Paraffin-covered open type heat storage heating system

Abstract

The utility model provides a paraffin-covered open type heat storage heating system, and relates to the field of heat storage heating base stations. An open heat storage water tank is installed on the left side of the upper end face of the concrete base, and a heat exchanger is installed on the right side of the upper end face of the concrete base. A circulating water pump is installed on the right rear portion of the upper end face of the concrete base, and a water outlet of the circulating water pump is connected with a first water inlet in the rear end of the heat exchanger through a water pipe. Through the arrangement of the paraffin layer, the phenomena of evaporation, gasification and heat loss in the heating and energy storage process of the heat storage fresh water can be prevented, so that the heating conversion efficiency of the heating element is improved, and the effects of resisting oxygen and preventing the inner wall of the open type heat storage water tank from being corroded can be achieved through the paraffin layer; the problems that in the water heating process of an open type heat storage water tank in an existing heat storage heating base station, water can be gasified along with temperature rising, gasification latent heat is very large, a large amount of heat in the water can be taken away, and the heating conversion efficiency of a heating element is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat storage and heating base stations, in particular to a paraffin-covered open heat storage and heating system. Background Art

[0002] Valley power thermal storage technology is a heating energy-saving transformation project strongly supported and promoted by the state. It is a mainstream product in the market for coal-to-electricity heating. Its characteristics are: green, environmentally friendly, low-carbon, energy-saving, and zero emissions. At present, the market thermal storage heating is basically divided into solid thermal storage heating and water thermal storage heating. In the process of water thermal storage heating, it will be completed through the thermal storage heating base station.

[0003] However, in the process of heating water in the open water storage tank in the existing thermal storage heating base station, the water will vaporize as the temperature rises, and the latent heat of vaporization is very large, which will take away a large amount of heat in the water, reducing the heating conversion efficiency of the heating element. Moreover, in the actual application of the open water storage tank (usually made of carbon steel) in the existing thermal storage heating base station, the inner wall of the open water storage tank is located at the junction of water and air and is prone to oxidation corrosion, which in turn affects the service life of the open water storage tank. Utility Model Content

[0004] The disclosed embodiment relates to a paraffin-covered open thermal storage heating system, which can prevent evaporation, gasification and heat loss during the thermal storage and energy storage process of the thermal fresh water by setting a paraffin layer, thereby improving the heating conversion efficiency of the heating element. The paraffin layer can also block oxygen and prevent corrosion of the inner wall of the open thermal storage water tank.

[0005] In a first aspect of the present disclosure, a paraffin-covered open heat storage heating system is provided, which specifically includes: a concrete base; an open heat storage tank is installed on the left side of the upper end surface of the concrete base, and a heat exchanger is installed on the right side of the upper end surface of the concrete base; a circulating water pump is installed on the rear right side of the upper end surface of the concrete base, and the water outlet of the circulating water pump is connected to the first water inlet at the rear end of the heat exchanger through a water pipe; a control box is installed on the right side of the front end surface of the open heat storage tank, and an audible and visual alarm is installed on the top of the control box; the open heat storage tank is filled with heat storage fresh water, and a paraffin layer floats on the surface of the heat storage fresh water.

[0006] In at least some embodiments, two H-shaped water distributors are installed on the upper and lower sides of the open hot water storage tank, and the bottom of the upper H-shaped water distributor is evenly provided with a water suction head, and the bottom of the lower H-shaped water distributor is evenly provided with a water outlet head.

[0007] In at least some embodiments, a water outlet pipe member is connected to one of the upper H-shaped water distributors, and a water inlet pipe member is connected to one of the lower H-shaped water distributors. Both the water inlet pipe member and the water outlet pipe member penetrate through the right side wall of the open-type heat storage water tank. The right end of the water outlet pipe member is connected to the suction port of the circulation water pump through a water pipe, and the right end of the water inlet pipe member is connected to the front end water outlet of the heat exchanger through a water pipe. One of the upper H-shaped water distributors is located 300 MM below the junction of the paraffin layer and the heat storage fresh water.

[0008] In at least some embodiments, an overflow pipe is fixedly installed at the upper left part of the open-type heat storage water tank, and the overflow pipe penetrates through the left side wall of the open-type heat storage water tank. The lower end of the overflow pipe extends downward into the heat storage fresh water, and the lower end of the overflow pipe is 500 MM lower than the interface between the paraffin layer and the heat storage fresh water.

