CN200993434Y

CN200993434Y - Coal-fired low temperature steam superconducting heating system

Info

Publication number: CN200993434Y
Application number: CN 200620121952
Authority: CN
Inventors: 闫怀林
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-28
Filing date: 2006-06-28
Publication date: 2007-12-19
Anticipated expiration: 2016-06-28

Abstract

The utility model provides a coal-fired low temperature steam super-conductive heating system, and pertains to the technical field of thermal power engineering. The utility model is provided to solve the following technical problem: transfer the thermal power produced in coal burning to the rooms at a very high efficiency, so as to attain the expected temperature in the rooms. In order to solve the technical problem, the utility model employs the following technical scheme: install a rotary coal burner (13), a push-and-pull type coal burner (14), and an evaporator (18) in a insulated cabinet, to built up a coal burner/evaporator assembly (18), wherein, the thermal power produced from the two coal burners heats the working fluid in the evaporator to produce low temperature steam, which is transferred through a low temperature steam pipe (45) and low temperature steam branch pipes (46) to the radiators (7) and (8) that can be adjusted intuitively in the room; the low temperature steam releases heat and condensates in the radiators into working fluid, which flows back through the condensate branch pipes (47) and condensate main pipe (48) to the condensate inlet pipe (15) of the evaporator, and then is heated and evaporates again; in that way, the circulation continues, and the heat is transferred to the room continuously. The utility model is mainly applied for room heating.

Description

Fire coal Low Temperature Steam superconducting heating system

Affiliated technical field

Technical field is under the utility model: Thermal Power Engineering.

Background technology

At present, along with the raising of people to living environment and residence comfort requirement, cold winter, the family that fails to realize city central heating and regional boiler heating in the vast town and country of China, consider economy and practicality, there are a lot of families progressively to replace original stove in the past with the heating form of coal-fired naturally circulated hot water heating (being native heating installation), the heating form of wall with flues, although, coal-fired naturally circulated hot water heating system (native heating installation) and original stove, it is a very much progress that the wall with flues heating is compared, but, need further research and solve because home-use coal-fired naturally circulated hot water heating system also exists more following problems and shortcoming.

1. be example with the normal a kind of honeycomb briquette heating stove that adopts of family, no matter be fire suppressed type or back-fire type, normally the heating water jacket of hot water system is arranged in the heating stove combustion chamber around, when adding fire coal, at first open bell often, add from the top of stove, so just exist two problems: a) in honeycomb briquette when burning, generally speaking, flame is all walked up, must directly burn bell with regard to some flame or high-temperature flue gas like this, and bell just can lose heat greatly.B) since water jacket be arranged in combustion chamber around, inevitable also can reduce coal-fired ignition temperature, coal-fired burn-off rate is descended to some extent, add the heat loss due to exhaust gas of chimney, the thermal efficiency of general home-use heating stove has only about 50%.

2. naturally circulated hot water heating system is under the state of full water in whole system could normal operation, be that working-medium water must be full of whole system, so the water capacity of system is very big, moreover the circulation power of natural-circulation heating system is poor from conspiring of working-medium water, when having only circulating head that the density contrast of working medium produces greater than the resistance of system pipeline, working-medium water could begin circulation, so the working-medium water of whole heating system will be heated to about 70 ℃, heating system just enters normal circulation, this time generally speaking, need about 1.5 hours, whole heating room is heated to normal heating temperature, will needs one hour time again, above-mentioned situation explanation, reach time of needed heating temperature from the stove room of lighting a fire, need 2.5 hours time at least.

3. in the winter of cold, if interim several days of family is unoccupied, also need intrasystem working-medium water is all put totally, not so, very easily cause damage to system equipment because of freeze injury in outdoor part.

4. because the expansion tank of heating system is straight-through atmosphere, the air that accumulates in normal discharge in service system is when system's running temperature is low or between interim lay-off period, the air in the atmosphere also can be drawn into the corrosion that causes in the system system pipeline.

In sum, these problems and shortcoming all be naturally circulated hot water heating system itself intrinsic and problem that be difficult to overcome and shortcoming, in the today of creating conservation-minded society, seek the method that solves the problems of the technologies described above and be very important.

