CN215809461U

CN215809461U - Evaporation type absorber

Info

Publication number: CN215809461U
Application number: CN202121445226.4U
Authority: CN
Inventors: 陈何根
Original assignee: Anhui Pupan Energy Technology Co ltd
Current assignee: Anhui Pupan Energy Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-02-11
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to an evaporative absorber, which belongs to the technical field of absorbers and comprises a shell, a circulating water pump, a water collector and a fan, wherein a plurality of groups of heat exchange tubes which are vertically arranged are arranged in a heat exchange cavity in the shell, liquid distributors in the heat exchange tubes are respectively arranged at the top ends of the heat exchange tubes, liquid distributors outside the heat exchange tubes are arranged at the upper half part of the outer surface of the heat exchange tubes, a filler is arranged below the heat exchange cavity, a bottom plate is arranged at the bottom end of the shell, a water containing area is arranged between the filler and the bottom plate, the water inlet end of the circulating water pump is connected to the bottom end of the water containing area through a water pipe, the water outlet end of the circulating water pump is connected to the upper part of the heat exchange cavity through a water pipe, and a scale cleaning hole is arranged at the other side of the bottom end of the water containing area. According to the evaporative absorber, the heat exchange tubes are vertically arranged in the heat exchange cavity, so that the overall structure is compact, the occupied area can be reduced, dirt in the tubes can be conveniently cleaned, the dirt in the tubes directly falls on the filler or the bottom plate, and the dirt cleaning holes are opened during maintenance, so that the cleaning is convenient.

Description

Evaporation type absorber

Technical Field

The utility model belongs to the technical field of absorbers, and particularly relates to an evaporative absorber.

Background

The waste heat refrigeration is a technology for driving a compression type or absorption type refrigerator to refrigerate by using gas or waste gas and waste liquid in the production process and heat discharged by some power machines as energy, and the waste heat refrigeration can help people to recover waste heat, so that the energy consumption is saved, and the cost is reduced. The existing absorption refrigeration system can effectively utilize industrial waste heat so as to achieve the purpose of recycling energy. Evaporative absorbers are the primary heat exchange device in absorption refrigeration systems. In a circulating water system of an existing evaporative absorber, due to factors such as water scaling or external impurities, impurities such as suspended matters and particles are generated in water and can be attached to a circulating water side pipeline, and cleaning is inconvenient. Accordingly, an evaporative absorber is proposed.

Disclosure of Invention

The utility model aims to solve the problems and provide an evaporative absorber which is simple in structure and reasonable in design.

The utility model realizes the purpose through the following technical scheme:

an evaporative absorber comprises a shell, a lean solution inlet pipe, a rich solution outlet pipe, an air inlet pipe, a ventilation opening, a circulating water pump, a water collector and a fan, a heat exchange cavity is arranged in the shell, the lean solution inlet pipe, the rich solution outlet pipe and the air inlet pipe are communicated with the inside of the heat exchange cavity, a plurality of groups of heat exchange tubes which are vertically arranged are arranged in the heat exchange cavity, liquid distributors in the heat exchange tubes are arranged at the top ends of the heat exchange tubes, the upper half part of the outer surface of the heat exchange tube is provided with an outer liquid distributor, the lower part of the heat exchange cavity is provided with a filler, a bottom plate is arranged at the bottom end of the shell, a water containing area is arranged between the filler and the bottom plate, the vent is communicated with the inside of the water containing area, the water inlet end of the circulating water pump is connected to the bottom end of the water containing area through a water pipe, the water outlet end of the circulating water pump is connected to the upper portion of the heat exchange cavity through a water pipe, and the other side of the bottom end of the water containing area is provided with a scale cleaning hole.

As a further optimization scheme of the utility model, the fan is positioned at the upper end of the shell, the water collector is positioned below the fan, and the heat exchange cavity is positioned below the water collector.

As a further optimization scheme of the utility model, an air duct is arranged on the outer side of the fan, and the edge of the air duct is hermetically connected with the edge of the upper end of the shell.

As a further optimization scheme of the utility model, the upper end of the heat exchange cavity is provided with a first partition plate, the bottom end of the heat exchange cavity is provided with a third partition plate, a second partition plate is arranged between the first partition plate and the third partition plate, the liquid distributor outside the pipe is positioned in the heat exchange pipe and a hole penetrating through the second partition plate, and the upper end and the lower end of the heat exchange pipe are respectively positioned on the first partition plate and the third partition plate

On the board.

As a further optimization scheme of the utility model, the air inlet pipe is arranged at a position close to the bottom end of the heat exchange cavity, the rich solution outlet pipe is positioned below the air inlet pipe, the air inlet pipe and the rich solution outlet pipe are both positioned above the third partition plate, and the lean solution inlet pipe is positioned between the second partition plate and the first partition plate.

