CN220771989U - Heat exchange system, water inlet system and pure water production equipment - Google Patents

Abstract

The present disclosure provides a heat exchange system, a water inlet system, and a pure water production facility, the heat exchange system including a heat exchanger and a heat exchange medium supply assembly. The heat exchanger comprises a first heat exchange channel and a second heat exchange channel, and water inlet of the pure water system enters the pure water system through the first heat exchange channel. The heat exchange medium supply assembly is communicated with the second heat exchange channel and is used for conveying the heat exchange medium which is subjected to heat exchange and temperature rise with the kiln to the second heat exchange channel. And in the process that the heat exchange medium flows in the second heat exchange channel, the heat exchange medium and the water inlet of the pure water system flowing in the first heat exchange channel are subjected to heat exchange, so that the temperature of the water inlet of the pure water system is increased before the water inlet of the pure water system enters the pure water system. According to the heat exchange system provided by the embodiment of the disclosure, the water inlet of the pure water system is heated by using the waste heat of the kiln, so that the problem of energy waste caused by independently heating the water inlet of the pure water system is saved, and the waste of heat energy is avoided by effectively utilizing the waste heat of the kiln.

Description

Heat exchange system, water inlet system and pure water production equipment

Technical Field

The disclosure relates to the field of heat exchange technology, and in particular relates to a heat exchange system, a water inlet system and pure water production equipment.

Background

The water inlet temperature of the pure water system has a certain influence on the water yield, and the water permeability of the reverse osmosis membrane is increased by about 2.7 percent when the temperature is increased by 1 ℃. The bottom limit of the water inlet temperature of the reverse osmosis membrane is 5-8 ℃, and the infiltration rate is very slow in the temperature range. When the temperature was increased from 11℃to 25℃the water content increased by 50%.

In the related art, in order to ensure the water flux of the reverse osmosis membrane under the working condition of lower ambient temperature, a heating system is usually additionally arranged in a workshop to improve the ambient temperature, so that the reverse osmosis membrane works in the environment with higher water permeability. However, the heating system is additionally arranged, so that a large amount of electric energy is wasted, and the production cost is increased.

Disclosure of Invention

One technical problem to be solved by the present disclosure is: under the lower operating mode of ambient temperature, guarantee reverse osmosis membrane's water flux through installing heating system additional, lead to the electric energy extravagant, problem that manufacturing cost increases.

To solve the above technical problem, an embodiment of the present disclosure provides a heat exchange system for heating water fed to a pure water system, including:

the heat exchanger comprises a first heat exchange channel and a second heat exchange channel, and the water inlet of the pure water system is communicated with the first heat exchange channel; and

the heat exchange medium supply assembly is communicated with the second heat exchange channel of the heat exchanger and is used for conveying the heat exchange medium after heat exchange and temperature rise with the kiln to the second heat exchange channel.

In some embodiments, the heat exchanger is a plate heat exchanger.

In some embodiments, the heat exchange medium supply assembly includes a cooling device and a heat exchange tube, one end of the heat exchange tube is connected to the cooling device, the other end of the heat exchange tube is connected to an upstream end of the second heat exchange channel, and the heat exchange tube is used for exchanging heat with the kiln.

In some embodiments, a temperature control valve is arranged at one end of the heat exchange tube close to the heat exchanger.

In some embodiments, the heat exchange medium supply assembly further comprises a liquid pump disposed on the heat exchange tube between the kiln and the heat exchanger.

In some embodiments, a liquid storage tank is also included, the liquid storage tank being in communication with the downstream end of the second heat exchange channel.

In some embodiments, the reservoir communicates with the cooling device.

In some embodiments, the heat exchange medium is water.

Embodiments of the present disclosure also provide a water intake system including a heat exchange system as described above.

Embodiments of the present disclosure also provide a pure water production apparatus including the heat exchange system as described above or the water intake system as described above.

