Method for restoring a descaling system

Abstract

This application discloses a method for restoring a descaling system. The method involves increasing the pressure of the accumulator to be restored to the minimum operating pressure of the descaling system, where the minimum operating pressure is lower than the calibrated operating pressure of the accumulator. The temporary operating pressure of the accumulator is adjusted according to the minimum operating pressure to enable it to operate. This temporary operating pressure includes temporary makeup water pressure and temporary supply water pressure. The accumulator can then undergo makeup water and supply water circulation. The descaling system is then activated, during which the accumulator is pressurized and the temporary operating pressure is intermittently increased until it matches the calibrated operating pressure. The restoration process of the accumulator is synchronized with the operation of the descaling system and the accumulator itself, thus enabling descaling. This method significantly reduces the time required for the accumulator to restore to its calibrated operating pressure, effectively mitigating the impact of prolonged descaling system downtime on rolling efficiency.

Description

Technical Field

[0001] This application belongs to the field of metal rolling technology, and in particular relates to a method for restoring a descaling system. Background Technology

[0002] The descaling system is a common structure in hot strip rolling lines, primarily used to remove iron oxide scale that appears on the surface of the strip during rolling, preventing it from affecting the final strip. The descaling system includes a descaling pump, a spraying structure, and a recovery accumulator. The descaling pump delivers water to the spraying structure for descaling, or it can work in conjunction with the recovery accumulator connected to the spraying structure to supply water, causing the spraying structure to spray high-pressure water for descaling. The descaling system also includes valve structures between various devices. When these valve structures malfunction, the liquid and gas in the recovery accumulator can easily escape, and the operation of the descaling pump alone cannot meet the high-pressure water requirements for descaling of some steel grades. Therefore, it is necessary to shut down and restore the descaling system.

[0003] In existing technology, the steps for restoring a descaling system include: after addressing the fault that caused the accumulator to be restored to run dry, isolating the accumulator to be restored from the injection structure and the descaling pump, and replenishing the accumulator with some liquid. Then, continuously replenishing the accumulator with gas until its pressure returns to its calibrated operating pressure, and then restarting the entire descaling system. During the descaling system restoration process, the recovery time of the accumulator to be restored is relatively long, resulting in a prolonged restoration time for the entire descaling system. Furthermore, the descaling system remains shut down during the accumulator recovery process, severely impacting the production efficiency of steel rolling. Summary of the Invention

[0004] This application aims to at least partially address the problem of long recovery times for accumulators that negatively impact steel rolling production efficiency. To this end, this application provides a method for restoring a descaling system.

[0005] This application provides a method for restoring a descaling system, which is applied to a descaling system including an accumulator to be restored. The method includes:

[0006] The pressure of the accumulator to be restored is increased to the minimum working pressure of the descaling system. The minimum working pressure is less than the rated working pressure of the accumulator to be restored. The rated working pressure includes the rated water replenishment pressure and the rated water supply pressure.

[0007] The temporary working pressure of the accumulator to be restored is adjusted according to the minimum working pressure, and the temporary working pressure includes the temporary water replenishment pressure and the temporary water supply pressure.

[0008] The descaling system is activated, and during operation, the accumulator to be restored is pressurized and the temporary working pressure is intermittently increased until the temporary working pressure is the same as the calibrated working pressure.

[0009] Optionally, the phrase "pressurizing the accumulator to be restored and intermittently increasing the temporary working pressure during operation" includes:

[0010] During operation, the pressure is continuously increased to the accumulator to be restored, and the temporary working pressure is increased once every time the pressure is increased.

[0011] Optionally, the phrase "pressurizing the accumulator to be restored and intermittently increasing the temporary working pressure during operation" includes:

[0012] During operation, the accumulator to be restored is pressurized, and the temporary working pressure is intermittently increased by the same amount.