[0009] In at least some embodiments, a make-up water pipe is provided at the lower left part of the open-type heat storage water tank, and a make-up water solenoid valve is installed on the make-up water pipe. The left end of the make-up water pipe is connected to a make-up water tank, and the position of the make-up water tank is higher than that of the open-type heat storage water tank.

[0010] In at least some embodiments, a water level electrode is installed on the right inner side of the open-type heat storage water tank, and the water level electrode is located below the paraffin layer.

[0011] In at least some embodiments, three temperature sensors are installed on the right inner side of the open-type heat storage water tank, and a heating element is installed at the lower end inside the open-type heat storage water tank.

[0012] The present utility model provides a paraffin-covered open-type heat storage heating system, which has the following beneficial effects:

[0013] 1. Through the arrangement of the paraffin layer, it is possible to prevent the evaporation, gasification, and heat loss of the heat storage fresh water during the heating and energy storage process, thereby improving the heating conversion efficiency of the heating element. Moreover, the paraffin layer can also play a role in oxygen resistance and preventing corrosion of the inner wall of the open-type heat storage water tank.

[0014] Through the arrangement of the water level electrode, the make-up water solenoid valve, and the sound and light alarm, when the water level of the heat storage fresh water inside the open-type heat storage water tank is lower than the preset value, the control box will open the make-up water solenoid valve and also start the sound and light alarm. After the make-up water solenoid valve is opened, the heat storage fresh water inside the make-up water tank will enter the open-type heat storage water tank to realize the automatic make-up water operation. After the sound and light alarm is started, it can bring an effective warning to the staff and avoid the phenomenon of too low water level inside the open-type heat storage water tank. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0016] The accompanying drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0017] In the accompanying drawings:

[0018] Figure 1 A schematic structural diagram of the first perspective of the present application is shown;

[0019] Figure 2 A schematic structural diagram of the second perspective of the present application is shown;

[0020] Figure 3 A schematic structural diagram of a partial cross-section of the open-type hot water storage tank of the present application is shown;

[0021] Figure 4 A schematic structural diagram of the H-type water distributor, the water outlet pipe fitting, the water inlet pipe fitting, the heat exchanger and the circulation water pump of the present application is shown.

[0022] List of reference numerals

[0023] 1, Concrete base;

[0024] 2, Open-type hot water storage tank; 201, Control box; 202, Acousto-optic alarm; 203, H-type water distributor; 204, Water outlet pipe fitting; 205, Overflow pipe; 206, Make-up water pipe; 207, Make-up water solenoid valve; 208, Water level electrode; 209, Temperature sensor; 2010, Heating element; 2011, Heat storage fresh water; 2012, Paraffin layer; 2013, Water inlet pipe fitting;

[0025] 3, Heat exchanger;

[0026] 4, Circulation water pump. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment 1: Please refer to Figures 1 to 4 :

[0029] The utility model provides a paraffin-covered open thermal storage heating system, which includes: a concrete base 1; an open thermal storage water tank 2 is installed on the left side of the upper end surface of the concrete base 1, and a heat exchanger 3 is installed on the right side of the upper end surface of the concrete base 1; a circulation water pump 4 is installed at the rear of the right side of the upper end surface of the concrete base 1, and the water outlet of the circulation water pump 4 is connected to the first water inlet at the rear end of the heat exchanger 3 through a water pipe; a control box 201 is installed on the right side of the front end surface of the open thermal storage water tank 2, and an audible and visual alarm 202 is installed on the top of the control box 201; heat storage fresh water 2011 is filled inside the open thermal storage water tank 2, and a paraffin layer 2012 floats on the water surface of the heat storage fresh water 2011;

[0030] The paraffin layer 2012 has the functions of oxygen barrier and corrosion prevention, and its corrosion prevention effect on the carbon steel open thermal storage water tank 2 is particularly obvious. Using this technology, the problem of easy oxidation and corrosion at the water-air interface can be avoided;

[0031] The paraffin layer 2012 also has the function of preventing water evaporation and steam generation, making its energy-saving effect more obvious. During the process of heating water, the paraffin mixing technology is adopted to block water and air, so that water no longer vaporizes below the boiling point;

