Closed process system of high-temperature steam compressor

Abstract

The invention provides a closed process system of a high-temperature steam compressor, which comprises a steam source suitable for providing source steam; the steam compressor is provided with a steam compressor inlet end and a steam compressor outlet end, and the steam compressor is suitable for receiving source steam from the steam source through the steam compressor inlet end and discharging first steam through the steam compressor outlet end; the temperature reduction area and the absorption area are sequentially located on one side of the outlet end of the steam compressor, the temperature reduction area is suitable for reducing the temperature of the first steam to generate second steam, the absorption area is suitable for adjusting the pressure of the second steam flowing through the absorption area to generate third steam, and the steam compressor is further suitable for receiving the third steam through the inlet end of the steam compressor. According to the closed process system of the high-temperature steam compressor, the stability and reliability of the working medium flow, pressure, temperature and total amount of the high-temperature steam compressor system can be effectively improved.

Description

Technical Field

[0001] The present application mainly relates to the field of high-temperature and high-pressure steam engines, and in particular to a closed process system of a high-temperature steam compressor engine. Background Art

[0002] With the continuous advancement of heating technology, compressor heating, as an advanced heating method, has obvious advantages, such as stable output, no restrictions on heat source conditions, and broad application prospects. However, compressor heating also faces some problems, including the high temperature shock problem of closed reflux of high-temperature compressors, and the safety and reliability design during the start-up, operation, and stop of the compressor needs to be improved. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide a closed process system for a high-temperature steam compressor, which can effectively improve the stability and reliability of the working fluid flow, pressure, temperature and total amount of the high-temperature steam compressor system.

[0004] To solve the above technical problems, the present application provides a high-temperature steam compressor closed process system, comprising: a steam source, suitable for providing source steam; a steam compressor, having a steam compressor inlet end and a steam compressor outlet end, the steam compressor being suitable for receiving the source steam from the steam source through the steam compressor inlet end and discharging the first steam through the steam compressor outlet end; and a cooling zone and a consumption zone, which are successively located on one side of the steam compressor outlet end, wherein the cooling zone is suitable for cooling the first steam to generate second steam, the consumption zone is suitable for adjusting the pressure of the second steam flowing through the consumption zone to generate third steam, and the steam compressor is also suitable for receiving the third steam through the steam compressor inlet end.

[0005] Optionally, it also includes a loading regulating valve, which is arranged in the path of the source steam flowing to the inlet end of the steam compressor, and the loading regulating valve is configured to adjust the steam flow rate of the source steam.

[0006] Optionally, it further comprises one or more flow measurement points, one or more pressure measurement points and / or one or more temperature measurement points, which are respectively arranged at the steam compressor inlet end and the steam compressor outlet end.

[0007] Optionally, it further includes a filtering device, which is arranged at the inlet end of the steam compressor, and the filtering device is configured to filter impurities in the source steam.

[0008] Optionally, the desuperheating zone comprises a water spraying device, which sprays water onto the first steam to desuperheat the first steam and increase the working quality of the first steam at the same time.

[0009] Optionally, the water spray device includes a first water spray desuperheater and a second water spray desuperheater, wherein the temperature adjustment fineness of the first water spray desuperheater is higher than the temperature adjustment fineness of the second water spray desuperheater.

[0010] Optionally, a thermometer is further included, which is arranged in the section through which the second steam flows in the temperature reduction zone.

[0011] Optionally, it further includes a return valve group, which is arranged between the steam compressor and the desuperheating zone, and the return valve group is configured to reduce the pressure of the first steam.

[0012] Optionally, an anti-surge device is further included, which is arranged in a path between the steam compressor and the desuperheating zone and in parallel with the return valve group.

[0013] Optionally, the consumption zone includes an overflow regulating valve, and the overflow regulating valve is suitable for adjusting the pressure of the second steam by adjusting the valve opening.

