Water heating system

Abstract

The utility model relates to the technical field of water heating, in particular to a water heating system which comprises a water heater, the water heater comprises a shell, a water tank, a heating unit and a water circulation unit, a matching groove is formed in the outer wall of the vertical face of the water tank, an elastic plug connector is fixedly installed in the matching groove, and the elastic plug connector is connected with the shell. The inner wall of the vertical face of the shell is provided with a clamping groove corresponding to the plug connector, when the elastic plug connector corresponds to the inner wall of the vertical face of the shell, the elastic plug connector is extruded by the inner wall of the vertical face of the shell to be recycled in the matching groove, and when the elastic plug connector corresponds to the clamping groove, the elastic plug connector is clamped in the clamping groove. And the clamping grooves can be inserted into the clamping grooves. By means of the assembly relation of the detachable water tank and the shell, the water tank can be easily taken out, so that the work of cleaning the water tank is easy to execute, and the cleaning efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of plumbing, and particularly relates to a plumbing system. Background Art

[0002] Hydronic heating is one of the floor radiant heating methods, which has the advantages of stable and uniform temperature compared with electric heating. Hydronic heating is achieved by laying coils on the floor, with circulating hot water in the pipes. Through the heat medium in the floor radiant layer, the entire floor is evenly heated, and heat is conducted from bottom to top according to the law of the floor's own heat storage and upward heat radiation to achieve the purpose of heating.

[0003] A hydronic heating system generally includes a circulating heating pipe and a water heater. The circulating heating pipe is coiled into a "return" shape or an "S" shape and buried in the cement floor. The water heater can supply flowing hot water to the circulating heating pipe.

[0004] The water tank of the water heater is prone to scale formation after long-term use, which affects the heating efficiency. However, most water heaters in the prior art have a multi-in-one structure, and the water tank in the water heater is not detachable from the housing, making it difficult to clean the water tank and with low efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a hydronic heating system to solve the problem of difficult scale removal in the water tank mentioned in the above background art.

[0006] To achieve the above purpose, the utility model provides a hydronic heating system, including a water heater. The water heater includes a housing, a water tank, a heating unit, and a water circulation unit. A fitting groove is formed on the vertical outer wall of the water tank, and an elastic insertion member is fixedly installed in the fitting groove. A clamping groove corresponding to the insertion member is formed on the vertical inner wall of the housing. When the elastic insertion member corresponds to the vertical inner wall of the housing, it is squeezed by the vertical inner wall of the housing and retracted into the fitting groove. When the elastic insertion member corresponds to the clamping groove, it can be inserted into the clamping groove.

[0007] As a preference, the elastic insertion member includes a mounting frame and a clamping head. The mounting frame is fixedly arranged in the fitting groove. The clamping head is a body block with a narrow head facing the clamping groove, and the wide head of the clamping head is installed on the mounting frame through an elastic member.

[0008] As a preference, the elastic member includes a pair of bow-shaped elastic pieces, and the top of the bow faces the clamping groove.

[0009] As a preference, the cross-sectional shape of the clamping groove is the same as the cross-sectional shape of the head of the clamping head.

[0010] As a preference, the bottom of the clamping groove has an adaptation notch.

[0011] As a preference, the housing is divided by a T-shaped partition into an upper mounting cavity at the upper part, and a placement cavity A and a placement cavity B at the lower part. The water tank is accommodated in the upper mounting cavity, and the water tank is respectively communicated with the placement cavity A and the placement cavity B; the heating unit includes a plurality of electric heating plates arranged on the inner wall of the vertical surface of the housing and the upper surface of the cross partition of the T-shaped partition.

[0012] As a preference, the water circulation unit includes pressure pumps respectively installed in the placement cavity A and the placement cavity B. One interface of the pressure pump installed in the placement cavity A is connected to the liquid inlet pipe, and the other interface is communicated with the inside of the water tank through a pipeline. One interface of the pressure pump installed in the placement cavity B is connected to the liquid return pipe, and the other interface is communicated with the inside of the water tank through a pipeline.

