CN214406228U - Heating system capable of recycling exhaust steam of boiler deaerator - Google Patents
Heating system capable of recycling exhaust steam of boiler deaerator Download PDFInfo
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- CN214406228U CN214406228U CN202120406218.2U CN202120406218U CN214406228U CN 214406228 U CN214406228 U CN 214406228U CN 202120406218 U CN202120406218 U CN 202120406218U CN 214406228 U CN214406228 U CN 214406228U
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- deaerator
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Abstract
The utility model relates to a heating system capable of recycling exhaust steam of a boiler deaerator, belonging to the technical field of heating systems; comprises pipe network steam, a deaerator, a heating heat exchanger, a bathing heat exchanger, a drain tank and a water pump; saturated steam of the pipe network steam supplies steam to the bathing heat exchanger and the heating heat exchanger through a steam supply pipeline, a heating steam supply pipeline and a bathing steam supply pipeline, a stop valve is arranged on the steam supply pipeline, the heating heat exchanger and a steam outlet pipeline of the bathing heat exchanger are respectively communicated with a drain box, a water outlet of the drain box is connected with a water pump, and the water pump is connected with an inlet of a deaerator; the method comprises the following steps that a tee joint is arranged on a deaerator head emptying pipe of a deaerator, a first connector is connected with the deaerator head emptying pipe of the deaerator, a second connector is connected with the emptying pipe, an isolation valve is arranged on the emptying pipe, a third connector is communicated with a steam supply pipeline through a recovery pipeline, and a stop valve is arranged on the recovery pipeline; the problem that the exhaust steam discharged by the existing deaerator cannot be utilized is solved.
Description
Technical Field
The utility model belongs to the technical field of heating system, concretely relates to heating system of recoverable boiler oxygen-eliminating device exhaust steam of recycling.
Background
At present, the existing high-pressure rotary film deaerator device is mainly used for deaerating 15 mu g/L boiler water to 7 mu g/L after the low-pressure rotary film deaerator deaerates. However, 0.5MPa of dead steam after the high-pressure rotary-film deaerator is deaerated is directly discharged into the atmosphere to be emptied, so that energy waste is caused, in-situ steam is easy to freeze due to emptying in winter, and the personal safety is threatened due to the fact that an ice hanger falls to hurt people or the ice surface slips.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides a heating system which can recycle the exhaust steam of the boiler deaerator; the problem that the exhaust steam discharged by the existing deaerator cannot be utilized is solved.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A heating system capable of recycling exhaust steam of a boiler deaerator comprises pipe network steam, the deaerator, a heating heat exchanger, a bathing heat exchanger, a drain tank and a water pump; saturated steam of the pipe network steam is supplied to the outside through a steam supply pipeline, a stop valve is arranged on the steam supply pipeline, the steam supply pipeline is respectively communicated with a heating steam supply pipeline and a bathing steam supply pipeline through a three-way joint, the heating steam supply pipeline is communicated with a heating heat exchanger, the bathing steam supply pipeline is communicated with a bathing heat exchanger, the heating heat exchanger and a steam outlet pipeline of the bathing heat exchanger are respectively communicated with a drain tank, a water outlet of the drain tank is connected with a water pump, and the water pump is connected with an inlet of a deaerator; set up three way connection through the pipeline on the deoxidization head evacuation pipe that is used for discharging the exhaust steam of oxygen-eliminating device, wherein three way connection's first interface with the deoxidization head evacuation pipeline of oxygen-eliminating device is connected, three way connection's second interface is connected with the evacuation pipeline, the evacuation pipeline is linked together with external atmosphere, is provided with the isolating valve on the evacuation pipeline, three way connection's third interface is linked together through recovery pipeline and above-mentioned steam supply pipeline, be provided with the trip valve on the recovery pipeline.
Furthermore, the pipe network steam is connected with a temperature and pressure reducing station of 0.5MPa through a pipeline, and the temperature and pressure reducing station of 0.5MPa is connected with a steam outlet of the boiler.
Furthermore, the deaerator is divided into an exhaust section, a membrane lifting unit, a space area water spraying section and a packing layer section from top to bottom according to the water flow direction.
