CN220850024U

CN220850024U - CCUS compressor capable of efficiently utilizing CO2

Info

Publication number: CN220850024U
Application number: CN202322814841.3U
Authority: CN
Inventors: 肖祖银
Original assignee: HUBEI TONGFANG HI-TECH PUMP CO LTD
Current assignee: HUBEI TONGFANG HI-TECH PUMP CO LTD
Priority date: 2023-10-20
Filing date: 2023-10-20
Publication date: 2024-04-26
Anticipated expiration: 2033-10-20

Abstract

The utility model relates to the technical field of compressors, in particular to a CCUS compressor capable of efficiently utilizing CO2, which comprises a shell, wherein a shaft rod is rotatably inserted into the shell, a primary compression cavity and a secondary compression cavity which are mutually independent are respectively arranged in the shell, the volume of the secondary compression cavity is smaller than that of the primary compression cavity, a primary impeller and a secondary impeller which are respectively positioned in the primary compression cavity and the secondary compression cavity are sleeved on the shaft rod, and a primary air outlet hole at the air outlet end of the primary compression cavity is communicated with the air inlet end of the secondary compression cavity. After the CO2 enters the primary compression cavity for primary compression, the CO2 enters the secondary compression cavity for secondary compression through the drainage cavity, and the secondary impeller and the primary impeller can compress the CO2 under larger pressure when coaxially rotating, so that the collecting container with the same volume can store more CO2, and the cost of a series of processes such as subsequent transportation, long-term storage and the like is reduced.

Description

CCUS compressor capable of efficiently utilizing CO2

Technical Field

The utility model relates to the technical field of compressors, in particular to a CCUS compressor capable of efficiently utilizing CO 2.

Background

Carbon Capture, utilization and sequestration (CCUS) refers to the process of separating CO2 from industrial processes, energy utilization or the atmosphere, directly utilizing or injecting it into a formation to achieve permanent CO2 emission reduction.

The carbon emission is mainly divided into high-concentration emission such as coal chemical industry, hydrogen production and the like and medium-low concentration emission such as petrochemical industry, steelmaking, coal burning, gas and the like, and the carbon emission requirements still cannot be met only by carbon reduction measures such as improving the energy utilization efficiency, increasing the installation proportion of new energy and the like because the energy structure mainly comprising fossil energy such as petroleum, coal and the like in China is difficult to change in a short period, so that the CCUS technology still needs to be developed.

The existing compressor for conveying CO2 in the CCUS system is subjected to single-stage compression, so that the storage density is still smaller after the compressor is compressed, more collection containers are needed to be occupied during storage, the cost of a series of processes such as subsequent transportation, long-term storage and the like is increased, the economy of recycling the CO2 is intangibly reduced, and the development of the CCUS is affected.

Disclosure of utility model

In order to solve the defects of the prior art, the utility model provides a CCUS compressor capable of efficiently utilizing CO2, which comprises a shell, wherein a shaft rod is rotatably inserted into the shell, a primary compression cavity and a secondary compression cavity which are mutually independent are respectively arranged in the shell, the volume of the secondary compression cavity is smaller than that of the primary compression cavity, a primary impeller and a secondary impeller which are respectively arranged in the primary compression cavity and the secondary compression cavity are sleeved on the shaft rod, and a primary air outlet hole at the air outlet end of the primary compression cavity is communicated with the air inlet end of the secondary compression cavity.

Preferably, the right baffle, the middle baffle and the left baffle are fixedly arranged in the shell, the right baffle, the middle baffle and the left baffle divide the inner cavity of the shell into a first-stage compression cavity and a second-stage compression cavity, a first-stage air inlet communicated with the air inlet pipe and the first-stage compression cavity is formed in the right baffle, a drainage cavity is formed in the middle baffle, a first-stage air outlet communicated with the first-stage compression cavity is formed in the middle baffle, a second-stage air inlet communicated with the second-stage compression cavity is formed in the middle baffle, and a second-stage air outlet communicated with the air outlet is formed in the second-stage compression cavity and the air outlet.

Preferably, the diameters of the primary compression chamber and the secondary compression chamber are equal, and the width of the secondary compression chamber is smaller than that of the primary compression chamber.

Preferably, a double-row ball bearing is fixedly arranged at one end in the shell, and the double-row ball bearing wraps the shaft rod.

Preferably, mechanical sealing structures are fixedly arranged on two opposite sides of the right partition plate and the left partition plate in the shell respectively.