[0013] Optionally, the step of "increasing the pressure of the accumulator to be restored to the minimum operating pressure" includes:

[0014] The accumulator to be restored is pressurized to the minimum operating pressure, and the liquid level of the accumulator to be restored corresponds to the minimum operating pressure.

[0015] Optionally, the step of "pressurizing the accumulator to be restored to the minimum operating pressure" includes:

[0016] Liquid is added to the accumulator to be restored until the pressure of the accumulator rises to a pressure threshold range, which is the pressure range within which the accumulator can retain gas.

[0017] Gas is supplied to the accumulator to be restored until the pressure of the accumulator to be restored reaches the minimum operating pressure.

[0018] Optionally, the step of "making the liquid level of the accumulator to be restored correspond to the minimum operating pressure" includes:

[0019] The ratio of the liquid level of the accumulator to be restored to the highest liquid level of the accumulator to be restored is equal to the ratio of the lowest working pressure to the calibrated water supply pressure.

[0020] Optionally, the step of "adjusting the temporary operating pressure of the accumulator to be restored according to the minimum operating pressure" includes:

[0021] The temporary water supply pressure of the accumulator to be restored is adjusted to be equal to the minimum working pressure, and the temporary water supply pressure is determined based on the temporary water supply pressure.

[0022] Optionally, the step of "determining the temporary water supply pressure based on the temporary water replenishment pressure" includes:

[0023] The temporary water supply pressure is obtained by superimposing the temporary water replenishment pressure with the fixed pressure value.

[0024] Optionally, before pressurizing the accumulator to be restored to the minimum operating pressure, the descaling system restoration method further includes:

[0025] The gas in the liquid pipeline connected to the accumulator to be restored in the descaling system is discharged.

[0026] Optionally, before pressurizing the accumulator to be restored to the minimum operating pressure, the descaling system restoration method further includes:

[0027] If there are at least two energy storage devices to be restored, then at least two energy storage devices to be restored are connected and each energy storage device to be restored contains liquid.

[0028] The embodiments of this application have at least the following beneficial effects:

[0029] For a descaling system including a accumulator to be restored, the pressure in the accumulator is increased to the minimum operating pressure of the descaling system, which is lower than the calibrated operating pressure of the accumulator (including the calibrated makeup water pressure and the calibrated supply water pressure). Since the pressure inside the accumulator is lower than its calibrated operating pressure during normal operation, the accumulator has not yet returned to normal operation. Then, the temporary operating pressure of the accumulator is adjusted according to the minimum operating pressure to enable it to operate. This temporary operating pressure includes the temporary makeup water pressure and the temporary supply water pressure. The accumulator, which has not reached its normal operating state, can then receive and supply water when its internal pressure reaches the temporary makeup water pressure and temporary supply water pressure, respectively, enabling the makeup water and supply water cycle that occurs during normal operation. The descaling system is then activated, and during operation, the pressure in the accumulator is increased and the temporary operating pressure is intermittently raised until it matches the calibrated operating pressure. The recovery process of the accumulator to be recovered is synchronized with the operation of the descaling system and the accumulator to be recovered, allowing descaling for some steel grades with less stringent pressure requirements. The downtime of the descaling system is only the time required for the accumulator to be recovered to pressurize to the minimum working pressure and determine the temporary working pressure. Compared to a full shutdown, this significantly reduces the time required for the accumulator to recover to its calibrated working pressure, effectively mitigating the impact of excessive downtime of the descaling system due to the recovery of the accumulator to be recovered on rolling efficiency. Attached Figure Description

[0030] Figure 1 This is a simplified structural diagram of a descaling system provided in this application.

[0031] Figure 2 A flowchart of a descaling system restoration method provided in this application.