Summary of the invention

Low for the thermal efficiency that overcomes existing coal-fired naturally circulated hot water heating system, start-up time is long, system equipment pipe interior seriously corroded, is subject to the problems such as destruction of freeze injury winter.The utility model provides a kind of coal-fired Low Temperature Steam superconducting heating system, and this system is theoretical based on heat pipe (being commonly called as superconducting pipe), develops and widened the range of application and the method for heat pipe theory.Single tube is developed into the multitube combination evaporator, the single tube heat radiation is developed into the many group heat radiations of multitube combination.With the flow separation of heat pipe steam that direction is opposite in a pipe and liquid is the individual passage that flows separately, so eliminated the limit of carrying that limits its heat-transfer capability, and still keeping two-phase flow, the phase-change heat transfer of heat pipe, have high exothermic coefficient, characteristics such as Natural Circulation.Because the temperature of steam is low more, the content of its latent heat of vaporization is big more, usually the steam below 100 ℃ is called Low Temperature Steam.The steam normal working temperature that the utility model is selected for use is 60 ℃--90 ℃, in order to obtain Low Temperature Steam mode operation with superconduction in system, just must make and be in the whole system under the high vacuum state, require static vacuum should remain on about 98%, and absolute pressure should be lower than 2000Pa in the system.In order to keep intrasystem vacuum forever stable, do not allow mounted valve on the conveyance conduit of heating system, the pipe joint of system and pipe fitting joint all adopt welding or soldering.In order to guarantee the normal safe operation of system, be provided with the fixed gas jar in the extreme higher position of system, and vacuum meter and safety device have been installed at an upper portion thereof.

The technical scheme that the utility model technical solution problem is adopted is:

1. rotating type briquette burner (13), plug-type coal burner (14) and evaporimeter (18) device are in an incubator, form coal burning evaporator assembly (1), Low Temperature Steam pipe (45) one ends are connected with evaporimeter, one end is connected with Low Temperature Steam arm (46), Low Temperature Steam arm (46) one ends are connected with the Low Temperature Steam pipe, one end is connected with adjustment type radiator (7) (8) directly perceived, condensation water arm (47) one ends are connected with adjustment type radiator directly perceived, one end is connected with condensation water house steward (48), condensation water house steward (48) one ends are connected with the condensation water arm, and an end is connected with evaporimeter condensation water inlet tube (15).

2. rotating type briquette burner (13) one sides are fixed on the insulation casing with plug-in type hinge (16), and the weight of opposite side is held by bottom support roller (17) holder, can screw in or screw out the insulation casing easily; Weight when plug-type coal burner (14) is pulled out the insulation casing is held by bottom support roller (17) holder.

3. the rotatable 90 ° of angles of left and right sides circular arc insulation shell (43) (44) in the adjustment type radiator (7) (8) directly perceived open or close operation.

The beneficial effects of the utility model are:

1. compare with coal-fired naturally circulated hot water heating system, the thermal efficiency of heating system is brought up to about 85～90% by about 50%, energy-saving effect is remarkable.

2. compare with coal-fired naturally circulated hot water heating system, start-up time, (normally heating from lighting a fire to system) shortened to about 0.5 hour by about 2.5 hours.

Since system after installing, will internal system be pumped into the high vacuum state with air exhauster (vavuum pump), also will add corrosion inhibiter and degasifier in the working solution, the heating equipment pipe interior does not corrode basically, non-artificial reason need not added working solution for a long time.

4. adjustment type radiator directly perceived is an on-wall type, does not occupy ground space, also can become ornament to insulation cladding surfaces externally and internally printing pattern calligraphy and painting, and adjust very convenient, very directly perceived.

5. this Low Temperature Steam superconducting heating system is applicable to and utilizes the heating system of pluralities of fuel (as combustion gas, fuel oil) various energy resources (as waste heat, electric energy, solar energy) as thermal source, and present embodiment is wherein a kind of just.

6. owing to be in the high vacuum state in the system, when environment temperature was-40 ℃, working solution can not freeze, and need not to worry the freeze injury influence winter between lay-off period.

Description of drawings

Fig. 1 is a circulation theory system diagram of the present utility model.

Fig. 2 is the exterior structure figure of coal burning evaporator assembly.

Fig. 3 is the sectional structural map of relevant position on three views of Fig. 2.

Fig. 4 is the structural map of adjustment type radiator directly perceived.

