Steam recovery structure of steam cabinet

Abstract

The utility model discloses a steam recovery structure of a steam cabinet, which recovers the steam that is to be discharged and unused through a plate exchanger, and is used to heat the normal temperature water to be flowed into a water tank, thereby indirectly reducing the use of gas combustion, saving energy and reducing emissions. A steam recovery structure of a steam cabinet comprises a base, a water tank is installed in the base; a box body is installed on the upper part of the base, and a plurality of steam chambers are divided inside the box body; a plate exchanger is installed in the base, high-temperature steam flows into the plate exchanger, low-temperature waste water flows out of the plate exchanger, normal temperature water flows into the plate exchanger, and heated water flows into the water tank.

Description

Technical Field

[0001] The utility model belongs to the technical field of steam cabinet equipment, in particular to a steam recovery structure of a steam cabinet. Background Art

[0002] Steaming cabinet is a kind of equipment used for heating and steaming food, which is usually used in catering industry and food processing industry. Different from traditional steamers, steaming cabinet has the advantages of high efficiency and energy saving, simple operation and easy cleaning. Its main function is to heat and steam the ingredients to achieve the effects of sterilization, odor removal and nutrition preservation. Steaming cabinet is one of the indispensable equipment in catering industry. It not only improves the processing efficiency of restaurants, but also makes the ingredients more delicious and hygienic, and increases the trust of consumers.

[0003] At present, when using a steam cabinet, the high-temperature steam generated is passed to heat the food, and then the steam is directly discharged to the outside, or the steam is discharged into the water through a pipe. However, the steam after passing through the food still has a relatively high temperature, so it is wasted if it is directly discharged. Summary of the invention

[0004] In view of the shortcomings of the above background technology, the purpose of the utility model is to provide a steam recovery structure for a steam cabinet, which recovers the steam that was originally to be discharged through a plate exchanger to heat the room temperature water to flow into the water tank, indirectly reducing the use of gas combustion, saving energy and reducing emissions.

[0005] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0006] A steam recovery structure for a steam cabinet comprises a base, in which a water tank is installed;

[0007] A box is installed on the upper part of the base, and several steam chambers are separated inside the box; a plate exchanger is installed inside the base, high-temperature steam flows into the plate exchanger, low-temperature waste water flows out of the plate exchanger, normal temperature water flows into the plate exchanger, and heated water flows into the water tank.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the water tank includes a steam generator located in the box body; the water tank includes a front sealing plate, a rear sealing plate, an upper sealing plate and a lower sealing plate; the upper sealing plate and the lower sealing plate are connected by being bent in a concave shape in cross section, and a first air hole is opened on the top of the upper sealing plate; the box body includes an inner tank assembly; the inner tank assembly includes an inner tank right side plate, an inner tank left side plate, an inner tank top plate, and an inner tank bottom plate; a steam cabinet panel is installed between the inner tank right side plate and the inner tank left side plate; a second air hole is opened on the inner tank right side plate; the steam drum assembly includes a steam drum pipe, the steam drum pipe is hollow inside, and a first three-way valve is installed on the side wall of the steam drum pipe, the first three-way valve is inserted into the second air hole to communicate, and the steam generated by the water tank flows into the inner tank assembly through the steam drum pipe.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: a layer plate is connected between the right side plate of the inner liner and the left side plate of the inner liner; U-shaped spacers are installed oppositely on the right side plate of the inner liner and the left side plate of the inner liner, and the openings of the two U-shaped spacers are oppositely arranged; the two side edges of the square tube frame are respectively inserted into the U-shaped spacers and fixed, and the second air hole is located below the square tube frame.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the layer plate rises from both sides to the middle and the inclined cross-section is triangular.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: an air outlet plate with a U-shaped cross-section is installed on the inner wall of the left side plate of the inner tank; the air outlet plate and the left side plate of the inner tank are assembled into an air duct; a third air hole is opened on the side wall of the air outlet plate; and the bottom of the air outlet plate is connected to the plate exchanger through a pipe.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: a bent Z-shaped air outlet baffle is fixed in the air outlet plate, and the air outlet baffle is installed vertically upward on one side of the third air hole.

