CN218118157U

CN218118157U - Steam pressure matcher

Info

Publication number: CN218118157U
Application number: CN202221929383.7U
Authority: CN
Inventors: 田仲伟; 杨剑; 李晴; 郑建涛
Original assignee: Huaneng Clean Energy Research Institute; Huaneng Group Technology Innovation Center Co Ltd
Current assignee: Huaneng Clean Energy Research Institute; Huaneng Group Technology Innovation Center Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-12-23
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to a steam pressure regulating technical field, concretely relates to steam pressure adapter, steam pressure adapter includes first pipeline, second pipeline and adjusting part, adjusting part's one end and first pipeline intercommunication, adjusting part's the other end and second pipeline intercommunication, adjusting part include first regulator and second regulator, are equipped with first mouthful on the first regulator, are equipped with the second mouth on the second regulator, and the position of the relative second regulator of first regulator is adjustable in order to change the coincidence area of first mouthful and second mouth. The utility model discloses a steam pressure matcher can improve steam pressure matcher's life and performance.

Description

Steam pressure matcher

Technical Field

The utility model relates to a steam pressure regulating technical field, concretely relates to steam pressure matcher.

Background

The steam pressure matcher generates high-speed airflow when high-pressure steam passes through a nozzle, generates negative pressure at an outlet of the nozzle, sucks the low-pressure steam under the action of the negative pressure, and mixes the high-pressure steam and the low-pressure steam to form medium-pressure steam so as to achieve the purpose of pressurizing the low-pressure steam. The high-pressure steam injection plays a decisive role in the negative pressure forming effect, in particular the nozzle performance of the steam pressure matcher. The nozzle size of the steam pressure matcher is adjusted through setting up the governing valve among the relevant art, but sets up the complexity that the governing valve can increase the steam pressure matcher, is in the operational environment of high temperature big pressure differential moreover for a long time under, and the working life of governing valve is shorter, reduces the running life and the performance of steam pressure matcher.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a steam pressure matcher, can improve steam pressure matcher's life and performance.

The embodiment of the utility model provides a steam pressure matcher, include: a first pipeline and a second pipeline; one end of the adjusting component is communicated with the first pipeline, the other end of the adjusting component is communicated with the second pipeline, the adjusting component comprises a first adjuster and a second adjuster, a first port is formed in the first adjuster, a second port is formed in the second adjuster, and the position of the first adjuster relative to the second adjuster is adjustable to change the overlapping area of the first port and the second port.

The utility model discloses steam pressure matcher can adjust the coincidence area of first mouthful and second mouth, improves the performance of pressure matcher to the life of extension pressure matcher.

In some embodiments, the first adjuster includes a first adjustment plate and a shaft coupled to the first adjustment plate to drive the first adjustment plate to rotate, the first port is provided on the first adjustment plate, and the second adjuster includes a second adjustment plate, and the second port is provided on the second adjustment plate.

In some embodiments, the steam pressure matcher further comprises a nozzle, one end of the nozzle is connected with the second adjusting disk, one end of the nozzle is communicated with the second port, and the other end of the nozzle is communicated with the second pipeline.

In some embodiments, the steam pressure matcher further comprises a controller, and the controller is connected with the rotating shaft to control the rotating shaft to rotate.

In some embodiments, the first port is plural in number, the plural first ports are arranged at intervals in the circumferential direction of the first dial, the second port is plural in number, and the plural second ports are arranged at intervals in the circumferential direction of the second dial.

In some embodiments, the number of the nozzles is multiple, and the multiple nozzles are communicated with the multiple second ports in a one-to-one correspondence manner.

In some embodiments, an end of the first tube extends into the second tube, and the adjustment member is disposed at an end of the first tube extending into the second tube.

In some embodiments, the steam pressure matcher further comprises a third pipeline, the third pipeline is communicated with the second pipeline, and the adjusting part is positioned at the connection position of the second pipeline and the third pipeline.

In some embodiments, the third pipeline includes a first pipeline section and a second pipeline section which are communicated with each other, the first pipeline section is communicated with the second pipeline, the flow cross-sectional area of the first pipeline section is constant in the length direction of the third pipeline, and the flow cross-sectional area of the second pipeline section is gradually increased in the length direction of the third pipeline along the direction far away from the first pipeline.

In some embodiments, the first port has a larger cross-sectional flow area than the second port.

Drawings

Fig. 1 is a schematic diagram of a steam pressure matcher according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the steam pressure matcher according to an embodiment of the present invention, and the steam pressure matcher has a pressure identifier.

