CN208650933U - The working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system - Google Patents
The working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system Download PDFInfo
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- CN208650933U CN208650933U CN201821330831.5U CN201821330831U CN208650933U CN 208650933 U CN208650933 U CN 208650933U CN 201821330831 U CN201821330831 U CN 201821330831U CN 208650933 U CN208650933 U CN 208650933U
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Abstract
The utility model discloses the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system, the device includes heat source, slewing bypass, high pressure storage tank, low pressure storage tank, main line, valve, high-pureness carbon dioxide gas source, vacuum pump, main compressor, recompression machine, high pressure turbine, low pressure turbine, high temperature regenerator, cryogenic regenerator, forecooler, by controlling the on-off of valve and the start and stop of vacuum pump on each pipeline of the device, realize the air in the connected region of the non-rotating equipment of supercritical carbon dioxide system by repeatedly suction, inflation, resting cycles, finally it is replaced by the supercritical carbon dioxide working medium of high-purity, the utility model can overcome high temperature regenerator, cryogenic regenerator, forecooler, dead angle air in the equipment such as heat source is not easy the unfavorable difficulty replaced, keep supercritical carbon dioxide system non-rotating Working medium purity in equipment is up to 99.9% or more.
Description
Technical field
The utility model relates to supercritical carbon dioxide system working medium replacement technique fields, and in particular to one kind overcritical two
The working medium displacement apparatus of the non-rotating environment division of carbonoxide system.
Background technique
Supercritical carbon dioxide system is to the more demanding of carbon dioxide purity, generally 99.9% or more, therefore super
Before the operation of critical carbon dioxide system, need the air displacement in supercritical carbon dioxide system to be high-pureness carbon dioxide,
To prevent the runnability because of the excessively high interference system of residual air amount accounting.It is replaced in supercritical carbon dioxide system in working medium
There are following three purity that will affect working medium displacement in the process: 1, supercritical carbon dioxide turbomachine equipment, heat exchange
The device memories such as device form vortex at dead angle, air-flow disengaging above equipment at dead angle, and air is not easy to flow out out of dead angle,
The working medium purity of requirement cannot effectively be reached；2, which type of working medium supercritical carbon dioxide system working medium displacement needs to build
Displacement apparatus；3, tonifying Qi and exhaust position must not generate contradiction with the direction of motion of working medium in supercritical carbon dioxide system.
Have no that the prior art does not provide the effective solution of the above problem.
Summary of the invention
The purpose of this utility model is that a kind of supercritical carbon dioxide system provided to solve the above-mentioned problems
The working medium displacement apparatus of non-rotating environment division, the utility model are divided into the supercritical carbon dioxide turbine using dry gas seals
Two parts of working medium method of replacing of tool working medium method of replacing and the non-rotating environment division of supercritical carbon dioxide system, two portions
Divide after independently carrying out working medium displacement and reaching working medium purity requirement, then two parts are connected to.