[0032] The paraffin layer 2012 can also play a heat preservation role. Since the thermal conductivity of paraffin is 0.12 w / (m·K), which is less than that of water, a good heat preservation effect on the medium itself is achieved;

[0033] The paraffin layer 2012 can also improve the heat storage capacity. The phase change heat of paraffin is 200 kj / kg. When the phase change occurs at 52 °C, the heat storage capacity is equivalent to that of 1 kg of water rising from 50 °C to 97 °C. At the same time, when the paraffin is completely liquefied and heated from 52 °C to 95 °C, the specific heat physical property will also make 1 kg of water rise by 27.8 °C, and the heat storage capacity is much higher than that of water;

[0034] The paraffin layer 2012 also has incompatibility. Because water and paraffin are incompatible and the specific gravity of paraffin is lower than that of water, in engineering examples, if the water tank process is appropriate, paraffin will not enter the circulation system.

[0035] The paraffin layer 2012 also has good safety. Paraffin is a colorless, odorless and non-toxic organic material and can be recycled and reused; when the medium needs to be drained during system maintenance and repair, the medium must be cooled to below 40 °C. At this time, paraffin is in a solid state and can be completely recovered.

[0036] In use, first, fill the open thermal storage water tank 2 with thermal storage fresh water 2011, so that the thermal storage fresh water 2011 submerges the water level electrode 208. Then, heat the filled thermal storage fresh water 2011 to 90 degrees Celsius through the heating element 2010. Subsequently, add block or flake paraffin and let it fully melt (the paraffin will fully melt in 90-degree Celsius hot water) to form a paraffin layer 2012. Through the setting of the paraffin layer 2012, the phenomena of evaporation, gasification, and heat loss during the heating and energy storage process of the thermal storage fresh water 2011 can be prevented.

[0037] Then start the circulation water pump 4, so that one upper H-shaped water distributor 203 generates suction to transport the upper-layer thermal storage fresh water 2011 inside the open thermal storage water tank 2 to the inside of the heat exchanger 3, where it exchanges heat with the heating liquid inside the heat exchanger 3. The heat-exchanged thermal storage fresh water 2011 then returns to the inside of the open thermal storage water tank 2 through the lower H-shaped water distributor 203, and then is heated again by the heating element 2010. Just perform such cyclic operation.

[0038] A total of two H-shaped water distributors 203 are installed on the upper and lower sides inside the open thermal storage water tank 2. The bottom of the upper H-shaped water distributor 203 is evenly provided with water suction heads, and the bottom of the lower H-shaped water distributor 203 is evenly provided with water outlet heads.

[0039] An outlet pipe fitting 204 is connected to the upper H-shaped water distributor 203, and an inlet pipe fitting 2013 is connected to the lower H-shaped water distributor 203. Both the inlet pipe fitting 2013 and the outlet pipe fitting 204 penetrate through the right side wall of the open thermal storage water tank 2. The right end of the outlet pipe fitting 204 is connected to the suction port of the circulation water pump 4 through a water pipe, and the right end of the inlet pipe fitting 2013 is connected to the front end water outlet of the heat exchanger 3 through a water pipe. The upper H-shaped water distributor 203 is located 300 MM below the junction of the paraffin layer 2012 and the thermal storage fresh water 2011 and is used to suck out the thermal storage fresh water 2011.

[0040] An overflow pipe 205 is fixedly installed at the upper left part of the open thermal storage water tank 2, and the overflow pipe 205 penetrates through the left side wall of the open thermal storage water tank 2. The lower end of the overflow pipe 205 extends downward into the thermal storage fresh water 2011, and the lower end of the overflow pipe 205 is 500 MM lower than the interface between the paraffin layer 2012 and the thermal storage fresh water 2011. Through the setting of the overflow pipe 205, paraffin can be prevented from flowing out during overflow.

[0041] Three temperature sensors 209 are installed on the right inner side of the open thermal storage water tank 2, and a heating element 2010 is installed at the lower end inside the open thermal storage water tank 2 for heating the thermal storage fresh water 2011.

