CN210030248U - Softened water treatment system - Google Patents
Softened water treatment system Download PDFInfo
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- CN210030248U CN210030248U CN201920600731.8U CN201920600731U CN210030248U CN 210030248 U CN210030248 U CN 210030248U CN 201920600731 U CN201920600731 U CN 201920600731U CN 210030248 U CN210030248 U CN 210030248U
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Abstract
The utility model relates to a softened water treatment system, which comprises a controller, a disc filter, an ion exchanger and a soft water tank which are connected in sequence, wherein the ion exchanger is connected with a back washing device which comprises a salt solution pool, a salt solution filter and a salt solution metering box which are connected in sequence; the softened water tank with all be provided with the level gauge in the salt solution batch meter, the level gauge is connected to the controller. The soft water treatment system has simple structure, can well prolong the service life of resin in the ion exchanger, and simultaneously well ensure the stable operation of the boiler, thereby bringing good economic benefit to enterprises.
Description
Technical Field
The invention relates to a water treatment system, in particular to a softened water treatment system.
Background
Industrial water often contains a lot of refractory substances and silt, brings a lot of harm to subsequent softening treatment of industrial water, and simultaneously has certain threat to safe and stable operation of a boiler. In order to make the stock management of soft water well, the public engineering technical personnel carry out analysis according to the problem that the service life of the resin of the ion exchanger is short commonly existing in the industry, and the result is that the resin is damaged irreparably in the water softening treatment process because the industrial water contains silt. The steam boiler has certain requirements on the quality of the produced steam, and the steam boiler needs to ensure the quality of the steam and minimize the harm to equipment, so that water needs to be softened with high quality and then enters the boiler for use.
SUMMERY OF THE UTILITY MODEL
The invention provides a softened water treatment system in order to improve the quality of soft water and reduce the damage to a boiler, the softened water treatment system has a simple structure, the service life of resin in an ion exchanger can be well prolonged, the stable operation of the boiler is well ensured, and good economic benefits are brought to enterprises.
The technical scheme adopted by the invention is as follows: a softened water treatment system comprises a controller, a disc filter, an ion exchanger and a soft water tank which are sequentially connected, wherein the disc filter is connected with a water source through a first pipeline, the disc filter is connected with the ion exchanger through a second pipeline, the ion exchanger is connected with the soft water tank through a third pipeline, the ion exchanger is connected with a back washing device, the back washing device comprises a salt solution pool, a salt solution filter and a salt solution metering tank which are sequentially connected, the salt solution pool is connected with the salt solution filter through a fourth pipeline, the salt solution filter is connected with the salt solution metering tank through a fifth pipeline, the salt solution metering tank is connected with the ion exchanger through a sixth pipeline, and water in the salt solution pool sequentially passes through the salt solution filter and the salt solution metering tank to enter the ion exchanger; the water softening tank and the salt solution metering tank are internally provided with liquid level meters, and the controller is connected with the electromagnetic valve, the first liquid flow meter and the liquid level meters.
Furthermore, electromagnetic valves are arranged on the first pipeline, the second pipeline, the third pipeline, the fourth pipeline, the fifth pipeline and the sixth pipeline, and the electromagnetic valves are connected with the controller.
Furthermore, a flow transmitter for detecting the water outlet flow of the ion exchanger is arranged on the ion exchanger.
Furthermore, a second liquid flow meter for detecting the filtering capacity of the salt liquid filter is arranged on the fourth pipeline.
Furthermore, the two disc filters are respectively a first disc filter and a second disc filter, the first disc filter is connected with the water source through an electromagnetic valve a, the second disc filter is connected with the water source through an electromagnetic valve b, and at least one of the electromagnetic valve a and the electromagnetic valve b is in a closed state.
Further, the controller is a Siemens S7-300 series PLC controller.
Further, the controller is connected with an MP377 touch screen for human-computer interaction, and the MP377 touch screen is connected with the controller through an MPI connector.
Furthermore, the controller is connected with an alarm device, and the controller turns on or off the alarm device according to a signal transmitted by the liquid level meter.
Furthermore, the ion exchanger is provided with two groups, each group comprises two groups, and each group corresponds to one salt solution metering box.
