CN201561541U

CN201561541U - Wall-mounted gas boiler having anti-freezing device

Info

Publication number: CN201561541U
Application number: CN200920264076XU
Authority: CN
Inventors: 叶远璋; 孙云帆; 罗伟平
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2009-12-01
Filing date: 2009-12-01
Publication date: 2010-08-25
Anticipated expiration: 2019-12-01

Abstract

A wall-mounted gas boiler having an anti-freezing device comprises a water pipeline, a solenoid valve, a controller, a heat exchanger, a water pump, a swell water tank, a burner and a plate-type heat exchanger. The controller is electrically connected with the solenoid valve and the water pump; the swell water tank is assembled on a warming water return pipe in the water pipeline; the plate-type heat exchanger is communicated with a hot water pipe and a cold water inlet pipe in the water pipeline; the wall-mounted gas boiler is mainly and technically characterized by also comprising an anti-freezing unit which comprises an anti-freezing decompression pipe, a piston, a spring and an end cover; the piston is arranged on the inner side of a water inlet at the front end of the anti-freezing decompression pipe and flexibly sealed with the anti-freezing decompression pipe; the end cover is provided with a through hole; the end cover is connected at the tail end of the anti-freezing decompression pipe; the spring is arranged in the anti-freezing decompression pipe; and the anti-freezing unit is communicated with the water pipeline through the water inlet of the anti-freezing decompression pipe. The wall-mounted gas boiler has an excellent anti-freezing function under the condition of power failure without energy consumption.

Description

The burnt gas wall hanging furnace of band defroster

Technical field: the utility model relates to a kind of burnt gas wall hanging furnace with defroster.

Background technology: existing burnt gas wall hanging furnace; when preventing that environment temperature is low in the burnt gas wall hanging furnace water pipe in the heat exchanger because of the water freezing spalling in managing; existing technical scheme adopts following three kinds of antifreeze modes usually: electrical heating antifreezing; the combustion gas heating and anti-freezing; the draining of manual drainage valve; preceding two kinds of antifreeze modes must civil power could operate as normal; need simultaneously constantly to heat; and consume a large amount of energy; electrical heating antifreezing and combustion gas heating and anti-freezing all can't be worked under situation about having a power failure; the draining of manual drainage valve needs user's manual operations draining valve to discharge water; the user usually can forget and discharges water in actual the use; and cause the burnt gas wall hanging furnace inner water tube by bursting by freezing; cause to exist defroster to waste energy, can't normal antifreeze defective under the power failure situation.For overcoming these defectives, the burnt gas wall hanging furnace of band defroster is developed.

Summary of the invention: technical problem to be solved in the utility model is that a kind of burnt gas wall hanging furnace with defroster will be provided, and it does not need consumes energy, can be antifreeze effectively under the power failure situation.

The technical scheme that its technical problem that solves the utility model adopts is: it comprises water pipe, magnetic valve, controller, heat exchanger, water pump, expansion tank, burner, plate type heat exchanger, controller and magnetic valve, water pump electrically connects, expansion tank is contained on the heating return pipe in the water pipe, hot-water line in plate type heat exchanger and the water pipe, cold water inlet is communicated with, it also comprises antifreeze unit, described antifreeze unit comprises antifreeze relief tube, piston, spring, end cap, piston be installed in the inboard of antifreeze relief tube front end water inlet and with antifreeze relief tube movable sealing, end cap is provided with through hole, end cap is connected in the end of antifreeze relief tube, spring is installed in the antifreeze relief tube, and antifreeze unit is communicated with water pipe by the water inlet of antifreeze relief tube.

It also comprises sealing ring, and described sealing ring is enclosed within on the piston.

The corner of heating return pipe is equipped with antifreeze unit in the described water pipe.

Antifreeze unit is installed on the cold water inlet in the described water pipe.

The sectional area of described antifreeze relief tube is more than or equal to the sectional area of water pipe.

The sectional area of described antifreeze relief tube is less than the sectional area of water pipe.

