CN203758011U - Skid-mounted water jacket furnace - Google Patents

Abstract

The utility model discloses a skid-mounted water jacket furnace. The skid-mounted water jacket furnace comprises the water jacket furnace which is arranged on a prying body; a cylinder, a smoke-fire pipe and a combustor are arranged inside the water jacket furnace; the smoke-fire pipe is formed by a fire cylinder and smoke pipes; the combustor is arranged at a close end inside the fire cylinder; the smoke pipes are communicated with the fire cylinder at a far end of the fire cylinder; the number of the smoke pipes is two; the plurality of smoke pipes are arranged at the periphery on the upper half portion of the round pipe of the fire cylinder; distance between axes of the smoke pipes and an axis of the fire cylinder is equal; the external diameter of the plurality of smoke pipes is larger than that of the fire cylinder; the sum of pipe hole areas of the plurality of smoke pipes is less than or equal to half of the pipe hole area of the fire cylinder; the cylinder is in a double-layer structure which is formed by an internal cylinder and an external cylinder; the external cylinder and the internal cylinder are welded into a whole; expanded perlite thermal insulation materials are filled between the internal cylinder and the external cylinder; a fuel gas inlet pipeline of the combustor is provided with a gas-liquid separator. The skid-mounted water jacket furnace has the advantages of being high in thermal efficiency, rapid in heating speed of natural gas required to be dehydrated, stable and reliable in working, simple in structure and convenient to machine.

Description

Skid-mounted type water jacket furnace

Technical field

The utility model relates to a kind of heated by natural gas equipment, particularly a kind of skid-mounted type water jacket furnace before conveying, natural gas being heated of concentrating for natural gas.

Background technology

Before carrying in the long distance set of natural gas after exploitation out, need to carry out processed, and before processed, need after heated by natural gas, its firing equipment adopts water jacket furnace conventionally, and meanwhile, this water jacket furnace is made skid form conventionally.Existing water jacket furnace comprises cylindrical shell, is provided with smoke-fire-tube, natural gas flow is comprehensively managed in cylindrical shell, the outer water jacket that is formed with of the overall pipe of smoke-fire-tube and natural gas flow.Existing smoke-fire-tube comprises fire cylinder and smoke pipe, and smoke pipe is communicated with fire cylinder in fire cylinder inner end, and the outlet of smoke pipe is communicated with the smoke-box of water jacket furnace, and smoke pipe forms " throat " part of water jacket furnace gas furnace part, and its actual internal area is less than the actual internal area of fire cylinder.During water jacket furnace work, fuel is at fiery cylinder roasting, and the hot gas after burning is discharged from chimney by smoke pipe.At water jacket furnace moderate heat cylinder and smoke pipe, all infiltrate in the water jacket forming in water jacket furnace stove cylinder, fire cylinder and smoke pipe are implemented heating by heat exchange pattern to the water in stove cylinder, the water of heating transfers heat to the fluid line that needs heating by heat exchange pattern, by fluid line, to flowing to its inner fluid, carry out conduction-type heating, thereby realize the object of convection cell heating.Therefore, the smoke-fire-tube of this water jacket furnace is discharged fume smoothly for ease of smoke pipe, its smoke pipe section diameter is set to half left and right of fire cylinder section diameter conventionally, centre-to-centre spacing direction size in its two pipeline sections cross section is larger, obstruction fluid line is arranged, and the water body that the layout of fluid line can not realize in fluid and water jacket carries out sufficient heat exchange; Meanwhile, in limited space, the area of dissipation of two pipeline sections is limited, is unfavorable for that the water body in smoke-fire-tube and water jacket carries out good heat exchange, causes heat exchange efficiency low; The combustion gas that is used for the water jacket furnace of this occasion is the natural gas after processed, this natural gas returns to a part by bypass duct and uses from dewater unit, but the dehydration degree of depth of this dewater unit is limited conventionally, particularly in northern frore area, natural gas easily forms condense water smoke or the globule that condenses on return pipeline, this condensate water easily causes the burner of water jacket furnace flame-out, causes equipment fuser malfunction; In addition, the cylindrical shell outside of water jacket furnace must be provided with heat insulation structure.Existing heat-insulation layer adopts silicate fiber plate to add the structure of thin aluminum sheet or the wrapping of thin corrosion resistant plate, and its insulation layer thickness size is large, and intensity is low, easily in transportation or use procedure, damages, and affects heat insulation effect.For this reason, need improve.

