CN109340902A - A kind of adjustment type water stream injection pump is for heat balance system and its balance method - Google Patents
A kind of adjustment type water stream injection pump is for heat balance system and its balance method Download PDFInfo
- Publication number
- CN109340902A CN109340902A CN201811206987.7A CN201811206987A CN109340902A CN 109340902 A CN109340902 A CN 109340902A CN 201811206987 A CN201811206987 A CN 201811206987A CN 109340902 A CN109340902 A CN 109340902A
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- injection pump
- adjustment type
- stream injection
- heat supply
- water stream
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 238000002347 injection Methods 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The present invention relates to a kind of adjustment type water stream injection pumps for heat balance system and its balance method, belong to heating system technical field, specifically include adjustment type water stream injection pump, adjustment type water stream injection pump is mounted on building entrance heat supply pipeline or each unit entrance heat supply pipeline, the hot water inlet pipe of adjustment type water stream injection pump connects heat supply general pipeline, the return branch being arranged on the suction hose connection user return main of adjustment type water stream injection pump, the mixing tube of adjustment type water stream injection pump connects user hot water inlet pipe, heat supply pressure gauge and heat supply temperature table are installed on heat supply general pipeline, pressure of return water table and return water temperature table are installed on user return main, mixed water pressure table and water-mixing temperature table are installed on user hot water inlet pipe, return water regulating valve is installed in return branch；The present invention is acted on using the mixed water of water stream injection pump, and under the premise of guaranteeing system big flow in building, the flow of pipe network and thermal substation can be greatly reduced, and can improve two nets balance section, reduces excessive heat supply.
Description
Technical field
The present invention relates to a kind of adjustment type water stream injection pumps for heat balance system and its balance method, belongs to heating system technology
Field.
Background technique
In heating system, the balance of cell heat supply network never has very good solution, and problem uneven in temperature exists always, real
Circular flow is increased when border is run, improves heat supply temperature, and energy waste is serious.The control characteristic of common valve is poor, valve anthority
Small, Seepage-stress coupling is serious between valve, and Field adjustment workload is very big, and degree of regulation is very low.The adjusting of self-balancing valve
Precision is also very low, and service life is shorter (3-5), and the central variable-flow operation mode lance of self-balancing valve and circulating pump
Shield.Electric control valve degree of regulation is good, but service life is short (3-5), and maintenance workload is big, and technology is complicated, performance difficulty.
Water mixing machine set energy-saving effect is pretty good before building, but mounting condition is not easy to meet, and performance difficulty, maintenance workload is big, and noise is asked
Topic protrudes, and security risk is more.
Summary of the invention
To solve technical problem of the existing technology, the present invention provides a kind of adjustment type water stream injection pumps for thermal balance system
System and its balance method are acted on using the mixed water of water stream injection pump, can be substantially under the premise of guaranteeing system big flow in building
Degree reduces the flow of pipe network and thermal substation, and can improve two nets balance section, reduces excessive heat supply.
To achieve the above object, the technical scheme adopted by the invention is as follows a kind of adjustment type water stream injection pump is for thermal balance system
System, including adjustment type water stream injection pump, the adjustment type water stream injection pump be mounted on building entrance heat supply pipeline or each unit enters
On the heat supply pipeline of mouth, the hot water inlet pipe of the adjustment type water stream injection pump connects heat supply general pipeline, the adjustment type water stream injection pump
Suction hose connection user return main on the return branch that is arranged, mixing tube connection user's heat of the adjustment type water stream injection pump
Water water inlet pipe installs heat supply pressure gauge and heat supply temperature table on the heat supply general pipeline, installs return water on the user return main
Pressure gauge and return water temperature table install mixed water pressure table and water-mixing temperature table, the return water branch on the user hot water inlet pipe
Return water regulating valve is installed on pipe.
A kind of adjustment type water stream injection pump for heat balance method, including it is above-mentioned followed the steps below for heat balance system,
A, the type selecting of jet pump sets the rule of adjustment type water stream injection pump according to practical heat supply construction area, flow indicator and pressure difference
Lattice, throat pipe diameter mixed flow pipe diameter and factory aperture including adjustment type water stream injection pump；
B, the adjusting of jet pump has set aperture according to practical heat supply construction area, and actual use is not necessarily to adjust, then root
According to for thermal pressure, heat supply temperature, mixed water pressure and water-mixing temperature, the aperture of mixed water regulating valve is adjusted；When user indoor temperature mistake
When low, the stroke of the adjustment type water stream injection pump, formula are adjusted according to following formula are as follows:, whereinIndicate adjustment
The stroke of jet pump afterwards,Indicate that the current stroke of jet pump, tn indicate active user's room temperature, 20 indicate target Indoor Temperature
Degree；
Preferably, after installing the adjustment type water stream injection pump, flow deviation caused by the difference of resistance of district heating pipeline nets is within positive and negative 5%.