Fig. 3 is a schematic diagram of a first regulator in accordance with an embodiment of the present invention.

Fig. 4 is a side view of a first regulator in accordance with an embodiment of the present invention.

Fig. 5 is a schematic diagram of a second regulator in accordance with an embodiment of the present invention.

Fig. 6 is a schematic view of a second regulator in connection with a nozzle according to an embodiment of the present invention.

Fig. 7 is a schematic view of the first port partially overlapping the second port in an embodiment of the invention.

Fig. 8 is a schematic view of the first port not overlapping the second port according to an embodiment of the present invention.

Fig. 9 is a schematic view of the first port and the second port completely coinciding with each other according to the embodiment of the present invention.

Reference numerals:

the flow rate of the first pipe 1, the second pipe 2,

the third pipeline 3, the first pipe section 31, the second pipe section 32,

an adjusting member 4, a first adjuster 41, a first adjusting plate 411, a rotating shaft 412, a first port 413, a second adjuster 42, a second adjusting plate 421, a second port 422,

a nozzle 5 and a controller 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 9, the steam pressure matcher of the embodiment of the present invention includes a first pipeline 1, a second pipeline 2 and an adjusting component 4.

In some embodiments, one end of the adjusting component 4 is communicated with the first pipeline 1, the other end of the adjusting component 4 is communicated with the second pipeline 2, the adjusting component 4 comprises a first adjuster 41 and a second adjuster 42, the first adjuster 41 is provided with a first port 413, the second adjuster 42 is provided with a second port 422, and the position of the first adjuster 41 relative to the second adjuster 42 is adjustable to change the overlapping area of the first port 413 and the second port 422.

Specifically, the first pipeline 1 is a working fluid pipeline, the second pipeline 2 is an ejection fluid pipeline, and the working fluid pipeline flows out of the working fluid pipeline at a high speed and sucks ejection fluid in the ejection fluid pipeline when flowing out of the working fluid pipeline.

Optionally, the first pipeline 1 is a high-pressure steam pipeline, the second pipeline 2 is a low-pressure steam pipeline, and the pressure in the first pipeline 1 is greater than the pressure in the second pipeline 2. The first pipeline 1 is provided with a pipeline inlet, the pipeline inlet of the first pipeline 1 is communicated with the high-pressure steam source, the pipeline inlet of the first pipeline 1 can convey high-pressure steam into the first pipeline 1, the second pipeline 2 is provided with a pipeline inlet, the pipeline inlet of the second pipeline 2 is communicated with the low-pressure steam source, and the pipeline inlet of the second pipeline 2 can convey low-pressure steam into the second pipeline 2. The pipeline inlets of the first pipeline 1 and the second pipeline 2 are both round, so that the transmission pipeline can be conveniently connected, and the assembly efficiency of the steam pressure matcher is improved.

Specifically, the adjusting part 4 changes the overlapping area of the first port 413 and the second port 422 through the relative position of the first port 413 on the first adjuster 41 and the second port 422 on the second adjuster 42, so as to change the flow rate of the high-pressure steam in the high-pressure steam pipeline entering the low-pressure steam pipeline, improve the performance of the steam pressure matcher, and prolong the service life of the steam pressure matcher.

In some embodiments, the first adjuster 41 includes a first adjusting plate 411 and a rotating shaft 412, the rotating shaft 412 is connected to the first adjusting plate 411 to drive the first adjusting plate 411 to rotate, the first port 413 is provided on the first adjusting plate 411, the second adjuster 42 includes a second adjusting plate 421, and the second port 422 is provided on the second adjusting plate 421.

For example, the first adjusting plate 411 is set to be in the shape of a circular disc, and when the rotating shaft 412 drives the circular disc to rotate, the outer contour of the first adjusting plate 411 is circular, which is beneficial to the dynamic balance of the adjusting plate in the rotating process of the first adjusting plate 411, thereby avoiding the position of the first adjusting plate 411 from shifting, and improving the adjusting precision of the first adjuster 41.

For example, the second adjustment disc 421 may also be set to be in the shape of a circular disc, the first adjustment disc 411 and the second adjustment disc 421 are both set to be in the shape of a circular disc, and the first adjustment disc 411 and the second adjustment disc 421 are coaxially arranged, so that the stability of the rotation of the first adjustment disc 411 relative to the second adjustment disc 421 can be improved, the performance of the steam pressure matcher is more stable, and the service life of the steam pressure matcher is prolonged.

