CN211310959U

CN211310959U - High-pressure release device for reverse osmosis equipment

Info

Publication number: CN211310959U
Application number: CN201922296238.4U
Authority: CN
Inventors: 施晖
Original assignee: Wuxi Meijing Water Treatment Equipment Co ltd
Current assignee: Wuxi Meijing Water Treatment Equipment Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-21
Anticipated expiration: 2029-12-19

Abstract

The utility model relates to the technical field of reverse osmosis equipment, in particular to a high-pressure release device for reverse osmosis equipment, which comprises a raw water tank, a high-pressure pump and a reverse osmosis host which are arranged in sequence, wherein the raw water tank is communicated with the high-pressure pump through a water inlet pipe, the high-pressure pump is communicated with the reverse osmosis host through a water outlet pipe, the water inlet valve is arranged on the water inlet pipe, a water outlet valve is arranged on the water outlet pipe, and the output end of the reverse osmosis host divides concentrated water and clean; a return pipe is connected between the raw water tank and the water outlet pipe, a water storage tank is arranged on the return pipe, the return pipe is divided into two sections by the water storage tank, a first valve is further mounted on one section of the return pipe between the water outlet pipe and the water storage tank, a water pressure sensor is arranged in the water outlet pipe, and a signal output end of the water pressure sensor is electrically connected to the first valve through a first controller. The utility model discloses a water pressure value that water pressure sensor sensed controls opening and close of first valve, avoids the pressure differential of reverse osmosis membrane both sides too big, realizes the effect of timely pressure release.

Description

High-pressure release device for reverse osmosis equipment

Technical Field

The utility model relates to a reverse osmosis equipment technical field specifically is a be used for reverse osmosis equipment high pressure release.

Background

The reverse osmosis equipment is characterized in that raw water passes through a fine filter, a granular activated carbon filter, a compressed activated carbon filter and the like, is pressurized through a pump, and utilizes a reverse osmosis membrane (RO membrane) with the pore diameter of 1/10000 mu m (equivalent to 1/6000 of the size of escherichia coli and 1/300 of viruses) to change water with higher concentration into water with low concentration, and simultaneously, impurities mixed into water in large quantities such as industrial pollutants, heavy metals, bacteria, viruses and the like are completely isolated, so that the physical and chemical indexes and the sanitary standard specified for drinking are achieved, and the clean water is produced.

In the prior art, when raw water is conveyed to a reverse osmosis host machine after being pressurized, pressure difference is generated on two sides of a reverse osmosis membrane, when water pressure is too large, large pressure is generated on the reverse osmosis membrane, and when the water pressure is too small, the pressure difference on the two sides cannot be guaranteed to be enough for water molecules to pass through, so that the water pressure on the two sides needs to be kept in a proper pressure difference range. For this reason, we propose a high pressure release device for reverse osmosis plants to solve the above drawbacks well.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for reverse osmosis equipment high pressure release to solve the problem that proposes among the above-mentioned background art.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a high-pressure release device for reverse osmosis equipment comprises a raw water tank, a high-pressure pump and a reverse osmosis host which are sequentially arranged, wherein the output end of the raw water tank is communicated with the input end of the high-pressure pump through a water inlet pipe, the output end of the high-pressure pump is communicated with the input end of the reverse osmosis host through a water outlet pipe, a water inlet valve is arranged on the water inlet pipe, a water outlet valve is arranged on the water outlet pipe, and the output end of the reverse osmosis host divides concentrated water and clean water; the water storage tank is characterized in that a return pipe is connected between the input end of the raw water tank and the water outlet pipe, a water storage tank is arranged on the return pipe, the return pipe is divided into two sections by the water storage tank, a first valve is further mounted on one section of the return pipe located between the water outlet pipe and the water storage tank, a water pressure sensor is arranged in the water outlet pipe, and the signal output end of the water pressure sensor is electrically connected to the first valve through a first controller.

Preferably, the tail end of the return pipe can be connected to the water inlet pipe, and a section of the return pipe between the water storage tank and the water inlet pipe is provided with a second valve.

Preferably, the outer wall of the water storage tank is adhered with a non-contact liquid level sensor by the top end, and the signal output end of the non-contact liquid level sensor is electrically connected to the second valve through a second controller.

