CN210153758U - Electrical heating heat-storage steam supply system - Google Patents
Electrical heating heat-storage steam supply system Download PDFInfo
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- CN210153758U CN210153758U CN201920577782.3U CN201920577782U CN210153758U CN 210153758 U CN210153758 U CN 210153758U CN 201920577782 U CN201920577782 U CN 201920577782U CN 210153758 U CN210153758 U CN 210153758U
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Abstract
The utility model discloses an electrical heating heat-retaining steam supply system, including electrical heating heat-retaining device, softened water tank and attemperator, electrical heating heat-retaining device includes storage tank, electrical heating device and heat transfer device, be provided with the heat-retaining medium in the storage tank and be used for the heating the heat-retaining medium electrical heating device, the last steam extraction mouth that is equipped with of heat transfer device is used for following extract partial steam-water mixture among the heat transfer device, attemperator's top is equipped with atomizing device, atomizing device with the steam extraction mouth is linked together through the steam extraction pipeline. The utility model provides an electrical heating heat-retaining supplies steam system utilizes low price low ebb electricity, and energy utilization efficiency is high, can effectively reduce the running cost who supplies steam.
Description
Technical Field
The utility model relates to an electric heat-retaining field, in particular to electric heating heat-retaining steam supply system.
Background
In production and life, various occasions requiring steam, such as food industry, need to use steam to heat food, and wood industry needs to use steam to dry wood. The main energy source for small-scale steam demand is electricity, i.e. water is heated by an electric steam generator to raise the temperature of the water, and then steam is generated. At present, the mode of directly using electric heating to generate steam has the advantage of fast steam generation, but at present, because the electricity price ratio is higher, the running cost of the device for directly using electric heating to generate steam is much higher than that of the device for heating water to generate steam by burning fuel oil or gas.
In view of the above, it is desirable to provide an electric heating heat-storage steam-supply system using low-price off-peak electricity, so as to effectively reduce the operation cost of steam supply.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an electric heating heat-storage steam supply system which utilizes low-price off-peak electricity and effectively reduces the steam supply cost.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
an electrically heated heat storage and steam supply system comprising:
the electric heating heat storage device comprises a storage tank, an electric heating device and a heat exchange device, wherein a heat storage medium and the electric heating device for heating the heat storage medium are arranged in the storage tank, the heat exchange device is arranged on the outer surface of the storage tank and exchanges heat with the heat storage medium to generate steam, and the heat exchange device is provided with a steam extraction port for extracting part of steam-water mixture from the heat exchange device;
the softened water tank is connected to one end of the water inlet of the heat exchange device through a softened water pipeline and is used for storing softened water;
the temperature reducing device is connected to one side of the first steam outlet of the heat exchange device, an atomizing device is arranged at the top of the temperature reducing device, the atomizing device is communicated with the steam extraction port through a steam extraction pipeline, and steam-water mixture atomized by the atomizing device is mixed with steam in the temperature reducing device.
The electric heating heat storage steam supply system further comprises a steam-water separation device, and the steam-water separation device is connected to one end of the second steam outlet of the temperature reduction device and used for separating moisture in steam.
The electric heating heat storage steam supply system further comprises a pressure regulating device, and the heat exchange device, the temperature reducing device, the steam-water separation device and the pressure regulating device are sequentially communicated through a steam pipeline.
Above-mentioned electrical heating heat-retaining supplies steam system, wherein, last pressure transmitter and the confession steam pipeline of being equipped with of regulator, be equipped with first flow control valve on the confession steam pipeline, regulator passes through first flow control valve control the flow of steam and then the regulation in the confession steam pipeline the pressure of steam in the confession steam pipeline.
The electric heating heat storage steam supply system is characterized in that a first drain outlet is formed in the lower portion of the steam-water separation device, a second drain outlet is formed in the lower portion of the pressure regulating device, and the first drain outlet and the second drain outlet are communicated with the softened water tank through drain pipelines so as to heat softened water of the softened water tank by utilizing drain waste heat.
Above-mentioned electrical heating heat-retaining supplies steam system, wherein, be equipped with the steam trap on the drain line for filter is hydrophobic and prevent that steam from getting into soften the water tank.
