使瓦斯氣體經由進氣通道處佈滿於安全閥及其管路內部;(B)強制切斷供應瓦斯氣體:強制切 斷電磁閥激磁時所需的供應電源,而使得電磁閥不會有激磁現象,且使電磁閥之活塞板件能阻設於入氣道的入口處;(C)檢測判斷是否異常洩漏瓦斯氣體:瓦斯氣體佈滿於安全閥及其管路內部有一段時間後,利用安全閥內部的壓力偵測器所偵測之訊息傳輸至電路板處,作為判斷是否有異常洩漏瓦斯氣體的依據;(D)是否再次供應瓦斯氣體:當安全閥內的壓力偵測器所偵側之壓力數值小於預定數值或偵測數值呈逐漸變小(即有洩漏的現象)時,將確保電磁閥不會再次產生激磁動作,以確保瓦斯氣體無法再次流入至安全閥及其管路內部;當安全閥內的壓力偵測器所偵側之壓力數值達到預定數值以上暨維持不變(即無洩漏的現象)時,電磁閥可再次產生激磁動作,以確保瓦斯氣體能再次流入至安全閥及其管路內部者。 The gas pipeline safety leakage prevention control method of the present invention comprises at least: (A) forcibly supplying a gas flow rate for a predetermined time: before igniting the fire, the electromagnetic valve must be forcibly activated by the control element to generate a predetermined time of excitation. Acting to make gas gas fill the inside of the safety valve and its pipeline through the intake passage; (B) Forced cut off the supply of gas: forced cutting Disconnect the power supply required for the solenoid valve to activate, so that the solenoid valve will not be excited, and the piston plate of the solenoid valve can be blocked at the inlet of the air inlet; (C) Check whether the gas is abnormally leaked: After the gas is filled in the safety valve and its pipeline for a period of time, the information detected by the pressure detector inside the safety valve is transmitted to the circuit board as a basis for judging whether there is abnormal gas leakage; (D) Whether to supply gas gas again: when the pressure value detected by the pressure detector in the safety valve is less than a predetermined value or the detected value is gradually smaller (ie, there is a leakage phenomenon), it will ensure that the solenoid valve will not be generated again. Excitation action to ensure that the gas cannot flow into the safety valve and its piping again; when the pressure value on the side of the pressure detector in the safety valve reaches a predetermined value or more and remains unchanged (ie, there is no leakage) The solenoid valve can again generate an excitation action to ensure that the gas can flow again into the safety valve and its piping.
1‧‧‧安全閥 1‧‧‧Safety valve
10‧‧‧進氣通道 10‧‧‧Intake passage
11‧‧‧入氣道 11‧‧‧Into the airway
12‧‧‧出氣道 12‧‧‧Airway
13‧‧‧氣室 13‧‧‧ air chamber
2‧‧‧電磁閥 2‧‧‧ solenoid valve
20‧‧‧軸心桿 20‧‧‧Axis rod
21‧‧‧活塞板件 21‧‧‧ piston plate
25‧‧‧彈簧 25‧‧‧ Spring
3‧‧‧管路 3‧‧‧pipe
4‧‧‧壓力偵測器 4‧‧‧ Pressure detector
41‧‧‧皮膜件 41‧‧‧film parts
45‧‧‧磁吸件 45‧‧‧Magnetic parts
A‧‧‧步驟 A‧‧‧Steps
B‧‧‧步驟 B‧‧‧Steps
C‧‧‧步驟 C‧‧‧Steps
D‧‧‧步驟 D‧‧‧Steps
第1圖為本發明之安全防漏控制的流程圖。 Figure 1 is a flow chart of the safety leak prevention control of the present invention.
第2圖為本發明在檢測判別使用時的組合剖面圖。 Fig. 2 is a sectional view showing the combination of the present invention in the detection and discrimination.
