Constant-pressure circulating device for gas-fired boiler

Abstract

The utility model relates to the technical field of constant pressure, in particular to a constant-pressure circulating device for a gas-fired boiler, which comprises a water storage tank and a water inlet pipe. A water inlet pipe is arranged at the top end of the water storage tank, two ends of the water pump are fixedly connected with the water inlet pipe, and a water outlet pipe is arranged on the outer wall of the lower end of the water storage tank; the water storage tank is fixedly connected with the constant-pressure tank through a connecting pipe, containing grooves are formed in the two sides of the constant-pressure tank, and the glass sheets are fixed to the inner walls of the containing grooves in a sealed mode; by improving the constant-pressure circulating device for the gas-fired boiler, the constant-pressure circulating device for the gas-fired boiler has the advantages of being reasonable in structural design and capable of stabilizing instantaneous water pressure and flexibly adjusting water flow, and therefore the problems and defects in the prior art and equipment are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of constant pressure technology, and more specifically, to a constant pressure circulation device for gas boilers. Background Technology

[0002] Gas-fired boilers include gas-fired hot water boilers, gas-fired steam boilers, and gas-fired power generation boilers. Among them, gas-fired hot water boilers are also called gas-fired heating boilers and gas-fired bathing boilers. As the name suggests, gas-fired boilers refer to boilers that use gas as fuel. Compared with oil-fired boilers and electric boilers, gas-fired boilers are the most economical. Therefore, most people choose gas-fired boilers as boiler equipment for steam, heating, and bathing. Gas-fired hot water boilers include gas-fired heating boilers and gas-fired bathing boilers. With the realization of the national "West-East Gas Pipeline" project, gas-fired boilers have gradually become the first choice for people.

[0003] However, water pressure may fluctuate when the boiler is used for heating. A sudden increase in water pressure may put pressure on the pipes, reducing their lifespan, while a decrease in water pressure may result in insufficient water supply to users.

[0004] In view of this, we have studied and improved the existing problems and provided a constant pressure circulation device for gas boilers. The aim of this technology is to solve the problems and improve its practical value. Utility Model Content

[0005] The purpose of this invention is to provide a constant pressure circulation device for gas-fired boilers to solve the problems and deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a constant pressure circulation device for a gas-fired boiler, which is achieved by the following specific technical means:

[0007] A constant pressure circulation device for a gas-fired boiler includes: a water storage tank, an inlet pipe, a water pump, an outlet pipe, a connecting pipe, a constant pressure tank, a container, a glass plate, a piston block, a spring, a lead screw, a knob, a slider, an inductive switch, and an inductive block; the top of the water storage tank is provided with an inlet pipe, and both ends of the water pump are fixedly connected to the inlet pipe, and an outlet pipe is provided on the outer wall of the lower end of the water storage tank; the water storage tank and the constant pressure tank are fixedly connected by a connecting pipe, and the constant pressure tank has container troughs on both sides, with the glass plate sealed and fixed to the inner wall of the container trough; the piston block... The spring is connected to the inner wall of the constant pressure tank, and its two ends are inserted into the inner wall of the constant pressure tank and the top of the piston block; the two ends of the lead screw are mounted on the inner walls of the upper and lower ends of the container through bearings, and a knob is inserted into the top of the lead screw; the slider is inserted into the inner wall of the container through a clearance fit sliding method, and the slider and the lead screw are connected by a threaded rotation method; the inductive switch is bolted to the outer wall of the slider, and inductive blocks are fixedly installed on the upper and lower sides of the piston block, and the inductive switch is connected to the water pump signal.

[0008] As a further optimization of this technical solution, the glass plate of the constant pressure circulation device for gas boiler of this utility model has an arc-shaped plate structure, and the curvature of the glass plate matches the inner wall of the constant pressure tank.

[0009] As a further optimization of this technical solution, the glass plate and the inner wall of the constant pressure tank of the constant pressure circulation device for gas boiler of this utility model are cylindrical inner cavities for accommodating piston blocks, and the piston blocks are slidably connected to the inner walls of the constant pressure tank and the glass plate by means of insertion.

[0010] As a further optimization of this technical solution, the upper end of the inner wall of the constant pressure tank and the upper end of the piston block of the constant pressure circulation device for gas boilers of this utility model are provided with cylindrical protrusions for installing springs. When the water pressure in the storage tank increases instantaneously, the water in the storage tank can be forced into the container, pushing the piston block upward. When the water pressure in the storage tank decreases instantaneously, the spring can force the water in the constant pressure tank into the storage tank, which can play a role in stabilizing the pressure.

[0011] As a further optimization of this technical solution, the constant pressure circulation device for gas boilers of this utility model has round holes at both ends of the tank for installing bearings, and the two ends of the lead screw are rotatably connected to the inner wall of the tank through the bearing insertion method.

