Ammonia supplementing device for heat supply heat exchanger based on pressure maintaining closed connection

Abstract

The utility model discloses an ammonia supplementing device for a heat supply heat exchanger based on pressure maintaining closed connection, and relates to the technical field of ammonia supplementing for heat supply heat exchangers. A driving mechanism is arranged at the bottom of the device body, the top of the driving mechanism is connected with a flow guide mechanism, the flow guide mechanism comprises a first flow guide shaft, the first flow guide shaft is located in a flow guide pipe, a sealing pipe is arranged at the left end of the flow guide pipe, and a flow meter and a first pressure detection valve are installed at the top of the sealing pipe. The left end of the shunt pipe is connected with a heat exchanger body pipeline. Through the arrangement of the flow guide mechanism, when the driving mechanism drives a first flow guide shaft in the flow guide mechanism to rotate, liquid ammonia in the device main body is conveyed into the sealing pipe through the flow guide pipe, so that the sealing pipe conveys the liquid ammonia into the heat exchanger body through the flow dividing pipe; and the first flow guide shaft can block the interior of the flow guide pipe, so that the problem that liquid ammonia in the flow dividing pipe flows back is avoided.

Description

Technical Field

[0001] This utility model relates to the field of ammonia replenishment technology for heating heat exchangers, specifically to an ammonia replenishment device for heating heat exchangers based on a pressure-sealed connection. Background Technology

[0002] Ammonia replenishment devices for heating heat exchangers are used to replenish the ammonia refrigerant in the heat exchanger and prevent ammonia leakage. However, existing ammonia replenishment devices for heating heat exchangers have some shortcomings, such as:

[0003] Existing ammonia replenishment devices for heating heat exchangers may experience backflow of gaseous or liquid ammonia when replenishing the heat exchanger. This backflow of ammonia gas or liquid may affect the ammonia replenishment device, potentially leading to pressure instability or leakage.

[0004] Therefore, we propose an ammonia replenishment device for a heat exchanger based on a pressure-holding closed connection to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide an ammonia replenishment device for a heat exchanger based on a pressure-sealed connection, in order to solve the problem of ammonia gas-liquid backflow that is common in current ammonia replenishment devices for heat exchangers on the market, as mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ammonia replenishment device for a heat exchanger based on a pressure-sealed connection, comprising a device body and a heat exchanger body at the right end of the device body, wherein a guide pipe is provided at the right end of the device body;

[0007] The device body has a drive mechanism at the bottom and the top of the drive mechanism is connected to the flow guiding mechanism. The flow guiding mechanism includes a first flow guiding shaft located inside the flow guiding pipe. The left end of the flow guiding pipe has a sealing pipe and a flow meter and a first pressure detection valve are installed on the top of the sealing pipe. The left end of the sealing pipe is connected to a diversion pipe and the left end of the diversion pipe is connected to the heat exchanger body pipe. The top of the device body has a second pressure detection valve.

[0008] By setting up a flow guiding mechanism, when the drive mechanism drives the first flow guiding shaft in the flow guiding mechanism to rotate, the liquid ammonia inside the main body of the device is transferred to the sealing tube through the flow guiding pipe. This allows the sealing tube to transfer the liquid ammonia to the heat exchanger body through the distribution pipe. When the drive mechanism stops running, the first flow guiding shaft will block the inside of the flow guiding pipe, thereby preventing the liquid ammonia inside the distribution pipe from flowing back. This makes the connection between the device and the heat exchanger body more stable.

[0009] As a preferred technical solution of this utility model, sealing flanges are provided at both ends of the sealing tube, and the sealing tube is connected to the guide tube and the diversion tube through the sealing flanges. In addition, the top of the main body of the device is provided with a liquid inlet pipe and an air inlet pipe.

[0010] The above technical solution enables the sealing pipe to be more stable when connected to the guide pipe or the branch pipe, thereby increasing the sealing performance of the equipment when connecting pipes.

[0011] As a preferred technical solution of this utility model, the guide tube is fixedly connected to the main body of the device, and the bottom of the main body of the device is connected to the drive mechanism. The drive mechanism includes a drive motor, a first sprocket is connected to the top of the drive motor, a first chain is engaged on the outside of the first sprocket, and a second sprocket is engaged on the left end of the first chain. Both the first sprocket and the second sprocket are provided with ratchet groups on their tops.

[0012] The above technical solution enables the drive mechanism to operate more stably when driving the flow guiding mechanism or stirring rod, thereby increasing the stability of the equipment during operation.

