Pumping equipment

Abstract

To provide a pump unit capable of simplifying wiring work for cables in facilities.SOLUTION: A pump unit 1 according to this invention supplies to first liquid W1 stored in an external tank S0 or flowing in an external flow path S1, second liquid W2 different from the first liquid. The pump unit includes a pump part 20 for sucking the second liquid and discharging the sucked second liquid, a reception part 60 for receiving a state signal from external measurement equipment S4 which measures state information of the first liquid relating to the operation of the pump part, a control part 30 for controlling the operation of the pump part on the basis of the state signal, a feeding part 50 for creating a first operation voltage to operate the external measurement equipment on the basis of an external voltage supplied from an external power supply, and supplying it to the external measurement equipment, and a housing 10 storing the pump part, the reception part, the control part, and the feeding part.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a pump device. [Background technology]

[0002] In facilities (e.g., water purification plants, baths, swimming pools, etc.) that handle drinking water or water that comes into contact with human skin, a predetermined amount of chemical solution (e.g., aqueous sodium hypochlorite solution) is added to the water to sterilize it. A small pump that allows fine adjustment of the discharge rate is used to add the chemical solution. The operation of the pump is automatically controlled based on the measurement results of measuring devices (e.g., flow meters, residual chlorine concentration meters, etc.) installed in the water piping (see, for example, Patent Document 1).

[0003] In the technology disclosed in Patent Document 1, automatic control of the pump is performed via an external control device connected to the pump and the flowmeter, respectively. The external control device receives a signal indicating the measurement result from the flowmeter, and controls the operating voltage applied to the pump and the timing of application of the operating voltage based on the signal. Therefore, this technology requires cables (signal lines, power lines) to connect between the external control device and the commercial power source, between the external control device and the flowmeter, and between the external control device and the pump. Note that the flowmeter requires a separate cable (power line) to supply the operating voltage.

[0004] Here, the installation locations of the external control device, the measuring device, and the pump, and the water piping structure differ for each facility that handles the water. Furthermore, the installation location of the pump may be limited for each piping structure. Furthermore, the external control device is usually installed in a location that cannot be reached by facility users. Therefore, the external control device, the measuring device, and the pump are installed in closed spaces where sufficient working space cannot be secured. Furthermore, the installation locations of the external control device, the measuring device, and the pump depend on the structure of the facility and may be extremely far apart. Therefore, in the facility, the wiring work of cables for controlling the operation of the pump is likely to become complicated. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-202274 A Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide a pump device that can simplify cable wiring work in a facility. [Means for solving the problem]

[0007] A pump device in one embodiment of the present invention is a pump device that supplies a second liquid different from a first liquid stored in an external tank or flowing through an external flow path, and includes a pump unit that draws in the second liquid and discharges the drawn-in second liquid, a receiving unit that receives a status signal from an external measuring device that measures status information of the first liquid related to the operation of the pump unit, a control unit that controls the operation of the pump unit based on the status signal, a power supply unit that generates a first operating voltage for operating the external measuring device based on an external voltage supplied from an external power source and supplies the first operating voltage to the external measuring device, and a housing that contains the pump unit, the receiving unit, the control unit, and the power supply unit; A connection switching unit that switches a connection between the power supply unit and the control unit; Do not have the power supply unit includes a first voltage generation unit that converts the external voltage to generate the first operating voltage, and a first power supply connection unit that is connected to the external measuring device or a device that transmits and receives a signal, the pump unit includes a diaphragm that reciprocates, the housing includes a pump chamber that accommodates the diaphragm, the control unit is capable of generating an operation information signal related to the operation of the pump unit, the connection switching unit is capable of switching a connection between the first power supply connection unit and either the control unit or the first voltage generation unit, When the first power supply connection portion is connected to the external measuring device, the connection switching portion connects between the first power supply connection portion and the first voltage generating portion, and the first power supply connection portion supplies the first operating voltage to the external measuring device. When the first power supply connection portion is connected to a device that transmits or receives the signal, the connection switching portion connects between the control portion and the first power supply connection portion, and the first power supply connection portion functions as a transmitting connection portion that transmits the operating information signal to the device that transmits or receives the signal and / or a receiving connection portion that receives a signal from the device that transmits or receives the signal. . Effect of the Invention

[0008] According to the present invention, a pump device capable of simplifying cable wiring work in a facility can be provided. [Brief description of the drawings]

[0009] [Figure 1] 1 is a schematic diagram showing an example of the configuration of a water supply system to which a pump device according to the present invention is attached; [Diagram 2] 1 is a functional block diagram showing an embodiment of a pump device according to the present invention; [Diagram 3]3 is a schematic diagram showing an example of information stored in a storage unit of the pump device of FIG. 2. FIG. [Figure 4] 4 is a schematic diagram showing another example of the configuration of a water supply system to which the pump device according to the present invention is attached. FIG. [Diagram 5] FIG. 4 is a functional block diagram showing another embodiment of a pump device according to the present invention. [Figure 6] FIG. 11 is a functional block diagram showing still another embodiment of a pump device according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the pump device according to the present invention will be described with reference to the drawings. In the following description, the pump device according to the present invention is attached to a water supply system (facility) that supplies sterilized water to a pool tank, and supplies a chemical solution to raw water flowing in the water supply system. In each drawing, the same members and elements are given the same reference numerals, and duplicated explanations will be omitted.

[0011] ●Pump equipment (1)● The configuration of the water supply system in which the pump unit (1) is installed First, in this embodiment, an example of the configuration of a water supply system to which a pump device according to the present invention is attached will be described.

[0012] FIG. 1 is a schematic diagram showing an example of the configuration of a water supply system to which a pump device according to the present invention is attached.

[0013] The water supply system S includes a first flow path S1, a second flow path S2, a chemical tank S3, a flow meter S4, and a pump device 1.

[0014] The first flow path S1 is a flow path through which the raw water W1 supplied to the pool tank S0 flows. The pool tank S0 is an example of an external tank in the present invention. The first flow path S1 is an example of an external flow path in the present invention.

[0015] The raw water W1 is, for example, water supplied from a water supply system. The raw water W1 is an example of the first liquid in the present invention.

[0016] The second flow path S2 is a flow path through which the chemical solution W2 flows, the chemical solution W2 being supplied to the raw water W1 flowing through the first flow path S1. The second flow path S2 is connected to the first flow path S1 and a chemical solution tank S3.

[0017] The "chemical liquid W2" is, for example, a liquid containing an additive to be added to the raw water W1. In the present embodiment, the chemical liquid is, for example, a sodium hypochlorite aqueous solution. The chemical liquid is an example of the second liquid in the present invention.

[0018] The liquid chemical tank S3 is a container that stores the liquid chemical W2.

[0019] The flow meter S4 measures the flow rate of the raw water W1 flowing through the first flow path S1. The flow meter S4 is, for example, a liquid-contact type, and outputs a pulse signal corresponding to the measurement result (flow rate) as a status signal. The flow meter S4 is connected to the first flow path S1 upstream of the connection point P1 with the second flow path S2. The flow meter S4 is an example of an external measurement device in the present invention.

[0020] A "status signal" is a signal that conveys status information of a target liquid. "Status information" is information that indicates a physical quantity, such as a flow rate, a mass, a concentration of an additive, or a pH value.

