CN110094786B - Device for adjusting circulating pump of heating power station by utilizing pressure of secondary network - Google Patents
Device for adjusting circulating pump of heating power station by utilizing pressure of secondary network Download PDFInfo
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- CN110094786B CN110094786B CN201910452980.1A CN201910452980A CN110094786B CN 110094786 B CN110094786 B CN 110094786B CN 201910452980 A CN201910452980 A CN 201910452980A CN 110094786 B CN110094786 B CN 110094786B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000001276 controlling effect Effects 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 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
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- 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
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- 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
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
-
- 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
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
- F24D3/1066—Distributors for heating liquids
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- 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 invention discloses a device for adjusting a circulating pump of a heating power station by using secondary network pressure, and mainly relates to the technical field of heating systems. The method comprises the following steps: the pressure difference measuring device is provided with a first wireless transmission device; the heat supply controller is internally provided with a second wireless transmission device; the pipeline resistance adjusting device comprises a shunting box connected with a water outlet of the circulating pump, a main pipeline is arranged at one end, away from the water outlet of the circulating pump, of the shunting box, a flow collecting box is arranged at one end, away from the shunting box, of the main pipeline, and a plurality of auxiliary pipelines are arranged between the shunting box and the flow collecting box; and a resistance device. The invention has the beneficial effects that: the automatic adjusting device can automatically adjust the circulating pump according to the return water supply pressure difference at the inlet of the heating pipe network of the hot building, can avoid the overload phenomenon of the circulating pump when the circulating pump is adjusted, and can ensure the service life of the circulating pump.
Description
Technical Field
The invention relates to the technical field of heating systems, in particular to a device for adjusting a circulating pump of a heating power station by using secondary network pressure.
Background
At present, in a heating system pipe network, a circulating pump in a heating power station supplies heat to a plurality of heat utilization buildings, and because the heat utilization buildings are different from a heat source secondary network in distance, the difference of the pressure of supply and return water at the inlet of the heating pipe network of each heat utilization building can be caused, so that the problem of uneven cooling and heating of each heat utilization building is caused, therefore, in order to ensure that the temperature difference of each heat utilization building is within an acceptable range, the circulating pump needs to be adjusted, the existing adjusting mode is to adjust the water temperature or the flow entering the heat utilization buildings by measuring the pressure difference of the supply and return water pipelines of each heat utilization building, but when adjusting the water temperature, the operating power of the circulating pump needs to be adjusted, the lift of the circulating pump in the heating system pipe network is often determined according to the pressure loss of the most unfavorable loop, and because the pipe network is out of balance (the near-end flow is overlarge, the phenomenon that the far-end flow is insufficient), the resistance coefficient of the actual whole pipe network is far smaller than the designed resistance coefficient of the most unfavorable loop, so that the circulating pump runs at a large shaft power and a low efficiency point, and even the motor is overloaded, when the running power of the circulating pump is adjusted, the circulating pump is easily overloaded, and the circulating pump is rapidly aged or burnt out.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a device for adjusting a circulating pump of a thermal power station by using secondary network pressure, which can automatically adjust the circulating pump according to the pressure difference of supply and return water at the inlet of a heating pipe network of a hot building, can avoid the overload phenomenon of the circulating pump when the circulating pump is adjusted, and can ensure the service life of the circulating pump.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an apparatus for regulating a heat station cycle pump using secondary network pressure, comprising:
the pressure difference measuring device is arranged on a water supply and return pipeline of the thermal secondary network of the hot building and is used for measuring the pressure difference of the water supply and return pipeline of the hot building, and a first wireless transmission device is arranged on the pressure difference measuring device;
the heat supply controller is arranged in the heating station and used for controlling the running power of the circulating pump, a second wireless transmission device is arranged in the heat supply controller, and the second wireless transmission device is in signal connection with the first wireless transmission device;
the pipeline resistance adjusting device comprises a shunting box connected with a water outlet of a circulating pump, a main pipeline is arranged at one end, away from the water outlet of the circulating pump, of the shunting box, a flow collecting box is arranged at one end, away from the shunting box, of the main pipeline, a water outlet pipe is arranged on the flow collecting box, a plurality of auxiliary pipelines are arranged between the shunting box and the flow collecting box, one end of each auxiliary pipeline is communicated with the shunting box, the other end of each auxiliary pipeline is communicated with the flow collecting box, an electromagnetic valve is installed on each auxiliary pipeline and used for controlling the on-off of the auxiliary pipeline, the pipeline resistance adjusting device further comprises an electromagnetic valve controller used for controlling the electromagnetic valve, and the electromagnetic valve controller is in signal connection with a heat supply;
the resistance device is installed on the auxiliary pipeline, the auxiliary pipeline comprises a first pipeline communicated with the flow distribution box and a second pipeline communicated with the flow collection box, the resistance device comprises a supporting pipe, one end of the supporting pipe is connected with the first pipeline, the other end of the supporting pipe is connected with the second pipeline, a stop block is arranged inside one end, close to the first pipeline, of the supporting pipe, a tapered hole is formed in the side face, away from the first pipeline, of the stop block, the tapered hole penetrates through the stop block, an annular plug is arranged inside one end, close to the second pipeline, of the supporting pipe, an valve core adaptive to the tapered hole is arranged on one side, away from the first pipeline, of the stop block, and a spring is arranged between the valve core and the annular plug.
The first pipeline and the second pipeline are both S-shaped.
And the elastic coefficients of the springs on different auxiliary pipelines are different.
And a valve is arranged on the auxiliary pipeline.
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes a differential pressure measuring device to measure the pressure difference of a water supply and return pipeline of a hot building, and transmits the measuring result to a heat supply controller in real time through a first wireless transmission device, the heat supply controller adjusts the operating power of a circulating pump, when the operating power of the circulating pump is improved, in order to avoid overload of the circulating pump, an electromagnetic valve controller controls an electromagnetic valve to open an auxiliary pipeline, a part of hot water discharged from the circulating pump enters the auxiliary pipeline, a part of hot water enters a main pipeline, the hot water in the main pipeline and the auxiliary pipeline is converged in a collecting box, a spring in the auxiliary pipeline applies resistance to the flow of water, when the pressure of the water is greater than the elastic force provided by the spring, the spring is compressed, a valve core is separated from a conical hole, a resistance device is conducted, the water circulates in the auxiliary pipeline, the resistance of the pipeline can be increased, and the overload phenomenon of the circulating pump can be avoided when, the service life of the circulating pump can be ensured.
Drawings
FIG. 1 is a control schematic of the present invention;
FIG. 2 is a schematic structural diagram of a pipeline resistance adjusting device;
fig. 3 is a schematic view of the structure of the resistance device.
