A high temperature waste water heat recovery device for preventing media backflow

Abstract

The utility model relates to heat exchange equipment technical field, and disclose a kind of high-temperature wastewater heat energy recovery device of preventing medium backflow, including shell, the top of shell is respectively penetrated with air inlet pipe and circulating pipe, the bottom of shell is penetrated with air outlet pipe, the bottom of shell is fixedly assembled with mounting seat, the inner wall of air inlet pipe is equipped with mounting groove, the inner wall of mounting groove is fixedly assembled with limit rod.The high-temperature wastewater heat energy recovery device of preventing medium backflow, by being set up shell, air inlet pipe, fixed base, return spring, lifting ring, air outlet pipe, limit rod, air inlet hole structure, so that the equipment in the operation process, using sealing plug to seal air inlet pipe, to ensure that air inlet pipe is always isolated with shell inside in heat exchange process, to avoid the situation that cold air and heated air leak and mix, and then improve the heat recovery effect and air tightness of the heat exchange treatment equipment.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and in particular to a high-temperature wastewater heat energy recovery device that prevents the backflow of the medium. Background Technology

[0002] A heat exchanger is a device that transfers part of the heat from a hot fluid to a cold fluid. It is also called a heat exchanger. Its main feature is heat transfer. There are many types of heat exchangers, which can be divided into: floating head heat exchangers, fixed tube sheet heat exchangers, U-tube sheet heat exchangers, plate heat exchangers, etc. In high-temperature wastewater treatment processes, heat exchangers are also used for heat recovery.

[0003] Existing heat exchangers, while capable of recovering heat energy from high-temperature wastewater into the refrigerant for heating purposes (e.g., heating cold air or cold water to generate steam), suffer from several drawbacks. Cold air expands due to thermal expansion, and cold water expands due to evaporation, causing increased pressure on the refrigerant upon entering the heat exchanger. This backflow not only reduces the efficiency of refrigerant transport and heat absorption but also increases the internal pressure of the transport pipelines, raising the risk of pipeline rupture. Therefore, this application provides a high-temperature wastewater heat energy recovery device to prevent refrigerant backflow and meet this requirement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-temperature wastewater heat energy recovery device to prevent the backflow of the medium, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A high-temperature wastewater heat energy recovery device for preventing medium backflow includes a housing. An air inlet pipe and a circulation pipe pass through the top of the housing, and an air outlet pipe passes through the bottom of the housing. A mounting base is fixedly installed at the bottom of the housing. An installation groove is formed on the inner wall of the air inlet pipe, and a limit rod is fixedly installed on the inner wall of the installation groove. A lifting ring is provided on the outer wall of the limit rod, and an air inlet is formed on the top of the lifting ring. A connecting rod is fixedly installed at the bottom of the lifting ring, and a sealing plug is fixedly installed at the bottom end of the connecting rod. A return spring abuts against the bottom of the lifting ring. A fixed seat is provided on the top of the housing, and a filter screen is provided on the top of the fixed seat. A connecting bolt is provided on the top of the filter screen, and a miniature air pump is provided on the top of the filter screen. A branch pipe is connected internally to the circulation pipe, and a support rod is fixedly installed on the outer wall of the branch pipe. An audible alarm is fixedly installed at the top of the support rod, and a warning light is provided on the top of the audible alarm. A diaphragm is provided on the inner wall of the branch pipe, and an electrode plate is fixedly installed on the outer wall of the diaphragm.

[0007] The top of the housing has a mounting hole, and the outer wall of the mounting base is fixedly assembled with the inner wall of the mounting hole. The mounting base is fixedly connected to the filter screen by connecting bolts. The outer wall of the micro air pump is provided with screws, and the micro air pump is fixedly connected to the filter screen by screws.

[0008] The number of connecting rods is four, and all four connecting rods are evenly distributed along the top of the sealing plug.

[0009] The circulation pipe is filled with high-temperature sewage, and the air intake pipe is filled with cold air.

[0010] The number of electrode plates is two, and both electrode plates are symmetrically distributed along the inner wall of the branch pipe.

[0011] The outer wall of the housing is fixedly equipped with a controller, which is electrically connected to the electrode plate, the audible alarm and the warning light respectively.

[0012] The inner wall of the branch pipe is fixedly fitted with a fixing plate, and the outer wall of the fixing plate is fixedly fitted with the outer wall of another electrode plate.

