CN217976776U - Shockproof adjustable ejector with detachable supporting ring - Google Patents

Abstract

The utility model relates to an adjustable sprayer takes precautions against earthquakes of supporting ring can be dismantled in area, this sprayer include electric adjusting mechanism, adjust the awl, adjust awl supporting ring, high-pressure fluid entry, low-pressure fluid entry, high pressure nozzle, mixing chamber throat and diffusion chamber. This sprayer can adjust the load variation condition in order to adapt to the operation through the change to improve the injection performance of sprayer, the utility model discloses an adjust the awl and hold the ring and solved the deviation problem of adjusting the awl, adjust the awl and hold the ring simultaneously and inlay in sprayer high pressure flow way the cover, be detachable, thereby can change the regulation awl of the different diameters of support ring adaptation of different internal diameters. The utility model discloses there is more superior injection performance under the variable load operation, has slowed down the stress and the vibration that the regulation awl received, and regulation awl life is elongated to the performance deterioration problem that causes because of the vibration in the operation process has been solved.

Description

Shockproof adjustable ejector with detachable supporting ring

Technical Field

The utility model belongs to the technical field of the sprayer, the adjustable sprayer that takes precautions against earthquakes of supporting ring can be dismantled in the aspect of concretely relates to heat supply of steam power plant, exhaust steam utilization and waste heat recovery etc.

Background

In recent years, the problem of the demand for thermal loads continuing to increase rapidly while the electrical loads increasing relatively slowly has become more pronounced. The technical reserve and research depth of part of power plants are not enough, the technical route and equipment selection are not optimized aiming at the heat supply requirements of different types of heat users, and the technical application lags behind the energy storage peak regulation and frequency modulation, the high-efficiency long-distance transmission, the wide-load high-efficiency industrial heat supply, the intelligent heat supply pipe control and the like. Therefore, the cogeneration units are in urgent need to develop efficient, flexible and safe heat and steam supply technologies.

The injector heat supply and steam supply technology has the advantages of flexible steam source selection, good heat load regulation performance, realization of flexible allocation of thermoelectric load and the like, does not need modification of a steam turbine middle connecting door, does not need moving parts and the like, and has wide application prospect in the field of industrial heat supply and steam supply. However, the ejector with a fixed structure has poor operation performance under variable working conditions, the operation effect of the existing adjustable ejector is not ideal due to high flow rate and operation vibration in the ejector, and the injection ratio of work has a large lifting space, so that the ejector with good operation performance and stable operation under variable working conditions needs to be provided.

Disclosure of Invention

In order to overcome the problems existing in the prior art, the utility model aims to provide a can adapt different operating condition, job stabilization and can maintain the adjustable injector that takes precautions against earthquakes of higher injection performance area detachable support ring. Present adjustable sprayer or do not adjust awl supporting structure, or supporting structure is fixed, adjusts the awl and changes the inflexibility, the utility model discloses an adjust the awl and support the ring and solved the deviation problem of adjusting the awl, adjust the awl and support the ring and inlay in sprayer high pressure flow way the cover, thereby can dismantle and change the regulation awl of the different diameters of support ring adaptation of different internal diameters. The ejector changes the area ratio of the ejector through the adjusting cone, limits the excessive expansion of high-pressure fluid, greatly improves the ejection performance of the ejector, improves the utilization rate of dead steam, and meets the requirement of high-performance operation under different working conditions; the design of adjusting the awl support ring has not only effectively avoided the negative effects of operation in-process vibration to adjusting the awl, promotes the job stabilization nature of sprayer to convenient the dismantlement can the not unidimensional regulation awl of adaptation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

1. the anti-vibration adjustable ejector with the detachable supporting ring is characterized by comprising an electric adjusting mechanism 1, an adjusting cone 2, a high-pressure fluid inlet 3, an adjusting cone supporting ring 4, a low-pressure fluid inlet 5, a high-pressure nozzle 6, a mixing chamber 7, a mixing chamber throat 8 and a diffusion chamber 9; the electric adjusting mechanism 1 is connected with the adjusting cone 2 through threads to control the position of the adjusting cone 2 at the throat of a nozzle, an adjusting cone supporting ring 4 is sleeved and embedded inside a high-pressure flow passage of the ejector and is in transition fit with the high-pressure flow passage of the ejector, the adjusting cone 2 is positioned in the adjusting cone supporting ring 4 and is in transition fit with the adjusting cone supporting ring 4, and a mixing chamber 7 is positioned outside the high-pressure flow passage of the ejector and is sequentially connected with a mixing chamber throat 8 and a diffusion chamber 9; the high-pressure nozzle 6 is positioned at the front end of the high-pressure flow passage of the ejector, the high-pressure fluid inlet 3 is communicated with the high-pressure flow passage of the ejector, and the low-pressure fluid inlet 5 is communicated with the mixing chamber 7.

