CN220852283U - High back pressure heating economizer system of low pressure jar - Google Patents
High back pressure heating economizer system of low pressure jar Download PDFInfo
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- CN220852283U CN220852283U CN202320737850.4U CN202320737850U CN220852283U CN 220852283 U CN220852283 U CN 220852283U CN 202320737850 U CN202320737850 U CN 202320737850U CN 220852283 U CN220852283 U CN 220852283U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 239000008400 supply water Substances 0.000 claims abstract description 11
- 238000004134 energy conservation Methods 0.000 claims 2
- 239000003245 coal Substances 0.000 abstract description 10
- 238000000605 extraction Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a low-pressure cylinder high-back pressure heating energy-saving system, which comprises: the low-pressure condenser unit is used for cooling the circulating water supply water and flowing the cooled circulating water supply water to the cooling tower; the high-pressure condenser unit is used for heating the water coming from the self-heating main pipe network and flowing the heated water coming from the self-heating main pipe network to the heat supply main pipe network; the first end and the second end of the low-pressure condenser unit are connected with circulating water supply equipment, the third end of the low-pressure condenser unit is connected with the third end of the high-pressure condenser unit, and the fourth end of the low-pressure condenser unit is connected with the fourth end of the high-pressure condenser unit; the first end and the second end of the high-pressure condenser unit are connected with circulating water backwater equipment, and the heat supply capacity is guaranteed while the cold source loss of part of the low-pressure cylinders is reduced through the part of the low-pressure cylinder high-back pressure heat supply energy-saving system, so that the power supply coal consumption is reduced, and energy is saved.
Description
Technical Field
The application relates to the technical field of heating of thermal power plants, in particular to a low-pressure cylinder high-back pressure heating energy-saving system.
Background
The heating forms of China are mainly divided into a local coal-fired boiler room heating form, a thermal power plant heating form, a clean energy heating form and the like, so that more and more new heating technologies are developed for reducing the serious environment pollution during heating, and the electric energy consumption is the main energy consumption of the new heating technologies.
The heat supply of the thermal power plant is an urban central heat supply mode for jointly producing heat energy and electric energy, and a power plant for carrying out combined heat and power production is called a thermal power plant. According to the pressure and temperature required by the heat user, the exhaust pressure of the steam turbine is properly increased, and the heat is supplied to the surrounding users of the power plant by utilizing the steam (called dead steam) doing work, so that the cold source loss of the steam turbine can be effectively utilized, and the comprehensive utilization efficiency of the thermoelectric power supply system is obviously improved.
In the winter heating period, the heating of the thermoelectric power plant generally adopts steam extraction heating and high back pressure operation heating. The air extraction and heating are performed through the steam inlet of the low-pressure cylinder of the steam turbine generator set with more than 300MW level and the extraction of part of hot steam is performed during heating to heat the outside; the high back pressure operation heating is realized by the high back pressure reconstruction of the low pressure cylinders, and all the low pressure cylinders are operated at the high back pressure in the heating period.
By adopting steam extraction heating, the heating potential is not fully excavated, the loss of a cold source is relatively large, and the consumption of power supply coal is increased; all the low-pressure cylinders are used for high back pressure operation, and the heating amount is large in the initial stage and the final stage of a heating season, so that energy is wasted, and the physical health of a user can be influenced due to the fact that the indoor temperature is too high.
Therefore, how to meet the heating requirement in winter, reduce the cold source loss and the power supply coal consumption is a technical problem to be solved at present.
Disclosure of utility model
The utility model provides a low-pressure cylinder high-back pressure heating energy-saving system, which is used for solving the technical problems that the prior art cannot meet the heating requirement in winter, can reduce cold source loss and power supply coal consumption, and comprises
The low-pressure condenser unit is used for cooling the circulating water supply water and flowing the cooled circulating water supply water to the cooling tower;
The high-pressure condenser unit is used for heating the water coming from the self-heating main pipe network and flowing the heated water coming from the self-heating main pipe network to the heat supply main pipe network;
The first end and the second end of the low-pressure condenser unit are connected with circulating water supply equipment, the third end of the low-pressure condenser unit is connected with the third end of the high-pressure condenser unit, and the fourth end of the low-pressure condenser unit is connected with the fourth end of the high-pressure condenser unit; the first end and the second end of the high-pressure condenser unit are connected with circulating water backwater equipment.
