CN207892674U - A kind of vapor recycling system and energy saver of Steam Turbine - Google Patents

Abstract

The utility model provides a kind of vapor recycling system and energy saver of Steam Turbine, is related to thermoelectricity and energy conservation and environmental protection field.The steam recycling device of boiler turbine group, what it is by the preliminary recycling of preheater and evaporator is the used steam of Steam Turbine, fully recycling heat, waste heat is recycled again by heat exchanger, further utilize heat, efficiency of energy utilization is further improved, achievees the purpose that improve efficiency of energy utilization；Using the energy saver of the device, steam and heat can be made full use of, achievees the effect that utilization ratio and environmental protection and energy saving.

Description

A kind of vapor recycling system and energy saver of Steam Turbine

Technical field

The utility model is related to thermoelectricity and energy conservation and environmental protection fields, in particular to a kind of Steam Recovery of Steam Turbine Utilize system and energy saver.

Background technology

As economic constantly advances, social is constantly progressive, and the energy demand of people is also increasing, however, In our industrial production, the problem of energy waste, always exists, especially the industry of some highly energy-consumings, in thermoelectricity industry In, it is discharged and slatterned by exhaust gas there are a large amount of heat.

In thermoelectricity industry is, steam is generated to generate electricity by the fossil fuel largely to burn, after fuel combustion, is had A large amount of exhaust gas can take away partial heat；In addition after back pressure steam turbines utilized steam, some steam can emit, The energy is caused largely to be wasted；I.e. steam also has very high kinetic energy and heat, can all recycle again, but existing Even if the low situation of organic efficiency that had if having recycling occur, can still the energy be caused to waste, therefore, led to It is exactly crucial to cross and how to improve efficiency of energy utilization.

Utility model content

The purpose of this utility model is to provide the vapor recycling system of Steam Turbine, the steam recycling devices By setting preheater and evaporator, tentatively the used exhaust gas of Steam Turbine is utilized, it is then sharp again by heat exchanger Heat exchange is carried out with waste heat, heating efficiency is improved by multiple heat recovery using waste heat.

The utility model it is other be designed to provide a kind of energy saver, which can preferably improve heat Utilization ratio.

The utility model is realized in this way：

A kind of vapor recycling system of Steam Turbine, including：

For generating the boiler of steam, the frequency conversion fan for being installed on boiler, the Steam Turbine being connected to boiler, Steam Turbine It is provided with shunt catheter, shunt catheter includes the first connecting tube and the second connecting tube, the first connecting tube and preheating for heating Device is connected to, and the second connecting tube is connected to the evaporator for evaporation, and shunt catheter is additionally provided with adjusting and is transported to the first connecting tube With the flow regulator of the second connecting tube flow；And the heat exchanger being connected to evaporator, boiler be provided with filling liquid into Liquid mouth, the liquid outlet for discharging waste liquid and the gas vent that is connected to Steam Turbine, liquid outlet respectively with preheater and the steaming Send out device connection；

Steam Turbine includes the pressurized segment that steam pressurizes and the power transportation section by Steam Actuation, and pressurized segment is provided with Air inlet, pressurized segment are connected to by air inlet with the boiler, and power transportation section is provided with high-pressure exhaust, shunt catheter setting In high-pressure exhaust；

Preheater includes pre- hydrothermal solution inlet tube, pre- hydrothermal solution outlet, Preheated steam inlet tube and preheating condensate outlet pipe And the drain pipe of discharging liquid, evaporator are provided with evaporation inlet tube, evaporation outlet, steam inlet pipe and steam (vapor) outlet Pipe, outlet are connected to Preheated steam inlet tube and steam inlet pipe respectively, and pre- hydrothermal solution outlet is connected to evaporation inlet tube, in advance Hydrothermal solution inlet tube is connected to heat exchanger, and evaporation outlet is connected to gas vent, and steam outlet pipe is connected to heat exchanger；It preheats cold Condensate outlet pipe is connected to drain pipe；

Heat exchanger includes shell and heat exchanger tube, and heat exchanger tube is set to the inside of shell, heat exchanger tube include heat exchange inducer and Exchange heat outlet section, and heat exchange inducer is connected to pre- hydrothermal solution inlet tube, and heat exchange outlet section is provided with the floss hole of discharging liquid, heat exchange Inducer and heat exchange outlet section run through shell；

Heat exchanger tube is coiled pipe.

