CN209511978U - A kind of thermal power plant heat exchangers for district heating drainage control system - Google Patents
A kind of thermal power plant heat exchangers for district heating drainage control system Download PDFInfo
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- CN209511978U CN209511978U CN201920195243.3U CN201920195243U CN209511978U CN 209511978 U CN209511978 U CN 209511978U CN 201920195243 U CN201920195243 U CN 201920195243U CN 209511978 U CN209511978 U CN 209511978U
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- heat exchangers
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Abstract
The utility model provides a kind of thermal power plant heat exchangers for district heating drainage control system, including at least two high pressure heat exchangers for district heatings, at least two low pressure heat exchangers for district heatings, the high pressure draining pipeline being installed on each high pressure heat exchangers for district heating, each low pressure heat exchangers for district heating is equipped with low pressure drain water piping, high-pressure connecting pipe is communicated on two neighboring high pressure draining pipeline, high pressure valve is installed thereon, low pressure communicating pipe is communicated on two adjacent low pressure drain water pipings, low pressure valve is installed thereon, intermediate connection pipe is communicated between adjacent high pressure draining pipeline and low pressure drain water piping, intermediate connection pipe is equipped with intervening vaive.Above-mentioned thermal power plant heat exchangers for district heating drainage control system, to reduce equipment consume and energy consumption significantly, can be more energy-saving and environmentally friendly according to each valve of heating load size free switching.
Description
Technical field
The utility model relates to hydrophobic control technology fields, heat more specifically to a kind of thermal power plant heat supply network
Device drainage control system.
Background technique
With the increasing of environment protection treating dynamics, obtained energetically using the heating mode by thermal power plant central heating
It is universal.
It is well known that heat exchangers for district heating is the core heating equipment in thermal power plant, due in the heat supply initial station of thermal power plant
More high pressure heat exchangers for district heatings and low pressure heat exchangers for district heating are arranged, arranges more high pressure draining pumps and low pressure correspondingly
Drainage pump, the drainage pump outlet conduit of same type are pooled in a main pipe, and for high-pressure heater, vapour source is main
From unit steam extraction, and the vapour source of low-pressure heater enters the steam discharge after the small steam turbine of heat supply network from unit steam extraction.Work as needs
Heating load it is smaller when, the capacity of single unit can be met the requirements, and only need to put into operation at this time a high-pressure heater and one
Platform low-pressure heater, and start a low pressure drainage pump and hydrophobic task can be completed；When the heating load of needs is larger, due to
Load limitation, need to put into operation two high-pressure heaters and two low-pressure heaters, and starts a high pressure draining pump and one
The achievable hydrophobic task of low pressure drainage pump.However, drainage control system in the prior art, when heating load is smaller, one
High pressure draining pump and a low pressure drainage pump must start simultaneously, and when heating load is larger, actual needs starts two high pressures and dredges
Water pump and two low pressure drainage pumps not only increase equipment consume, and increase energy consumption and production cost.In addition, working as
When high pressure draining pump and/or the failure of low pressure drainage pump need to overhaul, if corresponding heater is in the state that puts into operation, also need
Heater is switched over, increase the labor intensity of operations staff and the risk of maloperation.
Utility model content
The purpose of the utility model is to provide a kind of thermal power plant heat exchangers for district heating drainage control systems, can be according to reality
Border situation carries out free switching to the quantity that puts into operation of high and low pressure drainage pump, reduces energy consumption and equipment consume significantly, subtracts
The small labor intensity of staff, avoids maloperation risk.
The utility model provides a kind of thermal power plant heat exchangers for district heating drainage control system, including at least two hot high pressures
Net heater and at least two low pressure heat exchangers for district heatings, each high pressure heat exchangers for district heating are equipped with high pressure draining pipeline, each institute
It states low pressure heat exchangers for district heating and is equipped with low pressure drain water piping, be communicated with height between the high pressure draining pipeline of two of arbitrary neighborhood
It presses communicating pipe, high pressure valve is installed on the high-pressure connecting pipe；Connect between the low pressure drain water piping of two of arbitrary neighborhood
It is connected with low pressure communicating pipe, low pressure valve is installed on the low pressure communicating pipe；It further include being dredged to be connected to the adjacent high pressure
The intermediate connection pipe of waterpipe and the low pressure drain water piping, and the intervening vaive being installed on the intermediate connection pipe.