[0021] The pump device 1 supplies the chemical solution W2 to the raw water W1 flowing through the first flow path S1. The pump device 1 is connected in the second flow path S2 between the chemical solution tank S3 and the connection point P1. A specific configuration of the pump device 1 will be described later.

[0022] The chemical solution W2 supplied to the raw water W1 by the pump device 1 flows through the first flow path S1 together with the raw water W1 and is stored in the pool tank S0. In the pool tank S0, the raw water W1 is sterilized by the chemical solution W2 and stored as sterilized water W.

[0023] ●Configuration of pump device (1) Next, the configuration of the pump device 1 will be described.

[0024] FIG. 2 is a functional block diagram showing an embodiment of the pump device according to the present invention. For ease of explanation, the diagram also shows a schematic diagram of a water supply system S. In the diagram, paths through which main signals are transmitted are indicated by thick dashed lines, and paths through which main voltages are transmitted are indicated by thick solid lines.

[0025] The pump device 1 is, for example, an electromagnetically driven diaphragm pump. The pump device 1 includes a housing 10, a pump unit 20, a control unit 30, a storage unit 40, a power supply unit 50, a receiving unit 60, a composite cable 70, and a power cable 80.

[0026] The housing 10 accommodates the pump section 20, the control section 30, the storage section 40, the power supply section 50, and the receiving section 60. A part of the housing 10 forms a pump chamber 11 in which a diaphragm 21, which will be described later, is accommodated.

[0027] The pump unit 20 draws in the liquid medicine W2 from the liquid medicine tank S3 and discharges the drawn in liquid medicine W2 toward the first flow path S1. The pump unit 20 includes a diaphragm 21 and an electromagnetic driving unit 22.

[0028] The diaphragm 21 increases and decreases the volume (pressure) in the pump chamber 11 by reciprocating within the pump chamber 11. As a result, the liquid medicine W2 is sucked into the pump chamber 11, and the sucked liquid medicine W2 is discharged from the pump chamber 11.

[0029] The electromagnetic driving unit 22 reciprocates the diaphragm 21 based on a control signal from the control unit 30. The electromagnetic driving unit 22 is, for example, a known electromagnetic actuator.

[0030] The "control signal" is a signal that controls the operation of the pump portion 20, for example, a signal that controls the number of strokes of the diaphragm 21 in a given time.

[0031] The control unit 30 controls the operation of the entire pump device 1 and generates a control signal based on the status signal. The control unit 30 is composed of, for example, a CPU (Central Processing Unit), a volatile memory such as a RAM (Random Access Memory) that functions as a working area for the CPU, and a non-volatile memory such as a ROM (Read Only Memory) that stores various information such as programs.

[0032] The storage unit 40 stores information necessary for the operation of the pump device 1. The storage unit 40 is configured, for example, by a volatile memory such as a RAM.

[0033] FIG. 3 is a schematic diagram showing an example of information stored in the storage unit 40. As shown in FIG.

[0034] In the figure, "flow rate" is the flow rate (status information) of raw water W1 flowing through the first flow path S1, which is included in the status signal sent from the flowmeter S4. As described above, the status signal is a pulse signal, and the flow rate is indicated, for example, by the number of pulse signals. "Stroke count" is the number of reciprocating movements of the diaphragm 21 in a predetermined time. The stroke count is an example of operating condition information in the present invention. As shown in the figure, the flow rate and the stroke count are associated and stored in the memory unit 40. The association between the flow rate and the stroke count is determined in advance, for example, based on the concentration of an additive in the water W (raw water W1 sterilized by chemical solution W2) stored in the pool tank S0.

[0035] The control unit 30 can, for example, select and read out the number of strokes "s1" associated with the flow rate "f1" by referring to the storage unit 40 using the flow rate "f1".

[0036] The storage unit 40 stores the number of strokes in association with the number of pulse signals or a predetermined range of the number of pulse signals. As a result, the storage unit 40 can store several tens to several thousands of operating conditions for the pump unit 20.

[0037] Return to Figure 2. The power supply unit 50 generates voltages required for the operation of the pump device 1 and the flow meter S4 based on an external voltage supplied from an external power source Pw. The power supply unit 50 is a circuit including elements such as a transformer, a converter, and input / output terminals. The power supply unit 50 is electrically connected to the external power source Pw via a power cable 80. The power supply unit 50 includes a voltage generation unit 51 and a power supply connection unit 52.

[0038] The voltage generating unit 51 converts an external voltage from an external power source Pw to generate an operating voltage required for the operation of the flowmeter S4. The voltage generating unit 51 is, for example, a DC-DC converter. The value of the operating voltage generated by the voltage generating unit 51 is, for example, 5 V. The voltage generating unit 51 is an example of a first voltage generating unit in the present invention. The operating voltage is an example of a first operating voltage in the present invention.

[0039] The power supply connection part 52 supplies the operating voltage generated by the voltage generation part 51 to the flowmeter S4. The power supply connection part 52 is, for example, a contact terminal of a known terminal block. The power supply connection part 52 is an example of a first power supply connection part in the present invention.

[0040] The receiving unit 60 receives a signal (status signal) from outside the pump device 1. The receiving unit 60 includes a receiving connection unit 61.

[0041] The receiving connection 61 receives a status signal from the flowmeter S4. The receiving connection 61 is a contact terminal of a terminal block shared with the power supply connection 52. That is, the receiving connection 61, together with the power supply connection 52, constitutes one connector C1 connected to the flowmeter S4. The receiving connection 61 is an example of a first receiving connection in the present invention.

[0042] The composite cable 70 is a conductor that electrically connects the pump device 1 and the flowmeter S4. The composite cable 70 includes an electric wire 71, a signal wire 72, a ground wire 73, and a cable connector 74. The electric wire 71, the signal wire 72, and the ground wire 73 are bundled together.

[0043] The electric wire 71 is a conductor that transmits the operating voltage generated by the voltage generating unit 51. One end of the electric wire 71 is electrically connected to the power supply connecting unit 52.

[0044] The signal line 72 is a conductor that transmits a status signal from the flow meter S4. One end of the signal line 72 is electrically connected to the receiving connection portion 61.

[0045] The ground line 73 is a conducting wire that is electrically connected to a reference potential contact (not shown) that the pump device 1 has.

[0046] The cable connector 74 electrically connects the electric wire 71, the signal wire 72, and the ground wire 73 to the corresponding cables S41, S42, and S43 of the flowmeter S4. The cable connector 74 includes a pump-side cable connector 74a connected to the other end of the electric wire 71, the signal wire 72, and the ground wire 73, respectively, and an equipment-side cable connector 74b connected to one end of each of the cables S41 to S43. The pump-side cable connector 74a is connected to the equipment-side cable connector 74b.

[0047] The power cable 80 electrically connects the external power source Pw and the power supply unit 50 to transmit an external voltage from the external power source Pw to the power supply unit 50 .

[0048] ● Wiring for pump unit (1) Next, wiring of the pump device 1 in the water supply system S will be described with reference to FIGS.

