CN205258084U - Energy -saving reverse osmosis water purification machine - Google Patents

Abstract

The utility model relates to an energy-saving reverse osmosis water purifier, which comprises a pre-filter, a booster water pump and a reverse osmosis membrane device sequentially installed on the pipeline. The reverse osmosis membrane device is provided with a water inlet, a purified water outlet and a concentrated The water outlet and the clean water outlet are connected to the faucet through the clean water pipe, and the concentrated water outlet is connected to the concentrated water discharge pipe. It is characterized in that it also includes a jet booster. The main water inlet of the jet booster is connected to the concentrated water outlet through the concentrated water pipe. The bypass water inlet of the jet booster is connected with the raw water pipe, and the water outlet of the jet booster is connected with the inlet of the pre-filter. After adopting the above structure, not only the concentrated water wasted in vain is used to save water resources, but also the concentrated water is added to the raw water, so that the water pressure after mixing is significantly improved, so that it can also meet the requirements without installing a booster pump. The water supply pressure required by the pre-filter enables this water purifier to be used in more occasions, and it also has the advantages of reducing the head of the booster pump, less power consumption, and low cost.

Description

An energy-saving reverse osmosis water purifier

technical field

The utility model relates to a water purification device, in particular to an energy-saving reverse osmosis water purifier.

Background technique

At present, water purifiers using membrane separation technology have gradually entered people's lives, especially reverse osmosis water purifiers, because their filtration accuracy can reach 0.0001 microns, which can effectively remove bacteria, viruses, chemical ions, etc. in water. Therefore, it is more popular among people. The reverse osmosis water purifier usually includes a pre-filter and a reverse osmosis membrane device installed on the pipeline in sequence. The reverse osmosis membrane device is provided with a water inlet, a purified water outlet and a concentrated water outlet. The outlet is connected to the faucet through the clean water pipe, and the concentrated water outlet is connected to the concentrated water discharge pipe. Such device has just been disclosed in "Double Quality Water Purifier" of CN204508987U as the Chinese patent authorization announcement number.

However, the above-mentioned reverse osmosis water purifier will produce a large amount of concentrated water in the water production process, and it is often discharged directly, so the waste of water resources is serious; at the same time, in order to avoid damaging the pressure of the pre-filter, the booster pump is generally installed in the reverse osmosis. The water inlet of the osmotic membrane device, and even if such a booster pump has a self-priming function, its suction is generally not greater than 2 meters, but the penetration pressure of the filter element of the general pre-filter is greater than 3 meters of water column, so such a net Once the water machine is installed in a place where the raw water pressure is less than 3 meters of water column, it is useless. In order to solve this problem, people usually install a booster pump before the reverse osmosis water purifier, but this treatment is time-consuming and laborious, and the cost is high.

Utility model content

The technical problem to be solved by the utility model is to provide an energy-saving reverse osmosis water purifier which can be installed in places with low raw water pressure and has low energy consumption, aiming at the current state of the prior art.

The technical solution adopted by the utility model to solve the above technical problems is: an energy-saving reverse osmosis water purifier, including a pre-filter, a booster pump and a reverse osmosis membrane device installed on the pipeline in sequence, and the reverse osmosis membrane device It is provided with a water inlet, a clean water outlet and a concentrated water outlet. The clean water outlet is connected to the faucet through the clean water pipe, and the concentrated water outlet is connected to the concentrated water discharge pipe. It is characterized in that it also includes a jet supercharger. The main water inlet of the booster is connected to the concentrated water outlet through the concentrated water pipe, the bypass water inlet of the jet booster is connected to the raw water pipe, and the water outlet of the jet booster is connected to the inlet of the pre-filter.

In the above solution, it is further preferred that the water purification outlet is also connected to a water storage bucket through a water purification pipe, and a device that only allows clean water to flow from the reverse osmosis membrane device to the faucet and the water storage bucket is installed in series in the water purification pipe. the first one-way valve. The water storage bucket and the one-way valve are set to facilitate users to open and use clean water.

