Water softening device of heat supply system

Abstract

The utility model relates to the technical field of heat supply systems, and particularly discloses a water softening device of a heat supply system, a water supply pump is arranged on the top surface of a buffer water tank, and a softening filtering assembly comprises a supporting shell, a rotary filtering mechanism and a top cover fixed on the top of the supporting shell. The rotary filtering mechanism comprises a connecting column rotationally installed in the center of an inner cavity of the supporting shell, vertical cylinders fixed to the two sides of the connecting column and exchange resin filter elements arranged in the vertical cylinders, the top cover comprises a round cover and a first conical cover and a second conical cover which are arranged on the round cover and correspond to the two vertical cylinders respectively, and a water outlet pipe and a blow-off pipe are correspondingly arranged on the bottom face of the supporting shell. The washing agent supply assembly is used for pumping out a sodium chloride solution, the two ends of the water supply pipe are connected to the output end of the water supply pump and the top of the first conical cover respectively, and the two ends of the liquid conveying pipe are connected to the output end of the washing agent supply assembly and the top of the second conical cover respectively; the problem that a water softening device in a heat supply system is difficult to operate continuously for a long time is well solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating systems, and specifically relates to a soft water device for a heating system. Background Art

[0002] In a heating system, the heating pipeline system is an important part of the heating equipment, and its normal operation is closely related to water quality. Calcium, magnesium and other ions in hard water will produce scale in the pipeline, reducing the heat transfer efficiency of the heating pipeline, and easily causing problems such as pipeline blockage and water leakage. Therefore, softening the water used in the heating pipeline to remove calcium and magnesium ions in hard water is crucial for ensuring the normal operation of the pipeline system.

[0003] When softening water, generally an exchange resin filter element is used to replace calcium, magnesium and other hardness ions in the raw water to achieve softening of the raw water. However, the resin filling amount in the soft water device is limited. After being used for a period of time, the resin is adsorbed and saturated, and the softening ability decreases, and it needs to be regenerated before it can be used continuously. Currently, the common operation for regenerating the exchange resin filter element is to take out the filter element and rinse it with sodium chloride solution. Although it can restore the exchange ability of the resin filter element, the operation is relatively troublesome, the efficiency is low, and when operating, the normal water supply of the heating pipeline needs to be suspended for a long time, thus affecting the heating effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a soft water device for a heating system, which is used to solve the problem that the existing soft water device in the heating system is difficult to operate continuously for a long time.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A soft water device for a heating system, the water supply pump is arranged on the top surface of the buffer water tank and its input end extends to the bottom of the inner cavity of the buffer water tank. The softening and filtering assembly includes a support shell fixed on the outer side wall of the buffer water tank, a rotary filtering mechanism rotatably installed in the inner cavity of the support shell, and a top cover fixed on the top of the support shell. The rotary filtering mechanism includes a connecting column rotatably installed at the axial center position of the inner cavity of the support shell, vertical cylinders fixed on both sides of the connecting column, and exchange resin filter elements sleeved in the inner cavities of the vertical cylinders. The top cover includes a round cover and a first conical cover and a second conical cover arranged on the round cover and corresponding to the two vertical cylinders respectively. The bottom surface of the support shell is respectively provided with a water outlet pipe and a sewage pipe corresponding to the positions of the first conical cover and the second conical cover. The water outlet pipe is connected to the water inlet end of the heating system. The middle part of the top surface of the round cover is provided with a motor for driving the connecting column to rotate. The flushing agent supply assembly is used to pump out sodium chloride solution. The two ends of the water supply pipe are respectively connected to the output end of the water supply pump and the top of the first conical cover. The two ends of the infusion pipe are respectively connected to the output end of the flushing agent supply assembly and the top of the second conical cover.

[0006] Preferably, a bushing fixedly matched with the power output shaft of the motor is fixed at the center of the top surface of the connecting column, and a rotating shaft fixedly matched with the bottom of the support housing is provided at the center of the bottom surface of the connecting column.

[0007] Preferably, the flushing agent supply assembly includes a storage tank fixed on the top surface of the buffer water tank, a liquid pump with an output end extending to the bottom of the inner cavity of the storage tank is provided on the storage tank, and the output end of the liquid pump is connected to the input end of the infusion tube.

[0008] Preferably, a cover plate is hinged at the opening at one end of the top plate of the storage tank, and an emptying valve II is installed at the bottom end of the side wall of the storage tank.

