A deaerator exhaust energy recuperator

Abstract

The utility model belongs to the exhaust steam energy collection technical field especially relates to a deaerator exhaust steam energy collector, include: heat exchange box, the inner side wall one end of heat exchange box is connected with a plurality of first fixed plate fixedly, the inner side wall other end of heat exchange box is connected with a plurality of second fixed plate fixedly, and the first fixed plate and second fixed plate all arrange distribution from top to bottom, the side wall of first fixed plate is connected with first pipe fixedly, the side wall of second fixed plate is connected with second pipe fixedly, be provided with the heat exchange pipe for the refrigerant of going in between first pipe and second pipe, the outer side wall of second pipe is rotatably set up and is used for the mounting ring of first pipe and second pipe butt joint fixed, the outer side wall of heat exchange box still detachable connection has installation frame, the installation frame is used for with another group heat exchange box's outer side wall detachable connection, compared with the prior art, the utility model passes through the design of modularization, improved the use range of energy collector, increased the working efficiency of energy collector.

Description

Technical Field

[0001] This utility model belongs to the field of exhaust steam energy recovery technology, and in particular relates to a deaerator exhaust steam energy recovery device. Background Technology

[0002] A deaerator is a device specifically designed to remove dissolved oxygen, carbon dioxide, and other gases from liquids. Its core function is to prevent corrosion of thermal equipment, improve system efficiency, and ensure the safe operation of the unit. During operation, the deaerator will discharge waste gas containing residual heat. Direct discharge would not only waste energy, but by using a steam energy recovery device, the heat in the waste gas is transferred to the cooling water through heat exchange technology, and then the gas enters the deaerator or other thermal systems to achieve energy recycling.

[0003] Chinese patent publication number 202421113354.2 discloses a deaerator exhaust energy recovery device, which includes: a support plate fixedly connected to the upper surface of the bottom shell, a top shell fixedly connected to the upper surface of the support plate, a diversion pipe fixedly connected to the upper surface of the bottom shell, a placement pipe fixedly connected to the upper end of the diversion pipe, a bottom cover threadedly connected to the lower end of the placement pipe, a support rod fixedly connected to the lower bottom wall of the bottom cover, a filter cartridge fixedly connected to the upper end of the support rod, the upper end of the placement pipe fixedly connected to the lower surface of the top shell, an mounting plate fixedly connected to the side surface of the top shell, a circulation pump fixedly connected to the upper surface of the mounting plate, circulation pipes connected to both the output and input ends of the circulation pump, an output pipe fixedly connected to the side surface of the top shell, an input pipe fixedly connected to the side surface of the bottom shell, and valves provided on the side surfaces of both the input and output pipes. This device helps to avoid pipe blockage or equipment failure during the recovery process, which could affect the recovery effect.

[0004] However, existing technologies have the following problems when used: Currently, most deaerator exhaust steam energy recovery units adopt an integrated fixed structure, and the heat exchange area and processing capacity are not adjustable. When the heat medium flow rate is small, the heat exchange channel of the integrated equipment has low utilization rate, resulting in energy waste and equipment idleness. When the heat medium flow rate increases, the heat exchange capacity of a single unit is insufficient, which cannot meet the waste heat recovery needs of large flow exhaust steam. There is a lack of modular design that allows for flexible adjustment of equipment scale according to heat medium flow rate. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a deaerator exhaust steam energy recovery device, comprising: A heat exchange box, wherein multiple first fixing plates are fixedly connected to one end of the inner sidewall of the heat exchange box, and multiple second fixing plates are fixedly connected to the other end of the inner sidewall of the heat exchange box, and the first fixing plates and the second fixing plates are arranged from top to bottom. A first conduit is fixedly connected to the sidewall of the first fixing plate, and a second conduit is fixedly connected to the sidewall of the second fixing plate. A heat exchange tube for introducing refrigerant is provided between the first conduit and the second conduit. An installation ring for docking and fixing the first conduit and the second conduit is rotatably provided on the outer sidewall of the heat exchange box. An installation frame is also detachably connected to the outer sidewall of another set of heat exchange boxes. Two sets of isolation plates are detachably installed at the end opening of the heat exchange box. When the heat exchange box is used independently, the isolation plates are sealed to the end of the heat exchange box. When multiple sets of heat exchange boxes are used in combination, the isolation plates at the docking ends of the two adjacent sets of heat exchange boxes are removed, and the multiple sets of heat exchange boxes are fixed and connected with the mounting frame.

