CN111336486A

CN111336486A - Steam generation method

Info

Publication number: CN111336486A
Application number: CN202010215842.4A
Authority: CN
Inventors: 姜方军
Original assignee: Zhejiang BothWell Electric Co Ltd
Current assignee: Zhejiang BothWell Electric Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-06-26

Abstract

The invention discloses a steam generation method which is characterized in that a heat exchanger positioned on the liquid level is arranged in a water storage tank provided with a steam outlet, a water inlet cavity is arranged at the top of the water storage tank, and water in the water inlet cavity is sprayed onto the heat exchanger to generate flash evaporation to form steam. The first purpose of the invention is to provide a steam generating method with high steam generating speed, which solves the problem of low steam generating speed of the prior steam generator by submerged heating.

Description

Steam generation method

Technical Field

The invention relates to the technical field of steam production, in particular to a steam production method.

Background

In the prior art, the vertical arrangement of the thermal fluid steam generator is basically to form steam by heating water in a water storage tank by heat generated by an electric heater or fuel combustion to evaporate the water. In order to realize the full utilization of solar energy, the solar energy is used for heating air, then the hot air is input into a heat exchanger in a water storage tank through a pipeline, when the hot air passes through the heat exchanger, the heat is conducted to water in the water storage tank so that the water is evaporated to form steam, the air releasing the heat flows back to a solar heater to be heated by the solar energy, and the circulation is carried out. Because the hot fluid is heated in a flowing manner, heat still flows away if the heat is not exchanged in time (traditional electric heating and fuel oil heating are that a heat source is always maintained in a water storage rod tank (namely static heating), heat exchange efficiency is high and low, the heat is finally released into water, the heat exchange efficiency is affected only by a long heating time end and cannot cause excessive increase of heat loss), the heat flowing away along with the hot fluid is equivalent to heat loss, and the existing steam generator is heated in a static state, so that water is kept still in the heating process (because the static heating does not need water to move), and the heat exchange speed between the heat exchanger and the water is slow; the position of the heat exchanger is fixed, when the water levels are different, the difference of the utilization rate of heat is large, especially when the distance between the heat exchanger and the liquid level is large, the ratio of the heat dissipated by the heat exchanger along the direction far away from the liquid level to the heat transferred by the heat exchanger towards the liquid level direction and the heat evaporated by initial water is large, the larger the ratio is, the lower the heat utilization rate is, all the heat exchangers are installed to be suitable for being close to the liquid level and far away from the bottom of the container, but the installation mode can cause the water exchange to be quickly evaporated to the liquid level and descend to cause the heat exchangers to be exposed (namely, the evaporation time is short), therefore, the existing heat exchangers are all installed at the bottom of the container to sacrifice the heat utilization rate and achieve the effect of delaying the evaporation time; the existing heat exchangers are all used for carrying out heat exchange in a submerged mode, and cannot generate water vapor quickly.

Disclosure of Invention

The first purpose of the invention is to provide a steam generating method with high steam generating speed, which solves the problem of low steam generating speed of the prior steam generator by submerged heating.

The second purpose of the invention is to provide a steam generation method which can keep the distance between a heat exchanger and the liquid level constant in the evaporation process on the basis of the first purpose, and solve the problem that the existing steam generator can only prolong the evaporation time by sacrificing the heat utilization rate.

The third purpose of the invention is to further provide a steam generation method with high heat exchange speed on the basis of the second purpose, and solve the problem that the existing steam generator heated by hot fluid has low heat exchange speed.

A fourth object of the present invention is to further provide a steam generating method in which the force of pushing up water can be increased as the water level increases, to reduce the influence on heat utilization efficiency due to the variation, based on the third object.

The technical problem is solved by the following technical scheme: a steam generation method is characterized in that a heat exchanger positioned on the liquid level is installed in a water storage tank provided with a steam outlet, a water inlet cavity is installed at the top of the water storage tank, and water in the water inlet cavity is sprayed onto the heat exchanger to generate flash evaporation to form steam.

