Nitrogen compression and pressure stabilization anti-surge device
By setting up an intake flowmeter, pressure sensor and controller in the nitrogen press, monitoring and matching the inlet and outlet air flow and pressure of nitrogen, combined with the shock absorption device, the surge problem of nitrogen press is solved, and stable operation and safety are achieved promote.
Patent Information
- Application Number
- CN202420788974.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-17
AI Technical Summary
During operation of the nitrogen press, due to the intake flow rate of the low-pressure nitrogen intake air flow rate and the high-pressure outlet pressure, the surge phenomenon is caused, resulting in deterioration of performance, fluctuations in airflow parameters, intensified noise and vibration, and even damage to the equipment.
A nitrogen compression and pressure stabilization and anti-surge device is designed, including a nitrogen press, controller, intake flowmeter, pressure sensor, return pipe and shock absorber. By monitoring and controlling the intake air flow and outlet pressure, it ensures that it is in Within a limited range, a sliding rod, casing and shock absorbing spring are combined to reduce vibration.
It effectively avoids the surge phenomenon of the nitrogen press, ensures the stability and safe operation of the airflow parameters, and reduces noise and vibration through the shock absorber, improving the reliability of the equipment.
Smart Images
Figure CN222254405U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nitrogen compression, in particular to a nitrogen compression voltage stabilizing and surge preventing device. Background Art
[0002] Nitrogen is a colorless, odorless gas that can be compressed to high pressure. It is insoluble in water and ethanol, has an inactive chemical property, and is difficult to react with other substances at room temperature. Nitrogen accounts for 78.08% of the total atmosphere and is the main component of air. It is easy to obtain and has low cost. Due to its special chemical properties, nitrogen is often used for anti-oxidation and anti-corrosion, air sealing, purging and unblocking, cooling, auxiliary environmental agent, etc. In order to facilitate the shipment, storage and transportation of nitrogen, it needs to be compressed using a nitrogen compressor.
[0003] At present, during the operation of the nitrogen compressor, surge often occurs due to the mismatch between the low-pressure nitrogen inlet flow and the high-pressure outlet pressure, which causes the performance of the nitrogen compressor to deteriorate, the airflow parameters (pressure, flow) to fluctuate greatly, the noise and vibration to increase, and even damage the nitrogen compressor in severe cases. For this reason, we propose a nitrogen compression pressure stabilizing and anti-surge device. Utility Model Content
[0004] The utility model aims to provide a nitrogen compression pressure stabilizing and surge preventing device, which has the advantages of being able to make the high-pressure outlet pressure and the low-pressure intake flow of the nitrogen compressor within a matching limited range, avoiding the occurrence of surge in the nitrogen compressor, so as to ensure the safe operation of the unit, and stabilizing the gas flow parameters of the nitrogen compressor, and solves the problem that during the operation of the current nitrogen compressor, surge often occurs due to mismatch between the low-pressure intake flow and the high-pressure outlet pressure of the nitrogen, resulting in deterioration of the performance of the nitrogen compressor, large fluctuations in the gas flow parameters (pressure, flow), aggravation of noise and vibration, and even damage to the nitrogen compressor in severe cases.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nitrogen compression, pressure stabilization and anti-surge device, comprising a nitrogen compressor, a controller and a base, the input end of the nitrogen compressor is fixedly connected with an intake flow meter, the end of the intake flow meter is fixedly connected with an intake pipe, the end of the intake pipe is fixedly connected with an intake valve, the output end of the nitrogen compressor is fixedly connected with an outlet pipe, a pressure sensor is fixedly installed on the outer surface of the outlet pipe, a return pipe A is fixedly connected to the outer surface of the outlet pipe, a one-way valve is fixedly connected to the end of the return pipe A, a one-way valve is fixedly connected to the end of the one-way valve, a return valve is fixedly connected to the end of the return valve, a return pipe B is fixedly connected to the end of the return valve, and the end of the return pipe B is fixedly connected to the outer surface of the intake pipe.
[0006] Preferably, the pressure sensor and the intake air flow meter are both electrically connected to the controller.
