Distilled water production and distribution system

Abstract

The utility model discloses a distilled water production and distribution system which comprises a water production unit and a distribution unit, the water production unit comprises a condenser, a preheater assembly, an evaporator assembly, a first conductivity meter, a first discharge branch and a water production branch, the condenser is connected with the preheater assembly, the preheater assembly is connected with the evaporator assembly, the evaporator assembly is connected with the condenser, and the water production branch is connected with the distribution unit. The first conductivity meter is connected with the first discharge branch and the water production branch; the distribution unit comprises a water storage tank, a water supply branch, a water return branch, a second discharge branch and a second conductivity meter, the water supply branch connects the water storage tank with the water consumption point, the water return branch connects the water consumption point with the water storage tank, and the second conductivity meter is connected with the second discharge branch and the water return branch. The water quality of the distilled water is detected through the first conductivity meter and the second conductivity meter, and when the water quality does not reach the standard, the first discharge branch and the second discharge branch are opened to discharge the unqualified distilled water, so that the unqualified distilled water is prevented from flowing back to the water storage tank.

Description

TECHNICAL FIELD

[0001] The utility model relates to distillation water technical field, especially relates to a distillation water production distribution system. BACKGROUND

[0002] Water for injection is usually produced by a distillation water machine, which removes impurities and minerals in water through heating and condensation processes, and has extremely high purity, almost no impurities and minerals, and obtains high-purity distilled water. The working principle of the distillation water machine is that when water is heated to boiling, the water molecules will gain enough energy to change from liquid to gas, i.e. steam. During this process, impurities and dissolved substances in water will not evaporate with steam due to their large molecular weight or high boiling point. Subsequently, the steam is directed to a condenser to re-condense into liquid water at a lower temperature, thereby obtaining pure distilled water.

[0003] A patent named a multi-effect distillation water machine full cold shutdown control system is disclosed in the Chinese patent database, application number: 202210691082.3, application date: 2022-06-18. The disclosed technical solution of the multi-effect distillation water machine full cold shutdown control system can realize the preparation of distilled water. The Chinese patent database also discloses a patent named a high-temperature water for injection circulation distribution system, application number: CN201821387574.9, application date: 2018-08-24. The disclosed technical solution of the water for injection circulation distribution system can realize the distribution of distilled water.

[0004] The above-mentioned patent technical solutions all have the following problems: the preparation and distribution system of distilled water may be contaminated during long-term use, resulting in water quality of the produced or distributed distilled water not meeting the use requirements, and the above-mentioned patent solutions cannot effectively reflect the water quality contamination. Utility model content

[0005] The present application provides a distillation water production and distribution system, which can realize the production and distribution of distilled water, and timely discharge unqualified distilled water when the water quality does not meet the requirements.

[0006] The present application provides a distillation water production and distribution system, which includes:

[0007] The water production unit for producing distilled water comprises a condenser, a preheater assembly, an evaporator assembly, a first electric conductivity instrument, a first external discharge branch, and a water production branch; a water inlet of the condenser is connected with a raw water pipeline, a water outlet of the condenser is connected with the preheater assembly, the preheater assembly is connected with the evaporator assembly, the evaporator assembly is connected with the condenser, and a water outlet of the condenser is connected with the first electric conductivity instrument, the first external discharge branch, and the water production branch respectively; and the first electric conductivity instrument is used for controlling on-off states of the first external discharge branch and the water production branch.

[0008] The distribution unit for distributing the distilled water to water consumption points comprises a water storage tank, a water supply branch, a backwater branch, a second external discharge branch, and a second electric conductivity instrument; the water supply branch connects the water storage tank with the water consumption points; the backwater branch connects the water consumption points with the water storage tank; the second external discharge branch and the second electric conductivity instrument are connected with the backwater branch; and the second electric conductivity instrument is used for controlling on-off states of the backwater branch and the second external discharge branch.

[0009] The above-mentioned embodiments have the following beneficial effects: the first electric conductivity instrument and the first external discharge branch are arranged in the water production unit, so that the water quality of the produced water can be detected; when the water quality is substandard, the water production branch is disconnected and the first external discharge branch is opened to discharge the substandard produced water; the second electric conductivity instrument and the second external discharge branch are arranged in the distribution unit, so that the water quality of the distilled water to be distributed can be detected; when the water quality is substandard, the backwater branch is disconnected and the second external discharge branch is opened to discharge the substandard distilled water, thereby avoiding the substandard distilled water from flowing back to the water storage tank.