Furthermore, a cut-off valve is arranged on a pipeline between the oxygen removing head emptying pipe and the three-way joint.
Furthermore, a stop valve is arranged on the bathing steam supply pipeline.
The utility model discloses produced beneficial effect for prior art does:
(1) the heating system provided by the utility model has simple technical improvement and low cost of the technical improvement material; the operation is convenient; realizes the replacement of heating heat sources in bathhouses and winter, separates 0.5MPa temperature and pressure reduction stations, and reduces the pipe network loss caused by the use of the 0.5MPa temperature and pressure reduction stations.
(2) The heating system provided by the utility model recovers steam and condensate, avoids waste caused by exhausting steam and serious phenomena of large on-site steam and freezing caused by exhausting steam in winter; the heating cost in bathrooms and winter is reduced; the heat source coal consumption for heating in bathrooms and winter is saved; the consumption of the deoxidized water is saved.
Drawings
The invention will be described in further detail with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the whole of the present invention;
wherein, 1 is pipe network steam, 2 is a heating heat exchanger, 3 is a bathing heat exchanger, 4 is a drain tank, 5 is a water pump, 6 is a deaerator, 7 is a steam supply pipeline, 8 is a bathing steam supply pipeline, 9 is a heating steam supply pipeline, 10 is a recovery pipeline, 11 is an emptying pipeline, 12 is a stop valve, and 13 is an isolation valve.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, the utility model provides a heating system of recoverable boiler oxygen-eliminating device exhaust steam of recycling, including pipe network steam 1, oxygen-eliminating device 6, heating heat exchanger 2, bathing heat exchanger 3, drain tank 4, water pump 5.
The heating source of the pipe network steam 1 is 3.8MPa superheated main steam generated by a boiler, and the superheated main steam passes through a temperature and pressure reducing station of 0.5MPa to 0.5MPa saturated steam.
Saturated steam of pipe network steam 1 supplies vapour through supplying vapour pipeline 7 outwards, it is provided with trip valve 12 on the vapour pipeline 7 to supply.
The steam supply pipeline 7 is respectively communicated with a heating steam supply pipeline 9 and a bathing steam supply pipeline 8 through a three-way joint, the heating steam supply pipeline 9 is used for introducing saturated steam transmitted by the pipe network steam 1 into the heating heat exchanger 2, and the bathing steam supply pipeline 8 is used for introducing saturated steam transmitted by the pipe network steam 1 into the bathing heat exchanger 3.
The steam outlet pipelines of the heating heat exchanger 2 and the bathing heat exchanger 3 are respectively communicated with a drain tank 4, and condensed water which exchanges heat in the heating heat exchanger 2 and the bathing heat exchanger 3 enters the drain tank 4. The delivery port of drain tank 4 is connected with water pump 5, and water pump 5 is connected with the import of oxygen-eliminating device 6, and water pump 5 is arranged in recycling in the hydrophobic second pump income oxygen-eliminating device 6 of hydrophobic tank 4 after the condensation.
The deaerator 6 is divided into an exhaust section, a membrane-forming group, a space area water spraying section and a packing layer section from top to bottom according to the water flow direction, main condensed water, make-up water and drain water with qualified water quality at each position enter a water chamber interval of the deaerator membrane-forming group, the drain water passes through water holes on a membrane-forming pipe, jet injection is carried out, a water membrane rotational flow is formed along the inner wall of the membrane-forming pipe, a rotating water membrane skirt is formed at the outlet of the pipe under the centrifugal action, heating steam rises from the lower part of the packing layer group, passes through a gas-liquid net and a grid, passes through the hollow part of the inner wall of the water membrane skirt, meets inlet water step by step, carries out heat and mass exchange, heats the inlet water to the temperature of saturated steam corresponding to the operation of the deaerator, oxygen and other non-condensable gases dissolved in the water escape from the water and are discharged into the atmosphere through a deaerator head emptying pipe at the upper part; the inlet water completes primary deoxygenation in the membrane removing device, and the secondary deoxygenation is completed in the packing layer.
