Steam generator
By setting up a preheating chamber in the steam generator and preheating the water with the waste heat of the heating chamber, the problem of flue gas heat loss is solved, and the reuse of heat and fuel saving is achieved.
Patent Information
- Application Number
- CN202422466999.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-12
AI Technical Summary
The flue gas discharged from existing steam generators still contains high heat during use, resulting in serious heat loss and increasing fuel consumption.
A preheating chamber is set up in the steam generator, and the water is preheated using the waste heat discharged from the heating chamber. The preheated water is input into the heating chamber through the heating tube to reuse the heat and reduce the flue gas discharge temperature.
Through the design of the preheating chamber, heat loss is reduced, water temperature rise is increased, fuel consumption is reduced, and production costs are saved.
Smart Images
Figure CN223191588U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating equipment, in particular to a steam generator. Background Art
[0002] A steam generator, also known as a steam heat source, is a mechanical device that uses the thermal energy of fuel or other energy sources to heat water into hot water or steam. Based on the fuel used, steam generators can be categorized as electromagnetic, electric, oil-fired, or gas-fired. They are primarily used in restaurants, steamed bun shops, canteens, canteens, and soy product factories.
[0003] Existing steam generators still emit high levels of heat, typically over 100 degrees Celsius, during use. Directly discharging the flue gas results in excessive heat loss and increased fuel consumption. Therefore, a steam generator that can reuse heat and reduce heat loss is urgently needed. Utility Model Content
[0004] The purpose of the utility model is to provide a steam generator that can reuse heat, lower the temperature of smoke when it is discharged, reduce heat loss and fuel consumption, and save costs.
[0005] The utility model adopts the following technical solutions:
[0006] A steam generator comprises a heating chamber, a preheating chamber to which heat can be transferred is provided on the top of the heating chamber, a liquid inlet and a liquid outlet are respectively provided on the preheating chamber, and the liquid outlet is connected to a water tank provided on one side of the heating chamber; the water tank is connected to the heating chamber, and a connecting pipe is also provided between the water tank and the heating chamber; a discharge hole is formed on the top of the preheating chamber, and a steam discharge port is provided on one side of the top of the heating chamber.
[0007] Preferably, heating tubes are provided in both the heating chamber and the preheating chamber, wherein the heating tubes in the heating chamber and the preheating chamber are connected to each other; the discharge hole is connected to the heating tube in the preheating chamber; and a guide hole connected to the heating tube is provided at the bottom of the heating chamber.
[0008] Preferably, the heating tubes are arranged at intervals along the circumferential direction of the heating chamber and the preheating chamber.
[0009] Preferably, the heating tubes are in a circularly coiled curved structure, and two adjacent heating tubes are arranged alternately in height.
[0010] Preferably, a transparent observation port is provided on the heating chamber.
[0011] Preferably, a sewage outlet is provided on one side of the bottom of the heating chamber.
[0012] Preferably, an inspection port is provided on the heating chamber, and a detachable sealing plate is provided at the inspection port.
[0013] Preferably, a fire viewing port is provided on one side of the bottom of the heating chamber below the guide hole.
[0014] Preferably, a water level probe and a pressure switch are provided on the top of the water tank.
[0015] Preferably, the liquid inlet is arranged at the lower part of the preheating chamber, and the liquid outlet is arranged at the upper part of the preheating chamber.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a preheating chamber on the top of the heating chamber and connecting the liquid outlet of the preheating chamber with the water tank, the water to be heated can be first introduced into the preheating chamber, and the waste heat discharged from the heating chamber is used to preheat the water input into the preheating chamber, thereby realizing the reuse of heat and reducing heat loss. Subsequently, the preheated water is input into the heating chamber again through the water tank, thereby increasing the temperature of the water entering the heating chamber, thereby realizing a rapid increase in water temperature, reducing fuel consumption, and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic structural diagram of an embodiment of the present application;
[0018] Figure 2 This is a schematic diagram of the structure of the preheating chamber in an embodiment of the present application;
[0019] Figure 3 This is a schematic diagram of the structure of the embodiment of the present application when installed and used. DETAILED DESCRIPTION
[0020] The following is a clear and complete description of the present invention with reference to the accompanying drawings and embodiments:
[0021] like Figures 1 to 3As shown, a steam generator described in the present invention includes a heating chamber 1, a preheating chamber 2 is provided on the top of the heating chamber 1, heat can be transferred between the preheating chamber 2 and the heating chamber 1, and a liquid inlet 3 and a liquid outlet 4 are respectively provided on the preheating chamber 2 for input and output of water to realize the preheating operation of water in the preheating chamber 2, wherein the liquid inlet 3 is preferably arranged at the lower part of the preheating chamber 2, and the liquid outlet 4 is arranged at the upper part of the preheating chamber 2 to extend the time of water in the preheating chamber 2 and improve the preheating effect of water. The liquid outlet 4 is connected to the water tank 5 arranged on one side of the heating chamber 1. A pipe is provided at the bottom of the water tank 5, and the pipe is connected to the heating chamber 1 so that water can be added to the heating chamber 1 through the water tank 5. A water level probe 6 and a pressure switch 7 are provided on the top of the water tank 5, so that the amount of water in the water tank 5 can be intuitively understood during use, and the water flow can be replenished according to the pressure in the water tank; in addition, a connecting pipe 8 is also provided between the water tank 5 and the heating chamber 1, and the two ends of the connecting pipe 8 are respectively located at the top of the water tank 5 and one side of the top of the heating chamber 1, which are used to balance the pressure difference between the heating chamber 1 and the water tank 5, ensuring that the water flow in the water tank 5 smoothly enters the heating chamber 1; a discharge hole 9 is formed on the top of the preheating chamber 2 for discharging the smoke after heating; a steam discharge port 10 is provided on one side of the top of the heating chamber 1 for conveying the heated steam.