The utility model is achieved through the following technical solutions the work of the non-rotating environment division of supercritical carbon dioxide system
The purpose of matter displacement:
The working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system, including supercritical carbon dioxide system
Heat source 1, main pipeline 2, high temperature regenerator 3, cryogenic regenerator 4, forecooler 5, chilled(cooling) water return (CWR) 6, low pressure storage tank inlet ductwork
7, loading line 8, shut-off valve 9, low pressure storage tank 10, low pressure storage tank export pipeline 11, exhaust pipe 12, high pressure storage tank 13, high pressure
Storage tank inlet ductwork 14, non-return valve 15, main compressor bypass 16, main compressor 17, recompression machine 18, recompression machine bypass 19,
Low pressure turbine bypass 20, safety valve 22, high pressure turbine bypass 23, adjusts valve 24, high pressure turbine 25, high-purity two at low pressure turbine 21
Carbonoxide gas source 26, vacuum pump 27 and vacuum pump discharges pipeline 28；Wherein, the first of the heat source 1 of supercritical carbon dioxide system
Outlet is connected by the first main pipeline 2-1 with the import of high pressure turbine 25, and the outlet of high pressure turbine 25 passes through the second main pipeline 2-2
It is connected with the first import of the heat source 1 of supercritical carbon dioxide system, the second outlet of the heat source 1 of supercritical carbon dioxide system
It is connected by third main pipeline 2-3 with the import of low pressure turbine 21, the outlet of low pressure turbine 21 passes through the 4th main pipeline 2-4 and height
The high temperature side-entrance of warm regenerator 3 is connected, and the high temperature side outlet of high temperature regenerator 3 passes through the 5th main pipeline 2-5 and low temperature backheat
The high temperature side-entrance of device 4 is connected, and the high temperature side outlet of cryogenic regenerator 4 is divided to two parallel branches, is arranged in a parallel branch
Have the working medium side inlet and outlet of the 6th main line 2-6, forecooler 5 that are sequentially connected, the 7th main line 2-7, main compressor 17,
The low temperature side inlet and outlet of 8th main line 2-8 and cryogenic regenerator 4 are provided in another parallel branch and are sequentially connected
The 9th main line 2-9, recompression machine 18, the tenth main line 2-10 and cryogenic regenerator 4 low temperature side outlet；Main compressor
17 outlet is connected by the 8th main line 2-8 with the low temperature side-entrance of cryogenic regenerator 4, and the outlet for recompressing machine 18 passes through the
Ten main line 2-10 are connected with the low temperature side outlet of cryogenic regenerator 4, and 4 low temperature side outlet of cryogenic regenerator passes through the 11st supervisor
Road 2-11 is connected with the low temperature side-entrance of high temperature regenerator 3, and the import of 3 low temperature side of high temperature regenerator passes through the 12nd main line 2-
12 are connected with the second import of the heat source 1 of supercritical carbon dioxide system, and the third of the heat source 1 of supercritical carbon dioxide system goes out
Mouth is connected by the 13rd main line 2-13 with the low temperature side outlet of high temperature regenerator 3, and the low temperature side outlet of high temperature regenerator 3 is logical
The 6th main line 2-6 is crossed to be connected with the third import of the heat source 1 of supercritical carbon dioxide system；
Two parallel branches, a parallel connection are set between the outlet and the import of the second main line 2-2 of first main line 2-1
Branch road be provided with the first shut-off valve 9-1 being sequentially connected, first adjust valve 24-1, high pressure turbine 25, the first safety valve 22-1 and
Second shut-off valve 9-2, another parallel branch are high pressure turbine bypass 23, are provided with third shut-off valve in high pressure turbine bypass 23
9-3；
Two articles of parallel branches, a parallel connection are set between the outlet and the import of the 4th main line 2-4 of third main line 2-3
Branch road be provided with the 4th shut-off valve 9-4 being sequentially connected, second adjust valve 24-2, low pressure turbine 21, the second safety valve 22-2 and
5th shut-off valve 9-5, another parallel branch are low pressure turbine bypass 20, are provided with the 6th shut-off valve in low pressure turbine bypass 20
9-6；
Two articles of parallel branches are set between the outlet and the import of the tenth main line 2-10 of 9th main line 2-9, one simultaneously
Connection branch road is provided with the 8th shut-off valve 9-8, recompression machine 18, third safety valve 22-3 and the 7th shut-off valve 9- being sequentially connected
7, another parallel branch is recompression machine bypass 19, is provided with the 9th shut-off valve 9-9 in recompression machine bypass 19；
