Efficient steam generator with built-in pressure stabilizing function

Abstract

The invention discloses an efficient steam generator with a built-in pressure stabilizing function and aims to solve the problem that steam pressure fluctuation is difficult to control due to mutual interference caused by changes of external pressure and external temperature in a steam production process. According to the method, a temperature and pressure change set is formed by a difference value between radial average temperature and pressure data and radial comparison temperature and pressure data, a difference value between axial average temperature and pressure data and axial comparison temperature and pressure data and corresponding acquisition time points, and comparative analysis of temperature and pressure change amplitude and temperature and pressure change speed is completed through the temperature and pressure change set to obtain a heat transfer proportion signal; the opening degrees of the steam inlet valve and the steam outlet valve are adjusted, and the flow of a heat transfer medium of the heat transfer straight pipe is controlled, so that the balance of temperature and pressure data on the inner side and the outer side of the follow-up pressure stabilizing assembly is realized, and the steam generator has the function of adaptively and stably controlling according to external pressure and external temperature changes in the steam generation process; and smooth output of steam produced by the furnace body is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of steam generators, and particularly to an efficient steam generator with a built-in voltage stabilizing function. Background Art

[0002] A steam generator, also known as a steam heat source machine (commonly known as a boiler), is a mechanical device that uses the heat energy of fuel or other energy sources to heat water into hot water or steam. Most traditional steam generators use a pressure relief valve to release excess steam. However, the pressure relief valve is prone to blockage, resulting in large pressure fluctuations and affecting the stability of the steam supply system. During the use of the steam generator, its internal pressure and internal temperature change during the continuous steam supply process, and the external pressure and external temperature also change due to the heat transfer of the furnace body. If the voltage stabilizing control of the steam generator cannot be achieved in a closed space, dangerous accidents are extremely likely to occur.

[0003] It should be noted that in the process of steam supply, factors that have a constant impact on steam generation include but are not limited to: internal pressure, internal temperature, external pressure, and external temperature. Among them, the internal pressure and internal temperature can be intelligently controlled through the PID control technology in the prior art. However, the internal pressure and internal temperature, combined with the external pressure and external temperature, are easily interfered by various influencing factors during steam generation, resulting in fluctuations. At the same time, during the pressure stabilization process, the steam stored in the external steam storage component entering the steam generator is likely to affect the furnace pressure, causing mutual interference under the condition of changes in external pressure and external temperature, making it more difficult to achieve stable control.

[0004] Therefore, this application proposes a solution. Summary of the Invention

[0005] During the use of the present invention, a temperature and pressure change set is formed by the difference between the radial average temperature and pressure data and the radial comparative temperature and pressure data, the difference between the axial average temperature and pressure data and the axial comparative temperature and pressure data, and the corresponding acquisition time points. Through the temperature and pressure change set, a comparison and analysis of the temperature and pressure change amplitude and the temperature and pressure change speed are completed to obtain a heat transfer ratio signal. Then, the opening degrees of the steam inlet valve and the steam outlet valve are adjusted, and the flow rate of the heat transfer medium in the heat transfer straight pipe is controlled to achieve the balance of the temperature and pressure data on both sides of the follow-up voltage stabilizing component, ensuring that the steam generator has the function of making adaptive stable control according to the changes in external pressure and external temperature during the steam generation process, and ensuring the smooth output of the steam produced by the furnace body. Thus, an efficient steam generator with a built-in voltage stabilizing function is proposed.

[0006] The object of the present invention can be achieved by the following technical solutions: an efficient steam generator with built-in voltage stabilization function, including a follow-up voltage stabilization component, the follow-up voltage stabilization component is communicatively connected to an intelligent control platform, and the intelligent control platform includes an internal domain data monitoring end, an external domain data monitoring end, a pressure balance calculation end and a voltage stabilization control end;

[0007] The internal domain data monitoring end is used to collect the internal domain temperature and pressure data inside the follow-up voltage stabilization component during the operation of the steam generator, and send the internal domain temperature and pressure data to the pressure balance calculation end; the external domain data monitoring end is used to collect the external domain temperature and pressure data of the external environment during the operation of the steam generator, and send the external domain temperature and pressure data to the pressure balance calculation end;

[0008] The pressure balance calculation end compares and analyzes the received internal domain temperature and pressure data and external domain temperature and pressure data with a calibration threshold to generate a heat transfer ratio signal, and sends the heat transfer ratio signal to the voltage stabilization control end to control relevant components to perform actions.

