CN215766106U

CN215766106U - Heating and damp-proof device for particulate matter storage box

Info

Publication number: CN215766106U
Application number: CN202121438423.3U
Authority: CN
Inventors: 侯安博; 杜占生; 李海阳; 刘晓峰
Original assignee: Shangan Power Plant of Huaneng Power International Inc
Current assignee: Shangan Power Plant of Huaneng Power International Inc
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-02-08
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to a heating damp-proof device of a particulate matter storage box, which comprises the particulate matter storage box, a boiler drain box and a low-temperature economizer, wherein the lower part of the particulate matter storage box is conical; the device also comprises a heating coil, a first temperature sensor, a second temperature sensor and a controller, wherein the heating coil is arranged on the outer wall of the conical part of the particulate matter storage box; the heating coil is provided with an air inlet end and an air outlet end; the air outlet end of the heating coil is respectively communicated with the boiler drain tank and the low-temperature economizer, and the air inlet end of the heating coil is respectively communicated with the main steam auxiliary pipe of the unit and a standby air source; the air inlet end of the heating coil is communicated with the electric regulating valve; the controller is respectively connected with the first temperature sensor, the second temperature sensor and the electric control valve through signals. The utility model has the beneficial effects that: the controller receives temperature signals of the first temperature sensor and the second temperature sensor, and turns off the valve of the electric control valve if the temperature is too high, and turns on the valve of the electric control valve if the temperature is too low.

Description

Heating and damp-proof device for particulate matter storage box

Technical Field

The utility model relates to the field of heating, in particular to a heating damp-proof device for a particulate matter storage box.

Background

The coagulant aid dosing device matched with the wet desulphurization wastewater system is provided with a particle storage box and is used for storing a particle coagulant aid, because a feed opening is directly connected with a medicine dissolving box, water vapor in the box is attached to a transmission shaft of a feeding machine, and because coagulant aid particles are macromolecular organic matters, the viscosity is enhanced after being damped, so that the feeding of the feeding machine is not smooth, and the normal operation of a feeding and dosing system is influenced. The existing damp-proof device is a fluorescent lamp, is dehumidified by heating of a bulb and prevents blockage, and has poor integral effect due to limited heating amount and uneven heating, thereby influencing the normal operation of a wastewater system. Under the guidance of the work of improving quality and increasing efficiency and saving energy and reducing consumption, the energy-saving potential in the production process is fully excavated, the heat energy resources of a thermal power plant are abundant, and the technical requirement of damp-proof heating of the coagulant aid storage tank can be completely met by replacing electric heating with steam heating.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a heating and moisture-proof device for a particulate matter storage box, which can solve the problem of uneven heating.

In order to solve the problems, the utility model adopts the following technical scheme:

the heating damp-proof device of the particle storage box comprises the particle storage box, a boiler drain box, a low-temperature economizer, a unit auxiliary steam main pipe and a standby air source, wherein the lower part of the particle storage box is conical; the heating coil is arranged on the outer wall of the conical part of the particulate matter storage box; the heating coil is provided with an air inlet end and an air outlet end; the air outlet end of the heating coil is respectively communicated with the boiler drain tank and the low-temperature economizer; and the air inlet end of the heating coil is respectively communicated with the main steam auxiliary pipe of the unit and a standby air source.

Further, the device also comprises a first valve, a second valve and a third valve; the air outlet end of the heating coil is communicated with the first valve; the first valve is communicated with the second valve and the third valve respectively; the second valve is communicated with the low-temperature economizer; the third valve is communicated with the boiler drain tank.

Further, the device also comprises a fourth valve, a fifth valve, a sixth valve, an electric regulating valve and a seventh valve; the air inlet end of the heating coil is communicated with the seventh valve; the seventh valve is communicated with the electric regulating valve; the electric regulating valve is communicated with the sixth valve; the sixth valve is respectively communicated with the fourth valve and the fifth valve; the fourth valve is communicated with the main steam pipe of the unit; and the fifth valve is communicated with the standby air source.

