CN213778204U - Solar anti-freezing anti-scaling heat collection composite heat exchange tank - Google Patents

Abstract

The utility model relates to a solar energy prevents frostbite and scale control thermal-arrest compound heat transfer jar is divided into pressure-bearing cavity A and ordinary pressure cavity B two parts with the jar body by baffle 8. A floating heat exchange tube bundle is arranged in a pressure bearing water tank body contained in the pressure bearing cavity A, a heat medium water inlet of the solar heat collection system is connected with one end of the floating heat exchange tube bundle, and the other end of the floating heat exchange tube bundle penetrates through a partition plate between the pressure bearing cavity and the normal pressure cavity and is connected with a water replenishing port of the solar heat collection system through a heat exchange tube inlet of the normal pressure tank body in the normal pressure cavity B; the pressure-bearing water tank body is provided with a hot water outlet, a cold water inlet, a pressure-bearing cavity sewage discharge outlet, a main auxiliary instrument and an element; the normal pressure cavity B comprises a normal pressure tank body, a heat exchange pipe inlet, an anti-freezing water drain outlet of the solar heat collection system, a medium water replenishing port of the heat collection system, a normal pressure drain outlet, a medium water outlet of the solar heat collection system, a water level gauge, a liquid level sensor, a connector P3, a temperature sensor and a connector T3 are arranged on the cavity B. The utility model has the structural characteristics of solar energy system's frostproofing, scale control.

Description

Solar anti-freezing anti-scaling heat collection composite heat exchange tank

Technical Field

The utility model relates to a be suitable for among northern area solar water heating system specially thermal-arrest for indirect formula thermal-arrest, thermal-arrest system does not rely on the electricity to carry out the compound positive displacement heat transfer jar of pressure-bearing cavity and ordinary pressure cavity in an organic whole that prevents frostbite, heat transfer system and scale control when requiring to put into service winter moreover.

Background

At present, the following problems exist in the northern solar water heating system:

1. the problem of anti-freezing of a heat collection system is as follows:

firstly, when the heat collecting system adopts medium water as a medium, outdoor pipelines are easy to freeze when the temperature is low in winter, and in order to prevent freezing, the following modes are generally adopted, namely a, the pipelines are winded with electrothermal tapes and are prevented from freezing through electric tracing, so that the defects of low energy consumption and unsafety because the electric tracing is not dependent on electricity are not only realized; b, low-temperature circulation, namely starting a water pump to circulate when the temperature of the pipeline is lower than a set value, circulating the heat-collected hot water into the pipeline to prevent the pipeline from being frozen due to temperature reduction, and having the defects that heat is lost to the environment, the heat is lost, and useless work is done;

secondly, the heat collecting system adopts an antifreezing medium, although antifreezing can be achieved, the defect is that the antifreezing medium is easy to leak due to thermal expansion when the temperature of the heat collecting system is high in summer, so that the environment is polluted and the environment is not protected;

2. the heat exchange system has the following anti-scaling and heat exchange efficiency: in northern areas, water quality is hard, and heat exchange tube bundles and heat collecting pipeline equipment are easy to scale, so that heating benefit is seriously influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a solar anti-freezing anti-scaling heat collection composite heat exchange tank. The heat exchange tank can adapt to environmental characteristics in northern areas, effectively utilizes solar heat energy, is suitable for a heat collection system by an emptying anti-freezing method, has the structural characteristics of being beneficial to improving heat exchange efficiency and preventing scaling, can be suitable for supplying water by utilizing the original water pressure of tap water, has compact structure and can be divided into a horizontal type and a vertical type.

The purpose of the utility model can be realized by the following technical proposal:

the structure is composed of (horizontal and vertical):

horizontal heat exchange tank

A solar anti-freezing anti-scaling heat collection composite heat exchange tank is characterized in that a tank body is divided into a pressure-bearing cavity A and a normal-pressure cavity B by a partition plate 8 between the pressure-bearing cavity and the normal-pressure cavity, and the tank is characterized in that:

the pressure-bearing cavity A contains: the solar heat collection system comprises a pressure-bearing water tank body, a floating type heat exchange tube bundle is arranged in the pressure-bearing water tank body, heat medium water of the solar heat collection system is connected with one end of the floating type heat exchange tube bundle, and the other end of the floating type heat exchange tube bundle penetrates through a partition plate between a pressure-bearing cavity and a normal-pressure cavity and is connected with a water replenishing port of the solar heat collection system through a heat exchange tube inlet of a normal-pressure tank body in a normal-pressure cavity B; the pressure-bearing water tank body is provided with a pressure gauge, a port P2, a pressure sensor, a port P1, a thermometer, a port T2, a temperature sensor, a port T1, a safety valve, a port, a hot water outlet, a cold water (tap water) inlet and a pressure-bearing cavity sewage outlet;

