A water system dispensing apparatus

Abstract

The present application relates to pure water supply technical field, especially point to a water system distribution device, including: main pure water tank, sanitary pump, ultraviolet sterilization assembly, water end, heat exchanger, pure water supply assembly, temporary pure water tank, the present application, through setting up heat exchanger in the rear of water end, the water after heating backflow to main pure water tank, in this case, the temperature of heat exchanger outlet can be controlled slightly higher than the constant temperature outlet water temperature, its water after heating backflow to main pure water tank, and the pure water in main pure water tank mixes, so that it can ensure the constant temperature of main pure water tank outlet, so as not to directly reflect the water temperature deviation caused by unstable heating of heat exchanger to water end, and the water end has constant temperature water.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pure water supply, in particular to a water system distribution device. BACKGROUND

[0002] Pharmaceutical workshops, medical devices, medical device production, processing and use links need to use pure water, and a pure water supply system needs to be set up in the place.

[0003] The conventional pure water supply system includes a main pure water tank, a sanitary pump, an ultraviolet sterilization assembly, a water end, a heat exchanger (heating assembly), and a pure water supply assembly. The heat exchanger is arranged at the front end of the water end. The sanitary pump pumps the deionized water (pure water) in the main pure water tank through the ultraviolet sterilization assembly and the heat exchanger to the water end. The water temperature of the water end is difficult to control during use. Even if more temperature detection elements are used in cooperation with a complex control system, the pure water in the water end will still be cold or hot. It is a problem that the use place always wants to solve to ensure constant temperature water outlet of the water supply end. The present application develops a water system distribution device capable of ensuring constant temperature water outlet in combination with the existing pure water supply system and the actual use demand. SUMMARY

[0004] The purpose of the present application is to solve the problems existing in the prior art and provide a water system distribution device.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: a water system distribution device, comprising a main pure water tank, a sanitary pump, an ultraviolet sterilization assembly, a water end, a heat exchanger, and a pure water supply assembly. The water outlet and the backwater outlet of the main pure water tank are connected by a pipeline system. The sanitary pump, the ultraviolet sterilization assembly, the water end, and the heat exchanger are installed in the pipeline system.

[0006] Among them, the sanitary pump and the ultraviolet sterilization assembly are close to the water outlet of the main pure water tank. The heat exchanger is close to the backwater outlet of the main pure water tank. The water end is located behind the ultraviolet sterilization assembly and in front of the heat exchanger.

[0007] The heat exchanger comprises an insulation outer shell, an auxiliary pipeline and a core pipeline, the side of the insulation outer shell is provided with a steam inlet and a steam outlet, the auxiliary pipeline and the core pipeline are located inside the insulation outer shell, the diameter of the core pipeline is smaller than that of the auxiliary pipeline, the core pipeline is located inside the auxiliary pipeline, and the core pipeline and the auxiliary pipeline have a part of common side, the inside of the auxiliary pipeline and the outside of the core pipeline form a second pure water flow area, one end of the steam inlet is opposite to the second pure water flow area, a communication port is formed on the side of the core pipeline and close to the top, the communication port communicates the inside of the core pipeline with the second pure water flow area, the top of the core pipeline is provided with a liquid outlet, the bottom of the core pipeline is provided with a first liquid inlet, the bottom of the insulation outer shell is fixedly connected with a second liquid inlet, one end of the second liquid inlet communicates with the second pure water flow area.

[0008] The first liquid inlet and the liquid outlet of the heat exchanger are installed in a pipeline system.

[0009] Further comprising a temporary pure water tank, the water inlet of the temporary pure water tank is connected with the water outlet of the pure water supply assembly, and the water outlet of the temporary pure water tank is connected with the second liquid inlet through a pipeline.

[0010] Further:

[0011] An electric conductivity instrument, a first flow meter, a TOC interface, a blowdown port and a first sampling port are arranged in the pipeline between the liquid outlet of the heat exchanger and the liquid inlet of the main pure water tank.

[0012] A second flow meter and a second sampling port are arranged in the pipeline between the water outlet of the main pure water tank and the water inlet of the water end.

[0013] Further:

[0014] The auxiliary pipeline and the insulation outer shell are eccentrically arranged, the core pipeline and the insulation outer shell are coaxially arranged, the outside of the auxiliary pipeline and the inside of the insulation outer shell form a small area and a large area, and the small area is close to the steam inlet.

[0015] Further:

[0016] The steam inlet is close to the top of the insulation outer shell, the steam outlet is close to the bottom of the insulation outer shell, the side of the steam inlet is provided with a steam branch pipeline, the gas outlet of the steam branch pipeline is connected with the side of the insulation outer shell, and the gas outlet of the steam branch pipeline is located below the steam inlet.

