CN213577459U

CN213577459U - Steam circulation system

Info

Publication number: CN213577459U
Application number: CN202022526896.0U
Authority: CN
Inventors: 汪利民; 高波; 林明清; 吴传清
Original assignee: Hunan Zhongtai Special Equipment Co Ltd
Current assignee: Hunan Zhongtai Special Equipment Co Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-06-29
Anticipated expiration: 2030-11-04

Abstract

The utility model belongs to a steam recovery, in particular to a steam circulation system, which comprises a steam desorption device, a compressor unit and an adsorption analysis module, wherein the steam desorption device, the compressor unit and the adsorption analysis module are sequentially connected through a steam pipe to form a steam circulation loop, the steam circulation system also comprises a cold water tank and a steam generator, the cold water tank and the compressor unit are connected through a cooling water pipe to form a cooling water circulation loop, a hot water discharge port of the cold water tank is connected with a water inlet of the steam generator, and a steam discharge port of the steam generator is connected with a steam inlet of the adsorption analysis module through a steam pipe; the utility model discloses on original steam circulation return circuit's basis, retrieve compressor unit's heat through the cooling water, utilize the heat to be used for complementing steam circulation return circuit steam flow on the steam generator to required energy consumption when having reduced complementing steam circulation return circuit steam flow makes the whole energy-conservation degree of steam circulation system higher.

Description

Steam circulation system

Technical Field

The utility model belongs to a steam recovery specifically relates to a steam circulation system.

Background

When some solvents are recovered, there are several modes of absorption method, adsorption method and membrane separation method, among which, the adsorption method is a common method, and the steam desorption method is that after the solvent is adsorbed by the adsorption material, the saturated steam is used to heat and evaporate the desorption solvent. In order to reduce energy consumption, the following methods for recycling steam are proposed in the prior art (CN 208907101U): and (3) delivering the steam subjected to solvent desorption into a compressor for compression, delivering the compressed steam into an adsorption and desorption device to adsorb residual solvent in the steam, and then delivering the steam to be mixed with the solvent for heating, evaporation and desorption, so that the steam is recycled, and the steam is recycled. However, in such methods, the heat generated during the operation of the compressor is not utilized, and the overall energy saving degree needs to be improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a steam circulation system that energy-conservation degree is high.

The utility model discloses a content includes that steam desorption device, compressor unit and absorption resolve the module, connects gradually through the steam pipe between steam desorption device, compressor unit and the absorption resolve the module and form steam circulation return circuit, still includes cold water tank and steam generator, form cooling water circulation return circuit through cooling water piping connection between cold water tank and the compressor unit, and the hot water discharge port of cold water tank is connected with steam generator's water inlet, steam generator's steam discharge port passes through the steam pipe with the steam inlet who adsorbs the resolution module and is connected.

Furthermore, the compressor unit comprises at least two compressors which are connected in series through a steam pipeline, a heat conduction pipe is arranged on each compressor, the heat conduction pipe is coiled on the surface of each compressor and is attached to the surface of each compressor, a cold water outlet and a cold water return port are formed in each cold water tank, and two ends of each heat conduction pipe are respectively connected with the cold water outlet and the cold water return port through corresponding cooling water pipes.

Furthermore, the cold water tank comprises an outer shell and an inner shell arranged inside the outer shell, a cavity is arranged between the outer shell and the inner shell, and a heat insulation layer is filled in the cavity.

Furthermore, a temperature sensor is arranged in the cold water tank, and a first valve is arranged on the hot water discharge port.

Furthermore, a water filling port is arranged on the cold water tank and is connected with an external water supply device.

Furthermore, a second valve is arranged on the water filling port.

Furthermore, a water pump is arranged on the cooling water circulation loop.

Furthermore, a third valve is arranged on the steam pipe which is connected with the steam discharge port of the steam generator and the steam inlet of the adsorption and desorption module.

