CN215798664U - Automatic neutralization system of regeneration waste liquid of one-level double-bed desalination system - Google Patents
Automatic neutralization system of regeneration waste liquid of one-level double-bed desalination system Download PDFInfo
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- CN215798664U CN215798664U CN202122379571.9U CN202122379571U CN215798664U CN 215798664 U CN215798664 U CN 215798664U CN 202122379571 U CN202122379571 U CN 202122379571U CN 215798664 U CN215798664 U CN 215798664U
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Abstract
The utility model provides an automatic regenerated waste liquid neutralizing system of a primary double-bed desalting system, which belongs to the technical field of chemistry and aims to solve the problem of insufficient safety of neutralizing operation of a neutralization wastewater pool in the traditional technical scheme, and comprises an acid discharge pump, an acid mist absorber and an alkali discharge pump, wherein the acid discharge pump is provided with two groups and communicated to two groups of acid storage tanks; after an outlet pipe of the acid storage tank is connected with the primary valve and the secondary valve, one path of the outlet pipe is connected into an acid metering tank for the anode bed and an acid metering tank for the mixed bed, and the other path of the acid storage tank is connected into a neutralization acid metering tank; one path of the outlet pipe of the alkali storage tank is connected with the primary valve and the secondary valve, and then is connected with the anion bed alkali metering box and the mixed bed alkali metering box, and the other path of the alkali storage tank is connected with the neutralization alkali metering box. The utility model is provided with the acid metering box for neutralization and the alkali metering box for neutralization, and the acid metering box for neutralization and the alkali metering box for neutralization are added, so that the operation of directly discharging valves of an acid storage tank and an alkali storage tank is avoided, and the operation safety is improved.
Description
Technical Field
The utility model belongs to the technical field of chemistry, and particularly relates to an automatic regenerated waste liquid neutralizing system of a primary double-bed desalting system.
Background
The water making process adopted by the existing gas-steam combined cycle unit is basically a mode of a raw water pretreatment system, a fiber filter, a primary double-bed desalting system and a mixed bed, and the regeneration of the system and the neutralization process of the generated waste liquid are characterized in that: the method comprises the following steps of (1) 5 non-top pressure countercurrent regeneration cation exchangers (cation beds) → 3 sets of carbon removers → 1 intermediate water tank → 5 non-top pressure countercurrent regeneration anion exchangers (anion beds) → 4 mixed ion exchangers (mixed beds), merging various drainage water of the cation beds, the anion beds and the mixed beds in the salt removal of the complex beds into a neutralization wastewater tank through channels, aerating the neutralization wastewater tank through an aeration system, sampling and testing the pH of the neutralization wastewater tank after water in the neutralization wastewater tank is fully neutralized and reacted, calculating the theoretical acid and alkali adding amount according to the pH, adding acid and alkali into the neutralization wastewater tank through a drain valve of an acid and alkali storage tank on the neutralization wastewater tank in operation, regulating the pH of the water in the neutralization wastewater tank to 6-9, and then discharging the water into a wastewater pipe network.
