A multi-condition pipeline pressurizing centrifugal steam compressor system device

Abstract

The present invention relates to the technical field of compressors, and particularly to a multi-condition pipeline pressurization centrifugal steam compressor system device, including a device body. The device body is externally reserved with low-pressure steam pipeline, medium-pressure steam pipeline and high-pressure steam pipeline interfaces, and internally composed of three groups of steam buffer tanks with different pressure grades, two sets of pipeline pressurization centrifugal compressors, three one-way valves, six regulating valves, several manual gate valves and pipe fittings. Through a reliable control system, the medium-pressure compressor and the medium / high-pressure compressor can be controlled to operate independently or in series / parallel. This device can heat up and boost the input low-pressure steam to produce the medium-pressure steam or high-pressure steam required for production, and can flexibly select the working conditions according to the required pressure and flow rate of production. This device has the advantages of compact structure, high integration, multiple working condition switching, safety and reliability, lower project cost, less floor area and energy saving.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and particularly to a multi-condition pipeline pressurizing centrifugal steam compressor system device. Background Art

[0002] In major petrochemical, thermal power, chemical plants, steel plants and other industries, after the plant steam is used in the production process, a large amount of low-pressure steam or high-temperature condensate that cannot be directly utilized will be generated. The pipeline pressurizing centrifugal steam compressor system conducts a closed recovery of the high-temperature condensate. After flash evaporation, a large amount of low-pressure saturated steam is generated. The compressor heats up and boosts the low-pressure saturated steam into medium-high pressure steam with a use purpose, and incorporates it into the corresponding pipe network for production. The waste steam is recycled, saving energy and protecting the environment.

[0003] For plant production, several steam pressure pipelines with different pressure grades are often required, and the flow rate requirements corresponding to the pressure also change in real time. It is common in plants to have one steam pressure grade matching one or more sets of pipeline pressurizing compressors.

[0004] However, the traditional pipeline pressurizing compressor system has a single operating condition, and the structural integration of the compressor and supporting pipelines, buffer tanks and other supporting equipment is low, the floor area is large, and the project cost is high. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-condition pipeline pressurizing centrifugal steam compressor system device, aiming to solve the problems of the traditional pipeline pressurizing compressor system having a single operating condition, low structural integration of the compressor and supporting pipelines, buffer tanks and other supporting equipment, large floor area, and high project cost.

[0006] To achieve the above purpose, the present invention provides a multi-condition pipeline pressurizing centrifugal steam compressor system device, including a device body;

[0007] The device body includes an inlet steam buffer tank. The bottom of the inlet steam buffer tank has a liquid discharge channel, and the top is equipped with a venting channel for installing a safety valve. Its capacity meets the process requirements when the medium-pressure compressor and the medium / high compressor operate in parallel at the same time. The large-diameter inlet end on the side of the inlet steam buffer tank is connected to an inlet gate valve through a pipeline for introducing low-pressure steam that needs to be heated and boosted; the outlet end is connected to a tee pipeline. One end of the tee pipeline is connected to the medium-pressure pipeline of the medium-pressure compressor, and the other end is connected to the medium-pressure pipeline of the medium / high-pressure compressor;

[0008] The medium-pressure pipeline of the medium-pressure compressor includes a medium-pressure compressor inlet regulating valve, a medium-pressure compressor, a medium-pressure buffer tank, a medium-pressure buffer tank outlet gate valve, a medium-pressure steam regulating valve, a medium-pressure steam outlet check valve, and a medium-pressure steam outlet gate valve that are sequentially connected through a pipeline after one end of the tee pipeline;

[0009] The medium / high-pressure pipeline of the medium / high-pressure compressor includes a medium / high-pressure compressor low-pressure inlet gate valve, a medium / high-pressure compressor inlet three-way pipeline, a medium / high-pressure compressor inlet regulating valve, a medium / high-pressure compressor, a medium / high-pressure buffer tank, a medium / high-pressure buffer tank outlet gate valve, a medium / high-pressure buffer tank outlet medium-pressure check valve, a medium-pressure steam outlet check valve, and a medium-pressure steam outlet gate valve, which are connected in sequence through pipelines after the other end of the three-way pipeline.

