CN214150691U

CN214150691U - Double-box off-line SDI tester

Info

Publication number: CN214150691U
Application number: CN202023180389.2U
Authority: CN
Inventors: 张金山; 夏志先; 赵九娟
Original assignee: SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Current assignee: SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-09-07
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a two box off-line SDI apparatus, its characterized in that: the first water storage tank body is connected with a first pipeline, the second water storage tank body is connected with a second pipeline, the tail ends of the first pipeline and the second pipeline are respectively connected with two connectors of a first tee joint, the rest connectors of the first tee joint are connected with a third pipeline, and the tail end of the third pipeline is connected with a connector of a second tee joint; one end of the booster pump is connected with a sixth pipeline, one end of the pneumatic pump is connected with a seventh pipeline, and the tail ends of the sixth pipeline and the seventh pipeline are respectively connected with the rest two interfaces of the second tee joint; the other end of the booster pump is connected with a fourth pipeline, the other end of the pneumatic pump is connected with an eighth pipeline, and the tail ends of the fourth pipeline and the eighth pipeline are correspondingly connected with two interfaces of a four-way joint respectively; the two remaining interfaces of the four-way joint are respectively connected with a ninth pipeline and a return pipeline, the tail end of the ninth pipeline is connected with a pressure reducing valve, and the pressure reducing valve is connected with a diaphragm capsule water inlet part through a fifth pipeline; the tail end of the backflow pipeline extends into the first water storage tank body or the second water storage tank body.

Description

Double-box off-line SDI tester

Technical Field

The utility model relates to a reverse osmosis system technical field, in particular to a double box off-line SDI apparatus that is arranged in reverse osmosis system SDI value to survey.

Background

In a reverse osmosis system, due to the characteristics of a reverse osmosis membrane, the SDI (pollution index) of inlet water needs to be controlled, the SDI of the inlet water of the reverse osmosis membrane is generally required to be less than 5, and if the SDI of the inlet water of the membrane is more than 5, the reverse osmosis membrane is very easy to pollute and block, the differential pressure of the system is increased, and the cleaning is difficult. The standard test method currently accepted in the industry is the ASTM method (4189-95), which is essentially a flow rate decay test by passing a water sample through a 47mm diameter, 0.45um pore size membrane under a certain pressure (0.21 MPa). A membrane pore size of 0.45um is chosen because at this pore size colloidal material will plug the membrane more easily than hard particulate material (e.g. sand, scale etc.).

There are many SDI apparatus of making according to the ASTM method in the market, current SDI apparatus adopts the online operation mode mostly, install in whole water treatment system usually, need independent opening, it is partly among the water treatment system to belong to, can not bring the pollution index who takes the use or detect the difference as a monitoring devices alone and use, can only fix on-line measuring, the lower water of unable survey pressure, the application range of water quality pollution index apparatus receives the limit, can't realize intermittent type survey, thereby also make the pollution index survey of water bring a lot of inconveniences.

In view of the above, some SDI measuring apparatuses currently use off-line testing techniques, such as: (1) chinese patent application CN200620100476.3 discloses a device for measuring pollution index SDI of water quality, which can realize off-line test, but has many disadvantages: the whole equipment is an integrated device from the water tank to the tester, the water quantity required when SDI detection is carried out is about 30-40L, and even reaches 100L if SDI is low, and multiple measurements are required to ensure the stability of detection. This makes it difficult to transport the water to a place where a power supply can be connected (a water supply point is not provided on a general water room site) after taking water. Meanwhile, there may be a case where no water is detected after water is taken, which may cause inaccurate detection results. In addition, the SDI measuring apparatus is designed to take into consideration the problem of instrument fixation. (2) Chinese patent application CN201620815046.3 discloses an off-line SDI measuring device, which, although it is considered that a cart can be used to transport a water tank, the whole device is placed on the cart, and there is a high possibility that water splashes on a pump when water is filled or the water pump rusts due to long-term placement in a humid environment. And if the water sample to be detected is arranged in a basement or other places where a cart is not convenient to carry, the carrying is more difficult. Meanwhile, the defect of inaccurate measurement caused by water shortage exists. (3) Chinese patent application CN201922502469.6 discloses a portable sludge density index testing device using a portable power source to solve the problem of boosting of a booster pump, but if the booster pump is boosted by the portable power source, the required electric quantity is very large, a 220V power source is required, even a very small booster pump has a power of over 100W, and the continuous operation time requires about 20 minutes. A larger power source is required as a source of power for the water pump. And the SDI tester is fixed in the suitcase for inconvenient measurement.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve above-mentioned problem and go on, aim at provides a double box formula off-line SDI apparatus.

