Full-protection type large-pipe energy-saving heating system

Abstract

The utility model discloses a full-protection type large-pipe energy-saving heating system, which belongs to the technical field of energy-saving heating and comprises a burner, a heat supply end and a waste gas exhaust end are arranged on the burner, the heat supply end is connected with a radiation pipeline so as to heat the interior of a workshop, and the waste gas exhaust end is connected with a recovery pipeline. And high-temperature waste gas in the combustor exchanges heat in the workshop through the recovery pipeline to heat the interior of the workshop again. According to the utility model, the heat of the exhaust gas of the combustor is recycled, and hot air generated by the heat exchanger is blown into the workshop, so that the heat recovery rate is greatly improved, the energy is saved, the environment is protected, and the waste of heat in the exhaust gas is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy-saving heating, and in particular relates to a fully protected large-tube energy-saving heating system. Background Art

[0002] In the 1960s, in order to solve the problem of heating some large spaces and seek a clean, environmentally friendly and energy-saving heating method, some European and American countries have developed products that use hot water, steam, gas and electricity as energy and convert them into radiation energy for heating with special equipment. Therefore, radiant heating products have appeared. This is what we call hot water radiation or steam radiation heating system, gas radiation heating system and electric radiation heating system.

[0003] Gas infrared (radiation) heating products mainly consist of the following parts: heat energy generating device (burner or generator), heat radiation plate or tube (radiation tube), exhaust fan (smoke exhaust fan or vacuum pump) and temperature control equipment (temperature control box).

[0004] The improvement and development of gas infrared (radiant) heating products have undergone the following updates and upgrades:

[0005] (1) High-intensity open flame radiant heater, the structure is plate-type, the burner and radiation plate are compactly arranged, it is open flame heating, the heat from gas combustion excites the ceramic plate to produce near infrared rays, the surface is red, the surface temperature exceeds 700℃, the safety is poor, it can be used for general non-enclosed environment or workshop outdoor heating.

[0006] (2) Positive pressure single-body radiant heater, the structure is tube-sheet type. Since the exhaust fan of this heater is installed on one side of the burner to provide fresh air and exhaust pressure, the air pressure inside the radiant tube is higher than the air pressure outside the tube, which is called positive pressure. However, the system is simple to ignite and is not very safe. It can be used for heating in general environments and outdoor environments of workshops.

[0007] (3) Negative pressure single-unit radiant heater, the structure is still tube plate type, but there are linear (single tube) and U-shaped tube. The exhaust fan of this heater is installed at the end of the radiant tube, which not only provides fresh air for combustion but also provides exhaust suction. Therefore, the air pressure inside the radiant tube is lower than the air pressure outside the tube, which is called negative pressure. Due to the large number of layout points, the indoor layout of the burner workshop, the gas supply is complicated, and the fire safety is poor. The control, installation, inspection and maintenance are complicated, so it is more reasonable to use it in some places with small areas.

[0008] (4) Negative pressure parallel or continuous radiant heating system, the structure is still tube plate type, multiple burners can be connected in parallel or in series with radiant tubes, a large smoke exhaust fan drives the entire pipe system, and a set of temperature controller is added to control it. However, this system also has the problems of small burner power, indoor layout of burner workshop, complex gas supply and poor fire safety.

[0009] Therefore, it is urgent to design a fully protected large-tube energy-saving heating system to solve the above-mentioned problems. Utility Model Content

[0010] The purpose of the utility model is to provide a fully protected large-tube energy-saving heating system, which has the advantages of recycling exhaust gas, energy saving and environmental protection, and solves the problems mentioned in the background technology.

[0011] To achieve the above purpose, the specific technical scheme of the fully protected large-tube energy-saving heating system of the utility model is as follows:

[0012] The fully protected large-tube energy-saving heating system includes a burner. The burner is provided with a heating end and an exhaust gas end. The heating end is connected to a radiation pipeline to heat the workshop room, and the exhaust gas end is connected to a recovery pipeline. The high-temperature exhaust gas in the burner is heat exchanged in the workshop room through the recovery pipeline to heat the workshop room again.