[0006] Furthermore, the heat exchange tubes are arranged in a spiral shape inside the heat exchange box.

[0007] Furthermore, threaded grooves are provided on the sidewall of the first conduit and the inner sidewall of the mounting ring, and the first conduit and the mounting ring are connected by threads through the threaded grooves.

[0008] Furthermore, the lower end of the side wall of the heat exchange box is connected to a steam inlet pipe for introducing heat medium, and a sealing plug is provided at one end of the steam inlet pipe.

[0009] Furthermore, a steam exhaust pipe for discharging the heat medium is fixedly connected to one end of the top of the heat exchange box.

[0010] Furthermore, a sealing ring is fixedly connected to one side wall of the mounting frame, and the mounting frame is detachably connected to another set of mounting frames by bolts.

[0011] Furthermore, threaded holes are provided at both the upper and lower ends of the side wall of the heat exchange box.

[0012] Furthermore, a fixing screw is provided through the other side wall of the isolation plate, and the fixing screw is threadedly connected to the threaded hole.

[0013] Furthermore, positioning holes are provided on the side of the two sets of isolation plates that are close to each other, and the positioning holes are matched with the second conduit and the first conduit.

[0014] Compared with the prior art, the deaerator exhaust steam energy recovery device of this utility model has the following advantages: The modular design, consisting of a mounting frame on the outer wall of the heat exchanger and a detachable end baffle, allows for flexible adjustment of the number of heat exchangers based on the heat medium flow rate. When the heat medium flow rate is low, a single heat exchanger operates independently, fully utilizing the heat exchange channels and avoiding energy waste and idleness caused by insufficient utilization of the integrated equipment. When the heat medium flow rate increases, the baffles at the docking ends of adjacent heat exchangers can be removed, and multiple sets of equipment can be quickly fixed and connected to the internal cavity via the mounting frame, significantly expanding the heat exchange area and processing capacity to meet the waste heat recovery requirements of large-flow exhaust steam. This modular design enhances the applicability of the energy recovery unit.

[0015] In the modular combination mode, spiral heat exchange tubes are used, and even after multiple sets of equipment are connected, full contact between the heat medium and the cold medium can still be guaranteed. This expands the processing capacity while maintaining heat exchange efficiency and increases the working efficiency of the energy harvester. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is an exploded view of the heat exchanger box of this utility model; Figure 4 This is a cross-sectional view of the heat exchanger box of this utility model.

[0017] The markings in the diagram are as follows: 100. Heat exchanger box; 110. First fixed plate; 111. Second fixed plate; 120. First conduit; 121. Threaded groove; 130. Heat exchange tube; 140. Second conduit; 141. Mounting ring; 150. Steam inlet pipe; 151. Sealing plug; 160. Mounting frame; 161. Steam outlet pipe; 162. Sealing ring; 170. Threaded hole; 200. Isolation plate; 220. Fixing screw; 230. Positioning hole. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0019] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] like Figures 1-4 As shown, a deaerator exhaust steam energy recovery device includes: A heat exchange box 100 has multiple first fixing plates 110 fixedly connected to one end of its inner sidewall, and multiple second fixing plates 111 fixedly connected to the other end of its inner sidewall. The first fixing plates 110 and the second fixing plates 111 are arranged from top to bottom. A first conduit 120 is fixedly connected to the sidewall of the first fixing plate 110, and a second conduit 140 is fixedly connected to the sidewall of the second fixing plate 111. A heat exchange pipe 130 for introducing refrigerant is provided between the first conduit 120 and the second conduit 140. An installation ring 141 is rotatably provided on the outer sidewall of the second conduit 140 for docking and fixing the first conduit 120 and the second conduit 140. The outer sidewall of the heat exchange box 100 can also be detachably connected to an installation frame 160, which is used for detachable connection to the outer sidewall of another set of heat exchange boxes 100. Two sets of isolation plates 200 are detachably installed at the end opening of the heat exchange box 100. When the heat exchange box 100 is used independently, the isolation plates 200 are sealed to the end of the heat exchange box 100. When multiple sets of heat exchange boxes 100 are used in combination, the isolation plates 200 at the docking ends of the two adjacent sets of heat exchange boxes 100 are removed, and the multiple sets of heat exchange boxes 100 are fixed and connected in conjunction with the mounting frame 160.