Preferably, the quantity of the high pressure heat exchangers for district heating is specially three, respectively the first high pressure heat exchangers for district heating,
Two high pressure heat exchangers for district heatings and third high pressure heat exchangers for district heating, the quantity of the low pressure heat exchangers for district heating is specially two, described
First branch line there are two being set on the high pressure draining pipeline of second high pressure heat exchangers for district heating, two first branched pipes
Road is respectively communicated with the high pressure draining pipeline in the first high pressure heat exchangers for district heating and the third high pressure heat exchangers for district heating
On, the first branching valve is respectively provided on two first branch lines.
It preferably, further include the 4th high pressure heat exchangers for district heating and the 5th high pressure heat exchangers for district heating, the 4th high pressure heat supply network
Second branched pipe road there are two setting on the high pressure draining pipeline of heater, two second branched pipe roads are respectively communicated to
The high pressure draining pipeline of the third high pressure heat exchangers for district heating and the high pressure of the 5th high pressure heat exchangers for district heating
On drain water piping, each second branched pipe road is equipped with the second branching valve.
It preferably, further include being installed on the high pressure draining pipeline and being arranged in parallel with two first branching valves
Third branching valve.
Preferably, further include be installed on the 4th high pressure heat exchangers for district heating the high pressure draining pipeline and with two
The 4th branching valve that second branching valve is arranged in parallel.
It preferably, further include for controlling each high pressure valve, the low pressure valve, the intervening vaive, described
The controller of the aperture and opening-closing process of one branching valve and second branching valve.
Preferably, the high pressure valve, the low pressure valve, the intervening vaive, first branching valve and described
Aperture indicating meter to show valve opening, the aperture indicating meter and the control are respectively installed on the second branching valve
Device electrical connection processed.
Preferably, the high pressure valve, the low pressure valve and the intervening vaive are specially electrically operated gate.
Compared with above-mentioned background technique, heat exchangers for district heating hydrophobic control system in thermal power plant provided by the utility model
System realizes adjacent high pressure using high-pressure connecting pipe by installing high-pressure connecting pipe between two adjacent high pressure draining pipelines
The connection of drain water piping, and high pressure valve is installed on high-pressure connecting pipe, it is similar, in two adjacent low pressure drain water pipings
Between be connected to low pressure communicating pipe, low pressure valve is installed on low pressure communicating pipe, at the same time, adjacent high pressure draining pipeline with
It is connected to intermediate connection pipe between low pressure drain water piping, intervening vaive is installed on intermediate connection pipe.So, when heating load compared with
When big, by opening corresponding high pressure valve, low pressure valve and intervening vaive, dredged by a high pressure draining pump and a low pressure
Water pump can simultaneously carry out multiple same level heat exchangers for district heatings hydrophobic；When heating load is smaller, by opening intervening vaive, by
Low pressure drainage pump can carry out simultaneously high pressure heat exchangers for district heating and low pressure heat exchangers for district heating hydrophobic.In addition, when high pressure draining pumps
And/or low pressure drainage pump closes the valve in respective line when breaking down or needing to overhaul, without switching heating
Device reduces labor intensity and maloperation risk.It can be seen that the thermal power plant heat exchangers for district heating drainage control system, it can
To carry out free switching to each valve according to the operation conditions of practical heating load size and the pump housing, to reduce equipment consume, drop
Low energy consumption saves production cost, ensures that system operates normally.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of embodiment of heat exchangers for district heating drainage control system in thermal power plant provided by the utility model
Structural schematic diagram；
Fig. 2 is another embodiment of heat exchangers for district heating drainage control system in thermal power plant provided by the utility model
Structural schematic diagram；
Wherein, the first high pressure of 1- heat exchangers for district heating, the second high pressure of 2- heat exchangers for district heating, 3- third high pressure heat exchangers for district heating,
4- low pressure heat exchangers for district heating, 5- high-pressure connecting pipe, 6- high pressure valve, 7- low pressure communicating pipe, 8- low pressure valve, 9- intermediate connection
Pipe, 10- intervening vaive, the first branch line of 11-, the first branching valve of 12-, the 4th high pressure heat exchangers for district heating of 13-, 14- the 5th
High pressure heat exchangers for district heating, 15- second branched pipe road, the second branching valve of 16-, 17- third branching valve, the 4th branch valve of 18-
Door.
Specific embodiment
The core of the utility model is to provide a kind of thermal power plant heat exchangers for district heating drainage control system, solves power generation
The problem that factory's energy consumption is high, equipment losing quantity is big.
In order to make those skilled in the art more fully understand the utility model, with reference to the accompanying drawing and specifically
The utility model is described in further detail for embodiment.
Referring to FIG. 1, Fig. 1 is the knot of heat exchangers for district heating drainage control system in thermal power plant provided by the utility model
Structure schematic diagram.
