Pressure detection device of steam energy storage tank

Abstract

The invention belongs to the technical field of pressure detection, and particularly relates to a pressure detection device of a steam energy storage tank, which comprises a mounting plate, a pressure guide pipe communicated with the steam energy storage tank is fixedly inserted and sleeved on the mounting plate, a barometer is fixedly arranged at the upper end of the pressure guide pipe, and the pressure guide pipe and the barometer are detachably connected through a flange connecting assembly. The device further comprises an adjustable damping mechanism, a sealing keeping mechanism, a steam charging and discharging dynamic feedback mechanism, a pressure change follow-up regulation and control mechanism, a pressure speed change follow-up regulation and control mechanism and a PLC. The pressure change speed is determined based on the steam charging and discharging speed in the steam energy storage tank, the damping coefficient is adjusted, the barometer installation sealing performance is optimized according to pressure and temperature changes caused by steam charging and discharging, the pressure transmission speed and stability can be balanced, it is ensured that the barometer installation sealing performance is always in the optimal state, and the service life of the barometer is prolonged. Therefore, damage to monitoring accuracy of the barometer and leakage risks caused by rapid pressure change are avoided.

Description

Technical Field

[0001] This invention belongs to the field of pressure detection technology, and in particular relates to a pressure detection device for a steam accumulator. Background Technology

[0002] A steam storage tank is a high-efficiency steam storage device that uses water as the working fluid. Its core function is to convert unstable energy sources such as photovoltaic electricity into steam heat energy and store it in the form of water. It adopts a composite non-uniform vacuum insulation structure and a tree-shaped biomimetic flow channel steam charging structure. The interior includes a steam zone, a gas-liquid mixing zone, and a liquid zone. It achieves insulation and energy storage through materials such as SiO2 nanopores, aluminum silicate fiber knitted felt, and microporous calcium silicate spheres, realizing the storage and consumption of new energy sources (such as photovoltaic electricity), while providing a stable steam heat source for industrial and other fields, and promoting the deep re-electrification of the steam supply industry.

[0003] To ensure that the pressure inside the steam storage tank remains within a safe operating range—preventing overpressure damage to the equipment due to excessive pressure and avoiding excessively low pressure affecting steam supply efficiency—real-time monitoring of the tank pressure is necessary. However, due to the operating characteristics of the steam storage tank, frequent charging and discharging operations are required: during charging, steam is rapidly introduced, easily causing instantaneous pressure spikes inside the tank; during discharging, steam is rapidly discharged, and the pressure may drop sharply, forming a severe "dynamic pressure shock." If this shock is directly transmitted to the barometer, it can cause its sensitive element to overload due to inertia (such as excessive diaphragm deformation) or respond with lag (such as severe pointer jitter), thus resulting in measurement errors. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a pressure detection device for a steam accumulator.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressure detection device for a steam storage tank, comprising a mounting plate, wherein a pressure guiding pipe communicating with the steam storage tank is fixedly inserted on the mounting plate, and a pressure gauge is fixedly mounted on the upper end of the pressure guiding pipe; the pressure guiding pipe and the pressure gauge are detachably connected via a flange connection assembly, and further comprising: An adjustable damping mechanism is installed on the pressure-conducting pipe; A sealing retention mechanism is installed outside the flange connection assembly to actively compensate for the sealing performance of the flange connection assembly. A charging and discharging dynamic feedback mechanism is fixedly mounted on the mounting plate and electrically connected to the barometer; The pressure magnitude change-following control mechanism is installed inside the charging and discharging dynamic feedback mechanism and is electrically connected to the sealing and retaining mechanism; The pressure and speed change follow-up control mechanism is installed in the charging and discharging dynamic feedback mechanism and is electrically connected to the adjustable damping mechanism. The PLC controller is fixedly mounted on the mounting plate and is electrically connected to the adjustable damping mechanism, the sealing and retaining mechanism, the charging and discharging dynamic feedback mechanism, the pressure magnitude change follow-up control mechanism, and the pressure speed change follow-up control mechanism.