The reference numbers in the drawings: 1. a differential pressure measuring device; 11. a first wireless transmission device; 2. a heat supply controller; 21. a second wireless transmission device; 3. a pipeline resistance adjustment device; 31. a shunt box; 32. a main pipeline; 33. a flow collection box; 34. a water outlet pipe; 35. an auxiliary line; 36. an electromagnetic valve; 37. a solenoid valve controller; 38. a first pipeline; 39. a second pipeline; 4. a resistance device; 41. supporting a tube; 42. a stopper; 43. annular plugging; 44. a valve core; 45. a spring; 5. and (4) a valve.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
The invention relates to a device for adjusting a circulating pump of a heating power station by utilizing the pressure of a secondary network, which comprises:
the system comprises a differential pressure measuring device 1, a first wireless transmission device 11 and a heat supply controller 2, wherein the differential pressure measuring device 1 is installed on a water supply and return pipeline of a thermal secondary network of a hot building and used for measuring the pressure difference of the water supply and return pipeline of the hot building, the first wireless transmission device 11 is arranged on the differential pressure measuring device 1, the differential pressure measuring device 1 is used for measuring the pressure difference of the water supply and return pipeline of the hot building, and the measurement result is transmitted to the heat supply controller 2 in real time through the first wireless transmission device 11;
the heat supply controller 2 is installed in the heating station and used for controlling the running power of the circulating pump, a second wireless transmission device 21 is arranged in the heat supply controller 2, the second wireless transmission device 21 is in signal connection with the first wireless transmission device 11, the heat supply controller 2 receives the measurement result of the differential pressure measurement device 1 through the second wireless transmission device 21, the running power of the circulating pump is adjusted according to the measurement result of the differential pressure measurement device 1, and the circulating pump can be automatically controlled;
the pipeline resistance adjusting device 3 comprises a shunting box 31 connected with a water outlet of a circulating pump, one end of the shunting box 31 far away from the water outlet of the circulating pump is provided with a main pipeline 32, one end of the main pipeline 32 far away from the shunting box 31 is provided with a flow collecting box 33, the flow collecting box 33 is provided with a water outlet pipe 34, a plurality of auxiliary pipelines 35 are arranged between the shunting box 31 and the flow collecting box 33, one end of each auxiliary pipeline 35 is communicated with the shunting box 31, the other end of each auxiliary pipeline is communicated with the flow collecting box 33, an electromagnetic valve 36 is installed on each auxiliary pipeline 35, each electromagnetic valve 36 is used for controlling the connection and disconnection of each auxiliary pipeline 35, the pipeline resistance adjusting device 3 further comprises an electromagnetic valve controller 37 used for controlling each electromagnetic valve 36, each electromagnetic valve controller 37 is in signal connection with the heat supply controller 2, and the pipeline resistance adjusting device 3 divides the flow pipeline of water flowing out of the circulating pump into a main, the on-off of each auxiliary pipeline 35 can be controlled through an electromagnetic valve 36;
the resistance device 4 is installed on an auxiliary pipeline 35, the auxiliary pipeline 35 comprises a first pipeline 38 communicated with the flow dividing box 31 and a second pipeline 39 communicated with the flow collecting box 33, the resistance device 4 comprises a supporting pipe 41, one end of the supporting pipe 41 is connected with the first pipeline 38, the other end of the supporting pipe 41 is connected with the second pipeline 39, a stop 42 is arranged inside one end of the supporting pipe 41 close to the first pipeline 38, a tapered hole is arranged on the side surface of the stop 42 far away from the first pipeline 38, the tapered hole penetrates through the stop 42, an annular plug 43 is arranged inside one end of the supporting pipe 41 close to the second pipeline 39, a valve core 44 adaptive to the tapered hole is arranged on one side of the stop 42 far away from the first pipeline, a spring 45 is arranged between the valve core 44 and the annular plug 43, the spring 45 provides resistance for the flow of water, and when the pressure of the water is greater than the elastic force provided by the spring 45, the spring 45 is compressed, the valve core 44 is separated from the conical hole, the resistance device 4 is conducted, water flows through the auxiliary pipeline 35, and the pipeline resistance can be increased;
when the running power of the circulating pump is increased, in order to avoid overload of the circulating pump, the heat supply controller 2 sends a control signal to the circulating pump, and simultaneously sends a control signal to the electromagnetic valve controller 37, the electromagnetic valve controller 37 controls the electromagnetic valve 36 to open the corresponding auxiliary pipeline 35, part of hot water discharged from the circulating pump enters the auxiliary pipeline 35, and part of the hot water enters the main pipeline 32, the hot water in the main pipeline 32 and the hot water in the auxiliary pipeline 35 are collected in the collecting box 33, the spring 45 in the resistance device 4 applies resistance to the flow of the water, when the pressure of the water is greater than the elastic force provided by the spring 45, the resistance device is conducted, the water flows through the auxiliary pipeline 35, the pipeline resistance can be increased, the phenomenon of overload of the circulating pump when the circulating pump is adjusted can be avoided, and the service life of the circulating pump can be.
