CN2863262Y

CN2863262Y - Hydrodynamic blow-off device

Info

Publication number: CN2863262Y
Application number: CN 200520009810
Authority: CN
Inventors: 陈志民
Original assignee: 陈志民
Current assignee: Chongqing Mingzhu Mechanical & Electric Co., Ltd.
Priority date: 2005-08-19
Filing date: 2005-08-19
Publication date: 2007-01-31
Anticipated expiration: 2015-08-19

Abstract

A liquid-power pollution discharger relative to a pollution discharge device comprises a spray pipe, soil pick-up tubes and an injector. The spray pipe has a pick-up cavity and a spray cavity, which comprises a curved rotary cavity with decreasing diameter and a curved rotary with increasing diameter. The utility model is arranged on the bottom of a liquid can or pool. Power liquid flowing through the injector and the spray pipe, the pressure is transformed into kinetic which produces a suction effect towards the effluent or sludge settled on the bottom of the can or pool, so that the effluent or sludge is cleaned out automatically, to improve water quality, reduce environment pollution, improve efficiency, and reduce cost. The utility model has extremely simple structure and low cost.

Description

The fluid power excretion machine

Technical field:

The utility model relates to blowdown apparatus, and all trades and professions such as be used for oil, chemical industry, environmental protection, medicine, mine, build, brewage are removed sewage, mud, the dirt in cesspool, sludge-tank, the settling tank.

Background technology:

China's utility application number is 9824523PX, and the applying date is on October 16th, 1998, and the utility model name is called " negative pressure excretion machine ".This excretion machine is mainly by sealing the anemostat that joins successively, mixing tube, receive compositions such as mud chamber, anemostat is tapered, its big end and discharge pipeline join, receive the mud chamber the other end with help comb to join, help comb to receiving mud indoor chamber extension, be provided with the row's of helping nozzle receiving the inner chamber middle part of mud chamber, the row's of helping nozzle and mixing tube coaxial position, corresponding mutually, the other end of the row's of helping nozzle with help comb to join, be connected to four on the profile of mud chamber and receive the mud pipe receiving, four receive the mud pipe same horizontal plane uniform to around extend, receive mud Guan Yiduan with receive the mud chamber and communicate, the other end of mud pipe received is connected to horn mouth.The weak point of this excretion machine is a complex structure, the cost height.

The utility model content:

The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of fluid power excretion machine is provided, and this excretion machine can not only automatic immediate, effectively blowdown, and simple in structure, and cost is low.

In order to realize the purpose of above-mentioned utility model, its technical scheme is:

The fluid power excretion machine comprises playpipe 1, dirt sucking tube 2, nozzle 3, the ejection end of nozzle 3 extend in the suction chamber of playpipe 1, the other end of nozzle 3 is positioned at outside the playpipe 1, fixedly connected with the power fluid input pipe, nozzle 3 is fixedlyed connected with playpipe 1, dirt sucking tube group 2 comprises 2-6 root dirt sucking tube, one end of each dirt sucking tube is contained on the tube wall at suction chamber place of playpipe 1, and communicate with the suction chamber of playpipe 1, the minimum area of passage of the suction chamber in the playpipe 1 is 1.3-4 a times of each dirt sucking tube area of passage sum, nozzle 3, the suction chamber in the playpipe 1 and the center line of spray chamber are on same axis, and its suction chamber and spray chamber communicate, suction chamber in the playpipe 1 and spray chamber are integral with the hyperbola revolution cavity groups of changing from small to big for curve revolution cavity from large to small, flow velocity in described each dirt sucking tube is that 0.5-1.3 is/second, angle between the bus of the conical cavity in the outlet section of nozzle 3 and the axis of playpipe 1 is 10-25 °, the jet velocity of nozzle 3 is the 13-38 meter per second, the ratio of the area of passage of the minimum cross section of the spray chamber in the area of passage of the port of export of nozzle 3 and the playpipe 1 is 0.08-0.3, the port of export of nozzle 3 to the distance of the minimum cross section of the spray chamber of playpipe 1 be the spout internal diameter 3-8 doubly, the area of passage of the minimum cross section of the suction chamber of playpipe 1 be playpipe 1 spray chamber minimum cross section area of passage 13-26 doubly.