[0023] As a preferred example of this utility model, the first fixing plate 110 and the second fixing plate 111 on the inner wall of the heat exchange box 100 are arranged vertically, providing an installation reference for the first conduit 120 and the second conduit 140 and supporting the heat exchange tube 130. The first conduit 120, the second conduit 140, and the heat exchange tube 130 together form a closed refrigerant flow channel. When the deaerator exhaust steam enters the inner cavity of the heat exchange box 100, it can efficiently exchange heat with the refrigerant in the heat exchange tube 130, realizing the recovery and reuse of exhaust steam waste heat. The mounting ring 141 on the outer wall can be rotated to connect and fix the first conduit 120 and the second conduit 140. Specifically, the mounting ring 141 is rotatably connected to the first conduit 120 through a bearing. The inner side of the mounting ring 141 is threaded and threadedly connected to the second conduit 140, and a sealing ring is provided on the inner side of the mounting ring 141. The mounting frame 160 on the outside of the heat exchange box 100 and the end isolation plate 200 form an adaptive structure. When the equipment is used independently, the isolation plate 200 is sealed and fitted to the end of the heat exchange box 100, which can meet the energy recovery requirements of small flow exhaust steam. When the operating conditions are demanded, the isolation plates 200 at the docking ends of two adjacent sets of heat exchange boxes 100 can be removed, and multiple sets of equipment can be fixed and connected to the inner cavity through the mounting frame 160. Specifically, the mounting frame 160 can be detachably connected to the heat exchange box 100 by bolts to expand the heat exchange area and processing capacity, and adapt to exhaust steam treatment scenarios of different scales.

[0024] In the example of this application, the heat exchange tube 130 is arranged in a spiral shape inside the heat exchange box 100.

[0025] As a preferred example of this utility model, the heat exchange tube 130 is arranged in a spiral structure inside the heat exchange box 100, which increases the contact area between the tube wall of the heat exchange tube 130 and the heat medium, prolongs the contact time between the heat medium and the refrigerant inside the heat exchange tube 130, and allows the heat energy in the heat medium to be fully transferred to the refrigerant, thereby improving the heat exchange efficiency.

[0026] In the example of this application, the sidewall of the first conduit 120 and the inner sidewall of the mounting ring 141 are both provided with threaded grooves 121. The first conduit 120 and the mounting ring 141 are threadedly connected through the threaded grooves 121. The end of the second conduit 140 is provided with a corrugated pipe structure.

[0027] As a preferred example of this utility model, the sidewall of the first conduit 120 and the inner sidewall of the mounting ring 141 are both provided with matching threaded grooves 121. Through the threaded connection of the threaded grooves 121, the first conduit 120 and the second conduit 140 can be docked and firmly fixed, simplifying the assembly process between the conduits, shortening the installation time, and improving the assembly efficiency. The corrugated pipe structure at the end of the second conduit 140 can complete the installation docking of the first conduit 120 and the second conduit 140 before the two mounting frames 160 are docked, and then the two mounting frames 160 are merged to complete the fixation of the two mounting frames 160, which is convenient for installation.

[0028] In the example of this application, the lower end of the side wall of the heat exchange box 100 is connected to a steam inlet pipe 150 for introducing heat medium, and a sealing plug 151 is provided at one end of the steam inlet pipe 150.

