Steam recovery device for deaerator

Abstract

The steam recovery device for the deaerator comprises the storage tank and the thermal insulation cavity, the thermal insulation cavity connected with the storage tank can be used for supporting the bottom of the storage tank, and external airflow can be prevented from being directly condensed on the outer surface of the bottom of the tank body through air in the thermal insulation cavity. Part of the air inlet pipe is arranged in the thermal insulation cavity, so that the thermal insulation effect on the air inlet pipe can be improved, and the annular cavity formed by the air inlet sleeve and the air inlet pipe is filled with thermal insulation cotton to prevent external air from flowing in and guarantee the thermal insulation effect at the front end connecting position; therefore, the steam recovery device for the deaerator solves the problem of condensation caused by temperature difference in the steam recovery process, and the connection reliability of the steam recovery device and the pipeline is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deaerator equipment, in particular to a steam recovery device for a deaerator. Background Art

[0002] The deaerator removes oxygen and other gases dissolved in the deaerator return water by heating the feed water to the saturation temperature under the deaerator working pressure, so as to prevent and reduce the corrosion of the boiler feed water pipe and other auxiliary equipment. Since the high-temperature heating of the deaerator feed water produces steam, if the steam is not effectively recovered in time, it will cause a huge waste of energy. However, the existing steam recovery device usually stores the steam in a fixed container in advance and transports the steam through other transmission pipelines. However, during the storage and transportation of steam, due to the temperature difference between the steam itself and the container or pipeline, condensation will be generated on the container or pipeline and condensed water will be formed, which will affect the pipeline connection or the component itself. Utility Model Content

[0003] In view of this, the technical problem to be solved by the utility model is: how to provide a steam recovery device for a deaerator with a temperature insulation chamber and a temperature insulation layer arranged at the bottom and the port to reduce the generation of condensed water caused by temperature difference and ensure the connection reliability of the pipeline joints and the components themselves.

[0004] To achieve the above object, the utility model provides a steam recovery device for a deaerator, which comprises a storage tank and a temperature-insulating chamber, wherein the storage tank and the temperature-insulating chamber are connected;

[0005] The top of the temperature-insulating chamber is open, the bottom of the storage tank is connected to the top opening of the temperature-insulating chamber, the temperature-insulating chamber is truncated, an air intake sleeve and an air exhaust sleeve are arranged on the temperature-insulating chamber, and the air intake sleeve is located above the air exhaust sleeve;

[0006] The bottom of the storage tank is connected to an air intake pipe, the air intake pipe is partially accommodated in the temperature-insulating cavity and located in the air intake sleeve, and thermal insulation cotton is filled in the annular cavity between the air intake sleeve and the air intake pipe;

[0007] Air outlet pipes are respectively arranged on both sides of the upper part of the storage tank;

[0008] A backwash pipe is connected to the air intake pipe and arranged vertically to the air intake pipe.

[0009] Furthermore, one end of the air inlet pipe is connected to the middle of the storage tank, and the portion of the air inlet pipe located in the temperature insulation chamber is arranged in the form of an elbow.

[0010] Furthermore, the temperature-isolating chamber is fixedly arranged on the base, and the top of the temperature-isolating chamber is connected to the storage tank by welding.

[0011] Furthermore, the air outlet pipe is arranged perpendicularly to the axis of the storage tank.

[0012] Furthermore, a pressure relief pipe is arranged on the top of the storage tank, the pressure relief pipe is connected to the storage tank, and the pressure relief pipe is arranged along the vertical direction.

[0013] Compared with the related art, the utility model proposes a steam recovery device for a deaerator, which has the following beneficial effects: a thermal insulation chamber connected to the storage tank is provided to support the bottom of the storage tank, and the air in the thermal insulation chamber can prevent the external airflow from condensing directly on the outer surface of the bottom of the tank body, and part of the air intake pipe is provided in the thermal insulation chamber to improve the thermal insulation effect of the air intake pipe, and thermal insulation cotton is filled in the annular cavity formed by the air intake sleeve and the air intake pipe to prevent the inflow of external air and ensure the thermal insulation effect at the front connection, thereby the steam recovery device for the deaerator solves the condensation problem caused by temperature difference during the steam recovery process, and improves the connection reliability of the steam recovery device and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a steam recovery device for a deaerator in an embodiment of the utility model;

[0015] Figure 2 It is an internal schematic diagram of a steam recovery device for a deaerator in an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] See also Figure 1 As shown in FIG. 2 , the utility model provides a steam recovery device for a deaerator, which includes a storage tank 10 and a temperature-insulating chamber 20, and the storage tank 10 and the temperature-insulating chamber 20 are connected.