[0012] As a further optimization of this technical solution, the outer wall of the slider in the constant pressure circulation device for a gas-fired boiler of this utility model is provided with a threaded hole for engaging the lead screw. Rotating the knob can adjust the position of the sliders on both sides, adjust the distance between the two inductive switches, and adjust the sensitivity of the water inlet according to the instantaneous changes in water pressure.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] 1. The glass sheet of this utility model has an arc-shaped plate structure, and the curvature of the glass sheet matches the inner wall of the constant pressure tank; the glass sheet and the inner wall of the constant pressure tank are cylindrical inner cavities for accommodating the piston block, and the piston block is slidably connected to the inner wall of the constant pressure tank and the glass sheet by an insertion method; the upper end of the inner wall of the constant pressure tank and the upper end of the piston block are provided with cylindrical protrusions for installing springs. When the water pressure in the storage tank increases instantaneously, the water in the storage tank can be forced into the trough, pushing the piston block upward. When the water pressure in the storage tank decreases instantaneously, the spring can force the water in the constant pressure tank into the storage tank, which can play a role in stabilizing pressure.

[0015] 2. The upper and lower ends of the container of this utility model are provided with round holes for installing bearings, and the two ends of the lead screw are rotatably connected to the inner wall of the container through the bearing insertion method; the outer wall of the slider is provided with threaded holes for matching the lead screw; rotating the knob can adjust the position of the sliders on both sides, and can adjust the distance between the two inductive switches, and adjust the sensitivity of water inlet according to the instantaneous change of water pressure.

[0016] 3. This utility model improves the constant pressure circulation device used in gas boilers, and has the advantages of reasonable structural design, stable instantaneous water pressure, and flexible water flow adjustment, thus effectively solving the problems and shortcomings of existing technologies and equipment. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0021] Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0022] In the diagram: 1. Water storage tank; 2. Inlet pipe; 3. Water pump; 4. Outlet pipe; 5. Connecting pipe; 6. Constant pressure tank; 7. Container trough; 8. Glass plate; 9. Piston block; 10. Spring; 11. Lead screw; 12. Knob; 13. Slider; 14. Induction switch; 15. Induction block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1 to 4 This utility model provides a specific technical implementation scheme for a constant pressure circulation device for a gas-fired boiler:

[0025] A constant pressure circulation device for a gas-fired boiler includes: a water storage tank 1, an inlet pipe 2, a water pump 3, an outlet pipe 4, a connecting pipe 5, a constant pressure tank 6, a container 7, a glass plate 8, a piston block 9, a spring 10, a lead screw 11, a knob 12, a slider 13, an induction switch 14, and an induction block 15; the top of the water storage tank 1 is provided with the inlet pipe 2, and both ends of the water pump 3 are fixedly connected to the inlet pipe 2, and the outer wall of the lower end of the water storage tank 1 is provided with the outlet pipe 4; the water storage tank 1 and the constant pressure tank 6 are fixedly connected by the connecting pipe 5. Furthermore, the constant pressure tank 6 has a container 7 on both sides, and the glass plate 8 is sealed and fixed on the inner wall of the container 7. The upper and lower ends of the container 7 are provided with round holes for installing bearings, and the two ends of the lead screw 11 are rotatably connected to the inner wall of the container 7 by bearing insertion. The outer wall of the slider 13 is provided with threaded holes for matching the lead screw 11. Rotating the knob 12 can adjust the position of the sliders 13 on both sides, and can adjust the distance between the two inductive switches 14, so as to adjust the sensitivity of water inlet according to the instantaneous change of water pressure.

[0026] The glass plate 8 has an arc-shaped plate structure, and the curvature of the glass plate 8 matches the inner wall of the constant pressure tank 6. The glass plate 8 and the inner wall of the constant pressure tank 6 are cylindrical cavities for accommodating the piston block 9, and the piston block 9 is slidably connected to the inner wall of the constant pressure tank 6 and the glass plate 8 by a plug-in method. The upper end of the inner wall of the constant pressure tank 6 and the upper end of the piston block 9 are provided with cylindrical protrusions for installing the spring 10. When the water pressure in the water storage tank 1 increases instantaneously, the water in the water storage tank 1 can be forced into the container 7, pushing the piston block 9 upward. When the water pressure in the water storage tank 1 decreases instantaneously, the spring 10 can force the water in the constant pressure tank 6 into the water storage tank 1, which can play a role in stabilizing the pressure.

[0027] The piston block 9 is movably connected to the inner wall of the constant pressure tank 6, and the two ends of the spring 10 are inserted into the inner wall of the constant pressure tank 6 and the top of the piston block 9; the two ends of the lead screw 11 are mounted on the inner walls of the upper and lower ends of the container 7 through bearings, and the top of the lead screw 11 is inserted into the knob 12; the slider 13 is inserted into the inner wall of the container 7 through a clearance fit sliding method, and the slider 13 and the lead screw 11 are connected by a threaded rotation method; the induction switch 14 is bolted to the outer wall of the slider 13, and the induction blocks 15 are fixedly installed on the upper and lower sides of the piston block 9, and the induction switch 14 is signal connected to the water pump 3.

