CN202598820U

CN202598820U - Methane hot water boiler

Info

Publication number: CN202598820U
Application number: CN 201220246081
Authority: CN
Inventors: 史建明; 高树建
Original assignee: WEIFANG MINGSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Current assignee: Mingshuo Environmental Technology Group Co Ltd
Priority date: 2012-05-29
Filing date: 2012-05-29
Publication date: 2012-12-12
Anticipated expiration: 2022-05-29

Abstract

The utility model relates to a methane hot water boiler, which comprises a boiler body and a hearth, wherein a water outlet pipe is arranged at the top end of the boiler body; a water return pipe and a sewage draining pipe are arranged at the bottom end of the boiler body; a methane combustion engine is mounted on one side of the boiler body; a combustion chamber communicated with an outlet of the methane combustion engine is formed in the hearth; the upper part of the combustion chamber is communicated with a plurality of smoke discharging heat exchanging tubes; the other ends of the smoke discharging heat exchanging tubes are communicated with the interior of a chimney; an expansion water tank communicated with the hearth and capable of supplementing water through a water feeding pump is arranged at the top end of the boiler body; an electronic liquid level meter is mounted on the expansion water tank; a temperature sensor is mounted on the water outlet pipe; the electronic liquid level meter and the temperature sensor are electrically connected onto a controller; and an automatic ignition control end of the methane combustion engine and a control end of the water feeding pump are further electrically connected onto the controller. Through the adoption of the methane hot water boiler provided by the utility model, heat supply can be performed to the production and life through the utilization of the heat produced by combusting methane; energy consumption is saved; and the whole boiler has the advantages of simple structure, high heat exchanging efficiency, convenience for operation and safety and reliability to use.

Description

A kind of biogas hot-water boiler

Technical field

The utility model relates to a kind of biogas hot-water boiler.

Background technology

Production and use of marsh gas engineering, livestock breeding industry biogas engineering are popularized gradually, produced a large amount of biogas, have both solved the environmental pollution that ight soil etc. causes, and can produce a large amount of available clean energy resourcies again.But because the factor of created gase temperature influence of biogas is very big, under the situation that temperature is very low especially in the winter time, factor of created gase is very low, can occur when serious can't aerogenesis phenomenon.Meanwhile, the heating in winter also consumes a large amount of coal equal energy sources.

In addition, a large amount of biogas of sewage work by-product, the biogas of by-product is not utilized in a lot of sewage treatment projects, directly applies a torch and has burnt, and has caused the very big wasting of resources.When a large amount of biogas was wasted, the anaerobic fermentation operation in the sewage disposal required certain temperature could COD of sewage be dropped in the scope of national regulation, needed to consume other a large amount of energy and came heat supply.

The utility model content

The technical problem that the utility model will solve provides a kind of biogas hot-water boiler that utilizes biogas burning heat production; This boiler can carry out heat supply and heating to production and life; Avoid the waste of biogas, energy savings consumption and simple in structure, heat exchange efficiency is high, has solved the difficult problem of biogas utilization.

For solving the problems of the technologies described above, the biogas hot-water boiler of the utility model comprises body of heater and furnace chamber, and its design feature is that said body of heater top is provided with the outlet pipe that is communicated with furnace chamber, and the body of heater bottom is provided with return pipe and the blow-off pipe that is communicated with furnace chamber; Body of heater one side is equipped with the biogas combustor that is passed in the furnace chamber; Be provided with the combustion chamber that is communicated with the outlet of biogas combustor in the furnace chamber; The top of combustion chamber is communicated with many smoke evacuation heat exchanger tubes, and the other end of smoke evacuation heat exchanger tube is communicated to one and is installed in the chimney on body of heater top; The body of heater top also is provided with the expansion tank that is communicated with and can carries out through feed pump moisturizing with furnace chamber.

The electronic level meter is installed on the said expansion tank; Temperature sensor is installed on the outlet pipe; The signal output part of electronic level meter and temperature sensor is electrically connected with the signal input part of a controller, and the signal output part of controller is electrically connected with the automatic IGNITION CONTROL end of biogas combustor and the control end of feed pump respectively.

The inner extending end of said chimney is communicated with fume collecting chamber, and many smoke evacuation heat exchanger tubes are communicated with fume collecting chamber, and fume collecting chamber offers cleaning door, and shoot door is installed on the cleaning door.

Said combustion chamber offers the venting of pass-out body of heater in a side relative with the outlet of biogas combustor, and vent panel is installed on the venting.

The periphery of stating body of heater is enclosed with heat-insulation layer, and heat-insulation layer adopts the heat preservation rock encased steel plate.

