CN210035662U

CN210035662U - Heating system with heat energy storage device at user end of heat supply network

Info

Publication number: CN210035662U
Application number: CN201920389773.1U
Authority: CN
Inventors: 朱建新; 崔英俊
Original assignee: SHENYANG SIGNJAMMER Ltd
Current assignee: SHENYANG SIGNJAMMER Ltd
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-02-07
Anticipated expiration: 2029-03-26

Abstract

The utility model discloses a heating system of heat supply network user end area heat energy storage device, including big heat source station, heating power pipe network, heat transfer medium, valve group directly supplies the formula user, and its technical essential is: the large heat source station is led out and connected into the same heat pipe network of the direct supply type user, and is also connected with a solid energy storage body with an external heat insulation layer, metal pipelines communicated with a heating pipe network are also distributed in the solid energy storage body, and a heat storage type user pipe network with an output end communicated with a heat storage type user input end is also arranged in the solid energy storage body; the heating power pipe network of the large heat source station forms a heat release loop with a solid energy storage body and a direct supply type user which are respectively communicated with the heat storage type user through a valve group. The utility model discloses positive effect is: on the same heat pipe network, the compatibility, the transmission capability and the utilization rate of the pipe network of the solid energy storage body heating network are increased, so that users with unmatched temperature, pressure and heat supply stability indexes of the heat pipe network can obtain heat supply services of a large heat source station.

Description

Heating system with heat energy storage device at user end of heat supply network

Technical Field

The utility model relates to a heat supply technology field, in particular to set up the heating system who takes heat energy storage device at heat supply network user end between heating power pipe network and heat consumer realizes having the ability of inserting different temperatures, pressure demand user in same heating power circulating pipe network.

Background

In recent years, the heat energy extracted by thermal power plants with installed capacity of more than 30 ten thousand kilowatts is commonly adopted by domestic provinces or distributed coal-fired small heat source stations are replaced by large heat source stations with heat supply capacity of more than 100 tons to supply heat for users, and the measure has obvious effect on improving the environment and reducing the air pollution. Because a large heat source station shared by multiple users needs to supply heat to users with different temperatures, different pressures and thermal stability requirements higher than the output stability of a common heat pipe network, multiple heat pipe network loops are laid, for example: the heating pipe network of the heating user is idle in the non-heating season, and the heating pipe network of the industrial user is irrelevant to the season along with the change of production requirements; the output capacity of a heat pipe network laid by a large heat source station is limited by an upper limit, the heat energy demand of users connected to the heat pipe network is unbalanced, and the larger the ratio of the heat consumption peak to the heat consumption valley is, the lower the utilization rate of the heat pipe network is; some users need to realize continuous and uninterrupted heat utilization, and large heat source stations need to have equipment guarantee for continuous and uninterrupted heat supply. The problems of multiple heating pipe network loops, high idle rate, low utilization rate and high requirement on stability for heating users after the large heat source station heating mode is implemented are not solved, the space for expanding the heating users of the large heat source station is severely limited, and the heating cost is also increased.

Disclosure of Invention

The utility model aims at providing a heat supply system of heat supply network user end area heat energy storage device that existing direct-furnish formula user also has heat accumulation formula user on same heat pipe network.

The utility model adopts the technical proposal that: the utility model provides a heating system of heat supply network user end area heat energy storage device, includes big heat source station, heating power pipe network, heat transfer medium, valve group, directly supplies formula user, its characterized in that: the large heat source station is led out and connected into the same heat pipe network of the direct supply type user, and is also connected with a solid energy storage body with an external heat insulation layer, metal pipelines communicated with a heating pipe network are also distributed in the solid energy storage body, and a heat storage type user pipe network with an output end communicated with a heat storage type user input end is also arranged in the solid energy storage body; valve sets are arranged at two ends of a metal pipeline communicated with the heating power pipe network in the solid energy storage body; the heating power pipe network of the large heat source station forms a heat release loop with a solid energy storage body and a direct supply type user which are respectively communicated with a heat storage type user through a valve group; the heat accumulating type user is connected with the solid energy storage body to form a heat supply loop.

