CN210736339U - Hot water supply system and water softening equipment - Google Patents

Abstract

The embodiment of the specification provides a hot water supply system and water softening installation, and this water softening installation's play water end can be linked together with the end of intaking of hot water supply installation, water softening installation still includes the branch road pipeline parallelly connected with its soft water treatment pipeline when hot water supply installation is in the circulation preheating state, the branch road pipeline is in the open mode just the soft water treatment pipeline is in the closed mode. The embodiment of the specification can reduce the consumption speed of consumables of the water softening equipment.

Description

Hot water supply system and water softening equipment

Technical Field

The specification relates to the technical field of hot water supply systems, in particular to a hot water supply system and water softening equipment.

Background

The inlet water of a hot water supply device (e.g., a water heater) is usually tap water. In some areas, the tap water is hard, and may contain more soluble calcium and magnesium ions, calcium and magnesium compounds, which not only affects the health of users in bathing, but also easily causes scaling and blockage of the pipeline of the hot water supply equipment, and reduces the heating efficiency and service life of the heating component.

For this reason, solutions have been developed for softening the intake water of a hot water supply apparatus using a water softening apparatus. However, the utility model of the present application finds: under the matching use mode of the water softening equipment and the hot water supply equipment, the problem of high consumable consumption of the water softening equipment is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the embodiments of the present disclosure is to provide a hot water supply system and a water softener, so as to reduce the consumption rate of consumables of the water softener.

In order to achieve the above object, in one aspect, the embodiments of the present specification provide a water softening apparatus, a water outlet end of which can be communicated with a water inlet end of a hot water supply apparatus, the water softening apparatus further includes a branch pipeline connected in parallel with a soft water processing pipeline of the water softening apparatus, when the hot water supply apparatus is in a circulation preheating state, the branch pipeline is in an open state, and the soft water processing pipeline is in a closed state.

On the other hand, the embodiment of the present specification further provides a hot water supply system, which includes a hot water supply device and the above water softening device.

As can be seen from the technical solutions provided in the embodiments of the present specification, the water softening plant may include a branch line connected in parallel with the soft water treatment line thereof. So, under the circulation preheats the state, when the branch road pipeline is in the open mode and the soft water treatment pipeline is in the closed condition, the circulating water can get into hot water supply equipment via the branch road pipeline, and no longer flows through the soft water treatment pipeline to realized the bypass to the soft water treatment pipeline, therefore avoided the soft water equipment also to carry out the water softening under the circulation preheats the state, thereby reduced the consumptive material consumption speed of soft water equipment.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present specification, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort. In the drawings:

FIG. 1 is a schematic diagram of a hot water supply system according to some embodiments of the present disclosure;

FIG. 2 is a schematic illustration of a cyclic preheat state in some embodiments herein;

FIG. 3 is a schematic diagram of a water usage status of a user in some embodiments of the present description;

FIG. 4a is a schematic structural diagram of a hot water supply system according to further embodiments of the present disclosure;

FIG. 4b is a schematic diagram of a hot water supply system according to further embodiments of the present disclosure;

FIG. 5 is a schematic view showing the structure of a control device of a water softening apparatus according to some embodiments of the present disclosure.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step should fall within the scope of protection of the present specification. For example, in the following description, forming the second component over the first component may include embodiments in which the first and second components are formed in direct contact, embodiments in which the first and second components are formed in non-direct contact (i.e., additional components may be included between the first and second components), and so on.

Also, for ease of description, some embodiments of the present description may use spatially relative terms such as "above …," "below …," "top," "below," etc., to describe the relationship of one element or component to another (or other) element or component as illustrated in the various figures of the embodiments. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or components described as "below" or "beneath" other elements or components would then be oriented "above" or "over" the other elements or components.

The hot water supply system according to the embodiment of the present disclosure may include a water softening apparatus and a hot water supply apparatus. The hot water supply device can have a circulation preheating function (namely a zero cold water circulation preheating function), so that a user can enjoy hot water when opening a hot water valve communicated with the hot water supply device without waiting for cold water to be exhausted.

