CN210861036U - Full-premixing steam boiler - Google Patents
Full-premixing steam boiler Download PDFInfo
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- CN210861036U CN210861036U CN201921689644.0U CN201921689644U CN210861036U CN 210861036 U CN210861036 U CN 210861036U CN 201921689644 U CN201921689644 U CN 201921689644U CN 210861036 U CN210861036 U CN 210861036U
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Abstract
The utility model discloses a full premix steam boiler, including holding water box, inner bag heat exchanger and cold and hot heat exchanger, holding water box is connected to the one end of inner bag heat exchanger, and cold and hot heat exchanger is connected to the other end, holding water box bottom is through the bottom one end that pipeline connects inner bag heat exchanger, and still installs first moisturizing pump on the pipeline. The premixed steam furnace not only can produce steam for use, but also can recycle energy in work, preheat cold water and fully utilize heat in tail gas. Meanwhile, the water level in the liner heat exchanger and the heat-preservation water tank can be kept within a normal use range in the working process, the water quantity can be kept sufficient in the working process, and the steam generation quantity is stable. Meanwhile, the inner container heat exchanger is not easy to damage, and the service life is prolonged. The working state of the burner can be adjusted according to the pressure of the steam, the waste of energy sources is avoided, and the use cost is saved.
Description
Technical Field
The utility model relates to a steam boiler, concretely relates to full premix steam boiler belongs to steam boiler application.
Background
Steam has wide application in national production and living fields, such as rice steaming, steamed bread steaming, cooking, sauna, disinfection, beauty treatment and the like, and in production, such as chemical heating, washing and dyeing, pharmacy, building material production, food production and the like. In actual use, a fully premixed steam furnace is commonly used for producing steam.
However, the existing steam oven still has certain disadvantages in use. The existing steam furnace cannot ensure that the water level is in a proper range in use, cannot ensure sufficient water supplement, is easy to generate water shortage phenomenon, easily causes damage to a heater and a heat exchanger after water shortage, and has short service life and poor safety performance. Meanwhile, the using amount of the fuel gas cannot be well controlled in use, so that waste of the fuel gas in use is easily caused, and the use cost is high. The failure to recycle the heat in the exhaust gas during use easily results in excessive energy consumption.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a full premix steam stove can solve current steam stove in use and can't guarantee the water level in suitable within range, can not guarantee that the moisturizing is sufficient, produces the hydropenia easily, easily leads to heater and heat exchanger to damage behind the hydropenia, and life is short, and the security performance is not good. Meanwhile, the using amount of the fuel gas cannot be well controlled in use, so that waste of the fuel gas in use is easily caused, and the use cost is high. The technical problem of excessive energy consumption is easily caused by the fact that heat in the waste gas cannot be recycled in use.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a full premix steam boiler, includes holding water box, inner bag heat exchanger and cold and hot heat exchanger, holding water box is connected to the one end of inner bag heat exchanger, and cold and hot heat exchanger is connected to the other end, holding water box bottom is through the bottom one end of pipeline connection inner bag heat exchanger, just pipeline's internally mounted has the check valve, and the check valve circulation direction is towards the inner bag heat exchanger, and still installs a moisturizing pump on the pipeline.
A combustor is arranged in the inner container heat exchanger, and the exhaust end of the combustor is connected with the cold-heat exchanger through an exhaust pipe; the heat-preservation water tank is characterized in that the other end of the bottom of the heat-preservation water tank is connected with a circulating pipe, the other end of the circulating pipe is connected with a bottom water inlet of the cold-heat exchanger, a water outlet in the top of the cold-heat exchanger is connected with the top of the heat-preservation water tank through the circulating pipe, the circulating pipe is communicated with the inside of the heat-preservation water tank, and a cold water circulating pump is installed on the circulating.
The top of the liner heat exchanger is connected with a steam discharge pipe in a penetrating manner, the bottom of the steam discharge pipe is provided with a pressure switch, and a pressure sensor is arranged in the steam discharge pipe on the upper part of the pressure switch.
