Tail gas exhausting pressure stabilization control system

Abstract

A tail gas exhausting pressure stabilization control system can control the pressure and the flow rate of a gas and a driving gas inputted therein, such that when the gas and the driving gas are mixed and outputted to a tail gas exhausting outlet, the pressure thereof can be controlled under a predetermined pressure. Besides, when the back pressure is generated because of the exhausted gases from the outlet, an energy-saving module can adjust the pressure of the driving gas outputted to an eductor in accordance with the detecting result of the back pressure in order to resist the back pressure. Thus, the exhausted gases from the outlet can be still under the predetermined pressure between the gas and a gas distribution component so as to stabilize the pressure and flow rate of the exhausted gases from the outlet and save the driving gas.

What is claimed is: 
     
         1 . A tail gas exhausting pressure stabilization control system, provided with a tail gas inlet configured to receive a gas, a driving gas supplying end configured to receive a driving gas and a tail gas exhausting outlet configured to output the gas and the driving gas or output the gas and the driving gas after mixing the gas and the driving gas, wherein the tail gas exhausting pressure stabilization control system is characterized in comprising:
 a gas distribution component, connected to the tail gas inlet to receive the gas;   a flow stabilization module, connected to the gas distribution component to receive the gas and control a flow rate of the gas outputted from the flow stabilization module;   an eductor, connected to the flow stabilization module and the tail gas exhausting outlet, wherein the eductor receives the gas and conveys the gas into the tail gas exhausting outlet;   a driving gas flowing component, connected to the driving gas supplying end to receive the driving gas;   an energy-saving module, connected to the driving gas flowing component and the eductor, wherein the energy-saving module receives the driving gas and adjusts a pressure of the driving gas outputted to the eductor in accordance with a detecting result of a back pressure;   an energy-saving pressure control loop, wherein one end thereof is connected to the energy-saving module and the other end thereof is connected to a tail gas exhausting hose between the eductor and the tail gas exhausting outlet, wherein the energy-saving pressure control loop receives the back pressure inputted by the tail gas exhausting hose for the energy-saving module to detect the back pressure and adjust the pressure of the driving gas in accordance with the detecting result of the back pressure; and   a pressure regulation/distribution module, connected to the driving gas flowing component and the energy-saving pressure control loop, wherein the pressure regulation/distribution module receives the driving gas from the driving gas flowing component and adjusts the pressure of the driving gas to an adjusted pressure and outputs the driving gas to the energy-saving pressure control loop in order to convey the driving gas to the tail gas exhausting hose via the energy-saving pressure control loop.   
     
     
         2 . The tail gas exhausting pressure stabilization control system of  claim 1 , wherein the eductor generates a vacuum pressure in accordance with a pressure provided by the driving gas, wherein the eductor draws the gas via the vacuum pressure in order to output the gas and the driving gas to the tail gas exhausting outlet after mixing the gas and the driving gas. 
     
     
         3 . The tail gas exhausting pressure stabilization control system of  claim 1 , further comprising a safety outlet connected to the gas distribution component, wherein a safety relief valve is disposed between the safety outlet and the gas distribution component, wherein when a gas pressure value of the gas inside the safety relief valve is greater than an exhausting threshold value, the safety relief valve is turned on to exhaust the gas therefrom. 
     
     
         4 . The tail gas exhausting pressure stabilization control system of  claim 3 , wherein a gas stabilization/compensation valve is disposed between the safety relief valve and the gas distribution component, wherein the gas stabilization/compensation valve is further connected to the pressure regulation/distribution module to receive the gas from the gas distribution component or receive the driving gas from the pressure regulation/distribution module, wherein when the gas stabilization/compensation valve receives the gas due to excessively high pressure, the gas stabilization/compensation valve outputs the gas to the safety relief valve, wherein when the gas stabilization/compensation valve receives the driving gas, the gas stabilization/compensation valve adjusts the pressure of the driving gas to a compensation pressure so as to output the driving gas to the gas distribution component. 
     
     
         5 . The tail gas exhausting pressure stabilization control system of  claim 1 , wherein the energy-saving module increases the pressure of the driving gas outputted from the energy-saving module, whereby the pressure of the driving gas inputted into the energy-saving module is less than the pressure of the driving gas outputted from the energy-saving module. 
     
     
         6 . The tail gas exhausting pressure stabilization control system of  claim 1 , further comprising:
 a pressure detecting component, disposed on the gas distribution component to detect a gas pressure value of the gas and determine whether the gas pressure value recorded by a pressure signal thereof is greater than a pressure threshold value set by the pressure detecting component in order to generate a signal in accordance with a detecting result of the gas;   an exhausting control component, connected to the pressure detecting component to receive the pressure signal; and   a safety outlet, connected to the gas distribution component, wherein a safety relief valve is disposed between the safety outlet and the gas distribution component, wherein when exhausting control component receives a determination from the pressure detecting component and the determination shows that the gas pressure value is greater than the pressure threshold value, the exhausting control component turns on the safety relief valve, whereby the gas inside the gas distribution components passes through the safety relief valve and is exhausted via the safety outlet.   
     
     
         7 . The tail gas exhausting pressure stabilization control system of  claim 1 , further comprising a gas stabilization/compensation valve connected to the pressure regulation/distribution module and the gas distribution component, wherein the gas stabilization/compensation valve receives the driving gas from the pressure regulation/distribution module and adjusts the pressure of the driving gas to a compensation pressure and outputs the driving gas to the gas distribution component. 
     
