Efficient steam generator

Abstract

The utility model relates to the field of steam cabinets, and discloses an efficient steam generator which comprises an outer shell, a fuel gas inlet, a steam outlet and a water supplementing inlet are formed in the outer surface of the outer shell, a main combustion pipe is arranged in the outer shell and connected with the fuel gas inlet, and a plurality of branch combustion pipes are arranged outside the main combustion pipe. The tail ends of the combustion branch pipes are connected through an exhaust main pipe, the exhaust main pipe communicates with the exterior of the outer shell, and delay components are arranged in the combustion branch pipes; a delay component is arranged in the combustion branch pipe, the delay component can adopt a Tesla valve technology or an auger technology and the like and can play a role in delaying flame flowing, so that the contact duration between flame and the combustion branch pipe is prolonged, the flame utilization rate is increased, the temperature of a waste gas outlet of the steam generator is reduced to 100 DEG C or below, and the hot gas utilization rate is greatly increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steam cabinet, concretely relates to the field of steam generator of steam cabinet, and particularly relates to a high -efficient steam generator. BACKGROUND

[0002] Steam generator is a kind of mechanical device that consumes fuel, heats water and generates steam, commonly used in steam cabinet, in prior art, commonly used is gas steam generator, its steam speed is fast, thermal efficiency is high, and the pollutants in smoke dust are less, but it has some deficiencies, for example, just simply ignites gas to burn water, does not apply any measures to combustion flame, resulting in that the heat exchange efficiency between gas combustion heat and water is not high, energy utilization rate is relatively low, the exhaust outlet temperature of steam generator is as high as 200 DEG C, that is, most of the heat is not utilized, and it needs to be improved;When steam is utilized, steam circulation flow is generally used to improve hot gas utilization rate, but in prior art, generally only steam returned to steam generator is pulled, and the returned steam is not limited, which can easily lead to that the temperature of returned steam has not been increased to preset value, and then participate in steam circulation flow again, resulting in that the overall effect of steam utilization equipment is affected.

[0003] Based on the above, the utility model provides a kind of high -efficient steam generator. UTILITY MODEL CONTENT

[0004] To solve the problems mentioned in the above background, the utility model provides a kind of high -efficient steam generator.

[0005] To realize the above technical purpose, the technical scheme adopted by the utility model is as follows.

[0006] A kind of high -efficient steam generator, including outer shell, the outer surface of outer shell is provided with gas inlet, steam outlet and water replenishment inlet, combustion main pipe is provided in outer shell, combustion main pipe is connected with gas inlet, the outside of combustion main pipe is provided with several combustion branch pipes, the tail end of several combustion branch pipes is connected by exhaust main pipe, exhaust main pipe is communicated with the outside of outer shell, and combustion branch pipe is provided with delay component.

[0007] As further improvement and optimization of the utility model, several combustion branch pipes are arrayed on the outside of combustion main pipe along the axial line direction of combustion main pipe.

[0008] As further improvement and optimization of the utility model, combustion branch pipe is continuously curved shape.

[0009] As further improvement and optimization of the utility model, delay component includes Tesla valve.

[0010] As further improvement and optimization of the utility model, delay component includes auger.

[0011] As further improvement and optimization of the utility model, the outer surface of the shell body is provided with a waste gas outlet, an exhaust branch pipe is arranged on the exhaust main pipe, and the tail end of the exhaust branch pipe is connected with the waste gas outlet.

[0012] As further improvement and optimization of the utility model, the outer surface of the shell body is provided with a water level detection pipe, a water level sensor is arranged in the water level detection pipe, a plurality of steam outlets are connected in parallel with the steam outlet, and each steam outlet is provided with a gas valve.

[0013] As further improvement and optimization of the utility model, a plurality of fins are arranged between the combustion branch pipe and the exhaust branch pipe, and the fins are made of heat-conducting material.

[0014] As further improvement and optimization of the utility model, a steam circulation inlet is arranged on the surface of the shell body, a plurality of blocking plates are arranged along the length direction of the upper cavity wall of the shell body, the blocking plate comprises a plurality of blocking plates one, a blocking plate two is arranged between the adjacent two blocking plates one, and a plurality of blocking plate twos are correspondingly arranged.

[0015] The two cavity walls of the shell body along the width direction are respectively named as side wall one and side wall two, one end of the blocking plate one is connected with the side wall one, and the other end has a gap with the side wall two, one end of the blocking plate two is connected with the side wall two, and the other end has a gap with the side wall one, the steam circulation inlet and the steam outlet are close to the upper cavity wall of the shell body and are respectively located at the two ends of the shell body along the length direction.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1、In the scheme, the combustion branch pipe is provided with a delay component, which can be a Tesla valve technology or a screw conveyor technology, etc., which can delay the flow of the flame, thereby prolonging the contact time between the flame and the combustion branch pipe, thereby improving the utilization rate of the flame, i.e. realizing more heat exchange between the flame heat and the water, and improving the heat exchange efficiency of the steam generator in the smallest space; the waste gas outlet temperature of the steam generator of the scheme is reduced from 200 DEG C to 100 DEG C, greatly improving the utilization rate of hot gas;

[0018] Further, the combustion branch pipe is in a continuous curved shape and is provided with fins, which can increase the contact area of the combustion branch pipe with the water in the shell body, thereby improving the heat exchange effect.