Further, in the utility model preferred embodiment, power transportation section includes power shell and is set to shell The internal turbine disk and line shaft, line shaft are fixedly connected with the turbine disk, and high-pressure exhaust is set to shell, high-pressure exhaust It is provided with Ji Qigai.

Further, in the utility model preferred embodiment, Ji Qigai includes lid portion, transition part and outlet, Transition part is set between lid portion and outlet, and transition part is gradually reduced from lid portion to the diameter of outlet.

Further, in the utility model preferred embodiment, condensate liquid inlet tube and condensate outlet pipe is arranged in shell, Condensate liquid inlet tube is connected to evaporation outlet, and condensate outlet pipe is provided with condensate discharge pipe.

Further, the support plate of support heat exchanger tube is additionally provided in the utility model preferred embodiment, in shell.

Further, further include separator in the utility model preferred embodiment, separator includes steam segment and returns Section is flowed, steam segment is provided with low-pressure steam outlet pipe, and reflux section is provided with phegma floss hole.

Further, in the utility model preferred embodiment, the inner wall of reflux section is provided with multiple spiral drainage troughs, Spiral drainage trough extends along the circumferential downward spiral of reflux section.

A kind of energy saver, energy saver include the vapor recycling system of above-mentioned Steam Turbine.

The utility model has the beneficial effects that：A kind of vapor recycling system of Steam Turbine, passes through preheater and steaming Send out the preliminary recycling of device is the used steam of Steam Turbine, fully recycles heat, and profit is recycled again by heat exchanger With waste heat, heat is further utilized, by the way that flow regulator is arranged, the distribution of gas is adjusted, improves the energy utilization effect of gas Rate further improves efficiency of energy utilization, achievees the purpose that improve efficiency of energy utilization；Use the energy saving dress of the device It sets, steam and heat can be made full use of, achieve the effect that utilization ratio and environmental protection and energy saving.

Description of the drawings

It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not The restriction to range is should be considered as, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other relevant attached drawings.

Fig. 1 is the schematic diagram for the vapor recycling system that the utility model embodiment 1 provides；

Fig. 2 is the schematic diagram for the Ji Qigai that the utility model embodiment provides；

Fig. 3 is the schematic diagram for the heat exchanger that the utility model embodiment provides；

Fig. 4 is the schematic diagram for the separator that the utility model embodiment provides.

Icon：100- vapor recycling systems；101- frequency conversion fans；101a- frequency converters；101b- wind turbines；110- pots Stove；111- inlets；112- liquid outlets；113- gas vents；120- Steam Turbines；121- pressurized segments；121a- air inlets； 122- power transportation section；123- power shells；123a- high-pressure exhausts；The 124- turbine disks；125- line shafts；126- collection vapour Lid；127- lids portion；128- transition parts；129- outlets；129a- shunt catheters；The first connecting tubes of 129b-；129c- second Connecting tube；129d- flow regulators；130- preheaters；The pre- hydrothermal solution inlet tubes of 131-；The pre- hydrothermal solution outlets of 132-；133- is preheated Steam inlet pipe；134- preheats condensate outlet pipe；135- drain pipes；140- evaporators；141- evaporates inlet tube；142- evaporates Outlet；143- steam inlet pipes；144- steam outlet pipes；150- heat exchangers；151- shells；152- heat exchanger tubes；153- is condensed Liquid inlet tube；154- condensate outlet pipes；155- heat exchange inducers；156- heat exchange outlet sections；157- support plates；160- separators； 161- steam segments；162- reflux sections；163- low-pressure steam outlets；164- phegma floss holes；165- steam inlets；166- spiral shells Revolve drainage trough.

Specific implementation mode

To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality Embodiment in novel, those of ordinary skill in the art are obtained every other without creative efforts Embodiment shall fall within the protection scope of the present invention.Therefore, the implementation to the utility model provided in the accompanying drawings below The detailed description of mode is not intended to limit claimed the scope of the utility model, but is merely representative of the utility model Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor The every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that term "vertical", "horizontal", "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of Describe the utility model and simplify to describe, do not indicate or imply the indicated equipment or element must have a particular orientation, With specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features are in direct contact, and can also not be to be in direct contact but lead to including the first and second features Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the One feature is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special Sign second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only Indicate that fisrt feature level height is less than second feature.

