Automatic oxygen discharging system for built-in deaerator

Abstract

The utility model discloses an automatic oxygen discharge system for a built-in deaerator, which comprises a deaerator, an operation port and an oxygen content detector, an output port of the deaerator is communicated with the operation port through a water supply pipeline in a butt joint manner, the oxygen content detector is arranged on the water supply pipeline, and the oxygen content detector is connected with the operation port through a water supply pipeline. And at least one electric control exhaust steam valve on the deaerator is electrically connected with the oxygen content detector. According to the utility model, the opening degree of the steam exhaust valve is controlled according to the measured value of the oxygen content of the outlet water of the built-in deaerator, so that the purposes of automatically exhausting oxygen, saving energy and reducing consumption are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of deaerator oxygen exhaust, in particular to an automatic oxygen exhaust system for a built-in deaerator. Background Art

[0002] Based on energy conservation, focusing on industrial and power energy conservation, relying on scientific and technological progress, and improving energy efficiency as the strategic goal, we focus on energy conservation in traditional built-in deaerators or bubbling deaerators. Traditional built-in deaerators or bubbling deaerators have an oxygen outlet at the top of the deaerator, which is generally equipped with a manual on / off valve. The oxygen discharge of the deaerator is uncontrolled, and as the oxygen is discharged, a large amount of water vapor is released, resulting in a large amount of heat loss. Utility Model Content

[0003] The utility model aims to provide an automatic oxygen exhaust system for a built-in deaerator, which controls the opening of the exhaust valve by measuring the oxygen content of the water outlet from the built-in deaerator, thereby achieving the purpose of automatic oxygen exhaust and energy saving and consumption reduction.

[0004] The technical solution adopted by the utility model to solve its technical problems is to propose an automatic oxygen exhaust system for a built-in deaerator, including a deaerator, an operating port, and an oxygen content detector. The output port of the deaerator is connected to the operating port through a water supply pipe. The water supply pipe is provided with an oxygen content detector. There is at least one electrically controlled steam exhaust valve on the deaerator that is electrically connected to the oxygen content detector.

[0005] Furthermore, it also includes a water inlet port, the water input port of the deaerator is connected to the water inlet port through a water pipeline, and the water pipeline is provided with a water inlet valve group.

[0006] Furthermore, the water supply pipeline is provided with two parallel control pipelines at the water inlet valve group, and the water inlet valve group includes an electrically controlled stop valve and a mechanical valve, one of the control pipelines is equipped with the electrically controlled stop valve, and the other control pipeline is equipped with the mechanical valve; a water inlet detector is provided in the deaerator, and the water inlet detector is electrically connected to the electrically controlled stop valve.

[0007] Furthermore, an exhaust valve and a first safety valve are provided at the water input port of the deaerator.

[0008] Furthermore, the deaerator is provided with a sampling port, and the sampling port is arranged close to the output port.

[0009] Furthermore, it also includes a steam inlet port, the steam input port of the deaerator is connected to the steam inlet port through a steam transmission pipeline, and a steam inlet valve group is provided on the steam transmission pipeline.

[0010] Furthermore, the steam transmission pipeline is provided with two parallel control pipes at the steam inlet valve group, and the steam inlet valve group includes an electrically controlled stop valve and a mechanical valve, one of the control pipes is equipped with the electrically controlled stop valve, and the other control pipe is equipped with the mechanical valve; a steam inlet detector is provided in the deaerator, and the steam inlet detector is electrically connected to the electrically controlled stop valve.

[0011] Furthermore, the steam input port of the deaerator is provided with the electronically controlled steam exhaust valve and the second safety valve.

[0012] Furthermore, the deaerator is provided with a plurality of the electrically controlled steam exhaust valves; the deaerator is also provided with a first spare port and a second spare port, the first spare port is provided above the deaerator, and the second spare port is provided below the deaerator.

[0013] It also includes a controller for the electronically controlled exhaust valve, which is used to adjust the opening degree and opening amount of the electronically controlled exhaust valve according to the detection result of the oxygen content detector.