[0013] Furthermore, the burner is arranged on the wall outside the workshop, and the burner is located at the opposite end of the workshop away from the doors and windows.

[0014] Furthermore, the radiation pipeline includes a first connecting pipe and a heating pipe. The first connecting pipe is connected to the heating end of the burner. The end of the first connecting pipe away from the burner extends from outside the workshop to inside the workshop. The end of the first connecting pipe extending into the workshop is fixedly connected to the heating pipe, and the heating pipe is fixedly connected to the wall inside the workshop.

[0015] Furthermore, a heat exchanger is provided on the recovery pipeline, the heat exchanger is located in the workshop, the heat exchanger is fixedly connected to the wall, and the heat exchanger and the burner are respectively located at two ends of the wall.

[0016] Furthermore, it also includes a fan, the exhaust end of the fan is directed toward the heat exchanger to blow the high-temperature air at the heat exchanger to various places in the workshop.

[0017] Furthermore, the recovery pipeline includes a second connecting pipe, a heat exchange pipe and a discharge pipe. The second connecting pipe is connected to the exhaust gas end of the burner. The end of the second connecting pipe away from the burner extends from outside the workshop to inside the workshop. The end of the second connecting pipe extending into the workshop is fixedly connected to the heat exchange pipe. The heat exchange pipe is fixedly connected to the wall. The heat exchange pipe and the burner are respectively located at two ends of the wall. A heat exchanger is connected to the heat exchange pipe. The end of the heat exchange pipe away from the second connecting pipe is fixedly connected to the discharge pipe. The end of the discharge pipe away from the heat exchange pipe extends to outside the workshop to discharge the exhaust gas after the heat exchange is completed.

[0018] Furthermore, it also includes an automatic fire extinguisher arranged outside the workshop, the discharge end of the automatic fire extinguisher is connected with a fire extinguishing pipe, the burner is provided with a fire extinguishing end, and the fire extinguishing pipe is connected with the fire extinguishing end of the burner.

[0019] Furthermore, a fuel inlet end is provided on the burner, a feed pipe is connected to the fuel inlet end of the burner, and an emergency shut-off valve is provided on the feed pipe to control whether the feed pipe is connected to the fuel chamber.

[0020] Furthermore, the burner is provided with a flame detector, which is electrically connected to the automatic fire extinguisher and the emergency shut-off valve respectively. The burner is provided with a leakage monitor and a temperature detector, which are both electrically connected to the emergency shut-off valve. A pressure monitor is provided on the fuel inlet end of the burner, which is electrically connected to the emergency shut-off valve.

[0021] Furthermore, it also includes an audible and visual alarm, which is electrically connected to the flame detector, the leakage monitor, the temperature detector and the pressure monitor respectively.

[0022] The utility model has the following advantages:

[0023] (1) By recovering the exhaust gas from the burner, the hot air generated by the heat exchanger is blown into the workshop, which greatly improves the heat recovery rate, saves energy and protects the environment, and avoids the waste of heat in the exhaust gas.

[0024] (2) Fire hazards are monitored in all directions through flame detectors, leakage monitors, temperature detectors and pressure monitors, and emergency shut-off valves are linked to activate automatic fire extinguishers to prevent fires. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the radiation pipeline and the burner of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the recovery pipeline and the burner of the utility model;

[0027] Figure 3It is a schematic diagram of the structure of the flame detector, leakage monitor, leakage monitor and pressure monitor of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the automatic fire extinguisher and the fire extinguishing pipe of the utility model;

[0029] Explanation of the markings in the figure: 1. Burner; 11. Outdoor of the workshop; 12. Indoor of the workshop; 13. Wall; 2. Recovery pipeline; 21. Second connecting pipe; 22. Heat exchange pipe; 23. Discharge pipe; 24. Heat exchanger; 3. Radiation pipeline; 31. First connecting pipe; 32. Heating pipe; 41. Flame detector; 42. Temperature detector; 43. Leakage monitor; 44. Pressure monitor; 45. Emergency shut-off valve; 46. Feed pipe; 47. Sound and light alarm; 5. Automatic fire extinguisher; 51. Fire extinguishing pipe. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0031] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0032] Please refer to the attached Figure 1 To Attachment Figure 4 The utility model describes a fully protected large-tube energy-saving heating system.