[0049] As described above, the power supply unit 50 is electrically connected to the external power source Pw via the power cable 80. The power supply connection unit 52 of the power supply unit 50 is electrically connected to the cable S41 of the flowmeter S4 via the electric wire 71 and the cable connector 74. The receiving connection unit 61 of the receiving unit 60 is electrically connected to the cable S42 of the flowmeter S4 via the signal line 72 and the cable connector 74. The reference potential contact (not shown) is connected to the cable S43 of the flowmeter S4 via the ground line 73 and the cable connector 74. By using the cable connector 74 in this way, the connection between the composite cable 70 of the pump device 1 and the cables S41 to S43 of the flowmeter S4 is easier and more erroneous than when the composite cable 70 is directly connected to the corresponding cables S41 to S43.

[0050] Thus, in the water supply system S, the pump device 1 is electrically connected only to the external power source Pw and the flowmeter S4. Moreover, the flowmeter S4 is electrically connected only to the pump device 1. That is, the electrical connections for controlling the operation of the pump device 1 are only two systems: a system between the pump device 1 and the external power source Pw (hereinafter referred to as the "first system"), and a system between the pump device 1 and the flowmeter S4 (hereinafter referred to as the "second system"). As a result, the operation of the pump device 1 can be automatically controlled in conjunction with the measurement results (status information) of the flowmeter S4, simply by wiring the two systems.

[0051] ● Operation of pump device (1) Next, the operation of the pump device 1 will be described with reference to FIGS.

[0052] First, when the pump device 1 is powered on, the voltage generating unit 51 generates an operating voltage for operating the flowmeter S4 based on the external voltage from the external power source Pw. Then, the voltage generating unit 51 supplies (transmits) the operating voltage to the flowmeter S4 via the power supply connection unit 52, the electric wire 71, and the cable S41. As a result, the flowmeter S4 starts measuring the flow rate of the raw water W1 flowing through the first flow path S1, and generates a status signal corresponding to the measurement result. Then, the flowmeter S4 transmits the status signal to the receiving connection unit 61 via the cable S42 and the signal line 72. Here, the generation and transmission of the status signal are continuously performed while the operating voltage is being supplied to the flowmeter S4.

[0053] Next, the receiving connection unit 61 transmits the received status signal to the control unit 30. The control unit 30 generates a control signal based on the status signal. Specifically, the control unit 30 acquires status information (flow rate) included in the status signal. Next, the control unit 30 refers to the storage unit 40 and selects operating condition information stored in the storage unit 40 in association with the acquired status information. Next, the control unit 30 generates control information based on the selected operating condition information. Next, the control unit 30 transmits the control information to the electromagnetic drive unit 22. Here, the generation and transmission of the control information are always performed while the status signal is being transmitted to the control unit 30.

[0054] Next, based on the control information, the electromagnetic driver 22 reciprocates the diaphragm 21. As a result, the pump device 1 supplies, via the second flow path S2, an amount of the chemical solution W2 corresponding to the number of reciprocating movements of the diaphragm 21 to the raw water W1 flowing through the first flow path S1.

[0055] In this way, the pump device 1 operates the flowmeter S4 (external measurement device) by supplying an operating voltage to the flowmeter S4. The control unit 30 controls the operation of the pump unit 20 based on a status signal from the flowmeter S4 to control the amount of the chemical solution W2 supplied to the raw water W1. That is, the operation of the pump device 1 is automatically controlled based on a status signal from the external measurement device to which the pump device 1 has supplied an operating voltage.

[0056] Summary (1) According to the embodiment described above, the pump device 1 includes a housing 10, a pump section 20, a control section 30, a power supply section 50, and a receiving section 60. The power supply section 50 generates an operating voltage for operating the flowmeter S4 and supplies it to the flowmeter S4. The receiving section 60 receives a status signal from the flowmeter S4 (external measurement device). The control section 30 controls the operation of the pump section 20 based on the status signal. According to this configuration, unlike a conventional pump device (hereinafter referred to as a "conventional device") that operates based on a control signal from an external control device connected to an external measurement device, the pump device 1 does not require an external control device in the water supply system S. As a result, the pump device 1 does not require cables connecting between the external control device and an external power source, between the external control device and the flowmeter, and between the external control device and the pump device, as in the conventional device. That is, in the water supply system S, the electrical connections for controlling the operation of the pump device 1 are only two systems, the first system and the second system. The housing 10 also accommodates the pump section 20, the control section 30, the power supply section 50, and the receiving section 60. With this configuration, the pump device 1 can integrate the power supply function to the flowmeter S4 (external measurement device) and the control function for the operation of the pump section 20 within one housing 10. As a result, the pump device 1 can simplify the wiring work for controlling the operation of the pump device 1 in the water supply system S.

[0057] Furthermore, according to the embodiment described above, the power supply unit 50 includes a first voltage generating unit 51. The first voltage generating unit 51 converts an external voltage from the external power source Pw to generate an operating voltage for the flowmeter S4 (external measurement device). With this configuration, the pump device 1 can supply operating voltages to various external measurement devices by generating operating voltages corresponding to the external measurement devices. Therefore, the power supply function for various external measurement devices can be consolidated in the pump device 1. As a result, the pump device 1 can simplify the wiring work for controlling the operation of the pump device 1 in the water supply system S.

[0058] Furthermore, according to the embodiment described above, the power supply unit 50 includes a power supply connection unit 52, and the receiving unit 60 includes a reception connection unit 61. The power supply connection unit 52 and the reception connection unit 61 are each electrically connected to a flowmeter S4 (external measurement device). The power supply connection unit 52 and the reception connection unit 61 form one connector C1. With this configuration, wiring of the external measurement device to the pump device 1 can be consolidated into one connector C1. As a result, the pump device 1 can simplify the wiring work for controlling the operation of the pump device 1 in the water supply system S.

[0059] Furthermore, according to the embodiment described above, the pump device 1 includes a storage unit 40. The storage unit 40 stores status information and operating condition information in association with each other. The control unit 30 selects operating condition information based on the status signal, and generates a control signal based on the operating condition information. With this configuration, the pump device 1 can independently acquire status information and generate a control signal without relying on control from an external control device as in conventional devices. As a result, the pump device 1 can simplify the wiring work for controlling the operation of the pump device 1 in the water supply system S.

[0060] ●Pump equipment (2)● Next, another embodiment of the pump device according to the present invention (hereinafter referred to as the "second embodiment") will be described, focusing on the differences from the previously described embodiment (hereinafter referred to as the "first embodiment"). The second embodiment differs from the first embodiment in that the pump device is electrically connected to an external device in addition to an external measuring device. In the following description, elements common to the first embodiment are given the same reference numerals and their description will be omitted.

[0061] The configuration of the water supply system in which the pump unit (2) is installed First, in the second embodiment, another example of the configuration of a water supply system to which a pump device according to the present invention is attached will be described.

[0062] FIG. 4 is a schematic diagram showing another example of the configuration of a water supply system to which the pump device according to the present invention is attached.

[0063] The water supply system SA includes a first flow path S1, a second flow path S2, a chemical tank S3, a flow meter S4, a residual chlorine concentration meter S5A, and a pump device 1A.

[0064] The residual chlorine concentration meter S5A measures the concentration of chlorine contained (residual) in the water W stored in the pool tank S0. The residual chlorine concentration meter S5A outputs a measurement signal corresponding to the measurement result (chlorine concentration). The measurement signal is an example of a received signal in the present invention. The residual chlorine concentration meter S5A is an example of an external device in the present invention.

