CN219014273U

CN219014273U - Steam generating device

Info

Publication number: CN219014273U
Application number: CN202223355960.9U
Authority: CN
Inventors: 贾帜伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-12
Anticipated expiration: 2032-12-14

Abstract

The utility model provides a steam generating device which comprises a shell, a plurality of heat exchange pieces, a burner, a water-steam separator and a water supply mechanism, wherein the heat exchange pieces are arranged on the shell; the utility model provides a steam generating device, which belongs to the technical field of steam preparation, and can increase heat exchange area, improve heating efficiency and accelerate steam generation speed.

Description

Steam generating device

Technical Field

The utility model relates to a steam generating device, and belongs to the technical field of steam preparation.

Background

The current mainstream inspection-free evaporation equipment is a steam generator, and the advantages of small volume, light weight, fast heat generation, low energy consumption, inspection-free performance and the like become development trend. However, the heat transfer coefficient of the existing steam generator is too low, the water volume is still larger, and the steam generator with the volume of 1 ton or more cannot really reach the standard of inspection-free; the steam generator has long time intervals for generating steam, and cannot meet the industry requiring instant steam supply.

CN213686761U discloses a split pressure-bearing preheating type steam generator, hot air enters from an air inlet of a hot air duct, a steam generating heat exchange tube group absorbs heat, steam is generated by vaporizing water from a pressure-bearing preheater and is sent out from a steam outlet tube, after the hot air passes through the steam generator, the air temperature can be reduced, but part of waste heat is also absorbed by the pressure-bearing preheating heat exchange tube group, the pressure water in the pressure-bearing preheater is heated, although the multi-stage utilization of heat energy is improved, and the efficiency of the hot air for heating the water in the heat exchange tube group for the first time is lower.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a steam generating device which can increase the heat exchange area, improve the heating efficiency and accelerate the steam generation speed.

The technical scheme for solving the technical problems is as follows: the steam generating device comprises a shell, a plurality of heat exchange pieces, a burner, a water-steam separator, a water supply mechanism and a controller, wherein the burner is arranged in the shell; the heat exchange piece comprises a heat exchange tube, an inner core, an elbow and a plurality of connecting pieces, wherein the inner core is coaxially arranged in the heat exchange tube, a heat exchange gap is formed between the heat exchange tube and the inner core, the plurality of connecting pieces are positioned in the heat exchange gap, one end of each connecting piece is fixed on the inner wall of the heat exchange tube, one end of each connecting piece is fixed on the outer wall of the inner core, the elbow and the heat exchange tube of the plurality of heat exchange pieces are sequentially communicated to form an S-shaped heat exchange assembly, and the plurality of heat exchange assemblies are arranged around the periphery of the combustor; the heat exchange water inlets of the heat exchange pipes at the head ends of the heat exchange assemblies are communicated with the water supply end of the water supply mechanism, the heat exchange pipes at the tail ends are communicated with the water-vapor separator to separate out steam, and the controller is electrically connected with the burner, the water-vapor separator and the water supply mechanism.

The beneficial effects of the utility model are as follows: the water enters the heat exchange gap, and the burner heats the water in the heat exchange gap, so that the thickness of the water layer is thinner and the heating effect is improved when the water quantity is the same as that of the annular gap formed by the inner core and the heat exchange tube; a small amount of water can quickly generate a large amount of steam, so that the water volume of the equipment is reduced, and the volume of the equipment is reduced; the heat exchange pipes are sequentially communicated with the bent pipes to form an S-shaped heat exchange assembly, so that a heating path and heating time are prolonged, a heat exchange area is increased, and a heating effect is improved; the plurality of heat exchange assemblies are arranged around the periphery of the burner, so that the utilization rate of heat released by the burner is improved, and the heating effect is improved; the water in the heat exchange tube is quickly heated and evaporated, and steam is separated by the water-steam separator, so that the steam is output from the steam outlet, and the steam can be generated in a short time; the steam separator can forcedly separate steam from water, remove water in the steam, integrate evaporation and drying, and greatly improve steam outlet efficiency; the controller controls the burner, the water-vapor separator and the water supply mechanism to cooperatively operate, so that the intellectualization is improved.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the inner core is a corrugated pipe, and two ends of the corrugated pipe are closed.