[0017] Further:

[0018] An adjustable throttling valve is arranged on the steam branch pipeline.

[0019] Further:

[0020] A stabilizing member is fixedly connected between the first liquid inlet and the second liquid inlet.

[0021] Further:

[0022] The pure water supply assembly is a deionization machine.

[0023] Further:

[0024] The heat exchanger is supplied with steam from a sanitary double-tube-plate evaporator.

[0025] The present application has the following beneficial effects:

[0026] 1. Compared with the prior art, the water system distribution device sets the heat exchanger behind the water end, and the heated water flows back to the main pure water tank. In this case, the temperature of the water outlet of the heat exchanger is slightly higher (generally 5℃ higher) than the set constant temperature water outlet temperature, the heated water flows back to the main pure water tank (the main pure water tank has more constant temperature water), and the pure water in the main pure water tank is mixed, so that the constant temperature of the water outlet of the main pure water tank can be ensured, and the water temperature deviation caused by unstable heating of the heat exchanger is not directly reflected to the water end, and the water end has constant temperature water.

[0027] 2. Compared with the prior art, the water system distribution device sets a temporary pure water tank, and improves the structure of the heat exchanger. The pure water (normal temperature) generated by the deionization machine directly enters the temporary pure water tank, and does not affect the temperature of the pure water in the main pure water tank. After the pure water is heated by the heat exchanger, it is mixed with the water flowing back in the pipeline system and enters the main pure water tank. The process continuously adds new pure water to the main pure water tank, so that the constant temperature pure water is supplied for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole schematic diagram of the present application;

[0029] Figure 2 It is a perspective view of the heat exchanger of the present application;

[0030] Figure 3 It is a front view of the heat exchanger of the present application;

[0031] Figure 4 It is Figure 3 A-A partial cross-sectional view of the present application;

[0032] Figure 5 It is a cross-sectional view of the heat exchanger of the present application.

[0033] LEGEND:

[0034] 1, main pure water tank; 2, temporary pure water tank; 3, sanitary pump; 4, ultraviolet sterilization assembly; 5, water end; 6, heat exchanger; 61, heat preservation outer shell; 62, steam inlet; 63, steam outlet; 64, steam branch pipe; 65, adjustable throttle valve; 66, auxiliary pipeline; 67, core pipe; 68, communication port; 69, liquid outlet; 610, first liquid inlet; 611, second liquid inlet; 612, stabilizing piece; 7, first sampling port; 8, second sampling port; 9, blowdown port. DETAILED DESCRIPTION

[0035] REFERENCE Figures 1-5 The water system distribution device provided by the application comprises a main pure water tank 1, a sanitary pump 3, an ultraviolet sterilization assembly 4, a water end 5, a heat exchanger 6, a pure water supply assembly, and a temporary pure water tank 2.

[0036] The water outlet and the backwater outlet of the main pure water tank 1 are connected through a pipeline system, and the sanitary pump 3, the ultraviolet sterilization assembly 4, the water end 5, and the heat exchanger 6 are all installed in the pipeline system; the sanitary pump 3 provides power to make the water in the pipeline system flow, and the water is subjected to sterilization treatment through the ultraviolet sterilization assembly 4, and the water end 5 is provided with water with a certain pressure, which can be used or not used by a user, and the heat exchanger 6 performs secondary heating on the circulating water passing through the heat exchanger 6 to ensure constant water temperature (water temperature is lost in the circulating process).

[0037] Among them, the sanitary pump 3 and the ultraviolet sterilization assembly 4 are close to the water outlet of the main pure water tank 1, the heat exchanger 6 is close to the backwater outlet of the main pure water tank 1, and the water end 5 is located behind the ultraviolet sterilization assembly 4 and in front of the heat exchanger 6; the pure water reaching the water end 5 must be subjected to sterilization treatment through the ultraviolet sterilization assembly 4 to ensure the sanitation of the pure water, and the heat exchanger 6 is arranged behind the water end 5 to supplement the temperature of the circulating water.

[0038] It is worth noting that the front and rear positions in the application refer to the direction of water flow, that is, the circulating water first passes through the rear and then passes through the front.

