Heating system of superfine water mist generating device and using method of heating system

Abstract

The invention discloses a heating system of a superfine water mist generating device and a using method of the heating system. The heating system comprises a water inlet pipeline. The water tank is connected with the water inlet pipeline; the high-pressure pump is connected with the water tank through a normal-temperature and normal-pressure water pipe; the efficient heat exchanger is connected with the high-pressure pump through a normal-temperature high-pressure water pipe; the spray head is connected with the efficient heat exchanger through a high-temperature and high-pressure water pipe; the plant area high-temperature steam pipeline is connected with the efficient heat exchanger, and the plant area high-temperature steam pipeline provides a high-temperature steam heat source for the efficient heat exchanger. The ultra-fine water mist device has the advantages that the ultra-fine water mist generation efficiency is improved, the heating mode of an electric heater is replaced with the heating mode of the efficient heat exchanger, the heating efficiency of the heat exchanger is higher than that of the electric heater under the condition that high-temperature steam supply is not limited, and the heating time is shortened under the same flow and temperature difference.

Description

Technical Field

[0001] The present invention relates to the technical fields of mechanical manufacturing and heating of ultra-fine water mist generating devices. Specifically, it relates to a heating system for an ultra-fine water mist generating device and a method for using the same. Background Art

[0002] Currently, ultra-fine water mist refers to fine water mist with a water mist particle size D V0.9 <10 μm, which is a brand-new technology rather than a product iteration based on high-pressure fine water mist. Due to its smaller particle size, it exhibits different characteristics. It has the cooling effect of water mist and the properties similar to gas, with strong permeability, long suspension time. And because of its smaller particle size and larger surface area, it also has a stronger ability to adsorb particles, and can fill the entire enclosed space in a very short time, achieving three-dimensional dust collection and explosion-proof and fire-extinguishing effects.

[0003] The generation principle of ultra-fine water mist is to adopt the temperature-activated water atomization method. Through the coupled design of the nozzle atomization flow channel structure, the high-temperature and high-pressure activated water is sprayed in the form of high-energy metastable superheated water, and the water mist particles are further cut by the vaporization of superheated water and the fluid shear breaking effect of high-speed superheated water, so as to realize the excitation and generation of ultra-fine water mist with a particle size below 10 microns.

[0004] The prerequisite for generating ultra-fine water mist is to generate temperature-activated water. Temperature-activated water is a special type of water in a high-temperature and high-pressure state. Its generation first requires a high-pressure pump to pressurize ordinary normal-temperature water to above 10 MPa, and then a heater to heat the high-pressure water from normal temperature to above 200 degrees Celsius. A large amount of energy supply is required during this process, and with the increase in the flow rate of ultra-fine water mist, the energy power demand also increases linearly.

[0005] In the prior art, the commonly used heating method is electric heating. However, limited by the heating power and power consumption, the maximum flow rate (output) of ultra-fine water mist can only reach 0.1 L / S at present. At this flow rate, the rated power of the heater reaches 180 KW, and often an independent power supply vehicle needs to be equipped to meet the power and power consumption supply, which greatly limits the generation efficiency, use effect and commercial prospect of ultra-fine water mist.

[0006] Therefore, the generation efficiency of the existing ultra-fine water mist generating device is limited, mainly due to the need to pressurize and heat normal-temperature water for generating ultra-fine water mist, which has high energy consumption requirements and high power requirements, and there is a lack of energy sources in ordinary scenarios, making it difficult to achieve effective energy supply.

[0007] In summary, there are at least the following technical problems:

[0008] The production efficiency of existing ultra-fine water mist generating devices is limited, mainly restricted by the fact that the generation of ultra-fine water mist requires pressurizing and heating normal temperature water, resulting in high energy consumption and large power demand. In ordinary scenarios, there is a lack of energy sources, making it difficult to achieve effective energy supply. Summary of the Invention

[0009] The main objective of the present invention is to provide a heating system for an ultra-fine water mist generating device and its usage method, so as to solve the technical problems in the prior art that the production efficiency of existing ultra-fine water mist generating devices is limited and difficult to be commercialized, mainly restricted by the fact that the generation of ultra-fine water mist requires pressurizing and heating normal temperature water, resulting in high energy consumption and large power demand, and there is a lack of energy sources in ordinary scenarios, making it difficult to achieve effective energy supply.

