CN203036737U - Low-level energy grading hybrid heating system with air cooling unit - Google Patents
Low-level energy grading hybrid heating system with air cooling unit Download PDFInfo
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- CN203036737U CN203036737U CN 201220730932 CN201220730932U CN203036737U CN 203036737 U CN203036737 U CN 203036737U CN 201220730932 CN201220730932 CN 201220730932 CN 201220730932 U CN201220730932 U CN 201220730932U CN 203036737 U CN203036737 U CN 203036737U
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Abstract
The utility model relates to the technical field of thermodynamics, in particular to a low-level energy grading hybrid heating system with an air cooling unit. The low-level energy grading hybrid heating system with the air cooling unit comprises a high-temperature heat-source heater and a low-temperature heat-source heater. The high-temperature heat-source heater is connected with an intermediate-pressure cylinder, the intermediate-pressure cylinder is communicated with a low-pressure cylinder by a pipeline, the low-temperature heat-source heater is connected onto an exhaust steam pipeline between the low-pressure cylinder and an air cooling condenser, and the high-temperature heat-source heater and the low-temperature heat-source heater are serially connected with each other to heat up heat-supply network circulating water of a heat-supply network circulating water unit. The low-level energy grading hybrid heating system has the advantages that a part of exhaust steam of the low-pressure cylinder is fed into the low-temperature heat-source heater, return water of the heat-supply network circulating water is heated by the exhaust steam of the low-pressure cylinder at the low-temperature heat-source heater at first, low-level energy is recycled, then the return water is fed to the high-temperature heat-source heater to absorb high-level heat of intermediate-pressure exhaust steam, a low-level heat source of the exhaust steam of the low-pressure cylinder of the air cooling unit is combined with a high-level heat source of the intermediate-pressure exhaust steam, accordingly, loss of cold sources of the unit is reduced, and the low-level energy grading hybrid heating system is energy-saving and environment-friendly.
Description
Technical field
The utility model relates to the heating power technical field, relates in particular to the low potential energy stepped mixing heating system of a kind of Air-cooled Unit.
Background technology
The present heating system that generally adopts of present China resident: one is the hot-water boiler heat supply, 45 kilograms of standard coals of every confession about consumption of 1 lucky burnt heat; Two for the cogeneration of heat and power central heating, and the high potential of high steam is generating earlier, when steam parameter drops to certain value, be used further to heating.The heating parameter of present thermoelectricity co-generating heat supplying unit: be generally pressure 0.3-0.5MPa, temperature 235-340 ℃, the pure condensate unit changes the heating parameter of heat supply: be generally pressure 0.7-1.1MPa, temperature 340-360 ℃, the available energy of pressing steam calculates, every confession 1 lucky burnt heat approximately consumes 14-16 kilogram standard coal, the hot water temperature who confesses: in warmer area, be generally about 80 ℃, at severe cold area, be generally about 110 ℃, no matter be the heat supply unit, still pure condensate changes the unit of heat supply into, the heat source temperature of heating is higher more than 120200 ℃ than the hot water temperature who confesses, though compare coal consumption has had and has declined to a great extent with hot-water boiler, but big like this heat transfer temperature difference, still can cause the very big loss of steam available energy, so traditional heat supply process exists very big energy waste phenomenon, average 1 ㎏ steam has 270kJ to can be exchanged into the available energy of kinetic force (mechanical or electrical energy) and has passed to heat network system with the form of heat energy.So both make the available energy of steam be converted to kinetic force to greatest extent, reduce heat source temperature, and guarantee that the hot water parameter of confessing is qualified, be that the cogeneration of heat and power mode is constantly pursued and improved technical goal.
As shown in Figure 1, the operation principle of existing pure condensate unit is: boiler is heated into the feedwater of heat regenerative system the steam of high pressure-temperature, then enter high pressure cylinder (not shown), intermediate pressure cylinder 1 and low pressure (LP) cylinder 2 successively, the steam available energy is converted into mechanical or electrical energy, promote the high, medium and low voltage turbine rotor and rotate, drive generator for electricity generation.By after the steam turbine acting, the available energy of steam all transforms steam successively, and the residual steam heat is the form introducing air condenser 5 of exhaust steam with low pressure (LP) cylinder 2 steam discharges, and the low pressure (LP) cylinder steam discharge is condensed into condensate water, continues to be sent to boiler circulation heating.