Preferably, the steam-jet generator comprises a water storage tank, wherein the water storage tank is provided with a steam outlet, and the steam-jet generator is characterized in that a first heat exchanger exposed on the liquid level of water in the water storage tank is arranged in the water storage tank, the water storage tank is provided with a heat-releasing medium input pipe, a heat-releasing medium output pipe and a water inlet cavity positioned in the top wall of the water storage tank, the water inlet cavity is provided with a water spray hole facing the first heat exchanger for spraying, the inlet end of the first heat exchanger is connected with the heat-releasing medium input pipe, and the outlet end of the first heat exchanger is connected with the heat-releasing medium output pipe. In use, water is added into the water inlet cavity and then is discharged from the water spray holes to the first heat exchanger to be evaporated to form steam. The first heat exchanger is heated by the action of a hot fluid flowing through the first heat exchanger. The direct spray type heating can generate steam immediately, and the steam generating speed is high.

The invention also comprises a second heat exchanger, the second heat exchanger is suspended in the water storage tank through a plurality of heat exchanger part floating balls, the first heat exchanger and the second heat exchanger are connected in series between the water storage heat release medium input pipe and the heat release medium output pipe, the inlet end of the second heat exchanger part is connected with the outlet end of the first heat exchanger through a flexible liquid inlet pipe, and the outlet end of the second heat exchanger part is connected with the heat release medium output pipe through a flexible liquid outlet pipe. During the use, pack into water in the water storage tank and can hang in water through heat exchanger portion floater to the heat exchanger, except that first heat exchanger is sprayed and is produced steam, the second heat exchanger is to the water that is not evaporated by first heat exchanger and the water of storing in the water storage tank carries out heating liquid and produces steam. The flexibility in the flexible liquid inlet pipe and the flexible liquid outlet pipe in the invention means that: can change along with the lifting of the second heat exchanger, and can not interfere with the lifting of the second heat exchanger. This technical scheme is through hanging in water for passing through heat exchanger portion floater with exchanging the second heat exchanger design, and all second heat exchangers are fixed, can not change because of the change of liquid level apart from the distance of liquid level to can design the heat exchanger for the distance apart from the liquid level in the within range of setting for, thereby realize the rate utilization ratio that improves. The second object of the invention is achieved.

Preferably, the heat exchanger further comprises a third heat exchanger located below the second heat exchanger and a fourth heat exchanger located in the water inlet cavity, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are connected in series between the water storage heat release medium input pipe and the heat release medium output pipe, the third heat exchanger is fixedly connected with the water storage tank, the outlet end of the second heat exchanger is connected with the inlet end of the third heat exchanger through the flexible liquid outlet pipe, the outlet end of the third heat exchanger is connected with the inlet end of the fourth heat exchanger, and the outlet end of the fourth heat exchanger is connected with the heat release medium output pipe in a butt joint mode. The third heat exchanger is designed in the technical scheme, so that heat which is not utilized after the second heat exchanger exchanges heat can be further exchanged into water; the third heat exchanger is positioned below the second heat exchanger, which is equivalent to the function of preserving heat of the second heat exchanger in the direction away from the liquid level. Further improving the heat utilization rate. The fourth heat exchanger is further designed in the water inlet cavity, the quantity of heat displacement of hot fluid flowing through the heat exchanger can be further increased, the temperature difference of the first heat exchanger of the water drum sprayed into the first heat exchanger can be reduced, and the heat utilization rate and the steam forming effect can be further increased.

Preferably, the heat exchanger floating ball is connected with the second heat exchanger through a flexible rope. When boiling is generated in the evaporation process, the second heat exchanger can smoothly shake, and the second heat exchanger can smoothly shake to improve the heat exchange effect.

Preferably, one end of the flexible liquid inlet pipe is connected with the outlet end of the first heat exchanger, the other end of the flexible liquid inlet pipe is connected with the heat exchanger floating ball, the heat exchanger floating ball connected with the flexible liquid inlet pipe is of a hollow structure, the heat exchanger floating ball connected with the flexible liquid inlet pipe is used for suspending the second heat exchanger through a suspension member of the hollow structure, and the flexible liquid inlet pipe, the heat exchanger floating ball connected with the flexible liquid inlet pipe and the suspension member are connected in series to form a liquid conveying pipeline for conveying fluid into the second heat exchanger through the inlet end of the second heat exchanger. The structure is compact and good.