Described antifreeze relief tube front end is provided with step, and water pipe is communicated with antifreeze relief tube by step.

The utility model is compared the beneficial effect that is produced with background technology:

1, because the utility model adopts antifreeze unit, antifreeze unit comprises antifreeze relief tube, piston, spring, end cap, piston be installed in the inboard of antifreeze relief tube front end water inlet and with antifreeze relief tube movable sealing, end cap is provided with through hole, end cap is connected in the end of antifreeze relief tube, and spring is installed in the antifreeze relief tube, the structure that the water inlet of antifreeze unit by antifreeze relief tube is communicated with water pipe, so it does not need consumes energy, can be antifreeze effectively under the power failure situation.

Description of drawings: Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the annexation enlarged diagram of antifreeze unit 2 and water pipe 1 among Fig. 1.

Fig. 3 is the antifreeze unit 2 of another kind of structure among Fig. 1 and the annexation enlarged diagram of water pipe 1.

The specific embodiment: shown in accompanying drawing 1, accompanying drawing 2, present embodiment comprises water pipe 1, antifreeze unit 2, magnetic valve 13, controller 14, heat exchanger 15, smoke pipe 16, blower fan 17, gas ratio valve 18, water flow sensor 19, water pump 20, expansion tank 21, burner 22, plate type heat exchanger 23, controller 14 electrically connects with magnetic valve 13, blower fan 17, gas ratio valve 18, water flow sensor 19, water pump 20.Expansion tank 21 is contained on the heating return pipe 11 in the water pipe 1, and plate type heat exchanger 23 is communicated with hot-water line 6, cold water inlet 5 in the water pipe 1.

Antifreeze unit 2 comprises antifreeze relief tube 4, piston 7, spring 8, end cap 10, piston 7 is installed in the inboard of antifreeze relief tube 4 front end water inlets 3, and with antifreeze relief tube movable sealing, end cap 10 is provided with through hole 12, sealing ring 9 is enclosed within on the piston 7, the quantity of sealing ring 9 can be more than one, as one, two, three, four etc., end cap 10 can be threadedly connected to the end of antifreeze relief tube 4, spring 8 is installed in the antifreeze relief tube 4, spring 8 two ends can be respectively and the interior side contacts of piston 7 and end cap 10, and antifreeze unit 2 is communicated with water pipe 1 by the water inlet 3 of antifreeze relief tube 4.Antifreeze unit 2 can be installed in the corner of heating return pipe 11 in the water pipe 1, also can be installed in the water pipe 1 on the cold water inlet 5.

Antifreeze unit 2 is installed in antifreezing effect on the heating return pipe 11 and is better than antifreeze relief tube 4 and is installed on the cold water inlet 5, and a plurality of antifreeze unit 2 are installed in antifreezing effect on the heating return pipe 11 and are better than single antifreeze unit 2 and are installed on the heating return pipe 11.Antifreeze relief tube 4 can be respectively and heating return pipe 11, cold water inlet 5 global formations, and two to 12 antifreeze unit 2 can be installed on the water pipe 1.In the present embodiment, two antifreeze unit 2 are installed in respectively on the corner, cold water inlet 5 of heating return pipe 11, are with a sealing ring on the piston 7.

Antifreeze relief tube 4 sectional areas can less than, be equal to or greater than the sectional area of water pipe 1, in antifreeze relief tube 4, expand behind the water freezing in the antifreeze relief tube 4, when antifreeze relief tube 4 sectional areas during greater than the sectional area of water pipe 1, the effect of antifreeze pressure release is better, and antifreeze relief tube 4 sectional areas are greater than the sectional area of water pipe 1 in the present embodiment.

The wall hanging stove is when normal the use, the pressure of running water acts on the end face of piston 7 in the antifreeze unit 2, the piston 7 that promotes in the antifreeze unit 2 moves to end cap 10 directions, compression spring 8 reaches the dynamic balance on piston 7 both sides, at this moment antifreeze unit 2 is in poised state, the space that also has enough pistons 7 to move between piston 7 and close end cap 10 in the antifreeze relief tube 4.