In some embodiments of the present application, the low pressure condenser unit includes a low pressure condenser, a first electric valve, a second electric valve, a fifth electric valve, a sixth electric valve, a seventh electric valve, and an eighth electric valve.
In some embodiments of the present application, further comprising:
The first end of the low-pressure condenser unit is the second end of the seventh electric valve, the second end of the low-pressure condenser unit is the second end of the eighth electric valve, the third end of the low-pressure condenser unit is the second end of the fifth electric valve, the fourth end of the low-pressure condenser unit is the second end of the sixth electric valve, the first end of the low-pressure condenser is connected with the first end of the seventh electric valve, the second end of the low-pressure condenser is connected with the first end of the eighth electric valve, the third end of the low-pressure condenser is connected with a joint point of the first end of the first electric valve and the first end of the fifth electric valve, the fourth end of the low-pressure condenser is connected with a joint point of the first end of the second electric valve and the first end of the sixth electric valve, and the second end of the first electric valve are commonly connected with the cooling tower.
In some embodiments of the present application, the high-pressure condenser unit includes a high-pressure condenser, a third electric valve, a fourth electric valve, a ninth electric valve, a tenth electric valve, an eleventh electric valve, and a twelfth electric valve.
In some embodiments of the present application, further comprising:
The first end of the high-pressure condenser unit is the second end of the twelfth electric valve, the second end of the high-pressure condenser unit is the second end of the eleventh electric valve, the third end of the high-pressure condenser unit is connected with the joint point of the second end of the fifth electric valve and the first end of the third electric valve, the fourth end of the low-pressure condenser unit is connected with the joint point of the second end of the sixth electric valve and the first end of the fourth electric valve, the first end of the high-pressure condenser is connected with the joint point of the first end of the twelfth electric valve and the first end of the tenth electric valve, the second end of the high-pressure condenser is connected with the joint point of the first end of the eleventh electric valve and the first end of the ninth electric valve, the third end of the high-pressure condenser is connected with the common joint of the first end of the third electric valve and the second end of the fifth electric valve, the fourth end of the high-pressure condenser is connected with the common joint of the first end of the fourth electric valve and the second end of the sixth electric valve, the second end of the third electric valve and the second end of the fourth electric valve are connected with a self-heating main pipe network together, the second end of the ninth electric valve and the second end of the tenth electric valve are connected with a heat supply main pipe network together, and the second end of the eleventh electric valve and the second end of the twelfth electric valve are connected with circulating water backwater equipment together.
By applying the technical scheme, the low-pressure condenser unit is used for cooling the circulating water supply water and flowing the cooled circulating water supply water to the cooling tower; the high-pressure condenser unit is used for heating the water coming from the self-heating main pipe network and flowing the heated water coming from the self-heating main pipe network to the heat supply main pipe network; the first end and the second end of the low-pressure condenser unit are connected with circulating water supply equipment, the third end of the low-pressure condenser unit is connected with the third end of the high-pressure condenser unit, and the fourth end of the low-pressure condenser unit is connected with the fourth end of the high-pressure condenser unit; the first end and the second end of the high-pressure condenser unit are connected with circulating water backwater equipment, and the heat supply capacity is guaranteed while the cold source loss of part of the low-pressure cylinders is reduced through the part of the low-pressure cylinder high-back pressure heat supply energy-saving system, so that the power supply coal consumption is reduced, and the energy is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic structural diagram of a low-pressure cylinder high-back pressure heating energy-saving system according to an embodiment of the utility model.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application provides a part of low-pressure cylinder high-back pressure heating energy-saving system with multiple low-pressure cylinders, which is shown in fig. 1 and comprises:
A low pressure condenser unit 100 for cooling the circulating water supply and flowing the cooled circulating water supply to the cooling tower;
The high-pressure condenser unit 200 is configured to heat the water coming from the self-heating main pipe network, and flow the heated water coming from the self-heating main pipe network to the heat-supplying main pipe network;
The first end and the second end of the low-pressure condenser unit 100 are both connected with a circulating water supply device, the third end of the low-pressure condenser unit 100 is connected with the third end of the high-pressure condenser unit 200, and the fourth end of the low-pressure condenser unit 200 is connected with the fourth end of the high-pressure condenser unit 200; the first end and the second end of the high-pressure condenser unit 200 are both connected with circulating water backwater equipment.