1, suction chamber area of passage and each dirt sucking tube area of passage sum should be got proper proportion.Under identical injection flow velocity, suction chamber is too big, and suction vacuum can reduce, and is unfavorable to sucking mud; Suction chamber is too little, and the flow velocity of mud is too fast in the chamber, can increase suction process along the journey loss.The ratio of common two areas is got 1.3～4 and is advisable.Be inhaled into dielectric viscosity big, when concentration is big, the ratio of suction chamber area and each dirt sucking tube area sum should lean on upper limit value.

2, choosing of the velocity in pipes of dirt sucking tube should be determined according to dielectric properties such as the viscosity of cesspool or sludge-tank, settling tank bottom mud, concentration, selects 0.5～1.3 meter per second to be advisable usually; Viscosity is big, when concentration is big velocity in pipes should select low, otherwise can suitably select height.

3, the value of nozzle chamber reducing conical surface tapering influences the length and the choke pressure of nozzle, also influences the suction chamber length of playpipe.Take all factors into consideration and to select 10 °～25 ° approximate median to be advisable.

4, spray flow velocity and hang down very much negative pressure or the vacuum reduction that in suction chamber, forms; Flow velocity is too high, though pressure and discharge capacity that interior negative pressure of suction chamber or vacuum can improve power fluid require also corresponding raising.Take all factors into consideration, flow velocity should be chosen in 13～38 meter per seconds.Commute sucks the desirable lower bound of medium, and what the suction difficulty was big can suitably get big injection flow velocity.

5, at the bottom of needs are got rid of the pond or during jar end mud, power fluid is through nozzle 3 and playpipe 1, because nozzle reducing effect, power fluid is produced throttling, power fluid pressure is reduced, flow velocity increases, change pressure energy into the speed energy, thereby in playpipe, form low-pressure cavity, to being deposited at the bottom of the pond or the mud at jar end produces swabbing action, with at the bottom of the pond or jar end mud suck in the suction chamber of playpipes 1 by dirt sucking tube group 2, and mix with power fluid, behind the spray chamber of playpipe 1, again by outside the blowdown pipeline drain tank.

When 6, adopting the blowdown of fluid power excretion machine, in case of the pond or jar in sewage sludge viscosity too big or precipitability is too strong, suction mud at need, can be with the valve closing of pond or jar outer blow-off pipe, backwash is carried out at the bottom of forcing power fluid by nozzle 3,

playpipe

1 and 2 pairs of ponds of a dirt sucking tube or jar end, reduce near dielectric viscosity and the precipitability suction side of dirt sucking tube 2, be convenient to open suction mud behind the blow-off pipe valve, dirt.

The utility model compared with prior art has following technique effect: 1, this fluid power excretion machine is simple in structure, production cost is low, easy for installation; 2, adopt the utility model spoil disposal, increased at the bottom of the pond or the discharge pressure reduction of jar end mud, reduced the viscosity of settled sludge, increased the velocity of discharge of mud, guaranteed at the bottom of the pond or jar end mud can an automatic immediate be discharged effectively; 3, behind employing the utility model, can reduce clear pond or clear jar working strength of workers, reduce the pollution of mud, save a large amount of labour costs, improve in the pond or water quality in the jar environment.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

In Fig. 1: 1---playpipe; 2---the dirt sucking tube group; 3---nozzle.

The specific embodiment:

In Fig. 1, the fluid power excretion machine comprises playpipe 1, dirt sucking tube group 2 and nozzle 3.Suction chamber and spray chamber in the playpipe 1 are followed successively by straightway, conic section section or cubic curve section, the cavity that obtains around coaxial rotating after the smooth connection of hyperbolic line segment, and the cavity that is rotarily formed around axle of straightway is a suction chamber.Conic section section or cubic curve section, the cavity that the smooth connection of hyperbolic line segment back is rotarily formed around axle is a spray chamber.

It below is the utility model is removed mud in the settling tank in oilfield surface engineering a specific embodiment.