The beneficial effect of adopting the further scheme is that: the turbulence of water in the heat exchange gap is increased, the heat transfer effect is improved, and the evaporation of water is accelerated.

Further, the heat exchange piece further comprises a plurality of heat exchange plates, and the plurality of heat exchange plates are fixed on the outer wall of the heat exchange tube.

The beneficial effect of adopting the further scheme is that: the heat exchange surface area is increased, and the heat exchange effect is improved.

Further, still include back flow, evaporation booster pump and house steward, back flow upper end intercommunication vapour separator's play water end, the lower extreme with the one end intercommunication of house steward, the other end of house steward with a plurality of heat transfer water inlet intercommunication, evaporation booster pump installs on the house steward, evaporation booster pump with the controller electricity is connected.

The beneficial effect of adopting the further scheme is that: the high-temperature water separated by the water-vapor separator enters the heat exchange tube again through the return tube, so that heat loss is reduced, and the steam generation speed can be increased; the evaporation booster pump accelerates the flow velocity of water, improves the heat transfer effect.

Further, the water supply mechanism comprises a water tank and a water supply pump, the water supply end of the water tank is communicated with the return pipe through a water pipe, and the water supply pump is arranged on the water pipe and is electrically connected with the controller.

The beneficial effect of adopting the further scheme is that: the water in the water tank is supplied to the heat exchange tube by the water supply pump to supplement the water lost by evaporation.

Further, the device also comprises a cooler and a condenser, wherein the first input end of the cooler is communicated with the smoke outlet of the combustor, the first output end of the cooler is communicated with the first input end of the condenser, the second input end of the cooler is communicated with the outlet of the water tank, and the second output end of the cooler is communicated with the return pipe; the second input end of the condenser is communicated with the outlet of the water tank, the first output end of the condenser is communicated with the atmosphere, and the second output end of the condenser is communicated with the inlet of the water tank through a pipeline.

The beneficial effect of adopting the further scheme is that: the cooler can recover heat carried by flue gas generated by the burner, the temperature of water input into the return pipe in the water tank is increased, and when the water is fed into the heat exchange pipe, the water can be quickly heated and evaporated, so that the steam generation speed is increased; and the secondary heat recovery is carried out on the flue gas discharged by the cooler through the condenser, so that the temperature of water in the water tank is improved.

Further, the device also comprises a condensation circulating pump, wherein the condensation circulating pump is installed on the pipeline and is electrically connected with the controller.

Drawings

FIG. 1 is a schematic diagram of a distribution structure of a plurality of heat exchange assemblies in a steam generator according to the present utility model;

FIG. 2 is a schematic view of a partial longitudinal section of a steam generator according to the present utility model;

FIG. 3 is a cross-sectional view of a heat exchange member of a steam generator with an elbow removed;

fig. 4 is a schematic view of a heat exchange assembly in a steam generator according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1-shell, 2-heat exchange piece, 21-heat exchange pipe, 211-heat exchange water inlet, 22-inner core, 23-return pipe, 24-connecting piece, 25-heat exchange piece, 3-combustor, 4-vapor separator, 5-heat exchange clearance, 6-heat exchange subassembly, 7-back flow, 8-evaporation booster pump, 9-steam outlet, 10-protective housing, 11-condensation circulating pump, 12-condenser, 13-cooler.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

The utility model aims to provide a steam generating device which solves the problems existing in the prior art, can increase the heat exchange area, improve the heating efficiency and accelerate the steam generation speed.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

The utility model provides a steam generating device, in a specific embodiment of the utility model, as shown in figures 1-3, the steam generating device comprises a shell 1, a plurality of heat exchange pieces 2, a burner 3, a water-steam separator 4, a water supply mechanism and a controller, wherein the burner 3 is arranged in the shell 1; the heat exchange member 2 comprises a heat exchange tube 21, an inner core 22, an elbow 23 and a plurality of connecting pieces 24, wherein the inner core 22 is coaxially arranged in the heat exchange tube 21, a heat exchange gap 5 is formed between the heat exchange tube 21 and the inner core 22, the plurality of connecting pieces 24 are positioned in the heat exchange gap 5, one end of each connecting piece is fixed on the inner wall of the heat exchange tube 21, the other end of each connecting piece is fixed on the outer wall of the inner core 22, the elbow 23 of the plurality of heat exchange members 2 and the heat exchange tube 21 are sequentially communicated to form an S-shaped heat exchange assembly 13, the plurality of heat exchange assemblies 13 are arranged around the circumference of the combustor 3, a heat exchange water inlet 211 of the heat exchange tube 21 at the head end of the plurality of heat exchange assemblies 13 is communicated with the water supply end of the water supply mechanism, the heat exchange tubes 21 at the tail ends are communicated with the water-vapor separator 4 to separate steam, and the controller is electrically connected with the combustor 3, the water-vapor separator 4 and the water supply mechanism.