Furthermore, an air outlet valve is arranged between the first valve and the air outlet end of the heating coil.

Furthermore, a heat insulation layer is arranged outside the heating coil on the particulate matter storage box.

Further, the device also comprises a controller, a first temperature sensor and a second temperature sensor; the first temperature sensor is arranged behind the first valve; the second temperature sensor is arranged on the outer wall of the conical part of the particulate matter storage box; the controller is respectively in signal connection with the first temperature sensor, the second temperature sensor and the electric control valve.

The utility model has the beneficial effects that:

1. the electric control valve is respectively communicated with the sixth valve and the seventh valve; the electric regulating valve is easy to break down, and the sixth valve and the seventh valve are arranged, so that the electric regulating valve is convenient to overhaul when breaking down;

2. the temperature control device comprises a controller, an electric regulating valve, a first temperature sensor and a second temperature sensor; the controller receives temperature signals of the first temperature sensor and the second temperature sensor, and prevents the temperature from being too low to influence the drying of the materials in the particle storage box; if the temperature is too high, the valve of the electric control valve is closed, and if the temperature is too low, the valve of the electric control valve is opened;

3. through the arranged air outlet valve, if the boiler drain box and the low-temperature economizer do not need the backflow steam, the backflow steam is discharged through the air outlet valve;

4. the second valve is communicated with the low-temperature economizer; the third valve is communicated with the boiler drain tank; when the low-temperature economizer needs the reflowed steam, the third valve is closed, and the second valve is opened; when the boiler drain tank needs the reflowed steam, the third valve is opened, and the second valve is closed;

5. the fourth valve is communicated with the main steam pipe of the unit; the fifth valve is communicated with the standby air source; when the steam in the auxiliary steam main pipe of the unit cannot meet the requirement, closing the fourth valve; and opening the fifth valve and adopting a standby air source.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a control schematic diagram of the present invention.

The reference numbers in the figures illustrate:

1-particle storage tank, 2-heating coil, 3-second temperature sensor, 4-gas outlet valve, 5-first valve, 6-first temperature sensor, 7-second valve, 8-low-temperature economizer, 9-boiler drain tank, 10-third valve, 11-unit auxiliary steam main pipe, 12-fourth valve, 13-standby gas source, 14-fifth valve, 15-sixth valve, 16-electric regulating valve and 17-seventh valve.

Detailed Description

The drawings in the embodiments of the utility model will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; the described embodiments are only some of the embodiments of the utility model; but not all embodiments, are based on the embodiments of the utility model; all other embodiments obtained by a person skilled in the art without making any creative effort; all fall within the scope of protection of the present invention.

As shown in fig. 1:

the heating damp-proof device of the particle storage box comprises the particle storage box 1, a boiler drain box 9, a low-temperature economizer 8, a main steam pipe 11 of a unit and a standby air source 13, wherein the lower part of the particle storage box 1 is conical; the particle storage box also comprises a heating coil 2 arranged on the outer wall of the conical part of the particle storage box 1; the heating coil 2 is provided with an air inlet end and an air outlet end; the air outlet end of the heating coil 2 is respectively communicated with the boiler drain tank 9 and the low-temperature economizer 8; and the air inlet end of the heating coil 2 is respectively communicated with the main steam pipe 11 of the unit and the standby air source 13.

The device also comprises a first valve 5, a second valve 7 and a third valve 10; the air outlet end of the heating coil 2 is communicated with the first valve 5; the first valve 5 is respectively communicated with the second valve 7 and the third valve 10; the second valve 7 is communicated with a low-temperature economizer 8; the third valve 10 is in communication with the boiler drain tank 9.

