Thick film steam generator

Abstract

The present invention relates to a thick film steam generator, comprising a shell, a base fixedly connected to the bottom of the shell, a water inlet provided on the side of the shell, a thick film heating plate which divides the inner cavity of the shell into a heating zone and a non-heating zone; a filter component composed of a plurality of filter screens distributed in parallel along the height direction of the shell is distributed in the shell; cold water injected into the shell from the water inlet is heated into steam by the thick film heating plate, flows through the filter component for filtration, and is discharged from the air outlet distributed above the shell; at least two sealing parts which abut against the thick film heating plate and separate the heating zone and the non-heating zone are provided in the shell. The water droplets splashed by boiling hot water and the water mist generated by water vapor in the rising process are filtered by the filter component, the water droplet content of water vapor discharged from the air outlet is reduced, and the drying efficiency is improved; the edges of the upper and lower end surfaces of the thick film heating plate are completely covered by the second card slot in the first sealing ring to prevent water vapor from overflowing through the edge of the thick film heating plate.

Description

Technical Field

[0001] The invention relates to the field of steam generators, in particular to a thick film steam generator. Background Art

[0002] Steam generators are mainly suitable for garment factories, dry cleaners, restaurants, steamed bun shops, canteens, restaurants, factories and mines, bean product factories and other places to provide heating or drying operations.

[0003] The existing steam generator mainly adds water through the electric heating tube. At the same time, the heat of the electric heating tube is mainly transmitted through the aluminum plate, which requires multiple heat transfers and has low thermal efficiency, resulting in slow heating and a large number of water droplets easily mixed into the steam. The combination of the electric heating tube and the aluminum plate is prone to uneven heating and damage to the aluminum plate, causing the steam generator to stop working. In severe cases, it may even damage the circuit and accidentally injure the user. In order to solve the above problems, a thick film steam generator is designed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a thick film steam generator. The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0005] A thick film steam generator comprises a shell, a base is fixedly connected to the bottom of the shell, a water inlet is arranged on the side of the shell, and a thick film heating plate is arranged inside the shell to divide the inner cavity of the shell into a heating area and a non-heating area;

[0006] A filter component composed of a plurality of filter screens distributed in parallel along the height direction of the shell is distributed in the shell;

[0007] The cold water injected into the shell from the water inlet is heated into steam by the thick film heating plate, flows through the filter component for filtration, and then is discharged from the outlet distributed above the shell;

[0008] At least two sealing parts are arranged in the shell, which are in contact with the thick film heating plate and separate the heating area from the non-heating area.

[0009] The filter component comprises a first filter screen near the water inlet for filtering water droplets splashed by boiling hot water, and a second filter screen near the gas outlet for filtering water droplets mixed in the water vapor.

[0010] The coverage area of ​​the No. 1 filter is greater than the coverage area of ​​the No. 2 filter.

[0011] The sealing part includes a No. 1 sealing ring which is arranged near the edge of the thick film heating plate to block the upper end surface of the thick film heating plate from the non-heating area, and also includes a No. 2 sealing ring which covers the edge of the thick film heating plate and abuts against the inner wall of the shell to prevent water vapor from entering the non-heating area through the edge of the thick film heating plate.

[0012] The shell is provided with a storage area which cooperates with the base to form a storage area for storing water vapor not blocked by the sealing part.

[0013] The thick film heating plate comprises a substrate, on which a thick film circuit is solidified by high temperature sintering.

[0014] The substrate is provided with a No. 3 sealing ring near the edge of the thick film circuit to prevent water from damaging the thick film circuit.

[0015] A water retaining fence for protecting the water inlet is arranged inside the shell.

[0016] A gap is provided between the water retaining fence near the water inlet and the shell to prevent excessive pressure at the water inlet.

[0017] The beneficial effects of the present invention are as follows: the present invention filters the water droplets splashed by boiling hot water and the water mist generated in the rising process of water vapor through the filter component, reduces the water droplet content of the water vapor discharged from the air outlet, and improves the drying efficiency. At the same time, the height of the filter mesh in the filter component gradually increases from the periphery to the center, thereby expanding the filtering area. At the same time, the center height is relatively high, and the water droplets that are easily collected flow back and are heated again by gravity.