In some embodiments of the present disclosure, the hot water supply device may be, for example, a gas water heater, a gas wall-hanging stove, an electric water heater, or an air energy water heater; the water softening plant may be, for example, a salt-adding water softening plant or a salt-free water softening plant, etc. In some exemplary embodiments, the salt-adding water softening apparatus may remove calcium and magnesium ions from water using ion exchange technology, thereby reducing water hardness. In water softening treatment technologies based on ion exchange technology, salts (e.g. sodium chloride) are generally used as regenerants, and therefore salt addition is required. In other exemplary embodiments, the salt-free water softening apparatus may pack calcium and magnesium ions in water into crystals suspended in water using an ion crystallization technique, so that the crystals are not easily scaled in water, and may filter the crystals through a filtering device (e.g., a filtering membrane, etc.), so that the hardness of water may be reduced, and thus, the addition of salt is not required.

In the hot water supply system according to the embodiment of the present disclosure, the water softening apparatus may soften input raw water (e.g., tap water) to reduce hardness thereof, so as to output soft water (i.e., softened water meeting a certain hardness standard). Wherein, the water outlet end of water softening installation can be linked together with the end of intaking of heat supply water installation, so that the soft water that water softening installation made can supply heat supply water installation to can use more healthy hot water, this kind of soft water can also slow down or avoid the scale deposit and the jam of the pipeline of heat supply water installation in addition, thereby can also improve heat supply water installation's heating efficiency and life. The water inlet end of the water softening device can also be communicated with the water outlet end of the hot water supply device so as to form a circulating preheating pipeline.

The utility model discloses the people research discovery, when the soft water treatment pipeline of water softening installation is linked together with the water inlet of heat supply water installation all the time, no matter heat supply water installation is in user water state or circulation preheating state, water softening installation all can carry out the water softening and handle. Thus, the consumption of consumables in the water softening equipment is obviously accelerated, so that the problem of relatively fast consumable consumption of the water softening equipment is easy to occur. In fact, in the circulation preheating state, since the user does not use water, the water softening treatment of the water softening equipment causes resource waste at this time. The consumable material is a material consumed by the soft water treatment pipeline in the process of executing the water softening treatment. For example, in some exemplary embodiments, taking a salt-adding water softening plant as an example, the consumable may be salt as a regenerant; in other exemplary embodiments, taking a salt-free water plant as an example, the consumable may be a filter element or a membrane element or the like in the salt-free water plant.

In view of the above, in order to reduce the consumption rate of consumables of the water softening apparatus, in the embodiment of the present specification, the water softening apparatus may further include a branch line connected in parallel with the water softening treatment line thereof. So, under the circulation preheats the state, when the branch road pipeline is in the open mode and the soft water treatment pipeline is in the closed condition, the circulating water can get into hot water supply equipment via the branch road pipeline, and no longer flows through the soft water treatment pipeline to realized the bypass to the soft water treatment pipeline, therefore avoided the soft water equipment also to carry out the water softening under the circulation preheats the state, thereby reduced the consumptive material consumption speed of soft water equipment.

Referring to fig. 1, in some embodiments herein, a first controllable valve (e.g., as shown at V1 in fig. 1) may be provided on the soft water treatment line, and a second controllable valve (e.g., as shown at V2 in fig. 1) may be provided on the branch line (e.g., as shown in phantom in fig. 1). In this way, in the circulation preheating state, when the first controllable valve is in the closed state and the second controllable valve is in the open state (for example, as shown in fig. 2), the circulating water can enter the hot water supply device through the branch pipeline without flowing through the soft water treatment pipeline, so that the soft water treatment pipeline is bypassed, and the water softening treatment of the soft water device in the circulation preheating state is avoided.

