A mobile heat supply station with adjustable steam parameters

Abstract

The application provides a mobile heat supply station with adjustable steam parameters, and relates to the field of temperature and pressure adjustment. The steam storage tank of the mobile heat supply station is used for storing steam, the steam storage tank is arranged on a carrier vehicle, the desalted water tank is used for storing desalted water, the steam adjusting module mixes the steam introduced by the first drainage main pipe and the desalted water introduced by the second drainage main pipe, and outputs the mixed steam after adjusting the temperature and the pressure; the water supply device is arranged on the second drainage main pipe; the water supply device comprises an electric motor, which is used for pumping the desalted water in the desalted water tank into the steam adjusting module. The application pumps the desalted water into the steam adjusting module through the water supply device, so that the desalted water is mixed with high-temperature and high-pressure steam; and the temperature and the pressure of the output steam are controlled through the steam adjusting device, so that the steam demand of enterprises is met.

Description

Technical Field

[0001] This invention belongs to the field of temperature and pressure regulation technology, and in particular relates to a mobile heating station with adjustable steam parameters. Background Technology

[0002] Currently, industrial enterprises obtain steam primarily through two methods. For areas located near combined heat and power (CHP) power plants, enterprises typically obtain steam by constructing steam pipelines to connect to the CHP power plant's heating network. Although this method involves significant investment and complex construction of the heating network, it is generally suitable for large-scale industrial centralized heating areas located no more than 15 kilometers from the power plant.

[0003] Another option is for companies to build their own small boilers to produce steam. However, this method involves high equipment investment and operating costs, low efficiency, and significant environmental damage. For companies without a centralized steam supply nearby, with low steam demand and intermittent steam usage during production, obtaining the necessary steam is difficult. Summary of the Invention

[0004] In view of this, the present invention provides a mobile heating station with adjustable steam parameters to meet the different temperature and pressure requirements of steam-using enterprises.

[0005] The technical solution of this invention is implemented as follows:

[0006] This invention provides a mobile heating station with adjustable steam parameters, comprising: a transport vehicle; a steam storage tank for storing steam, the steam storage tank being mounted on the transport vehicle, the outlet of the steam storage tank being connected to a first main drain pipe; a demineralized water tank for storing demineralized water, the demineralized water tank being mounted on the transport vehicle or the steam storage tank; the outlet of the demineralized water tank being connected to a second main drain pipe; a steam regulating module, connected to both the first and second main drain pipes, for mixing and regulating the temperature and pressure of steam introduced through the first main drain pipe and demineralized water introduced through the second main drain pipe before outputting; and a water supply device mounted on the second main drain pipe; the water supply device includes an electric motor for pumping demineralized water from the demineralized water tank into the steam regulating module.

[0007] In one embodiment, the steam regulating module includes multiple first drainage branch pipes and multiple second drainage branch pipes. Each first drainage branch pipe is connected to a first drainage main pipe, and each second drainage branch pipe is connected to a second drainage main pipe, and the second drainage branch pipes are connected in parallel. Each first drainage branch pipe and each second drainage branch pipe are connected in a one-to-one correspondence. A first regulating valve is provided at the inlet of each first drainage branch pipe, and a first isolation valve is provided at the outlet. A second regulating valve is provided on each second drainage branch pipe. A de-heating and pressure reducing device is provided at the junction of each first drainage branch pipe and each second drainage branch pipe.

[0008] In one embodiment, the steam regulating module further includes multiple connecting pipes; one end of each connecting pipe is connected to the outlet of one of the desuperheating and pressure reducing devices, and the other end is connected to the inlet of another desuperheating and pressure reducing device; a second isolation valve is provided on each connecting pipe.

[0009] In one embodiment, a steam flow meter is installed on the first drainage branch pipe, and the steam flow meter is located in front of the de-cooling and pressure reducing device to detect the flow rate entering the de-cooling and pressure reducing device.

[0010] In one embodiment, the system further includes a bypass pipe and a bypass regulating valve assembly disposed on the bypass pipe. One end of the bypass pipe is connected to the demineralized water tank, and the other end is connected to the second main drain pipe.

[0011] In one embodiment, the water supply device further includes a hydraulic motor, which is connected in parallel with the electric motor.

[0012] In one embodiment, a pressure balancing piston is further included. The pressure balancing piston is disposed inside the steam storage tank to divide the space inside the steam storage tank into a first space and a second space. The first space is used to store steam, and the second space is used to store demineralized water. A demineralized water pipe is disposed on the outer wall of the steam storage tank. One end of the demineralized water pipe is connected to the second space, and the other end is connected to the second main drain pipe. A third shut-off valve is disposed on the demineralized water pipe. The pressure balancing piston is movable under the action of the demineralized water in the second space to maintain the pressure in the first space.