Furthermore, in order to increase the resistance on the auxiliary line, the first line 38 and the second line 39 are both S-shaped.
Further, in order to adjust the resistance on the auxiliary line as needed, the spring coefficients of the springs 45 on the auxiliary line 35 are different, and various resistances can be obtained by different combinations.
Further, in order to ensure the operation of the present invention when the electromagnetic valve fails, a valve 5 is disposed on the auxiliary pipeline 35, and the valve 5 can be used to manually control the opening and closing of the auxiliary pipeline 35.
Example (b): the invention relates to a device for adjusting a circulating pump of a heating power station by utilizing the pressure of a secondary network, which comprises:
the pressure difference measuring device 1 is arranged on a heating power secondary network water supply and return pipeline of the hot building and used for measuring the pressure difference of the water supply and return pipeline of the hot building, and the pressure difference measuring device 1 can adopt an internet of things pressure sensor, appears in pairs and is respectively arranged on the water supply and return pipeline of the hot building. The pressure difference measuring device 1 is provided with a first wireless transmission device 11, the pressure difference measuring device 1 is used for measuring the pressure difference of a water supply and return pipeline of the hot building, and the measurement result is transmitted to the heat supply controller 2 in real time through the first wireless transmission device 11.
The heat supply controller 2 is installed in a heating station, a circulating pump controller is arranged in the heat supply controller 2 and used for controlling the running power of the circulating pump, a second wireless transmission device 21 is arranged in the heat supply controller 2, the second wireless transmission device 21 is in signal connection with the circulating pump controller, the second wireless transmission device 21 is in signal connection with the first wireless transmission device 11, the heat supply controller 2 receives the measurement result of the pressure difference measurement device 1 through the second wireless transmission device 21, the running power of the circulating pump is adjusted according to the measurement result of the pressure difference measurement device 1, and the circulating pump can be automatically controlled.
The pipeline resistance adjusting device 3 comprises a shunting box 31 connected with a water outlet of a circulating pump, a connecting pipe communicated with the circulating pump is welded on the shunting box 31, a flange is welded at the end part of the connecting pipe, a main pipeline 32 is welded at one end of the shunting box 31 far away from the water outlet of the circulating pump, a flow collecting box 33 is welded at one end of the main pipeline 32 far away from the shunting box 31, one end of the main pipeline 32 is communicated with the shunting box 31, the other end of the main pipeline is communicated with the flow collecting box 33, a water outlet pipe 34 is welded at one end of the flow collecting box 33 far away from the main pipeline 32, a plurality of auxiliary pipelines 35 are arranged between the shunting box 31 and the flow collecting box 33, one ends of the auxiliary pipelines 35 are communicated with the shunting box 31, the other ends of the auxiliary pipelines are communicated with the flow collecting box 33, flanges are welded at two ends of the auxiliary pipelines 35, mounting positions matched with the, the auxiliary pipeline 35 is provided with an electromagnetic valve 36, the electromagnetic valve 36 is used for controlling the on-off of the auxiliary pipeline 35, the pipeline resistance adjusting device 3 further comprises an electromagnetic valve controller 37 used for controlling the electromagnetic valve 36, the electromagnetic valve controller 37 is in signal connection with the heat supply controller 2, the pipeline resistance adjusting device 3 divides the flowing pipeline of the water flowing out of the circulating pump into a main pipeline and a plurality of branch pipelines, and the on-off of each auxiliary pipeline 35 can be controlled through the electromagnetic valve 36. Furthermore, in order to ensure the operation of the present invention when the electromagnetic valve fails, the valve 5 is disposed on the auxiliary pipeline 35, the valve 5 can be used to manually control the opening and closing of the auxiliary pipeline 35, and when the electromagnetic valve 36 fails, the auxiliary pipeline 35 can be manually disconnected.
