阅读说明：本技术 一种传热传质装置 (Heat and mass transfer device ) 是由 不公告发明人 于 2018-06-07 设计创作，主要内容包括：本发明提供了一种传热传质装置。传热传质装置包括：外围腔体、起泡板、起泡孔、喷头；其中,所述外围腔体包括入口端和出口端；所述起泡板安装于所述外围腔体的内部；起泡孔位于起泡板上。工质一从所述入口端流入所述外围腔体后,流经所述起泡板时,在起泡孔上产生泡并鼓入工质二。在起泡板下方附近设置有喷头,喷出工质三的液滴或液柱。本发明装置具有较高的传热传质效率。(The invention provides a heat and mass transfer device. The heat and mass transfer device comprises: a peripheral cavity, a foaming plate, a foaming hole and a spray head; wherein the peripheral cavity comprises an inlet end and an outlet end; the foaming plate is arranged inside the peripheral cavity; the foaming holes are positioned on the foaming plate. After the first working medium flows into the peripheral cavity from the inlet end, bubbles are generated on the bubble generating holes and a second working medium is blown into the bubble generating holes when the first working medium flows through the bubble plate. And a nozzle is arranged near the lower part of the foaming plate and used for spraying liquid drops or liquid columns of the working medium III. The device has higher heat and mass transfer efficiency.)

1. A heat and mass transfer apparatus comprising: the device comprises a peripheral cavity (1), a foaming plate (4), foaming holes (5) and a spray head (7);

Wherein the peripheral cavity (1) comprises an inlet end (2) and an outlet end (10); the foaming plate (4) is arranged inside the peripheral cavity (1); the working medium I (3) enters the peripheral cavity (1) from the inlet end (2), and bubbles (11) are generated below the foaming plate (4) through the foaming holes (5) on the foaming plate (4) and enter the liquid pool (6) of the working medium II; the spray head (7) sprays a large amount of liquid drops or liquid columns (8) of the working medium III; liquid drops or liquid columns (8) of the working medium III enter the foam (11) and the liquid pool (6) of the working medium II through foam forming holes (5) on the foam forming plate (4) below the foam forming plate (4).

2. The heat and mass transfer device of claim 1, wherein working fluid three is the same as working fluid two.

3. The heat and mass transfer device of claim 1, wherein working fluid three is a different species than working fluid two.

4. Heat and mass transfer apparatus according to claim 1, characterised in that the spray head (7) is below the bubble plate (4); the spraying direction is opposite to the foaming plate (4) and a large amount of liquid drops or liquid columns (8) of the working medium III are sprayed; the vertical distance between the spray head (7) and the plane of the foaming plate (4) is less than 1.5 m.

5. Heat and mass transfer apparatus according to claim 1, characterised in that the spray heads (7) have a spray direction which is staggered with respect to the plane of the bubble plate (4) and eject a plurality of droplets or columns (8) of working substance three which are directed at an angle towards the bubble plate (4).

6. Heat and mass transfer apparatus according to claim 1, characterised in that the spray heads (7) spray in any direction, ejecting a large number of droplets or columns (8) of working substance three which are carried by the flow of working substance one (3) towards the bubble plate (4).

7. Heat and mass transfer apparatus according to claim 1, characterised in that the droplets or column (8) of working substance three are electrically charged.

8. heat and mass transfer apparatus according to claim 1, characterised in that the liquid sump (6) of working substance one (3) or working substance two is electrically charged.

9. Heat and mass transfer apparatus according to claim 1 wherein working fluid one (3) is a gas and working fluid two and working fluid three are liquids.

10. Heat and mass transfer apparatus according to claim 1, characterised in that working fluid one (3) is one fluid and working fluid two is another fluid.

11. Heat and mass transfer apparatus according to claim 1, wherein working fluid one (3) and/or working fluid two and/or working fluid three contain a substance that can undergo a phase change.

12. Heat and mass transfer apparatus according to claim 1, wherein working fluid one (3) and/or working fluid two and/or working fluid three is a plasma.

13. Heat and mass transfer apparatus according to claim 1, wherein working fluid one (3) and/or working fluid two and/or working fluid three are fluidized substances.