Through the technical scheme, the heat exchange system provided by the embodiment of the disclosure is used for heating the inlet water of the pure water system and comprises a heat exchanger and a heat exchange medium supply assembly. The heat exchanger comprises a first heat exchange channel and a second heat exchange channel, and water inlet of the pure water system enters the pure water system after passing through the first heat exchange channel. The heat exchange medium supply assembly is communicated with the second heat exchange channel and is used for conveying the heat exchange medium which is subjected to heat exchange and temperature rise with the kiln to the second heat exchange channel. In the process of conveying the heat exchange medium, the heat exchange medium is heated after absorbing the waste heat of the kiln when passing through the kiln, and the heated heat exchange medium enters the second heat exchange channel. And in the process that the heat exchange medium flows in the second heat exchange channel, the heat exchange medium and the water inlet of the pure water system flowing in the first heat exchange channel are subjected to heat exchange, so that the temperature of the water inlet of the pure water system is increased before the water inlet of the pure water system enters the pure water system. After the water inlet temperature of the pure water system is increased, the yield of the pure water system can be increased. According to the heat exchange system provided by the embodiment of the disclosure, the water inlet of the pure water system is heated by using the waste heat of the kiln, so that the problem of energy waste caused by independently heating the water inlet of the pure water system is saved, and the waste of heat energy is avoided by effectively utilizing the waste heat of the kiln.

The water inlet system and the pure water production equipment provided by the embodiment of the disclosure have the same advantages as above due to the arrangement of the heat exchange system.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of a heat exchange system disclosed in an embodiment of the present disclosure;

reference numerals illustrate:

100. a pure water system; 200. a kiln; 300. a heat exchanger; 400. a temperature control valve; 510. a cooling device; 520. a heat exchange tube; 600. a liquid storage tank.

Detailed Description

Embodiments of the present disclosure are described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the disclosure and not to limit the scope of the disclosure, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but rather to include all technical solutions falling within the scope of the claims.

The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.

In the description of the present disclosure, unless otherwise indicated, the meaning of "plurality" is greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like indicate an orientation or positional relationship merely for convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present disclosure. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.

Furthermore, the use of the terms first, second, and the like in this disclosure do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements.

It should also be noted that, in the description of the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present disclosure may be understood as appropriate by those of ordinary skill in the art. When a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device.

All terms used in the present disclosure have the same meaning as understood by one of ordinary skill in the art to which the present disclosure pertains, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.

At present, a kiln 200 for melting glass and a pure water system 100 for cleaning the medicinal glass are arranged in the medicinal glass production workshops.

The water inlet temperature of the pure water system 100 has a certain influence on the water yield, and the water permeability of the reverse osmosis membrane is increased by about 2.7% when the temperature is increased by 1 ℃. The bottom limit of the water inlet temperature of the reverse osmosis membrane is 5-8 ℃, the infiltration rate is very slow, and the water quantity is increased by 50% when the temperature is increased from 11 ℃ to 25 ℃. When the workshop temperature is lower, the water inlet temperature is also lower, so that the water permeability of the reverse osmosis membrane is reduced, and the water flux of the reverse osmosis membrane cannot be ensured.

At present, in order to ensure the water permeability of the reverse osmosis membrane under a low-temperature environment, a heating device is usually additionally arranged in a workshop, and can heat the air in the workshop, so that the temperature of the workshop is maintained at a temperature suitable for the operation of the reverse osmosis membrane, and further the water inlet temperature of the pure water system 100 placed in the workshop is maintained at a temperature suitable for the operation of the reverse osmosis membrane.

Or the heating device can directly heat the inlet water, and the inlet water is fed into the pure water system 100 after being heated to a temperature suitable for the reverse osmosis membrane to work.

This mode requires conversion of external energy such as electricity into heat energy, which in turn heats the incoming water, resulting in increased costs for pure water production.

On the other hand, the waste heat of the kiln 200 working in the same workshop is generally cooled by adopting a heat exchange device, so that a great amount of heat is lost.

To solve the above-mentioned technical problems, embodiments of the present disclosure provide a heat exchange system, a water inlet system and pure water production equipment, which utilize the waste heat of the kiln 200 to heat the water inlet of the pure water system 100, so that the waste heat of the kiln 200 is secondarily utilized, and no external energy source is needed to heat the water inlet, thereby saving the production cost of pure water.

