CN112268310A - Novel heating system for heating by utilizing return water of cogeneration heat supply network - Google Patents
Novel heating system for heating by utilizing return water of cogeneration heat supply network Download PDFInfo
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- CN112268310A CN112268310A CN202011138876.4A CN202011138876A CN112268310A CN 112268310 A CN112268310 A CN 112268310A CN 202011138876 A CN202011138876 A CN 202011138876A CN 112268310 A CN112268310 A CN 112268310A
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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
- F24D19/0002—Means for connecting central heating radiators to circulation pipes
- F24D19/0009—In a two pipe system
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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
- F24D19/08—Arrangements for drainage, venting or aerating
- F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
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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
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model provides an utilize novel heating system of cogeneration heat supply network return water heating, through electrical control valve, one-way heat metering device, the ball valve, the check valve, the solenoid valve, the combination pipeline of return water force (forcing) pump and a heat supply network water supply flow limiter once disposes the heat supply network return water once at the unit heating heat exchanger of heating hot water system one side to continue to be used for the system's heat supply with the heat that the return water contains, can increase pipe network heating capacity under the situation that need not carry out system transformation to current pipe network, open up new way for improving heat supply energy utilization efficiency and energy-concerving and environment-protective.
Description
Technical Field
The invention relates to a cogeneration centralized heating technology, in particular to a novel heating system for heating by using the return water of a cogeneration heat supply network.
Background
The combined heat and power generation changes the cognition that thermal power generation forms a large amount of waste heat in a mode of jointly generating thermal power and thermal heat energy, and is an effective way for maximally utilizing energy. For urban building group cold season heating, cogeneration centralized heating is the most cost-effective method for reducing the carbon emission of a heating system in cold climates. With the development of social economy and the continuous improvement of urbanization level, the central heating industry of China develops rapidly, and the cogeneration central heating also becomes the main heating mode of northern towns. However, from the global perspective of heating projects, the following problems and challenges are not negligible: on one hand, because a centralized heating system is large in scale and high in investment, the construction speed cannot meet the requirement of a rapidly increased heat load, and the insufficient heat source and the limited conveying capacity become one of the main problems faced by the urban heat supply network; on the other hand, with the increasing emphasis of the country on environmental protection, how to effectively improve the heat supply management level and improve the energy utilization efficiency so as to save energy, reduce consumption and protect the environment becomes a new challenge in the heat supply industry. The inventor finds that the return water temperature of the primary heat supply network of the existing cogeneration heat supply mode is generally higher, and a large amount of heat is not fully utilized. The inventor thinks that if the heat contained in the primary backwater is used for heating, the temperature of the backwater is further reduced, the situations of insufficient heat source and insufficient conveying capacity of the urban heat supply network can be improved, and the heat supply system has great significance for saving energy, reducing consumption and improving the utilization efficiency of energy. In view of the above, the present inventors have completed the present invention.
Disclosure of Invention
Aiming at the defects or shortcomings in the prior art, the invention provides a novel heating system for heating by utilizing the return water of a cogeneration heat supply network, which allocates the return water of the primary heat supply network at the primary side of a unit heating heat exchanger of a heating hot water system through a combined pipeline of an electric regulating valve, a one-way heat metering device, a ball valve, a check valve, an electromagnetic valve, a return water pressure pump and a primary heat supply network water supply flow limiter, so that the heat contained in the return water is continuously used for system heating, the heating capacity of the pipe network can be increased under the condition that the system transformation of the existing primary pipe network is not needed, and a new way is developed for improving the utilization efficiency of heating energy and saving energy.
The technical scheme of the invention is as follows:
the utility model provides an utilize novel heating system of cogeneration heat supply network return water heating, includes the unit heating heat exchanger among the heating hot water system, its characterized in that, unit heating heat exchanger once inclines that the import first-pass connects a heat supply network return water input port through a return water force (forcing) pump, and the second-pass connects a heat supply network water supply input port through a heat supply network water supply flow limiter, unit heating heat exchanger once inclines that the export connects a heat supply network return water delivery outlet through the one-way heat metering device of second.