Preferably, the heat exchanger portion floating ball is of a strip structure extending in the vertical direction. The area of the liquid level occupied by the floating ball of the heat exchanger part can be reduced. The interference to the evaporation efficiency is small when the occupied liquid surface area is small.

The invention also comprises a stirrer for stirring the water in the water storage tank, wherein the stirrer comprises a vertical rotating shaft, a motor for driving the vertical rotating shaft to rotate and a plurality of stirring paddles arranged on the vertical rotating shaft, and the stirring paddles are positioned below the second heat exchanger. The vertical rotating shaft is driven by the motor to rotate in the process of heating water by the heat exchanger, the stirring paddle is driven by the vertical rotating shaft to rotate, so that water is stirred, and the water in contact with the heat exchanger is rapidly changed as a result of stirring the water, so that the heat exchange effect is improved. The third object of the invention is achieved. This technical scheme makes water push up water, and the temperature of lower part is low from the heat exchanger below during the stirring for the hydroenergy of contact with the heat exchanger can keep big difference in temperature between with the heat exchanger, and heat transfer speed can obtain improving.

Preferably, the stirring paddle comprises a push plate, a spring, a horizontal connecting rod with one end connected with the vertical rotating shaft and provided with a horizontal sliding cavity, a horizontal sliding pipe with one end sealed and penetrated and fixed at the other end of the horizontal connecting rod and penetrated into the horizontal sliding cavity, a sliding pipe part piston connected in the horizontal sliding pipe in a sealing and sliding mode, and a supporting rod which is connected with the sliding pipe part piston and extends out of the horizontal sliding pipe through the other end of the horizontal sliding pipe, wherein the spring is used for driving the supporting rod to retract towards the horizontal sliding pipe, a connecting rod part piston sealed and arranged on the horizontal sliding pipe in a sliding mode is connected in the horizontal sliding cavity in a sealing and sliding mode, a hydraulic cavity located on one side, far away from the sliding pipe part piston, of the connecting rod part piston is isolated in the horizontal sliding cavity, liquid is filled in the hydraulic cavity, the hydraulic cavity is communicated with the horizontal sliding pipe, and the connecting rod part piston outputs the horizontal sliding cavity through a pull cable output through the hydraulic The stirrer part floating balls of the sliding pipes are connected together, the horizontal sliding pipe is provided with a connecting seat, the upper end of the push plate is hinged with the connecting seat through a shaft pin, the lower end of the push plate is placed on the part, located outside the horizontal sliding pipe, of the supporting rod, the included angle between the shaft pin and the horizontal sliding pipe is smaller than 90 degrees, and the distance between the part, in contact with the push plate, of the supporting rod and the vertical plane of the axis of the shaft pin is increased along with the increase of the distance of the supporting rod outputting the horizontal sliding pipe. According to the technical scheme, in a designed upper water level variation range, the deeper the water level is, the farther the distance between the floating ball and the stirring paddle is, the floating ball moves towards the direction of a vertical rotating shaft through a pull rope connecting pipe piston to enable the volume of a hydraulic cavity to be reduced, liquid in the hydraulic cavity is extruded into a horizontal smooth pipe to overcome the elasticity of a spring to drive a supporting rod to extend out, the supporting rod extends out to drive a push plate to rotate by taking the shaft pin as the shaft to increase the inclination angle, and the force of pushing water up when the push plate rotates is increased when the inclination angle is increased; therefore, according to the technical scheme, the deeper the water level is, the larger the force for pushing up the water to make the water rise is. The force pushing up water in the rotation process of the existing stirring paddle is kept unchanged, so that the water rising speed is slow when the water is deep, the slow water rising speed means that the water contacted with the heat exchanger is slow in conversion, and the slow conversion speed means that the heat exchange speed is slow, so that the influence of the water depth on the heat exchange is large when the existing stirring paddle is used for stirring of a steam generator, and the inclination angle of the push plate is increased when the water depth of the stirrer is increased, so that the force pushing up water is increased when the water depth is increased, and the influence of the water depth increase on the heat exchange speed can be reduced. In the designed water level range, when the water level is lowered to cause the inhaul cable to be loosened, the supporting rod is contracted under the action of the spring to drive liquid in the horizontal smooth pipe to enter the hydraulic cavity and drive the piston of the connecting pipe part to be far away from the vertical rotating shaft, so that the inhaul cable is kept in a tensioning state. The action point of the thrust generated by pushing the push plate by water in the rotating process is always positioned below the shaft pin. The fourth object of the invention is achieved.

