CN218439953U

CN218439953U - Water-jet air extractor

Info

Publication number: CN218439953U
Application number: CN202222661359.6U
Authority: CN
Inventors: 孙健; 孙金玲; 孙宏庆
Original assignee: Lianyungang Hongqing Electric Power Auxiliary Engine Development Co ltd
Current assignee: Lianyungang Hongqing Electric Power Auxiliary Engine Development Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-02-03
Anticipated expiration: 2032-10-10

Abstract

The utility model discloses a water jet air ejector, relate to air ejector technical field, including the intake chamber, the air extraction chamber, the shrinkage pipe, choke and diffusion tube, the intake chamber bottom is equipped with the air extraction chamber, the air extraction chamber left part is equipped with the intake pipe, the air extraction chamber bottom is equipped with the shrinkage pipe, shrinkage socle bottom is equipped with the choke, the choke bottom is equipped with the diffusion tube, the intake pipe bottom is equipped with disappointing pipe, be equipped with disappointing mouthful in the disappointing pipe, be equipped with fixed pipe in the disappointing pipe, be equipped with the movable rod in the fixed pipe, the movable rod bottom is equipped with compression spring, the compression spring bottom is connected bottom the fixed pipe, movable rod upper portion is equipped with the sealing plug, be equipped with the sealing plug in disappointing mouthful, fixed socle portion is equipped with the dead lever, dead lever left end and disappointing intraductal wall connection, disappointing socle portion is equipped with the blast pipe, the problem of current equipment leading to steam to suck backward when steam pressure is too big has been solved.

Description

Water-jet air extractor

Technical Field

The utility model belongs to the technical field of the aspirator, concretely relates to water jet air ejector.

Background

The steam and the mixed air which are not formed with condensed water in the condenser are required to be rapidly discharged for keeping vacuum in the condenser, so that the steam and the mixed air are required to be pumped out by using an air pump, the water in a water tank is pumped into a water chamber of the air pump by mainly depending on a water jet pump, the water is sprayed out through a nozzle, the pressure energy of the pressure water is converted into speed energy by the nozzle, the water flow is jetted out from the nozzle at high speed to generate high vacuum in an air pumping chamber, a steam-gas mixture in the air pumping condenser enters a diffusion pipe together, the water flow speed is reduced, the pressure is gradually increased, and finally the steam-gas mixture is discharged from the diffusion pipe at a pressure slightly higher than the atmospheric pressure and enters the water tank for circulation. However, because the pressure of the steam entering the condenser is sometimes unstable, when the steam pressure is too high, the steam pressure entering the air extractor is too high, a ram is formed in the air inlet of the air extractor, and impacts the water column sprayed by the nozzle, so that the water column sprayed by the nozzle is damaged, and the air extractor cannot form vacuum in time, which increases the pressure in the air suction chamber of the air extractor, and when the pressure in the air suction chamber of the air extractor is higher than the pressure in the condenser, the steam or partial water flow in the air suction chamber is sucked back into the condenser, so that the operation of the condenser is damaged.

Patent application No. 201920995610.8 discloses an energy efficient water jet air extractor: the hollow steam distribution shell is additionally arranged in the suction chamber, and a plurality of steam distribution suction holes are uniformly processed in the hollow steam distribution shell, so that the sucked air uniformly enters the vacuum chamber, and the water column is ensured not to be damaged. However, although the above prior patents realize the uniform entry of the mixed steam into the vacuum chamber, the steam pressure is not changed, and the steam ejected from the suction hole still has strong impact and still breaks the water column ejected from the nozzle.

SUMMERY OF THE UTILITY MODEL

The invention aims to: the utility model aims at providing a water jet air extractor to solve the problem that current equipment leads to the steam to suck back when steam pressure is too big.

The utility model provides a water jet air ejector, includes intake chamber, exhaust chamber, shrinkage pipe, choke and diffusion tube, intake chamber bottom be equipped with the exhaust chamber, the exhaust chamber in be equipped with the nozzle, the exhaust chamber left part be equipped with the intake pipe, exhaust chamber bottom be equipped with the shrinkage pipe, shrinkage pipe bottom be equipped with the choke, choke bottom be equipped with the diffusion tube, the steam and the air of condenser get into the exhaust chamber through the intake pipe, high pressure water gets into the exhaust chamber through the intake chamber, the mixed gas of vacuum exhaust chamber suction steam and air, in the shrinkage pipe is taken along with high pressure water, gets into the throat again, gets into the diffusion tube again, its characterized in that: and the bottom of the air inlet pipe is provided with an air leakage pipe.