a normal-pressure cavity B: the solar energy heat collection system comprises an atmospheric pressure tank body, wherein a cavity B is provided with a heat exchange tube inlet, a solar energy heat collection system anti-freezing water drain outlet, a heat collection system medium water (common softened water) water supplement port, an atmospheric pressure sewage drain outlet, a solar energy heat collection system medium water outlet, a water level gauge, a liquid level sensor, a connector P3 (the bottom of the tank body), a temperature sensor and a connector T3;

vertical heat exchange tank: the installation mode of each element of the heat exchange tank is basically the same as that of a horizontal type, and the difference is that a pressure gauge and a port P2, a pressure sensor and a port P1, a thermometer and a port T2, a temperature sensor and a port T1, and a safety valve and a port are positioned at the top of the tank body.

The utility model discloses an advantage is with the beneficial effect who produces:

the utility model is provided with a normal pressure cavity, heat collecting system medium water is arranged in the cavity, the cavity is provided with an anti-freezing water drain opening and is connected with a related emptying electromagnetic valve pipeline, and the medium water in the heat collecting pipeline can be drained into the normal pressure cavity of the heat exchange tank at low temperature;

the utility model discloses be equipped with the pressure-bearing cavity, built-in heat exchange tube has the heat medium water of thermal-arrest in the heat exchange tube, and the running water in the heat transfer pressure-bearing cavity, the pressure water supply of the running water of heating through original running water need not the release, has the advantage of energy-conserving investment saving. Simultaneously the utility model discloses be equipped with the frostproofing outlet of solar energy collection system, excrete the deposit water in the floating heat transfer pipe, have solar energy system's structural feature frostproofing, scale control.

Drawings

FIG. 1 is a schematic view of a horizontal heat exchange tank.

Fig. 2 is a schematic view of a vertical heat exchange tank.

Detailed Description

The technical solution of the present invention is further explained below with reference to the accompanying drawings:

a solar anti-freezing anti-scaling heat collection composite heat exchange tank is characterized in that a tank body is divided into a pressure-bearing cavity A and a normal-pressure cavity B by a partition plate, and the solar anti-freezing anti-scaling heat collection composite heat exchange tank is characterized in that:

the pressure-bearing cavity A contains: a coiled pipe type floating heat exchange tube bundle 2 is arranged in a pressure bearing water tank body 1, a heat medium water inlet 3 of a solar heat collection system is connected with one end of the floating heat exchange tube bundle 2, the other end of the floating heat exchange tube bundle 2 penetrates through a partition plate 8 between a pressure bearing cavity and a normal pressure cavity, and is connected with a water replenishing port 12 of the solar heat collection system through a heat exchange tube inlet 10 of a normal pressure tank body 9 in a normal pressure cavity B; the pressure-bearing water tank body 1 is provided with a pressure gauge and a port P2, a pressure sensor and a port P1, a thermometer and a port T2, a temperature sensor and a port T1, a safety valve and a port 4, a hot water outlet 5, a cold water (tap water) inlet 6 and a pressure-bearing cavity sewage outlet 7;

a normal-pressure cavity B: the solar energy heat collection system comprises an atmospheric tank 9, a cavity B is provided with a heat exchange tube inlet 10, a solar energy heat collection system anti-freezing water drain opening 11, a solar energy heat collection system (common softened water) water replenishing opening 12, a sewage drain opening 13, a solar energy heat collection system hot medium water outlet 14, a water level gauge 15, a liquid level sensor, a connector P3 (tank bottom), a temperature sensor and a connector T3.

The utility model adopts the floating coil type heat exchange tube bundle 2 as the heat exchange tube, and simultaneously, an independent pressure-bearing cavity A is arranged for the heat collecting medium, and the heat collecting medium adopts softened water, thus effectively preventing the floating heat exchange tube bundle 2 from scaling; the heat exchange tank adopts a floating type heat exchange tube bundle 2 as a built-in structure, a hot coal water inlet 3 of the solar heat collection system is arranged to heat tap water in the heat exchange pressure-bearing cavity through the heat exchange tube bundle by utilizing the waste heat of the hot coal water, the hot coal water is discharged from an outlet, and the heated hot water is discharged from a hot medium water outlet 14 of the solar heat collection system, so that heat resources are recycled. The normal pressure cavity B is lack of water and can be supplemented with water by a water supplementing port 12 of the solar heat collecting system. Meanwhile, the water supply cavity and the heat collecting medium cavity are separated by the partition plate 8 between the pressure-bearing cavity and the normal-pressure cavity, heat exchange heat loss is small, and waste heat is transferred to the other side of the partition plate through the partition plate to heat cold water supplemented from the tap water cold water inlet 6.