The beneficial effect of the utility model is: dress water in the furnace chamber; Outlet pipe and return pipe can be communicated to production respectively or live with the two ends of heat exchange circulation line; With biogas fully burning in the combustion chamber, the heat that burning produces is with the heating of the water in the furnace chamber through the biogas combustor, and hot water enters into production through outlet pipe or the heat exchange circulation line is used in life; Water after the heat exchange flow back into through return pipe and continues heating in the furnace chamber, has realized that biogas burning heat production is the function that productive life provides heat; Blow-off pipe is used for impurity or the incrustation scale of timely discharge water etc., ensures that water cleaning and pipeline are unimpeded; Expansion tank is used for to the hot water in the boiler expansion space being provided, and also can give boiler replenishing water through feed pump; A plurality of smoke evacuation heat exchanger tubes are set fully absorb the heat that carries in the flue gas and be used to heat the water in the furnace chamber, improved heat transfer rate; The electronic level meter is monitored the water level in the expansion tank at any time; Send signal under the water level in limited time to controller when being lower than; Controller control is opened feed pump to water on the expansion tank; When reaching on the water level in limited time, the electronic level meter send signal to controller control close feed pump, realize boiler automatic water supplement function; Temperature sensor is in time monitored the temperature of hot water in the furnace chamber, when reaching temperature upper limit, sends signal and closes the biogas combustor to controller, stops heating, avoids the too high generation steam of water temperature to jeopardize security of operation; The setting of fume collecting chamber can make things convenient for clears up the cigarette ash that biogas burning back produces at any time, and the discharging that can alleviate flue dust can avoid flue to stop up again; The setting of venting and vent panel can be avoided the excessive generation blast of boiler internal pressure, has improved safety in utilization; Heat-insulation layer has avoided heat to scatter and disappear, and improves heat utilization ratio.The biogas hot-water boiler of the utility model utilizes biogas burning heat production to producing and heat supply and heating are carried out in life, avoids the waste of biogas, energy savings consumption and the whole cooker furnace structure is simple, heat exchange efficiency is high, easy to operate, safe and reliable.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain:

Fig. 1 is the structural representation of the utility model.

The specific embodiment

Arrow among Fig. 1 has indicated the flue gas and the heat flow direction of biogas burning.

With reference to Fig. 1; A kind of embodiment of the biogas hot-water boiler of the utility model is for comprising body of heater 1; Body of heater 1 adopts horizontal type structure, and body of heater 1 bottom is provided with bearing 21, establishes furnace chamber 2 in the body of heater 1; Body of heater 1 top is provided with the outlet pipe 3 that is communicated with furnace chamber 2, and body of heater 1 bottom is provided with the return pipe 4 and blow-off pipe 5 that is communicated with furnace chamber 2.Body of heater 1 one sides are equipped with the biogas combustor 6 that is passed in the furnace chamber 2; Be provided with the combustion chamber 7 that is communicated with the outlet of biogas combustor 6 in the furnace chamber 2; The top of combustion chamber 7 is communicated with many smoke evacuation heat exchanger tubes 8, and the other end of smoke evacuation heat exchanger tube 8 is communicated to one and is installed in the chimney 9 on body of heater 1 top.Body of heater 1 top also is provided with the expansion tank 11 that is communicated with and can carries out through feed pump 10 moisturizing with furnace chamber 2; As shown in Figure 1; Feed pump 10 is installed on the water pipe to expansion tank 11 moisturizings; The other end of water pipe is communicated in the softened water tank 20, gives boiler replenishing water thereby feed pump 10 can pump into the water in the softened water tank 20 expansion tank 11.Wherein, air inlet pipe assembly such as biogas combustor 6 configuration pressure valve, air inlet ball valve, screen pack also disposes the spark arrester anti-backfire, and the structure of above biogas combustor 6 is configured to prior art, repeats no more at this.Combustion chamber 7 can adopt the welding of Q235B carbon steel sheet to make, and smoke evacuation heat exchanger tube 8 adopts the manufacturing of GB8163 seamless steel pipe.During boiler operatiopn; Dress water in the furnace chamber 2; Outlet pipe 3 can be communicated to production respectively with return pipe 4 or live with the two ends of heat exchange circulation line, and with biogas abundant burning in combustion chamber 7, the heat of burning generation heats furnace chamber 2 interior water through biogas combustor 6; Hot water enters into to produce or live through outlet pipe 3 and circulates with heat exchange, and the water after the heat exchange flow back into through return pipe 4 and continues heating in the furnace chamber 2.

