CN219368473U - Automatic blowdown heat exchanger - Google Patents

Abstract

The utility model relates to the field of fin heat exchangers and discloses an automatic sewage-discharging heat exchanger, which comprises a heat exchanger shell and a fin type coiled pipe arranged in the heat exchanger shell, wherein the fin type coiled pipe comprises a fluid input end and a fluid output end which extend out of two sides of the heat exchanger shell respectively, an in-pipe sewage-discharging cleaning mechanism connected with the fin type coiled pipe is arranged at the top of the heat exchanger shell, fin cleaning components positioned at two sides of a fin on the fin type coiled pipe are connected to the in-pipe sewage-discharging cleaning mechanism, a sewage collecting box is fixedly arranged on the inner wall of the bottom of the heat exchanger shell and below the corresponding fin type coiled pipe, a sewage discharging pipe extending out of the heat exchanger shell is fixedly connected to the side surface of the sewage collecting box, and a sewage discharging valve is arranged in the sewage discharging pipe.

Description

Automatic blowdown heat exchanger

Technical Field

The utility model relates to the field of fin heat exchangers, in particular to an automatic blowdown heat exchanger.

Background

The fin type radiator mainly comprises three rows of parallel spiral fin tube bundles between air flow directions, the fin type heat exchanger is characterized in that mechanical winding sheets are adopted, the contact surface between radiating fins and radiating tubes is large, the heat transfer performance is good and stable, the air passing resistance is small, steam or hot water flows through the steel tube tubes, and heat is transferred to the air passing between the fins through the fins tightly wound on the steel tube, so that the effects of heating and cooling the air are achieved; for example, application number CN201720743853.3 discloses a fin heat exchanger comprising a housing and a heat exchange assembly; a plurality of heat exchange assemblies are arranged in the shell at equal intervals along the height direction of the shell; the heat exchange assemblies each include: the heat pipe, first blade and second blade. According to the fin type heat exchanger, the heat carried in high-temperature flue gas can be effectively utilized through the arrangement of the heat exchange component, and due to the structural design of the first blade, the second blade, the third blade and the fourth blade, not only can the energy of the high-temperature flue gas be effectively utilized, but also the content of particles in the discharged flue gas can be effectively reduced;

but this heat exchanger can cause the dust to pile up between the fin under long-term use's circumstances to and the dirt in the pipe is piled up, thereby influences subsequent use and heat transfer efficiency, still need the manual work to dismantle the back and clean simultaneously when carrying out the cleaning, and is loaded down with trivial details troublesome, for this reason we propose an automatic blowdown heat exchanger.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an automatic blowdown heat exchanger, which solves the problems.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automatic heat exchanger of blowdown, includes heat exchanger casing and the inside wing formula coiled pipe that sets up of heat exchanger casing, the wing formula coiled pipe is including fluid input and the fluid output who extends heat exchanger casing both sides respectively, the top of heat exchanger casing is provided with the intraductal blowdown clean mechanism of being connected with wing formula coiled pipe, be connected with the clean subassembly of fin that is located wing formula coiled pipe upper fin both sides on the clean mechanism of intraductal blowdown, the fixed mounting has the dirty box of collection under the corresponding wing formula coiled pipe on the inner wall of heat exchanger casing bottom, the side fixedly connected with of dirty box of collection extends the blow off pipe of heat exchanger casing, and is provided with the blowoff valve in the blow off pipe.

Preferably, the in-pipe pollution discharge cleaning mechanism comprises a water tank, a pressurized water pump, a draft tube, an electric valve I and an electric valve II, the water tank and the pressurized water pump are installed on the outer wall of the top of the heat exchanger shell in parallel, a water pipe is connected between the water tank and the pressurized water pump, the output end of the pressurized water pump is fixedly connected with the draft tube, the draft tube is bent and extended to the inside of the heat exchanger shell away from the port of the pressurized water pump and is connected with the wing type coiler, the electric valve II is arranged above the junction of the draft tube and the wing type coiler, and the electric valve I is arranged between the junction of the wing type coiler and the corresponding fluid input end of the wing type coiler.

Preferably, the connection part of the draft tube and the fin type coil is positioned between the fluid input end and the fins on the fin type coil.