Based on the discovery of the prior art, the prior art has certain operability, but still has the following disadvantages: two neutralizing wastewater pools are provided, wherein two alkali storage tanks are arranged on the No. 1 neutralizing wastewater pool, two acid storage tanks are arranged on the No. 2 neutralizing wastewater pool, the four acid-alkali storage tanks are all arranged at high positions, a blow-down valve to be operated is positioned under the storage tanks, a blow-down pipeline is connected with the storage tanks through flanges, the leakage risk and the risk of falling on personnel during operation exist, and the safety of neutralizing operation of the neutralizing wastewater pool is insufficient; the practical acid-base storage tank is a magnetic turning plate type liquid level meter, meanwhile, the acid-base storage tank is large and is 20 cubic meters, the acid-base storage tank is horizontally arranged, and cylinders with two spherical stars at two ends bring great problems to acid-base metering, and a small amount of acid-base can greatly influence the pH of the wastewater due to the fact that the pH change of the wastewater during neutralization is exponential change between 4 and 10, so that the addition amount of the acid-base is easily insufficient or excessive, namely the neutralization amount of the acid-base is increased, the time required by acid-base neutralization is increased, and the metering mode of the acid-base during acid-base neutralization needs to be improved; the number of the neutralizing wastewater pools is two, wherein two alkali storage tanks are arranged on the number 1 neutralizing wastewater pool, two acid storage tanks are arranged on the number 2 neutralizing wastewater pool, the drain valves of the two alkali storage tanks are only communicated with the number 1 neutralizing wastewater pool, and the drain valves of the two acid storage tanks are only communicated with the number 2 neutralizing wastewater pool, so that the number 1 neutralizing wastewater pool can only add alkali, the number 2 neutralizing wastewater pool can only add acid, during operation, after excessive acid and alkali are added, the wastewater needs to be transferred to the rear part of the other neutralizing wastewater pool to continue neutralizing, and the problem that the two neutralizing wastewater pools can only add acid or only add alkali exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides an automatic neutralization system for regenerated waste liquid of a primary double-bed desalting system, which aims to solve the problem that the neutralization operation safety of a neutralization wastewater pool is insufficient in the traditional technical scheme; the metering mode of acid and alkali added during acid and alkali neutralization needs to be improved so as to improve the neutralization efficiency, reduce the time required by neutralization, and finally aim to reduce the dosage of acid and alkali, reduce the discharge amount of waste water and reduce the cost of desalted water production.
The utility model relates to a purpose and an effect of a primary double-bed desalting system regeneration waste liquid automatic neutralization system, which are achieved by the following specific technical means:
a one-stage double-bed desalting system regenerated waste liquid automatic neutralization system comprises an acid discharge pump, an acid mist absorber and an alkali discharge pump, wherein the acid discharge pump is provided with two groups and communicated to two groups of acid storage tanks; after an outlet pipe of the acid storage tank is connected with the primary valve and the secondary valve, one path of the outlet pipe is connected into the acid metering tank for the anode bed and the acid metering tank for the mixed bed, the other path of the acid storage tank is connected into the acid metering tank for neutralization, and finally the outlet pipe is connected into the neutralization tank through a pipeline; the alkali discharge pumps are provided with two groups and communicated to the two groups of alkali storage tanks; one path of the outlet pipe of the alkali storage tank is connected with the primary valve and the secondary valve, then is connected with the anion bed alkali metering tank and the mixed bed alkali metering tank, and the other path of the alkali storage tank is connected with the neutralization alkali metering tank and finally is connected with the neutralization tank through a pipeline; the neutralization ponds are provided with two groups, and each group of neutralization pond is provided with a neutralization pond drainage pump; and an online pH meter is additionally arranged at the outlet of each group of the drainage pump of the neutralization tank.
Further, the acid storage tank, the alkali storage tank, the acid metering box for the cation bed, the acid metering box for the mixed bed, the alkali metering box for the anion bed, the alkali metering box for the mixed bed and the acid metering box for the neutralization are all communicated with a reserved valve for flushing water.
Furthermore, the acid storage tank is also provided with an acid mist absorber communicated with the acid-base storage through a pipeline, industrial water or tap water is used for absorbing acid mist generated by the acid storage tank and the acid metering box for neutralization and introduced into the acid mist absorber in the acid mist absorber, the acid metering box for anode bed and the acid metering box for mixed bed are used for absorbing the generated acid mist by the acid mist absorber in the acid metering room, and the industrial water or tap water is used for absorbing the acid mist generated by the acid metering box for anode bed and the acid metering box for mixed bed and introduced into the acid mist absorber in the acid mist absorber.
Furthermore, the two groups of outlet pipelines of the neutralization tanks are communicated with each other and communicated to a whole waste water pipe network, one Roots blower for neutralization is shared by the two groups of neutralization tanks, and single-tank air intake or double-tank air intake is carried out by controlling respective air intake valves of the two groups of neutralization tanks.
Furthermore, a pipeline is led out from the acid storage tank outlet of the acid metering tank for neutralization to a main pipe of the acid metering tank for cation bed and the acid metering tank for mixed bed to serve as an acid inlet source, a pipeline is led out from a flushing water inlet pipeline of the acid storage tank to flush the acid metering tank for neutralization, and acid mist generated by the acid metering tank for neutralization is led to an acid mist absorber of the acid-base storage through a pipeline.