The utility model provides a double box off-line SDI apparatus has such characteristic, include: the device comprises a fixed support, a first water storage tank body, a second water storage tank body, a booster pump, a pneumatic pump, a reflux valve, a test valve, a pressure gauge, a pressure reducing valve, a diaphragm capsule, a first tee joint, a second tee joint and a four-way joint, wherein the first water storage tank body is connected with a first pipeline, and a first water inlet valve, a first order and a second water inlet valve are sequentially arranged on the first pipeline; the second water storage tank body is connected with a second pipeline, and a third water inlet valve, a second water inlet valve and a fourth water inlet valve are sequentially arranged on the second pipeline; the tail end of the first pipeline and the tail end of the second pipeline are respectively connected with two interfaces of a first tee joint, the rest one interface of the first tee joint is connected with a third pipeline, and the tail end of the third pipeline is connected with one interface of the second tee joint; the booster pump and the pneumatic pump are respectively fixed on the bracket; one end of the booster pump is connected with a sixth pipeline, and a fifth water inlet valve is arranged on the sixth pipeline; one end of the pneumatic pump is connected with a seventh pipeline, and a sixth water inlet valve is arranged on the seventh pipeline; the tail end of the sixth pipeline and the tail end of the seventh pipeline are respectively and correspondingly connected with the remaining two interfaces of the second tee joint; the diaphragm box is fixed on the fixed bracket and comprises a water inlet part and a water outlet part which are connected, and the water inlet part and the water outlet part are both provided with microporous filter diaphragms; the other end of the booster pump is connected with a fourth pipeline, the other end of the pneumatic pump is connected with an eighth pipeline, and the tail end of the fourth pipeline and the tail end of the eighth pipeline are correspondingly connected with two interfaces of the four-way valve respectively; the rest two interfaces of the four-way are respectively connected with a ninth pipeline and a backflow pipeline; the testing valve is arranged on the ninth pipeline, the tail end of the ninth pipeline is connected with one end of the pressure reducing valve, and the other end of the pressure reducing valve is connected with the water inlet part of the diaphragm capsule through the fifth pipeline; a third water inlet valve and a water return valve are sequentially arranged on the return pipeline, and the tail end of the return pipeline correspondingly extends into the first water storage tank body or the second water storage tank body; the pressure gauge is arranged on the return pipeline and is positioned between the water return valve and the third control valve.

The utility model provides an in the double box off-line SDI apparatus, can also have such characteristic: the first water storage tank body and the second water storage tank body are identical in structure and equal in volume, and the volume is 10-25 liters.

The utility model provides an in the double box off-line SDI apparatus, can also have such characteristic: wherein, the first water storage tank body and the second water storage tank body are wide-mouth barrels with handles.

The utility model provides an in the double box off-line SDI apparatus, can also have such characteristic: wherein the first pipeline is connected at the height position 1/5 away from the bottom surface of the first water storage tank body; the second pipe is connected at a height position from the second tank bottom surface 1/5.

The utility model provides an in the double box off-line SDI apparatus, can also have such characteristic: wherein the fixed position of the booster pump is higher than the fixed position of the pneumatic pump.

The utility model provides an in the double box off-line SDI apparatus, can also have such characteristic: wherein, the water outlet part of the diaphragm capsule is fixed at the height position which is not lower than 80cm on the bracket.