When environment temperature is low, water freezing in heating return pipe 11 in the water pipe 1, the cold water inlet 5 solidifies, volume becomes big behind the water freezing, promote piston 7 extrusion springs 8, and move to the direction of end cap 10, the through hole 12 of air in the antifreeze relief tube 4 from end cap 10 discharged, the part ice cube enters in the antifreeze relief tube 4, reduced after the water freezing volumetric expansion ice cube greatly to the pressure of water pipe in the water pipe 1, when avoiding environment temperature low in the burnt gas wall hanging furnace water pipe in the heat exchanger because of the water freezing spalling in managing.Antifreeze unit 2 does not need civil power, does not need user's manual operations draining valve to discharge water yet, so it does not need consumes energy, and can be antifreeze effectively under the power failure situation.Can be applicable to chimney flue type burnt gas wall hanging furnace, balanced type burnt gas wall hanging furnace.

Embodiment two, and shown in accompanying drawing 1, accompanying drawing 3, antifreeze relief tube 4 front ends are provided with step 24, and water pipe 1 is communicated with antifreeze relief tube 4 by step 24.Other parts and annexation thereof in the present embodiment, the course of work, operation principle are identical with embodiment one, repeat no more here.

Claims

1. burnt gas wall hanging furnace with defroster, it comprises water pipe (1), magnetic valve (13), controller (14), heat exchanger (15), water pump (20), expansion tank (21), burner (22), plate type heat exchanger (23), controller (14) and magnetic valve (13), water pump (20) electrically connects, expansion tank (21) is contained on the heating return pipe (11) in the water pipe (1), hot-water line (6) in plate type heat exchanger (23) and the water pipe (1), cold water inlet (5) is communicated with, it is characterized in that it also comprises antifreeze unit (2), described antifreeze unit (2) comprises antifreeze relief tube (4), piston (7), spring (8), end cap (10), piston (7) be installed in the inboard of antifreeze relief tube (4) front end water inlet (3) and with antifreeze relief tube (4) movable sealing, end cap (10) is provided with through hole (12), end cap (10) is connected in the end of antifreeze relief tube (4), spring (8) is installed in the antifreeze relief tube (4), and antifreeze unit (2) are communicated with water pipe (1) by the water inlet (3) of antifreeze relief tube (4).

2. the burnt gas wall hanging furnace of band defroster according to claim 1 is characterized in that it also comprises sealing ring (9), and described sealing ring (9) is enclosed within on the piston (7).

3. the burnt gas wall hanging furnace of band defroster according to claim 1 and 2 is characterized in that the corner of heating return pipe (11) in the described water pipe (1) is equipped with antifreeze unit (2).

4. the burnt gas wall hanging furnace of band defroster according to claim 3 is characterized in that on the cold water inlet (5) antifreeze unit (2) being installed in the described water pipe (1).

5. the burnt gas wall hanging furnace of band defroster according to claim 3 is characterized in that the sectional area of the sectional area of described antifreeze relief tube (4) more than or equal to water pipe (1).

6. the burnt gas wall hanging furnace of band defroster according to claim 4 is characterized in that the sectional area of the sectional area of described antifreeze relief tube (4) more than or equal to water pipe (1).

7. the burnt gas wall hanging furnace of band defroster according to claim 1 and 2 is characterized in that the sectional area of the sectional area of described antifreeze relief tube (4) less than water pipe (1).

8. the burnt gas wall hanging furnace of band defroster according to claim 3 is characterized in that the sectional area of the sectional area of described antifreeze relief tube (4) less than water pipe (1).

9. the burnt gas wall hanging furnace of band defroster according to claim 4 is characterized in that the sectional area of the sectional area of described antifreeze relief tube (4) less than water pipe (1).

10. gas heater frost valve according to claim 5 is characterized in that described antifreeze relief tube (4) front end is provided with step (24), and water pipe (1) is communicated with antifreeze relief tube (2) by step (24).