Furthermore, a pipeline is led out from the outlet of the alkali storage tank to the mother pipes of the alkali metering tank for the neutralization and the alkali metering tank for the anion bed and the alkali metering tank for the mixed bed to serve as an alkali inlet source, and a pipeline is led out from the water inlet pipeline of the alkali storage tank to flush the neutralization and alkali metering tank.
The utility model at least comprises the following beneficial effects:
1. the utility model is provided with the acid metering box for neutralization and the alkali metering box for neutralization, and the acid metering box for neutralization and the alkali metering box for neutralization are added, so that the operation of directly discharging valves of an acid storage tank and an alkali storage tank is avoided, and the operation safety is improved.
2. The acid metering tank for neutralization and the alkali metering tank for neutralization are arranged, so that acid and alkali cannot be quantitatively added when the blowdown valves of the acid storage tank and the alkali storage tank are operated, the use amount of the acid and the alkali cannot be controlled, and waste is easily caused. The acid metering box and the alkali metering box for neutralization have smaller volumes and are regular cylinders, and compared with an irregular acid storage tank and an irregular alkali storage tank, the acid and alkali usage amount can be conveniently calculated through respective liquid level changes of the acid metering box and the alkali metering box for neutralization, so that the method is more accurate and reduces the acid and alkali usage amount for neutralization.
3. According to the utility model, after the usage amount of acid and alkali for neutralization is set to be more accurate, the repeated acid and alkali addition caused by excessive acid and alkali addition is reduced, the required times for neutralization are reduced, the time required for neutralization in the neutralization tank is reduced, the neutralization efficiency in the neutralization tank is improved, the usage amount of acid and alkali for neutralization is reduced, the cost of acid and alkali for neutralization is saved, and the total production cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a water treatment regeneration system of the present invention.
Fig. 2 is a partial schematic view of a neutralization basin system of the present invention.
Fig. 3 is an enlarged view of a portion of fig. 1 a of the present invention.
Fig. 4 is an enlarged schematic view of the utility model at B in fig. 1.
Fig. 5 is an enlarged view of the structure of fig. 1 at C according to the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. an acid storage tank; 2. an alkali storage tank; 3. acid batch tank for cation bed; 4. an acid metering box for the mixed bed; 5. a burry bed alkali metering box; 6. a mixed bed alkali metering box; 7. a neutralization pond; 8. acid discharging pump; 9. an acid mist absorber; 10. an alkali discharging pump; 11. a neutralization pond drainage pump; 12. an acid metering box for neutralization; 13. a neutralization alkali metering box; 14. an on-line PH meter.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "two ends," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, and for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The first embodiment is as follows:
as shown in figures 1 to 5:
the utility model provides a regenerated waste liquid automatic neutralization system of a primary double-bed desalting system, which comprises an acid unloading pump 8, an acid mist absorber 9 and an alkali unloading pump 10, wherein the acid unloading pump 8 is provided with two groups and is communicated to two groups of acid storage tanks 1; after an outlet pipe of the acid storage tank 1 is connected with a primary valve and a secondary valve, one path of the outlet pipe is connected into an acid metering tank 3 for a cation bed and an acid metering tank 4 for a mixed bed, the other path of the acid storage tank 1 is connected into a neutralization acid metering tank 12, and finally the outlet pipe is connected into a neutralization tank 7 through a pipeline; the alkali discharge pumps 10 are provided with two groups and communicated to the two groups of alkali storage tanks 2; after an outlet pipe of the alkali storage tank 2 is connected with a primary valve and a secondary valve, one path is connected to the anion bed alkali metering tank 5 and the mixed bed alkali metering tank 6, the other path of the alkali storage tank 2 is connected to the neutralization alkali metering tank 13, and finally the other path is connected to the neutralization tank 7 through a pipeline; the neutralization ponds 7 are provided with two groups, and each group of neutralization ponds 7 is provided with a neutralization pond drainage pump 11; and an online pH meter 14 is additionally arranged at the outlet of each group of the neutralization pond drainage pump 11.