The utility model provides an in the double box off-line SDI apparatus, can also have such characteristic: the ninth pipeline adopts a hose at a connecting section between the pressure reducing valve and the test valve; the fifth pipeline is a hose.

The utility model provides an in the double box off-line SDI apparatus, can also have such characteristic: wherein, the hose is a PC hose or a PE hose.

The utility model provides an in the double box off-line SDI apparatus, can also have such characteristic: wherein the booster pump is a booster pump with the maximum output pressure of the outlet of the pump being more than 0.3 MPa; the pneumatic pump is a pneumatic pump with the maximum output pressure of the pump outlet being greater than 0.3 MPa.

The utility model provides an in the double box off-line SDI apparatus, can also have such characteristic: wherein, the micropore filter membrane is a membrane with the aperture of 0.45 um.

The utility model discloses an effect and effect:

1. the utility model discloses a double box off-line SDI apparatus makes and is changed into two little volumetric buckets by a big volumetric water storage container through double box design, and its light quick detachable transport has solved the problem of the inconvenient transport of present water storage container and because the water source is not enough to lead to detecting inaccurately, needs the problem that detects again.

2. The utility model discloses a double box off-line SDI apparatus is provided with pneumatic pump and booster pump simultaneously, solves at present because on-the-spot no power and need carry the too far problem with equipment and water sample that awaits measuring.

3. The utility model discloses a two box off-line SDI apparatus with the booster pump and the integrated height design of pneumatic pump, high low temperature is provided with and does benefit to and improves space utilization, and the booster pump generally is not corrosion-resistant in addition with its setting in the high position, can avoid being splashed by the splash of water, effectively slows down the easy rusty problem of booster pump, and the corrosion-resistant setting of pneumatic pump can not cause the influence at the low position yet.

4. The utility model discloses an among the double box off-line SDI apparatus, the play water part of bellows is fixed highly is not less than 80 cm's position on the fixed bolster, is convenient for fixed SDI apparatus and test back water sample discharge, and the unstable problem of SDI apparatus has been stopped to this kind of setting moreover.

Drawings

Fig. 1 is a schematic structural diagram of a dual-box off-line SDI tester according to an embodiment of the present invention.

Reference numerals: a first inlet valve 11; a second inlet valve 12; a third water inlet valve 13; a fourth inlet valve 14; a fifth water inlet valve 15; a sixth inlet valve 16; a test valve 17; a return valve 18; a pressure reducing valve 19; a first password 21; a second password 22; a third order 23; a first water storage tank body 31; a second water storage tank body 32; a pneumatic pump 41; a booster pump 42; a first duct 51; a second conduit 52; a third conduit 53; a fourth conduit 54; a fifth pipe 55; a sixth conduit 56; a seventh pipe 57; an eighth conduit 58; a ninth conduit 59; a return line 50; a pressure gauge 6; a first tee 71; a second tee 72; a cross 73; a fixed bracket 8; the water inlet portion 91 of the bellows; the water outlet portion 92 of the capsule.

Detailed Description

In order to make the utility model discloses the technological means, creation characteristic, achievement purpose and efficiency that realize are easily understood and are known, and following embodiment combines the figure right the utility model discloses a double box off-line SDI apparatus does specifically expounded.

< example >

As shown in fig. 1, a double-box off-line SDI tester comprises: the device comprises a fixed support 8, a first water storage tank body 31, a second water storage tank body 32, a booster pump 42, a pneumatic pump 41, a return valve 18, a test valve 17, a pressure gauge 6, a pressure reducing valve 19 and a diaphragm capsule.

The first water storage tank body 31 and the second water storage tank body 32 have the same structure and the same volume, and the volume is 10-25 liters. In this embodiment, the first and second

water storage containers

31 and 32 are wide-mouth tubs each having a handle.