The beneficial effects produced by the invention comprise: the disc filter is arranged in front of the ion exchanger, so that silt in water can be filtered out, the damage of large-particle impurities to resin in the ion exchanger is reduced, the service lives of the resin and a boiler are prolonged, the times of maintenance and repair are effectively reduced, a key effect is played on good and stable operation of enterprise equipment, stable operation of the whole plant equipment is ensured to the maximum extent, and good economic benefit and social benefit are brought to enterprises; the ion exchanger is connected with a back washing device which can wash the resin in the ion exchanger at regular time, thereby ensuring the use effect and the service life of the resin; the controller is connected with the electromagnetic valve on the pipeline, so that the pipeline can be automatically and orderly opened and closed; the first liquid flowmeter and the second liquid flowmeter can monitor the filtered water amount of the disc filter and the salt liquid filter so as to judge whether the filter element needs to be replaced and ensure the filtering effect; according to the invention, the level meters are arranged in the soft water tank and the salt solution metering tank, so that the liquid amount in the device can be monitored in real time to control the opening and closing of the electromagnetic valve, and the liquid is prevented from overflowing or being too low in liquid level. The invention is provided with a flow transmitter for detecting the water outlet flow of the ion exchanger on the ion exchanger to monitor whether the resin in the ion exchanger is blocked or not so as to wash in time; the invention is provided with two disc filters, and the two disc filters can be alternately used at regular time, thereby ensuring the filtering effect.
Drawings
FIG. 1 is a schematic view showing a connection structure of a soft water treatment system according to the present invention;
FIG. 2 is a schematic view showing the construction of a soft water treatment system according to the present invention;
FIG. 1 illustrates a disc filter; 2. a salt solution metering box; 3. a salt solution filter; 4. a salt solution pool; 5. a saline pump; 6. an ion exchanger; 7. a soft water tank.
Detailed Description
The present invention is explained in further detail below with reference to the drawings and the specific embodiments, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
As shown in FIGS. 1 to 2, the soft water treatment system of the present invention comprises a disc filter 1, an ion exchanger 6 and a soft water tank 7 connected in series, the disc filter 1 being connected to a water source through a first pipe and the ion exchanger 6 through a second pipe, and being separated from the first pipeSub-exchanger 6 passes through third pipe connection softened water tank 7, and water in the water source passes through water pump and first pipeline and gets into disc filter 1, filters insoluble matters such as silt and other large granule impurity that exist in the aquatic in this disc filter 1, and water rethread second pipeline after the preliminary treatment gets into ion exchanger 6, has exchange resin in the ion exchanger 6, and hardness ion Ca that water can get rid of after ion exchanger 6 is crossed to water2+、Mg2+The ion exchanger 6 operates on the principle that Ca in tap water containing hardness ions passes through the resin layer of the exchanger2+、Mg2+Na adsorbed by resin+Replacement occurs and Ca is adsorbed on the resin2+、Mg2+And Na+Into the water so that the water exiting the exchanger is demineralized. The water pump is connected behind the ion exchanger 6, and the water softened by the ion exchanger 6 is pumped into the soft water tank 7 through the water pump and the third pipeline for storage.
In order to ensure the repeated use of the resin in the ion exchanger 6, the ion exchanger 6 is connected with a back flushing device, and the purpose of back flushing is to recover the exchange capacity of the resin in the ion exchanger 6. The back flush device is including salt solution pond 4, salt solution filter 3 and the salt solution batch meter 2 that connect gradually, and salt solution pond 4 is through fourth pipe connection salt solution filter 3, and salt solution filter 3 is through fifth pipe connection salt solution batch meter 2, and salt solution batch meter 2 is through sixth pipe connection ion exchanger 6, and the course of work is: firstly, the brine in the brine pool 4 is pumped into the brine filter 3 by the brine pump 5 to filter silt and insoluble substances, the brine with impurities removed is conveyed into the brine metering box 2 to be stored, and when the ion exchanger 6 needs to be backwashed, the brine in the brine metering box 2 is pumped into the ion exchanger 6 to replace the impurities in the resin layer, so that the exchange capacity of the resin is recovered.