Embodiment 1 is referring to figs. 1 to shown in Fig. 4

Referring to Fig. 1, the utility model provides vapor recycling system 100, includes the boiler 110 for generating steam, The frequency conversion fan 101 being fixedly connected with boiler 110, the Steam Turbine 120 of steam generated using boiler 110, preheater 130, Evaporator 140, heat exchanger 150 and separator 160.

Referring to Fig.1, frequency conversion fan 101 is connect with boiler 110, and frequency conversion fan 101 includes frequency converter 101a and wind turbine 101b, Frequency converter 101a can adjust wind turbine 101b according to operating condition at any time by the operation of frequency control wind turbine 101b.

Boiler 110 is provided with inlet 111, liquid outlet 112 and gas vent 113, can be by medium by inlet 111 In be filled into boiler 110, heating evaporation forms steam in boiler 110, and provides gas vent 113 and is transported to Steam Turbine In 120.After 110 use of boiler, media discharge can be fallen by liquid outlet 112.Can there is medium in the present embodiment As heating and gas generating agent, since water derives from a wealth of sources, specific heat capacity is larger, is very suitable for making for multiple choices, preferably water For medium；Additionally, due to boiler 110 is used for a long time, incrustation scale is easy tod produce, some cleaning solutions are added by inlet 111, also may be used Easily to remove incrustation scale etc., then cleaning fluid discharge is fallen by liquid outlet 112, ensures the safe operation of boiler 110.Because If generating incrustation scale in boiler 110 and not clearing up for a long time, the uneven heating for being easy to cause boiler 110 is even, since boiler 110 is heated It is uneven, it is just easy to that accident occurs, therefore boiler 110 needs frequent regularly cleaning.

Referring to Figures 1 and 2, Steam Turbine 120 includes pressurized segment 121 and power transportation section 122, and pressurized segment 121 is provided with The steam generated in boiler 110 is introduced into Steam Turbine 120 by air inlet 121a by air inlet 121a, will by pressurized segment 121 Steam carries out pressurized treatments so that steam has higher pressure, and then steam will enter power transportation section 122.

Power transportation section 122 includes power shell 123, the turbine disk 124 and line shaft 125, and the turbine disk 124 is set to power In shell 123, line shaft 125 is fixedly connected with the turbine disk 124 and extends outwardly through power shell 123, and line shaft 125 with Power shell 123 has good obturation effect.The steam of high temperature and pressure enters in power shell 123, pushes the turbine disk 124 Rotation, and line shaft 125 is driven to rotate, line shaft 125 is connect with external device, and external device (ED) can be that propeller can also It is electromagnetic generator etc..After the Steam Actuation turbine disk 124 of high temperature and pressure moves, pass through the high pressure being arranged on power shell 123 Exhaust outlet 123a discharges, high-pressure exhaust 123a are connected to collection vapour lid 126, and the steam of high temperature and pressure further passes through Ji Qigai 126 discharges.

With reference to Fig. 2, collection vapour lid 126 is connected through a screw thread (not shown) with power transportation section 122 and is fixedly connected；Collect vapour Lid 126 includes lid portion 127, transition part 128 and outlet 129, and the inner wall in lid portion 127 is threaded structure and (does not show in figure Go out), it is fixedly connected with power transportation section 122 by helicitic texture by vapour lid 126 is collected；The longitudinal section of transition part 128 is in a class The structure of taper, transition part 128 is gradually reduced from the radius of more than half radial outlet 129 in lid portion 127 and transition is gone out The radius size of mouth pipe 129, forms a cone shell structure, outlet 129 is arranged at the top of cone, when steam is defeated in power After sending 122 use of section, through collecting the outlet 129 of vapour lid 126, it is transported to preheater 130 and evaporator 140.Lid portion 127 is also set It is equipped with mounting ear, facilitates and other external equipments is installed.

Outlet 129 is connected to shunt catheter 129a, and shunt catheter 129a includes the first connecting tube 129b, the second connecting tube 129c and flow regulator 129d is connected to the first connecting tube 129b with preheater 130, the second connecting tube 129c and evaporator 140 connections；High temperature and high pressure steam is transported to 130 He of preheater by the first connecting tube 129b and the second connecting tube 129c respectively Evaporator 140, and the displacement for being respectively delivered to preheater 130 and evaporator 140 can specifically be adjusted according to actual conditions, it is real The tentatively preheating of existing preheater 130, by further continuing heating evaporation by evaporator 140 after preheater 130, therefore it is logical Adjustment flow regulator 129d appropriate is crossed, the ratio for being transported to 140 displacement of preheater 130 and evaporator can be adjusted, it can To improve the utilization ratio of the heat in steam, reach the maximization of utilizing status, can effective energy saving use, make The utilization rate of the energy maximizes.