[0013] The top of the lifting ring has a through hole, and the inner wall of the through hole is provided with a sealing ring, and the inner wall of the sealing ring is slidably connected to the outer wall of the limiting rod.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] 1. In the above scheme, the structure of the shell, air inlet pipe, fixed base, return spring, lifting ring, air outlet pipe, limit rod, and air inlet hole allows the equipment to seal the air inlet pipe during operation using a sealing plug. This ensures that the air inlet pipe is always isolated from the inside of the shell during heat exchange, thereby preventing heat source backflow and insufficient sealing of the device after the heat source enters the device. This ensures the contact area between the sewage pipe and the heat source, thereby improving the heat recovery effect and airtightness of the heat exchange treatment equipment.

[0016] 2. In the above scheme, the diaphragm, electrode plates, warning lights, audible alarm, and support rod structure enable the equipment to reduce the pressure inside the sewage pipe and branch pipe when the sewage pipe is damaged during operation. This causes the diaphragm to deform and the two electrode plates to stick together. In conjunction with the controller, the audible alarm and warning lights are activated to alert the user, ensuring that the user can repair the equipment in a timely manner, thereby improving the intelligence of the equipment. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0018] Figure 1 A schematic diagram of a three-dimensional structure for a high-temperature wastewater heat energy recovery device to prevent media backflow;

[0019] Figure 2 A schematic diagram of the bottom structure of a high-temperature wastewater heat energy recovery device to prevent media backflow;

[0020] Figure 3 A side-section diagram of a high-temperature wastewater heat recovery device designed to prevent media backflow.

[0021] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 A schematic diagram of the diaphragm structure of a high-temperature wastewater heat energy recovery device to prevent media backflow.

[0023] [Figure Labels]

[0024] 1. Housing; 2. Air inlet pipe; 3. Mounting base; 4. Filter screen; 5. Miniature air pump; 6. Sewage pipe; 7. Mounting base; 8. Air outlet pipe; 9. Branch pipe; 10. Sealing plug; 11. Connecting rod; 12. Mounting groove; 13. Limiting rod; 14. Return spring; 15. Lifting ring; 16. Connecting bolt; 17. Air inlet; 18. Support rod; 19. Audible alarm; 20. Warning light; 21. Drum; 22. Electrode plate.

[0025] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0026] The following is a detailed description of a high-temperature wastewater heat energy recovery device for preventing medium backflow provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are listed as best and preferred embodiments; other alternative methods may be used by those skilled in the art. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0027] like Figure 1 and Figure 2As shown, an embodiment of this utility model provides a high-temperature wastewater heat energy recovery device to prevent medium backflow, including a shell 1. An air inlet pipe 2 and a circulation pipe 6 pass through the top of the shell 1, and an air outlet pipe 8 passes through the bottom of the shell 1. A mounting base 7 is fixedly mounted on the bottom of the shell 1. An installation groove 12 is formed on the inner wall of the air inlet pipe 2, and a limit rod 13 is fixedly mounted on the inner wall of the installation groove 12. A lifting ring 15 is provided on the outer wall of the limit rod 13. An air inlet hole 17 is formed on the top of the lifting ring 15, and a connecting rod 11 is fixedly mounted on the bottom of the lifting ring 15. A sealing plug 10 is fixedly mounted on the bottom end of the connecting rod 11. A return spring 14 abuts against the bottom of the lifting ring 15. A fixing seat 3 is provided on the top of the fixing seat 3, and a filter screen 4 is provided on the top of the filter screen 4. A connecting bolt 16 is provided on the top of the filter screen 4, and a miniature air pump 5 is provided on the top of the filter screen 4. A branch pipe 9 is connected inside the circulation pipe 6, and a support rod is fixedly mounted on the outer wall of the branch pipe 9. 18. A sound alarm 19 is fixedly mounted on the top of the support rod 18. A warning light 20 is provided on the top of the sound alarm 19. A diaphragm 21 is provided on the inner wall of the branch pipe 9. An electrode plate 22 is fixedly mounted on the outer wall of the diaphragm 21. Through the structure of the housing 1, air inlet pipe 2, fixed seat 3, filter screen 4, micro air pump 5, circulation pipe 6, mounting seat 7, air outlet pipe 8, branch pipe 9, and sealing plug 10, the equipment uses the air inlet pipe 2 to transport cold air during use. This allows the high-temperature sewage inside the circulation pipe 6 to come into contact with the cold air due to the transport of the circulation pipe 6, thereby achieving the effect of heat conversion and recovery. The spiral structure of the circulation pipe 6 increases the contact area between the cold air and the heat source. With the sealing plug 10 sealing the air inlet pipe 2, large-area heat loss is prevented, and backflow caused by hot air expansion is also avoided. This improves the heat recovery effect and airtightness of the heat exchange treatment equipment.