[0032] Figure 3 A flowchart of another descaling system restoration method provided in this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Descaling pump; 2. Accumulator to be restored; 3. Jet structure; 4. Liquid pipeline; 5. Control valve assembly; 6. Pressure gauge; 7. Pneumatic assembly; 71. Gas tank; 72. Air compressor unit; 73. Gas pipeline; 74. Inflation valve assembly. Detailed Implementation

[0034] To enable those skilled in the art to better understand this application, the technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] This application provides a method for restoring a descaling system. For ease of understanding, before describing the method in detail, the structure of the descaling system is illustrated. Figure 1 This is a simplified structural diagram of a descaling system provided in this application, with reference to... Figure 1 It can be seen that the descaling system may include a descaling pump 1, a recovery accumulator 2, and a jetting structure 3, which are interconnected via liquid pipes 4. The input end of the descaling pump 1 is connected to a water source, and the output end of the descaling pump 1 can be connected to the liquid input end of the recovery accumulator 2 and the input end of the jetting structure 3. The liquid output end of the recovery accumulator 2 is connected to the input end of the jetting structure 3. This enables the basic descaling function of the descaling system, and the descaling pump 1 can work with the recovery accumulator 2 to jet out a relatively high-pressure water flow.

[0036] In some embodiments provided in this application, the descaling system may include a control valve group 5 that simultaneously controls the on / off connection between the accumulator to be restored 2, the injection structure 3, and the descaling pump 1. The control valve group 5 may include a check valve and a shut-off valve connected in parallel. The input end of each valve in the control valve group 5 is connected to the accumulator to be restored 2, and the output end of each valve in the control valve group 5 may be connected to the injection structure 3 or the descaling pump 1.

[0037] In some embodiments provided in this application, the injection structure 3 may be a type of injection valve or nozzle, and this application does not limit this. Both the descaling pump 1 and the injection structure 3 can be configured as at least two depending on actual needs, and this application does not limit this.

[0038] In some embodiments provided in this application, at least two accumulators 2 to be restored may be configured. The descaling system may also include pressure gauges 6 corresponding one-to-one with each of the accumulators 2 to be restored. Pressure changes in the accumulators 2 to be restored can be monitored and fed back to valves or descaling pumps 1 and other structures in the descaling system.

[0039] In some embodiments provided in this application, the descaling system may further include a pneumatic assembly 7 corresponding to at least two accumulators 2 to be restored. The pneumatic assembly 7 may include an air tank 71 and an air compressor unit 72, the output of which may be connected to the gas input of the accumulator 2 to be restored and the input of the air tank 71. The pneumatic assembly 7 may include a gas pipeline 73 that enables interconnection between the various structures. The air compressor unit 72 can be used to replenish and pressurize the accumulators 2 to be restored, and the air tank 71 can be used to maintain stable internal air pressure within the pneumatic assembly 7.

[0040] In some embodiments provided in this application, the pneumatic assembly 7 may further include a gas control valve disposed on each gas pipeline 73. This facilitates the control of gas flow. Depending on actual needs, the gas control valve may be configured as a three-way gate valve, a shut-off valve, or a cut-off valve; this application does not impose any limitations on this.

[0041] In some embodiments provided in this application, the pneumatic assembly 7 may also include an inflation valve group 74 for simultaneously controlling the connection and disconnection between the air compressor unit 72 and other structures in the pneumatic assembly 7. The structure of the inflation valve group 74 may be the same as that of the control valve group 5 and its input end may be connected to the air compressor unit 72. This application will not elaborate on this.

[0042] In this application, the accumulator 2 to be restored can be a gas-liquid contact accumulator 2 or a gas-liquid separation accumulator 2 through a diaphragm. This application does not impose any restrictions on this.

[0043] by Figure 1 The provided structural example of the descaling system briefly illustrates its workflow. Details are as follows:

[0044] When water is used in the area requiring descaling, the jet valve opens, and the required high-pressure water is supplied by the accumulator 2. The jet valve opens and descaling begins, and the water level in the accumulator 2 starts to drop, while the descaling pump 1 remains inactive. When the pressure in the accumulator 2 drops to the calibrated replenishment pressure, the jet valve closes, and the descaling pump 1 accelerates to replenish the consumed high-pressure water to the accumulator 2. When the pressure in the accumulator 2 reaches the calibrated supply pressure, the descaling pump 1 slows down and switches to inactive mode, completing one work cycle. This work cycle is repeated to perform descaling cyclically.

