CN205302964U - Reload drainage system of water tank of belted steel clad can - Google Patents
Reload drainage system of water tank of belted steel clad can Download PDFInfo
- Publication number
- CN205302964U CN205302964U CN201520938349.XU CN201520938349U CN205302964U CN 205302964 U CN205302964 U CN 205302964U CN 201520938349 U CN201520938349 U CN 201520938349U CN 205302964 U CN205302964 U CN 205302964U
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- CN
- China
- Prior art keywords
- water tank
- isolating valve
- siphon
- drainage system
- changing water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The utility model relates to a reload drainage system of water tank of belted steel clad can, this system be including setting up waterwall (2) in the water tank that reloads (1), waterwall (2) will reload water tank (1) fall into two regions, stride on waterwall (2) and be equipped with siphon (11), be equipped with the siphon destructor on siphon (11), drainage system is still including setting up the delivery pipeline outside containment (14), the both ends of delivery pipeline are connected with two regions in the pond of reloading through containment spraying system water pump suction pipe line and reload pond cooling and processing system pipeline respectively. The utility model discloses a drainage system, during nuclear power generating sets refuelling outage, the log raft in the water tank of can realizing reloading in the subregion is to another region to need not set up yet can realize the reloading local evacuation of water tank of other interim water storage facilities, in order to realize being close to the inspection to reload water tank steel linear and filtration system equipment.
Description
Technical field
This utility model belongs to draining field, is specifically related to a kind of drainage system with steel linear material-changing water tank.
Background technology
Material-changing water tank is nuclear power plant's important safety items, except providing period required reloading with, except water, also cooling down reactor core and containment as the water source of engineered safety system under accident conditions of reloading. Material-changing water tank may be provided at outside containment, it is possible to is arranged in containment. Relative to the outer material-changing water tank of containment, being placed in the material-changing water tank in containment and more can effectively play its security function, after being effectively increased accident, the reliability at emergent water source, improves power plant safety.
But it being different from the outer material-changing water tank of containment, built-in material-changing water tank need to serve as the function of containment sump, in order to sets up long-term, lasting reactor core and containment cooling after accident. Built-in material-changing water tank is xoncrete structure, and inwall lays steel linear, to avoid water and concrete Long Term Contact, and is provided with filter assemblies in water tank. How steel linear and filter assemblies being carried out closely visual examination is the built-in key issue brought of material-changing water tank. Realize the inspection of steel linear and filter assemblies, it is necessary to the water in emptying material-changing water tank. The pump used by draining that normally reloads is high-capacity pump; when water tank is close to emptying; it is likely due to the too low operation causing flowing line suction air and affect pump of liquid level, even damages pump, so the pump used by draining that normally reloads cannot realize being emptied completely of water tank. For solving this problem, it is necessary to arrange extra drainage system, when high water tank is less than certain value, the drainage system of the low discharge by arranging realizes the local emptying of material-changing water tank.
Utility model content
For the defect existed in prior art, this utility model provides a kind of drainage system with steel linear material-changing water tank, during nuclear power generating sets refuelling outage, can realizing the water of subregion in material-changing water tank discharged to another region, carrying out material-changing water tank steel linear and filter assemblies closely checking or maintenance thus meeting staff.
For reaching object above, the technical solution adopted in the utility model is: provide a kind of drainage system with steel linear material-changing water tank, this system includes the waterwall being arranged in material-changing water tank, material-changing water tank is divided into two regions by described waterwall, having siphon on described waterwall, described siphon is provided with siphon breaking plant;Described drainage system also includes the flowing line being arranged on outside containment, and the two ends of described flowing line cool down and process systematic pipeline through containment spray system water pump suction pipe line and refuelling pool respectively and are connected with two regions of refuelling pool.
Further, described flowing line is provided with draining pump, and the upstream of described draining pump is provided with the first isolating valve and the second isolating valve, and the downstream of draining pump is provided with the 3rd isolating valve and the 4th isolating valve.
Further, bridging two by-pass lines between the flowing line at described draining pump two ends, every by-pass line is provided with the 5th isolating valve and the 6th isolating valve; Wherein the head end of a by-pass line is located between the first isolating valve and the second isolating valve, and tail end is located between draining pump and the 3rd isolating valve; The head end of another by-pass line is located between the second isolating valve and draining pump, and tail end is located between the 3rd isolating valve and the 4th isolating valve.
Further, described siphon breaking plant includes siphon destruction pipe and the siphon destructive valve being arranged on described siphon destruction pipe.
