CN220269345U

CN220269345U - Coil pipe steam generator with self-circulation

Info

Publication number: CN220269345U
Application number: CN202321723247.7U
Authority: CN
Inventors: 廖晓林
Original assignee: Foshan Shunde Qianye Electric Appliance Co ltd
Current assignee: Foshan Shunde Qianye Electric Appliance Co ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2023-12-29
Anticipated expiration: 2033-07-04

Abstract

The utility model discloses a self-circulation coil steam generator which comprises a combustion chamber, wherein a combustion head, a heat exchanger and a condenser are arranged in the combustion chamber, the heat exchanger is a spiral coil, two adjacent layers of coils are in tangential fit, a filling rod is arranged in the heat exchanger, a water flow channel is arranged between the filling rod and the inner cavity wall of the heat exchanger, the combustion head is arranged in the spiral coil of the heat exchanger, a steam outlet of the heat exchanger is connected with a water-steam separator, and a water inlet of the heat exchanger is connected with a water supply system. The self-circulation coil pipe steam generator provided by the utility model has the advantages of small water volume, high safety, fast heat transfer and higher heat efficiency.

Description

Coil pipe steam generator with self-circulation

Technical Field

The utility model relates to the technical field of steam generators, in particular to a coil pipe steam generator with self-circulation.

Background

Steam generators, also known as steam heat source machines (commonly known as boilers), are mechanical devices that utilize the thermal energy of fuel or other energy sources to heat water into hot water or steam. The steam generator is mainly classified according to fuel, and can be classified into an electromagnetic steam generator, an electric steam generator, a fuel gas steam generator, and the like. The steam generator is mainly suitable for places such as clothing factories, dry cleaning shops, restaurants, steamed bread shops, canteens, restaurants, factories and mines, bean products factories and the like.

The utility model patent CN215061970U (bulletin day 2021.12.07) discloses a coil structure rapid steam generation system, which comprises a water supply system, wherein a water inlet of the water supply system is communicated with external tap water, a water outlet of the water supply system is communicated with a cold water inlet of a heat exchanger, a steam-water mixture outlet of the heat exchanger is communicated with an inlet of a steam-water separator, a steam outlet of the steam-water separator is communicated with an external steam point, and a saturated water outlet of the steam-water separator is communicated with a heat source inlet of the water supply system; the heat exchanger comprises a coil body and a condenser, wherein the coil body is formed by connecting a plurality of layers of mosquito-repellent incense-shaped flat coils and spiral spring-shaped coils in series, the condenser is a plurality of layers of mosquito-repellent incense-shaped flat coils, a cold water inlet is formed in the head of the mosquito-repellent incense-shaped flat coils of the condenser, a water outlet of the condenser is connected with a water inlet of the mosquito-repellent incense-shaped flat coils of the coil body, a steam-water mixture outlet is formed in the tail of the spiral spring-shaped coils of the coil body, and the condenser is positioned at the tail of high-temperature flue gas.

The steam generator in the prior art has larger water volume and low safety, and the heat efficiency of coil design needs to be further improved.

Disclosure of Invention

In order to make up the defects in the prior art, the utility model provides the coil steam generator with the self-circulation function, which has the advantages of small water volume, high safety, quick heat transfer and higher heat efficiency.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a take self-loopa's coil pipe steam generator, includes the combustion chamber, be equipped with combustion head, heat exchanger and condenser in the combustion chamber, the heat exchanger is spiral coil pipe, and tangent laminating of adjacent two-layer coil pipe, be equipped with the filling rod in the heat exchanger, the filling rod with have the rivers passageway between the heat exchanger inner chamber wall, the combustion head is located in the helicoidal of heat exchanger, the steam outlet connection steam separator of heat exchanger, water supply system is connected to the water inlet of heat exchanger.

Further, the water supply system comprises a water inlet pipeline, a heat pump and a water return pipeline, wherein the water inlet pipeline is connected with the water inlet end of the heat pump, one end of the water return pipeline is connected with the water inlet end of the heat pump, the other end of the water return pipeline is connected with the water outlet end of the water-vapor separator, and the water outlet end of the heat pump is connected with the water inlet of the heat exchanger.

Further, a water inlet electromagnetic valve is arranged on the water inlet pipeline, and a water flow switch is arranged on the water outlet pipeline of the heat pump.

Further, the condenser is a multi-layer vortex-shaped coil pipe, the coils of each layer of adjacent circles are in tangential fit, and the coils of the adjacent two layers are also in tangential fit.

Further, the top of the combustion chamber is provided with a combustion head mounting port, the bottom of the combustion chamber is provided with a smoke outlet, the combustion head mounting port is provided with a fan, the heat exchanger is arranged at the upwind direction, and the condenser is arranged at the downwind direction.

