CN213467045U

CN213467045U - Front filter

Info

Publication number: CN213467045U
Application number: CN202022019563.9U
Authority: CN
Inventors: 胡效军; 陈志超
Original assignee: HAINING SHUIXIANG WATER PURIFICATION EQUIPMENT CO Ltd
Current assignee: HAINING SHUIXIANG WATER PURIFICATION EQUIPMENT CO Ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-06-18
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a pre-filter, which comprises a controller and a filter body; the two ends of the filter body are respectively connected with a water inlet pipeline and a water outlet pipeline; a detector for detecting the flow and/or pressure of the fluid is arranged in the water outlet pipeline; the controller is provided with a leak detection circuit used for acquiring data of the detector when a water inlet ball valve in the water inlet pipeline is closed. The controller acquires the fluid flow and/or the pressure through the leakage detection circuit so as to analyze and judge the water leakage condition of the water outlet pipeline and the pipeline behind the water outlet pipeline, so that an operator can know the state of the water outlet pipeline and the pipeline behind the water outlet pipeline in time, the maintenance is convenient, the economic loss of a user is reduced, and irreparable loss caused by short circuit of electric appliances near the pipeline due to water leakage of the pipeline is avoided.

Description

Front filter

Technical Field

The utility model relates to a water purification field especially relates to a leading filter.

Background

The pre-filter is a first coarse filter device applied to water used in a whole house, and can filter silt, rust and large-particle substances in tap water. The pre-filter is usually arranged behind the water meter of the water inlet pipeline, so that a large amount of precipitated impurities generated in the pipe network can be ensured not to continuously flow backwards through the pre-filter, a hidden laying pipeline, a faucet and related electric appliances behind the pre-filter are protected, and the damage to a human body caused by the ingestion of the precipitated impurities can be avoided.

However, as the service life of the household pipeline increases, the problem of aging inevitably occurs, and further the condition of water leakage occurs at the pipeline welding position.

The pre-filter in the current market only has a filtering function and cannot timely know the water leakage condition of the pipeline, so that direct economic loss can be caused to users, and even the use of electric appliances near the pipeline can be influenced, and the damage of electric wire short circuit is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a leading filter can detect the condition of leaking at leading filter rear, and convenience of customers in time maintains the pipeline, guarantee water safety.

In order to achieve the above object, the present invention provides a prefilter, comprising a controller and a filter body; the two ends of the filter body are respectively connected with a water inlet pipeline and a water outlet pipeline; a detector for detecting the flow and/or pressure of the fluid is arranged in the water outlet pipeline; the controller is provided with a leakage detection circuit for acquiring data of the detector when a water inlet ball valve in the water inlet pipeline is closed.

Preferably, the water inlet ball valve is connected with a first motor; the controller controls the first motor to close and open the water inlet ball valve.

Preferably, a second motor is connected with the sewage ball valve of the filter body; the controller controls the first motor and the second motor to synchronously close the water inlet ball valve and the sewage discharge ball valve.

Preferably, the detector is embodied as a first pressure sensor.

Preferably, the controller is connected with an alarm; the leakage detection circuit acquires the pressure difference of the first pressure sensor in a detection period and compares the pressure difference with a set value;

when the pressure difference is larger than the set value, the controller starts the alarm; and when the pressure difference is smaller than the set value, the controller closes the alarm.

Preferably, the controller is provided with a self-locking circuit for controlling the motor to close the water inlet ball valve; the leakage detection circuit acquires the pressure difference of the first pressure sensor in a detection period and compares the pressure difference with a set value;

when the pressure difference is larger than the set value, the controller starts the self-locking circuit; and when the pressure difference is smaller than the set value, the controller closes the self-locking circuit.

Preferably, the device further comprises an adapter; the pipe wall of the water outlet pipeline is provided with a threaded hole; the bottom periphery of adapter is equipped with and is used for closing soon and sealing connection the external screw thread of screw hole, the detection head of detector inserts the adapter in order to communicate in outlet conduit's inner chamber.

Preferably, a sealing ring is arranged between the threaded hole and the external thread.

Preferably, a second pressure sensor is arranged in the water inlet pipeline.

Compared with the prior art, the utility model provides a leading filter includes filter body and has the controller of leak hunting circuit.

The two ends of the filter body are respectively connected with a water inlet pipeline and a water outlet pipeline; wherein, be equipped with into water ball valve in the metal pipeline, be equipped with the detector that is used for detecting fluid flow and/or pressure in the outlet conduit. Usually, the bottom of the filter body is also provided with a sewage ball valve.