14. A heat and mass transfer apparatus according to claim 13, wherein the fluidized material is solid particles.

15. Heat and mass transfer apparatus according to claim 1, characterised in that the droplets or column (8) of working substance three are functional substances which regulate the bubbles (11).

16. The heat and mass transfer apparatus of claim 15, wherein the functional substance is a surfactant, an acid, a base, an adsorbent, micro-nano particles.

17. A heat and mass transfer apparatus according to any one of claims 1, 2, 3, 7, 8, 9, 10, 11, 12, 13 and 14 wherein a chemical reaction occurs between working fluid three, working fluid one and working fluid two.

18. Heat and mass transfer apparatus according to claim 1, characterised in that the liquid sump (6) of working medium two is provided with heat exchange walls (9).

19. Heat and mass transfer apparatus according to claim 1, characterised in that the droplets or column (8) of working substance three impact the bubble plate (4) to keep the bubble plate (4) and bubble holes (5) clean.

20. A gas cleaning apparatus comprising a heat and mass transfer apparatus according to any one of claims 1 to 19, the contaminant-containing gas being the first working fluid.

21. A desulfurization unit comprising a heat and mass transfer unit as recited in any one of claims 1-16 and 18-19, sulfur-containing gas as working fluid one, absorption liquid as working fluid two and working fluid three.

22. A device for removing fine particulate matter, comprising the heat and mass transfer device according to any one of claims 1 to 16 and 18 to 19, wherein gas containing fine particulate matter is used as working medium one, absorption liquid is used as working medium two and working medium three.

23. A mist eliminator comprising a heat and mass transfer apparatus as claimed in any one of claims 1-16 and 18-19, with the mist-containing gas as working fluid one, the absorption liquid as working fluid two and working fluid three.

24. A denitrator apparatus comprising a heat and mass transfer apparatus as defined in any one of claims 1-16 and 18-19, a nitrogen oxide-containing gas as working fluid one, an absorption liquid as working fluid two and working fluid three.

25. An aeration apparatus comprising a heat and mass transfer apparatus according to any one of claims 1 to 16 and 18 to 19, gas as working fluid one, liquid as working fluid two and working fluid three.

26. A water aeration apparatus comprising a heat and mass transfer apparatus according to any one of claims 1 to 16 and 18 to 19, air or oxygen as working fluid one, water as working fluid two and working fluid three.

27. A carbon dioxide collection apparatus comprising a heat and mass transfer apparatus as claimed in any of claims 1-16 and 18-19, a carbon dioxide-containing gas as working fluid one, an absorption liquid as working fluid two and working fluid three.

28. A heat and mass transfer apparatus comprising a heat and mass transfer apparatus according to any one of claims 1 to 16 and 18 to 19, the temperature of working fluid one being different from the temperature of working fluid two and working fluid three.

29. A dehumidifier comprising a heat and mass transfer apparatus as claimed in any of claims 1-16 and 18-19, wherein the first working medium is a moisture-containing gas or liquid, and the second working medium and the third working medium are absorption liquids containing moisture-absorbing substances or absorption liquids with a temperature lower than that of the first working medium.

30. A humidification apparatus comprising a heat and mass transfer apparatus as claimed in any one of claims 1 to 16 and 18 to 19, working fluid one being a low moisture gas or liquid and working fluid two and working fluid three being high moisture liquids.

Technical Field

The invention relates to the technical field of heat and mass transfer, comprising heat exchange, mixing, purification, chemical reaction and the like.

Background

With the rapid development of industry, there are many occasions, such as heat exchange, chemical engineering, environmental protection treatment and the like, which need different working media, especially the mixing of gas and liquid to achieve the purpose of heat and mass transfer. One of the currently used methods is the bubbling method, i.e. bubbling a gas into a liquid to generate bubbles. However, the conventional bubbling method is not efficient.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a high-efficiency heat and mass transfer device.

A heat and mass transfer apparatus comprising: a peripheral cavity, a foaming plate, a foaming hole and a nozzle;

Wherein the peripheral cavity comprises an inlet end and an outlet end; the foaming plate is arranged inside the peripheral cavity; the working medium I enters the peripheral cavity from the inlet end, and bubbles are generated below the foaming plate through foaming holes in the foaming plate and enter a liquid pool of the working medium II; the spray head sprays a large amount of liquid drops or liquid columns of the working medium III; and liquid drops or liquid columns of the working medium III enter the foam and the liquid pool of the working medium II through the foam holes on the foam plate below the foam plate.