[0010] The medium / high-pressure buffer tank is connected to the medium-pressure buffer tank through a pipeline, and a set of gate valves and regulating valves are installed on the pipeline; the medium / high-pressure buffer tank is connected to the low-pressure buffer tank through a pipeline, and a set of gate valves and regulating valves are installed on the pipeline; a high-pressure steam outlet check valve and a high-pressure steam outlet gate valve are installed between the medium / high-pressure buffer tank and the high-pressure steam pipe network and are connected through a pipeline; a medium / high-pressure buffer tank outlet gate valve, a medium / high-pressure buffer tank outlet medium-pressure check valve, a medium-pressure steam outlet check valve, and a medium-pressure steam outlet gate valve are installed between the medium / high-pressure buffer tank and the medium-pressure steam pipe network and are connected through a pipeline.

[0011] The medium-pressure buffer tank is connected to the steam inlet buffer tank through a pipeline, and a set of gate valves and regulating valves are installed on the pipeline; a medium-pressure series gate valve is installed between the medium-pressure buffer tank outlet pipeline and the medium / high-pressure compressor inlet three-way pipeline and is connected through a pipeline.

[0012] Among them, the steam inlet buffer tank, the medium / high-pressure buffer tank, and the medium-pressure buffer tank are respectively equipped with a pressure measuring device and a temperature measuring device.

[0013] Among them, buffer tank level gauges are respectively arranged on the steam inlet buffer tank, the medium / high-pressure buffer tank, and the medium-pressure buffer tank.

[0014] Among them, temperature measuring devices and pressure measuring devices are arranged at the outlet end and the inlet end of the device body.

[0015] Among them, a desuperheating device is arranged at the compressor outlet of the device body, and a desuperheating and pressure-reducing device is arranged on the bypass pipeline.

[0016] Among them, all remote measurement points and regulating valves of the device body are interlocked and controlled by a reliable PLC control system, and the control system is configured with a field operator station and is equipped with an uninterruptible power supply.

[0017] A multi-condition pipeline pressurizing centrifugal steam compressor system device of the present invention, the device body has four conditions. Before the device runs, the pipeline and the unit need to be preheated before they can be put into operation. The preheating operation process is not described here. The following will detail the four operating conditions of the device:

[0018] Condition 1, the medium-pressure compressor runs alone.

[0019] After the system preheating is completed, when the medium-pressure compressor has just started and has not reached the rated operating frequency, the low-pressure steam enters the medium-pressure compressor through the inlet gate valve, steam inlet buffer tank, three-way pipe at the outlet of the steam inlet buffer tank, and low-pressure inlet control valve to increase the temperature and pressure. The medium-pressure steam generated enters the medium-pressure buffer tank through the compressor outlet pipe. When the pressure of the medium-pressure steam is not sufficient to open the medium-pressure steam check valve, the medium-pressure steam returns to the steam inlet buffer tank through the medium-pressure bypass pipe between the outlet pipe of the medium-pressure buffer tank and the steam inlet buffer tank. The medium-pressure bypass pipe is equipped with a medium-pressure bypass gate valve and a medium-pressure anti-surge valve;

[0020] When the medium-pressure compressor reaches the working frequency range, the generated medium-pressure steam passes through the outlet gate valve of the medium-pressure buffer tank and the medium-pressure steam control valve, opens the medium-pressure steam outlet check valve, and provides the medium-pressure steam meeting the production requirements to the medium-pressure steam pipe network through the medium-pressure steam outlet gate valve; during operation, the above-mentioned gate valves are fully open, and the medium-pressure anti-surge valve flexibly adjusts the reflux flow according to the working conditions to ensure the stable operation of the equipment. The low-pressure inlet control valve adjusts the system flow, and the medium-pressure steam control valve is fully open; except for the said gate valves and control valves, the rest of the valves need to be fully closed;

[0021] When it is necessary to shut down the medium-pressure compressor due to process requirements, stop the medium-pressure compressor after fully opening the medium-pressure anti-surge valve, and close all gate valves and control valves. The device shutdown is completed.

[0022] Operating condition 2: The medium / high-pressure compressor operates alone.

