CN210118746U - Gas evaporator - Google Patents

Abstract

The utility model provides a gas evaporator, including water tank and heat pipe, the water tank includes water inlet and steam outlet, the heat pipe includes vertical portion, horizontal part and vertical pipe, wherein the bottom of vertical portion communicates the horizontal part, horizontal part lower part intercommunication a plurality of vertical pipes, wherein vertical pipe is the evaporation end of heat pipe, and vertical part is the condensation end of heat pipe, vertical part stretches into the water tank bottom, vertical pipe and horizontal part set up in gas burner; the heat pipes are at least two, and a communicating pipe is arranged between the vertical parts of the adjacent heat pipes. The utility model discloses the condensation end structure to the heat pipe in the gas evaporator is improved, sets up communicating pipe between the adjacent condensation segment, through setting up communicating pipe, can avoid being heated inhomogeneously between the heat pipe, realizes the pressure equilibrium between the heat pipe, avoids the inhomogeneous defect that leads to of being heated between the different heat pipes.

Description

Gas evaporator

Technical Field

The utility model relates to an evaporator technology especially relates to an evaporator of heat pipe of new-type structure.

Background

The heat pipe technology is a heat transfer element called a "heat pipe" of George geover Grover (George Grover) utility model of national laboratory of Los Alamos (Los Alamos) in 1963, which makes full use of the heat conduction principle and the rapid heat transfer property of a phase change medium, and the heat of a heating object is rapidly transferred to the outside of a heat source through the heat pipe, and the heat conduction capability of the heat pipe exceeds the heat conduction capability of any known metal.

The heat pipe technology is widely applied to the industries of aerospace, military industry and the like, and since the heat pipe technology is introduced into the radiator manufacturing industry, the design idea of the traditional radiator is changed for people, the single heat radiation mode that a high-air-volume motor is used for obtaining a better heat radiation effect is avoided, the heat pipe technology is adopted for enabling the radiator to obtain a satisfactory heat exchange effect, and a new place in the heat radiation industry is opened up. At present, heat pipes are widely applied to various heat exchange devices, including the field of electric power, such as waste heat utilization of power plants.

A vaporizer is a mechanical device that uses the heat energy of a fuel or other energy source to heat water into steam. The evaporator has wide application field and is widely applied to places such as clothing factories, dry cleaning shops, restaurants, bunkers, canteens, restaurants, factories and mines, bean product factories and the like. The existing evaporator is also widely applied to the treatment of various diseases, especially to the treatment of chronic diseases caused by aging and old damage of muscles, ligaments and the like, for example, the CN2167709Y patent, but in the existing technology, for example, the CN2167709Y patent, because the steam is generated directly by heating, the temperature of the generated steam is too high, and the moisture in the generated steam is too high, and the medicine is possibly deposited at the lower part because of particles, so the content of effective components in the ejected steam is too low, and the temperature is too high, and the intelligent degree in the existing technology is not high, and the effective intelligent operation cannot be carried out.

In the prior art, when the heat pipe is used in an evaporator, the shape of the heat pipe influences the heat absorption area of an evaporation end, so that the heat absorption range of the evaporation end is smaller, and a plurality of heat pipes are sometimes required to be arranged in a heat source to meet the heat absorption requirement; when a plurality of heat pipes exist, the heat pipes are positioned at different positions of the burner, so that the phenomenon of nonuniform heat absorption can be generated.

To the above problem, the utility model discloses improve on the basis of preceding utility model, provide the gas evaporator of a new structure, make full use of heat source reduces the energy consumption, improves the combustion effect.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model discloses improve on the basis of preceding utility model, provide a new heat pipe structure evaporimeter to realize the make full use of waste heat.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

a gas steam generator comprises a water tank and a heat pipe, wherein the water tank comprises a water inlet and a steam outlet, the heat pipe comprises a vertical part, a horizontal part and a vertical pipe, the bottom end of the vertical part is communicated with the horizontal part, the lower part of the horizontal part is communicated with a plurality of vertical pipes, the vertical pipe is an evaporation end of the heat pipe, the vertical part is a condensation end of the heat pipe, the vertical part extends into the bottom of the water tank, and the vertical pipe and the horizontal part are arranged in a gas burner; the heat pipes are at least two, and a communicating pipe is arranged between the vertical parts of the adjacent heat pipes.

Preferably, the vertical portion is of a plate-type construction.

Preferably, the horizontal portion extends from the bottom end of the vertical portion in a direction away from the vertical portion, and the vertical portion is a plurality of pipes extending to the bottom of the water tank.