The utility model provides a kind of thermal power plant heat exchangers for district heating drainage control system, including high pressure heat exchangers for district heating
With low pressure heat exchangers for district heating 4, the quantity of high pressure heat exchangers for district heating and low pressure heat exchangers for district heating 4 is at least two, each hot high pressure
High pressure draining pipeline is respectively equipped on net heater, each low pressure heat exchangers for district heating 4 is equipped with low pressure drain water piping, high by enabling
Drainage pump and low pressure drainage pump is pressed to realize hydrophobic function.
High-pressure connecting pipe 5, high-pressure connecting pipe 5 and two high pressure drainings are installed between two adjacent high pressure draining pipelines
Pipeline is connected, and high pressure valve 6 is equipped on high pressure draining pipeline；It is respectively mounted between two low pressure drain water pipings of arbitrary neighborhood
There is low pressure communicating pipe 7, is connected respectively with two low pressure drain water pipings low pressure communicating pipe 7, low pressure is installed on low pressure communicating pipe 7
Valve 8；In addition, being also communicated with intermediate connection pipe 9, intermediate connection pipe between adjacent high pressure draining pipeline and low pressure drain water piping
Intervening vaive 10 is installed on 9.
So, by the way that intermediate connection pipe 9 is arranged between high pressure draining pipeline and low pressure drain water piping, and in
Between intervening vaive 10 was set on communicating pipe 9, when heating load is smaller, realized by opening intervening vaive 10 and low pressure valve 8
Low pressure drainage pump carries out high pressure heat exchangers for district heating and low pressure heat exchangers for district heating 4 hydrophobic simultaneously；When heating load is larger, by opening
Corresponding high pressure valve 6, low pressure valve 8 and intervening vaive 10 are opened, is by a high pressure draining pump and a low pressure drainage pump
Can be hydrophobic to the progress of multiple same level heat exchangers for district heatings simultaneously, to meet the hydrophobic demand of system.In addition, the thermal power plant heat supply network
Heater condensate control system also has many advantages, such as that maintenance is convenient, power consumption is low, long service life.
In a specific embodiment, the quantity of high pressure heat exchangers for district heating is three, the heating of respectively the first high pressure heat supply network
Device 1, the second high pressure heat exchangers for district heating 2 and third high pressure heat exchangers for district heating 3, the quantity of low pressure heat exchangers for district heating 4 are two, are located at
Set on intermediate high pressure draining pipeline there are two the first branch line 11, the other end of first branch line 11 respectively with two
High pressure draining pipeline is connected, and the first branching valve 12 is equipped on the first branch line 11, so, when event occurs for system
When barrier, the on-off by controlling each valve may insure that system operates normally, and thus improve the flexibility of high pressure draining pumping system.
In another specific embodiment, the quantity of high pressure heat exchangers for district heating is five, namely in the base of above-described embodiment
The 4th high pressure heat exchangers for district heating 13 and the 5th high pressure heat exchangers for district heating 14 are further increased on plinth, and are added in the 4th high pressure heat supply network
Second branched pipe road 15 there are two setting on the high pressure draining pipeline of hot device 13, two second branched pipe roads 15 are respectively communicated to third
On the high pressure draining pipeline of high pressure heat exchangers for district heating 3 and on the high pressure draining pipeline of the 5th high pressure heat exchangers for district heating 14, each
Two branch lines 15 are equipped with the second branching valve 16, to further increase the flexibility of high pressure draining pumping system.
On the basis of the first embodiment, when the quantity of high pressure heat exchangers for district heating is four, do not need to add branch,
It only needs to add a communicating pipe and a deck valve door, similarly, is analogous to three high pressure heat exchangers for district heatings, two hot high pressures of every increase
Net heater adds a branch line and a branching valve, and one is constituted per three adjacent high pressure heat exchangers for district heatings
Independent draining system, since the quantity of two monoblock heat supply network high pressure heat exchangers for district heatings in power plant's practical application is most absolutely
Number be three, and between the every set monoblock of power plant more than the unit in thermal power plant's practical application among heat supply network draining system also only
There are a communicating pipe and one to two deck valve door, therefore three high pressure heat exchangers for district heatings constitute an independent draining system.
The installation site of above-mentioned branch line should be set according to field device actual installation position, it is preferred that at selection
Branch line is installed additional in the high pressure heat exchangers for district heating in middle position, is arranged such, it can be ensured that increased duct length is most short,
Investment cost is more saved.
Below by taking three high pressure heat exchangers for district heatings as an example, the setting purpose of branch line and branching valve is illustrated.