[0009] Further set as: the follow-up voltage stabilization component includes a lower tank body, an upper tank body and a steam storage tank, a heat transfer straight pipe is jointly installed at the middle positions inside the lower tank body and the upper tank body, an inner sleeve and an outer sleeve are sequentially sleeved outside the heat transfer straight pipe, an exhaust pipe and a branch pipe are installed through the upper end of the upper tank body, and the branch pipe is communicated with the steam storage tank.

[0010] Further set as: one side of the upper end of the steam storage tank is provided with a reduced-diameter pipe connected to the branch pipe, a diversion inclined plate is inclinedly installed inside the steam storage tank corresponding to the reduced-diameter pipe, a steam outlet channel is opened in the middle of the diversion inclined plate, and a rectifying spiral plate is installed at the lower end of the diversion inclined plate, a widened pipe penetrates through the middle of the top end of the steam storage tank, and a defoaming grid frame with a conical structure is installed at the inner top of the steam storage tank.

[0011] Further set as: a spiral return pipe is wound around the outside of the inner sleeve, and exhaust ports are evenly opened at the upper end of the outer sleeve.

[0012] Further set as: the internal domain data monitoring end uses temperature sensors and pressure sensors arranged at different heights in the follow-up voltage stabilization component to collect data, and records the collected temperature data and pressure data as initial data;

[0013] Among them, the temperature sensors and pressure sensors are arranged axially and equidistantly in a circumferential manner in the follow-up voltage stabilization component.

[0014] Further set as: the internal domain data monitoring end sequentially compares adjacent initial data in the same radial plane, and deletes the data if the difference is greater than the set value, otherwise retains and marks it as radial initial data;

[0015] The inner domain data monitoring end performs arithmetic averaging on the radial initial data to obtain the radial average temperature and pressure data;

[0016] The inner domain data monitoring end selects the initial temperature and pressure data along the axis in the follow-up pressure stabilizing component, performs difference calculation on the adjacent initial temperature and pressure data to obtain the adjacent temperature and pressure difference, compares the adjacent temperature and pressure difference with the temperature and pressure difference threshold, thereby deleting or retaining the adjacent temperature and pressure difference. The retained adjacent temperature and pressure difference is marked as the axial initial data, and then arithmetic averaging is performed on the axial initial data to obtain the axial average temperature and pressure data.

[0017] Further set as: The outer domain data monitoring end uses temperature sensors and pressure sensors at different heights arranged on the outer wall of the follow-up pressure stabilizing component to collect data, and marks the collected outer domain temperature and pressure data as comparison data. The installation positions of the two groups of temperature sensors and pressure sensors inside and outside are horizontally corresponding;

[0018] The outer domain data monitoring end obtains the radial comparison temperature and pressure data and the axial comparison temperature and pressure data through numerical calculation of the comparison data.

[0019] Further set as: The method for the pressure balance calculation end to perform regional heat transfer ratio control is:

[0020] The pressure balance calculation end takes the projection of the central axis of the follow-up pressure stabilizing component as the center point, divides the follow-up pressure stabilizing component into multiple regions, records the difference between the radial average temperature and pressure data and the radial comparison temperature and pressure data, the difference between the axial average temperature and pressure data and the axial comparison temperature and pressure data, and the corresponding acquisition time points in the region, and obtains the temperature and pressure change set in each region;

[0021] The pressure balance calculation end performs ratio calculation on the adjacent temperature and pressure difference and the interval time in the temperature and pressure change set to obtain the temperature and pressure change speed of each region, and the temperature and pressure difference is marked as the temperature and pressure change amplitude.

[0022] The present invention has the following beneficial effects:

[0023] 1. In the present invention, the steam inlet valve and the steam outlet valve arranged on the follow-up pressure stabilizing component jointly achieve heat transfer ratio control in the process of steam production to ensure smooth output of the steam produced by the furnace body in the case of pressure fluctuations inside the furnace body caused by interference from external pressure and external temperature;

[0024] 2. In the present invention, a temperature and pressure change set is constituted by the difference between the radial average temperature and pressure data and the radial comparison temperature and pressure data, the difference between the axial average temperature and pressure data and the axial comparison temperature and pressure data, and the corresponding acquisition time points. Through the temperature and pressure change set, a comparative analysis of the temperature and pressure change amplitude and the temperature and pressure change speed is completed to obtain a heat transfer ratio signal. Based on the heat transfer ratio signal, the opening degrees of the steam inlet valve and the steam outlet valve are adjusted, and the flow rate of the heat transfer medium in the heat transfer straight pipe is controlled, so as to achieve the balance of the temperature and pressure data on both sides of the follow-up voltage stabilizing component, and ensure that the steam generator has the function of making adaptive and stable control according to the changes of the external pressure and the external temperature during the steam generation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 Structural schematic diagram of the present invention;