[0065] The pump device 1A supplies a chemical solution W2 to raw water W1 flowing through a first flow path S1. The pump device 1A is connected in a second flow path S2 between a chemical solution tank S3 and a connection point P1. A specific configuration of the pump device 1A will be described later.

[0066] ●Configuration of pump unit (2) Next, the configuration of the pump device 1A will be described.

[0067] FIG. 5 is a functional block diagram showing another embodiment (second embodiment) of the pump device according to the present invention. For convenience of explanation, the drawing also shows the water supply system SA. In the drawing, paths through which main signals are transmitted are indicated by thick dashed lines, and paths through which main voltages are transmitted are indicated by thick solid lines.

[0068] The pump device 1A is, for example, an electromagnetically driven diaphragm pump. The pump device 1A includes a housing 10, a pump unit 20, a control unit 30A, a storage unit 40, a power supply unit 50A, a receiving unit 60A, a composite cable 70A, and a power cable 80.

[0069] The control unit 30A controls the overall operation of the pump device 1A and generates control signals based on the status signals and the measurement signals. The control unit 30A is composed of, for example, a CPU, a ROM, and a RAM.

[0070] The power supply unit 50A generates voltages required for the operation of the pump device 1A, the flow meter S4, and the residual chlorine concentration meter S5A based on an external voltage supplied from an external power source Pw. The power supply unit 50A is a circuit including elements such as a transformer, a converter, and input / output terminals. The power supply unit 50A is electrically connected to the external power source Pw via a power cable 80. The power supply unit 50A includes a voltage generation unit (hereinafter referred to as the "first voltage generation unit") 51, a power supply connection unit (hereinafter referred to as the "first power supply connection unit") 52, a second voltage generation unit 53A, and a second power supply connection unit 54A.

[0071] The second voltage generating unit 53A converts the external voltage from the external power source Pw to generate an operating voltage (hereinafter referred to as the "second operating voltage") required for the operation of the residual chlorine concentration meter S5A. The second voltage generating unit 53A is, for example, a DC-DC converter. The value of the second operating voltage generated by the second voltage generating unit 53A is, for example, 12 V. In other words, the value of the second operating voltage generated by the second voltage generating unit 53A is different from the operating voltage (hereinafter referred to as the "first operating voltage") generated by the first voltage generating unit 51.

[0072] The second power supply connector 54A supplies the second operating voltage generated by the second voltage generator 53A to the residual chlorine concentration meter S5A. The second power supply connector 54A is, for example, a contact terminal of a known terminal block.

[0073] Receiving unit 60A receives a signal from outside pump device 1. Receiving unit 60A includes a receiving connection unit (hereinafter referred to as a "first receiving connection unit") 61 and a second receiving connection unit 62A.

[0074] The second receiving connection 62A receives a measurement signal from the residual chlorine concentration meter S5A. The second receiving connection 62A is a contact terminal of a terminal block shared with the second power supply connection 54A. In other words, the second receiving connection 62A, together with the second power supply connection 54A, constitutes one additional connector C2 connected to the residual chlorine concentration meter S5A.

[0075] Here, the first power supply connection portion 52, the second power supply connection portion 54A, the first receiving connection portion 61, and the second receiving connection portion 62A are also contact terminals of a common terminal block. That is, the connector C1 and the additional connector C2 constitute an integrated common connector C.

[0076] The composite cable 70A is a conductor that electrically connects the pump device 1A and the flowmeter S4, and the pump device 1A and the residual chlorine concentration meter S5A. The composite cable 70A includes an electric wire (hereinafter referred to as the "first electric wire") 71, a signal wire (hereinafter referred to as the "first signal wire") 72, a ground wire (hereinafter referred to as the "first ground wire") 73, a cable connector (hereinafter referred to as the "first cable connector") 74, a second electric wire 75A, a second signal wire 76A, a second ground wire 77A, and a second cable connector 78A. The second electric wire 75A, the second signal wire 76A, and the second ground wire 77A are bundled together.

[0077] The second electric wire 75A is a conductor that transmits the second operating voltage generated by the second voltage generating unit 53A. One end of the second electric wire 75A is electrically connected to the second power supply connecting unit 54A.

[0078] The second signal line 76A is a conductor that transmits a measurement signal from the residual chlorine concentration meter S5 A. One end of the second signal line 76A is electrically connected to the second receiving connection portion 62A.

[0079] The second ground line 77A is a conductor that is electrically connected to a reference potential contact (not shown) provided in the pump device 1A.

[0080] The second cable connector 78A electrically connects the second electric wire 75A, the second signal wire 76A, and the second ground wire 77A to the corresponding cables S51A, S52A, and S53A of the residual chlorine concentration meter S5A. The second cable connector 78A includes a pump side cable connector 78Aa connected to the other end of the second electric wire 75A, the second signal wire 76A, and the second ground wire 77A, respectively, and an equipment side cable connector 78Ab connected to one end of each of the cables S51A to S53A. The pump side cable connector 78Aa is connected to the equipment side cable connector 78Ab.

[0081] ● Wiring for pump unit (2) Next, wiring of the pump device 1A in the water supply system SA will be described with reference to FIGS.

[0082] In the second embodiment, the connections between the pump device 1A, the external power source Pw, and the flow meter S4 are common to the connections between the pump device 1, the external power source Pw, and the flow meter S4 described in the first embodiment.

[0083] As described above, the second power supply connection 54A of the power supply unit 50A is electrically connected to the cable S51A of the residual chlorine concentration meter S5A via the second electric wire 75A and the second cable connector 78A. The second receiving connection 62A of the receiving unit 60A is electrically connected to the cable S52A of the residual chlorine concentration meter S5A via the second signal line 76A and the second cable connector 78A. The reference potential contact (not shown) is connected to the cable S53A of the residual chlorine concentration meter S5A via the second ground line 77A and the second cable connector 78A. By using the second cable connector 78A in this way, the connection between the composite cable 70A of the pump device 1A and the cables S51A to S53A of the residual chlorine concentration meter S5A is easier and more erroneous than when the composite cable 70 is directly connected to each of the cables S51A to S53A.

[0084] Thus, in the water supply system SA, the pump device 1A is electrically connected only to the external power source Pw, the flowmeter S4, and the residual chlorine concentration meter S5A. Moreover, the flowmeter S4 and the residual chlorine concentration meter S5A are each electrically connected only to the pump device 1A. That is, the electrical connections for controlling the operation of the pump device 1A are only three systems: the first system, the second system, and a system between the pump device 1A and the residual chlorine concentration meter S5A (hereinafter referred to as the "third system"). As a result, the operation of the pump device 1A can be automatically controlled in conjunction with the measurement results of the flowmeter S4 and the residual chlorine concentration meter S5A by simply wiring the three systems.

[0085] ● Operation of pump device (2) Next, the operation of the pump device 1A will be described with reference to FIGS.