Preferably, a through groove which extends in the vertical direction and penetrates through the stirring shaft in the horizontal direction is formed in the vertical stirring shaft, all stirring paddles share one floating ball of the stirrer portion, the floating ball of the stirrer portion is sleeved on the vertical rotating shaft, the floating ball of the stirrer portion is connected with a guy cable connecting rod which penetrates through the through groove, and the guy cable is connected to the guy cable connecting rod and is connected with the floating ball of the stirrer portion. Compact structure and reliable driving.

Preferably, a stay cable through hole is formed in the horizontal connecting rod, a fixed pulley connected with the vertical rotating shaft is further arranged on the stirring paddle, the stay cable through hole is separated from the horizontal sliding cavity through a partition plate, the stay cable extends out of the hydraulic cavity through the partition plate and the stay cable through hole, then is supported on the fixed pulley to be reversed and is connected with the stay cable connecting rod, and the stay cable and the partition plate are connected together in a sealing and sliding mode; when the inhaul cable is tensioned, the inhaul cable is disconnected with the hole wall of the inhaul cable through hole. Resistance when can reducing the cable and remove to the realization makes can drive again when the floater is less, also realizes reducing the volume of floater, and the floater is small then can reduce the floater and occupy the area of liquid level, thereby reduces the influence of floater to evaporation area.

Preferably, the shaft pin is parallel to the horizontal slide tube. The smoothness is better when the supporting rod drives the push plate to rotate.

Preferably, when the supporting rod extends out of the horizontal sliding pipe to the limit position, the inclination angle of the supporting plate is 5 degrees, and when the supporting rod is inserted into the horizontal sliding pipe to the limit position, the supporting plate is in a vertical state.

Preferably, the spring is located in the horizontal sliding tube, and the spring is located on one side of the sliding tube piston away from the holding rod. Compact structure, the overall arrangement is convenient, connects reliably.

Preferably, the shaft pin and the holding rod are both located behind the rotation direction of the pallet when the pallet is driven to rotate by the vertical rotation shaft. Preventing the components located on the push plate from interfering with the action of the push plate pushing water up.

Preferably, the motor is positioned at the top of the water storage tank, and the upper end of the vertical rotating shaft is connected with the motor and suspended in the water storage tank. The sealing is convenient.

Preferably, the inner surface of the top wall of the water storage tank is a slope, and the steam outlet is butted with the highest point of the inner surface of the top wall of the water storage tank. Can occupy the headspace of water storage tank and move the condition on the limit with steam output port at the agitator, improve the patency when steam flows out.

The technical scheme has the following advantages: the response time for generating steam is fast; the distance between the second heat exchanger body and the liquid level can be changed along with the change of the water level, so that the distance between the second heat exchanger body and the liquid level is kept unchanged, and the heat utilization rate is high; the stirrer is arranged to stir the water in the water storage tank, so that the water in contact with the heat exchanger is quickly changed, and the heat exchange effect is improved; during stirring, water pushes up from the lower part of the heat exchanger, and the water temperature at the lower part is low, so that the water in contact with the heat exchanger can keep a large temperature difference with the heat exchanger, and the heat exchange speed can be improved; the deeper the water level, the greater the force of pushing up the water to cause the water to rise, if the force of pushing up the water remains constant, the slower the speed of water rise at the deeper the water, meaning the slow speed of water conversion in contact with the heat exchanger, the slower the speed of conversion meaning the slow speed of heat transfer, so the constant thrust causes the greater the influence of the water depth on the heat transfer, and the invention increases the inclination of the push plate when the water depth increases, thus realizing the increase of the force of pushing up the water when the water depth increases, thus reducing the influence of the water depth increase on the heat transfer speed.