[0013] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0014] Compared with the prior art, the steam recovery structure of the steam cabinet of the utility model adds a plate exchanger to recover the steam originally discharged directly and flow it into the plate exchanger, and heat the normal temperature water flowing into the plate exchanger, thereby reducing gas combustion and saving energy.

[0015] The air outlet plate and the left side plate of the inner tank are assembled to form a steam passage; the plate exchanger is connected with the air outlet plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall explosion structure of the steam cabinet.

[0017] Figure 2 It is a schematic diagram of the installation combination structure of the steam cabinet.

[0018] Figure 3 It is a schematic diagram of the explosion structure of a water tank of the utility model.

[0019] Figure 4 It is a schematic diagram of the torch burner structure of the steam cabinet.

[0020] Figure 5 It is a schematic diagram of the structure of the low-fire device of the steam cabinet.

[0021] Figure 6 It is a schematic diagram of the explosion structure of the low-fire device of the steam cabinet.

[0022] Figure 7 It is a schematic diagram of the explosion structure of the inner tank assembly of the utility model.

[0023] Figure 8 It is a schematic diagram of the box structure of the utility model.

[0024] Figure numerals: base 01; water tank 010; steam generator 0100; fire inlet pipe 01000; first sealing plate 01001; second sealing plate 01002; first fire distribution pipe 01003; second fire distribution pipe 01004; front sealing plate 01005; rear sealing plate 01006; chimney pipe 010060; smoke hole 010061; upper sealing plate 01007; first air hole 010070; lower sealing plate 01008; torch burner head 02; air inlet section 020; contraction section 021; expansion section 022; bending section 023; burner head fixing seat 024; gas nozzle 025; small fire device 03; inner partition 030; first plate body 0300; first baffle 0301; outer jacket plate 031; curved plate 0310; first fixing plate 0311; box body 04 ; Steam chamber 040; Inner tank assembly 041; Inner tank right side plate 0410; Second air hole 04100; Square tube frame 04101; Inner tank left side plate 0411; Layer plate 04110; U-shaped spacer 04111; Air outlet plate 04112; Third air hole 04113; Air outlet baffle 04114; Inner tank top plate 0412; First air outlet pipe 04120; First check valve 04121; Inner tank bottom plate 0413; Steam cabinet panel 0414; Gas control device 05; Pull rod 050; Handball 0500; Travel switch 051; Switch limit block 052; Switch bracket 053; Gas solenoid valve 06; Steam drum assembly 07; Steam drum pipe 070; Dry-burning electric heating pipe 0700; First three-way valve 071; First three-way pipe 072; Plate exchanger 08; DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to specific embodiments of the invention;

[0026] The present embodiment provides a steam recovery structure of a steam cabinet, including a base 001, in which a water tank 010 is installed; a box body 04 is installed on the upper part of the base 001, and a plurality of steam chambers 040 are separated inside the box body 04; a plate exchanger 08 is installed in the base 001, high-temperature steam flows back into the plate exchanger 08, low-temperature waste water flows out of the plate exchanger 08, normal temperature water flows into the plate exchanger 08, and heated water flows into the water tank 010.

[0027] The high-temperature steam released to the outside of the environment gathers and flows back into the plate exchanger 08, and the clean water at room temperature flows into the plate exchanger 08 for heat exchange. The room-temperature water is heated up to become heated water, and then flows into the water tank 010 to be heated and turned into steam, thereby reducing the demand for gas combustion.

[0028] High-temperature steam is the steam that has passed through food, normal-temperature water is the clean water that will flow into the water tank, low-temperature waste water is the water after high-temperature steam exchanges heat, and heated water is the normal-temperature water that absorbs heat.