[0023] After the system preheating is completed, when the medium / high-pressure compressor has just started and has not reached the rated operating frequency, the low-pressure steam enters the medium / high-pressure compressor through the inlet gate valve, steam inlet buffer tank, three-way pipe at the outlet of the steam inlet buffer tank, low-pressure inlet gate valve of the medium / high-pressure compressor, three-way pipe at the inlet of the medium / high-pressure compressor, and medium / high-pressure compressor inlet control valve to increase the temperature and pressure. The generated medium-pressure steam enters the medium / high-pressure buffer tank through the compressor outlet pipe. When the pressure of the medium-pressure steam is not sufficient to open the medium-pressure check valve at the outlet of the medium / high-pressure buffer tank and the medium-pressure steam check valve, the medium-pressure steam returns to the steam inlet buffer tank through the medium / high-pressure bypass pipe between the outlet pipe of the medium / high-pressure buffer tank and the steam inlet buffer tank. The medium / high-pressure bypass pipe is equipped with a medium / high-pressure bypass gate valve and a medium / high-pressure anti-surge valve;

[0024] When the medium / high-pressure compressor reaches the working frequency range, the generated medium-pressure steam passes through the outlet gate valve of the medium / high-pressure buffer tank, opens the medium-pressure check valve at the outlet of the medium / high-pressure buffer tank and the medium-pressure steam outlet check valve, and provides the medium-pressure steam meeting the production requirements to the medium-pressure steam pipe network through the medium-pressure steam outlet gate valve; during operation, the above-mentioned gate valves are fully open, and the medium / high-pressure anti-surge valve flexibly adjusts the reflux flow according to the working conditions to ensure the stable operation of the equipment. The medium / high-pressure compressor inlet control valve adjusts the system flow; except for the said gate valves and control valves, the rest of the valves need to be fully closed;

[0025] When the medium-pressure compressor needs to be shut down due to process requirements, fully open the medium / high-pressure anti-surge valve and then stop the medium / high-pressure compressor. Close all gate valves and regulating valves, and the unit shutdown is completed.

[0026] Operating condition three, that is, the medium-pressure compressor and the medium / high-pressure compressor operate in parallel, and the steam flow direction refers to operating condition one and operating condition two.

[0027] It should be noted that only the medium-pressure compressor in operating condition one can be preferentially operated before the medium / high-pressure compressor in operating condition two can be operated. If operating condition two is operated first, the medium-pressure steam will enter the medium-pressure compressor through the medium-pressure steam regulating valve and the medium-pressure buffer tank, causing reverse rotation and damage to the medium-pressure compressor.

[0028] Operating condition four, the medium-pressure compressor and the medium / high-pressure compressor operate in series.

[0029] Before starting the machine, ensure that the low-pressure inlet gate valve of the medium / high-pressure compressor and the outlet gate valve of the medium / high-pressure buffer tank are closed, and all other gate valves are opened. The regulating valve is adjusted in real time according to requirements for system preheating; after the preheating is completed, adjust the low-pressure inlet regulating valve and the medium / high-pressure compressor inlet regulating valve to the initial opening degree for starting the machine. Fully close the medium-pressure anti-surge valve and the medium-pressure steam regulating valve, fully open the medium / high-pressure anti-surge valve and the high-pressure anti-surge valve, and start the medium-pressure compressor and the medium / high-pressure compressor at the same time;

[0030] When the compressor reaches the operating frequency range, the low-pressure steam enters the medium-pressure compressor through the inlet gate valve, the steam inlet buffer tank, the outlet tee pipe of the steam inlet buffer tank, and the low-pressure inlet regulating valve to increase the temperature and pressure. The generated medium-pressure steam enters the medium-pressure buffer tank through the compressor outlet pipe, and then enters the medium / high-pressure compressor through the outlet pipe of the medium-pressure buffer tank, the medium-pressure series gate valve, the inlet tee pipe of the medium / high-pressure compressor, and the medium / high-pressure compressor inlet regulating valve to increase the temperature and pressure again. The generated high-pressure steam enters the medium / high-pressure buffer tank through the compressor outlet pipe. The high-pressure steam pushes open the high-pressure steam outlet check valve, and the high-pressure steam outlet gate valve provides high-pressure steam meeting the production requirements to the high-pressure steam pipe network;