Drawings

FIG. 1 is a schematic cross-sectional view of one embodiment of a steam injection generator of the present invention;

FIG. 2 is a schematic cross-sectional view of another embodiment of a jet steam generator of the present invention;

FIG. 3 is an enlarged partial schematic view at A of FIG. 2;

FIG. 4 is a schematic view of the paddle as projected in direction B of FIG. 3;

FIG. 5 is a schematic cross-sectional view C-C of FIG. 4.

In the figure: the device comprises a water storage tank 1, a steam outlet 2, an inner surface 3 of the top wall of the water storage tank, a flexible liquid outlet pipe 4, a flexible rope 5, a heat exchanger part floating ball 6 connected with a flexible liquid inlet pipe, a suspension part 7, a vertical rotating shaft 9, a motor 10, a stirring paddle 11, a push plate 12, a spring 13, a horizontal sliding cavity 14, a horizontal connecting rod 15, a horizontal sliding pipe 16, a sliding pipe part piston 17, a supporting rod 18, a connecting rod part piston 19, a hydraulic cavity 20, a guy cable via hole 21, a partition plate 22, a fixed pulley 23, a guy cable connecting rod 24, a through groove 25, a stirrer part floating ball 26, a connecting strip 27, a connecting seat 28, a shaft pin 29, an inclined plane 30, a guy cable 31, a water inlet joint 32, a liquid level 33, a heat release medium input pipe 34, a heat release medium output pipe 35, a water inlet cavity 36, a first heat exchanger 37, a second heat exchanger 38, Flexible liquid inlet pipe 43, pipeline 44.

Detailed Description

The technical solution of the present invention is described in detail and fully with reference to the accompanying drawings.

In the first embodiment, referring to fig. 1, a steam generation method is that a heat exchanger located on the liquid level is installed in a water storage tank provided with a steam outlet, and a water inlet cavity is installed at the top of the water storage tank, so that water in the water inlet cavity is sprayed onto the heat exchanger to generate flash evaporation to form steam. In particular, but not exclusively, by means of a steam-injection generator. One embodiment of the steam-injection generator comprises a water storage tank 1. The water storage tank is provided with a steam outlet 2. The inner surface 3 of the top wall of the water storage tank is a bevel. The steam outlet is connected with the highest point of the inner surface of the top wall of the water storage tank. The water storage tank is provided with a heat release medium input pipe 34, a heat release medium output pipe 35 and a water inlet cavity 36 positioned in the top wall of the water storage tank. The water storage tank is internally provided with a first heat exchanger 37, a second heat exchanger 38 and a third heat exchanger 39 from top to bottom in sequence. The first heat exchanger is fixed in the water storage tank. The first heat exchanger is exposed to the surface 33 of the water in the water storage tank. The inlet chamber is provided with a water jet 40 which sprays towards the first heat exchanger. The inlet end of the first heat exchanger is connected with the heat release medium input pipe, and the outlet end is connected with the upper end of the flexible liquid inlet pipe 43. The second heat exchanger is suspended in the water storage tank by a plurality of heat exchanger part floating balls 41. A fourth heat exchanger 42 is arranged in the water inlet cavity. The first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are connected in series between the water storage heat release medium input pipe and the heat release medium output pipe. The inlet chamber is provided with a water inlet connector 32. The third heat exchanger is fixedly connected with the water storage tank. The outlet end of the second heat exchanger is connected with the inlet end of the third heat exchanger through a flexible liquid outlet pipe 4. The third heat exchanger is fixed in the water storage tank and is positioned below the second heat exchanger. The outlet end of the third heat exchanger is connected to the inlet end of the fourth heat exchanger by a conduit 44. And the outlet end of the fourth heat exchanger is butted with the heat release medium output pipe. The heat exchanger part floating ball is connected with the second heat exchanger through a flexible rope 5. The lower end of the flexible liquid inlet pipe is connected with one of the heat exchanger floating balls, the heat exchanger floating ball 6 connected with the flexible liquid inlet pipe is of a hollow structure, and the heat exchanger floating ball connected with the flexible liquid inlet pipe is used for hanging the second heat exchanger through a hanging piece 7 of the hollow structure. The flexible liquid inlet pipe, the heat exchanger floating ball connected with the flexible liquid inlet pipe and the suspension member are connected in series to form a liquid conveying pipeline for inputting fluid into the second heat exchanger through the inlet end of the second heat exchanger.