[0029] As a preferred example of this utility model, the steam inlet pipe 150 connected to the lower end of the side wall of the heat exchange box 100 provides an inlet channel for the deaerator exhaust steam, ensuring that the heat medium can enter the inner cavity of the heat exchange box 100 and contact the heat exchange tube 130 for heat exchange, thus ensuring the continuity and stability of the heat exchange process; the sealing plug 151 provided at one end of the steam inlet pipe 150 can seal the opening of the steam inlet pipe 150 when the equipment is shut down, under maintenance or temporarily not in use.

[0030] In the example of this application, the top end of the heat exchange box 100 is fixedly connected to an exhaust pipe 161 for discharging the heat medium.

[0031] As a preferred example of this utility model, the exhaust pipe 161 fixedly connected to one end of the top of the heat exchange box 100 provides a directional discharge channel for the heat medium that has released some energy after heat exchange, and can export the heat medium after heat exchange from the heat exchange box 100.

[0032] In the example of this application, a sealing ring 162 is fixedly connected to one side wall of the mounting frame 160, and the mounting frame 160 is detachably connected to another set of mounting frames 160 by bolts.

[0033] As a preferred example of this utility model, the sealing ring 162 fixedly connected to one side wall of the mounting frame 160 can fill the gap between two sets of mounting frames 160 when multiple sets of heat exchange boxes 100 are connected through the mounting frame 160, enhance the sealing performance of the connection point, prevent the heat medium or cold medium from leaking from the connection point, and ensure the heat exchange efficiency and operational safety of the combined heat exchange system.

[0034] In the example of this application, threaded holes 170 are provided at both the upper and lower ends of the side wall of the heat exchange box 100, and a fixing screw 220 is provided through the other side wall of the isolation plate 200, and the fixing screw 220 is threadedly connected to the threaded hole 170.

[0035] As a preferred example of this utility model, by providing a fixing screw 220 on the other side wall of the isolation plate 200, the connection between the isolation plate 200 and the heat exchange box 100 can be achieved by threading the fixing screw 220 with the threaded hole 170. Specifically, a sealing ring is provided on one side of the isolation plate 200 to ensure the installation firmness of the isolation plate 200 and the sealing reliability of the connection with the heat exchange box 100.

[0036] In the example of this application, a positioning hole 230 is provided on the side of the two sets of isolation plates 200 that are close to each other, and the positioning hole 230 matches the second conduit 140 and the first conduit 120.

[0037] As a preferred example of this utility model, the positioning holes 230 opened on the side of the two sets of isolation plates 200 that are close to each other match the outer dimensions of the second conduit 140 and the first conduit 120. When the isolation plate 200 is installed, the positioning holes 230 can fit into the ends of the second conduit 140 and the first conduit 120. On the one hand, it plays an auxiliary positioning and support role for the first conduit 120 and the second conduit 140, ensuring the coaxiality and positional accuracy of the two conduits after installation, and avoiding the connection sealing and heat exchange effect of the heat exchange tube 130 due to conduit misalignment. In addition, in order to ensure sealing, a sealing gasket can be set between the two conduits and the positioning holes 230.