The electrical heating heat storage steam supply system is characterized in that the softened water pipeline is provided with a second flow regulating valve and a delivery pump, and the second flow regulating valve and the delivery pump are used for controlling the softened water pipeline to supply softened water to the heat exchange device.
In the above electric heating heat-storage steam supply system, a third flow regulating valve is arranged on the steam extraction pipeline, a temperature transmitter is arranged on the steam pipeline, and the temperature reduction device controls the flow of the steam-water mixture in the steam extraction pipeline through the third flow regulating valve so as to regulate the temperature of the steam in the temperature reduction device.
The utility model has the advantages that:
the utility model provides an electrical heating heat-retaining supplies steam system utilizes low price low ebb electricity, and energy utilization efficiency is high, can effectively reduce the running cost who supplies steam. Through preliminary calculation, taking the sea as an example, the current low-valley low-price electricity price is about 0.335 yuan/kwh, the peak electricity price is about 1.127 yuan/kwh, and assuming that the electricity consumption per ton of steam is about 0.7MWh, 554.4 yuan is saved per ton of steam after the technology is used.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the device according to the invention and, together with the detailed description, serve to explain the advantages and principles of the device according to the invention. In the drawings:
fig. 1 is a system structure diagram of an electric heating heat-storage steam supply system according to an embodiment of the present invention;
description of the reference numerals
1-an electrically heated heat storage device;
11-a storage tank; 12-an electric heating device; 13-heat exchange means;
131-an extraction opening; 132-a first vapor outlet; 133-water inlet; 14-a heat storage medium;
2-softening the water tank;
21-softened water;
3-a temperature reduction device;
31-an atomizing device; 32-a second steam outlet;
4-a steam-water separation device;
41-a first hydrophobic outlet;
5-a pressure regulating device;
51-a pressure transmitter; 52-steam supply line; 521-a first flow regulating valve; 53-a second hydrophobic outlet;
6-softened water pipeline;
61-second flow regulating valve; 62-a delivery pump;
7-a steam extraction pipeline;
71-third flow regulating valve;
8-a steam line;
81-temperature transmitter;
9-a drainage pipeline;
91-steam trap.
Detailed Description
The following detailed description of the embodiments of the present invention refers to the accompanying drawings. However, the present invention is not limited to the embodiments described below. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other, and the technical idea of the present invention may be combined with other known techniques or other techniques similar to those known techniques.
First embodiment
Fig. 1 is a system structural diagram of an electric heating heat-storage steam supply system according to the present embodiment; as shown in fig. 1, the present embodiment provides an electrically heated heat-storage steam-supply system, including:
electric heating heat-retaining device 1, including storage tank 11, electric heating device 12 and heat transfer device 13, be provided with heat-retaining medium 14 in the storage tank 11 and be used for heating heat-retaining medium 14's electric heating device 12, electric heating device 12 utilizes the low price electricity of valley to heat-retaining medium 14 at the electric wire netting valley electricity stage, heat transfer device 13 overall arrangement is at storage tank 11 surface, carry out heat exchange with heat-retaining medium 14 and produce steam, heat transfer device 13 can be the heliciform, the overall arrangement is at storage tank 11 surface, do not with heat-retaining medium 14 direct contact, thereby prevent heat-retaining medium 14 to the corruption of heat transfer device 13, be equipped with extraction steam vent 131 on heat transfer device 13, be used for extracting partial steam-water mixture from heat transfer device 13.
Softened water tank 2 is connected in heat transfer device 13's water inlet 133 one end through softened water pipeline 6 for store softened water, softened water before getting into softened water tank 2, impurity and heavy metal ion in the aquatic can have been detached through softening filter equipment, in order to prevent the scale deposit and block up the pipeline, softened water filter equipment can be for one of active carbon, milipore filter, fibre filter core, reverse osmosis membrane, or the combination of several kinds.
The temperature reducing device 3 is connected to one side of the first steam outlet 132 of the heat exchange device 13, the atomizing device 31 is arranged at the top of the temperature reducing device 3, the atomizing device 31 can be a nozzle or a spray header, the atomizing device 31 is communicated with the steam outlet 131 through the steam extraction pipeline 7, the temperature of a steam-water mixture atomized by the atomizing device 31 is low, and the steam-water mixture is mixed with steam in the temperature reducing device 3, so that the steam is reduced.