[0045] It should be noted that the descaling system provided in this application is for illustrative purposes only, to facilitate understanding of the solutions described below. In some embodiments of this application, the descaling system may also be configured to include only a descaling pump 1 and a accumulator to be restored 2, with descaling achieved through a spray point on the connecting pipe between the two. This application does not impose any limitations on this.

[0046] Figure 2 A flowchart of a descaling system restoration method provided in this application is shown below. Figure 2 It is understood that the descaling system restoration method provided in this application embodiment can be applied to the aforementioned descaling system including the accumulator to be restored. The descaling system restoration method includes:

[0047] S101: Increase the pressure of the accumulator to be restored to the minimum working pressure of the descaling system. The minimum working pressure is less than the rated working pressure of the accumulator to be restored. The rated working pressure includes the rated water replenishment pressure and the rated water supply pressure.

[0048] S102: Adjust the temporary working pressure of the accumulator to be restored according to the minimum working pressure. The temporary working pressure includes the temporary water replenishment pressure and the temporary water supply pressure.

[0049] S103: Enables the descaling system to operate. During operation, the accumulator to be restored is pressurized and the temporary working pressure is intermittently increased until the temporary working pressure is the same as the calibrated working pressure.

[0050] For a descaling system including a accumulator to be restored, the pressure in the accumulator is increased to the minimum operating pressure of the descaling system, which is lower than the calibrated operating pressure of the accumulator (including the calibrated makeup water pressure and the calibrated supply water pressure). Since the pressure inside the accumulator is lower than its calibrated operating pressure during normal operation, the accumulator has not yet returned to normal operation. Then, the temporary operating pressure of the accumulator is adjusted according to the minimum operating pressure to enable it to operate. This temporary operating pressure includes the temporary makeup water pressure and the temporary supply water pressure. The accumulator, which has not reached its normal operating state, can then receive and supply water when its internal pressure reaches the temporary makeup water pressure and temporary supply water pressure, respectively, enabling the makeup water and supply water cycle that occurs during normal operation. The descaling system is then activated, and during operation, the pressure in the accumulator is increased and the temporary operating pressure is intermittently raised until it matches the calibrated operating pressure. The recovery process of the accumulator to be recovered is synchronized with the operation of the descaling system and the accumulator to be recovered, allowing descaling for some steel grades with less stringent pressure requirements. The downtime of the descaling system is only the time required for the accumulator to be recovered to pressurize to the minimum working pressure and determine the temporary working pressure. Compared to a full shutdown, this significantly reduces the time required for the accumulator to recover to its calibrated working pressure, effectively mitigating the impact of excessive downtime of the descaling system due to the recovery of the accumulator to be recovered on rolling efficiency.

[0051] It should be noted that for accumulators of a certain specification to be restored, the existing technology, which only uses liquid replenishment and air injection, requires more than an hour to restore. The restoration method using the descaling system provided in this application can reduce the restoration time by half. In this application, the pressure of the accumulator to be restored refers to the pressure of the gas within the accumulator.

[0052] In step S103, “pressurizing the accumulator to be restored during operation and intermittently increasing the temporary working pressure” may include: continuously pressurizing the accumulator to be restored during operation, and increasing the temporary working pressure once every pressurization interval.

[0053] Continuously pressurizing the accumulator to be restored and increasing the temporary working pressure at intervals can quickly and continuously raise the internal pressure of the accumulator, ensuring a stable increase in its working pressure. Adjusting the pressurization intervals at the same time ensures that the pressure of the accumulator has reached a certain level, facilitating the adjustment of its operating state.

[0054] In some embodiments provided in this application, the pressurization period can be 20 minutes to 90 minutes. This can be applied to the adjustment of accumulators of various specifications that need to be restored.