[0010] On the basis of the above-mentioned embodiments, the embodiments of the present application can also be improved as follows:

[0011] In one of the embodiments of the present application, the water production branch comprises a first valve, the first external discharge branch comprises a second valve, and the first valve and the second valve are connected with the electric control signal of the first electric conductivity instrument. The beneficial effect of this step is that the first electric conductivity instrument is used to control the opening and closing states of the first valve and the second valve, so that the on-off states of the water production branch and the first external discharge branch are cut off.

[0012] In one of the embodiments of the present application, the backwater branch comprises a third valve, the second external discharge branch comprises a fourth valve, and the third valve and the fourth valve are connected with the electric control signal of the second electric conductivity instrument. The beneficial effect of this step is that the second electric conductivity instrument is used to control the opening and closing states of the third valve and the fourth valve, so that the on-off states of the backwater branch and the second external discharge branch are cut off.

[0013] In one of the embodiments of the present application: the return water branch comprises a heat exchanger and a temperature transmitter, the heat exchanger is connected between the water storage tank and the water using point, the temperature transmitter is connected to the pipeline between the heat exchanger and the water using point, and the temperature transmitter is used to control the working state of the heat exchanger. The beneficial effect of this step is that the temperature transmitter detects the return water temperature to control the heat exchanger to automatically heat the return water to meet the water temperature demand of the system.

[0014] In one of the embodiments of the present application: further comprising an alarm unit, the alarm unit is connected to the first electric conductivity instrument and the second electric conductivity instrument. The beneficial effect of this step is that when the produced water quality or the distributed water quality does not meet the standard, the alarm unit sends a signal to the alarm unit to remind the staff. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0016] Figure 1 It is a principle diagram of a distilled water production and distribution system;

[0017] Figure 2 It is a first part principle diagram of a produced water unit;

[0018] Figure 3 It is a second part principle diagram of a produced water unit;

[0019] Figure 4 It is a principle diagram of a distribution unit.

[0020] Among them, 1 is a produced water unit, 101 is a condenser, 102 is a first electric conductivity instrument, 103 is a first external discharge branch, 104 is a produced water branch, 105 is a preheater, 106 is an evaporator, 107 is a first valve, 108 is a second valve;

[0021] 2 is a distribution unit, 201 is a water storage tank, 202 is a water supply branch, 203 is a return water branch, 204 is a second external discharge branch, 205 is a second electric conductivity instrument, 206 is a third valve, 207 is a fourth valve, and 208 is a heat exchanger. DETAILED DESCRIPTION

[0022] In the present application, unless otherwise explicitly specified and limited, the terms in the present application should be understood in a broad sense, for example, the connection can be fixed connection, or detachable connection or integral, can be directly connected, or indirectly connected through intermediate medium. If it involves power, electronic equipment, it can also be electrically connected or communication signal connection, etc. For those skilled in the art, the specific meaning of different terms in the present application can be understood according to the specific circumstances, and the scope of the specific meaning should be limited to the function of the present application.

[0023] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0024] As shown in Figures 1-4 A distilled water production and distribution system, comprising: a water production unit 1, a distribution unit 2, the water production unit 1 is used for producing distilled water, the water production unit 1 comprises: a condenser 101, a preheater 105 assembly, an evaporator 106 assembly, a first electric conductivity instrument 102, a first external discharge branch 103, a water production branch 104, the water inlet of the condenser 101 is connected with a raw water pipeline, the water outlet is connected with the preheater 105 assembly, the preheater 105 assembly is connected with the evaporator 106 assembly, the evaporator 106 assembly is connected with the condenser 101, the water outlet of the condenser 101 is connected with the first electric conductivity instrument 102, the first external discharge branch 103 and the water production branch 104 respectively, the first electric conductivity instrument 102 is used for controlling the on-off of the first external discharge branch 103 and the water production branch 104; the distribution unit 2 is used for distributing distilled water to water consumption points, the distribution unit 2 comprises: a water storage tank 201, a water supply branch 202, a backwater branch 203, a second external discharge branch 204, a second electric conductivity instrument 205, the water supply branch 202 connects the water storage tank 201 with the water consumption points, the backwater branch 203 connects the water consumption points with the water storage tank 201, the second external discharge branch 204 and the second electric conductivity instrument 205 are connected to the backwater branch 203, and the second electric conductivity instrument 205 is used for controlling the on-off of the backwater branch 203 and the second external discharge branch 204.