And the resistance device 4 is arranged on the auxiliary pipeline 35, the auxiliary pipeline 35 is divided into two parts by taking the resistance device 4 as a boundary, and the auxiliary pipeline 35 comprises a first pipeline 38 communicated with the flow dividing box 31 and a second pipeline 39 communicated with the collecting box 33. In order to increase the resistance of the auxiliary pipeline, the first pipeline 38 and the second pipeline 39 may have a plurality of corners to increase the resistance of water flowing through, and preferably, the first pipeline 38 and the second pipeline 39 are both S-shaped. The resistance device 4 comprises a support pipe 41, one end of the support pipe 41 is in threaded connection with the first pipeline 38, the other end of the support pipe 41 is in threaded connection with the second pipeline 39, a stop block 42 is arranged inside one end of the support pipe 41 close to the first pipeline 38, the stop block 42 is in threaded connection with the support pipe 41, a tapered hole is arranged on the side face of the stop block 42 far away from the first pipeline 38, the tapered hole penetrates through the stop block 42, an annular plug 43 is arranged inside one end of the support pipe 41 close to the second pipeline 39, the annular plug 43 is in threaded connection with the support pipe 41, a valve core 44 adaptive to the tapered hole is arranged on one side of the stop block 42 far away from the first pipeline, a water flow channel is arranged on the valve core 44, a spring 45 is arranged between the valve core 44 and the annular plug 43, one end of the spring 45 is abutted against the valve core, when the pressure of the water is greater than the elastic force provided by the spring 45, the spring 45 is compressed, the valve core 44 is separated from the tapered hole, the resistance device 4 is conducted, and the water flows through the auxiliary pipeline 35, so that the pipeline resistance can be increased. Further, in order to adjust the resistance on the auxiliary line as needed, the spring coefficients of the springs 45 on the auxiliary line 35 are different, and various resistances can be obtained by different combinations.
When the running power of the circulating pump is increased, in order to avoid overload of the circulating pump, the heat supply controller 2 sends a control signal to the circulating pump, and simultaneously sends a control signal to the electromagnetic valve controller 37, the electromagnetic valve controller 37 controls the electromagnetic valve 36 to open the corresponding auxiliary pipeline 35, part of hot water discharged from the circulating pump enters the auxiliary pipeline 35, and part of the hot water enters the main pipeline 32, the hot water in the main pipeline 32 and the hot water in the auxiliary pipeline 35 are collected in the collecting box 33, the spring 45 in the resistance device 4 applies resistance to the flow of the water, when the pressure of the water is greater than the elastic force provided by the spring 45, the resistance device is conducted, the water flows through the auxiliary pipeline 35, the pipeline resistance can be increased, the phenomenon of overload of the circulating pump when the circulating pump is adjusted can be avoided, and the service life of the circulating pump can be.
Claims (4)
1. The utility model provides an utilize secondary network pressure to adjust device of heating power station circulating pump, includes pressure differential measuring device (1), heat supply controller (2), pressure differential measuring device (1) is installed on with hot building heating power secondary network supply return water pipeline for measure with the pressure differential of the supply return water pipeline of hot building, be equipped with first wireless transmission device (11) on pressure differential measuring device (1), heat supply controller (2) are installed in the heating power station, are used for controlling the operating power of circulating pump, its characterized in that: a second wireless transmission device (21) is arranged in the heat supply controller (2), and the second wireless transmission device (21) is in signal connection with the first wireless transmission device (11);
the device for adjusting the circulating pump of the heating power station by utilizing the pressure of the secondary network further comprises:
the pipeline resistance adjusting device (3) comprises a shunting box (31) connected with a water outlet of the circulating pump, a main pipeline (32) is arranged at one end, away from the water outlet of the circulating pump, of the shunting box (31), a collecting box (33) is arranged at one end, away from the shunting box (31), of the main pipeline (32), a water outlet pipe (34) is arranged on the collecting box (33), a plurality of auxiliary pipelines (35) are arranged between the shunting box (31) and the collecting box (33), one ends of the auxiliary pipelines (35) are communicated with the shunting box (31), the other ends of the auxiliary pipelines are communicated with the collecting box (33), electromagnetic valves (36) are mounted on the auxiliary pipelines (35), the electromagnetic valves (36) are used for controlling the on-off of the auxiliary pipelines (35), and the pipeline resistance adjusting device (3) further comprises an electromagnetic valve controller (37) used for controlling the electromagnetic valves (36), the electromagnetic valve controller (37) is in signal connection with the heat supply controller (2);
the resistance device (4) is installed on an auxiliary pipeline (35), the auxiliary pipeline (35) comprises a first pipeline (38) communicated with the flow dividing box (31) and a second pipeline (39) communicated with the flow collecting box (33), the resistance device (4) comprises a supporting pipe (41), one end of the supporting pipe (41) is connected with the first pipeline (38), the other end of the supporting pipe is connected with the second pipeline (39), a stop block (42) is arranged inside one end, close to the first pipeline (38), of the supporting pipe (41), a tapered hole is formed in the side face, far away from the first pipeline (38), of the stop block (42), the tapered hole penetrates through the stop block (42), an annular plug (43) is arranged inside one end, close to the second pipeline (39), of the supporting pipe (41), and a valve core (44) matched with the tapered hole is arranged on one side, far away from the first pipeline, of the stop block (42), and a spring (45) is arranged between the valve core (44) and the annular plug (43).
2. The apparatus for regulating a heat station cycle pump using secondary network pressure as set forth in claim 1, wherein: the first pipeline (38) and the second pipeline (39) are S-shaped.
3. The apparatus for regulating a heat station cycle pump using secondary network pressure as set forth in claim 1, wherein: the spring (45) on different auxiliary lines (35) has different elastic coefficients.
4. The apparatus for regulating a heat station cycle pump using secondary network pressure as set forth in claim 1, wherein: and a valve (5) is arranged on the auxiliary pipeline (35).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910452980.1A CN110094786B (en) | 2019-05-28 | 2019-05-28 | Device for adjusting circulating pump of heating power station by utilizing pressure of secondary network |
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| CN201910452980.1A CN110094786B (en) | 2019-05-28 | 2019-05-28 | Device for adjusting circulating pump of heating power station by utilizing pressure of secondary network |
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| CN110094786B true CN110094786B (en) | 2020-10-23 |
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| CN111396298B (en) * | 2020-03-26 | 2021-07-23 | 河南理工大学 | Circulating water pump active and passive frequency conversion combined control method based on pressure difference set value change |
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| KR20060085487A (en) * | 2005-01-24 | 2006-07-27 | 홍성화 | A hot water distributor with a quality control means |
| CN101825207B (en) * | 2009-03-07 | 2011-10-26 | 张宇 | Energy-saving flow automatic regulator and application method thereof in heat supply network flow regulation |
| CN105783083A (en) * | 2016-05-06 | 2016-07-20 | 唐山现代工控技术有限公司 | Method and device for adjusting heating station circulating pump through secondary network pressure |
| CN206656425U (en) * | 2016-12-30 | 2017-11-21 | 柯耐弗科技（上海）股份有限公司 | A kind of integrated water-mixing control device |
| CN207763051U (en) * | 2018-01-17 | 2018-08-24 | 山东沪汇节能科技有限公司 | A kind of easy-to-dismount heating network constant-current stabilizer |
| CN208547038U (en) * | 2018-03-05 | 2019-02-26 | 华星澳亚控股有限公司 | The ground heating system of more room independence temperature controls |
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Effective date of registration: 20210723 Address after: 063000 east of North Ring Road, Caofeidian Industrial Zone, Tangshan City, Hebei Province Patentee after: TANGSHAN CAOFEIDIAN THERMAL POWER Co.,Ltd. Address before: 063504 No. 199, xuegezhuang village, Tuoli Town, LUANNAN COUNTY, Tangshan City, Hebei Province Patentee before: Zhang Shuo Patentee before: Li Shuohui Patentee before: Qian Zhuo |