The system belongs to an automatic control system and is provided with a controller, each pipeline is provided with an electromagnetic valve for controlling the opening and closing of a channel, the first pipeline is also provided with a first liquid flow meter for detecting the amount of water filtered by a disc filter 1, the fourth pipeline is provided with a second liquid flow meter for detecting the filtering amount of a salt liquid filter 3, liquid level meters are arranged in a soft water tank 7 and a salt liquid metering tank 2, an ion exchanger 6 is provided with a flow transmitter for detecting the water outlet flow of the ion exchanger 6, and the controller is connected with the electromagnetic valve, the first liquid flow meter, the second liquid flow meter, the flow transmitter and the liquid level meter. The controller is also connected with an alarm device, when the first liquid flowmeter detects that the flow rate exceeds a set value, the controller closes the electromagnetic valve on the first pipeline, when the second liquid flowmeter detects that the flow rate exceeds the set value, the controller closes the electromagnetic valve on the fourth pipeline, when the flow rate transmitter detects that the flow rate exceeds the set value, namely the exchange capacity of the ion exchanger 6 is weakened, the ion exchanger 6 needs to be backwashed, namely the electromagnetic valves in the fourth pipeline, the fifth pipeline and the sixth pipeline in the backwashing device are controlled to be opened. When the level gauge detects the liquid level in the softened water tank 7 when too high, with information transfer to controller, the first pipeline of controller control, the battery valve in second pipeline and the third pipeline is closed, the corresponding water pump of simultaneous control is closed, stop to the water injection in the softened water tank 7, when the level gauge detects the interior liquid level of softened water tank 7 and crosses lowly, with information transfer to controller, the first pipeline of controller control, the battery valve in second pipeline and the third pipeline is opened, the corresponding water pump of simultaneous control is opened, inject water to setting for the water level in the softened water tank 7. When the level gauge detects the liquid level when too high in salt liquid metering box 2, with information transfer to controller, controller control fourth pipeline, the battery valve in fifth pipeline and the sixth pipeline is closed, the corresponding water pump of simultaneous control is closed, stop to the water injection in the salt liquid metering box 2, when the level gauge detects that the liquid level is crossed lowly in the salt liquid metering box 2, with information transfer to controller, controller control fourth pipeline, the battery valve in fifth pipeline and the sixth pipeline is opened, the corresponding water pump of simultaneous control is opened, inject water to setting for the water level in salt liquid metering box 2. The ion exchanger 6 in the present invention is a fully automatic ion exchanger 6.
Because the filter element in the disc filter 1 is replaced frequently, in order to ensure the supply of soft water, the disc filter 1 is provided with two discs 1 which are respectively a first disc filter 1 and a second disc filter 1, the first disc filter 1 is connected with the water source through an a electromagnetic valve, the second disc filter 1 is connected with the water source through a b electromagnetic valve, the filtered water volume connected with the first disc filter 1 exceeds a set value, the controller controls to close the a electromagnetic valve, the b electromagnetic valve is opened at the same time, and when the filtered water volume of the second disc filter 1 exceeds the set value, the controller closes the b electromagnetic valve and opens the a electromagnetic valve at the same time.
The utility model discloses a controller is Siemens company S7-300 series PLC controller, and human-computer interface adopts Siemens company MP377 touch-sensitive screen for system 'S running state' S control adopts MPI to connect and be connected with the controller. Program control for automatic operation of the system. The controller is provided with a PROFIBUS-DP communication interface for realizing the response and processing of various control commands with a user upper computer, and the control systems are connected by adopting a TCP/IP protocol. A CP343-1 series and a communication speed 10M/100M self-adaptive network card are adopted, and an RJ45 interface is configured; a communication bus.
The controller controls the action of the electromagnetic valves, simultaneously acquires feedback signals of all the control electromagnetic valves, and displays the working states of all the valves and the running states of the soft water processor (including parameters such as the cumulative amount of water production flow of the ion exchanger, the liquid level of the salt type metering tank, the soft water outlet pressure, the cumulative amount of water outlet of the salt filter, the liquid level of the soft water tank 7 and the like) on the upper computer in real time through the PLC controller by the communication module to realize detection and alarm in the treatment process, wherein the soft water outlet pressure refers to the pressure of the water outlet of the ion exchanger and is detected by the pressure sensor arranged at the water outlet.