[0031] During operation, the interlocking adjustment of the low-pressure inlet regulating valve, the medium / high-pressure compressor inlet regulating valve, the medium / high-pressure anti-surge valve, and the high-pressure anti-surge valve makes the whole unit operate smoothly; after smooth operation, the opening degree of the low-pressure inlet regulating valve can be continuously increased to increase the steam inlet volume, and the medium-pressure steam regulating valve can be adjusted so that part of the steam generated by the medium-pressure compressor with a flow rate greater than that required by the medium / high-pressure compressor passes through the medium-pressure steam regulating valve, pushes open the medium-pressure steam outlet check valve, and the medium-pressure steam outlet gate valve provides medium-pressure steam meeting the production requirements to the medium-pressure steam pipe network;

[0032] When the device needs to be shut down planned, first fully open the high-pressure anti-surge valve, and then stop the medium / high-pressure compressor. During this period, dynamically adjust the opening degrees of the low-pressure inlet regulating valve and the medium-pressure steam regulating valve to reduce the load of the medium / high-pressure compressor. After the medium / high-pressure compressor stops, if the device needs to continue operating under Condition 1, close all gate valves and regulating valves except those under Condition 1. If the device needs to be completely shut down, after stopping the medium-pressure compressor according to Condition 1, close all gate valves and valves of the device.

[0033] The present invention has the advantages that the device has high integration, small floor area, short construction period, low cost, can flexibly select operating conditions according to the pressure and flow requirements of production, produce steam as needed, is more energy-saving, supports series or parallel combinations between devices, and expands more pressure and flow combinations required for production, and solves the problems of the traditional pipeline booster compressor system such as single operating condition, low structural integration of compressors and supporting equipment such as pipelines and buffer tanks, large floor area, and high project cost. Brief Description of the Drawings

[0034] 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 use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 It is a system schematic diagram of a multi-condition pipeline booster centrifugal steam compressor system device provided by the present invention;

[0036] Reference numerals: 1 - Inlet regulating valve of medium / high pressure compressor, 2 - Inlet regulating valve of medium pressure compressor, 3 - Inlet three-way pipe of medium / high pressure compressor, 4 - Low pressure inlet gate valve of medium / high pressure compressor, 5 - Outlet three-way pipe of steam inlet buffer tank, 6 - Medium pressure anti-surge valve, 7 - Medium pressure bypass gate valve, 8 - Steam inlet buffer tank, 9 - Medium pressure bypass pipe, 10 - Inlet gate valve, 11 - Medium pressure series gate valve, 12 - Medium pressure series pipe, 13 - Medium pressure steam regulating valve, 14 - Outlet gate valve of medium pressure buffer tank, 15 - Outlet gate valve of medium pressure steam, 16 - Outlet check valve of medium pressure steam, 17 - Medium pressure pipe at the outlet of medium / high pressure buffer tank, 18 - Outlet check valve of medium pressure at the outlet of medium / high pressure buffer tank, 19 - Outlet gate valve of medium / high pressure buffer tank, 20 - Outlet gate valve of high pressure steam, 21 - Outlet check valve of high pressure steam, 22 - Medium / high pressure bypass, 23 - Medium / high pressure anti-surge valve, 24 - Medium / high pressure bypass gate valve, 25 - High pressure bypass, 26 - High pressure anti-surge valve, 27 - High pressure bypass gate valve, 28 - Medium / high pressure buffer tank, 29 - Outlet pipe of medium / high pressure compressor, 30 - Outlet pipe of medium pressure compressor, 31 - Medium / high pressure compressor, 32 - Medium pressure buffer tank, 33 - Medium pressure compressor, 34 - Inlet pipe of medium / high pressure compressor, 35 - Inlet pipe of medium pressure compressor. Detailed implementation manners

[0037] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0038] Please refer to Figure 1 , the present invention provides a multi-condition pipeline pressurized centrifugal steam compressor system device,

[0039] In this embodiment, the control system power supply is equipped with an uninterruptible power supply and is controlled by the German Siemens S7-1500 series PLC. All signals are equipped with isolation modules, and the operator operates on the WINCC upper computer;

[0040] This device can operate under the following four conditions respectively:

[0041] Among them, in Condition 1, the medium pressure compressor 33 operates alone.