Heating power pipe network be the pipeline of big heat source station to heat consumer output heat energy.

The valve group is a regulating valve mechanism for heat energy transmission of a heating power pipe network, the valve group is an electric or/and manual regulating valve, and the valve group is a single group or/and a plurality of groups.

The solid energy storage body of the utility model has the heat storage capacity of more than 1000kWh, the solid energy storage body is the set of prefabricated solid energy storage body units arranged in an array, and the solid energy storage body is made of solid building blocks or solid building blocks, solid powder and solid pouring materials; the thermal properties of the material are used to absorb or release thermal energy.

The solid energy storage body be the application number do: 2018111934836, respectively.

The heat transfer medium of the utility model comprises: water, saturated steam, superheated steam, heat transfer oil or air has a fluid heat carrier.

The utility model discloses need do the technological improvement to current big heat source station heating system, the user that will be unsuitable direct access heating power pipe network a bit, put into heat energy storage device between heating power pipe network and user, make to be connected with direct supply formula user on the same heating power pipe network also have the heat accumulation formula user. The output of the direct supply type user heating power pipe network keeps synchronous supply and demand relation with the user demand; the output of the heat accumulating type user heating power pipe network and the user requirement are not necessarily kept synchronous. The heat energy of the heating power pipe network of the large heat source station is firstly input into the heat energy storage device, and the heat energy is reduced in temperature and pressure by the heat energy storage device to provide a heat source for users. The heat storage device can improve the compatibility of multiple users of the same heat pipe network and improve the transmission capacity and the utilization rate of the heat pipe network, so that when sudden (within 24 hours) short-time heat supply interruption of a large heat source station occurs, heat storage users can not be affected in heat supply quality, and heat storage devices distributed on the heat pipe network can feed heat energy reversely to the heat pipe network to prevent the pipe network from freezing.

The utility model has the advantages and positive effects that: the heat supply system with the heat energy storage device at the user end is arranged on the same heat pipe network, and the heat supply system is connected to the heat energy storage device to increase the compatibility and the transmission capability of the heat pipe network and the utilization rate of the heat pipe network, so that users with unmatched temperature, pressure and heat supply stability indexes of the heat pipe network can obtain heat supply services of a large heat source station.

Drawings

The invention is further described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of the structure of the heating system of the present invention.

The sequence numbers in the figures illustrate: the system comprises a large heat source station 1, a heating power pipe network 2, a solid energy storage body 3, a heat accumulating type user 4, a valve group 5, a direct supply type user 6, a heat transfer medium 7 and a heat accumulating type user pipe network 8.

The present invention will be described in further detail with reference to the accompanying drawings by way of examples, but the following examples are only illustrative of the present invention and do not represent the scope of the present invention defined by the claims.

Detailed Description

Example (b):

