CN208846757U - A kind of cold and hot water slug thermostatic control system - Google Patents

Abstract

The utility model provides a kind of cold and hot water slug thermostatic control system, can solve the technical problem of high/low temperature handoff response time length.A kind of cold and hot water slug thermostatic control system, it is characterized by: hot water output water route is equipped with hot water triple valve, remaining one end of hot water triple valve is connected to by hot water bypass branch with the position that hot water return water route is located at the first hot-water valve front end, cold water output water route is equipped with cold water triple valve, remaining one end of cold water triple valve is connected to by cold water bypass branch with the position that cold-water reflux water route is located at the first Cold water tap front end, system further includes the output end general pipeline being connected to by the output end of spreadsheet engine, the input terminal general pipeline being connected to the input terminal of engine, hot water exports the output end and input terminal general pipeline of water route connection boiler, hot water return water route connects the input terminal of boiler and one end of total triple valve, cold water exports the output end and input terminal general pipeline of water route connection cold water storage cistern, the input terminal of cold-water reflux water route connection cold water storage cistern Output end general pipeline is connected with remaining one end of the other end of total triple valve, total triple valve.

Description

A kind of cold and hot water slug thermostatic control system

Technical field

The utility model relates to Engine Block Test field more particularly to the Work condition analogue devices of Engine Block Test, specifically relate to And a kind of cold and hot water slug thermostatic control system.

Background technique

The automobile components such as vehicle exhaust evolution device need to carry out temperature shock test by cooling thermal impact thermostatic control system. Cooling thermal impact thermostatic control system has the function of high/low temperature moment switching, is able to pass through the controller control simulated environment from high temperature It drastically reduces to low temperature, or rises to the situation of high temperature from low temperature moment, additionally it is possible to high temperature constant temperature or cryogenic thermostat are persistently maintained, With testing product correlation performance parameters.However the high/low temperature handoff response time of existing cooling thermal impact thermostatic control system is long, Need to be further increased.

Utility model content

In view of the above-mentioned problems, the utility model provides a kind of cold and hot water slug thermostatic control system, height can solve The technical problem of warm handoff response time length.

Its technical solution is a kind of such, cold and hot water slug thermostatic control system comprising controller, boiler, cold Water tank, hot water impulse circuit and cold water shock circuit, the hot water impulse circuit include hot water output water route and hot water return water Road, the cold water shock circuit include cold water output water route and cold-water reflux water route, and hot water output water route is equipped with first Hot-water valve, cold water output water route are equipped with the first Cold water tap, it is characterised in that: hot water output water route is equipped with Remaining one end of hot water triple valve, the hot water triple valve is located at first by hot water bypass branch and the hot water return water route The position of hot-water valve front end is connected to, and cold water output water route is equipped with cold water triple valve, the residue of the cold water triple valve One end is connected to by cold water bypass branch with the position that the cold-water reflux water route is located at the first Cold water tap front end, the system It further include the output end general pipeline being connected to by the output end of spreadsheet engine, the input terminal general pipeline being connected to the input terminal of engine, Hot water output water route connects the output end and the input terminal general pipeline of the boiler, and the hot water return water route connects institute State the input terminal of boiler and one end of total triple valve, cold water output water route connects the output end of the cold water storage cistern and described Input terminal general pipeline, the cold-water reflux water route connect the input terminal of the cold water storage cistern and the other end of total triple valve, and described total three Remaining one end of port valve connects the output end general pipeline, and the input terminal general pipeline is equipped with supply water temperature probe, the boiler Hot water temperature's probe is installed, the cold water storage cistern is equipped with cold water temperature probe, the supply water temperature probe, the hot water temperature Probe, cold water temperature probe be electrically connecteds with the controller, and the controller is used to control total triple valve, described The start-stop of hot water triple valve, the aperture of the cold water triple valve and first hot-water valve and first Cold water tap.

Further, hot water output water route along hot water flow direction is sequentially installed with the second hot-water valve, hot water follows Ring pump and first hot-water valve, the hot water return water route is sequentially installed with the hot water threeway along hot water flow direction Valve, heater and hot water flow switch；

Cold water output water route is sequentially installed with the second penstock, cold water circulation pump and described the along cold water flow direction One Cold water tap, the cold-water reflux water route are sequentially installed with the cold water triple valve, refrigeration mechanism, cold along cold water flow direction Water flow switch, the refrigeration mechanism includes sequentially connected compressor, condenser, device for drying and filtering, expansion valve and evaporator, The cold water pipes of the evaporator are connected to the cold-water reflux water route.

