Steam generator with preheating function

Abstract

The utility model discloses a steam generator with a preheating function, which comprises a steam generator shell, a steam outlet pipe is fixedly arranged at the top of the steam generator shell, and a pressure detection meter is fixedly arranged at the top of the steam generator shell. The detection end of the pressure detection meter penetrates through the steam generator shell and extends into the steam generator shell. The water flow is preheated through the preheating assembly, the preheated water flow enters the steam generator shell through the preheating assembly, and when the monitoring assembly monitors that the water level in the steam generator shell reaches the preset value of the highest water level, the external conveying pump and the preheating assembly stop running; and the water flow can be automatically preheated according to the water level in the steam generator shell, and the preheated water flow is added into the steam generator shell, so that the steam generator is more flexible to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam generator technical field especially relates to a steam generator with preheating function. BACKGROUND

[0002] Steam generator is a kind of equipment that converts water into steam, has extensive application in industry, commerce and other fields, steam generator mainly produces steam by heating water. Common heating mode has electric heating, gas heating, oil heating etc. When water is heated to a certain temperature, steam will be formed. Steam generator is usually composed of water tank, heating element, control system etc. Control system can automatically adjust heating power and water level according to set parameters, ensure the stable output of steam, wherein electric heating steam generator converts electric energy into heat energy by electric heating element such as resistance wire, and heats water to produce steam.

[0003] And in the use process of steam generator, with the evaporation of water flow, the water flow liquid level in steam generator is reduced, steam generator needs to deliver water flow, and the sudden addition of cold water can make the temperature in steam generator drop rapidly, which can cause thermal shock to the metal parts of the equipment, and long-term use can cause metal fatigue, cracking and other problems, affect the service life of the equipment, and the addition of cold water can reduce the water temperature in steam generator, thereby temporarily reducing steam production. Based on the above problems, the present application provides a steam generator with preheating function. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a steam generator with preheating function to solve the problems in the background art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A steam generator with preheating function, comprising a steam generator shell, a steam outlet pipe is fixedly arranged at the top of the steam generator shell, a pressure detection table is fixedly arranged at the top of the steam generator shell, the detection end of the pressure detection table penetrates through the steam generator shell and extends to the inside of the steam generator shell, an installation plate is fixedly arranged in the inside of the steam generator shell, an electric heater is fixedly arranged in the inside of the installation plate, a preheating assembly for preheating water flow is arranged on the left side of the steam generator shell, and a monitoring assembly for monitoring the water level in the inside of the steam generator shell is arranged at the top of the steam generator shell.

[0007] Preferably, the preheating assembly comprises a heating filter box fixedly installed on the left side of the steam generator shell, water inlets and outlets are respectively arranged on the front and back sides of the heating filter box, a water inlet pipe is fixedly arranged on the front side of the heating filter box, a filter screen and a partition plate are fixedly arranged in the steam generator shell, a water flow preheating pipe and an inductive heating coil are connected between the back side of the heating filter box and the back wall of the heating filter box, the water flow preheating pipe is located in the inductive heating coil, a conveying pipeline is fixedly arranged on the back side of the heating filter box, and the water inlet end of the conveying pipeline is fixedly installed on the top of the steam generator shell.

[0008] Preferably, the monitoring assembly comprises an installation frame fixedly installed on the top of the steam generator shell, a sliding rheostat is fixedly arranged on the back wall of the installation frame, a moving rod is arranged in the installation frame, the moving rod is slidingly arranged in the steam generator shell, an installation block is fixedly arranged on the top end of the moving rod, the installation block is connected with a sliding sheet of the sliding rheostat, a buoyancy ball is fixedly arranged on the bottom end of the installation block, and the buoyancy ball is located in the steam generator shell.

[0009] Preferably, a sealing ring is fixedly arranged on the top of the steam generator shell, an installation groove is arranged in the sealing ring, and a sealing ring is fixedly arranged in the installation groove and in contact with the moving rod.