[0013] As a preference, both the liquid inlet pipe and the liquid return pipe extend out of the housing and are respectively connected to two ends of the circulating heating pipe.

[0014] As a preference, the cross-sectional shape of the circulating heating pipe is a flat rectangle.

[0015] As a preference, the top pipe wall of at least a partial length section of the circulating heating pipe extends towards its side to form an extension piece.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] For a water heating system of the present utility model, due to the assembly relationship between the detachable water tank and the housing, the water tank can be easily taken out, which makes the work of cleaning the water tank easy to perform and has higher cleaning efficiency; further, through the setting and cooperation of the elastic plugging member and the plugging groove, the water tank and the housing can be both disassembled and installed, and can be relatively fixed after the water tank is placed in the housing. Without external force, the two will not move relatively.

[0018] For a water heating system of the present utility model, through the setting of the circulating heating pipe with a flat rectangular cross-section, the heat dissipation and contact area of the circulating heating pipe towards the ground surface are increased, and the heating efficiency of the circulating heating pipe for the cement floor can be improved to a certain extent; and the heat radiation surface is further improved through the setting of the extension piece. Description of the Drawings

[0019] Figure 1 Schematically reflects as a whole a water heating system provided by an embodiment of the present application.

[0020] Figure 2 ForFigure 1 Schematic diagram of the connection relationship between the middle circulating heating pipe, the liquid outlet pipe and the liquid return pipe.

[0021] Figure 3 Front sectional view of the water heater provided for the application example.

[0022] Figure 4 For Figure 3 Partial enlarged view of location A in

[0023] In the figure: 1, ground cement layer; 2, liquid return pipe; 3, housing; 4, liquid inlet pipe; 5, circulating heating pipe; 6, adapter pipe; 7, extension piece; 8, water tank; 9, electric heating plate; 10, placement cavity A; 11, placement cavity B; 12, T-shaped partition; 13, pressure pump; 14, clamping groove; 15, mounting bracket; 16, elastic member; 17, clamping head; 18, mating groove. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1 to 4 , this embodiment provides a water heating system, including a water heater, the water heater includes a housing 3, a water tank 8, a heating unit 9 and a water circulation unit. Both the housing 3 and the water tank 8 are generally rectangular. A mating groove 18 is provided on the vertical outer wall of the water tank 8, and an elastic plug-in member is installed on the vertical inner wall of the mating groove 18 by screwing or welding. Correspondingly, a clamping groove 14 is provided on the vertical inner wall of the housing 3 corresponding to the plug-in member. The elastic plug-in member is telescopically arranged in the mating groove 18. Specifically, when the elastic plug-in member corresponds to the vertical inner wall of the housing 3, it is squeezed by the vertical inner wall of the housing 3 and retracted into the mating groove 18. When the elastic plug-in member corresponds to the clamping groove 14, it can be inserted into the clamping groove 14.

[0026] When it is necessary to take out the water tank 8, open the top cover of the housing 3, apply an external force to lift the water tank 8 upward. Under the action of the external force, the water tank 8 and the housing 3 form a relative displacement. The vertical inner wall of the housing 3 squeezes the elastic plug-in member to make the elastic plug-in member retract into the mating groove 18, so that the water tank 8 can be taken out smoothly; when the water tank 8 is reinstalled, the vertical inner wall of the housing 3 squeezes the elastic plug-in member to make the elastic plug-in member retract into the mating groove 18, so that it can be smoothly placed into the housing 3. Until the elastic plug-in member reaches the position where the clamping groove 14 is located, the elastic plug-in member extends out of the mating groove 18 and is inserted into the clamping groove 14. With the above structure, the water tank 8 can be detachably arranged in the housing 3, so that the water tank can be cleaned more conveniently. At the same time, when the water tank 8 is installed in the housing 3, relative displacement between the two can be avoided, which affects the normal operation of the water heater.