As a further optimization scheme of the utility model, the outlet of the water outlet end water pipe of the circulating water pump is positioned above the first partition plate.

As a further optimization scheme of the utility model, the ventilation openings are arranged at two ends of the outer wall of the water collecting tank, and the ventilation openings are positioned above the inlet of the water pipe at the water inlet end of the circulating water pump.

The utility model has the beneficial effects that: according to the evaporative absorber, the heat exchange tubes are vertically arranged in the heat exchange cavity, so that the overall structure is compact, the occupied area can be reduced, dirt in the tubes can be conveniently cleaned, the rods can be inserted into the tubes or high-pressure water is sprayed into the tubes when the evaporative absorber is used, the dirt in the tubes directly falls on the filler or the bottom plate, the water can completely fall on the bottom plate after being flushed by the water, and the dirt cleaning holes are opened during maintenance, so that the evaporative absorber is convenient to clean and has a good application prospect.

Drawings

Fig. 1 is a schematic view of the overall structure of an evaporative absorber of the present invention.

In the figure: 1. a lean solution inlet pipe; 2. a liquid distributor outside the pipe; 3. a housing; 4. a first separator; 5. a liquid distributor in the tube; 6. a water collector; 7. a fan; 8. an air duct; 9. a second separator; 10. a heat exchange pipe; 11. a third partition plate; 12. a filler; 13. a water circulating pump; 14. a base plate; 15. cleaning the scale holes; 16. a vent; 17. a rich solution outlet pipe; 18. an air inlet pipe.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

As shown in fig. 1, the evaporative absorber of this embodiment includes a housing 3, a lean solution inlet pipe 1, a rich solution outlet pipe 17, an inlet pipe 18, a vent 16, a circulating water pump 13, a water collector 6, and a fan 7, wherein the fan 7 is located at the upper end of the housing 3, the ventilation enhances evaporation, an air duct 8 is disposed outside the fan 7, the ventilation efficiency is increased, the edge of the air duct 8 is hermetically connected with the edge of the upper end of the housing 3, the water collector 6 is located below the fan 7, the water collector 6 collects small droplets entrained in air, a heat exchange cavity is disposed inside the housing 3, the lean solution outlet pipe 1, the rich solution outlet pipe 17, and the inlet pipe 18 are all communicated with the inside of the heat exchange cavity, a plurality of sets of vertically disposed heat exchange pipes 10 are disposed in the heat exchange cavity, an in-pipe liquid distributor 5 is disposed at the top end of each heat exchange pipe 10, the heat exchange pipes 10 and the in-pipe liquid distributor 5 are hollow structures, an outer pipe liquid distributor 2 is disposed at the upper half portion of the outer surface of each heat exchange pipe 10, a filler 12 is arranged below the heat exchange cavity, a bottom plate 14 is arranged at the bottom end of the shell 3, a water containing area is arranged between the filler 12 and the bottom plate 14, and a vent 16 is communicated with the water containing area

Inside the water area, vent 16 sets up at flourishing water district outer wall both ends, vent 16 is located circulating water pump 13's the end of intaking water pipe import top, circulating water pump 13's the end of intaking is connected to the bottom in flourishing water area through the water pipe, circulating water pump 13's the end of exhaling is connected to heat transfer chamber top through the water pipe, the bottom opposite side in flourishing water area is equipped with scale removal hole 15, when the clearance, can insert in heat exchange tube 10 with the shaft-shaped thing, or spout high pressure water, clearance intraductal dirt, the dirt falls on filler 12 or bottom plate 14, the water-washed can all fall on bottom plate 14, then clears away through scale removal hole 15 or vent 16.

The upper end of the heat exchange cavity is provided with a first partition plate 4, the bottom end of the heat exchange cavity is provided with a third partition plate 11, a second partition plate 9 is arranged between the first partition plate 4 and the third partition plate 11, the liquid distributor 2 outside the heat exchange tube is positioned in the heat exchange tube 10 and a hole penetrating through the second partition plate 9, the upper end and the lower end of the heat exchange tube 10 are respectively positioned on the first partition plate 4 and the third partition plate 11, the air inlet tube 18 is arranged at a position close to the bottom end of the heat exchange cavity, the rich solution outlet tube 17 is positioned below the air inlet tube 18, the air inlet tube 18 and the rich solution outlet tube 17 are both positioned above the third partition plate 11, the poor solution inlet tube 1 is positioned between the second partition plate 9 and the first partition plate 4, and the water outlet pipe at the water outlet end of the circulating water pump 13 is positioned above the first partition plate 4.

