A steam pressure adaptor

Abstract

The utility model discloses a steam pressure adapter, including the adapter casing with steam chamber, be located in the multiple injector of casing, the injector is along the axis direction of matching casing and arranges periphery, is provided with the mixing cavity in the injector, the injector still is provided with the mixing channel respectively with the communication of mixing cavity and steam chamber, still be provided with the adjusting assembly for the plugging of mixing channel in the steam chamber, and adjusting assembly is by a plurality of regulating valve, and the regulating valve includes the plate that is used for driving regulating valve and goes up and down the lifting link of rotation connection with the plate of lifting, and the top of regulating valve has the pushed part, and the top wall in the steam chamber is fixed with the guide convex part, and the guide convex part is located the pushed part directly above. After one injector keeps long time work, can make the plate rotate, make another injector carry out long time work to make different injector all carry out certain loss, and avoid the serious loss of certain injector, and improve the service life of steam pressure adapter indirectly.

Description

Technical Field

[0001] This application relates to the field of steam boosting, and in particular to a steam pressure matching device. Background Technology

[0002] A steam pressure matching device generates a high-speed airflow when high-pressure steam passes through a nozzle, creating a negative pressure at the nozzle outlet. Under this negative pressure, low-pressure steam is drawn in, and after mixing with the high-pressure steam, medium-pressure steam is formed, thus pressurizing the low-pressure steam.

[0003] For example, patent number "CN1313712C," titled "Adjustable Multi-Nozzle Steam Pressure Matcher," discloses four nozzles and corresponding regulating valves, using regulating valves of varying lengths to sequentially open or close the nozzles. This improves the thermal energy utilization rate of the steam power system. However, this method only allows the regulating valves to be opened or closed sequentially. During operation, the first nozzle remains open, reducing its lifespan. The last nozzle is not used frequently, resulting in different wear levels for each nozzle and consequently reducing the overall lifespan of the steam pressure matcher. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a steam pressure matching device that increases the service life and performance of the steam pressure matching device.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A steam pressure matching device includes a matching device housing with a steam chamber and a plurality of ejectors disposed within the housing. The ejectors are arranged circumferentially along the axial direction of the matching housing. Each ejector has a mixing chamber and a mixing channel communicating with the mixing chamber and the steam chamber respectively. The device is characterized in that: the steam chamber is further provided with an adjustment assembly for blocking the mixing channel. The adjustment assembly consists of a lifting plate, a lifting rod rotatably connected to the lifting plate, and a plurality of regulating valves. The lifting plate is used to drive the regulating valves to move up and down. The top of each regulating valve has a push-receiving part. A guide protrusion is fixed to the top wall of the steam chamber, and the guide protrusion is located directly above the push-receiving part.

[0007] Preferably, the bottom of the regulating valve has a circular plug with a size larger than that of the mixing channel, and the mixing channel has a guide recess on the side facing the steam chamber.

[0008] Preferably, the projections of the guide recess and the guide protrusion on the horizontal projection plane are arranged in a circumferential pattern with intervals.

[0009] Preferably, the regulating valve includes a valve stem slidably connected to the lifting plate and an anti-detachment part fixed to the upper end of the valve stem. The valve stem length varies for different regulating valves, and the circular plug is fixed to the bottom of the valve stem.

[0010] Preferably, the valve stem is further fixed with a retaining ring, and a return spring is provided between the retaining ring and the lifting plate.

[0011] Preferably, the steam chamber is connected to a driving steam inlet, and the mixing chamber is connected to a suction steam inlet.

[0012] Preferably, each mixing chamber corresponds to a steam inlet.

[0013] Preferably, the lifting rod is connected to an electric actuator or a pneumatic actuator.

[0014] In summary, this utility model has the following beneficial technical effects:

[0015] After one of the injectors has been working for a long time, the lifting plate can be rotated to allow the other injector to work for an extended period. This allows different injectors to experience some wear and tear, preventing one injector from suffering severe wear and tear, and indirectly extending the service life of the steam pressure matching device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a partial structural schematic diagram of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Matching device housing; 11. Steam chamber; 12. Drive steam inlet; 13. Suction steam inlet; 2. Ejector; 21. Mixing chamber; 22. Mixing channel; 3. Adjusting assembly; 31. Adjusting valve; 311. Valve stem; 312. Anti-detachment part; 313. Circular plug; 32. Lifting plate; 33. Lifting rod; 34. Pushing part; 35. Guide protrusion; 36. Guide recess; 37. Return spring. Detailed Implementation

[0020] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," "third," and similar expressions are used for descriptive and distinguishing purposes only and should not be construed as indicating or implying the relative importance of the corresponding components.

[0021] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail.

[0022] This application discloses a steam pressure matching device.

[0023] Reference Figure 1 A steam pressure matching device includes a matching device housing 1 with a steam chamber 11. The matching device housing 1 is cylindrical. Multiple ejectors 2 are arranged circumferentially around its axis inside the matching device housing 1. Each ejector 2 has a mixing chamber 21 and a mixing channel 22 that communicates with the mixing chamber 21 and the steam chamber 11 respectively. The steam chamber 11 is connected to a driving steam inlet 12, and the mixing chamber 21 is connected to a suction steam inlet 13. The lower part of the matching device housing 1 has an outlet. There are multiple ejectors 2, and each mixing chamber 21 corresponds to a suction steam inlet 13.

