CN214120834U - Condenser roots vacuum pump heat supply structure - Google Patents
Condenser roots vacuum pump heat supply structure Download PDFInfo
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- CN214120834U CN214120834U CN202022825271.4U CN202022825271U CN214120834U CN 214120834 U CN214120834 U CN 214120834U CN 202022825271 U CN202022825271 U CN 202022825271U CN 214120834 U CN214120834 U CN 214120834U
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Abstract
The utility model discloses a condenser roots vacuum pump heat supply structure relates to combined heat and power generation heat supply technical field. The utility model provides a condenser roots vacuum pump heat supply structure, includes condenser, roots vacuum pump and gas-water separator, its characterized in that: the throat part of the condenser is provided with a hole and is connected with a Roots vacuum pump through a steam extraction pipeline at the throat part of the condenser; an air pumping outlet of the condenser is connected with the Roots vacuum pump through a condenser vacuum pumping pipeline; the Roots vacuum pump is connected with the gas-water separator. The utility model discloses a thermoelectric unit takes the negative pressure steam in the condenser out from the roots vacuum pump of taking, and hot water after the steam extraction condensation is used for the heat supply, has effectively utilized unit self equipment and low-grade steam heat, does not influence the unit peak regulation, not only economy but also environmental protection.
Description
Technical Field
The utility model discloses a condenser roots vacuum pump heat supply structure relates to combined heat and power generation heat supply technical field.
Background
The cogeneration is a high-efficiency energy production mode for the combined production of heat energy and electric energy, can obviously improve the fuel utilization rate compared with the separate production of heat and electricity, is a globally accepted important measure for saving energy, improving the environment and enhancing the functions of urban infrastructures, has good economic and social benefits, and is highly valued by various countries in the world as an important technical means of circular economy. In northern cities of China, central heating is mostly adopted for winter heating. In the face of increasing severe energy shortage and environmental pollution caused by heating, the cogeneration provides a new energy-saving and emission-reducing way for heating in winter. The steam that the steam turbine was done work is utilized to the steam of thermal power plant to heat supply with the heat consumer, has improved the energy utilization ratio of thermal power plant on the one hand, and on the other hand has reduced the environmental pollution that boiler heating brought.
At present, the thermoelectric unit mainly adopts extraction steam for heat supply, but the flexibility peak regulation of the unit is not facilitated. When deep peak shaving is necessary, the thermoelectric power unit usually adopts bypass steam heating or electric heating water heating for heating. The high-grade energy is used for heating and is not economical and environment-friendly.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a condenser roots vacuum pump heat supply structure adopts the roots vacuum pump of thermoelectric unit from the area to take out the negative pressure steam in the condenser, and hot water after the steam extraction condensation is used for the heat supply, has effectively utilized unit self equipment and low-grade steam heat, does not influence the unit peak regulation, not only economy but also environmental protection.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a condenser roots vacuum pump heat supply structure, includes condenser, roots vacuum pump and gas-water separator, its characterized in that: the throat part of the condenser is provided with a hole and is connected with a Roots vacuum pump through a steam extraction pipeline at the throat part of the condenser; an air pumping outlet of the condenser is connected with the Roots vacuum pump through a condenser vacuum pumping pipeline; the Roots vacuum pump is connected with the gas-water separator.
Furthermore, the steam extraction pipeline at the throat part of the condenser and the vacuumizing pipeline of the condenser are connected in parallel and then are connected into the Roots vacuum pump together.
Furthermore, the steam extraction pipeline at the throat part of the condenser and the vacuumizing pipeline of the condenser are respectively connected with the Roots vacuum pump, and then are connected in parallel and then are connected into the gas-water separator together.
Furthermore, the outlet of the Roots vacuum pump is connected with a cooling water pipeline and a condensed water pipeline, and the Roots vacuum pump is connected with the gas-water separator through the condensed water pipeline.
Furthermore, the gas-water separator is respectively connected with the hot water supply pipeline and the air exhaust pipeline.