[0039] Specific heat exchanger 6 includes: insulation outer shell 61, auxiliary pipeline 66, core pipe 67, auxiliary pipeline 66, core pipe 67 are located in the inside of insulation outer shell 61, the side of insulation outer shell 61 is provided with steam inlet 62, steam outlet 63, heat exchanger 6 is supplied with high temperature steam by sanitary double tube plate evaporator, high temperature steam passes through the inside of insulation outer shell 61, and the fluid in the inside of auxiliary pipeline 66 and core pipe 67 is non-contact heated, the process does not appear the condition that pure water contacts steam, can guarantee that pure water meets the health requirements, the diameter of core pipe 67 is less than the diameter of auxiliary pipeline 66, and the core pipe 67 is located in the inside of auxiliary pipeline 66, and the core pipe 67 and auxiliary pipeline 66 have part common side surfaces, such as Figure 4 The cross section shown in the figure, the inside of auxiliary pipeline 66 and the outside of core pipe 67 form second pure water flow area, one end of steam inlet 62 is opposite to second pure water flow area, the side surface of core pipe 67 and close to the top is provided with communication port 68, communication port 68 communicates the inside of core pipe 67 with second pure water flow area, the top of core pipe 67 is provided with liquid outlet 69, the bottom of core pipe 67 is provided with first liquid inlet 610, the bottom of insulation outer shell 61 is fixedly connected with second liquid inlet 611, one end of second liquid inlet 611 communicates with second pure water flow area.

[0040] Working principle: high temperature steam enters the inside of insulation outer shell 61 through steam inlet 62, is directly blown on the outside of second pure water flow area on auxiliary pipeline 66, is then guided and dispersed, surrounds auxiliary pipeline 66, is mainly contacted with auxiliary pipeline 66 in the process, is secondarily contacted with the common part of auxiliary pipeline 66 and core pipe 67, and finally steam is discharged through steam outlet 63.

[0041] First liquid inlet 610 and liquid outlet 69 of heat exchanger 6 are installed in the pipeline system; the water inlet of temporary pure water tank 2 is connected with the water outlet of pure water supply assembly, the water outlet of temporary pure water tank 2 is connected with second liquid inlet 611 through a pipeline, and the position of temporary pure water tank 2 is relatively high, so that the water in the inside can flow into first liquid inlet 610.

[0042] Temporary pure water tank 2 relies on its own position, so that the water in the inside enters first liquid inlet 610 through a pipeline, then enters second pure water flow area, and the circulating water in the pipeline system also enters the inside of core pipe 67 from first liquid inlet 610, since high temperature steam is mainly contacted with auxiliary pipeline 66 and is secondarily contacted with the common part of auxiliary pipeline 66 and core pipe 67, the newly poured pure water can be quickly heated, and the pure water in the circulating process can be warmed up, finally, through communication port 68, the two water flows are mixed and returned to the inside of main pure water tank 1.

[0043] The pipeline between the liquid outlet 69 of the heat exchanger 6 and the liquid inlet of the main pure water tank 1 is provided with a conductance instrument, a first flow meter, a TOC interface, a blowdown port 9 and a first sampling port 7.

[0044] In an embodiment, the blowdown port 9 is arranged to discharge water in the pipeline system during cleaning. The main pure water tank 1 is generally provided with a blowdown port. The second flow meter measures the water output by the main pure water tank 1, and the first flow meter measures the water backflowing from the main pure water tank 1. Both of them need to maintain a relative balance to ensure the stable operation of the water supply system. The conductance instrument mainly measures the electrical conductivity of the pure water used at a temperature. Generally, the resistivity is greater than 0.5 MΩ·cm or the electrical conductivity is less than 2 μs / cm, which meets the requirements.

[0045] In an embodiment, as shown in Figures 4-5 , the auxiliary pipeline 66 is arranged eccentrically with the heat preservation outer shell 61, and the core pipeline 67 is arranged coaxially with the heat preservation outer shell 61. The outer side of the auxiliary pipeline 66 and the inner side of the heat preservation outer shell 61 form a small area and a large area, and the small area is close to the steam inlet 62.

[0046] The steam directly enters the small area, then enters the large area along the outer side of the auxiliary pipeline 66, is concentrated in the large area, and finally flows downward.

[0047] The steam inlet 62 is close to the top of the heat preservation outer shell 61, and the steam outlet 63 is close to the bottom of the heat preservation outer shell 61, which is beneficial to the flow of steam. The side surface of the steam inlet 62 is provided with a steam branch pipe 64. The gas outlet of the steam branch pipe 64 is connected with the side surface of the heat preservation outer shell 61, and the gas outlet of the steam branch pipe 64 is located below the steam inlet 62, which accelerates the flow of steam and improves the heat exchange efficiency.

[0048] The steam output from the steam branch pipe 64 does not fully contact the auxiliary pipeline 66 and the core pipeline 67, which can replace the heat exchange efficiency, but there is a problem of low heat utilization rate. The steam branch pipe 64 is provided with an adjustable throttle valve 65 for adjusting the amount of high-temperature steam output from the steam branch pipe 64.