     
         8 . The tail gas exhausting pressure stabilization control system of  claim 1 , further comprising an energy-saving pressure compensation module disposed on the energy-saving pressure control loop, wherein the energy-saving compensation module has a flow limiting micro-tube configured to receive the driving gas from the pressure regulation/distribution module in order to stabilize the pressure of the driving gas, wherein a back-pressure valve is disposed between the flow limiting micro-tube and the tail gas exhausting hose and the back-pressure valve is configured to output the driving gas to the tail gas exhausting hose. 
     
     
         9 . The tail gas exhausting pressure stabilization control system of  claim 1 , further comprising a vacuum micro-regulation module, wherein one end thereof is connected to the energy-saving pressure control loop and the other end thereof is connected to a connection point between the flow stabilization module and the eductor, wherein the vacuum micro-regulation module receives a portion of the driving gas or the back pressure from the energy-saving pressure control loop in order to connect the driving gas or the back pressure and the gas outputted from the flow stabilization module to the eductor, whereby the eductor outputs the gas or the back pressure to the tail gas exhausting outlet. 
     
     
         10 . A tail gas exhausting pressure stabilization control system, provided with a tail gas inlet configured to receive a gas, a driving gas supplying end configured to receive a driving gas and a tail gas exhausting outlet configured to output the gas and the driving gas or output the gas and the driving gas after mixing the gas and the driving gas, wherein the tail gas exhausting pressure stabilization control system is characterized in comprising:
 a gas distribution component, connected to the tail gas inlet to receive the gas;   a flow stabilization module, connected to the gas distribution component to receive the gas and control a flow rate of the gas outputted from the flow stabilization module;   a pressurizing component, connected to the flow stabilization module and the tail gas exhausting outlet, wherein the pressurizing component draws the gas outputted from the flow stabilization module and conveys the gas to the tail gas exhausting outlet;   a driving gas flowing component, connected to the driving gas supplying end to receive the driving gas; and   a pressure regulation/distribution module, wherein one end thereof is connected to driving gas flowing component and the other end thereof is connected to a connection point between flow stabilization module and the pressurizing component, wherein the pressure regulation/distribution module receives the driving gas from the driving gas flowing component and adjusts a pressure of the driving gas to an adjusted pressure for the pressurizing component to draw the driving gas, whereby the driving gas and the gas are mixed with each other and outputted to the tail gas exhausting outlet.   
     
     
         11 . The tail gas exhausting pressure stabilization control system of  claim 10 , further comprising a bypass module of pressurizing component, wherein one end thereof is connected to the connection point between the flow stabilization module and the pressurizing component and the other end thereof is connected to a connection point between the pressurizing component and the tail gas exhausting outlet, wherein the bypass module of pressurizing component receives the gas, the driving gas or a mixed gas of the gas and the driving gas, outputted from the pressurizing component, and outputs the gas, the driving gas or the mixed gas to the connection point between the flow stabilization module and the pressurizing component after adjusting the flow rate thereof, whereby the pressurizing component receives the gas, the driving gas or the mixed gas again in order to form a loop. 
     
     
         12 . The tail gas exhausting pressure stabilization control system of  claim 10 , further comprising a safety outlet connected to the gas distribution component, wherein a safety relief valve is disposed between the safety outlet and the gas distribution component, wherein when a gas pressure value of the gas inside the safety relief valve is greater than an exhausting threshold value, the safety relief valve is turned on to exhaust the gas therefrom. 
     
     
         13 . The tail gas exhausting pressure stabilization control system of  claim 12 , wherein a gas stabilization/compensation valve is disposed between the safety relief valve and the gas distribution component, wherein the gas stabilization/compensation valve is further connected to the pressure regulation/distribution module to receive the gas from the gas distribution component or receive the driving gas from the pressure regulation/distribution module, wherein when the gas stabilization/compensation valve receives the gas, the gas stabilization/compensation valve outputs the gas to the safety relief valve, wherein when the gas stabilization/compensation valve receives the driving gas, the gas stabilization/compensation valve adjusts the pressure of the driving gas to a compensation pressure so as to output the driving gas to the gas distribution component. 
     
     
         14 . The tail gas exhausting pressure stabilization control system of  claim 10 , further comprising:
 a pressure detecting component, disposed on the gas distribution component to detect a gas pressure value of the gas and determine whether the gas pressure value recorded by a pressure signal thereof is greater than a pressure threshold value set by the pressure detecting component in order to generate a signal in accordance with a detecting result of the gas;   an exhausting control component, connected to the pressure detecting component to receive the signal; and   a safety outlet, connected to the gas distribution component, wherein a safety relief valve is disposed between the safety outlet and the gas distribution component, wherein when exhausting control component receives a determination from the pressure detecting component and the determination shows that the gas pressure value is greater than the pressure threshold value, the exhausting control component turns on the safety relief valve, whereby the gas inside the gas distribution components passes through the safety relief valve and is exhausted via the safety outlet.   
     
     
         15 . The tail gas exhausting pressure stabilization control system of  claim 10 , further comprising a vacuum regulation component disposed between the pressure regulation/distribution module and the pressurizing component, wherein the vacuum regulation component adjusts a gas pressure value of a tail gas exhausting hose between the vacuum regulation component and the pressurizing component to an adjustment threshold value.