[0006] In the aforementioned pressure detection device for a steam accumulator, the adjustable damping mechanism includes a needle valve fixedly connected to the pressure guide pipe. An adjusting shell located on one side of the needle valve is fixedly mounted on the upper end of the mounting plate. Multiple guide rods arranged side-by-side are fixedly connected to the inner wall of the adjusting shell. The same adjusting plate is slidably sleeved around the guide rods. Multiple retaining springs sleeved around the guide rods are fixedly connected to both opposite sides of the adjusting plate and the inner wall of the adjusting shell. A positive permanent magnet plate and a negative permanent magnet plate are fixedly connected to both opposite sides of the adjusting plate. A positive electromagnetic plate and a negative electromagnetic plate, respectively, are fixedly connected to the inner wall of the adjusting shell. A positive electromagnetic plate and a negative electromagnetic plate, respectively, are fixedly connected to the inner wall of the adjusting shell. One end of the adjusting plate extends out of the adjusting shell and is fixedly connected to an adjusting rack via a connecting frame. An adjusting gear meshing with the adjusting rack is fixedly connected to the input end of the needle valve.

[0007] In the pressure detection device for a steam storage tank described above, the sealing and retaining mechanism includes multiple positioning plates symmetrically and fixedly connected to the lower end of the flange connection assembly. Multiple anti-detachment rods are symmetrically and fixedly connected to the lower end of the positioning plates. The same force-bearing plate is slidably sleeved around the multiple anti-detachment rods. Multiple limiting springs sleeved around the anti-detachment rods are fixedly connected between the positioning plates and the force-bearing plate. A pressure-applying permanent magnet plate is fixedly connected to the upper end of the force-bearing plate. A pressure-applying electromagnetic plate, opposite to the pressure-applying permanent magnet plate, is fixedly installed at the lower end of the positioning plate. A positioning frame is detachably and fixedly connected to one end of the force-bearing plate. An L-shaped pressure plate, pressed against the upper end of the flange connection assembly, is fixedly connected to the upper end of the positioning frame.

[0008] In the aforementioned pressure detection device for a steam storage tank, the dynamic feedback mechanism for charging and discharging steam includes a feedback shell fixedly mounted on the upper end of the mounting plate. Multiple fixed sliding rods arranged side-by-side are symmetrically fixedly connected to the inner wall of the feedback shell. A single feedback plate is slidably sleeved around each of the multiple fixed sliding rods. Multiple thrust springs sleeved around the fixed sliding rods are fixedly connected between the feedback plate and the feedback shell. A feedback permanent magnet plate is fixedly connected to the side wall of the feedback plate, and a feedback electromagnetic plate, opposite to the feedback permanent magnet plate, is fixedly mounted on the inner wall of the feedback shell.

[0009] In the pressure detection device for a steam storage tank described above, the pressure change follow-up control mechanism includes a potentiometer and an electric continuously variable transmission (CVT) fixedly installed at one end of the feedback plate. The center of the rotating end of the potentiometer is fixedly connected to the output end of the CVT. A first transmission gear is fixedly connected to the input end of the CVT. A first transmission rack that meshes with the first transmission gear is fixedly connected to the inner wall of the feedback housing.

[0010] In the pressure detection device of the steam storage tank described above, the pressure speed change follow-up control mechanism includes a micro generator and a speed-increasing gearbox fixedly installed at the other end of the feedback plate. The input end of the micro generator is fixedly connected to the output end of the speed-increasing gearbox. A second transmission gear is fixedly connected to the input end of the speed-increasing gearbox. A second transmission rack that meshes with the second transmission gear is fixedly installed on the inner wall of the feedback shell.

[0011] In the pressure detection device for a steam storage tank described above, the regulating shell is provided with an open structure on the side near the needle valve, and an elastic sealing gasket is fixedly connected to the inner wall of the corresponding opening.

[0012] In the pressure detection device for a steam storage tank described above, an anti-detachment plate is fixedly connected to the end of the anti-detachment rod away from the positioning plate, and the anti-detachment plate is located on the lower side of the force-bearing plate.

[0013] Compared with existing technologies, the advantages of this invention are as follows: 1. By setting pressure guide pipes, barometers, adjustable damping mechanisms, dynamic feedback mechanisms for steam charging and discharging, and pressure and speed change control mechanisms, the pressure change rate inside the steam storage tank can be determined based on the steam charging and discharging rate inside the tank. Then, by changing the damping coefficient, the pressure transmission speed and stability can be balanced, avoiding the damage to the barometer monitoring accuracy caused by rapid changes in the tank pressure.