The outlet end of the primary water return pressure pump is connected with the primary side inlet of the unit heating heat exchanger through the left side flexible joint reducer pipe assembly, the inlet end of the primary water return pressure pump is connected with one end of a tenth ball valve and the outlet of a first check valve through the right side flexible joint reducer pipe assembly respectively, the inlet of the first check valve is connected with the primary heat supply network return water inlet through an eighth ball valve, the other end of the tenth ball valve is connected with one end of an eleventh ball valve and one end of an electric regulating valve respectively, the other end of the electric regulating valve is connected with the primary heat supply network water supply flow limiter through a ninth ball valve, and the other end of the eleventh ball valve is connected with the primary side inlet of the unit heating heat exchanger through a second check valve.
The primary heat supply network water supply flow limiter is connected with the primary heat supply network water supply input port sequentially through the first one-way heat metering device, the second Y-shaped dirt remover and the third ball valve.
And the eighth ball valve is connected with the primary heat supply network backwater input port sequentially through the first Y-shaped dirt separator and the second ball valve.
The second one-way heat metering device is respectively connected with one end of the first ball valve and one end of the sixth ball valve through a seventh ball valve, the other end of the first ball valve is connected with the return water outlet of the primary heat supply network, the other end of the sixth ball valve is connected with the inlet of the safety valve and the inlet of the third Y-shaped dirt separator respectively after being sequentially connected with the secondary heating side water supplementing constant pressure flowmeter and the second electromagnetic valve, the outlet of the third Y-shaped dirt separator is respectively connected with one end of the first stop valve, one end of the second stop valve and the inlet end of the heating circulating pump, the outlet end of the heating circulating pump is connected with the inlet of the secondary side of the unit heating heat exchanger, the two ends of the heating circulating pump are both provided with a flexible joint reducer pipe assembly, the other end of the first stop valve and the other end of the second stop valve are respectively connected with an inlet and an outlet of the vacuum degasser, and an inlet of the safety valve is connected with a heating water return input port through a fifth ball valve.
And the outlet of the secondary side of the unit heating heat exchanger is connected with a heating water supply outlet through a fourth ball valve.
The inlet of the safety valve is connected with the drainage outlet of the drainage ditch through a first electromagnetic valve.
The unit heating heat exchanger is a heating plate type heat exchanger.
The invention has the following technical effects: the invention discloses a novel heating system for heating by utilizing return water of a cogeneration heat supply network, belongs to a novel heating mode for heating by utilizing return water of a cogeneration primary heat supply network, increases the heating capacity of the pipe network under the condition of not needing to perform system reconstruction on the conventional primary pipe network, and can develop a new way for improving the utilization efficiency of heating energy and saving energy and protecting environment.
The invention relates to a heating system for supplying heat by utilizing return water of a heat and power cogeneration heat network, which comprises the following main equipment and accessories: heat exchanger, water pump, flow limiter, vacuum degasser, dirt separator, various valves and automatic control instrument. The primary side of the system is a three-pipe system, which is respectively a water supply inlet, a water return inlet and a water return outlet. And the primary water return pressurizing pump operates, primary heat supply network water return is introduced into the unit heating heat exchanger for heat exchange, and heated secondary side low-temperature water for heating enters a terminal building for heat supply. And the primary return water after further temperature reduction is converged into a primary heat supply network return water pipe of the city again. When the heat supply can not be satisfied in the extremely cold period, a certain amount of primary water supply can be mixed to increase the heat supply temperature. The primary side heat supply regulation is completed by the combined action of a pressure pump and an electric regulating valve, and the secondary side water supplement constant pressure of the heating is provided by primary water return.
Drawings
Fig. 1 is a schematic structural diagram of a novel heating system for heating by using return water of a cogeneration heat network.
The reference numbers are listed below: 1-a primary heat supply network backwater output port; 2-a first heat supply network backwater input port; 3-a primary heat supply network water supply input port; 4-heating water supply outlet; 5-heating backwater input port; 6-primary water return pressurizing pump; 7-heating circulating pump; 8-vacuum degasser; 9-unit heating heat exchanger; 10-leading to a drainage ditch drain outlet; C1-C3-the first Y-shaped dirt separator to the third Y-shaped dirt separator; d-the flexible joint reducing pipe assembly; E1-E2-first to second solenoid valves; h-heating secondary side water replenishing constant pressure flowmeter; J1-J2 from the first stop valve to the second stop valve; m-electric control valve; ML-primary heat network supply water flow restrictor; S1-S2-first to second check valves; SV-safety valves; V1-V11-first ball valve to eleventh ball valve; W1-W2-first unidirectional heat metering device to second unidirectional heat metering device.