[0014] Optionally, an emergency relief valve is further included, which is arranged on one side of the steam compressor outlet end, and the emergency relief valve is suitable for releasing steam when the temperature of the first steam is greater than 530°C and / or the pressure of the first steam is greater than 11.5MPa.

[0015] Compared with the prior art, the present application has the following advantages: The high-temperature steam compressor closed process system proposed in the present application is intended to solve the problems existing in the compressor heating and achieve stable heating output. The system is carefully designed to make full use of the energy of high-temperature steam, and pressurizes and heats up the steam compressor, thereby releasing more energy for heating. At the same time, the system is designed with an effective closed reflux system to solve the problem of high-temperature shock and improve the safety and stability of the system. In addition, the present application also comprehensively considers the start-up, operation, and stop of the compressor in each preferred embodiment, and by adding functional module components and reasonably arranging and designing the position, it can provide corresponding safety and reliability measures to ensure the smooth progress of the entire heating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application. They are included and constitute a part of the present application. The accompanying drawings illustrate embodiments of the present application and together with the present specification serve to explain the principles of the present application. In the accompanying drawings:

[0017] Figure 1 is a module schematic diagram of a high-temperature steam compressor closed process system according to an embodiment of the present application; and

[0018] Figure 2 It is a system architecture diagram of a high-temperature steam compressor closed process system according to another embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0020] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0022] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0024] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0025] It should be understood that when a component is referred to as being "on another component," "connected to another component," "coupled to another component," or "contacting another component," it may be directly on, connected to, coupled to, or contacting the other component, or there may be intervening components. In contrast, when a component is referred to as being "directly on another component," "directly connected to," "directly coupled to," or "directly contacting" another component, there are no intervening components. Similarly, when a first component is referred to as being "electrically in contact with" or "electrically coupled to" a second component, there is an electrical path between the first component and the second component that allows current to flow. The electrical path may include capacitors, coupled inductors, and / or other components that allow current to flow, even without direct contact between conductive components.

[0026] This application refers to Figure 1A high-temperature steam compressor closed process system 10 (hereinafter referred to as "system 10") is proposed. The system 10 includes a steam source 11, a steam compressor 12, a temperature reduction zone 13 and a consumption zone 14. The steam source 11 is suitable for providing source steam. The steam compressor 12 has a steam compressor inlet end 121 and a steam compressor outlet end 122. The steam compressor 12 is suitable for receiving source steam from the steam source 11 through the steam compressor inlet end 121 and discharging first steam through the steam compressor outlet end 122.

[0027] according to Figure 1 The desuperheating zone 13 and the consumption zone 14 are located on one side of the steam compressor outlet 122, wherein the desuperheating zone 13 is suitable for desuperheating the first steam to generate the second steam; further, the consumption zone 14 is suitable for adjusting the pressure of the second steam flowing through the consumption zone 14 to generate the third steam. Figure 1 The steam compressor 12 is also suitable for receiving the third steam through the steam compressor inlet port 121, thereby forming a closed cycle of the system 10.

[0028] like Figure 1 The system 10 shown can effectively process the high-temperature and high-pressure source steam from the steam source 11 through the steam compressor 12, and further adjust the temperature and pressure parameters of the processed source steam through the cooling zone 13 and the consumption zone 14, thereby ensuring the stability of parameters such as the working fluid flow and pressure of the entire system 10, so that the system 10 can operate continuously with high efficiency and reliability.

[0029] exist Figure 1 The system 10 shown is based on Figure 2 A high-temperature steam compressor closed process system 20 (hereinafter referred to as "system 20") according to another embodiment of the present application is shown. System 20 is based on Figure 1 An improved preferred embodiment of the system 10 shown in FIG. 1 provides more details on the arrangement of the functional components within the system. Figure 2 Provide detailed explanation.