The main process is as follows: firstly, industrial hydrochloric acid is conveyed to an acid-base storage area through a tank car and conveyed to two high-position acid storage tanks 1 through two acid unloading pumps 8, outlets of the acid storage tanks 1 enter an acid metering box 3 for a positive bed and an acid metering box 4 for a mixed bed after passing through a primary valve and a secondary valve, then the acid metering box 3 for the positive bed and the acid metering box 4 for the mixed bed respectively enter the acid ejector and the mixed acid ejector by utilizing the Bernoulli principle (the fluid flow rate is larger, the pressure is lower) generated when desalted water flows into the acid ejector and the mixed acid ejector, and the acid is diluted to required times and then sent to the positive bed and the mixed bed by adjusting the opening degree of each acid outlet manual valve of the acid metering box 3 for the positive bed and the acid metering box 4 for the mixed bed; the outlet of the acid storage tank 1 passes through the primary valve and the secondary valve, and then the other path is connected to a neutralization acid metering box 12, and then acid can be added into the neutralization tank 7 through a pipeline. The acid storage tank 1, the acid metering tank 12 for neutralization, the acid metering tank 3 for cation bed and the acid metering tank 4 for mixed bed are all provided with reserved valves for feeding washing water for washing, and the washing water is industrial water. Meanwhile, a pipeline is led from the acid storage tank 1 to an acid-base storage acid mist absorber 9, industrial water or tap water is used for absorbing acid mist introduced into the acid mist absorber 9 from the acid storage tank 1 and an acid metering box 12 is used for neutralization in the acid mist absorber 9; the acid mist absorber 9 in the acid metering room absorbs the acid mist generated in the acid metering tank 3 for cation bed and the acid metering tank 4 for mixed bed, and the acid mist absorber 9 absorbs the acid mist generated in the acid metering tank 3 for cation bed and the acid metering tank 4 for mixed bed and introduced into the acid mist absorber 9 with industrial water or tap water.
Conveying the industrial liquid caustic soda to an acid-base reservoir area through a tank car, conveying the industrial liquid caustic soda to two high-position caustic storage tanks 2 through two caustic discharge pumps 10, enabling outlets of the caustic storage tanks 2 to enter an anion bed caustic metering box 5 and a mixed bed caustic metering box 6 after passing through a primary valve and a secondary valve, enabling the anion bed caustic metering box 5 and the mixed bed caustic metering box 6 to respectively enter an anion sprayer and a mixed chamber sprayer by utilizing a Bernoulli principle (the larger the fluid flow rate is, the lower the pressure is), and diluting the caustic soda to required multiples by adjusting the opening degree of respective caustic discharge hand valves of the anion bed caustic metering box 5 and the mixed bed caustic metering box 6 and then conveying the caustic soda to the anion bed and the mixed bed; the alkali storage tank 2, the anion bed alkali metering box 5 and the mixed bed alkali metering box 6 are provided with reserved valves for feeding flushing water to flush the alkali storage tank, wherein the flushing water is industrial water; the other path of the outlet of the alkali storage tank 2 passes through the primary valve and the secondary valve to the alkali metering tank 13 for neutralization, and then alkali can be added into the neutralization tank 7 through a pipeline.
The neutralization ponds 7 are divided into two groups, each group of neutralization ponds 7 is provided with a neutralization pond drainage pump 11, and outlet pipelines of the two groups of neutralization ponds 7 are communicated and can be communicated with a whole plant wastewater pipeline network; the two groups of neutralization tanks 7 share one Roots blower for neutralization, and single-tank air intake or double-tank air intake can be performed by controlling respective air intake valves of the two groups of neutralization tanks 7, so that the acid-base neutralization reaction of the neutralization tanks 7 is accelerated.