[0013] In one embodiment, the outer wall of the steam storage tank is provided with temperature measuring instruments and / or pressure measuring instruments to monitor the temperature and pressure of the steam in the first space.

[0014] In one embodiment, a controller is also included, which is connected to the steam regulating module, the water supply device, and the bypass regulating valve group, respectively.

[0015] This invention also provides a method for regulating a mobile heating station. This method is based on a mobile heating station with adjustable steam parameters. The mobile heating station includes: a transport vehicle; a steam storage tank for storing steam, the steam storage tank being mounted on the transport vehicle, and the outlet of the steam storage tank being connected to a first main drain pipe; a demineralized water tank for storing demineralized water, the demineralized water tank being mounted on the transport vehicle or the steam storage tank; the outlet of the demineralized water tank being connected to a second main drain pipe; a steam regulating module connected to both the first and second main drain pipes to mix and regulate the temperature and pressure of steam introduced through the first main drain pipe and demineralized water introduced through the second main drain pipe before outputting the mixture; and a water supply device mounted on the second main drain pipe; the water supply device includes an electric motor to pump demineralized water from the demineralized water tank into the steam regulating module. The steam regulating module includes multiple first drainage branch pipes and multiple second drainage branch pipes. Each first drainage branch pipe is connected to a first drainage main pipe, and each second drainage branch pipe is connected to a second drainage main pipe, and the second drainage branch pipes are connected in parallel. Each first drainage branch pipe and each second drainage branch pipe are connected in a one-to-one correspondence. Each first drainage branch pipe has a first regulating valve at its inlet and a first isolation valve at its outlet. Each second drainage branch pipe has a second regulating valve. A desuperheating and pressure reducing device is installed at the junction of each first drainage branch pipe and each second drainage branch pipe. The steam regulating module also includes multiple connecting pipes. One end of each connecting pipe is connected to the outlet of one of the desuperheating and pressure reducing devices, and the other end is connected to the inlet of another desuperheating and pressure reducing device. A second isolation valve is installed on each connecting pipe.

[0016] The adjustment method for the mobile heating station includes the following steps:

[0017] Obtain the target steam output parameters;

[0018] Determine the target combination mode for activating the desuperheating and pressure reducing device based on the target steam output parameters;

[0019] The first drainage branch, the second drainage branch, and the connecting pipe to be opened are determined according to the target combination method;

[0020] The first regulating valve on the first drainage branch pipe is opened according to the determination that the first drainage branch pipe is open; the second regulating valve on the second drainage branch pipe is opened according to the determination that the second drainage branch pipe is open; and the second isolation valve on the connecting pipe is opened according to the determination that the connecting pipe is open.

[0021] The mobile heating station with adjustable steam parameters provided by this invention includes a transport vehicle, a steam storage tank, a demineralized water tank, and a water supply device. The steam storage tank stores steam and is mounted on the transport vehicle; its outlet is connected to a first main drain pipe. The demineralized water tank stores demineralized water and is mounted on either the transport vehicle or the steam storage tank; its outlet is connected to a second main drain pipe. A steam regulating module is connected to both the first and second main drain pipes to mix and regulate the temperature and pressure of the steam introduced through the first main drain pipe and the demineralized water introduced through the second main drain pipe before outputting the mixture. The water supply device is mounted on the second main drain pipe and includes an electric motor to pump the demineralized water from the demineralized water tank into the steam regulating module. Overall, this invention uses a steam storage tank as a steam storage device, with its high-temperature, high-pressure steam introduced into the steam regulating module through the first main drain pipe. Simultaneously, the demineralized water from the demineralized water tank is pumped into the steam regulating module through the second main drain pipe and the water supply device. Inside the steam conditioning module, steam and demineralized water are thoroughly mixed, and the temperature and pressure of the output steam are controlled by the steam conditioning device to meet the actual needs of the enterprise. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the overall structure of an embodiment of the mobile heating station with adjustable steam parameters provided by the present invention;

[0024] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0025] Figure 3 for Figure 2 The first type of adjustment state diagram;

[0026] Figure 4 for Figure 2 The second type of adjustment state diagram;

[0027] Figure 5 for Figure 2 The third type of adjustment state diagram.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Transport vehicle; 2. Steam storage tank; 21. First main drain pipe; 22. Temperature measuring instrument; 23. Pressure measuring instrument; 24. First space; 25. Second space; 3. Demineralized water tank; 32. Second main drain pipe; 4. Steam regulating module; 40. Demineralized water flow meter; 41. First branch drain pipe; 42. Second branch drain pipe; 43. First regulating valve; 44. Second regulating valve; 45. De-temperature and pressure reducing device; 451. First de-temperature and pressure reducing device; 452. Second de-temperature and pressure reducing device; 453. Third de-temperature and pressure reducing device; 46. Connecting pipe; 47. First isolation valve; 48. Second isolation valve; 49. Steam flow meter; 5. Water supply device; 51. Electric motor; 52. Hydraulic motor; 6. Bypass pipe; 61. Bypass regulating valve assembly; 7. Pressure balancing piston; 8. Controller. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0033] Industrial enterprises obtain steam primarily through two methods. For areas located near combined heat and power (CHP) plants, enterprises typically obtain steam by constructing steam pipelines to connect to the CHP plant's heating network. While this method involves significant investment and complex construction of the heating network, it is generally suitable for large industrial centralized heating areas located no more than 15 kilometers from the power plant. The other method is for enterprises to build their own small boilers to produce steam.