Further, the installation site of described siphon destructive valve is higher than the position of described material-changing water tank.
Advantageous Effects of the present utility model is in that:
(1) this utility model by being provided with waterwall inside material-changing water tank, material-changing water tank is divided into two regions by this waterwall substantially uniformly, waterwall arranges siphon, and it is provided above siphon destroying device at siphon, by being turned on and off siphon destructive valve, realize and destroy siphon function, so, draining or single district's draining while can be realized as two regions of material-changing water tank, carry out material-changing water tank steel linear and filter assemblies closely checking or maintenance thus meeting staff;
(2) this utility model in containment arranged outside flowing line, this flowing line is provided with draining pump, valve group and bridging by-pass line, when being made without drain operation, isolating valve by flowing line two ends, so as to be in isolation with other system, thus not affecting the operation of other connected systems.
Accompanying drawing explanation
Fig. 1 is the drainage system structural representation with steel linear material-changing water tank.
In figure:
1-material-changing water tank 2-waterwall 3-draining pump 4-the first isolating valve
5-the 4th isolating valve 6-the 5th isolating valve 7-the 6th isolating valve 8-the second isolating valve
9-the 3rd isolating valve 10-stop valve 11-siphon 12-siphon destructing tube
13-siphon destructive valve 14-containment
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
As it is shown in figure 1, be the structural representation of this utility model drainage system with steel linear material-changing water tank. This drainage system includes the waterwall 2 being arranged within material-changing water tank 1, and this waterwall 2 is parapet, material-changing water tank lower space is divided into mutually isolated Liang Ge district, respectively I district and II district. Crossing on waterwall 2 has siphon 11, siphon 11 to be provided with siphon breaking plant, this siphon breaking plant includes siphon and destroys pipe 12, node N12 to N13, it is arranged on siphon and destroys the siphon destructive valve 13 on pipe 12, in order to operator are easy to operation, the installation site of siphon destructive valve 13 is higher than the position of material-changing water tank 1.
This drainage system also includes being arranged on the flowing line outside containment 14, from node N4, through node N5-N8, it is connected with Ith district of material-changing water tank and the bottom in IIth district with processing systematic pipeline node N3 to N4, node N9 to N10 through the cooling of containment spray system water pump suction pipe line node N1 to N3, node N2 to N10 and refuelling pool respectively to node N9, this flowing line two end node N4 and N9.This flowing line is provided with draining pump 3, and the upstream of this draining pump 3 is sequentially provided with the first isolating valve 4 and the second isolating valve 8, and the downstream of draining pump 3 is sequentially provided with stop valve the 10, the 3rd isolating valve 9 and the 4th isolating valve 5. It addition, bridge two by-pass line N11 and N12 between the flowing line of draining pump 3 upstream and downstream, one article of by-pass line N11 node N5 to N7 is provided with the 6th isolating valve 7, and another article of by-pass line N12 node N6 to N8 is provided with the 5th isolating valve 6. Wherein the head end of a by-pass line N11 is located between the first isolating valve 4 and the second isolating valve 8, and tail end is located between draining pump 3 and the 3rd isolating valve 9; The head end of another by-pass line N12 is located between the second isolating valve 8 and draining pump 3, and tail end is located between the 3rd isolating valve 9 and the 4th isolating valve 5.
Drainage system of the present utility model, by arranging waterwall in material-changing water tank, is divided into two independent regions by material-changing water tank; By arranging siphon and siphon destroying device on waterwall, it is possible to realize the draining simultaneously of two regions of material-changing water tank or single district's draining. When siphon destructive valve 13 is closed, realize two regions of material-changing water tank by siphonage and remain same water level; When siphon destructive valve 13 is opened, siphonage is lost, it may be achieved the independent draining in Ith district or IIth district, or realizes the water in Ith district (IIth district) is delivered to IIth district (Ith district).
Drainage system of the present utility model, arranges flowing line outside containment, and flowing line is provided with fixing draining pump and isolating valve group. Non-reload operation time, by closing flowing line entrance and exit the first isolating valve 4 and the 4th isolating valve 5, it is achieved its isolation with other system and material-changing water tank, thus not affecting the operation of other connected systems. Reload operation time, when needing the emptying of material-changing water tank partial water to carry out the inspection work of relevant device, by opening water discharge line inlet and outlet the first isolating valve 4 and the 4th isolating valve 5, it is achieved flowing line connects with material-changing water tank.