[0033] At present, the existing negative pressure parallel or continuous radiant heating system still has a tube-sheet structure. Multiple burners can be connected in parallel or in series using radiant tubes, and a large smoke exhaust fan can drive the entire piping system, plus a set of temperature controllers. However, this system also has problems such as low burner power, indoor layout of the burner workshop, complex gas supply, and poor fire safety.

[0034] like Figure 1 and Figure 2As shown in the figure, the radiant heating system includes a burner 1 installed outdoors in the workshop 11. By installing the burner 1 outdoors in the workshop 11, the gas supply does not need to enter the indoor workshop 12, thus greatly improving the fire safety. The burner 1 is equipped with an exhaust fan, and the burner 1 is integrated with the exhaust fan. Therefore, the circuit control, debugging, and maintenance are all concentrated here, saving a lot of trouble.

[0035] The burner 1 is provided with a heat supply end, and the heat supply end is connected with a radiation pipeline 3 to heat the indoor workshop 12.

[0036] The radiation pipeline 3 includes a first connecting pipe 31 and a heat supply pipe 32. The first connecting pipe 31 is connected to the heat supply end of the burner 1. One end of the first connecting pipe 31 away from the burner 1 extends from the outdoor workshop 11 to the indoor workshop 12. The end of the first connecting pipe 31 extending into the indoor workshop 12 is fixedly connected to the heat supply pipe 32, so that the heat enters the first connecting pipe 31 from the heat supply end of the burner 1, and then enters the heat supply pipe 32 to heat the indoor workshop 12.

[0037] Regarding the fixed position of the heat supply pipe, preferably, the heat supply pipe is fixed on the wall of the indoor workshop 12. In other embodiments of the present invention, the heat supply pipe can also be fixed on the roof of the indoor workshop 12.

[0038] Preferably, the heat supply pipe 32 can be arranged in a "mouth" shape along the contour of the indoor workshop 12 in the indoor workshop 12. In other embodiments of the present invention, the heat supply pipe 32 can also be arranged in a "冂" shape along the contour of the indoor workshop 12. As long as the heat supply efficiency of the heat supply pipe 32 to the indoor workshop 12 can be ensured, the specific shape of the heat supply pipe 32 can be determined according to the actual situation.

[0039] By installing the burner 1 outdoors in the workshop 11 and there being only radiation pipes in the indoor workshop 12, the fire safety in the indoor workshop 12 is greatly improved. Preferably, the burner 1 is located at the opposite end of the workshop far from the doors and windows, further ensuring the fire safety. In other embodiments of the present invention, the burner 1 can also be installed at one end of the workshop doors and windows.

[0040] The burner 1 is provided with an exhaust gas end, and the exhaust gas end is connected with a recovery pipeline 2. The high-temperature exhaust gas in the burner 1 exchanges heat in the indoor workshop 12 through the recovery pipeline 2 to heat the indoor workshop 12 again. A heat exchanger 24 is provided on the recovery pipeline 2. The heat exchanger 24 is located in the indoor workshop 12. It also includes a fan, and the exhaust end of the fan faces the heat exchanger 24 to blow the high-temperature air at the heat exchanger 24 to各处 of the indoor workshop 12.

[0041] Preferably, the heat exchanger 24 and the burner 1 are respectively located at both ends of the wall 13, so that when the high-temperature exhaust gas of the burner 1 is transported to the heat exchanger 24, the heat loss is small.