Conventional cogeneration units or pure condensate unit change the hot vapour source that supplies of the unit of heat supply and all take from middle pressure vapour, by high temperature heat source heater 3, be heat supply network first battle heat exchanger endlessly for the heat supply network circulating backwater provides heat energy, heat supply network recirculated water is heated to about 80 ~ 120 ℃ supplies with hot user 4.Wherein the heat supply of middle pressure vapour is drawn gas and can all be passed to heat network system with the pattern of heat energy at the high potential that steam turbine is converted into available energy, therefore exists the waste of energy quality.
Therefore, at above deficiency, the utility model provides a kind of Air-cooled Unit of energy-conserving and environment-protective low potential energy stepped mixing heating system.
The utility model content
(1) technical problem that will solve
The purpose of this utility model is that the heat supply of pressure vapour is drawn gas and can all be passed to heat network system with the pattern of heat energy at the high potential that steam turbine is converted into available energy in solving, and exists the waste of energy quality, is unfavorable for the problem of energy-conserving and environment-protective.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of Air-cooled Unit to hang down potential energy stepped mixing heating system, the low potential energy stepped mixing heating system of this Air-cooled Unit comprises high temperature heat source heater and low-temperature heat source heater, described high temperature heat source heater connects intermediate pressure cylinder, described intermediate pressure cylinder is communicated with low pressure (LP) cylinder by pipeline, at the blow-off line connection low-temperature heat source heater of low pressure (LP) cylinder to air cooling tubes condenser, described high temperature heat source heater and the series connection of low-temperature heat source heater are heated the heat supply network recirculated water of heat supply network recirculated water unit.
Wherein, described low-temperature heat source heater is to be connected with the blow-off line of low pressure (LP) cylinder to air cooling tubes condenser by the steam discharge bypass duct.
Wherein, described steam discharge bypass duct is provided with first admission valve.
Wherein, to the blow-off line of air cooling tubes condenser, also be provided with second admission valve at described low pressure (LP) cylinder.
Wherein, described low-temperature heat source heater also is communicated with described air cooling tubes condenser by pipeline.
Wherein, described heat supply network recirculated water unit constitutes the loop for connecting hot user by pipeline.
Wherein, also be provided with pumps for hot water supply net on the loop of described heat supply network recirculated water unit.
(3) beneficial effect
Technique scheme of the present utility model has following advantage: by connecting the low-temperature heat source heater at low pressure (LP) cylinder to the blow-off line of air cooling tubes condenser, high temperature heat source heater and the series connection of low-temperature heat source heater are heated the water of heat supply network recirculated water unit, like this part low pressure (LP) cylinder steam discharge is incorporated into the low-temperature heat source heater, heat supply network recirculated water backwater is at first heated by the low pressure (LP) cylinder steam discharge at the low-temperature heat source heater, reclaim low-phase energy, and then deliver to the high temperature heat source heater absorb in the high-order heat of pressure vapour, the high-order thermal source of Air-cooled Unit low pressure (LP) cylinder steam discharge low level heat energy and middle pressure vapour is combined, reduced the waste of the high-quality energy of steam, and the cold source energy of unit and energy-conserving and environment-protective have very been reduced.
Description of drawings
Fig. 1 is the schematic diagram of conventional heating system;
Fig. 2 is the schematic diagram that the low potential energy of the utility model embodiment Air-cooled Unit mixes the high-quality heating system.
Among the figure: 1: intermediate pressure cylinder; 2: low pressure (LP) cylinder; 3: the high temperature heat source heater; 4: hot user; 5: air cooling tubes condenser; 6: the low-temperature heat source heater; 7: pumps for hot water supply net; 8: the first admission valves; 9: the second admission valves; 10: the admission pipeline.
The specific embodiment
Below in conjunction with drawings and Examples the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
In description of the present utility model, need to prove that unless clear and definite regulation and restriction are arranged in addition, term " connection ", " linking to each other ", " connection " should be done broad understanding, for example, can be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.