as shown in fig. 1, in the figure, 1 is a large heat source station which is a waste heat supply unit of a thermal power plant, 2 is a thermal pipe network which is a circulating pipeline for transmitting superheated steam with the temperature of 280 ℃ and the pressure of 1.6MPa of the thermal power plant, a solid energy storage body 3 is a casting material which is solidified in two diameters DN50 and is 150mm thick outside a 20G seamless metal pipeline, wherein the 20G seamless metal pipeline is connected to the thermal pipe network 2 and forms a loop with the thermal pipe network 2, and the other 20G seamless metal pipeline is connected to a heat accumulating type user 4 and forms a loop with the heat accumulating type user 4; the heat source required by the heat accumulating type user 4 is 140 ℃ saturated steam, 5 is a valve group, 6 the heat source required by the direct supply type user is hot water at 60-80 ℃, 7 the heat transfer medium is superheated steam, and 8 is a heat accumulating type user pipe network; a solid energy storage body 3 with an external heat insulation layer is also connected to the same heat pipe network led out from the large heat source station 1 and connected with a direct supply type user 6, metal pipelines communicated with a heat pipe network are also distributed in the solid energy storage body 3, and a heat storage type user pipe network 8 with an output end communicated with an input end of a heat storage type user 4 is also arranged in the solid energy storage body 3; valve groups 5 are also arranged at two ends of a metal pipeline communicated with the heating power pipe network in the solid energy storage body 3; the heat pipe network 2 of the large heat source station 1 is respectively communicated with a heat energy storage device of a heat accumulating type user and a direct supply type user through a valve group 5 to form a heat release loop; the heat accumulating type user is connected with the solid energy storing body 3 to form a heat supply loop. A plurality of groups of direct supply type users 6 and heat storage type users 4 are connected into the same heat distribution pipe network 2 through valve groups 5; the direct supply type user 6 directly exchanges heat with the heating power pipe network 2, and the heat storage type user 4 directly exchanges heat with the solid energy storage body 3; the present solid energy storage body 3 is the heat absorption or the exothermic operating condition, depend on the temperature relation of heat storage medium 7 in solid energy storage body 3 and the heating power pipe network 2, heating power pipe network 2 is exothermic to solid energy storage body 3 when the heat transfer medium temperature of heating power pipe network 2 output is higher than the heat storage medium temperature in the solid energy storage body 3, heating power pipe network 2 absorbs the heat energy in the solid energy storage body 3 when the heat transfer medium temperature of heating power pipe network 2 output is less than the heat storage medium temperature in the solid energy storage body 3, if the system prohibits the heat energy in the solid energy storage body 3 to release to heating power pipe network 2, can close local valve group 5. When the heat supply valley occurs in the heat supply pipe network, the heat supply system with the solid energy storage body at the user end increases the heat stored in the solid energy storage body 3 by the heat supply pipe network 2 through the control valve group 5, so that the abundant heat energy of the heat supply pipe network 2 is stored in the solid energy storage body 3 and is used as the stored heat energy of the heat storage type user 4; when the heating peak appears in the heating pipe network, the heating system with the solid energy storage body at the user end reduces the heat stored in the solid energy storage body 3 in the heating pipe network 2 through the control valve group 5, reduces the load pressure of the heating peak of the heating pipe network 2, provides more heat energy for the direct supply type users 6 and balances the output capacity of the heating pipe network 2.

Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely illustrative and that various changes or modifications may be made without departing from the spirit and scope of the invention. The scope of the present invention is limited only by the appended claims.

Claims

1. The utility model provides a heating system of heat supply network user end area heat energy storage device, includes big heat source station, heating power pipe network, heat transfer medium, valve group, directly supplies formula user, its characterized in that: the large heat source station is led out and connected into the same heat pipe network of the direct supply type user, and is also connected with a solid energy storage body with an external heat insulation layer, metal pipelines communicated with a heating pipe network are also distributed in the solid energy storage body, and a heat storage type user pipe network with an output end communicated with a heat storage type user input end is also arranged in the solid energy storage body; valve sets are arranged at two ends of a metal pipeline communicated with the heating power pipe network in the solid energy storage body; the heating power pipe network of the large heat source station forms a heat release loop with a solid energy storage body and a direct supply type user which are respectively communicated with a heat storage type user through a valve group; the heat accumulating type user is connected with the solid energy storage body to form a heat supply loop.

2. A heating system according to claim 1, characterized in that: the heat distribution pipe network refers to a pipeline for outputting heat energy to direct supply type users from a large heat source station.

3. A heating system according to claim 1, characterized in that: the valve group is an adjusting valve mechanism for heat energy transmission of a heating power pipe network, the valve group is an electric or/and manual adjusting valve, and the valve group is a single group or/and a plurality of groups.

4. A heating system according to claim 1, characterized in that: the solid energy storage body is a set of prefabricated solid energy storage body units arranged in an array.

5. A heating system according to claim 1, characterized in that: the heat transfer medium comprises: water, saturated steam, superheated steam, heat transfer oil or air has a fluid heat carrier.