Further, the inner wall of the combustion chamber is provided with a heat insulation layer.

Further, a check valve is connected to the smoke outlet.

Further, an ignition needle is arranged in the combustion chamber, the combustion head is connected with a gas pipe, and a gas valve is arranged on the gas pipe.

Further, the filling rod and the heat exchanger are coaxially arranged, and a plurality of retainers are arranged on the filling rod.

Further, the retainer comprises a fixing ring sleeved outside the filling rod and protruding blocks uniformly distributed on the periphery of the fixing ring.

Compared with the prior art, the utility model has the following beneficial technical effects:

according to the circulating coil pipe steam generator, the heat exchanger is spiral, coils of each layer and adjacent layers are attached, heat of a combustion head can be fully absorbed, heat transfer is fast, and heat efficiency is effectively improved; meanwhile, the filling rod is arranged in the heat exchanger, so that the water volume is reduced under the same pipe diameter, and the safety is higher.

Drawings

FIG. 1 is a block diagram of a self-circulating coil steam generator according to the present utility model.

FIG. 2 is a cross-sectional view of a combustion chamber of the present utility model.

Fig. 3 is a structural view of the heat exchanger of the present utility model.

Fig. 4 is a cross-sectional view of a heat exchanger of the present utility model.

FIG. 5 is a block diagram of a filler rod of the present utility model.

Fig. 6 is a structural view of the condenser of the present utility model.

Wherein: 1. a combustion chamber; 101. a smoke outlet; 102. a thermal insulation layer; 2. a heat exchanger; 201. a base pipe; 202. a first fin; 203. a filling rod; 204. a retainer; 2041. a fixing ring; 2042. a bump; 205. a steam outlet; 206. a heat exchanger water inlet; 3. a condenser; 301. an inner tube; 302. a second fin; 303. a condenser water inlet; 304. a condenser water outlet; 4. a flange; 5. a combustion head; 6. an ignition needle; 7. a blower; 8. a gas valve; 9. a gas pipe; 10. a water-vapor separator; 11. a steam pipe; 12. a water inlet pipe; 13. a heat pump; 14. a water return pipe; 15. a water inlet electromagnetic valve; 16. a water flow switch; 17. a check valve; 18. a condensed water inlet pipe; 19. and a condensed water outlet pipe.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly practiced by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.

Example 1

As shown in fig. 1-6, a self-circulation coil steam generator comprises a combustion chamber 1, wherein a combustion head mounting port is formed in the top of the combustion chamber 1, and a smoke outlet 101 is formed in the bottom of the combustion chamber. The combustion chamber 1 is internally provided with a heat exchanger 2 and a condenser 3 from top to bottom.

The heat exchanger 2 is a spiral coil pipe, the adopted material is 316 stainless steel, the spiral turns are 8 turns, the diameter is 44mm, the pitch is 44mm, and the spiral turns of two adjacent layers are in tangent fit. The spiral coil comprises a base pipe 201 and a first fin 202 sleeved outside the base pipe 201, wherein the outer diameter of the base pipe 201 is 30mm, and the wall thickness is 3mm.

A filling rod 203 is concentrically arranged in the base pipe 201, and a water flow channel is arranged between the filling rod 203 and the inner wall of the base pipe 201. The filling rod 203 is sleeved with a plurality of retainers 204 so that the filling rod 203 is held in the center of the base pipe 201. The retainer 204 includes a fixed ring 2041 and three projections 2042, the three projections 2042 being uniformly disposed on the outer periphery of the fixed ring 2041.

The condenser 3 is a four-layer vortex coil. The coils of each layer of adjacent circles are in tangent fit, the coil number is 4.25, and the screw pitch is 32mm. The coils of two adjacent layers are also in tangential fit, and the layer spacing is 32mm. Based on the structure, the whole finned tube is attached, and the condensation efficiency can be improved.

The condenser 3 is made of ND steel and is of a sleeve structure, and comprises an inner tube 301 and a second fin 302 sleeved outside the inner tube 301. The outer diameter of the inner tube 301 is 22mm, the wall thickness is 2mm, and the wall thickness of the second fin 302 is 5mm.

The combustion head mounting port is detachably connected with a flange 4, the bottom of the flange 4 is connected with a combustion head 5, and the combustion head 5 is inserted into the spiral ring of the heat exchanger 2. The detachable construction facilitates maintenance of the burner head 5. The top of the combustion chamber 1 is also provided with an ignition needle 6 inserted into the spiral coil of the heat exchanger 2 for igniting the combustion head. A fan 7 is connected to the top of the flange 4 for supplying air into the combustion chamber 1. The combustion head 5 is connected with a gas pipe 9 through a gas valve 8.