The utility model has the advantages of it is following:
(1) the structure is simple, the thermoelectric unit is fully utilized, and the roots vacuum pump is arranged, so that large-scale equipment is not required to be additionally arranged, and only a connecting pipeline and an air-water separator are required to be additionally arranged;
(2) the utility model increases the heat supply capacity of the thermoelectric unit, does not influence the normal operation and deep peak shaving operation of the thermoelectric unit, and meets the requirement of the operation safety of the thermoelectric unit;
(3) the exhaust steam of the low-grade condenser is effectively utilized and is further used for heat supply after being pressurized by the Roots vacuum pump, so that the method is economical and environment-friendly.
Drawings
Fig. 1 is a schematic diagram of a heat supply structure of a roots vacuum pump of a condenser according to an embodiment, and the direction of an arrow indicates the flow direction.
Fig. 2 is a schematic diagram of a heat supply structure of a roots vacuum pump of a condenser according to a second embodiment, and the direction of an arrow indicates the flow direction.
Wherein: the condenser comprises a condenser 1, a condenser throat steam extraction pipeline 1.1, a condenser vacuumizing pipeline 1.2, a valve 1.3, a Roots vacuum pump 2, a cooling water pipeline 2.1, a condensation water pipeline 2.2, a gas-water separator 3, a hot water supply pipeline 3.1 and an air exhaust pipeline 3.2.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The first embodiment is as shown in fig. 1, a condenser roots vacuum pump heat supply structure, it includes condenser 1, roots vacuum pump 2 and gas-water separator 3, its characterized in that: the throat part of the condenser 1 is provided with a hole and is connected with the Roots vacuum pump 2 through a steam extraction pipeline 1.1 at the throat part of the condenser; an air pumping outlet of the condenser 1 is connected with the Roots vacuum pump 2 through a condenser vacuum pumping pipeline 1.2; the Roots vacuum pump 2 is connected with the gas-water separator 3. And the steam extraction pipeline 1.1 at the throat part of the condenser and the vacuumizing pipeline 1.2 of the condenser are connected in parallel and then are connected into the Roots vacuum pump 2 together.
The specific heat supply process is as follows:
when the thermoelectric unit normally operates, a valve 1.3 on a steam extraction pipeline 1.1 at the throat part of the condenser is closed, and an air extraction outlet of the condenser 1 is connected with a Roots vacuum pump 2 through a condenser vacuum extraction pipeline 1.2. An inlet of the Roots vacuum pump 2 is used for extracting negative pressure steam containing air in the condenser and pressurizing and heating the steam; the outlet of the Roots vacuum pump 2 is connected with a cooling water pipeline 2.1 and a condensed water pipeline 2.2. The cooling water pipeline 2.1 sends hot well water or chemical make-up water of the condenser 1 to an outlet of the Roots vacuum pump 2 for cooling the pressurized and heated steam containing air to condense the steam therein, and the condensed gas-water mixture is sent to the gas-water separator 3 through the condensing water pipeline 2.2. The air-water separator 3 separates air and condensed water, wherein the air is discharged into the atmosphere through an air discharge pipeline 3.2, and the residual hot water is sent into a heat supply pipe network through a hot water supply pipeline 3.1, so that the purpose of heat supply is achieved.
In order to further increase the heat supply capacity of the thermoelectric unit, a valve 1.3 on a steam extraction pipeline 1.1 at the throat part of the condenser is opened and closed, and a hole is formed in the throat part of the condenser 1 and is connected with a Roots vacuum pump 2 through the steam extraction pipeline 1.1 at the throat part of the condenser. The inlet of the Roots vacuum pump 2 is used for extracting low-pressure steam at the throat part of the condenser and pressurizing and heating the steam; the outlet of the Roots vacuum pump 2 is connected with a cooling water pipeline 2.1 and a condensed water pipeline 2.2. The cooling water pipeline 2.1 sends hot well water or chemical make-up water of the condenser 1 to an outlet of the Roots vacuum pump 2 for cooling, pressurizing and heating the steam, condensing the steam in the steam, and sending the condensed steam to the gas-water separator 3 through the condensing water pipeline 2.2. The gas-water separator 3 separates a small amount of air and a large amount of condensed water which may be contained, wherein the air is discharged into the atmosphere through an air discharge pipeline 3.2, and the residual hot water is sent into a heat supply pipe network through a hot water supply pipeline 3.1, so that the purpose of heat supply is achieved.