In this embodiment, the first end and the second end of the low-pressure condenser unit 100 are both connected with the circulating water supply device, the third end of the low-pressure condenser unit 100 is connected with the third end of the high-pressure condenser unit 200, and the fourth end of the low-pressure condenser unit 200 is connected with the fourth end of the high-pressure condenser unit 200; the first end and the second end of the high-pressure condenser unit 200 are both connected with the circulating water return device, the low-pressure condenser unit 100 can supply water for the circulating water for cooling, and the cooled circulating water is supplied to the cooling tower, so that the cold source loss of the low-pressure cylinder can be reduced, and the evaporation capacity of the circulating water is reduced. The high-pressure condenser unit 200 can heat the water coming from the self-heating main pipe network, and flow the heated water coming from the self-heating main pipe network to the heat supply main pipe network, so that the heating capacity is increased, and meanwhile, the power supply coal consumption is reduced.
In order to reduce the cold source loss of the low pressure cylinder, in some embodiments of the present application, the low pressure condenser unit 100 includes a low pressure condenser, a first electrically operated valve, a second electrically operated valve, a fifth electrically operated valve, a sixth electrically operated valve, a seventh electrically operated valve, and an eighth electrically operated valve.
In this embodiment, the low pressure condenser unit 100 includes a low pressure condenser, a first electrically operated valve, a second electrically operated valve, a fifth electrically operated valve, a sixth electrically operated valve, a seventh electrically operated valve, and an eighth electrically operated valve.
In order to reduce the cold source loss of the low pressure cylinder, in some embodiments of the present application, the method further includes:
The first end of the low-pressure condenser unit 100 is the second end of the seventh electric valve, the second end of the low-pressure condenser unit 100 is the second end of the eighth electric valve, the third end of the low-pressure condenser unit 100 is the second end of the fifth electric valve, the fourth end of the low-pressure condenser unit 100 is the second end of the sixth electric valve, the first end of the low-pressure condenser is connected with the first end of the seventh electric valve, the second end of the low-pressure condenser is connected with the first end of the eighth electric valve, the third end of the low-pressure condenser is connected with a joint point between the first end of the first electric valve and the first end of the fifth electric valve, the fourth end of the low-pressure condenser is connected with a joint point between the first end of the second electric valve and the first end of the sixth electric valve, and the second end of the first electric valve are commonly connected with the cooling tower.
In this embodiment, the first end of the low-pressure condenser is connected with the first end of the seventh electric valve, the second end of the low-pressure condenser is connected with the first end of the eighth electric valve, the first end of the first electric valve and the first end of the fifth electric valve are connected with the third end of the low-pressure condenser in a joint way, the first end of the second electric valve and the first end of the sixth electric valve are connected with the fourth end of the low-pressure condenser in a joint way, and the second end of the first electric valve and the second end of the second electric valve are connected with the cooling tower in a joint way. The circulating water supply enters the low-pressure condenser, and the cooled circulating water supply flows to the cooling tower, so that the cold source loss of part of the low-pressure cylinders is reduced, the evaporation capacity of the circulating water is reduced, and the power supply coal consumption is reduced.
In order to increase the heating capacity and reduce the consumption of electricity and coal, in some embodiments of the present application, the high-pressure condenser unit 200 includes a high-pressure condenser, a third electrically operated valve, a fourth electrically operated valve, a ninth electrically operated valve, a tenth electrically operated valve, an eleventh electrically operated valve, and a twelfth electrically operated valve.
In this embodiment, the high-pressure condenser unit 200 includes a high-pressure condenser, a third electrically operated valve, a fourth electrically operated valve, a ninth electrically operated valve, a tenth electrically operated valve, an eleventh electrically operated valve, and a twelfth electrically operated valve.