Two articles of parallel branches, a parallel connection are set between the outlet and the import of the 8th main line 2-8 of 7th main line 2-7
Branch road is provided with the 11st shut-off valve 9-11, main compressor 17, the 4th safety valve 22-4 and the tenth shut-off valve being sequentially connected
9-10, another parallel branch are main compressor 16, are provided with the 12nd shut-off valve 9-12 in main compressor bypass 16；
It is provided with the first non-return valve 15-1 on 8th main line 2-8, is provided with the second non-return valve on the tenth main line 2-10
15-2；
Position is connected between one end of low pressure storage tank inlet ductwork 7 and the entrance and exit of the 7th main pipeline 2-7, low pressure storage
The other end of tank inlet ductwork 7 is connected with low pressure storage tank 10, and low pressure storage tank 10 passes through loading line 8 and high-pureness carbon dioxide gas
Source 26 is connected, and the 6th safety valve 22-6 is provided on low pressure storage tank 10, the 14th shut-off valve 9- is provided on loading line 8
14, low pressure storage tank 10 is connected by low pressure storage tank export pipeline 11 with high pressure storage tank 13, is arranged on low pressure storage tank export pipeline 11
Have the 4th non-return valve 15-4, be provided with the 5th safety valve 22-5 on high pressure storage tank 13, high pressure storage tank 13 by exhaust pipe 12 with
Vacuum pump 27 is connected, and the 13rd shut-off valve 9-13, vacuum pump 27 and vacuum pump discharges pipeline 28 are provided on exhaust pipe 12
One end is connected；
One end of high pressure storage tank inlet ductwork 14 is connected with high pressure storage tank 13, the other end of high pressure storage tank inlet ductwork 14 with
One section of the 8th main pipeline between the first non-return valve 15-1 installation site and the outlet port of the 8th main pipeline 2-8 is connected, high
Third non-return valve 15-3 is provided in pressure storage tank inlet ductwork 14.
The purity of the high-pureness carbon dioxide gas source 26 is not less than 99.9%, and its pressure rating is higher than normal atmosphere
Pressure P0.
The other end of the vacuum pump discharges pipeline 28 is connected with supercritical carbon dioxide system workshop ambient atmosphere.
On the high pressure storage tank 13 and pressure gauge is separately installed on low pressure storage tank 10.
The through-flow direction of first non-return valve 15 is to export from main compressor bypass 16 to 4 low temperature side of cryogenic regenerator
Import, the through-flow direction of the second non-return valve 15-2 are to export from recompression machine bypass 19 to 4 low temperature side of cryogenic regenerator
Outlet, the through-flow direction of the 4th non-return valve 15-4 be from low pressure storage tank export pipeline 11 to high pressure storage tank 13, it is described
The through-flow direction of third non-return valve 15-3 is from high pressure storage tank inlet ductwork 14 to high pressure storage tank 13.
The working medium method of replacing of the working medium displacement apparatus of the non-rotating environment division of the supercritical carbon dioxide system, packet
Include following steps:
After step 1, the supercritical carbon dioxide circulatory system assign working medium displacement order, the first shut-off valve 9-1, second are closed
Disconnected valve 9-2, the 4th shut-off valve 9-4, the 5th shut-off valve 9-5, the 7th shut-off valve 9-7, the 8th shut-off valve 9-8, the tenth shut-off valve 9-
10, the 11st shut-off valve 9-11, the 13rd shut-off valve 9-13 and the 14th shut-off valve 9-14, closing, open third shut-off valve 9-
3, the 6th shut-off valve 9-6, the 9th shut-off valve 9-9 and the 12nd shut-off valve 9-12；
Step 2 opens the 13rd shut-off valve 9-13, and starting vacuum pump 27 aspirates the gas in system, until low
The pressure gauge in storage tank 10 is pressed to show that absolute pressure value no more than after P1, closes third shut-off valve 9-13, closes vacuum pump 27；
Step 3 opens the 14th shut-off valve 9-14, and the working medium in high-pureness carbon dioxide gas source 26 flows into overcritical dioxy
In the working medium displacement apparatus for changing the non-rotating environment division of carbon system, when the pressure gauge in high pressure storage tank 13 shows absolute pressure value
When equal to atmospheric pressure P0, the 14th shut-off valve 9-14 is closed；
Step 4, maintain supercritical carbon dioxide system in all shut-off valves state it is constant, make supercritical carbon dioxide
The connected region of the working medium displacement apparatus of the non-rotating environment division of system stands the set time T for reaching setting；
Step 5 repeats step 2 to the operation of step 4 and reaches setting times N, keeps supercritical carbon dioxide system non-rotating
The concentration of the connected space of the working medium displacement apparatus of environment division reaches system requirements purity C.