[0014] 2. By incorporating flange connection components, sealing retention mechanisms, dynamic feedback mechanisms for steam charging and discharging, and pressure change-following control mechanisms, the system addresses the issue of pressure and temperature changes within the steam storage tank affecting the barometer's installation seal. This ensures the barometer's installation seal remains at an optimal value, preventing leakage risks caused by dynamic changes in steam charging and discharging. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a frontal sectional view of the present invention; Figure 3 This is a schematic diagram of the adjustable damping mechanism of the present invention; Figure 4 This is a schematic diagram of the sealing and retaining mechanism of the present invention; Figure 5 This is a cross-sectional structural schematic diagram of the dynamic feedback mechanism for charging and discharging of the present invention; Figure 6 yes Figure 5 Enlarged view of section A in the middle; Figure 7 yes Figure 5 Enlarged view of section B.

[0016] In the diagram: 1. Mounting plate; 2. Adjustable damping mechanism; 21. Needle valve; 22. Adjusting shell; 23. Guide slide rod; 24. Adjusting plate; 25. Holding spring; 26. Forward permanent magnet plate; 27. Reverse permanent magnet plate; 28. Forward electromagnetic plate; 29. ​​Reverse electromagnetic plate; 210. Adjusting rack; 211. Adjusting gear; 3. Sealing and holding mechanism; 31. Positioning plate; 32. Anti-detachment rod; 33. Force plate; 34. Limiting spring; 35. Pressurizing permanent magnet plate; 36. Pressurizing electromagnetic plate; 37. Positioning frame; 38. L-shaped clamping plate; 39. Anti-detachment plate; 4. Gas charging / discharging mechanism. 41 Feedback mechanism, 42 Feedback housing, 43 Fixed slide bar, 44 Feedback plate, 45 Reverse spring, 46 Feedback permanent magnet plate, 5 Feedback electromagnetic plate, 6 Pressure magnitude change follow-up control mechanism, 51 Potentiometer, 52 Electric continuously variable transmission, 53 First transmission gear, 54 First transmission rack, 6 Pressure speed change follow-up control mechanism, 61 Micro generator, 62 Speed ​​increasing gearbox, 63 Second transmission gear, 64 Second transmission rack, 7 Pressure guide pipe, 8 Barometer, 9 Flange connection assembly, 10 PLC controller. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] like Figures 1-7 As shown, a pressure detection device for a steam accumulator includes a mounting plate 1, on which a pressure-conducting pipe 7 communicating with the steam accumulator is fixedly inserted. A pressure gauge 8 is also fixedly installed at the upper end of the pressure-conducting pipe 7. The pressure-conducting pipe 7 and the pressure gauge 8 are detachably connected via a flange connection assembly 9. The device also includes: An adjustable damping mechanism 2 is installed on the pressure guide pipe 7. The adjustable damping mechanism 2 includes a needle valve 21 fixedly connected to the pressure guide pipe 7. An adjusting shell 22 located on one side of the needle valve 21 is fixedly installed on the upper end of the mounting plate 1. Multiple guide slide rods 23 arranged side by side are fixedly connected to the inner wall of the adjusting shell 22. The same adjusting plate 24 is slidably sleeved on the outside of the multiple guide slide rods 23. Multiple retaining springs 25 sleeved on the guide slide rods 23 are fixedly connected to the opposite sides of the adjusting plate 24 and the inner wall of the adjusting shell 22. The opposite sides of the adjusting plate 24 are respectively fixedly connected to There are a positive permanent magnet plate 26 and a negative permanent magnet plate 27. The inner wall of the adjusting shell 22 is also fixedly connected to a positive electromagnetic plate 28 and a negative electromagnetic plate 29 respectively, which are respectively arranged opposite to the positive permanent magnet plate 26 and the negative permanent magnet plate 27. One end of the adjusting plate 24 extends out of the adjusting shell 22 and is fixedly connected to an adjusting rack 210 through a connecting frame. The input end of the needle valve 21 is fixedly connected to an adjusting gear 211 that meshes with the adjusting rack 210. The side of the adjusting shell 22 near the needle valve 21 is set as an open structure, and an elastic sealing gasket is fixedly connected to the inner wall corresponding to the opening.

