CN219775869U - Secondary network backwater heating system of ground heat exchange station - Google Patents
Secondary network backwater heating system of ground heat exchange station Download PDFInfo
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- CN219775869U CN219775869U CN202320087538.5U CN202320087538U CN219775869U CN 219775869 U CN219775869 U CN 219775869U CN 202320087538 U CN202320087538 U CN 202320087538U CN 219775869 U CN219775869 U CN 219775869U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The utility model discloses a secondary network backwater heating system of an aboveground heat exchange station, which comprises a heat exchanger, a secondary network circulating pump and further comprises the following components: a solar collector and valve assembly; the solar heat collector is respectively connected with the heat exchanger and the secondary network circulating pump; the valve assembly comprises a first valve, a second valve and a third valve; the first valve is arranged at the inlet of the solar heat collector, the second valve is arranged on a pipeline between the outlet of the solar heat collector and the inlet of the heat exchanger, and the third valve is arranged on a pipeline between the outlet of the solar heat collector and the outlet of the heat exchanger; according to the utility model, the solar heat collector is connected between the secondary network circulating pump and the heat exchanger in the existing heat exchange station system, and a part of heat consumed by the heat supply network can be supplemented by solar energy, so that the return water temperature of the secondary network is increased, and the heat consumed by heat transfer of the primary network is reduced.
Description
Technical Field
The utility model relates to the technical field of heat exchange station energy conservation, in particular to a secondary network backwater heating system of an overground heat exchange station.
Background
Energy conservation, emission reduction and energy consumption reduction are main development directions for seeking updating on the premise of ensuring heat supply quality in the future heat supply industry. The secondary network backwater system of the heat exchange station in the prior art is not provided with a heating device, so that the purpose of effectively utilizing the secondary network to save energy sources can not be achieved.
Solar energy is the most common novel energy source of environmental protection, safety and no pollution around us, reasonably and effectively converts solar energy into heat energy to be applied to daily heating, so that the saving of heat energy can be realized, and in the traditional heat supply, coal is used as a carrier of heat, so that the saving of heat is equivalent to the saving of coal, and the carbon emission is reduced.
Therefore, how to provide a secondary network backwater heating system of an above-ground heat exchange station, which can use solar energy to reduce heat transfer consumption, is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the utility model provides a secondary network backwater heating system of an overground heat exchange station, which solves the problem that solar energy cannot be effectively utilized in the prior art so as to achieve the purpose of saving energy.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the secondary network backwater heating system of the ground heat exchange station comprises a heat exchanger and a secondary network circulating pump, and further comprises: a solar collector and valve assembly;
the solar heat collector is respectively connected with the heat exchanger and the secondary network circulating pump;
the valve assembly comprises a first valve, a second valve and a third valve;
the first valve is arranged at the inlet of the solar heat collector, the second valve is arranged on a pipeline between the outlet of the solar heat collector and the inlet of the heat exchanger, and the third valve is arranged on a pipeline between the outlet of the solar heat collector and the outlet of the heat exchanger;
when the heat supply requirement is lower than a preset requirement threshold, the first valve and the third valve are opened, and the second valve is closed;
when the heat supply demand is higher than a preset demand threshold, the first valve and the second valve are opened, and the third valve is closed.
Preferably, the device also comprises a temperature collector and a temperature controller;
the temperature collector is connected with the temperature controller, and the temperature controller is respectively connected with the first valve, the second valve and the third valve;
the temperature collector collects outdoor temperature data and then transmits the outdoor temperature data to the temperature controller, when the temperature controller judges that the temperature is higher than a preset temperature threshold value, the first valve and the third valve are controlled to be opened, when the second valve is closed and is lower than the preset temperature threshold value, the first valve and the second valve are controlled to be opened, and the third valve is controlled to be closed.
Preferably, the valve assembly further comprises a fourth valve;
the fourth valve is arranged on a pipeline between the inlet of the solar heat collector and the inlet of the heat exchanger; when the fourth valve is opened, the first valve, the second valve and the third valve are all closed, and the solar collector is isolated.