In other embodiments described herein, the junction of the soft water treatment line and the bypass line may be provided with a switching valve (e.g., as shown at V0 in fig. 4a and 4 b). Therefore, in the circulating preheating state, when the channel connected with the soft water treatment pipeline by the switching valve is in the closed state and the channel connected with the branch pipeline by the switching valve is in the open state, the circulating water can also enter the hot water supply device through the branch pipeline and does not flow through the soft water treatment pipeline any more, so that the bypass of the soft water treatment pipeline is realized, and the water softening treatment of the soft water device in the circulating preheating state is also avoided.

In some embodiments of the present disclosure, the junction may be a water inlet branch of the soft water treatment pipeline and the branch pipeline (for example, as shown in fig. 4 a), or a water outlet junction of the soft water treatment pipeline and the branch pipeline (for example, as shown in fig. 4 b). In the embodiment of the present disclosure, the switching valve may have a plurality of operation positions and a plurality of passages, so that the soft water treatment line and the branch line may be controlled to open and close by one valve. In an exemplary embodiment, the switching valve may be, for example, a multi-position, three-way valve (e.g., a four-position, three-way valve), or the like.

Based on the above embodiments, those skilled in the art can understand that the opening and closing of the soft water treatment pipeline and the branch pipeline can be controlled by the valve or valves. In other embodiments of the present disclosure, other implementations may also be implemented as needed, and the present disclosure does not limit this.

In the above-described embodiments, the soft water treatment line of the water softening apparatus means a portion mainly for performing water softening treatment. For example, in the case of a salt and water softening plant, the soft water treatment line may include a resin tank or the like.

For convenience of description, the control principle of the soft water treatment pipeline and the branch pipeline will be described below by taking the example of the first controllable valve on the soft water treatment pipeline and the second controllable valve on the branch pipeline. In other embodiments of the present specification, for example, in an embodiment where a switching valve is provided at the junction of the soft water treatment line and the branch line, reference may be made to the explanation.

In the embodiment shown in fig. 2, valve V3 may be a pressure regulating valve. For example, in some exemplary embodiments, the pressure regulating valve may be a constant pressure valve, a safety valve, or the like. When the hot water supply device is in a standby state and the hot water supply device detects that the water temperature of a water inlet end of the hot water supply device is lower than a set starting temperature, a circulating preheating function can be executed. In the circulation preheating state, because the user does not use water, the hot water valve V4 and the cold water valve V5 are in the closed state, and under the pressurization effect of the circulation pump of the hot water supply device, the pressure regulating valve V3 can be switched from the closed state to the open state in the normal state, so that the hot water output by the hot water supply device can flow back to the hot water supply device through the circulation preheating pipeline (for example, as shown by a black thick solid line in fig. 2), and the circulation preheating is realized until the preset preheating upper limit temperature is reached, and the circulation preheating is stopped.

In the embodiment shown in fig. 3, in the user water use state (i.e., the hot water valve V4 is in an open state, or both the hot water valve V4 and the cold water valve V5 are in an open state), the first controllable valve may be in an open state and the second controllable valve may be in a closed state. In this way, the hot water used by the user can be (or include) soft water. In the water using state of the user, under the pressure relief effect of the water using valves (such as the hot water valve V4 and the cold water valve V5), the water pressure in the pressure regulating valve V3 is not enough to switch from the closed state to the open state under the normal state, so that the hot water output by the hot water supplying device cannot flow back to the hot water supplying device, thereby being beneficial to ensuring the water using of the user.

In some embodiments of the present disclosure, a control device may be disposed on the water softening apparatus. The control means may be arranged to control said first controllable valve to be in a closed state and said second controllable valve to be in an open state when the hot water supply apparatus is in a cyclic warm-up state. In other embodiments of the present disclosure, the control device may be further configured to control the first controllable valve to be in an open state and the second controllable valve to be in a closed state when the hot water supply apparatus is in a user water use state, so as to ensure that soft water is available to a user.