請參閱第1圖至第2圖所示,本發明係提供一種瓦斯管路安全防漏控制方法,其方法如下:(A)強制供應預定時間的瓦斯氣體流量:在點燃爐火前,必須先以控制元件(圖中未示)強制啟動電磁閥2產生預定時間的激磁動作,而使得已位於電磁閥2之軸心桿20上的活塞板件21能遠離安全閥1之進氣通道10處(即成開放狀態),並使瓦斯氣體得以經由安全閥1的進氣通道10流入佈滿於安全閥1之入氣道11、氣室13、出氣道1 2及其管路3內部,同時,已位於氣室13內的瓦斯氣體能將皮膜件41往上(外)推動,且使已位於皮膜件41上的磁吸件45能往壓力偵測器4的方向靠近,以供壓力偵測器4得以測出其壓力數值;而上述電磁閥2之活塞板件21與安全閥1之入氣道11的入口間係呈常態封閉的型態者;(B)強制切斷供應瓦斯氣體:電磁閥2在激磁達預定時間之久時,就強制切斷電磁閥2激磁時所需的供應電源(即微電流或微電壓),而使得電磁閥2不會出現繼續激磁的現象(即電磁閥2之活塞板件21受其上的彈簧25反彈力作用而被推動組設於安全閥1之入氣道11的入口處),以作為切斷瓦斯氣體從安全閥1之進氣通道10處流入至入氣道11、氣室13及出氣道12的依據;(C)檢測判斷是否異常洩漏瓦斯氣體:當瓦斯氣體佈滿於安全閥1之入氣道11、氣室13、出氣道12及其管路3內部有一段時間後,利用安全閥1內部的壓力偵測器4所偵測之訊息傳輸至電路板(圖中未示)的控制處,作為判斷是否有異常洩漏瓦斯氣體的依據;然,本發明之檢測判斷是否為異常洩漏瓦斯氣體則必須優先排除國家測漏標準值所允許之洩漏量,換言之,若洩漏瓦斯氣體在國家測漏標準值所允許之洩漏量之內,則判定為非異常洩漏瓦斯氣體,反之,若洩漏瓦斯氣體流量大於國家測漏標準值所允許之洩漏量時,則判定為異常洩漏瓦斯氣體;(D)是否再次供應瓦斯氣體:當已位於安全閥1之入氣道11、氣室13、出氣道12及其管路3內部有一段時間的瓦斯氣體經由安全閥1內的壓力偵測器4所偵側之壓力數值小於預定數值或偵測數值 呈逐漸變小(即有洩漏的現象)時,控制電路板(圖中未示)將強制切斷電磁閥2激磁時所需的供應電源(即微電流或微電壓),而迫使電磁閥2不會再次產生激磁動作(即電磁閥2之活塞板件21能確實阻塞於安全閥1之入氣道11的入口處),以確保瓦斯氣體無法再次從進氣通道10處流入至安全閥1之入氣道11、氣室13、出氣道12及其管路3內部,而形成轉動旋鈕(圖中未示)後亦無法立即點燃爐火的無效操作;當已位於安全閥1之入氣道11、氣室13、出氣道12及其管路3內部有一段時間的瓦斯氣體經由安全閥1內的壓力偵測器4所偵側之壓力數值達到預定數值以上暨維持不變(即無洩漏的現象)時,控制電路板(圖中未示)將繼續提供電磁閥2激磁時所需的供應電源(即微電流或微電壓),而迫使電磁閥2在產生激磁動作後,其活塞板件21能確實被開啟(即電磁閥2激磁係指將其上的活塞板件21受吸力移動後而遠離安全閥1之入氣道11的入口處,換言之,該活塞板件21與安全閥1之入氣道11之入口間保持開放狀),以確保瓦斯氣體能再次從進氣通道10處流入至安全閥1之入氣道11、氣室13、出氣道12及其管路3內部,以利轉動旋鈕(圖中未示)操作後就能瞬間立即點燃爐火的有效操作。 Referring to Figures 1 to 2, the present invention provides a gas leakage prevention control method for a gas pipeline, which is as follows: (A) Forced supply of gas gas flow for a predetermined time: before igniting the fire, it must first The solenoid valve 2 is forcibly activated by a control element (not shown) to generate a magnetizing action for a predetermined time, so that the piston plate member 21 already located on the shaft rod 20 of the solenoid valve 2 can be away from the intake passage 10 of the safety valve 1. (that is, in an open state), and allowing gas to flow into the air inlet passage 11, the air chamber 13, and the air passage 1 which are filled with the safety valve 1 via the intake passage 10 of the safety valve 1. 2 and the inside of the pipe 3, at the same time, the gas gas which has been located in the gas chamber 13 can push the film member 41 upward (outer), and the magnetic member 45 already located on the film member 41 can be passed to the pressure detector. The direction of 4 is close for the pressure detector 4 to measure the pressure value; and the piston plate member 21 of the solenoid valve 2 and the inlet of the air inlet 11 of the safety valve 1 are normally closed; B) Forcibly cutting off the supply of gas: when the solenoid valve 2 is excited for a predetermined time, it is forcibly cut off the supply power (ie, micro current or micro voltage) required when the solenoid valve 2 is excited, so that the solenoid valve 2 is not There is a phenomenon of continued excitation (i.e., the piston plate member 21 of the solenoid valve 2 is pushed by the spring 25 of the solenoid valve 2 to be pushed into the inlet of the air inlet passage 11 of the safety valve 1) as a gas to cut off the gas. The basis of the intake passage 10 of the safety valve 1 flowing into the air inlet passage 11, the air chamber 13 and the air outlet passage 12; (C) detecting