[0010] To achieve the above objective, according to one aspect of the present invention, there is provided a heating system for an ultra-fine water mist generating device, including:

[0011] An inlet water pipe;

[0012] A water tank, which is connected to the inlet water pipe;

[0013] A high-pressure pump, which is connected to the water tank through a normal temperature and normal pressure water pipe;

[0014] A high-efficiency heat exchanger, which is connected to the high-pressure pump through a normal temperature and high-pressure water pipe;

[0015] A nozzle, which is connected to the high-efficiency heat exchanger through a high temperature and high-pressure water pipe;

[0016] A high-temperature steam pipe in the factory area, which is connected to the high-efficiency heat exchanger and provides a high-temperature steam heat source for the high-efficiency heat exchanger.

[0017] Preferably, the industrial waste heat of the high-temperature steam pipe in the factory area is used as the heating heat source.

[0018] Preferably, the high-efficiency heat exchanger is used for heating.

[0019] Preferably, the nozzle is used for spraying ultra-fine water mist.

[0020] Preferably, the inlet water pipe is used to convey normal temperature and normal pressure water to the water tank.

[0021] Preferably, the water tank conveys normal temperature and normal pressure water to the high-pressure pump through a normal temperature and normal pressure water pipe, and the high-pressure pump is used to pressurize the normal temperature and normal pressure water to form normal temperature and high-pressure water.

[0022] Preferably, the normal temperature and high-pressure water pipe is used to convey the normal temperature and high-pressure water of the high-pressure pump to the high-efficiency heat exchanger, and the high-efficiency heat exchanger is used to form high temperature and high-pressure water from the normal temperature and high-pressure water.

[0023] Preferably, the high-temperature and high-pressure water pipe is used to transport the high-temperature and high-pressure water in the high-efficiency heat exchanger to the nozzle.

[0024] Preferably, the high-efficiency heat exchanger includes an inlet for normal-temperature and high-pressure water, an outlet for high-temperature and high-pressure water, an inlet for high-temperature steam, and an outlet for high-temperature steam. The inlet for normal-temperature and high-pressure water is connected to a high-pressure pump through a normal-temperature and high-pressure water pipe. The outlet for high-temperature and high-pressure water is connected to the nozzle through a high-temperature and high-pressure water pipe. The inlet for high-temperature steam is connected to the high-temperature steam pipe in the factory area.

[0025] According to another aspect of the present invention, a method for using a heating system of an ultra-fine water mist generating device is provided, including: transporting normal-temperature and normal-pressure water to a water tank through a water inlet pipe. The water tank transports the normal-temperature and normal-pressure water to a high-pressure pump through a normal-temperature and normal-pressure water pipe. The high-pressure pump pressurizes the normal-temperature and normal-pressure water to form normal-temperature and high-pressure water. The high-pressure pump transports the normal-temperature and high-pressure water to a high-efficiency heat exchanger through a normal-temperature and high-pressure water pipe. The high-efficiency heat exchanger uses the industrial waste heat of the high-temperature steam pipe in the factory area to heat the normal-temperature and high-pressure water to high-temperature and high-pressure water. The high-efficiency heat exchanger transports the high-temperature and high-pressure water to the nozzle through a high-temperature and high-pressure water pipe.

[0026] Applying the technical solution of the present invention has the following technical effects:

[0027] The efficiency of ultra-fine water mist generation is improved. The energy in the form of latent heat of high-temperature steam in the industrial waste heat pipe replaces electric energy to supply the energy required for ultra-fine water mist generation. The energy contained in the high-temperature steam in the industrial waste heat pipe is equivalent to an infinite power relative to the heating demand of ultra-fine water mist, solving the problems of high energy consumption and insufficient high-power energy supply of the ultra-fine water mist generating device. Replacing the electric heater heating form with the heating form of the high-efficiency heat exchanger, when the supply of high-temperature steam is unlimited, the heat exchanger has a higher heating efficiency than the electric heater, and the ultra-fine water mist device shortens the heating time under the same flow rate and temperature difference. In addition to fire extinguishing, the application scenarios of ultra-fine water mist can also play a role in dust suppression and explosion prevention in factories and mines according to the scenario requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The schematic diagrams in the specification forming a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0029] Figure 1 Shows a schematic structural diagram of a heating system of an ultra-fine water mist generating device according to the present invention;

[0030] Figure 2 Shows Figure 1 The principle structural view of the heat exchanger heating high-pressure water of the heating system of the ultra-fine water mist generating device in

[0031] Among them, the above-mentioned drawings include the following reference numerals:

[0032] Water inlet pipe 1; water tank 2; normal temperature and pressure water pipe 3; high-pressure pump 4; normal temperature and high-pressure water pipe 5; high-efficiency heat exchanger 6; high-temperature and high-pressure water pipe 7; high-temperature steam heat source 8; plant high-temperature steam pipeline 9; nozzle 10; high-pressure water inlet 11; high-pressure water outlet 12; high-temperature steam inlet 13; high-temperature steam outlet 14. Specific implementation mode

[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0034] As Figures 1 to 2 shown, the embodiment of the present invention provides a heating system for an ultra-fine water mist generating device, including: a water inlet pipe 1; a water tank 2, the water tank 2 is connected to the water inlet pipe 1; a high-pressure pump 4, the high-pressure pump 4 is connected to the water tank 2 through a normal temperature and pressure water pipe 3; a high-efficiency heat exchanger 6, the high-efficiency heat exchanger 6 is connected to the high-pressure pump 4 through a normal temperature and high-pressure water pipe 5; a nozzle 10, the nozzle 10 is connected to the high-efficiency heat exchanger 6 through a high-temperature and high-pressure water pipe 7; a plant high-temperature steam pipeline 9, the plant high-temperature steam pipeline 9 is connected to the high-efficiency heat exchanger 6, and the plant high-temperature steam pipeline 9 provides a high-temperature steam heat source 8 for the high-efficiency heat exchanger 6.

[0035] In this embodiment, the water inlet pipe is used to convey normal temperature and pressure water to the water tank 2. The water tank 2 is connected to the water inlet pipe 1, and the water tank 2 conveys the normal temperature and pressure water to the high-pressure pump 4 through the normal temperature and pressure water pipe 3. The high-pressure pump 4 is used to pressurize the normal temperature and pressure water to form normal temperature and high-pressure water. The normal temperature and high-pressure water pipe 5 is used to convey the normal temperature and high-pressure water of the high-pressure pump 4 to the high-efficiency heat exchanger 6, and the high-efficiency heat exchanger 6 is used to form high-temperature and high-pressure water from the normal temperature and high-pressure water. The high-pressure pump 4 is connected to the water tank 2 through the normal temperature and pressure water pipe 3; the high-efficiency heat exchanger 6 is connected to the high-pressure pump 4 through the normal temperature and high-pressure water pipe 5, and the high-efficiency heat exchanger 6 is used for heating. The high-efficiency heat exchanger includes a normal temperature and high-pressure water inlet 11, a high-temperature and high-pressure water outlet 12, a high-temperature steam inlet 13 and a high-temperature steam outlet 14. The normal temperature and high-pressure water inlet 11 is connected to the high-pressure pump 4 through the normal temperature and high-pressure water pipe 5. The high-temperature and high-pressure water outlet 12 is connected to the nozzle 10 through the high-temperature and high-pressure water pipe 7. The high-temperature steam inlet 13 is connected to the plant high-temperature steam pipeline 9. The nozzle 10 is used to spray ultra-fine water mist, and the nozzle 10 is connected to the high-efficiency heat exchanger 6 through the high-temperature and high-pressure water pipe 7; the high-temperature and high-pressure water pipe 7 is used to convey the high-temperature and high-pressure water in the high-efficiency heat exchanger 6 to the nozzle 10. The plant high-temperature steam pipeline 9 is connected to the high-efficiency heat exchanger 6, and the plant high-temperature steam pipeline 9 provides a high-temperature steam heat source 8 for the high-efficiency heat exchanger 6. The industrial waste heat of the plant high-temperature steam pipeline 9 is used as the heating heat source.

[0036] Ultra-fine water mist fire extinguishing and dust suppression and explosion prevention are generally used in industrial and mining enterprises, where there is a lot of industrial waste heat in the form of high-temperature steam. By using the high-efficiency heat exchanger 6 to replace the electric heater and substituting the latent heat of the high-temperature steam of the industrial waste heat for the electric energy of the power generation vehicle to supply energy to the ultra-fine water mist generating device, it is possible to obtain materials locally to solve the problem of insufficient energy supply for the generating device, and at the same time, the heat exchange efficiency of the heat exchanger is higher than that of the electric heater, so that the normal temperature water can be heated into active water in a shorter time, improving the generation efficiency of the ultra-fine water mist.

