Unit low load section waste heat recycling device

Abstract

The utility model relates to the technical field of waste heat recovery, and disclose a unit low load section waste heat recycling device, including plate heat exchanger, the front end fixed mounting of plate heat exchanger has the connecting pipe, and one end fixed mounting has first connecting end in connecting pipe, the one side of first connecting end is provided with the assembling mechanism, the assembling mechanism includes the connecting shell, the inside of first connecting end is worn and connected, and one end fixed mounting has first connecting ring in the connecting shell wear and enter first connecting end. The utility model discloses through first connecting end, connecting shell, conveying shell, rotary shell and second connecting end can be quickly disassembled between, thereby can be convenient for the replacement or cleaning of first filter fine mesh, filter filler and second filter fine mesh, cooperate coarse filter screen, can form the effect of multilayer filtration, effectively avoid the impurity dust etc. into plate heat exchanger, the situation of long time causes the accumulation deposition, influence heat exchange efficiency even cause the influence to the operation of equipment itself.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery technology, specifically a waste heat recovery and utilization device for low-load sections of generating units. Background Technology

[0002] Waste heat recovery devices refer to systems that recover and reuse excess heat (such as high-temperature waste gas, waste liquid, and waste vapor) generated in industrial production through heat exchange equipment. They can effectively improve energy utilization, reduce energy consumption and pollutant emissions, and plate heat exchangers are a common type of heat exchanger.

[0003] The patent specification with announcement number CN222317800U discloses a waste heat recovery device for heating units. This utility model combines a recovery tank, a metal heat-conducting plate, and a phase change heat storage ceramic block. During the circulation of water in the recovery tank, the metal heat-conducting plate directs the water temperature to the phase change heat storage ceramic block, which absorbs and stores the heat. When the water temperature in the tank is low, the heat is continuously released through the phase change heat storage ceramic block, thus preventing the rapid loss of recovered heat. This solves the problem that traditional waste heat recovery devices for heating units only transfer heat to heat the water tank, resulting in the loss of recovered waste heat, causing the water temperature in the tank to drop rapidly or fail to reach the specified temperature.

[0004] However, in implementing the relevant technology, the following problems were found in the waste heat recovery device of the heating unit designed above: Although the existing technology improves the utilization effect of waste heat by cooperating with components such as water tanks, in the actual use process, when the medium enters the waste heat recovery device for circulation, many impurities may be adsorbed. Over time, they are easy to deposit or accumulate, causing blockage of the flow channel, thereby reducing the heat exchange efficiency and even affecting the normal operation of the equipment. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem that when the medium enters the waste heat recovery device, it may be adsorbed with many impurities, which can easily deposit or accumulate over time, causing blockage of the flow channel, thereby reducing heat exchange efficiency and even affecting the normal operation of the equipment.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] The waste heat recovery and utilization device for the low-load section of the unit includes a plate heat exchanger. A connecting pipe is fixedly installed at the front end of the plate heat exchanger, and a first connecting end is fixedly installed at one end of the connecting pipe. An assembly mechanism is provided on one side of the first connecting end.

[0009] The assembly mechanism includes a connecting shell, which extends through the interior of a first connecting end. A first connecting ring is fixedly installed at one end of the connecting shell that extends into the first connecting end. A second connecting ring is fixedly installed at the other end of the connecting shell. A conveying shell is sleeved on the outside of the second connecting ring. A rotating shell extends through the interior of the conveying shell. A second connecting end is fixedly installed at one end of the rotating shell, and a coarse filter screen is fixedly installed inside the rotating shell.

[0010] As a further improvement of this utility model: a retaining ring is fixedly installed at one end of the rotating shell that penetrates into the conveying shell, and a retaining groove is provided inside the conveying shell at the position corresponding to the retaining ring.

[0011] As a further embodiment of this utility model: the connecting shell is detachably connected to the first connecting end via a first connecting ring, and the connecting shell is detachably connected to the conveying shell via a second connecting ring.

[0012] As a further embodiment of this utility model: the rotating shell and the conveying shell form a rotating structure, and the conveying shell is threadedly connected to the second connecting ring.

[0013] As a further improvement of this utility model: an abutment ring is fixedly installed on one side of the slot inside the conveying shell, and a first filter screen is movably connected to the other side of the abutment ring.

[0014] As a further embodiment of this utility model: a filter filler is embedded on one side of the first filter mesh, and a second filter mesh is movably connected to the other side of the filter filler.