whether or not the gas gas is abnormally leaked: when the gas gas is filled in the air inlet passage 11 of the safety valve 1, After a period of time in the gas chamber 13, the air outlet 12 and its line 3, the pressure inside the safety valve 1 is utilized. The message detected by the detector 4 is transmitted to the control area of the circuit board (not shown) as a basis for judging whether there is abnormal gas leakage; however, the detection of the present invention determines whether it is abnormal gas leakage. Exclude the leakage allowed by the national leak test standard value. In other words, if the leaked gas is within the allowable leakage of the national leak test standard value, it is judged as non-abnormal gas gas leakage. Otherwise, if the gas flow gas leakage is greater than the country When the leak amount allowed by the leak test standard value is determined, it is determined as abnormal gas gas leakage; (D) whether gas gas is supplied again: when it is located in the air passage 11, the gas chamber 13, the air outlet 12, and the pipeline of the safety valve 1 3 The gas pressure inside the gas detector for a period of time is detected by the pressure detector 4 in the safety valve 1 and the pressure value is less than a predetermined value or a detected value. When it is gradually smaller (ie, there is a leakage phenomenon), the control circuit board (not shown) will forcibly cut off the supply power (ie, micro current or micro voltage) required when the solenoid valve 2 is energized, and force the solenoid valve 2 The excitation action is not generated again (ie, the piston plate member 21 of the solenoid valve 2 can be surely blocked at the inlet of the air inlet 11 of the safety valve 1) to ensure that the gas cannot flow again from the intake passage 10 to the safety valve 1 After entering the air passage 11, the air chamber 13, the air outlet 12 and the inside of the pipeline 3, and forming a turning knob (not shown), the invalid operation of the fire can not be immediately ignited; when the air inlet 11 of the safety valve 1 is located, The pressure value of the gas gas in the gas chamber 13, the air outlet 12 and the pipeline 3 for a period of time passing through the pressure detector 4 in the safety valve 1 reaches a predetermined value or more and remains unchanged (ie, no leakage phenomenon) When the control circuit board (not shown) will continue to supply the supply power (i.e., micro current or micro voltage) required for the solenoid valve 2 to be energized, and force the solenoid valve 2 to generate the piston plate member 21 after the excitation operation. Can be surely turned on (ie, the solenoid valve 2 is excited to refer to the piston plate 21 on it) After the suction is moved away from the inlet of the air inlet 11 of the safety valve 1, in other words, the piston plate member 21 and the inlet of the air inlet 11 of the safety valve 1 are kept open, to ensure that the gas can again pass from the intake passage 10 It flows into the air inlet 11 of the safety valve 1, the air chamber 13, the air outlet 12 and the inside of the pipeline 3, so that the effective operation of the fire can be ignited immediately after the operation of turning the knob (not shown).