[0055] In step S103, "pressurizing the accumulator to be restored during operation and intermittently increasing the temporary working pressure" may also include: pressurizing the accumulator to be restored during operation and intermittently increasing the temporary working pressure by the same amount.

[0056] Increasing the temporary working pressure by the same amount can be coordinated with the pressurization period to achieve stable and relatively rapid recovery of the accumulator to be restored.

[0057] In some embodiments provided in this application, the increase in temporary working pressure can be 1 / 25 to 1 / 15 each time. This enables the accumulator to be restored to recover stably and quickly.

[0058] In some embodiments provided in this application, the increase in temporary working pressure is proportional to the pressurization time interval between two temporary working pressure adjustments. This can effectively accelerate the recovery efficiency of the accumulator to be restored.

[0059] In some embodiments provided in this application, the pressurization period can be half an hour, and the temporary working pressure increase each time can be 1 / 20 of the rated water supply pressure. This can improve the recovery efficiency more quickly.

[0060] Figure 3 This application provides a flowchart of another descaling system restoration method. Figure 3 For the purpose of this application Figure 2 This provides a more detailed description of the descaling system restoration method based on the previous description. (Reference) Figure 3 It can be seen that methods for restoring a descaling system may include:

[0061] S200: Discharge the gas from the liquid pipeline connected to the accumulator to be restored in the descaling system.

[0062] Before adjusting the accumulator to be restored, the gas that has leaked into the liquid pipeline due to gas leakage from the accumulator to be restored in the descaling system should be discharged to reduce the impact of the gas on the accumulator to be restored.

[0063] In some embodiments provided in this application, a vent valve can be added to the highest point of the liquid pipeline. Before adjusting the accumulator to be restored, the vent valve is opened until liquid is discharged from the vent valve. This is convenient to operate and easy to implement.

[0064] S201: If there are at least two accumulators to be restored, then at least two accumulators to be restored are connected and each accumulator to be restored contains liquid.

[0065] The descaling system restoration method provided in this application, if the descaling system to be restored includes two accumulators to be restored, can improve the restoration efficiency of descaling systems including at least two accumulators by first connecting the two accumulators to be restored and ensuring that both accumulators contain liquid. Then, subsequent steps can be performed simultaneously on both accumulators.

[0066] Step S201 can be performed by replenishing the leaking accumulator with liquid, and then connecting at least two accumulators. Alternatively, all accumulators can be slightly replenished with liquid before connecting all accumulators. This application does not impose any limitations on this.

[0067] It should be noted that for descaling systems comprising at least two accumulators to be restored, regardless of whether one or more accumulators are leaking air, liquid can be added to connect all accumulators. The accumulators without leaking air have higher pressures, which can effectively increase the pressure of the leaking accumulators. This reduces the time required to subsequently increase the accumulators to their minimum operating pressure.

[0068] It should be noted that, since the pressure of the leaking accumulator to be restored is close to atmospheric pressure, after connecting all the accumulators to be restored, the pressure of the accumulators to be restored is usually less than the minimum operating pressure of the descaling system. The minimum operating pressure of the descaling system can be the minimum water replenishment pressure of the accumulators to be restored when the entire descaling system is operating normally. This can minimize the recovery time of the accumulators to be restored. In some embodiments provided in this application, the minimum operating pressure may also be less than the rated water replenishment pressure of the accumulators to be restored, and greater than or equal to half of the rated water replenishment pressure. This application does not impose any limitations on this. This can also reduce the overall recovery time required for the descaling system.

[0069] S202: Increase the pressure of the accumulator to be restored to the minimum working pressure of the descaling system. The minimum working pressure is less than the rated working pressure of the accumulator to be restored. The rated working pressure includes the rated makeup water pressure and the rated supply water pressure.