[0019] A sealing and retaining mechanism 3 is installed outside the flange connection assembly 9 and is used to actively compensate for the sealing performance of the flange connection assembly 9. The sealing and retaining mechanism 3 includes multiple positioning plates 31 symmetrically fixedly connected to the lower end of the flange connection assembly 9. Multiple anti-detachment rods 32 are symmetrically fixedly connected to the lower end of the positioning plates 31. The same force plate 33 is slidably sleeved on the outside of the multiple anti-detachment rods 32. Multiple limiting springs 34 sleeved on the outside of the anti-detachment rods 32 are fixedly connected between the positioning plates 31 and the force plate 33. A pressure permanent magnet plate 35 is fixedly connected to the upper end of the force plate 33. A pressure electromagnetic plate 36 is fixedly installed at the lower end of the positioning plates 31, which is opposite to the pressure permanent magnet plate 35. A positioning frame 37 is detachably fixedly connected to one end of the force plate 33. An L-shaped pressure plate 38 is fixedly connected to the upper end of the positioning frame 37 and pressed against the upper end of the flange connection assembly 9. An anti-detachment plate 39 is fixedly connected to the end of the anti-detachment rod 32 away from the positioning plate 31. The anti-detachment plate 39 is located on the lower side of the force plate 33.

[0020] The charging and discharging dynamic feedback mechanism 4 is fixedly installed on the mounting plate 1 and electrically connected to the barometer 8. The charging and discharging dynamic feedback mechanism 4 includes a feedback shell 41 fixedly installed on the upper end of the mounting plate 1. Multiple fixed sliding rods 42 are symmetrically fixedly connected to the inner wall of the feedback shell 41. The same feedback plate 43 is slidably sleeved on the outside of the multiple fixed sliding rods 42. Multiple push springs 44 sleeved on the outside of the fixed sliding rods 42 are fixedly connected between the feedback plate 43 and the feedback shell 41. A feedback permanent magnet plate 45 is fixedly connected to the side wall of the feedback plate 43. A feedback electromagnetic plate 46 is fixedly installed on the inner wall of the feedback shell 41 and is opposite to the feedback permanent magnet plate 45.

[0021] The pressure change follow-up control mechanism 5 is installed inside the charging and discharging dynamic feedback mechanism 4 and is electrically connected to the sealing and holding mechanism 3. The pressure change follow-up control mechanism 5 includes a potentiometer 51 and an electric continuously variable transmission 52 fixedly installed at one end of the feedback plate 43. The center of the rotating end of the potentiometer 51 is fixedly connected to the output end of the electric continuously variable transmission 52. The input end of the electric continuously variable transmission 52 is fixedly connected to a first transmission gear 53. The inner wall of the feedback housing 41 is fixedly connected to a first transmission rack 54 that meshes with the first transmission gear 53.

[0022] The pressure and speed change follow-up control mechanism 6 is installed inside the charging and discharging dynamic feedback mechanism 4 and is electrically connected to the adjustable damping mechanism 2. The pressure and speed change follow-up control mechanism 6 includes a micro generator 61 and a speed-increasing gearbox 62 fixedly installed at the other end of the feedback plate 43. The input end of the micro generator 61 is fixedly connected to the output end of the speed-increasing gearbox 62. The input end of the speed-increasing gearbox 62 is fixedly connected to a second transmission gear 63. A second transmission rack 64 that meshes with the second transmission gear 63 is fixedly installed on the inner wall of the feedback shell 41.

[0023] The PLC controller 10 is fixedly installed on the mounting plate 1 and is electrically connected to the adjustable damping mechanism 2, the sealing and retaining mechanism 3, the charging and discharging dynamic feedback mechanism 4, the pressure magnitude change follow-up control mechanism 5, and the pressure speed change follow-up control mechanism 6.