[0014] Furthermore, it also includes a sewage discharge port, the sewage removal port of the deaerator is connected to the sewage discharge port through a sewage discharge pipe, and a sewage discharge valve is provided on the sewage discharge pipe.

[0015] The beneficial effects of the utility model are:

[0016] The utility model proposes an automatic oxygen exhaust system for a built-in deaerator. An electric regulating valve group is provided at the oxygen exhaust port of a traditional built-in deaerator or a bubbling deaerator. At the same time, an oxygen content online detector is provided on the outlet pipe of the deaerator water tank. The opening of the electric regulating valve at the exhaust port is controlled according to the indication of the oxygen content online detector.

[0017] The present application can timely adjust the steam outlet volume of the exhaust port according to the operating parameters of the deaerator, and the external exhaust steam is changed from the traditional uncontrollable state to an adjustable state. Under the premise that the water inlet and heating steam of the deaerator body are adjustable, the adjustment of all inlet and outlet water and steam is realized, thereby enhancing the control ability of the thermal balance in the deaerator and reducing the waste of heat energy and water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all. Those skilled in the art can derive other drawings from these drawings without inventive effort.

[0019] Figure 1This is a structural diagram of an automatic oxygen exhaust system for a built-in deaerator according to an embodiment of the present utility model.

[0020] In the figure: 1. Deaerator; 2. Water inlet port; 3. Steam inlet port; 4. Sewage port; 5. Operation port; 6. Oxygen detector; 11. Exhaust valve; 12. Electric exhaust valve; 13. Sampling port; 14. First spare port; 15. Second spare port; 21. Water inlet valve group; 22. Water inlet detector; 31. Steam inlet valve group; 32. Steam inlet detector; 41. Sewage valve; 111. First safety valve; 121. Second safety valve. DETAILED DESCRIPTION

[0021] To more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following describes specific embodiments of the present invention with reference to the accompanying drawings. Obviously, the drawings described below are merely examples of the present invention. A person skilled in the art can, without inventive effort, derive other drawings and other embodiments from these drawings. Furthermore, design orientations only represent relative positional relationships between components, not absolute positional relationships.

[0022] The present invention provides an automatic oxygen exhaust system for a built-in deaerator. Figure 1 It mainly includes a deaerator 1, an operating port 5, and an oxygen content detector 6. The output port of the deaerator 1 is connected to the operating port 5 through a water supply pipe. The oxygen content detector 6 is provided on the water supply pipe. There is at least one electronically controlled steam exhaust valve 12 on the deaerator 1 that is electrically connected to the oxygen content detector 6.

[0023] In the present application, a plurality of electrically controlled exhaust valves 12 may be provided on the tank body of the deaerator 1 , all of which are regulated based on the detection results of the oxygen content detector 6 , and the regulation parameters include the opening degree and the opening quantity of each electrically controlled exhaust valve 12 .

[0024] A control standard can be formulated based on the detection results of the oxygen content detector 6, the number of electronically controlled steam exhaust valves 12 carried on the deaerator 1, and the opening size of a single electronically controlled steam exhaust valve 12. A corresponding control index is associated with the oxygen content index. When it is detected that the oxygen content of the water output by the deaerator 1 reaches the corresponding threshold, the corresponding control index is executed to adjust the opening degree of the electronically controlled steam exhaust valve 12, that is, the opening amount.

[0025] This application controls the opening of the exhaust valve by measuring the oxygen content of the water outlet of the built-in deaerator. By controlling the exhaust volume, the steam consumption of the built-in deaerator is reduced, achieving energy conservation. The steam output of the exhaust port is timely adjusted according to the operating parameters of the deaerator 1, and the external exhaust steam is adjusted from the traditional uncontrollable state to the adjustable state. Under the premise that the water inlet and heating steam of the deaerator body are adjustable, all inlet and outlet water and steam are adjustable, thus strengthening the control capability of the thermal balance within the deaerator and reducing the waste of heat energy and water resources.