In addition, term " first ", " second ", " the 3rd " only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
As shown in Figure 2, the Air-cooled Unit that the utility model embodiment provides is hanged down potential energy stepped mixing heating system, the low potential energy stepped mixing heating system of described Air-cooled Unit comprises intermediate pressure cylinder 1, low pressure (LP) cylinder 2 and air cooling tubes condenser 5, described intermediate pressure cylinder 1 is connected with high temperature heat source heater 3, and described intermediate pressure cylinder 1 is communicated with low pressure (LP) cylinder 2 by pipeline, described low pressure (LP) cylinder 2 is connected with air cooling tubes condenser 5 by pipeline, be connected with low-temperature heat source heater 6 by admission pipeline 10 at low pressure (LP) cylinder 2 to the blow-off line of air cooling tubes condenser 5, described high temperature heat source heater 3 and 6 series connection of low-temperature heat source heater are heated the water of heat supply network recirculated water unit.Described heat supply network recirculated water unit constitutes the loop for connect hot user 4 by pipeline.
By being connected with low-temperature heat source heater 6 at low pressure (LP) cylinder 2 to the blow-off line of air cooling tubes condenser 5, high temperature heat source heater 3 and 6 series connection of low-temperature heat source heater are heated the water of heat supply network recirculated water unit.Like this part low pressure (LP) cylinder steam discharge is incorporated into low-temperature heat source heater 6, heat supply network recirculated water backwater is at first heated by the low pressure (LP) cylinder steam discharge at low-temperature heat source heater 6, reclaim low-phase energy, and then deliver to high temperature heat source heater 3 absorb in the high-order heat of pressure vapour, the available energy that can realize steam like this be converted to kinetic force to greatest extent and the hot water parameter that guaranteed to confess qualified.
Described low-temperature heat source heater 6 also is communicated with described air cooling tubes condenser 5 by pipeline, and low pressure (LP) cylinder steam discharge and heat supply network recirculated water are produced the hydrophobic air cooling tubes condenser 5 that is incorporated into that forms after the heat exchange, turns back to the unit heat regenerative system.
Also be provided with first admission valve 8 on the described admission pipeline 10, to the pipeline of air cooling tubes condenser 5, also be provided with second admission valve 9 at described low pressure (LP) cylinder 2.According to user's request, open 8 pairs of heat supply network recirculated water of first admission valve unit low level heat energy is provided like this.
Also be provided with pumps for hot water supply net 7 on the loop of described heat supply network recirculated water unit, the heat supply network recirculated water after will being heated by described pumps for hot water supply net 7 is constantly supplied with hot user 4 in a steady stream.
Set up bypass admission pipeline 10 at Air-cooled Unit low pressure (LP) cylinder 2 blow-off lines, part low pressure (LP) cylinder steam discharge is incorporated into low-temperature heat source heater 6, the water of heat supply network recirculated water unit is at first heated by the low pressure (LP) cylinder steam discharge at low-temperature heat source heater 6, reclaim low-phase energy, and then deliver to high temperature heat source heater 3 absorb in the high-order heat of pressure vapour, finally deliver to hot user 4.The low potential energy of Air-cooled Unit mixes the high-quality heating system Air-cooled Unit low pressure (LP) cylinder steam discharge low level heat energy and the high-order hot vapour source that supplies of middle pressure vapour is combined, and has realized high and low potential energy stepped mixing high-quality heating system.Arrange the direct heating system in routine, the high-quality heating system influences about 73% energy-conservation, reduces the cold source energy about 40% of Lowlevel thermal energy.
During use, heat demand according to the user, open the aperture of first admission valve 8, the low pressure (LP) cylinder steam discharge is incorporated into low-temperature heat source heater 6, the water of heat supply network recirculated water unit is at first heated by the low pressure (LP) cylinder steam discharge at low-temperature heat source heater 6, reclaims low-phase energy, and then delivers to the high-order heat of pressure vapour in 3 absorptions of high temperature heat source heater, finally deliver to hot user 4, realized high and low potential energy stepped mixing high-quality heating.