The setting times N of the working medium suction of the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system,
Setting pressure P1, system requirements purity C, atmospheric pressure P0 meet calculation formula (P1/P0)N≥79(1-C)。
The connected space of the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system stands consolidating for setting
The T that fixes time is 10 to 15 minutes.
Compared to the prior art compared with, the utility model has the beneficial effects that:
The utility model proposes the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system and bases
In the high-purity working medium method of replacing of the device, by filling row, quiet to the vacuum suction of gas in device, normal pressure high-purity working medium
The multiple circulation for setting three processes overcomes air in the dead angle of the connected region of the non-rotating equipment of supercritical carbon dioxide system
It is not easy displaced unfavorable factor, makes the working medium purity in the non-rotating equipment of supercritical carbon dioxide system up to 99.9% or more；
The non-rotating environment division of supercritical carbon dioxide system is realized by choosing suitable vacuum degree, bleed position, aerating position
The high-purity of working medium is replaced, and in replacement process system less investment, time swap section, do not change former main pipeline structure.
Detailed description of the invention
Fig. 1 is the signal of the working medium displacement apparatus of the non-rotating environment division of the utility model supercritical carbon dioxide system
Figure.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, the working medium displacement apparatus of the non-rotating environment division of the utility model supercritical carbon dioxide system, packet
Heat source 1, main pipeline 2, high temperature regenerator 3, cryogenic regenerator 4, forecooler 5, the cooling water for including supercritical carbon dioxide system return
Road 6, low pressure storage tank inlet ductwork 7, loading line 8, shut-off valve 9, low pressure storage tank 10, low pressure storage tank export pipeline 11, exhaust tube
Road 12, high pressure storage tank 13, high pressure storage tank inlet ductwork 14, non-return valve 15, main compressor bypass 16, main compressor 17, recompression
Machine 18, recompression machine bypass 19, low pressure turbine bypass 20, low pressure turbine 21, safety valve 22, high pressure turbine bypass 23, adjust valve 24,
High pressure turbine 25, high-pureness carbon dioxide gas source 26, vacuum pump 27 and vacuum pump discharges pipeline 28；Wherein, overcritical titanium dioxide
The first outlet of the heat source 1 of carbon system is connected by the first main pipeline 2-1 with the import of high pressure turbine 25, and high pressure turbine 25 goes out
Mouth is connected by the second main pipeline 2-2 with the first import of the heat source 1 of supercritical carbon dioxide system, supercritical carbon dioxide system
The second outlet of the heat source 1 of system is connected by third main pipeline 2-3 with the import of low pressure turbine 21, and the outlet of low pressure turbine 21 is logical
It crosses the 4th main pipeline 2-4 to be connected with the high temperature side-entrance of high temperature regenerator 3, the high temperature side outlet of high temperature regenerator 3 passes through the 5th
Main pipeline 2-5 is connected with the high temperature side-entrance of cryogenic regenerator 4, and the high temperature side outlet of cryogenic regenerator 4 is divided to two parallel branches,
Working medium side inlet and outlet, the 7th master of the 6th main line 2-6, forecooler 5 that are sequentially connected are provided in one article of parallel branch
The low temperature side inlet and outlet of pipeline 2-7, main compressor 17, the 8th main line 2-8 and cryogenic regenerator 4, another parallel connection
Branch road is provided with the 9th main line 2-9, recompression machine 18, the tenth main line 2-10 and the cryogenic regenerator 4 being sequentially connected
Low temperature side outlet；The outlet of main compressor 17 is connected by the 8th main line 2-8 with the low temperature side-entrance of cryogenic regenerator 4,
The outlet of recompression machine 18 is connected by the tenth main line 2-10 with the low temperature side outlet of cryogenic regenerator 4, and cryogenic regenerator 4 is low