[0034] However, this method has high equipment investment and operating costs, low efficiency, and causes significant environmental damage. Neither of these methods is suitable for enterprises that lack centralized steam supply in the vicinity, have low steam demand, and experience intermittent steam usage during production.

[0035] Therefore, the present invention provides a mobile heating station with adjustable steam parameters to meet the different temperature and pressure requirements of steam-using enterprises.

[0036] Please see Figure 1 This mobile heating station with adjustable steam parameters includes a transport vehicle 1, a steam storage tank 2, a demineralized water tank 3, and a water supply device 5. The steam storage tank 2 is used to store high-temperature, high-pressure steam and is an insulated tank. The transport vehicle 1 is used to transport the steam storage tank 2, the demineralized water tank 3, and the water supply device 5. The demineralized water tank 3 is used to store demineralized water (i.e., water that has undergone desalination treatment). The water supply device 5 is used to pump the demineralized water from the demineralized water tank 3 to the steam regulating module 4 for mixing and regulation with the steam.

[0037] Given that the demineralized water in the demineralized water tank 3 is in a cooled state, while the steam in the steam storage tank 2 is in a high-temperature and high-pressure state, when the demineralized water mixes with the high-temperature and high-pressure steam, both its temperature and pressure will decrease, forming a mixture with a temperature and pressure lower than the original steam in the steam storage tank 2. This cooled and depressurized steam can then be delivered to enterprises that require steam. However, to meet the specific requirements of these enterprises for steam temperature and pressure, the present invention is equipped with a steam regulating module 4, which is connected to both the steam storage tank 2 and the demineralized water tank 3.

[0038] Specifically, the outlet of the steam storage tank 2 is connected via the first main drain pipe 21, while the outlet of the demineralized water tank 3 is connected via the second main drain pipe 32. The steam regulating module 4 is connected to both main drain pipes. This module is responsible for mixing the water and steam delivered by the first main drain pipe 21 and the second main drain pipe 32, and regulating them to a predetermined temperature and pressure before outputting them.

[0039] Furthermore, considering that the steam in the steam storage tank 2 is typically at high temperature and pressure, this could lead to excessively high pressure when entering the steam regulating module 4, thus hindering the flow of demineralized water from the demineralized water tank 3 into the steam regulating module 4. Therefore, a water supply device 5 is installed to pump the demineralized water from the demineralized water tank 3 to the steam regulating module 4, ensuring a smooth process. The water supply device 5 specifically includes an electric motor 51 for easy control of its start-up and shutdown.

[0040] In summary, the mobile heating station with adjustable steam parameters provided by the present invention includes a transport vehicle 1, a steam storage tank 2, a demineralized water tank 3, and a water supply device 5; the steam storage tank 2 is used to store steam, and is mounted on the transport vehicle 1, with its outlet connected to a first main drain pipe 21; the demineralized water tank 3 is used to store demineralized water, and is mounted on either the transport vehicle 1 or the steam storage tank 2; the outlet of the demineralized water tank 3 is connected to a second main drain pipe 32; the steam regulating module 4 is connected to both the first main drain pipe 21 and the second main drain pipe 32 to mix the steam introduced by the first main drain pipe 21 and the demineralized water introduced by the second main drain pipe 32, and then output the mixture after adjusting the temperature and pressure; the water supply device 5 is mounted on the second main drain pipe 32; the water supply device 5 includes an electric motor 51 to pump the demineralized water from the demineralized water tank 3 into the steam regulating module 4. Overall, this invention uses a steam storage tank 2 as a steam storage device, where high-temperature, high-pressure steam is introduced into a steam regulating module 4 via a first main inlet pipe 21. Simultaneously, demineralized water from the demineralized water tank 3 is pumped into the steam regulating module 4 via a second main inlet pipe 32 and a water supply device 5. Within the steam regulating module 4, the steam and demineralized water are thoroughly mixed, and the temperature and pressure of the output steam are controlled by the steam regulating device to meet the actual needs of the enterprise.

