CN209877065U

CN209877065U - Novel heating system

Info

Publication number: CN209877065U
Application number: CN201920440593.1U
Authority: CN
Inventors: 王晓伟; 王振鹏
Original assignee: Shandong Yongjie Thermal Energy Technology Co Ltd
Current assignee: Shandong Yongjie Thermal Energy Technology Co Ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2019-12-31
Anticipated expiration: 2029-04-03

Abstract

The utility model provides a novel heating system, including gas boiler, each water supply mouth of a plurality of gas boiler couples into the main pipeline of primary system water supply through the lateral conduit that is equipped with the valve in the lump respectively, the main pipeline end of primary system water supply inserts the one-time water inlet end intercommunication of plate heat exchanger through the primary circulation pump that connects in parallel, the one-time water outlet end of plate heat exchanger links to each other the switch-on through the main pipeline of primary system return water with the top of the main pipeline of primary system water supply, the main pipeline of primary system return water is connected to each return water mouth of each gas boiler through each lateral conduit two that connects into it on and, be equipped with valve, boiler circulating pump on the lateral conduit two; and the secondary water outlet end of the plate heat exchanger is connected to the heating water end through a branch pipeline III and communicated with the heating water end, and the heating water return end is connected to the secondary water inlet end of the plate heat exchanger through a dirt separator and a secondary circulating pump connected in parallel and communicated with the heating water end. This heating system's a system rivers are more stable, and the power of the circulating pump of access is low, and the energy consumption is few.

Description

Novel heating system

Technical Field

The utility model relates to a heating equipment technical field specifically is a novel heating system.

Background

At present, many modular condensing boiler's heating system designs mainly to have following two kinds of forms, a boiler heating system only adopts primary system and uses a circulating pump, primary system is in sending into plate heat exchanger through the hot water after the circulating pump with the boiler heating, after the heat exchange, get back to primary system return water pipeline, repeated circulation heating, and primary system pipeline can not independent circulation under the condition of not communicateing the boiler, primary system water can only realize the circulation through the boiler, this kind of circulation system has following problem, 1, circulating water pump parameter need set up according to all boiler equipment total demands, high power, the energy consumption is big. 2. When only a few boilers start, the water pump does not match, and the energy waste is serious. 3. When only a few boilers are started, the boilers which are not started can also be circulated with water, so that low-temperature return water is mixed with high-temperature boiler water supply, the overall water supply temperature can be reduced, the boilers can become radiating equipment at the moment, and the overall energy consumption of the system is increased. 4. The primary system is in the operation in-process, owing to lead to the atmosphere pipeline, has the problem of crossing water each other between the boiler, reduces the discharge of operation boiler, leads to boiler water temperature control not accurate, and leads to the atmosphere pipeline by the heating, has increased pipeline heat dissipation loss, has reduced energy utilization.

The second boiler heating system does not employ a primary system, and such a circulation system has the following problems. 1. The lift that the water pump provided need overcome boiler, plate heat exchanger and pipeline valve resistance, therefore the water pump lift is higher, and this can lead to boiler export atmosphere union coupling department pressure higher, needs to increase expansion tank, just can prevent that system's water from overflowing from expansion tank, and it is higher to engineering site conditions requirement. 2. The flow of the water pump is matched with the corresponding boiler, but the lift is higher, the power can be increased, and the electric energy consumption is increased when a plurality of boilers are operated on line. A solution is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel heating system, its aim at solve current heating system's boiler life-span short, the operation is not steady, temperature control is not accurate, circulating water pump power is high, the energy consumption is high, the water pump mismatch the extravagant problem of the energy that causes when the quantity that the boiler started reduces.