Warm side outlet is connected by the 11st main line 2-11 with the low temperature side-entrance of high temperature regenerator 3,3 low temperature side of high temperature regenerator
Import is connected by the 12nd main line 2-12 with the second import of the heat source 1 of supercritical carbon dioxide system, overcritical dioxy
The third outlet for changing the heat source 1 of carbon system is connected by the 13rd main line 2-13 with the low temperature side outlet of high temperature regenerator 3, high
The low temperature side outlet of warm regenerator 3 passes through the third import phase of the 6th main line 2-6 and the heat source 1 of supercritical carbon dioxide system
Even；
Two parallel branches, a parallel connection are set between the outlet and the import of the second main line 2-2 of first main line 2-1
Branch road be provided with the first shut-off valve 9-1 being sequentially connected, first adjust valve 24-1, high pressure turbine 25, the first safety valve 22-1 and
Second shut-off valve 9-2, another parallel branch are high pressure turbine bypass 23, are provided with third shut-off valve in high pressure turbine bypass 23
9-3；
Two articles of parallel branches, a parallel connection are set between the outlet and the import of the 4th main line 2-4 of third main line 2-3
Branch road be provided with the 4th shut-off valve 9-4 being sequentially connected, second adjust valve 24-2, low pressure turbine 21, the second safety valve 22-2 and
5th shut-off valve 9-5, another parallel branch are low pressure turbine bypass 20, are provided with the 6th shut-off valve in low pressure turbine bypass 20
9-6；
Two articles of parallel branches are set between the outlet and the import of the tenth main line 2-10 of 9th main line 2-9, one simultaneously
Connection branch road is provided with the 8th shut-off valve 9-8, recompression machine 18, third safety valve 22-3 and the 7th shut-off valve 9- being sequentially connected
7, another parallel branch is recompression machine bypass 19, is provided with the 9th shut-off valve 9-9 in recompression machine bypass 19；
Two articles of parallel branches, a parallel connection are set between the outlet and the import of the 8th main line 2-8 of 7th main line 2-7
Branch road is provided with the 11st shut-off valve 9-11, main compressor 17, the 4th safety valve 22-4 and the tenth shut-off valve being sequentially connected
9-10, another parallel branch are main compressor 16, are provided with the 12nd shut-off valve 9-12 in main compressor bypass 16；
It is provided with the first non-return valve 15-1 on 8th main line 2-8, is provided with the second non-return valve on the tenth main line 2-10
15-2；
Position is connected between one end of low pressure storage tank inlet ductwork 7 and the entrance and exit of the 7th main pipeline 2-7, low pressure storage
The other end of tank inlet ductwork 7 is connected with low pressure storage tank 10, and low pressure storage tank 10 passes through loading line 8 and high-pureness carbon dioxide gas
Source 26 is connected, and the 6th safety valve 22-6 is provided on low pressure storage tank 10, the 14th shut-off valve 9- is provided on loading line 8
14, low pressure storage tank 10 is connected by low pressure storage tank export pipeline 11 with high pressure storage tank 13, is arranged on low pressure storage tank export pipeline 11
Have the 4th non-return valve 15-4, be provided with the 5th safety valve 22-5 on high pressure storage tank 13, high pressure storage tank 13 by exhaust pipe 12 with
Vacuum pump 27 is connected, and the 13rd shut-off valve 9-13, vacuum pump 27 and vacuum pump discharges pipeline 28 are provided on exhaust pipe 12
One end is connected；
One end of high pressure storage tank inlet ductwork 14 is connected with high pressure storage tank 13, the other end of high pressure storage tank inlet ductwork 14 with
One section of the 8th main pipeline between the first non-return valve 15-1 installation site and the outlet port of the 8th main pipeline 2-8 is connected, high
Third non-return valve 15-3 is provided in pressure storage tank inlet ductwork 14.
As preferred embodiments of the present invention, the purity of the high-pureness carbon dioxide gas source (26) is not less than
99.9%, and its pressure rating is higher than normal atmospheric pressure P0.
As preferred embodiments of the present invention, the other end of the vacuum pump discharges pipeline (28) with it is overcritical
Carbon dioxide system workshop ambient atmosphere is connected.