Referring to Fig.1, preheater 130 includes pre- hydrothermal solution inlet tube 131, pre- hydrothermal solution outlet 132, Preheated steam inlet tube 133 and preheating condensate outlet pipe 134 and discharging liquid drain pipe 135, drain pipe 135 and preheating condensate outlet pipe 134 connections；Preheated steam inlet tube 133 is connected to outlet 129, and preheater 130 is delivered a vapor to by outlet 129 In；Pre- thermal medium is transported in preheater 130 by pre- hydrothermal solution inlet tube 131；By being transported to the steam of preheater 130 to pre- Thermal medium is preheated.It should be noted that in the present embodiment there are many selections of pre- thermal medium, it is preferably pre- in the present embodiment Thermal medium is water.

Preheater 130 tentatively heats water, i.e., steam and water is simply exchanged heat by preheater 130, water is heated, The water of heating is transported in evaporator 140 by pre- hydrothermal solution outlet 132 and carries out heating evaporation.Due to the water in preheater 130 During generally carrying out heat exchange all in the steam in lower temperature, being to be transported to preheater 130, it is easy to will Steam condenses, the water for making steam have gaseous state to be changed into liquid, then passes through the preheating condensate outlet pipe 134 of setting and discharge The drain pipe 135 of liquid discharges.

Referring to Fig.1, evaporator 140 includes evaporation inlet tube 141, evaporation outlet 142, steam inlet pipe 143 and steam Outlet 144, evaporation inlet tube 141 are connected to pre- hydrothermal solution outlet 132, will be transported to steaming by the water of 130 waste heat of preheater It sends out in device 140.

Steam inlet pipe 143 is connected to the outlet 129 of Steam Turbine 120, and outlet 129 is arranged to an isocon, There is isocon that the steam in outlet 129 is respectively delivered in preheater 130 and evaporator 140.

In evaporator 140, the water heating and gasifying further being had been warmed up by steam, evaporation obtains vapor；Pass through The steam conveying that evaporation obtains is dealt into Steam Turbine 120 by steam outlet pipe 144；In addition it can also will be steamed in evaporator 140 The steam that hair obtains, which is connected in other equipment, to be used.

Since water has preheated in preheater 130, in evaporator 140, from the steam of the conveying of Steam Turbine 120 Very high energy can also be carried and do not liquefied, therefore heat exchanger is transported to from steam outlet pipe 144 by also not liquefied steam In 150, the method for continuing through heat exchange utilizes waste heat.

With reference to Fig. 3, heat exchanger 150 includes shell 151 and heat exchanger tube 152, and heat exchanger tube 152 is set to the interior of shell 151 Portion, shell 151 are provided with condensate liquid inlet tube 153 and condensate outlet pipe 154.Condensate liquid inlet tube 153 is defeated by external interface Enter water cooling medium, condensate liquid inlet tube 153 is connect with external interface simultaneously with pre- hydrothermal solution inlet tube 131, and external interface is by water It is respectively delivered to condensate liquid inlet tube 153 and pre- hydrothermal solution inlet tube 131, water is input to by heat exchange by condensate liquid inlet tube 153 In the shell 151 of device 150, after heat exchange, water is discharged by condensate outlet pipe 154.

Heat exchanger tube 152 is coiled pipe, and the main part of heat exchanger tube 152 is arranged inside shell 151, and heat exchanger tube 152 is set It is equipped with heat exchange inducer 155 and heat exchange outlet section 156, heat exchange inducer 155 and heat exchange outlet section 156 run through shell 151, heat exchange Inducer 155 is connect with the steam outlet pipe 144 of evaporator 140；Heat exchange outlet section 156 is connect with separator 160, by detaching Device 160 carries out vapor-liquid separation.Support plate 157 is additionally provided with inside shell 151, support plate 157 is used to support heat exchanger tube 152.

With reference to Fig. 4, separator 160 includes steam segment 161 and reflux section 162, and steam segment 161 is provided with low-pressure steam Outlet 163, phegma floss hole 164 is provided in reflux section 162.It is additionally provided with steam inlet 165, steam in steam segment 161 Import 165 is connected to the condensate outlet pipe 154 of heat exchanger 150.