[0086] First, when the power supply of the pump device 1A is turned on, the first voltage generating unit 51 generates a first operating voltage for operating the flowmeter S4 based on the external voltage from the external power supply Pw. The second voltage generating unit 53A generates a second operating voltage for operating the residual chlorine concentration meter S5A based on the external voltage. As in the first embodiment, the first voltage generating unit 51 supplies the first operating voltage to the flowmeter S4, and the flowmeter S4 transmits a status signal to the first receiving connection unit 61. Meanwhile, the second voltage generating unit 53A supplies (transmits) the second operating voltage to the residual chlorine concentration meter S5A via the second power supply connection unit 54A, the second electric wire 75A, and the cable S51A. As a result, the residual chlorine concentration meter S5A starts measuring the chlorine concentration contained in the water W stored in the pool tank S0, and generates a measurement signal corresponding to the measurement result. The residual chlorine concentration meter S5A then transmits the measurement signal to the second receiving connection 62A via the cable S52A and the second signal line 76A, where the generation and transmission of the measurement signal is performed continuously while the residual chlorine concentration meter S5A is supplied with the second operating voltage.

[0087] Next, the first receiving connection 61 transmits the received status signal to the control unit 30A. Also, the second receiving connection 62A transmits the received measurement signal to the control unit 30A. Next, the control unit 30A generates a control signal based on the status signal and the measurement signal. Specifically, the control unit 30A acquires status information (flow rate) included in the status signal. Next, the control unit 30A refers to the storage unit 40 and selects operating condition information stored in the storage unit 40 in association with the acquired status information.

[0088] Meanwhile, the control unit 30A obtains the measurement result (chlorine concentration of the water W) from the measurement signal, and judges whether the chlorine concentration of the water W is within the appropriate range, excessive, or too low. Next, the control unit 30A judges whether or not the operating condition information needs to be corrected based on the judgment result of the chlorine concentration of the water W. When the operating condition information needs to be corrected, the control unit 30A corrects the operating condition information using, for example, a function pre-stored in the storage unit 40. Next, the control unit 30A generates control information based on the operating condition information (or the corrected operating condition information). Next, the control unit 30A transmits the control information to the electromagnetic drive unit 22. Here, the generation and transmission of the control information are always performed while the status signal and the measurement signal are being transmitted to the control unit 30A.

[0089] Next, based on the control information, the electromagnetic driver 22 reciprocates the diaphragm 21. As a result, the pump device 1 supplies an amount of the chemical solution W2 corresponding to the number of reciprocating movements of the diaphragm 21 to the raw water W1 flowing through the first flow path S1 via the second flow path S2.

[0090] In this way, the pump device 1A operates the flowmeter S4 by supplying the first operating voltage to the flowmeter S4, and operates the residual chlorine concentration meter S5A by supplying the second operating voltage to the residual chlorine concentration meter S5A. The control unit 30A controls the operation of the pump unit 20 based on a status signal from the flowmeter S4 and a measurement signal from the residual chlorine concentration meter S5A, thereby controlling the amount of the chemical solution W2 supplied to the raw water W1. That is, the operation of the pump device 1A is automatically controlled based on a status signal from an external measurement device to which the pump device 1A has supplied a first operating voltage, and a measurement signal from an external device to which the pump device 1A has supplied a second operating voltage.

[0091] Summary (2) According to the second embodiment described above, the pump device 1A includes a housing 10, a pump unit 20, a control unit 30A, a power supply unit 50A, and a receiving unit 60A. The power supply unit 50A generates a first operating voltage and supplies it to the flowmeter S4, and generates a second operating voltage and supplies it to the residual chlorine concentration meter S5A. The receiving unit 60A receives a status signal from the flowmeter S4 (external measurement device) and a measurement signal from the residual chlorine concentration meter S5A (external device). The control unit 30A controls the operation of the pump unit 20 based on the status signal and the measurement signal. According to this configuration, in the water supply system SA, the electrical connections for controlling the operation of the pump device 1A are only three systems, the first system, the second system, and the third system. Furthermore, similarly to the first embodiment, the pump device 1A can integrate the power supply function to the flowmeter S4 (external measurement device) and the residual chlorine concentration meter S5A (external device) and the control function of the operation of the pump section 20 in one housing 10. As a result, the pump device 1A can simplify the wiring work for controlling the operation of the pump device 1A in the water supply system SA.

[0092] Moreover, according to the second embodiment described above, the value of the second operating voltage (12 V) is different from the value of the first operating voltage (5 V). With this configuration, the pump device 1A can generate two operating voltages with different values ​​and supply each operating voltage to the corresponding external measuring device and external device. Therefore, the power supply function to the external measuring device that operates at various voltage values ​​can be consolidated in the pump device 1A. As a result, the pump device 1 can simplify the wiring work for controlling the operation of the pump device 1A in the water supply system SA.

[0093] Furthermore, according to the second embodiment described above, the power supply unit 50A includes the second power supply connection unit 54A, and the receiving unit 60A includes the second receiving connection unit 62A. The second power supply connection unit 54A and the second receiving connection unit 62A are each electrically connected to the residual chlorine concentration meter S5A (external device). The second power supply connection unit 54A and the second receiving connection unit 62A form one additional connector C2. With this configuration, the wiring of the external device to the pump device 1A can be consolidated into one additional connector C2. As a result, the pump device 1A can simplify the wiring work for controlling the operation of the pump device 1A in the water supply system SA.

[0094] Furthermore, according to the second embodiment described above, the control unit 30A controls the operation of the pump unit 20 based on the status signal and the measurement signal. With this configuration, the pump device 1A can independently supply power to each of the flowmeter S4 (external measurement device) and the residual chlorine concentration meter S5A (external device), and control the supply amount of the chemical solution W2 based on the signals (status signal, measurement signal) from each. As a result, the pump device 1A realizes more precise and complex control of the supply of the chemical solution W2.

[0095] ●Pump equipment (3)● Next, a further embodiment of the pump device according to the present invention (hereinafter referred to as the "third embodiment") will be described, focusing on the differences from the first and second embodiments described above. The third embodiment differs from the second embodiment in that the pump device has a connection switching unit. In the following description, elements common to the second embodiment are given the same reference numerals, and descriptions thereof will be omitted.

[0096] ● Configuration of pump device (3) First, the configuration of the pump device will be described.

[0097] FIG. 6 is a functional block diagram showing still another embodiment (third embodiment) of a pump device according to the present invention. For convenience of explanation, the drawing also shows the water supply system SA. In the drawing, paths through which main signals flow are indicated by thick dashed lines, and paths through which main voltages are supplied are indicated by thick solid lines.

[0098] The pump device 1B is, for example, an electromagnetically driven diaphragm pump and includes a housing 10, a pump unit 20, a control unit 30B, a storage unit 40, a power supply unit 50A, a receiving unit 60A, a composite cable 70A, a power cable 80, and a connection switching unit 90B.

[0099] The control unit 30B controls the operation of the entire pump device 1B and generates a control signal based on the state signal and the measurement signal. The control unit 30B also generates an operation information signal, which will be described later. The control unit 30B is composed of, for example, a CPU, a ROM, and a RAM.

[0100] The "operation information signal" is a signal that includes information about the operation of the pump portion 20 (for example, the number of strokes of the diaphragm 21, etc.).