When the water inlet ball valve, the sewage discharge ball valve and the water using end of a user are closed, the fluid in the water outlet pipeline and the pipeline behind the water outlet pipeline is in a static state, the total volume of the fluid is constant, therefore, the flow rate of the fluid is 0, and the pressure is constant, namely, no pressure difference exists. Once the water leakage condition exists in the water outlet pipeline and the pipeline behind the water outlet pipeline, the fluid is in a flowing state, the flow rate is not 0, and the total volume of the fluid is gradually reduced, namely, a pressure difference exists. Therefore, whether the water leakage phenomenon exists in the water outlet pipeline and the pipeline behind the water outlet pipeline or not can be analyzed and judged according to the fluid flow data and/or the pressure data acquired by the detector.

And the leak detection circuit of the controller is used for acquiring data of the detector when the water inlet ball valve in the water inlet pipeline is closed. In the above description, since the blowdown ball valve is in a non-operating state, i.e., an off state, in most cases, the leak detection circuit of the controller actually obtains the data of the detector when the water inlet ball valve, the blowdown ball valve, and the water using end of the user are turned off.

It is thus clear that, compare in prior art, the utility model provides a leading filter adds the detector and has the controller of circuit that leaks hunting, and the detector combines the controller can the analysis to judge the condition of leaking of outlet conduit and rear pipeline, is favorable to operating personnel in time to learn the state of outlet conduit and rear pipeline, convenient maintenance, reduces user's economic loss, avoids leading to near the electrical apparatus short circuit of pipeline and bringing the loss that can not be retrieved because of the pipeline leaks.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a pre-filter according to an embodiment of the present invention when a water inlet ball valve is opened;

fig. 2 is a schematic partial structural view of a prefilter according to an embodiment of the present invention;

fig. 3 is a schematic flow diagram of fluid in a pre-filter according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of the pre-filter according to the embodiment of the present invention when the water inlet ball valve is closed.

The filter comprises a filter body 1, a water inlet pipeline 11, a water outlet pipeline 12, a threaded hole 121, a water inlet ball valve 13, a pollution discharge ball valve 14, a first pressure sensor 2, a first motor 3 and a 4-adapter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a pre-filter according to an embodiment of the present invention when a water inlet ball valve is opened; fig. 2 is a schematic partial structural view of a prefilter according to an embodiment of the present invention; fig. 3 is a schematic flow diagram of fluid in a pre-filter according to an embodiment of the present invention; fig. 4 is a schematic structural diagram of the pre-filter according to the embodiment of the present invention when the water inlet ball valve is closed.

The utility model provides a leading filter, including controller, filter body 1 and detector.

The two ends of the filter body 1 are respectively connected with a water inlet pipeline 11 and a water outlet pipeline 12, and the water inlet pipeline 11 is communicated with a water source at the front end of the pre-filter so as to provide water to be filtered from the water inlet pipeline 11 to the pre-filter. The water outlet pipe 12 is connected to the rear end of the pre-filter, and is used for allowing filtered water to flow out of the water outlet pipe 12.

The filter body 1 can include the bottle and be located the sewage pipes of bottle bottom, treats that filterable water enters into the bottle from inlet channel 11 in, and after the bottle filters, clean water flows out from outlet conduit 12, and the sewage that filters out flows out from the sewage pipes of bottle bottom. The drain pipe is opened only when the filter body 1 performs the drain operation, and is closed in the rest time periods, and the drain operation frequency is low, so that the drain pipe is closed most of the time for the pre-filter. Wherein the opening and closing of the waste pipe is controlled by a waste ball valve 14 in the waste pipe.

The utility model provides an among the leading filter, be equipped with the detector that is used for detecting fluid flow and/or pressure in outlet conduit 12, the controller is equipped with the circuit that leaks hunting.

When the inlet ball valve 13 and the drainage pipe in the inlet pipe 11 are closed and the water consuming end downstream of the pre-filter is not opened, the water in the filter body 1 and the outlet pipe 12 should be in a static state, and at this time, the detector will detect that the fluid flow rate is 0 or the pressure difference of the fluid in a certain period is 0. However, since the outlet pipe 12 of the pre-filter and the pipes behind the outlet pipe may have a water leakage phenomenon due to pipe rupture, even when the inlet ball valve 13, the waste ball valve 14, and the water end are closed, the detector disposed in the outlet pipe 12 can detect that the flow rate of the fluid is not 0 or the pressure difference of the fluid in a certain period is not 0 due to the water leakage phenomenon. In short, in this embodiment, the detection data of the detector can be used as a basis for determining whether the outlet conduit 12 and the conduit behind the outlet conduit are damaged or leaked.

On the basis, the utility model discloses a controller is equipped with the circuit that leaks hunting, and the circuit that leaks hunting is used for acquireing the data that the detector detected when intake ball valve 13 closes. Based on this data, the operator can manually read and analyze the data to determine whether the outlet conduit 12 and the conduit behind it are broken, so as to subsequently manually shut down the pre-filter and repair the conduit. In addition, based on this data, the controller may also automatically acquire and analyze the data, and then automatically control the pre-filter to be turned off and on.