The length of the adjusting cone supporting ring 4 is limited between the wall surface of the high-pressure fluid inlet 3 and the inlet section of the high-pressure nozzle 6; the adjusting cone supporting ring 4 can be detached and replaced, so that the adjusting cones 2 with different diameters can be adapted.

The diameter of the adjusting cone 2 is variable, and the diameter of the working section of the adjusting cone which is matched with the adjusting cone supporting ring 4 and acts on the high-pressure nozzle 6 is smaller than the diameter of the non-working section which is connected with the electric adjusting mechanism 1.

The mixing chamber 7 is connected with a mixing chamber throat 8 in a welded manner, and the mixing chamber throat 8 is connected with a diffusion chamber 9 in a welded manner.

The utility model discloses beneficial effect who has:

(1) The ejector is mainly applied to the aspects of heat supply units, waste steam utilization and the like of a thermal power plant, and due to the load change of the thermal power plant, the ejector with a fixed structure has poor operation performance under the load change. A take adjustable sprayer that takes precautions against earthquakes of detachable support ring, come control through electric adjusting mechanism to adjust the position of awl in high pressure nozzle department to change the area ratio of sprayer, restrict high-pressure fluid's overexpansion, improved the performance that draws of sprayer greatly, promoted the utilization ratio of exhaust steam, satisfied the high performance operation under the different work condition.

(2) The injector can vibrate when operating at high pressure, which can cause the coaxiality deviation of the deviation and inclination of the adjusting cone of the injector, and the calculation shows that the coaxiality deviation can seriously affect the performance of the injector. A design of adjusting awl support ring in the adjustable sprayer of taking precautions against earthquakes of support ring can be dismantled in area can effectively avoided the negative effects of operation in-process vibration to the adjusting awl, promotes the job stabilization nature of sprayer, prolongs the life of sprayer, simple structure, convenient dismantlement can the not unidimensional regulation awl of adaptation.

Drawings

FIG. 1 is a schematic view of a shock absorbing adjustable eductor with a removable support ring. The numbering in the figures corresponds to: the device comprises an electric adjusting mechanism 1, an adjusting cone 2, a high-pressure fluid inlet 3, an adjusting cone supporting ring 4, a low-pressure fluid inlet 5, a high-pressure nozzle 6, a mixing chamber 7, a mixing chamber throat 8 and a diffusion chamber 9.

Fig. 2 is a schematic structural view of the adjusting cone supporting ring of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 shows a schematic structural view of a shakeproof adjustable ejector with a detachable support ring, which comprises: electric adjustment mechanism 1: controlling the position of the adjusting cone and changing the area ratio of the ejector; the adjusting cone 2: acting in the high-pressure nozzle to limit the over expansion of the high-pressure fluid and adapt to different operating conditions; high-pressure fluid inlet 3: introducing a high pressure fluid into the interior of the injector; adjusting cone supporting ring 4: the detachable component plays a supporting role on the adjusting cone, avoids the influence of vibration generated by the operation of the ejector on the coaxiality of the adjusting cone and enables the operation of the ejector to be stable; low-pressure fluid inlet 5: introducing a low pressure fluid into the interior of the injector; the high-pressure nozzle 6: the high-pressure fluid reaches supersonic flow through a high-pressure nozzle; the mixing chamber 7: providing a space where the high pressure fluid and the low pressure fluid are mixed with each other; mixing chamber throat 8: further mixing the high pressure fluid and the low pressure fluid to fully mix them; pressure expansion chamber 9: the speed of the mixed fluid is reduced, and the pressure is increased. The electric adjusting mechanism 1 is connected with the adjusting cone 2 through threads to control the position of the adjusting cone 2 at the throat of a nozzle, an adjusting cone supporting ring 4 is sleeved and embedded inside a high-pressure flow passage of the ejector and is in transition fit with the high-pressure flow passage of the ejector, the adjusting cone 2 is positioned in the adjusting cone supporting ring 4 and is in transition fit with the adjusting cone supporting ring 4, and a mixing chamber 7 is positioned outside the high-pressure flow passage of the ejector and is sequentially connected with a mixing chamber throat 8 and a diffusion chamber 9; the high-pressure nozzle 6 is positioned at the front end of the high-pressure flow passage of the ejector, the high-pressure fluid inlet 3 is communicated with the high-pressure flow passage of the ejector, and the low-pressure fluid inlet 5 is communicated with the mixing chamber 7.