A first water level measuring device and a second water level measuring device are respectively installed on one side of the inner container heat exchanger and one side of the heat preservation water tank, the first water level measuring device and the second water level measuring device are both connected with two groups of water level measuring sensors, and the two groups of water level measuring sensors are respectively installed above and below the inner container heat exchanger and above and below the heat preservation water tank.
Preferably, the upper part of the combustor is connected with an air inlet pipe, and an air inlet pump is installed at the joint of the air inlet pipe and the combustor.
Preferably, a temperature probe is installed inside the upper portion of the steam discharge pipe.
Preferably, one side of the heat preservation water tank is connected with a water inlet pipe, and a second water replenishing pump is installed on the water inlet pipe.
Preferably, the first water replenishing pump, the second water replenishing pump, the cold water circulating pump, the air inlet pump and the combustor are electrically connected with the PLC.
The utility model has the advantages that:
the premixed steam furnace not only can produce steam for use, but also can recycle energy in work, preheat cold water and fully utilize heat in tail gas. Meanwhile, the water level in the liner heat exchanger and the heat-preservation water tank can be kept within a normal use range in the working process, the water quantity can be kept sufficient in the working process, and the steam generation quantity is stable. Meanwhile, the inner container heat exchanger is not easy to damage, and the service life is prolonged. The working state of the burner can be adjusted according to the pressure of the steam, the waste of energy sources is avoided, and the use cost is saved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a heat preservation water tank; 2. a flow-through tube; 3. a cold water circulation pump; 4. a liner heat exchanger; 5. a cold-hot heat exchanger; 6. a burner; 7. an intake pump; 8. a pressure switch; 9. a pressure sensor; 10. a temperature probe; 11. a steam discharge pipe; 12. a gas pipe; 13. a first water level measuring device; 14. a one-way valve; 15. a first water replenishing pump; 16. a second water level measuring device; 17. a second water replenishing pump; 18. and (4) a water inlet pipe.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a fully premixed steam boiler comprises a heat preservation water tank 1, a liner heat exchanger 4 and a cold-heat exchanger 5, wherein one end of the liner heat exchanger 4 is connected with the heat preservation water tank 1, the other end of the liner heat exchanger is connected with the cold-heat exchanger 5, the bottom of the heat preservation water tank 1 is connected with one end of the bottom of the liner heat exchanger 4 through a conveying pipeline, a one-way valve 14 is arranged inside the conveying pipeline, the flowing direction of the one-way valve 14 faces to the liner heat exchanger 4, and a first water replenishing pump 15 is further arranged on the conveying;
a combustor 6 is arranged in the inner container heat exchanger 4, and the exhaust end of the combustor 6 is connected with a cold-heat exchanger 5 through an exhaust pipe; the other end of the bottom of the heat preservation water tank 1 is connected with a circulating pipe 2, the other end of the circulating pipe 2 is connected with a water inlet at the bottom of a cold-heat exchanger 5, a water outlet at the top of the cold-heat exchanger 5 is connected with the top of the heat preservation water tank 1 through the circulating pipe 2, the circulating pipe 2 is communicated with the interior of the heat preservation water tank 1, and a cold water circulating pump 3 is installed on the circulating pipe 2 at the bottom;
the top of the liner heat exchanger 4 is connected with a steam discharge pipe 11 in a penetrating way, the bottom of the steam discharge pipe 11 is provided with a pressure switch 8, and the inside of the steam discharge pipe 11 is provided with a pressure sensor 9 at the upper part of the pressure switch 8;
a first water level measuring device 13 and a second water level measuring device 16 are respectively installed on one side of the inner container heat exchanger 4 and one side of the heat preservation water tank 1, the first water level measuring device 13 and the second water level measuring device 16 are both connected with two sets of water level measuring sensors, and the two sets of water level measuring sensors are respectively installed above and below the inner container heat exchanger 4 and above and below the heat preservation water tank 1.
The upper portion of combustor 6 is connected with intake pipe 12, and intake pump 7 is installed to intake pipe 12 and the junction of combustor 6, and intake pump 7 can carry the inside of combustor 6 with the gas in the intake pipe 12, supplies combustor 6 normal work to use.