Furthermore, the adsorption and analysis module comprises at least two adsorption and analysis devices which are arranged in parallel.

Further, steam desorption device includes blending tank and evaporating pot, and the steam inlet of blending tank is connected with the steam outlet who adsorbs the analytic module, and the steam outlet of blending tank and the steam inlet of evaporating pot are connected, and the solvent entry and the solvent material feeding unit of blending tank are connected, and the steam outlet of evaporating pot is connected with compressor unit's steam inlet.

The beneficial effects of the utility model are that, on the basis of original steam circulation return circuit, retrieve compressor unit's heat through the cooling water, utilize the heat to be used for complementing steam circulation return circuit steam flow on the steam generator to required energy consumption when complementing steam circulation return circuit steam flow has been reduced, make the whole energy-saving of steam circulation system higher.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the heat pipe provided on the middle compressor of the present invention.

Fig. 3 is a schematic sectional view of the intercooler tank of the present invention.

In the figure, 10-steam desorption device; 11-a mixing tank; 12-an evaporation tank; 20-a compressor train; 21-a compressor; 22-a heat pipe; 30-a cold water tank; 31-a housing; 32-an inner shell; 33-a thermal insulation layer; 34-hot water discharge; 35-a temperature sensor; 36-a water filling port; 37-valve one; 38-valve two; 39-a water pump; 40-a steam generator; 50-adsorption and analysis module; 51-adsorption analysis device; 60-valve III; 70-solvent feeding device; 80-condensate tank.

Detailed Description

As shown in fig. 1-3, the utility model comprises a steam desorption device 10, a compressor unit 20 and an adsorption and desorption module 50, wherein the steam desorption device 10 is used for mixing a solvent mixture to be recovered with steam and heating the solvent for desorption, the compressor unit 20 is used for compressing the steam after the solvent is desorbed, and the adsorption and desorption module 50 is used for adsorbing the solvent carried in the steam; the steam desorption device 10, the compressor unit 20 and the adsorption and desorption module 50 are sequentially connected through a steam pipe to form a steam circulation loop, a solvent to be recovered is mixed with steam in the steam desorption device 10 and then is heated to evaporate the desorption solvent, then the steam is sent into the compressor unit 20 to be compressed and then is sent into the adsorption and desorption module 50 to adsorb the solvent mixed in the steam, and the adsorbed steam is sent into the steam desorption device 10 to be recycled; the utility model discloses still include cold water tank 30 and steam generator 40, form cooling water circulation loop through the cooling water piping connection between cold water tank 30 and the compressor unit 20, cooling water pipe has included cooling water inlet tube and cooling water wet return, cold water tank 30 provides cooling water to compressor unit 20 through the cooling water inlet tube, after the cooling water recovered the heat that compressor unit 20 during operation produced, flow back to in cold water tank 30 along the cooling water wet return, hot water discharge port 34 of cold water tank 30 is connected and is communicated with the water inlet of steam generator 40, after the cooling water multiple cycle in cold water tank 30 cooled down for compressor unit 20, the cooling water heaies up to hot water, hot water discharges to steam generator 40 in steam generator 40 and uses, steam generator 40's steam discharge port passes through the steam pipe with the steam inlet of absorption analysis module 50 and is connected, at original steam cyclic utilization's in-process, the flow of steam may be insufficient and the steam generated by the steam generator 40 is used to supplement the steam flow in the steam cycle.

The utility model provides a steam circulation system, on the basis of original steam circulation return circuit, retrieve compressor unit 20's heat through the cooling water, utilize the heat to be used for complementing steam circulation return circuit steam flow on steam generator 40 to required energy consumption when having reduced complementing steam circulation return circuit steam flow makes the whole energy-saving of steam circulation system higher.