[0101] The connection switching unit 90B switches the connection between the first power supply connection unit 52 and either the control unit 30B or the first voltage generation unit 51. The connection switching unit 90B also switches the connection between the second power supply connection unit 54A and either the control unit 30B or the first voltage generation unit 51. The connection switching unit 90B includes a first connection switching unit 91B and a second connection switching unit 92B. The switching of the connection by the connection switching unit 90B is performed manually by, for example, a user of the pump device 1B.

[0102] The first connection switching unit 91B switches the connection between the first power supply connecting unit 52 and either the control unit 30B or the first voltage generating unit 51. The first connection switching unit 91B is, for example, a C-contact switch. The first connection switching unit 91B is connected between the control unit 30B, the first voltage generating unit 51, and the first power supply connecting unit 52.

[0103] The second connection switching unit 92B switches the connection between the second power supply connecting unit 54A and either the control unit 30B or the second voltage generating unit 53A. The second connection switching unit 92B is, for example, a C-contact switch. The second connection switching unit 92B is connected between the control unit 30B, the second voltage generating unit 53A, and the second power supply connecting unit 54A.

[0104] ● Operation of the pump device (3) Next, the operation of the pump device 1B will be described.

[0105] First, when the first connection switching unit 91B connects between the first voltage generating unit 51 and the first power supply connection unit 52, and the second connection switching unit 92B connects between the second voltage generating unit 53A and the second power supply connection unit 54A (power supply state), the operation of the pump device 1B is the same as the operation of the pump device 1A in the second embodiment.

[0106] Next, when the first connection switching unit 91B connects between the first voltage generating unit 51 and the first power supply connection unit 52, and the second connection switching unit 92B connects between the control unit 30B and the second power supply connection unit 54A (first power supply state), the second power supply connection unit 54A does not supply the second operating voltage to the outside. In this case, the second power supply connection unit 54A can output a signal (e.g., an operation information signal) from the control unit 30B to the outside instead of the second operating voltage. In addition, the second power supply connection unit 54A can receive a signal from the outside and transmit the received signal to the control unit 30B. Therefore, instead of an external device, a device that transmits and receives a signal (e.g., a monitoring device such as a microcomputer or PC, a communication module, etc.) can be connected to the second power supply connection unit 54A. According to this configuration, in the third embodiment, the second power supply connection section 54A also functions as a transmitting connection section that transmits an operation information signal to the outside, or as a receiving connection section that receives a signal from the outside, by switching the second connection switch section 92B.

[0107] Next, when the first connection switching unit 91B connects between the control unit 30B and the first power supply connection unit 52 and the second connection switching unit 92B connects between the second voltage generating unit 53A and the second power supply connection unit 54A (second power supply state), the first power supply connection unit 52 does not supply the first operating voltage to the outside. In this case, the first power supply connection unit 52 can output a signal (e.g., an operation information signal) from the control unit 30B to the outside instead of the first operating voltage. Also, the first power supply connection unit 52 can receive a signal from the outside and transmit the received signal to the control unit 30B. Therefore, instead of an external measuring device, a device that transmits and receives a signal (e.g., a monitoring device such as a microcomputer or PC, a communication module, etc.) can be connected to the first power supply connection unit 52. According to this configuration, in the third embodiment, the first power supply connection section 52 also functions as a transmitting connection section that transmits an operation information signal to the outside, or as a receiving connection section that receives a signal from the outside, by switching the first connection switch section 91B.

[0108] ● Summary (3) According to the third embodiment described above, the pump device 1B can simplify the wiring work for controlling the operation of the pump device 1B, similarly to the pump device 1A in the second embodiment.

[0109] Furthermore, according to the third embodiment described above, the pump device 1B has a connection switching unit 90B that switches the connection between the first power supply connection unit 52 (second power supply connection unit 54A) and either the control unit 30B or the first voltage generation unit 51 (second voltage generation unit 53A). With this configuration, as described above, the first power supply connection unit 52 can have the function of supplying the first operating voltage to the outside (power supply function), the function of sending a signal to the outside (transmission function), and the function of receiving a signal from the outside (reception function).

[0110] ●Other embodiment examples● In the above-described embodiments, the facility to which the pump device according to the present invention is attached is not limited to the water supply system of a pool tank. For example, the facility may be an industrial water supply system, an industrial wastewater supply system, a chemical supply system, or a drinking water supply system.

[0111] In each of the embodiments described above, the pump device according to the present invention may supply the chemical solution to the raw liquid stored in the pool tank, instead of to the raw water flowing through the first flow path.

[0112] Furthermore, in each of the above-described embodiments, the second liquid in the present invention may be any liquid different from the first liquid in the present invention, and is not limited to a chemical liquid. The first liquid in the present invention is also not limited to raw water. That is, for example, the first liquid and the second liquid in the present invention may be different types of chemicals (aqueous solutions), or may be water with different temperatures or components (for example, hot water and cold water).

[0113] Furthermore, in each of the above-described embodiments, the chemical liquid that is the second liquid in the present invention is not limited to sodium hypochlorite. That is, for example, when the pump device according to the present invention is installed in a water supply system for boiler water, the chemical liquid may be an additive to the boiler water.

[0114] Furthermore, in each of the above-described embodiments, the external measuring device in the present invention is not limited to a flowmeter as long as it is a device that measures state information of the first liquid related to the operation of the pump unit. That is, for example, the external measuring device in the present invention may be a residual chlorine concentration meter, a pH meter, a conductivity meter, a thermometer, a water level meter, or the like.

[0115] Furthermore, in the second embodiment described above, the external device in the present invention may be any device that receives the second operating voltage from the pump device according to the present invention, and is not limited to a residual chlorine concentration meter. That is, for example, the external device in the present invention may be a pH meter, a conductivity meter, a thermometer, or a water level meter. Also, the external device in the present invention may be a device that measures state information of the second liquid (for example, a flow meter).

[0116] Furthermore, in each of the above-described embodiments, the housing of the present invention may include a plurality of housings. That is, for example, the housing of the present invention may include a first housing that houses the pump unit, the power supply unit, and the receiving unit, and a second housing that houses the storage unit and the control unit. In this case, the second housing is attached to the outer surface of the first housing, for example.

[0117] Furthermore, in each of the embodiments described above, the specific elements constituting the control unit in the present invention are not limited to those in each of the embodiments as long as they are capable of generating control information.

[0118] Furthermore, in each of the embodiments described above, the specific elements constituting the storage unit in the present invention are not limited to those in each of the embodiments as long as they are capable of storing necessary information.

[0119] Furthermore, in the second embodiment described above, the pump device according to the present invention (for example, the control unit in the present invention) may control whether or not to supply the second operating voltage to the external device based on a status signal from an external measuring device. That is, for example, the control unit in the present invention may stop supplying the second operating voltage to the external device when status information included in the status signal satisfies a predetermined condition (for example, constant for a predetermined period of time). In this case, the control unit in the present invention may resume supplying the second operating voltage to the external device when the status information no longer satisfies the predetermined condition. With this configuration, the power consumption of the pump device according to the present invention is suppressed.

[0120] Furthermore, in each of the above-described embodiments, the value of the first operating voltage generated by the first voltage generating unit of the present invention is not limited to 5 V. That is, for example, the value of the first operating voltage may be 3.3 V, 12 V, 15 V, 24 V, or 48 V.

