CN2769546Y

CN2769546Y - Hydraulic energy-saving high-pressure pump

Info

Publication number: CN2769546Y
Application number: CNU2005200222893U
Authority: CN
Inventors: 王律衍
Original assignee: YUNNAN WEIHAO ENERGY SOURCE DEVELOPMENT Co Ltd
Current assignee: Yunnan Guanfang Construction Group Co., Ltd.; Yunnan Weihao Energy Source Development Co., Ltd.
Priority date: 2005-03-02
Filing date: 2005-03-02
Publication date: 2006-04-05
Anticipated expiration: 2015-03-02

Abstract

The utility model discloses a hydraulic energy-saving high-pressure mechanism which is mainly used for the seawater desalting processing apparatus taking filters as anti-osmosis membranes and for similar drinking water purifying apparatus. The utility model is characterized in that the right side and the left side of a pump body are respectively connected with a front end cover and a rear end cover, and a piston rod are arranged in the cavity of the pump body; a water inlet valve, a water outlet valve, a water inlet pipe and a water outlet pipe are arranged in the front end cover, wherein the water outlet pipe is communicated with an anti-osmosis membrane which is connected with the pump body; a two-position three-way valve arranged in the pump body is controlled by the pressures of the left cavity and the right cavity of the pump body to alter directions; a discharge pipe is arranged outside the pump body, etc. The hydraulic energy-saving high-pressure pump is trailed to prove that the seawater desalting apparatus with the mechanism can effectively recycle and use the high-pressure energy of the exhausted waste dense salt water, so that the electric power or the manpower is greatly saved, the cost of fresh water is obviously reduced, and the volume and the weight of the apparatus are correspondingly reduced. The utility model fundamentally overcomes the defect of large energy consumption existing in the original seawater desalting apparatus.

Description

A kind of hydraulic type energy-saving and high-pressure pump

One, technical field

The utility model belongs to the energy-conservation mechanism of a kind of hydraulic type.Being mainly used in the reverse osmosis membrane is the desalination of sea water processing equipment of filter, can also be used for similar drinking water purification equipment.

Two, background technique

According to for information about, utilize reverse osmosis membrane (hereinafter to be referred as the RO film) as the filter that desalinizes seawater, be developed to product, the working principle of RO film is: under the high pressure of water pump, be divided into two strands after forcing sea brine infiltration RO film, one water is drinkable desalination water, and another strand is the useless brine of band high-pressure energy.This working principle has determined that desalinizing seawater needs higher working pressure.But existing fresh-water generator is not all with the mechanism of energy recovery, that is: when the high pressure of water pump body forces seawater through the RO film, penetrate a part of drinkable water, the useless brine of another part band high pressure has just directly been drained, not reclaiming these by the incidental high-pressure energy of brine of being drained, also is as a bit with the RO film as the purified water cleaning equipment of filter.Serious like this causing desalinizes seawater and the cost raising of purified water and the waste of power source.

Three, model utility content

Main task of the present utility model is: the deficiency according to existing RO film fresh-water generator and similar drinking water purification equipment existence, a kind of hydraulic type energy-saving pump is provided, and replace original pump, make high-pressure energy subsidiary in seawater or the addle be reclaimed use.Fundamentally improve its energy utilization ratio and the volume and weight that reduces equipment.

Main technical schemes of the present utility model is: the front cover of the pump housing and rear end cover, be connected with the pump housing by bolt, in the piston cavity in the pump housing, piston be housed, piston is connected by nut with piston rod, inlet valve, outlet valve are housed in the front cover, intake pipe, outlet pipe, outlet pipe is connected with the RO film, the RO film is communicated with the pump housing by recovery tube once more, two position three-way valve is equipped with in pump housing inside, and discharge pipe is equipped with in the outside, and relief valve is equipped with in the pump housing and rear end cover top.

The utility model passes through probationary certificate: 1, effectively reclaimed the high-pressure energy that is discharged, improved capacity usage ratio, reduced the load of motor or manpower.2, handled desalination water or purified water cost are low, and the volume ratio of its equipment is originally little, and the quality of water meets national standard for drinking with identical originally.

Four, description of drawings

Fig. 1 is general assembly drawing of the present utility model and fundamental diagram.

Fig. 2 is to be used to help Fig. 1 that the auxiliary view of working state is described.