[0024] The operating principle of the present invention is described as follows: The pressure guide pipe 7 is installed on the steam storage tank, and the pressure gauge 8 and the pressure guide pipe 7 are fixed together by the flange connection assembly 9. The pressure gauge 8 monitors and warns the pressure of the steam storage tank in real time to avoid the danger caused by the pressure change exceeding the threshold and not being dealt with in time. The PLC controller 10 controls the power supply to the feedback electromagnetic plate 46 based on the pressure feedback from the barometer 8 within the steam storage tank. Specifically, when the steam storage tank is charging, the barometer 8 detects a gradual increase in pressure. The PLC controller 10 then controls the power supply to gradually supply a larger current to the feedback electromagnetic plate 46, synchronously adjusting the current based on the pressure. This causes the feedback electromagnetic plate 46 to generate a larger magnetism, identical to that of the feedback permanent magnet plate 45, thus applying a magnetic thrust to the feedback plate 43. This causes the feedback plate 43 to slide a greater distance along the fixed slide bar 42, overcoming the spring force of the counter-thrust spring 44. Consequently, the feedback plate 43 drives the pressure change-following control mechanism 5 to move a greater distance synchronously. During this process, the first transmission gear 53 engages more strongly with the first transmission rack 54. Under the transmission action of the electric continuously variable transmission 52, the input end of the potentiometer 51 rotates a larger angle, resulting in a greater decrease in the resistance of the potentiometer 51. Furthermore, potentiometer 51 is connected in series in the power supply circuit of the pressure-applying electromagnetic plate 36 within the sealing and retaining mechanism 3. Consequently, as the gas pressure inside the steam storage tank increases, the power supply current of the pressure-applying electromagnetic plate 36 increases. The pressure-applying electromagnetic plate 36 generates the same and greater magnetism as the pressure-applying permanent magnet plate 35, thereby applying a greater magnetic thrust to the force-bearing plate 33. The force-bearing plate 33 drives the L-shaped clamping plate 38 to press down, which, together with the positioning plate 31, provides further clamping and fixing force to the flange connection assembly 9. This is because the high pressure will cause the steam inside the steam storage tank to exert a greater magnetic thrust on the flange connection assembly 9. The flange connection assembly 9 generates a greater thrust, requiring an increase in the clamping force of the sealing components to ensure sealing stability. The essence of sealing is to use clamping force to make the sealing surface fit tightly together and counteract the thrust of the internal medium. When the gas pressure inside the steam accumulator is low, the thrust of the internal medium on the sealing surface is relatively small, and the required balancing clamping force is also reduced. If the clamping force is increased at this time, it will cause excessive stress on the sealing surface (external clamping force > internal thrust), which can easily cause stress deformation of the flange connection assembly 9, damage the flatness of the sealing surface, and cause leakage. The PLC controller 10 also automatically adjusts the transmission ratio of the electric continuously variable transmission 52 based on the temperature of the steam during the charging process. When the steam temperature is higher, the transmission ratio of the electric continuously variable transmission 52 is adjusted to be larger, so that the resistance of the potentiometer 51 drops more under the same gas pressure increase, providing a greater locking and sealing force. This is because a higher steam temperature means that the temperature rise in the steam storage tank is greater under the same amount of steam charging. High temperature will cause the sealing material to expand due to heat. If the clamping force is insufficient, the expansion will easily lead to an increase in the gap between the sealing surfaces, exacerbating the risk of leakage. Therefore, a larger sealing clamping force is required to ensure sealing performance. Furthermore, when the steam storage tank is being charged and discharged, causing the feedback plate 43 to move, the feedback plate 43 also drives the pressure and speed change follow-up control mechanism 6 to operate. Similarly, through the meshing of the second transmission gear 63 and the second transmission rack 64, the input end of the micro generator 61 can be driven to rotate in conjunction with the speed-increasing gearbox 62, thereby causing the micro generator 61 to generate current. Specifically, the faster the steam charging and