Preferably, the burner comprises a burner base, a furnace ring for placing a water tank is fixedly installed on the burner base, a burner head with a plurality of atomizing holes is fixedly installed in the burner base, a gas pipe is arranged at the bottom of the burner base, a plurality of air outlets for supplying combustion improver to the burner head are arranged on the burner base, an air supply channel communicated with the air outlets is arranged on the outer side of the burner base, and an air inlet is arranged on the air supply channel; the furnace ring, the bottom of the water tank and the burner base form a combustion chamber, the furnace ring is a hollow interlayer, a plurality of air return ports are arranged on the upper part of the interlayer wall of the inner layer of the furnace ring, and the inner cavity of the furnace ring is communicated with the air supply channel.

Preferably, the furnace ring is of an arc-shaped structure.

Preferably, a plurality of air outlets are provided from the lower portion to the upper portion, and the air outlets are distributed with a greater density from the lower portion to the upper portion.

Preferably, a plurality of air outlets are provided from the lower portion to the upper portion, and the density of the air outlet distribution increases from the lower portion to the upper portion.

Preferably, the plurality of air outlets are provided from the lower portion to the upper portion, and the diameter of the air outlets is increased from the lower portion to the upper portion.

Preferably, the air outlet diameter increases with increasing magnitude from the lower part to the upper part.

The furnace ring is of an arc-shaped structure.

Preferably, the horizontal part has a flat tube structure, and the vertical tube has a circular tube structure.

Preferably, the horizontal portion has a semicircular structure, and the vertical pipes are annularly distributed in multiple layers around the center of the horizontal portion.

Preferably, the central axis is provided with a vertical pipe, and a plurality of layers of vertical pipes are arranged along the central axis, and the axis of each layer of vertical pipes is the same distance with the central axis, so that a circular arc structure taking the central axis of the horizontal part as the center is formed.

As preferred, the external diameter of vertical pipe is d, and the distance between the adjacent vertical pipe centre of a circle of same row is L, and the centre of a circle of vertical pipe and two vertical pipe centre of a circle that are close to of adjacent row constitute isosceles triangle's apex angle be N, then satisfy following requirement:

Sin（N）=a-b*S²-c × S, where Ln is a logarithmic function, S = d/(M2-M1), a, b, c are parameters, satisfying the following requirements:

0.795<a<0.805, 0.525<b<0.535,0.895<b<0.905；

preferably, a =0.803, b =0.529, and c = 0.903.

Compared with the prior art, the utility model discloses following advantage has:

1) the utility model discloses the condensation end structure to the heat pipe in the gas evaporator is improved, sets up communicating pipe between the adjacent condensation segment, through setting up communicating pipe, can avoid being heated inhomogeneously between the heat pipe, realizes the pressure equilibrium between the heat pipe, avoids the inhomogeneous defect that leads to of being heated between the different heat pipes.

2) The utility model discloses a change law of intercommunication excessively distributed quantity and pipe diameter can guarantee to reach pressure equilibrium as early as possible at the fluid flow in-process.

3) The utility model discloses a change of distribution density and diameter in the direction of height of the air outlet of combustor can guarantee the intensive mixing of air and gas, reaches abundant burning.

4) The utility model discloses the structure of the evaporating terminal of the heat pipe in the evaporimeter has improved, extends the evaporating terminal of heat pipe to farther direction, under the condition that does not change the condensation end volume of heat pipe for the heat absorption area of the evaporating terminal of heat pipe increases, can enlarge the heat absorption scope of heat pipe like this, can absorb the heat of the farthest end of heat source. Compared with the heat pipe in the prior art, the size of the evaporation end and the condensation end of the heat pipe is kept consistent, and meanwhile, the volume and the occupied area of the heat exchanger are reduced, so that the structure is compact.

5) The utility model discloses set up communicating pipe at adjacent evaporating end, can be heated at vertical pipe different and lead to under the different circumstances of pressure, can be so that the quick little evaporating end of flow direction pressure of the fluid in the big evaporating end of pressure to keep overall pressure balanced, avoid local overheat or subcooling.

Drawings

Fig. 1 is a schematic view of a first embodiment of the steam generator of the present invention.

Fig. 2 is a schematic view of a second embodiment of the steam generator of the present invention.

Fig. 3 is a schematic view of the heat pipe structure of the present invention.

Fig. 4 is a schematic view of fig. 3 as viewed from the bottom.

Fig. 5 is a schematic view of the local structure of the heat pipe provided with the communication pipe according to the present invention.

Fig. 6 is a schematic view of a third embodiment of the steam generator of the present invention.

Fig. 7 is an enlarged fragmentary illustration of fig. 4.

Fig. 8 is a schematic structural diagram of the communication pipe for arranging adjacent heat pipes according to the present invention.

Fig. 9 is a schematic view of the structure of the burner of the present invention.