[0009] Preferably, a water inlet head is provided at one end of the top plate of the buffer water tank, and an emptying valve I is installed at the bottom end of the side wall of the buffer water tank.

[0010] Preferably, a water inlet joint connected to the output end of the water supply pipe is connected to the top end of the conical cover I, and a liquid inlet joint connected to the output end of the infusion tube is connected to the top end of the conical cover II.

[0011] Preferably, the support housing includes an outer cylinder and a connecting frame fixed on one side of the outer cylinder and fixedly connected to the outer side wall of the buffer water tank.

[0012] Preferably, a plurality of through holes are uniformly arranged along the circumferential direction on the outer edge of the round cover, and threaded holes are provided at positions corresponding to the through holes on the outer edge of the top end of the outer cylinder.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] A soft water device for a heating system according to the present utility model can facilitate the softening treatment of the water supplied to the heating system through a softening and filtering component, and can quickly rotate different exchange resin filter elements to the soft water position and the flushing position, so as to avoid the problem that the soft water device stops supplying water to the heating system for a long time during the flushing of the exchange resin filter element, and ensure the long-term continuous operation of the soft water device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present utility model;

[0016] Figure 2 is an exploded structural schematic diagram of the softening and filtering component of the present utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the support housing of the present utility model;

[0018] Figure 4Schematic three-dimensional structure diagram of the top cover of the present utility model;

[0019] Figure 5 Schematic three-dimensional structure diagram of the rotary filtering mechanism of the present utility model;

[0020] Figure 6 Schematic three-dimensional structure diagram of the flushing agent supply assembly of the present utility model.

[0021] In the figure: 1 - buffer water tank; 1.1 - water inlet head; 1.2 - drain valve 1;

[0022] 2 - water supply pump;

[0023] 3 - softening and filtering assembly; 3.1 - support housing; 3.1.1 - outer cylinder; 3.1.2 - connecting frame; 3.1.3 - water outlet pipe; 3.1.4 - sewage pipe; 3.1.5 - threaded hole; 3.2 - top cover; 3.2.1 - round cover; 3.2.2 - conical cover 1; 3.2.3 - water inlet joint; 3.2.4 - conical cover 2; 3.2.5 - liquid inlet joint; 3.2.6 - motor; 3.2.7 - perforation; 3.3 - rotary filtering mechanism; 3.3.1 - vertical cylinder; 3.3.2 - exchange resin filter element; 3.3.3 - connecting column; 3.3.4 - bushing; 3.3.5 - rotating shaft;

[0024] 4 - flushing agent supply assembly; 4.1 - storage tank; 4.2 - liquid pump; 4.3 - cover plate; 4.4 - drain valve 2;

[0025] 5 - water supply pipe;

[0026] 6 - infusion pipe. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model.

[0028] Please refer to Figure 1-6 , the present utility model provides a technical solution: a soft water device for a heating system. A water inlet head 1.1 is provided at one end of the top plate of the buffer water tank 1, and a drain valve 1 1.2 is installed at the bottom end of the side wall of the buffer water tank 1. The water supply system replenishes water into the buffer water tank 1 through the water inlet head 1.1 to meet the water consumption of the heating system; the drain valve 1 1.2 is used to regularly empty the buffer water tank 1 for convenient maintenance work such as cleaning.

[0029] The water supply pump 2 is provided on the top surface of the buffer water tank 1, and its input end extends to the bottom of the inner cavity of the buffer water tank 1.