With reference to Fig. 1, figure the utility model is made up of RO film 1, inlet valve 2, inlet valve spring 3, two position three-way valve 4, recovery tube 5, fresh water pipe 6, discharge pipe 7, the pump housing 8, relief valve spring 9, relief valve 10, rear end cover 11, piston rod 12, stuffing box gland 13, chamber left end 14, piston 15, seal ring 16, chamber right-hand member 17, front cover 18, outlet valve spring 19, outlet valve 20, outlet pipe 21, intake pipe 22 etc.

With reference to Fig. 1, concrete structure of the present utility model: front cover 18 and rear end cover 11, be connected with the pump housing 8 by bolt, piston 15 is housed in the piston cavity in the pump housing 8, piston and piston rod 12, connect by nut, inlet valve 2 is housed in the front cover 18, outlet valve 20, intake pipe 22, outlet pipe 21, outlet pipe is communicated with RO film 1, the RO film is communicated with the pump housing 8 once more by recovery tube 5, and two position three-way valve 4 is equipped with in pump housing inside, and two position three-way valve is subjected to chamber 14, a pump housing left side, the pressure control in right chamber 17 and change direction, discharge pipe 7 is equipped with in the outside, and relief valve 10 is equipped with in the pump housing 8 and rear end cover 11 tops.

Piston 15 described in the structure, piston rod 12 seal with seal ring 16, stuffing box gland 13 respectively.

Front cover 18 described in the structure, rear end cover 11 seal by the O RunddichtringO with the pump housing 8.

With reference to Fig. 1, working principle of the present utility model: exterior power source acts on the piston rod 12, piston rod affects piston 15 side-to-side movements, when piston 15 during from the low order end end motion left of piston cavity, in piston cavity right-hand member 17 vacuum appears just, at this moment, under the atmospheric effect in the external world, the sea brine that the pump housing is outer, by intake pipe 22, the inlet valve 2 of flowing through, inlet valve spring 3 is backed down, last sea brine is filled to piston cavity right-hand member 17, and piston 15 moves to the high order end of piston cavity this moment, finishes water absorption course for the first time.When piston 15 from the high order end of cavity during to right-hand member 17 motions, on the one hand, inlet valve spring 3 resets, and the fluid pressure in the cavity is closed inlet valve 2.On the other hand, the fluid pressure in the cavity backs down outlet valve spring 19, and the sea brine of band high pressure flows through outlet valve 20, and flows to 1 li of RO film by outlet pipe 21.Under the effect of high pressure, the sea brine that the RO film is 1 li is divided into two strands, is generally drinkable desalination water, and flows out from fresh water pipe 6.Because high pressure brine is pushed two position three-way valve 4 to high order end (with reference to Fig. 2), make the useless brine of another strand for the band high-pressure energy, enter once more in the pump housing 8 by recovery tube 5, flow to cavity left end 14, help exterior power source to promote piston 15 to right-hand member 17 motions.Because the incidental high pressure of these useless brines is arranged, participated in promoting the setting-out motion of piston 15, corresponding external force source just can lower, and reaches purpose of energy saving.After piston 15 moves to low order end, begin second water absorption course again, at this moment, piston 15 is again from the low order end end motion of turning left, and on the one hand, the sea brine of outside is by intake pipe 22, inlet valve 2, another flows to cavity right-hand member 17, on the other hand, the residual useless brine that the piston cavity left end is 14 li is pushed two position three-way valve 4 to the low order end (see figure 1), like this, these useless brines finally are discharged to pump housing outside at last by discharge pipe 7, repeat action noted earlier then again.If when causing that owing to line clogging or other reason salt solution pressure in the pipeline is greater than operating pressure, the high pressure brine in the pump housing is just got rid of from discharge pipe 7, reaches the purpose of pressure release, protection equipment with this.

More than being basic embodiment of the present utility model, also is most preferred embodiment.

Claims

A kind of hydraulic type energy-saving and high-pressure pump, contain RO film (1), inlet valve (2), outlet valve (20), intake pipe (22), outlet pipe (21), it is characterized in that: front cover (18) and rear end cover (11), be connected with the pump housing (8) by bolt, piston (15) is housed in the piston cavity in the pump housing (8), piston is connected by nut with piston rod (12), inlet valve (2) is housed in the front cover (18), outlet valve (20), intake pipe (22), outlet pipe (21), outlet pipe is communicated with RO film (1), the RO film is communicated with the pump housing (8) by recovery tube (5), two position three-way valve (4) is equipped with in pump housing inside, two position three-way valve is subjected to chamber (14), a pump housing left side, the pressure control in right chamber (17) and change direction, discharge pipe (7) is equipped with in the outside, and relief valve (10) is equipped with in the pump housing (8) and rear end cover (11) top.