CN200952465Y

CN200952465Y - Constant pressure type booster pump

Info

Publication number: CN200952465Y
Application number: CN 200620052485
Authority: CN
Inventors: 蔡应麟; 徐兆火
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-13
Filing date: 2006-10-13
Publication date: 2007-09-26
Anticipated expiration: 2016-10-13

Abstract

The utility model discloses a constant-pressure supercharging pump, which comprises a supercharging working region and a power region; in the supercharging working region, a tube-pressure chamber(1.1), a low-pressure chamber(1.2) and a high-pressure chamber(1.3) are formed by a pump cover, a piston valve base and a triangular isolation film, a pressure-adjusting valve(1.5) is arranged on the pump cover, a flow-guide hole arranged in the valve cavity is communicated with the high-pressure chamber. The utility model is characterized in that a sealed water tank (1.7) is arranged on top of the pump cover, the water tank has a water inlet arranged in the pressure-adjusting valve cavity and a pressure-releasing end communicated with the tube-pressure chamber; and the high-pressure chamber, the flow-guide hole, the pressure-adjusting valve cavity, the water tank and the tube-pressure chamber form a pressure-releasing water-flow passage. The pressure-releasing passage is arranged on the pump cover body in the utility model, which solves the problem of constant-pressure output, avoids water creepage due to a plurality of tube joints, eliminates noise caused by pipeline vibration, and simplifies appearance of the supercharging pump.

Description

The constant pressure type suction booster

Technical field

The utility model relates to the suction booster of the reverse osmosis filtering membrane tube that is used for the pure water processing, especially refers to the isopiestic pressure mechanism in this suction booster pump cover.

Background technique

In the water purification machine that adopts Reverse Osmosis Technology, tap water in the extraneous water supply webmaster is after suction booster is pressurized to constant pressure, be delivered to reverse osmosis filtering membrane tube (being called for short RO film pipe), in RO film pipe, be treated to pure water by reverse osmosis, thereby ensure the normal water supply of water purification machine, so the good supercharging of suction booster, constant voltage performance are the guarantees of RO film pipe, water purification machine proper functioning.

The general configuration of suction booster is referring to Fig. 1.Suction booster inside is divided into supercharging working area and power-section by pump cover seat 5 from top to bottom, power-section comprises the motor that is installed in the pump housing 7 and three escapements 6 of driving thereof, the supercharging working area on top is divided into three function chambers, be respectively that the central chamber 2.1 of the central chamber of pump cover 1 and piston valve base 2 is withheld and the hyperbaric chamber 1.2 that forms, zone and the pipe between the piston valve base around central chamber in the pump cover are pressed chamber 1.1, three low pressure chambers 2.2 that form between piston valve base 2 and the triangle diaphragm 4, wherein pipe presses chamber 1.1 that the water intake 1.3 that communicates with extraneous water supply webmaster is arranged, and there is the water outlet 1.4 that leads to RO film pipe in 1.2 in hyperbaric chamber.Escapement 6 produces axially reciprocating by motor driving, and upwards push low pressure valve block in the low pressure chamber 2.1 repeatedly by being installed in three piston pushing blocks 3 on the diaphragm 4 successively, press the low-pressure water in the chamber 1.1 to be sucked into low pressure chamber 2.2 pipe, clamp-on hyperbaric chamber 1.2 again, consequent high pressure water is discharged from water outlet 1.4.