[0022] Furthermore, heating tubes 11 are provided in both the heating chamber 1 and the preheating chamber 2, wherein the heating tubes 11 in the heating chamber 1 and the preheating chamber 2 are connected to each other to achieve heat transfer between the heating chamber 1 and the preheating chamber 2; the discharge hole 9 is connected to the heating tube 11 in the preheating chamber 2; a guide hole connected to the heating tube 11 is provided at the bottom of the heating chamber 1, so that under the action of the heat source, heat enters the heating tube 11 to heat the water filled in the heating chamber 1 and the preheating chamber 2 respectively. Specifically, in this embodiment, guide seats 12 are provided at the upper and lower ends of the heating chamber 1 and the preheating chamber 2. The guide seats 12 are as shown in FIG. Figure 2 As shown, the guide seat 12 is sealed inside. Taking the guide seat 12 located at the upper part as an example, the guide hole or the discharge hole 9 is opened on the side wall above the sealing surface 13. If the guide seat 12 is located at the bottom, the guide hole is opened on the side wall of the guide seat 12 below the sealing surface 13. Under the premise of ensuring that the heating tube 11 between the preheating chamber 2 and the heating chamber 1 is connected, the preheating chamber 2 and the heating chamber 1 are not connected to each other, thereby realizing the preheating operation of the preheating chamber 2 on the water and the further heating operation of the heating chamber 1 on the water.
[0023] Furthermore, the heating tubes 11 are spaced apart circumferentially along the heating chamber 1 and preheating chamber 2 to ensure uniform heat transfer. Preferably, the heating tubes 11 are arranged in a circular, coiled, curved structure, with adjacent heating tubes 11 arranged alternately high and low. This extends the heat transfer path, increases the contact time between heat and water, improves heat utilization, and reduces heat loss.
[0024] Furthermore, in this embodiment, a transparent observation port 14 is provided on the heating chamber 1 to facilitate observation of the water level inside the heating chamber 1. A sewage outlet 15 is provided on one side of the bottom of the heating chamber 1 for discharging cleaning materials from the interior of the heating chamber 1. In addition, an inspection port 16 is provided on the heating chamber 1, and a clamp 17 is provided at the inspection port. A sealing plate 18 is provided inside the clamp 17 to seal the inspection port 16. The inspection port 16 facilitates inspection and maintenance of the interior of the heating chamber 1. A fire viewing port 19 is provided on one side of the bottom of the heating chamber 1 below the diversion hole for observing the fire situation during operation.
[0025] When the utility model is used, first place the evaporator as Figure 3 Installed in the shell 20 above the burner 22, as the burner burns, the flame will enter the heating tube 11 from the guide hole below the sealing surface 13 at the bottom of the heating chamber 1. At this time, the heating tube 11 will heat the water added to the heating chamber 1, and the steam after heating will be output from the steam discharge port 10 on one side of the heating chamber 1; the waste heat in the heating chamber 1 enters the preheating chamber 2 through the heating tube 11, and heats the water input into the preheating chamber 2. The preheated water flows through the water tank 5 and is input into the heating chamber 1. Since the temperature of the water increases after preheating, it will heat up rapidly when heated in the heating chamber 1, thereby improving the steam output efficiency and reducing the fuel consumption; finally, the flue gas discharged from the preheating chamber 2 is extracted and discharged through the fan 21. At this time, the heat in the flue gas has been greatly reduced, effectively reducing the heat loss.
Claims
1. A steam generator, characterized in that: It includes a heating chamber, a preheating chamber is provided on the top of the heating chamber, and heat can be transferred to each other. The preheating chamber is respectively provided with a liquid inlet and a liquid outlet, and the liquid outlet is connected to a water tank provided on one side of the heating chamber; the water tank is connected to the heating chamber, and a connecting pipe is also provided between the water tank and the heating chamber; a discharge hole is formed on the top of the preheating chamber, and a steam discharge port is provided on one side of the top of the heating chamber.
2. The steam generator according to claim 1, characterized in that: The heating chamber and the preheating chamber are both provided with heating tubes, wherein the heating chamber and the heating tubes in the preheating chamber are connected to each other; the discharge hole is connected to the heating tube in the preheating chamber; and a guide hole connected to the heating tube is provided at the bottom of the heating chamber.
3. The steam generator according to claim 2, characterized in that: The heating tubes are arranged at intervals along the circumferential direction of the heating chamber and the preheating chamber.
4. The steam generator according to claim 3, characterized in that: The heating tubes are in a circularly coiled curved structure, and two adjacent heating tubes are arranged alternately in height.
5. The steam generator according to claim 1, characterized in that: The heating chamber is provided with a transparent observation port.
6. The steam generator according to claim 1, characterized in that: A sewage outlet is provided on one side of the bottom of the heating chamber.
7. The steam generator according to claim 1, characterized in that: The heating chamber is provided with an inspection port, and a detachable sealing plate is provided at the inspection port.
8. The steam generator according to claim 2, characterized in that: A fire viewing port is provided on one side of the bottom of the heating chamber below the guide hole.
9. The steam generator according to claim 1, characterized in that: The top of the water tank is provided with a water level probe and a pressure switch.
10. The steam generator according to claim 1, characterized in that: The liquid inlet is arranged at the lower part of the preheating chamber, and the liquid outlet is arranged at the upper part of the preheating chamber.