[0015] As a further improvement of this utility model: a fixing shell is fixedly installed at the front end of the first filter screen, and a cleaning mechanism is provided on one side of the fixing shell.

[0016] As a further embodiment of this utility model: the cleaning mechanism includes a rotating rod that extends through the interior of the fixed shell, and a locking block is fixedly installed at one end of the rotating rod inside the fixed shell, and a guide fan blade is fixedly installed on the outer wall of one end of the rotating rod.

[0017] As a further improvement of this utility model: a fixing plate is fixedly installed on the outer wall of the rotating rod near the coarse filter screen, and a soft brush is embedded in the outer wall of the fixing plate.

[0018] As a further embodiment of this utility model: the rotating rod forms a rotating structure with the fixed shell through the locking block, and the fixed shell and the locking block form a locking structure.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model allows for quick assembly and disassembly of the first connecting end, connecting shell, conveying shell, rotating shell, and second connecting end, thus facilitating the replacement or cleaning of the first filter screen, filter packing, and second filter screen. Combined with the coarse filter screen, it can form a multi-layer filtration effect, effectively preventing impurities and dust from entering the plate heat exchanger and accumulating and settling over time, which would affect heat exchange efficiency or even the operation of the equipment itself.

[0021] 2. This utility model, through the cooperation of a rotating rod, a locking block, a guide fan blade, a fixing plate, and a soft brush, can apply pressure to the guide fan blade through the flow of the medium, causing the soft brush to rotate and adhere to the first filter screen, scraping away adsorbed dust and other debris, and clearing a channel for flow, thus avoiding excessive adsorption and blockage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the waste heat recovery and utilization device in the low-load section of the unit.

[0023] Figure 2 This is a schematic diagram of the connecting shell structure of the waste heat recovery and utilization device in the low-load section of the unit.

[0024] Figure 3 This is a schematic diagram of the rotating shell structure of the waste heat recovery and utilization device in the low-load section of the unit.

[0025] Figure 4 This is a schematic diagram of the filter packing structure for the waste heat recovery and utilization device in the low-load section of the unit.

[0026] Figure 5 A schematic diagram of the fixed plate structure of the waste heat recovery and utilization device in the low-load section of the unit.

[0027] In the diagram: 1. Plate heat exchanger; 2. Connecting pipe; 3. First connecting end; 4. Assembly mechanism; 401. Connecting shell; 402. First connecting ring; 403. Second connecting ring; 404. Conveying shell; 405. Rotating shell; 406. Coarse filter screen; 407. Second connecting end; 408. Slot; 409. Snap ring; 5. Contact ring; 6. First fine filter screen; 7. Filter packing; 8. Second fine filter screen; 9. Fixed shell; 10. Cleaning mechanism; 1001. Rotating rod; 1002. Clamping block; 1003. Guide fan blade; 1004. Fixed plate; 1005. Soft brush. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0031] Example 1:

[0032] Please see Figures 1-4 This is the first embodiment of the present invention.

[0033] This embodiment provides a waste heat recovery and utilization device for the low-load section of the unit, including a plate heat exchanger 1, a connecting pipe 2 fixedly installed at the front end of the plate heat exchanger 1, a first connecting end 3 fixedly installed at one end of the connecting pipe 2, and an assembly mechanism 4 provided on one side of the first connecting end 3.

[0034] The assembly mechanism 4 includes a connecting shell 401, which extends out of the interior of the first connecting end 3. A first connecting ring 402 is fixedly installed at one end of the connecting shell 401 that extends into the first connecting end 3. A second connecting ring 403 is fixedly installed at the other end of the connecting shell 401. A conveying shell 404 is sleeved on the outside of the second connecting ring 403. A rotating shell 405 extends out of the interior of the conveying shell 404. A second connecting end 407 is fixedly installed at one end of the rotating shell 405. A coarse filter screen 406 is fixedly installed inside the rotating shell 405.

[0035] Specifically, a retaining ring 409 is fixedly installed at one end of the rotating shell 405 that penetrates into the conveying shell 404, and a retaining groove 408 is provided inside the conveying shell 404 at the position corresponding to the retaining ring 409.

[0036] Furthermore, by engaging the retaining ring 409 and the retaining groove 408, the connecting shell 401 and the conveying shell 404 can be disassembled and assembled while the rotating shell 405 and the second connecting end 407 are fixed, allowing for the cleaning and maintenance of the internal components.

[0037] Specifically, the connecting shell 401 is detachably connected to the first connecting end 3 via the first connecting ring 402, and the connecting shell 401 is detachably connected to the conveying shell 404 via the second connecting ring 403.