Compared with prior art, the present invention has the following technical effects.
1, the present invention in adjustment type water stream injection pump resistance be much larger than heat supply network resistance difference so that the resistance of heat supply network is different
The offset influence very little for heat supply network is caused, it is flat to improve two nets within positive and negative 5% for flow deviation caused by the difference of resistance of district heating pipeline nets
Weighing apparatus section reduces excessive heat supply, saves hot 5-30%.The hydraulic misadjustment of (even being eliminated) cell heat supply network is reduced, reduces (even being eliminated) no
Hot family makes user satisfied, improves People's livelihood.
2, has the function of mixed water.Jet pump is installed on building or unit entrance, it will be able to realize the small stream of heat supply network
The big flow in the building Liang He reduces thermal substation and two net flows, saves circulating pump power consumption 30-50%.Increase building in quantity of circulating water,
End heating system circulating head is improved, vertical misadjustment problem in building is alleviated.Thermal substation and two net flows are reduced, are greatly lowered
Thermal substation and two net resistances expand cell heat supply network heat range of heat.
3, subsystem changes the parameters such as flow, temperature, solves the problems, such as mixed for (mixed supply is warmed up in such as floor heating and piece).
4, control characteristic is good, can accurately control the flow (heat) into building (or unit entrance).
5, hydraulic stability is good, and the flow of this jet pump adjusts the flow effect very little to other jet pumps.
It 6, can be it is only necessary to know that this single parameter of building heating demand being capable of accurate completion balancing work.
7, it realizes that thermal substation center changes the frequency of circulating pump with can be convenient, does not influence the balance of heat supply network；And scene
Adjusting work it is seldom, substantially balancing work can be completed by jet pump type selection calculation.
8, the configuration of the present invention is simple, selection are reasonable, good reliability, long service life, non-maintaining.
Detailed description of the invention
Fig. 1 is mounting structure schematic diagram of the invention.
Fig. 2 is the hydraulic pressure analysis chart of balance system in the present invention.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1, a kind of adjustment type water stream injection pump is for heat balance system, including adjustment type water stream injection pump 1, adjustment type water
Jet pump is mounted on the heat supply pipeline of building entrance heat supply pipeline or each unit entrance, the heat of adjustment type water stream injection pump 1
Water water inlet pipe connects heat supply general pipeline 2, the return water branch being arranged on the suction hose connection user return main 3 of adjustment type water stream injection pump 1
Pipe 4, the mixing tube of adjustment type water stream injection pump 1 connect user hot water inlet pipe 5, and heat supply pressure gauge 6 is installed on heat supply general pipeline 2 and is supplied
Hot thermometer 7 installs pressure of return water table 8 and return water temperature table 9 on user return main 3, and installation is mixed on user hot water inlet pipe 5
Water pressure table 10 and water-mixing temperature table 11 install return water regulating valve 12 in return branch 4.
The present invention is installed on building or unit entrance, generates mixed water effect, guarantees system big flow, secondary network and heat in building
The small flow operation in power station, saves circulating pump power consumption 50% or so；Since secondary network flow reduces, the on-way resistance of secondary network is substantially
Degree is reduced, and the resistance of jet pump is much larger than the resistance error of pipe network, and two net equilibrium problems solve.As shown in Fig. 2, for example working as original
Have scheme resistance of pipe system be 6 meter water column when, the resistance of pipe system of jet pump system is only 1.5 meter water columns, design jet pump when not
Need to consider that flow deviation caused by resistance of pipe system factor is only positive and negative 2.5%.Find out from hydraulic pressure map analysis simultaneously, applies
Adjustment type water stream injection pump for heat balance method, ignore and enter the flow deviation of jet pump caused by the difference of resistance of pipe system just
Within minus 2.5%.4 meter water column of pressure head, system circulation power in enough buildings are reserved in building.Therefore, adjustment type jet pump can be from root
Solve the problems, such as that two net hydraulic regimes are lacked of proper care on this.Jet pump system resistance is very big, to other jet pumps when adjusting jet pump
Flow has little effect, and forms the operating condition one-to-one relationship of jet pump adjusting and corresponding building or unit entrance.This
A feature can make two net balance adjustments work significantly simplify, where need adjust just adjust where.