Specifically, when the rotating shaft 412 is connected with the first adjusting disk 411 to drive the first adjusting disk 411 to rotate, the rotation of the first adjusting disk 411 changes the relative positions of the first port 413 arranged on the first adjusting disk 411 and the second port 422 arranged on the second adjusting disk 421, the relative positions of the first port 413 and the second port 422 can correspondingly change the overlapping position and the overlapping area of the first port 413 and the second port 422, and further the flow rate of the working fluid in the first pipeline 1 entering the second pipeline 2 is changed, and the performance of the steam pressure matcher is improved.

Optionally, a driven gear is sleeved on the periphery of the disc of the first adjusting disc 411, a driving gear meshed with the driven gear is arranged below the driven gear, the driving gear is driven to rotate by a driver, and the driving gear rotates to drive the gear to rotate, so that the first adjusting disc 411 rotates relative to the second adjusting disc 421, and the overlapping position of the first port 413 on the first adjusting disc 411 and the second port 422 on the second adjusting disc 421 is displaced.

Optionally, the position of the first adjusting plate 411 relative to the second adjusting plate 421 is adjustable, and the first adjusting plate 411 may be rotated by the rotating shaft 412 or a gear, so that the overlapping position of the first adjusting plate 411 relative to the second adjusting plate 421 is changed, or the overlapping position of the first adjusting plate 411 relative to the second adjusting plate 421 may be changed by the movement of the first adjusting plate 411 in the up-down or front-back direction relative to the second adjusting plate 421, where the front-back direction is orthogonal to the up-down or left-right direction, and the movement of the first adjusting plate 411 in the up-down or front-back direction may be the movement of the first adjusting plate 411 from top to bottom, or the movement of the first adjusting plate 411 from bottom to top, or the movement of the first adjusting plate 411 from front to back, or the movement of the first adjusting plate 411 from back to front.

In some embodiments, the steam pressure matcher further includes a nozzle 5, one end of the nozzle 5 is connected to the second adjusting disk 421, one end of the nozzle 5 is communicated with the second port 422, and the other end of the nozzle 5 is communicated with the second pipeline 2.

For example, the nozzle 5 is detachably coupled to the second conditioning disk 421, thereby facilitating replacement and installation of the nozzle 5 and reducing the time for maintenance of the apparatus.

Specifically, the left side (the left-right direction as shown in fig. 1) of the nozzle 5 is connected to the second port 422 on the second adjusting disk 421, the right side of the nozzle 5 is communicated with the second pipeline 2, the working fluid in the first pipeline 1 sequentially passes through the first port 413 on the first adjusting disk 411, the second port 422 on the second adjusting disk 421 and the nozzle 5 to enter the second pipeline 2, the relative rotation of the first adjusting disk 411 and the second adjusting disk 421 changes the overlapping area of the first port 413 and the second port 422, and changes the flow rate or the flow velocity of the working fluid flowing through the first adjusting disk 411 and the second adjusting disk 421, so as to change the flow rate or the flow velocity of the working fluid entering the nozzle 5, and further change the injection pressure of the first pipeline 1.

In some embodiments, the steam pressure matcher further includes a controller 6, and the controller 6 is connected to the rotating shaft 412 to control the rotation of the rotating shaft 412.

Specifically, the controller 6 controls the rotation direction and angle of the rotating shaft 412, adjusts the position of the first adjusting disk 411 connected to the rotating shaft 412 relative to the second adjusting disk 421, changes the relative position of the first port 413 and the second port 422, and further changes the overlapping area of the first port 413 and the second port 422, thereby adjusting the injection pressure of the working fluid injected from the nozzle 5 and improving the pressure adjusting range of the steam pressure matcher.

Specifically, under the condition that the pressure of the working fluid is not changed, the first adjusting disc 411 rotates through the rotating shaft 412 of the controller 6, the relative position of the first port 413 and the second port 422 is adjusted, the injection pressure of the nozzle 5 connected with the second port 422 is adjusted, and the controller 6 controls the first adjusting disc 411 to rotate, so that the overlapping area of the first port 413 and the second port 422 is changed, the flexible operation of the pressure matcher is realized, and the pressure adjusting range of the pressure matcher is improved.

Specifically, the controller 6 may adjust the first adjustment dial 411 manually, and set the controller 6 on the left side of the first pipeline 1 (in the left-right direction shown in fig. 1), or may automatically adjust by receiving a signal, if automatic adjustment is adopted, the received signal mainly comes from the steam pressure or flow data of a certain node of the pressure matcher, and the controller 6 adjusts the rotation direction and angle of the first adjustment dial 411 by comparing the rated value with the measured data. And the controller 6 can also be connected with an alarm externally, and when the data exceeds the normal range or the opening reaches the limit, the controller 6 controls the alarm to alarm.