[0007] Preferably, the air inlet valve and the return valve are both electrically connected to the controller.
[0008] Preferably, sleeves are fixedly installed on the upper surface of the base near the four corners, and sliding rods are fixedly connected to the lower surface of the nitrogen compressor near the four corners. The ends of the four sliding rods are fixedly connected to piston plates, and the four piston plates are respectively located inside the four sleeves.
[0009] Preferably, the lower surfaces and upper surfaces of the four piston plates are fixedly connected with shock-absorbing springs.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] 1. The utility model achieves the effect of making the high-pressure outlet pressure and the low-pressure inlet flow of the nitrogen compressor within a matching limited range by arranging an inlet valve, an inlet flow meter, a nitrogen compressor, an inlet pipe, an outlet pipe, a pressure sensor, a reflux pipe A, a reflux pipe B, a reflux valve and a controller, so as to avoid the occurrence of surging of the nitrogen compressor, thereby ensuring the safe operation of the unit and stabilizing the airflow parameters of the nitrogen compressor. The low-pressure nitrogen enters the nitrogen compressor through the inlet valve, the inlet pipe and the inlet flow meter, and is discharged from the outlet pipe after being compressed. The outlet pressure and the inlet flow are monitored by the inlet flow meter and the pressure sensor, and the monitoring signal is transmitted to the controller. The controller controls the opening of the reflux valve and the inlet valve according to the monitoring signal, so that the inlet flow and the outlet pressure are within a matching limited range, thereby avoiding the occurrence of surging of the nitrogen compressor.
[0012] 2. The utility model achieves the effect of shock absorbing for the nitrogen compressor and improving the safety and reliability of the unit operation by arranging a sliding rod, a sleeve, a piston plate and a shock-absorbing spring. When the nitrogen compressor is running and vibrates, the piston plate at the end of the sliding rod moves up and down inside the sleeve, and the gas inside the sleeve is compressed and released, thereby releasing the vibration energy, and at the same time cooperates with the shock-absorbing spring to reduce the shock of the nitrogen compressor. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional schematic diagram of the utility model;
[0014] Figure 2 This is a schematic diagram of the main structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the top view structure of the utility model;
[0016] Figure 4 It is a schematic diagram of the partial main cross-sectional structure of the sleeve and the sliding rod of the utility model.
[0017] Figure numerals: 1. Inlet valve; 2. Inlet pipe; 3. Inlet flowmeter; 4. Nitrogen compressor; 5. DCS controller; 6. Reflux pipe A; 7. One-way valve; 8. Reflux valve; 9. Reflux pipe B; 10. Sleeve; 11. Sliding rod; 12. Base; 13. Exit pipe; 14. Pressure sensor; 15. Shock absorber spring; 16. Piston plate. DETAILED DESCRIPTION
[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] Embodiment 1
[0020] like Figure 1-Figure 3 As shown, a nitrogen compression pressure stabilization and surge prevention device proposed by the utility model includes a nitrogen compressor 4, a controller 5 and a base 12, an input end of the nitrogen compressor 4 is fixedly connected to an intake flow meter 3, an end of the intake flow meter 3 is fixedly connected to an intake pipe 2, an end of the intake pipe 2 is fixedly connected to an intake valve 1, low-pressure nitrogen enters the nitrogen compressor 4 through the intake valve 1, the intake pipe 2 and the intake flow meter 3, and the flow of low-pressure nitrogen entering the nitrogen compressor 4 is monitored by the intake flow meter 3, an output end of the nitrogen compressor 4 is fixedly connected to an outlet pipe 13, an outer surface of the outlet pipe 13 is fixedly installed with a pressure sensor 14, and the detection of the pressure sensor 14 The probe is located inside the outlet pipe 13, and the compressed nitrogen is discharged from the outlet pipe 13, and the pressure value is monitored by the pressure sensor 14. The pressure sensor 14 and the intake flow meter 3 are electrically connected to the controller 5. The outer surface of the outlet pipe 13 is fixedly connected to a return pipe A6, and the end of the return pipe A6 is fixedly connected to a one-way valve 7, and the end of the one-way valve 7 is fixedly connected to a return valve 8. The intake valve 1 and the return valve 8 are electrically connected to the controller 5. The controller 5 controls the opening of the return valve 8 and the intake valve 1 according to the monitoring signal. The end of the return valve 8 is fixedly connected to a return pipe B9, and the end of the return pipe B9 is fixedly connected to the outer surface of the intake pipe 2.