[0029] Further, the water tank 010 includes a steam generator 0100 located in the box body 04; the water tank 010 includes a front sealing plate 01005, a rear sealing plate 01006, an upper sealing plate 01007 and a lower sealing plate 01008; the upper sealing plate 01007 and the lower sealing plate 01008 are connected by bending the cross section into a concave shape, and a first air hole 010070 is opened on the top of the upper sealing plate 01007;

[0030] The front sealing plate 01005, the rear sealing plate 01006, the upper sealing plate 01007 and the lower sealing plate 01008 are all made of metal plates; the first air hole 010070 is used for steam to flow out;

[0031] The box body 04 includes an inner liner assembly 041; the inner liner assembly 041 includes an inner liner right side plate 0410, an inner liner left side plate 0411, an inner liner top plate 0412, and an inner liner bottom plate 0413; a steam cabinet panel 0414 is installed between the inner liner right side plate 0410 and the inner liner left side plate 0411; a second air hole 04100 is opened on the inner liner right side plate 0410;

[0032] The inner tank assembly 041 is welded together to form a rectangular chamber, and the second air hole 04100 is used for steam to flow in;

[0033] The drum assembly 07 includes a drum pipe 070, the drum pipe 070 is hollow inside, a first three-way valve 071 is installed on the side wall of the drum pipe 070, the first three-way valve 071 is inserted into the second air hole 04100, and the steam generated by the water tank 010 flows into the inner tank assembly 041 through the drum pipe 070;

[0034] The drum pipe 070 is used for steam circulation. The steam flows through the drum pipe 070, passes through the first three-way valve 071 and enters the second air hole 04100;

[0035] Furthermore, a layer plate 04110 is connected between the right side plate 0410 of the inner liner and the left side plate 0411 of the inner liner; U-shaped spacers 04111 are relatively installed on the right side plate 0410 of the inner liner and the left side plate 0411 of the inner liner, and the openings of the two U-shaped spacers 04111 are relatively arranged; both side edges of the square tube frame 04101 are respectively inserted into the U-shaped spacers 04111 and fixed, and the second air hole 04100 is located below the square tube frame 04101.

[0036] The layer plate 04110 is welded and fixed to the right side plate 0410 and the left side plate 0411 of the inner pot on both sides, forming a separated steam chamber; the U-shaped partition bar 04111 is welded and fixed with metal bars, and the square tube frame 04101 is welded into a flat rectangular frame with metal pipes, and the square tube frame 04101 is inserted between the two U-shaped partition bars 04111 as a flat surface for placing food. Steam emerges from the second air hole 04100, floats upward and heats the food on the square tube frame 04101.

[0037] Furthermore, the layer plate 04110 rises from both sides to the middle and the inclined cross section is triangular.

[0038] The middle of the layer plate 04110 is raised, which increases the volume above the square tube frame 04101 and can place more food. At the same time, steam can gather on the layer plate 04110 to maintain its internal temperature.

[0039] Furthermore, an air outlet plate 04112 with a U-shaped cross-section is installed on the inner wall of the left side plate 0411 of the inner tank; the air outlet plate 04112 and the left side plate 0411 of the inner tank are assembled into an air duct; a third air hole 04113 is opened on the side wall of the air outlet plate 04112; and the bottom of the air outlet plate 04112 is connected to the plate exchanger 08 through a pipeline.

[0040] The air outlet plate 04112 and the left side plate 0411 of the inner tank are pieced together, and the third air hole 04113 is used for steam discharge; when steam is needed, the top opening of the air outlet plate 04112 is covered with a cover plate, and the steam cannot be discharged. The air outlet plate 04112 gathers the steam and flows back to the plate exchanger 08 for heat exchange, so that the normal temperature water to flow into the water tank 010 is preheated first, saving gas combustion.

[0041] Furthermore, a Z-shaped bent air outlet baffle 04114 is fixed in the air outlet plate 04112 , and the air outlet baffle 04114 is installed vertically upward on one side of the third air hole 04113 .

[0042] The air outlet baffle 04114 is welded on the air outlet plate 04112 to guide the steam and prevent too much steam from being discharged at once, which would cause excessive pressure in the air outlet plate 04112.

[0043] A torch burner head 02 is installed at the front end of the water tank 010, and the flame of the torch burner head 02 sprays toward the water tank 010. A small fire device 03 of an ignition device is installed below the torch burner head 02, and the flame of the small fire device 03 is close to the water tank 010;

[0044] The base 001 is made of a metal plate and metal pipe welded frame, the water tank 010 is made of a metal plate and is filled with clean water for generating steam; the gas in the torch burner head 02 forms a flame through combustion, the flame heats the water tank 010, and the clean water is heated; the small fire device 03 is located below the torch burner head 02 to play an ignition effect, and at the same time, the flame of the small fire device 03 can heat the water tank 010 to keep it warm.

