JPS5973092A - Apparatus for manufacture of demineralized water - Google Patents

Abstract

PURPOSE:To manufacture demineralized water of desired purity with excellent reliability, by providing a means for measuring the purity of each output water from each unit for manufacturing demineralized water, a means for returning said output water to an outputted unit for manufacturing demineralized water, etc. CONSTITUTION:From raw water (a) supplied by the operation of a supply pump 19, demineralized water is obtained by three-stage treatment with the first, second and third units 3, 5, 7 for manufacturing demineralized water. That is, a microcomputer 9 compares the result of purity measured by the first, second and third conductometers 11, 13, 15 provided in the passageways of output water from each unit 3, 5, 7 for manufacturing demineralized water with predetermined purity preset by a setting instrument 17, and controls a pump 19 for supplying demineralized water, the first electromagnetic valve 21 for switching the drainage (b) of output water from the first unit 3 for manufacturing demineralized water, the second electromagnetic valve 23 for controlling the circulating current of treated water to the third unit 7 for manufacturing demineralized water, a reflux motor 25 and an alarm device 27 for abnormality.

Description

[Detailed description of the invention]

The present invention relates to a pure water production apparatus that improves the reliability of produced pure water. In general, the methods for obtaining pure water differ depending on the person: distillation,
There are two methods: ion exchange method and reverse osmosis method. The distillation method involves heating raw water to bring it to a boil, and then cooling the generated air. This is a method of condensing pure water to 11%. The ion exchange method involves passing raw water through an ion exchange resin to remove dissolved ions. 'cI゛l'-J△11114
(・) 4 rivers C raw water is filtered at molecular level C to make pure water 11
There is a method ゛C. ,? , E East's pure water manufacturer 'IL % The pure water manufacturer's IL % location is the method of processing the raw water by one of the three methods mentioned above. I + j, (; ?, equipment (this is the purity of the finally produced pure water) is judged by electrical conductivity, and the result of the judgment is -J.
If the amount of water is low, the pure water should be used as waste water (waste 1, 1, bow 4), raw water treatment process (good, war damage).
1 or use 1 [a pure water production unit that exceeds the limit] - JSA case (2) there is no way to detect this
Therefore, I:+l:L (instead, it is possible to take measures to replace it with So1, so please discard it; Continued - (:'
As a result, it is possible to improve the reliability of pure water with the desired purity.This invention was made in view of the above, therefore, - this 1] target is the desired test (T (f i λ pure water? I', then
l[j To provide a water burying device (,-Achieving the purpose of 1゜1)