Preferably, the sealing rings for wrapping the shaft rod are fixedly arranged on the right partition plate, the middle partition plate and the left partition plate, and a plurality of elastic sealing rings are sleeved on the outer sides of the sealing rings.

The utility model has the following beneficial effects:

After the CO2 enters the primary compression cavity for primary compression, the CO2 enters the secondary compression cavity for secondary compression through the drainage cavity, and because the cavity volume of the secondary compression cavity is smaller than that of the primary compression cavity, the pressure of the CO2 compressed by the secondary impeller and the primary impeller when the secondary impeller and the primary impeller coaxially rotate is larger, the compression pressure of the CO2 is further improved, and the collecting container with the same volume can store more CO2, so that the cost of a series of processes such as subsequent transportation, long-term storage and the like is reduced, the economy of the CO2 recovery in the utilization field is improved, and the development of the CCUS is assisted.

Drawings

Fig. 1 is a schematic view of the overall structure provided by the present utility model.

Fig. 2 is a schematic view of the structure of the first stage compression chamber provided by the present utility model.

In fig. 1-2, the structures represented by the various numbers are listed below:

1. A housing; 2. a shaft lever; 3. a middle partition plate; 4. a first stage compression chamber; 5. a secondary compression chamber; 6. a primary impeller; 7. a secondary impeller; 8. a right partition; 81. a first-stage air inlet; 9. a drainage cavity; 10. a first-stage air outlet hole; 11. an air inlet pipe; 12. an exhaust pipe; 13. double-row ball bearings; 14. and a left partition board.

Detailed Description

The principles and features of the present utility model are described below with examples only to illustrate the present utility model and not to limit the scope of the present utility model.

It is noted that when an element or component is referred to as being "connected," "positioned," "assembled" to another element or component, it can be directly on the other element or component or intervening elements and components may also be present. The terms "left", "right", "upper", "lower" and the like are used herein for illustrative purposes only.

In a specific embodiment, as shown in fig. 1-2, a CCUS compressor for efficiently utilizing CO2 includes a casing 1, a shaft lever 2 is rotatably inserted in the casing 1, a primary compression cavity 4 and a secondary compression cavity 5 which are independent from each other are separated in the casing 1, the volume of the secondary compression cavity 5 is smaller than that of the primary compression cavity 4, a primary impeller 6 and a secondary impeller 7 which are respectively located in the primary compression cavity 4 and the secondary compression cavity 5 are sleeved on the shaft lever 2, and a primary air outlet hole 10 at the air outlet end of the primary compression cavity 4 is communicated with the air inlet end of the secondary compression cavity 5.

In this embodiment, right baffle 8, middle baffle 3 and left baffle 14 of fixed mounting in casing 1, right baffle 8, middle baffle 3 and left baffle 14 separate casing 1 inner chamber first order compression chamber 4 and second grade compression chamber 5, set up the one-level inlet port 81 with intake pipe 11 and first order compression chamber 4 intercommunication on the right baffle 8, set up drainage chamber 9 in the middle baffle 3, set up the one-level venthole 10 of drainage chamber 9 and first order compression chamber 4 intercommunication on the middle baffle 3, set up the second grade inlet port of drainage chamber 9 and second grade compression chamber 5 intercommunication on the middle baffle 3, set up the second grade venthole of second grade compression chamber 5 and blast pipe 12 intercommunication on the left baffle 14. After CO2 enters the shell 1 from the air inlet pipe 11, the primary impeller 6 rotates to suck CO2 into the primary compression cavity 4 through the primary air inlet hole 81 for primary compression, a primary air outlet hole 10, a drainage cavity 9 and a secondary air inlet hole sequentially enter the secondary compression cavity 5 after compression, the secondary impeller 7 rotates to compress CO2 in the secondary compression cavity 5 again, and finally the CO2 is discharged through the secondary air outlet hole and the exhaust pipe 12.

In this embodiment, the diameters of the primary compression chamber 4 and the secondary compression chamber 5 are equal, and the width of the secondary compression chamber 5 is smaller than the width of the primary compression chamber 4. The assembly is more convenient and simple.

In this embodiment, a double-row ball bearing 13 is fixedly mounted at one end in the housing 1, and the double-row ball bearing 13 wraps the shaft rod 2. The axial force unbalance of the primary impeller 6 and the secondary impeller 7 is prevented from causing the movement, the friction between the primary impeller 6, the secondary impeller 7 and the right baffle plate 8, the middle baffle plate 3 or the left baffle plate 14 is prevented from causing damage, and the arrangement of the double-row ball bearing 13 can balance the axial force of the primary impeller 6 and the secondary impeller 7.