[0026] In an embodiment of the present application, the deaerator 1 also includes a water inlet port 2, a steam inlet port 3, and a sewage discharge port 4, wherein the water inlet port 2 can supply desalted water, the steam inlet port 3 can supply heating steam, the sewage discharge port 4 can be connected to a sewage tank, and the operating port 5 can be directly connected to a boiler feed water pump to supply water to the boiler.

[0027] In order to control the supply of desalted water to the water inlet port 2, the water input port of the deaerator 1 can be connected to the water inlet port 2 through a water pipeline, and a water inlet valve group 21 is provided on the water pipeline.

[0028] Specifically, the water supply pipeline is provided with two parallel control pipes at the water inlet valve group 21. The water inlet valve group 21 includes an electrically controlled stop valve and a mechanical valve. One of the control pipes is equipped with an electrically controlled stop valve, and the other control pipe is equipped with a mechanical valve. A water inlet detector 22 is provided in the deaerator 1, and the water inlet detector 22 is electrically connected to the electrically controlled stop valve.

[0029] The water inlet detector 22 can be a liquid level sensor to detect the liquid level in the deaerator 1; further, it can be equipped with a water quality sensor to detect the water quality in the deaerator 1. When the water quality reaches the preset standard, it will prompt the user to perform sewage treatment or water replacement.

[0030] See also Figure 1 An exhaust valve 11 and a first safety valve 111 may be provided at the water input port of the deaerator 1. The setting positions of the exhaust valve 11 and the first safety valve 111 are exemplary and can be adjusted according to actual practical needs and usage environment.

[0031] In order to control the supply of heating steam to the steam inlet port 3 , the steam input port of the deaerator 1 may be connected to the steam inlet port 3 via a steam transmission pipeline, and a steam inlet valve group 31 may be provided on the steam transmission pipeline.

[0032] Specifically, the steam transmission pipeline is equipped with two parallel control pipes at the steam inlet valve group 31. The steam inlet valve group 31 includes an electrically controlled shutoff valve and a mechanical valve. One control pipe is equipped with an electrically controlled shutoff valve, and the other is equipped with a mechanical valve. A steam inlet detector 32 is installed in the deaerator 1 and is electrically connected to the electrically controlled shutoff valve. The steam inlet detector 32 can be an integrated detector including a temperature sensor and a pressure sensor to monitor the pressure and temperature within the deaerator 1.

[0033] It can be understood that the electrically controlled stop valves on the water pipeline and the gas pipeline can be solenoid valves or pneumatic valves, and the switch status can be adjusted according to the detection results of the detector; the mechanical valves on the water pipeline and the gas pipeline are manual stop valves, which can be manually operated in an emergency to eliminate safety hazards and reduce safety risks.

[0034] An electrically controlled steam exhaust valve 12 and a second safety valve 121 are provided at the steam input port of the deaerator 1. The deaerator 1 is provided with a plurality of electrically controlled steam exhaust valves 12, each of which is electrically connected to the oxygen content detector 6.

[0035] As a feasible embodiment, the opening degree of each electronically controlled exhaust valve 12 may be synchronously adjusted according to the detection data of the oxygen content detector 6 .

[0036] In a preferred embodiment, a controller can be set up for multiple electronically controlled exhaust valves 12, and the oxygen detector 6 is electrically connected to the controller. The controller controls the opening degree and opening number of each electronically controlled exhaust valve 12. The controller adjusts the opening degree and opening number of the electronically controlled exhaust valve according to the detection results of the oxygen detector.

[0037] In the present application, the sewage discharge port 4 and the sewage removal port of the deaerator 1 can be connected through a sewage discharge pipe. A sewage discharge valve 41 can be provided on the sewage discharge pipe. When sewage needs to be discharged, the sewage discharge valve 41 can be opened.

[0038] In the embodiment of the present application, a sampling port 13 is provided on the deaerator 1, and the sampling port 13 is provided close to the output port. The water in the deaerator 1 can be sampled based on the sampling port 13 for more detailed testing to ensure that the water supplied to the boiler meets the requirements.