The heat and mass transfer device is characterized in that the working medium III and the working medium II are the same.

The heat and mass transfer device is characterized in that the working medium III and the working medium II are different substances.

The heat and mass transfer device is characterized in that the spray head is arranged below the foaming plate; the spraying direction is opposite to the foaming plate, and a large amount of liquid drops or liquid columns of the working medium III are sprayed out; preferably, the perpendicular distance of the spray head to the plane of the frothing plate is less than 1.5 m.

The heat and mass transfer device is characterized in that the spraying direction of the spray head is staggered with the plane of the foaming plate, and a large amount of liquid drops or liquid columns of the working medium III are sprayed out to be flushed to the foaming plate at a certain angle.

The heat and mass transfer device is characterized in that the spray head sprays in any direction to spray a large amount of liquid drops or liquid columns of the working medium III, so that the liquid drops or liquid columns are carried by the flow of the working medium I and impact on the foaming plate.

The heat and mass transfer device is characterized in that the liquid drop or liquid column of the working medium III is charged.

The heat and mass transfer device is characterized in that a liquid pool of the working medium I or the working medium II is charged.

The heat and mass transfer device is characterized in that the working medium I is gas, and the working medium II and the working medium III are liquid.

the heat and mass transfer device is characterized in that the working medium is one fluid, and the working medium is the other fluid. For example, the working medium is oil, and the working medium is water, so that oil bubbles are blown out. Such as a working fluid one or two, a supercritical fluid.

The heat and mass transfer device is characterized in that the working medium I and/or the working medium II and/or the working medium III contain substances capable of generating phase change. For example, the working medium contains water vapor which can be condensed. For example, working medium is evaporable water.

The heat and mass transfer device is characterized in that the working medium I and/or the working medium II and/or the working medium III are plasmas.

The heat and mass transfer device is characterized in that the working medium I and/or the working medium II and/or the working medium III are fluidized substances. The working medium I can form a bubble in the liquid pool of the working medium II.

The heat and mass transfer device is characterized in that the fluidized substances are solid particles. For example, the liquid pool of working medium two can be a fine particle bed with certain fluidity.

The heat and mass transfer device is characterized in that the liquid drop or liquid column of the working medium III is a functional substance for regulating and controlling the bubble.

The heat and mass transfer device is characterized in that the functional substances are surfactants, acids, alkalis, adsorbents and micro-nano particles.

The heat and mass transfer device is characterized in that a chemical reaction occurs among the working medium III, the working medium I and the working medium II.

The heat and mass transfer device is characterized in that a heat exchange wall surface is arranged in the liquid pool of the working medium II. For example, it may be a heat exchange pipe with additional heat exchange medium therein.

A gas purification device comprises the heat and mass transfer device, and gas containing pollutants is used as a first working medium. For example, the smoke containing the pollutants is used as a first working medium, the absorption liquid is used as a second working medium and a third working medium, and the pollutants in the smoke are absorbed.

A desulfurizing device comprises the heat and mass transfer device, sulfur-containing gas is used as a first working medium, absorption liquid is used as a second working medium and a third working medium. The absorption liquid is, for example, lye.

A device for removing fine particles comprises the heat and mass transfer device, wherein gas containing fine particles is used as a first working medium, absorption liquid is used as a second working medium and a third working medium. For example, air containing particles is used as a first working medium, and the absorption liquid is water. The particulate matter is removed by adsorption within the bubble by collisions with the surface of the bubble and droplets within the bubble.

A demisting device comprises the heat and mass transfer device, wherein gas containing fog drops is used as a first working medium, absorption liquid is used as a second working medium and a third working medium. For example, air containing water mist droplets is used as a first working medium, and the absorption liquid is water.

A denitration device comprises the heat and mass transfer device, wherein gas containing nitrogen oxide is used as a first working medium, absorption liquid is used as a second working medium and a third working medium.

An aeration device comprises the heat and mass transfer device, and gas is used as a first working medium.