When the water storage tank is used, water is filled in the water storage tank, the second heat exchanger can be suspended in the water storage tank by the floating ball of the second heat exchanger part, and the fourth heat exchanger is stored in the water inlet cavity to submerge the fourth heat exchanger. The hot fluid flows in through the heat-releasing medium input pipe 34, then sequentially passes through the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger, and then is output from the heat-releasing medium output pipe 35. Water in the water inlet cavity is sprayed onto the first heat exchanger to generate flash evaporation to form steam, the second heat exchanger and the third heat exchanger heat water in the water storage tank to generate steam, the fourth heat exchanger further absorbs waste heat, and the steam is output from the steam output port. The distance of the second heat exchanger body from the liquid surface is always kept constant when the liquid surface 33 changes.

Referring to fig. 2, 3, 4 and 5, in another embodiment of the steam generator, there are the following differences from the first embodiment:

the water storage tank is characterized by further comprising a stirrer for stirring water in the water storage tank, wherein the stirrer comprises a vertical rotating shaft 9, a motor 10 for driving the vertical rotating shaft to rotate and a plurality of stirring paddles 11 arranged on the vertical rotating shaft. The motor is positioned at the top of the water storage tank. The upper end of the vertical rotating shaft is connected with the motor and is suspended in the water storage tank. The stirring paddle is positioned below the second heat exchanger part body. The stirring paddle is positioned above the third heat exchanger part body. The stirring paddle comprises a push plate 12, a spring 13, a horizontal connecting rod 15, one end of which is connected with the vertical rotating shaft and is provided with a horizontal sliding cavity 14, a horizontal sliding pipe 16, one end of which is sealed and penetrated and fixed at the other end of the horizontal connecting rod and is penetrated and arranged in the horizontal sliding cavity, a sliding pipe part piston 17, which is sealed and slidably connected in the horizontal sliding pipe, and a supporting rod 18, which is connected with the sliding pipe part piston and extends out of the horizontal sliding pipe through the other end of the horizontal sliding pipe. The spring is used for driving the holding rod to contract towards the inside of the horizontal sliding pipe. The inside of the horizontal sliding cavity is connected with a connecting rod piston 19 which is arranged on the horizontal sliding pipe in a sealing and sliding way, and the connecting rod piston is separated into a hydraulic cavity 20 which is positioned on one side of the connecting rod piston far away from the piston of the sliding pipe part in the horizontal sliding cavity. The hydraulic cavity is filled with liquid. The hydraulic cavity is communicated with the horizontal sliding pipe through an opening at the inner end of the horizontal sliding pipe. The horizontal connecting rod is internally provided with a guy cable via hole 21. The cable 31 via is separated from the horizontal sliding chamber by the partition plate 22. The stirring paddle is also provided with a fixed pulley 23 connected with the vertical rotating shaft. One end of the stay cable is connected with the piston of the connecting rod part, and the other end of the stay cable extends out of the hydraulic cavity through the partition plate and the stay cable via hole and then is supported on the fixed pulley to be reversed and is connected with the stay cable connecting rod 24. The stay cable is connected with the clapboard in a sealing and sliding way; when the inhaul cable is tensioned, the inhaul cable is disconnected with the hole wall of the inhaul cable through hole. A through groove 25 which extends along the vertical direction and runs through the stirring shaft along the horizontal direction is arranged in the vertical stirring shaft. All paddles share a common agitator section float 26. The floating ball of the stirrer is sleeved on the vertical rotating shaft. The stay cable connecting rod is arranged in the through groove in a penetrating way. The two ends of the guy cable connecting rod are connected with the floating ball of the stirrer part, so that the guy cable is connected with the floating ball of the stirrer part. A spring is located within the horizontal tube. The spring is positioned on one side of the piston of the sliding pipe part, which is far away from the holding rod. The horizontal sliding pipe is connected with a connecting seat 28 through a connecting strip 27. The upper end of the push plate is hinged with the connecting seat through a shaft pin 29, and the lower end of the push plate is placed on the part of the holding rod positioned outside the horizontal smooth pipe. The included angle between the shaft pin and the horizontal sliding pipe is smaller than 90 degrees, specifically parallel to 0 degree. The shaft pin and the supporting rod are positioned behind the rotating direction of the supporting plate when the supporting plate is driven to rotate by the vertical rotating shaft. The distance between the contact part of the supporting rod and the push plate and the vertical plane passing through the axis of the shaft pin is increased along with the increase of the distance of the supporting rod from the horizontal smooth pipe, in particular to the inclined plane 30 formed by gradually reducing the thickness of the supporting rod in the horizontal direction from one end connected with the piston of the smooth pipe part to the other end. The inclined plane is positioned at one side of the supporting rod in the horizontal direction for supporting the push plate. The inclination angle of the supporting plate is 45 degrees when the supporting rod extends out of the horizontal smooth pipe to the limit position, and the supporting plate is in a vertical state when the supporting rod is inserted into the horizontal smooth pipe to the limit position.