Detailed Description
The invention is described below with reference to the accompanying drawing (fig. 1).
Fig. 1 is a schematic structural diagram of a novel heating system for heating by using return water of a cogeneration heat network. Referring to fig. 1, a novel heating system for heating by utilizing return water of a cogeneration heat supply network comprises a unit heating heat exchanger 9 in a heating hot water system, wherein a first path of a primary side inlet of the unit heating heat exchanger 9 is connected with a primary heat supply network return water inlet 2 through a primary return water pressure pump 6, a second path of the unit heating heat exchanger is connected with a primary heat supply network water supply inlet 3 through a primary heat supply network water supply flow limiter ML, and a primary side outlet of the unit heating heat exchanger 9 is connected with a primary heat supply network return water outlet 1 through a second unidirectional heat metering device W2. The exit end of the primary water return pressure pump 6 is connected through a left side soft joint reducing pipe assembly D the import of the primary side of the unit heating heat exchanger 9, the entrance end of the primary water return pressure pump 6 is connected with the one end of a tenth ball valve V10 and the export of a first check valve S1 through a right side soft joint reducing pipe assembly D respectively, the import of the first check valve S1 is connected through an eighth ball valve V8 the input port 2 of the primary heat supply network return water, the other end of the tenth ball valve V10 is connected with the one end of an eleventh ball valve V11 and the one end of an electric control valve M respectively, the other end of the electric control valve M is connected through a ninth ball valve V9 the primary heat supply network water flow limiter ML, the other end of the eleventh ball valve V11 is connected through a second check valve S2 the import of the primary side of.
The primary heat supply network water supply flow limiter ML is connected with the primary heat supply network water supply input port 3 through a first one-way heat metering device W1, a second Y-shaped dirt separator C2 and a third ball valve V3 in sequence. And the eighth ball valve V8 is connected with the primary heat supply network return water input port 2 through a first Y-shaped dirt separator C1 and a second ball valve V2 in sequence. The second one-way heat metering device W2 is respectively connected with one end of a first ball valve V1 and one end of a sixth ball valve V6 through a seventh ball valve V7, the other end of the first ball valve V1 is connected with the primary heat supply network backwater output port 1, the other end of the sixth ball valve V6 is respectively connected with an inlet of a safety valve SV and an inlet of a third Y-shaped dirt separator C3 after sequentially passing through a heating secondary side water replenishing constant pressure flowmeter H and a second electromagnetic valve E2, an outlet of the third Y-shaped dirt separator C3 is respectively connected with one end of a first stop valve J1, one end of a second stop valve J2 and an inlet of a heating circulating pump 7, an outlet end of the heating circulating pump 7 is connected with a secondary side inlet of the unit heating heat exchanger 9, two ends of the heating circulating pump 7 are respectively provided with a soft joint reducer pipe assembly D, the other end of the first stop valve J1 and the other end of the second stop valve J2 are respectively connected with an inlet and an outlet of a vacuum, and the inlet of the safety valve SV is connected with a heating water return inlet 5 through a fifth ball valve V5. And the secondary side outlet of the unit heating heat exchanger 9 is connected with a heating water supply outlet 4 through a fourth ball valve V4. The inlet of the safety valve SV is led to a drainage ditch drain outlet 10 through a first electromagnetic valve E1. The unit heating heat exchanger 9 is a heating plate type heat exchanger.
The invention provides a novel heating system mode for heating by utilizing the return water of a cogeneration heat supply network based on the application of a low-temperature heating technology of a terminal building, and the heating capacity of the pipe network can be increased without modifying the existing pipe network system, and meanwhile, the energy utilization efficiency is also improved. The heat contained in the primary backwater is used for supplying heat, and the temperature of the backwater is further reduced, so that the situations of insufficient heat source and insufficient conveying capacity of an urban heat supply network are improved, and the method has great significance for saving energy, reducing consumption and improving the utilization efficiency of energy.
It is pointed out here that the above description is helpful for the person skilled in the art to understand the invention, but does not limit the scope of protection of the invention. Any such equivalents, modifications and/or omissions as may be made without departing from the spirit and scope of the invention may be resorted to.