[0027] Figure 2 Bottom view structural schematic diagram of the present invention;

[0028] Figure 3 Front view sectional view of the present invention;

[0029] Figure 4 Schematic diagram of the flow direction of the heat transfer medium in the present invention;

[0030] Figure 5 Schematic diagram of the flow direction of the steam in the present invention;

[0031] Figure 6 Partial structural sectional view of the steam storage tank in the present invention;

[0032] Figure 7 Structural schematic diagram of the steam guiding component in the present invention.

[0033] In the figure: 1. Lower tank body; 2. Upper tank body; 3. Steam storage tank; 4. Exhaust pipe; 5. Branch pipe; 6. Reducing pipe; 7. Expanding pipe; 8. Inner sleeve; 9. Outer sleeve; 10. Heat transfer straight pipe; 11. Exhaust port; 12. Spiral return pipe; 13. Guide inclined plate; 14. Rectifying spiral plate; 15. Demisting grid; 16. Steam outlet channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0035] Embodiment 1: Aiming at the problem that mutual interference will occur due to changes in external pressure and external temperature during the steam production process, resulting in difficult control of steam pressure fluctuations, the following technical solutions are proposed:

[0036] Refer to Figure 1 - Figure 7 As shown, the high-efficiency steam generator with built-in voltage stabilization function in this embodiment includes a follow-up voltage stabilization component. The follow-up voltage stabilization component includes a lower tank 1, an upper tank 2, and a steam storage tank 3. A heat transfer straight pipe 10 is jointly installed at the middle position inside the lower tank 1 and the upper tank 2. An inner sleeve 8 and an outer sleeve 9 are sequentially sleeved outside the heat transfer straight pipe 10;

[0037] An exhaust pipe 4 and a branch pipe 5 are installed through the upper end of the upper tank 2. The branch pipe 5 is communicated with the steam storage tank 3. A diameter-expanding pipe 7 penetrates through the middle of the top of the steam storage tank 3. Steam outlet valves are installed on both the exhaust pipe 4 and the diameter-expanding pipe 7, and an inlet valve is provided on the branch pipe 5 for regulating the steam pressure in the follow-up voltage stabilization component;

[0038] A diameter-reducing pipe 6 connected to the branch pipe 5 is installed on one side of the upper end of the steam storage tank 3. A diversion inclined plate 13 is installed obliquely inside the steam storage tank 3 corresponding to the diameter-reducing pipe 6. An air outlet channel 16 is opened in the middle of the diversion inclined plate 13, and a rectifying spiral plate 14 is installed at the lower end of the diversion inclined plate 13. A defoaming grid 15 with a conical structure is installed on the inner top of the steam storage tank 3; A spiral return pipe 12 is wound around the outside of the inner sleeve 8, and exhaust ports 11 are evenly opened at the upper end of the outer sleeve 9.

[0039] Basic principle: The inlet valve and the outlet valve provided on the follow-up voltage stabilization component jointly realize heat transfer ratio control for the pressure fluctuations inside the furnace body caused by interference from external pressure and external temperature during the steam production process, thereby ensuring the smooth output of the steam produced by the furnace body.

[0040] Embodiment 2: Aiming at the problem of how to intelligently set the heat transfer ratio control of the inlet valve and the outlet valve to ensure the smooth output of the steam produced by the furnace body;

[0041] It includes a follow-up voltage stabilization component, and the follow-up voltage stabilization component is communicatively connected to an intelligent control platform. The intelligent control platform includes an internal domain data monitoring end, an external domain data monitoring end, a pressure balance calculation end, and a voltage stabilization control end;

[0042] The inner domain data monitoring terminal is used to collect the inner domain temperature and pressure data inside the follow-up pressure stabilizing component during the operation of the steam generator, and send the inner domain temperature and pressure data to the pressure balance calculation terminal; the outer domain data monitoring terminal is used to collect the outer domain temperature and pressure data of the external environment during the operation of the steam generator, and send the outer domain temperature and pressure data to the pressure balance calculation terminal;