It should be understood that the above embodiments wherein controlling the first controllable valve to be in the closed state refers to: when the first controllable valve is originally in an open state, the first controllable valve can be controlled to be closed, so that the first controllable valve is in a closed state; when the first controllable valve is originally in the closed state, the first controllable valve can be controlled to maintain the closed state. Also, the controlling the second controllable valve to be in the open state in the above embodiments means: when the second controllable valve is originally in a closed state, the second controllable valve can be controlled to be opened, so that the second controllable valve is in an open state; when the second controllable valve is originally in the open state, the second controllable valve may be controlled to maintain its open state. In other embodiments of the present description, reference may be made to the explanations.

In some embodiments of the present description, the control device may include a temperature acquisition unit and a controller. The temperature collection unit may be configured to collect a current water temperature of the water softening apparatus (for example, collect a current water temperature of a water inlet end or a water outlet end of the water softening apparatus). Accordingly, the controller may be configured to control the first controllable valve to be in a closed state and the second controllable valve to be in an open state when the current water temperature reaches the first water temperature threshold. In some embodiments, the first water temperature threshold may be determined according to a cyclical pre-heating range of the water supply device, for example the first water temperature threshold may be a value within the cyclical pre-heating range of the water supply device. In other embodiments, the first water temperature threshold may be close to the lower limit of the circulation preheating range of the water supply apparatus, so that the water softening apparatus may be prevented from performing water softening treatment when the circulation preheating state is started (or at an early stage after the circulation preheating state is started), thereby being beneficial to further reducing the consumption rate of consumables of the water softening apparatus.

In the circulation preheating state, since the water softening apparatus forms a part of the circulation preheating line, the water flowing through the water softening apparatus is heated by circulation to cause the temperature of the water to rise. In the water using state of the user, the water flowing through the water softening plant is normal temperature water as a part of the water using pipeline (for example, as shown by the black bold line in fig. 3), and thus the water temperature is relatively stable. Therefore, based on such a difference, it is possible to confirm whether the water supply apparatus is in the circulation preheating state or not by the water temperature collected by the temperature collecting unit (e.g., T in fig. 1) provided at the water inlet side of the water softening apparatus. In other embodiments, the temperature acquisition unit may also be disposed at any suitable position at the front end of the water inlet end of the hot water supply apparatus, which is not limited in this specification.

In some embodiments herein, the first controllable valve and the second controllable valve may be, for example, solenoid valves, electric valves, or the like. In particular, the first controllable valve and/or the second controllable valve may be integrated into the water softening plant or externally connected to the water softening plant, and may be selected according to the needs.

In some embodiments of the present description, the controller may include, but is not limited to, a Central Processing Unit (CPU), a single chip microcomputer, a Micro Control Unit (MCU), a Digital Signal Processor (DSP), a Programmable Logic Controller (PLC), and the like.

Referring to fig. 5, in some exemplary embodiments, the temperature acquisition unit may include, for example, a temperature sensor and a temperature acquisition circuit. The temperature sensor can be used for sensing the current water temperature of the water softening equipment and outputting a corresponding water temperature signal, and the temperature acquisition circuit can acquire the water temperature signal and provide the water temperature signal to the controller. In other exemplary embodiments, the temperature acquisition circuit may also preprocess the acquired water temperature signal. The preprocessing may include, but is not limited to, signal amplification, signal isolation, signal compensation, and/or analog-to-digital conversion, for example.

Referring to fig. 5, in other embodiments of the present disclosure, in order to improve the accuracy of detecting the preheating state of the circulation, the control device may further include a flow rate collecting unit in consideration of the influence of the external temperature change on the water temperature. The flow collection unit may be used to collect the current flow of the water softening apparatus. Correspondingly, the controller may further control the first controllable valve to be in a closed state and the second controllable valve to be in an open state when the current water temperature reaches the first water temperature threshold and the current flow rate reaches the flow rate threshold.