When the present invention is specifically used, follow the steps below,
A, the type selecting of jet pump sets the rule of adjustment type water stream injection pump according to practical heat supply construction area, flow indicator and pressure difference
Lattice, throat pipe diameter mixed flow pipe diameter and factory aperture including adjustment type water stream injection pump；
B, the adjusting of jet pump has set aperture according to practical heat supply construction area, and actual use is not necessarily to adjust, then root
According to for thermal pressure, heat supply temperature, mixed water pressure and water-mixing temperature, the aperture of mixed water regulating valve is adjusted；When user indoor temperature mistake
When low, the stroke of adjustment type water stream injection pump, formula are adjusted according to following formula are as follows:, whereinIt is sprayed after indicating adjustment
The stroke of pump is penetrated,Indicate that the current stroke of jet pump, tn indicate active user's room temperature, 20 indicate target indoor temperature；
The present invention using adjustment type water stream injection pump be installed on Lou Dong (unit entrance) for heat balance method.Utilize the mixed of jet pump
The flow of pipe network and thermal substation can be greatly reduced in the effect of water under the premise of guaranteeing system big flow in building.So that pipe
The resistance difference of net becomes compared with the design head of jet pump can be with ignored secondary cause.Due to the valve anthority of jet pump
Very big, the control characteristic of jet pump is fine, and the hydraulic stability of heating system is fine, and the adjusting of jet pump is controlled with it
Building (unit entrance) form one-to-one relationship.This new simple for heat balance method, reliable, energy conservation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all wrap within the scope of the present invention within mind and principle.
Claims (3)
1. a kind of adjustment type water stream injection pump is for heat balance system, including adjustment type water stream injection pump, it is characterised in that: the adjusting
Type water stream injection pump is mounted on the heat supply pipeline of building entrance heat supply pipeline or each unit entrance, the adjustment type water injection
The hot water inlet pipe of pump connects heat supply general pipeline, is arranged on the suction hose connection user return main of the adjustment type water stream injection pump
Return branch, the mixing tube of the adjustment type water stream injection pump connect user hot water inlet pipe, install heat supply on the heat supply general pipeline
Pressure gauge and heat supply temperature table install pressure of return water table and return water temperature table, user's hot water on the user return main
Mixed water pressure table and water-mixing temperature table are installed on water inlet pipe, return water regulating valve is installed in the return branch.
2. a kind of adjustment type water stream injection pump is for heat balance method, including above-mentioned for heat balance system, which is characterized in that according to following
Step carries out,
A, the type selecting of jet pump sets the rule of adjustment type water stream injection pump according to practical heat supply construction area, flow indicator and pressure difference
Lattice, throat pipe diameter mixed flow pipe diameter and factory aperture including adjustment type water stream injection pump；
B, the adjusting of jet pump has set aperture according to practical heat supply construction area, and actual use is not necessarily to adjust, then root
According to for thermal pressure, heat supply temperature, mixed water pressure and water-mixing temperature, the aperture of mixed water regulating valve is adjusted；When user indoor temperature mistake
When low, the stroke of the adjustment type water stream injection pump, formula are adjusted according to following formula are as follows:, whereinIt indicates to adjust
The stroke of jet pump after whole,Indicate that the current stroke of jet pump, tn indicate active user's room temperature, 20 indicate in target chamber
Temperature.
3. a kind of adjustment type water stream injection pump according to claim 2 is for heat balance method, which is characterized in that install the tune
After nodal pattern water stream injection pump, flow deviation caused by the difference of resistance of district heating pipeline nets is within positive and negative 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206987.7A CN109340902A (en) | 2018-10-17 | 2018-10-17 | A kind of adjustment type water stream injection pump is for heat balance system and its balance method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206987.7A CN109340902A (en) | 2018-10-17 | 2018-10-17 | A kind of adjustment type water stream injection pump is for heat balance system and its balance method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340902A true CN109340902A (en) | 2019-02-15 |
Family
ID=65310440
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811206987.7A Pending CN109340902A (en) | 2018-10-17 | 2018-10-17 | A kind of adjustment type water stream injection pump is for heat balance system and its balance method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131219A (en) * | 2019-06-12 | 2019-08-16 | 青岛海瑞智能工程有限公司 | Equal pressure difference increasing flow control system and its method |
| CN115013862A (en) * | 2022-06-01 | 2022-09-06 | 浙江英集动力科技有限公司 | Heat supply system autonomous optimization operation method based on jet pump and auxiliary circulating pump |
| CN115111626A (en) * | 2022-06-21 | 2022-09-27 | 北方联合电力有限责任公司呼和浩特金桥热电厂 | Heat exchange station water mixing and heating system combined with room temperature monitoring and adjusting and operation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110131219A (en) * | 2019-06-12 | 2019-08-16 | 青岛海瑞智能工程有限公司 | Equal pressure difference increasing flow control system and its method |
| CN115013862A (en) * | 2022-06-01 | 2022-09-06 | 浙江英集动力科技有限公司 | Heat supply system autonomous optimization operation method based on jet pump and auxiliary circulating pump |
| CN115013862B (en) * | 2022-06-01 | 2023-05-16 | 浙江英集动力科技有限公司 | Autonomous optimal operation method of heating system based on jet pump and auxiliary circulating pump |
| CN115111626A (en) * | 2022-06-21 | 2022-09-27 | 北方联合电力有限责任公司呼和浩特金桥热电厂 | Heat exchange station water mixing and heating system combined with room temperature monitoring and adjusting and operation method |
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Application publication date: 20190215 |
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