[0121] Furthermore, in the second embodiment described above, the value of the second operating voltage generated by the second voltage generating unit of the present invention is not limited to 12 V. That is, for example, the value of the second operating voltage may be 3.3 V, 5 V, 15 V, 24 V, or 48 V.

[0122] Furthermore, in each of the embodiments described above, the first voltage generating section and / or the second voltage generating section in the present invention may be configured with a DC-DC converter with a variable output voltage value.

[0123] Furthermore, in each of the above-described embodiments, the first voltage generating unit and / or the second voltage generating unit of the present invention need only be capable of generating a DC voltage of a predetermined value, and is not limited to a DC-DC converter. That is, for example, the first voltage generating unit and / or the second voltage generating unit of the present invention may be configured as an AC-DC converter.

[0124] Furthermore, in each of the above-described embodiments, the first power supply connection portion and the first receiving connection portion of the present invention do not have to form a single connector. That is, for example, the first power supply connection portion and the first receiving connection portion of the present invention may each be configured as separate bodies.

[0125] Furthermore, in the second and third embodiments described above, the second power supply connection portion and the second reception connection portion of the present invention do not have to form one additional connector. That is, for example, the second power supply connection portion and the second reception connection portion of the present invention may each be configured as separate bodies.

[0126] Furthermore, in the second and third embodiments described above, the connector and the additional connector of the present invention do not have to form one common connector. That is, for example, the connector and the additional connector of the present invention may each be configured as separate bodies.

[0127] Furthermore, in each of the above-described embodiments, the status signal received by the first receiving connection unit in the present invention is not limited to a pulse signal. That is, for example, the received signal may be an analog signal indicating the flow rate with a current value in the range of 4 mA to 20 mA. In this case, the storage unit in the present invention may store, for example, operating condition information (stroke count) in association with each current value (flow rate).

[0128] Furthermore, in each of the embodiments described above, the composite cable of the present invention does not need to include a cable connector (second cable connector). In this case, the composite cable of the present invention may be directly connected to, for example, an external measuring device.

[0129] Furthermore, in each of the above-described embodiments, the pump device according to the present invention may not have a composite cable connected to an external measuring device. In this case, the pump device according to the present invention is electrically connected to the external measuring device via, for example, a cable provided in the external measuring device.

[0130] Furthermore, in each of the embodiments described above, the composite cable of the present invention may be bound to the second flow path by a protective member, such as a sponge, that prevents condensation on the composite cable.

[0131] Furthermore, in each of the above-described embodiments, the cable connector of the present invention does not necessarily have to include an equipment-side cable connector. In this case, for example, the flow meter may include an equipment-side cable connector.

[0132] Furthermore, in the second embodiment described above, the pump device according to the present invention supplies the second operating voltage to the external device, but may not receive a signal from the external device. In this case, the control unit in the present invention generates a control signal based on a state signal, similar to the control unit in the first embodiment. Also, the external device in the present invention may be a device that does not generate a signal (for example, a solenoid valve).

[0133] Furthermore, in the second embodiment described above, the second power supply connection part of the present invention may be connected to an external measurement device different from the external measurement device connected to the first power supply connection part.

[0134] Furthermore, in the third embodiment described above, the connection switch section in the present invention does not have to include either the first connection switch section or the second connection switch section.

[0135] Furthermore, in the first embodiment described above, the pump device according to the present invention may include the first connection switching unit in the third embodiment.

[0136] Furthermore, in each of the embodiments described above, the pump device according to the present invention may include, in addition to the first power supply connection portion and the first receiving connection portion, a receiving connection portion for receiving a signal from the outside and / or a transmitting connection portion for sending a signal to the outside. In this case, the first power supply connection portion and the first receiving connection portion may form a single connector together with the receiving connection portion and / or the transmitting connection portion.

[0137] Furthermore, in the second and third embodiments described above, the pump device according to the present invention may include, in addition to the second power supply connection portion and the second receiving connection portion, a receiving connection portion that receives a signal from the outside and / or a transmitting connection portion that sends a signal to the outside. In this case, the second power supply connection portion and the second receiving connection portion may form a single additional connector together with the receiving connection portion and / or the transmitting connection portion.

[0138] Furthermore, in each of the embodiments described above, the operation of the control unit in the present invention is not limited to each of the embodiments as long as it generates a control signal based on a status signal.

[0139] Furthermore, in each of the above-described embodiments, the pump device according to the present invention is not limited to a diaphragm pump as long as it is capable of supplying power to an external measuring device and controlling the operation of the pump unit based on a status signal from the external measuring device. That is, for example, the pump device according to the present invention may be a constant-volume pump such as a plunger pump, a piston pump, a bellows pump, a vane pump, or a gear pump.

[0140] ●Embodiments of the present invention● Next, the embodiments of the present invention that can be understood from the above-described embodiments will be described below, using the terms and symbols described in the respective embodiments.

[0141] A first embodiment of the present invention is a pump device (e.g., pump device 1, 1A, 1B) that supplies a second liquid (e.g., chemical liquid W2) different from a first liquid (e.g., raw water W1) stored in an external tank (e.g., pool tank S0) or flowing through an external flow path (e.g., first flow path S1), to the first liquid, the pump device includes a pump section (e.g., pump section 20) that draws in the second liquid and discharges the drawn-in second liquid, and a status signal from an external measuring device (e.g., flow meter S4) that measures status information of the first liquid related to the operation of the pump section. the pump device comprises a receiving unit (e.g., receiving unit 60, 60A) that receives a status signal from an external power source (e.g., external power source Pw), a control unit (e.g., control unit 30, 30A, 30B) that controls the operation of the pump unit based on the status signal, a power supply unit (e.g., power supply unit 50, 50A) that generates a first operating voltage for operating the external measuring device based on an external voltage supplied from an external power source (e.g., external power source Pw) and supplies the first operating voltage to the external measuring device, and a housing (e.g., housing 10) that accommodates the pump unit, the receiving unit, the control unit, and the power supply unit. According to this configuration, the pump device can simplify wiring work for controlling the operation of the pump device in a facility (for example, water supply systems S, SA).

[0142] A second embodiment of the present invention is a pump device in which, in the first embodiment, the power supply unit includes a first voltage generating unit (e.g., a voltage generating unit 51) that converts the external voltage and generates the first operating voltage. According to this configuration, the pump device can generate an operating voltage corresponding to the external measuring device, thereby supplying the operating voltage to the various external measuring devices. Therefore, the power supply function to the various external measuring devices can be consolidated in the pump device. As a result, the pump device can simplify the wiring work for controlling the operation of the pump device in the water supply system.

[0143] A third embodiment of the present invention is a pump device in which, in the first or second embodiment, the receiving unit includes a first receiving connection unit (e.g., receiving connection unit 61) connected to the external measuring device, the power supply unit includes a first power supply connection unit (e.g., power supply connection unit 52) ​​connected to the external measuring device, and the first receiving connection unit and the first power supply connection unit form one connector (e.g., connector C1). According to this configuration, the wiring of the external measuring device to the pump device can be consolidated into one connector, which simplifies the wiring work for controlling the operation of the pump device in the water supply system.