[0042] The recovery pipeline 2 includes a second connecting pipe 21, a heat exchange pipe 22 and an exhaust pipe 23. The second connecting pipe 21 is connected to the exhaust gas end of the burner 1. The end of the second connecting pipe 21 away from the burner 1 extends from the outside of the workshop 11 to the inside of the workshop 12. The end of the second connecting pipe 21 extending to the inside of the workshop 12 is fixedly connected to the heat exchange pipe 22. A heat exchanger 24 is connected to the heat exchange pipe 22. The end of the heat exchange pipe 22 away from the second connecting pipe 21 is fixedly connected to the exhaust pipe 23. The end of the exhaust pipe 23 away from the heat exchange pipe 22 extends to the outside of the workshop 11. The exhaust gas generated by the burner 1 enters the second connecting pipe 21 through the exhaust gas end, and then enters the heat exchange pipe 22. The heat exchanger 24 on the heat exchange pipe 22 exchanges the heat of the exhaust gas, and then is sent into various places in the workshop 12 by the fan. The exhaust gas after the heat exchange is discharged to the outside of the workshop 11 through the exhaust pipe 23.

[0043] Preferably, the heat exchange tube 22 is fixedly connected to the wall 13, and the heat exchange tube 22 and the burner 1 are respectively located at both ends of the wall 13, so that the length of the second connecting tube 21 is shorter, so that the high-temperature exhaust gas of the burner 1 can be quickly transported to the heat exchanger 24, thereby improving the heat recovery efficiency.

[0044] Preferably, the heating system may also be provided with a temperature control system, and the fan may be automatically started according to the set temperature of the temperature control system.

[0045] When the equipment is running, the exhaust temperature is above 100 degrees. The exhaust volume of each equipment is 3000m³ / h. When the temperature is 30 degrees, the exhaust volume of each equipment is 10000m³ per hour, and ten equipments exhaust 10000m³ of hot air per hour. This is equivalent to a workshop with an area of ​​10000㎡ and a height of 10 meters. The hot air at 30 degrees is ventilated once every hour. Therefore, the exhaust gas at a temperature of 100 degrees is sent to the workshop room 12 through the heat exchanger 24, and then the exhaust gas discharged from the workshop outdoor 11 through the exhaust pipe 23 is about 30 degrees. Therefore, the temperature difference of about 70 degrees is used in the workshop room 12, making the heat recovery utilization rate about 70%.

[0046] like Figure 3 and Figure 4 As shown, a fuel inlet end is provided on the burner 1, and a feed pipe 46 is connected to the fuel inlet end of the burner 1. One end of the feed pipe 46 away from the burner 1 is connected to an external fuel supply mechanism, so that the fuel can be transported to the burner 1 through the feed pipe 46 by the external fuel supply mechanism.

[0047] An emergency shut-off valve 45 is provided on the feed pipe 46, and whether the feed pipe 46 is connected to the fuel chamber is controlled by opening and closing the emergency shut-off valve 45.

[0048] Preferably, the emergency shut-off valve 45 is installed at the connection between the feed pipe 46 and the fuel inlet end of the burner 1. Since a fire is generally caused by gas, the gas should be cut off immediately. Once a fire occurs, no matter when personnel discover it, there will be residual gas in the pipeline after closing the main valve. The residual gas is sufficient to support the flame to continue burning for a long time. The emergency shut-off valve is installed at the connection between the feed pipe 46 and the fuel inlet end of the burner 1. There is almost no gas residue in the burner, which further ensures safety.

[0049] The radiant heating system also includes an automatic fire extinguisher 5 arranged outside the workshop 11. The automatic fire extinguisher 5 is located directly below the burner 1. The discharge end of the automatic fire extinguisher 5 is connected to a fire extinguishing pipe 51. The burner 1 is provided with a fire extinguishing end. The fire extinguishing pipe 51 is connected to the fire extinguishing end of the burner 1. When the flame of the burner 1 overflows, the automatic fire extinguisher 5 is activated to extinguish the flame through the fire extinguishing pipe 51.