[0042] Example 2, based on Example 1, as Figure 1 and Figure 3As shown in the figure, a water replenishing pipe 206 is provided at the lower left side of the open-type hot water storage tank 2, and a water replenishing solenoid valve 207 is installed on the water replenishing pipe 206. The left end of the water replenishing pipe 206 is connected to a water replenishing tank, and the position of the water replenishing tank is higher than that of the open-type hot water storage tank 2. A water level electrode 208 is installed on the right inner side of the open-type hot water storage tank 2, and the water level electrode 208 is located below the paraffin layer 2012. The sound and light alarm 202, the water replenishing solenoid valve 207, the water level electrode 208, the temperature sensor 209, the heating element 2010, and the circulation pump 4 are all electrically connected to the control box 201. The water level of the heat storage fresh water 2011 inside the open-type hot water storage tank 2 is detected in real time through the water level electrode 208. When the water level of the heat storage fresh water 2011 inside the open-type hot water storage tank 2 is lower than the preset value, the control box 201 opens the water replenishing solenoid valve 207 and also starts the sound and light alarm 202. After the water replenishing solenoid valve 207 is opened, the heat storage fresh water 2011 inside the water replenishing tank will enter the open-type hot water storage tank 2 to realize the automatic water replenishing operation. After the sound and light alarm 202 is started, it can bring an effective warning effect to the staff.

[0043] In this article, the following points need to be noted:

[0044] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0045] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0046] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. Paraffin-coated open thermal storage heating system, comprising: Concrete base (1); an open-type hot water storage tank (2) is installed on the left side of the upper end surface of the concrete base (1), and a heat exchanger (3) is installed on the right side of the upper end surface of the concrete base (1); it is characterized in that a circulating water pump (4) is installed on the rear part of the right side of the upper end surface of the concrete base (1), and the water outlet of the circulating water pump (4) is connected to the first water inlet at the rear end of the heat exchanger (3) through a water pipe; A control box (201) is installed on the right side of the front end surface of the open-type hot water storage tank (2), and an audible and visual alarm (202) is installed on the top of the control box (201); The open-type hot water storage tank (2) is filled with heat storage fresh water (2011), and a paraffin layer (2012) floats on the water surface of the heat storage fresh water (2011).

2. The paraffin-coated open thermal storage heating system according to claim 1, wherein: Two H-shaped water distributors (203) are installed on the upper and lower sides inside the open-type hot water storage tank (2), and suction heads are evenly arranged at the bottom of the upper H-shaped water distributor (203), and water outlet heads are evenly arranged at the bottom of the lower H-shaped water distributor (203).

3. The paraffin-coated open thermal storage heating system according to claim 2, characterized in that: An outlet pipe fitting (204) is connected to the upper H-shaped water distributor (203), and an inlet pipe fitting (2013) is connected to the lower H-shaped water distributor (203), and both the inlet pipe fitting (2013) and the outlet pipe fitting (204) penetrate through the right side wall of the open-type hot water storage tank (2); the right end of the outlet pipe fitting (204) is connected to the suction port of the circulating water pump (4) through a water pipe, and the right end of the inlet pipe fitting (2013) is connected to the water outlet at the front end of the heat exchanger (3) through a water pipe; the upper H-shaped water distributor (203) is 300MM below the junction of the paraffin layer (2012) and the heat storage fresh water (2011).

4. The paraffin-coated open thermal storage heating system according to claim 1, wherein: An overflow pipe (205) is fixedly installed on the upper left side of the open-type hot water storage tank (2), and the overflow pipe (205) penetrates through the left side wall of the open-type hot water storage tank (2); the lower end of the overflow pipe (205) extends downward into the heat storage fresh water (2011), and the lower end of the overflow pipe (205) is 500MM lower than the interface between the paraffin layer (2012) and the heat storage fresh water (2011).

5. The paraffin-coated open thermal storage heating system according to claim 1, characterized in that: A water replenishing pipe (206) is provided at the lower left side of the open-type hot water storage tank (2), and a water replenishing solenoid valve (207) is installed on the water replenishing pipe (206). The left end of the water replenishing pipe (206) is connected to a water replenishing tank, and the position of the water replenishing tank is higher than that of the open-type hot water storage tank (2).

6. The paraffin-coated open thermal storage heating system according to claim 1, wherein: A water level electrode (208) is installed on the right inner side surface of the open-type hot water storage tank (2), and the water level electrode (208) is located below the paraffin layer (2012).

7. The paraffin-coated open thermal storage heating system according to claim 1, characterized in that: Three temperature sensors (209) are installed on the right inner side surface of the open-type hot water storage tank (2), and a heating element (2010) is installed at the lower end inside the open-type hot water storage tank (2).

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