Preferably, the low pressure threshold set by the first controller exceeds the water pressure on the other side of the reverse osmosis membrane in the reverse osmosis main machine.

Preferably, the first valve, the water pressure sensor, the first controller, the non-contact liquid level sensor, the second controller and the second valve are all electrically connected with an external power supply.

Compared with the prior art, the utility model provides a be used for reverse osmosis equipment high pressure release device possesses following beneficial effect:

1. the opening and closing of the first valve are controlled through the water pressure value sensed by the water pressure sensor, so that the phenomenon that the pressure difference between two sides of the reverse osmosis membrane is too large is avoided, and the effect of timely pressure relief is realized;

2. the opening and closing of the second valve are controlled by the liquid level sensed by the non-contact liquid level sensor, so that the situation that too much raw water exists in the water storage tank and no space is available for containing the discharged water during pressure relief is avoided.

Drawings

Fig. 1 is a schematic view of a first installation structure of the present invention;

fig. 2 is a circuit connection block diagram of the water pressure sensor and the first valve according to the present invention;

FIG. 3 is a schematic view of a second mounting structure of the present invention;

fig. 4 is a circuit connection block diagram of the non-contact liquid level sensor and the second valve of the present invention.

In the figure: 1. a raw water tank; 2. a high pressure pump; 3. a reverse osmosis host; 4. a water inlet pipe; 5. a water inlet valve; 6. a water outlet pipe; 7. a water outlet valve; 8. a return pipe; 9. a water storage tank; 10. a first valve; 11. a water pressure sensor; 12. a first controller; 13. a non-contact liquid level sensor; 14. a second controller; 15. a second valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1 and fig. 2, the present invention provides a technical solution: a high-pressure release device for reverse osmosis equipment comprises a raw water tank 1, a high-pressure pump 2 and a reverse osmosis host 3 which are sequentially arranged, wherein the output end of the raw water tank 1 is communicated with the input end of the high-pressure pump 2 through a water inlet pipe 4, the output end of the high-pressure pump 2 is communicated with the input end of the reverse osmosis host 3 through a water outlet pipe 6, a water inlet valve 5 is arranged on the water inlet pipe 4, a water outlet valve 7 is arranged on the water outlet pipe 6, and the output end of the reverse osmosis host 3 divides concentrated water and clean; a return pipe 8 is connected between the input end of the raw water tank 1 and the water outlet pipe 6, a water storage tank 9 is arranged on the return pipe 8, the return pipe 8 is divided into two sections by the water storage tank 9, a first valve 10 is further installed on one section of the return pipe 8 positioned between the water outlet pipe 6 and the water storage tank 9, a water pressure sensor 11 is arranged in the water outlet pipe 6, and the signal output end of the water pressure sensor 11 is electrically connected to the first valve 10 through a first controller 12;

the first controller 12 comprises a threshold adjusting module and a comparison module, wherein the threshold adjusting module is used for adjusting the water pressure threshold, and the comparison module and the threshold adjusting module are electrically connected with the water pressure sensor 11 and are used for receiving the water pressure threshold and the water pressure signal and performing comparison response. The first controller 12 can select an STC89C51RC single chip microcomputer as a control core, and is matched with the water pressure sensor 11 and the A/D analog-to-digital conversion chip HX711 to realize data acquisition of water pressure in the water outlet pipe 6;

when the water pressure sensor 11 senses that the water pressure exceeds a set high-pressure threshold value, the first controller 12 controls the first valve 10 to be opened, when the water pressure sensed by the water pressure sensor 11 is lower than a set low-pressure threshold value, the first controller 12 controls the first valve 10 to be closed, and the low-pressure threshold value exceeds the water pressure on the other side of the reverse osmosis membrane.