Further, total triple valve, the hot water triple valve, the cold water triple valve, first hot-water valve, First Cold water tap is operated pneumatic valve, and the system also includes gas supply mechanism, the output end of the gas supply mechanism passes through It is distributor, gas circuit and total triple valve, the hot water triple valve, the cold water triple valve, first hot-water valve, described First Cold water tap is separately connected, and the controller is electricly connected with the gas supply mechanism, distributor.

Further, the boiler is closed water tank, and the hot water upper box part is equipped with pressure reducing valve.

The cold and hot water slug thermostatic control system of the utility model, during subject, hot water circulating pump, cold water circulation pump one Straight in operating status, if needing cold water shock, the first hot-water valve is shut down, and hot water is formed in boiler, bypass branch and followed certainly Ring, and the first Cold water tap is opened, and realizes that constant temperature cold water to by the impact of spreadsheet engine, provides worst cold case；Conversely, first is cold Penstock is closed, cold water self-loopa, and the first hot-water valve is opened, then realizes that constant-temperature hot water to by the impact of spreadsheet engine, provides Worst hot case；It is shut down by the first hot-water valve and the first Cold water tap realizes high/low temperature switching, when response is greatly shortened Between, almost it is not necessarily to the response time.

Detailed description of the invention

Fig. 1 is the systematic schematic diagram of the utility model.

Specific embodiment

As shown in Figure 1, a kind of cold and hot water slug thermostatic control system comprising controller (is not shown, may be selected PLC controller), boiler 1, cold water storage cistern 12, hot water impulse circuit, cold water shock circuit and with by the defeated of spreadsheet engine 32 The output end general pipeline 28 of outlet connection, the input terminal general pipeline 26 being connected to the input terminal of engine；

Boiler 1 is closed water tank, and 1 top of boiler is equipped with pressure reducing valve 3, and the structure of airtight water tank can be improved case Internal pressure, and then the hot water more than 100 degrees Celsius is obtained, so that remaining cold water in input terminal general pipeline 26 is quickly neutralized, contracting Short response time；

12 cooling water is the chilled water lower than 0 degree Celsius produced by refrigeration mechanism in cold water storage cistern, thus in quickly With hot water remaining in input terminal general pipeline 26, shorten the response time.

Hot water impulse circuit includes hot water output water route 4a and hot water return water route 4b, and hot water exports water route 4a along hot water stream Dynamic direction is sequentially installed with the second hot-water valve 5, hot water circulating pump 6 and the first hot-water valve 7, and hot water return water route 4b is along hot water Flow direction is sequentially installed with 9, hot water triple valve, heater 10 and hot water flow switch 11, the residue one of hot water triple valve 9 End is connected to by hot water bypass branch 8 with the position for being located at 7 front end of the first hot-water valve hot water return water route 4b；

Cold water shock circuit includes cold water output water route 14a and cold-water reflux water route 14b, and cold water exports water route 14a along cold Water flowing direction is sequentially installed with the second penstock, cold water circulation pump 16 and the first Cold water tap 17, the cold-water reflux water route edge 14b Cold water flow direction is sequentially installed with cold water triple valve 19, refrigeration mechanism, cold water flow switch 20, and refrigeration mechanism includes successively connecting Compressor 22, condenser 23, device for drying and filtering 24, expansion valve 25 and the evaporator 21 connect, the cold water pipes of evaporator 21 with it is cold Water reflux water route 14b connection, remaining one end of cold water triple valve 19 passes through cold water bypass branch 18 and 14b, cold-water reflux water route It is connected in the position of 17 front end of the first Cold water tap；

Hot water exports the output end and input terminal general pipeline 26 of water route 4a connection boiler 1, hot water return water route 4b connection heat One end of the input terminal of water tank 1 and total triple valve 29, the output end and input terminal of cold water output water route 14a connection cold water storage cistern 12 are total Pipe 26, the input terminal of cold-water reflux water route 14b connection cold water storage cistern 12 and the other end of total triple valve 29, the residue of total triple valve 29 One end connects output end general pipeline 28, and input terminal general pipeline 26 is equipped with supply water temperature probe 27, and boiler 1 is equipped with hot water temperature's spy First 2, cold water storage cistern 12 is equipped with cold water temperature probe 13, supply water temperature probe 27, hot water temperature's probe 2, cold water temperature probe 13 Be electrically connected with the controller, controller be used for control total triple valve 29, hot water triple valve 9, cold water triple valve 19 aperture and The start-stop of first hot-water valve 7 and the first Cold water tap 17.