[0018] The No. 2 slot in the No. 1 sealing ring completely covers the edges of the upper and lower end surfaces of the thick-film heating plate to prevent water vapor from overflowing through the edges of the thick-film heating plate. At the same time, the No. 1 sealing ring separates the heating area from the non-heating area to prevent boiling water from directly contacting the No. 2 sealing ring, which would cause aging damage to the No. 2 sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a front view structural schematic diagram of the present invention;

[0022] Figure 3 A top view of the present invention;

[0023] Figure 4 This is a bottom view of the present invention after removing the base and the thick film heating plate;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the No. 1 filter screen and the No. 2 filter screen in the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the thick film heating plate of the present invention;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the No. 2 sealing ring in the present invention;

[0027] Figure 8 For the present invention Figure 2 Magnified view of center I;

[0028] Fig. 9 For the present invention Figure 4 Magnified view of middle II. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be explained more clearly and completely below in conjunction with the drawings in the embodiments. Of course, the described embodiments are only a part of the present invention but not all of it. Based on this embodiment, other embodiments obtained by those skilled in the art without creative labor are all within the protection scope of the present invention.

[0030] like Figures 1 to 9 As shown, a thick film steam generator comprises a shell 1, a base 2 is fixedly connected to the bottom of the shell 1, a water inlet 3 is arranged on the side of the shell 1, a thick film heating plate 6 is arranged in the shell 1 to divide the inner cavity of the shell 1 into a heating zone 7 and a non-heating zone 8; a support platform 2a for supporting the thick film heating plate 6 is arranged on the base 2; a three-pin water level detector 13 is arranged on the side away from the water inlet 3, an NTC sensor 4 is distributed above the three-pin water level detector 13, and a retaining ring 13a is arranged in the shell 1 to prevent bubbles from affecting the detection of the three-pin water level detector 13; the shell 1 is also provided with a pressure relief port 10 distributed on the same side as the water inlet 3;

[0031] The housing 1 is provided with a filter component 9 composed of a plurality of filter screens distributed in parallel along the height direction of the housing 1;

[0032] The cold water injected into the housing 1 from the water inlet 3 is heated into steam by the thick film heating plate 6, flows through the filter component 9 for filtration, and then is discharged from the outlet 5 distributed above the housing 1;

[0033] At least two sealing parts 11 are arranged in the housing 1 , which are in contact with the thick film heating plate 6 and separate the heating area 7 from the non-heating area 8 .

[0034] The filtering component 9 includes a No. 1 filter 91 near the water inlet 3 for filtering splashing water droplets of boiling hot water, and a No. 2 filter 92 near the air outlet 5 for filtering mixed water droplets in the water vapor; the filtering component 9 also includes a support rod 93 distributed in the shell 1 to fix the No. 1 filter 91 and the No. 2 filter 92; the boiling water heated by the thick film heating plate 6 in the shell 1 will produce a large number of splashing bubbles, and the splashing water droplets are filtered by the No. 1 filter 91 to prevent the water droplets from being discharged from the air outlet 5 with the steam; because the steam will quickly liquefy into small water droplets to form water mist during the rising process, it will be filtered again by the No. 2 filter 92 before the water vapor enters the air outlet 5 to prevent the water mist content in the water vapor from being too high.

[0035] The coverage area of ​​the No. 1 filter 91 is larger than that of the No. 2 filter 92; the heights of the No. 1 filter 91 and the No. 2 filter 92 gradually increase from the periphery to the center, thereby expanding the filtration area. At the same time, due to the high center height, the water droplets that are easily collected flow back under the action of gravity and are heated again.

[0036] The sealing portion 11 includes a No. 1 sealing ring 111 which is arranged near the edge of the thick film heating plate 6 to block the upper end surface of the thick film heating plate 6 from the non-heating zone 5, and also includes a No. 2 sealing ring 112 which covers the edge of the thick film heating plate 6 and abuts against the inner wall of the shell 1 to prevent water vapor from entering the non-heating zone 5 through the edge of the thick film heating plate 6.

[0037] The shell 1 is provided with a storage area 113 that cooperates with the base 2 to form a storage area for storing water vapor that is not blocked by the sealing part 11; the No. 1 card groove 112a on the No. 2 sealing ring 112 is adapted to the thick film heating plate 6, and the No. 1 card groove 112a completely covers the edges of the upper and lower end surfaces of the thick film heating plate 6 to prevent water droplets from entering the storage area 113 through the gap at the edge of the thick film heating plate 6; the storage area 113 is provided with a No. 2 card groove 113a for fixing the position of the No. 2 sealing ring 112; the water vapor that is not blocked by the No. 1 sealing ring 111 and the No. 2 sealing ring 112 forms droplets in the storage area 113 to prevent further diffusion and damage to the thick film heating plate 6; the base 2 is provided with a through hole 2b for allowing water in the storage area 113 to flow out.