As preferred embodiments of the present invention, distinguish on the high pressure storage tank (13) and on low pressure storage tank (10)
Pressure gauge is installed.
As preferred embodiments of the present invention, the through-flow direction of first non-return valve 15 is from main compressor
Bypass 16 is exported to 4 low temperature side-entrance of cryogenic regenerator, and the through-flow direction of the second non-return valve 15-2 is from recompression machine
Bypass 19 is exported to 4 low temperature side outlet of cryogenic regenerator, and the through-flow direction of the 4th non-return valve 15-4 is from low pressure storage tank
Export pipeline 11 to high pressure storage tank 13, the through-flow direction of the third non-return valve 15-3 be from high pressure storage tank inlet ductwork 14 to
High pressure storage tank 13.
The working medium of the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system described in the utility model
Method of replacing, comprising the following steps:
After step 1, the supercritical carbon dioxide circulatory system assign working medium displacement order, the first shut-off valve 9-1, second are closed
Disconnected valve 9-2, the 4th shut-off valve 9-4, the 5th shut-off valve 9-5, the 7th shut-off valve 9-7, the 8th shut-off valve 9-8, the tenth shut-off valve 9-
10, the 11st shut-off valve 9-11, the 13rd shut-off valve 9-13 and the 14th shut-off valve 9-14, closing, open third shut-off valve 9-
3, the 6th shut-off valve 9-6, the 9th shut-off valve 9-9 and the 12nd shut-off valve 9-12；
Step 2 opens the 13rd shut-off valve 9-13, and starting vacuum pump 27 aspirates the gas in system, until low
The pressure gauge in storage tank 10 is pressed to show that absolute pressure value no more than after P1, closes third shut-off valve 9-13, closes vacuum pump 27；
Step 3 opens the 14th shut-off valve 9-14, and the working medium in high-pureness carbon dioxide gas source 26 flows into overcritical dioxy
In the working medium displacement apparatus for changing the non-rotating environment division of carbon system, when the pressure gauge in high pressure storage tank 13 shows absolute pressure value
When equal to atmospheric pressure P0, the 14th shut-off valve 9-14 is closed；
Step 4, maintain supercritical carbon dioxide system in all shut-off valves state it is constant, make supercritical carbon dioxide
The connected region of the working medium displacement apparatus of the non-rotating environment division of system stands the set time T for reaching setting；
Step 5 repeats step 2 to the operation of step 4 and reaches setting times N, keeps supercritical carbon dioxide system non-rotating
The concentration of the connected space of the working medium displacement apparatus of environment division reaches system requirements purity C.
As preferred embodiments of the present invention, the working medium of the non-rotating environment division of supercritical carbon dioxide system is set
The setting times N of the working medium suction of changing device, setting pressure P1, system requirements purity C, atmospheric pressure P0 meet calculation formula
(P1/P0)N≥79(1-C)。
As preferred embodiments of the present invention, the working medium of the non-rotating environment division of supercritical carbon dioxide system is set
The connected space of changing device stood the set time T set as 10 to 15 minutes.
The limitation that the technical solution of the utility model is not limited to the above specific embodiments, all skills according to the present utility model
The technology deformation that art scheme is made, each falls within the protection scope of the utility model.