[0025] In some embodiments of the present application, as shown in Figure 3 The raw water pipeline is connected to the condenser 101, the purified water is heated by the steam generated by the water production unit 1 and then enters the preheater 105 assembly; the condenser 101 is also connected with a chilled water inlet pipeline and a chilled water outlet pipeline, and the steam generated by the water production unit 1 is condensed by introducing chilled water, thereby producing distilled water.

[0026] In some embodiments of the present application, as shown in Figure 1 , 2 the preheater 105 assembly comprises a plurality of preheaters 105 connected in series, which are used to waste heat the raw water, thereby improving the processing efficiency of the evaporator 106.

[0027] In some embodiments of the present application, as shown in Figure 1 , 2 the evaporator 106 assembly comprises a plurality of evaporators 106 connected in series, the raw water inlet of the initial evaporator 106 is connected with the raw water outlet of the terminal preheater 105, the heating port of the initial evaporator 106 is connected with the industrial steam pipeline, the steam outlet of the initial evaporator 106 is connected with the heating port of the subsequent evaporator 106, the heating port of each subsequent evaporator 106 is connected with the steam outlet of the previous evaporator 106, the raw water not evaporated by each evaporator 106 is introduced into the next evaporator 106 for continuous heating and evaporation, and the steam outlet of the tail-end evaporator 106 is connected with the condenser 101.

[0028] In some embodiments of the present application, as shown in Figure 3 the water production branch 104 comprises a water production pipeline and a first valve 107 connected with the water production pipeline, the first discharge branch 103 comprises a first discharge pipeline and a second valve 108 connected with the first discharge pipeline, the first valve 107 and the second valve 108 are connected with the electric control signal of the first electric conductivity instrument 102, the opening and closing states of the first valve 107 and the second valve 108 are controlled by the first electric conductivity instrument 102, and the on-off state of the water production branch 104 and the first discharge branch 103 is cut off.

[0029] In some embodiments of the present application, as shown in Figure 3 the water return branch 203 comprises a water return pipeline and a third valve 206 connected with the water return pipeline, the second discharge branch 204 comprises a second discharge pipeline and a fourth valve 207 connected with the second discharge pipeline, and the third valve 206 and the fourth valve 207 are connected with the electric control signal of the second electric conductivity instrument 205.

[0030] In some embodiments of the present application, the first valve 107, the second valve 108, the third valve 206 and the fourth valve 207 are all pneumatic diaphragm valves.

[0031] In some embodiments of the present application, the distilled water production and distribution system further comprises a controller, which can be an industrial computer, an industrial personal computer or a PLC, and the controller is electrically connected to the first valve 107, the second valve 108, the third valve 206 and the fourth valve 207. The principle of detecting water quality by using a conductivity meter is that conductivity detection is a method for detecting the concentration of dissolved ions in water. Conductivity refers to the measurement of the electrical conductivity of a substance. The higher or lower the conductivity is, the more or less the ion concentration and the type in the water are. Therefore, by measuring the conductivity of purified water, the purity of the water can be determined, and the concentration and type of dissolved ions in the water can be understood. When the conductivity measured by the first conductivity meter 102 exceeds the set value range, the controller controls the first valve 107 to be closed and the second valve 108 to be opened. When the conductivity measured by the second conductivity meter 205 exceeds the set value range, the controller controls the third valve 206 to be closed and the fourth valve 207 to be opened, so as to discharge the unqualified distilled water.

[0032] In some embodiments of the present application, as shown in Figure 4 , a water pump is arranged in the water supply branch 202, and the distilled water in the water storage tank 201 is transported to the water using point by the water pump. The water using point is connected to the external water pipeline through the on-off control of the valve.

[0033] In some embodiments of the present application, as shown in Figure 4 , the return water branch 203 comprises a heat exchanger 208 and a temperature transmitter. The heat exchanger 208 is connected between the water storage tank 201 and the water using point. The temperature transmitter is connected to the pipeline between the heat exchanger 208 and the water using point. The temperature transmitter is used to control the working state of the heat exchanger 208. The temperature transmitter is used to detect the temperature of the return water, so as to control the heat exchanger 208 to automatically heat the return water, so as to meet the water temperature demand of the system.