Preferably, the fin cleaning assembly comprises a transverse connection pipe, a vertical connection pipe and a spray header, wherein two groups of transverse connection pipes are fixedly connected above the connection positions of the outer walls of the two sides of the draft pipe and the fin type coiled pipe correspondingly, the two groups of transverse connection pipes are parallel to the fin type coiled pipe, the outer walls of the bottoms of the transverse connection pipes are fixedly connected with a plurality of groups of vertical connection pipes, the plurality of groups of vertical connection pipes are perpendicular to the transverse connection pipes, the plurality of groups of vertical connection pipes are located on one side of a region where fins are arranged on the fin type coiled pipe, and the vertical connection pipes are close to one side of the fin type coiled pipe, where the fins are arranged, of the plurality of spray headers.

Preferably, the plurality of spray heads are vertically arranged in a straight line on the vertical connecting pipe, every two spray heads on the vertical connecting pipe are in a group, the spray heads in a group are distributed and positioned obliquely above and obliquely below each layer of fins on the fin type coiled pipe, and the spray heads are all in an oblique shape facing the fins on the fin type coiled pipe.

Preferably, the plurality of groups of vertical connecting pipes are transversely and equidistantly arranged on the transverse connecting pipe, and the interval between two adjacent groups of vertical connecting pipes in the plurality of groups of vertical connecting pipes is smaller than the spraying range of the spray heads, so that the overlapping spraying area of the transversely adjacent spray heads is ensured, and the fins of the fin type coiled pipe are ensured to be cleaned.

(III) beneficial effects

Compared with the prior art, the utility model provides the heat exchanger capable of automatically discharging sewage, which has the following beneficial effects:

1. according to the heat exchanger capable of automatically discharging sewage, through the in-pipe sewage cleaning mechanism, when the heat exchanger is idle, the first electric valve on the fluid input end can be closed and the second electric valve on the ventilation pipe can be opened, then the pressurized water pump is braked to pump water into the water tank, pressurized water flows into the fin type coiled pipe through the ventilation pipe, the inside of the fin type coiled pipe is subjected to impact cleaning, sewage flows out through the fluid output end, and sewage discharge cleaning inside the fin type coiled pipe is completed; the fin cleaning assembly cleans the fin region on the fin type coiled pipe while spraying and cleaning the fin region on the fin type coiled pipe, and flushes dust among fins, so that the heat exchanger can automatically clean and discharge the sewage when in idle, and the long-term use and heat exchange efficiency of the heat exchanger are facilitated.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the in-pipe blowdown cleaning mechanism of the present utility model;

FIG. 3 is a schematic view of a fin cleaning assembly according to the present utility model;

FIG. 4 is a schematic diagram of a fin coil structure according to the present utility model.

In the figure: 1. a heat exchanger housing; 2. a fin coil; 3. a fluid input; 4. a fluid output; 5. a cleaning mechanism for discharging sewage in the pipe; 6. a fin cleaning assembly; 7. a water tank; 8. a pressurized water pump; 9. a draft tube; 10. an electric valve I; 11. an electric valve II; 12. a dirt collection box; 13. a blow-down pipe; 14. a blow-down valve; 15. a transverse connecting pipe; 16. a vertical connecting pipe; 17. a spray header.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an automatic blowdown heat exchanger comprises a heat exchanger shell 1 and a fin type coil pipe 2 arranged in the heat exchanger shell 1, wherein the fin type coil pipe 2 comprises a fluid input end 3 and a fluid output end 4 which extend out of two sides of the heat exchanger shell 1 respectively, an in-pipe blowdown cleaning mechanism 5 connected with the fin type coil pipe 2 is arranged at the top of the heat exchanger shell 1, fin cleaning assemblies 6 positioned on two sides of fins on the fin type coil pipe 2 are connected to the in-pipe blowdown cleaning mechanism 5, a sewage collecting box 12 is fixedly arranged under the corresponding fin type coil pipe 2 on the inner wall of the bottom of the heat exchanger shell 1, a blowdown pipe 13 extending out of the heat exchanger shell 1 is fixedly connected to the side surface of the sewage collecting box 12, and a blowdown valve 14 is arranged in the blowdown pipe 13.