[0042] After the system preheating is completed, when the medium-pressure compressor 33 has just started and has not reached the rated operating frequency, the low-pressure steam enters the medium-pressure compressor 33 through the inlet gate valve 10, the steam inlet buffer tank 8, the three-way pipe at the outlet of the steam inlet buffer tank 5, and the low-pressure inlet control valve 2 to increase the temperature and pressure. The medium-pressure steam generated enters the medium-pressure buffer tank 32 through the compressor outlet pipe 30. When the pressure of the medium-pressure steam is not sufficient to open the medium-pressure steam check valve 16, the medium-pressure steam returns to the steam inlet buffer tank 8 through the medium-pressure bypass pipe 9 between the outlet pipe of the medium-pressure buffer tank 32 and the steam inlet buffer tank 8. The medium-pressure bypass pipe 9 is equipped with a medium-pressure bypass gate valve 7 and a medium-pressure anti-surge valve 6;

[0043] When the medium-pressure compressor 33 reaches the working frequency range, the generated medium-pressure steam passes through the medium-pressure buffer tank outlet gate valve 14 and the medium-pressure steam control valve 13, opens the medium-pressure steam outlet check valve 16, and provides medium-pressure steam meeting the production requirements to the medium-pressure steam pipe network through the medium-pressure steam outlet gate valve 15; during operation, the above-mentioned gate valves are fully open, the medium-pressure anti-surge valve 6 flexibly adjusts the reflux flow according to the working conditions to ensure the stable operation of the equipment, the low-pressure inlet control valve 2 adjusts the system flow, and the medium-pressure steam control valve 13 is fully open; except for the said gate valves and control valves, the rest of the valves need to be fully closed;

[0044] When it is necessary to shut down the medium-pressure compressor 33 due to process requirements, after fully opening the medium-pressure anti-surge valve 6, stop the medium-pressure compressor 33, close all the gate valves and control valves, and the device shutdown is completed.

[0045] Secondly, in operating condition two, the medium / high-pressure compressor 31 operates alone.

[0046] After the system preheating is completed, when the medium / high-pressure compressor 31 has just started and has not reached the rated operating frequency, the low-pressure steam enters the medium / high-pressure compressor 31 through the inlet gate valve 10, the steam inlet buffer tank 8, the three-way pipe at the outlet of the steam inlet buffer tank 5, the low-pressure inlet gate valve 4 of the medium / high-pressure compressor, the three-way pipe at the inlet of the medium / high-pressure compressor 3, and the inlet control valve 1 of the medium / high-pressure compressor to increase the temperature and pressure. The generated medium-pressure steam enters the medium / high-pressure buffer tank 28 through the compressor outlet pipe 29. When the pressure of the medium-pressure steam is not sufficient to open the medium-pressure check valve 18 at the outlet of the medium / high-pressure buffer tank and the medium-pressure steam check valve 16, the medium-pressure steam returns to the steam inlet buffer tank 8 through the medium / high-pressure bypass pipe 22 between the outlet pipe of the medium / high-pressure buffer tank 28 and the steam inlet buffer tank 8. The medium / high-pressure bypass pipe 22 is equipped with a medium / high-pressure bypass gate valve 24 and a medium / high-pressure anti-surge valve 23;

[0047] When the medium / high-pressure compressor 31 reaches the operating frequency range, the medium-pressure steam generated passes through the medium / high-pressure buffer tank outlet gate valve 19, pushes open the medium-pressure check valve 18 at the medium / high-pressure buffer tank outlet and the medium-pressure steam outlet check valve 16, and the medium-pressure steam outlet gate valve 15 supplies medium-pressure steam meeting the production requirements to the medium-pressure steam pipeline network; during operation, the above-mentioned gate valves are fully open, and the medium / high-pressure anti-surge valve flexibly adjusts the reflux flow according to the 23 working conditions to ensure the stable operation of the equipment, and the medium / high-pressure compressor inlet regulating valve 1 adjusts the system flow; except for the said gate valves and regulating valves, the rest of the valves need to be fully closed;

[0048] When it is necessary to shut down the medium / high-pressure compressor 31 due to process requirements, after fully opening the medium / high-pressure anti-surge valve 23, stop the medium / high-pressure compressor 31, close all gate valves and regulating valves, and the device shutdown is completed.