In each of the above schemes, preferably, the concentrated water pipe is equipped with a second one-way valve that only allows the concentrated water to flow from the reverse osmosis membrane device to the main water inlet of the jet booster to prevent concentrated water Water backflow.

It is further improved that the concentrated water from the concentrated water discharge pipe is discharged through the second concentrated water discharge pipe, and a drain valve is installed in the second concentrated water discharge pipe, so that it can be discharged in time as needed. Drain concentrated water.

Compared with the prior art, because the utility model adopts the jet supercharger, on the one hand, the concentrated water energy that was wasted in vain is used to save water resources; on the other hand, the concentrated water is added to the raw water, so that the mixed water The pressure has been significantly increased, and the water supply pressure required by the pre-filter can also be met without installing a booster pump, so that such a water purifier can be used in more occasions; and this structure can also reduce the reaction accordingly. Penetrate the head of the booster water pump in the water purifier itself, reduce electric energy and save costs. Furthermore, the mixing of concentrated water and raw water is realized through the nozzle of the jet booster, which makes the mixing of the two more uniform and avoids the uneven mixing problem of other return water-saving water purifiers.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is a schematic structural view of the jet booster in Fig. 1;

Fig. 3 is the structural representation of the second embodiment of the utility model;

Fig. 4 is a schematic structural diagram of Embodiment 3 of the present utility model.

detailed description

The utility model is described in further detail below in conjunction with the accompanying drawings.

Embodiment 1, as shown in Figure 1 and Figure 2, the energy-saving reverse osmosis water purifier includes a pre-filter 1, a booster pump 2, a reverse osmosis membrane device 3 and a jet booster 4, wherein the jet booster The bypass water inlet 41 of the device 4 is used to input raw water, that is, it is used to connect the raw water pipe a, the water outlet 42 of the jet booster 4 is connected to the inlet of the pre-filter 1, and the main water inlet 43 of the jet booster passes through the lower The concentrated water pipe c1 described above communicates with the concentrated water outlet 33 described below. The reverse osmosis membrane device 3 is provided with a water inlet 31, a clean water outlet 32 and a concentrated water outlet 33, the water inlet of the reverse osmosis membrane device 3 is connected to the outlet of the pre-filter 1 through the booster pump 2, and the purified water of the reverse osmosis membrane device 3 The outlet 32 is connected to the faucet through the clean water pipe b for users to use; the concentrated water outlet 33 is connected to the concentrated water discharge pipe c. In this embodiment, the concentrated water coming out of the concentrated water discharge pipe c is divided into two paths, that is, the first path of concentrated water is connected to the main water inlet 43 of the jet booster through the concentrated water pipe c1, and is connected with the raw water coming in from the bypass water inlet 41. Mixing; the second concentrated water is discharged through the second concentrated water discharge pipe c2, and a solenoid valve (not shown in the figure) is installed in series in the second concentrated water discharge pipe c2, and the solenoid valve discharges the concentrated water according to the set conditions water.

In order to ensure that each liquid flows in a designated direction, the first one-way valve 5 that only allows clean water to flow from the reverse osmosis membrane device 3 to the faucet is installed in series in the above-mentioned clean water pipe b. A second one-way valve 6 that only allows concentrated water to flow from the reverse osmosis membrane device 3 to the main water inlet 43 of the jet booster 4 is installed in series in the concentrated water pipe c1.