Tap water is replenished through the water inlet of the pressure-bearing cavity A, and the cavity is pressure-bearing, so that the water can be supplied by depending on the original tap water pressure without secondary pressurization; meanwhile, the pressure of the hot water and the pressure of the cold water at the water using terminal are consistent, and the mutual adjustment can be realized, so that the equipment investment of a related pressure pump and the like is reduced.

The utility model adopts softened water as the medium water of the heat collecting system, which can prevent the scale formation of the heat collecting system and the floating heat exchange tube bundle 2; the water is replenished into the normal pressure cavity B through a water replenishing port 12 of the solar heat collecting system, the liquid replenishing height is controlled through a liquid level transmitter (used under the automatic control working condition) or a water level meter 15 (used under the manual working condition), the normal pressure tank body 9 cannot be replenished, and the volume capable of containing water emptied in a pipeline of the heat collecting system is generally reserved;

when the outdoor temperature is lower than the anti-freezing temperature, the low-level evacuation solenoid valve of the heat collection system is opened, the heat medium water in the heat collection system pipeline is evacuated to the normal pressure cavity B through the heat exchange tube inlet 10 connected with the normal pressure cavity pressure relief opening, and the anti-freezing function of the system is realized through the anti-freezing water drain opening 11 of the solar heat collection system. The implementation of this function must have the following points: a, a heat collection system is higher than the normal pressure cavity of the heat exchange tank; b, the solar heat collector is required to be in a vertical arrangement mode, so that the medium water in the heat collecting pipeline is less, the heat collecting pipe can be selected to be a water-free type or a water-free type, and the water in the water-free type vacuum pipe can bear the temperature of minus 40 ℃ and cannot be frozen; c, the emptying electromagnetic valve must be normally open, so that the situation that the emptying electromagnetic valve is not opened when power is cut off accidentally is prevented, and a pipeline is frozen;

the heat collector in the heat exchange tank is vertically arranged, the installation position is higher than the machine room, when the temperature is lower than a set value, a related electromagnetic valve (normally open type) is opened, water in the heat collecting pipeline is discharged into containers such as a water tank (tank) in the machine room, the heat collecting pipeline is naturally prevented from freezing after being emptied, and when the external temperature is higher than the set value, the emptying electromagnetic valve is closed when the heat collecting pump is restarted.

The safety valve 4 arranged on the pressure-bearing cavity A can discharge water under overpressure, the temperature sensor T1 and the pressure sensor P1 can be matched with an automatic control working condition to transmit control parameter signals of the temperature and the pressure in the pressure-bearing water tank body 1, and the temperature and pressure gauge can visually observe the actual temperature and pressure working condition value of the pressure-bearing water tank body 1; similarly, the temperature sensor T3 and the pressure sensor P3 disposed in the normal pressure chamber can cooperate with the automatic control working condition to transmit the control parameter signals of the temperature and the pressure in the normal pressure tank 9.

And the water and sewage generated in the pressure-bearing cavity A and the normal-pressure cavity B are respectively discharged from a sewage outlet 7 of the pressure-bearing cavity and a sewage outlet 13 of the normal-pressure cavity.

Claims (1)

1. The utility model provides a compound heat transfer jar of solar energy anti-freeze scale control thermal-arrest, is divided into pressure-bearing cavity A and ordinary pressure cavity B two parts with jar body by baffle (8) between pressure-bearing cavity and the ordinary pressure cavity, characterized by:

the pressure-bearing cavity A contains: a floating type heat exchange tube bundle (2) is arranged in the pressure-bearing water tank body (1), a heat medium water inlet (3) of the solar heat collection system is connected with one end of the floating type heat exchange tube bundle (2), the other end of the floating type heat exchange tube bundle (2) penetrates through a partition plate (8) between the pressure-bearing cavity and the normal-pressure cavity, and is connected with a water replenishing port (12) of the solar heat collection system through a heat exchange tube inlet (10) of a normal-pressure tank body (9) in the normal-pressure cavity B; the pressure-bearing water tank body (1) is provided with a pressure gauge and a port P2, a pressure sensor and a port P1, a thermometer and a port T2, a temperature sensor and a port T1, a safety valve and a port (4), a hot water outlet (5), a cold water inlet (6) and a pressure-bearing cavity sewage draining outlet (7);

a normal-pressure cavity B: the solar heat collection system comprises an atmospheric tank body (9), wherein a cavity B is provided with a heat exchange tube inlet (10), an anti-freezing water drain outlet (11) of the solar heat collection system, a water replenishing port (12) of the solar heat collection system, an atmospheric sewage drain outlet (13), a heat medium water outlet (14) of the solar heat collection system, a water level gauge (15), a liquid level sensor and interface P3, a temperature sensor and interface T3.

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