In the utility model, the compressor unit 20 comprises at least two compressors 21 connected in series through a steam pipeline, the compressors 21 connected in series are used for pressurizing steam in sequence, a heat conducting pipe 22 is arranged on a single compressor 21, and the heat conducting pipe 22 is coiled on the surface of the single compressor 21 and attached to the surface of the compressor 21, so that heat generated during the operation of the compressor 21 can be transferred to the heat conducting pipe 22; among them, in order to ensure a higher heat recovery rate, the winding pitch may be reduced at a position where the heat generated during the operation of the driving mechanism of the compressor 21 is higher, and the heat pipe 22 is preferably made of aluminum, and has a good heat dissipation performance. Be provided with the play cold water mouth and the return cold mouth of a river the same with heat pipe 22 quantity on the cold water tank 30, the cooling water inlet tube is passed through at single heat pipe 22 both ends, the cooling water wet return respectively with the play cold water mouth that corresponds, the return cold mouth of a river is connected, during the cooling water in the cold water tank 30 gets into heat pipe 22 along the cooling water inlet tube, take away in the heat back through the cooling water wet return backward flow to cold water tank 30, be convenient for the outflow and the backward flow of cooling water, go out the cold water mouth and set up the lower extreme at the cold water tank, the return cold mouth of a river sets up the upper end at. The utility model discloses a wind on compressor 21 and set up heat pipe 22, compare with the compressor 21 casing on open the channel, the utility model discloses the cost is lower to it is more convenient to maintain.

The utility model discloses in, cold water storage cistern 30 includes shell 31 and sets up at the inside inner shell 32 of shell 31, be provided with the cavity between shell 31 and the inner shell 32, this cavity intussuseption is filled with insulating layer 33, can reduce the speed that heat distributes in cold water storage cistern 30.

The utility model discloses in, be provided with temperature sensor 35 in the cold water storage cistern 30, temperature sensor 35 electric connection external controller, temperature sensor 35 are used for the temperature of the water in the real-time detection cold water storage cistern 30, be provided with valve 37 on the hot water discharge port 34. The cooling water circulation in the cold water tank 30 cools the compressor unit 20, recovers heat of the compressor unit 20, and opens the first valve 37 when water in the cold water tank 30 reaches a preset temperature, so that hot water is discharged to the steam generator 40. Preferably, the first valve 37 is a solenoid valve, and the first valve 37 is electrically connected to an external controller.

The utility model discloses in, be provided with filler 36 on the cold water storage cistern 30, filler 36 is connected with outside water supply installation, and hot water discharge back in the cold water storage cistern 30 adds water through filler 36. The second valve 38 is disposed on the water filling port 36, and when water is filled in the cold water tank 30, the second valve 38 is opened, preferably, the second valve 38 is an electromagnetic valve, and the second valve 38 is electrically connected to an external controller.

The utility model discloses in, be provided with water pump 39 on the condenser tube, specifically for setting up on the cooling water wet return, water pump 39 is used for carrying the cooling water, makes the cooling water flow on along cooling water circulation circuit.

In the utility model, a third valve 60 is arranged on the steam pipe connecting the steam discharge port of the steam generator 40 and the steam inlet of the adsorption and desorption module 50, and the third valve 60 is opened when the steam is supplemented; preferably, the third valve 60 is a solenoid valve, and the third valve 60 is electrically connected to an external controller.

The utility model discloses in, adsorb analytic module 50 including two at least parallelly connected absorption analytic device 51 that set up, through parallelly connected two at least absorption analytic device 51 that set up, can shunt the adsorbed steam that carries on, guarantee adsorbed effect and efficiency.