In the figure: 1-a burner base, 2-a furnace ring, 3-a combustion head, 4-an air supply channel, 5-a combustion chamber, 7-an atomization hole, 8-a heat insulation material, 10-a heat pipe, 111-an air supply port, 112-an air outlet, 121-an air outlet, 211-an air return port, 101-a vertical part, 102-a horizontal part, 103-a vertical pipe, 104-a circular pipe, 105-a water tank, 106-a heat source channel, 107-a communicating pipe, 108-a water inlet, 109-a steam outlet, 110-a condensation pipe and 21-an inner-layer sandwich wall.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

In this document, "/" denotes division and "×", "denotes multiplication, referring to formulas, if not specifically stated.

As disclosed in fig. 1 to 8, the gas steam generator using the heat pipe comprises a water tank 105 and a heat pipe 10, wherein the water tank 105 comprises a water inlet 108 and a steam outlet 109, the heat pipe comprises a vertical part 101, a horizontal part 102 and a vertical pipe 103, wherein the bottom end of the vertical part 101 is communicated with the horizontal part 102, the lower part of the horizontal part 102 is communicated with a plurality of vertical pipes 103, wherein the vertical pipe 103 is the evaporation end of the heat pipe, and the vertical part 101 is the condensation end of the heat pipe. The vertical portion 101 extends into the bottom of the tank 105 for heating the liquid in the tank. The vertical pipe 103 and the horizontal portion 102 are disposed in the heat source.

The utility model discloses the evaporator is in service, absorbs the heat from the heat source through vertical pipe 103, then the fluid in vertical pipe 103 evaporates, enters into vertical part through the horizontal part, then at the water of vertical part in with heat release feed water tank, the fluid condenses, relies on the effect of gravity to reentrant vertical pipe 103.

Preferably, the vertical portion is a flat tube structure.

Preferably, the number of the heat pipes is at least two, and a communication pipe is arranged between the vertical parts 101 of the adjacent heat pipes. For example, as shown in fig. 7 and 8, a communication pipe 107 is provided between the vertical portions 101 of two heat pipes adjacent to each other. Through setting up communicating pipe, can avoid being heated unevenly between the heat pipe, realize the pressure balance between the heat pipe, avoid the defect that the inhomogeneous results in of being heated between the different heat pipes.

Preferably, the distance between adjacent communication pipes 107 increases from the lower portion of vertical portion 101 to the upper portion of vertical portion 101. The purpose is in order to set up more communicating pipes, because along with the upward flow of the vertical some fluid of heat pipe, the continuous heat release of fluid, along with the continuous heat release of fluid, the pressure in different heat pipes reduces gradually, consequently through above-mentioned setting, can guarantee to reach pressure equilibrium as early as possible in the fluid flow process, material saving.

Preferably, the distance between adjacent communication pipes 107 increases more and more from the lower portion of vertical portion 101 toward the upper portion of vertical portion 101. Experiments show that the arrangement can ensure that the pressure balance is achieved more optimally and more quickly in the fluid flowing process. This is also the best way of communicating by extensively studying the law of change of the pressure distribution.

Preferably, the diameter of communication pipe 107 is continuously reduced from the lower portion of vertical portion 101 to the upper portion of vertical portion 101. The purpose is to ensure a larger communication area, because the fluid continuously releases heat along with the upward flow of the fluid, and the pressure in different heat pipes is smaller and smaller along with the continuous heat release of the fluid, so that the pressure balance can be ensured to be achieved as soon as possible in the flowing process of the fluid through the arrangement.

Preferably, the diameter of communication pipe 107 is reduced more and more from the lower portion of vertical portion 101 toward the upper portion of vertical portion 101. Experiments show that the arrangement can ensure that the pressure balance is achieved more optimally and more quickly in the fluid flowing process. This is also the best way of communicating by extensively studying the law of change of the pressure distribution.

Preferably, as shown in fig. 1, the horizontal portion 102 extends from the bottom end of the vertical portion 101 to a direction away from the vertical portion 101. The utility model discloses the evaporator improves through the structure that sets up the evaporating end of heat pipe, extends the evaporating end of heat pipe to farther direction, under the condition of the condensation end volume that does not change the heat pipe for the heat absorption area of the evaporating end of heat pipe increases, can enlarge the heat absorption scope of heat pipe like this, can absorb the heat of the farthest end of heat source. Compared with the heat pipe in the prior art, the heat exchange efficiency can be improved by more than 45 percent by keeping the evaporation end and the condensation end of the heat pipe in consistent sizes. Meanwhile, the volume and the occupied area of the condensation end are reduced, so that the structure is compact.