[0041] In some embodiments, please refer to Figure 1 and Figure 2 To meet the different steam parameter requirements of enterprises, the steam regulating module 4 is internally equipped with multiple branch pipes, regulating valves, and desuperheating and pressure reducing devices 45. Specifically, the steam regulating module 4 includes multiple first-level branch pipes 41 and multiple second-level branch pipes 42. Each first-level branch pipe 41 is connected to a first-level main pipe 21, and each second-level branch pipe 42 is connected to a second-level main pipe 32, with the second-level branch pipes 42 connected in parallel. Each first-level branch pipe 41 and each second-level branch pipe 42 are connected in a one-to-one correspondence. Each first-level branch pipe 41 has a first regulating valve 43 at its inlet and a first isolation valve 47 at its outlet. Each second-level branch pipe 42 has a second regulating valve 44. A desuperheating and pressure reducing device 45 is installed at the junction of each first-level branch pipe 41 and each second-level branch pipe 42.

[0042] Within the steam regulating module 4, when the demineralized water from the second branch pipe 42 flows into the first branch pipe 41, the first branch pipe 41 is equipped with a first regulating valve 43, while the second branch pipe 42 is equipped with a second regulating valve 44. Therefore, the steam parameters after the demineralized water is mixed with the high-temperature, high-pressure steam can be controlled by adjusting the opening of these two valves. These steam parameters include temperature and pressure. Subsequently, the mixed steam enters the desuperheating and pressure reducing device 45, where the steam parameters are further controlled by pressure reducing elements inside the device, such as a pressure reducing valve or a throttling plate. After these control steps, the steam parameters are output stably.

[0043] Furthermore, since the multiple first drainage branch pipes 41 are connected in parallel, when the water in the second drainage branch pipe 42 mixes with the water in the first drainage branch pipe 41, they are independent of each other, and the output of each second drainage branch pipe 42 is also independent. That is, the steam parameters output by the multiple first drainage branch pipes 41 can be different from each other, and these different steam parameters can meet the different steam parameter requirements of steam-using enterprises.

[0044] In some embodiments, please continue reading Figure 1 and Figure 2 The steam regulating module 4 also includes multiple connecting pipes 46; one end of each connecting pipe 46 is connected to the outlet of one of the desuperheating and pressure reducing devices 45, and the other end is connected to the inlet of another desuperheating and pressure reducing device 45; a second isolation valve 48 is installed on each connecting pipe 46. With this configuration, when steam parameters need to be adjusted, the steam flow path can be changed by opening or closing different connecting pipes 46, thereby achieving further adjustment of the steam parameters. For example, when the steam parameters output by a certain desuperheating and pressure reducing device 45 do not meet the requirements, the connecting pipe 46 connected to that device can be closed, allowing the steam to flow to other desuperheating and pressure reducing devices 45 until the required steam parameters are obtained. This configuration not only improves the flexibility of steam parameter adjustment but also enhances the adaptability and stability of the entire heating station.

[0045] In this embodiment of the invention, based on multiple first drainage branch pipes 41 and multiple second drainage branch pipes 42, multiple connecting pipes 46 and corresponding isolation valves are provided, so that the steam regulating module 4 can be flexibly adjusted according to different steam parameter requirements.

[0046] In some embodiments, in order to further improve the adjustment accuracy and stability of steam parameters, a steam flow meter 49 is provided on the first diversion branch pipe 41. The steam flow meter 49 is located in front of the desuperheating and pressure reducing device 45 to detect the steam flow entering the desuperheating and pressure reducing device 45.

[0047] When the steam flow meter 49 detects excessive steam entering the system, it automatically adjusts the opening of the first regulating valve 43 to reduce the amount of steam entering the steam regulating module 4, thereby preventing steam parameters from exceeding the preset range. Conversely, if the steam flow meter 49 detects insufficient steam entering the system, it can adjust the valve opening accordingly to increase the steam flow rate and ensure stable steam parameter output. In this way, the steam regulating module 4 can achieve precise control of steam parameters to meet the actual needs of different enterprises.

[0048] In this embodiment of the invention, a steam flow meter 49 is installed on the first diversion branch pipe 41 to achieve real-time monitoring of steam flow. Furthermore, the steam flow meter 49 is connected to the control system of the steam regulating module 4, enabling it to feed back the real-time monitored flow data to the control system. Based on this data, the control system can automatically adjust the opening degree of the first regulating valve 43 and the operating state of the desuperheating and pressure reducing device 45, thereby achieving precise control of the steam parameters.

[0049] In some embodiments, please continue reading Figure 1 and Figure 2 In order to further improve the adjustment accuracy and stability of the demineralized water parameters, a demineralized water flow meter 40 is installed on the second drainage branch pipe 42. The demineralized water flow meter 40 is located in front of the de-cooling and pressure reducing device 45 to detect the flow rate of demineralized water entering the de-cooling and pressure reducing device 45.