In sum, by connecting the low-temperature heat source heater at low pressure (LP) cylinder to the blow-off line of air cooling tubes condenser, high temperature heat source heater and the series connection of low-temperature heat source heater are heated the water of heat supply network recirculated water unit, like this part low pressure (LP) cylinder steam discharge is incorporated into the low-temperature heat source heater, heat supply network recirculated water backwater is at first heated by the low pressure (LP) cylinder steam discharge at the low-temperature heat source heater, reclaim low-phase energy, and then deliver to the high temperature heat source heater absorb in the high-order heat of pressure vapour, Air-cooled Unit low pressure (LP) cylinder steam discharge low level heat energy and the high-order hot vapour source that supplies of middle pressure vapour are combined, reduced the cold source energy of Lowlevel thermal energy, and energy-conserving and environment-protective very.
The above only is a kind of preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (7)
1. an Air-cooled Unit is hanged down potential energy stepped mixing heating system, it is characterized in that: comprise high temperature heat source heater (3) and low-temperature heat source heater (6), described high temperature heat source heater (3) connects intermediate pressure cylinder (1), described intermediate pressure cylinder (1) is communicated with low pressure (LP) cylinder (2) by pipeline, at the blow-off line connection low-temperature heat source heater (6) of low pressure (LP) cylinder (2) to air cooling tubes condenser (5), described high temperature heat source heater (3) and low-temperature heat source heater (6) series connection are heated the heat supply network recirculated water of heat supply network recirculated water unit.
2. Air-cooled Unit according to claim 1 is hanged down potential energy stepped mixing heating system, and it is characterized in that: described low-temperature heat source heater (6) is to be connected with the blow-off line of low pressure (LP) cylinder (2) to air cooling tubes condenser (5) by steam discharge bypass duct (10).
3. Air-cooled Unit according to claim 2 is hanged down potential energy stepped mixing heating system, and it is characterized in that: described steam discharge bypass duct (10) is provided with first admission valve (8).
4. the low potential energy stepped mixing heating system of Air-cooled Unit according to claim 1 is characterized in that: also be provided with second admission valve (9) at described low pressure (LP) cylinder (2) to the blow-off line of air cooling tubes condenser (5).
5. Air-cooled Unit according to claim 1 is hanged down potential energy stepped mixing heating system, and it is characterized in that: described low-temperature heat source heater (6) also is communicated with described air cooling tubes condenser (5) by pipeline.
6. Air-cooled Unit according to claim 1 is hanged down potential energy stepped mixing heating system, it is characterized in that: described heat supply network recirculated water unit constitutes the loop for connect hot user (4) by pipeline.
7. the low potential energy stepped mixing heating system of Air-cooled Unit according to claim 6 is characterized in that: also be provided with pumps for hot water supply net (7) on the loop of described heat supply network recirculated water unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220730932 CN203036737U (en) | 2012-12-26 | 2012-12-26 | Low-level energy grading hybrid heating system with air cooling unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220730932 CN203036737U (en) | 2012-12-26 | 2012-12-26 | Low-level energy grading hybrid heating system with air cooling unit |
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| CN203036737U true CN203036737U (en) | 2013-07-03 |
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| CN 201220730932 Expired - Fee Related CN203036737U (en) | 2012-12-26 | 2012-12-26 | Low-level energy grading hybrid heating system with air cooling unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017233A (en) * | 2012-12-26 | 2013-04-03 | 北京国电蓝天节能科技开发有限公司 | Low-level energy classified hybrid heating system for air cooling unit |
-
2012
- 2012-12-26 CN CN 201220730932 patent/CN203036737U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017233A (en) * | 2012-12-26 | 2013-04-03 | 北京国电蓝天节能科技开发有限公司 | Low-level energy classified hybrid heating system for air cooling unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201204 Address after: 16F, building 1, No. 16 yard, West Fourth Ring Road middle, Haidian District, Beijing 100089 Patentee after: GUODIAN LONGYUAN ENERGY SAVING TECHNOLOGY Co.,Ltd. Address before: 100081 Beijing city Haidian District Fuhai international port Daliushu Road Room 1802 Patentee before: BEIJING GUODIAN BLUE SKY ENERGY SAVING TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20211226 |