Compared with the prior art, the utility model discloses a secondary network backwater heating system of an overground heat exchange station, which is characterized in that a solar heat collector is connected between a secondary network circulating pump and a heat exchanger in the heat exchange station system, and under the condition that outdoor temperature is high in the daytime in the initial cold period and the final cold period, namely, heating demand is low, the solar heat collector can be independently used for heating by controlling the conduction of a valve, and a part of heat consumed by a heat supply network is supplemented by solar energy, so that the backwater temperature of the secondary network is increased, the heat consumed by heat transfer of a primary network is reduced, and the energy consumption is further reduced; when the heating demand is high in the severe cold period, the solar heat collector and the plate heat exchanger can be connected in series through the conduction of the control valve, and the secondary net backwater enters the plate heat exchanger after being preheated by the solar heat collector, so that the heat consumption of the primary net is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure provided by the present utility model;
the solar heat collector comprises a heat exchanger-1, a secondary network circulating pump-2, a solar heat collector-3, a first valve-4, a second valve-5, a third valve-6 and a fourth valve-7.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model discloses a secondary network backwater heating system of an overground heat exchange station, which comprises a heat exchanger 1 and a secondary network circulating pump 2, and further comprises: a solar collector 3 and a valve assembly;
the solar heat collector 3 is respectively connected with the heat exchanger 1 and the secondary network circulating pump 2;
the valve assembly comprises a first valve 4, a second valve 5 and a third valve 6;
the first valve 4 is arranged at the inlet of the solar heat collector 3, the second valve 5 is arranged on a pipeline between the outlet of the solar heat collector 3 and the inlet of the heat exchanger 1, and the third valve 6 is arranged on a pipeline between the outlet of the solar heat collector 3 and the outlet of the heat exchanger 1;
when the heat supply requirement is lower than a preset requirement threshold, the first valve 4 and the third valve 6 are opened, and the second valve 5 is closed;
when the heating demand is above the preset demand threshold, the first valve 4 and the second valve 5 are opened and the third valve 6 is closed.
It should be noted that:
in switching between the conventional circulation system and the solar heating system of the present utility model, the second valve 5 is opened and then the third valve 6 is closed.
In order to further implement the technical scheme, the intelligent temperature control system also comprises a temperature collector and a temperature controller;
the temperature collector is connected with the temperature controller, and the temperature controller is respectively connected with the first valve 4, the second valve 5 and the third valve 6;
the temperature collector collects outdoor temperature data and then transmits the data to the temperature controller, when the temperature controller judges that the temperature is higher than a preset temperature threshold value, the first valve 4 and the third valve 6 are controlled to be opened, the second valve 5 is controlled to be closed, and when the temperature is lower than the preset temperature threshold value, the first valve 4 and the second valve 5 are controlled to be opened, and the third valve 6 is controlled to be closed.
To further implement the above solution, the valve assembly further comprises a fourth valve 7;
the fourth valve 7 is arranged on a pipeline between the inlet of the solar heat collector 3 and the inlet of the heat exchanger 1; when the fourth valve 7 is opened and the first valve 4, the second valve 5 and the third valve 6 are all closed, the solar collector 3 is isolated.
It should be noted that:
when the solar heat collector is overhauled, the fourth valve 7 is opened, the first valve 4, the second valve 5 and the third valve 6 are closed, the solar heat collector 3 is isolated from the original system, the heat exchange station can be restored to the original heating mode, and the solar heat collector 3 can be cleaned and overhauled; the same applies to the cleaning process.
