CN219414731U - Automatic water supplementing device for once-through boiler - Google Patents

Abstract

The utility model discloses an automatic water supplementing device for a straight-flow boiler, which comprises a steam boiler, a mounting bottom plate, a water feeding pump, a three-way pipe and a water feeding pipe, wherein the three-way pipe comprises a first communication port, a second communication port and a third communication port, the water feeding pump is fixedly arranged on the mounting bottom plate, a water outlet of the water feeding pump is communicated and connected with the first communication port, one side of the steam boiler is communicated and connected with one end of the water feeding pipe, the other end of the water feeding pipe is communicated and connected with the second communication port, the third communication port is fixedly provided with a sealing mounting plate, an electric push rod is arranged on the sealing mounting plate, a piston head is fixedly arranged at the movable end of the electric push rod, and one side of the third communication port is communicated and connected with a pressure reducing pipe. The beneficial effects are that: the utility model is provided with the three-way pipe, the water supply pipe, the piston head and the depressurization pipe, can automatically close the communication port between the water supply pump and the three-way pipe when hot water flows back, can lead out hot water, prevents the pressure in the water supply pipe from being too high, and has higher safety.

Description

Automatic water supplementing device for once-through boiler

Technical Field

The utility model relates to the technical field of boilers, in particular to an automatic water supplementing device for a once-through boiler.

Background

The boiler is an energy conversion device, the energy input to the boiler is chemical energy and electric energy in fuel, the boiler outputs steam, high temperature water or organic heat carrier with certain heat energy, wherein the once-through boiler is a steam generating boiler which is used for generating steam by the forced flow of working medium passing through each heating surface at one time without circulation, and the boiler generally uses a water pipe and a water pump for supplying water so as to ensure that the water level in the boiler can be kept at a required height and realize continuous steam generation.

The prior art discloses the publication number: CN213810581U a steam boiler water supply device, including steam boiler and feed pump, the top surface fixed mounting of three-way pipe has temperature sensor, one side of three-way pipe is equipped with the valve, the through-hole has been seted up to one side that the three-way pipe was equipped with the valve, the inside fixed mounting of through-hole has the screw sleeve, the valve includes the threaded rod, the threaded rod activity cup joints in screw sleeve's inside, the one end fixedly connected with reel of threaded rod, the other end fixed mounting of threaded rod has the rubber buffer, the opposite side fixedly connected with feed pipe of three-way pipe. This kind of steam boiler water supply device through set up three-way pipe and valve respectively at the top surface and the side of three-way pipe, temperature sensor senses the inside temperature of three-way pipe after abnormal, can send out the alarm promptly, then rethread rotates the reel in order to prevent the inside that the hot water of backward flow enters into the feed pump, avoids causing the damage to the feed pump.

When the water pump is used, after the temperature sensor senses that the water temperature in the three-way pipe is abnormal and gives an alarm, related staff is required to arrive at the site, and the winch is manually rotated to prevent the backflow hot water from entering the water supply pump, and the water pump can not be prevented from being backflow to the water pump at the first time due to the fact that the processing staff is required to arrive at the site for manual processing, and still is easily damaged partially, in addition, the backflow of the hot water is often caused by overhigh pressure in the boiler, if the hot water is only blocked in the water pipe, the problem that the pipeline is broken or the joint is loosened is easily caused under the action of high pressure due to the fact that the pressure resistance of the water pipe is inferior to that of the boiler, so that the danger is greater.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the automatic water supplementing device for the direct-current boiler, which has the advantages of automatically closing the communication port between the water feeding pump and the three-way pipe when hot water flows back, leading out hot water, preventing the pressure in the water feeding pipe from being too high and having higher safety, thereby solving the problems in the prior art.