Claims (8)
1. The utility model provides an utilize novel heating system of cogeneration heat supply network return water heating, includes the unit heating heat exchanger among the heating hot water system, its characterized in that, unit heating heat exchanger once inclines that the import first-pass connects a heat supply network return water input port through a return water force (forcing) pump, and the second-pass connects a heat supply network water supply input port through a heat supply network water supply flow limiter, unit heating heat exchanger once inclines that the export connects a heat supply network return water delivery outlet through the one-way heat metering device of second.
2. The novel heating system for heating by utilizing the return water of the cogeneration heat-supply network according to claim 1, it is characterized in that the outlet end of the primary water return pressurizing pump is connected with the inlet of the primary side of the unit heating heat exchanger through a left soft joint reducer pipe component, the inlet end of the primary water return pressurizing pump is respectively connected with one end of a tenth ball valve and the outlet of the first check valve through a right flexible joint reducer pipe assembly, the inlet of the first check valve is connected with the return water inlet of the primary heat supply network through an eighth ball valve, the other end of the tenth ball valve is respectively connected with one end of an eleventh ball valve and one end of an electric regulating valve, the other end of the electric regulating valve is connected with the primary heat supply network water supply flow limiter through a ninth ball valve, the other end of the eleventh ball valve is connected with an inlet at the primary side of the unit heating heat exchanger through a second check valve.
3. The novel heating system utilizing cogeneration heat-supply network return water heating as claimed in claim 2, wherein the primary heat-supply network supply water flow limiter is connected with the primary heat-supply network supply water inlet sequentially through the first one-way heat metering device, the second Y-shaped dirt separator and the third ball valve.
4. The novel heating system using cogeneration heat-network return water heating of claim 2, wherein the eighth ball valve is connected to the primary heat-network return water input port sequentially through the first Y-shaped dirt separator and the second ball valve.
5. The novel heating system utilizing return water heating of a cogeneration heat supply network according to claim 1, wherein the second one-way heat metering device is connected with one end of a first ball valve and one end of a sixth ball valve respectively through a seventh ball valve, the other end of the first ball valve is connected with the return water outlet of the primary heat supply network, the other end of the sixth ball valve is connected with the inlet of a safety valve and the inlet of a third Y-shaped dirt separator respectively after being connected with a second solenoid valve and a secondary side water supplementing constant pressure flowmeter for heating in sequence, the outlet of the third Y-shaped dirt separator is connected with one end of a first stop valve, one end of a second stop valve and the inlet of a heating circulating pump respectively, the outlet of the heating circulating pump is connected with the secondary side inlet of a unit heating heat exchanger, both ends of the heating circulating pump are provided with flexible joint reducer pipe assemblies, and the other end of the first stop valve and the other end of the second stop valve are connected with the inlet and the outlet of a And the inlet of the safety valve is connected with a heating water return input port through a fifth ball valve.
6. The novel heating system for heating by using the return water of the cogeneration heat network as claimed in claim 1, wherein the outlet of the secondary side of the unit heating heat exchanger is connected with a heating water supply outlet through a fourth ball valve.
7. The novel heating system utilizing a cogeneration heat network for return water heating according to claim 5, wherein the inlet of the safety valve is connected to the drainage outlet of the drainage ditch through a first electromagnetic valve.
8. The novel heating system for heating by using the return water of the cogeneration heat network as claimed in claim 1, wherein the unit heating heat exchanger is a heating plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011138876.4A CN112268310A (en) | 2020-10-22 | 2020-10-22 | Novel heating system for heating by utilizing return water of cogeneration heat supply network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011138876.4A CN112268310A (en) | 2020-10-22 | 2020-10-22 | Novel heating system for heating by utilizing return water of cogeneration heat supply network |
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| CN112268310A true CN112268310A (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011138876.4A Pending CN112268310A (en) | 2020-10-22 | 2020-10-22 | Novel heating system for heating by utilizing return water of cogeneration heat supply network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115682076A (en) * | 2022-10-19 | 2023-02-03 | 河北工业大学 | Distributed renewable bidirectional energy system combined with three-pipe heating system |
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2020
- 2020-10-22 CN CN202011138876.4A patent/CN112268310A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115682076A (en) * | 2022-10-19 | 2023-02-03 | 河北工业大学 | Distributed renewable bidirectional energy system combined with three-pipe heating system |
| CN115682076B (en) * | 2022-10-19 | 2024-03-22 | 河北工业大学 | Distributed renewable bidirectional energy system combined with three-pipe heating system |
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