Further, the disappointing intraductal mouth that loses heart that is equipped with, disappointing intraductal fixed pipe that is equipped with, fixed intraductal movable rod that is equipped with, movable rod bottom be equipped with compression spring, compression spring bottom be connected with fixed socle portion, movable rod upper portion be equipped with the sealing plug, disappointing mouthful in be equipped with the sealing plug, the sealing plug is stopped up disappointing mouthful and is formed sealing state, when the mixed gas pressure in the intake pipe was too big, the mixed gas supports and presses the sealing plug, the sealing plug lapse for partly gaseous entering is lost heart intraductal, fixed socle portion be equipped with the dead lever, dead lever left end and disappointing intraductal wall connection, fix fixed pipe in losing heart through the dead lever.

Furthermore, the bottom of the air release pipe is provided with an exhaust pipe, and mixed gas in the air release pipe is discharged into the water tank through the exhaust pipe for recycling.

Furthermore, a water tank is arranged at the bottom of the diffusion pipe, and an exhaust pipe is arranged at the upper part of the water tank.

Furthermore, the upper part of the water inlet chamber is provided with a water inlet, the upper part of the water inlet is provided with a water inlet pipe, the bottom of the water inlet pipe is provided with a water jet pump, the left part of the water jet pump is provided with a water outlet pipe, the water outlet pipe is communicated with the right part of the water tank, and the water in the water tank is pumped into the water inlet pipe through the water outlet pipe in a high-pressure mode by the water jet pump and then enters the water inlet chamber.

Compared with the prior art, the utility model has the advantages of it is following: through set up the disappointing pipe bottom the intake pipe, when the unstable excessive time of vapor pressure in the condenser, get into the steam in the intake pipe and the mixture of air, support and press the sealing plug, under movable rod and compression spring's effect, the sealing plug moves down, make the mouth that loses heart open, some mist gets into the intraductal discharge that loses heart, make the atmospheric pressure that gets into in the pumping chamber stable, can not produce too big punching press and strike nozzle spun water column and make the water column destroy, just also can not make the atmospheric pressure in the pumping chamber too big and lead to the mist to suck back and get into in the condenser, when the vapor pressure in the condenser is stable, the atmospheric pressure that gets into in the intake pipe is stable, under the effect that compression spring kick-backs, the mouth that loses heart is blockked up again to the sealing plug. The problem of current equipment lead to steam to suck back when steam pressure is too big is solved.

Drawings

Fig. 1 is an external view of the present invention;

FIG. 2 is a block diagram of the present invention;

fig. 3 is an enlarged view of a portion of fig. 2 according to the present invention;

fig. 4 is a view showing the movable state of the sealing plug of fig. 3 according to the present invention.

The attached drawings are as follows: 1 intake chamber, 2 air extraction rooms, 3 shrink pipes, 4 choke, 5 diffusion tubes, 6 intake pipes, 7 disappointing pipes, 8 disappointing mouths, 9 fixed tubes, 10 movable rods, 11 compression spring, 12 sealing plugs, 13 dead levers, 14 blast pipes, 15 water tanks, 16 water inlets, 17 inlet tubes, 18 jetting pumps, 19 outlet pipes, 20 nozzles.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Examples

As shown in fig. 1-4:

the utility model provides a water jet air ejector, includes intake chamber 1, aspiration chamber 2, shrinkage pipe 3, choke 4 and diffuser 5, 1 bottom of intake chamber be equipped with aspiration chamber 2, 2 indoor nozzles 20 that are equipped with of bleeding, 2 left parts of aspiration chamber be equipped with intake pipe 6, 2 bottoms of aspiration chamber be equipped with shrinkage pipe 3, 3 bottoms of shrinkage pipe be equipped with

choke

4, 4 bottoms of choke be equipped with diffuser 5, its characterized in that: and the bottom of the air inlet pipe 6 is provided with an air leakage pipe 7.