[0028] like Figure 1 and Figure 3 As shown, the top of the housing 1 has a mounting hole, and the outer wall of the mounting base 3 is fixedly assembled with the inner wall of the mounting hole. The mounting base 3 is fixedly connected to the filter screen 4 by connecting bolts 16. The outer wall of the micro air pump 5 is provided with screws, and the micro air pump 5 is fixedly connected to the filter screen 4 by screws. Through the structure of the mounting base 3, filter screen 4, and micro air pump 5, the user can disassemble and assemble the filter screen 4 and the micro air pump 5 by removing and installing screws and connecting bolts 16 during the use of the device. This facilitates the user's disassembly and maintenance of the device, thereby improving the user's maintenance efficiency.

[0029] like Figure 2 and Figure 4As shown, there are four connecting rods 11, and all four connecting rods 11 are evenly distributed along the top of the sealing plug 10. Through the structure of the connecting rods 11, air is delivered into the air inlet pipe 2 during the operation of the micro air pump 5, thereby increasing the air pressure inside the air inlet pipe 2. At this time, the increased air pressure will squeeze the sealing plug 10 out of the air inlet pipe 2, thereby achieving the effect of connecting the housing 1 and the inside of the air inlet pipe 2 to contact the heat source and complete the heat exchange operation, thus ensuring the normal operation of the equipment.

[0030] like Figure 3 and Figure 4 As shown, the circulation pipe 6 is filled with high-temperature sewage, and the air inlet pipe 2 is filled with cold air. Through the structure of the circulation pipe 6 and the air inlet pipe 2, the circulation pipe 6 is used to transport the high-temperature sewage, and the air inlet pipe 2 can transport the cold air, thereby achieving the effect of dual-channel transport of different media to complete the heat exchange operation, avoiding the mixing of the two media, and making it easier for users to classify and recycle the two media after the heat exchange operation.

[0031] like Figure 3 and Figure 5 As shown, there are two electrode plates 22, and both electrode plates 22 are symmetrically distributed along the inner wall of the branch pipe 9. Through the structure of the two electrode plates 22, when the circulation pipe 6 is damaged during operation, the internal pressure will decrease, which will cause the diaphragm 21 to deform and the two electrode plates 22 to stick together. Together with the audible alarm 19 and the warning light 20, the leakage alarm is completed, which alerts the user to inspect the equipment, thereby improving the intelligence of the equipment.

[0032] like Figure 4 and Figure 5 As shown, a controller is fixedly mounted on the outer wall of the housing 1, and the controller is electrically connected to the electrode plate 22, the audible alarm 19, and the warning light 20 respectively. Through the controller structure, when the two electrode plates 22 are in contact during operation, the device will emit an electrical signal to automatically control the warning light 20 and the audible alarm 19 to operate, thereby achieving the effect of warning the user and ensuring that the user can quickly detect equipment failure and perform timely maintenance.

[0033] like Figure 4 and Figure 5 As shown, a fixing plate is fixedly mounted on the inner wall of the branch pipe 9, and the outer wall of the fixing plate is fixedly mounted on the outer wall of another electrode plate 22. Through the fixed plate structure, when the internal pressure of the circulation pipe 6 changes, the diaphragm 21 will deform, causing the electrode plate 22 on its outer wall to come into contact with another electrode plate 22, while the fixing plate will not deform, so that the two electrode plates 22 can come into contact normally to complete the automatic alarm operation.

[0034] like Figure 1 and Figure 2 As shown, the top of the lifting ring 15 has a through hole, and the inner wall of the through hole is provided with a sealing ring. The inner wall of the sealing ring is slidably connected to the outer wall of the limiting rod 13. Through the sealing ring structure, when the lifting ring 15 is stationary, the sealing ring will tightly fit the limiting rod 13, thereby preventing the air inside the housing 1 from mixing and leaking with the air inside the air inlet pipe 2, and further improving the airtightness of the device.