[0030] The softening and filtering assembly 3 includes a support housing 3.1, a rotary filtering mechanism 3.3, and a top cover 3.2. The support housing 3.1 includes an outer cylinder 3.1.1 and a connecting frame 3.1.2 fixed to one side of the outer cylinder 3.1.1 and fixedly connected to the outer side wall of the buffer water tank 1. The top cover 3.2 includes a round cover 3.2.1, a conical cover one 3.2.2, and a conical cover two 3.2.4 provided on the round cover 3.2.1. In the middle of the top surface of the round cover 3.2.1, there is a motor 3.2.6, and the motor 3.2.6 is a servo motor. Among them, a plurality of through holes 3.2.7 are evenly provided along the circumferential direction on the outer edge of the round cover 3.2.1, and threaded holes 3.1.5 are provided at positions corresponding to the through holes 3.2.7 on the outer edge of the top end of the outer cylinder 3.1.1. Bolts are used to fixedly connect the top cover 3.2 and the support housing 3.1 through the through holes 3.2.7 and the threaded holes 3.1.5. The rotary filtering mechanism 3.3 includes a connecting column 3.3.3, vertical cylinders 3.3.1 fixed on both sides of the connecting column 3.3.3, and exchange resin filter elements 3.3.2 sleeved in the inner cavities of the vertical cylinders 3.3.1. At the center of the top surface of the connecting column 3.3.3, there is a shaft sleeve fixedly sleeved and matched with the power output shaft of the motor 3.2.6, and at the center of the bottom surface of the connecting column 3.3.3, there is a rotating shaft 3.3.5 rotatably sleeved and matched with the bottom of the outer cylinder 3.1.1. At positions corresponding to the conical cover one 3.2.2 and the conical cover two 3.2.4 on the bottom surface of the outer cylinder 3.1.1, there are respectively a water outlet pipe 3.1.3 and a sewage discharge pipe 3.1.4, and the water outlet pipe 3.1.3 is connected to the water inlet end of the heating system. Water sealing structures are respectively provided at the top and bottom ends of the vertical cylinder 3.3.1, the bottom ends of the conical cover one 3.2.2 and the conical cover two 3.2.4, and the positions on the bottom surface of the inner cavity of the outer cylinder 3.1.1 corresponding to the peripheries of the tops of the water outlet pipe 3.1.3 and the sewage discharge pipe 3.1.4 to avoid leakage problems when filtering clear water and flushing the filter element.

[0031] The flushing agent supply assembly 4 is used to pump out sodium chloride solution. Among them, the flushing agent supply assembly 4 includes a storage tank 4.1 fixed on the top surface of the buffer water tank 1 and used for storing sodium chloride solution. A liquid pump 4.2 with an output end extending to the bottom of the inner cavity of the storage tank 4.1 is provided on the storage tank 4.1. In order to facilitate adding sodium chloride solution into the storage tank 4.1, a cover plate 4.3 is hinged at the opening at one end of the top plate of the storage tank 4.1; in order to facilitate regular cleaning of the storage tank 4.1, an emptying valve two 4.4 is installed at the bottom end of the side wall of the storage tank 4.1.

[0032] Both ends of the water supply pipe 5 are respectively connected to the output end of the water supply pump 2 and the top of the conical cover one 3.2.2, and a water inlet joint 3.2.3 connected to the output end of the water supply pipe 5 is connected to the top end of the conical cover one 3.2.2.

[0033] Both ends of the infusion tube 6 are respectively connected to the output end of the flushing agent supply assembly 4 and the top of the second conical cover 3.2.4. Among them, the output end of the liquid pump 4.2 is connected to the input end of the infusion tube 6. A liquid inlet joint 3.2.5 connected to the output end of the infusion tube 6 is connected to the top end of the second conical cover 3.2.4.

[0034] In summary, when normally providing water source for the heating system, the water supply pump 2 extracts clear water from the buffer water tank 1, and then outputs it through the water supply pipe 5, the water inlet joint 3.2.3 and the first conical cover 3.2.2. The output clear water passes downward through the corresponding ion exchange resin filter element 3.3.2 to be softened and then enters the heating system downward through the water outlet pipe 3.1.3.