Further, disappointing pipe 7 in be equipped with disappointing mouth 8, disappointing pipe 7 in be equipped with fixed pipe 9, fixed pipe 9 in be equipped with movable rod 10, movable rod 10 bottom be equipped with compression spring 11, compression spring 11 bottom be connected bottom fixed

pipe

9, 10 upper portions of movable rod be equipped with sealing plug 12, disappointing mouth 8 in be equipped with sealing plug 12, fixed pipe 9 bottom be equipped with

dead lever

13, 13 left ends of dead lever and 7 inner wall connections of disappointing pipe.

Further, an exhaust pipe 14 is arranged at the bottom of the air escape pipe 7.

Furthermore, a water tank 15 is arranged at the bottom of the diffusion pipe 5, and an exhaust pipe 14 is arranged at the upper part of the water tank 15.

Furthermore, a water inlet 16 is arranged at the upper part of the water inlet chamber 1, a water inlet pipe 17 is arranged at the upper part of the water inlet 16, a water jet pump 18 is arranged at the bottom of the water inlet pipe 17, a water outlet pipe 19 is arranged at the left part of the water jet pump 18, and the water outlet pipe 19 is communicated with the right part of the water tank 15.

The utility model discloses a use method as follows:

the water injection pump 18 pumps water in the water tank 15 into the water inlet pipe 17 through the water outlet pipe 19 at a certain pressure, then the water enters the water inlet chamber 1 and enters the nozzle 20, the nozzle 20 converts the pressure energy of the pressure water into velocity energy, the water flow is ejected from the nozzle 20 at a high speed, so that high vacuum is generated in the air pumping chamber 2, a steam-gas mixture in the condenser is sucked into the air pumping chamber 2 through the air inlet pipe 6, the steam-gas mixture enters the contraction pipe 3 together with the water flow at the ejection position, enters the throat pipe 4 and then enters the diffusion pipe 5 and flows into the water tank 15, when the vapor pressure in the condenser is unstable and the pressure is overlarge, the mixed gas of steam and air sucked into the air inlet pipe 6 is overlarge, the mixed gas is pressed against the compression spring 12, so that the compression spring 11 is compressed, the movable rod 10 moves downwards in the fixed pipe 9, the sealing plug 12 also moves downwards, the air leakage port 8 is opened, a part of the mixed gas of steam and air in the air inlet pipe 6 enters the air leakage pipe 7 and then enters the air exhaust pipe 14 and enters the water tank 15, and when the sealing plug 11 in the condenser recovers to restore the normal state, the compression spring 11 is blocked, so that the vapor pressure of the air leakage port 8 is restored.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims

1. The utility model provides a water jet air ejector, includes intake chamber (1), aspiration chamber (2), shrink pipe (3), choke (4) and diffuser (5), intake chamber (1) bottom be equipped with aspiration chamber (2), aspiration chamber (2) in be equipped with nozzle (20), aspiration chamber (2) left part be equipped with intake pipe (6), aspiration chamber (2) bottom be equipped with shrink pipe (3), shrink pipe (3) bottom be equipped with choke (4), choke (4) bottom be equipped with diffuser (5), its characterized in that: and an air leakage pipe (7) is arranged at the bottom of the air inlet pipe (6).

2. A water jet air extractor as claimed in claim 1, wherein: disappointing pipe (7) in be equipped with disappointing mouth (8), disappointing pipe (7) in be equipped with fixed pipe (9), fixed pipe (9) in be equipped with movable rod (10), movable rod (10) bottom be equipped with compression spring (11), compression spring (11) bottom be connected with fixed pipe (9) bottom, movable rod (10) upper portion be equipped with sealing plug (12), disappointing mouth (8) in be equipped with sealing plug (12), fixed pipe (9) bottom be equipped with dead lever (13), dead lever (13) left end and disappointing pipe (7) inner wall connection.

3. A water jet air extractor as claimed in claim 2, wherein: an exhaust pipe (14) is arranged at the bottom of the air escape pipe (7).

4. A water jet air extractor according to claim 3 wherein: the bottom of the diffusion pipe (5) is provided with a water tank (15), and the upper part of the water tank (15) is provided with an exhaust pipe (14).

5. A water jet air extractor according to claim 4 wherein: the water inlet device is characterized in that a water inlet (16) is formed in the upper portion of the water inlet chamber (1), a water inlet pipe (17) is formed in the upper portion of the water inlet (16), a water jet pump (18) is arranged at the bottom of the water inlet pipe (17), a water outlet pipe (19) is arranged at the left portion of the water jet pump (18), and the water outlet pipe (19) is communicated with the right portion of the water tank (15).