[0037] In this embodiment, for the ultra-fine water mist generation principle, the process of liquid droplet atomization is essentially to break a liquid with a certain volume by a certain method to form a droplet group composed of many tiny particles. The atomization process of the liquid is a process of mutual competition between external forces (such as liquid pressure, aerodynamic force, etc.) and the surface tension and viscosity of the liquid. The surface tension of the liquid tries to keep the liquid spherical (at this time, the surface energy of the droplet is the smallest), while the viscosity of the liquid hinders the deformation of the liquid. When the external force is sufficient to overcome the surface tension and the viscosity of the liquid, the liquid will break into many droplets. And these droplets are unstable and will undergo secondary atomization under the action of the surrounding ambient air flow, and then break into smaller droplet particles. Research shows that the smaller the surface tension of the liquid, the easier it is for the liquid film to break and form filaments and ribbons, and finally form finer droplets. The generation of ultra-fine water mist precisely utilizes this characteristic to generate water mist with a finer particle size scale. In the working state of high-pressure fine water mist, fine water mist with a size not greater than 50 μm can be generated; and after heating and raising the temperature of the high-pressure water, the physical properties of the water will change significantly to generate active water. Then, when it flows through the specially designed nozzle 10, an active water spray with a particle size less than 10 μm, or even less than 1 μm, can be generated. By controlling appropriate parameters, the generated water mist not only has diffusivity, penetrability, and a long suspension time, but also is more conducive to dust collection in industrial and mining enterprises and the functions of cooling, asphyxiation, and smoke elimination in fire fighting.

[0038] In this embodiment, for the environmentally friendly and efficient energy supply method, under normal circumstances, the preparation of the precursor of ultra-fine water mist - active water requires a large amount of energy consumption. On the one hand, there is a lack of high-power energy forms to increase the heating speed, real-time heat, and heat flow of high-pressure water. On the other hand, there is also a lack of high-power energy sources to meet the temperature difference for quickly heating high-pressure water with a rated flow rate. By using the latent heat of the high-pressure steam in the industrial waste heat pipeline of the factory area, it is possible to provide a high-efficiency, clean, and high-power energy source for the generation of fine water mist. Through the high-efficiency heat exchanger 6 and in the way of heat exchange with the latent heat of steam, the heating efficiency can be improved. The combination of the high-temperature steam energy form and the heating method of the high-efficiency heat exchanger 6 provides a feasible way for the efficient preparation of active water. The utilization of waste heat and energy conservation and consumption reduction can perfectly solve the problem of high energy consumption in the process of active water preparation.

[0039] In this embodiment, the heating principle of the heat exchanger is to effectively utilize thermal energy and achieve energy conservation through heat transfer. However, electric heating will have energy loss in the process of converting electricity into heat. At the same time, given that the latent heat supply of high-temperature steam is much greater than the demand for ultra-fine water mist, and electric heating is limited by the power limit, the heat exchanger is better than electric heating in terms of energy utilization efficiency. On the other hand, compared with electric heaters, heat exchangers are more convenient for users and more flexible to use. Heat exchangers can be matched with a variety of energy sources, while electric heating has limitations such as power supply. Using industrial waste heat pipeline steam as the heating source, heat exchanger form as the heating method, and high-temperature steam as the heat source, the heating form of the heat exchanger can solve the problem of insufficient energy power and high energy consumption in the production of ultra-fine water mist. Ultra-fine water mist can also be used in dust reduction and explosion prevention operations in industrial and mining enterprises.

[0040] In this embodiment, the latent heat of high-temperature steam from industrial waste heat is used as energy to replace electrical energy, and the high-efficiency heat exchanger 6 is used to replace the electric heater to supply energy to the ultra-fine water mist. This not only solves the problem of insufficient energy power and power consumption of the ultra-fine water mist, but also solves the problem of improving the efficiency of ultra-fine water mist generation.

[0041] In another embodiment of the present invention, a method for using a heating system of an ultra-fine water mist generating device is provided, comprising: conveying water at normal temperature and pressure to a water tank 2 through a water inlet pipe 1, the water tank 2 conveying the water at normal temperature and pressure to a high-pressure pump 4 through a normal temperature and pressure water pipe 3, the high-pressure pump 4 pressurizing the water at normal temperature and pressure to form normal temperature and high pressure water, the high-pressure pump 4 conveying the normal temperature and high pressure water to a high-efficiency heat exchanger 6 through a normal temperature and high pressure water pipe 5, the high-efficiency heat exchanger 6 raising the temperature of the normal temperature and high pressure water to high-temperature and high-pressure water by utilizing the industrial waste heat of a high-temperature steam pipe 9 in the plant area, and the high-efficiency heat exchanger 6 conveying the high-temperature and high-pressure water to a nozzle 10 through a high-temperature and high-pressure water pipe 7.