Because different its system water pressures of the specifications and models of RO film are also different, system water pressure to suction booster also has different requirements from 60psi to 120psi, therefore the suction booster that is adopted must possess the function of pressure regulation, just can slow down the aging of RO film, improves the precision of the salt rejection rate of RO film simultaneously.Referring to Fig. 2, the inventor is being provided with a pressure regulation valve pocket that extends internally, has opened a relief hole 1.6 on the pump cover top for this reason on the pump cover 1, wherein the pressure regulation valve pocket has pod apertures to communicate with hyperbaric chamber 1.2, and the inner of relief hole communicates with the pressure regulation valve pocket, the outer end is connected a flexible sebific duct 8 and leads to water intake 1.3.Be installed in block, spring, sealing block that pressure regulator valve 1.5 in the pressure regulation valve pocket comprises capping, band screw, the sealing block of being shored by this spring is in order to the inner of confined bed discharge orifice and relief hole.According to the system water pressure parameter of the RO film of employed a certain specifications and models, regulate the position of block and set the pressure that the pod apertures of this pressure regulator valve is opened by screwing screw.When the hydraulic pressure that produces when the hyperbaric chamber did not surpass this system water pressure parameter, pod apertures was sealed by sealing block, pressure regulator valve place closed state, and this moment, pressurized water all was pressed in the RO film tube chamber; In case the hydraulic pressure that the hyperbaric chamber produces surpasses system water pressure parameter, then sealing block is backed down, pressure regulator valve is opened, and the superpressure water in hyperbaric chamber just flows to sebific duct by pod apertures, pressure regulation valve pocket, pressure relief opening, is pressed in the chamber 1.1 by three-way pipe remittance water intake arrival pipe in the lump with the water of external world's water supply webmaster.

This structure can solve the problem of the required specified system water pressure of suction booster output RO film pipe preferably, but because the setting of pressure relief opening, flexible sebific duct, three-way pipe, in use, when the hydraulic pressure in hyperbaric chamber excessive or use a period of time after, the flexible glue in-pipe flow causes that sebific duct constantly vibrates rapidly, and the infiltration phenomenon also appears in the junction at two ends easily, other assembly in the water purification machine is made moist, easily cause other fault; Moreover, the vibration of flexible sebific duct produces big noise, and for indoor user and the suspicion of Yan Shiyou interference, and the flexible sebific duct of peripheral hardware also strengthened the space hold of suction booster, to the packed and transported band inconvenience.

Summary of the invention

For overcoming the above-mentioned defective of prior art, the purpose of this utility model is to provide a kind of can better solve the problem of the required specified system water pressure of suction booster output RO film pipe, when pump cover infiltration phenomenon, pressure release do not take place simultaneously noise free and the constant pressure type suction booster.

The technical solution of the utility model is: the constant pressure type suction booster mainly comprises supercharging working area and power-section, in the supercharging working area, press chamber, low pressure chamber, hyperbaric chamber three big function chambers by having formed pipe between pump cover, piston valve base and the triangle diaphragm, pressure regulator valve also is installed on pump cover, there is pod apertures to communicate in its valve pocket with the hyperbaric chamber, be provided with sealed cistern one at the top of pump cover, the water intake of tank is located in the pressure regulation valve pocket, the pressure relieving end of tank leads to pipe presses the chamber, makes hyperbaric chamber, pod apertures, pressure regulation valve pocket, tank, pipe press the chamber to constitute a pressure release flow channel.

Adopt the utility model structure, the pressure release flow channel is arranged on the pump cover body, solve the problem of suction booster constant voltage output equally preferably by the required specified system water pressure of RO film pipe, but also avoided because of the pipe joint infiltration phenomenons that take place more, simultaneously also stop the noise that pipe vibration sends, and simplified the surface structure of suction booster.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the suction booster of prior art;

Fig. 2 is the constant voltage principle schematic of prior art;

Fig. 3 is a constant voltage principle schematic of the present utility model;

Fig. 4 is the stereogram of pump cover among the utility model one embodiment;

Fig. 5 is the plan view of Fig. 4;

Fig. 6 be among Fig. 5 A-A to sectional view;

Fig. 7 be among Fig. 5 B-B to sectional view;

Fig. 8 is the sectional view of relative Fig. 7 of pump cover among another embodiment.

Among the figure: 1, pump cover, 1.1, pipe presses the chamber, 1.2, the hyperbaric chamber, 1.3, water intake, 1.4, water outlet, 1.5, pressure regulator valve, 1.6, relief hole, 1.7, tank, 1.8, cover plate, 1.9, sealing block, 2, piston valve base, 2.1, central chamber, 2.2, low pressure valve, 3, the piston pushing block, 4, diaphragm, 5, the pump cover seat, 6, escapement, 7, the pump housing, 8, flexible sebific duct, 9, pressure relief opening.