[0030] according to Figure 2 , the system 20 includes a steam source 21, a steam compressor 22, a temperature reduction zone 23 and a consumption zone 24. Further preferably, the system 20 also includes a loading regulating valve 211, which is arranged in the path of the source steam flowing to the steam compressor inlet end 2201, and the loading regulating valve 211 is configured to adjust the steam flow of the source steam. In this embodiment, an electric gate valve 212 is also configured in the path parallel to the loading regulating valve 211, and the electric gate valve is used to cooperate with the loading regulating valve 211 to jointly finely control the flow of the source steam.

[0031] In this embodiment, an inlet loading regulating valve 211 is provided at the inlet end 2201 of the steam compressor, which meets various technical requirements of the system 20. The design of the inlet loading regulating valve 211 is intended to achieve multiple functions, including warm-up, inflation, and balancing the pressure difference of the inlet gate valve, etc. First, the loading regulating valve 211 plays an important role in the warm-up stage. When the system 20 is initially started, it protects the steam compressor 22 and the corresponding equipment from sudden changes in temperature and pressure. The inlet loading regulating valve 211 effectively reduces the oscillation and fluctuation of the system 20 by accurately controlling the steam flow rate, ensuring that the system 20 can operate smoothly and continuously during the warm-up process, further reducing the waste of energy. With the change of the cylinder temperature of the steam compressor 22, the reduction of condensed liquid and the increase of steam, the inlet loading regulating valve 211 continues to play a key role in flow control. Through the dynamic adjustment of the inlet loading regulating valve 211, the flow rate of the working medium flowing into the system 20 can be accurately controlled, thereby meeting the dynamic adjustment requirements for the steam flow rate in the warm-up stage and reducing the waste of energy. In addition, the dynamic adjustment of the inlet loading regulating valve 211 can also reduce the fluctuation and instability of the system 20 during the warm-up phase, thereby improving the stability and reliability of the system.

[0032] Furthermore, the inlet loading regulating valve 211 is also configured to assume the function of inflation. When the system 20 is started, in order to ensure that the steam compressor 22 can operate normally, an appropriate amount of gas needs to be filled into the channel on one side of the inlet channel (i.e., the steam compressor inlet end 2201) to balance the pressure and temperature inside the system 20. The inlet loading regulating valve 211 achieves precise regulation of the inflation process by precisely controlling the input amount of gas, thereby ensuring the safe startup and operation of the system 20. Finally, the inlet loading regulating valve 211 can also balance the pressure difference of the inlet gate valve of the system 20, facilitating the flexible opening of the gate valve. The application of the inlet loading valve in the warm-up stage of the present invention can not only realize the dynamic regulation of the steam flow rate and reduce energy waste, but also improve the energy efficiency performance of the system and reduce the fluctuation and instability of the system 20, which has important technical and application value.

[0033] In this embodiment, preferably, one or more flow measurement points, one or more pressure measurement points and / or one or more temperature measurement points are also included, which are respectively arranged at the steam compressor inlet end 2201 and the steam compressor outlet end 2202. These measurement points can directly display the flow, temperature and pressure parameters directly related to the working state of the steam compressor 22. Specifically, Figure 2The figure shows the steam compressor inlet flow measurement point 213, the steam compressor inlet pressure measurement point 214, and the steam compressor inlet temperature measurement point 215 located on the side of the steam compressor inlet end 2201, as well as the steam compressor outlet flow measurement point 216 and the steam compressor outlet temperature measurement point 217 located on the side of the steam compressor outlet end 2202. Through the above arrangement, the flow, temperature and pressure parameters directly related to the working state of the steam compressor 22 can be effectively measured in real time at the steam compressor inlet end 2201 and the steam compressor outlet end 2202, thereby ensuring the normal and stable operation of the system 20. It is understood that this application does not take Figure 2 The examples shown are limited to these. In actual applications, technicians can flexibly arrange the positions of the above-mentioned parameter measurement points according to the parameters actually required to be obtained.