[0049] The user adjusts the opening of the adjustable throttle valve 65 according to the heat circulation requirement, so that the heat exchange efficiency is stable and meets the requirements.

[0050] The first liquid inlet 610 and the second liquid inlet 611 are fixedly connected with a stabilizing piece 612 for keeping the stability of the pipeline of the first liquid inlet 610 and the second liquid inlet 611.

[0051] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water system dispensing device, comprising a main pure water tank (1), a sanitary pump (3), an ultraviolet sterilization assembly (4), a water using end (5), a heat exchanger (6), a pure water supply assembly, characterized in that: The water outlet and the backwater outlet of the main pure water tank (1) are connected through a pipeline system, the sanitary pump (3), the ultraviolet sterilization assembly (4), the water using end (5) and the heat exchanger (6) are all installed in the pipeline system; The sanitary pump (3) and the ultraviolet sterilization assembly (4) are close to the water outlet of the main pure water tank (1), the heat exchanger (6) is close to the backwater outlet of the main pure water tank (1), the water using end (5) is located behind the ultraviolet sterilization assembly (4) and in front of the heat exchanger (6); The heat exchanger (6) comprises a heat preservation outer shell (61), an auxiliary pipeline (66) and a core pipeline (67), the heat preservation outer shell (61) is provided with a steam inlet (62) and a steam outlet (63) on the side surface, the auxiliary pipeline (66) and the core pipeline (67) are located in the interior of the heat preservation outer shell (61), the diameter of the core pipeline (67) is smaller than that of the auxiliary pipeline (66), the core pipeline (67) is located in the interior of the auxiliary pipeline (66), the core pipeline (67) and the auxiliary pipeline (66) have a part of common side surfaces, the interior of the auxiliary pipeline (66) and the exterior of the core pipeline (67) form a second pure water flowing area, one end of the steam inlet (62) is opposite to the second pure water flowing area, the side surface of the core pipeline (67) and close to the top is provided with a communication port (68), the communication port (68) communicates the interior of the core pipeline (67) with the second pure water flowing area, the top of the core pipeline (67) is provided with a liquid outlet (69), the bottom of the core pipeline (67) is provided with a first liquid inlet (610), the bottom of the heat preservation outer shell (61) is fixedly connected with a second liquid inlet (611), one end of the second liquid inlet (611) is communicated with the second pure water flowing area; The first liquid inlet (610) and the liquid outlet (69) of the heat exchanger (6) are installed in the pipeline system; Further comprising a temporary pure water tank (2), the water inlet of the temporary pure water tank (2) is connected with the water outlet of the pure water supply assembly, the water outlet of the temporary pure water tank (2) is connected with the second liquid inlet (611) through a pipeline.

2. A water system dispensing apparatus as defined in claim 1, wherein: An electric conductivity instrument, a first flowmeter, a TOC interface, a blowdown port (9) and a first sampling port (7) are arranged in the pipeline between the liquid outlet (69) of the heat exchanger (6) and the liquid inlet of the main pure water tank (1); A second flowmeter and a second sampling port (8) are arranged in the pipeline between the water outlet of the main pure water tank (1) and the water inlet of the water using end (5).

3. A water system dispensing apparatus as defined in claim 1, wherein: The auxiliary pipeline (66) and the heat preservation outer shell (61) are arranged eccentrically, the core pipeline (67) and the heat preservation outer shell (61) are coaxially arranged, the outer side of the auxiliary pipeline (66) and the inner side of the heat preservation outer shell (61) form a small area and a large area, and the small area is close to the steam inlet (62).

4. A water system dispensing apparatus as defined in claim 1, wherein: The steam inlet (62) is close to the top of the heat preservation outer shell (61), the steam outlet (63) is close to the bottom of the heat preservation outer shell (61), the side surface of the steam inlet (62) is provided with a steam branch pipeline (64), the gas outlet of the steam branch pipeline (64) is connected with the side surface of the heat preservation outer shell (61), and the gas outlet of the steam branch pipeline (64) is located below the steam inlet (62).

5. A water system dispensing apparatus as claimed in claim 4, wherein: An adjustable throttle valve (65) is arranged on the steam branch pipe (64).

6. A water system dispensing apparatus as defined in claim 1, wherein: The first liquid inlet (610) and the second liquid inlet (611) are fixedly connected with a stabilizing piece (612).

7. A water system dispensing apparatus as defined in claim 1, wherein: The pure water supply assembly is a deionization machine.

8. A water system dispensing apparatus as defined in claim 1, wherein: The heat exchanger (6) is supplied with steam by a sanitary double-tube-plate evaporator.

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