[0045] A gas control device 05 is installed on the right side of the box 04. The gas control device 05 controls the gas solenoid valve 06 to ventilate, and the gas control device 05 adjusts the steam drum assembly 07 to control the steam to enter the steam chamber;

[0046] Box 04 is a frame made of metal plates and metal pipes welded together. The steam chamber is used to gather steam to heat food. The gas solenoid valve 06 controls the outflow or shutoff of gas. The drum assembly 07 is used to guide steam into box 04. The gas control device 05 realizes dual control of gas and steam at the same time.

[0047] As mentioned above, a torch burner head 02 is installed on one side of the water tank 010 to heat the water tank 010 to generate steam; a small fire device 03 is installed on one side of the torch burner head 02, and the small fire device 03 is a long-lasting flame that does not go out; when the torch burner head 02 does not generate flames, the small fire device 03 continues to spray small flames to keep the water tank 010 warm, and at the same time, it can be used as a ignition for the torch burner head 02, reducing the gas usage of the torch burner head 02, achieving three goals at one stroke;

[0048] A gas control device 05 is installed on the box body 04, which can control the gas through the gas solenoid valve 06 and control the steam through the steam drum assembly 07, killing two birds with one stone and preventing the operator from being scalded by the steam.

[0049] A plate exchanger 08 is installed in the base 001. The steam released into the environment after passing through the food flows back to the plate exchanger 08, heats the room temperature water, and the temperature rises. The heated water flows into the water tank 010 to be prepared as steam.

[0050] The steam generator 0100 includes a plurality of fire inlet pipes 01000 arranged in parallel, the fire inlet end of the fire inlet pipe 01000 is exposed outside the water tank 010, and the fire outlet end of the fire inlet pipe 01000 is inserted into the water tank 010;

[0051] The steam generator 0100 is used to heat water to form steam; the fire inlet pipe 01000 is made of bent metal plates, the flame sprayed by the torch burner head 02 penetrates into the fire inlet pipe 01000, and the fire outlet pipe of the fire inlet pipe 01000 is inserted into the water in the water tank 010; the number of fire inlet pipes 01000 is based on the design requirements; 1-5 fire inlet pipes 01000 are arranged in parallel;

[0052] A first sealing plate 01001 is provided in the water tank 010, and the first sealing plate 01001 encloses and forms a closed fire inlet chamber. The fire inlet pipe 01000 and the first sealing plate 01001 are connected and fixed, and the fire inlet pipe 01000 is communicated with the fire inlet chamber.

[0053] The first sealing plate 01001 is a metal plate, which is welded inside the water tank 010 to form a fire inlet chamber, and the flame is sprayed into the fire inlet chamber;

[0054] It also includes a second sealing plate 01002 enclosing a closed fire outlet chamber; the fire outlet chamber is fixed in the water tank 010 and is located above the fire inlet end of the fire inlet pipe 01000;

[0055] The second sealing plate 01002 is a metal plate, the fire outlet chamber and the fire inlet chamber are arranged opposite to each other, and the fire outlet chamber is welded inside the water tank 010;

[0056] It also includes a first fire distribution tube 01003, one end of which is connected and fixed to the first sealing plate 01001, and the other end of which is connected and fixed to the second sealing plate 01002. The fire inlet chamber is connected to the fire outlet chamber through the first fire distribution tube 01003;

[0057] The first fire distribution pipe 01003 is a metal round pipe, and the first fire distribution pipe 01003 is connected between the fire inlet chamber and the fire inlet chamber to guide the flame therethrough;

[0058] It also includes a second fire distribution pipe 01004, one end of which is fixedly connected to the second sealing plate 01002, and the other end of the second fire distribution pipe 01004 passes through the water tank 010 and communicates with the outside.

[0059] The second fire distribution pipe 01004 is a metal round pipe. The flame flows through the second fire distribution pipe 01004, sprays out of the water tank 010, and flows to the outside.