[0034] More preferably, Figure 2 Also shown is a filtering device 218 , which is arranged at the steam compressor inlet end 2201 . The filtering device 218 is configured to filter impurities in the source steam, thereby improving the purity of the steam flowing into the steam compressor 22 .

[0035] In this embodiment, as a preferred implementation, the desuperheating zone 23 is specifically implemented as a water spray device, which sprays water to the first steam flowing into the desuperheating zone 23 to desuperheat the first steam and increase the working mass of the first steam at the same time. In this way, the system 20 can more effectively achieve the balance of the cycle.

[0036] Specifically, during the operation of the system 20, due to the possibility of leakage at the shaft seal of the steam compressor 22, part of the working fluid is lost and the system quality is reduced, but the heat in the system 20 is still increasing. In order to solve this problem and achieve the balance of the system cycle, the present embodiment preferably adopts the water spray cooling technology. By utilizing the characteristic that water absorbs a lot of heat when evaporating, the temperature of the first steam is reduced to a safe range, thereby preventing the occurrence of overheating. On this basis, by spraying water to cool down, the working fluid can be replenished and the temperature can be controlled in time, reducing the impact of steam leakage on the quality of the working fluid in the system 20 and ensuring the stable operation of the system 20. In addition, the water spray cooling technology also has the characteristics of recycling. By transferring the heat of the steam to the water, the heat is reused, thereby improving the energy efficiency performance of the system 20. Through the water spray cooling technology, the system 20 can achieve heat balance and recycling, ensuring the stability and reliability of the system. And relying on the water spray cooling technology, part of the lost working fluid can also be replenished, so that the quality of the working fluid in the system 20 remains stable.

[0037] Further preferably, it can be seen that the water spray device in this embodiment includes a first water spray desuperheater 219 and a second water spray desuperheater 220, wherein the temperature adjustment precision of the first water spray desuperheater 219 is higher than the temperature adjustment precision of the second water spray desuperheater 220. In this embodiment, in order to timely obtain the temperature of the second steam after the desuperheating operation, the system 20 is further arranged with a thermometer 221, which is arranged in the section of the desuperheating zone 23 through which the second steam flows.

[0038] Specifically, the present embodiment preferably sets a double set of water spray coolers in the circulation channel through which the first steam flows, so as to solve the problem of excessive temperature of the reflux gas. The double set of water spray coolers can improve the safety, stability and reliability of the system 20, and meet the technical requirements of the system 20. By adopting the design of the double set of water spray coolers, the system 20 is smoother when switching, and will not cause interruption or instability of the system 20, thereby ensuring the continuous operation of the system 20. At the same time, the double set of water spray coolers can also achieve more accurate temperature regulation, by first performing rough temperature regulation by the second water spray cooler 220, and then performing fine temperature regulation by the first water spray cooler 219, so as to achieve the purpose of fast and accurate regulation, ensuring that the system 20 can operate stably at different temperatures and meet the heating demand.

[0039] Compared with the heat exchanger used in the related art, the double-group water spray desuperheater preferably used in this embodiment can not only achieve temperature change, but also has the function of replenishing gas. This means that the double-group water spray desuperheater can not only adjust the temperature of the first steam, but also replenish the working fluid in the process of adjusting the temperature, thereby achieving the advantage of simultaneous change of working fluid and energy, and providing important support for the stable operation and efficient energy conversion of the system 20.

[0040] On the other hand, preferably, the system 20 of this embodiment is also provided with a return valve group 222 in the section through which the first steam flows, which is arranged between the steam compressor 22 and the cooling zone 23, and the return valve group 222 is configured to reduce the pressure of the first steam. On this basis, the system 20 also includes an anti-surge device 223, which is arranged between the steam compressor 22 and the cooling zone 23 and in a path parallel to the return valve group 222. In the present invention, a double-group water spray desuperheater is placed after the return valve group 222, realizing the function of first reducing pressure and preventing surge and then spraying water for cooling. This technology enables the system 20 to effectively control the temperature of the reflux working fluid while effectively reflowing and preventing surge.