[0010] Preferably, a connecting port is arranged through the surface of the partition plate, the water flow preheating pipes are all circular metal pipes, and the water flow preheating pipes are not in contact with the inductive heating coil.

[0011] Preferably, the number of the electric heaters is several, and the several electric heaters are arranged in a linear array.

[0012] Preferably, the moving rod is in a circular structure, the moving rod is made of reinforced plastic material, and a sliding hole for the moving rod to slide is arranged through the top of the steam generator shell.

[0013] Compared with the prior art, the steam generator with a preheating function has the following beneficial effects: the water flow in the steam generator shell is monitored by the monitoring assembly, when the water level in the steam generator shell is reduced to a preset value, the external conveying pump conveys the water flow to the inside of the preheating assembly, the water flow is preheated by the preheating assembly, the preheated water flow enters the inside of the steam generator shell through the preheating assembly, when the monitoring assembly monitors that the water level in the steam generator shell reaches the preset value of the highest water level, the external conveying pump and the preheating assembly stop operating, the water flow entering the steam generator shell is preheated, the water flow is automatically preheated according to the water level in the steam generator shell, the preheated water flow is added to the inside of the steam generator shell, and the steam generator is more flexible to use. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of the structure of this utility model;

[0015] Figure 2 This is a longitudinal sectional view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the preheating component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the monitoring component structure of this utility model.

[0018] In the diagram: 1. Steam generator casing; 2. Steam outlet pipe; 3. Pressure gauge; 4. Mounting plate; 5. Electric heater; 6. Heating filter box; 7. Water inlet; 8. Water outlet; 9. Water inlet pipe; 10. Filter screen; 11. Divider plate; 12. Water preheating pipe; 13. Inductive heating coil; 14. Delivery pipe; 15. Mounting frame; 16. Sliding rheostat; 17. Moving rod; 18. Mounting block; 19. Buoyancy ball; 20. Sealing ring; 21. Sealing ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1-4 A steam generator with preheating function includes a steam generator housing 1, a steam outlet pipe 2 fixedly installed on the top of the steam generator housing 1, a pressure gauge 3 fixedly installed on the top of the steam generator housing 1, the detection end of the pressure gauge 3 penetrating through the steam generator housing 1 and extending into the interior of the steam generator housing 1, an installation plate 4 fixedly installed inside the steam generator housing 1, an electric heater 5 fixedly installed inside the installation plate 4, and several electric heaters 5 arranged in a linear array, so that the water flow inside the steam generator housing 1 is heated simultaneously by several electric heaters 5, thereby increasing the heating speed of the water flow, a preheating component for preheating the water flow is provided on the left side of the steam generator housing 1, and a monitoring component for monitoring the water level inside the steam generator housing 1 is provided on the top of the steam generator housing 1.

[0021] Specifically, the preheating assembly comprises a heating filter box 6 fixedly installed on the left side of the steam generator shell 1, water inlets 7 and water outlets 8 are respectively arranged on the front and rear sides of the heating filter box 6, a water inlet pipe 9 is fixedly arranged on the front side of the heating filter box 6, a filter screen 10 and a partition plate 11 are fixedly arranged in the steam generator shell 1, a water flow preheating pipe 12 and an inductive heating coil 13 are connected between the rear side of the partition plate 11 and the rear wall of the heating filter box 6, a connecting port is arranged through the surface of the partition plate 11, the water flow preheating pipe 12 is a circular metal pipe, the water flow preheating pipe 12 does not contact the inductive heating coil 13, water flow can enter the inside of the water flow preheating pipe 12 through the connecting port, the water flow preheating pipe 12 is located in the inside of the inductive heating coil 13, a conveying pipeline 14 is fixedly arranged on the rear side of the heating filter box 6, the water inlet end of the conveying pipeline 14 is fixedly installed on the top of the steam generator shell 1, an external conveying pump conveys water flow into the inside of the water inlet pipe 9, and then the water flow enters the inside of the heating filter box 6 through the water inlet 7, the entering water flow is filtered through the filter screen 10, the filtered water flow enters the inside of the water flow preheating pipe 12, and the water flow preheating pipe 12 is heated through the inductive heating coil 13, so that the water flow preheating pipe 12 heats the water flow in the inside of the water flow preheating pipe 12, the heated water flow enters the inside of the conveying pipeline 14 through the water outlet 8, and then enters the inside of the steam generator shell 1 through the conveying pipeline 14, so that the entering water flow in the steam generator shell 1 can be preheated, and the preheating assembly can automatically preheat and convey the water flow in cooperation with the monitoring assembly, so that the steam generator is more automatic to use.