Summary of the invention

The purpose of this utility model is exactly for the deficiencies in the prior art, and a kind of skid-mounted type water jacket furnace is provided, and this water jacket furnace thermal efficiency heated by natural gas speed high, that need dewater is fast, and working stability is reliable.

For achieving the above object, the utility model adopts following technical scheme.

A kind of skid-mounted type water jacket furnace, comprise the water jacket furnace being arranged on prying body, this water jacket furnace is provided with cylindrical shell, smoke-fire-tube, spark arrester, burner, natural gas coil pipe and smoke box, smoke-fire-tube consists of fire cylinder and smoke pipe, burner is located at the near-end in fire cylinder, smoke pipe is communicated with fire cylinder at fire cylinder far-end, smoke pipe outlet is arranged in smoke box, described smoke pipe is provided with at least 2, a plurality of smoke pipes are distributed in the pipe first half periphery of described fire cylinder, and each smoke pipe axis equates with the distance of described fire cylinder axis, the external diameter of a plurality of smoke pipes and be greater than described fire cylinder external diameter, the pore area of a plurality of smoke pipes and be less than or equal to described fire cylinder pore area 1/2nd, described cylindrical shell forms double-decker by inner core and urceolus, and this urceolus and inner core are welded as a whole, and is filled with expansion pearlite thermal insulation material between inner core and urceolus, the gas inlet pipeline of described spark arrester front end is provided with gas-liquid separator.

Adopt the utility model of such scheme, because the smoke pipe of smoke-fire-tube in this skid water jacket furnace adopts a plurality of and is distributed in the fan-shaped columnar region of fire cylinder first half pipe, the external diameter of a plurality of smoke pipes and be greater than described fire cylinder external diameter; Therefore, smoke pipe external diameter can be arranged to much smaller than fire cylinder external diameter, significantly to reduce the centre-to-centre spacing direction size in smoke-fire-tube cross section, when effectively increasing its heat exchange area, be beneficial to fluid line and be arranged to form fully and the structure of good heat exchange with water body in water jacket; Meanwhile, the cylindrical shell of water jacket furnace adopts double-decker, and two annular tube walls form one by welding manner, and welding outer tube wall forms solid and reliable protection to the heat-barrier material between two-layer, its long service life; Simultaneously, heat-barrier material adopts expanded perlite to add with filling mode, its heat-proof quality is better, the in the situation that of identical heat insulation effect, can effectively reduce heat insulation layer after thickness, or can effectively improve insulation insulation effect in the essentially identical situation of heat insulation layer thickness; In addition, on the gas inlet path of burner, be provided with gas-liquid separator, the natural gas that can treat burning carries out further processed, avoids condensate water to cause the flame-out and equipment fault that brings of burner.Therefore the utility model, combustion of natural gas is abundant, utilization rate is high, the thermal efficiency is high, and stability is good, reliability is high.

Preferably, the inner end of described fire cylinder is welded with the arch end socket of arch crown; The elbow of described smoke pipe by 90 ° is communicated with described fire cylinder in the fire cylinder end near described end socket, and a plurality of elbows are welded on respectively on the tube wall of fiery along the arrange mode of putting of a row or two that is axially of described fire cylinder.Elbow adopts the standard elbow structure of 90 °, can guarantee to have enough space lengths between smoke pipe and fire cylinder, further guarantees that the heat exchange of water body in smoke-fire-tube and water jacket is abundant.