Wherein, the closing of prefilter is including cutting off the water source of this prefilter front end and closing into water ball valve 13 two kinds of states, and the opening of prefilter is including opening into water ball valve 13 under the prerequisite of the water source of this prefilter front end of switch-on.

To sum up, the utility model provides a leading filter has the controller of the circuit of leaking hunting through addding and has add the detector in outlet conduit 12 and realized the hourglass of outlet conduit 12 and rear pipeline, is favorable to operating personnel in time to learn the state of outlet conduit 12 and rear pipeline, convenient maintenance reduces user's economic loss, avoids leading to near the electrical apparatus short circuit of pipeline and bringing the loss of not recalling because of the pipeline leaks.

The pre-filter provided by the present invention will be further described with reference to the accompanying drawings and embodiments.

On the basis of the embodiment, the utility model provides an among the leading filter, the ball valve 13 of intaking is connected with first motor 3, and first motor 3 is connected with the controller, and the steerable first motor 3 of controller is closed and is opened, and then realizes opening automatically and close the ball valve 13 of intaking through first motor 3.

Further, the utility model provides an among the leading filter, filter body 1's blowdown ball valve 14 is connected with the second motor, and the second motor is connected with the controller, and the first motor of controller control 3 and the synchronous action of second motor to close into water ball valve 13 and blowdown ball valve 14 simultaneously. The purpose of this setting is to ensure that the blowdown ball valve 14 is in a closed state when the detector performs leak detection, and to avoid inaccurate data acquired by the detector due to misoperation.

Because the prefilter provided by the above embodiment adopts the controller, the first motor 3 and the second motor to automatically control the opening and closing of the water inlet ball valve 13 and the sewage draining ball valve 14, the controller can be set to periodically and automatically execute the leakage detection operation at certain time intervals, so that the water safety of users can be maintained reliably for a long time.

For example, the controller may close the water inlet ball valve 13 and the sewage ball valve 14 periodically in a period of 15 days or 30 days, and acquire the detection data of the detector. If the water outlet pipeline 12 and the pipeline behind the water outlet pipeline are judged to have no leakage condition based on the detection data of the detector, the controller opens the water inlet ball valve 13 and the sewage ball valve 14 to continue to execute the normal filtering operation of the pre-filter. If the water outlet pipeline 12 and the pipeline behind the water outlet pipeline are judged to have leakage conditions based on the detection data of the detector, the controller forcibly closes the water inlet ball valve 13 and the sewage ball valve 14. In this process, the controller can remind the user to repair the water outlet pipe 12 and the pipes behind it in time through the alarm device. Of course, it is also possible that the user actively recognizes the state in which the controller currently performs the forced closing of the water inlet ball valve 13 and the soil exhaust ball valve 14 because normal water use is not possible.

Wherein the detector may particularly be provided as the first pressure sensor 2. The first pressure sensor 2 is used to detect the pressure of the fluid in the water pipe 12, and if the water outlet pipe 12 and the pipe behind it are not leaking and the user water end is in a closed state, the fluid in the pipe between the water outlet pipe 12 and the user water end applies a constant pressure to the detection head of the detector because the fluid is static and the total volume is constant. In short, in the above case, the pressure difference detected by the first pressure sensor 2 in the detection period is theoretically 0. Wherein, the detection period can be 10min, and can also be 1h or longer.

Of course, considering that the fluid between the outlet pipe 12 and the user water end is interfered by external environment and the like, the fluid is not completely static, and therefore, the actually detected pressure difference in the detection period still has certain fluctuation, but the fluctuation amount is smaller than the pressure difference caused by water leakage, and is generally not more than 0.05 MPa. Therefore, the controller can use 0.05MPa as a set value, and when the pressure difference detected by the detector in the detection period is not more than 0.05MPa, the controller judges that the water outlet pipeline 12 and the pipeline behind the water outlet pipeline have no leakage; when the pressure difference detected by the detector in the detection period is larger than 0.05Mpa, the controller judges that the water outlet pipeline 12 and the pipeline behind the water outlet pipeline have leakage.

In order to achieve a better technical effect, the controller is connected with an alarm. In this example, the leakage detection circuit acquires the pressure difference of the first pressure sensor 2 in a detection period and compares the pressure difference with a set value, and when the pressure difference is greater than the set value, the controller starts an alarm; and when the pressure difference is smaller than the set value, the controller turns off the alarm.

Wherein, the alarm can be set as a device which emits sound and light signals outwards so as to timely and reliably transmit information to users.