[0041] Reference Figure 2, this embodiment preferably implements the return valve group 222 as a large and small return valve group 222, that is, the two return valves involved in the parallel connection in the large and small return valve group 222 have different or at least partially overlapping flow adjustment range intervals. Compared with the single return valve used in the related art, this design can more effectively realize the regulation of the flow and pressure of the working fluid, and is convenient for more accurate finding of the operating boundary of the steam compressor 22. In this embodiment, the design of the large and small return valve group 222 can not only accurately adjust the flow and pressure of the working fluid according to actual needs, but also achieve rapid response during the operation of the system 20, ensuring the stability and reliability of the system 20. The large and small return valve group 222 can flexibly control the steam flow and pressure in the system 20, so that the system 20 can achieve more accurate regulation under different working conditions. Compared with the traditional single return valve, the setting of the large and small return valve group 222 makes the system have a wider adjustment range, more sensitive adjustment response, and can better adapt to changes in demand under different working conditions. In addition, the large and small reflux valve groups 222 also have a certain backup design. The two reflux valves can provide backup functions to each other in the event of a failure or abnormal situation, thereby ensuring the stable operation of the system 20.

[0042] The setting of the large and small reflux valve group 222 not only improves the regulation accuracy of the system 20, but also helps to optimize the performance of the system 20 and improve the energy efficiency of the system 20. By accurately controlling the steam flow, the large and small reflux valve group 222 can effectively adjust the heat output of the system 20, maximize the use of energy, reduce energy consumption, and achieve the energy saving and environmental protection goals of the system 20.

[0043] In addition, this embodiment also proposes a preferred design scheme for realizing dual reflux channels in the system 20. Specifically, two independent reflux channels are set in the system 20, namely the channel where the reflux valve group 222 is located and the anti-surge valve channel with the anti-surge device 223 connected in parallel thereto. After that, the two reflux channels share a water spray cooling device. This design aims to optimize the structure of the system 20 and improve the safety and controllability of the system. Through these two independent reflux channels, the system 20 can better cope with the needs under different working conditions and ensure the stable operation and efficient energy conversion of the system 20.

[0044] Further preferably, in this embodiment, the consumption zone 24 is specifically implemented as an overflow regulating valve 224, which is suitable for adjusting the pressure of the second steam by adjusting the valve opening to produce the third steam after pressure regulation. Combined with the above description of the cooling zone 23, this embodiment arranges an overflow regulating valve 224 after the water spray cooling device to be responsible for regulating the excess working fluid in the system 20 so that it is evenly distributed to the system 20, thereby maintaining the circulation balance of the working fluid in the system 20. Specifically, the water spray cooling device compensates for part of the working fluid lost in the preceding flow channel due to the characteristics of the steam compressor 22 itself, and uses the overflow regulating valve 224 to balance in order to prevent excessive compensation. This coordinated design not only effectively solves the problem of working fluid loss in the system 20, but also ensures that the total amount of working fluid in the system 20 is generally stable in a relatively balanced range, ensuring the stability and continuous operation of the system 20.

[0045] On the other hand, preferably, in the present embodiment, the system 20 is further provided with an emergency relief valve 225, which is arranged on one side of the steam compressor outlet end 2202. The emergency relief valve 225 is suitable for releasing steam when the temperature of the first steam is greater than 530°C and / or the pressure of the first steam is greater than 11.5 MPa, thereby further improving the safety of the system 20.