When in operation, the circulating pump 13 and the fan 7 are simultaneously started, circulating water enters the circulating water pump 13 from the bottom of the water containing area, is pumped to the first clapboard 4, passes through the liquid distributor 5 in the pipe, and forms falling film evaporation cooling in the pipe of the heat exchange pipe 10, the incompletely evaporated circulating water flows downwards along the outer side wall of the heat exchange pipe 10, part of water flow falls on the packing 12, because of the operation of the fan 7, the water flow can fully exchange heat with air pumped in through the ventilation opening 16 on the packing 12, the water and the air on the packing 12 continue to transfer heat transfer mass on the packing, then fall on the bottom plate 14 of the water containing area, finally enters the inner side of the absorber again through the circulating pump 13, meanwhile, the poor solution inlet pipe 1 is on the second clapboard 9, forms falling film on the outer shape of the heat exchange pipe 10 through the liquid distributor 2, absorbs ammonia gas in the system from 18, and upwards along the inner side wall of the heat exchange pipe 10, the poor ammonia solution is absorbed by the flowing-down poor ammonia solution, the poor ammonia solution exchanges heat with cooling water on the outer side through the heat exchange tube 10, the poor ammonia solution after ammonia gas absorption is converted into an ammonia-rich solution and flows out of the rich solution outlet tube 17, the whole absorption process is a heat release process, heat is transferred to circulating water through the heat exchange tube 10, in the process, water drops pumped away by the fan 7 are intercepted by the water collector 6 and then drop on the first partition plate 4, and finally flow down to enter circulation, so that the heat exchange efficiency is improved.

The rich ammonia solution that flows out gets into absorption refrigeration system, is squeezed into the generator by the circulating pump, decomposes into ammonia and poor ammonia solution under the effect of heat source, and the ammonia gets into the condenser, and poor ammonia solution gets into this device through the throttle valve once more and circulates, and the ammonia through the condenser gets into the evaporimeter after being decompressed by the relief pressure valve, then gets into this device once more and circulates, accomplishes whole endless process.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. An evaporative absorber comprises a shell (3), a lean solution inlet pipe (1), a rich solution outlet pipe (17), an air inlet pipe (18), a vent (16), a circulating water pump (13), a water collector (6) and a fan (7), and is characterized in that a heat exchange cavity is arranged inside the shell (3), the lean solution inlet pipe (1), the rich solution outlet pipe (17) and the air inlet pipe (18) are all communicated with the inside of the heat exchange cavity, a plurality of groups of vertically arranged heat exchange pipes (10) are arranged in the heat exchange cavity, an in-pipe liquid distributor (5) is arranged at the top end of each heat exchange pipe (10), an out-pipe liquid distributor (2) is arranged on the upper half part of the outer surface of each heat exchange pipe (10), a bottom plate (14) is arranged at the bottom end of the shell (3), a water containing area is arranged between each heat exchange cavity and the bottom plate (14), and the vent (16) is communicated with the inside of the water containing area, the water inlet end of the circulating water pump (13) is connected to the bottom end of the water containing area through a water pipe, and the water outlet end of the circulating water pump (13) is connected to the upper portion of the heat exchange cavity through a water pipe.

2. An evaporative absorber as claimed in claim 1, wherein a packing (12) is provided below the heat exchange chamber.

3. An evaporative absorber as claimed in claim 1, wherein the fan (7) is located at the upper end of the housing (3), the water collector (6) is located below the fan (7), and the heat exchange chamber is located below the water collector (6).

4. An evaporative absorber as claimed in claim 1, wherein an air duct (8) is provided outside the fan (7), and the edge of the air duct (8) is hermetically connected with the upper end edge of the housing (3).

5. An evaporative absorber according to claim 2, wherein the upper end of the heat exchange chamber is provided with a first baffle plate (4), the bottom end of the heat exchange chamber is provided with a third baffle plate (11), a second baffle plate (9) is arranged between the first baffle plate (4) and the third baffle plate (11), the external liquid distributor (2) is arranged in the heat exchange tube (10) and the hole passing through the second baffle plate (9), and the upper end and the lower end of the heat exchange tube (10) are respectively arranged on the first baffle plate (4) and the third baffle plate (11).

6. Evaporative absorber according to claim 5, wherein the inlet pipe (18) is arranged in the heat exchange chamber near the bottom end, the rich solution outlet pipe (17) is located below the inlet pipe (18), and the inlet pipe (18) and the rich solution outlet pipe (17) are both located above the third partition (11), and the lean solution inlet pipe (1) is located between the second partition (9) and the first partition (4).

7. Evaporative absorber according to claim 5, characterized in that the outlet of the water outlet end of the circulating water pump (13) is located above the first partition (4).

8. An evaporative absorber as claimed in claim 1, wherein the vents (16) are located at either end of the outer wall of the water containing zone, the vents (16) being located above the inlet of the water pipe at the water inlet end of the circulating water pump (13).

9. An evaporative absorber as claimed in any one of claims 1 to 8, wherein the bottom end of the water containing zone is provided with scale cleaning apertures (15).