The utility model provides a steam generating device, water enters into a heat exchange gap 5, a burner 3 heats the water in the heat exchange gap 5, because the inner core 22 and the heat exchange tube 21 form an annular gap, and when the water quantity is the same, compared with the condition without the inner core 22, the thickness of a water layer is thinner, so that the heating effect is improved; a small amount of water can quickly generate a large amount of steam, so that the water volume of the equipment is reduced, and the volume of the equipment is reduced; the heat exchange tubes 21 are sequentially communicated with the bent tubes 23 to form the S-shaped heat exchange assembly 13, so that a heating path and heating time are prolonged, a heat exchange area is increased, and a heating effect is improved; the plurality of heat exchange assemblies 13 are arranged around the periphery of the burner, so that the utilization rate of heat released by the burner 3 is improved, and the heating effect is improved; the water in the heat exchange tube 21 is quickly heated and evaporated, and steam is separated by the water-steam separator 4, so that the steam is output from the steam outlet 9, and the steam can be generated in a short time; the steam separator 4 can forcedly separate steam from water, remove water in the steam, integrate evaporation and drying, and greatly improve steam outlet efficiency; the controller controls the burner 3, the water-vapor separator 4 and the water supply mechanism to cooperatively operate, so that the intellectualization is improved.

Preferably, the heat exchange assembly 6 has a fan-shaped cross section as a whole, and a plurality of heat exchange assemblies 6 may be enclosed in a cylindrical shape around the circumference of the burner 3.

Preferably, the number of heat exchange members 2 in the heat exchange assembly 6 increases layer by layer in a radial direction away from the burner 3.

Preferably, the heat exchange gap is 4-6 mm.

In one embodiment of the present utility model, the inner core 22 is a bellows, the ends of which are closed.

The turbulence of water in the heat exchange gap 5 is increased, the heat transfer effect is improved, and the evaporation of water is accelerated.

In an embodiment of the present utility model, the heat exchange member 2 further includes a plurality of heat exchange fins 25, and the plurality of heat exchange fins 25 are fixed to the outer wall of the heat exchange tube 21.

The heat exchange surface area is increased, and the heat exchange effect is improved.

Preferably, the heat exchanger plates are prior art fins.

In a specific embodiment of the utility model, the water vapor separator further comprises a return pipe 7, an evaporation booster pump 8 and a main pipe, wherein the upper end of the return pipe 7 is communicated with the water outlet end of the water vapor separator 4, the lower end of the return pipe is communicated with one end of the main pipe, the other end of the main pipe is communicated with a plurality of heat exchange water inlets 211, the evaporation booster pump 8 is arranged on the main pipe, and the evaporation booster pump 8 is electrically connected with the controller.

The high-temperature water separated by the water-vapor separator 4 enters the heat exchange tube 21 again through the return tube 7, so that the heat loss is reduced, and the steam generation speed can be increased; the evaporation booster pump 8 accelerates the flow rate of water and improves the heat exchange effect.

In one embodiment of the utility model, the water supply mechanism comprises a water tank and a water supply pump, wherein the water supply end of the water tank is communicated with the return pipe 7 through a water pipe, and the water supply pump is arranged on the water pipe and is electrically connected with the controller.

The water in the water tank is supplied to the heat exchange tube 21 by the water feed pump, and the water lost by evaporation is replenished.