[0038] The thick film heating plate 6 comprises a substrate 61 on which a thick film circuit 62 is solidified by high temperature sintering.

[0039] The substrate 61 is provided with a No. 3 sealing ring 114 near the edge of the thick film circuit 62 to prevent water from damaging the thick film circuit 62; the No. 3 sealing ring 114 is distributed in the support platform 2a, and the No. 3 sealing ring 114 prevents high-temperature water vapor from damaging the thick film circuit 62, causing the thick film circuit 62 to short-circuit and cause a malfunction.

[0040] A water retaining fence 12 is provided in the housing 1 to protect the water inlet 2 .

[0041] A notch 12a is provided between the water retaining fence 12 near the water inlet 2 and the shell 1 to prevent excessive pressure at the water inlet 2. The side of the water retaining fence 12 away from the notch 12a is fixedly connected to the shell 1, and the side of the water retaining fence 12 away from the notch 12a is sealed; the notch 12a prevents the pressure in the area enclosed by the water retaining fence 12 from being too high, resulting in the inability of cold water to stably enter the steam generator shell 1 from the water inlet 3.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A thick film steam generator, comprising a shell (1), wherein a base (2) is fixedly connected to the bottom of the shell (1), characterized in that: A water inlet (3) is provided on the side of the shell (1), and a thick film heating plate (6) is provided inside the shell (1) for dividing the inner cavity of the shell (1) into a heating area (7) and a non-heating area (8); A filter component (9) is distributed inside the housing (1) and is composed of a plurality of filter screens distributed in parallel along the height direction of the housing (1); Cold water injected into the housing (1) from the water inlet (3) is heated by the thick film heating plate (6) to become steam, flows through the filter component (9) for filtration, and is then discharged from the outlet (5) distributed above the housing (1); The housing (1) is provided with at least two sealing portions (11) which abut against the thick film heating disk (6) and separate the heating area (7) from the non-heating area (8); The filtering component (9) comprises a first filter screen (91) close to the water inlet (3) for filtering water droplets splashed by boiling hot water, and a second filter screen (92) close to the gas outlet (5) for filtering water droplets mixed in the water vapor; The coverage area of ​​the No. 1 filter (91) is greater than the coverage area of ​​the No. 2 filter (92); the heights of the No. 1 filter (91) and the No. 2 filter (92) gradually increase from the periphery to the center; The sealing portion (11) comprises a first sealing ring (111) arranged near the edge of the thick film heating disk (6) to block the upper end surface of the thick film heating disk (6) from the non-heating zone (8), and also comprises a second sealing ring (112) covering the edge of the thick film heating disk (6) and abutting against the inner wall of the housing (1) to prevent water vapor from entering the non-heating zone (8) through the edge of the thick film heating disk (6); The housing (1) is provided with a storage area (113) which cooperates with the base (2) to form a storage area for storing water vapor not blocked by the sealing portion (11); The thick film heating plate (6) comprises a substrate (61), on which a thick film circuit (62) is solidified by high temperature sintering; A third sealing ring (114) is provided at the edge of the substrate (61) close to the thick film circuit (62) to prevent water from damaging the thick film circuit (62); The water in the housing (1) is heated and boiled by the thick film heating plate (6), which generates a large amount of splashing bubbles. The splashing water droplets are filtered by the first filter (91) to prevent the water droplets from being discharged from the air outlet (5) along with the steam. Since the steam will quickly liquefy into small water droplets to form water mist during the rising process, the water vapor is filtered again by the second filter (92) before entering the air outlet (5) to prevent the water vapor from having too high a water mist content.

2. A thick film steam generator according to claim 1, characterized in that: A water retaining fence (12) is provided in the housing (1) for protecting the water inlet (3).

3. A thick film steam generator according to claim 2, characterized in that: A notch (12a) is provided between the water retaining fence (12) near the water inlet (3) and the housing (1) to prevent excessive pressure at the water inlet (3).

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