Preferably, the horizontal portions of the two heat pipes extend in opposite directions, respectively. Through setting up two symmetrical heat pipes, can absorb heat in the equidirectional demand that satisfies the heat transfer.

Preferably, the water tank is provided with a liquid medicine. The evaporator is an evaporator with a medicine fumigation and washing treatment function.

Preferably, the generated steam is directly discharged from the steam outlet 109.

As another option, the evaporator further comprises a liquid medicine evaporation tank, the liquid medicine evaporation tank is communicated with the water tank 105 through a pipeline, an atomizer is arranged in the liquid medicine evaporation tank, and the liquid medicine evaporation tank is provided with a steam outlet.

The water tank is internally provided with medicines which are soaked in water, when the medicine water heater is used, water is heated in the water tank through the heat pipe, the medicines are heated through the water, and therefore liquid medicine is generated in the water tank 105. The generated liquid medicine enters the liquid medicine evaporation tank through a pipeline, is atomized in the liquid medicine evaporation tank and is discharged through the steam outlet. The vapor outlet may be discharged directly against the patient's diseased site for treatment.

As shown in fig. 1 and 2, the burner includes a burner base 1, a furnace ring 2 for placing a water tank 105 is fixedly installed on the burner base 1, a burner head 3 with a plurality of atomizing holes 7 is fixedly installed in the burner base 1, an air supply port 111 connected with a gas pipeline is arranged at the bottom of the burner base 1, a plurality of air outlets 112 for supplying combustion air to the burner head 3 are arranged on the burner base 1, an air supply pipe 4 communicated with the air outlets 112 is arranged at the outer side of the burner base 1, an air inlet 121 is arranged at the lower end of the air supply pipe 4, and a shell of the air supply pipe 4 covers the burner base 1, so that the burner base 1 can be used for heating the entering air, and the heat energy of the gas can be saved. Preferably, the burner head 3 is of circular configuration, as seen from above

The plurality of atomization holes 7 are arranged on the combustion head 3, so that the fuel gas can achieve the best atomization effect, the fuel gas can be sufficiently combusted, the furnace ring 2 is horn-shaped, the opening part of the furnace ring 2 is in a circular shape corresponding to the outer wall of the water tank, the water tank can be uniformly heated, the temperature in the boiler can be quickly raised, the furnace ring 2, the water tank and the burner base 1 form a combustion chamber 5 for preventing flame from leaking outwards, the flame in the combustion chamber does not overflow along the bottom of the boiler, the heat energy is prevented from being taken away by the high-temperature flame, the heat energy loss phenomenon of 20% -30% of the total heat supplied by the fuel gas is solved, meanwhile, the temperature of the surrounding environment is not raised due to the heat taken away by the high-temperature flame, and the operating environment in the kitchen is improved; the furnace ring 2 is a hollow interlayer, a plurality of air return ports 211 are arranged on the inner interlayer wall 21 of the furnace ring 2 close to the opening part of the furnace ring, and the inner cavity of the furnace ring 2 is communicated with the air supply channel 4.

And a waste gas auxiliary exhaust port 22 communicated with the combustion chamber 5 and the outside is arranged at a position close to the bottom end on the furnace ring 2, so that the gas after full combustion is exhausted out of the combustion chamber, the gas in the combustion chamber can be better mixed with fresh air and fully combusted, and the generation of harmful gas is inhibited.

The outer surface of the furnace ring 2 is coated with a heat insulation material 8, and the inner surface of the furnace ring 2 can also be simultaneously coated with the heat insulation material 8. This prevents heat loss and also prevents the surrounding environment from increasing in temperature due to heat loss.

The fan blows air into the combustion chamber from the air inlet, the air supply channel and the air outlet, the air is mixed and combusted with fuel gas which is atomized into the combustion chamber from the air supply port through the atomization hole in the combustion chamber, the water tank is heated, the temperature of the gas in the combustion chamber is also increased, most of insufficiently combusted high-temperature gas (the temperature of the high-temperature gas can reach more than 800 ℃) can pass through the return air inlet and then returns to the combustion chamber again through the inner cavity of the furnace ring, the air supply channel and the air outlet for combustion, the heat of the insufficiently combusted high-temperature gas can be recycled and fully combusted, the consumption of the fuel gas is greatly reduced, the generation of carbon monoxide and nitrogen-hydrogen compounds which are extremely harmful to human bodies is inhibited, meanwhile, partial waste gas generated in the combustion chamber is discharged from a gap between the water tank and the furnace ring, and the gap between the water tank and the furnace ring is very small, therefore, the burning flame can not overflow from the gap, so that the heat loss is less, and a small part of waste gas generated in the combustion chamber is discharged through the waste gas auxiliary exhaust port.