In order to increase the temperature of the incoming water of the self-heating main pipe network of the high-pressure condenser, in some embodiments of the present application, the method further comprises:
The first end of the high-pressure condenser unit 200 is the second end of the twelfth electric valve, the second end of the high-pressure condenser unit 200 is the second end of the eleventh electric valve, the third end of the high-pressure condenser unit 200 is connected with the common point of the second end of the fifth electric valve and the first end of the third electric valve, the fourth end of the low-pressure condenser unit 200 is connected with the common point of the second end of the sixth electric valve and the first end of the fourth electric valve, the first end of the high-pressure condenser is connected with the common point of the first end of the twelfth electric valve and the first end of the tenth electric valve, the second end of the high-pressure condenser is connected with the common point of the first end of the eleventh electric valve and the first end of the ninth electric valve, the third end of the high-pressure condenser is connected with the common point of the first end of the third electric valve and the second end of the fifth electric valve, the fourth end of the high-pressure condenser is connected with the fourth end of the fourth electric valve and the fourth end of the fourth electric valve is connected with the fourth end of the fourth electric valve, and the fourth end of the fourth electric valve is connected with the common point of the fourth electric valve and the fourth electric valve, and the fourth electric valve is connected with the common point of the fourth electric valve and the fourth electric valve.
In this embodiment, the first end of the high-pressure condenser is connected to a common connection point of the first end of the twelfth electric valve and the first end of the tenth electric valve, the second end of the high-pressure condenser is connected to a common connection point of the first end of the eleventh electric valve and the first end of the ninth electric valve, the third end of the high-pressure condenser is connected to a common connection point of the first end of the third electric valve and the second end of the fifth electric valve, the fourth end of the high-pressure condenser is connected to a common connection point of the first end of the fourth electric valve and the second end of the sixth electric valve, the second end of the third electric valve and the second end of the fourth electric valve are connected to a self-heating main pipe network together, the second end of the ninth electric valve and the second end of the tenth electric valve are connected to a heat-supplying main pipe network together, and the second end of the eleventh electric valve and the second end of the twelfth electric valve are connected to a circulating water return device together. The water coming from the main pipe network is discharged through the high-pressure condenser and is heated continuously, and the heated water coming from the main pipe network goes to the main pipe network for heating, so that the heating capacity in the heating period is ensured.
By applying the technical scheme, the low-pressure condenser unit is used for cooling the circulating water supply water and flowing the cooled circulating water supply water to the cooling tower; the high-pressure condenser unit is used for heating the water coming from the self-heating main pipe network and flowing the heated water coming from the self-heating main pipe network to the heat supply main pipe network; the first end and the second end of the low-pressure condenser unit are connected with circulating water supply equipment, the third end of the low-pressure condenser unit is connected with the third end of the high-pressure condenser unit, and the fourth end of the low-pressure condenser unit is connected with the fourth end of the high-pressure condenser unit; the first end and the second end of the high-pressure condenser unit are connected with circulating water backwater equipment, and the heat supply capacity is guaranteed while the cold source loss of part of the low-pressure cylinders is reduced through the part of the low-pressure cylinder high-back pressure heat supply energy-saving system, so that the power supply coal consumption is reduced, and the energy is saved.
In order to further explain the technical idea of the utility model, the technical scheme of the utility model is described with specific application scenarios.
In the heating period, circulating water supply enters the low-pressure condenser through the seventh electric valve and the eighth electric valve, the circulating water supply is heated through the exhaust steam of the low-pressure condenser, the fifth electric valve and the sixth electric valve are closed, the first electric valve and the second electric valve are opened, and the cooled circulating water supply flows to the cooling tower. The self-heating main pipe network water enters the high-pressure condenser through the third electric valve and the fourth electric valve, the self-heating main pipe network water continues to heat through the exhaust steam in the high-pressure condenser, the eleventh electric valve and the twelfth electric valve are closed, the ninth electric valve and the tenth electric valve are opened, and the self-heating main pipe network water after heating flows to the heating main pipe network to heat a user.