A tee joint is arranged on a deaerating head emptying pipe of the deaerator 6 for discharging the exhaust steam through a pipeline. Wherein, a first interface of the three-way joint is connected with a deaerating head emptying pipe of the deaerator 6, and a cut-off valve 12 is arranged on a pipeline between the deaerating head emptying pipe and the three-way joint; a second interface of the three-way joint is connected with an evacuation pipeline 11, the evacuation pipeline 11 is communicated with the outside atmosphere, and an isolation valve 13 is arranged on the evacuation pipeline 11 and used for controlling the circulation and the cut-off of exhaust steam in the evacuation pipeline 11; the third interface of the three-way joint is communicated with the steam supply pipeline 7 through a recovery pipeline 10, and the recovery pipeline 10 is provided with a stop valve 12.
The bathing steam supply pipeline 8 is provided with a cut-off valve 12 for the circulation and cut-off of the steam in the bathing steam supply pipeline 8 and the bathing heat exchanger 3.
The utility model discloses a theory of operation does:
when the exhaust steam in the deaerator 6 is insufficient or the exhaust steam discharged by the deaerator 6 does not need to be recycled, the stop valve 12 on the recovery pipeline 10 is closed, the stop valve 12 between the deaerator emptying pipe and the three-way joint, the isolation valve 13, the stop valve 12 on the steam supply pipeline 7 and the stop valve 12 on the bathing steam supply pipeline 8 are opened, the exhaust steam discharged by the deaerator 6 is discharged into the atmosphere through the isolation valve 13, saturated steam in the pipe network steam 1 is respectively led into the heating heat exchanger 2 and the bathing heat exchanger 3 through the steam supply pipeline 7 and the heating steam supply pipeline 9 and the bathing steam supply pipeline 8, and circulating water in a water path circulation exchanges heat, so that the temperature of the circulating water is increased, and the circulating water is respectively used for heating and bathing. Saturated steam after heat exchange becomes hydrophobic through the condensation and gets into in drain trap 4 to go into in oxygen-eliminating device 6 through water pump 5, be arranged in the duty cycle in the oxygen-eliminating device.
When the exhaust steam discharged by the deaerator 6 is enough and saturated steam in the pipe network steam 1 is not needed, a stop valve 12 and an isolation valve 13 on a steam supply pipeline 7 of the pipe network steam 1 are closed, a stop valve 12 between a deaerator head emptying pipe and a three-way joint, a stop valve 12 on a recovery pipeline 10 and a stop valve 12 on a bathing steam supply pipeline 8 are opened, the pressure of the high-pressure rotary film deaerator is maintained at 0.49Mpa, the exhaust steam pressure is maintained, the exhaust steam discharged by the deaerator 6 is led into the heating heat exchanger 2 and the bathing heat exchanger 3 through the recovery pipeline 10, the bathing steam supply pipeline 8 and the heating steam supply pipeline 9, the circulating water in the water path circulation is subjected to heat exchange, the temperature of the circulating water is increased, and the circulating water is used for heating and bathing respectively. Saturated steam after heat exchange becomes hydrophobic through the condensation and gets into in drain trap 4 to pump into to oxygen-eliminating device 6 in through water pump 5 for the duty cycle in the oxygen-eliminating device 6.
When the amount of the exhaust steam discharged by the deaerator 6 is insufficient and needs to be used together with the saturated steam in the pipe network steam 1, closing the isolation valve 13, opening a stop valve 12 between the oxygen removing head emptying pipe and the three-way joint, a stop valve 12 on the steam supply pipeline 7, a stop valve 12 on the recovery pipeline 10 and a stop valve on the bathing steam supply pipeline 8, the pressure of the high-pressure rotary film deaerator is kept at 0.49Mpa, and the pressure of the exhaust steam is kept nearly, at the moment, saturated steam in the pipe network steam 1 is respectively led into the heating heat exchanger 2 and the bathing heat exchanger 3 through the steam supply pipeline 7, the heating steam supply pipeline 9 and the bathing steam supply pipeline 8, the exhaust steam discharged by the deaerator 6 is led into the heating heat exchanger 2 and the bathing heat exchanger 3 through a recovery pipeline 10, a bathing steam supply pipeline 8 and a heating steam supply pipeline 9, and circulating water in the waterway circulation is subjected to heat exchange, so that the temperature of the circulating water is increased, and the circulating water is respectively used for heating and bathing. Saturated steam after heat exchange becomes hydrophobic through the condensation and gets into in drain trap 4 to pump into to the oxygen-eliminating device through water pump 5 in, be arranged in the duty cycle in the oxygen-eliminating device 6.