The in-pipe pollution discharge cleaning mechanism 5 comprises a water tank 7, a pressurized water pump 8, a draft tube 9, an electric valve I10 and an electric valve II 11, wherein the water tank 7 and the pressurized water pump 8 are installed on the outer wall of the top of the heat exchanger shell 1 in parallel, the pressurized water pump 8 is a DF type horizontal centrifugal pump, a water pipe is connected between the water tank 7 and the pressurized water pump 8, the output end of the pressurized water pump 8 is fixedly connected with the draft tube 9, the port of the draft tube 9, which deviates from the pressurized water pump 8, is bent and extends to the inside of the heat exchanger shell 1 and is connected with the fin type coil pipe 2, the electric valve II 11 is arranged above the connecting part of the draft tube 9, and the electric valve I10 is arranged between the connecting part of the fin type coil pipe 2, which corresponds to the fluid input end 3 and the draft tube 9. During operation, heat medium fluid enters the fin type coil pipe 2 through the fluid input end 3 and exchanges heat with air through fin groups on the fin type coil pipe 2, then flows out through the fluid output end 4, the electric valve II 11 keeps a closed state during operation, when the interior of the fin type coil pipe 2 is cleaned and discharged, the electric valve II 11 on the through-flow pipe 9 can be closed and opened firstly for the electric valve I10 on the fluid input end 3, then the brake pressurizing water pump 8 pumps water into the water tank 7, pressurized water flows into the fin type coil pipe 2 through the through-flow pipe 9, impact cleaning is carried out on the interior of the fin type coil pipe 2, and sewage flows out through the fluid output end 4, so that the cleaning of the sewage in the fin type coil pipe 2 is completed.

The connection of the draft tube 9 and the fin coil 2 is located between the fluid input 3 and the fins on the fin coil 2.

The fin cleaning assembly 6 comprises transverse connection pipes 15, vertical connection pipes 16 and spray heads 17, two groups of transverse connection pipes 15 are fixedly connected above the connection positions of the two side outer walls of the draft tube 9 and the fin type coiled tube 2 correspondingly, the two groups of transverse connection pipes 15 are parallel to the fin type coiled tube 2, the bottom outer walls of the transverse connection pipes 15 are fixedly connected with a plurality of groups of vertical connection pipes 16, the plurality of groups of vertical connection pipes 16 are perpendicular to the transverse connection pipes 15, the plurality of groups of vertical connection pipes 16 are positioned on one side of the fin type coiled tube 2 where fins are arranged, the plurality of spray heads 17 are arranged on one side of the vertical connection pipes 16, which is close to the fin group on the fin type coiled tube 2, when the interior of the fin type coiled tube 2 is cleaned, water flow in the draft tube 9 can flow into the transverse connection pipes 15 on the two sides, spray cleaning is carried out through the vertical connection pipes 16 and the spray heads 17 distributed on the vertical connection pipes 16 corresponding to the fin type coiled tube 2, dust among the fins is washed, clean sewage can fall into the sewage collecting box 12 below, and finally the sewage is discharged through the blow-down tube 13 by opening the valve 14.

The spray heads 17 are vertically arranged in a straight line on the vertical connecting pipe 16, every two spray heads 17 on the vertical connecting pipe 16 are in a group, the spray heads 17 in a group are distributed and positioned obliquely above and obliquely below each layer of fins on the fin type coiled pipe 2, and the spray heads 17 are all in an oblique shape facing the fins on the fin type coiled pipe 2.

The plurality of groups of vertical connection pipes 16 are transversely and equidistantly arranged on the transverse connection pipe 15, and the interval between two adjacent groups of vertical connection pipes 16 in the plurality of groups of vertical connection pipes 16 is smaller than the spraying range of the spray heads 17, so that the overlapping spraying area of the transversely adjacent spray heads 17 is ensured, and the fins of the fin type coiled pipe 2 are ensured to be cleaned.