[0035] The technical solution provided by this utility model allows the user to first transport high-temperature wastewater through the circulation pipe 6, and then fill the air inlet pipe 2 with cold air through the operation of the micro air pump 5. During the filling process, the air pressure inside the air inlet pipe 2 increases, causing the sealing plug 10 to move down and connect the inside of the air inlet pipe 2 with the inside of the shell 1, thereby allowing the cold air to come into contact with the heat source to complete the heat exchange operation. After the cold air is discharged, the air pressure decreases, and the sealing plug 10 re-seals the air inlet pipe 2, ensuring that the gas does not backflow or mix during the heat exchange process, thus improving the airtightness and heat recovery effect of the equipment during operation. If the circulation pipe 6 is damaged and high-temperature wastewater leaks, the pressure inside the circulation pipe 6 and the branch pipe 9 decreases, causing the diaphragm 21 to deform and the two electrode plates 22 to stick together. At this time, the controller will automatically operate the audible alarm 19 and the warning light 20 to achieve the effect of automatic alarm, thereby ensuring that the user can perform maintenance work on the equipment in a timely manner and improving the intelligence of the equipment.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-temperature wastewater heat energy recovery device for preventing medium backflow, characterized in that, The device includes a housing (1), with an air inlet pipe (2) and a circulation pipe (6) passing through its top. An air outlet pipe (8) passes through its bottom. A mounting base (7) is fixedly mounted on the bottom of the housing (1). An installation groove (12) is formed on the inner wall of the air inlet pipe (2). A limit rod (13) is fixedly mounted on the inner wall of the installation groove (12). A lifting ring (15) is provided on the outer wall of the limit rod (13). An air inlet hole (17) is formed on the top of the lifting ring (15). A connecting rod (11) is fixedly mounted on the bottom of the lifting ring (15). A sealing plug (10) is fixedly mounted on the bottom end of the connecting rod (11). The bottom of the housing (1) is abutted by a return spring (14). The top of the housing (1) is provided with a fixed seat (3). The top of the fixed seat (3) is provided with a filter screen (4). The top of the filter screen (4) is provided with a connecting bolt (16). The top of the filter screen (4) is provided with a miniature air pump (5). The inside of the circulation pipe (6) is connected to a branch pipe (9). The outer wall of the branch pipe (9) is fixedly fitted with a support rod (18). The top of the support rod (18) is fixedly fitted with a sound alarm (19). The top of the sound alarm (19) is provided with a warning light (20). The inner wall of the branch pipe (9) is provided with a diaphragm (21). The outer wall of the diaphragm (21) is fixedly fitted with an electrode plate (22).

2. The high-temperature wastewater heat energy recovery device for preventing medium backflow according to claim 1, characterized in that, The top of the housing (1) is provided with an installation hole, and the outer wall of the fixing seat (3) is fixedly assembled with the inner wall of the installation hole. The fixing seat (3) is fixedly connected to the filter screen (4) by connecting bolts (16). The outer wall of the micro air pump (5) is provided with screws, and the micro air pump (5) is fixedly connected to the filter screen (4) by screws.

3. The high-temperature wastewater heat energy recovery device for preventing medium backflow according to claim 1, characterized in that, The number of connecting rods (11) is four, and the four connecting rods (11) are evenly distributed along the top of the sealing plug (10).

4. The high-temperature wastewater heat energy recovery device for preventing medium backflow according to claim 1, characterized in that, The circulation pipe (6) is filled with high-temperature sewage, and the air inlet pipe (2) is filled with cold air.

5. The high-temperature wastewater heat energy recovery device for preventing medium backflow according to claim 1, characterized in that, The number of electrode plates (22) is two, and both electrode plates (22) are symmetrically distributed along the inner wall of the branch pipe (9).

6. The high-temperature wastewater heat energy recovery device for preventing medium backflow according to claim 1, characterized in that, The outer wall of the housing (1) is fixedly equipped with a controller, which is electrically connected to the electrode plate (22), the audible alarm (19) and the warning light (20).

7. The high-temperature wastewater heat energy recovery device for preventing medium backflow according to claim 1, characterized in that, The inner wall of the branch pipe (9) is fixedly fitted with a fixing plate, and the outer wall of the fixing plate is fixedly fitted with the outer wall of another electrode plate (22).

8. The high-temperature wastewater heat energy recovery device for preventing medium backflow according to claim 1, characterized in that, The top of the lifting ring (15) is provided with a through hole, and the inner wall of the through hole is provided with a sealing ring, and the inner wall of the sealing ring is slidably connected to the outer wall of the limiting rod (13).

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