[0043] Specifically as follows: The inner domain data monitoring terminal uses temperature sensors and pressure sensors set at different heights in the follow-up pressure stabilizing component to collect data, and records the collected temperature data and pressure data as initial data; the temperature sensors and pressure sensors among them are arranged axially and equidistantly in the circumferential direction in the follow-up pressure stabilizing component;

[0044] The inner domain data monitoring terminal compares the adjacent initial data in the same radial plane in sequence. If the difference is greater than the set value, the data is deleted, otherwise it is retained and marked as radial initial data; the inner domain data monitoring terminal performs arithmetic averaging on the radial initial data to obtain the radial average temperature and pressure data;

[0045] The inner domain data monitoring terminal selects the initial temperature and pressure data along the axis in the follow-up pressure stabilizing component, calculates the difference between adjacent initial temperature and pressure data to obtain the adjacent temperature and pressure difference, and compares the adjacent temperature and pressure difference with the temperature and pressure difference threshold, so as to delete or retain the adjacent temperature and pressure difference. The retained adjacent temperature and pressure difference is marked as axial initial data, and then arithmetic averaging is performed on the axial initial data to obtain the axial average temperature and pressure data;

[0046] In addition, the outer domain data monitoring terminal uses temperature sensors and pressure sensors set at different heights on the outer wall of the follow-up pressure stabilizing component to collect data, and marks the collected outer domain temperature and pressure data as comparison data. The setting positions of the inner and outer two groups of temperature sensors and pressure sensors correspond horizontally; the outer domain data monitoring terminal obtains the radial comparison temperature and pressure data and the axial comparison temperature and pressure data through numerical calculation of the comparison data;

[0047] The pressure balance calculation terminal compares and analyzes the received inner domain temperature and pressure data and outer domain temperature and pressure data with the calibration threshold to generate a heat transfer ratio signal, and sends the heat transfer ratio signal to the voltage stabilizing control terminal to control the relevant components to perform actions; specifically as follows, the method for the pressure balance calculation terminal to perform regional heat transfer ratio control is:

[0048] The pressure balance calculation terminal takes the projection of the central axis of the follow-up pressure stabilizing component as the center point, divides the follow-up pressure stabilizing component into multiple regions, records the difference between the radial average temperature and pressure data and the radial comparison temperature and pressure data in the region, the difference between the axial average temperature and pressure data and the axial comparison temperature and pressure data, and the corresponding acquisition time points, and obtains the temperature and pressure change set in each region;

[0049] The pressure balance calculation end calculates the ratio of the adjacent temperature and pressure difference in the temperature and pressure change set to the interval time to obtain the temperature and pressure change speed of each region, and the temperature and pressure difference is marked as the temperature and pressure change amplitude.

[0050] The pressure balance calculation end compares the temperature and pressure change speed and the temperature and pressure change amplitude with the calibration threshold respectively, and generates a heat transfer ratio signal according to the comparison result; and sends the heat transfer ratio signal to the voltage stabilization control end to control the opening degrees of the steam inlet valve and the steam outlet valve and control the flow rate of the heat transfer medium in the heat transfer straight pipe 10. The heat transfer ratio is obtained according to the comparison of the temperature and pressure change speed and the temperature and pressure change amplitude with the calibration threshold respectively. If both the temperature and pressure change speed and the temperature and pressure change amplitude are not within the calibration threshold, a pressure reduction signal is generated and the opening degrees of the steam inlet valve and the steam outlet valve are controlled respectively to achieve the purpose of pressure reduction and promote the balance of the internal and external pressures; if the temperature and pressure change speed and the temperature and pressure change amplitude are within the calibration threshold, no signal is generated;

[0051] In summary, the balance of the temperature and pressure data on both sides of the follow-up voltage stabilization component is realized, ensuring that the steam generator has the function of making adaptive stable control according to the changes of the external pressure and the external temperature during the process of generating steam.

[0052] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments.

Claims

1. A high-efficiency steam generator with built-in voltage stabilization function, comprising a follow-up voltage stabilization component, wherein the follow-up voltage stabilization component is communicatively connected to an intelligent control platform, and is characterized in that: The intelligent control platform includes an internal domain data monitoring terminal, an external domain data monitoring terminal, a pressure balance measurement terminal and a pressure stabilization control terminal; The internal domain data monitoring end is used to collect the internal domain temperature and pressure data inside the follow-up pressure stabilizing component during the operation of the steam generator, and send the internal domain temperature and pressure data to the pressure balance measurement end; the external domain data monitoring end is used to collect the external domain temperature and pressure data of the external environment during the operation of the steam generator, and send the external domain temperature and pressure data to the pressure balance measurement end; The pressure balance measuring end compares and analyzes the received internal domain temperature and pressure data and external domain temperature and pressure data with the calibration threshold to generate a heat transfer ratio signal, and sends the heat transfer ratio signal to the voltage stabilizing control end to control related components to perform actions.