(II) technical scheme

In order to realize the advantages that the communication port of the water feeding pump and the three-way pipe can be automatically closed when hot water flows back, hot water can be led out, the pressure in the water feeding pipe is prevented from being too high, and the safety is higher, the utility model adopts the following specific technical scheme: the utility model provides an automatic water supply device is used to straight-flow boiler, includes steam boiler, mounting plate, feed pump, three-way pipe and feed pipe, the three-way pipe includes first intercommunication mouth, second intercommunication mouth and third intercommunication mouth, fixed mounting has the feed pump on the mounting plate, and feed pump water inlet intercommunication is connected with the drinking-water pipe to feed pump delivery port intercommunication is connected with first intercommunication mouth, steam boiler one side intercommunication is connected with feed pipe one end, and the feed pipe other end intercommunication is connected with the second intercommunication mouth, and installs the check valve on the feed pipe, the intercommunication is installed the detection tube on the feed pipe, and installs temperature sensor in the detection tube, third intercommunication mouth fixed mounting has sealed mounting plate, and installs electric putter on the sealed mounting plate to electric putter movable end fixed mounting has the piston head, install the piston ring on the piston head, third intercommunication mouth one side intercommunication is connected with the pressure reducing pipe.

Further, a water level sensor is installed in the steam boiler.

Further, the control box is fixedly arranged on the top surface of the installation bottom plate, the PLC controller is arranged in the control box, the audible and visual alarm is arranged on the top surface of the control box, and the PLC controller is electrically connected with the water feeding pump, the water level sensor, the temperature sensor, the electric push rod and the audible and visual alarm.

Further, the piston head is in the same straight line with the central axes of the first communication port and the second communication port.

Furthermore, the steam boiler is fixedly arranged in the mounting frame, and a plurality of supporting foot frames are uniformly and fixedly arranged on the bottom surface of the mounting frame.

(III) beneficial effects

Compared with the prior art, the utility model provides the automatic water supplementing device for the once-through boiler, which has the following beneficial effects:

(1) The utility model is provided with a three-way pipe, a water supply pipe, a piston head and a pressure reducing pipe, when the utility model is used, the water supply pipe pumps boiler water into the water supply pipe through a first communication port and a second communication port on the three-way pipe, at the moment, the piston head provided with a piston ring is plugged in a third communication port, the boiler water can not enter, the boiler water enters the inner cavity of the steam boiler after passing through a one-way valve arranged on the water supply pipe, a water level sensor is arranged in the steam boiler, when the water level in the steam boiler reaches a set value, the water level sensor feeds back a signal to a PLC (programmable logic controller) arranged in a control box, the PLC can control the water supply pump to automatically stop pumping water, when the water level sensor monitors that the water level in the steam boiler is too low, the PLC can control the water supply pump to automatically start to automatically supply the boiler water, and when the one-way valve fails and is damaged, the hot water in the boiler can flow back into the water supply pipe, and the hot water can pass through the detection pipe at the same time, when the temperature sensor arranged in the detection pipe detects that the water temperature is abnormal, the signal can be fed back to the PLC controller, then the PLC controller can control the electric push rod arranged on the sealing mounting plate to start at the moment, because the piston head is fixedly connected with the movable end of the electric push rod, the piston head can be pushed to the inner cavity of the first communication port by the electric push rod, the first communication port can be blocked by the piston head and the piston ring, and at the moment, the inner cavities of the second communication port and the third communication port are mutually communicated, the hot water flowing back into the three-way pipe through the water supply pipe can not enter the inner cavity of the water supply pump through the first communication port, the water supply pump is effectively protected from being damaged, and the hot water can be led out through the pressure reducing pipe arranged on the side wall of the third communication port through the communication connection after entering the third communication port, the hot water flowing back is guided into the mechanism with high pressure resistance and high heat resistance for recovery, so that the pressure in the water supply pipe can be effectively prevented from being too high, the water supply pipe is prevented from being broken or loosened due to high pressure, and the automatic water supply device for the once-through boiler is safer to use.

(2) As mentioned above, when the hot water in the steam boiler flows back through the water supply pipe, the water level sensor can detect that the water level in the steam boiler is too low, the temperature sensor can detect that the water temperature passing through the water supply pipe is too high, signals of the water level sensor and the temperature sensor are fed back to the PLC, at the moment, the PLC can control to start the audible and visual alarm arranged on the top surface of the control box, so that on one hand, workers are warned of faults and need to deal with the faults in time, on the other hand, surrounding people in unknown conditions are warned not to get close to each other, so that the water supply pipe heated by the hot water is prevented from being scalded, and the use safety of the automatic water supplementing device for the direct-current boiler is further improved.