Claims (5)
1. the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system, it is characterised in that: including overcritical two
Heat source (1), main pipeline (2), high temperature regenerator (3), cryogenic regenerator (4), forecooler (5), the cooling water of carbonoxide system return
Road (6), low pressure storage tank inlet ductwork (7), loading line (8), shut-off valve (9), low pressure storage tank (10), low pressure storage tank export pipeline
(11), exhaust pipe (12), high pressure storage tank (13), high pressure storage tank inlet ductwork (14), non-return valve (15), main compressor bypass
(16), main compressor (17), recompression machine (18), recompression machine bypass (19), low pressure turbine bypass (20), low pressure turbine
(21), safety valve (22), high pressure turbine bypass (23), tune valve (24), high pressure turbine (25), high-pureness carbon dioxide gas source
(26), vacuum pump (27) and vacuum pump discharges pipeline (28)；Wherein, the first of the heat source (1) of supercritical carbon dioxide system goes out
Mouth is connected by the first main pipeline (2-1) with the import of high pressure turbine (25), and the outlet of high pressure turbine (25) passes through the second supervisor
Road (2-2) is connected with the first import of the heat source (1) of supercritical carbon dioxide system, the heat source of supercritical carbon dioxide system
(1) second outlet is connected by third main pipeline (2-3) with the import of low pressure turbine (21), and the outlet of low pressure turbine (21) is logical
It crosses the 4th main pipeline (2-4) to be connected with the high temperature side-entrance of high temperature regenerator (3), the high temperature side outlet of high temperature regenerator (3) is logical
It crosses the 5th main pipeline (2-5) to be connected with the high temperature side-entrance of cryogenic regenerator (4), the high temperature side outlet point of cryogenic regenerator (4)
Two parallel branches are provided with the working medium side of the 6th main line (2-6), forecooler (5) that are sequentially connected in one article of parallel branch
Inlet and outlet, the 7th main line (2-7), main compressor (17), the 8th main line (2-8) and cryogenic regenerator (4) it is low
Warm side-entrance and outlet, be provided in another article of parallel branch the 9th main line (2-9) being sequentially connected, recompression machine (18),
The low temperature side outlet of tenth main line (2-10) and cryogenic regenerator (4)；The outlet of main compressor (17) passes through the 8th supervisor
Road (2-8) is connected with the low temperature side-entrance of cryogenic regenerator (4), and the outlet of recompression machine (18) passes through the tenth main line (2-10)
It is connected with the low temperature side outlet of cryogenic regenerator (4), cryogenic regenerator (4) low temperature side outlet passes through the 11st main line (2-11)
It is connected with the low temperature side-entrance of high temperature regenerator (3), the import of high temperature regenerator (3) low temperature side passes through the 12nd main line (2-
12) it is connected with the second import of the heat source of supercritical carbon dioxide system (1), the heat source (1) of supercritical carbon dioxide system
Third outlet is connected by the 13rd main line (2-13) with the low temperature side outlet of high temperature regenerator (3), high temperature regenerator (3)
Low temperature side outlet is connected by the 6th main line (2-6) with the third import of the heat source (1) of supercritical carbon dioxide system；
Two parallel branches, a parallel connection are set between the outlet of the first main line (2-1) and the import of the second main line (2-2)
Branch road is provided with the first shut-off valve (9-1) being sequentially connected, the first tune valve (24-1), high pressure turbine (25), the first safety valve
(22-1) and the second shut-off valve (9-2), another parallel branch are that high pressure turbine bypasses (23), are set in high pressure turbine bypass (23)
It is equipped with third shut-off valve (9-3)；
Two articles of parallel branches, a parallel connection are set between the outlet of third main line (2-3) and the import of the 4th main line (2-4)
Branch road is provided with the 4th shut-off valve (9-4) being sequentially connected, the second tune valve (24-2), low pressure turbine (21), the second safety valve
(22-2) and the 5th shut-off valve (9-5), another parallel branch are that low pressure turbine bypasses (20), are set in low pressure turbine bypass (20)
It is equipped with the 6th shut-off valve (9-6)；
Two articles of parallel branches are set between the outlet of the 9th main line (2-9) and the import of the tenth main line (2-10), and one simultaneously
Connection branch road is provided with the 8th shut-off valve (9-8) being sequentially connected, recompression machine (18), third safety valve (22-3) and the 7th pass