[0038] Furthermore, the first connecting ring 402 and the second connecting ring 403 enable the connecting shell 401 to be quickly assembled with the connecting pipe 2 and the conveying shell 404, improving the overall ease of assembly and disassembly.

[0039] Specifically, the rotating shell 405 and the conveying shell 404 form a rotating structure, and the conveying shell 404 is threadedly connected to the second connecting ring 403.

[0040] Furthermore, the rotatable connection between the rotating housing 405 and the conveying housing 404 can prevent the limiting effect during the assembly and disassembly of the connecting housing 401 and the conveying housing 404.

[0041] Specifically, an abutment ring 5 is fixedly installed on one side of the slot 408 inside the conveyor housing 404, and a first filter screen 6 is movably connected to the other side of the abutment ring 5.

[0042] Furthermore, the contact ring 5 can limit the first fine filter screen 6 and work with the coarse filter screen 406 to achieve a dual filtration effect.

[0043] Specifically, a filter media 7 is embedded on one side of the first filter screen 6, and a second filter screen 8 is movably connected to the other side of the filter media 7.

[0044] Furthermore, when the connecting shell 401 and the conveying shell 404 are tightened by thread, they can come into contact with the second filter screen 8 and compress the filter filler 7 and the second filter screen 8 to form a pressing effect, which makes it convenient to directly disassemble and install the connecting shell 401 for replacement and cleaning later.

[0045] In use, the first connecting end 3 is first fixed to the first connecting ring 402 of the connecting shell 401 by threaded connection, so that it can communicate with the connecting pipe 2 of the plate heat exchanger 1. It is also fixed to the conveying shell 404 with the second connecting ring 403. At the same time, the rotating shell 405, which is rotatably connected by the slot 408 and the retaining ring 409, is fixed and communicated with the unit pipeline through the second connecting end 407. When the second connecting ring 403 enters the conveying shell 404, it abuts against the second filter screen 8. With the cooperation of the abutting ring 5, it limits and squeezes the first filter screen 6 and the filter packing 7, and achieves a multi-layer filtration effect with the coarse filter screen 406.

[0046] In summary, the combination of the coarse filter screen 406, the first fine filter screen 6, the filter packing 7, and the second fine filter screen 8 achieves a multi-layer filtration effect, effectively filtering impurities, dust, and debris in the medium and preventing them from entering the plate heat exchanger 1 and forming deposits that can cause blockages and affect operation over time. The connecting shell 401 and the conveying shell 404 facilitate disassembly and assembly, allowing for timely cleaning and replacement of the coarse filter screen 406, the first fine filter screen 6, the filter packing 7, and the second fine filter screen 8. Furthermore, the slot 408 and the retaining ring 409 ensure that the rotating shell 405 and the second connecting end 407 are fixedly connected to the unit when the connecting shell 401 is disassembled or assembled.

[0047] Example 2:

[0048] Please see Figure 4 and Figure 5 This is the second embodiment of the present utility model.

[0049] Specifically, a fixing shell 9 is fixedly installed at the front end of the first filter screen 6, and a cleaning mechanism 10 is provided on one side of the fixing shell 9.

[0050] Furthermore, the cleaning mechanism 10 can scrape off some impurities adsorbed by the first filter screen 6, avoiding excessive adsorption that could cause blockage and affect the flow of the medium.

[0051] Specifically, the cleaning mechanism 10 includes a rotating rod 1001 that extends through the interior of the fixed housing 9. A locking block 1002 is fixedly installed at one end of the rotating rod 1001 inside the fixed housing 9, and a guide fan blade 1003 is fixedly installed on the outer wall of one end of the rotating rod 1001.

[0052] Furthermore, the pressure generated during the flow of the medium can drive the guide fan blade 1003 to rotate, thereby causing the rotating rod 1001 to rotate. The rotation can be triggered by the flow of the medium, avoiding the trouble of setting up separate mechanical or electrical control equipment.

[0053] Specifically, a fixing plate 1004 is fixedly installed on the outer wall of the rotating rod 1001 near the coarse filter screen 406, and a soft brush 1005 is embedded in the outer wall of the fixing plate 1004.

[0054] Furthermore, the rotation of the rotating rod 1001 allows the fixed plate 1004 to drive the soft brush 1005 to rotate in contact with the first filter screen 6, thereby scraping off the adsorbed impurities and pushing them outward to form a flow channel to avoid affecting the flow of the medium.