The heat exchange system, the water inlet system and the pure water production apparatus provided by the embodiment of the present disclosure are described below with reference to fig. 1.

Embodiments of the present disclosure provide a heat exchange system for heating the incoming water of the pure water system 100 to a temperature suitable for the operation of a reverse osmosis membrane, for example, the incoming water of the pure water system 100 may be heated to 25-30 ℃.

The heat exchange system comprises a heat exchanger 300 and a heat exchange medium supply assembly, wherein the heat exchanger 300 comprises a first heat exchange channel and a second heat exchange channel, water inlet of the pure water system 100 is communicated with the first heat exchange channel, and water inlet of the pure water system 100 enters the pure water system 100 after passing through the first heat exchange channel.

The heat exchange medium supply assembly is used for supplying a heat exchange medium, for example, the heat exchange medium can be process circulating water, the process circulating water can pass through a heat exchange pipeline of the kiln 200 in the flowing process, and when the process circulating water flows through the heat exchange pipeline of the kiln 200, the temperature of the process circulating water is increased, so that the kiln 200 is cooled.

The process circulating water after temperature rise enters the second heat exchange channel of the heat exchanger 300, the flow directions of the process circulating water in the second heat exchange channel and the inflow water of the pure water system 100 in the first heat exchange channel are opposite, and in the process that the process circulating water and the inflow water of the pure water system 100 flow in the respective channels, heat exchange is completed, and the heat of the process circulating water is transferred to the inflow water of the pure water system 100, so that the inflow water heating effect of the pure water system 100 is realized.

The heat exchange system provided by the embodiment of the disclosure utilizes the heat exchange medium supply assembly to convey the waste heat of the kiln 200 to the second heat exchange channel of the heat exchanger 300 through the heat exchange medium, and the heat exchange medium heats the water inlet of the pure water system 100 in the process that the water inlet of the pure water system 100 passes through the first heat exchange channel. Thus, the water inlet of the pure water system 100 is heated without separately arranging heating equipment, so that the cost of pure water production is saved, and the waste heat of the kiln 200 is effectively utilized.

In a preferred embodiment, the temperature of the heat exchange medium supplied by the heat exchange medium supply assembly after passing through the heat exchange line of the kiln 200 reaches the second heat exchange path of the heat exchanger 300 at 25-30 ℃. Control of the temperature of the heat exchange medium may be achieved, for example, by controlling the flow rate of the heat exchange medium and the heat exchange area with kiln 200.

In some embodiments of the present disclosure, the heat exchanger 300 may be a plate heat exchanger, which has a compact structure, and a heat exchange end difference may reach 1 ℃, so that economy is greatly improved, and heat utilization rate is improved. In addition, the media in the first heat exchange channel and the second heat exchange channel of the plate heat exchanger are water, the structures of the first heat exchange channel and the second heat exchange channel are basically the same, and the heat transfer efficiency is high, so that the consumption of the heat exchange media can be greatly reduced, and the installation and operation cost of a pipeline valve and a pump is further reduced. Furthermore, the plate of the plate heat exchanger is easy to check and manually clean, so that the daily cleaning does not need to consume too much time, and the operation and maintenance are convenient.

In some embodiments of the present disclosure, the heat exchange medium supply assembly includes a cooling device 510 and a heat exchange tube 520.

The cooling device 510 may be a refrigerator, which is used to cool the process circulating water as a heat exchange medium, thereby forming cooling water. For example the temperature of the cooling water may be 6 ℃.

One end of the heat exchange tube 520 is connected to the cooling device 510, and the other end of the heat exchange tube 520 is connected to the upstream end of the second heat exchange passage. The cooling water passes through the kiln 200 in the process of flowing to the second heat exchange channel from the cooling device 510, absorbs the waste heat of the kiln 200 in the process of passing through the kiln 200, achieves the effect of cooling the kiln 200, and simultaneously heats the cooling water.

