龍門瓦斯工程股份有限公司 -- Blender System, Pressure regulating station: Design & Fabrication
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Blender System, Pressure regulating station: Design & Fabrication   
0522外框
美國 EEI公司 混氣設備
Blender System Made by EEI with FM Approval
★ The KEY BENEFITS from a Standby System
★ SNG is an ENERGY MANAGEMENT TOOL

1. An SNG System allows burning the most economical fuel:

The client can burn the most economical fuel, whether it is natural gas or SNG.

Explanation

An SNG System allows the Customer options. He is not held hostage to a certain fuel tariff. The is important, for example, in areas where the Customers price per MCF of natural gas dictated by the MDQ (Maximum Daily Flow) consumed at his/her facility. The SNG plant allows the customer to monitor his gas consumption and use the SNG system to prevent exceeding his maximum daily allotment and thus incurring significant costs!

Another example could be – the Customer can monitor the cost per BTU of SNG versus NG. Which is cheaper? We'll – use the cheaper one! Or - use the OPTION of burning SNG as motivation to have the NG supplier reduce their price. Again – the key is “options” – energy management options!

SNG is an ENERGY MANAGEMENT TOOL!

2. An SNG System allows the Customer to obtain an interruptible Natural Gas Rate:

The client can obtain discounted interruptible rates from the natural gas suppliers. The client signs a contract with the natural gas supplier stating their NG supply can be interrupted during periods of high demand. The client's gas requirement during this potential curtailment period is met by the standby system.

Explanation

The price differential between the firm rate and the interruptible rate provides a savings that typically provides an ROI sufficient to pay the SNG System off in 8-48 months.

3. An SNG System ensures an uninterrupted fuel supply:

The client assures himself of an uninterrupted fuel supply even during an emergency. SNG is the best insurance policy possible against any level of NG interruptions.

Explanation

Uninterrupted fuel supply is especially important for process loads where the risk of curtailment can have huge financial consequences. For example, glass manufacturers, ceramics companies, bakeries, green houses, steel facilities and so on.

4. SNG is an accepted backup fuel when fuel oil is not feasible:

Oil as an alternate fuel is often not feasible due to environmental legislation. A good example is Southern California. Pretty much across the county, precautions required by law to safeguard against leaky underground oil storage tanks also makes permitting and installation both difficult and expensive. The use of oil will also require special burners and significant adjustments to switch from natural gas to oil. To be Blunt – using oil as a standby fuel to natural gas is a pain in the butt! Don't believe me? Ask the maintenance guys who have to run the system!

Explanation

The “environmental motivation” for purchase of an SNG System is generally weak except in areas of heavy environmental legislation. However, the nuisance factor and general dislike by most plant maintenance and operator personnel of oil fired back-up for natural gas, makes this an issue worth bringing up!
使用混氣的優點
1
作為備用系統,如此可獲得雙燃料供應的保障,工廠生產線不會因為天然氣公司的停氣,而停止生產。
2
燃料費的節省,例如:
( 1 )
美國有些天然氣公司對於天氣價格的制定,是依照用戶所使用的時段不同而有不同的價格(尖峰時段價格較貴),因此用戶可在天然氣價格較高的時段,使用混氣(代天然氣)來因應。
( 2 )
天然氣公司和用戶簽定使用契約量,當用戶用量超過契約量時,天然氣的價格將會倍增,因此用戶可在天然氣用量即將超過契約量時 ,改使用混氣(代天然氣)來因應。
( 3 )
天然氣公司和用戶簽一合同,言明在用氣尖峰時段,限制客戶的天然氣用量,以換取用氣費用的打折優惠;而客戶為爭取優惠氣價,暫時使用混氣系統來滿足生產線。
混氣設備的應用
1
將液化石油氣(LPG)混合空氣成為代天然氣(SNG),作為使用天然氣燃燒設備的備用燃料或作為調峰用途。
2
因天然氣之發熱量在8500 kcal / m3~8900kcal / m3 之間起伏,為了穩定燃燒品質,可將天然氣(NG) 混合空氣,將發熱量降低並穩定在 8300kcal / m3,以提高燃燒品質。
3
因都市瓦斯之發熱量為 2800 kcal / m3~3300kcal / m3 ,煤氣公司為了供應用戶穩定熱值之瓦斯,可將煤氣混合液化石油氣,將發熱量提高並穩定瓦斯熱值在3500kcal / m3。
4
煤氣公司為了迎接未來天然氣的供應(大陸地區),可利用混氣設備將都市瓦斯混液化石油氣或將液化石油氣混空氣成為代天然氣(SNG),來供給用戶使用,未來當天然氣到位時,用戶可不必更換爐具噴嘴口徑,即可立刻轉換使用天然氣,原有之混氣設備可當備用系統或調峰用途。
頁數
3

龍門瓦斯工程股份有限公司
台灣臺北縣 24443 林口鄉嘉寶村1鄰3號
LONG MEN GAS ENGINEERING CO., LTD.
NO. 3. LIN 1. CHIA PAO VILLAGE.LIN KUO HSIANG.
TAIPEI HSIEN. TAIWAN
Tel: 886-2-26051913(5 lines) Fax: 886-2-26051918
E-MAIL:lmgas@ms58.hinet.net