[0055] Specifically, the rotating rod 1001 forms a rotating structure with the fixed shell 9 through the engaging block 1002, and the fixed shell 9 forms an engaging structure with the engaging block 1002.

[0056] Furthermore, by rotating and engaging the locking block 1002 with the fixed shell 9, the stability of the rotating rod 1001 during rotation can be improved.

[0057] When in use, when the medium flows, the impact pressure can drive the guide fan blade 1003 to rotate, so that the rotating rod 1001 rotates stably under the engagement of the locking block 1002 and the fixed shell 9, causing the fixed plate 1004 to drive the soft brush 1005 to rotate in contact with the first filter screen 6, and scrape off the adsorbed garbage and impurities.

[0058] In summary, the flow of the medium triggers and causes the fixed plate 1004 to rotate, allowing the soft brush 1005 to scrape off the impurities adsorbed by the first filter screen 6. The scraped impurities are pushed outward, clearing a flow channel and preventing blockages that could affect the efficiency of the medium flow.

[0059] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0060] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0061] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A waste heat recovery and utilization device for the low-load section of the unit, including: A plate heat exchanger (1) is characterized in that: a connecting pipe (2) is fixedly installed at the front end of the plate heat exchanger (1), and a first connecting end (3) is fixedly installed at one end of the connecting pipe (2), and an assembly mechanism (4) is provided on one side of the first connecting end (3). The assembly mechanism (4) includes a connecting shell (401), which extends through the interior of the first connecting end (3). A first connecting ring (402) is fixedly installed at one end of the connecting shell (401) that extends into the first connecting end (3). A second connecting ring (403) is fixedly installed at the other end of the connecting shell (401). A conveying shell (404) is sleeved on the outside of the second connecting ring (403). A rotating shell (405) extends through the interior of the conveying shell (404). A second connecting end (407) is fixedly installed at one end of the rotating shell (405). A coarse filter screen (406) is fixedly installed inside the rotating shell (405).

2. The waste heat recovery and utilization device for the low-load section of the unit according to claim 1, characterized in that: A retaining ring (409) is fixedly installed at one end of the rotating shell (405) that passes through the conveying shell (404), and a retaining groove (408) is provided inside the conveying shell (404) at the position corresponding to the retaining ring (409).

3. The waste heat recovery and utilization device for the low-load section of the unit according to claim 1, characterized in that: The connecting shell (401) is detachably connected to the first connecting end (3) via the first connecting ring (402), and the connecting shell (401) is detachably connected to the conveying shell (404) via the second connecting ring (403).

4. The waste heat recovery and utilization device for the low-load section of the unit according to claim 1, characterized in that: The rotating shell (405) and the conveying shell (404) form a rotating structure, and the conveying shell (404) is threadedly connected to the second connecting ring (403).

5. The waste heat recovery and utilization device for the low-load section of the unit according to claim 1, characterized in that: An abutment ring (5) is fixedly installed on one side of the slot (408) inside the conveying shell (404), and a first filter screen (6) is movably connected to the other side of the abutment ring (5).

6. The waste heat recovery and utilization device for the low-load section of the unit according to claim 5, characterized in that: The first filter screen (6) is fitted with filter filling material (7) on one side, and the filter filling material (7) is movably connected to the second filter screen (8) on the other side.

7. The waste heat recovery and utilization device for the low-load section of the unit according to claim 5, characterized in that: The front end of the first filter screen (6) is fixedly installed with a fixing shell (9), and a cleaning mechanism (10) is provided on one side of the fixing shell (9).

8. The waste heat recovery and utilization device for the low-load section of the unit according to claim 7, characterized in that: The cleaning mechanism (10) includes a rotating rod (1001) that extends through the interior of the fixed shell (9), and a locking block (1002) is fixedly installed at one end of the rotating rod (1001) inside the fixed shell (9), and a guide fan blade (1003) is fixedly installed on the outer wall of one end of the rotating rod (1001).

9. The waste heat recovery and utilization device for the low-load section of the unit according to claim 8, characterized in that: A fixing plate (1004) is fixedly installed on the outer wall of the rotating rod (1001) near the coarse filter screen (406), and a soft brush (1005) is embedded on the outer wall of the fixing plate (1004).

10. The waste heat recovery and utilization device for the low-load section of the unit according to claim 8, characterized in that: The rotating rod (1001) forms a rotating structure with the fixed shell (9) through the engaging block (1002), and the fixed shell (9) and the engaging block (1002) form an engaging structure.

Images