A waste heat recovery device for waste boiler of dilute nitric acid

Abstract

The utility model relates to the field of resource energy conservation technology, and discloses a waste heat recovery device for a waste boiler of dilute nitric acid, including a bracket assembly, a fixing assembly is installed at the bottom of the bracket assembly, and a dehumidification assembly is installed in the middle of the top thereof, and a convenient connection assembly is installed at the top corresponding to the dehumidification assembly. The utility model can avoid certain influence of internal water vapor during the conversion of waste heat conduction by installing a dehumidification assembly in the middle of the device, so that after passing through this assembly, energy can be converted only through its heat.

Description

Technical Field

[0001] The utility model relates to the technical field of resource energy conservation, in particular to a waste heat recovery device for a waste boiler of dilute nitric acid. Background Art

[0002] Waste heat is energy that is not utilized in energy utilization equipment under certain economic and technical conditions, that is, excess and waste energy. Waste heat recovery is an important way to improve economy and save fuel. There are various waste heat in the production process of thermal power plants. For example, waste heat from boiler exhaust, deaerator exhaust and steam seal exhaust. This type of waste heat belongs to the heat carrying working fluid, usually while recycling heat. Part of the working fluid will also be recovered: another type of waste heat, they only have heat to use, there is no recovery of working fluid, such as heat lost by generators, heat taken away by oil coolers and waste heat from boiler exhaust. This type of waste heat belongs to pure heat recovery. The availability and value of waste heat are determined by its output and quality. The quantity of waste heat refers to the size of waste heat, and the quality of waste heat refers to the grade of waste heat, which can be characterized by its temperature, pressure and the medium that carries heat. The higher the grade of waste heat, the greater the quantity, the greater its availability and value. The availability and value of waste heat are not equal to the effect of waste heat utilization. The former refers to the quality and properties of the waste heat itself. It only indicates the availability of waste heat, but not the effectiveness of waste heat utilization. The latter is not entirely determined by the quality of the waste heat itself, but also by the location, environment and method of waste heat utilization, that is, the object and conditions of waste heat utilization. For example, waste heat is better used as heat than as function. This is because heat conversion to work requires the loss of cold sources. The thermal system of a thermal power plant has various energy levels, which provides greater freedom for selecting the location of waste heat utilization.

[0003] The application number is CN202223402354.8, which discloses a waste heat recovery device and relates to the field of thermal energy utilization technology, including an insulation bin, which is installed between an exothermic reactor and an endothermic reactor, and heat-conducting components are installed between the insulation bin and the exothermic reactor and the endothermic reactor. On the basis of a flue gas desulfurization device (exothermic reactor), an endothermic reactor (flue gas purification furnace) is provided, and a waste heat recovery device is proposed for heat conduction. When the exothermic reactor generates heat, the heat-absorbing pipes evenly wound outside the furnace wall absorb the heat of the flue gas in the furnace and smoothly transfer it to the heat-absorbing ring, and the heat-absorbing ring smoothly transfers the heat to the heat-conducting ring through a rotating plate, a first fixed plate and a second fixed plate, and five groups of evenly distributed heat-conducting pipes evenly distribute the heat on the outer wall of the endothermic reactor, which can not only provide heat support for the catalyst inside the flue gas purification furnace, but also realize the full utilization of waste heat in the desulfurization process.

[0004] Although the above-mentioned utility model can generate heat through the evenly wound heat-absorbing tubes outside the furnace wall when the exothermic reactor generates heat, and smoothly transfer it to the heat-absorbing ring, and the heat-absorbing ring can smoothly transfer the heat to the heat-conducting ring through the rotating plate, the first fixed plate and the second fixed plate, and the heat is evenly distributed on the outer wall of the endothermic reactor by five groups of evenly distributed heat-conducting tubes, which can not only provide heat support for the catalyst inside the flue gas purification furnace, but also realize the full utilization of the waste heat in the desulfurization process, but there is a shortcoming that when the device is performing heat energy conversion, some moisture is very likely to be generated during the conduction of the remaining heat, which will have a certain impact on the conversion. Utility Model Content

[0005] The purpose of the utility model is to provide a waste heat recovery device for a dilute nitric acid waste boiler. By installing a dehumidification component in the middle of the device, it can be made possible to avoid the influence of internal water vapor during the conversion of waste heat conduction. In this way, after passing through this component, energy can be converted solely through its heat to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model is a waste heat recovery device for a waste boiler of dilute nitric acid, comprising a bracket assembly, a fixing assembly is installed at the bottom of the bracket assembly, a dehumidification assembly is installed in the middle of the top, and a convenient connection assembly is installed at the top corresponding to the dehumidification assembly.