Fig. 5 is the sectional structural map of adjustment type radiator insulation shell directly perceived.

1. coal burning evaporator assemblies among the figure, 2. thermometer (band overtemperature alarm device), 3. fixed gas jar, 4. reserve the tube head of bleeding, 5. vacuum meter, 6. safety disc, 7. the adjustment type radiator directly perceived of two floors, 8. the adjustment type radiator directly perceived of first floor, 9. the grey drawer of the plug-type coal burner in the right side ventilating opening of holding concurrently, 10. the grey drawer of the rotatable coal burner of the left side spin ventilating opening of holding concurrently, 11. Low Temperature Steam outlets, 12. chimneys, 13. rotating type briquette burner, 14. plug-type coal burner, 15. condensation water inlet tubes, 16. plug-in type hinges, 17. load-bearing support roller, 18. evaporimeter, 19. working solution topping up pipes, 20. insulation casings, 21. refractory material (combustion chamber), 22. insulation material (perlite), 23. coal carriages, 24. evaporimeter supporting plates, 25. evaporation tube, 26. the evaporation tube header, 27. refractory materials, 28. Low Temperature Steams inlet, 29. radiator top steam chest, 30. upper mounted plate, 31. bottom plates, 32. bottom steam chests, 33. condensing working liquid outlet, 34. centrifugal fan, 35. radiating tubes, 36. insulation cladding prelocalization plates, 37. insulation cladding upper plugging plate, 38. hook, base plate behind 39. insulation claddings, 40. insulation materials (rock wool blanket), 41. hinge, 42. the insulation cladding lower plugging plate, rotatable 90 ° of (opening or closing) circular arc insulation claddings in 43. left sides, rotatable 90 ° of (opening or closing) circular arc insulation claddings in 44. right sides, 45. Low Temperature Steam pipe, 46. the Low Temperature Steam arm, 47. condensation water arms, 48. condensation water house stewards.

The line of demarcation of floor when dotted line is expressed as building among Fig. 1, promptly the below of dotted line is one deck, the top of dotted line is two layers.

The specific embodiment

The utility model is comprising the full content of a heating engineering, and the concrete content of implementing is more, can be divided into three parts generally:

First is by the design drawing requirement, can shift to an earlier date prefabricated in factory, the utility model need have by prefabricated equipment in factory: Fig. 2, coal burning evaporator assembly shown in Figure 3, adjustment type radiator directly perceived shown in Figure 4, the insulation shell of adjustment type radiator directly perceived shown in Figure 5 and the fixed gas jar 3 in the circulation theory system diagram 1.

Second portion need be implemented at engineering site (user), and the groundwork of implementing at engineering site has following content:

1. equipment is located, characteristics according to building, the coal burning evaporator assembly generally should be chosen on the ground level of outdoor lower position, if with the floor room, only be chosen on the outdoor balcony, radiator generally should be arranged near indoor being subjected to easily the window that cold air invades, or the body of wall of window both sides is near the place of window, what should pay special attention to is, setting height(from bottom) to radiator requires that special saying is arranged, as a that indicates among Fig. 1, b 2 points, a point is the peak of coal burning evaporator assembly, the b point is the minimum point of steam chest under the adjustment type radiator directly perceived, and the horizontal absolute altitude that requires b to order should be higher than more than the horizontal absolute altitude 300mm of a point.The fixed gas jar should be arranged on the peak of system.

2. the installation of system pipeline and welding.Location situation according to equipment, requirement by Fig. 1 system diagram, carrying out pipe arrangement installs, because the vacuum requirements in the whole system is nonvolatil, so do not allow to install any valve in the whole system, the gas welding welding is used in the butt weld of pipe, and iron copper brazing welding is adopted in the welding of pipe and pipe fitting (as threeway, elbow etc.), pipe fitting can be processed prefabricated separately, also can utilize the processing of finished product pipe fitting.Mainly be the screwed connection between pipe and the pipe fitting to be become plug-in type connect, weld in order to soldering.It is screwed connection that whole system has only vacuum meter one place.

Third part mainly is debugging work

1. after system's armamentarium and pipeline installation welding finished, the reply whole system was done the water pressure test, and test pressure is 0.2MPa, and the main purpose of the water pressure test is whether breakthrough is arranged in the check system, behind the discovery breakthrough, should according to circumstances be eliminated.