Working principle: when the inside of the fin type coiled pipe 2 is cleaned and discharged, the electric valve I10 on the fluid input end 3 can be firstly closed, the electric valve II 11 on the ventilation pipe 9 is opened, then the pressurized water pump 8 is braked to pump water into the water tank 7, pressurized water flows into the fin type coiled pipe 2 through the ventilation pipe 9, the inside of the fin type coiled pipe 2 is subjected to impact cleaning, sewage flows out through the fluid output end 4 to finish the sewage discharge cleaning of the inside of the fin type coiled pipe 2, meanwhile, the water flow in the ventilation pipe 9 also flows into the transverse connection pipes 15 on two sides, and is subjected to jet cleaning through the vertical connection pipes 16 and the spray heads 17 distributed on the vertical connection pipes 16, corresponding fin areas on the fin type coiled pipe 2, dust among fins is washed, the cleaned sewage falls into the sewage collecting box 12 below, and finally the sewage discharge valve 14 is opened to discharge the sewage through the sewage discharge pipe 13; the heat exchanger can be provided with an in-tube blowdown cleaning mechanism 5 and a fin cleaning assembly 6 which are connected together, and can be used for cleaning the inside of the fin coil 2 and the outside of the fin coil 2 during the period that the heat exchanger is not in operation.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an automatic heat exchanger of blowdown, includes heat exchanger casing (1) and inside wing type coiled pipe (2) that set up of heat exchanger casing (1), wing type coiled pipe (2) are including fluid input (3) and fluid output (4) that extend heat exchanger casing (1) both sides respectively, its characterized in that: the top of heat exchanger casing (1) is provided with intraductal blowdown clean mechanism (5) of being connected with wing formula coiled pipe (2), be connected with on intraductal blowdown clean mechanism (5) and be located fin clean subassembly (6) of wing formula coiled pipe (2) upper fin both sides, the fixed mounting has dirt collecting box (12) under corresponding wing formula coiled pipe (2) on heat exchanger casing (1) bottom inner wall, the side fixedly connected with of dirt collecting box (12) extends blow off pipe (13) of heat exchanger casing (1), and is provided with blow off valve (14) in blow off pipe (13).

2. An automatic blowdown heat exchanger according to claim 1, wherein: the utility model provides a clean mechanism of intraductal blowdown (5) includes water tank (7), pressurization water pump (8), draft tube (9), electric valve one (10) and electric valve two (11), water tank (7) and pressurization water pump (8) are installed in parallel to the top outer wall of heat exchanger casing (1), and are connected with the water pipe between water tank (7) and pressurization water pump (8), the output fixedly connected with draft tube (9) of pressurization water pump (8), the inside that draft tube (9) deviate from pressurization water pump (8) port buckling extends to heat exchanger casing (1) is connected with wing type coiler (2), draft tube (9) correspond and are provided with electric valve two (11) with wing type coiler (2) junction top, be provided with electric valve one (10) between wing type coiler (2) correspond fluid input (3) and draft tube (9) junction.

3. An automatic blowdown heat exchanger according to claim 2, wherein: the connection part of the draft tube (9) and the fin type coil (2) is positioned between the fluid input end (3) and the fins on the fin type coil (2).

4. An automatic blowdown heat exchanger according to claim 2, wherein: the fin cleaning assembly (6) comprises transverse connecting pipes (15), vertical connecting pipes (16) and spray headers (17), two groups of transverse connecting pipes (15) are fixedly connected above the connecting positions of the two side outer walls of the draft pipe (9) and the fin type coiled pipe (2), two groups of transverse connecting pipes (15) are parallel to the fin type coiled pipe (2), a plurality of groups of vertical connecting pipes (16) are fixedly connected with the bottom outer walls of the transverse connecting pipes (15), a plurality of groups of vertical connecting pipes (16) are perpendicular to the transverse connecting pipes (15), the plurality of groups of vertical connecting pipes (16) are located on one side of the fin type coiled pipe (2) where fins are arranged, and a plurality of spray headers (17) are arranged on one side of the vertical connecting pipes (16) close to the fin type coiled pipe (2).

5. An automatic blowdown heat exchanger according to claim 4, wherein: the spray heads (17) are vertically arranged in a straight line on the vertical connecting pipe (16), every two spray heads (17) on the vertical connecting pipe (16) are in a group, the spray heads (17) are distributed and located obliquely above and obliquely below each layer of fins on the fin type coiled pipe (2), and the spray heads (17) are all in an oblique shape facing the fins on the fin type coiled pipe (2).

6. An automatic blowdown heat exchanger according to claim 4, wherein: the vertical connecting pipes (16) are transversely and equidistantly arranged on the transverse connecting pipes (15), and the interval between two adjacent vertical connecting pipes (16) in the vertical connecting pipes (16) is smaller than the spraying range of the spray header (17).