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 needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an automatic make-up water device for a once-through boiler according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at A of FIG. 1 according to an embodiment of the present utility model;

FIG. 3 is an enlarged view at B of FIG. 1 according to an embodiment of the present utility model;

fig. 4 is a perspective view of a tee of an automatic make-up water device for a once-through boiler according to an embodiment of the present utility model.

In the figure:

1. a steam boiler; 2. a water level sensor; 3. a mounting frame; 4. a support foot rest; 5. a control box; 6. a PLC controller; 7. a mounting base plate; 8. a water feed pump; 9. a water pumping pipe; 10. a seal mounting plate; 11. an electric push rod; 12. a three-way pipe; 1201. a first communication port; 1202. a second communication port; 1203. a third communication port; 13. a water supply pipe; 14. an audible and visual alarm; 15. a one-way valve; 16. a detection tube; 17. a temperature sensor; 18. a piston head; 19. piston rings; 20. a pressure reducing tube.

Detailed Description

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

According to an embodiment of the present utility model, an automatic make-up water device for a once-through boiler is provided.

The utility model will be further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1-4, an automatic water supplementing device for a once-through boiler according to an embodiment of the utility model comprises a steam boiler 1, a mounting base plate 7, a water feeding pump 8, a three-way pipe 12 and a water feeding pipe 13, wherein the three-way pipe 12 comprises a first communication port 1201, a second communication port 1202 and a third communication port 1203, the water feeding pump 8 is fixedly installed on the mounting base plate 7, the water inlet of the water feeding pump 8 is communicated and connected with a water suction pipe 9, the water outlet of the water feeding pump 8 is communicated and connected with the first communication port 1201, one side of the steam boiler 1 is communicated and connected with one end of the water feeding pipe 13, the other end of the water feeding pipe 13 is communicated and connected with the second communication port 1202, a one-way valve 15 is installed on the water feeding pipe 13, a detection pipe 16 is installed on the water feeding pipe 13, and install temperature sensor 17 in the detection tube 16, third intercommunication mouth 1203 fixed mounting has sealed mounting plate 10, and install electric putter 11 on the sealed mounting plate 10, and electric putter 11 activity end fixed mounting has piston head 18, install piston ring 19 on the piston head 18, third intercommunication mouth 1203 one side intercommunication is connected with pressure reducing pipe 20, it can not get into water feeding pump 8 inner chamber through first intercommunication mouth 1201 to have played the hot water that makes backward flow to three-way pipe 12 through water feeding pipe 13, effectively protected water feeding pump 8 not receive the damage, and can effectively prevent that the pressure in the water feeding pipe 13 is too high, avoid water feeding pipe 13 to break or loosen because of the high pressure, thereby make automatic water feeding device for direct-flow boiler use safer.

In one embodiment, the steam boiler 1 is internally provided with a water level sensor 2, which plays a role in monitoring the water level state in the steam boiler 1 in real time.

In one embodiment, the control box 5 is fixedly arranged on the top surface of the mounting base plate 7, the PLC controller 6 is arranged in the control box 5, the audible and visual alarm 14 is arranged on the top surface of the control box 5, and the PLC controller 6 is electrically connected with the water feeding pump 8, the water level sensor 2, the temperature sensor 17, the electric push rod 11 and the audible and visual alarm 14, so that the normal operation of the control device is realized.

In one embodiment, piston head 18 is aligned with the central axes of first and second communication ports 1201, 1202, and functions to allow piston head 18 to enter first and second communication ports 1201, 1202.

In one embodiment, the steam boiler 1 is fixedly installed in the installation frame 3, and a plurality of supporting foot frames 4 are uniformly and fixedly installed on the bottom surface of the installation frame 3, so that the steam boiler 1 is fixedly installed.