The utility model will be further illustrated by the following examples:
the system is mainly applied to heat exchange stations independently built on the ground, and the roof and the surrounding air space of the heat exchange stations need to be provided with spaces for arranging solar heat collectors; in this embodiment, taking a heat exchange station of a certain district as an example, the heating area of the district is about 10000 square meters, geothermal heating is performed, the heat exchange station is located in the eastern side space of the district and is an overground one-layer building, the roof of the heat exchange station has good lighting, and solar heat collecting pipes are fully laid, and the engineering concrete flow is as follows:
1. the pipe diameter of a main water return pipeline of the secondary network in the heat exchange station is DN150, a main pipe at the outlet of a circulating pump of the heat outlet exchange station is led to be connected with a branch with the pipe diameter to be connected with a solar heat collector 3, an outlet is connected with a tee joint, one end of the main pipe is connected with a main pipe at the return inlet of the secondary network of the plate heat exchanger 1, the other end of the main pipe is connected with a main pipe at the water supply of the secondary network of the plate heat exchange station, and a welded ball valve is arranged at the valve position around the upper drawing;
2. when the solar heat collector operates in the initial cold period, the outdoor temperature is 2-8 ℃, the temperature of the secondary net backwater is 28 ℃ before entering the solar heat collector 3, the temperature rises to 34 ℃ after passing through the solar heat collector 3, the temperature rises to 6 ℃, and the heating temperature can basically meet the indoor heating requirement of 18 ℃ when the outdoor temperature is higher.
3. When the solar heat collector is operated in a severe cold period, the outdoor temperature is-10-18 ℃, the temperature of the secondary net backwater is 30 ℃ before entering the solar heat collector 3, the temperature rises to 35 ℃ after passing through the solar heat collector 3, the temperature rise reaches 5 ℃, and the temperature rise reaches 41 ℃ after passing through the plate heat exchanger 1 to be supplied to a user side, wherein nearly half of heat is supplied by the solar heat collector 3, the heat exchange amount of the plate heat exchanger is reduced, and the energy saving is realized.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. The utility model provides a ground heat exchange station second grade net return water heating system, includes heat exchanger and secondary net circulating pump, its characterized in that still includes: a solar collector and valve assembly;
the solar heat collector is respectively connected with the heat exchanger and the secondary network circulating pump;
the valve assembly comprises a first valve, a second valve and a third valve;
the first valve is arranged at the inlet of the solar heat collector, the second valve is arranged on a pipeline between the outlet of the solar heat collector and the inlet of the heat exchanger, and the third valve is arranged on a pipeline between the outlet of the solar heat collector and the outlet of the heat exchanger;
when the heat supply requirement is lower than a preset requirement threshold, the first valve and the third valve are opened, and the second valve is closed;
when the heat supply demand is higher than a preset demand threshold, the first valve and the second valve are opened, and the third valve is closed.
2. The system for heating the return water of the secondary network of the ground heat exchange station according to claim 1, further comprising a temperature collector and a temperature controller;
the temperature collector is connected with the temperature controller, and the temperature controller is respectively connected with the first valve, the second valve and the third valve;
the temperature collector collects outdoor temperature data and then transmits the outdoor temperature data to the temperature controller, when the temperature controller judges that the temperature is higher than a preset temperature threshold value, the first valve and the third valve are controlled to be opened, when the second valve is closed and is lower than the preset temperature threshold value, the first valve and the second valve are controlled to be opened, and the third valve is controlled to be closed.
3. A ground heat exchange station secondary network backwater heating system according to claim 1, wherein said valve assembly further comprises a fourth valve;
the fourth valve is arranged on a pipeline between the inlet of the solar heat collector and the inlet of the heat exchanger; when the fourth valve is opened, the first valve, the second valve and the third valve are all closed, and the solar collector is isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320087538.5U CN219775869U (en) | 2023-01-30 | 2023-01-30 | Secondary network backwater heating system of ground heat exchange station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320087538.5U CN219775869U (en) | 2023-01-30 | 2023-01-30 | Secondary network backwater heating system of ground heat exchange station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219775869U true CN219775869U (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320087538.5U Active CN219775869U (en) | 2023-01-30 | 2023-01-30 | Secondary network backwater heating system of ground heat exchange station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219775869U (en) |
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2023
- 2023-01-30 CN CN202320087538.5U patent/CN219775869U/en active Active
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