2. The high-efficiency steam generator with built-in pressure stabilization function according to claim 1, characterized in that: The follow-up pressure stabilizing assembly comprises a lower tank body (1), an upper tank body (2) and a steam storage tank (3); a heat transfer straight pipe (10) is installed in the middle position of the lower tank body (1) and the upper tank body (2); an inner sleeve (8) and an outer sleeve (9) are sequentially sleeved on the outside of the heat transfer straight pipe (10); an exhaust pipe (4) and a branch pipe (5) are installed through the upper end of the upper tank body (2); and the branch pipe (5) is connected to the steam storage tank (3).

3. The high-efficiency steam generator with built-in pressure stabilization function according to claim 2, characterized in that: A reducing pipe (6) connected to a branch pipe (5) is installed on one side of the upper end of the steam storage tank (3); a guide inclined plate (13) is installed obliquely inside the steam storage tank (3) corresponding to the reducing pipe (6); a steam outlet channel (16) is opened in the middle of the guide inclined plate (13); and a rectifying spiral plate (14) is installed at the lower end of the guide inclined plate (13); an expanding pipe (7) passes through the middle of the top end of the steam storage tank (3); and a defoaming grid frame (15) with a cone structure is installed at the inner top of the steam storage tank (3).

4. The high-efficiency steam generator with built-in pressure stabilization function according to claim 2, characterized in that: A spiral reflux pipe (12) is wound around the outer side of the inner sleeve (8), and evenly distributed steam exhaust ports (11) are opened at the upper end of the outer sleeve (9).

5. The high-efficiency steam generator with built-in pressure stabilization function according to claim 1, characterized in that: The internal domain data monitoring end uses temperature sensors and pressure sensors arranged at different heights in the follow-up voltage stabilization component to collect data, and records the collected temperature data and pressure data as initial data; The temperature sensor and the pressure sensor are arranged in the follow-up voltage stabilizing assembly axially and circumferentially at equal distances.

6. The high-efficiency steam generator with built-in pressure stabilization function according to claim 5, characterized in that: The inner domain data monitoring terminal compares adjacent initial data in the same radial plane in sequence, and deletes the data if the difference is greater than a set value, otherwise it is retained and marked as radial initial data; The inner domain data monitoring terminal performs arithmetic averaging on the radial initial data to obtain radial average temperature and pressure data; The inner domain data monitoring end selects the initial temperature and pressure data along the axial direction in the follow-up pressure stabilization component, and performs difference calculation on adjacent initial temperature and pressure data to obtain adjacent temperature and pressure differences, and compares the adjacent temperature and pressure differences with the temperature and pressure difference threshold, thereby deleting or retaining the adjacent temperature and pressure differences, and the retained adjacent temperature and pressure differences are marked as axial initial data, and then the axial initial data are arithmetic averaged to obtain axial average temperature and pressure data.

7. The high-efficiency steam generator with built-in pressure stabilization function according to claim 6, characterized in that: The external domain data monitoring end uses temperature sensors and pressure sensors set at different heights on the outer wall of the follow-up voltage stabilization component to collect data, and marks the collected external domain temperature and pressure data as comparison data. The setting positions of the two groups of temperature sensors and pressure sensors inside and outside correspond horizontally; The external domain data monitoring end performs numerical calculation on the comparison data to obtain radial comparison temperature and pressure data and axial comparison temperature and pressure data.

8. The high-efficiency steam generator with built-in pressure stabilization function according to claim 1, characterized in that: The method for controlling the regional heat transfer ratio at the pressure balance measuring end is: The pressure balance measuring end divides the follow-up pressure stabilizing assembly into multiple areas with the projection of the central axis of the follow-up pressure stabilizing assembly as the center point, and records the radial average temperature and pressure data and the radial comparative temperature and pressure data difference, the axial average temperature and pressure data and the axial comparative temperature and pressure data difference and the corresponding acquisition time points in the area, and obtains the temperature and pressure change set in each area; The pressure balance measurement end calculates the ratio of adjacent temperature and pressure difference values ​​and interval time in the temperature and pressure change set to obtain the temperature and pressure change speed of each area, and the temperature and pressure difference value is marked as the temperature and pressure change amplitude.

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