[0008] Furthermore, the bracket assembly includes a bracket rod, a residual temperature groove is installed at the bottom of the bracket rod, a suction bracket is arranged at the top corresponding to the residual temperature groove, a suction port is installed inside the suction bracket, and a mounting bracket is installed at the top.

[0009] Furthermore, the fixing assembly includes a fixing plate, a connecting base plate is installed at the bottom of the fixing plate, and fixing hooks are installed at the four bottom corners of the connecting base plate.

[0010] Furthermore, the dehumidification assembly includes an installation box, a plurality of through slots are provided inside the installation box, hygroscopic baffles are installed on both sides of the through slots, and hygroscopic filling material is installed in the middle of the hygroscopic baffles.

[0011] Furthermore, the convenient connection component includes a connection component 1, a connection component 2 is installed on an outer section of the connection component 1, and the connection component 1 includes a connection pipe 1, and a limiting groove is provided on the front side of the connection pipe 1.

[0012] Furthermore, the connecting component 2 includes a connecting tube 2, a limiting plate 1 is installed in the middle of the outer side of the connecting tube 2, a return spring is installed on the front side of the limiting plate 1, a limiting plate 2 is arranged on the front side of the return spring, a control tube is installed on the outer side of the limiting plate 2, and a movable groove is opened on the front side, and a limiting ball is installed inside the movable groove.

[0013] The utility model has the following beneficial effects:

[0014] (1) The utility model is a waste heat recovery device for a waste boiler of dilute nitric acid. By installing a dehumidification component in the middle of the device, it can avoid the influence of internal water vapor during the conversion of waste heat conduction. In this way, after passing through this component, energy can be converted only through its heat.

[0015] (2) The utility model is a waste heat recovery device for a dilute nitric acid waste boiler. The original connection structure on the top of the device is replaced with a convenient connection component. This can provide a certain degree of convenience for maintenance during use, as well as a certain degree of convenience during installation and disassembly.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a waste heat recovery device for a waste boiler of dilute nitric acid according to the utility model;

[0019] Figure 2 This is a structural schematic diagram of a convenient connection component of a waste heat recovery device for a waste boiler of dilute nitric acid according to the utility model;

[0020] Figure 3 This is a schematic diagram of the fixed component structure of a waste heat recovery device for a waste boiler of dilute nitric acid according to the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of a dehumidification component of a waste heat recovery device for a waste boiler of dilute nitric acid according to the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. bracket assembly; 2. fixing assembly; 3. dehumidification assembly; 4. convenient connection assembly; 101. bracket rod; 102. residual temperature groove; 103. suction bracket; 104. mounting bracket; 105. suction port; 201. fixing plate; 202. connecting bottom plate; 203. fixing hook; 301. mounting box; 302. through groove; 303. moisture-absorbing partition; 304. moisture-absorbing filling material; 401. connection assembly one; 402. connection assembly two; 4011. connecting pipe one; 4012. limiting groove; 4021. connecting pipe two; 4022. limiting plate one; 4023. reset spring; 4024. movable groove; 4025. limiting ball; 4026. control pipe; 4027. limiting plate two. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 - Figure 4 As shown, the utility model is a waste heat recovery device for a dilute nitric acid waste boiler, comprising a bracket assembly 1, a fixing assembly 2 is installed at the bottom of the bracket assembly 1, and a dehumidification assembly 3 is installed in the middle of the top thereof, and a convenient connection assembly 4 is installed at the top corresponding to the dehumidification assembly 3.

[0026] By installing a dehumidification component 3 in the middle of the device, it is possible to prevent the internal water vapor from having a certain impact during the conversion of waste heat conduction, so that after passing through this component, energy can be converted solely through its heat.

[0027] The bracket assembly 1 includes a bracket rod 101, a residual temperature groove 102 is installed at the bottom of the bracket rod 101, a suction bracket 103 is arranged at the top corresponding to the residual temperature groove 102, a suction port 105 is installed inside the suction bracket 103, and a mounting bracket 104 is installed at the top.

[0028] The fixing assembly 2 includes a fixing plate 201, a connecting base plate 202 is installed at the bottom of the fixing plate 201, and fixing hooks 203 are installed at the four bottom corners of the connecting base plate 202. The setting of the fixing hooks 203 allows the parts of the device to be more firmly connected and installed on its bottom or other bases when using the device.