The first water storage tank 31 is connected to a first pipe 51, and the first pipe 51 is connected at a height position which is a total height 1/5 from the bottom surface of the first water storage tank 31. The first pipe 51 is provided with a first inlet valve 11, a first inlet valve 21 and a second inlet valve 12 in sequence. The second water storage tank 32 is connected to the second pipe 52, and the second pipe 52 is connected at a height position which is an overall height 1/5 from the bottom surface of the second water storage tank 32. The second pipeline 52 is sequentially provided with a third water inlet valve 13, a second water inlet valve 22 and a fourth water inlet valve 14. The tail end of the first pipeline 51 and the tail end of the second pipeline 52 are respectively connected with two interfaces of a first tee 71, the rest one interface of the first tee 71 is connected with a third pipeline 53, and the tail end of the third pipeline 53 is connected with one interface of a second tee 72.

The booster pump 42 and the pneumatic pump 41 are respectively installed and fixed on the fixed bracket. The fixed position of the booster pump 42 is higher than the fixed position of the air pump 41. The maximum output pressure of the pump outlets of the booster pump 42 and the pneumatic pump 41 is more than 0.3MPa

One end of the booster pump 42 is connected with a sixth pipeline 56, and a fifth water inlet valve 15 is arranged on the sixth pipeline 56. One end of the pneumatic pump 41 is connected with a seventh pipeline 57, and the seventh pipeline 57 is provided with a sixth water inlet valve 16. The tail end of the sixth pipeline 56 and the tail end of the seventh pipeline 57 are correspondingly connected with the remaining two joints of the second tee 72 respectively.

The diaphragm box is fixed on the fixed support 8 in a welding or bolt connection mode, the diaphragm box comprises a water inlet part 91 and a water outlet part 92 of the connected diaphragm box, and the water inlet part 91 and the water outlet part 92 of the diaphragm box are both provided with microporous filter diaphragms which are diaphragms with the aperture of 0.45 um. The water outlet portion 92 of the capsule is fixed to the support at a height not less than 80 cm.

The other end of the booster pump 42 is connected to the fourth pipeline 54, the other end of the pneumatic pump 41 is connected to the eighth pipeline 58, and the end of the fourth pipeline 54 and the end of the eighth pipeline 58 are respectively connected to two ports of the four-way valve 73. The remaining two connections of the cross 73 are connected to the ninth conduit 59 and the return conduit 50, respectively.

The test valve 17 is provided on the ninth conduit 59 for operation during testing. The end of the ninth conduit 59 is connected to one end of the pressure reducing valve 19 and the other end of the pressure reducing valve 19 is connected to the water inlet portion 91 of the bellows through the fifth conduit 55.

The third water storage tank 23 and the water return valve 18 are sequentially arranged on the return pipeline 50, and the tail end of the return pipeline 50 correspondingly extends into the first water storage tank 31 or the second water storage tank 32. The pressure gauge 6 is arranged on the return pipeline 50 and is positioned between the water return valve and the third guide 23.

In the present embodiment, the fifth pipe 55 is a hose; the ninth pipe 59 employs a hose at a connection section between the pressure reducing valve 19 and the test valve 17; the hose is a PC hose or a PE hose. And the rest pipelines are all made of PVC hard pipes.

The use method of the double-box off-line SDI tester of the embodiment is as follows:

a diaphragm capsule in the double-box type off-line SDI tester is a core component for measuring SDI, and the SDI is measured by an ASTM method. The double-box off-line SDI tester of this embodiment during operation, only draw water from a wide-mouth bucket can. Another wide-mouth bucket is as reserve bucket, can dismantle the dress water at any time for third pipeline 53 can get water all the time, has ensured the stability of measurement work and has gone on. Further, the measurement work can be secured by only one pump operation of the pneumatic pump 41 and the booster pump 42. At present, an air source is generally arranged on a water treatment site, and under the condition, the water inlet valve 16 is opened, the water inlet valve 15 is closed, and the pneumatic pump 41 is used for working. When the 220V power supply is available on site, the booster pump 42 is preferentially adopted to work, in this case, the water inlet valve 15 is opened, and the water inlet valve 16 is closed. During operation, the backflow pipeline 50 is provided with a guide 23 to facilitate manual control of backflow into the wide-mouth barrel. The pressure gauge 6 is used to monitor the pressure inside the pipe between the return valve 18 and the pipe 23.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a double box off-line SDI apparatus which characterized in that includes: a fixed bracket, a first water storage tank body, a second water storage tank body, a booster pump, a pneumatic pump, a reflux valve, a test valve, a pressure gauge, a pressure reducing valve, a diaphragm capsule, a first tee joint, a second tee joint and a four-way joint,