Preferably, as shown in fig. 1 and 2, the furnace ring is in an arc structure.

Preferably, the plurality of air outlets 112 are provided from the lower portion to the upper portion, and the air outlets are distributed at a density which is first increased and then decreased at a certain position from the lower portion to the upper portion. The upper portion through setting up a plurality of air outlets 112 is to the change of the distribution density of lower part position, the air output through upper and lower position is little, make upper portion to the combustion-supporting air of lower part increase gradually, then reduce gradually, make even the air group that maximum position department air quantity leads to exist, but the volume of air through upper portion lower part reduces gradually and makes the air group and then gradual intensive mixing, make air gradual mix with the gas like this, reach abundant mixed effect, avoid the gas of assaulting suddenly of a large amount of air in upper portion or lower part, make the air form the existence of big group, cause the mixture of air gas not good. Through a large amount of experiments and numerical simulation's research discovery, through above-mentioned setting, can make air gas intensive mixing, the combustion effect improves about 10%. It should be noted that the above results are obtained by the present applicant through a lot of studies and are not common knowledge in the art.

Preferably, the plurality of air outlets are arranged from the lower part to the upper part, the air outlet distribution has an increasing density with decreasing amplitude from the lower part to the upper part, and the air outlet distribution has an increasing density with decreasing amplitude starting at a certain position. Through a large amount of experiments and numerical simulation research discovery, this setting can make air and gas more abundant mixture, improves combustion efficiency.

Preferably, the certain position is an intermediate position in the height direction of the hob 2.

Preferably, the plurality of air outlets 112 are provided from the lower portion to the upper portion, and the diameter of the air outlets is first increased and then decreased at a certain position from the lower portion to the upper portion. Through the change of the upper portion to the diameter of lower part position that sets up a plurality of air outlets 112, the air output through upper and lower position is little, make upper portion to the combustion-supporting air of lower part increase gradually, then reduce gradually, make even the air group that maximum position department air quantity leads to exist, but the volume of air through the upper portion lower part reduces gradually and makes air group and then gradual intensive mixing, make air gradual mix with the gas like this, reach abundant mixed effect, avoid the gas of assaulting suddenly of a large amount of air in upper portion or lower part, make the air form the existence of big group, cause the mixture of air gas not good. Through a large amount of experiments and numerical simulation's research discovery, through above-mentioned setting, can make air gas intensive mixing, the combustion effect improves about 10%. It should be noted that the above results are obtained by the present applicant through a lot of studies and are not common knowledge in the art.

Preferably, the air outlet diameter decreases progressively from the lower part to the upper part, and at a certain point, the air outlet diameter decreases progressively more. Through a large amount of experiments and numerical simulation research discovery, this setting can make air and gas more abundant mixture, improves combustion efficiency.

Preferably, the certain position is an intermediate position in the height direction of the hob 2.

The vertical pipes are multiple, and the distribution density of the vertical pipes is smaller and smaller along the radial direction from the center of the combustor to the outside. In numerical simulations and experiments, it was found that a single vertical tube receives less and less heat in a radial direction from the center of the burner, and the temperatures of the vertical tubes at different positions are different, thereby causing local heating unevenness. Since the gas is first burned at the middle portion as the gas is burned, and then the generated high-temperature gas moves outward from the center, the amount of heat received from the middle portion to the outside is gradually reduced, and since the more outward, the more the horizontal portion area is increased due to the increase in the diameter, the less the amount of heat distributed per unit area is also reduced, thereby reducing the amount of heat distributed per vertical pipe. This results in uneven heating of the vertical tubes at different locations, resulting in different temperatures. The utility model discloses a density that sets up vertical pipe in the different positions of combustor is different to the whole heat pipe temperature that makes keeps the same basically, thereby improves holistic heat exchange efficiency, and material saving avoids the local damage that the temperature is inhomogeneous to cause, prolongs the life of heat pipe.

Preferably, the distribution density of the vertical tubes is continuously increased to a smaller and smaller extent in a radial direction outward from the center of the burner. As the change of vertical pipe distribution density, the utility model discloses a large amount of numerical simulation and experiments have been carried out to obtain foretell vertical pipe distribution density's change law. Through the change rule, materials can be saved, and meanwhile, the heat exchange efficiency can be improved by about 9%.

Preferably, the diameter and length of each of the vertical tubes 103 are the same.

Preferably, the number of the vertical pipes 103 is multiple, and the pipe diameter of the vertical pipe is smaller and smaller along the radial direction from the center of the burner to the outside. The specific reason is the same as the reason for the distribution density of the vertical tubes as before.

Preferably, the diameter of the vertical pipe is gradually increased in a smaller and smaller range along a radial direction outward from the center of the burner. The specific reason is the same as the reason for the distribution density of the vertical tubes as before.