[0019] 2. After the steam returns to the outer shell through the steam circulation inlet, it can only flow to the steam outlet along the continuous bending area composed of several partitions 1 and 2. During this process, since the continuous bending area is long and the barrier plate is made of heat-conducting material, the returning steam will continue to participate in the steam circulation flow only after undergoing sufficient heat exchange time, so as to avoid the problem that the returning steam temperature does not reach the preset value before being gathered into the steam circulation flow, causing the temperature of the steam output by the steam generator to fail to reach the set value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0022] Figure 3 It is an internal schematic diagram of the utility model;

[0023] Figure 4 This is a schematic structural diagram of the auger of the present utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the auger of the present invention in the gas branch pipe;

[0025] Figure 6 is a schematic diagram of the fin;

[0026] Figure 7 Bottom view of the baffle.

[0027] The reference numerals in the accompanying drawings are:

[0028] 1. Outer shell; 2. Fire viewing port; 3. Gas inlet; 4. Drain and slag discharge port; 5. Water level detection tube; 6. Water level sensor; 7. Steam outlet; 8. Gas valve; 9. Water supply inlet; 10. Steam circulation inlet; 11. Exhaust gas outlet; 12. Combustion main pipe; 13. Exhaust main pipe; 14. Combustion branch pipe; 15. Exhaust branch pipe; 16. Fins; 17. Baffle plate; 18. Delay component. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments. Example 1

[0030] Reference Figures 1-5A high-efficiency steam generator comprises an outer shell 1, the outer surface of the outer shell 1 is provided with a fire observation port 2, a gas inlet 3, a water and slag discharge port 4, a water level detection tube 5, a steam outlet 7, a water replenishment inlet 9, a steam circulation inlet 10 and a waste gas outlet 11, wherein:

[0031] Water can be replenished into the outer shell 1 from the water replenishment inlet 9, further, the water replenishment inlet 9 can be provided with a water replenishment end cover, or the water replenishment inlet 9 is connected with a faucet through a water pipe, the former needs to manually open the water replenishment end cover for water replenishment, and the latter directly replenishes water by screwing the faucet.

[0032] The combustion of the gas can be observed from the fire observation port 2.

[0033] The water level detection tube 5 is in communication with the inside of the outer shell 1, and a water level sensor 6 is arranged inside to automatically monitor the water level in the outer shell 1.

[0034] The water and slag discharge port 4 is used to empty the remaining water in the outer shell 1 when not in use, and a water discharge end cover or an electromagnetic valve can be arranged on the water and slag discharge port 4 to open or close the water and slag discharge port 4.

[0035] The steam outlet 7 is provided in parallel with a plurality of steam outlets 7, and each steam outlet 7 is provided with a gas valve 8.

[0036] The steam circulation inlet 10 is used to receive steam, that is, after the steam is used by related equipment, it can be returned to the outer shell 1 through the steam circulation inlet 10 and rejoin the steam circulation flow after being heated.

[0037] In addition, referring to Figure 3 , the outer shell 1 is provided with a combustion main pipe 12 connected with the gas inlet 3, and the mixed gas of gas and air enters the combustion main pipe 12 through the gas inlet 3 to combust, and the combustion of the gas is realized by the prior art, which is not described in detail.

[0038] The combustion main pipe 12 is provided with a plurality of combustion branch pipes 14 arranged along the axial direction outside, the ends of the plurality of combustion branch pipes 14 are connected through an exhaust main pipe 13, the exhaust main pipe 13 is provided with an exhaust branch pipe 15, and the end of the exhaust branch pipe 15 is connected with the waste gas outlet 11.

[0039] In a preferred embodiment, the combustion branch pipe 14 is in a continuous curved shape, similar to a wave shape, which increases the contact area with the water in the outer shell 1, thereby improving the heat exchange effect.

[0040] In a preferred embodiment, referring to Figures 4-5, the combustion sub-pipe 14 is provided with a delay component 18 for delaying the flow of the flame in the combustion sub-pipe 14, the delay component 18 can be Tesla valve technology or auger technology, etc., and the embodiment is preferably an auger, which is arranged in each long pipe portion of the combustion sub-pipe 14. The delay component 18 plays a role in delaying the flow of the flame, thereby prolonging the contact time between the flame and the combustion sub-pipe 14, thereby improving the utilization rate of the flame, i.e. achieving more heat exchange between the flame and the water, improving the heat exchange efficiency of the steam generator in a minimum space, and the exhaust gas generated after the flame burns is discharged through the exhaust gas outlet 11. Embodiment two

[0041] With reference to Figure 6 A plurality of fins 16 can be arranged between the combustion sub-pipe 14 and the exhaust sub-pipe 15, the fins 16 are made of heat-conducting materials, such as copper, to further improve the heat exchange efficiency between the combustion sub-pipe 14 and the water.