[0027] Specifically, the elastic connector includes a mounting bracket 15 and a clamping joint 17. The mounting bracket 15 is a metal bracket, which is screwed or welded to the side wall of the mating groove 18. The clamping joint 17 is a trapezoidal block with a narrow head facing the clamping groove 14. The wide head of the clamping joint 17 is mounted on the mounting bracket 15 through an elastic member 16. The elastic member 16 can be a spring or the like. Preferably, the elastic member 16 includes a pair of arcuate elastic pieces, and the arcuate tops thereof face the clamping groove 14. In this embodiment, the clamping joint 17 includes a top plate as the short side of the trapezoidal block and a pair of inclined plates as the pair of hypotenuses of the trapezoidal block. The top plate and the pair of inclined plates are formed by bending a strip-shaped metal sheet. The elastic member 16 and the mounting bracket 15 together form the long side of the trapezoidal block. Therefore, when the elastic connector is squeezed by the inner wall of the vertical surface of the housing 3, the clamping joint 17 and the elastic member 16 are deformed together so that the clamping joint 17 is retracted into the mating groove 18. Thus, compared with other structures, the water tank 8 can be more easily taken out or placed in the housing 3.

[0028] In order to make the cooperation between the clamping groove 14 and the clamping joint 17 more stable, in other words, to prevent the water tank 8 from moving relative to the housing 3, or the water tank 8 from vibrating in the housing 3, etc., the cross-sectional shape of the clamping groove 14 is the same as the cross-sectional shape of the head of the clamping joint 17, and an adaptation notch is provided at the bottom of the clamping groove 14.

[0029] The housing 3 is divided by a T-shaped partition 12 into an upper mounting cavity at the upper part, and a placement cavity A10 and a placement cavity B11 at the lower part. The water tank 8 is accommodated in the upper mounting cavity. Two through holes are provided at the bottom of the water tank 8, respectively above the placement cavity A10 and the placement cavity B11. Two through holes are correspondingly provided on the transverse partition of the T-shaped partition 12. Thus, the water tank 8 is communicated with the placement cavity A10 and the placement cavity B11 respectively.

[0030] The heating unit 9 includes a plurality of electric heating plates which are screwed to the inner wall of the vertical surface of the housing 3 and the upper surface of the transverse partition of the T-shaped partition 12.

[0031] The water circulation unit includes pressure pumps 13 respectively installed in the placement cavity A10 and the placement cavity B11. One interface of the pressure pump 13 installed in the placement cavity A10 is connected to the liquid inlet pipe 4, and the other interface is communicated with the inside of the water tank 8 through a pipeline. One interface of the pressure pump 13 installed in the placement cavity B11 is connected to the liquid return pipe 2, and the other interface is communicated with the inside of the water tank 8 through a pipeline. Those skilled in the art know that when the pipeline passes through the through holes at the bottom of the water tank 8 and the through holes of the transverse partition of the T-shaped partition 12, a seal should be formed between the outer wall of the pipeline and the inner wall of the through hole, for example, using a seal or waterproof glue.

[0032] The circulating heating pipe 5 is a continuous "S" - shaped coil pipe, and is bent into a straight line at the end of the "S" shape and returns to the level with the starting end. The liquid inlet pipe 4 and the liquid return pipe 2 both extend outside the housing 3 and are respectively connected to both ends of the circulating heating pipe 5. In particular, the cross - sectional shape of the circulating heating pipe 5 is a flat rectangle, that is, it has a large aspect ratio, for example, the aspect ratio is 2.5 or 3.

[0033] The prior art generally believes that circular water pipes are beneficial for the hot water in the circulating heating pipe to dissipate heat to the ground cement layer 1, and then form radiant heat to the indoor space by heating the ground cement layer 1. However, the inventor found that with the progress of the cement floor pouring technology, in fact, when filling the circulating heating pipe, the thickness of the formed ground cement layer 1 gradually decreases. In other words, the distance between the circulating heating pipe and the ground surface is getting smaller and smaller. In this case, and on the basis that a one - way reflective film is provided on the back of the circulating heating pipe 5, it is not necessary to heat the whole ground cement layer 1 before forming radiant heat to the indoor space. The rectangular pipe can increase its projected area on the ground surface with its pipe surface, thereby improving the heating efficiency.