the first water storage tank body is connected with a first pipeline, and a first water inlet valve, a first order and a second water inlet valve are sequentially arranged on the first pipeline;

the second water storage tank body is connected with a second pipeline, and a third water inlet valve, a second water inlet valve and a fourth water inlet valve are sequentially arranged on the second pipeline;

the tail end of the first pipeline and the tail end of the second pipeline are respectively connected with two interfaces of the first tee joint, the rest one interface of the first tee joint is connected with a third pipeline, and the tail end of the third pipeline is connected with one interface of the second tee joint;

the booster pump and the pneumatic pump are respectively fixed on the fixed support;

one end of the booster pump is connected with a sixth pipeline, and a fifth water inlet valve is arranged on the sixth pipeline;

one end of the pneumatic pump is connected with a seventh pipeline, and a sixth water inlet valve is arranged on the seventh pipeline;

the tail end of the sixth pipeline and the tail end of the seventh pipeline are respectively and correspondingly connected with the remaining two interfaces of the second tee joint;

the diaphragm box is fixed on the fixed support and comprises a water inlet part and a water outlet part which are connected, and the water inlet part and the water outlet part are both provided with microporous filter diaphragms;

the other end of the booster pump is connected with a fourth pipeline, the other end of the pneumatic pump is connected with an eighth pipeline, and the tail end of the fourth pipeline and the tail end of the eighth pipeline are respectively and correspondingly connected with two interfaces of the four-way valve;

the rest two interfaces of the four-way are respectively connected with a ninth pipeline and a backflow pipeline;

the test valve is arranged on the ninth pipeline, the tail end of the ninth pipeline is connected with one end of the pressure reducing valve, and the other end of the pressure reducing valve is connected with the water inlet part of the diaphragm capsule through a fifth pipeline;

a third water inlet valve and a water return valve are sequentially arranged on the return pipeline, and the tail end of the return pipeline correspondingly extends into the first water storage tank body or the second water storage tank body;

the pressure gauge is arranged on the return pipeline and is positioned between the water return valve and the third service guide.

2. The dual-box off-line SDI meter of claim 1 wherein:

the first water storage tank body and the second water storage tank body are identical in structure and equal in volume, and the volume is 10-25 liters.

3. The dual-box off-line SDI meter of claim 2 wherein:

the first water storage tank body and the second water storage tank body are wide-mouth barrels with handles.

4. The dual-box off-line SDI meter of claim 1 wherein:

wherein the first pipe is connected at a height position 1/5 from the bottom surface of the first water storage tank body;

the second pipe is connected at a height position from the second tank bottom surface 1/5.

5. The dual-box off-line SDI meter of claim 1 wherein:

wherein the fixed position of the booster pump is higher than the fixed position of the pneumatic pump.

6. The dual-box off-line SDI meter of claim 1 wherein:

wherein, the water outlet part of the diaphragm capsule is fixed at the height position which is not lower than 80cm on the bracket.

7. The dual-box off-line SDI meter of claim 1 wherein:

wherein the ninth pipeline adopts a hose at the connecting section between the pressure reducing valve and the test valve;

the fifth pipeline is a hose.

8. The dual-box off-line SDI meter of claim 7 wherein:

wherein, the hose is a PC hose or a PE hose.

9. The dual-box off-line SDI meter of claim 1 wherein:

wherein the booster pump is a booster pump with the maximum output pressure of the outlet of the pump being more than 0.3 MPa;

the pneumatic pump is a pneumatic pump with the maximum output pressure of the pump outlet being greater than 0.3 MPa.

10. The dual-box off-line SDI meter of claim 1 wherein:

wherein, the micropore filter membrane is a membrane with the aperture of 0.45 um.