According to different steam exhaust parameters of a steam turbine of the thermoelectric unit, the temperature of the hot water for heat supply is not less than 70 ℃.
The vacuum pump is equipment for maintaining negative pressure steam exhaust of a condenser of a thermal power plant and is used for pumping out uncondensed steam mixed with air in the condenser. The Roots vacuum pump can compress the vapor into normal pressure, and the vapor can be condensed into hot water with the temperature not less than 70 ℃ for heat supply after further water spraying and cooling. The heat supply structure can effectively utilize thermodynamic cycle waste heat, and is environment-friendly and energy-saving.
In the second embodiment, as shown in fig. 2, compared with the first embodiment 1, the second embodiment is characterized in that the steam extraction pipe 1.1 at the throat part of the condenser and the vacuum extraction pipe 1.2 of the condenser are respectively connected with the roots vacuum pump 2, and then are connected in parallel and then are connected into the gas-water separator 3 together, so that the heat supply capacity of the thermoelectric unit is further increased.
The foregoing shows and describes the general principles and principal structural features of the invention. The present invention is not limited by the above-mentioned examples, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and improvements fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (5)
1. The utility model provides a condenser roots vacuum pump heat supply structure, includes condenser (1), roots vacuum pump (2) and gas-water separator (3), its characterized in that: the throat part of the condenser (1) is provided with a hole and is connected with a Roots vacuum pump (2) through a steam extraction pipeline (1.1) at the throat part of the condenser; an air pumping outlet of the condenser (1) is connected with the Roots vacuum pump (2) through a condenser vacuum pumping pipeline (1.2); the Roots vacuum pump (2) is connected with the gas-water separator (3).
2. The heat supply structure of the condenser Roots vacuum pump as claimed in claim 1, wherein: and the steam extraction pipeline (1.1) at the throat part of the condenser and the vacuumizing pipeline (1.2) of the condenser are connected in parallel and then are connected into the Roots vacuum pump (2) together.
3. The heat supply structure of the condenser Roots vacuum pump as claimed in claim 1, wherein: the steam extraction pipeline (1.1) at the throat part of the condenser and the vacuum extraction pipeline (1.2) of the condenser are respectively connected with the Roots vacuum pump (2), and then are connected in parallel and then are connected into the gas-water separator (3).
4. The heat supply structure of the condenser Roots vacuum pump as claimed in claim 2 or 3, wherein: the outlet of the Roots vacuum pump (2) is connected with a cooling water pipeline (2.1) and a condensed water pipeline (2.2), and the Roots vacuum pump (2) is connected with the gas-water separator (3) through the condensed water pipeline (2.2).
5. The heat supply structure of the condenser Roots vacuum pump as claimed in claim 4, wherein: the gas-water separator (3) is respectively connected with the hot water supply pipeline (3.1) and the air exhaust pipeline (3.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022825271.4U CN214120834U (en) | 2020-11-27 | 2020-11-27 | Condenser roots vacuum pump heat supply structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022825271.4U CN214120834U (en) | 2020-11-27 | 2020-11-27 | Condenser roots vacuum pump heat supply structure |
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| Publication Number | Publication Date |
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| CN214120834U true CN214120834U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022825271.4U Active CN214120834U (en) | 2020-11-27 | 2020-11-27 | Condenser roots vacuum pump heat supply structure |
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| CN (1) | CN214120834U (en) |
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- 2020-11-27 CN CN202022825271.4U patent/CN214120834U/en active Active
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