Fig. 1 shows a schematic structural view of an anti-vibration adjustable injector with a detachable support ring, and the main working principle is as follows: high pressure fluid enters from the high pressure fluid inlet 3 and is then ejected from the high pressure nozzle 6, the high pressure fluid with supersonic flow forms a low pressure area at the nozzle outlet, thereby entraining the low pressure fluid flowing in from the low pressure fluid inlet 5, the high pressure fluid and the low pressure fluid begin to mix in the mixing chamber 7 and fully mix in the mixing chamber throat 8, then the flow rate is reduced through the pressure expansion chamber 9, the fluid pressure is increased to overcome the ejector outlet pressure, and finally the mixed fluid is ejected from the ejector. If the pressure parameter of the high-pressure fluid changes, the position of the adjusting cone 2 at the throat of the high-pressure nozzle 6 needs to be adjusted through the electric adjusting mechanism 1, and the injection performance of the ejector is improved by changing the area ratio. The adjustment cone 2 needs to be adjusted and the cone supporting ring 4 is supported, and the two is connected in a transition fit mode, and the adjustment cone supporting ring 4 can reduce the stress and the vibration which are applied to the ejector during operation, so that the coaxiality of the adjustment cone in the operation process of the ejector is prevented from generating deviation due to vibration, and the ejection performance is prevented from deteriorating. In order to avoid the influence of the adjusting cone support ring 4 on the flow of the high-pressure fluid, the length of the adjusting cone support ring should be limited between the wall surface of the high-pressure fluid inlet 3 and the inlet section of the high-pressure nozzle 6. The adjusting cone supporting ring 4 is sleeved and embedded inside the high-pressure flow passage of the injector in a transition fit mode, and can be detached and replaced, so that the adjusting cones 2 with different diameters are adapted.

The diameter of the adjusting cone 2 is variable, and the diameter of the working section of the adjusting cone, which cooperates with the adjusting cone support ring 4 and acts on the high-pressure nozzle 6, is smaller than the diameter of the non-working section connected to the electric adjusting mechanism 1. The stroke of the adjusting cone 2 ensures that the non-working section cannot collide with the adjusting cone supporting ring 4, and simultaneously ensures that the working section cannot move to the inner surface of the left end flange of the ejector, and the upper limit of the diameter range of the working section which can be changed by the adjusting cone 2 depends on the diameter value of the non-working section.

Claims (4)

1. A shockproof adjustable injector with a detachable supporting ring is characterized by comprising an electric adjusting mechanism (1), an adjusting cone (2), a high-pressure fluid inlet (3), an adjusting cone supporting ring (4), a low-pressure fluid inlet (5), a high-pressure nozzle (6), a mixing chamber (7), a mixing chamber throat (8) and a diffusion chamber (9); the electric adjusting mechanism (1) is in threaded connection with the adjusting cone (2) to control the position of the adjusting cone (2) at the throat of a nozzle, an adjusting cone supporting ring (4) is sleeved inside a high-pressure flow passage of the ejector and is in transition fit with the high-pressure flow passage of the ejector, the adjusting cone (2) is positioned in the adjusting cone supporting ring (4) and is in transition fit with the adjusting cone supporting ring (4), and a mixing chamber (7) is positioned outside the high-pressure flow passage of the ejector and is sequentially connected with a throat (8) of the mixing chamber and a diffusion chamber (9); the high-pressure nozzle (6) is positioned at the front end of the high-pressure flow passage of the ejector, the high-pressure fluid inlet (3) is communicated with the high-pressure flow passage of the ejector, and the low-pressure fluid inlet (5) is communicated with the mixing chamber (7).

2. Anti-vibration adjustable injector with detachable support ring according to claim 1, characterized in that the adjustment cone support ring (4) is limited in length between the wall of the high-pressure fluid inlet (3) to the inlet cross section of the high-pressure nozzle (6); the adjusting cone supporting ring (4) can be detached and replaced, so that the adjusting cones (2) with different diameters can be adapted.

3. Anti-rattle adjustable injector with removable support ring according to claim 1, characterized in that the diameter of the adjustment cone (2) is variable, the diameter of the active section of the adjustment cone cooperating with the adjustment cone support ring (4) and acting on the high pressure nozzle (6) being smaller than the diameter of the inactive section associated with the electric adjustment mechanism (1).

4. Anti-rattle adjustable injector with removable support ring according to claim 1, characterized in that the mixing chamber (7) is connected with the mixing chamber throat (8) in a welded manner, the mixing chamber throat (8) being connected with the diffuser chamber (9) in a welded manner.

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