Total triple valve 29, hot water triple valve 9, cold water triple valve 19 are Pneumatic three-way valve, the first hot-water valve 7, first Cold water tap 17 is pneumatic straight-through ball valve, and system further includes gas supply mechanism 30, and the output end of gas supply mechanism 30 passes through distributor 31, gas circuit (dotted portion in figure) and total triple valve 29, hot water triple valve 9, cold water triple valve 19, the first hot-water valve 7, first Cold water tap 17 is separately connected, and controller is electricly connected with gas supply mechanism, distributor, and the selection of operated pneumatic valve can either realize essence Quasi- control, additionally it is possible to further shorten the response time.

During subject, hot water circulating pump 6, cold water circulation pump 16 are always on.

There is provided worst cold case: the first hot-water valve 7 is shut down, and hot water is formed certainly between boiler 1, hot water bypass branch 8 Circulation, and the first Cold water tap 17 is opened, realize constant temperature cold water to by the impact of spreadsheet engine, meanwhile, total triple valve 29 controls Cold-water reflux enters subcooled water reflux water route；

There is provided worst hot case: the first Cold water tap 17 is closed, and cold water is formed between cold water storage cistern 12, cold water bypass branch 18 Self-loopa, the first hot-water valve 7 are opened, and realize that constant-temperature hot water to by the impact of spreadsheet engine, provides worst hot case, meanwhile, always Triple valve 29 controls hot water return and enters superheated water reflux water route；

There is provided other temperature cases: the first hot-water valve 7, the first Cold water tap 17 are opened, by controlling hot water threeway The aperture of valve 9, cold water triple valve 19 adjusts hot water or cold water's mixed traffic, realizes required temperature operating condition, while total triple valve does phase It should adjust, so that hot water or cold water's reflux is consistent with output.

Claims (4)

1. a kind of cold and hot water slug thermostatic control system comprising controller, boiler, cold water storage cistern, hot water impulse circuit and cold Water slug circuit, the hot water impulse circuit include hot water output water route and hot water return water route, the cold water shock circuit packet Cold water output water route and cold-water reflux water route are included, hot water output water route is equipped with the first hot-water valve, the cold water output Water route is equipped with the first Cold water tap, it is characterised in that: hot water output water route is equipped with hot water triple valve, the hot water three Remaining one end of port valve is connected by the position that hot water bypass branch and the hot water return water route are located at the first hot-water valve front end Logical, cold water output water route is equipped with cold water triple valve, and remaining one end of the cold water triple valve passes through cold water bypass branch The position for being located at the first Cold water tap front end with the cold-water reflux water route is connected to, the system also includes with by spreadsheet engine The output end general pipeline of output end connection, the input terminal general pipeline being connected to the input terminal of engine, hot water output water route connection The output end of the boiler and the input terminal general pipeline, the hot water return water route connect the input terminal of the boiler and total One end of triple valve, cold water output water route connect the output end and the input terminal general pipeline of the cold water storage cistern, the cold water Reflux water route connects the input terminal of the cold water storage cistern and the other end of total triple valve, and remaining one end of total triple valve connects institute Output end general pipeline is stated, the input terminal general pipeline is equipped with supply water temperature probe, and the boiler is equipped with hot water temperature's probe, institute It states cold water storage cistern and cold water temperature probe, the supply water temperature probe, hot water temperature probe, cold water temperature probe is installed It is electrically connected with the controller, the controller is for controlling total triple valve, the hot water triple valve, the cold water three The start-stop of the aperture of port valve and first hot-water valve and first Cold water tap.

2. a kind of cold and hot water slug thermostatic control system according to claim 1, it is characterised in that: the hot water exports water Curb hot water flow direction is sequentially installed with the second hot-water valve, hot water circulating pump and first hot-water valve, the hot water Recirculation water curb hot water flow direction is sequentially installed with the hot water triple valve, heater and hot water flow switch；

Cold water output water route is sequentially installed with the second penstock, cold water circulation pump and described first cold along cold water flow direction Penstock, the cold-water reflux water route are sequentially installed with the cold water triple valve, refrigeration mechanism, cold water stream along cold water flow direction Amount switch, the refrigeration mechanism includes sequentially connected compressor, condenser, device for drying and filtering, expansion valve and evaporator, described The cold water pipes of evaporator are connected to the cold-water reflux water route.

3. a kind of cold and hot water slug thermostatic control system according to claim 2, it is characterised in that: total triple valve, The hot water triple valve, the cold water triple valve, first hot-water valve, first Cold water tap are operated pneumatic valve, The system also includes gas supply mechanism, the output end of the gas supply mechanism passes through distributor, gas circuit and total triple valve, described Hot water triple valve, the cold water triple valve, first hot-water valve, first Cold water tap are separately connected, the control Device is electricly connected with the gas supply mechanism, distributor.

4. a kind of cold and hot water slug thermostatic control system according to claim 3, it is characterised in that: the boiler is close Closed type water tank, the hot water upper box part are equipped with pressure reducing valve.