Preferably, the distribution density and length of all the vertical tubes 103 are the same.

Preferably, the distribution density of the atomizing holes 7 is smaller and smaller along the radial direction from the center of the burner head 3 to the outside. Guarantee that the gas increases gradually from outside to the quantity distribution in the middle of, a large amount of gas are located middle part position abundant burning, from middle part burning then flue gas from backward flow hole 211 discharge during the burning for the flue gas can all heat the face and heat, guarantees the even of whole heating.

Preferably, the distribution density of the atomizing holes 7 increases in a smaller and smaller range along the radial direction outward from the center of the burner head 3. As the change of atomizing hole distribution density, the utility model discloses a large amount of numerical simulation and experiment have been carried out to obtain foretell distribution density's change law. Through the change rule, the uniformity of heating can be further ensured.

Preferably, the diameter of the atomizing holes 7 becomes smaller and smaller in a radial direction outward from the center of the burner head 3.

Preferably, the diameter of the atomizing holes 7 increases in a smaller and smaller range in a radial direction outward from the center of the burner head 3. The main reasons are the same as before.

Preferably, as shown in fig. 1, the water tank 105 and the burner form a spherical structure, and the sphere 104 is divided into an upper part and a lower part, wherein the upper part is the water tank 105, and the lower part is the burner. Through the arrangement, the heat pipe and the heat exchange fluid can be completely arranged in the ball, so that the external space can be fully utilized, and the purpose of compact structure is achieved.

Preferably, as shown in FIG. 1, the cross-sectional area of the upper portion is 50 to 80%, more preferably 60 to 70%, of the cross-sectional area of the lower portion. Through the area distribution, the heat absorption and the heat dissipation of the heat pipe can achieve the purpose of uniform coordination.

Preferably, as shown in fig. 1, two heat pipes are disposed in the spherical ball, and the vertical portions 101 of the heat pipes 10 are disposed close to each other.

FIG. 2 illustrates an embodiment of a second distribution of heat pipes in a stack. As shown in fig. 2, the water tank 105 has a trapezoidal cross section. The upper bottom of the trapezoid structure is located at the upper part of the vertical part 101, and the lower bottom is located at the upper part of the horizontal part. The heat exchange efficiency can be further improved by arranging the novel trapezoidal structure shown in fig. 2. Because the vertical part along with the heat pipe upwards, the vertical part of heat pipe is continuous to participate in the heat transfer, therefore vertical part lower part temperature is the highest, through setting up trapezium structure, can make the lower part hot water many, upper portion hot water is few, reaches the purpose of even heat transfer. And through setting up trapezium structure, can make external structure compact, outside space can realize make full use of. For example, the position of the waist of the trapezoid structure can be provided with other objects, such as objects needing drying.

Preferably, the upper base of the trapezoid structure is 40-60%, more preferably 50% of the lower base.

Preferably, the trapezoid is an isosceles trapezoid.

Further preferably, the angle formed by the lower base of said trapezoid and the waist is 29-67 °, preferably 40-50 °.

Through foretell configuration optimization, can realize the even and the improvement of heat exchange efficiency of heat transfer in the at utmost.

FIG. 6 illustrates an embodiment of a third distribution of heat pipes in the stack. As shown in fig. 6, the water tank has a rectangular structure. The upper bottom of the rectangular structure is located at the upper portion of the vertical portion 101. By arranging the novel rectangular structure shown in fig. 6, the external structure can be further made compact, and the external space can be fully utilized. Preferably, the long side of the rectangular structure is parallel to the vertical portion.

Preferably, the long side of the rectangular structure is 1.5 to 3 times, preferably 2 times, the short side.

Preferably, the short side of the rectangular structure is 0.6-0.8 times, preferably 0.72 times the radius of the flue gas channel 106. Through foretell configuration optimization, can realize the improvement of heat exchange efficiency to the at utmost.

Furthermore, the utility model discloses a set up the evaporating end of a plurality of vertical pipes 103 as the heat pipe for every vertical pipe 103 adds thermal absorption as independent heat-absorbing pipe one by one, has also increased the heat absorbing area of whole heat pipe evaporating end.

Preferably, the horizontal portion 102 has a flat tube structure, and the vertical tube 103 has a circular tube structure. By providing the horizontal portion as a flat tube structure, the distribution of the vertical tubes 103 can be increased, further improving the heat absorption.

Further preferably, the horizontal portion 102 has a semicircular configuration.

Preferably, as shown in fig. 4, the vertical tubes 103 are annularly distributed in multiple layers around the center of the horizontal portion 102.