Example 2: please refer to the reverse osmosis host 3 and the water inlet pipe 4 in the drawings, the connection relationship between other structures is kept unchanged, the end of the return pipe 8 is connected to the water inlet pipe 4, a second valve 15 is installed on a section of the return pipe 8 between the water storage tank 9 and the water inlet pipe 4, the sensing probe of the non-contact liquid level sensor 13 is glued on the outer wall of the water storage tank 9 near the top end (high liquid level), the signal output end of the non-contact liquid level sensor 13 is electrically connected to the second valve 15 through a second controller 14, when the non-contact liquid level sensor 13 senses that the liquid level in the water storage tank 9 exceeds the high liquid level, the second controller 14 controls the second valve 15 to be opened, the water in the water storage tank 9 flows back into the water inlet pipe 4 through the return pipe 8, and when the liquid level in the water storage tank 9 sensed by the non-contact liquid level; the first valve 10, the water pressure sensor 11, the first controller 12, the non-contact liquid level sensor 13, the second controller 14 and the second valve 15 are all electrically connected with an external power supply.

The working principle is as follows: water in the raw water tank 1 is pumped into a reverse osmosis host 3 through a water inlet pipe 4 and a water outlet pipe 6 under the action of a high-pressure pump 2, water molecules pass through the reverse osmosis membrane by the pressure difference on two sides of the reverse osmosis membrane, so that water with higher concentration is changed into water with low concentration, simultaneously, a large amount of impurities mixed into the water, such as industrial pollutants, heavy metals, bacteria, viruses and the like, are completely isolated, and the concentrated water and clean water are respectively discharged from two output ends; when the water pressure sensor 11 senses that the water pressure in the water outlet pipe 6 exceeds a set high-pressure threshold value, the first controller 12 controls the first valve 10 to be opened, water flows back into the water storage tank 9 through the return pipe 8 to release the water pressure in the water pipe 6, and when the water pressure sensed by the water pressure sensor 11 is lower than a set low-pressure threshold value, the first valve 10 is controlled to be closed by the first controller 12; the water storage tank 9 is used for storing pressure-relief discharged water, and when the non-contact liquid level sensor 13 senses that the water in the water storage tank 9 exceeds a high liquid level, the second controller 14 controls the second valve 15 to open, so that the water is discharged to the water inlet pipe 4 to be mixed with the water in the water inlet pipe 4 and flows to the high-pressure pump 2 again.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-pressure release device for reverse osmosis equipment comprises a raw water tank (1), a high-pressure pump (2) and a reverse osmosis host (3) which are sequentially arranged, wherein the output end of the raw water tank (1) is communicated with the input end of the high-pressure pump (2) through a water inlet pipe (4), the output end of the high-pressure pump (2) is communicated with the input end of the reverse osmosis host (3) through a water outlet pipe (6), a water inlet valve (5) is arranged on the water inlet pipe (4), a water outlet valve (7) is arranged on the water outlet pipe (6), and the output end of the reverse osmosis host (3) is divided into concentrated water and clean water; the method is characterized in that: be connected with back flow (8) between the input of former water tank (1) and outlet pipe (6), and be provided with storage water tank (9) on back flow (8), storage water tank (9) divide into two sections with back flow (8), and still install first valve (10) on being located one section back flow (8) between outlet pipe (6) and storage water tank (9), be provided with water pressure sensor (11) in outlet pipe (6), the signal output part of water pressure sensor (11) is connected to first valve (10) through first controller (12) electricity.

2. A high pressure relief device for a reverse osmosis plant according to claim 1, wherein: the tail end of the return pipe (8) can be connected to the water inlet pipe (4), and a second valve (15) is arranged on one section of the return pipe (8) between the water storage tank (9) and the water inlet pipe (4).

3. A high pressure relief device for a reverse osmosis plant according to claim 2, wherein: the outer wall of the water storage tank (9) is adhered with a non-contact liquid level sensor (13) by the top end, and the signal output end of the non-contact liquid level sensor (13) is electrically connected to a second valve (15) through a second controller (14).

4. A high pressure relief device for a reverse osmosis plant according to claim 1, wherein: the low-pressure threshold value set by the first controller (12) exceeds the water pressure of the other side of the reverse osmosis membrane in the reverse osmosis host (3).

5. A high pressure relief device for a reverse osmosis plant according to claim 3, wherein: the first valve (10), the water pressure sensor (11), the first controller (12), the non-contact liquid level sensor (13), the second controller (14) and the second valve (15) are all electrically connected with an external power supply.