[0050] When the demineralized water flow meter 40 detects excessive demineralized water entering the system, it automatically adjusts the opening of the second regulating valve 44 to reduce the amount of demineralized water entering the steam regulating module 4, thereby preventing excessive reduction in steam parameters due to excessive demineralized water. Conversely, if the demineralized water flow meter 40 detects insufficient demineralized water entering the system, it can also adjust the opening of the second regulating valve 44 accordingly to increase the flow rate of demineralized water, ensuring that the steam parameters reach the preset regulation range. In this way, the steam regulating module 4 can not only achieve precise control of steam parameters but also ensure accurate mixing ratio of demineralized water and steam, further improving the operating efficiency and stability of the entire heating station.

[0051] This embodiment of the invention achieves real-time monitoring of demineralized water flow rate by installing a demineralized water flow meter 40 on the second diversion branch pipe 42. Furthermore, the demineralized water flow meter 40 is also connected to the control system of the steam regulating module 4, enabling it to feed back the real-time monitored flow data to the control system. Based on this data, the control system can not only automatically adjust the opening of the second regulating valve 44, but also coordinately adjust the working state of the first regulating valve 43 and the desuperheating and pressure reducing device 45, thereby achieving precise dual control of steam parameters and demineralized water parameters. This setup greatly improves the adjustment accuracy and stability of steam parameters, enabling the heating station to meet the specific steam temperature and pressure requirements of different enterprises.

[0052] In some embodiments, please refer to Figure 2 To facilitate maintenance and replacement of the second regulating valve 44, backup valves are installed on both sides of the second regulating valve 44. When the second regulating valve 44 malfunctions or requires maintenance, the backup valves can be closed to isolate the second regulating valve 44 for maintenance or replacement without stopping the operation of the entire steam regulating module 4. This setup improves the reliability and maintainability of the heating station and ensures a continuous and stable steam supply.

[0053] In some embodiments, please refer to Figure 1 To improve the flexibility of steam parameter adjustment and the stability of the system, the mobile heating station also includes a bypass pipe 6 and a bypass regulating valve group 61 installed on the bypass pipe 6. Specifically, one end of the bypass pipe 6 is connected to the demineralized water tank 3, and the other end is connected to the second main drain pipe 32. The bypass pipe 6 is used to return excess demineralized water from the steam regulating module 4 to the demineralized water tank 3.

[0054] Because the bypass valve is connected to the second main drain pipe 32, the bypass valve on the bypass pipe 6 is normally kept closed. This is to prevent the demineralized water from flowing back to the demineralized water tank 3 through the bypass pipe 6 connected to the second main drain pipe 32 during the process of the water supply device 5 delivering demineralized water to the steam conditioning device.

[0055] However, when the de-icing and pressure-reducing device 45 detects excessive input demineralized water, it simultaneously adjusts the opening of the first regulating valve 43 and the second regulating valve 44, and opens the bypass valve on the bypass pipe 6 to redirect the excess demineralized water back to the demineralized water tank 3 through the bypass pipe 6. It can be understood that by returning the excess demineralized water to the tank through the bypass pipe 6, the device can quickly react and adjust the amount of demineralized water entering the de-icing and pressure-reducing device 45.

[0056] This embodiment of the invention further improves the flexibility of steam parameter regulation and the stability of the system by incorporating a bypass pipe 6 and a bypass regulating valve group 61 within the steam regulating module 4. When the system detects excessive demineralized water, the bypass valve can quickly open, diverting the excess demineralized water back to the demineralized water tank 3, thereby avoiding unnecessary impact on steam parameters. This design not only enhances the system's adaptability but also improves the accuracy of steam parameter output.

[0057] In some embodiments, please refer to Figure 2A temperature and pressure sensor is installed at the outlet of each first branch pipe 41. This sensor monitors the temperature and pressure of the steam after it has been regulated by the desuperheating and pressure-reducing device 45 in real time. By feeding this data back to the control system of the steam regulating module 4, the control system can automatically adjust the operating states of the first regulating valve 43, the second regulating valve 44, and the desuperheating and pressure-reducing device 45 according to a preset steam parameter range, thereby maintaining the output steam parameters within the set range.

[0058] In some embodiments, please refer to Figure 1 The water supply device 5 also includes a hydraulic motor 52, which is configured in parallel with the electric motor 51. Specifically, the water supply device 5 consists of a hydraulic high-pressure motor, an electric high-pressure motor, and pipes and valves installed at the inlet and outlet of the high-pressure motor. Both the hydraulic high-pressure motor and the electric high-pressure motor can provide demineralized water at the pressure required for the normal operation of the steam regulating module 4. One of them is in operation, while the other is on standby. The hydraulic high-pressure motor of the high-pressure water supply device 5 is connected to and powered by the hydraulic system of the transport vehicle 1, while the electric high-pressure motor is connected to and powered by the power system of the transport vehicle 1.