The vertical rotating shaft is driven by the motor to rotate in the heating process, the vertical rotating shaft drives the stirring paddle to rotate, so that water is stirred, and the water in contact with the heat exchanger is quickly changed as a result of stirring the water, so that the heat exchange effect is improved. This technical scheme is in the last water level fluctuation range of design, the water level is deepened then the floater is far away more apart from the distance of stirring rake (the water level surpasss the water level maximum value of design then the floater can not continue to rise under the hindrance of hydraulic pressure intracavity part), the floater is drawn connecting pipe portion piston through the cable and is removed towards perpendicular pivot place orientation and make the volume in hydraulic pressure chamber diminish, the liquid in the hydraulic pressure intracavity is extruded in the water level smooth pipe and overcome the elasticity drive holding rod of spring and stretch out, holding rod stretches out then the drive push pedal and uses the pivot to rotate and increase inclination as the axle, the power increase of push pedal push-up water when the inclination increase then push pedal rotates. In the designed water level range, when the water level is lowered (when the water level exceeds the minimum water level value in the design, the spring drives the piston of the sliding pipe part to move to the limit position, and the guy cable is always in a loose state) so as to cause the guy cable to be loose, the holding rod is contracted under the action of the spring to drive the liquid in the horizontal sliding pipe to enter the hydraulic cavity and drive the piston of the connecting pipe part to be far away from the vertical rotating shaft, so that the guy cable is kept in a tensioned state.

Claims

1. A steam generation method is characterized in that a heat exchanger positioned on the liquid level is installed in a water storage tank provided with a steam outlet, a water inlet cavity is installed at the top of the water storage tank, and water in the water inlet cavity is sprayed onto the heat exchanger to generate flash evaporation to form steam.

2. The steam generating method according to claim 1, wherein the method is implemented by a steam generator, the steam generator comprises a water storage tank, the water storage tank is provided with a steam outlet, the water storage tank is provided with a first heat exchanger exposed on the liquid level of the water in the water storage tank, the water storage tank is provided with an input pipe of the heat releasing medium, an output pipe of the heat releasing medium and an inlet cavity in the top wall of the water storage tank, the inlet cavity is provided with a water spray hole for spraying water towards the first heat exchanger, the inlet end of the first heat exchanger is connected with the input pipe of the heat releasing medium, and the outlet end of the first heat exchanger is connected with the output pipe of the heat releasing medium.

3. The steam generating method according to claim 2, further comprising a second heat exchanger suspended in the water storage tank by a plurality of heat exchanger portions, wherein the first heat exchanger and the second heat exchanger are connected in series between the water storage and heat release medium input pipe and the heat release medium output pipe, the inlet end of the second heat exchanger portion is connected with the outlet end of the first heat exchanger portion through a flexible liquid inlet pipe, and the outlet end of the second heat exchanger portion is connected with the heat release medium output pipe through a flexible liquid outlet pipe.

4. The steam generation method according to claim 3, further comprising a third heat exchanger located below the second heat exchanger and a fourth heat exchanger located in the water inlet cavity, wherein the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are connected in series between the water storage and heat release medium input pipe and the heat release medium output pipe, the third heat exchanger is fixedly connected with the water storage tank, the outlet end of the second heat exchanger is connected with the inlet end of the third heat exchanger through the flexible liquid outlet pipe, the outlet end of the third heat exchanger is connected with the inlet end of the fourth heat exchanger, and the outlet end of the fourth heat exchanger is butted with the heat release medium output pipe.