In some embodiments, the first port 413 is plural in number, the plural first ports 413 are arranged at intervals in the circumferential direction of the first regulation disk 411, the second port 422 is plural in number, and the plural second ports 422 are arranged at intervals in the circumferential direction of the second regulation disk 421.

For example, the number of the first ports 413 may be set to four, or may be set to one, two, three, six, or eight. The plurality of first ports 413 are arranged at intervals in the circumferential direction of the first adjusting disk 411, and the plurality of first ports 413 have the same shape and size, so that adjustment is more convenient and accurate when the overlapping areas of the first ports 413 and the second ports 422 are adjusted.

For example, the number of the second ports 422 may be four, or may be one, two, three, six, or eight. The plurality of second ports 422 are arranged at intervals in the circumferential direction of the second adjusting disk 421, the plurality of second ports 422 have the same shape and size, the number of the second ports 422 is the same as that of the first ports 413, and the positions of the second ports 422 and the first ports 413 correspond to each other one by one, so that convenience in adjusting the overlapping areas of the first ports 413 and the second ports 422 is improved, and the performance of the steam pressure matcher is improved.

In some embodiments, the number of the nozzles 5 is plural, and the plural nozzles 5 are in one-to-one correspondence with the plural second ports 422.

For example, the number of the nozzles 5 may be four, or may be one, two, three, or six. The plurality of nozzles 5 are correspondingly connected with the second ports 422 one by one, and the pressure applied to each nozzle 5 is relatively balanced through the corresponding connection of each second port 422 and each nozzle 5, so that the nozzles 5 can uniformly spray the working fluid in the first pipeline 1, the spraying efficiency of the nozzles 5 is improved, and the performance of the steam pressure matcher is improved.

In some embodiments, one end of the first pipeline 1 extends into the second pipeline 2, and the adjusting part 4 is arranged at the end of the first pipeline 1 extending into the second pipeline 2.

Specifically, stretch into second pipeline 2 with the right-hand member of first pipeline 1 in, it is more convenient in spatial arrangement, more smooth and easy when working fluid in the first pipeline 1 gets into second pipeline 2.

In some embodiments, the steam pressure matcher further includes a third pipeline 3, the third pipeline 3 is communicated with the second pipeline 2, and the adjusting part 4 is located at the connection position of the second pipeline 2 and the third pipeline 3.

Specifically, establish adjusting part 4 at 1 right-hand member of first pipeline, and adjusting part 4 is located the junction of first pipeline 1, second pipeline 2 and third pipeline 3, improves the efficiency that working fluid got into third pipeline 3 in first pipeline 1, improves the efficiency that draws injection fluid in the second pipeline 2 and get into third pipeline 3 when first pipeline 1 sprays simultaneously.

Specifically, as shown in fig. 2, the pressure of the working fluid in the first pipeline 1 is set to be P0, the pressure of the injection fluid in the second pipeline 2 is set to be P1, the working fluid in the first pipeline 1 sequentially passes through the first port 413 on the first adjusting disk 411, the second port 422 on the second adjusting disk 421 and the nozzle 5 connected with the second port 422 to be injected, because the flow rate of the working fluid injected at the nozzle 5 is fast, a negative pressure is formed at the connection part of the second pipeline 2 and the third pipeline 3, the pressure of the negative pressure is set to be P2, and P2 is smaller than P1, the injection fluid in the second pipeline 2 is injected from the second pipeline 2 under the action of pressure difference and flows into the third pipeline 3, the injected working fluid and the injection fluid injected injection fluid enter the third pipeline 3 to be mixed and diffused, the pressure of the mixed fluid in the third pipeline 3 is set to be P3, P3 is greater than P1, the pressurization effect of the injection fluid is achieved, and the matching box performance of the steam pressure overlapping performance of the first port 413 and the second port 422 is adjusted.

In some embodiments, the third pipeline 3 includes a first pipe segment 31 and a second pipe segment 32 which are communicated with each other, the first pipe segment 31 is communicated with the second pipeline 2, the flow cross-sectional area of the first pipe segment 31 is constant in the length direction of the third pipeline 3, and the flow cross-sectional area of the second pipeline 2 is gradually increased in the length direction of the third pipeline 3.