Working principle: when the utility model is used, the water feeding pipe 13 pumps boiler water into the water feeding pipe 13 through the first communication port 1201 and the second communication port 1202 on the three-way pipe 12 by the water pumping pipe 9, at the moment, the piston head 18 provided with the piston ring 19 is plugged into the third communication port 1203, the boiler water cannot enter, the boiler water enters the inner cavity of the steam boiler 1 after passing through the one-way valve 15 arranged on the water feeding pipe 13, the water level sensor 2 is arranged in the steam boiler 1, when the water level in the steam boiler 1 reaches a set value, the water level sensor 2 feeds back a signal to the PLC 6 arranged in the control box 5, the PLC 6 can control the water feeding pump 8 to automatically stop pumping, when the water level sensor 2 monitors that the water level in the steam boiler 1 is too low, the PLC 6 can control the water feeding pump 8 to automatically start to automatically supply the boiler water, when the check valve 15 is damaged by faults, hot water in the boiler flows back into the water supply pipe 13, meanwhile, the hot water passes through the detection pipe 16, when the temperature sensor 17 arranged in the detection pipe 16 detects that the water temperature is abnormal, a signal can be fed back to the PLC controller 6, then the PLC controller 6 can control the electric push rod 11 arranged on the seal mounting plate 10 to start, as the movable end of the electric push rod 11 is fixedly connected with the piston head 18, the electric push rod 11 can push the piston head 18 to the inner cavity of the first communication port 1201, the first communication port 1201 can be blocked by the piston head 18 and the piston ring 19, and at the moment, the inner cavities of the second communication port 1202 and the third communication port 1203 are mutually communicated, and the hot water flowing back into the three-way pipe 12 through the water supply pipe 13 can not enter the inner cavity of the water supply pump 8 through the first communication port 1201, so that the water supply pump 8 is effectively protected from damage, the utility model is provided with a water level sensor 2, a temperature sensor 17 and an audible and visual alarm 14, when the hot water in the steam boiler 1 flows back through the water supply pipe 13, the water level sensor 2 can detect the water level in the steam boiler 1 to be too low, the temperature sensor 17 can detect the water temperature passing through the water supply pipe 13 to be too high, and the signals of the two are fed back to the PLC controller 6, so that the PLC controller 6 can control the starting of the audible and visual alarm 14 arranged on the top surface of the control box 5 to warn workers of faults on the one hand and make the automatic water supplementing device for the once-through boiler safer to use, and on the other hand, people around the unknown conditions need to be warned not to approach each other to prevent the automatic water supplementing device for the once-through boiler 13 from being scalded, thereby further improving the safety of the automatic water supplementing device for the once-through the high-through temperature water supply pipe 13.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (5)

1. The utility model provides an automatic water replenishing device for a once-through boiler, includes steam boiler (1), mounting plate (7), feed pump (8), three-way pipe (12) and feed pipe (13), a serial communication port, three-way pipe (12) are including first intercommunication mouth (1201), second intercommunication mouth (1202) and third intercommunication mouth (1203), fixedly mounted has feed pump (8) on mounting plate (7), and feed pump (8) water inlet intercommunication is connected with drinking-water pipe (9), and feed pump (8) delivery port intercommunication is connected with first intercommunication mouth (1201), steam boiler (1) one side intercommunication is connected with feed pipe (13) one end, and feed pipe (13) other end intercommunication is connected with second intercommunication mouth (1202), and install check valve (15) on feed pipe (13), install detection pipe (16) on the intercommunication, and install temperature sensor (17) in detection pipe (16), install sealed mounting plate (1203) fixed mounting plate (10) and install electric putter (11) on sealed mounting plate (10) to electric putter (18) end, piston head (18) movable mounting piston ring (18), one side of the third communication port (1203) is communicated and connected with a pressure reducing pipe (20).

2. The automatic water replenishing device for a once-through boiler according to claim 1, wherein a water level sensor (2) is installed in the steam boiler (1).

3. The automatic water replenishing device for the direct-current boiler according to claim 1, wherein a control box (5) is fixedly arranged on the top surface of the mounting bottom plate (7), a PLC (programmable logic controller) controller (6) is arranged in the control box (5), an audible and visual alarm (14) is arranged on the top surface of the control box (5), and the PLC controller (6) is electrically connected with a water feeding pump (8), a water level sensor (2), a temperature sensor (17), an electric push rod (11) and the audible and visual alarm (14).

4. The automatic water replenishing device for a once-through boiler according to claim 1, wherein the piston head (18) is on the same straight line with the central axes of the first communication port (1201) and the second communication port (1202).

5. The automatic water replenishing device for the once-through boiler according to claim 1, wherein the steam boiler (1) is fixedly installed in the installation frame (3), and a plurality of supporting foot frames (4) are uniformly and fixedly installed on the bottom surface of the installation frame (3).