discharging speed, the faster the feedback plate 43 moves, resulting in a larger current generated by the micro generator 61 per unit time. The current generated by the micro generator 61, in conjunction with the rectifier and current amplification circuit, supplies power to the adjustable damping mechanism 2. Specifically, when the steam charging operation is performed, the PLC controller 10 controls the micro generator 61 to output amplified current, which is supplied to the positive electromagnetic plate 28. The positive electromagnetic plate 28 is energized and generates the same magnetism as the positive permanent magnet plate 26. This applies a downward magnetic thrust to the regulating plate 24, which in turn drives the regulating rack 210 to move downward. Through the positive meshing of the regulating rack 210 and the regulating gear 211, the diameter of the damping orifice of the needle valve 21 is reduced, increasing fluid resistance and reducing pressure shock. Conversely, during steam release, the PLC controller 10 controls the micro generator 61 to output amplified current to the reverse electromagnetic plate 29, causing the regulating rack 210 to move upward and the diameter of the damping orifice of the needle valve 21 to increase. This avoids response lag and balances the pressure transmission speed and stability. Because reducing the diameter of the damping orifice during steam charging will increase the damping coefficient of the needle valve 21, increase fluid resistance, slow down the flow speed of steam in the pressure guide pipe 7, and buffer pressure fluctuations—instantaneous pressure spikes are attenuated, and the pressure signal transmitted to the barometer 8 is smoother, avoiding damage to sensitive elements or overshoot errors. When releasing steam, increasing the diameter of the damping orifice will reduce the damping coefficient of the needle valve 21, decrease the fluid resistance, and allow the pressure signal to be transmitted from the steam storage tank to the barometer 8 more quickly. This avoids delays in pressure change transmission due to excessive resistance (e.g., the pressure inside the tank has decreased, but the reading of the barometer 8 is still too high), ensuring that the measured value can track the real pressure in real time. Furthermore, the faster the steam charging speed, the more the amount of steam in the steam storage tank increases per unit time, and the greater the slope of the pressure rise. At this time, the "impact energy" of the pressure fluctuation is stronger, and the damping orifice needs to be adjusted smaller (the damping coefficient needs to be significantly increased) to effectively attenuate the high-frequency impact. At this time, a larger current is supplied to the positive electromagnetic plate 28, which will make the adjustment angle of the needle valve 21 adjustment end larger, and can correspond to a larger adjustment of the damping orifice. The faster the steam release rate, the greater the slope of the pressure drop. In order to avoid lag in pressure signal transmission, it is necessary to increase the damping orifice size (significantly reduce the damping coefficient) to ensure the real-time pressure drop.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure detection device for steam accumulators, comprising a mounting plate (1) on which a pressure guide pipe (7) is fixedly inserted, the pressure guide pipe (7) being in communication with a steam accumulator, an air pressure gauge (8) being further fixedly arranged at the upper end of the pressure guide pipe (7), the pressure guide pipe (7) and the air pressure gauge (8) being detachably connected through a flange connecting assembly (9), characterized in that, Also include: Adjustable damping mechanism (2) is installed on the guide pressure pipe (7); Sealing maintenance mechanism (3) is installed outside the flange connection assembly (9), and is used for active compensation of the sealing of the flange connection assembly (9); Charging and discharging dynamic feedback mechanism (4) is fixedly installed on the mounting plate (1), and is electrically connected with the barometer (8); Pressure size change follow-up control mechanism (5) is installed in the charging and discharging dynamic feedback mechanism (4), and is electrically connected with the sealing maintenance mechanism (3); Pressure speed change follow-up control mechanism (6) is installed in the charging and discharging dynamic feedback mechanism (4), and is electrically connected with the adjustable damping mechanism (2); PLC controller (10) is fixedly installed on the mounting plate (1), and is electrically connected with the adjustable damping mechanism (2), the sealing maintenance mechanism (3), the charging and discharging dynamic feedback mechanism (4), the pressure size change follow-up control mechanism (5) and the pressure speed change follow-up control mechanism (6).