[0035] When the ion exchange resin filter element 3.3.2 in the softened water position is saturated with adsorption and needs to be flushed, at this time, the motor 3.2.6 drives the rotary filtering mechanism 3.3 to rotate quickly by 180°, so that another vertical cylinder 3.3.1 with an internal ion exchange resin filter element 3.3.2 rotates to a position facing the first conical cover 3.2.2; and the vertical cylinder 3.3.1 corresponding to the saturated ion exchange resin filter element 3.3.2 rotates to a position facing the second conical cover 3.2.4. At this time, the liquid pump 4.2 extracts sodium chloride solution from the storage tank 4.1, and discharges it successively through the infusion tube 6, the liquid inlet joint 3.2.5 and the second conical cover 3.2.4. The discharged sodium chloride solution flushes the saturated ion exchange resin filter element 3.3.2 to restore its exchange capacity; the flushed solution discharges downward through the sewage pipe 3.1.4. Thus, the water supply stop time during flushing the ion exchange resin filter element 3.3.2 is greatly reduced.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water softening device for a heating system, characterized in that: include: Buffer water tank (1); A water supply pump (2), wherein the water supply pump (2) is arranged on the top surface of the buffer water tank (1) and the input end of the water supply pump (2) extends to the bottom of the inner cavity of the buffer water tank (1); A softening filter assembly (3), the softening filter assembly (3) comprising a support shell (3.1) fixed to the outer wall of the buffer water tank (1), a rotary filter mechanism (3.3) rotatably mounted in the inner cavity of the support shell (3.1), and a top cover (3.2) fixed to the top of the support shell (3.1), the rotary filter mechanism (3.3) comprising a connecting column (3.3.3) rotatably mounted at the axial center position of the inner cavity of the support shell (3.1), a vertical cylinder (3.3.1) fixed to both sides of the connecting column (3.3.3), and an exchange resin filter element (3.3.2) sleeved in the inner cavity of the vertical cylinder (3.3.1), the The top cover (3.2) comprises a round cover (3.2.1) and a conical cover 1 (3.2.2) and a conical cover 2 (3.2.4) which are arranged on the round cover (3.2.1) and correspond to the two vertical cylinders (3.3.1) respectively; a water outlet pipe (3.1.3) and a sewage pipe (3.1.4) are respectively arranged at positions of the bottom surface of the support shell (3.1) corresponding to the conical cover 1 (3.2.2) and the conical cover 2 (3.2.4); the water outlet pipe (3.1.3) is connected to the water inlet end of the heating system; a motor (3.2.6) for driving the connecting column (3.3.3) to rotate is arranged in the middle of the top surface of the round cover (3.2.1); A flushing agent supply assembly (4), wherein the flushing agent supply assembly (4) is used to pump out a sodium chloride solution; A water supply pipe (5), the two ends of which are respectively connected to the output end of the water supply pump (2) and the top of the conical cover (3.2.2); An infusion tube (6), the two ends of which are respectively connected to the output end of the flushing agent supply assembly (4) and the top of the second conical cover (3.2.4).

2. A water softening device for a heating system according to claim 1, characterized in that: A shaft sleeve that is fixedly sleeved and matched with the power output shaft of the motor (3.2.6) is fixedly provided at the center of the top surface of the connecting column (3.3.3), and a rotating shaft (3.3.5) that is rotatably sleeved and matched with the bottom of the supporting shell (3.1) is provided at the center of the bottom surface of the connecting column (3.3.3).

3. A water softening device for a heating system according to claim 1, characterized in that: The flushing agent supply assembly (4) comprises a storage tank (4.1) fixed to the top surface of the buffer water tank (1), and the storage tank (4.1) is provided with a liquid pump (4.2) whose output end extends to the bottom of the inner cavity of the storage tank (4.1), and the output end of the liquid pump (4.2) is connected to the input end of the infusion tube (6).

4. A water softening device for a heating system according to claim 3, characterized in that: A cover plate (4.3) is hingedly connected to the opening at one end of the top plate of the storage box (4.1), and a second drain valve (4.4) is installed at the bottom end of the side wall of the storage box (4.1).

5. A water softening device for a heating system according to claim 1, characterized in that: A water inlet pipe head (1.1) is provided at one end of the top plate of the buffer water tank (1), and a drain valve (1.2) is installed at the bottom end of the side wall of the buffer water tank (1).

6. A water softening device for a heating system according to claim 1, characterized in that: The top end of the first conical cover (3.2.2) is connected to a water inlet connector (3.2.3) connected to the output end of the water supply pipe (5), and the top end of the second conical cover (3.2.4) is connected to a liquid inlet connector (3.2.5) connected to the output end of the infusion pipe (6).

7. A water softening device for a heating system according to claim 1, characterized in that: The supporting shell (3.1) comprises an outer cylinder (3.1.1) and a connecting frame (3.1.2) fixed to one side of the outer cylinder (3.1.1) and fixedly connected to the outer side wall of the buffer water tank (1).

8. A water softening device for a heating system according to claim 7, characterized in that: The outer edge of the circular cover (3.2.1) is evenly provided with a plurality of through holes (3.2.7) along the circumferential direction, and the outer edge of the top end of the outer cylinder (3.1.1) is provided with threaded holes (3.1.5) at positions corresponding to the through holes (3.2.7).

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