Preferably, the vertical pipe 103 is arranged at the central axis position, and the plurality of layers of vertical pipes 103 are arranged along the central axis, and the axis of each layer of vertical pipes 103 is at the same distance from the central axis, so that a circular arc structure with the central axis of the horizontal part 102 as the center is formed.

Through numerical simulation and experiments, it is found that the distance between the vertical pipes 103, including the distance at the same diameter position and the distance between adjacent layers, cannot be too small, the too small results in too many heat pipes to be distributed, the heat absorption capacity of each heat pipe is insufficient, the too large results in too few heat pipes to be distributed, and the heat pipes are overheated, so that the optimized distribution of the vertical pipes 103 of the heat pipes is summarized through a large amount of numerical simulation and experiments, and the heat pipes cannot absorb insufficient heat and cannot absorb too large heat.

As shown in fig. 8, if the inner diameter of the horizontal portion is D, the outer diameter of the vertical pipe 103 is D, the arc of the central axis of the adjacent heat pipe in the same layer is N, the center of the arc is the central axis of the heat accumulator, the diameter M2 of the circle in the same layer, and the diameter M1 of the circle in the adjacent inner layer, the following requirements are met:

Sin（N）=a-b*S²-c × S, where Ln is a logarithmic function, S = d/(M2-M1), a, b, c are parameters, satisfying the following requirements:

0.795<a<0.805, 0.525<b<0.535,0.895<b<0.905；

preferably, a =0.803, b =0.529, and c = 0.903.

Preferably, as M2/D becomes smaller, a becomes larger and b and c become smaller.

Preferably, 0 ° < N <120 °.

Preferably, 10 ° < N <70 °.

The empirical formula is obtained through a large number of numerical simulations and experiments, and the error is basically within 3% through experimental verification.

Preferably, the heat absorption capacity of the heat pipe is 900-;

the temperature of the dry shale layer is 100-120 ℃, and more preferably 110 ℃.

The inner diameter of the horizontal part is 900-.

The vertical tube 103 is 9 to 10 mm, and more preferably 9.5 mm.

Of course, fig. 8 shows only 3 layers of heat pipes, in practice there may be more than three layers. M2 and M1 in fig. 8 are also merely examples, and actually, the heat pipe on the central axis may be the layer where M1 is located, that is, M1 is 0, and the current M1 is the layer where M2 is located.

Preferably, as shown in fig. 5, a communication pipe 107 is provided between at least two adjacent vertical pipes 103. In the research, it is found that in the process of absorbing heat in the vertical section, different absorption heat amounts of the heat absorbing pipes at different positions can occur, so that the pressure or temperature between the vertical pipes 103 is different, and thus, a part of the vertical pipes 103 are heated too high, which results in shortened service life, and once a problem occurs in one vertical pipe 103, the problem that the whole heat pipe cannot be used may occur. The utility model discloses a large amount of research, set up communicating pipe 107 at adjacent vertical pipe, can be heated differently at vertical pipe and lead to under the different circumstances of pressure, can be so that the quick vertical pipe 103 that flow to pressure is little of the fluid in the vertical pipe 103 that pressure is big to keep whole pressure balanced, avoid local overheat or subcooling.

Preferably, a plurality of communication pipes 107 are provided between the adjacent vertical pipes 103 from the lower portion of the vertical pipe 103 to the upper portion of the vertical pipe 103. Through setting up a plurality of communicating pipes, can make the continuous balanced pressure of fluid in the heat absorption evaporation process, guarantee the pressure balance in the whole vertical intraductal.

Preferably, the distance between the adjacent communication pipes 107 is continuously decreased from the lower portion of the vertical pipe 103 to the upper portion of the vertical pipe 103. The purpose is in order to set up more communicating pipes, because with the upflow of flue gas, the heat pipe is heated constantly, with the continuous heating of fluid, is heated more and more inhomogeneous in the different collecting tubes, consequently through above-mentioned setting, can guarantee to reach pressure equilibrium as early as possible in the fluid flow process.

Preferably, the distance between the adjacent communication pipes is decreased more and more from the lower portion of the vertical pipe 103 to the upper portion of the vertical pipe 103. Through the experiment, the arrangement can ensure that the pressure is balanced in a better and faster way in the flowing process of the flue gas. This is also the best way of communicating by extensively studying the law of change of the pressure distribution.

Preferably, the diameter of communication pipe 107 is increased from the lower portion of vertical pipe 103 to the upper portion of vertical pipe 103. The purpose is to ensure a larger communication area for the arrangement, because the fluid is continuously heated along with the upward flow of the flue gas, and the heating in different heat collecting pipes is more and more uneven along with the continuous heating of the heat pipes, so that the pressure balance can be ensured to be achieved as soon as possible in the flow process of the flue gas through the arrangement.