162 inner wall of reflux section of separator 160 is provided with spiral drainage trough 166, and spiral drainage trough 166 is along reflux section 162 Circumferential downward spiral extend.The setting of spiral drainage trough 166, can be to avoid the unboiled irregular flowing of evaporation medium； Meanwhile after having little time the steam liquefied drained, the spiral drainage trough 166 that can also pass through separator 160 flows downward, and improves cold Solidifying and reflux efficiency.

The present embodiment also provides a kind of energy saver, which is equipped with above-mentioned vapor recycling system 100.

Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model Within then, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (8)

1. a kind of vapor recycling system of Steam Turbine, which is characterized in that including：

It is described for generating the boiler of steam, the frequency conversion fan for being installed on the boiler, the Steam Turbine being connected to the boiler Steam Turbine is provided with shunt catheter, and the shunt catheter includes the first connecting tube and the second connecting tube, first connecting tube It is connected to preheater for heating, second connecting tube is connected to the evaporator for evaporation, and the shunt catheter is also set It is equipped with the flow regulator for adjusting and being transported to first connecting tube and the second connecting tube flow；And with the evaporator The heat exchanger of connection, the boiler be provided with filling liquid inlet, discharge waste liquid liquid outlet and with the steam turbine The gas vent of group connection, the liquid outlet are connected to the preheater and the evaporator respectively；

The Steam Turbine includes the pressurized segment that steam pressurizes and the power transportation section by Steam Actuation, and the pressurized segment is set It is equipped with air inlet, the pressurized segment is connected to by the air inlet with the boiler, and the power transportation section is provided with high pressure Gas port, the shunt catheter are set to the high-pressure exhaust；

The preheater includes pre- hydrothermal solution inlet tube, pre- hydrothermal solution outlet, Preheated steam inlet tube and preheating condensate outlet pipe And the drain pipe of discharging liquid, the evaporator are provided with evaporation inlet tube, evaporation outlet, steam inlet pipe and steam and go out Mouth pipe, the outlet are connected to the Preheated steam inlet tube and the steam inlet pipe respectively, the pre- hydrothermal solution outlet It is connected to the evaporation inlet tube, the pre- hydrothermal solution inlet tube is connected to the heat exchanger, the evaporation outlet and the gas Body outlet, the steam outlet pipe are connected to the heat exchanger；The preheating condensate outlet pipe connects with the drain pipe It is logical；

The heat exchanger includes shell and heat exchanger tube, and the heat exchanger tube is set to the inside of the shell, and the heat exchanger tube includes Inducer exchange heat with heat exchange outlet section, the heat exchange inducer is connected to the pre- hydrothermal solution inlet tube, and the heat exchange outlet section is set It is equipped with the floss hole of discharging liquid, the heat exchange inducer and the heat exchange outlet section run through the shell；

The heat exchanger tube is coiled pipe.

2. the vapor recycling system of Steam Turbine according to claim 1, which is characterized in that the power transportation section Including power shell and the turbine disk and line shaft that are set in the shell, the line shaft is fixed with the turbine disk to be connected It connects, the high-pressure exhaust is set to the shell, and the high-pressure exhaust is provided with Ji Qigai.

3. the vapor recycling system of Steam Turbine according to claim 2, which is characterized in that the Ji Qigai includes Lid portion, transition part and outlet, the transition part are set between the lid portion and the outlet, the transition part from The lid portion is gradually reduced to the diameter of the outlet.

4. the vapor recycling system of Steam Turbine according to claim 1, which is characterized in that the shell setting is cold Lime set inlet tube and condensate outlet pipe, the condensate liquid inlet tube are connected to the steam outlet pipe, and the condensate outlet pipe is set It is equipped with condensate discharge pipe.

5. the vapor recycling system of Steam Turbine according to claim 1, which is characterized in that also set in the shell It is equipped with the support plate for supporting the heat exchanger tube.

6. the vapor recycling system of Steam Turbine according to claim 1, which is characterized in that further include separator, The separator includes steam segment and reflux section, and the steam segment is provided with low-pressure steam outlet pipe, and the reflux section is provided with Phegma floss hole.

7. the vapor recycling system of Steam Turbine according to claim 6, which is characterized in that the reflux section it is interior Wall is provided with multiple spiral drainage troughs, and the spiral drainage trough extends along the circumferential downward spiral of the reflux section.

8. a kind of energy saver, which is characterized in that the energy saver includes such as claim 1-7 any one of them steam turbines The vapor recycling system of group.