[0034] At the same time, when the pouring thickness of the ground cement layer 1 is getting smaller and smaller, the rectangular pipe can maintain the structural strength between the cement structure and the structure of the circulating heating pipe 5.

[0035] Preferably, the top pipe wall of at least a partial length section of the circulating heating pipe 5 extends towards its side to form an extension piece 7. As Figure 2 shown, it extends towards one side to form an extension piece 7. It can also extend towards both sides respectively to form a pair of extension pieces 7.

[0036] Of course, a complete water heater should also include an electric control unit and a circuit unit. At least the heating unit 9 and the water circulation unit are electrically connected to the electric control unit and the circuit unit, but this does not belong to the technical problems to be solved in this application. They can be any feasible structure or product in the prior art.

[0037] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above - mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A plumbing system, comprising a water heater, the water heater including a housing (3), a water tank (8), a heating unit (9) and a water circulation unit, characterized in that, A fitting groove (18) is formed in the vertical outer wall of the water tank (8), and an elastic plug-in member is fixedly installed in the fitting groove (18). A clamping groove (14) corresponding to the plug-in member is formed in the vertical inner wall of the housing (3). When the elastic plug-in member corresponds to the vertical inner wall of the housing (3), it is squeezed by the vertical inner wall of the housing (3) and retracted into the fitting groove (18). When the elastic plug-in member corresponds to the clamping groove (14), it can be inserted into the clamping groove (14).

2. The plumbing system according to claim 1, wherein, The elastic plug-in member includes a mounting frame (15) and a clamping head (17). The mounting frame (15) is fixedly arranged in the fitting groove (18). The clamping head (17) is a trapezoidal block with a narrow head facing the clamping groove (14). The wide head of the clamping head (17) is mounted on the mounting frame (15) through an elastic member (16).

3. The plumbing system according to claim 2, wherein The elastic member (16) includes a pair of arcuate elastic sheets, and the arcuate tops thereof face the clamping groove (14).

4. The plumbing system according to claim 2, characterized in that, The cross-sectional shape of the clamping groove (14) is the same as the cross-sectional shape of the head of the clamping head (17).

5. The plumbing system according to claim 4, characterized in that, The bottom of the clamping groove (14) has an adaptation notch.

6. The plumbing system according to claim 1, characterized in that, The housing (3) is divided by a T-shaped partition (12) into an upper mounting cavity in the upper part, and a placement cavity A (10) and a placement cavity B (11) in the lower part. The water tank (8) is accommodated in the upper mounting cavity, and the water tank (8) is respectively communicated with the placement cavity A (10) and the placement cavity B (11). The heating unit (9) includes a plurality of electric heating plates arranged on the vertical inner wall of the housing (3) and the upper surface of the horizontal partition of the T-shaped partition (12).

7. The plumbing system according to claim 6, wherein, The water circulation unit includes pressure pumps (13) respectively installed in the placement cavity A (10) and the placement cavity B (11). One interface of the pressure pump (13) installed in the placement cavity A (10) is connected to the liquid inlet pipe (4), and the other interface is communicated with the inside of the water tank (8) through a pipeline. One interface of the pressure pump (13) installed in the placement cavity B (11) is connected to the liquid return pipe (2), and the other interface is communicated with the inside of the water tank (8) through a pipeline.

8. The plumbing system according to claim 7, characterized in that, Both the liquid inlet pipe (4) and the liquid return pipe (2) extend out of the housing (3) and are respectively connected to both ends of the circulating heating pipe (5).

9. The plumbing system according to claim 8, characterized in that The cross-sectional shape of the pipeline of the circulating heating pipe (5) is a flat rectangle.

10. The plumbing system according to claim 9, characterized in that, At least a part of the top pipe wall of the circulating heating pipe (5) extends towards its side to form an extension piece (7).

Images