Preferably, the diameter of communication pipe 107 is increased more and more from the lower portion of vertical pipe 103 to the upper portion of vertical pipe 103. Through the experiment, the arrangement can ensure that the pressure is balanced in a better and faster way in the flowing process of the flue gas. This is also the best way of communicating by extensively studying the law of change of the pressure distribution.

The horizontal portion of the heat pipe shown in fig. 4 is preferably a semicircular structure with a diameter of 400-600 mm, and more preferably 500 mm.

The outer diameter d of the vertical tube 103 is 9 to 12 mm, and more preferably 11 mm.

Preferably, as shown in FIG. 1, the system comprises two heat pipes, and the horizontal portions 102 of the two heat pipes extend towards opposite directions, respectively.

Preferably, a communication pipe is provided between the vertical pipes 103 of the adjacent heat pipes. For example, a communication pipe 107 is provided between the vertical pipes 103 of two heat pipes adjacent to each other. By arranging the communicating pipe, uneven heating between evaporation ends of the heat pipes can be avoided, pressure balance between the heat pipes is realized, and the defect caused by uneven heating between different heat pipes is avoided.

Preferably, the distance between the adjacent communication pipes 107 is continuously decreased from the lower portion of the vertical pipe 103 to the upper portion of the vertical pipe 103. The purpose is to arrange more communicating pipes, because the fluid is continuously heated along with the upward flow of the fluid, and the heating in different heat pipes is more and more uneven along with the continuous heating of the fluid, so that the pressure balance can be ensured to be achieved as soon as possible in the flowing process of the fluid through the arrangement.

Preferably, the distance between the adjacent communication pipes 107 is decreased more and more from the lower portion of the vertical pipe 103 to the upper portion of the vertical pipe 103. Experiments show that the arrangement can ensure that the pressure balance is achieved more optimally and more quickly in the fluid flowing process. This is also the best way of communicating by extensively studying the law of change of the pressure distribution.

Preferably, the diameter of communication pipe 107 is increased from the lower portion of vertical pipe 103 to the upper portion of vertical pipe 103. The purpose is to ensure a larger communication area, because the fluid is continuously heated along with the upward flow of the fluid, and the heating in different heat pipes is more and more uneven along with the continuous heating of the fluid, so that the pressure balance can be ensured to be achieved as soon as possible in the fluid flowing process through the arrangement.

Preferably, the diameter of communication pipe 107 is increased more and more from the lower portion of vertical pipe 103 to the upper portion of vertical pipe 103. Experiments show that the arrangement can ensure that the pressure balance is achieved more optimally and more quickly in the fluid flowing process. This is also the best way of communicating by extensively studying the law of change of the pressure distribution.

Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (4)

1. A gas evaporator comprises a water tank and a heat pipe, wherein the water tank comprises a water inlet and a steam outlet, the heat pipe comprises a vertical part, a horizontal part and a vertical pipe, the bottom end of the vertical part is communicated with the horizontal part, the lower part of the horizontal part is communicated with a plurality of vertical pipes, the vertical pipe is an evaporation end of the heat pipe, the vertical part is a condensation end of the heat pipe, the vertical part extends into the bottom of the water tank, and the vertical pipe and the horizontal part are arranged in a gas burner; the heat pipe heat exchanger is characterized in that at least two heat pipes are provided, and a communicating pipe is arranged between vertical parts of adjacent heat pipes;

the burner comprises a burner seat, a furnace ring for placing a water tank is fixedly arranged on the burner seat, a burner head with a plurality of atomizing holes is fixedly arranged in the burner seat, a gas pipe is arranged at the bottom of the burner seat, a plurality of air outlets for supplying combustion improver to the burner head are arranged on the burner seat, an air supply channel communicated with the air outlets is arranged on the outer side of the burner seat, and an air inlet is arranged on the air supply channel; the furnace ring, the bottom of the water tank and the burner base form a combustion chamber, the furnace ring is a hollow interlayer, the upper part of the interlayer wall of the inner layer of the furnace ring is provided with a plurality of air return ports, and the inner cavity of the furnace ring is communicated with the air supply channel;

the air outlets are arranged from the lower part to the upper part, and the distribution density of the air outlets is increased from the lower part to the upper part, and then is gradually reduced at a certain position.

2. The gas fired evaporator of claim 1, wherein said vertical portion is a plate type structure.

3. The gas fired evaporator of claim 1, wherein said horizontal portion extends from a bottom end of the vertical portion in a direction away from the vertical portion, said vertical portion being a plurality of tubes extending to the bottom of the tank.

4. The gas fired evaporator of claim 1, wherein: the furnace ring is of an arc-shaped structure.

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