Waste heat boiler superheater steam exhaust device and waste heat boiler superheater steam exhaust assembly

Abstract

The utility model discloses a waste heat boiler superheater steam exhaust device and a waste heat boiler superheater steam exhaust assembly, the waste heat boiler superheater steam exhaust device comprises a waste heat boiler superheater main steam collecting box, and the waste heat boiler superheater main steam collecting box is provided with a pressure intensity monitoring port, an emergency steam exhaust port and a safety steam exhaust port. A pressure monitoring port is arranged at the emergency steam exhaust port, a pressure measuring device is arranged at the pressure monitoring port, a silencer is arranged at the emergency steam exhaust port, an electric valve is arranged between the emergency steam exhaust port and the silencer, and a safety relief valve is arranged at the safety steam exhaust port. Due to the fact that the silencer is arranged, noise is low during steam exhausting, and due to the fact that the safety relief valve is arranged, safety of the whole waste heat boiler superheater steam exhausting device can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of boilers, and in particular relates to a waste heat boiler superheater exhaust device and a waste heat boiler superheater exhaust assembly. Background Art

[0002] As a special equipment, the waste heat boiler will generate a lot of noise when exhausting steam in an emergency, and this kind of noise will cause noise pollution. If the waste heat boiler is close to a residential area, it will cause trouble to the normal life of the surrounding residents. For example, CN213954677U "Silencer for Exhaust of Residual Steam from Cylinders of Incineration Waste Heat Boiler" and document number CN214223824U "A Low-noise Waste Heat Boiler" disclose boiler silencers, but their structures are relatively complicated. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a waste heat boiler superheater exhaust device with a simple structure and good silencing effect during emergency exhaust.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a waste heat boiler superheater exhaust device, including a waste heat boiler superheater main steam header, the waste heat boiler superheater main steam header is provided with a pressure monitoring port, an emergency exhaust port and a safety exhaust port, the pressure monitoring port is provided with a pressure measuring device, the emergency exhaust port is provided with a muffler, and an electric valve is provided between the emergency exhaust port and the muffler, and the safety exhaust port is provided with a safety pressure relief valve.

[0005] The beneficial effects of the above technical solution are: its structure is simple, so that the emergency exhaust port can open the electric valve to exhaust when exhausting steam. Since a muffler is provided, the noise during exhaust is low, and by providing a safety pressure relief valve, the safety of the entire waste heat boiler superheater exhaust device can be improved.

[0006] In the above technical solution, a steam exhaust port is also provided on the main steam header of the waste heat boiler superheater, and an exhaust valve is provided at the steam exhaust port.

[0007] The beneficial effect of the above technical solution is that the exhaust valve can be opened to exhaust air or accumulated liquid at the initial stage of operation of the main steam header of the waste heat boiler superheater or when water accumulates inside and affects the circulation.

[0008] A first valve is also provided between the emergency exhaust port and the muffler in the above technical solution.

[0009] The beneficial effect of the above technical solution is that: it has a simple structure, so that when the electric valve is replaced or the like, the emergency exhaust port can be closed by the first valve.

[0010] In the above technical solution, the pressure monitoring port is connected to the pressure measuring device via a measuring transfer tube, and a second valve is provided on the measuring transfer tube.

[0011] The beneficial effect of the above technical solution is that the second valve can be closed when the pressure measuring device needs to be replaced.

[0012] The middle portion of the measuring transfer tube in the above technical solution is spirally wound to form a buffer portion.

[0013] The beneficial effect of the above technical solution is that it can prevent the steam pressure chamber in the measuring transfer tube from directly impacting the pressure measuring device.

[0014] A switching valve is also provided on the measuring switching tube in the above technical solution.

[0015] The beneficial effect of the above technical solution is that other measuring instruments can be switched through the switching valve when needed.

[0016] In the above technical solution, there are multiple pressure monitoring ports.

[0017] The beneficial effect of the above technical solution is that the pressure in the main steam header of the waste heat boiler superheater can be measured at multiple points.

[0018] In the above technical solution, two pressure monitoring ports are provided.

[0019] The beneficial effect of the above technical solution is that it has a simple structure.

[0020] The second purpose of the utility model is to provide a waste heat boiler superheater exhaust assembly with a simple structure, low noise during exhaust, and high safety.

[0021] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a waste heat boiler superheater exhaust assembly, including a high-temperature superheater outlet header and the waste heat boiler superheater exhaust device as described above, the waste heat boiler superheater main steam header is arranged above the high-temperature superheater outlet header, and the two are connected to each other.

[0022] The beneficial effects of the above technical solution are: its structure is simple and its safety is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the exhaust device of the waste heat boiler superheater described in Example 1 of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the exhaust assembly of the waste heat boiler superheater described in Example 2 of the utility model.

[0025] In the figure: 10. Waste heat boiler superheater exhaust device; 1. Waste heat boiler superheater main steam header; 11. Pressure monitoring port; 12. Emergency exhaust port; 13. Safety exhaust port; 14. Exhaust port; 15. Measuring transfer tube; 151. Buffer; 2. Pressure measuring device; 3. Muffler; 4. Electric valve; 5. Safety pressure relief valve; 6. Exhaust valve; 7. First valve; 8. Second valve; 9. Transfer valve; 20. High temperature superheater outlet header; 30. C-shaped pipe. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0027] Example 1

[0028] like Figure 1 As shown, the present embodiment provides a waste heat boiler superheater exhaust device, including a waste heat boiler superheater main steam header 1, the waste heat boiler superheater main steam header 1 is provided with a pressure monitoring port 11, an emergency exhaust port 12 and a safety exhaust port 13, the pressure monitoring port 11 is provided with a pressure measuring device 2, the emergency exhaust port 12 is provided with a muffler 3, and an electric valve 4 is provided between the emergency exhaust port 12 and the muffler 3, and the safety exhaust port 13 is provided with a safety pressure relief valve 5, which has a simple structure, so that when the emergency exhaust port is exhausting steam, the electric valve can be opened for exhaust, and since the muffler is provided, the noise is low when exhausting steam, and by providing the safety pressure relief valve, the safety of the entire waste heat boiler superheater exhaust device can be improved.