[0050] Regarding the position of the automatic fire extinguisher 5, it is preferably located outside the workshop room 11 and directly below the burner 1. In other embodiments of the utility model, it can also be located inside the workshop room 12 and at any position near the burner 1, as long as it can quickly extinguish the burner 1.

[0051] Preferably, the fire extinguishing pipe 51 is arranged along the wall 13 outside the workshop 11 .

[0052] The radiant heating system also includes an audible and visual alarm 47. When an abnormality occurs in the burner 1, the audible and visual alarm 47 sends out an audible and visual alarm. After the staff receives the audible and visual alarm from the host, they check for hidden dangers and can restore to the initial state only after the hidden dangers are eliminated.

[0053] A flame detector 41 is provided on the burner 1, and the flame detector 41 is electrically connected to the emergency shut-off valve 45, the automatic fire extinguisher 5 and the sound and light alarm 47 respectively. When the flame detector 41 detects flame overflow, the flame detector 41 transmits the signal to the emergency shut-off valve 45, the automatic fire extinguisher 5 and the sound and light alarm 47 respectively, and then the emergency shut-off valve 45 is started, and the feed pipe 46 and the fuel inlet end of the burner 1 are cut off through the emergency shut-off valve 45, so that the feed pipe 46 and the burner 1 are disconnected; the automatic fire extinguisher 5 is started, and the flame is extinguished through the automatic fire extinguisher 5, and the sound and light alarm 47 is started, and a sound and light alarm is issued through the sound and light alarm 47.

[0054] A leakage monitor 43 is provided on the burner 1, and the leakage monitor 43 is electrically connected to the emergency shut-off valve 45 and the sound and light alarm 47 respectively. When the leakage monitor 43 detects gas leakage, the leakage monitor 43 transmits the signal to the emergency shut-off valve 45 and the sound and light alarm 47 respectively, and then the emergency shut-off valve 45 is started, and the feed pipe 46 and the fuel inlet end of the burner 1 are cut off through the emergency shut-off valve 45, so that the feed pipe 46 and the burner 1 are disconnected; and the sound and light alarm 47 is started, and a sound and light alarm is issued through the sound and light alarm 47.

[0055] A temperature detector 42 is provided on the burner 1, and the temperature detector 42 is electrically connected to the emergency shut-off valve 45 and the sound and light alarm 47 respectively. When the temperature detector 42 detects abnormal temperature, the temperature detector 42 transmits the signal to the emergency shut-off valve 45 and the sound and light alarm 47 respectively, and then the emergency shut-off valve 45 is started, and the feed pipe 46 and the fuel inlet end of the burner 1 are cut off through the emergency shut-off valve 45, so that the feed pipe 46 and the burner 1 are disconnected; and the sound and light alarm 47 is started, and a sound and light alarm is issued through the sound and light alarm 47.

[0056] A pressure monitor 44 is provided on the burner 1, and the pressure monitor 44 is electrically connected to the emergency shut-off valve 45 and the sound and light alarm 47 respectively. When the pressure monitor 44 detects abnormal gas pressure, the pressure monitor 44 transmits the signal to the emergency shut-off valve 45 and the sound and light alarm 47 respectively, and then the emergency shut-off valve 45 is started, and the feed pipe 46 and the fuel inlet end of the burner 1 are cut off through the emergency shut-off valve 45, so that the feed pipe 46 and the burner 1 are disconnected; and the sound and light alarm 47 is started, and a sound and light alarm is issued through the sound and light alarm 47.

[0057] Preferably, the pressure sensor is installed at the end of the burner 1, so as to monitor whether there is any leakage problem in the entire gas pipeline.