The utility model adopts the following technical scheme:

a novel heating system comprises a gas boiler, wherein water supply ports of the gas boiler are connected into a primary system water supply main pipeline through branch pipelines provided with valves, the tail end of the primary system water supply main pipeline is connected into a primary water inlet end of a plate heat exchanger through a primary circulating pump connected in parallel to be communicated, a primary water outlet end of the plate heat exchanger is connected and communicated with the initial end of the primary system water supply main pipeline through a primary system return water main pipeline, the primary system return water main pipeline is connected to return water ports of the gas boilers through branch pipelines connected to the primary system return water main pipeline in parallel, and the branch pipelines are provided with valves and boiler circulating pumps;

and the secondary water outlet end of the plate heat exchanger is connected to a heating water end through a branch pipeline III and communicated with the heating water end, and the heating water return end is connected to the secondary water inlet end of the plate heat exchanger through a dirt remover and a secondary circulating pump connected in parallel and communicated with the heating water end.

An expansion water tank is arranged above the gas-fired boiler, a tap water pipe is communicated with a water inlet of the expansion water tank and is provided with a control valve or is communicated with the water inlet through a full-automatic water softener and is provided with a control valve, and a water outlet of the expansion water tank is connected with a water supply port of each gas-fired boiler in parallel through a pipeline and is communicated with the water supply port of the gas-fired boiler.

The water outlet end of the dirt separator is communicated with the water inlet end of the softened water tank through a secondary water replenishing pump connected in parallel, and the water outlet end of the softened water tank is communicated with the water inlet of the expansion water tank or communicated to the expansion water tank through the full-automatic water softener and is provided with control valves.

And a safety valve is arranged on the branch pipeline III between the secondary water outlet end of the plate heat exchanger and the heating water end.

The primary circulating pump, the secondary circulating pump and the secondary water replenishing pump are connected in parallel.

The utility model has the advantages as follows:

(1) the boiler has no water cross and flow reduction problems, the boiler operates more stably, and the service life of the boiler can be prolonged.

(2) The expansion tank can effectively reduce the height and reduce the requirements on engineering site conditions.

(3) The primary circulating pump only needs to overcome the resistance of the plate heat exchanger and the resistance of the main pipeline, so that the parameters of the water pump can be reduced, the power can be reduced, and the energy consumption can be reduced.

(4) The water flow of the primary system is more stable, and the water flow is not influenced by the number of the starting boilers.

Description of the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Reference numerals:

1-gas boiler, 2-boiler circulating pump, 3-primary circulating pump, 4-secondary circulating pump, 5-secondary water replenishing pump, 6-plate heat exchanger, 7-primary system main water supply pipe, 8-primary system main water return pipe, 9-tap water pipe, 10-full-automatic water softener, 11-softening water tank, 12-expansion water tank, 13-dirt separator, 14-heating water end, 15-heating water return end, 16-safety valve

The specific implementation mode is as follows:

the following describes the embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1, a novel heating system comprises a gas boiler, wherein water supply ports of the gas boiler 1 are connected to a primary system water supply main pipe 7 through branch pipes provided with valves, the tail end of the primary system water supply main pipe 7 is connected to a primary water inlet end of a plate heat exchanger 6 through a primary circulating pump 3 connected in parallel and communicated with the primary water inlet end of the primary system water supply main pipe 7, a primary water outlet end of the plate heat exchanger 6 is connected to and communicated with the initial end of the primary system water supply main pipe 7 through a primary system return water main pipe 8, the primary system return water main pipe 8 is connected to return water ports of the gas boilers 1 through branch pipes two connected to the primary system return water main pipe 8 in parallel, and valves and boiler circulating pumps 2 are arranged on the branch pipes two;

the secondary water outlet end of the plate heat exchanger 6 is connected to and communicated with a heating water end 14 through a branch pipeline III, and the heating water return end 15 is connected to and communicated with the secondary water inlet end of the plate heat exchanger 6 through a dirt separator 13 and a secondary circulating pump 4 connected in parallel, as shown in fig. 1.

An expansion water tank 12 is arranged above the gas-fired boiler 1, a tap water pipe 9 is communicated with a water inlet of the expansion water tank 12 and is provided with a control valve or is communicated with the water inlet through a full-automatic water softener 10 and is provided with a control valve, and a water outlet of the expansion water tank 12 is connected with a water supply port of each gas-fired boiler 1 in parallel through a pipeline and is communicated with the water supply port, as shown in fig. 1.