[0029] The dehumidification component 3 includes an installation box 301, and a plurality of through grooves 302 are opened inside the installation box 301. Hygroscopic baffles 303 are installed on both sides of the through grooves 302. Hygroscopic filling materials 304 are installed in the middle of the hygroscopic baffles 303. The hygroscopic filling materials 304 and hygroscopic baffles 303 can absorb the internal moisture when the component is installed in the middle position of the waste heat conduction, so that the heat energy can be converted alone and the long-term accumulation of moisture can be avoided to affect the internal parts.

[0030] The convenient connection component 4 includes a connection component 1 401 , a connection component 2 402 is installed on an outer section of the connection component 1 401 , and the connection component 1 401 includes a connection pipe 1 4011 , and a limiting groove 4012 is provided on the front side of the connection pipe 1 4011 .

[0031] The second connecting component 402 includes a second connecting pipe 4021, a limiting plate 4022 is installed in the middle of the outer side of the second connecting pipe 4021, a return spring 4023 is installed on the front side of the limiting plate 4022, and a limiting plate 4027 is arranged on the front side of the return spring 4023. A control pipe 4026 is installed on the outer side of the limiting plate 4027, and a movable groove 4024 is opened on the front side of the limiting plate 4027, and a limiting ball 4025 is installed inside the movable groove 4024. When installing and connecting, first move the control pipe 4026 to the rear side, and then move the connecting pipe 1 4011 to the inside of the connecting pipe 2 4021 until the limiting ball 4025 falls into the limiting groove 4012, then you can let go, and the control pipe 4026 is reset by the set return spring 4023 and pressed on the limiting ball 4025 that has fallen into the limiting groove 4012 to complete the connection, and the same applies when disassembly is required.

[0032] When using this device, first, when installing the connection, first move the control tube 4026 to the rear side, then move the connecting tube 1 4011 to the inside of the connecting tube 2 4021 until the limiting ball 4025 falls into the limiting groove 4012 and then you can let go, and use the reset spring 4023 to reset the control tube 4026 and press it on the limiting ball 4025 that has fallen into the limiting groove 4012 to complete the connection. The same is true when disassembly is required. Then the residual heat will rise through the provided desiccant component 3, and through the desiccant filling material 304 and the desiccant partition 303, when the component is installed in the middle position of the residual heat conduction, it can absorb the internal moisture, so that it can convert only through heat energy and avoid the long-term accumulation of moisture to affect its internal parts.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A waste heat recovery device for a waste boiler of dilute nitric acid, comprising a support assembly (1), characterized in that: A fixing component (2) is installed at the bottom of the bracket component (1), and a dehumidification component (3) is installed in the middle of the top thereof; a convenient connection component (4) is installed at the top corresponding to the dehumidification component (3).

2. A waste heat recovery device for a waste boiler of dilute nitric acid according to claim 1, characterized in that: The support assembly (1) comprises a support rod (101), a residual temperature groove (102) is installed at the bottom of the support rod (101), a suction support (103) is arranged at the top corresponding to the residual temperature groove (102), a suction port (105) is installed inside the suction support (103), and a mounting support (104) is installed at the top.

3. A waste heat recovery device for a waste boiler of dilute nitric acid according to claim 1, characterized in that: The fixing assembly (2) comprises a fixing plate (201), a connecting base plate (202) is installed at the bottom of the fixing plate (201), and fixing hooks (203) are installed at the four corners of the bottom of the connecting base plate (202).

4. A waste heat recovery device for a waste boiler of dilute nitric acid according to claim 1, characterized in that: The dehumidification component (3) comprises an installation box (301), a plurality of through slots (302) are provided inside the installation box (301), hygroscopic baffles (303) are installed on both sides of the through slots (302), and hygroscopic filling material (304) is installed in the middle of the hygroscopic baffles (303).

5. The waste heat recovery device for waste boiler of dilute nitric acid according to claim 1, characterized in that: The convenient connection component (4) comprises a connection component 1 (401), a connection component 2 (402) is installed on a section of the outer side of the connection component 1 (401), and the connection component 1 (401) comprises a connection pipe 1 (4011), and a limiting groove (4012) is provided on the front side of the connection pipe 1 (4011).

6. A waste heat recovery device for a waste boiler of dilute nitric acid according to claim 5, characterized in that: The second connecting component (402) comprises a second connecting pipe (4021), a limiting plate (4022) is installed in the middle of the outer side of the second connecting pipe (4021), a return spring (4023) is installed on the front side of the limiting plate (4022), a limiting plate (4027) is arranged on the front side of the return spring (4023), a control tube (4026) is installed on the outer side of the limiting plate (4027), and a movable groove (4024) is opened on the front side, and a limiting ball (4025) is installed inside the movable groove (4024).

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