[0024] Drive steam enters steam chamber 11 through drive steam inlet 12, and intake steam enters its respective mixing chamber 21 through intake steam inlet 13 for mixing, and then exits from the outlet of the matching shell.

[0025] The steam chamber 11 is also equipped with an adjustment component 3 for blocking the mixing channel 22.

[0026] The regulating assembly 3 consists of a lifting plate 32, a lifting rod 33, and multiple regulating valves 31. The top of the lifting rod 33 extends out of the matching device housing 1 and is connected to an electric actuator or a pneumatic actuator. The electric actuator or pneumatic actuator of this application is prior art and is commercially available.

[0027] The regulating valve 31 includes a valve stem 311 and an anti-detachment part 312. The valve stem 311 is slidably connected to the lifting plate 32, and the anti-detachment part 312 is fixed to the upper end of the valve stem 311. The length of the valve stem 311 varies for different regulating valves 31. One valve stem 311 has a push-receiving part 34 fixed to its top, and a guide protrusion 35 is fixed to the top wall inside the steam chamber 11. The guide protrusion 35 is located directly above the push-receiving part 34. A circular plug 313 is fixed to the bottom of the valve stem 311. The bottom of the regulating valve 31 has a circular plug 313 with a size larger than that of the mixing channel 22. The mixing channel 22 has a guide recess 36 on the side facing the steam chamber 11.

[0028] The projections of the guide recess 36 and the guide protrusion 35 on the horizontal projection plane are arranged in a circumferential pattern with intervals.

[0029] The valve stem 311 is also fixed with a retaining ring, and a return spring 37 is provided between the retaining ring and the lifting plate 32.

[0030] The implementation principle of this embodiment is as follows: valve stems 311 of different lengths can sequentially open multiple injectors 2 to achieve different operational needs as the lifting rod 33 moves up and down. When it is necessary to switch between different injectors 2, the lifting rod 33 can continue to move upward, the pushed part 34 contacts the guide protrusion 35, and under the guidance of the inclined surface of the guide protrusion 35, the lifting plate 32 rotates. The guide protrusion 35 allows the lifting plate 32 to rotate within a range of 80°-100°. Taking this embodiment as an example, there are 4 guide protrusions 35, each of which allows the lifting plate 32 to rotate 90°. To reduce rotation error, a guide recess 36 is designed. When the lifting plate 32 rotates 80°, after the valve stem 311 moves downward, the circular plug 313 will abut against the guide recess 36. The circular plug 313 will slide along the side wall of the guide recess 36 until it blocks the mixing channel 22.

[0031] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods without changing the essential spirit of this utility model. Therefore, the above specific embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as a limitation or restriction on the technical solution of this utility model. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steam pressure matching device, comprising a matching device housing (1) having a steam chamber (11), and a plurality of ejectors (2) disposed within the housing, the ejectors (2) being arranged circumferentially along the axial direction of the matching housing, the ejectors (2) having a mixing chamber (21) therein, and the ejectors (2) also having a mixing channel (22) communicating with the mixing chamber (21) and the steam chamber (11) respectively, characterized in that: The steam chamber (11) is also equipped with an adjustment assembly (3) for blocking the mixing channel (22). The adjustment assembly (3) consists of a lifting plate (32), a lifting rod (33) rotatably connected to the lifting plate (32), and multiple adjustment valves (31). The lifting plate (32) is used to drive the adjustment valves (31) to move up and down. The top of the adjustment valves (31) has a push-receiving part (34). The top wall of the steam chamber (11) is fixed with a guide protrusion (35), which is located directly above the push-receiving part (34).

2. A steam pressure matching device as described in claim 1, characterized in that: The bottom of the regulating valve (31) has a circular plug (313) larger than the mixing channel (22), and the mixing channel (22) has a guide recess (36) on the side facing the steam chamber (11).

3. A steam pressure matching device as described in claim 2, characterized in that: The guide recess (36) and the guide protrusion (35) are arranged in a circumferential pattern on the horizontal projection plane.

4. A steam pressure matching device as described in claim 3, characterized in that: The regulating valve (31) includes a valve stem (311) slidably connected to the lifting plate (32) and an anti-detachment part (312) fixed to the upper end of the valve stem (311). The valve stem (311) of different regulating valves (31) has different lengths, and the circular plug (313) is fixed to the bottom of the valve stem (311).

5. A steam pressure matching device as described in claim 4, characterized in that: The valve stem (311) is also fixed with a retaining ring, and a return spring (37) is provided between the retaining ring and the lifting plate (32).

6. A steam pressure matching device as described in claim 1, characterized in that: The steam chamber (11) is connected to a driving steam inlet (12), and the mixing chamber (21) is connected to a suction steam inlet (13).

7. A steam pressure matching device as described in claim 6, characterized in that: Each mixing chamber (21) corresponds to a steam inlet (13).

8. A steam pressure matching device as described in claim 1, characterized in that: The lifting rod (33) is connected to an electric actuator or a pneumatic actuator.

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