A temperature probe 10 is installed inside the upper portion of the steam discharge pipe 11, and the temperature probe 10 can detect the temperature of the steam.
One side of holding water box 1 is connected with inlet tube 18, and installs second moisturizing pump 17 on the inlet tube 18, and second moisturizing pump 17 can pass through inlet tube 18 and supply clean water to holding water box 1's inside.
First water supply pump 15, second water supply pump 17, cold water circulating pump 3, air intake pump 7 and combustor 6 all with PLC controller electric connection, PLC controller can control opening and stopping of first water supply pump 15, second water supply pump 17, cold water circulating pump 3, air intake pump 7 and combustor 6 at work.
The utility model discloses when using, with whole device and outside backstage control system electric connection, backstage control system can receive pressure switch 8, pressure sensor 9, temperature probe 10 and the data signal that water level measuring device detected in work, and backstage control system can send the instruction to the PLC controller, and then makes the work that the PLC controller can control spare part in the whole device open and stop.
After the whole device is electrified, the water level measuring sensors at the upper end and the lower end in the inner container heat exchanger 4 and the heat preservation water tank 1 respectively detect the water levels in the inner container heat exchanger 4 and the heat preservation water tank 1, and the positions of the water level measuring sensors at the upper end and the lower end are respectively set as the positions of the highest water level and the lowest water level. If the detection values of the water level measuring sensors at the lower parts of the liner heat exchanger 4 and the heat preservation water tank 1 are zero, the water level inside the liner heat exchanger is lower than the lowest water level. The first water replenishing pump 15 and the second water replenishing pump 17 are started to operate, clean water is replenished into the inner container heat exchanger 4 and the heat preservation water tank 1 respectively, and after the water level inside reaches the highest water level, the water level measuring sensor on the upper portion detects a water level value, a signal is transmitted to the background control system, and then the PLC controller controls the first water replenishing pump 15 and the second water replenishing pump 17 to stop operating.
The air intake pump 7 feeds the gas into the combustor 6 through the gas pipe 12, the combustor 6 starts normal operation, heats the water in the liner heat exchanger 4 to turn the water into steam, and the steam is discharged from the steam discharge pipe 11, so that the steam can be used. And when the inner container heat exchanger 4 works, the cold water circulating pump 3 runs to pump out the cold water in the heat preservation water tank 1 and then the cold water enters the cold-heat exchanger 5 through the circulating pipe 2. The exhaust gas discharged by the combustion of the burner 6 enters the inside of the cold-heat exchanger 5 from the exhaust pipe. The heat in the exhaust gas is absorbed by the cold water in the circulation pipe 2, the exhaust gas is finally discharged to the outside from the inside of the cold-heat exchanger 5, the temperature of the cold water rises, and the exhaust gas flows back into the inside of the hot water tank 1 from the circulation pipe 2 at the upper part. The heat of the waste gas is utilized, and the energy consumption is reduced. And the water in the heat preservation water tank 1 can be preheated, the speed of changing the water entering the inner container heat exchanger 4 into steam is accelerated, and the working efficiency is improved.
If the water level in the heat preservation water tank 1 is lower than the lowest water level during operation, the second water replenishing pump 17 replenishes clean water into the heat preservation water tank 1 through the water inlet pipe 18 until the water level in the heat preservation water tank reaches the highest water level, and the second water replenishing pump 17 stops working. If the water level in the liner heat exchanger 4 is lower than the lowest water level during operation, the first water replenishing pump 15 replenishes clean water into the liner heat exchanger 4 until the water level in the liner heat exchanger reaches the highest water level, and the first water replenishing pump 15 stops working. The intelligent control can carry out comprehensive control to inner bag heat exchanger 4 and holding water tank 1 inside for inside water level can be controlled in the safe range of setting for, and inner bag heat exchanger 4 is not fragile in the work, and inside hydroenergy obtains sufficient supply.