Further preferred, described smoke pipe is even number, and even number smoke pipe is distributed in the pipe first half periphery of described fire cylinder symmetrically with the perpendicular at described fire cylinder axis place, the external diameter of a plurality of smoke pipes and be 1.2～1.8 times of a described fire external diameter; Described elbow is arranged and is located on described fire cylinder by two.Be beneficial to and improve the stability of smoke-fire-tube in water jacket furnace, meanwhile, while selecting larger smoke pipe diameter in the bulk of setting, be convenient to the welding operation between elbow and smoke pipe and fire cylinder, to guarantee welding quality, improve service life and reliability.The external diameter of a plurality of smoke pipes and with the reasonable ratio of fire cylinder external diameter, can further guarantee smoke-fire-tube heat exchange effect.

Preferably, the inner end of described fire cylinder is welded with pyrotechnics case, and pyrotechnics case is communicated with described smoke pipe, and the base plate of pyrotechnics case forms cambered surface reflecting plate, and the inner end outlet of the concave surface of cambered surface reflecting plate and described fire cylinder and the import of smoke pipe are in opposite directions.This programme arranges pyrotechnics case in the inner end of fire cylinder, and the base plate of pyrotechnics case formation arc reflection plate, and the high-temperature flue gas of fire cylinder end is reflected smoothly and imported in smoke pipe by pyrotechnics case internal reflection plate, thereby discharges smoothly.In the heat exchanging process of smoke-fire-tube, not only fire cylinder and smoke pipe and water body have carried out good heat exchange, have also increased the heat exchange link of pyrotechnics case, and its heat exchange effect obviously improves.

Preferably, described gas-liquid separator comprises cylinder, escape pipe and filter core, and filter core is comprised of filter disc and the air inlet pipe that runs through this filter disc, and filter disc is that tabula is in described cylinder obliquely, and the outlet of air inlet pipe is positioned at the cylinder Lower Half of filter core below; The import of described escape pipe is positioned at the cylinder first half of filter disc top; Described filter disc comprises up-hole plate and orifice plate, is provided with multilayer stainless steel wire web plate between up-hole plate and orifice plate, is equipped with a plurality of hollow holes on up-hole plate and orifice plate.It is simple in structure, processing and easy to use, low cost of manufacture.

Further preferred, described each smoke pipe axis equates with the distance of described fire cylinder axis.For the technical scheme of employing elbow, its elbow uniform specification; For adopting the smoke box structure of cambered surface reflecting plate, cambered surface reflection board structure is simple, all can reduce the difficulty of processing of the two, reduces manufacturing cost.

The utility model beneficial effect is compared with prior art, this water jacket furnace thermal efficiency is high, need the heated by natural gas speed of dehydration fast, and equipment working stability is reliable, and simple in structure, easy to process.

Accompanying drawing explanation

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

Fig. 2 is the structural representation of smoke-fire-tube in the utility model embodiment 1.

Fig. 3 is that A in the utility model Fig. 2 is to view.

Fig. 4 is the structural representation of the utility model embodiment 2.

Fig. 5 is the structural representation of smoke-fire-tube in the utility model embodiment 2.

Fig. 6 is the B-B cutaway view in the utility model Fig. 5.

Fig. 7 is the structural representation of the gas-liquid separator 16 in the utility model.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described, but therefore the utility model is not limited among described scope of embodiments.