[0144] A fourth embodiment of the present invention is a pump device which, in any one of the first to third embodiments, has a memory unit (e.g., memory unit 40) which stores the status information contained in the status signal in association with operating condition information of the pump unit, and the control unit selects the operating condition information stored in the memory unit in association with the status information based on the status signal, and generates a control signal for controlling the operation of the pump unit based on the operating condition information. According to this configuration, the pump device can acquire the status information and generate the control signal by itself, which simplifies the wiring work for controlling the operation of the pump device in the water supply system.

[0145] A fifth embodiment of the present invention is a pump device in any one of the first to fourth embodiments, wherein the power supply unit (e.g., power supply unit 50A) includes a second voltage generating unit (e.g., second voltage generating unit 53A) that converts the external power supply and generates a second operating voltage that operates an external device (e.g., a residual chlorine concentration meter S5A), the second operating voltage is supplied to the external device, and the value of the second operating voltage (e.g., 12 V) is different from the value of the first operating voltage (e.g., 5 V). According to this configuration, the pump device can generate two operating voltages with different values ​​and supply each operating voltage to the corresponding external measuring device and external device. Therefore, the power supply function to the external measuring device that operates at various voltage values ​​can be consolidated in the pump device. As a result, the pump device can simplify the wiring work for controlling the operation of the pump device in the water supply system.

[0146] A sixth embodiment of the present invention is a pump device in which, in the fifth embodiment, the receiving unit (e.g., receiving unit 60A) has a second receiving connection unit (e.g., second receiving connection unit 62A) connected to the external device, the power supply unit (e.g., power supply unit 50A) has a second power supply connection unit (e.g., second power supply connection unit 54A) connected to the external device, and the second receiving connection unit and the second power supply connection unit form one additional connector (e.g., additional connector C2). According to this configuration, the wiring of the external devices to the pump device can be consolidated into one additional connector, which simplifies the wiring work for controlling the operation of the pump device in the water supply system.

[0147] A seventh embodiment of the present invention is a pump device in which, in the fifth embodiment, the control unit (for example, the control unit 30A) controls the operation of the pump unit based on a signal received from the external device. According to this configuration, the pump device can supply power to both the external measurement instrument and the external device by itself and control the supply amount of the second liquid based on signals from each of them, thereby realizing more precise and complex control of the supply of the second liquid.

[0148] An eighth embodiment of the present invention is a pump device according to the second embodiment, further comprising a connection switching unit (e.g., a first connection switching unit 91B) that switches a connection between a first power supply connection unit provided in the power supply unit and either the control unit or the first voltage generation unit, wherein the control unit generates an operation information signal regarding the operation of the pump unit, and when the connection switching unit connects between the control unit and the first power supply connection unit, the first power supply connection unit functions as a transmission connection unit that sends the operation information signal to the outside. According to this configuration, the first power supply connection portion can have both a function of supplying the first operating voltage to the outside (power supply function) and a function of sending a signal to the outside (transmission function).

[0149] A ninth embodiment of the present invention is a pump device according to the second embodiment, which includes a connection switching unit (e.g., first connection switching unit 91B) that switches a connection between a first power supply connection unit provided in the power supply unit and either the control unit or the first voltage generation unit, and when the connection switching unit connects the control unit and the first power supply connection unit, the first power supply connection unit functions as a second receiving connection unit that receives a signal from outside. According to this configuration, the first power supply connection portion can have both a function of supplying the first operating voltage to the outside (power supply function) and a function of receiving a signal from the outside (receiving function).

[0150] A tenth embodiment of the present invention is a pump device in which, in the fifth embodiment, the control unit controls whether or not the second voltage generating unit supplies the second operating voltage to the external device based on the status signal. With this configuration, the power consumption of the pump device is reduced. [Explanation of symbols]

[0151] 1 Pumping equipment 10. Housing 20 Pump section 30 Control section 40 Storage section 50 Power supply unit 51 Voltage generating unit (first voltage generating unit) 52 Power supply connection part (first power supply connection part) 60 Receiving unit 61 Receiving connection part (first receiving connection part) C1 Connector 1A Pump unit 30A Control Unit 50A power supply 53A Second voltage generator 54A Second Power Feed Connection 60A Receiver 62A 2nd receiving connection C2 additional connector 1B Pump unit 30B Control section 90B Connection switch 91B First connection switching unit (connection switching unit) 92B Second connection switch S0 Pool tank (external tank) S1 First flow path (external flow path) W1 Raw water (first liquid) W2 Chemical solution (second liquid)

Claims

1. A pump device that supplies a second liquid different from a first liquid stored in an external tank or flowing through an external flow path, the second liquid comprising: a pump portion that draws in the second liquid and discharges the drawn second liquid; a receiving unit that receives a status signal from an external measuring device that measures status information of the first liquid related to the operation of the pump unit; A control unit that controls the operation of the pump unit based on the state signal; a power supply unit that generates a first operating voltage for operating the external measurement device based on an external voltage supplied from an external power source and supplies the first operating voltage to the external measurement device; a housing that accommodates the pump unit, the receiving unit, the control unit, and the power supply unit; A connection switching unit that switches a connection between the power supply unit and the control unit; and The power supply unit includes: a first voltage generating unit that converts the external voltage to generate the first operating voltage; a first power supply connection portion connected to the external measuring device or a device for transmitting and receiving signals; Equipped with The pump unit includes: A reciprocating diaphragm, Equipped with The housing includes: a pump chamber housing the diaphragm; Equipped with The control unit is capable of generating an operation information signal related to the operation of the pump unit, the connection switching unit is capable of switching a connection between the first power supply connection unit and either the control unit or the first voltage generation unit; When the first power supply connection is connected to the external measuring device, the connection switching unit connects between the first power supply connection unit and the first voltage generating unit, the first power supply connection supplies the first operating voltage to the external measurement device; When the first power supply connection portion is connected to a device that transmits and receives the signal, the connection switching unit connects between the control unit and the first power supply connection unit, the first power supply connection functions as a transmitting connection for sending the operation information signal to a device that transmits or receives the signal, and / or a receiving connection for receiving a signal from the device that transmits or receives the signal, Pump equipment.

2. The receiving unit is a first receiving connection for connection to said external measuring device; Equipped with The first receiving connection portion and the first power supply connection portion constitute one connector.

2. The pump apparatus of claim 1.

3. a storage unit that stores the status information included in the status signal and operating condition information of the pump unit in association with each other; and The control unit is selecting the operating condition information stored in the storage unit in association with the status information based on the status signal; generating a control signal for controlling the operation of the pump unit based on the operating condition information; 3. A pump device according to claim 1 or 2.

4. The power supply unit includes: a second voltage generating unit that converts the external voltage to generate a second operating voltage for operating an external device; Equipped with the second voltage generating unit supplies the second operating voltage to the external device; the value of the second operating voltage is different from the value of the first operating voltage; A pump device according to any one of claims 1 to 3.

5. The receiving unit is A second receiving connection portion connected to the external device; Equipped with The power supply unit includes: A second power supply connection portion connected to the external device; Equipped with The second receiving connection portion and the second power supply connection portion constitute one additional connector.

5. The pump device according to claim 4.

6. The control unit controls the operation of the pump unit based on a signal received from the external device.

5. The pump device according to claim 4.

7. The control unit controls whether or not the second voltage generating unit supplies the second operating voltage to the external device based on the state signal.

5. The pump device according to claim 4.

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