Drainage system of the present utility model, when needing realization by the water in material-changing water tank II district discharged to Ith district, first turn on siphon destructive valve to destroy siphonal siphonage, by closing the 5th isolating valve 6 and the 6th isolating valve 7, open the second isolating valve 8 and the 3rd isolating valve 9, it is achieved by the water in material-changing water tank II district discharged to Ith district; When needing realization by the water in material-changing water tank I district discharged to IIth district, open siphon destructive valve and destroy siphonal siphonage, by closing the second isolating valve 8 and the 3rd isolating valve 9, open the 5th isolating valve 6 and the 6th isolating valve 7, realize the water in material-changing water tank I district discharged to IIth district, and whole process need not dismount draining pump, save the time.
Drainage system of the present utility model, when realizing the mutual draining of two subregions, do not need operations staff's joint connection in site pipeline and equipment, have only to the valve being turned on and off in respective lines, the switching of drainage direction between twoth district can be realized, such that it is able to effectively shorten water discharge time, and reduce operator and directly contact in material-changing water tank the probability with radioactive water.
Drainage system of the present utility model, containment spray system water pump suction pipe line is connected with material-changing water tank by the intake pipe of material-changing water tank, owing to containment spray system water pump suction pipe line is provided with water intaking melt pit from the intake place of material-changing water tank, therefore, it may be achieved the local of material-changing water tank thoroughly empties.
Certainly, this utility model can be carried out various change and modification without deviating from spirit and scope of the present utility model by those skilled in the art.So, if these amendments of the present utility model and modification being belonged within the scope of this utility model claim and equivalent technology thereof, then this utility model is also intended to comprise these change and modification.
Claims (5)
1. the drainage system with steel linear material-changing water tank, it is characterized in that: this system includes the waterwall (2) being arranged in material-changing water tank (1), material-changing water tank (1) is divided into two regions by described waterwall (2), having siphon (11) on described waterwall (2), described siphon (11) is provided with siphon breaking plant; Described drainage system also includes being arranged on containment (14) flowing line outward, and the two ends of described flowing line cool down and process systematic pipeline through containment spray system water pump suction pipe line and refuelling pool respectively and are connected with two regions of refuelling pool.
2. the drainage system with steel linear material-changing water tank as claimed in claim 1, it is characterized in that: described flowing line is provided with draining pump (3), the upstream of described draining pump (3) is provided with the first isolating valve (4) and the second isolating valve (8), and the downstream of draining pump (3) is provided with the 3rd isolating valve (9) and the 4th isolating valve (5).
3. the drainage system with steel linear material-changing water tank as claimed in claim 2, it is characterized in that: bridging two by-pass lines between the flowing line at described draining pump (3) two ends, every by-pass line is provided with the 5th isolating valve (6) and the 6th isolating valve (7); Wherein the head end of a by-pass line is located between the first isolating valve (4) and the second isolating valve (8), and tail end is located between draining pump (3) and the 3rd isolating valve (9); The head end of another by-pass line is located between the second isolating valve (8) and draining pump (3), and tail end is located between the 3rd isolating valve (9) and the 4th isolating valve (5).
4. the drainage system with steel linear material-changing water tank as described in any one of claim 1-3, is characterized in that: described siphon breaking plant includes siphon and destroys pipe (12) and the siphon destructive valve (13) being arranged on described siphon destruction pipe (12).
5. the drainage system with steel linear material-changing water tank as claimed in claim 4, is characterized in that: the installation site of described siphon destructive valve (13) is higher than the position of described material-changing water tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520938349.XU CN205302964U (en) | 2015-11-23 | 2015-11-23 | Reload drainage system of water tank of belted steel clad can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520938349.XU CN205302964U (en) | 2015-11-23 | 2015-11-23 | Reload drainage system of water tank of belted steel clad can |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205302964U true CN205302964U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520938349.XU Active CN205302964U (en) | 2015-11-23 | 2015-11-23 | Reload drainage system of water tank of belted steel clad can |
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| CN (1) | CN205302964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087093A (en) * | 2017-12-31 | 2018-05-29 | 沪东重机有限公司 | The cooling water off-line equipment of nuclear power diesel emergency generating set |
-
2015
- 2015-11-23 CN CN201520938349.XU patent/CN205302964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087093A (en) * | 2017-12-31 | 2018-05-29 | 沪东重机有限公司 | The cooling water off-line equipment of nuclear power diesel emergency generating set |
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| GR01 | Patent grant |