[0060] As described above, the room temperature water in the water tank 010 is heated up by contact with the fire inlet pipe 01000, the first fire branch pipe 01003 and the second fire branch pipe 01004 to produce steam; the fire inlet pipe 01000, the first fire branch pipe 01003 and the second fire branch pipe 01004 are parallel to each other and are directly used as metal round pipes, which has lower costs, simpler processes and higher production efficiency than the existing bent S-shaped pipes; scale adheres to the round straight pipes, which is convenient for later removal and maintenance, with a lower maintenance rate and more durability.

[0061] Furthermore, there are three fire inlet tubes 01000, and the cross-sectional shape of the fire inlet tubes 01000 is elliptical; there are 18 first fire branch tubes 01003 and second fire branch tubes 01004, respectively, and the first fire branch tubes 01003 and the second fire branch tubes 01004 are arranged in two rows, one above the other.

[0062] As mentioned above, the ellipse has a larger perimeter and area, and the area heated by the flame is larger. The first fire distribution tube 01003 and the second fire distribution tube 01004 are arranged in 4 layers, and as many as possible are arranged in the water tank 010 to increase contact with water.

[0063] The fire inlet end of the fire inlet pipe 01000 is connected and fixed to the front sealing plate 01005 , and the other end of the second fire distribution pipe 01004 is connected and fixed to the rear sealing plate 01006 .

[0064] As mentioned above, the front sealing plate 01005 is the plate body of the water tank 010 and also the fixing part of the fire inlet pipe 01000, killing two birds with one stone; the principle of the rear sealing plate 01006 is the same;

[0065] Furthermore, the torch burner head 02 includes an air inlet section 020, which is a cylindrical shell. An edge of one end of the air inlet section 020 contracts inwardly to form a contraction section 021, which is in a trumpet shape. An edge of one end of the contraction section 021 extends outwardly to form an expansion section 022, which is in a truncated cone shape. An edge of one end of the expansion section 022 extends outwardly and bends to form a bending section 023.

[0066] The air inlet section 020 is used for the inflow and convergence of gas, and the air inlet pipe is a cylindrical shell that can collect enough gas; the contraction section 021 is trumpet-shaped, that is, large on the outside and small on the inside, and the gas rushes into the expansion section 022 after compression, and the expansion section 022 drives the flame to spray forward, that is, it flows from the high pressure in the narrow area to the low pressure in the open area, and the bending section 023 guides the flame into the fire inlet pipe 01000; the contraction section 021 and the expansion section 022 enable the flame to automatically flow from high pressure to low pressure, which is more convenient and practical.

[0067] It also includes a burner head fixing seat 024; the burner head fixing seat 024 is bent into a C shape, the bottom of the burner head fixing seat 024 is connected and fixed to the air intake section 020, the middle of the burner head fixing seat 024 is connected and fixed to the water tank 010, and the top of the burner head fixing seat 024 is installed with a gas nozzle 025, and the gas nozzle 025 is arranged opposite to the air intake section.

[0068] The burner head fixing base 024 is fixed on the water tank 010, and the gas nozzle 025 sprays gas;

[0069] As described above, the combination of the contraction section 021 and the expansion section 022 does not require air blowing from a blower, and the flame can automatically flow along the direction of the torch burner head 02 .

[0070] Furthermore, the small fire device 03 includes an inner partition 030, which includes a long first plate body 0300, and a plurality of parallel arranged first baffles 0301 protrude from one side edge of the first plate body 0300; it also includes an outer sleeve plate 031 wrapping the inner partition 030, and the outer sleeve plate 031 wraps from one side edge of the first baffle 0301 to the other side edge of the first baffle 0301, one end of the outer sleeve plate 031 is connected to the air inlet pipe, and the other end of the outer sleeve plate 031 is closed.

[0071] As mentioned above, the inner baffle 030 is a metal strip, and there is a gap between adjacent first baffles 0301 for the gas to flow out and burn to form a flame;

[0072] The outer sleeve plate 031 is also a metal plate that wraps the inner partition plate 030, so that the gas can only flow out from the gap between the first baffle plates 0301; the small fire device 03 can continuously burn the flame so that it does not go out, and is used together with the torch burner head 02.