[0029] In the above technical solution, a steam exhaust port 14 is also provided on the main steam header 1 of the waste heat boiler superheater, and an exhaust valve 6 is provided at the steam exhaust port 14, so that the exhaust valve can be opened to exhaust air or discharge accumulated liquid in the initial operation of the main steam header of the waste heat boiler superheater or when water accumulates inside and affects the circulation.

[0030] In the above technical solution, a first valve 7 is further provided between the emergency exhaust port 12 and the muffler 3, and its structure is simple. Thus, when the electric valve is replaced or the like, the emergency exhaust port can be closed by the first valve.

[0031] In the above technical solution, the pressure monitoring port 11 is connected to the pressure measuring device 2 via a measuring transfer tube 15, and a second valve 8 is provided on the measuring transfer tube 15, so that the second valve can be closed when the pressure measuring device needs to be replaced.

[0032] The middle portion of the measuring transfer tube 15 in the above technical solution is spirally wound to form a buffer portion 151, which can prevent the steam pressure chamber in the measuring transfer tube from directly impacting the pressure measuring device.

[0033] The measuring transfer tube 15 in the above technical solution is also provided with a transfer valve 9, so that other measuring instruments can be transferred through the transfer valve when needed.

[0034] In the above technical solution, there are multiple pressure monitoring ports 11, so that the pressure in the main steam header of the waste heat boiler superheater can be measured at multiple points.

[0035] In the above technical solution, two pressure monitoring ports 11 are provided, and the structure is simple.

[0036] The silencer described in this embodiment can adopt the silencer structure disclosed in document numbers CN202467975U "Steam / Air Muffler" and CN211788150U "A Multi-chamber Shunt Impedance Composite Muffler".

[0037] The pressure measuring device 2 in this embodiment can be a pressure gauge or a pressure sensor. In this embodiment, a DSC controller (set in a control cabinet) can also be provided. The electric valve and the pressure sensor can be electrically connected to the DSC controller, so that the controller can control the opening or closing of the electric valve according to the pressure value monitored by the pressure sensor.

[0038] Example 2

[0039] like Figure 2 As shown, this embodiment provides a waste heat boiler superheater exhaust assembly, including a high-temperature superheater outlet header 20 and a waste heat boiler superheater exhaust device 10 as described in Example 1, the waste heat boiler superheater main steam header 1 is arranged above the high-temperature superheater outlet header 20, and the two are interconnected, the structure is simple, and the safety is good.

[0040] In this embodiment, the waste heat boiler superheater main steam header 1 and the high temperature superheater outlet header 20 are connected through a C-shaped pipe 30.

[0041] It should be noted that the above detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0044] Also, when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0045] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0046] For ease of description, spatially relative terms such as "on", "above", "on the upper surface", "upper", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figures. It should be understood that the spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures.

[0047] For example, if a device in a drawing is inverted, a device described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can encompass both "above" and "below." The device may also be oriented in other different ways (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

[0048] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A waste heat boiler superheater exhaust device, characterized in that: The invention comprises a main steam header (1) of a waste heat boiler superheater, wherein the main steam header (1) of the waste heat boiler superheater is provided with a pressure monitoring port (11), an emergency steam exhaust port (12) and a safety steam exhaust port (13), the pressure monitoring port (11) is provided with a pressure measuring device (2), the emergency steam exhaust port (12) is provided with a muffler (3), an electric valve (4) is provided between the emergency steam exhaust port (12) and the muffler (3), and the safety steam exhaust port (13) is provided with a safety pressure relief valve (5).

2. The exhaust device for superheater of waste heat boiler according to claim 1, characterized in that: The waste heat boiler superheater main steam header (1) is also provided with a steam exhaust port (14), and an exhaust valve (6) is provided at the steam exhaust port (14).

3. The exhaust device for superheater of waste heat boiler according to claim 1, characterized in that: A first valve (7) is also provided between the emergency steam exhaust port (12) and the muffler (3).

4. The exhaust device for superheater of waste heat boiler according to claim 1, characterized in that: The pressure monitoring port (11) is connected to the pressure measuring device (2) via a measuring transfer tube (15), and a second valve (8) is provided on the measuring transfer tube (15).

5. The exhaust device for superheater of waste heat boiler according to claim 4, characterized in that: The middle portion of the measuring transfer tube (15) is spirally wound to form a buffer portion (151).

6. The exhaust device for superheater of waste heat boiler according to claim 4, characterized in that: The measuring transfer tube (15) is also provided with a transfer valve (9).

7. The exhaust device for superheater of waste heat boiler according to any one of claims 1 to 6, characterized in that: The pressure monitoring ports (11) are provided in plurality.

8. The exhaust device for superheater of waste heat boiler according to claim 7, characterized in that: The pressure monitoring ports (11) are provided with two.

9. A waste heat boiler superheater exhaust assembly, characterized in that: It comprises a high-temperature superheater outlet header (20) and a waste heat boiler superheater exhaust device (10) as claimed in any one of claims 1 to 8, wherein the waste heat boiler superheater main steam header (1) is arranged above the high-temperature superheater outlet header (20), and the two are interconnected.

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