Embodiment 1 is referring to Fig. 1, Fig. 2, Fig. 3, Fig. 7, a kind of skid-mounted type water jacket furnace, comprise the water jacket furnace being arranged on prying body, this water jacket furnace is provided with cylindrical shell, smoke-fire-tube, spark arrester 9, burner 10, natural gas coil pipe 11 and smoke box 12, smoke-fire-tube consists of fire cylinder 1 and smoke pipe 2, and burner 10 is located at the near-end in fire cylinder 1, and smoke pipe 2 is communicated with fire cylinder 1 at fire cylinder 1 far-end, smoke pipe 2 outlets are arranged in smoke box 12, and the inner end of described fire cylinder 1 is welded with the arch end socket 3 of arch crown; Described smoke pipe 2 is provided with 6,6 smoke pipes 2 are distributed in the pipe first half periphery of described fire cylinder 1, and each smoke pipe 2 axis equate with the distance of described fire cylinder 1 axis, the external diameter of 6 smoke pipes 2 and be greater than described fire cylinder 1 external diameter, the pore area of 6 smoke pipes 2 and be less than or equal to described fire cylinder 1 pore area 1/2nd; 6 smoke pipes 2 respectively elbow 4 by 1 90 ° are communicated with at fire cylinder 1 end near described end socket 3 and described fire tin 1,6 elbows 4 are welded on respectively on the tube wall of fire cylinder 1 along two modes of putting of arranging that are axially of described fire cylinder 1, and each smoke pipe 2 axis equate with the distance of described fire 1 axis; Described cylindrical shell forms double-decker by inner core 13 and urceolus 14, and this urceolus 14 is welded as a whole with inner core 13, between inner core 13 and urceolus 14, is filled with expansion pearlite thermal insulation material 15; The gas inlet pipeline of described spark arrester 9 front ends is provided with gas-liquid separator 16; Described gas-liquid separator 16 comprises cylinder 161, escape pipe 162 and filter core, filter core is comprised of filter disc 163 and the air inlet pipe 164 that runs through this filter disc 163, filter disc 163 is obliquely tabula in described cylinder 161, the outlet of air inlet pipe 164 is positioned at cylinder 161 Lower Halves of filter core below, and the barrel lower end of cylinder 161 is provided with comb 165; The import of described escape pipe 162 is positioned at cylinder 161 first halves of filter disc 163 tops; Described filter disc 163 comprises up-hole plate and orifice plate, is provided with multilayer stainless steel wire web plate between up-hole plate and orifice plate, is equipped with a plurality of hollow holes on up-hole plate and orifice plate.

In the present embodiment, the quantity of smoke pipe 2 also can be odd number, and when being made as odd number, one of them smoke pipe 2 axis is positioned at the perpendicular at fire cylinder 1 center line place, and remaining even number smoke pipe 2 is arranged to be symmetrical layout type with this perpendicular.

Under the situation that elbow 4 in the present embodiment allows in welding position, also can be arranged as a row.

Embodiment 2 is referring to Fig. 4, Fig. 5, Fig. 6, a kind of skid-mounted type water jacket furnace, comprise the water jacket furnace being arranged on prying body, this water jacket furnace is provided with cylindrical shell, smoke-fire-tube, spark arrester 9, burner 10, natural gas coil pipe 11 and smoke box 12, smoke-fire-tube consists of fire cylinder 1 and smoke pipe 2, burner 10 is located at the near-end in fire cylinder 1, smoke pipe 2 is communicated with fire cylinder 1 at fire cylinder 1 far-end, smoke pipe 2 outlets are arranged in smoke box 12, the inner end of described fire cylinder 1 is welded with pyrotechnics case 6, pyrotechnics case 6 is communicated with described smoke pipe 2, the base plate of pyrotechnics case 6 forms cambered surface reflecting plate 7, the inner end outlet of the concave surface of cambered surface reflecting plate 7 and described fire cylinder 1 and the import of smoke pipe 2 are in opposite directions, described smoke pipe 2 is provided with 7,7 smoke pipes 2 are distributed in the pipe first half periphery of described fire cylinder 1, and each smoke pipe 2 axis equate with the distance of described fire cylinder 1 axis, the external diameter of 7 smoke pipes 2 and be greater than described fire cylinder 1 external diameter, the pore area of 7 smoke pipes 2 and be less than or equal to described fire cylinder 1 pore area 1/2nd.