After the technical scheme is improved, a neutralization acid metering tank 12 and a neutralization alkali metering tank 13 are additionally arranged in the neutralization process, a pipeline is led out from an outlet of an acid storage tank 1 to a mother pipe of an acid metering tank 3 for a cation bed and an acid metering tank 4 for a mixed bed from the neutralization acid metering tank 12 to be used as an acid inlet source of the neutralization acid metering tank, a pipeline is led out from a flushing water inlet pipeline of the acid storage tank 1 to flush the neutralization acid metering tank 12, and acid mist generated by the neutralization acid metering tank 12 is led to an acid mist absorber 9 of an acid-alkali library through a pipeline; a pipeline is led out from an outlet of the alkali storage tank 2 to a mother pipe of the anion bed alkali metering tank 5 and the mixed bed alkali metering tank 6 by the neutralization alkali metering tank 13 to be used as an alkali inlet source, and a pipeline is led out from a flushing water inlet pipeline of the alkali storage tank 2 to flush the neutralization alkali metering tank 13; an online PH meter 14 is added at the outlets of the two groups of drainage pumps of the neutralization tank 7 for monitoring the PH of the neutralization tank 7 in real time; the acid metering box 12 for neutralization and the alkali metering box 13 for neutralization are respectively provided with two pipelines which are respectively led into the two groups of neutralization tanks 7, and the acid and alkali amount entering the neutralization tanks 7 is controlled by pneumatic valves.
The specific use mode and function of the embodiment are as follows:
the second half of the technical scheme is automatic neutralization of a neutralization wastewater pool, and required operation equipment comprises a Roots blower for neutralization, an acid metering box 12 for neutralization and an alkali metering box 13 for neutralization. (neutralization wastewater tank No. 1 in the attached drawings is taken as an example in the following)
The first step is as follows: and (3) confirming the state of a valve to be correct, aerating the No. 1 neutralization wastewater tank, starting the self-circulation of the No. 1 neutralization wastewater tank, and closing a water inlet valve of the No. 1 neutralization wastewater tank to isolate the water inlet valve so as to prevent water with unknown pH from entering to influence neutralization.
The second step is that: and (3) maintaining aeration and self-circulation of the No. 1 neutralization wastewater tank for 15 minutes, directly discharging according to an online pH meter 14 of the neutralization wastewater tank, if the online pH reading is between 6 and 9, calculating the amount of required acid and alkali according to the reading of the online pH meter 14 if the online pH reading is not between 6 and 9, automatically converting the amount of the required acid and alkali into the time for adding the acid and alkali into the No. 1 neutralization wastewater tank, and opening and closing an acid inlet or acid inlet pneumatic valve of the No. 1 neutralization wastewater tank according to the time.
The third step: and (3) maintaining the aeration self-circulation of the No. 1 neutralization wastewater pool for 15 minutes, directly discharging the wastewater according to the online pH meter 14 of the neutralization wastewater pool, if the online pH reading is between 6 and 9, calculating the required acid and alkali adding amount according to the reading of the online pH meter 14 if the online pH reading is not between 6 and 9, automatically converting the required acid and alkali adding time into the No. 1 neutralization wastewater pool, and opening and closing the acid inlet or acid inlet pneumatic valve of the No. 1 neutralization wastewater pool according to the required acid and alkali adding time.
The fourth step: maintaining the aeration self-circulation of the No. 1 neutralization wastewater pool for 15 minutes again, directly discharging the wastewater according to an online pH meter 14 of the neutralization wastewater pool if the online pH reading is between 6 and 9, and automatically neutralizing and failing if the online pH reading is not between 6 and 9, and continuing after finding reasons;
when the wastewater tank is neutralized by No. 1, an operator can enter the automatic neutralization step of the No. 1 neutralization wastewater tank by directly clicking the button of the No. 1 neutralization tank sequence control of the No. 1 neutralization wastewater tank. There are two on-line PH meters 14, and the average of the two is taken as the actual PH of the neutralization tank.