The ion exchanger 6 is provided with two first ion exchanger 6 and second ion exchanger 6, when the water outlet flow of the first ion exchanger 6 reaches a set value, the controller controls the corresponding electromagnetic valve to be closed, and simultaneously opens the electromagnetic valve connected with the second ion exchanger 6, the water outlet flow of the ion exchanger 6 is obtained through a flow transmitter, and the flow transmitter is connected with the controller.
The soft water treatment system adopts two control modes of time and flow or according to effluent water quality detection:
a. flow control: when the water outlet flow of one exchanger reaches a set value, the standby ion exchanger 6 is put into operation, the failed exchanger automatically enters a regeneration program according to the programs of backwashing, salt inlet regeneration, replacement and forward washing according to a set time program, and the standby ion exchanger is used after the forward washing is finished.
b. And (3) time control program: the operation of the ion exchanger 6 is operated according to a set time program through a time relay, when a flowmeter of the ion exchanger 6 breaks down, the accumulated flow is calculated and converted into a time accumulated value through a PLC, the flow control mode is converted into a time control operation mode, and the exchanger continues to produce water and operates uninterruptedly.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the content of the embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and any changes and modifications made are within the protective scope of the present invention.
Claims (9)
1. A softened water treatment system characterized by: the device comprises a controller, a disc filter, an ion exchanger and a soft water tank which are sequentially connected, wherein the disc filter is connected with a water source through a first pipeline and is connected with the ion exchanger through a second pipeline, the ion exchanger is connected with the soft water tank through a third pipeline, the ion exchanger is connected with a back washing device, the back washing device comprises a salt solution pool, a salt solution filter and a salt solution metering tank which are sequentially connected, the salt solution pool is connected with the salt solution filter through a fourth pipeline, the salt solution filter is connected with the salt solution metering tank through a fifth pipeline, the salt solution metering tank is connected with the ion exchanger through a sixth pipeline, and water in the salt solution pool sequentially enters the ion exchanger through the salt solution filter and the salt solution metering tank; the water softening tank and the salt solution metering tank are internally provided with liquid level meters, and the controller is connected with the electromagnetic valve, the first liquid flow meter and the liquid level meters.
2. The softened water treatment system of claim 1, wherein: and the first pipeline, the second pipeline, the third pipeline, the fourth pipeline, the fifth pipeline and the sixth pipeline are all provided with electromagnetic valves, and the electromagnetic valves are all connected with the controller.
3. The softened water treatment system of claim 1, wherein: and the ion exchanger is provided with a flow transmitter for detecting the water outlet flow of the ion exchanger.
4. The softened water treatment system of claim 1, wherein: and a second liquid flow meter for detecting the filtering capacity of the salt liquid filter is arranged on the fourth pipeline.
5. The softened water treatment system of claim 1, wherein: the disc filters are respectively a first disc filter and a second disc filter, the first disc filter is connected with the water source through an electromagnetic valve a, the second disc filter is connected with the water source through an electromagnetic valve b, and at least one of the electromagnetic valve a and the electromagnetic valve b is in a closed state.
6. The softened water treatment system of claim 1, wherein: the controller is a Siemens S7-300 series PLC controller.
7. The softened water treatment system of claim 1, wherein: the controller is connected with an MP377 touch screen for human-computer interaction, and the MP377 touch screen is connected with the controller by an MPI connector.
8. The softened water treatment system of claim 1, wherein: the controller is connected with an alarm device, and the controller turns on and off the alarm device according to the signal transmitted by the liquid level meter.
9. The softened water treatment system of claim 1, wherein: the ion exchanger is provided with two groups, each group comprises two groups, and each group corresponds to one salt solution metering box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920600731.8U CN210030248U (en) | 2019-04-29 | 2019-04-29 | Softened water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920600731.8U CN210030248U (en) | 2019-04-29 | 2019-04-29 | Softened water treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN210030248U true CN210030248U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920600731.8U Active CN210030248U (en) | 2019-04-29 | 2019-04-29 | Softened water treatment system |
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| Country | Link |
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| CN (1) | CN210030248U (en) |
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- 2019-04-29 CN CN201920600731.8U patent/CN210030248U/en active Active
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