All the other structures of the present embodiment are identical with embodiment 1, do not repeat them here.

Although combine above accompanying drawing, embodiment of the present utility model has been described, but those of ordinary skill in the art also can recognize making various variations or modification in the scope of claims, these modifications and variations are interpreted as within scope of the present utility model and intention.

Claims (6)

1. a skid-mounted type water jacket furnace, comprise the water jacket furnace being arranged on prying body, this water jacket furnace is provided with cylindrical shell, smoke-fire-tube, spark arrester (9), burner (10), natural gas coil pipe (11) and smoke box (12), smoke-fire-tube consists of fire cylinder (1) and smoke pipe (2), burner (10) is located at the near-end in fire cylinder (1), smoke pipe (2) is communicated with described fire cylinder (1) at fire cylinder (1) far-end, smoke pipe (2) outlet is arranged in smoke box (12), it is characterized in that, described smoke pipe (2) is provided with at least 2, a plurality of smoke pipes (2) are distributed in the pipe first half periphery of described fire cylinder (1), and each smoke pipe (2) axis equates with the distance of described fire cylinder (1) axis, the external diameter of a plurality of smoke pipes (2) and be greater than described fire cylinder (1) external diameter, the pore area of a plurality of smoke pipes (2) and be less than or equal to described fire cylinder (1) pore area 1/2nd, described cylindrical shell forms double-decker by inner core (13) and urceolus (14), and this urceolus (14) is welded as a whole with inner core (13), between inner core (13) and urceolus (14), is filled with expansion pearlite thermal insulation material (15), the gas inlet pipeline of described spark arrester (9) front end is provided with gas-liquid separator (16).

2. skid-mounted type water jacket furnace according to claim 1, is characterized in that: the inner end of described fire cylinder (1) is welded with the arch end socket (3) of arch crown; The elbow (4) of described smoke pipe (2) by 90 ° is communicated with described fire cylinder (1) in fire cylinder (1) end near described end socket (3), and a plurality of elbows (4) are welded on respectively on the tube wall of fiery tin (1) along a row or two mode of putting of arranging that is axially of described fire cylinder (1).

3. skid-mounted type water jacket furnace according to claim 2, it is characterized in that: described smoke pipe (2) is even number, even number smoke pipe (2) is distributed in the pipe first half periphery of described fire cylinder (1) symmetrically with the perpendicular at described fire cylinder (1) axis place, the external diameter of a plurality of smoke pipes (2) and be 1.2～1.8 times of described fire (1) external diameter; Described elbow (4) is arranged and is located on described fire cylinder (1) by two.

4. skid-mounted type water jacket furnace according to claim 1, it is characterized in that: the inner end of described fire cylinder (1) is welded with pyrotechnics case (6), pyrotechnics case (6) is communicated with described smoke pipe (2), the base plate of pyrotechnics case (6) forms cambered surface reflecting plate (7), and the inner end outlet of the concave surface of cambered surface reflecting plate (7) and described fire cylinder (1) and the import of smoke pipe (2) are in opposite directions.

5. skid-mounted type water jacket furnace according to claim 1, it is characterized in that: described gas-liquid separator (16) comprises cylinder (161), escape pipe (162) and filter core, filter core is comprised of filter disc (163) and the air inlet pipe (164) that runs through this filter disc (163), filter disc (163) is obliquely tabula in described cylinder (161), and the outlet of air inlet pipe (164) is positioned at cylinder (161) Lower Half of filter core below; The import of described escape pipe (162) is positioned at cylinder (161) first half of filter disc (163) top; Described filter disc (163) comprises up-hole plate and orifice plate, is provided with multilayer stainless steel wire web plate between up-hole plate and orifice plate, is equipped with a plurality of hollow holes on up-hole plate and orifice plate.

6. according to the skid-mounted type water jacket furnace described in any one item claim in claim 1～5, it is characterized in that: described each smoke pipe (2) axis equates with the distance of described fire cylinder (1) axis.