[0042] With reference to Figure 7 The upper cavity wall of the outer shell 1 is arranged with a plurality of blocking plates 17 along the length direction, further, the blocking plates 17 include a first partition plate and a second partition plate, the two cavity walls of the outer shell 1 along the width direction are respectively named as a side wall one and a side wall two, one end of the first partition plate is connected with the side wall one, and the other end has a gap with the side wall two, one end of the second partition plate is connected with the side wall two, and the other end has a gap with the side wall one, the first partition plate and the second partition plate are arranged in a staggered manner, i.e. the second partition plate is located between two adjacent first partition plates, in addition, the steam circulation inlet 10 and the steam outlet 7 are both close to the upper cavity wall of the outer shell 1, and are respectively located at the two ends of the outer shell 1 along the length direction; in this way, based on the principle of hot air rising, after the steam returns to the outer shell 1 through the steam circulation inlet 10, it can only flow to the steam outlet 7 along the continuous bending area formed by the plurality of first partition plates and second partition plates, and during this process, due to the long continuous bending area and the fact that the blocking plates 17 are made of heat-conducting materials, the returned steam can be subjected to heat exchange for a sufficient time before it continues to participate in the steam circulation flow, so as to prevent the returned steam from converging into the steam circulation flow before its temperature reaches the preset value, thereby causing the temperature of the steam output by the steam generator to fail to reach the set value.

[0043] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the present application, and any equivalent embodiments with equivalent changes are equivalent to the above-mentioned technical content. Any modification, equivalent change and modification of the above-mentioned embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. A high-efficiency steam generator, comprising an outer shell (1), characterized in that: The outer surface of the outer shell (1) is provided with a gas inlet (3), a steam outlet (7) and a water supply inlet (9); a combustion main pipe (12) is provided inside the outer shell (1); the combustion main pipe (12) is connected to the gas inlet (3); a plurality of combustion branch pipes (14) are provided outside the combustion main pipe (12); the ends of the plurality of combustion branch pipes (14) are connected through an exhaust pipe (13); the exhaust pipe (13) is communicated with the outside of the outer shell (1); and a delay component (18) is provided inside the combustion branch pipe (14).

2. A high efficiency steam generator according to claim 1, characterized in that: A plurality of combustion branch pipes (14) are arranged in an array outside the combustion main pipe (12) along the axial centerline direction of the combustion main pipe (12).

3. The high-efficiency steam generator according to claim 1, characterized in that: The combustion branch pipe (14) is in a continuously curved shape.

4. A high-efficiency steam generator according to claim 3, characterized in that: The delay member (18) includes a Tesla valve.

5. The high-efficiency steam generator according to claim 3, characterized in that: The delay member (18) includes an auger.

6. The high-efficiency steam generator according to claim 1, characterized in that: An exhaust gas outlet (11) is provided on the outer surface of the outer shell (1), an exhaust branch pipe (15) is provided on the exhaust main pipe (13), and the end of the exhaust branch pipe (15) is connected to the exhaust gas outlet (11).

7. The high-efficiency steam generator according to claim 1, characterized in that: A water level detection tube (5) is provided on the outer surface of the outer shell (1), a water level sensor (6) is provided in the water level detection tube (5), a plurality of steam outlets (7) are provided in parallel, and a gas valve (8) is provided on each steam outlet (7).

8. The high-efficiency steam generator according to claim 6, characterized in that: A plurality of fins (16) are arranged in an array between the combustion branch pipe (14) and the exhaust branch pipe (15), and the fins (16) are made of a heat-conducting material.

9. The high-efficiency steam generator according to claim 1, characterized in that: A steam circulation inlet (10) is provided on the surface of the outer shell (1), and a plurality of baffles (17) are arranged in an array along the length direction of the upper cavity wall of the outer shell (1), wherein the baffles (17) include a plurality of baffles 1, a baffle 2 is provided between two adjacent baffles 1, and a plurality of baffles 2 are provided correspondingly; The two cavity walls of the outer shell (1) along the width direction are named side wall 1 and side wall 2 respectively. One end of partition 1 is connected to side wall 1, and a gap exists between the other end and side wall 2. One end of partition 2 is connected to side wall 2, and a gap exists between the other end and side wall 1. The steam circulation inlet (10) and the steam outlet (7) are both close to the upper cavity wall of the outer shell (1) and are respectively located at the two ends of the outer shell (1) along the length direction.

Images