[0070] In step S202, "pressurizing the accumulator to be restored to the minimum operating pressure" may include:

[0071] Add liquid to the accumulator to be restored until the pressure of the accumulator to be restored rises to the pressure threshold range, which is the pressure range within which the accumulator to be restored can retain gas; add gas to the accumulator to be restored until the pressure of the accumulator to be restored rises to the minimum working pressure.

[0072] Adding liquid to the accumulator to be restored until the pressure reaches the pressure threshold range allows for the presence of a certain pressure within the accumulator. The liquid also retains gas, enabling continuous gas replenishment and pressurization. This method is easy to operate, requires minimal time, and improves the restoration efficiency of the accumulator. It is suitable for accumulators with gas-liquid contact as well as those with gas-liquid separation via a diaphragm.

[0073] In some embodiments provided in this application, the pressure can also be increased by adding liquid to the accumulator to be restored until the pressure is above the pressure threshold range, and then adding gas to increase the pressure. This application does not limit this.

[0074] In some embodiments provided in this application, the threshold pressure range can be 1 / 5 to 1 / 4 of the calibrated water replenishment pressure. A reasonable liquid level facilitates the subsequent operation of the accumulator to be restored.

[0075] In some embodiments provided in this application, the replenishment process for the accumulator to be restored may also include replenishing the accumulator to be restored with liquid using a descaling pump to 1 / 10 to 1 / 8 of the calibrated replenishment pressure, and then manually replenishing the liquid to the pressure threshold range. This allows for more accurate observation of the liquid level in the accumulator to be restored and reduces the possibility of over-replenishment by the descaling pump.

[0076] In some embodiments provided in this application, "pressurizing the accumulator to be restored to the minimum working pressure" includes: pressurizing the accumulator to be restored to the minimum working pressure and making the liquid level of the accumulator to be restored correspond to the minimum working pressure.

[0077] In some embodiments provided in this application, "making the liquid level of the accumulator to be restored correspond to the minimum working pressure" includes: making the ratio of the liquid level of the accumulator to be restored to the maximum liquid level of the accumulator equal to the ratio of the minimum working pressure to the calibrated water supply pressure. This allows the pressure to be matched with the liquid level, ensuring a more stable pressure recovery of the accumulator to be restored.

[0078] In some embodiments provided in this application, the ratio of the liquid level of the accumulator to be restored to the highest liquid level of the accumulator to be restored may also be less than the ratio of the lowest operating pressure to the calibrated water supply pressure. This application does not impose any limitations on this.

[0079] In some embodiments provided in this application, the minimum operating pressure can be half of the rated water supply pressure plus one-twentieth of the rated water supply pressure. This operating pressure ensures that the entire descaling system can perform basic descaling work.

[0080] In step S202, "replenishing the accumulator to be restored with air until the pressure of the accumulator to be restored reaches the minimum working pressure" may also include: simultaneously pressurizing the accumulator to be restored using an air compressor unit and an air tank. This improves the restoration efficiency of the accumulator to be restored.

[0081] It should be noted that the accumulator to be restored can also be pressurized solely by an air compressor unit or solely by an air tank. This application does not impose any restrictions on this. The air pressure inside the air tank does not affect the descaling operation of the descaling system.

[0082] S203: Adjust the temporary working pressure of the accumulator to be restored according to the minimum working pressure. The temporary working pressure includes the temporary water replenishment pressure and the temporary water supply pressure.

[0083] In step S203, "adjusting the temporary working pressure of the accumulator to be restored according to the minimum working pressure" may include: adjusting the temporary water supply pressure of the accumulator to be restored to be equal to the minimum working pressure and determining the temporary water supply pressure according to the temporary water supply pressure.

[0084] Adjusting the temporary water supply pressure of the accumulator to be restored to the same level as the minimum operating pressure ensures the descaling system can operate while shortening the pressurization time of the accumulator. Then, determine the temporary water supply pressure based on the temporary water supply pressure.