In a specific embodiment of the present utility model, the air conditioner further comprises a cooler 13 and a condenser 12, wherein a first input end of the cooler 13 is communicated with the smoke outlet of the combustor 3, a first output end of the cooler 13 is communicated with a first input end of the condenser 12, a second input end of the cooler 13 is communicated with the outlet of the water tank, and a second output end of the cooler 13 is communicated with the return pipe 7; the second input end of the condenser 12 is communicated with the outlet of the water tank, the first output end of the condenser 12 is communicated with the atmosphere, and the second output end of the condenser 12 is communicated with the inlet of the water tank through a pipeline.

The cooler 13 can recover heat carried by flue gas generated by the combustor 3, so that the temperature of water input into the return pipe in the water tank is increased, and when the water is fed into the heat exchange pipe 21, the water can be quickly heated and evaporated, so that the steam generation speed is increased; the secondary heat recovery is carried out on the flue gas discharged by the cooler 13 through the condenser 12, so that the temperature of water in the water tank is increased.

In one embodiment of the utility model, the device further comprises a condensation circulating pump, wherein the condensation circulating pump is arranged on the pipeline and is electrically connected with the controller.

Preferably, the water supply device further comprises a protective shell 10, wherein the protective shell 10 is wrapped outside the shell 1, and the return pipe 7, the evaporation booster pump 8, the condensation circulating pump 11, the cooler 13 and the condenser 12 are positioned between the protective shell and the shell, and the water supply pump is positioned outside the protective shell 10.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The steam generating device is characterized by comprising a shell (1), a plurality of heat exchange pieces (2), a burner (3), a water-steam separator (4), a water supply mechanism and a controller, wherein the burner (3) is arranged in the shell (1);

the utility model provides a water vapor separator, including heat exchange member (2), including heat exchange tube (21), inner core (22), return bend (23), a plurality of connecting piece (24), inner core (22) coaxial arrangement is in heat exchange tube (21), heat exchange tube (21) with form heat transfer clearance (5) between inner core (22), a plurality of connecting piece (24) are located in heat transfer clearance (5) and one end is fixed heat exchange tube (21) inner wall, one end is fixed inner core (22) outer wall, a plurality of return bend (23) of heat exchange member (2) with heat exchange tube (21) communicate in proper order and form heat exchange component (6) that S-shaped was arranged, a plurality of heat exchange component (6) are encircleed combustor (3) week side is arranged, a plurality of heat exchange water inlet (211) of heat exchange component (6) head end heat exchange tube (21) with water supply mechanism' S water supply end intercommunication, a plurality of terminal heat exchange tube (21) with separator (4) intercommunication in order to separate steam, controller with combustor (3), separator (4) and water vapor separator (4) are connected.

2. A steam generator according to claim 1, wherein the inner core (22) is a corrugated tube, the ends of the corrugated tube being closed.

3. A steam generator according to claim 1, characterized in that the heat exchanger (2) further comprises a plurality of heat exchanger plates (25), a plurality of the heat exchanger plates (25) being fixed to the outer wall of the heat exchanger tube (21).

4. The steam generating device according to claim 1, further comprising a return pipe (7), an evaporation booster pump (8) and a main pipe, wherein the upper end of the return pipe (7) is communicated with the water outlet end of the water-vapor separator (4), the lower end of the return pipe is communicated with one end of the main pipe, the other end of the main pipe is communicated with a plurality of heat exchange water inlets (211), the evaporation booster pump (8) is installed on the main pipe, and the evaporation booster pump (8) is electrically connected with the controller.

5. A steam generating device according to claim 4, characterized in that the water supply means comprises a water tank and a feed pump, the water supply end of the water tank being in communication with the return pipe (7) via a water pipe, the feed pump being mounted on the water pipe and being electrically connected to the controller.

6. A steam generating device according to claim 5, further comprising a cooler (13) and a condenser (12), a first input of the cooler (13) being in communication with the exhaust port of the burner (3), a first output of the cooler (13) being in communication with the first input of the condenser (12), a second input of the cooler (13) being in communication with the outlet of the water tank, a second output of the cooler (13) being in communication with the return pipe (7); the second input end of the condenser (12) is communicated with the outlet of the water tank, the first output end of the condenser (12) is communicated with the atmosphere, and the second output end of the condenser (12) is communicated with the inlet of the water tank through a pipeline.

7. A steam generating device according to claim 6, further comprising a condensation circulation pump (11), said condensation circulation pump (11) being mounted on said pipe and being electrically connected to said controller.