Through above-mentioned system, can utilize the exhaust steam that the oxygen-eliminating device 6 discharged and original pipe network steam in coordination, not only can retrieve the exhaust steam of pressure oxygen-eliminating device completely, the advantage such as simple, the transformation expense is low of transformation in addition, does not influence the dissolved oxygen index of boiler feedwater simultaneously, and energy saving and consumption reduction effect benefit is obvious.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a heating system of recoverable boiler oxygen-eliminating device exhaust steam of recycling which characterized in that: comprises pipe network steam (1), a deaerator (6), a heating heat exchanger (2), a bathing heat exchanger (3), a drain tank (4) and a water pump (5);
saturated steam of the pipe network steam (1) is supplied to the outside through a steam supply pipeline (7), a stop valve (12) is arranged on the steam supply pipeline (7), the steam supply pipeline (7) is respectively communicated with a heating steam supply pipeline (9) and a bathing steam supply pipeline (8) through a three-way joint, the heating steam supply pipeline (9) is communicated with a heating heat exchanger (2), the bathing steam supply pipeline (8) is communicated with a bathing heat exchanger (3), the heating heat exchanger (2) and a steam outlet pipeline of the bathing heat exchanger (3) are respectively communicated with a drain tank (4), a water outlet of the drain tank (4) is connected with a water pump (5), and the water pump (5) is connected with an inlet of a deaerator (6);
set up three way connection through the pipeline on the deoxidization head evacuation pipe that is used for discharging the exhaust steam of oxygen-eliminating device (6), wherein three way connection's first interface with the deoxidization head evacuation pipe of oxygen-eliminating device (6) is connected, three way connection's second interface is connected with evacuation pipeline (11), evacuation pipeline (11) are linked together with external atmosphere, are provided with isolation valve (13) on evacuation pipeline (11), three way connection's third interface is linked together with above-mentioned steam supply pipeline (7) through recovery pipeline (10), be provided with trip valve (12) on recovery pipeline (10).
2. The heating system capable of recycling the exhaust steam of the deaerator of the boiler as claimed in claim 1, wherein: the pipe network steam (1) is connected with a 0.5MPa temperature and pressure reducing station through a pipeline, and the 0.5MPa temperature and pressure reducing station is connected with a steam outlet of the boiler.
3. The heating system capable of recycling the exhaust steam of the deaerator of the boiler as claimed in claim 1, wherein: the deaerator (6) is divided into an exhaust section, a membrane lifting unit, a space area water spraying section and a packing layer section from top to bottom according to the water flow direction.
4. The heating system capable of recycling the exhaust steam of the deaerator of the boiler as claimed in claim 1, wherein: and a cut-off valve (12) is arranged on a pipeline between the oxygen removing head emptying pipe and the three-way joint.
5. The heating system capable of recycling the exhaust steam of the deaerator of the boiler as claimed in claim 1, wherein: the bathing steam supply pipeline (8) is provided with a stop valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120406218.2U CN214406228U (en) | 2021-02-24 | 2021-02-24 | Heating system capable of recycling exhaust steam of boiler deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120406218.2U CN214406228U (en) | 2021-02-24 | 2021-02-24 | Heating system capable of recycling exhaust steam of boiler deaerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214406228U true CN214406228U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120406218.2U Active CN214406228U (en) | 2021-02-24 | 2021-02-24 | Heating system capable of recycling exhaust steam of boiler deaerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214406228U (en) |
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2021
- 2021-02-24 CN CN202120406218.2U patent/CN214406228U/en active Active
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