5. The steam generating method as recited in claim 3, wherein the heat exchanger portion float ball is connected with the second heat exchanger by a flexible cord.

6. The steam generating method as claimed in claim 3, wherein one end of the flexible liquid inlet pipe is connected to the outlet end of the first heat exchanger, the other end of the flexible liquid inlet pipe is connected to the heat exchanger floating ball, the heat exchanger floating ball connected to the flexible liquid inlet pipe is hollow, the heat exchanger floating ball connected to the flexible liquid inlet pipe is suspended on the second heat exchanger by a suspension member of the hollow structure, and the flexible liquid inlet pipe, the heat exchanger floating ball connected to the flexible liquid inlet pipe and the suspension member are connected in series to form a fluid delivery pipeline for delivering fluid into the second heat exchanger through the inlet end of the second heat exchanger.

7. The steam generating method as claimed in claim 3, further comprising a stirrer for stirring the water in the water storage tank, wherein the stirrer comprises a vertical rotating shaft, a motor for driving the vertical rotating shaft to rotate, and a plurality of stirring paddles arranged on the vertical rotating shaft, and the stirring paddles are positioned below the second heat exchanger.

8. The steam generating method as claimed in claim 7, wherein the stirring paddle comprises a push plate, a spring, a horizontal connecting rod having one end connected to the vertical rotating shaft and provided with a horizontal sliding chamber, a horizontal sliding tube having one end sealingly inserted into the other end of the horizontal connecting rod and inserted into the horizontal sliding chamber, a sliding tube piston sealingly slidably connected to the horizontal sliding tube, and a supporting rod connected to the sliding tube piston and extending out of the horizontal sliding tube through the other end of the horizontal sliding tube, wherein the spring is used for driving the supporting rod to retract towards the horizontal sliding tube, the horizontal sliding chamber is sealingly slidably connected to a connecting rod piston sealingly installed on the horizontal sliding tube, the connecting rod piston isolates a hydraulic chamber located on a side of the connecting rod piston away from the sliding tube piston in the horizontal sliding chamber, and the hydraulic chamber is filled with liquid, the hydraulic cavity is communicated with the horizontal sliding pipe, a piston of the connecting rod part is connected with a floating ball of a stirrer part of the horizontal sliding pipe, located in the liquid storage tank, of the driving supporting rod through a guy cable output through the hydraulic cavity, the horizontal sliding pipe is provided with a connecting seat, the upper end of the push plate is hinged with the connecting seat through a shaft pin, the lower end of the push plate is placed on the part, located outside the horizontal sliding pipe, of the supporting rod, the included angle between the shaft pin and the horizontal sliding pipe is smaller than 90 degrees, and the distance between the part, in contact with the push plate, of the supporting rod and a vertical plane of the axis of the shaft pin is increased along with the increase of the distance between the supporting rod and the horizontal sliding pipe.

9. The steam generating method as claimed in claim 8, wherein a through groove extending in a vertical direction and penetrating through the stirring shaft in a horizontal direction is provided in the vertical stirring shaft, all the stirring paddles share one floating ball of the stirrer portion, the floating ball of the stirrer portion is fitted around the vertical rotating shaft, the floating ball of the stirrer portion is connected to a guy cable connecting rod inserted into the through groove, and the guy cable is connected to the guy cable connecting rod and connected to the floating ball of the stirrer portion.

10. The steam generating method according to claim 9, wherein a stay cable through hole is provided in the horizontal connecting rod, the stirring paddle is further provided with a fixed pulley connected with the vertical rotating shaft, the stay cable through hole is separated from the horizontal sliding cavity by a partition plate, the stay cable extends out of the hydraulic cavity through the partition plate and the stay cable through hole, then is supported on the fixed pulley for reversing and is connected with the stay cable connecting rod, and the stay cable and the partition plate are connected together in a sealing and sliding manner; when the inhaul cable is tensioned, the inhaul cable is disconnected with the hole wall of the inhaul cable through hole.