A water body aeration device comprises the heat and mass transfer device, air or oxygen is used as a first working medium, water is used as a second working medium and a third working medium. Such as sewage treatment and the aquaculture industry, require aeration of the water.

A carbon dioxide collecting device comprises the heat and mass transfer device, wherein gas containing carbon dioxide is used as a first working medium, absorption liquid is used as a second working medium and a third working medium.

A heat exchange device comprises the heat and mass transfer device, wherein the temperature of a first working medium is different from the temperature of a second working medium and the temperature of a third working medium. The device can realize the transfer of heat between the first working medium and the second working medium. For example, the working medium I is relatively high-temperature gas, and the working media II and III are relatively low-temperature liquid, so that heat can be transferred to the working media II and III through the device by the working medium; steam can be contained in the first working medium, and the steam can be condensed and releases heat to enable heat exchange to be quicker. For example, the first working medium is relatively low-temperature gas, the second working medium and the third working medium are relatively high-temperature liquid, and heat is quickly transferred to the first working medium from the second working medium and the third working medium; the second working medium can be evaporated, and steam enters the bubbles, so that the first working medium can take away heat more quickly. The working medium II can further exchange heat with a heat exchange wall surface in the working medium two-liquid tank.

A dehumidification device comprises the heat and mass transfer device, wherein a first working medium is moisture-containing gas or liquid, and a second working medium and a third working medium are absorption liquid containing moisture-absorbing substances or absorption liquid with the temperature lower than that of the first working medium. For example, the saturated humid air is dehumidified, the saturated humid air is used as a first working medium, and water with a lower temperature, namely a temperature lower than the saturation temperature, is used as absorption liquid, so that steam in the saturated humid air is condensed and removed.

A humidifying device comprises the heat and mass transfer device, wherein a first working medium is low-humidity gas or liquid, and a second working medium and a third working medium are high-water-content liquid. Such as humidifying the air.

The heat and mass transfer device is characterized in that liquid drops or liquid columns of the working medium III impact the foaming plate and the foaming holes to keep the foaming plate and the foaming holes clean.

the invention realizes the full mixing of the working medium I, the working medium II and the working medium III.

First, when working fluids two and three are the same species, the mechanism includes, but is not limited to, the following. And the first working medium enters the second working medium for mixing through bubbling. And because the spray head sprays liquid drops before bubbling, the liquid drops also enter the bubbles, thereby forming the condition that the inside bubbles and the outside bubbles are both working medium II, and the mixing degree is high. Further, the droplets within the bubbles are severely disturbed due to the formation, deformation, coalescence, rupture, etc. of the bubbles; while the movement of the droplets within the bubble and their collision with the bubble surface in turn cause the bubble to be severely perturbed. And the sprayed liquid, no matter the liquid drop or the liquid column, passes through the foaming hole, enters into the bubble and then enters into the liquid pool of the working medium II, or directly enters into the liquid pool of the working medium II, and the liquid drop and the liquid column effectively supplement the working medium II. This supplementation enhances the stability and effectiveness of the foaming. Especially, when the flow rate of the first working medium is large, a large amount of bubbles are generated and need to be supplemented by a large amount of the second working medium. Otherwise, the state of more bubbles and less liquid can appear, and the bubbles can be combined into big bubbles, which is very unfavorable for the mixing of the working medium I and the working medium II. And a heat exchange wall surface can be arranged in the liquid pool of the working medium II, and the heat exchange wall surface is washed by the bubbles and a large amount of liquid drops in the bubbles, so that the heat exchange effect is better than that of only using dry bubbles.

When the working media two and three are different substances, the liquid drops in the bubbles are severely disturbed due to the processes of forming, deforming, merging, breaking and the like of the bubbles on one hand, and the bubbles are severely disturbed due to the movement of the liquid drops in the bubbles and the collision of the liquid drops with the surfaces of the bubbles on the other hand, so that the working media one, the working media two and the working media three are well mixed. The liquid drops and liquid columns of the working medium III can be functional substances for regulating and controlling bubbles, such as surfactants, acids, alkalis, adsorbents, micro-nano particles and the like. Besides heat and mass transfer, chemical reaction can further occur among the working medium I, the working medium II and the working medium III.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.