In some embodiments of the present disclosure, a temperature control valve 400 is provided at an end of the heat exchange tube 520 near the heat exchanger 300. The temperature control valve 400 is used for detecting the temperature of the heat exchange medium to be flowed into the second heat exchange channel, and because the optimal working temperature of the reverse osmosis membrane is 25±1 ℃, when the temperature detected by the temperature control valve 400 exceeds 26 ℃, the opening degree is increased, so that the flow rate of the heat exchange medium is increased, the heat exchange time of the heat exchange medium and the kiln 200 is shortened, and the temperature is further reduced. When the temperature control valve 400 detects that the temperature is less than 24 ℃, the opening degree is reduced, so that the flow speed of the heat exchange medium is reduced, the heat exchange time between the heat exchange medium and the kiln 200 is prolonged, and the temperature of the heat exchange medium is further increased.

In some embodiments of the present disclosure, the heat exchange medium supply assembly further comprises a liquid pump disposed on the heat exchange tube 520 between the kiln 200 and the heat exchanger 300. The liquid pumps can be hot water pumps, and the hot water pumps can be three, and the heat exchange medium demand of heat is large in winter, so that the three hot water pumps are used for one standby in winter, and are used for two standby in other seasons.

In some embodiments of the present disclosure, the heat exchange device further includes a liquid storage tank 600, wherein the liquid storage tank 600 is connected to the downstream end of the second heat exchange channel, and the liquid storage tank 600 is used for collecting the heat exchange medium flowing out through the second heat exchange channel.

In some embodiments of the present disclosure, the liquid storage tank 600 may be in communication with the cooling device 510, and the heat exchange medium is a temperature decrease of the water fed from the pure water system 100 after heat exchange in the heat exchanger 300, and the heat exchange medium after the temperature decrease flows into the liquid storage tank 600. The cooling device 510 cools the heat exchange medium in the liquid storage tank 600 and then re-enters the circulation pipeline, so that on one hand, the input of the heat exchange medium can be saved due to the circulation flow, and on the other hand, the heat exchange medium is cooled once in the heat exchanger 300, so that the power of the cooling device 510 can be reduced, and further, the energy source can be saved.

Embodiments of the present disclosure also provide a water inlet system for supplying hot water to the pure water system 100, which has the same advantages as those described above due to the provision of the heat exchange system as described above.

Embodiments of the present disclosure also provide a pure water production apparatus having the same advantages as those described above due to the provision of the heat exchange system as described above or the water inlet system as described above, and will not be described again here.

Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.

Claims (10)

1. A heat exchange system for heating feed water to a pure water system (100), comprising:

a heat exchanger (300), the heat exchanger (300) comprising a first heat exchange channel and a second heat exchange channel, the water inlet of the pure water system (100) being in communication with the first heat exchange channel; and

the heat exchange medium supply assembly is communicated with the second heat exchange channel of the heat exchanger (300), and is used for conveying the heat exchange medium subjected to heat exchange and temperature rise with the kiln (200) to the second heat exchange channel.

2. The heat exchange system according to claim 1, wherein the heat exchanger (300) is a plate heat exchanger.

3. The heat exchange system according to claim 1, wherein the heat exchange medium supply assembly comprises a cooling device (510) and a heat exchange tube (520), one end of the heat exchange tube (520) is connected to the cooling device (510), the other end of the heat exchange tube (520) is connected to the upstream end of the second heat exchange channel, and the heat exchange tube (520) is configured to exchange heat with the kiln (200).

4. A heat exchange system according to claim 3, wherein the heat exchange tube (520) is provided with a temperature control valve (400) at an end close to the heat exchanger (300).

5. The heat exchange system according to claim 3 or 4, wherein the heat exchange medium supply assembly further comprises a liquid pump arranged on the heat exchange tube (520) between the kiln (200) and the heat exchanger (300).

6. A heat exchange system according to claim 3, further comprising a liquid reservoir (600), the liquid reservoir (600) being in communication with the downstream end of the second heat exchange channel.

7. The heat exchange system of claim 6, wherein the reservoir (600) is in communication with the cooling device (510).

8. The heat exchange system of claim 1, wherein the heat exchange medium is water.

9. A water inlet system comprising a heat exchange system according to any one of claims 1 to 8.

10. A pure water production apparatus comprising the heat exchange system according to any one of claims 1 to 8 or the water intake system according to claim 9.