The water pressure test qualified after, also to carry out Chemical cleaning to whole system inside.The main purpose of Chemical cleaning is rust deposite, greasy dirt and other silt particle, foreign material of purging system inner-walls of duct etc., prepares cleaning agent as the case may be, uses the trisodium phosphate solution of 5-10% just passable generally speaking.In order to guarantee cleaning quality, use scavenging pump and make cleaning fluid systemic circulation in system, according to the needs of cleaning, can on the appropriate location of system, disconnect pipeline temporarily, scavenging pump is installed, fixed gas jar place can settle Cistern with chemicals adding means temporarily.After cleaning end, use clean clear water rinse-system, water is thoroughly put totally.Gap should weld after flushing finishes again.

3. utilize the topping up pipe in system, to fill and add working solution.When the topping up mouth of pipe outwards overflows working solution, can think that working solution substitutes the bad for the good, determine that its position height can not at will be changed because the height of this mouth of pipe calculates the back through the designer, be available soldering and sealing pincers behind the working solution of substituting the bad for the good with its pincers after death and soldering and sealing.

4. before vacuumizing, it is appropriate to check at first whether safety disc has welded, safety disc be soldering on the pipe end plane, just can utilize the tube head of reserving on the fixed gas jar of bleeding to be connected to air exhauster then, to vacuumizing in the system, observation is installed in the vacuum meter on the fixed gas jar, reach requirement after, the tube head of will bleeding dead and soldering and sealing with soldering and sealing pincers pincers, after exhausting vacuum, should parked 24 hours, if the pressure on the vacuum meter does not change, illustrative system ne-leakage point then.Reduced to atmospheric pressure if the pressure on the vacuum meter shows to change than big or vacuum, illustrative system has breakthrough, should check out that also breakthrough is also eliminated, and after vacuumizing for the second time, must place 24 hours again.Because the retention time of system vacuum degree is the key that can this heating system successful, system must be under the qualified situation of vacuum, the trial run of can lighting a fire.

5. at trial run period or during commencement of commercial operation, a problem of submitting to pay special attention to is: so long as system just must have the insulation cladding of a radiator to take off, in case whole radiators take place all in off position in the igniting operation.During the igniting trial run, note observing the variations in temperature on the thermometer on the steam outlet pipe, recommend normal heating vapor (steam) temperature to select 60 ℃ for use, and note the indicated value of vacuum meter this moment, the vacuum that the planted agent of system kept when the vacuum indicated value of this moment was just normally warmed oneself.During the igniting trial run, be further noted that the overtemperature alarm situation of thermometer, alarm temperature is provided with and generally should be 90 ℃.Come temperature in the control room according to individual's custom, in the time can reaching the indoor temperature that oneself needs, the steam running temperature of system is under the situation that guarantees the heating temperature, and is low more energy-conservation more.

Claims

1. coal-fired Low Temperature Steam superconducting heating system, it is characterized in that: rotating type briquette burner (13), plug-type coal burner (14) and evaporimeter (18) device are in an incubator, form coal burning evaporator assembly (1), Low Temperature Steam pipe (45) one ends are connected with evaporimeter, one end is connected with Low Temperature Steam arm (46), Low Temperature Steam arm (46) one ends are connected with the Low Temperature Steam pipe, one end is connected with adjustment type radiator (7) (8) directly perceived, condensation water arm (47) one ends are connected with adjustment type radiator directly perceived, one end is connected with condensation water house steward (48), condensation water house steward (48) one ends are connected with the condensation water arm, and an end is connected with evaporimeter condensation water inlet tube (15).

2. coal-fired Low Temperature Steam superconducting heating according to claim 1 system, it is characterized in that: rotating type briquette burner (13) one sides are fixed on the insulation casing with plug-in type hinge (16), the weight of opposite side is held by bottom support roller (17) holder, can screw in or screw out the insulation casing easily; Weight when plug-type coal burner (14) is pulled out the insulation casing is held by bottom support roller (17) holder.

3. coal-fired Low Temperature Steam superconducting heating according to claim 1 system, it is characterized in that: the rotatable 90 ° of angles of left and right sides circular arc insulation shell (43) (44) in the adjustment type radiator (7) (8) directly perceived open or close operation.