[0085] In some embodiments provided in this application, the temporary water replenishment pressure may be slightly greater than the minimum working pressure. When the descaling system is working, the continuous pressurization of the accumulator will allow the entire descaling system to continue operating, and the accumulator can also be restored when it is about to be restored.

[0086] In some embodiments provided in this application, "determining the temporary water supply pressure based on the temporary water replenishment pressure" may include: obtaining the temporary water supply pressure by superimposing a fixed pressure value on the temporary water replenishment pressure. This can ensure the stable operation and effective restoration of the accumulator to be restored.

[0087] In some embodiments provided in this application, the temporary working pressure can also be obtained by multiplying the calibrated working pressure by a fixed constant. This application does not impose any limitations on this.

[0088] S204: To activate the descaling system, during which the accumulator to be restored is pressurized and the temporary working pressure is intermittently increased until the temporary working pressure is the same as the calibrated working pressure.

[0089] For a detailed description of step S204, please refer to Figure 2 Step S103 in the above steps will not be repeated here.

[0090] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0091] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for restoring a descaling system, characterized in that, The descaling system restoration method is applied to a descaling system including an accumulator to be restored, and the descaling system restoration method includes: The pressure of the accumulator to be restored is increased to the minimum working pressure of the descaling system. The minimum working pressure is less than the rated working pressure of the accumulator to be restored. The rated working pressure includes the rated water replenishment pressure and the rated water supply pressure. The temporary working pressure of the accumulator to be restored is adjusted according to the minimum working pressure, the temporary working pressure including the temporary water replenishment pressure and the temporary water supply pressure; the temporary water replenishment pressure of the accumulator to be restored is adjusted to be equal to the minimum working pressure and the temporary water supply pressure is determined according to the temporary water replenishment pressure; The descaling system is activated, and during operation, the accumulator to be restored is pressurized and the temporary working pressure is intermittently increased. Specifically, during operation, the accumulator to be restored is continuously pressurized, and the temporary working pressure is increased once every pressurization interval until the temporary working pressure is the same as the calibrated working pressure.

2. The method for restoring a descaling system according to claim 1, characterized in that, The phrase "increasing the pressure of the accumulator to be restored to the minimum operating pressure of the descaling system" includes: The accumulator to be restored is pressurized to the minimum operating pressure, and the liquid level of the accumulator to be restored corresponds to the minimum operating pressure.

3. The method for restoring a descaling system according to claim 2, characterized in that, The phrase "pressurizing the accumulator to be restored to the minimum operating pressure" includes: Liquid is added to the accumulator to be restored until the pressure of the accumulator rises to a pressure threshold range, which is the pressure range within which the accumulator can retain gas. Gas is supplied to the accumulator to be restored until the pressure of the accumulator to be restored reaches the minimum operating pressure.

4. The method for restoring a descaling system according to claim 3, characterized in that, The phrase "making the liquid level of the accumulator to be restored correspond to the minimum operating pressure" includes: The ratio of the liquid level of the accumulator to be restored to the highest liquid level of the accumulator to be restored is equal to the ratio of the lowest working pressure to the calibrated water supply pressure.

5. The method for restoring a descaling system according to claim 1, characterized in that, The phrase "determining the temporary water supply pressure based on the temporary water replenishment pressure" includes: The temporary water supply pressure is obtained by superimposing the temporary water replenishment pressure with the fixed pressure value.

6. The method for restoring a descaling system according to claim 1, characterized in that, Before pressurizing the accumulator to be restored to the minimum operating pressure of the descaling system, the descaling system restoration method further includes: The gas in the liquid pipeline connected to the accumulator to be restored in the descaling system is discharged.

7. The method for restoring a descaling system according to claim 1, characterized in that, Before pressurizing the accumulator to be restored to the minimum operating pressure of the descaling system, the descaling system restoration method further includes: If there are at least two energy storage devices to be restored, then at least two energy storage devices to be restored are connected and each energy storage device to be restored contains liquid.

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