[0046] In the above embodiment, the steam inlet pipeline of the steam compressor 22 is provided with an electric gate valve 212, an inlet flow measurement point 213, a pressure measurement point 214, a temperature measurement point 215, etc., and a filter device 218 is configured to ensure the cleanliness of the inlet steam of the steam compressor 22, so that the steam enters the steam compressor 22 to increase pressure and temperature. The outlet pipeline of the steam compressor 22 is connected to the return pipeline, and the return pipeline is divided into two stages. In the first stage, the high-temperature and high-pressure steam produced by the equipment is firstly reduced in pressure through the return valve group 222, and the steam is throttled to the inlet pressure of the steam compressor 22. At this time, the steam still maintains a high degree of superheat, and then the return steam is adjusted to the inlet temperature of the steam compressor 22 through the water spray cooling device. After ensuring the temperature and pressure of the reflux steam, the second stage task is to absorb the excess flow after the water spraying. The system 20 sets up an absorption area 24 after the water spraying cooling device, and configures an overflow regulating valve 224 on the branch line. Through the action of the valve, the excess flow is distributed to the absorption area 24 to ensure the inlet design flow of the steam compressor 22. The overflow regulating valve 12 will match the pressure of the steam inlet pipeline of the steam compressor 22, while absorbing the discharge, stabilizing the steam inlet pressure of the steam compressor 22. Figure 1 On the basis of the system 10 shown, the closed reflux over-temperature problem of the high-temperature steam compressor can be better solved, and it has extremely high engineering promotion and application value.

[0047] The basic concepts have been described above. Obviously, for those skilled in the art, the above application disclosure is only an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0048] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0049] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0050] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0051] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A high-temperature steam compressor closed process system, characterized in that: include: A steam source, adapted to provide source steam; a steam compressor having a steam compressor inlet end and a steam compressor outlet end, wherein the steam compressor is adapted to receive the source steam from the steam source through the steam compressor inlet end and discharge the first steam through the steam compressor outlet end; as well as The temperature reduction zone and the absorption zone are located successively on one side of the steam compressor outlet end, wherein the temperature reduction zone is suitable for reducing the temperature of the first steam to produce second steam, and the absorption zone is suitable for adjusting the pressure of the second steam flowing through the absorption zone to produce third steam, and the steam compressor is also suitable for receiving the third steam through the steam compressor inlet end.

2. The system according to claim 1, characterized in that It also includes a loading regulating valve, which is arranged in the path of the source steam flowing to the inlet end of the steam compressor, and the loading regulating valve is configured to adjust the steam flow rate of the source steam.

3. The system according to claim 1, characterized in that It also includes one or more flow measurement points, one or more pressure measurement points and / or one or more temperature measurement points, which are respectively arranged at the steam compressor inlet end and the steam compressor outlet end.

4. The system according to claim 1, characterized in that It also includes a filtering device, which is arranged at the inlet end of the steam compressor, and the filtering device is configured to filter impurities in the source steam.

5. The system according to claim 1, wherein: The desuperheating zone comprises a water spraying device, which sprays water onto the first steam to desuperheat the first steam and increase the working quality of the first steam at the same time.

6. The system according to claim 5, characterized in that The water spray device includes a first water spray desuperheater and a second water spray desuperheater, wherein the temperature adjustment fineness of the first water spray desuperheater is higher than the temperature adjustment fineness of the second water spray desuperheater.

7. The system according to claim 5 or 6, characterized in that The invention also includes a thermometer disposed in a section of the desuperheating zone through which the second steam flows.

8. The system of claim 1, wherein: It also includes a return valve group, which is arranged between the steam compressor and the temperature reduction zone, and the return valve group is configured to reduce the pressure of the first steam.

9. The system according to claim 8, characterized in that It also includes an anti-surge device, which is arranged in a path between the steam compressor and the desuperheating zone and in parallel with the return valve group.

10. The system according to claim 1, wherein: The consumption zone comprises an overflow regulating valve, and the overflow regulating valve is suitable for adjusting the pressure of the second steam by adjusting the valve opening.

11. The system according to claim 1, characterized in that It also includes an emergency relief valve, which is arranged on one side of the steam compressor outlet end, and the emergency relief valve is suitable for steam relief when the temperature of the first steam is greater than 530°C and / or the pressure of the first steam is greater than 11.5MPa.

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