The water-vapor separator 10 is arranged outside the combustion chamber 1. The steam outlet 205 of the heat exchanger 2 is connected with the input end of the water-steam separator 10, the steam which does not contain moisture is separated by the action of the water-steam separator 10, and the steam is conveyed to a steam using position through the steam pipeline 11.

The heat exchanger water inlet 206 is connected to a water supply. The water supply system comprises a water inlet pipe 12, a heat pump 13 and a water return pipe 14. The water inlet pipe 12 is connected with the water inlet end of the heat pump 13, one end of the water return pipe 14 is connected with the water inlet end of the heat pump 13, the other end is connected with the water outlet end of the water-vapor separator 10, and the water outlet end of the heat pump 13 is connected with the water inlet 206 of the heat exchanger.

The water inlet pipe 12 is provided with a water inlet electromagnetic valve 15, and the water outlet pipe of the heat pump 13 is provided with a water flow switch 16. The water inflow of the heat exchanger 2 is monitored through the water flow switch 16, a real-time water level signal can be monitored through a probe on the water-steam separator 10, and the water inflow electromagnetic valve 15 is opened or closed timely, so that the water flow in the heat exchanger 2 is stable, and the steam output is stable.

The inner wall of the combustion chamber 1 is provided with the heat insulation layer 102, so that heat dissipation can be reduced, and steam outlet efficiency can be improved. The smoke outlet 101 is connected with a check valve 17, so that the air from the outside can be prevented from flowing back into the combustion chamber 1.

The condenser water inlet 303 is connected with the condensate water inlet pipe 18, and the condensate water inlet pipe 18 is connected with the pure water tank. The condenser water outlet 304 is connected with the condensed water outlet pipe 19, the condensed water outlet pipe 19 is connected with the pure water tank, and the flue gas heat is input into the pure water tank through the condensed water outlet pipe 19, so that the flue gas heat is reused, the heat discharged by the flue gas is greatly reduced, and the aim of improving the heat efficiency is fulfilled.

Although the present utility model has been described in detail with reference to the embodiments, it should be understood that the utility model is not limited to the preferred embodiments, but is capable of modification and equivalents to some of the features described in the foregoing embodiments, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A coiled pipe steam generator with self-circulation, characterized in that: the heat exchanger comprises a combustion chamber, wherein a combustion head, a heat exchanger and a condenser are arranged in the combustion chamber, the heat exchanger is a spiral coil, two adjacent layers of coils are in tangent fit, a filling rod is arranged in the heat exchanger, a water flow channel is arranged between the filling rod and the inner cavity wall of the heat exchanger, the combustion head is arranged in the spiral coil of the heat exchanger, a steam outlet of the heat exchanger is connected with a water-steam separator, and a water inlet of the heat exchanger is connected with a water supply system.

2. The self-circulating coil steam generator of claim 1, wherein: the water supply system comprises a water inlet pipeline, a heat pump and a water return pipeline, wherein the water inlet pipeline is connected with the water inlet end of the heat pump, one end of the water return pipeline is connected with the water inlet end of the heat pump, the other end of the water return pipeline is connected with the water outlet end of the water-vapor separator, and the water outlet end of the heat pump is connected with the water inlet of the heat exchanger.

3. The self-circulating coil steam generator of claim 2, wherein: the water inlet pipeline is provided with a water inlet electromagnetic valve, and the water outlet pipeline of the heat pump is provided with a water flow switch.

4. A self-circulating coil steam generator according to any one of claims 1 to 3, wherein: the condenser is a multi-layer vortex-shaped coil pipe, the coils of each layer of adjacent circles are in tangential fit, and the coils of the adjacent two layers are also in tangential fit.

5. The self-circulating coil steam generator of claim 4, wherein: the top of the combustion chamber is provided with a combustion head mounting port, the bottom of the combustion chamber is provided with a smoke outlet, the combustion head mounting port is provided with a fan, the heat exchanger is arranged at the upwind direction, and the condenser is arranged at the downwind direction.

6. The self-circulating coil steam generator of claim 5, wherein: the inner wall of the combustion chamber is provided with a heat insulation layer.

7. The self-circulating coil steam generator of claim 6, wherein: and the smoke outlet is connected with a check valve.

8. The self-circulating coil steam generator of claim 7, wherein: the combustion chamber is internally provided with an ignition needle, the combustion head is connected with a gas pipe, and the gas pipe is provided with a gas valve.

9. A self-circulating coil steam generator according to any one of claims 1 to 3, wherein: the filling rod and the heat exchanger are coaxially arranged, and a plurality of retainers are arranged on the filling rod.

10. The self-circulating coil steam generator of claim 9, wherein: the retainer comprises a fixed ring sleeved outside the filling rod and protruding blocks uniformly distributed on the periphery of the fixed ring.