Embodiment

Introduce the utility model in detail below in conjunction with accompanying drawing.

As Fig. 3, Fig. 4, shown in Figure 5, in structure of the present utility model, pressure relief is arranged in pump cover 1 body fully.

With reference to Fig. 6 and Fig. 7.On pump cover, install in the valve pocket of pressure regulator valve 1.5, have pod apertures to communicate with hyperbaric chamber 1.2.Be provided with sealed cistern 1.7 one at the pump cover top, the water intake of tank is located in the pressure regulation valve pocket, and this water intake seals with sealed in the lump block 1.9 roof pressures of pod apertures near the valve pocket bottom.The pressure relief opening 9 of tank is located at the inboard tube wall top of water intake 1.3.When the hydraulic pressure that produces when hyperbaric chamber 1.2 surpasses system water pressure parameter, sealing block 1.9 is backed down, the water intake and the pod apertures of tank are opened, pod apertures, pressure regulation valve pocket, tank connect, superpressure water in the hyperbaric chamber 1.2 just flows to pipe by pod apertures, pressure regulation valve pocket, tank 1.7, water intake 1.3 and presses chamber 1.1, forms a pressure release flow channel.

With reference to Fig. 8.The pressure relief opening 9 of tank 1.7 also can be opened in the position that pipe is pressed the close water intake 1.3 of chamber 1.1, when sealing block 1.9 is backed down, pressure regulator valve is promptly opened, and the superpressure water in the hyperbaric chamber 1.2 just directly flows to pipe by pod apertures, pressure regulation valve pocket, tank 1.7 and presses chamber 1.1, forms a pressure release flow channel.

Be convenient processing, tank is a groove in pump cover end face depression, seals pad and cover plate 1.8 in the upper-end surface of groove, and fastening by screw, sealing.

During the processing pump cover, tank also can be one-body molded with pump cover.

Claims

1, a kind of constant pressure type suction booster, mainly comprise supercharging working area and power-section, in the supercharging working area by pump cover (1), form pipe between piston valve base (2) and the triangle diaphragm and pressed chamber (1.1), low pressure chamber (2.2), hyperbaric chamber (1.2) three big function chambers, pressure regulator valve (1.5) also is installed on the pump cover, there is pod apertures to communicate in its valve pocket with hyperbaric chamber (1.2), it is characterized in that: be provided with one sealed cistern (1.7) at the top of pump cover (1), the water intake of tank is located in the pressure regulation valve pocket, the pressure relieving end of tank leads to pipe presses chamber (1.1), makes hyperbaric chamber (1.2), pod apertures, the pressure regulation valve pocket, tank (1.7) and pipe press chamber (1.1) to constitute a pressure release flow channel.

2, constant pressure type suction booster according to claim 1 is characterized in that: the pressure relief opening (9) of tank (1.7) is opened in the position that pipe is pressed the close water intake (1.3) of chamber (1.1).

3, constant pressure type suction booster according to claim 1 is characterized in that: the pressure relief opening (9) of described tank (1.7) is opened in the inboard tube wall top of pressing chamber (1.1) near pipe of water intake (1.3) of pump.

4, according to claim 1 or 2 or 3 described constant pressure type suction boosters, it is characterized in that: described tank (1.7) is one to be located at the groove of pump cover end face, and is pressed on it by sealing gasket and cover plate (1.8) envelope.

5, according to claim 1 or 2 or 3 described constant pressure type suction boosters, it is characterized in that: described tank (1.7) is one-body molded with pump cover.

6, according to claim 1 or 2 or 3 described constant pressure type suction boosters, it is characterized in that: the water intake of described tank (1.7) is located in the pressure regulation valve pocket, and this water intake seals with sealed in the lump block (1.9) roof pressure of pod apertures near the valve pocket bottom.

7, constant pressure type suction booster according to claim 4 is characterized in that: the water intake of described tank (1.7) is located in the pressure regulation valve pocket, and this water intake seals with sealed in the lump block (1.9) roof pressure of pod apertures near the valve pocket bottom.