[0013] As a preferred embodiment of the present invention, the bottom of the second sprocket is fixed by a bearing seat, and the ratchet assembly includes a first ratchet, with a second ratchet meshing with the top of the first ratchet. A spring shaft is installed on the top of the second ratchet, and the ratchet assembly on the top of the first sprocket and the ratchet assembly on the top of the second sprocket face opposite directions.

[0014] The above technical solution enables the drive mechanism to operate more stably when driving the first guide shaft or stirring rod, thereby increasing the controllability of the equipment during use.

[0015] As a preferred technical solution of this utility model, the top of the second sprocket is connected to the fixing rod through a ratchet assembly, and the top of the fixing rod is connected to the first guide shaft, and the outer side of the first guide shaft is attached to the inside of the guide tube.

[0016] The above technical solution enables the second sprocket to be more stable when connected to the first guide shaft, thereby increasing the stability of the device during operation.

[0017] As a preferred embodiment of this utility model, the top of the first sprocket is connected to the third sprocket via a ratchet assembly, and the top of the third sprocket is provided with a stirring rod, which is located at the top of the main body of the device. A second chain is provided on the outside of the third sprocket, and the right end of the second chain is engaged with a fourth sprocket. The top of the fourth sprocket is provided with a drive shaft, the top of the drive shaft is connected to a first bevel gear, and the front end of the first bevel gear is engaged with a second bevel gear. The front end of the second bevel gear is engaged with an auger shaft, which is located inside the liquid inlet pipe.

[0018] The above technical solution enables the auger shaft to seal the inside of the liquid inlet pipe when it stops rotating, thereby preventing leakage.

[0019] As a preferred technical solution of this utility model, a third bevel gear is engaged at the top of the drive shaft, and a fourth bevel gear is engaged at the front end of the third bevel gear. The front end of the fourth bevel gear is connected to a second guide shaft, which is located inside the intake pipe.

[0020] The above technical solution enables the second guide shaft to block the intake pipe when it stops rotating, thereby increasing the sealing performance of the main body of the device.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the flow guiding mechanism, when the drive mechanism drives the first flow guiding shaft in the flow guiding mechanism to rotate, the liquid ammonia inside the main body of the device is transferred to the sealing tube through the flow guiding pipe, so that the sealing tube transfers the liquid ammonia to the heat exchanger body through the diversion pipe. When the drive mechanism stops running, the first flow guiding shaft will block the inside of the flow guiding pipe, thereby avoiding the problem of backflow of liquid ammonia inside the diversion pipe, making the device more stable when connected to the heat exchanger body.

[0022] Furthermore, the ratchet assembly makes the drive mechanism more stable when driving the first guide shaft or stirring rod, thereby increasing the controllability of the equipment during use.

[0023] Furthermore, by installing an auger shaft inside the inlet pipe, the auger shaft can seal the inside of the inlet pipe when it stops rotating, thereby preventing leakage. Attached Figure Description

[0024] Figure 1 This is a front view elevation diagram of the present utility model;

[0025] Figure 2 This is a three-dimensional structural schematic diagram of the front cross-section of this utility model;

[0026] Figure 3 This is a three-dimensional structural schematic diagram of the side cross-section of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the drive mechanism of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the flow guiding mechanism of this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the rotating rod of this utility model;

[0030] Figure 7 This is a three-dimensional structural diagram of the drive rod of this utility model.

[0031] In the diagram: 1. Main body of the device; 2. Guide pipe; 3. Sealing pipe; 4. Sealing flange; 5. Flow meter; 6. First pressure detection valve; 7. Diverter pipe; 8. Heat exchanger body; 9. Drive motor; 10. First sprocket; 11. First chain; 12. Second sprocket; 13. First ratchet; 14. Second ratchet; 15. Spring shaft; 16. Fixed rod; 17. First guide shaft; 18. Third sprocket; 19. Second chain; 20. Fourth sprocket; 21. Stirring rod; 22. Drive shaft; 23. First bevel gear; 24. Second bevel gear; 25. Screw shaft; 26. Liquid inlet pipe; 27. Third bevel gear; 28. Fourth bevel gear; 29. ​​Second guide shaft; 30. Air inlet pipe; 31. Second pressure detection valve. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] To address the backflow problem that easily occurs when processing liquid or gaseous ammonia in existing technologies, the following solution is disclosed. Please refer to [link / reference]. Figures 1-7 This utility model provides a technical solution: an ammonia replenishment device for a heat exchanger based on a pressure-sealed connection, comprising a device body 1 and a heat exchanger body 8 at the right end of the device body 1, wherein a guide pipe 2 is provided at the right end of the device body 1.