In this embodiment, one end of the shaft rod 2 far away from the double-row ball bearing 13 extends to the outer side of the housing 1 for being in transmission connection with a driving motor, and mechanical sealing structures are respectively and fixedly installed at two opposite sides of the right partition plate 8 and the left partition plate 14 in the housing 1 so as to seal a gap between the housing 1 and the shaft rod 2 and prevent leakage of working fluid and CO 2.

Further, the sealing rings wrapping the shaft lever 2 are fixedly arranged on the right partition plate 8, the middle partition plate 3 and the left partition plate 14, a plurality of elastic sealing rings are sleeved on the outer sides of the sealing rings, the elastic sealing rings tighten up gaps between the sealing rings and the shaft lever 2, and the pressure loss caused by gas leakage is prevented.

Specifically, in this embodiment, the working fluids in the 4 and 5 are water.

To sum up: after the CO2 enters the primary compression cavity 4 for primary compression, the CO2 enters the secondary compression cavity 5 for secondary compression through the drainage cavity 9, and because the cavity volume of the secondary compression cavity 5 is smaller than that of the primary compression cavity 4, the pressure of the CO2 can be compressed by the secondary impeller 7 and the primary impeller 6 when the secondary impeller 7 and the primary impeller 6 coaxially rotate, the compression pressure of the CO2 is further improved, and the collecting container with the same volume can store more CO2, so that the cost of a series of processes such as subsequent transportation, long-term storage and the like is reduced, the economy of the CO2 recovery in the utilization field is improved, the development of the auxiliary CCUS is improved, and the nominal pressure range of output gas can reach 0.6-1.2MPa (G) through the CO2 compressed by the compressor.

The above is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way; those skilled in the art can smoothly practice the utility model as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings, without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims

1. The utility model provides a CCUS compressor of CO2 high-efficient utilization which characterized in that: including casing (1), axostylus axostyle (2) rotatable grafting is in casing (1), it has one-level compression chamber (4) and two-stage compression chamber (5) of mutual independence to divide in casing (1), the volume of two-stage compression chamber (5) is less than the volume of one-level compression chamber (4), one-level impeller (6) and two-stage impeller (7) that are located one-level compression chamber (4) and two-stage compression chamber (5) respectively have been cup jointed on axostylus axostyle (2), one-level venthole (10) of the end that gives vent to anger of one-level compression chamber (4) communicate with the inlet end of two-stage compression chamber (5).

2. A CCUS compressor for efficient CO2 utilization as defined in claim 1 wherein: the utility model discloses a novel air conditioner, including casing (1), right baffle (8), middle baffle (3) and left baffle (14) of fixed mounting in casing (1), right baffle (8), middle baffle (3) and left baffle (14) separate one-level compression chamber (4) and two-level compression chamber (5) with casing (1) inner chamber, set up on right baffle (8) with intake pipe (11) and one-level compression chamber (4) one-level inlet port (81) of intercommunication, set up drainage chamber (9) in middle baffle (3), set up on middle baffle (3) drainage chamber (9) and one-level venthole (10) of one-level compression chamber (4) intercommunication, set up the second grade inlet port of drainage chamber (9) and two-level compression chamber (5) intercommunication on middle baffle (3), set up the second grade venthole of two-level compression chamber (5) and blast pipe (12) intercommunication on left baffle (14).

3. A CCUS compressor for efficient CO2 utilization as defined in claim 1 wherein: the diameters of the primary compression cavity (4) and the secondary compression cavity (5) are equal, and the width of the secondary compression cavity (5) is smaller than that of the primary compression cavity (4).

4. A CCUS compressor for efficient CO2 utilization as defined in claim 1 wherein: one end in casing (1) is fixed mounting has biserial ball bearing (13), biserial ball bearing (13) parcel axostylus axostyle (2).

5. A CCUS compressor for efficient CO2 utilization as defined in claim 2 wherein: mechanical sealing structures are fixedly arranged on two opposite sides of the right partition plate (8) and the left partition plate (14) in the shell (1).

6. A CCUS compressor for efficient CO2 utilization as defined in claim 2 wherein: and sealing rings for wrapping the shaft rod (2) are fixedly arranged on the right partition plate (8), the middle partition plate (3) and the left partition plate (14), and a plurality of elastic sealing rings are sleeved on the outer sides of the sealing rings.