[0073] In another embodiment, the small fire device 03 may be a metal round tube with a gas hole opened on the side wall of the metal round tube.

[0074] Furthermore, the top of the first baffle 0301 protrudes outward.

[0075] As described above, the top spacing between adjacent first baffles 0301 is reduced, so that the gas can be compressed and ejected in a more continuous and slender manner.

[0076] Furthermore, the middle portion of the outer sleeve plate 031 protrudes outward to form an arc-shaped plate 0310 , and the two arc-shaped plates 0310 clamp the inner partition plate 030 .

[0077] As mentioned above, the two arc plates 0310 gather the gas and provide sufficient gas to keep the flame burning for a long time.

[0078] Furthermore, two T-shaped first fixing plates 0311 are connected to the bottom of the outer sleeve plate 031 .

[0079] As described above, the first fixing plate 0311 is placed on the water tank 010 , and the bolts pass through the first fixing plate 0311 .

[0080] The gas control device 05 includes a pull rod 050, one end of which passes through the steam cabinet panel 0414, and the other end of which is inserted into the first three-way valve 071 to control opening and closing. A switch limit block 052 is installed on the pull rod 050;

[0081] The pull rod 050 is in the shape of a long strip, and is connected to the first three-way valve 071 to control opening or closing. Before the glass door of the steam cabinet is pulled down and opened, the pull rod 050 is pulled outward, the first three-way valve 071 is closed, and steam cannot enter the second air hole 04100, so that the operator will not be scalded by steam when taking out food.

[0082] After the glass door of the steam cabinet is pushed up and closed, the pull rod 050 is pushed inward, the first three-way valve 071 is opened, and the steam enters the second air hole 04100 normally, and the food is steamed;

[0083] The pull rod 050 controls the opening and closing direction of the first three-way valve 071, which is in line with the operator's usage habits; the switch limit block 052 is welded on the pull rod 050 in a block shape and moves with the pull rod 050;

[0084] It also includes a travel switch 051, which is fixed on the right side plate 0410 of the inner tank; the travel switch 051 is electrically connected to the gas solenoid valve 06;

[0085] The bolt passes through the travel switch 051 to fix it, and the travel switch 051 controls the gas solenoid valve 06 to make the gas flow out or shut off.

[0086] The pull rod 050 moves, the switch limit block 052 connects or disconnects the travel switch 051, and the first three-way valve 071 is opened or closed.

[0087] As described above, the pull rod 050 is pulled outward, the switch limit block 052 is separated from the travel switch 051, the travel switch 051 is disconnected, the gas solenoid valve 06 is closed, the gas is turned off, the flame is extinguished, and no steam is generated. At the same time, the first three-way valve 071 is closed, and the steam retained in the drum pipe 070 will not flow into the second air hole 04100;

[0088] The pull rod 050 is pushed inward, the switch limit block 052 contacts the travel switch 051, the travel switch 051 is turned on, the gas solenoid valve 06 is opened, the gas flows out, the flame burns, and steam is generated. At the same time, the first three-way valve 071 is opened, and the steam flows into the second air hole 04100; at the same time, dual control of gas and steam is achieved.

[0089] Furthermore, a hand ball 0500 is installed on one end of the pull rod 050 passing through the steam cabinet panel 0414;

[0090] Handball 0500 is convenient for operating the pull and push rod;

[0091] The bottom surface of the switch limit block 052 is provided with an inclined slope; it also includes a switch bracket 053, which is fixed to the right side plate 0410 of the inner tank in a "X" shape, and the bolt passes through the travel switch 051 and is fixed to the switch bracket 053.

[0092] The inclined surface of the switch limit block 052 is conducive to triggering the travel switch 051 during the process of moving forward and backward;

[0093] The switch bracket 053 fixes the travel switch 051 to facilitate the triggering of the switch limit block 052.

[0094] Furthermore, a dry-burning electric heating pipe 0700 is installed on the top of the drum tube 070 , and the dry-burning electric heating pipe 0700 is inserted into the drum tube 070 .