[0058] The utility model monitors the fire hazard in all directions through the flame detector 41, the leakage monitor 43, the temperature detector 42 and the pressure monitor 44, and links the emergency shut-off valve 45, and can also activate the automatic fire extinguisher 5 to prevent the occurrence of fire. At the same time, it can automatically inspect in real time, reflect the data to the duty room, and can also transmit it wirelessly to the mobile phone or the network, reducing the manual inspection work and saving manpower.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Fully protected large-tube energy-saving heating system, characterized by: The burner comprises a heat supply end and an exhaust gas end. The heat supply end is connected to a radiation pipeline to heat the workshop. The exhaust gas end is connected to a recovery pipeline. The high-temperature exhaust gas in the burner is heat-exchanged in the workshop through the recovery pipeline to heat the workshop again. The burner is arranged on the wall outside the workshop. The radiation pipeline includes a first connecting pipe and a heating pipe, the first connecting pipe is connected to the heating end of the burner, one end of the first connecting pipe away from the burner extends from outside the workshop to inside the workshop, one end of the first connecting pipe extending into the workshop is fixedly connected to the heating pipe, and the heating pipe is fixedly connected to the wall of the workshop; A heat exchanger is arranged on the recovery pipeline, the heat exchanger is located in the workshop, the heat exchanger is fixedly connected to the wall, and the heat exchanger and the burner are respectively located at two ends of the wall.

2. The fully protected large-tube energy-saving heating system according to claim 1 is characterized in that: The burner is located at the opposite end of the workshop away from the doors and windows.

3. The fully protected large-tube energy-saving heating system according to claim 1 is characterized in that: The machine also includes a fan, wherein the exhaust end of the fan faces the heat exchanger so as to blow the high-temperature air at the heat exchanger to various places in the workshop.

4. The fully protected large-tube energy-saving heating system according to claim 1 is characterized in that: The recovery pipeline includes a second connecting pipe, a heat exchange pipe and a discharge pipe. The second connecting pipe is connected to the exhaust gas end of the burner. The end of the second connecting pipe away from the burner extends from outside the workshop to inside the workshop. The end of the second connecting pipe extending into the workshop is fixedly connected to the heat exchange pipe. The heat exchange pipe is fixedly connected to the wall. The heat exchange pipe and the burner are respectively located at two ends of the wall. A heat exchanger is connected to the heat exchange pipe. The end of the heat exchange pipe away from the second connecting pipe is fixedly connected to the discharge pipe. The end of the discharge pipe away from the heat exchange pipe extends to outside the workshop to discharge the exhaust gas after the heat exchange is completed.

5. The fully protected large-tube energy-saving heating system according to claim 1 is characterized in that: It also includes an automatic fire extinguisher arranged outside the workshop, the discharge end of the automatic fire extinguisher is connected with a fire extinguishing pipe, the burner is provided with a fire extinguishing end, the fire extinguishing pipe is connected with the fire extinguishing end of the burner, and the automatic fire extinguisher is located directly below the burner.

6. The fully protected large-tube energy-saving heating system according to claim 5 is characterized in that: The burner is provided with a fuel inlet end, the fuel inlet end of the burner is connected with a feed pipe, and the feed pipe is provided with an emergency cut-off valve to control whether the feed pipe is connected with the fuel chamber.

7. The fully protected large-tube energy-saving heating system according to claim 6 is characterized in that: The burner is provided with a flame detector, which is electrically connected to the automatic fire extinguisher and the emergency shut-off valve respectively. The burner is provided with a leakage monitor and a temperature detector, which are both electrically connected to the emergency shut-off valve. A pressure monitor is provided on the fuel inlet end of the burner, which is electrically connected to the emergency shut-off valve.

8. The fully protected large-tube energy-saving heating system according to claim 7 is characterized in that: It also includes an audible and visual alarm, which is electrically connected to the flame detector, the leakage monitor, the temperature detector and the pressure monitor respectively.

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