[0059] In some embodiments, please refer to Figure 1 The transport vehicle 1 is a hybrid new energy vehicle. The hydraulic motor 52 is integrated with the power system of this new energy vehicle. Specifically, the hydraulic motor 52 can directly utilize the power provided by the power system of the new energy vehicle to operate, without consuming additional energy. This design not only improves energy utilization efficiency but also reduces operating costs.

[0060] In some embodiments, please refer to Figure 1 To maintain the steam pressure inside the steam storage tank 2, the mobile heating station also includes a pressure balancing piston 7. Specifically, the pressure balancing piston 7 is installed inside the steam storage tank 2 to divide the space inside the steam storage tank 2 into a first space 24 and a second space 25. The first space 24 is used to store steam, and the second space 25 is used to store demineralized water. A demineralized water pipe is installed on the outer wall of the steam storage tank 2. One end of the demineralized water pipe is connected to the second space 25, and the other end is connected to the second main drain pipe 32. A third isolation valve 91 is installed on the demineralized water pipe 9. The pressure balancing piston 7 can move under the action of the demineralized water in the second space 25 to maintain the pressure in the first space 24.

[0061] The pressure balancing piston 7 can be installed vertically or horizontally. When installed vertically, the pressure balancing piston 7 moves to the right, thereby maintaining the steam pressure in the first space 24. Specifically, when the steam pressure in the steam storage tank 2 decreases, the isolation valve 91 opens, the water supply device 5 starts, and demineralized water from the demineralized water tank 3 is injected into the second space 25. The pressure balancing piston 7 then moves to the right, reducing the volume of the first space 24, thus maintaining pressure stability within the first space 24. In this way, the pressure balancing piston 7 can effectively balance pressure fluctuations in the steam storage tank 2, ensuring a stable steam supply.

[0062] This embodiment of the invention achieves automatic pressure regulation within the steam storage tank 2 through the installation of a pressure balancing piston 7. When the steam pressure within the steam storage tank 2 changes, the pressure balancing piston 7 moves accordingly based on the pressure of the demineralized water in the second space 25, thereby adjusting the volume of the first space 24 to maintain pressure stability. This design not only improves the stability of steam supply but also reduces the impact of pressure fluctuations on steam parameter regulation.

[0063] In some embodiments, please refer to Figure 1 The outer wall of the steam storage tank 2 is equipped with temperature measuring instruments 22 and / or pressure measuring instruments 23 to monitor the temperature and pressure of the steam within the first space 24. Specifically, the temperature measuring instruments 22 and / or pressure measuring instruments 23 can display the temperature and pressure values ​​of the steam within the steam storage tank 2 in real time, allowing operators to intuitively understand the steam status. The installation of these instruments helps operators monitor steam parameters in a timely manner and make adjustments as necessary to ensure that the steam within the steam storage tank 2 is always maintained within a suitable temperature and pressure range. Simultaneously, these instruments also provide data support for precise control of steam parameters, further improving the stability and accuracy of the steam supply.

[0064] In some embodiments, please refer to Figure 1 The steam storage tank is equipped with a steam charging port 26 and an external steam supply port 27. The steam charging port 26 is used to charge high-temperature, high-pressure steam into the steam storage tank 2, ensuring sufficient steam reserves. The external steam supply port 27 is used to output steam, regulated by the steam regulating module 4, to the steam-consuming enterprise. The design of the steam charging port 26 and the external steam supply port 27 makes steam charging and output more convenient, improving the overall operational efficiency of the heating station. In actual operation, operators can charge an appropriate amount of steam into the steam storage tank 2 through the steam charging port 26 to meet the enterprise's steam needs. Simultaneously, the regulated steam can be delivered to the enterprise through the external steam supply port 27, ensuring a stable and compliant steam supply.

[0065] In some embodiments, please refer to Figure 1The mobile heating station also includes a controller 8, which is connected to the steam regulating module 4, the water supply device 5, and the bypass regulating valve group 61. Specifically, the controller 8 receives signals from the steam regulating module 4, the water supply device 5, and the bypass regulating valve group 61, and processes the received signals according to preset steam parameter requirements to control the operating status of the steam regulating module 4, the water supply device 5, and the bypass regulating valve group 61. Through the precise control of the controller 8, automatic adjustment of steam parameters can be achieved, ensuring that the output steam parameters meet the actual needs of the steam-using enterprise.

[0066] To improve the accuracy and convenience of steam parameter control, this invention also provides a method for regulating a mobile heating station. This method includes the following steps:

[0067] Obtain the target steam output parameters;

[0068] Determine the target combination mode for opening the desuperheating and pressure reducing device 45 based on the target steam output parameters;

[0069] The first drainage branch 41, the second drainage branch 42, and the connecting pipe 46 are determined according to the target combination method;

[0070] The first regulating valve 43 installed on the first drainage branch pipe 41 is opened according to the determined opening of the first drainage branch pipe 41; the second regulating valve 44 installed on the second drainage branch pipe 42 is opened according to the determined opening of the second drainage branch pipe 42; and the second isolation valve 48 installed on the connecting pipe 46 is opened according to the determined opening of the connecting pipe 46.