The utility model is not described in detail, but is well known to those skilled in the art.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (6)
1. The utility model provides an automatic neutralization system of one-level double bed desalination system regeneration waste liquid which characterized in that: the acid and alkali removing device comprises acid removing pumps (8), an acid mist absorber (9) and an alkali removing pump (10), wherein the acid removing pumps (8) are provided with two groups and communicated to two groups of acid storage tanks (1); after an outlet pipe of the acid storage tank (1) is connected with a primary valve and a secondary valve, one path of the outlet pipe is connected into an acid metering tank (3) for a cation bed and an acid metering tank (4) for a mixed bed, the other path of the acid storage tank (1) is connected into a neutralization acid metering tank (12), and finally is connected into a neutralization pond (7) through a pipeline; the alkali discharge pumps (10) are provided with two groups and communicated to the two groups of alkali storage tanks (2); after an outlet pipe of the alkali storage tank (2) is connected with the primary valve and the secondary valve, one path of the outlet pipe is connected into the anion bed alkali metering tank (5) and the mixed bed alkali metering tank (6), the other path of the alkali storage tank (2) is connected into the neutralization alkali metering tank (13), and finally is connected into the neutralization tank (7) through a pipeline; the neutralization ponds (7) are provided with two groups, and each group of neutralization pond (7) is provided with a neutralization pond drainage pump (11); and an online pH meter (14) is additionally arranged at the outlet of each group of the neutralization pond drainage pumps (11).
2. The automatic regenerated waste liquid neutralizing system of one-stage double-bed desalting system as claimed in claim 1, characterized in that the acid storage tank (1), the alkali storage tank (2), the acid metering tank (3) for cation bed, the acid metering tank (4) for mixed bed, the alkali metering tank (5) for anion bed, the alkali metering tank (6) for mixed bed and the acid metering tank (12) for neutralization are all communicated with a reserved valve for flushing water.
3. The automatic neutralization system for regenerated waste liquid of a one-stage multiple-bed desalting system according to claim 2, wherein the acid storage tank (1) is further provided with an acid mist absorber (9) connected to the acid-base storage through a pipeline, industrial water or tap water is used in the acid mist absorber (9) to absorb acid mist generated by the acid storage tank (1) and the neutralization acid metering tank (12) and introduced into the acid mist absorber (9), the acid metering tank (3) for anode bed and the acid metering tank (4) for mixed bed are used in the acid metering room to absorb acid mist generated by the acid mist absorber (9), and industrial water or tap water is used in the acid mist absorber (9) to absorb acid mist generated by the acid metering tank (3) for anode bed and the acid metering tank (4) for mixed bed and introduced into the acid mist absorber (9).
4. The automatic regenerated waste liquid neutralizing system for one-stage double-bed desalting system as claimed in claim 1, wherein two sets of outlet pipes of said neutralizing tank (7) are connected to each other and to the whole waste water pipe network, and one Roots blower for neutralization is shared by two sets of neutralizing tanks (7) and single-tank air intake or double-tank air intake is performed by controlling respective air intake valves of two sets of neutralizing tanks (7).
5. The automatic neutralization system of the regenerated waste liquid of the one-stage double-bed desalting system according to claim 1, characterized in that a pipeline is led out from the outlet of the acid storage tank (1) to the mother pipes of the acid metering tank (3) for the cation bed and the acid metering tank (4) for the mixed bed by the acid metering tank (12) for neutralization as the acid inlet source, and a pipeline is led out from the water inlet pipeline of the acid storage tank (1) for flushing the acid metering tank (12) for neutralization, and the acid mist generated by the acid metering tank (12) for neutralization is led to the acid mist absorber (9) of the acid-base storage through a pipeline.
6. The automatic neutralization system for the regenerated waste liquid of the one-stage double-bed desalting system according to claim 1, characterized in that a pipeline leading from the outlet of the alkali storage tank (2) to the mother pipes of the alkali metering tank (5) and the mixed-bed alkali metering tank (6) of the neutralization alkali metering tank (13) is used as an alkali inlet source, and a pipeline leading from the inlet flushing water pipeline of the alkali storage tank (2) is used for flushing the neutralization alkali metering tank (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122379571.9U CN215798664U (en) | 2021-09-29 | 2021-09-29 | Automatic neutralization system of regeneration waste liquid of one-level double-bed desalination system |
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| CN202122379571.9U CN215798664U (en) | 2021-09-29 | 2021-09-29 | Automatic neutralization system of regeneration waste liquid of one-level double-bed desalination system |
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