[0022] Specifically, the monitoring assembly comprises a mounting frame 15 fixedly installed at the top of the steam generator shell 1, a sliding rheostat 16 fixedly arranged at the rear wall of the mounting frame 15, a moving rod 17 arranged in the mounting frame 15, a sealing ring 20 fixedly arranged at the top of the steam generator shell 1, an installation groove arranged in the sealing ring 20, a sealing ring 21 fixedly arranged in the installation groove, the sealing ring 21 being in contact with the moving rod 17, the sealing ring 20 and the sealing ring 21 being arranged to facilitate sealing of the moving rod 17, so as to avoid steam leakage through the gap between the moving rod 17 and the steam generator shell 1, the moving rod 17 being slidingly arranged in the steam generator shell 1, an installation block 18 fixedly arranged at the top end of the moving rod 17, the installation block 18 being connected with the sliding sheet of the sliding rheostat 16, a buoyant ball 19 fixedly arranged at the bottom end of the installation block 18, the moving rod 17 being of a circular structure and made of reinforced plastic material, a sliding hole for sliding of the moving rod 17 being arranged at the top of the steam generator shell 1, the moving rod 17 made of reinforced plastic material having high strength and low weight, so as to facilitate movement of the moving rod 17 driven by the buoyant ball 19, the buoyant ball 19 being located in the steam generator shell 1 and moving along with the water flow in the steam generator shell 1, the buoyant ball 19 driving the moving rod 17 to move downward or upward, the moving rod 17 driving the sliding sheet of the sliding rheostat 16 to move upward or downward through the installation block 18, so as to increase or decrease the resistance value of the sliding rheostat 16, wherein when the resistance value of the sliding rheostat 16 increases to the highest preset value, the preheating assembly preheats the water flow and delivers the water flow into the steam generator shell 1, and when the resistance value of the sliding rheostat 16 decreases to the lowest preset value, the preheating assembly stops heating the water flow and stops delivering the water flow into the steam generator shell 1.

[0023] The steam generator with the preheating function is connected with 220V mains, and the main controller can be a conventional known device such as a computer.

[0024] In use: the water flow inside the steam generator shell 1 is heated by the electric heater 5, the heated water flow evaporates, the steam is discharged through the steam outlet pipe 2, as the water flow inside the steam generator shell 1 evaporates, the water level of the water flow inside the steam generator shell 1 decreases, the buoyancy ball 19 moves downward following the decrease of the water level of the water flow inside the steam generator shell 1, the moving rod 17 is driven by the buoyancy ball 19 to move downward, the mounting block 18 is driven by the moving rod 17 to move downward, the mounting block 18 drives the sliding piece of the sliding rheostat 16 to move downward, the resistance value of the sliding rheostat 16 increases, when the resistance value of the sliding rheostat 16 increases to the preset value, the external delivery pump delivers the water flow to the inside of the water inlet pipe 9, and the water flow enters the inside of the heating filter box 6 through the water inlet 7, the water flow is filtered through the filter screen 10, the filtered water flow enters the inside of the water flow preheating pipe 12 through the connecting port arranged on the partition plate 11, and the water flow preheating pipe 12 is heated by the electric induction heating coil 13, when the high-frequency current passes through the electric induction heating coil 13, a high-frequency alternating magnetic field is generated around the electric induction heating coil 13, due to electromagnetic induction, an induced current, namely eddy current, is generated in the inside of the heated water flow preheating pipe 12, the eddy current flows in the inside of the heated object and generates heat due to the resistance, so that the temperature of the water flow preheating pipe 12 increases, the water flow preheating pipe 12 heats the water flow in the inside of the water flow preheating pipe 12, the heated water flow enters the inside of the delivery pipeline 14 through the water outlet 8, and enters the inside of the steam generator shell 1 through the delivery pipeline 14, after the preheated water flow enters the inside of the steam generator shell 1, the water level of the water flow in the inside of the steam generator shell 1 increases, and the buoyancy ball 19 is pushed to move upward, the buoyancy ball 19 pushes the moving rod 17 to drive the mounting block 18 to move upward, the mounting block 18 drives the sliding piece of the sliding rheostat 16 to move upward, the resistance value of the sliding rheostat 16 decreases, when the resistance value of the sliding rheostat 16 decreases to the preset value, the water flow stops being delivered.