[0018] The thermal insulation chamber 20 is fixedly set on the base 30, and the top of the thermal insulation chamber 20 is opened. The bottom of the storage tank 10 is connected to the top opening of the thermal insulation chamber 20 and is connected by welding. The thermal insulation chamber 20 is truncated cone-shaped, and an air intake sleeve 21 and an exhaust sleeve 22 are set on the thermal insulation chamber 20. The air intake sleeve 21 is located above the exhaust sleeve 22, wherein the air intake sleeve 21 is used to provide a guide for the connection of the air intake pipe 11, and the exhaust sleeve 22 is set to discharge the gas in the thermal insulation chamber 20 to reduce its internal pressure, wherein the exhaust sleeve 22 is normally closed and sealed by a flange.

[0019] The bottom of the storage tank 10 is connected to the air intake pipe 11, which is partially contained in the thermal insulation chamber 20 and is located in the air intake sleeve 21. One end of the air intake pipe 11 is connected to the middle of the storage tank 10, and the portion of the air intake pipe 11 located in the thermal insulation chamber 20 is arranged in an elbow, thereby allowing part of the air intake pipe 11 to be arranged in the thermal insulation chamber 20 to achieve effective thermal insulation treatment.

[0020] The annular cavity between the air intake sleeve 21 and the air intake pipe 11 is filled with heat-insulating cotton 40. The annular cavity formed by the air intake sleeve 21 and the air intake pipe 11 is filled with heat-insulating cotton 40 to prevent the inflow of outside air and ensure the thermal insulation effect at the front connection. Thus, the steam recovery device for the deaerator solves the condensation problem caused by temperature difference during the steam recovery process.

[0021] Gas outlet pipes 12 are respectively arranged on both sides of the upper part of the storage tank 10 . The gas outlet pipes 12 are arranged perpendicularly to the axis of the storage tank 10 . The gas outlet pipes 12 transport and discharge the steam stored in the storage tank 10 to the outside.

[0022] A backwash pipe 13 is connected to the air inlet pipe 11 and arranged vertically with the air inlet pipe 11. The backwash pipe 13 can be used to reversely flush the cleaning liquid flow to clean the storage tank 10.

[0023] A pressure relief pipe 14 is provided on the top of the storage tank 10 . The pressure relief pipe 14 is connected to the storage tank 10 and is provided in a vertical direction. If the pressure inside the storage tank 10 is too high, the pressure inside the storage tank 10 can be reduced by opening the pressure relief pipe 14 .

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A steam recovery device for a deaerator, characterized in that: It includes a storage tank and a temperature-insulating cavity, wherein the storage tank and the temperature-insulating cavity are connected; The top of the temperature-insulating chamber is open, the bottom of the storage tank is connected to the top opening of the temperature-insulating chamber, the temperature-insulating chamber is truncated, an air intake sleeve and an air exhaust sleeve are arranged on the temperature-insulating chamber, and the air intake sleeve is located above the air exhaust sleeve; The bottom of the storage tank is connected to an air intake pipe, the air intake pipe is partially accommodated in the temperature-insulating cavity and located in the air intake sleeve, and thermal insulation cotton is filled in the annular cavity between the air intake sleeve and the air intake pipe; Air outlet pipes are respectively arranged on both sides of the upper part of the storage tank; A backwash pipe is connected to the air intake pipe and arranged vertically to the air intake pipe.

2. The steam recovery device for a deaerator according to claim 1, characterized in that: One end of the air inlet pipe is connected to the middle of the storage tank, and the portion of the air inlet pipe located in the temperature insulation chamber is arranged in the form of an elbow.

3. The steam recovery device for a deaerator according to claim 1, characterized in that: The temperature-insulating cavity is fixedly arranged on the base, and the top of the temperature-insulating cavity is connected to the storage tank by welding.

4. The steam recovery device for a deaerator according to claim 1, characterized in that: The air outlet pipe is arranged perpendicularly to the axis of the storage tank.

5. The steam recovery device for a deaerator according to claim 1, characterized in that: A pressure relief pipe is arranged on the top of the storage tank, the pressure relief pipe is connected with the storage tank, and the pressure relief pipe is arranged along the vertical direction.

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