[0042] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0043] Improved the efficiency of ultra-fine water mist generation. The latent heat of high-temperature steam in industrial waste heat pipelines replaces electrical energy to supply the energy required for ultra-fine water mist generation. The energy contained in the high-temperature steam in industrial waste heat pipelines is infinite relative to the heating demand of ultra-fine water mist, which solves the problem of high energy consumption and insufficient high-power energy supply of ultra-fine water mist generation devices. The heating form of the electric heater is replaced by the heating form of the high-efficiency heat exchanger 6. When the high-temperature steam supply is unlimited, the heat exchanger has a higher heating efficiency than the electric heater, and the ultra-fine water mist device shortens the heating time under the same flow rate and temperature difference. In addition to fire fighting, ultra-fine water mist can also be used in factories and mines to suppress dust and prevent explosions according to scene requirements.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A heating system for an ultra-fine water mist generating device, characterized in that, Comprising: Water inlet pipe; Water tank, which is connected to the water inlet pipe; High-pressure pump, which is connected to the water tank through a normal-temperature and normal-pressure water pipe; High-efficiency heat exchanger, which is connected to the high-pressure pump through a normal-temperature and high-pressure water pipe; Spray head, which is connected to the high-efficiency heat exchanger through a high-temperature and high-pressure water pipe; Plant high-temperature steam pipe, which is connected to the high-efficiency heat exchanger and provides a high-temperature steam heat source for the high-efficiency heat exchanger.

2. The heating system of the ultra-fine water mist generating device according to claim 1, characterized in that, The industrial waste heat of the plant high-temperature steam pipe is used as a heating heat source.

3. The heating system of the ultra-fine water mist generating device according to claim 1, characterized in that, The high-efficiency heat exchanger is used for heating.

4. The heating system of the ultra-fine water mist generating device according to claim 1, characterized in that, The spray head is used for spraying ultrafine water mist.

5. The heating system of the superfine water mist generating device according to claim 1, characterized in that, The water inlet pipe is used to convey normal-temperature and normal-pressure water to the water tank.

6. The heating system of the ultra-fine water mist generating device according to claim 1, characterized in that, The water tank conveys normal-temperature and normal-pressure water to the high-pressure pump through a normal-temperature and normal-pressure water pipe, and the high-pressure pump is used to pressurize the normal-temperature and normal-pressure water to form normal-temperature and high-pressure water.

7. The heating system of the superfine water mist generating device according to claim 1, characterized in that The normal-temperature and high-pressure water pipe is used to convey the normal-temperature and high-pressure water of the high-pressure pump to the high-efficiency heat exchanger, and the high-efficiency heat exchanger is used to form high-temperature and high-pressure water from the normal-temperature and high-pressure water.

8. The heating system of the ultra-fine water mist generating device according to claim 1, characterized in that, The high-temperature and high-pressure water pipe is used to convey the high-temperature and high-pressure water in the high-efficiency heat exchanger to the spray head.

9. The heating system of the superfine water mist generating device according to claim 1, characterized in that, The high-efficiency heat exchanger includes a normal-temperature and high-pressure water inlet, a high-temperature and high-pressure water outlet, a high-temperature steam inlet and a high-temperature steam outlet. The normal-temperature and high-pressure water inlet is connected to the high-pressure pump through a normal-temperature and high-pressure water pipe, the high-temperature and high-pressure water outlet is connected to the spray head through a high-temperature and high-pressure water pipe, and the high-temperature steam inlet is connected to the plant high-temperature steam pipe.

10. A method of using a heating system of an ultra-fine water mist generating device, based on the heating system of the ultra-fine water mist generating device according to any one of claims 1-9, characterized in that, Comprising: Convey normal-temperature and normal-pressure water to the water tank through the water inlet pipe. The water tank conveys the normal-temperature and normal-pressure water to the high-pressure pump through a normal-temperature and normal-pressure water pipe. The high-pressure pump pressurizes the normal-temperature and normal-pressure water to form normal-temperature and high-pressure water. The high-pressure pump conveys the normal-temperature and high-pressure water to the high-efficiency heat exchanger through a normal-temperature and high-pressure water pipe. The high-efficiency heat exchanger uses the industrial waste heat of the plant high-temperature steam pipe to heat up the normal-temperature and high-pressure water to high-temperature and high-pressure water. The high-efficiency heat exchanger conveys the high-temperature and high-pressure water to the spray head through a high-temperature and high-pressure water pipe.

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