[In order to reduce the amount of raw water, this invention
Purity production of pure water - 1 - Processing and manufacturing of pure water (32 units (, each pure water production unit l-/J+ + each unit/() purity measuring device When the purity measurement result exceeds a predetermined value, the purified water produced by processing the output water is returned to the QHJ knit, and the output water is refluxed. is a certain period of time 11
J: A drive control device is installed to stop the production of pure water due to continuous operation. The following is a summary of how the purity of water is determined. Below is a detailed explanation of this invention using drawings. Figure 1 shows an embodiment of this invention. 1 indicates a pure water production device, and the pure water production device 1 is a distillation method,
The system is configured to treat raw water using one of the following methods: ∆an exchange method or reverse osmosis method.
Pure water production unit j-3゜5.7J, water supply tank f]9) is driven by water supply tank f]9): Pure water is produced from raw water Rirshino-(゛, Mark L'l-I Invinota 9 J, nc'I'i made; Δ'I-culm h' is controlled (14 formations.
''Pita 9 is manufactured by each pure water manufacturer, '31.7
The first waterway was built on the Nodetsuno Channel. Second. third electricity 1
ノ,）9瓜泪11, 13.15J、 ro 1: The measurement results of the 19. 1st
First solenoid valve 21 for switching the output/J water to the pure water m unit 1 3. Tokubu 4th 3rd rensui production unit 1
The second solenoid valve 23 it3 controls the flow to -7.
．． J: controls the abnormality notification device 27. Next, the pure water 11"°1 I culm J
As shown in Fig. 2, the fI is shown in Figure 2.
Processing steps of the central processing unit ff1 (CPU) l-, 1-1
-11,',-) is explained. In general, raw water and water are used as analogies (, [water supply is”) fj
However, immediately after the start of water supply, there may be various impurities in the water pipe or raw water. It is impossible to produce pure water.Therefore, C
PU first performs ``minute queen after relet (step 10)''.
0), the purity of the treated water supplied by the 1jξ supply pump 19 by the first pure water unit 1-3 is determined by the purity of the treated water from the 1st electric 1 mj I quality: + 1-1 (step 110), compare the measurement result (Ul) with the preset purity (Ux) in the step 120, and if it is 01 °C]χ, proceed to the next step. −
-C51゛: U y, (If there is, it is determined that it is impossible to produce pure water and the process proceeds to step 130 where the treated water is accepted by 111. In step 130, the '1st solenoid valve 21 is ) 1 Cut to the water side (■ E (Proceed to Sluts 1140.
J, sea urchin, as the raw water mixed with impure water in the water supply 1'8 is C' of II water supply stage 1l-IF2, if IJL /J[or ij'cL is used, the
It is thought that the pure water production unit 3 was damaged. Step 140.
Ha, ('11N1 (, ;, When the water starts draining, start driving the fins for T minutes (for example, 5), and the JJI water is dark blue for -F minutes; continued/, = thing 4-test 7.11 L, <, In addition to stopping the +1 supply pump 19, the alarm device 27 notifies the necessity of replacing the first pure water production unit 1 and stops the driving part of the pure water production device 1 (Sunono-F280 ).On the other hand, CI)IJ switches the first solenoid valve 21 to the water supply side at ?J+ and UX conversion, and then is supplied to the second pure water production unit !5 for processing. The thread thickness of the output water is 02 and the second electricity is 1 yen) 9 degrees lll 13
5 and sell it to the second pure water production unit 5.
Purity before burial U1 is compared to find the relative purity 1 (Shinomukai' - Maro ((]2, ·'01) (Step 10
5・IF〕0). Sosite, c p u +,, t, the direction -11, q (
? , ) 2 "" (J + ) 'a Compare with the preset first reconnaissance U r -(, ((So2-01)゛・Ul
・(If there is, it is determined that the second pure water production J-Soto 5 is damaged or the processing capacity has decreased. [Proceed to Sunozzo 200 and activate the alarm device 27 to notify the need to replace the unit 1-5.) [!(Stops driving of pure water production port 1) (step 280). In steps 205 to 230, the CPU explains the necessity of exchanging the third pure water production port 1 to 7. In steps 180 to 200, J
This is done by comparing the relative improvement in purity (U3."02), and if (U3/U2)>setting vessel U/(.
-(J2) ・, If it is Uz, the alarm device 27 is activated and the deionizer 1 is stopped (step 2ε30
>. Furthermore, the CPU compares the purity of the output water from the third pure water sold in step 205 with the purity of the output water from the production unit 7 to the preset desired purity (J).
If 3>Ul-1, it is determined that pure water with the desired purity has been produced, and the second electromagnetic valve 23 is activated to enable water sampling (step 270). ＞If it is UH, re-polishing and producing third pure water.
5 is turned off (step 260). In addition, in this practical example 0, 16 water was treated with 3 pure water products per 1 day to make pure water 111J, but the amount can be increased or decreased as needed to make bJ, Ikoto is iris 31, (shi<
F. In addition, in the Hoji IJ^ example, the circulation path is made of pure water made of 1ji holly [υ]
It is installed only in the filtration unit part (but it is installed in each pure water t!llj construction 2 I knit part)
Ensure that the purity of the output water of the unit is 1111 set for each concerned unit 1, and that the purity of the ultimately rejected pure water is increased by (-0) 1° or more. As explained in this invention, J,, It is, , fil
i zJ・: Measure the purity of each output water from multiple pure water units installed in the manufacturing equipment (), and if necessary, add the pure water “rA” in the previous stage of the output water Since I made it to be circulated to Zukonetsu 1~, each pure water!! A8 Coates 1-
Break 1i)':・, "Kasuit(1(r)・and the desired purity ■ is 1q of pure water

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the present invention: i', 21 1 is the i-th
r*] J5 processing filter [-1-dir
--L-Diagram (There is. (Represents the L main part of the drawing, 31 marks of Xun's wing) 3...
・First pure water production process...ノ)・5-ff! 2 No I + Ii water: F! 7 old,, I-" tsuh7...Third pure water: IA construction unit 9...Mike 1-1] Nb-?-ta'11...'1st electricity 1 person Nh[13 ...Second
Electrical conductivity word 15...Third electricity 1 degree of conductivity h1 23...Second electromagnetic '5125...Circulation j Mo pump special δ'1 Applicant)・L Sen-te・L science+λ , Shikisha 5

Claims (1)

[Claims] A device for producing pure water by processing 1 quintillion water in multiple pure water production units 1-〇゛ (this d5 is equipped with a light metering device for each output water from each pure water production unit 1). , a circulation device that returns the output water to the pure water responsible unit 1- which processed and output the output water in a state where the purity measurement band exceeds a predetermined value;
17) A deionized water supply system that detects the installation of a drive control device that stops deionized water production when the output water reflux continues for a certain period of time.