[0028] Specific implementation steps:

[0029] Water inlet pipe 2 connects to the boiler, and water from the boiler flows into water storage tank 1 and out through water outlet pipe 4. The water pressure in water storage tank 1 forces some water into constant pressure tank 6. When the water pressure in water storage tank 1 increases instantaneously, the water in water storage tank 1 can be forced into container 7, pushing piston block 9 upward. When the water pressure in water storage tank 1 decreases instantaneously, spring 10 can force water from constant pressure tank 6 into water storage tank 1, which can play a role in stabilizing pressure. When sensing block 15 moves to sensing switch 14, the water flow rate can be adjusted to stabilize the water pressure in water storage tank 1. Rotating knob 12 can adjust the position of sliders 13 on both sides, and can adjust the distance between the two sensing switches 14, adjusting the sensitivity of the inlet flow rate according to the instantaneous change of water pressure.

[0030] In summary: This constant pressure circulation device for a gas-fired boiler features an arc-shaped glass plate structure, the curvature of which matches the inner wall of the constant pressure tank. Both the glass plate and the inner wall of the constant pressure tank form cylindrical cavities to accommodate a piston block, which is slidably connected to the inner walls of the constant pressure tank and the glass plate via an insertion method. Both the upper end of the inner wall of the constant pressure tank and the upper end of the piston block are equipped with cylindrical protrusions for mounting springs. When the water pressure in the storage tank increases instantaneously, water in the storage tank is forced into the receiving trough, pushing the piston block upwards. When the water pressure in the storage tank decreases instantaneously, the spring forces water from the constant pressure tank into the storage tank. In the middle, it can play a role in stabilizing pressure; the upper and lower ends of the container have round holes for installing bearings, and the two ends of the lead screw are rotatably connected to the inner wall of the container through the bearing insertion method; the outer wall of the slider has threaded holes for matching the lead screw; rotating the knob can adjust the position of the sliders on both sides, and can adjust the distance between the two inductive switches, and adjust the sensitivity of water inlet according to the instantaneous change of water pressure; through the improvement of the constant pressure circulation device for gas boiler, it has the advantages of reasonable structural design, stable instantaneous water pressure, and flexible water flow adjustment, thus effectively solving the problems and shortcomings in the existing technology and equipment.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A constant pressure circulation device for a gas boiler, comprising: The utility model provides a water storage tank (1), water inlet pipe (2), water pump (3), water outlet pipe (4), connecting pipe (5), constant pressure tank (6), container groove (7), glass sheet (8), piston block (9), spring (10), lead screw (11), knob (12), sliding block (13), induction switch (14), induction block (15), its characterized in that: the top of water storage tank (1) is equipped with water inlet pipe (2), and the both ends of water pump (3) are fixedly connected with water inlet pipe (2), and the outer wall on the lower end of water storage tank (1) is equipped with water outlet pipe (4);Water storage tank (1) is fixedly connected with constant pressure tank (6) through connecting pipe (5), and the both sides of constant pressure tank (6) are equipped with container groove (7), and glass sheet (8) is sealingly fixed on the inner wall of container groove (7);Piston block (9) is movably connected on the inner wall of constant pressure tank (6), and the both ends of spring (10) are insertedly connected with the inner wall of constant pressure tank (6) and the top of piston block (9);The both ends of lead screw (11) are installed on the inner wall of the upper and lower ends of container groove (7) through bearing, and the top of lead screw (11) is insertedly connected with knob (12);Sliding block (13) is insertedly connected on the inner wall of container groove (7) through clearance fit sliding mode, and sliding block (13) is connected with lead screw (11) through screw thread rotation mode;Induction switch (14) is bolted on the outer wall of sliding block (13), and induction block (15) is fixedly installed on the upper and lower sides of piston block (9), and induction switch (14) is signal connected with water pump (3).

2. The constant pressure circulation device for gas boilers according to claim 1, characterized in that: The glass sheet (8) is an arc plate structure, and the curvature of the glass sheet (8) is consistent with the inner wall of the constant pressure tank (6).

3. The constant pressure circulation device for gas boilers according to claim 1, characterized in that: The glass sheet (8) and the inner wall of the constant pressure tank (6) are cylindrical cavities for accommodating the piston block (9), and the piston block (9) is slidably connected to the inner walls of the constant pressure tank (6) and the glass sheet (8) by insertion.

4. The constant pressure circulation device for gas boilers according to claim 1, characterized in that: The upper end of the inner wall of the constant pressure tank (6) and the upper end of the piston block (9) are each provided with a cylindrical protrusion for mounting the spring (10).

5. The constant pressure circulation device for gas boilers according to claim 1, characterized in that: The upper and lower ends of the container groove (7) are provided with circular holes for mounting bearings, and the both ends of the lead screw (11) are rotatably connected to the inner walls of the container groove (7) by the bearings.

6. The constant pressure circulation device for gas boilers according to claim 1, characterized in that: The outer wall of the sliding block (13) is provided with a threaded hole for cooperating with the lead screw (11).

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