The utility model discloses in, steam desorption device 10 includes blending tank 11 and evaporating pot 12, and the steam inlet of blending tank 11 is connected with the steam outlet who adsorbs analytic module 50, and the steam outlet of blending tank 11 and the steam inlet of evaporating pot 12 are connected, and the solvent entry of blending tank 11 is connected with solvent material feeding unit 70, and solvent material feeding unit 70 is used for carrying the solvent mixture of treating the recovery in to blending tank 11, and the steam outlet of evaporating pot 12 is connected with the steam inlet of compressor unit 20. When the steam circulation loop works, a solvent mixture to be recovered enters the mixing tank 11, is mixed with steam sent from the adsorption and desorption module 50 in the mixing tank 11, then the part carried by the steam enters the evaporation tank 12 to be heated and evaporated, and the part not carried by the steam flows back to the condensate tank 80 to be condensed by the condensate tank 80, wherein the part condensed into liquid is discharged to the first external collecting device, and the non-condensed gas is discharged to the external processing device; the mixture that gets into in the evaporating pot 12 heats the evaporation, further carries the solvent through saturated vapor heating desorption, and the concentrate after the desorption has a small part to get into in the blending tank 11, most concentrate discharges to outside collection device two, and the part carried by saturated vapor then gets into after the compression of compressor unit 20 and adsorbs among the analytic module 50 of absorption, and the condensate after the absorption analytic then discharges to outside collection device three, and steam row is to 11 inner loop uses of blending tank.

Claims

1. The utility model provides a steam circulation system, characterized by, including steam desorption device (10), compressor unit (20) and adsorb analysis module (50), connect gradually through the steam pipe between steam desorption device (10), compressor unit (20) and the absorption analysis module (50) and form steam circulation return circuit, still include cold water tank (30) and steam generator (40), form cooling water circulation return circuit through the condenser tube connection between cold water tank (30) and compressor unit (20), and the hot water discharge port (34) of cold water tank (30) are connected with the water inlet of steam generator (40), the steam discharge port of steam generator (40) passes through the steam pipe with the steam inlet that adsorbs analysis module (50) and is connected.

2. The steam circulation system as set forth in claim 1, wherein the compressor unit (20) comprises at least two compressors (21) connected in series through a steam pipeline, a heat conducting pipe (22) is disposed on the compressor (21), the heat conducting pipe (22) is coiled on the surface of the compressor (21) and attached to the surface of the compressor (21), a cold water outlet and a cold water return outlet are disposed on the cold water tank (30), and two ends of the heat conducting pipe (22) are respectively connected with the cold water outlet and the cold water return outlet through corresponding cooling water pipes.

3. The steam cycle system as set forth in claim 1, wherein the cold water tank (30) comprises an outer shell (31) and an inner shell (32) disposed inside the outer shell (31), a cavity being disposed between the outer shell (31) and the inner shell (32), the cavity being filled with a heat insulating layer (33).

4. A steam cycle system according to claim 1, wherein a temperature sensor (35) is provided in the cold water tank (30) and a first valve (37) is provided in the hot water discharge port (34).

5. Steam cycle system according to claim 4, characterized in that the cold water tank (30) is provided with a filler (36), the filler (36) being connected to an external water supply.

6. A steam cycle system according to claim 5, wherein a second valve (38) is provided at the filler (36).

7. A steam cycle system according to claim 1, characterized in that a water pump (39) is provided in the cooling water circulation circuit.

8. The steam cycle system as set forth in claim 1, wherein a third valve (60) is provided on the steam pipe connecting the steam discharge port of the steam generator (40) and the steam inlet of the adsorption and desorption module (50).

9. A steam cycle system according to any of claims 1-8, characterized in that the adsorption and desorption module (50) comprises at least two adsorption and desorption devices (51) arranged in parallel.

10. The steam cycle system as claimed in any one of claims 1 to 8, wherein the steam desorption device (10) comprises a mixing tank (11) and an evaporation tank (12), a steam inlet of the mixing tank (11) is connected with a steam outlet of the adsorption and desorption module (50), a steam outlet of the mixing tank (11) is connected with a steam inlet of the evaporation tank (12), a solvent inlet of the mixing tank (11) is connected with the solvent feeding device (70), and a steam outlet of the evaporation tank (12) is connected with a steam inlet of the compressor unit (20).