[0071] Since the desuperheating and pressure reducing device 45 can automatically adjust to the target value according to the steam temperature and steam pressure at the inlet of the desuperheating and pressure reducing device 45; the desuperheating and pressure reducing device 45 can also be preset to desuperheating and pressure reducing, so that the desuperheating and pressure reducing device 45 can maintain a fixed desuperheating and pressure reducing value.

[0072] With the desuperheating and pressure reducing devices 45 pre-set, each desuperheating and pressure reducing device 45 can be set to different or the same desuperheating and pressure reducing value. If the desuperheating and pressure reducing devices 45 are set to different desuperheating and pressure reducing values, they can accommodate the output of more different steam parameter values.

[0073] Of course, when setting the desuperheating and pressure reducing values ​​of each desuperheating and pressure reducing device, the steam parameters in steam storage tank 2 and the steam parameter requirements of the steam-using enterprise can be taken into account.

[0074] Assume that the steam parameters generated by a thermal power plant in a certain region under rated operating conditions are P0, T0 (9.8MPa, 540℃). Local steam-consuming enterprises require steam with five parameters (i.e., the target steam output parameters): P1, T1 (3.0MPa, 350℃), P2, T2 (2.5MPa, 300℃), P3, T3 (2.0MPa, 250℃), P4, T4 (1.5MPa, 200℃), and P5, T5 (1.0MPa, 150℃). The desuperheating and pressure reduction values ​​of the first desuperheating and pressure reduction device 451, the second desuperheating and pressure reduction device 452, and the third desuperheating and pressure reduction device 453 are 3.0MPa, 50℃, 2.5MPa, 45℃, and 2.0MPa, 40℃, respectively.

[0075] After obtaining the above five target steam parameters, the required desuperheating and pressure reduction values ​​are calculated. Based on these values, the controller 8 selects the corresponding desuperheating and pressure reduction device 45 and its combination. According to this combination, the status of the corresponding valves on the first diversion branch pipe 41, the second diversion branch pipe 42, and the connecting pipe 46 is controlled.

[0076] For example, when steam with parameters P1 and T1 (3.0 MPa, 350 °C) is required, please refer to [reference needed]. Figure 3 The controller 8 activates the first desuperheating and pressure reducing device 451, the first and second diversion branches 42, and closes other branches and connecting pipes 46. Subsequently, the controller 8 controls the opening of the first regulating valve 43 and the second regulating valve 44, ensuring that the flow rates of steam and demineralized water entering the first desuperheating and pressure reducing device 451 meet the requirements of the output parameters P1 and T1. Inside the first desuperheating and pressure reducing device 451, after the steam and demineralized water are mixed, they undergo desuperheating and pressure reducing treatment, resulting in the output of steam parameters that meet the requirements.

[0077] For example, when steam with parameters P2 and T2 (2.5MPa, 300℃) is required, please refer to [the relevant documentation]. Figure 4 The controller 8 then activates the second desuperheating and pressure reducing device 452, the first diversion branch pipe 41, and the second diversion branch pipe 42 to ensure that steam can flow through the second desuperheating and pressure reducing device 452 for desuperheating and pressure reducing treatment. Simultaneously, the controller 8 adjusts the opening of the first regulating valve 43 and the second regulating valve 44 to ensure that the flow rates of steam and demineralized water entering the second desuperheating and pressure reducing device 452 meet the requirements of the output parameters P2 and T2. Under the action of the second desuperheating and pressure reducing device 452, the steam and demineralized water are mixed, and after desuperheating and pressure reducing treatment, steam that meets the P2 and T2 parameters is finally output.

[0078] For example, when steam with parameters P3 and T3 (2.0MPa, 250℃) is required, please refer to [the relevant documentation]. Figure 5Since the target steam parameters P4 and T4 do not perfectly match the preset desuperheating and depressurization values ​​of the desuperheating and depressurization device 45, the controller 8 needs to adopt a more complex adjustment strategy. Specifically, the controller 8 will first select the desuperheating and depressurization device 45 closest to the target parameters as the main regulating device, such as the third desuperheating and depressurization device 453 (whose desuperheating and depressurization value is 2.0 MPa and 200°C), and open the first and second drainage branches connected to it. Subsequently, in order to compensate for the pressure difference, the controller 8 will simultaneously open the connecting pipe 46 connected to another desuperheating and depressurization device 45 (such as the second desuperheating and depressurization device 452, whose desuperheating and depressurization value is 2.5 MPa and 45°C), so that some steam can flow through the connecting pipe 46 and then return to the outlet of the main regulating device (the third desuperheating and depressurization device 453) to mix with the steam output from the second desuperheating and depressurization device 452, thereby reducing the overall steam pressure. During this process, the controller 8 calculates and controls the opening degree of each valve and the working status of the two desuperheating and pressure reducing devices 45 to ensure that the parameters of the mixed steam can meet the requirements of P4 and T4.