In addition, the controller is also provided with a self-locking circuit for controlling the first motor 3 to close the water inlet ball valve 13; the leakage detection circuit acquires the pressure difference of the first pressure sensor 2 in a detection period and compares the pressure difference with a set value; when the pressure difference is greater than a set value, the controller starts the self-locking circuit; when the pressure difference is smaller than a set value, the controller closes the self-locking circuit.

Wherein, self-locking circuit is used for forcing to close into water ball valve 13, before user's not maintenance outlet conduit 12 and the pipeline behind it, self-locking circuit control first motor 3 maintains into water ball valve 13's off-state.

To the utility model discloses the detector that adopts, accessible adapter 4 is connected in outlet conduit 12. In this example, the detection head of the detector is inserted into the adapter 4, and the contact surface of the two ensures water tightness; the outlet pipe 12 is closed to form a threaded hole 121, the outer periphery of the bottom of the adapter 4 is provided with external threads, and the adapter 4 is screwed on the outlet pipe 12 through the external threads to realize relative fixing and water sealing with the outlet pipe 12. Wherein the detector head of the detector is insertable into and extends out of the bottom end face of the adapter 4 so as to extend into the outlet conduit 12 when the adapter 4 is mounted in the outlet conduit 12. In addition, the inside of the adapter 4 can be provided with a communicated hole cavity, the detection head of the detector is inserted into a part of the hole cavity, and when the adapter 4 is installed on the water outlet pipeline 12, the fluid in the water outlet pipeline 12 can be communicated to the detection head of the detector through the hole cavity.

In order to achieve a better sealing effect, a sealing ring is arranged between the threaded hole 121 of the water outlet pipe 12 and the external thread of the adapter 4. The sealing ring can adopt an O-shaped rubber sealing ring, and during installation, the sealing ring is sleeved on the periphery of the bottom of the adapter 4 so as to be extruded between the adapter 4 and the water outlet pipeline 12 when the adapter and the water outlet pipeline are screwed. Referring to fig. 1 to 4, the tube wall of the water outlet tube 12 is provided with an outwardly convex ring structure, and the threaded hole 121 is disposed on the inner wall of the ring structure; the lower part of the adapter 4 is provided with a circular step surface distributed downwards, and external threads are arranged on part of the adapter 4 below the circular step surface. Thus, the sealing ring fitted between the adapter 4 and the outlet conduit 12 may be clamped between the circular step surface and the top surface of the annular structure.

Except for the first pressure sensor 2 arranged in the water outlet pipe 12, the pre-filter provided by the utility model can also be provided with a second pressure sensor in the water inlet pipe 11. Compared with the first pressure sensor 2, the second pressure sensor is mainly used for detecting the fluid pressure in the water inlet pipeline 11, so that a user can conveniently obtain the pressure of the water inlet end of the pre-filter without a leakage detection function.

The above is a detailed description of the pre-filter provided by the present invention. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A pre-filter, characterized by comprising a controller and a filter body (1); two ends of the filter body (1) are respectively connected with a water inlet pipeline (11) and a water outlet pipeline (12); a detector for detecting the flow and/or pressure of the fluid is arranged in the water outlet pipeline (12); the controller is provided with a leakage detection circuit used for acquiring data of the detector when a water inlet ball valve (13) in the water inlet pipeline (11) is closed.

2. The pre-filter according to claim 1, characterised in that a first electric motor (3) is connected to the ball valve (13); the controller controls the first motor (3) to close and open the water inlet ball valve (13).

3. The pre-filter according to claim 2, characterised in that a second electric motor is connected to the blow-off ball valve (14) of the filter body (1); the controller controls the first motor (3) and the second motor to synchronously close the water inlet ball valve (13) and the sewage discharge ball valve (14).

4. Prefilter according to claim 2, wherein said detector is in particular a first pressure sensor (2).

5. The prefilter of claim 4 wherein an alarm is connected to said controller; the leakage detection circuit acquires the pressure difference of the first pressure sensor (2) in a detection period and compares the pressure difference with a set value;

6. The prefilter according to claim 4 wherein said controller is provided with a self-locking circuit to control said first motor (3) to close said inlet ball valve (13); the leakage detection circuit acquires the pressure difference of the first pressure sensor (2) in a detection period and compares the pressure difference with a set value;

7. The prefilter of claim 1, further comprising an adapter (4); the pipe wall of the water outlet pipeline (12) is provided with a threaded hole (121); the bottom periphery of adapter (4) is equipped with and is used for closing soon and sealing connection the external screw thread of screw hole (121), the detection head of detector inserts adapter (4) in order to communicate in the inner chamber of outlet conduit (12).

8. The prefilter of claim 7 wherein a seal ring is provided between said threaded hole (121) and said external thread.

9. The pre-filter according to any of the claims 4 to 8, characterised in that a second pressure sensor is provided in the water inlet conduit (11).