For giving full play to the excretion machine effect, pressure was 0.4～0.6MPa when present embodiment designing requirement power fluid entered nozzle, and the jeting effect of a power fluid should be taken away three parts of mud or dirty medium.In view of the above, according to mud and sewage medium proterties in this settling tank and on-the-spot process conditions, this fluid power excretion machine characteristic parameter value is as follows:

Choose 4 dirt sucking tubes, the area of passage of the suction chamber in the playpipe 1 is got 2 times of area of passage sum of each dirt sucking tube, suction chamber in the playpipe 1 and spray chamber are made by the curve revolution cavity that diminishes gradually greatly with by little and are become big hyperbola revolution cavity gradually and be one, flow velocity in the dirt sucking tube is got 0.9 meter per second, angle between the bus of the conical cavity in the outlet section of nozzle 3 and the axis of playpipe 1 is got 15 °, the jet velocity of nozzle 3 is got 31 meter per seconds, the ratio of the area of passage of the minimum cross section of the spray chamber in the area of passage of the port of export of nozzle 3 and the playpipe 1 gets 0.1, the port of export of nozzle 3 is got 3.5 times of spout internal diameter to the distance of the minimum cross section of the spray chamber of playpipe 1, and the area of passage of the minimum cross section of the suction chamber of playpipe 1 is got 20 times of area of passage of minimum cross section of the spray chamber of playpipe 1.

Produce the fluid power excretion machine of installation and operation by above mentality of designing and value and obtained satisfied operational effect in oil field scene operation.

For different industries or same industry, though same user, different pond or jar defeated its physical behavior of medium of quilt and on-the-spot process conditions all variant.According to practice, these differences all can be in that to keep fluid power excretion machine structure constant substantially, and only become its nozzle diameter, soil pick-up caliber, adjust nozzle to the distance of playpipe smallest cross-sectional, adjust mode such as nozzle ejection flow velocity and realize.As for the sludge quantity of per hour carrying, except can adjusting the said structure parameter, also can realize by the platform number of increase and decrease fluid power excretion machine or the size of change fluid power excretion machine, all can reach satisfied effect.

Claims

1, a kind of fluid power excretion machine, comprise playpipe (1), dirt sucking tube group (2), nozzle (3), the ejection end of nozzle (3) extend in the suction chamber of playpipe (1), the other end of nozzle (3) is positioned at outside the playpipe (1), fixedly connected with the power fluid input pipe, nozzle (3) is fixedlyed connected with playpipe (1), and dirt sucking tube group (2) comprises 2-6 root dirt sucking tube, one end of each dirt sucking tube is contained on the tube wall at suction chamber place of playpipe (1), and communicates with the suction chamber of playpipe (1); The minimum area of passage that it is characterized in that the suction chamber in the playpipe (1) for the 1.3-4 of each dirt sucking tube area of passage sum doubly, the suction chamber in nozzle (3), the playpipe (1) and the center line of spray chamber are on same axis, and its suction chamber and spray chamber communicate; The serve as reasons curve revolution cavity that diminishes gradually greatly and become big hyperbola revolution cavity groups gradually and be integral of suction chamber in the playpipe (1) and spray chamber by little, flow velocity in described each dirt sucking tube is the 0.5-1.3 meter per second, angle between the bus of the conical cavity in the outlet section of nozzle (3) and the axis of playpipe (1) is 10-25 °, the jet velocity of nozzle (3) is the 13-38 meter per second, the ratio of the area of passage of the minimum cross section of the spray chamber in the area of passage of the port of export of nozzle (3) and the playpipe (1) is 0.08-0.3, the port of export of nozzle (3) to the distance of the minimum cross section of the spray chamber of playpipe (1) be the spout internal diameter 3-8 doubly, the area of passage of the minimum cross section of the suction chamber of playpipe (1) be playpipe (1) spray chamber minimum cross section area of passage 13-26 doubly.

2, fluid power excretion machine according to claim 1, it is characterized in that choosing 4 dirt sucking tubes, the area of passage of the suction chamber in the playpipe (1) is got 2 times of area of passage sum of each dirt sucking tube, flow velocity in the dirt sucking tube is got 0.9 meter per second, angle between the bus of the conical cavity in the outlet section of nozzle (3) and the axis of playpipe (1) is got 15 °, the jet velocity of nozzle (3) is got 31 meter per seconds, the ratio of the area of passage of the minimum cross section of the spray chamber in the area of passage of the port of export of nozzle (3) and the playpipe (1) gets 0.1, the port of export of nozzle 3 is got 3.5 times of spout internal diameter to the distance of the minimum cross section of the spray chamber of playpipe 1, and the area of passage of the minimum cross section of the suction chamber of playpipe (1) is got 20 times of area of passage of minimum cross section of the spray chamber of playpipe (1).