2. The pressure detection device of a steam accumulator according to claim 1, wherein The adjustable damping mechanism (2) comprises a needle valve (21) fixedly connected with the guide pressure pipe (7), an adjusting shell (22) fixedly installed on the upper end of the mounting plate (1) and located on one side of the needle valve (21), a plurality of guide sliding rods (23) fixedly connected with the inner wall of the adjusting shell (22) and arranged side by side, a same adjusting plate (24) slidably sleeved outside the plurality of guide sliding rods (23), a plurality of retaining springs (25) fixedly connected with the inner wall of the adjusting shell (22) and arranged on the guide sliding rods (23), a positive permanent magnet plate (26) and a reverse permanent magnet plate (27) fixedly connected with the opposite sides of the adjusting plate (24), a positive electromagnetic plate (28) and a reverse electromagnetic plate (29) fixedly connected with the inner wall of the adjusting shell (22) and arranged opposite to the positive permanent magnet plate (26) and the reverse permanent magnet plate (27), an adjusting rack (210) fixedly connected with one end of the adjusting plate (24) and extending out of the adjusting shell (22), and an adjusting gear (211) fixedly connected with the input end of the needle valve (21) and engaged with the adjusting rack (210).

3. The pressure detection device of a steam accumulator tank according to claim 1, wherein The sealing maintenance mechanism (3) comprises a plurality of positioning plates (31) fixedly connected with the lower end of the flange connection assembly (9), a plurality of anti-dropping rods (32) fixedly connected with the lower end of the positioning plate (31), a same stress plate (33) slidably sleeved outside the plurality of anti-dropping rods (32), a plurality of limiting springs (34) fixedly connected between the positioning plate (31) and the stress plate (33) and arranged on the anti-dropping rods (32), a pressurizing permanent magnet plate (35) fixedly connected with the upper end of the stress plate (33), a pressurizing electromagnetic plate (36) fixedly installed on the lower end of the positioning plate (31) and arranged opposite to the pressurizing permanent magnet plate (35), a positioning frame (37) detachably fixedly connected with one end of the stress plate (33), and an L-shaped pressure fixing plate (38) fixedly connected with the upper end of the flange connection assembly (9) and arranged on the positioning frame (37).

4. The pressure detection device of a steam accumulator tank according to claim 1, wherein The steam charging and discharging dynamic feedback mechanism (4) comprises a feedback shell (41) fixedly arranged on the upper end of the mounting plate (1), the inner wall of the feedback shell (41) is symmetrically fixedly connected with a plurality of fixed slide rods (42) arranged side by side, the same feedback plate (43) is slidably sleeved outside the plurality of fixed slide rods (42), a plurality of feedback push springs (44) are fixedly connected between the feedback plate (43) and the feedback shell (41) and sleeved outside the fixed slide rods (42), the side wall of the feedback plate (43) is fixedly connected with a feedback permanent magnet plate (45), and the inner wall of the feedback shell (41) is fixedly arranged with a feedback electromagnetic plate (46) arranged opposite to the feedback permanent magnet plate (45).

5. The pressure detecting device for a steam accumulator tank according to claim 4, wherein The pressure size change follow-up control mechanism (5) comprises a potentiometer (51) and an electric continuously variable transmission (52) fixedly arranged at one end of the feedback plate (43), the rotating end center of the potentiometer (51) is fixedly connected with the output end of the electric continuously variable transmission (52), the input end of the electric continuously variable transmission (52) is fixedly connected with a first transmission gear (53), and the inner wall of the feedback shell (41) is fixedly connected with a first transmission rack (54) engaged with the first transmission gear (53).

6. The pressure detection device of a steam accumulator tank according to claim 5, wherein The pressure speed change follow-up control mechanism (6) comprises a micro generator (61) and a speed increasing gear box (62) fixedly arranged at the other end of the feedback plate (43), the input end of the micro generator (61) is fixedly connected with the output end of the speed increasing gear box (62), the input end of the speed increasing gear box (62) is fixedly connected with a second transmission gear (63), and the inner wall of the feedback shell (41) is fixedly arranged with a second transmission rack (64) engaged with the second transmission gear (63).

7. The pressure detecting device for a steam accumulator tank according to claim 2, wherein The adjusting shell (22) is provided with an open structure on the side close to the needle valve (21), and the inner wall corresponding to the opening is fixedly connected with an elastic sealing rubber gasket.

8. The pressure detecting device for a steam accumulator tank according to claim 3, wherein The anti-disengagement rod (32) is fixedly connected with an anti-disengagement plate (39) at the end away from the positioning plate (31), and the anti-disengagement plate (39) is arranged on the lower side of the stress plate (33).

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