[0079] Furthermore, for fine-tuning the temperature, the controller 8 can adjust the amount of demineralized water entering the desuperheating and pressure-reducing device 45. For example, when the actual output steam temperature is slightly higher than the target temperature, the controller 8 can appropriately reduce the opening of the first regulating valve 43, thereby reducing the amount of demineralized water entering the desuperheating and pressure-reducing device 45, thus reducing the cooling effect of the steam and bringing the output temperature closer to the target value. Conversely, when the actual output temperature is lower than the target value, the opening of the first regulating valve 43 is increased to increase the amount of demineralized water.

[0080] Through this flexible and precise adjustment method, the mobile heating station of this invention can efficiently meet the steam parameter requirements of different steam-consuming enterprises and realize customized output of steam parameters.

[0081] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A mobile heating station with adjustable steam parameters, characterized in that, include: Transport vehicle; A steam storage tank for storing steam is installed on the transport vehicle, and the outlet of the steam storage tank is connected to a first main drain pipe. A demineralized water tank is used to store demineralized water, and the demineralized water tank is installed on the steam storage tank; the outlet of the demineralized water tank is connected to a second drain manifold; A steam regulating module is connected to the first main pipe and the second main pipe respectively, so as to mix the steam introduced by the first main pipe and the demineralized water introduced by the second main pipe and regulate the temperature and pressure before outputting it. A water supply device is installed on the second main drain pipe; the water supply device includes an electric motor to pump the demineralized water in the demineralized water tank into the steam regulating module; The steam regulating module includes multiple first drainage branch pipes and multiple second drainage branch pipes. Each first drainage branch pipe is connected to a first drainage main pipe, and each second drainage branch pipe is connected to a second drainage main pipe. The second drainage branch pipes are connected in parallel with each other. Each first drainage branch pipe is connected to each second drainage branch pipe in a one-to-one correspondence. Each of the first drainage branches is equipped with a first regulating valve at its inlet and a first isolation valve at its outlet; each of the second drainage branches is equipped with a second regulating valve; and a de-heating and de-pressure device is provided at the junction of each of the first drainage branches and each of the second drainage branches. The steam regulating module also includes multiple connecting pipes; one end of each connecting pipe is connected to the outlet of one of the desuperheating and pressure reducing devices, and the other end is connected to the inlet of another desuperheating and pressure reducing device; a second isolation valve is provided on the connecting pipe. A steam flow meter is installed on the first drainage branch pipe. The steam flow meter is located in front of the desuperheating and pressure reducing device to detect the flow rate entering the desuperheating and pressure reducing device. It also includes a bypass pipe and a bypass regulating valve assembly installed on the bypass pipe. One end of the bypass pipe is connected to the demineralized water tank, and the other end is connected to the second main drain pipe. It also includes a pressure balancing piston, which is disposed inside the steam storage tank to divide the space inside the steam storage tank into a first space and a second space, the first space being used to store steam and the second space being used to store demineralized water. The outer wall of the steam storage tank is provided with a demineralized water pipe, one end of which is connected to the second space and the other end of which is connected to the second main drain pipe; a third isolation valve is provided on the demineralized water pipe. The pressure balancing piston is movable under the action of the demineralized water in the second space to maintain the pressure in the first space.

2. The mobile heating station with adjustable steam parameters according to claim 1, characterized in that, The water supply device also includes a hydraulic motor, which is connected in parallel with the electric motor.

3. The mobile heating station with adjustable steam parameters according to claim 1, characterized in that, The outer wall of the steam storage tank is equipped with temperature measuring instruments and pressure measuring instruments to monitor the temperature and pressure of the steam in the first space.

4. The mobile heating station with adjustable steam parameters according to claim 1, characterized in that, It also includes a controller, which is connected to the steam regulating module, the water supply device and the bypass regulating valve group respectively.

5. A method for adjusting a mobile heating station, based on the mobile heating station with adjustable steam parameters as described in claim 1, characterized in that, The adjustment method for the mobile heating station includes the following steps: Obtain the target steam output parameters; Determine the target combination mode for activating the desuperheating and pressure reducing device based on the target steam output parameters; The first drainage branch, the second drainage branch, and the connecting pipe to be opened are determined according to the target combination method; The first regulating valve on the first drainage branch pipe is opened according to the determination that the first drainage branch pipe is open; the second regulating valve on the second drainage branch pipe is opened according to the determination that the second drainage branch pipe is open; and the second isolation valve on the connecting pipe is opened according to the determination that the connecting pipe is open.

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