For the power plant of part, the specification of the second high pressure heat exchangers for district heating 2 and the first high pressure heat exchangers for district heating 1 and third high pressure
Heat exchangers for district heating 3 is different, this result in the first high pressure heat exchangers for district heating 1, in third high pressure heat exchangers for district heating 3 any one with
, cannot be only with a high pressure draining pump come hydrophobic when second high pressure heat exchangers for district heating 2 is run simultaneously, reason is pump a certain
There can only be a revolving speed when carving operation, corresponding hydrophobic amount is also that uniquely, not can guarantee two high pressure heat exchangers for district heatings
Water level all maintains normal level, it is generally known that, the water level of high pressure heat exchangers for district heating is a very important prison in operation
Depending on parameter, water level is excessively high to be will lead to water and flows backward into steam pipe road is come, and threatens unit safety, it is too low to heat supply network circulating water heating effect not
Ideal influences efficiency.Now by taking the operation of the first high pressure heat exchangers for district heating 1 as an example, when the first high pressure heat exchangers for district heating 1 and the second high pressure
When 2 specification of heat exchangers for district heating is identical, even if being connected to the high pressure draining pump and the second high pressure heat supply network of the second high pressure heat exchangers for district heating 2
High pressure valve 6 between heater 2 and third high pressure heat exchangers for district heating 3 is problematic, can also be by being mounted on and the first high pressure
High pressure draining on the high pressure draining pipeline that heat exchangers for district heating 1 is connected pumps and is mounted on two high pressures on high-pressure connecting pipe 5
Valve 6 carries out hydrophobic；When 2 specification difference of the second high pressure heat exchangers for district heating, need to start on third high pressure heat exchangers for district heating 3
High pressure draining pump is hydrophobic to carry out to the second high pressure heat exchangers for district heating 2, if without the first branch line 11, the second high pressure heat supply network
Heater 2 must stop transport, and influence heat supply, it can be seen that, the effect of the first branch line 11 is bypass effect, it can be ensured that system
It operates normally.
In the example above, it is assumed that the case where being the high pressure valve 6 of high pressure draining pump and side while breaking down,
This has been small probability event in the actual production process of thermal power plant, so the first branch line 11 of design can cope with heat supply
Most of emergency situations in journey.If being further continued for increasing branch line and branching valve, system can be made to apply more flexible,
But considering for the enterprise practical condition of production, increase excessive branch line and branching valve, it will increase investment and inspection
Maintenance cost is repaired, benefit will have a greatly reduced quality.
In addition, in parallel with two the first branching valves 12 can also be set when the quantity of high pressure heat exchangers for district heating is three
Third branching valve 17 is set, it is similar, when the quantity of high pressure heat exchangers for district heating is five, can also further be arranged and two
The 4th branching valve 18 that second branching valve 16 is arranged in parallel, when the first branching valve 12 and/or the second branching valve 16 damage
When badly or needing repairing, by enabling third branching valve 17 or the 4th branching valve 18, it still may insure that system is normal
Operation, to further increase the safety of system.
In order to realize the automation control of above-mentioned each valve opening and closing process, above-mentioned high pressure valve 6, low pressure valve 8, intermediate valve
The 10, first branching valve 12 of door, the second branching valve 16, third branching valve 17 and the 4th branching valve 18 can be by controlling
Device control namely controller are electrically connected with each valve, and controller is equipped with multiple preset operating times, according to each preset operating time
It can control the aperture and opening and closing situation of each valve, to improve working efficiency.It should be noted that the specific structure of controller
And refer to the prior art for working principle, repeats no more herein.
It, can be in high pressure valve 6, low pressure valve 8,10, first points of intervening vaive in order to realize the visualization of valve opening
Aperture indicating meter to show valve opening is respectively installed on branch valve 12 and the second branching valve 16, so, is led to
The number for reading aperture indicating meter is crossed, water supply situation can be grasped, for the convenient automation control to water supply process, this is opened
Degree indicating meter can be electrically connected with the controller.
Preferably, high pressure valve 6, low pressure valve 8, intervening vaive 10, the first branching valve 12, the second branching valve 16,
Third branching valve 17 and the 4th branching valve 18 all can be electrically operated gates.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relationship or sequence.