[0025] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steam generator having a preheating function, comprising a steam generator housing (1), characterized in that, The steam generator shell (1) top is fixedly provided with steam outlet pipe (2), the steam generator shell (1) top is fixedly provided with pressure detection table (3), the detection end of pressure detection table (3) penetrates steam generator shell (1) and extends to the inside of steam generator shell (1), the inside of steam generator shell (1) is fixedly provided with mounting plate (4), the inside of mounting plate (4) is fixedly provided with electric heater (5), the left side of steam generator shell (1) is provided with preheating assembly for preheating water flow, the top of steam generator shell (1) is provided with monitoring assembly for monitoring the water level inside steam generator shell (1).

2. The steam generator having a preheating function according to claim 1, wherein The preheating assembly includes a heating filter box (6) fixedly installed on the left side of the steam generator shell (1), water inlets (7) and water outlets (8) are respectively provided on the front and rear sides of the heating filter box (6), a water inlet pipe (9) is fixedly provided on the front side of the heating filter box (6), a filter screen (10) and a partition plate (11) are fixedly provided inside the steam generator shell (1), a water flow preheating pipe (12) and an inductive heating coil (13) are connected between the rear side of the heating filter box (6) and the rear side wall of the steam generator shell (1), the water flow preheating pipe (12) is located inside the inductive heating coil (13), a delivery pipeline (14) is fixedly provided on the rear side of the heating filter box (6), and the water inlet end of the delivery pipeline (14) is fixedly installed on the top of the steam generator shell (1).

3. The steam generator having a preheating function according to claim 1, wherein The monitoring assembly includes a mounting frame (15) fixedly installed on the top of the steam generator shell (1), a sliding rheostat (16) is fixedly provided on the rear side wall of the mounting frame (15), a moving rod (17) is provided inside the mounting frame (15), the moving rod (17) is slidingly provided inside the steam generator shell (1), an installation block (18) is fixedly provided on the top end of the moving rod (17), the installation block (18) is connected with the sliding sheet of the sliding rheostat (16), a buoyancy ball (19) is fixedly provided on the bottom end of the installation block (18), and the buoyancy ball (19) is located inside the steam generator shell (1).

4. The steam generator having a preheating function according to claim 3, wherein A sealing ring (20) is fixedly provided on the top of the steam generator shell (1), an installation groove is formed in the inside of the sealing ring (20), and a sealing ring (21) is fixedly provided in the installation groove.

5. The steam generator having a preheating function according to claim 2, wherein A connecting port is penetratingly provided on the surface of the partition plate (11), the water flow preheating pipes (12) are all circular metal pipes, and the water flow preheating pipes (12) are not in contact with the inductive heating coil (13).

6. The steam generator having a preheating function according to claim 1, wherein The number of the electric heaters (5) is several, and the several electric heaters (5) are distributed in a linear array.

7. The steam generator having a preheating function according to claim 3, wherein The moving rod (17) is in a circular structure, the moving rod (17) is made of reinforced plastic material, and a sliding hole for sliding of the moving rod (17) is penetratingly provided on the top of the steam generator shell (1).

Images