Specifically, the heat storage medium 14 is molten salt, heat transfer oil, or water. Further, as a preferred embodiment, the electrical heating heat storage steam supply system further includes a steam-water separation device 4, the steam-water separation device 4 is connected to one end of the second steam outlet 32 of the temperature reduction device 3, and moisture in the steam can be separated by using the difference between the steam and the water density.
Further, as a preferred embodiment, the electric heating heat storage steam supply system further comprises a pressure regulating device 5, and the heat exchanging device 13, the temperature reducing device 3, the steam-water separating device 4 and the pressure regulating device 5 are sequentially communicated through a steam pipeline 8 to form a steam flow path.
Further, as a preferred embodiment, the pressure regulating device 5 is provided with a pressure transmitter 51 and a steam supply pipeline 52, the steam supply pipeline 52 is provided with a first flow regulating valve 521, and the pressure regulating device 5 controls the flow of the steam in the steam supply pipeline 52 through the first flow regulating valve 521 to further regulate the pressure of the steam in the steam supply pipeline 52, so as to form steam with stable pressure and supply the steam to a hot user through the steam supply pipeline 52.
Further, as a preferred embodiment, the lower portion of the steam-water separation device 4 is provided with a first drain outlet 41, the lower portion of the pressure regulating device 5 is provided with a second drain outlet 53, and both the first drain outlet 41 and the second drain outlet 53 are communicated with the softened water tank 2 through a drain pipeline 9.
Further, as a preferred embodiment, the drain line 9 is provided with a drain 91 for filtering the drain water and preventing the steam from entering the softened water tank 2.
Further, as a preferred embodiment, the softened water pipe 6 is provided with a second flow rate regulating valve 61 and a delivery pump 62 for controlling the softened water pipe 6 to supply the softened water to the heat exchanging device 13.
Further, as a preferred embodiment, the steam extraction pipe 7 is provided with a third flow control valve 71, the steam pipe 8 is provided with a temperature transmitter 81, and the temperature reduction device 3 controls the flow of the steam-water mixture in the steam extraction pipe 7 through the third flow control valve 71 so as to adjust the temperature of the steam in the temperature reduction device 3.
In this embodiment, the working process of the electrical heating heat storage steam supply system is as follows:
when the power grid is in a valley electricity period, the electric heating device 12 heats the heat storage medium 14 in the storage tank 11 using valley low-price electricity, and the temperature of the heat storage medium 14 increases, thereby storing heat in the heat storage medium 14.
When a user needs to use steam, the energy stored in the heat storage medium 14 is transferred to softened water to generate steam, and the specific flow is that the softened water flowing out of the softened water tank 2 is pumped into the heat exchange device 13 through the delivery pump 62 and the second flow regulating valve 61, the softened water absorbs the heat of the heat storage medium 14 to become superheated steam, and the superheated steam flows into the temperature reduction device 3. Meanwhile, the lower-temperature steam-water mixture extracted from the heat exchange device 13 passes through the third flow regulating valve 71, is atomized and enters the temperature reduction device 3 to be mixed with the superheated steam. By controlling the opening degree of the third flow rate adjustment valve 71, the temperature of the steam in the temperature reduction device 3 is made to reach a set value, it is easy to understand that the larger the opening degree of the third flow rate adjustment valve 71 is, the more the steam-water mixture with lower temperature enters the temperature reduction device 3, the more the temperature reduction effect is obvious, and as the temperature of the heat storage medium 14 in the storage tank 11 is continuously reduced, the temperature of the superheated steam is also gradually reduced, at this time, the opening degree of the third flow rate adjustment valve 71 can be made to be continuously reduced. The steam after temperature reduction flows through the steam-water separation device 4, and the drained water in the steam is filtered by the steam trap 91 and flows into the softening water tank 2 through the drain pipeline 9. After the steam flows into the pressure regulating device 5, the opening degree of the first flow regulating valve 521 is regulated according to the reading of the pressure transmitter 51, so that the pressure of the steam reaches a set value, and the steam flows through the first flow regulating valve 521 and is supplied to a hot user.