Detailed Jie has been carried out to heat exchangers for district heating drainage control system in thermal power plant provided by the utility model above
It continues.Specific case used herein is expounded the principles of the present invention and embodiment, and above embodiments are said
The bright method and its core concept for being merely used to help understand the utility model.It should be pointed out that for the common of the art
For technical staff, without departing from the principle of this utility model, can also to the utility model carry out it is several improvement and
Modification, modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (8)
1. a kind of thermal power plant heat exchangers for district heating drainage control system, including at least two high pressure heat exchangers for district heatings and at least two
Platform low pressure heat exchangers for district heating (4), each high pressure heat exchangers for district heating are equipped with high pressure draining pipeline, each low pressure heat supply network heating
Device (4) is equipped with low pressure drain water piping, which is characterized in that is communicated with height between the high pressure draining pipeline of two of arbitrary neighborhood
It presses communicating pipe (5), high pressure valve (6) is installed on the high-pressure connecting pipe (5)；The low pressure drain pipe of two of arbitrary neighborhood
It is communicated between road low pressure communicating pipe (7), low pressure valve (8) is installed on the low pressure communicating pipe (7)；It further include to be connected to
The intermediate connection pipe (9) of adjacent the high pressure draining pipeline and the low pressure drain water piping, and be installed on the centre and connect
Intervening vaive (10) on siphunculus (9).
2. heat exchangers for district heating drainage control system in thermal power plant according to claim 1, which is characterized in that the high pressure
The quantity of heat exchangers for district heating is specially three, respectively the first high pressure heat exchangers for district heating (1), the second high pressure heat exchangers for district heating (2)
Quantity with third high pressure heat exchangers for district heating (3), the low pressure heat exchangers for district heating (4) is specially two, second hot high pressure
There are two being set on the high pressure draining pipeline of net heater (2) the first branch line (11), two first branch lines
(11) it is respectively communicated in the high pressure of the first high pressure heat exchangers for district heating (1) and the third high pressure heat exchangers for district heating (3)
On drain water piping, the first branching valve (12) are respectively provided on two first branch lines (11).
3. heat exchangers for district heating drainage control system in thermal power plant according to claim 2, which is characterized in that further include
Four high pressure heat exchangers for district heatings (13) and the 5th high pressure heat exchangers for district heating (14), the 4th high pressure heat exchangers for district heating (13) it is described
It is set on high pressure draining pipeline there are two second branched pipe road (15), two second branched pipe roads (15) are respectively communicated to described
The high pressure draining pipeline of third high pressure heat exchangers for district heating (3) and the height of the 5th high pressure heat exchangers for district heating (14)
It presses on drain water piping, each second branched pipe road (15) is equipped with the second branching valve (16).
4. heat exchangers for district heating drainage control system in thermal power plant according to claim 2, which is characterized in that further include peace
Loaded on the high pressure draining pipeline and the third branching valve (17) that is arranged in parallel with two first branching valves (12).
5. heat exchangers for district heating drainage control system in thermal power plant according to claim 3, which is characterized in that further include peace
The high pressure draining pipeline loaded on the 4th high pressure heat exchangers for district heating (13) and with two second branching valves (16)
The 4th branching valve (18) being arranged in parallel.
6. heat exchangers for district heating drainage control system in thermal power plant according to claim 3, which is characterized in that further include using
In each high pressure valve (6) of control, the low pressure valve (8), the intervening vaive (10), first branching valve (12)
With the aperture of second branching valve (16) and the controller of opening-closing process.
7. heat exchangers for district heating drainage control system in thermal power plant according to claim 6, which is characterized in that the high pressure
Valve (6), the low pressure valve (8), the intervening vaive (10), first branching valve (12) and second branch valve
Aperture indicating meter to show valve opening, the aperture indicating meter and controller electricity are respectively installed on door (16)
Connection.
8. described in any item thermal power plant heat exchangers for district heating drainage control systems, feature exist according to claim 1~7
In the high pressure valve (6), the low pressure valve (8) and the intervening vaive (10) are specially electrically operated gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920195243.3U CN209511978U (en) | 2019-02-13 | 2019-02-13 | A kind of thermal power plant heat exchangers for district heating drainage control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920195243.3U CN209511978U (en) | 2019-02-13 | 2019-02-13 | A kind of thermal power plant heat exchangers for district heating drainage control system |
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| Publication Number | Publication Date |
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| CN209511978U true CN209511978U (en) | 2019-10-18 |
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| CN201920195243.3U Active CN209511978U (en) | 2019-02-13 | 2019-02-13 | A kind of thermal power plant heat exchangers for district heating drainage control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375055A (en) * | 2020-02-25 | 2021-09-10 | Kc股份有限公司 | Gas supply system |
-
2019
- 2019-02-13 CN CN201920195243.3U patent/CN209511978U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375055A (en) * | 2020-02-25 | 2021-09-10 | Kc股份有限公司 | Gas supply system |
| CN113375055B (en) * | 2020-02-25 | 2023-08-04 | Kc股份有限公司 | Gas supply system |
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