Disconnected valve (9-7), another parallel branch are that recompression machine bypasses (19), are provided with the 9th shut-off valve in recompression machine bypass (19)
(9-9)；
Two articles of parallel branches, a parallel connection are set between the outlet of the 7th main line (2-7) and the import of the 8th main line (2-8)
Branch road is provided with the 11st shut-off valve (9-11), main compressor (17), the 4th safety valve (22-4) and the tenth being sequentially connected
Shut-off valve (9-10), another parallel branch are main compressor (16), are provided with the 12nd in main compressor bypass (16)
Shut-off valve (9-12)；
It is provided with the first non-return valve (15-1) on 8th main line (2-8), is provided with the second check on the tenth main line (2-10)
Valve (15-2)；
Position is connected between one end of low pressure storage tank inlet ductwork (7) and the entrance and exit of the 7th main pipeline (2-7), low pressure storage
The other end of tank inlet ductwork (7) is connected with low pressure storage tank (10), and low pressure storage tank (10) passes through loading line (8) and high-purity two
Carbonoxide gas source (26) is connected, and the 6th safety valve (22-6) is provided on low pressure storage tank (10), is provided on loading line (8)
14th shut-off valve (9-14), low pressure storage tank (10) is connected by low pressure storage tank export pipeline (11) with high pressure storage tank (13), low
It is provided with the 4th non-return valve (15-4) in pressure outlet pipeline (11), high pressure storage tank is provided with the 5th safety valve (22- on (13)
5), high pressure storage tank (13) is connected by exhaust pipe (12) with vacuum pump (27), and the 13rd pass is provided on exhaust pipe (12)
Disconnected valve (9-13), vacuum pump (27) are connected with one end of vacuum pump discharges pipeline (28)；
One end of high pressure storage tank inlet ductwork (14) is connected with high pressure storage tank (13), the other end of high pressure storage tank inlet ductwork (14)
With one section of the 8th main pipeline phase between the first non-return valve (15-1) installation site and the outlet port of the 8th main pipeline (2-8)
Even, third non-return valve (15-3) is provided in high pressure storage tank inlet ductwork (14).
2. the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system according to claim 1, special
Sign is: the purity of the high-pureness carbon dioxide gas source (26) is not less than 99.9%, and its pressure rating is big higher than standard
Atmospheric pressure P0.
3. the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system according to claim 1, special
Sign is: the other end of the vacuum pump discharges pipeline (28) is connected with supercritical carbon dioxide system workshop ambient atmosphere
It is logical.
4. the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system according to claim 1, special
Sign is: on the high pressure storage tank (13) and being separately installed with pressure gauge on low pressure storage tank (10).
5. the working medium displacement apparatus of the non-rotating environment division of supercritical carbon dioxide system according to claim 1, special
Sign is: the through-flow direction of first non-return valve (15-1) is to bypass (16) from main compressor to export to cryogenic regenerator
(4) low temperature side-entrance, the through-flow direction of second non-return valve (15-2) are to bypass (19) from recompression machine to export to low temperature
Regenerator (4) low temperature side outlet, the through-flow direction of the 4th non-return valve (15-4) are from low pressure storage tank export pipeline (11)
To high pressure storage tank (13), the through-flow direction of the third non-return valve (15-3) is from high pressure storage tank inlet ductwork (14) to high pressure
Storage tank (13).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915810A (en) * | 2018-08-17 | 2018-11-30 | 西安热工研究院有限公司 | The working medium displacement apparatus and method of the non-rotating environment division of supercritical carbon dioxide system |
| CN112814755A (en) * | 2020-12-30 | 2021-05-18 | 东方电气集团东方汽轮机有限公司 | High-efficiency supercritical CO2Closed cycle power system |
-
2018
- 2018-08-17 CN CN201821330831.5U patent/CN208650933U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915810A (en) * | 2018-08-17 | 2018-11-30 | 西安热工研究院有限公司 | The working medium displacement apparatus and method of the non-rotating environment division of supercritical carbon dioxide system |
| CN108915810B (en) * | 2018-08-17 | 2023-06-23 | 西安热工研究院有限公司 | Working medium replacement device and method for non-rotating equipment part of supercritical carbon dioxide system |
| CN112814755A (en) * | 2020-12-30 | 2021-05-18 | 东方电气集团东方汽轮机有限公司 | High-efficiency supercritical CO2Closed cycle power system |
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