[0049] In addition, in working condition three, that is, the medium-pressure compressor 33 and the medium / high-pressure compressor 31 operate in parallel, and the steam flow direction refers to working condition one and working condition two.

[0050] It should be noted that only the medium-pressure compressor 33 in working condition one can be preferentially operated before the medium / high-pressure compressor 31 in working condition two can be operated. If working condition two is operated first, the medium-pressure steam will enter the medium-pressure compressor 33 through the medium-pressure steam regulating valve 13 and the medium-pressure buffer tank 32, causing reverse rotation and damage to the medium-pressure compressor 33.

[0051] Finally, in working condition four, the medium-pressure compressor 33 and the medium / high-pressure compressor 31 operate in series.

[0052] Before starting the machine, ensure that the medium / high-pressure compressor low-pressure inlet gate valve 4 and the medium / high-pressure buffer tank outlet gate valve 19 are closed, and the rest of the gate valves are all opened. The regulating valve adjusts in real time according to the requirements for system preheating; after the preheating is completed, adjust the low-pressure inlet regulating valve 2 and the medium / high-pressure compressor inlet regulating valve 1 to the initial opening degree for starting the machine, fully close the medium-pressure anti-surge valve 6 and the medium-pressure steam regulating valve 13, fully open the medium / high-pressure anti-surge valve 23 and the high-pressure anti-surge valve 26, and start the medium-pressure compressor 33 and the medium / high-pressure compressor 31 at the same time;

[0053] When the compressor reaches the operating frequency range, the low-pressure steam enters the medium-pressure compressor 33 through the inlet gate valve 10, the steam inlet buffer tank 8, the steam inlet buffer tank outlet three-way pipe 5, and the low-pressure inlet regulating valve 2 to increase the temperature and pressure. The generated medium-pressure steam enters the medium-pressure buffer tank 32 through the compressor outlet pipe 30, and then from the outlet pipe of the medium-pressure buffer tank 32 through the medium-pressure series gate valve 11, the medium / high-pressure compressor inlet three-way pipe 3, and the medium / high-pressure compressor inlet regulating valve 1 enters the medium / high-pressure compressor 31 to increase the temperature and pressure again. The generated high-pressure steam enters the medium / high-pressure buffer tank 28 through the compressor outlet pipe 29. The high-pressure steam pushes open the high-pressure steam outlet check valve 21, and the high-pressure steam outlet gate valve 20 supplies high-pressure steam meeting the production requirements to the high-pressure steam pipeline network;

[0054] During operation, the interlocking adjustment of the low-pressure inlet regulating valve 2, the medium / high-pressure compressor inlet regulating valve 1, the medium / high-pressure anti-surge valve 23, and the high-pressure anti-surge valve 26 enables the entire device to operate smoothly. After smooth operation, the opening of the low-pressure inlet regulating valve 2 can be continuously increased to increase the steam inlet volume, and the medium-pressure steam regulating valve 13 can be adjusted so that a part of the steam generated by the medium-pressure compressor 33 with a flow rate greater than that required by the medium / high-pressure compressor 31 passes through the medium-pressure steam regulating valve 13, pushing open the medium-pressure steam outlet check valve 16, and providing medium-pressure steam that meets the production requirements to the medium-pressure steam pipeline network through the medium-pressure steam outlet gate valve 15.

[0055] When the device needs to be shut down as planned, first fully open the high-pressure anti-surge valve 26, and then stop the medium / high-pressure compressor 31. During this period, dynamically adjust the opening of the low-pressure inlet regulating valve 2 and the medium-pressure steam regulating valve 13 to reduce the load of the medium / high-pressure compressor 31. After the medium / high-pressure compressor 31 has stopped, if the device needs to continue operating under Condition 1, close all gate valves and regulating valves except those for Condition 1. If the device needs to be completely shut down, after stopping the medium-pressure compressor 33 according to Condition 1, close all gate valves and valves of the device.