Specifically, the flow cross section of the first pipe section 31 is kept unchanged in the left-right direction (left-right direction shown in fig. 1), the flow cross section of the second pipe section 32 is gradually increased from left to right in the left-right direction of the third pipeline 3, the first pipe section 31 and the second pipe section 32 form a cone shape of the third pipeline 3, the cone shape can reduce resistance drop, low-pressure gas in the second pipeline 2 can flow out more smoothly, mixing of fluid in the first pipeline 1 and the second pipeline 2 in the third pipeline 3 is improved, and the working efficiency and performance of the pressure matcher are improved.

In some embodiments, the first port 413 has a cross-sectional flow area that is greater than a cross-sectional flow area of the second port 422.

Specifically, by changing the relative position of the first port 413 with respect to the second port 422 through the rotation of the first dial 411, and setting the flow cross-sectional area of the first port 413 larger than the flow cross-sectional area of the second port 422, the flow cross-sectional area of the second port 422 can be changed from zero to the flow cross-sectional area of the second port 422, and the rotation efficiency of the first dial 411 can be improved.

Optionally, the outer contours of the first port 413 and the second port 422 are circular holes, so that the overlapping area of the first port 413 and the second port 422 is facilitated, the communication with the nozzle 5 is also facilitated, and the spraying efficiency of the working fluid is improved.

Specifically, the maximum overlapping area of the first port 413 and the second port 422 is the flow cross-sectional area of the second port 422, and the minimum overlapping area is zero, when the overlapping area of the first port 413 and the second port 422 is small, the pressure of the working fluid ejected by the nozzle 5 is increased, when the overlapping area of the first port 413 and the second port 422 is large, the pressure of the working fluid ejected by the nozzle 5 is correspondingly reduced, and the pressure of the working fluid ejected by the nozzle 5 is adjusted by adjusting the overlapping area of the first port 413 and the second port 422, so that the pressure range of the mixed fluid output by the third pipeline 3 is adjusted under the condition that the pressure of the working fluid is constant, and the application range of the pressure matcher is increased.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A steam pressure matcher, comprising:

a first pipeline and a second pipeline;

one end of the adjusting component is communicated with the first pipeline, the other end of the adjusting component is communicated with the second pipeline, the adjusting component comprises a first adjuster and a second adjuster, a first port is formed in the first adjuster, a second port is formed in the second adjuster, and the position of the first adjuster relative to the second adjuster is adjustable to change the overlapping area of the first port and the second port.

2. The steam pressure matcher as set forth in claim 1, wherein the first adjuster includes a first adjusting disk and a rotating shaft connected to the first adjusting disk to drive the first adjusting disk to rotate, the first port is provided on the first adjusting disk, and the second adjuster includes a second adjusting disk, and the second port is provided on the second adjusting disk.

3. The steam pressure matcher as claimed in claim 2, further comprising a nozzle, wherein one end of the nozzle is connected to the second adjusting disk, and one end of the nozzle is communicated with the second port, and the other end of the nozzle is communicated with the second pipeline.

4. The steam pressure matcher as claimed in claim 2, further comprising a controller connected to the rotating shaft to control the rotating shaft to rotate.

5. The steam pressure matcher according to claim 3, wherein the first ports are plural in number, the plural first ports are arranged at intervals in a circumferential direction of the first regulating disk, the second ports are plural in number, and the plural second ports are arranged at intervals in a circumferential direction of the second regulating disk.

6. The steam pressure matcher as claimed in claim 5, wherein the number of the nozzles is plural, and the plural nozzles are in one-to-one correspondence communication with the plural second ports.

7. The steam pressure matcher as claimed in any one of claims 1 to 6, wherein an end of the first pipe extends into the second pipe, and the adjusting member is provided at an end of the first pipe extending into the second pipe.

8. The steam pressure matcher as claimed in any one of claims 1 to 6, further comprising a third pipeline, wherein the third pipeline is communicated with the second pipeline, and the adjusting part is located at a connection position of the second pipeline and the third pipeline.

9. The steam pressure matcher as claimed in claim 8, wherein the third pipeline comprises a first pipeline section and a second pipeline section which are communicated with each other, the first pipeline section is communicated with the second pipeline, the flow cross-sectional area of the first pipeline section is constant in the length direction of the third pipeline, and the flow cross-sectional area of the second pipeline section is gradually increased in the length direction of the third pipeline along the direction away from the first pipeline.

10. The steam pressure matcher of claim 1, wherein a cross-sectional flow area of the first port is greater than a cross-sectional flow area of the second port.