In the circulating preheating state, the circulating preheating pipeline has the following two characteristics: 1. the water in the circulating preheating pipeline flows circularly, and the water temperature in the circulating preheating pipeline is gradually increased by 2. In view of the fact that the water softening equipment forms a part of the circulating preheating pipeline, the flow collecting unit and the temperature collecting unit can be cooperatively detected, and whether the hot water supply equipment is in a circulating preheating state or not can be accurately confirmed.

In some exemplary embodiments, the flow collection unit may be disposed at an outlet end of the water softening device (for example, as shown by F in fig. 1), and in other embodiments, the flow collection unit may be disposed at any suitable position at a front end of an inlet end of the hot water supply device, which is not limited in this specification.

Continuing to refer to fig. 5, in some exemplary embodiments, the flow acquisition unit may include, for example, a flow sensor and a flow acquisition circuit. The flow sensor can be used for sensing the current flow of the water softening equipment and outputting a corresponding flow signal, and the flow acquisition circuit can acquire the flow signal and provide the flow signal to the controller. In other exemplary embodiments, the flow acquisition circuit may also pre-process the acquired flow signal. The preprocessing may also include, but is not limited to, signal amplification, signal isolation, signal compensation, and/or analog-to-digital conversion, for example.

For convenience of description, the above devices are described as being divided into various units by functions, and are described separately. Of course, the functions of the various elements may be implemented in the same or in multiple hardware implementations.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a device or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such device or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of another like element in a device or apparatus that comprises the element.

The above description is only an example of the present specification, and is not intended to limit the present specification. Various modifications and alterations to this description will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present specification should be included in the scope of the claims of the present specification.

Claims (10)

1. The utility model provides a water softening installation, its water outlet end can be linked together with the end of intaking of heat supply water equipment, its characterized in that, water softening installation still includes the branch road pipeline rather than the soft water treatment pipeline is parallelly connected when heat supply water equipment is in the circulation preheating state, the branch road pipeline is in the open mode just soft water treatment pipeline is in the closed condition.

2. The water softening apparatus of claim 1, wherein the water softening process line has a first controllable valve disposed thereon, and the branch line has a second controllable valve disposed thereon, the first controllable valve being in a closed state and the second controllable valve being in an open state when the hot water supply apparatus is in the circulation preheating state.

3. The water softening apparatus according to claim 1, wherein a switching valve is provided at a junction of the soft water treatment line and the branch line, and when the hot water supply apparatus is in the circulation preheating state, a passage of the switching valve connected to the soft water treatment line is in a closed state, and a passage of the switching valve connected to the branch line is in an open state.

4. The water softening plant of claim 3, wherein the junction comprises a water inlet branch of the soft water treatment pipeline and the branch pipeline.

5. The water softening apparatus of claim 3, wherein the junction comprises a junction of the soft water treatment pipeline and the water outlet of the branch pipeline.

6. The water softening apparatus of claim 2, further comprising:

the temperature acquisition unit is used for acquiring the current water temperature of the water softening equipment;

and the controller is used for controlling the branch pipeline to be in an open state and controlling the soft water treatment pipeline to be in a closed state when the current water temperature reaches a first water temperature threshold value.

7. The water softening apparatus of claim 6, further comprising:

the flow acquisition unit is used for acquiring the current flow of the water softening equipment;

the controller is further configured to control the branch pipeline to be in an open state and control the soft water treatment pipeline to be in a closed state when the current water temperature reaches the first water temperature threshold and the current flow reaches the flow threshold.

8. The water softening apparatus of claim 1, wherein the hot water supply apparatus comprises a gas water heater, a gas wall-hanging stove, an electric water heater, or an air-powered water heater.

9. The water softening plant of claim 1, wherein the water softening plant comprises a salt-added water softening plant or a salt-free water softening plant.

10. A hot water supply system comprising a hot water supply apparatus and the water softening apparatus of any one of claims 1 to 9.

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