[0038] In practical use, the refrigerant enters through the first conduit 120 of a heat exchange box 100, flows through the heat exchange tube 130 to the second conduit 140 of the same heat exchange box 100, and the first conduit 120 of another heat exchange box 100 can be fixedly connected to the second conduit 140 of the adjacent heat exchange box 100 by a mounting ring 141 on the outer wall of the second conduit 140 and a threaded groove 121 on the side wall of both conduits. The first conduit 120 and the second conduit 140 in each heat exchange box 100 are fixedly supported by a first fixing plate 110 and a second fixing plate 111 arranged vertically on the inner side wall of the heat exchange box 100, respectively. The heat exchange tube 130 is arranged in a spiral shape in the inner cavity of the heat exchange box 100. The deaerator exhaust steam enters the inner cavity of the heat exchange box 100 through the steam inlet pipe 150 at the lower end of the side wall of the heat exchange box 100. The sealing plug 151 at one end of the steam inlet pipe 150 is closed when not in use. Inside the heat exchange box 100, the refrigerant comes into contact with the spiral heat exchange tube 130 and completes the heat exchange with the refrigerant inside the tube. Then, it is discharged from the exhaust pipe 161 at one end of the top of the heat exchange box 100. When the equipment is used independently, the two sets of isolation plates 200 are fixed to the heat exchange box 100 by fixing screws 220 and threaded holes 170. The positioning holes 230 on the side of the isolation plates 200 that are close to each other cooperate with the first conduit 120 and the second conduit 140 to achieve the sealing of the end of the heat exchange box 100. When multiple sets of equipment are used in combination, the isolation plates 200 at the docking ends of the two adjacent sets of heat exchange boxes 100 are removed and docked through the mounting frames 160 on the outer side wall of the heat exchange box 100. The sealing ring 162 on one side wall of the mounting frame 160 ensures the sealing at the docking point. Then, the two sets of mounting frames 160 are fixed by bolts to make the inner cavities of the multiple sets of heat exchange boxes 100 connected. The refrigerant and heat medium complete the corresponding flow and heat exchange in the connected channels.

[0039] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A deaerator exhaust steam energy recovery device, characterized in that, include: A heat exchange box (100) has multiple first fixing plates (110) fixedly connected to one end of its inner sidewall, and multiple second fixing plates (111) fixedly connected to the other end of its inner sidewall. The first fixing plates (110) and the second fixing plates (111) are arranged from top to bottom. A first conduit (120) is fixedly connected to the sidewall of the first fixing plate (110), and a second conduit is fixedly connected to the sidewall of the second fixing plate (111). (140), a heat exchange tube (130) for introducing refrigerant is provided between the first conduit (120) and the second conduit (140). An installation ring (141) for docking and fixing the first conduit (120) and the second conduit (140) is rotatably provided on the outer wall of the second conduit (140). An installation frame (160) can also be detachably connected to the outer wall of another set of heat exchange boxes (100). The installation frame (160) is used to detachably connect to the outer wall of another set of heat exchange boxes (100). An isolation plate (200) is detachably installed at the end opening of the heat exchange box (100).

2. The deaerator exhaust steam energy recovery device according to claim 1, characterized in that, The heat exchange tube (130) is spirally arranged inside the heat exchange box (100).

3. The deaerator exhaust steam energy recovery device according to claim 1, characterized in that, The first conduit (120) and the inner sidewall of the mounting ring (141) are both provided with threaded grooves (121). The first conduit (120) and the mounting ring (141) are threadedly connected through the threaded grooves (121). The end of the second conduit (140) is provided with a corrugated pipe structure.

4. A deaerator exhaust steam energy recovery device according to claim 1, characterized in that, The lower end of the side wall of the heat exchange box (100) is connected to a steam inlet pipe (150) for introducing heat medium, and a sealing plug (151) is provided at one end of the steam inlet pipe (150).

5. A deaerator exhaust steam energy recovery device according to claim 1, characterized in that, The top end of the heat exchange box (100) is fixedly connected to an exhaust pipe (161) for discharging heat medium.

6. A deaerator exhaust steam energy recovery device according to claim 1, characterized in that, A sealing ring (162) is fixedly connected to one side wall of the mounting frame (160), and the mounting frame (160) is detachably connected to another set of mounting frames (160) by bolts.

7. A deaerator exhaust steam energy recovery device according to claim 1, characterized in that, The heat exchange box (100) has threaded holes (170) at both the upper and lower ends of its side wall.

8. A deaerator exhaust steam energy recovery device according to claim 7, characterized in that, A fixing screw (220) is provided through the other side wall of the isolation plate (200), and the fixing screw (220) is threadedly connected to the threaded hole (170).

9. A deaerator exhaust steam energy recovery device according to claim 1, characterized in that, The two sets of isolation plates (200) have positioning holes (230) on their adjacent sides, and the positioning holes (230) are matched with the second conduit (140) and the first conduit (120).

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