[0095] The dry-burning electric heating tube 0700 can increase the temperature of the steam, so that the steam has a higher temperature for cooking food.

[0096] Furthermore, a first three-way pipe 072 is installed on the top of the drum pipe 070, and the dry-burning electric heating pipe 0700 is installed on the first three-way pipe 072;

[0097] The first air outlet pipe 04120 is installed on the inner liner top plate 0412 , the top of the first air outlet pipe 04120 is connected and fixed to the inner liner top plate 0412 , the bottom of the first air outlet pipe 04120 is installed with a first check valve 04121 , and the first check valve 04121 is connected to the first three-way pipe 072 .

[0098] The drum pipe 070 is connected to the first check valve 04121 through the first three-way pipe 072. When the steam pressure is too high, the first check valve 04121 will be pushed open, and the high-pressure steam will be discharged from the first outlet pipe 04120 to avoid explosion.

[0099] Furthermore, a long strip of chimney pipe 010060 is installed on the rear sealing plate 01006. The top inclined cross-section of the chimney pipe 010060 is triangular, and smoke holes 010061 are respectively opened on both side surfaces of the top of the chimney pipe 010060.

[0100] The chimney pipe 010060 is welded with metal plates. The chimney pipe 010060 is welded and fixed to the rear sealing plate 01006. The exhaust gas generated by the flame combustion is guided and discharged through the chimney pipe 010060, which will not affect the indoor air.

[0101] In order to quickly discharge the exhaust gas, the top of the chimney pipe 010060 is designed to be triangular, where the exhaust gas converges and then is discharged through the smoke holes 010061 on both sides.

[0102] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0103] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the present utility model, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection;

[0104] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steam recovery structure for a steam cabinet, characterized in that: It includes a base with a water tank installed inside the base; a box body is installed on the upper part of the base, and a number of steam chambers are divided inside the box body; a plate exchanger is installed in the base, high-temperature steam flows into the plate exchanger, low-temperature waste water flows out of the plate exchanger, normal-temperature water flows into the plate exchanger, and heated water flows into the water tank.

2. A steam recovery structure for a steam cabinet according to claim 1, characterized in that: The water tank includes a steam generator located in the tank body; the water tank includes a front sealing plate, a rear sealing plate, an upper sealing plate and a lower sealing plate; the upper sealing plate and the lower sealing plate are connected by bending the cross-section into a concave shape, and a first air hole is opened on the top of the upper sealing plate; The box body includes an inner tank assembly; the inner tank assembly is composed of an inner tank right side plate, an inner tank left side plate, an inner tank top plate, and an inner tank bottom plate; a steam cabinet panel is installed between the inner tank right side plate and the inner tank left side plate; a second air hole is opened on the inner tank right side plate; the steam drum assembly includes a steam drum pipe, the steam drum pipe is hollow inside, a first three-way valve is installed on the side wall of the steam drum pipe, the first three-way valve is inserted into the second air hole to communicate, and the steam generated by the water tank flows into the inner tank assembly through the steam drum pipe.

3. A steam recovery structure for a steam cabinet according to claim 2, characterized in that: A layer plate is connected between the right side plate and the left side plate of the inner liner; U-shaped spacers are installed oppositely on the right side plate and the left side plate of the inner liner, and the openings of the two U-shaped spacers are oppositely arranged; the two side edges of the square tube frame are respectively inserted into the U-shaped spacers and fixed, and the second air hole is located below the square tube frame.

4. The steam recovery structure of a steam cabinet according to claim 2, characterized in that: The layers rise from both sides to the middle and the inclined cross-section is triangular.

5. The steam recovery structure of a steam cabinet according to claim 2, characterized in that: An outlet plate with a U-shaped cross section is installed on the inner wall of the left side plate of the liner; the outlet plate and the left side plate of the liner are assembled into an air passage; a third air hole is opened on the side wall of the outlet plate; and the bottom of the outlet plate is connected to the plate exchanger through a pipeline.

6. The steam recovery structure of a steam cabinet according to claim 5, characterized in that: A bent Z-shaped air outlet baffle is fixed inside the air outlet plate, and the air outlet baffle is vertically installed upward on one side of the third air hole.

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