The water outlet end of the dirt separator 13 is communicated with the water inlet end of the softened water tank 11 through the secondary water replenishing pump 5 connected in parallel, and the water outlet end of the softened water tank 11 is communicated with the water inlet of the expansion water tank 12 or communicated to the expansion water tank 12 through the full-automatic water softener 10 and is provided with control valves, as shown in fig. 1.

A safety valve 16 is arranged on the branch pipe III between the secondary water outlet end of the plate heat exchanger 6 and the heating water end 14, and the safety valve is shown in fig. 1.

The primary circulating pump 3, the secondary circulating pump 4 and the secondary water replenishing pump 5 are all connected in parallel

For a plurality of modular condensing boilers, when a normal pressure system is designed, a boiler water system is separated from a user water system through a plate heat exchanger, each boiler is provided with a circulating water pump, a set of circulating water pump is additionally arranged on a main pipeline of a primary system, and the primary system pipeline can independently circulate under the condition that the boilers are not communicated, and the reference of figure 1 is made.

Description of the system flow:

a boiler system: after the boiler starts, through boiler circulating pump, take out trunk line water to the boiler in, in the trunk line is sent back to the boiler heating after, boiler circulating pump only need overcome boiler self resistance.

A primary system: the primary circulating pump sends hot water heated by the boiler into the plate heat exchanger, and the hot water returns to a primary system water return pipeline after heat exchange, and is repeatedly heated in a circulating manner.

A secondary system: the cold water coming back from the user terminal enters the heat exchanger through the secondary circulating pump, and becomes hot water required by the user terminal after heat exchange, and the hot water is supplied to the terminal.

Claims

1. A novel heating system comprises a gas boiler, and is characterized in that water supply ports of the gas boiler (1) are connected into a primary system water supply main pipeline (7) through branch pipelines provided with valves, the tail end of the primary system water supply main pipeline (7) is connected into a primary water inlet end of a plate heat exchanger (6) through a primary circulating pump (3) connected in parallel to be communicated, a primary water outlet end of the plate heat exchanger (6) is connected and communicated with the initial end of the primary system water supply main pipeline (7) through a primary system return water main pipeline (8), the primary system return water main pipeline (8) is connected to return water ports of the gas boilers (1) through branch pipelines two connected into the primary system water supply main pipeline in parallel, and the branch pipelines are provided with valves and boiler circulating pumps (2);

and the secondary water outlet end of the plate heat exchanger (6) is communicated with the heating water end (14) through a branch pipeline III, and the heating water return end (15) is communicated with the secondary water inlet end of the plate heat exchanger (6) through a dirt remover (13) and a secondary circulating pump (4) connected in parallel.

2. A new type heating system as claimed in claim 1, characterized in that an expansion tank (12) is arranged above the gas boiler (1), a tap water pipe (9) is communicated with the water inlet of the expansion tank (12) and is provided with a control valve or is communicated with the water inlet through a full automatic water softener (10) and is provided with a control valve, and the water outlet of the expansion tank (12) is connected in parallel with the water supply port of each gas boiler (1) through a pipeline and is communicated.

3. A new type heating system as claimed in claim 1, characterized in that the water outlet end of the dirt separator (13) is connected with the water inlet end of the softened water tank (11) through a secondary water replenishing pump (5) connected in parallel, the water outlet end of the softened water tank (11) is connected with the water inlet of the expansion water tank (12) or is connected with the expansion water tank (12) through a full automatic water softener (10) and is provided with a control valve.

4. A new type heating system as claimed in claim 1, characterised in that a safety valve (16) is arranged on the branch pipe III between the secondary water outlet end of the plate heat exchanger (6) and the heating water end (14).

5. A novel heating system as claimed in claim 1, characterized in that the primary circulation pump (3), the secondary circulation pump (4) and the secondary water replenishing pump (5) are connected in parallel.