A steam standard value D in the steam discharge pipe 11 is preset during operation, and if the pressure sensor 9 detects that the pressure value of the steam is smaller than the standard value D during operation, the combustor 6 is started to operate, the water in the liner heat exchanger 4 is heated until the pressure value of the discharged steam reaches the standard value D. And a value F which is smaller than and close to the standard value D can be set during the work, if the steam pressure value discharged by the steam reaches F, the power of the air inlet pump is reduced, the air inflow is reduced, the power of the combustor 6 is reduced, the energy waste is avoided, and the combustor 6 stops working until the discharged steam pressure reaches the standard value D.
If the pressure value of the steam discharged in the work is larger than the standard value D, the pressure switch 8 transmits a signal to the background control system, so that the combustor 6 is forcibly closed to stop working, and the consumption of fuel gas is saved.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A full-premix steam boiler comprises a heat preservation water tank (1), a liner heat exchanger (4) and a cold-heat exchanger (5), and is characterized in that one end of the liner heat exchanger (4) is connected with the heat preservation water tank (1), the other end of the liner heat exchanger is connected with the cold-heat exchanger (5), the bottom of the heat preservation water tank (1) is connected with one end of the bottom of the liner heat exchanger (4) through a conveying pipeline, a one-way valve (14) is installed inside the conveying pipeline, the flowing direction of the one-way valve (14) faces to the liner heat exchanger (4), and a first water replenishing pump (15) is further installed on the conveying;
a combustor (6) is arranged in the inner container heat exchanger (4), and the exhaust end of the combustor (6) is connected with the cold-heat exchanger (5) through an exhaust pipe; the other end of the bottom of the heat preservation water tank (1) is connected with a circulating pipe (2), the other end of the circulating pipe (2) is connected with a water inlet at the bottom of the cold-hot heat exchanger (5), a water outlet at the top of the cold-hot heat exchanger (5) is connected with the top of the heat preservation water tank (1) through the circulating pipe (2), the circulating pipe (2) is communicated with the inside of the heat preservation water tank (1), and a cold water circulating pump (3) is installed on the circulating pipe (2) at the bottom;
the top of the inner container heat exchanger (4) is connected with a steam discharge pipe (11) in a penetrating way, the bottom of the steam discharge pipe (11) is provided with a pressure switch (8), and the inside of the steam discharge pipe (11) is provided with a pressure sensor (9) on the upper part of the pressure switch (8);
first water level measuring device (13) and second water level measuring device (16) are installed respectively to one side of inner bag heat exchanger (4) and holding water box (1), just first water level measuring device (13) and second water level measuring device (16) all are connected with two sets of water level measuring sensor, and just two sets of water level measuring sensor install respectively in the inside top and the below of inner bag heat exchanger (4) and the inside top and the below of holding water box (1).
2. The fully premixed steam boiler according to claim 1, wherein the upper part of the burner (6) is connected with an air inlet pipe (12), and an air inlet pump (7) is installed at the connection part of the air inlet pipe (12) and the burner (6).
3. A fully premixed steam boiler according to claim 1, characterized in that a temperature probe (10) is installed inside the upper part of said steam discharge pipe (11).
4. The fully premixed steam boiler according to claim 1, wherein one side of the holding water tank (1) is connected with a water inlet pipe (18), and a second water replenishing pump (17) is installed on the water inlet pipe (18).
5. The fully premixed steam boiler according to claim 1, wherein the first water replenishing pump (15), the second water replenishing pump (17), the cold water circulating pump (3), the air intake pump (7) and the burner (6) are electrically connected to a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921689644.0U CN210861036U (en) | 2019-10-10 | 2019-10-10 | Full-premixing steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921689644.0U CN210861036U (en) | 2019-10-10 | 2019-10-10 | Full-premixing steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210861036U true CN210861036U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921689644.0U Active CN210861036U (en) | 2019-10-10 | 2019-10-10 | Full-premixing steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210861036U (en) |
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2019
- 2019-10-10 CN CN201921689644.0U patent/CN210861036U/en active Active
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