In the initial stage and the final stage of heating, the low-pressure cylinders are all operated with high back pressure, the heating amount is large, energy sources are wasted, and the health of users can be influenced due to the fact that the indoor temperature is too high. By applying the technical scheme, not only is the cold source loss of part of the low-pressure cylinder reduced and the evaporation capacity of circulating water reduced, but also the heating capacity is ensured, the power supply coal consumption is reduced, and the energy is saved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (5)
1. A low pressure cylinder high back pressure heating energy saving system, the system comprising:
The low-pressure condenser unit is used for cooling the circulating water supply water and flowing the cooled circulating water supply water to the cooling tower;
The high-pressure condenser unit is used for heating the water coming from the self-heating main pipe network and flowing the heated water coming from the self-heating main pipe network to the heat supply main pipe network;
The first end and the second end of the low-pressure condenser unit are connected with circulating water supply equipment, the third end of the low-pressure condenser unit is connected with the third end of the high-pressure condenser unit, and the fourth end of the low-pressure condenser unit is connected with the fourth end of the high-pressure condenser unit; the first end and the second end of the high-pressure condenser unit are connected with circulating water backwater equipment.
2. The heating energy saving system of claim 1, wherein the low pressure condenser unit comprises a low pressure condenser, a first electrically operated valve, a second electrically operated valve, a fifth electrically operated valve, a sixth electrically operated valve, a seventh electrically operated valve, and an eighth electrically operated valve.
3. The heating energy conservation system of claim 2, further comprising:
The first end of the low-pressure condenser unit is the second end of the seventh electric valve, the second end of the low-pressure condenser unit is the second end of the eighth electric valve, the third end of the low-pressure condenser unit is the second end of the fifth electric valve, the fourth end of the low-pressure condenser unit is the second end of the sixth electric valve, the first end of the low-pressure condenser is connected with the first end of the seventh electric valve, the second end of the low-pressure condenser is connected with the first end of the eighth electric valve, the third end of the low-pressure condenser is connected with a joint point of the first end of the first electric valve and the first end of the fifth electric valve, the fourth end of the low-pressure condenser is connected with a joint point of the first end of the second electric valve and the first end of the sixth electric valve, and the second end of the first electric valve are commonly connected with the cooling tower.
4. A heating and energy saving system according to claim 3, wherein the high pressure condenser unit includes a high pressure condenser, a third electrically operated valve, a fourth electrically operated valve, a ninth electrically operated valve, a tenth electrically operated valve, an eleventh electrically operated valve, and a twelfth electrically operated valve.
5. A heating energy conservation system as recited in claim 4, further comprising:
The first end of the high-pressure condenser unit is the second end of the twelfth electric valve, the second end of the high-pressure condenser unit is the second end of the eleventh electric valve, the third end of the high-pressure condenser unit is connected with the joint point of the second end of the fifth electric valve and the first end of the third electric valve, the fourth end of the low-pressure condenser unit is connected with the joint point of the second end of the sixth electric valve and the first end of the fourth electric valve, the first end of the high-pressure condenser is connected with the joint point of the first end of the twelfth electric valve and the first end of the tenth electric valve, the second end of the high-pressure condenser is connected with the joint point of the first end of the eleventh electric valve and the first end of the ninth electric valve, the third end of the high-pressure condenser is connected with the common joint of the first end of the third electric valve and the second end of the fifth electric valve, the fourth end of the high-pressure condenser is connected with the common joint of the first end of the fourth electric valve and the second end of the sixth electric valve, the second end of the third electric valve and the second end of the fourth electric valve are connected with a self-heating main pipe network together, the second end of the ninth electric valve and the second end of the tenth electric valve are connected with a heat supply main pipe network together, and the second end of the eleventh electric valve and the second end of the twelfth electric valve are connected with circulating water backwater equipment together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320737850.4U CN220852283U (en) | 2023-03-31 | 2023-03-31 | High back pressure heating economizer system of low pressure jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320737850.4U CN220852283U (en) | 2023-03-31 | 2023-03-31 | High back pressure heating economizer system of low pressure jar |
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| CN220852283U true CN220852283U (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320737850.4U Active CN220852283U (en) | 2023-03-31 | 2023-03-31 | High back pressure heating economizer system of low pressure jar |
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| Country | Link |
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| CN (1) | CN220852283U (en) |
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- 2023-03-31 CN CN202320737850.4U patent/CN220852283U/en active Active
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