The terms "first" and "second" as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, unless otherwise specified. Similarly, modifiers similar to "about", "approximately" or "approximately" that occur before a numerical term herein typically include the same number, and their specific meaning should be read in conjunction with the context. Similarly, unless a specific number of a claim recitation is intended to cover both the singular and the plural, and also that claim may include both the singular and the plural.
In the description of the specific embodiments above, the use of the directional terms "upper", "lower", "left", "right", "top", "bottom", "vertical", "transverse", and "lateral", etc., are for convenience of description only and should not be considered limiting.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (8)
1. An electrically heated heat-storage steam-supply system, comprising:
the electric heating heat storage device comprises a storage tank, an electric heating device and a heat exchange device, wherein a heat storage medium and the electric heating device for heating the heat storage medium are arranged in the storage tank, the heat exchange device is arranged on the outer surface of the storage tank and exchanges heat with the heat storage medium to generate steam, and the heat exchange device is provided with a steam extraction port for extracting part of steam-water mixture from the heat exchange device;
the softened water tank is connected to one end of the water inlet of the heat exchange device through a softened water pipeline and is used for storing softened water;
the temperature reducing device is connected to one side of the first steam outlet of the heat exchange device, an atomizing device is arranged at the top of the temperature reducing device, the atomizing device is communicated with the steam extraction port through a steam extraction pipeline, and steam-water mixture atomized by the atomizing device is mixed with steam in the temperature reducing device and used for cooling the steam.
2. The electrical heating heat-storage steam supply system according to claim 1, further comprising a steam-water separation device connected to one end of the second steam outlet of the temperature reduction device for separating moisture in the steam.
3. The electrical heating heat-storage steam supply system according to claim 2, further comprising a pressure regulating device, wherein the heat exchanging device, the temperature reducing device, the steam-water separating device and the pressure regulating device are sequentially communicated through a steam pipeline.
4. The system of claim 3, wherein the pressure regulating device comprises a pressure transmitter and a steam supply pipeline, the steam supply pipeline comprises a first flow regulating valve, and the pressure regulating device controls the flow of steam in the steam supply pipeline through the first flow regulating valve to regulate the pressure of the steam in the steam supply pipeline.
5. The electrical heating heat-storage steam supply system according to claim 4, wherein a first drain outlet is arranged at the lower part of the steam-water separation device, a second drain outlet is arranged at the lower part of the pressure regulating device, and the first drain outlet and the second drain outlet are communicated with the softened water tank through drain pipelines so as to heat softened water in the softened water tank by using drain waste heat.
6. The system of claim 5, wherein a trap is disposed on the drain line for filtering water and preventing steam from entering the softened water tank.
7. An electrically heated heat-storage steam-supply system according to any one of claims 1 to 6, wherein the softened water pipeline is provided with a second flow regulating valve and a delivery pump for controlling the softened water pipeline to supply softened water to the heat exchange device.
8. The system of claim 3, wherein a third flow regulating valve is disposed on the steam extraction pipeline, a temperature transmitter is disposed on the steam pipeline, and the temperature reduction device controls the flow of the steam-water mixture in the steam extraction pipeline through the third flow regulating valve to further adjust the temperature of the steam in the temperature reduction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577782.3U CN210153758U (en) | 2019-04-25 | 2019-04-25 | Electrical heating heat-storage steam supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577782.3U CN210153758U (en) | 2019-04-25 | 2019-04-25 | Electrical heating heat-storage steam supply system |
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| Publication Number | Publication Date |
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| CN210153758U true CN210153758U (en) | 2020-03-17 |
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| CN201920577782.3U Active CN210153758U (en) | 2019-04-25 | 2019-04-25 | Electrical heating heat-storage steam supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992853A (en) * | 2022-06-09 | 2022-09-02 | 上海电气集团股份有限公司 | Heat storage device and heat storage and steam supply system comprising same |
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2019
- 2019-04-25 CN CN201920577782.3U patent/CN210153758U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992853A (en) * | 2022-06-09 | 2022-09-02 | 上海电气集团股份有限公司 | Heat storage device and heat storage and steam supply system comprising same |
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