[0034] The device body 1 has a drive mechanism at the bottom and the top of the drive mechanism is connected to the flow guiding mechanism. The flow guiding mechanism includes a first flow guiding shaft 17, which is located inside the flow guiding pipe 2. The left end of the flow guiding pipe 2 has a sealing pipe 3, and the top of the sealing pipe 3 is equipped with a flow meter 5 and a first pressure detection valve 6. The left end of the sealing pipe 3 is connected to a diversion pipe 7, and the left end of the diversion pipe 7 is connected to the heat exchanger body 8 pipe. The top of the device body 1 has a second pressure detection valve 31.

[0035] The sealing pipe 3 is provided with sealing flanges 4 at both ends, and the sealing pipe 3 is connected to the guide pipe 2 and the diversion pipe 7 through the sealing flanges 4. The main body 1 of the device is provided with liquid inlet pipe 26 and air inlet pipe 30 at the top.

[0036] The guide pipe 2 is fixedly connected to the device body 1, and the bottom of the device body 1 is connected to the drive mechanism. The drive mechanism includes a drive motor 9. The top of the drive motor 9 is connected to a first sprocket 10, and a first chain 11 is engaged on the outside of the first sprocket 10. A second sprocket 12 is engaged on the left end of the first chain 11. Both the first sprocket 10 and the second sprocket 12 are provided with ratchet groups at their tops.

[0037] The bottom of the second sprocket 12 is fixed by a bearing seat, and the ratchet assembly includes a first ratchet 13, and the top of the first ratchet 13 is engaged with a second ratchet 14. A spring shaft 15 is mounted on the top of the second ratchet 14, and the ratchet assembly on the top of the first sprocket 10 and the ratchet assembly on the top of the second sprocket 12 face opposite directions.

[0038] The top of the second sprocket 12 is connected to the fixing rod 16 via a ratchet assembly, and the top of the fixing rod 16 is connected to the first guide shaft 17, with the outer side of the first guide shaft 17 fitting against the inside of the guide tube 2.

[0039] The top of the first sprocket 10 is connected to the third sprocket 18 via a ratchet assembly. The top of the third sprocket 18 is provided with a stirring rod 21, which is located at the top of the main body 1 of the device. The outer side of the third sprocket 18 is provided with a second chain 19, and the right end of the second chain 19 is engaged with a fourth sprocket 20. The top of the fourth sprocket 20 is provided with a drive shaft 22. The top of the drive shaft 22 is connected to a first bevel gear 23, and the front end of the first bevel gear 23 is engaged with a second bevel gear 24. The front end of the second bevel gear 24 is engaged with an auger shaft 25, which is located inside the liquid inlet pipe 26.

[0040] The top of the drive shaft 22 is engaged with a third bevel gear 27, and the front end of the third bevel gear 27 is engaged with a fourth bevel gear 28. The front end of the fourth bevel gear 28 is connected to a second guide shaft 29, which is located inside the intake pipe 30.

[0041] Working principle: When using this ammonia replenishment device for a heat exchanger based on pressure-holding and sealed connection, the device power supply and grid are connected first. Then, ammonia gas and liquid are transferred to the device body 1. Subsequently, the drive mechanism drives the flow guiding mechanism to run, thereby causing the first flow guiding shaft 17 to rotate. When the first flow guiding shaft 17 rotates, the seal inside the flow guiding pipe 2 will open, allowing the ammonia gas and liquid to be transferred to the sealed pipe 3 under the drive of the first flow guiding shaft 17. At the same time, the flow meter 5 and the first pressure detection valve 6 at the top of the sealed pipe 3 will also start to detect the flow rate and pressure. Then, the ammonia gas and liquid are transferred to the diversion pipe 7, which diverts the ammonia gas and liquid into small streams and transfers them to the heat exchanger body 8. At the same time, the second pressure detection valve 31 will also monitor the pressure intensity inside the device body 1. When the first flow guiding shaft 17 stops rotating, the inside of the flow guiding pipe 2 will be resealed, thereby avoiding the problem of backflow and leakage.

[0042] When the drive mechanism rotates in the reverse direction, the drive motor 9 will drive the first sprocket 10 to rotate in the reverse direction, thereby causing the first sprocket 10 to drive the second sprocket 12 to rotate in the reverse direction through the first chain 11. This causes the ratchet group at the top of the second sprocket 12 to engage, that is, the first ratchet 13 and the second ratchet 14 engage. The second ratchet 14 will then drive the fixed rod 16 to rotate through the spring shaft 15. Since the ratchet group at the top of the first sprocket 10 and the ratchet group at the top of the second ratchet 14 face opposite directions, the ratchet group at the top of the first sprocket 10 will disengage, that is, the first ratchet 13 and the second ratchet 14 will disengage. The second ratchet 14 will also retract under the drive of the spring shaft 15.