The device also comprises a fourth valve 12, a fifth valve 14, a sixth valve 15, an electric regulating valve 16 and a seventh valve 17; the air inlet end of the heating coil 2 is communicated with the seventh valve 17; the seventh valve 17 is communicated with the electric regulating valve 16; the electric regulating valve 16 is communicated with the sixth valve 15; the sixth valve 15 is respectively communicated with the fourth valve 12 and the fifth valve 14; the fourth valve 12 is communicated with the main steam pipe 11 of the unit; the fifth valve 14 is in communication with the back-up gas source 13.

An air outlet valve 4 is arranged between the first valve 5 and the air outlet end of the heating coil 2.

And a heat preservation layer is arranged outside the heating coil 2 on the particulate matter storage box 1.

The device also comprises a controller, a first temperature sensor 6 and a second temperature sensor 3; the first temperature sensor 6 is arranged behind the first valve 5; the second temperature sensor 3 is arranged on the outer wall of the conical part of the particulate matter storage box 1; the controller is in signal connection with the first temperature sensor 6, the second temperature sensor 3 and the electric control valve 16 respectively.

The working principle of the utility model is that,

the system is installed, the temperature threshold value of the controller is set, and when the temperatures measured by the first temperature sensor 6 and the second temperature sensor 3 are lower than the threshold value, the controller sends an instruction to the electric regulating valve 16 to enlarge the electric regulating valve 16; when the temperatures measured by the first temperature sensor 6 and the second temperature sensor 3 are higher than the threshold value, the valve of the electric control valve 16 is closed to a small extent, so that the temperatures are appropriate.

The above; but are merely preferred embodiments of the utility model; the scope of the utility model is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the utility model are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The heating and damp-proof device of the particulate matter storage box comprises the particulate matter storage box (1), a boiler drain box (9), a low-temperature economizer (8), a main steam pipe (11) of a unit and a standby air source (13), wherein the lower part of the particulate matter storage box (1) is conical; the particle storage box is characterized by further comprising a heating coil (2) arranged on the outer wall of the conical part of the particle storage box (1); the heating coil (2) is provided with an air inlet end and an air outlet end; the air outlet end of the heating coil (2) is respectively communicated with the boiler drain tank (9) and the low-temperature economizer (8); and the air inlet end of the heating coil (2) is respectively communicated with the main steam pipe (11) of the unit and a standby air source (13).

2. The heated moisture barrier apparatus of claim 1, further comprising: the device also comprises a first valve (5), a second valve (7) and a third valve (10); the air outlet end of the heating coil (2) is communicated with the first valve (5); the first valve (5) is respectively communicated with the second valve (7) and the third valve (10); the second valve (7) is communicated with the low-temperature economizer (8); the third valve (10) is communicated with the boiler drain tank (9).

3. The heated moisture barrier apparatus of claim 2, further comprising: the device also comprises a fourth valve (12), a fifth valve (14), a sixth valve (15), an electric control valve (16) and a seventh valve (17); the air inlet end of the heating coil (2) is communicated with the seventh valve (17); the seventh valve (17) is communicated with the electric regulating valve (16); the electric regulating valve (16) is communicated with the sixth valve (15); the sixth valve (15) is respectively communicated with the fourth valve (12) and the fifth valve (14); the fourth valve (12) is communicated with the main steam pipe (11) of the unit; the fifth valve (14) is communicated with the standby air source (13).

4. The heated moisture barrier apparatus of claim 3, further comprising: an air outlet valve (4) is arranged between the first valve (5) and the air outlet end of the heating coil (2).

5. The heated moisture barrier apparatus of claim 4, further comprising: and a heat-insulating layer is arranged outside the heating coil (2).

6. The heated moisture barrier apparatus of claim 5, further comprising: the device also comprises a controller, a first temperature sensor (6) and a second temperature sensor (3); the first temperature sensor (6) is arranged behind the first valve (5); the second temperature sensor (3) is arranged on the outer wall of the conical part of the particulate matter storage box (1); the controller is respectively in signal connection with the first temperature sensor (6), the second temperature sensor (3) and the electric regulating valve (16).