The working principle of this embodiment is as follows: when producing water, the initial raw water enters the pre-filter through the jet booster, and then enters the reverse osmosis membrane device after being pressurized by the booster pump, and the purified water treated by the reverse osmosis membrane device is supplied to For user use, the pressure of the concentrated water coming out of the reverse osmosis membrane device is almost equal to the pressure at the outlet of the booster pump. At this time, it is divided into two paths, the first path of concentrated water and the raw water coming in from the bypass water inlet of the jet booster The ratio of concentrated water and raw water in the mixed water can generally be 1:1 or 2:1, so that the pressure of the mixed water can be 1/2 or more higher than the outlet pressure of the booster pump, so that the pre-set water can be solved. Solve the problem of insufficient water supply pressure of the filter element. And in the mixing process of raw water and concentrated water, because it is realized through the nozzle of the jet booster, the mixing is relatively uniform, the filtering effect is good, and the water resources and pressure of the concentrated water are fully utilized, thereby reducing the electric energy. Reduce the head of the booster water pump, save the purchase cost, and achieve the purpose of energy saving. The second concentrated water is discharged from the second concentrated water discharge pipe c2 under set conditions as required.

Embodiment 2, as shown in Figure 3, is a schematic diagram of a large-flow tankless reverse osmosis water purifier, which is different from the above-mentioned embodiment 1 in that a raw water valve 7 is installed in series in the raw water pipe, A drain valve 8 is installed in series in the concentrated water discharge pipe c2. When the user uses water, the raw water valve opens, the drain valve closes, and all concentrated water returns to the main water inlet of the jet booster. When the TDS of concentrated water (the acronym for Total Dissolved Solids refers to the concentration of total dissolved solids in water) reaches 3 times that of the raw water or the TDS exceeds the tolerance limit of the reverse osmosis membrane, the drain valve is opened to carry out Concentrated water replacement. When the user stops using water, the raw water valve and the drain valve are closed.

Embodiment three, as shown in Figure 4, is a schematic diagram of a reverse osmosis water purifier with a water storage tank 9, which is different from the above embodiment two in that the water purification between the faucet and the reverse osmosis membrane device 3 The pipe is also connected with a water storage bucket 9. When producing water, the raw water valve 7 is opened, the drain valve 8 is closed, and the concentrated water is all returned to the main water inlet of the jet booster 4 . When the TDS of the concentrated water reaches 3 times that of the raw water or the TDS exceeds the tolerance limit of the reverse osmosis membrane, the drain valve 8 is opened to replace the concentrated water. In this way, when the water production work was carried out to the fullness of the water storage bucket, the raw water valve 7 and the drain valve 8 were all closed.

Claims (4)

1. an energy-saving reverse osmosis water purifier, comprise the prefilter (1) being arranged on successively on pipeline, booster water pump (2) and reverse osmosis membrane apparatus (3), described reverse osmosis membrane apparatus (3) is provided with water inlet (31), pure water inlet (32) and dense water out (33), described pure water inlet (32) is communicated with tap by pure water pipe (b), described dense water out (33) connects concentrated water discharge pipe (c), it is characterized in that: also include jet supercharger (4), the water main inlet port (43) of this jet supercharger is communicated with described dense water out (33) through dense water pipe (c1), the bypass water inlet (41) of this jet supercharger connects former water water pipe (a), the delivery port (42) of this jet supercharger connects the entrance of prefilter (1).

2. energy-saving reverse osmosis water purifier according to claim 1, it is characterized in that: described pure water inlet (32) is also communicated with water butt (9) by pure water pipe (b), and in described pure water pipe, be equipped with the first check valve (5) that only allows water purification to flow to tap and water butt (9) from reverse osmosis membrane apparatus (3).

3. energy-saving reverse osmosis water purifier according to claim 1 and 2, is characterized in that: in described dense water pipe (c1), be equipped with the second check valve (6) that only allows dense water to flow to the water main inlet port (43) of jet supercharger from described reverse osmosis membrane apparatus (3).

4. energy-saving reverse osmosis water purifier according to claim 1 and 2, it is characterized in that: discharge through the second road concentrated water discharge pipe (c2) from described concentrated water discharge pipe (c) dense water out, in the second described road concentrated water discharge pipe (c2), draining valve (8) is installed.