[0056] The above-disclosed is only a preferred embodiment of a multi-condition pipeline pressurized centrifugal steam compressor system device of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A multi-condition pipeline pressurizing centrifugal steam compressor system device, characterized in that, It includes a device body; The device body includes a steam inlet buffer tank. The bottom of the steam inlet buffer tank has a liquid discharge channel, and the top is equipped with a venting channel for installing a safety valve. Its capacity meets the process requirements when the medium-pressure compressor and the medium / high-pressure compressor operate in parallel at the same time. The large-diameter inlet end on the side of the steam inlet buffer tank is connected to an inlet gate valve through a pipeline for introducing low-pressure steam that needs to be heated and pressurized; the outlet end is connected to a three-way pipeline. One end of the three-way pipeline is connected to the medium-pressure pipeline of the medium-pressure compressor, and the other end is connected to the medium-pressure pipeline of the medium / high-pressure compressor; The medium-pressure pipeline of the medium-pressure compressor includes a medium-pressure compressor inlet regulating valve, a medium-pressure compressor, a medium-pressure buffer tank, a medium-pressure buffer tank outlet gate valve, a medium-pressure steam regulating valve, a medium-pressure steam outlet check valve, and a medium-pressure steam outlet gate valve that are sequentially connected through pipelines after one end of the three-way pipeline; The medium-pressure pipeline of the medium / high-pressure compressor includes a medium / high-pressure compressor low-pressure inlet gate valve, a medium / high-pressure compressor inlet three-way pipeline, a medium / high-pressure compressor inlet regulating valve, a medium / high-pressure compressor, a medium / high-pressure buffer tank, a medium / high-pressure buffer tank outlet gate valve, a medium / high-pressure buffer tank outlet medium-pressure check valve, a medium-pressure steam outlet check valve, and a medium-pressure steam outlet gate valve that are sequentially connected through pipelines after the other end of the three-way pipeline; The medium / high-pressure buffer tank and the medium-pressure buffer tank are connected by a pipeline, and a set of gate valves and regulating valves are installed on the pipeline; the medium / high-pressure buffer tank and the low-pressure buffer tank are connected by a pipeline, and a set of gate valves and regulating valves are installed on the pipeline; a high-pressure steam outlet check valve and a high-pressure steam outlet gate valve are installed between the medium / high-pressure buffer tank and the high-pressure steam pipe network and are connected through a pipeline; a medium / high-pressure buffer tank outlet gate valve, a medium / high-pressure buffer tank outlet medium-pressure check valve, a medium-pressure steam outlet check valve, and a medium-pressure steam outlet gate valve are installed between the medium / high-pressure buffer tank and the medium-pressure steam pipe network and are connected through a pipeline; The medium-pressure buffer tank and the steam inlet buffer tank are connected by a pipeline, and a set of gate valves and regulating valves are installed on the pipeline; a medium-pressure series gate valve is installed between the medium-pressure buffer tank outlet pipeline and the medium / high-pressure compressor inlet three-way pipeline and is connected through a pipeline.

2. A multi-condition pipeline pressurizing centrifugal steam compressor system device according to claim 1, characterized in that, The steam inlet buffer tank, the medium / high-pressure buffer tank, and the medium-pressure buffer tank respectively have a pressure measuring device and a temperature measuring device.

3. A multi-condition pipeline pressurizing centrifugal steam compressor system device according to claim 1, characterized in that, Buffer tank level gauges are respectively arranged on the steam inlet buffer tank, the medium / high-pressure buffer tank, and the medium-pressure buffer tank.

4. A multi-condition pipeline pressurization centrifugal steam compressor system device according to claim 1, characterized in that, Temperature measuring devices and pressure measuring devices are arranged at the outlet end and the inlet end of the device body.

5. A multi-condition pipeline pressurization centrifugal steam compressor system device according to claim 1, characterized in that, A desuperheating device is arranged at the compressor outlet of the device body, and a desuperheating and pressure-reducing device is arranged on the bypass pipeline.

6. A multi-condition pipeline pressurization centrifugal steam compressor system device according to claim 1, characterized in that, All remote measurement points and regulating valves of the device body are interlocked and controlled by a reliable PLC control system. The control system is equipped with a field operator station and is equipped with an uninterruptible power supply.

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