[0034] In some embodiments of the present application, as shown in Figure 4 , the heat exchanger 208 is connected with a steam pipeline and a condensate pipeline. A filter and a valve are arranged in the steam pipeline. The filter is a Y-type filter, and the valve is a pneumatic angle seat valve. A trap is arranged in the condensate pipeline. When the temperature of the return water is too low, the temperature transmitter in the return water branch 203 controls the pneumatic angle seat valve to be opened through the controller. The steam pipeline introduces steam into the heat exchanger 208. The steam increases the temperature of the return water. The condensate generated by the heat exchange of the heat exchanger 208 is discharged through the condensate pipeline.

[0035] In some embodiments of the present application, the distilled water production and distribution system further comprises an alarm unit, the alarm unit is electrically connected with the first conductivity meter 102 and the second conductivity meter 205, specifically, the alarm unit adopts an audible and visual alarm, the first conductivity meter 102 and the second conductivity meter 205 send signals to the controller, the controller sends signals to the audible and visual alarm, and the alarm unit sends a reminder signal to the staff.

[0036] By configuring the first conductivity meter 102 and the first external discharge branch 103 in the water production unit 1, the water quality of the produced water can be detected, when the water quality is not up to standard, the water production branch 104 is disconnected and the first external discharge branch 103 is opened to discharge the unqualified produced water; by configuring the second conductivity meter 205 and the second external discharge branch 204 in the distribution unit 2, the water quality of the distilled water to be distributed can be detected, when the water quality is not up to standard, the backwater branch 203 is disconnected and the second external discharge branch 204 is opened to discharge the unqualified distilled water, so as to avoid the unqualified distilled water flowing back to the water storage tank 201.

[0037] The above is only an embodiment of the present application, and the common knowledge of specific structures and properties in the scheme is not described in detail, the ordinary skilled in the art knows all the ordinary technical knowledge in the technical field of the present application before the filing date or the priority date, can know all the prior art in the field and has the ability to apply conventional experimental means before the date, the ordinary skilled in the art can improve and implement the present scheme under the inspiration of the present application combined with their own ability, some typical known structures or known methods should not be an obstacle for the ordinary skilled in the art to implement the present application. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application.

Claims

1. A distilled water production and dispensing system, characterized by, The application relates to a water production and distribution system, comprising: a water production unit for producing distilled water, comprising a condenser, a preheater assembly, an evaporator assembly, a first electric conductivity instrument, a first external discharge branch and a water production branch, wherein the water inlet of the condenser is connected with a raw water pipeline, the water outlet is connected with the preheater assembly, the preheater assembly is connected with the evaporator assembly, the evaporator assembly is connected with the condenser, the water outlet of the condenser is connected with the first electric conductivity instrument, the first external discharge branch and the water production branch respectively, and the first electric conductivity instrument is used for controlling the on-off of the first external discharge branch and the water production branch; a distribution unit for distributing the distilled water to water consumption points, comprising a water storage tank, a water supply branch, a backwater branch, a second external discharge branch and a second electric conductivity instrument, wherein the water supply branch connects the water storage tank with the water consumption points, the backwater branch connects the water consumption points with the water storage tank, the second external discharge branch and the second electric conductivity instrument are connected with the backwater branch, and the second electric conductivity instrument is used for controlling the on-off of the backwater branch and the second external discharge branch.

2. The distilled water production and dispensing system of claim 1, wherein, The water production branch comprises a first valve, the first external discharge branch comprises a second valve, and the first valve and the second valve are connected with the electric control signal of the first electric conductivity instrument.

3. The distilled water production and dispensing system of claim 1, wherein, The backwater branch comprises a third valve, the second external discharge branch comprises a fourth valve, and the third valve and the fourth valve are connected with the electric control signal of the second electric conductivity instrument.

4. The distilled water production and dispensing system of claim 1, wherein, The backwater branch comprises a heat exchanger and a temperature transmitter, the heat exchanger is connected between the water storage tank and the water consumption points, the temperature transmitter is connected with a pipeline between the heat exchanger and the water consumption points, and the temperature transmitter is used for controlling the working state of the heat exchanger.

5. The distilled water production and dispensing system of claim 1, wherein, The application further comprises: an alarm unit connected with the electric control signals of the first electric conductivity instrument and the second electric conductivity instrument.

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