[0039] In the embodiment of the present application, the deaerator 1 is further provided with a first backup port 14 and a second backup port 15. The first backup port 14 is located above the deaerator 1 and can be used for exhaust and steam exhaust. The first backup port 14 can be equipped with a shutoff valve, which can be closed when in use. The second backup port 15 is located below the deaerator 1 and can be used for water exchange and sewage discharge. The second backup port 15 can be equipped with a shutoff valve, which can be closed when not in use.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0041] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific embodiments of the present invention are not limited to these descriptions. For those skilled in the art of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.

Claims

1. An automatic oxygen exhaust system for a built-in deaerator, characterized in that: The invention comprises a deaerator (1), an operating port (5), and an oxygen content detector (6); the output port of the deaerator (1) is connected to the operating port (5) via a water supply pipe; the water supply pipe is provided with an oxygen content detector (6); and at least one electrically controlled steam exhaust valve (12) on the deaerator (1) is electrically connected to the oxygen content detector (6).

2. The automatic oxygen exhaust system for a built-in deaerator according to claim 1, characterized in that: It also comprises a water inlet port (2), the water input port of the deaerator (1) being connected to the water inlet port (2) via a water delivery pipeline, and a water inlet valve group (21) is provided on the water delivery pipeline.

3. The automatic oxygen exhaust system for a built-in deaerator according to claim 2, characterized in that: The water delivery pipeline is provided with two parallel control pipelines at the water inlet valve group (21), the water inlet valve group (21) comprising an electrically controlled stop valve and a mechanical valve, wherein one of the control pipelines is equipped with the electrically controlled stop valve, and the other control pipeline is equipped with the mechanical valve; a water inlet detector (22) is provided in the deaerator (1), and the water inlet detector (22) is electrically connected to the electrically controlled stop valve.

4. The automatic oxygen exhaust system for a built-in deaerator according to claim 2, characterized in that: An exhaust valve (11) and a first safety valve (111) are provided at the water input port of the deaerator (1).

5. The automatic oxygen exhaust system for a built-in deaerator according to claim 1, characterized in that: The deaerator (1) is provided with a sampling port (13), and the sampling port (13) is arranged close to the output port.

6. The automatic oxygen exhaust system for a built-in deaerator according to claim 1, characterized in that: It also comprises a steam inlet port (3), the steam input port of the deaerator (1) being connected to the steam inlet port (3) via a steam transmission pipeline, and a steam inlet valve group (31) is provided on the steam transmission pipeline.

7. The automatic oxygen exhaust system for a built-in deaerator according to claim 6, characterized in that: The steam transmission pipeline is provided with two parallel control pipelines at the steam inlet valve group (31), the steam inlet valve group (31) comprising an electrically controlled stop valve and a mechanical valve, one of the control pipelines being equipped with the electrically controlled stop valve, and the other control pipeline being equipped with the mechanical valve; a steam inlet detector (32) is provided in the deaerator (1), the steam inlet detector (32) being electrically connected to the electrically controlled stop valve.

8. The automatic oxygen exhaust system for a built-in deaerator according to claim 6, characterized in that: The electric-controlled steam exhaust valve (12) and the second safety valve (121) are provided at the steam input port of the deaerator (1).

9. The automatic oxygen exhaust system for a built-in deaerator according to claim 8, characterized in that: The deaerator (1) is provided with a plurality of the electrically controlled steam exhaust valves (12); the deaerator (1) is also provided with a first spare port (14) and a second spare port (15), wherein the first spare port (14) is provided above the deaerator (1), and the second spare port (15) is provided below the deaerator (1).

10. The automatic oxygen exhaust system for a built-in deaerator according to claim 1, characterized in that: It also comprises a sewage discharge port (4), the sewage discharge port of the deaerator (1) and the sewage discharge port (4) are connected to each other via a sewage discharge pipe, and a sewage discharge valve (41) is provided on the sewage discharge pipe.

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