[0021] When the utility model is in use, low-pressure nitrogen enters the nitrogen compressor 4 through the intake valve 1, the intake pipe 2 and the intake flow meter 3, and the nitrogen is discharged from the outlet pipe 13 after being compressed. The outlet pressure and the intake flow are monitored by the intake flow meter 3 and the pressure sensor 14, and the monitoring signal is transmitted to the controller 5. The controller 5 controls the opening of the reflux valve 8 and the intake valve 1 according to the monitoring signal, so that the intake flow and the outlet pressure are within a matching limited range, thereby avoiding the occurrence of surging of the nitrogen compressor 4.
[0022] Embodiment 2
[0023] like Figure 2 and Figure 4As shown, a nitrogen compression, pressure stabilization and anti-surge device proposed by the utility model, compared with the first embodiment, this embodiment also includes sleeves 10 fixedly installed on the upper surface of the base 12 near the four corners, sliding rods 11 are fixedly connected to the lower surface of the nitrogen compressor 4 near the four corners, the ends of the four sliding rods 11 are fixedly connected to piston plates 16, and the four piston plates 16 are respectively located inside the four sleeves 10, and the lower and upper surfaces of the four piston plates 16 are fixedly connected to shock-absorbing springs 15.
[0024] In this embodiment, when the nitrogen compressor 4 is running and generates vibration, the piston plate 16 at the end of the sliding rod 11 moves up and down inside the sleeve 10, and the gas inside the sleeve 10 is compressed and released, thereby releasing the vibration energy, and at the same time cooperates with the shock-absorbing spring 15 to reduce the shock of the nitrogen compressor 4.
[0025] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A nitrogen compression, pressure stabilization and surge prevention device, comprising a nitrogen compressor (4), a controller (5) and a base (12), characterized in that: The input end of the nitrogen compressor (4) is fixedly connected to an intake flow meter (3), the end of the intake flow meter (3) is fixedly connected to an intake pipe (2), the end of the intake pipe (2) is fixedly connected to an intake valve (1), the output end of the nitrogen compressor (4) is fixedly connected to an outlet pipe (13), the outer surface of the outlet pipe (13) is fixedly mounted with a pressure sensor (14), the outer surface of the outlet pipe (13) is fixedly connected to a return pipe A (6), the end of the return pipe A (6) is fixedly connected to a one-way valve (7), the end of the one-way valve (7) is fixedly connected to a return valve (8), the end of the return valve (8) is fixedly connected to a return pipe B (9), and the end of the return pipe B (9) is fixedly connected to the outer surface of the intake pipe (2).
2. A nitrogen compression, voltage stabilization and surge prevention device according to claim 1, characterized in that: The pressure sensor (14) and the air intake flow meter (3) are both electrically connected to the controller (5).
3. A nitrogen compression, voltage stabilization and surge prevention device according to claim 1, characterized in that: The air inlet valve (1) and the return valve (8) are both electrically connected to the controller (5).
4. A nitrogen compression, voltage stabilization and surge prevention device according to claim 1, characterized in that: The upper surface of the base (12) is fixedly mounted with sleeves (10) near the four corners, the lower surface of the nitrogen compressor (4) is fixedly connected with sliding rods (11) near the four corners, the ends of the four sliding rods (11) are fixedly connected with piston plates (16), and the four piston plates (16) are respectively located inside the four sleeves (10).
5. A nitrogen compression, voltage stabilization and surge prevention device according to claim 4, characterized in that: The lower surfaces and upper surfaces of the four piston plates (16) are all fixedly connected with shock absorbing springs (15).