As shown in Figure 1; Electronic level meter 12 is installed on the expansion tank 11; Temperature sensor 13 is installed on the outlet pipe 3; The signal output part of electronic level meter 12 and temperature sensor 13 is electrically connected with the signal input part of a controller 14, and the signal output part of controller 14 is electrically connected with the automatic IGNITION CONTROL end of biogas combustor 6 and the control end of feed pump 10 respectively.Biogas combustor 6 has automatic IGNITION CONTROL end, can light a fire automatically through the signal of controller 14.Feed pump 10 adopts automatically controlled pump, can pass through its opening and closing of signal controlling.Electronic level meter 12 is used to monitor the water level in the expansion tank 11; Send signal under the water level in limited time to controller 14 when being lower than; Controller 14 controls are opened feed pump 10 and are given water on the expansion tank 11; Prescribe a time limit when reaching on the water level, electronic level meter 12 sends signal and cuts out feed pump 10 for controller 14 controls.Temperature sensor 13 is used to monitor the temperature of outlet pipe 3 place's hot water, when reaching temperature upper limit, sends signal and closes biogas combustor 6 for controller 14, stops heating, avoids the too high generation steam of water temperature crisis security of operation.Wherein, the control circuit of the inside of above-mentioned controller 14 is a prior art, repeats no more at this, and in addition, a kind of preferred controller 14 adopts the PLC controller.

As shown in Figure 1, the inner extending end of chimney 9 is communicated with fume collecting chamber 15, and many smoke evacuation heat exchanger tubes 8 are communicated with fume collecting chamber 15, and fume collecting chamber 15 offers cleaning door, and shoot door 16 is installed on the cleaning door.Fume collecting chamber 15 is used to collect the cigarette ash that the biogas burning produces, and the cigarette ash that can open at any time in 16 pairs of fume collecting chamber of shoot door 15 is cleared up.

As shown in Figure 1, combustion chamber 7 offers the venting 17 of pass-out body of heater 1 in a side relative with the outlet of biogas combustor 6, and vent panel 18 is installed on the venting 17.Venting 17 is opened in the higher relatively side of pressure in the combustion chamber, and when the biogas generation detonation in the combustion chamber 7, impulsive force can be washed vent panel 18 open, thereby reduces the pressure in the combustion chamber 7, avoids taking place bursting of boilers phenomenon.

As shown in Figure 1, the periphery of body of heater 1 is enclosed with heat-insulation layer 19, and heat-insulation layer 19 adopts the heat preservation rock encased steel plate.The effect of heat-insulation layer 19 is to reduce heat to scatter and disappear, and adopts the external steel plate parcel of heat preservation rock, and effective, cost is low.

Claims

1. biogas hot-water boiler; Comprise body of heater (1) and furnace chamber (2); It is characterized in that said body of heater (1) top is provided with the outlet pipe (3) that is communicated with furnace chamber (2), body of heater (1) bottom is provided with return pipe (4) and the blow-off pipe (5) that is communicated with furnace chamber (2); Body of heater (1) one side is equipped with the biogas combustor (6) that is passed in the furnace chamber (2); Be provided with the combustion chamber (7) that is communicated with the outlet of biogas combustor (6) in the furnace chamber (2); The top of combustion chamber (7) is communicated with many smoke evacuation heat exchanger tubes (8), and the other end of smoke evacuation heat exchanger tube (8) is communicated to one and is installed in the chimney (9) on body of heater (1) top; Body of heater (1) top also is provided with the expansion tank (11) that is communicated with and can carries out through feed pump (10) moisturizing with furnace chamber (2).

2. biogas hot-water boiler as claimed in claim 1; It is characterized in that being equipped with on the said expansion tank (11) electronic level meter (12); Temperature sensor (13) is installed on the outlet pipe (3); The signal output part of electronic level meter (12) and temperature sensor (13) is electrically connected with the signal input part of a controller (14), and the signal output part of this controller (14) is electrically connected with the automatic IGNITION CONTROL end of biogas combustor (6) and the control end of feed pump (10) respectively.

3. according to claim 1 or claim 2 biogas hot-water boiler; The inner extending end that it is characterized in that said chimney (9) is communicated with fume collecting chamber (15); Many smoke evacuation heat exchanger tubes (8) are communicated with fume collecting chamber (15), and fume collecting chamber (15) offers cleaning door, and shoot door (16) is installed on the cleaning door.

4. according to claim 1 or claim 2 biogas hot-water boiler; It is characterized in that said combustion chamber (7) offers the venting (17) of pass-out body of heater (1) in a side relative with the outlet of biogas combustor (6), venting (17) is gone up vent panel (18) is installed.

5. according to claim 1 or claim 2 biogas hot-water boiler is characterized in that the periphery of said body of heater (1) is enclosed with heat-insulation layer (19), and heat-insulation layer (19) adopts the heat preservation rock encased steel plate.