本發明之安全防漏控制方法,在每次點燃爐火前,均能藉由控制元件(圖中未示)先行強制啟動電磁閥2激磁預定時間來供應瓦斯氣體流量流入佈滿於安全閥1之入氣道11、氣室13、出氣道12及其管路3內部後,再強制切斷電磁閥2激磁時所需的供應電源,並經由一定時間的檢測判別安全閥2之入氣道11、氣室13、出氣道12及其管路3內部的壓力值是否維持一致,而作為電磁閥2是否能再次被開啟供應瓦 斯流量的依據,如此,不論是點燃爐火前的安全閥1或其管路3內部有大洩漏或小洩漏時,均能完全有效地切斷安全閥1的瓦斯供氣來源,以確實達到杜絕邊使用邊洩漏的一氧化碳中毒現象及防止瓦斯氣爆的意外危險發生為其進步性之功效。 The safety leakage prevention control method of the present invention can supply the gas flow rate into the safety valve 1 by forcibly starting the electromagnetic valve 2 for a predetermined time by a control element (not shown) before each ignition of the fire. After entering the air passage 11, the air chamber 13, the air outlet 12, and the inside of the pipeline 3, the power supply required for the electromagnetic valve 2 to be energized is forcibly cut off, and the air inlet passage 11 of the safety valve 2 is discriminated by the detection of a certain time. Whether the pressure values inside the air chamber 13, the air outlet 12, and the pipeline 3 thereof are consistent, and whether the solenoid valve 2 can be opened again. Based on the flow rate, the gas supply source of the safety valve 1 can be completely and effectively cut off, whether it is a large leak or a small leak inside the safety valve 1 or its line 3 before the ignition. Eliminating the carbon monoxide poisoning phenomenon while using the side leakage and preventing the accidental danger of gas explosion occur as a progressive effect.
以上所述者,僅為本創作之較佳實施例而已,並非用來限定本創作實施之範圍;故即凡依本創作申請範圍所述之特徵及精神所為之均等變化或修飾,均應包括於本創作之申請專利範圍內。 The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention; therefore, any changes or modifications to the features and spirits described in the scope of the present application should include Within the scope of the patent application of this creation.
A‧‧‧步驟 A‧‧‧Steps
B‧‧‧步驟 B‧‧‧Steps
C‧‧‧步驟 C‧‧‧Steps
D‧‧‧步驟 D‧‧‧Steps
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TWI655384B (en) * | 2017-12-27 | 2019-04-01 | 黃羽嬋 | Gas system automatically nippers |
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CN112377818B (en) * | 2020-11-13 | 2023-01-17 | 江苏杰霸物联网科技有限公司 | Gas leakage monitoring device based on intelligent gas and use method thereof |
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TWI246571B (en) * | 2004-09-17 | 2006-01-01 | Chen Jr Chiuan | Electronic fuel gas safety device |
TWI285248B (en) * | 2005-09-30 | 2007-08-11 | Jin Bo Shr Industry Co Ltd | Gas leakage detector |
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TWI246571B (en) * | 2004-09-17 | 2006-01-01 | Chen Jr Chiuan | Electronic fuel gas safety device |
TWI285248B (en) * | 2005-09-30 | 2007-08-11 | Jin Bo Shr Industry Co Ltd | Gas leakage detector |
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TWI655384B (en) * | 2017-12-27 | 2019-04-01 | 黃羽嬋 | Gas system automatically nippers |
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