[0043] When the drive mechanism rotates in the forward direction, the first sprocket 10 will drive the third sprocket 18 at the top to rotate. The third sprocket 18 will also drive the fourth sprocket 20 to rotate via the second chain 19. This will cause the fourth sprocket 20 to drive the drive shaft 22 to drive the first bevel gear 23 and the third bevel gear 27 to rotate. This will cause the first bevel gear 23 to drive the second bevel gear 24 and the auger shaft 25 to rotate. This will cause the auger shaft 25 to rotate inside the liquid inlet pipe 26, transferring liquid ammonia to the inside of the device body 1. The third bevel gear 27 will also drive the fourth bevel gear 28 and the second guide shaft 29 to rotate, thereby transferring gaseous ammonia to the inside of the device body 1 through the air inlet pipe 30.

[0044] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An ammonia replenishment device for a heat exchanger based on a pressure-sealed connection, comprising a device body (1) and a heat exchanger body (8) at the right end of the device body (1), wherein a guide pipe (2) is provided at the right end of the device body (1). Its features are: The device body (1) has a drive mechanism at the bottom and the top of the drive mechanism is connected to the flow guiding mechanism. The flow guiding mechanism includes a first flow guiding shaft (17), which is located inside the flow guiding pipe (2). The left end of the flow guiding pipe (2) has a sealing pipe (3), and the top of the sealing pipe (3) is equipped with a flow meter (5) and a first pressure detection valve (6). The left end of the sealing pipe (3) is connected to a diversion pipe (7), and the left end of the diversion pipe (7) is connected to the heat exchanger body (8) pipe. The top of the device body (1) has a second pressure detection valve (31).

2. The ammonia replenishment device for a heat exchanger based on a pressure-holding sealed connection according to claim 1, characterized in that, The sealing tube (3) is provided with sealing flanges (4) at both ends, and the sealing tube (3) is sealed to the guide tube (2) and the diversion tube (7) through the sealing flanges (4). The device body (1) is provided with a liquid inlet pipe (26) and an air inlet pipe (30) at the top.

3. The ammonia replenishment device for a heat exchanger based on a pressure-holding sealed connection according to claim 2, characterized in that, The guide pipe (2) is fixedly connected to the device body (1), and the bottom of the device body (1) is connected to the drive mechanism. The drive mechanism includes a drive motor (9), the top of the drive motor (9) is connected to a first sprocket (10), and the outer side of the first sprocket (10) is engaged with a first chain (11), and the left end of the first chain (11) is engaged with a second sprocket (12). The top of the first sprocket (10) and the second sprocket (12) are both provided with ratchet groups.

4. The ammonia replenishment device for a heat exchanger based on a pressure-holding sealed connection according to claim 3, characterized in that, The bottom of the second sprocket (12) is fixed by a bearing seat, and the ratchet assembly includes a first ratchet (13), and the top of the first ratchet (13) is engaged with a second ratchet (14). A spring shaft (15) is mounted on the top of the second ratchet (14), and the ratchet assembly on the top of the first sprocket (10) and the ratchet assembly on the top of the second sprocket (12) face opposite directions.

5. The ammonia replenishment device for a heat exchanger based on a pressure-holding sealed connection according to claim 4, characterized in that, The top of the second sprocket (12) is connected to the fixing rod (16) via a ratchet assembly, and the top of the fixing rod (16) is connected to the first guide shaft (17), and the outer side of the first guide shaft (17) is attached to the inside of the guide tube (2).

6. The ammonia replenishment device for a heat exchanger based on a pressure-holding sealed connection according to claim 4, characterized in that, The top of the first sprocket (10) is connected to the third sprocket (18) via a ratchet assembly, and the top of the third sprocket (18) is provided with a stirring rod (21), and the stirring rod (21) is located on the top of the main body (1) of the device. The outer side of the third sprocket (18) is provided with a second chain (19), and the right end of the second chain (19) is engaged with a fourth sprocket (20). The top of the fourth sprocket (20) is provided with a drive shaft (22), the top of the drive shaft (22) is connected with a first bevel gear (23), and the front end of the first bevel gear (23) is engaged with a second bevel gear (24), and the front end of the second bevel gear (24) is engaged with an auger shaft (25). The auger shaft (25) is located inside the liquid inlet pipe (26).

7. The ammonia replenishment device for a heat exchanger based on a pressure-holding sealed connection according to claim 6, characterized in that, The top of the drive shaft (22) is engaged with a third bevel gear (27), and the front end of the third bevel gear (27) is engaged with a fourth bevel gear (28). The front end of the fourth bevel gear (28) is connected to a second guide shaft (29), which is located inside the intake pipe (30).

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